/* ========================================
   中电科风华企业官网 - 科技感炫酷样式 (优化版)
   ======================================== */

/* ============ CSS Variables ============ */
:root {
    --primary: #00D4FF;
    --secondary: #7B2FFF;
    --accent: #00FFA3;
    --bg-dark: #0a0a1a;
    --bg-mid: #0f0f2d;
    --bg-light: #1a1a3e;
    --text-primary: #FFFFFF;
    --text-secondary: #E0E0E0;
    --text-muted: #B0B0B0;
    --glow-cyan: 0 0 20px rgba(0, 212, 255, 0.5);
    --glow-purple: 0 0 20px rgba(123, 47, 255, 0.5);
}

/* ============ Base Styles ============ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* GPU 加速优化 */
.glass-card, .product-card, .value-card, .stat-card {
    transform: translateZ(0);
    will-change: transform;
}

/* ============ Particle Canvas ============ */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ============ Navigation ============ */
#navbar {
    background: linear-gradient(180deg, rgba(10, 10, 26, 0.95) 0%, rgba(10, 10, 26, 0) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

#navbar.scrolled {
    background: linear-gradient(180deg, rgba(10, 10, 26, 0.95) 0%, rgba(10, 10, 26, 0) 100%);
    box-shadow: none;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.2em;
}

.nav-link {
    position: relative;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: all 0.3s ease;
    transform: translateX(-50%);
    border-radius: 1px;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

/* ============ Hero Section ============ */
#home {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* 简化网格背景 - 使用静态渐变 */
.grid-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 50% 50%, rgba(0, 212, 255, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

/* 优化 Glitch 效果 - 减少动画复杂度 */
.main-title {
    position: relative;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    text-shadow: 0 0 20px var(--primary), 0 0 40px rgba(0, 212, 255, 0.5);
    animation: titleGlow 3s ease-in-out infinite;
}

@keyframes titleGlow {
    0%, 100% { text-shadow: 0 0 20px var(--primary), 0 0 40px rgba(0, 212, 255, 0.5); }
    50% { text-shadow: 0 0 30px var(--primary), 0 0 60px rgba(0, 212, 255, 0.7); }
}

/* 简化 glitch - 仅在 hover 时触发 */
.glitch-container:hover .main-title::before,
.glitch-container:hover .main-title::after {
    animation: glitchSimple 0.3s ease;
}

.main-title::before,
.main-title::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
}

.main-title::before {
    left: 2px;
    text-shadow: -2px 0 var(--secondary);
    clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
}

.main-title::after {
    left: -2px;
    text-shadow: 2px 0 var(--accent);
    clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
}

@keyframes glitchSimple {
    0%, 100% { opacity: 0; transform: translate(0); }
    20%, 60% { opacity: 1; transform: translate(-2px, 0); }
    40%, 80% { opacity: 1; transform: translate(2px, 0); }
}

/* Stats Cards */
.stat-card {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(123, 47, 255, 0.1) 100%);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--glow-cyan);
    border-color: var(--primary);
}

.stat-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-suffix {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.875rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-left: 0.125rem;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* CTA Buttons */
.cta-button {
    display: inline-flex;
    align-items: center;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button.primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: var(--glow-cyan);
}

.cta-button.primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.6);
}

.cta-button.secondary {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.cta-button.secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-3px);
}

/* Scroll Indicator - 简化动画 */
.scroll-indicator {
    animation: floatSlow 3s ease-in-out infinite;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--primary);
    border-radius: 13px;
    position: relative;
    margin: 0 auto;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--primary);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 1.5s infinite;
}

@keyframes scrollWheel {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(10px); }
}

@keyframes floatSlow {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* Corner Decorations */
.corner-decoration {
    position: absolute;
    width: 80px;
    height: 80px;
    border: 2px solid rgba(0, 212, 255, 0.2);
    pointer-events: none;
}

.corner-decoration.top-left {
    top: 100px;
    left: 30px;
    border-right: none;
    border-bottom: none;
}

.corner-decoration.top-right {
    top: 100px;
    right: 30px;
    border-left: none;
    border-bottom: none;
}

.corner-decoration.bottom-left {
    bottom: 100px;
    left: 30px;
    border-right: none;
    border-top: none;
}

.corner-decoration.bottom-right {
    bottom: 100px;
    right: 30px;
    border-left: none;
    border-top: none;
}

/* ============ Section Styles ============ */
section {
    position: relative;
    z-index: 1;
}

.section-header {
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.3em;
    padding: 0.5rem 1.5rem;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 50px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--text-primary), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============ Glass Card ============ */
.glass-card {
    background: linear-gradient(135deg, rgba(15, 15, 45, 0.8) 0%, rgba(26, 26, 62, 0.6) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: 20px;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

/* 玻璃卡片顶部光条 */
.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.glass-card:hover {
    border-color: rgba(0, 212, 255, 0.4);
    box-shadow: 0 8px 32px rgba(0, 212, 255, 0.15);
    transform: translateY(-5px);
}

/* ============ Tech Tags ============ */
.tech-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 25px;
    font-size: 0.875rem;
    color: var(--primary);
    transition: background 0.3s ease, transform 0.3s ease;
}

.tech-tag:hover {
    background: rgba(0, 212, 255, 0.2);
    transform: translateY(-2px);
}

/* ============ Tech Items ============ */
.tech-item {
    padding: 1rem;
    background: rgba(0, 212, 255, 0.05);
    border-left: 3px solid var(--primary);
    border-radius: 0 10px 10px 0;
    transition: background 0.3s ease, transform 0.3s ease;
}

.tech-item:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateX(10px);
}

/* ============ Value Cards ============ */
.value-card {
    background: linear-gradient(135deg, rgba(15, 15, 45, 0.8) 0%, rgba(26, 26, 62, 0.6) 100%);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.value-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: var(--glow-cyan);
}

.value-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

/* ============ Timeline ============ */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary), var(--secondary), var(--accent));
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 1rem 2rem;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-content {
    padding: 1.5rem;
}

.timeline-year {
    display: inline-block;
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 2rem;
    width: 16px;
    height: 16px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: var(--glow-cyan);
}

.timeline-item:nth-child(odd)::before {
    right: -8px;
}

.timeline-item:nth-child(even)::before {
    left: -8px;
}

/* ============ Future Milestone ============ */
.future-milestone {
    background: linear-gradient(135deg, rgba(20, 20, 60, 0.95) 0%, rgba(40, 30, 80, 0.9) 100%) !important;
    border: 1px solid rgba(255, 200, 50, 0.3) !important;
    position: relative;
    overflow: hidden;
}

.future-milestone::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 200, 50, 0.05), rgba(255, 140, 0, 0.05));
    pointer-events: none;
}

.future-milestone .timeline-year {
    color: #ffc832 !important;
}

.future-milestone h4 {
    color: #ffc832 !important;
}

/* ============ Product Cards ============ */
.product-card {
    display: flex;
    flex-direction: column;
    background: linear-gradient(135deg, rgba(15, 15, 45, 0.9) 0%, rgba(26, 26, 62, 0.7) 100%);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: 20px;
    overflow: hidden;
    transition: transform 0.4s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.product-card-link {
    display: flex;
    flex-direction: column;
    flex: 1;
    text-decoration: none;
    color: inherit;
}

/* 产品卡片科技边框角标 */
.product-card::before,
.product-card::after {
    content: '';
    position: absolute;
    width: 30px;
    height: 30px;
    border: 2px solid rgba(0, 212, 255, 0.3);
    transition: border-color 0.3s ease;
    z-index: 10;
    pointer-events: none;
}

.product-card::before {
    top: 8px;
    left: 8px;
    border-right: none;
    border-bottom: none;
}

.product-card::after {
    bottom: 8px;
    right: 8px;
    border-left: none;
    border-top: none;
}

.product-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), var(--glow-cyan);
}

.product-card:hover::before,
.product-card:hover::after {
    border-color: var(--primary);
}

.product-image-wrapper {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image {
    transform: scale(1.1);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.preview-btn {
    padding: 0.75rem 1.5rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.preview-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--glow-cyan);
}

.product-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
}

.product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.product-tags span {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
}

.product-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 0.75rem;
}

.product-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    background: linear-gradient(135deg, var(--text-primary), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.product-desc {
    color: var(--text-muted);
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    flex-grow: 1;
    /* 确保描述文字不会溢出 */
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.product-specs {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.product-specs span {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.product-specs i {
    color: var(--primary);
    font-size: 0.5rem;
    margin-right: 0.25rem;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 0.75rem;
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
    /* 确保按钮不会溢出 */
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.download-btn:hover {
    background: var(--primary);
    color: white;
    box-shadow: var(--glow-cyan);
}

/* 移动端优化 */
@media (max-width: 768px) {
    .download-btn {
        padding: 0.625rem;
        font-size: 0.875rem;
    }
}

/* ============ Application Cards ============ */
.application-card {
    background: linear-gradient(135deg, rgba(15, 15, 45, 0.8) 0%, rgba(26, 26, 62, 0.6) 100%);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.application-card:hover {
    transform: translateY(-5px) scale(1.05);
    border-color: var(--primary);
    box-shadow: var(--glow-cyan);
}

/* ============ Contact Section ============ */
.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
    flex-shrink: 0;
}

/* ============ Form Styles ============ */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: 1rem 1.25rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input option {
    background: var(--bg-dark);
    color: var(--text-primary);
}

.submit-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--glow-cyan);
}

/* ============ Lightbox ============ */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.lightbox.active {
    display: flex;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 3rem;
    color: white;
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.3s ease, transform 0.3s ease;
}

.lightbox-close:hover {
    color: var(--primary);
    transform: rotate(90deg);
}

.lightbox-img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 10px;
    box-shadow: 0 0 50px rgba(0, 212, 255, 0.3);
}

/* ============ 产品详情模态框 ============ */
.lightbox-content-modal {
    background: linear-gradient(135deg, #0f0f2d 0%, #1a1a3e 100%);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 16px;
    max-width: 900px;
    width: 95%;
    max-height: 90vh;
    overflow-y: auto;
    margin: auto;
}

.lightbox-content-modal .product-image-container img {
    max-height: none;
}

/* ============ Back to Top ============ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    box-shadow: var(--glow-cyan);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
}

/* ============ Social Icons ============ */
.social-icon {
    width: 40px;
    height: 40px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    transition: background 0.3s ease, color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.social-icon:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-5px);
    box-shadow: var(--glow-cyan);
}

/* ============ Responsive Styles ============ */
@media (max-width: 1024px) {
    .section-title {
        font-size: 2.5rem;
    }
    
    .main-title {
        font-size: 3rem !important;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 50px;
        padding-right: 0;
        text-align: left !important;
    }
    
    .timeline-item::before {
        left: 12px !important;
        right: auto !important;
    }
}

@media (max-width: 768px) {
    .main-title {
        font-size: 2.5rem !important;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .corner-decoration {
        display: none;
    }
    
    .product-image-wrapper {
        height: 180px;
    }
    
    /* 产品卡片移动端优化 */
    #products .grid {
        gap: 1.25rem;
    }
    
    .product-card {
        border-radius: 16px;
    }
    
    .product-content {
        padding: 1rem;
    }
    
    .product-title {
        font-size: 1.25rem;
    }
    
    .product-desc {
        font-size: 0.8125rem;
        -webkit-line-clamp: 2;
    }
    
    .product-tags span {
        padding: 0.2rem 0.5rem;
        font-size: 0.6875rem;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 2rem !important;
        letter-spacing: 0.1em;
    }
    
    .cta-button {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
}

/* ============ Custom Scrollbar ============ */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* ============ 性能优化：减少动画使用 ============ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============ 增强 SEO & 可访问性 ============ */

/* 焦点可见性（键盘导航） */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
    border-radius: 4px;
}

/* 跳过导航链接（无障碍） */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary);
    color: white;
    padding: 8px 16px;
    z-index: 1000;
    transition: top 0.3s;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0 0 8px 0;
}

.skip-link:focus {
    top: 0;
}

/* 图片懒加载占位效果 */
img[loading="lazy"] {
    background: rgba(0, 212, 255, 0.05);
    transition: background 0.3s ease;
}

img[loading="lazy"]:not([src]) {
    background: rgba(0, 0, 0, 0.2);
}

/* ============ 增强视觉层次 ============ */

/* Section 标题渐变装饰 */
.section-header .section-title {
    background: linear-gradient(135deg, #fff 30%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 数字滚动动画（数字计数器颜色） */
.stat-number {
    background: linear-gradient(135deg, #fff, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 玻璃卡片悬浮层次 */
.glass-card {
    position: relative;
    overflow: hidden;
}

.glass-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.04), transparent);
    transition: left 0.6s ease;
    pointer-events: none;
}

.glass-card:hover::after {
    left: 150%;
}



/* 技能标签悬浮微光 */
.tech-tag {
    transition: all 0.3s ease;
}

.tech-tag:hover {
    background: rgba(0, 212, 255, 0.2);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.15);
}

/* 时间线节点脉冲 */
.timeline-item::before {
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.timeline-item:hover::before {
    box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.2), var(--glow-cyan);
    transform: scale(1.2);
}

/* CTA 按钮按压效果 */
.cta-button.primary:active,
.cta-button.secondary:active {
    transform: scale(0.97) !important;
}

/* 滚动条优化（Firefox） */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--primary) var(--bg-dark);
}

/* 触控设备优化 */
@media (hover: none) and (pointer: coarse) {
    .product-overlay {
        opacity: 1 !important;
        background: rgba(0, 0, 0, 0.5);
    }
    
    .tech-card::before {
        display: none;
    }
}

/* ============ 增强响应式布局 ============ */

/* 中等屏幕优化 */
@media (min-width: 640px) and (max-width: 768px) {
    .stat-card {
        padding: 1.25rem;
    }
    
    .section-header .section-title {
        font-size: 2.2rem;
    }
    
    /* 产品卡片2列 */
    .product-card {
        border-radius: 16px;
    }
}

/* 移动端安全区域适配（刘海屏） */
@supports (padding: max(0px)) {
    #navbar {
        padding-left: max(1.5rem, env(safe-area-inset-left));
        padding-right: max(1.5rem, env(safe-area-inset-right));
    }
    
    .fixed.bottom-4 {
        bottom: max(1rem, env(safe-area-inset-bottom));
    }
}

/* ============ 轻量滚动动画 (替代AOS) ============ */
.aos-init {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos="fade-right"].aos-init {
    transform: translateX(-30px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-left"].aos-init {
    transform: translateX(30px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

[data-aos="zoom-in"].aos-init {
    transform: scale(0.9);
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
}

/* ============ 科技感增强效果 ============ */

/* 扫描线效果 */
.scan-line {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    opacity: 0.3;
    animation: scanMove 8s linear infinite;
    pointer-events: none;
    z-index: 999;
}

@keyframes scanMove {
    0% { top: -2px; }
    100% { top: 100vh; }
}

/* 呼吸光效 */
@keyframes breathe {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.breathing-glow {
    animation: breathe 3s ease-in-out infinite;
}

/* 脉冲光点 */
.pulse-dot {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--primary), 0 0 20px var(--primary);
    animation: pulse 2s ease-in-out infinite;
}

.pulse-dot::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    width: 14px;
    height: 14px;
    border: 1px solid var(--primary);
    border-radius: 50%;
    animation: ripple 2s ease-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.3); }
}

@keyframes ripple {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(2.5); opacity: 0; }
}

/* 科技感边框 */
.tech-border {
    position: relative;
}

.tech-border::before,
.tech-border::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid var(--primary);
}

.tech-border::before {
    top: -2px;
    left: -2px;
    border-right: none;
    border-bottom: none;
}

.tech-border::after {
    bottom: -2px;
    right: -2px;
    border-left: none;
    border-top: none;
}

/* 动态网格背景 */
.tech-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { background-position: 0 0; }
    100% { background-position: 50px 50px; }
}

/* 六边形装饰 */
.hexagon {
    position: absolute;
    width: 100px;
    height: 57.74px;
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    transform: rotate(30deg);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    animation: hexFloat 6s ease-in-out infinite;
}

@keyframes hexFloat {
    0%, 100% { transform: rotate(30deg) translateY(0); }
    50% { transform: rotate(30deg) translateY(-20px); }
}

/* 电路线条装饰 */
.circuit-line {
    position: absolute;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    height: 1px;
    animation: circuitFlow 3s ease-in-out infinite;
}

@keyframes circuitFlow {
    0% { opacity: 0.2; transform: scaleX(0); }
    50% { opacity: 1; transform: scaleX(1); }
    100% { opacity: 0.2; transform: scaleX(0); }
}

/* 渐变光晕背景 */
.glow-bg {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
}

.glow-bg-1 {
    top: -200px;
    right: -200px;
    background: radial-gradient(circle, var(--primary), transparent);
    animation: glowFloat1 15s ease-in-out infinite;
}

.glow-bg-2 {
    bottom: -200px;
    left: -200px;
    background: radial-gradient(circle, var(--secondary), transparent);
    animation: glowFloat2 18s ease-in-out infinite;
}

.glow-bg-3 {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, var(--accent), transparent);
    animation: glowFloat3 20s ease-in-out infinite;
}

@keyframes glowFloat1 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-50px, 50px); }
}

@keyframes glowFloat2 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

@keyframes glowFloat3 {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.2); }
}

/* 数据流效果 */
.data-flow {
    position: absolute;
    overflow: hidden;
}

.data-flow::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    animation: dataFlow 3s linear infinite;
}

@keyframes dataFlow {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* 科技卡片光效 */
.tech-card {
    position: relative;
    overflow: hidden;
}

.tech-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.tech-card:hover::before {
    left: 100%;
}

/* 数字雨效果 (可选) */
.matrix-rain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0.03;
}

/* 角落装饰 */
.corner-tech {
    position: absolute;
    width: 80px;
    height: 80px;
    pointer-events: none;
}

.corner-tech::before,
.corner-tech::after {
    content: '';
    position: absolute;
    background: var(--primary);
}

.corner-tech.top-left {
    top: 20px;
    left: 20px;
}

.corner-tech.top-left::before {
    top: 0;
    left: 0;
    width: 40px;
    height: 2px;
}

.corner-tech.top-left::after {
    top: 0;
    left: 0;
    width: 2px;
    height: 40px;
}

.corner-tech.bottom-right {
    bottom: 20px;
    right: 20px;
}

.corner-tech.bottom-right::before {
    bottom: 0;
    right: 0;
    width: 40px;
    height: 2px;
}

.corner-tech.bottom-right::after {
    bottom: 0;
    right: 0;
    width: 2px;
    height: 40px;
}

/* 标题装饰线 */
.title-decoration::before {
    content: '';
    position: absolute;
    left: -30px;
    top: 50%;
    width: 20px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), transparent);
}

.title-decoration::after {
    content: '';
    position: absolute;
    right: -30px;
    top: 50%;
    width: 20px;
    height: 2px;
    background: linear-gradient(-90deg, var(--primary), transparent);
}

/* ============ 视频背景效果 ============ */
.video-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    opacity: 0.4;
}

.video-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(180deg, 
            rgba(10, 10, 26, 0.8) 0%, 
            rgba(10, 10, 26, 0.6) 30%,
            rgba(10, 10, 26, 0.6) 70%,
            rgba(10, 10, 26, 0.9) 100%
        ),
        linear-gradient(90deg, 
            rgba(10, 10, 26, 0.5) 0%, 
            transparent 30%,
            transparent 70%,
            rgba(10, 10, 26, 0.5) 100%
        );
    z-index: 1;
}

/* 视频扫描线效果 */
.video-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: linear-gradient(
        180deg,
        transparent 0%,
        rgba(0, 212, 255, 0.03) 50%,
        transparent 100%
    );
    animation: bgScan 8s linear infinite;
    pointer-events: none;
}

@keyframes bgScan {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(100%); }
}

/* ============ Hero Brand Block (方案D 高端品牌风) ============ */

/* 眉毛标识行 */
.hero-eyebrow {
    display: flex;
    justify-content: center;
}

.hero-tag-line {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.35em;
    color: var(--primary);
    padding: 0.45rem 1.5rem;
    border: 1px solid rgba(0, 212, 255, 0.25);
    border-radius: 2px;
    background: rgba(0, 212, 255, 0.05);
    backdrop-filter: blur(4px);
    animation: fadeInDown 0.8s ease both;
}

.hero-tag-dot {
    display: inline-block;
    width: 5px;
    height: 5px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--primary);
    animation: pulse 2s ease-in-out infinite;
}

/* 英文主 Slogan */
.hero-main-slogan {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(2.2rem, 6vw, 5.5rem);
    font-weight: 900;
    letter-spacing: 0.15em;
    line-height: 1.1;
    background: linear-gradient(135deg, #ffffff 0%, var(--primary) 50%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.9s ease 0.1s both;
    text-shadow: none;
}

.hero-slogan-divider {
    color: var(--primary);
    -webkit-text-fill-color: var(--primary);
    margin: 0 0.3em;
    opacity: 0.6;
    font-weight: 300;
}

/* 中文副 Slogan */
.hero-main-slogan-cn {
    font-size: clamp(1.1rem, 2.8vw, 2rem);
    font-weight: 300;
    letter-spacing: 0.4em;
    color: rgba(255, 255, 255, 0.75);
    animation: fadeInUp 0.9s ease 0.2s both;
}

/* 品牌身份背书 */
.hero-identity {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.45);
    letter-spacing: 0.1em;
    animation: fadeInUp 0.9s ease 0.3s both;
}

.hero-identity-name {
    color: rgba(255,255,255,0.6);
    font-weight: 500;
}

.hero-identity-sep {
    color: rgba(0, 212, 255, 0.4);
    font-weight: 200;
}

.hero-identity-sub {
    font-size: 0.8rem;
}

/* 能力指示条 */
.hero-capability-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0;
    animation: fadeInUp 0.9s ease 0.4s both;
    padding: 1rem 2rem;
    border: 1px solid rgba(0, 212, 255, 0.12);
    border-radius: 4px;
    background: rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(8px);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cap-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.3rem 1.2rem;
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s ease;
}

.hero-cap-item i {
    color: var(--primary);
    font-size: 0.9rem;
}

.hero-cap-item:hover {
    color: var(--primary);
}

.hero-cap-sep {
    width: 1px;
    height: 20px;
    background: rgba(0, 212, 255, 0.2);
    flex-shrink: 0;
}

/* 入场动画 */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* 响应式 */
@media (max-width: 768px) {
    .hero-main-slogan {
        letter-spacing: 0.08em;
    }
    .hero-main-slogan-cn {
        letter-spacing: 0.2em;
    }
    .hero-capability-bar {
        gap: 0;
        padding: 0.75rem 0.5rem;
    }
    .hero-cap-item {
        padding: 0.3rem 0.6rem;
        font-size: 0.75rem;
    }
    .hero-cap-sep {
        height: 16px;
    }
    .hero-identity {
        flex-direction: column;
        gap: 0.25rem;
    }
    .hero-identity-sep {
        display: none;
    }
}

/* ============ 招聘页面专用样式 ============ */

/* Hero 统计数字 */
.jobs-stat-item {
    text-align: center;
    padding: 1rem;
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(4px);
}

.jobs-stat-num {
    display: block;
    font-family: 'Orbitron', sans-serif;
    font-size: 2.2rem;
    font-weight: 900;
    color: white;
    line-height: 1.2;
}

.jobs-stat-label {
    display: block;
    font-size: 0.75rem;
    color: rgba(255,255,255,0.4);
    letter-spacing: 0.15em;
    margin-top: 0.25rem;
}

/* Section line */
.section-line {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), transparent);
    margin: 0 auto;
}

/* 职位卡片 */
.job-card {
    background: linear-gradient(135deg, rgba(15, 15, 45, 0.9) 0%, rgba(26, 26, 62, 0.7) 100%);
    border: 1px solid rgba(0, 212, 255, 0.12);
    border-radius: 16px;
    overflow: hidden;
    transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.job-card:hover {
    border-color: rgba(0, 212, 255, 0.35);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 20px rgba(0, 212, 255, 0.08);
    transform: translateY(-2px);
}

.job-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 1.75rem;
    border-bottom: 1px solid rgba(0, 212, 255, 0.08);
}

.job-title-row {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.job-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(123, 47, 255, 0.15));
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--primary);
    flex-shrink: 0;
}

.job-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.2rem;
}

.job-subtitle {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.35);
    letter-spacing: 0.05em;
}

.job-tags {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.job-tag {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.job-tag-blue {
    background: rgba(0, 212, 255, 0.1);
    color: var(--primary);
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.job-tag-green {
    background: rgba(0, 255, 163, 0.1);
    color: var(--accent);
    border: 1px solid rgba(0, 255, 163, 0.2);
}

.job-tag-purple {
    background: rgba(123, 47, 255, 0.1);
    color: #a87fff;
    border: 1px solid rgba(123, 47, 255, 0.2);
}

.job-tag-orange {
    background: rgba(255, 165, 0, 0.1);
    color: #FFA500;
    border: 1px solid rgba(255, 165, 0, 0.2);
}

.job-card-body {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.3s ease;
    padding: 0 1.75rem;
}

.job-card.job-open .job-card-body {
    opacity: 1;
}

.job-section {
    padding: 1.25rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.job-section:last-of-type {
    border-bottom: none;
}

.job-section-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: white;
    margin-bottom: 0.75rem;
    letter-spacing: 0.05em;
}

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

.job-list li {
    padding: 0.35rem 0 0.35rem 1.25rem;
    position: relative;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
}

.job-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-size: 0.7rem;
    top: 0.45rem;
}

.job-meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    padding: 1.25rem 0;
}

.job-meta-item {
    display: flex;
    align-items: center;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.5);
}

.job-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.75rem;
    border-top: 1px solid rgba(0, 212, 255, 0.08);
    background: rgba(0,0,0,0.1);
}

.job-apply-btn {
    padding: 0.6rem 1.5rem;
    background: linear-gradient(135deg, var(--primary), rgba(0, 212, 255, 0.7));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.job-apply-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.4);
}

.job-detail-btn {
    padding: 0.6rem 1rem;
    background: transparent;
    color: rgba(255,255,255,0.4);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    font-size: 0.8rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.job-detail-btn:hover {
    color: var(--primary);
    border-color: rgba(0, 212, 255, 0.3);
}

/* 投递表单 */
.apply-notice {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: 12px;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.6;
}

.apply-notice-icon {
    font-size: 1.2rem;
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 1.5rem;
}

.form-group-full {
    grid-column: 1 / -1;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2300D4FF' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.file-upload-area {
    border: 2px dashed rgba(0, 212, 255, 0.25);
    border-radius: 12px;
    padding: 2.5rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.3s ease, background 0.3s ease;
}

.file-upload-area:hover,
.file-upload-area.drag-over {
    border-color: var(--primary);
    background: rgba(0, 212, 255, 0.05);
}

.file-name-display {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: 10px;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.7);
}

.file-remove-btn {
    background: transparent;
    border: none;
    color: rgba(255,255,255,0.35);
    cursor: pointer;
    font-size: 0.875rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: color 0.2s ease, background 0.2s ease;
}

.file-remove-btn:hover {
    color: #ff4d4f;
    background: rgba(255, 77, 79, 0.1);
}

.form-submit-row {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.form-submit-btn {
    padding: 0.9rem 3rem;
    background: linear-gradient(135deg, var(--primary), rgba(0, 212, 255, 0.7));
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.form-submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.4);
}

.form-submit-btn:disabled {
    cursor: not-allowed;
}

.form-note {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.25);
}

/* 提交成功 */
.apply-success {
    text-align: center;
    padding: 3rem 1.5rem;
}

.apply-success-icon {
    font-size: 4rem;
    color: var(--accent);
    margin-bottom: 1.5rem;
}

/* 响应式 */
@media (max-width: 768px) {
    .jobs-stat-num {
        font-size: 1.6rem;
    }
    .job-card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    .job-meta-row {
        gap: 0.75rem;
    }
    .job-card-footer {
        flex-direction: column;
        gap: 0.75rem;
    }
    .job-apply-btn,
    .job-detail-btn {
        width: 100%;
        justify-content: center;
    }
    .form-grid {
        grid-template-columns: 1fr;
    }
}

/* ============ 新闻动态页面专用样式 ============ */

/* 新闻搜索框 */
.news-search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.news-search-icon {
    position: absolute;
    left: 1.25rem;
    color: var(--text-muted);
    font-size: 1rem;
}

.news-search-input {
    width: 100%;
    padding: 1rem 1.25rem 1rem 3rem;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 50px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.news-search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15), var(--glow-cyan);
}

.news-search-input::placeholder {
    color: var(--text-muted);
}

/* 新闻分类筛选 */
.news-filter-container {
    display: flex;
    justify-content: center;
}

.news-filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.5rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: 16px;
}

.news-filter-tab {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
}

.news-filter-tab:hover {
    color: var(--primary);
    background: rgba(0, 212, 255, 0.08);
}

.news-filter-tab.active {
    background: linear-gradient(135deg, var(--primary), rgba(0, 212, 255, 0.7));
    color: white;
    border-color: transparent;
    box-shadow: var(--glow-cyan);
}

/* 新闻网格 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2rem;
}

/* 新闻卡片 */
.news-card {
    background: linear-gradient(135deg, rgba(15, 15, 45, 0.9) 0%, rgba(26, 26, 62, 0.7) 100%);
    border: 1px solid rgba(0, 212, 255, 0.12);
    border-radius: 20px;
    overflow: hidden;
    transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.4s ease;
}

.news-card:hover {
    border-color: rgba(0, 212, 255, 0.35);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), 0 0 20px rgba(0, 212, 255, 0.08);
    transform: translateY(-5px);
}

.news-card-content {
    position: relative;
    z-index: 1;
    background: linear-gradient(135deg, rgba(15, 15, 45, 0.9) 0%, rgba(26, 26, 62, 0.7) 100%);
}

.news-card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card:hover .news-card-image img {
    transform: scale(1.08);
}

.news-card-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    backdrop-filter: blur(8px);
}

.news-card-badge.company {
    background: rgba(0, 212, 255, 0.85);
    color: white;
}

.news-card-badge.industry {
    background: rgba(123, 47, 255, 0.85);
    color: white;
}

.news-card-badge.tech {
    background: rgba(0, 255, 163, 0.85);
    color: #0a0a1a;
}

.news-card-badge.event {
    background: rgba(255, 165, 0, 0.85);
    color: white;
}

.news-card-content {
    padding: 1.5rem;
}

.news-card-meta {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 0.75rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.news-card-meta span {
    display: flex;
    align-items: center;
}

.news-card-title {
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 0.75rem;
}

.news-card-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.news-card:hover .news-card-title a {
    color: white;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.news-card-excerpt {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.3s ease, gap 0.3s ease;
    gap: 0.5rem;
}

.news-card:hover .news-card-link {
    transform: translateX(5px);
    gap: 0.75rem;
}

/* 新闻分页 */
.news-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

.news-pagination-btn {
    min-width: 42px;
    height: 42px;
    padding: 0 0.75rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.news-pagination-btn:hover:not(:disabled):not(.active) {
    background: rgba(0, 212, 255, 0.1);
    border-color: rgba(0, 212, 255, 0.3);
    color: var(--primary);
}

.news-pagination-btn.active {
    background: linear-gradient(135deg, var(--primary), rgba(0, 212, 255, 0.7));
    border-color: transparent;
    color: white;
    box-shadow: var(--glow-cyan);
}

.news-pagination-btn:disabled,
.news-pagination-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.news-pagination-ellipsis {
    color: var(--text-muted);
    padding: 0 0.5rem;
}

/* 新闻页面响应式 */
@media (max-width: 768px) {
    .news-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .news-filter-tabs {
        width: 100%;
        justify-content: center;
    }
    
    .news-filter-tab {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .news-card-image {
        height: 180px;
    }
    
    .news-pagination-btn {
        min-width: 38px;
        height: 38px;
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .news-filter-tabs {
        gap: 0.35rem;
        padding: 0.35rem;
    }
    
    .news-filter-tab {
        padding: 0.4rem 0.75rem;
        font-size: 0.75rem;
    }
    
    .news-filter-tab i {
        display: none;
    }
}

/* ============ 产品详情页面样式 ============ */

/* 产品详情卡片 */
.product-detail-card {
    background: linear-gradient(135deg, rgba(15, 15, 45, 0.95) 0%, rgba(26, 26, 62, 0.8) 100%);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: 20px;
    padding: 2rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.product-detail-card:hover {
    border-color: rgba(0, 212, 255, 0.35);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3), 0 0 30px rgba(0, 212, 255, 0.1);
}

/* PDF下载按钮 */
.pdf-download-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a5a 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pdf-download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
    color: white;
}

/* 产品规格表格 */
.spec-table {
    width: 100%;
    border-collapse: collapse;
}

.spec-table tr {
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.spec-table tr:last-child {
    border-bottom: none;
}

.spec-table td {
    padding: 0.6rem 0;
    font-size: 0.875rem;
}

.spec-table td:first-child {
    color: #00d4ff;
    font-weight: 500;
    width: 40%;
}

.spec-table td:last-child {
    color: #ffffff;
}

/* 参数徽章 */
.param-badge {
    display: inline-block;
    background: rgba(0, 212, 255, 0.15);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: #00d4ff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    margin: 2px;
}

/* 产品对比表格 */
.compare-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.compare-table th,
.compare-table td {
    padding: 12px 16px;
    border: 1px solid rgba(0, 212, 255, 0.15);
    text-align: left;
    vertical-align: middle;
}

.compare-table th {
    background: rgba(0, 212, 255, 0.1);
    color: #00d4ff;
    font-weight: 600;
    white-space: nowrap;
}

.compare-table tr:hover td {
    background: rgba(0, 212, 255, 0.03);
}

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

/* 模态框样式 */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: linear-gradient(135deg, #0f0f2d 0%, #1a1a3e 100%);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 16px;
    max-width: 900px;
    width: 95%;
    max-height: 90vh;
    overflow-y: auto;
    margin: auto;
    padding: 2rem;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    position: relative;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

/* 响应式 */
@media (max-width: 768px) {
    .product-detail-card {
        padding: 1.5rem;
    }
    
    .spec-table td:first-child {
        width: 35%;
    }
    
    .compare-table {
        font-size: 0.75rem;
    }
    
    .compare-table th,
    .compare-table td {
        padding: 8px 10px;
    }
    
    .modal-content {
        padding: 1.5rem;
    }
}