/* ============================================
   厦门正职喵科技有限公司 - 企业官网样式
   设计理念：赛博朋克 + 科技感 + 未来主义
   ============================================ */

/* --- CSS 变量 --- */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #0f0f1a;
    --bg-card: rgba(15, 15, 30, 0.6);
    --border-color: rgba(0, 212, 255, 0.15);
    --text-primary: #e8e8f0;
    --text-secondary: #8b8ba0;
    --accent-cyan: #00d4ff;
    --accent-purple: #7b2ff7;
    --accent-pink: #ff2d95;
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #7b2ff7 50%, #ff2d95 100%);
    --gradient-dark: linear-gradient(135deg, #0a0a0f 0%, #0f0f1a 50%, #0d0d25 100%);
    --glow-cyan: 0 0 20px rgba(0, 212, 255, 0.4), 0 0 60px rgba(0, 212, 255, 0.15);
    --glow-purple: 0 0 20px rgba(123, 47, 247, 0.4), 0 0 60px rgba(123, 47, 247, 0.15);
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Noto Sans SC', sans-serif;
    --transition-fast: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-cyan) var(--bg-primary);
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: linear-gradient(180deg, var(--accent-cyan), var(--accent-purple)); border-radius: 3px; }

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ============================================
   粒子背景画布
   ============================================ */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ============================================
   导航栏
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 0 2rem;
    transition: var(--transition-fast);
    backdrop-filter: blur(0px);
}

.header.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 10;
}

.logo-icon {
    position: relative;
    animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    position: relative;
    padding: 0.3rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
    border-radius: 1px;
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 10;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
    border-radius: 1px;
}

/* ============================================
   英雄区域
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 2rem 80px;
    z-index: 1;
    overflow: hidden;
}

.hero-grid-bg {
    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: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 30%, transparent 70%);
}

.hero-content {
    max-width: 600px;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--accent-cyan);
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease-out;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-cyan);
    box-shadow: 0 0 10px var(--accent-cyan);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
    font-family: var(--font-display);
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease-out 0.1s both;
}

.title-line {
    display: block;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: 0.02em;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2.5rem;
    max-width: 520px;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition-fast);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: var(--glow-purple);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(123, 47, 247, 0.5), 0 0 60px rgba(0, 212, 255, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    border-color: var(--accent-cyan);
    background: rgba(0, 212, 255, 0.05);
    transform: translateY(-3px);
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- 机器人3D展示 --- */
.hero-robot {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
}

.robot-3d-container {
    position: relative;
    width: 400px;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: robotFloat 6s ease-in-out infinite;
}

@keyframes robotFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.robot-body {
    position: relative;
    z-index: 2;
}

.robot-head {
    position: relative;
    width: 80px;
    height: 70px;
    background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    border: 2px solid rgba(0, 212, 255, 0.3);
    border-radius: 15px 15px 5px 5px;
    margin: 0 auto 5px;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.1), inset 0 0 30px rgba(0, 212, 255, 0.05);
    animation: headTilt 4s ease-in-out infinite;
}

@keyframes headTilt {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(2deg); }
    75% { transform: rotate(-2deg); }
}

.robot-face {
    position: relative;
    padding: 15px 12px;
}

.eye {
    position: absolute;
    width: 14px;
    height: 18px;
    background: #000;
    border: 2px solid var(--accent-cyan);
    border-radius: 8px;
    top: 12px;
    overflow: hidden;
    box-shadow: 0 0 8px rgba(0, 212, 255, 0.3);
}

.left-eye { left: 14px; }
.right-eye { right: 14px; }

.eye-glow {
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--accent-cyan);
    opacity: 0.8;
    animation: eyeGlow 3s ease-in-out infinite;
    border-radius: 8px;
}

@keyframes eyeGlow {
    0%, 100% { opacity: 0.6; box-shadow: 0 0 8px var(--accent-cyan); }
    50% { opacity: 1; box-shadow: 0 0 20px var(--accent-cyan), 0 0 40px var(--accent-cyan); }
}

.mouth {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 3px;
    background: var(--accent-cyan);
    border-radius: 2px;
    box-shadow: 0 0 6px var(--accent-cyan);
    animation: mouthMove 2s ease-in-out infinite;
}

@keyframes mouthMove {
    0%, 100% { width: 24px; }
    50% { width: 16px; }
}

.antenna {
    position: absolute;
    top: -20px;
    width: 2px;
    height: 20px;
    background: var(--accent-purple);
    border-radius: 1px;
}

.left-antenna {
    left: 20px;
    transform: rotate(-15deg);
    animation: antennaWave 2s ease-in-out infinite;
}

.right-antenna {
    right: 20px;
    transform: rotate(15deg);
    animation: antennaWave 2s ease-in-out 0.5s infinite;
}

@keyframes antennaWave {
    0%, 100% { transform: rotate(-15deg); }
    50% { transform: rotate(-25deg); }
}

.right-antenna {
    animation: antennaWaveR 2s ease-in-out 0.5s infinite;
}

@keyframes antennaWaveR {
    0%, 100% { transform: rotate(15deg); }
    50% { transform: rotate(25deg); }
}

.antenna::after {
    content: '';
    position: absolute;
    top: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-purple);
    box-shadow: 0 0 10px var(--accent-purple);
    animation: pulse 1.5s ease-in-out infinite;
}

.robot-torso {
    width: 90px;
    height: 100px;
    background: linear-gradient(180deg, #16213e 0%, #0f3460 100%);
    border: 2px solid rgba(123, 47, 247, 0.3);
    border-radius: 10px 10px 5px 5px;
    margin: 0 auto;
    box-shadow: 0 0 25px rgba(123, 47, 247, 0.15);
}

.chest-core {
    position: relative;
    width: 50px;
    height: 50px;
    margin: 25px auto 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.core-ring {
    position: absolute;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid rgba(0, 212, 255, 0.3);
    animation: coreSpin 4s linear infinite;
}

@keyframes coreSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.core-ring::before {
    content: '';
    position: absolute;
    top: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 50%;
    box-shadow: 0 0 15px var(--accent-cyan);
}

.core-center {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-cyan), var(--accent-purple));
    box-shadow: 0 0 25px rgba(0, 212, 255, 0.5), 0 0 50px rgba(123, 47, 247, 0.3);
    animation: corePulse 2s ease-in-out infinite;
}

@keyframes corePulse {
    0%, 100% { transform: scale(1); opacity: 0.9; }
    50% { transform: scale(1.3); opacity: 1; }
}

.robot-arms {
    position: absolute;
    top: 85px;
    width: 100%;
}

.arm {
    position: absolute;
    width: 18px;
}

.left-arm {
    left: -30px;
    animation: armSwingLeft 3s ease-in-out infinite;
}

.right-arm {
    right: -30px;
    animation: armSwingRight 3s ease-in-out infinite;
}

@keyframes armSwingLeft {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(15deg); }
}

@keyframes armSwingRight {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(-15deg); }
}

.arm-upper {
    width: 18px;
    height: 50px;
    background: linear-gradient(180deg, #16213e, #0f3460);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 5px;
    margin-bottom: 4px;
}

.arm-lower {
    width: 14px;
    height: 40px;
    background: linear-gradient(180deg, #0f3460, #1a1a2e);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: 5px;
    margin: 0 auto 4px;
}

.hand {
    width: 20px;
    height: 20px;
    background: #16213e;
    border: 1px solid var(--accent-cyan);
    border-radius: 50%;
    margin: 0 auto;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.2);
}

.robot-legs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 2px;
}

.leg {
    width: 22px;
    height: 60px;
    background: linear-gradient(180deg, #0f3460, #1a1a2e);
    border: 1px solid rgba(123, 47, 247, 0.2);
    border-radius: 5px 5px 8px 8px;
}

/* 浮动光球 */
.floating-orb {
    position: absolute;
    border-radius: 50%;
    z-index: 1;
}

.orb-1 {
    width: 30px;
    height: 30px;
    background: radial-gradient(circle, rgba(0,212,255,0.8), transparent);
    top: 10%;
    right: 0;
    animation: orbFloat 4s ease-in-out infinite;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.4);
}

.orb-2 {
    width: 20px;
    height: 20px;
    background: radial-gradient(circle, rgba(123,47,247,0.8), transparent);
    bottom: 20%;
    left: 0;
    animation: orbFloat 5s ease-in-out 1s infinite;
    box-shadow: 0 0 20px rgba(123, 47, 247, 0.4);
}

.orb-3 {
    width: 15px;
    height: 15px;
    background: radial-gradient(circle, rgba(255,45,149,0.8), transparent);
    top: 50%;
    right: -20px;
    animation: orbFloat 3.5s ease-in-out 0.5s infinite;
    box-shadow: 0 0 20px rgba(255, 45, 149, 0.4);
}

@keyframes orbFloat {
    0%, 100% { transform: translateY(0) scale(1); opacity: 0.6; }
    50% { transform: translateY(-30px) scale(1.3); opacity: 1; }
}

/* 滚动提示 */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 2;
    animation: fadeInUp 1s ease-out 1s both;
}

.scroll-indicator span {
    font-size: 0.75rem;
    color: var(--text-secondary);
    letter-spacing: 0.1em;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(180deg, var(--accent-cyan), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0%, 100% { height: 40px; opacity: 1; }
    50% { height: 60px; opacity: 0.5; }
}

/* ============================================
   数据统计条
   ============================================ */
.stats-bar {
    position: relative;
    z-index: 2;
    padding: 0 2rem;
    margin-top: -40px;
}

.stats-container {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2px;
    background: rgba(15, 15, 30, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.stat-item {
    text-align: center;
    padding: 0.5rem;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-plus,
.stat-suffix {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-cyan);
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* ============================================
   通用区块样式
   ============================================ */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.section-tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--accent-cyan);
    text-transform: uppercase;
    margin-bottom: 1rem;
    padding: 4px 12px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 4px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    margin-bottom: 1rem;
    letter-spacing: 0.02em;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ============================================
   关于我们
   ============================================ */
.about-section {
    position: relative;
    z-index: 2;
    padding: 120px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 3rem 2rem;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.about-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px rgba(0, 212, 255, 0.05);
}

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

.card-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.15);
    color: var(--accent-cyan);
    transition: var(--transition-fast);
}

.about-card:hover .card-icon {
    background: rgba(0, 212, 255, 0.1);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.2);
}

.about-card h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.about-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ============================================
   核心产品
   ============================================ */
.products-section {
    position: relative;
    z-index: 2;
    padding: 120px 0;
    background: var(--bg-secondary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-slow);
    backdrop-filter: blur(10px);
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: rgba(123, 47, 247, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 60px rgba(123, 47, 247, 0.05);
}

.product-visual {
    height: 200px;
    background: linear-gradient(180deg, rgba(0, 212, 255, 0.05), rgba(123, 47, 247, 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-visual::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    border: 1px solid rgba(0, 212, 255, 0.08);
    border-radius: 50%;
    animation: productOrbit 8s linear infinite;
}

@keyframes productOrbit {
    from { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.2); }
    to { transform: rotate(360deg) scale(1); }
}

.product-robot {
    position: relative;
    z-index: 1;
}

.product-robot .pr-head {
    width: 40px;
    height: 35px;
    background: linear-gradient(180deg, #1a1a2e, #16213e);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 10px 10px 3px 3px;
    margin: 0 auto 3px;
}

.product-robot .pr-body {
    width: 50px;
    height: 55px;
    background: linear-gradient(180deg, #16213e, #0f3460);
    border: 1px solid rgba(123, 47, 247, 0.3);
    border-radius: 6px;
    margin: 0 auto;
}

.product-robot .pr-display {
    width: 40px;
    height: 20px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 3px;
    margin: -40px auto 0;
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
}

.display-text {
    font-family: var(--font-display);
    font-size: 0.5rem;
    color: var(--accent-cyan);
    letter-spacing: 0.1em;
}

.product-card:hover .product-robot {
    animation: productBounce 0.6s ease;
}

@keyframes productBounce {
    0%, 100% { transform: translateY(0); }
    30% { transform: translateY(-15px); }
    50% { transform: translateY(0); }
    70% { transform: translateY(-7px); }
}

.product-info {
    padding: 2rem;
}

.product-category {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-purple);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.product-info h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0.5rem 0 1rem;
}

.product-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.product-features {
    margin-bottom: 1.5rem;
}

.product-features li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 0.3rem 0;
    padding-left: 1.2rem;
    position: relative;
}

.product-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 5px;
    background: var(--accent-cyan);
    border-radius: 50%;
}

.product-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-cyan);
    transition: var(--transition-fast);
}

.product-link:hover {
    color: var(--accent-purple);
    padding-left: 5px;
}

/* ============================================
   AI机器人展示
   ============================================ */
.ai-section {
    position: relative;
    z-index: 2;
    padding: 120px 0;
    overflow: hidden;
}

.ai-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 212, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: 0;
}

.ai-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

/* AI大脑动画 */
.ai-brain-animation {
    position: relative;
    width: 350px;
    height: 350px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.brain-core {
    position: relative;
    width: 200px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.brain-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid;
}

.ring-1 {
    width: 200px;
    height: 200px;
    border-color: rgba(0, 212, 255, 0.2);
    animation: ringRotate 8s linear infinite;
}

.ring-2 {
    width: 150px;
    height: 150px;
    border-color: rgba(123, 47, 247, 0.3);
    animation: ringRotate 6s linear infinite reverse;
}

.ring-3 {
    width: 100px;
    height: 100px;
    border-color: rgba(255, 45, 149, 0.2);
    animation: ringRotate 4s linear infinite;
}

@keyframes ringRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.brain-node {
    position: relative;
    z-index: 2;
    animation: nodePulse 3s ease-in-out infinite;
}

@keyframes nodePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

.data-streams {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.stream {
    position: absolute;
    width: 1px;
    background: linear-gradient(180deg, var(--accent-cyan), transparent);
    animation: streamFlow 2s ease-in-out infinite;
    opacity: 0;
}

.s1 { left: 20%; top: 0; height: 80px; animation-delay: 0s; }
.s2 { left: 35%; top: 0; height: 60px; animation-delay: 0.3s; }
.s3 { left: 50%; top: 0; height: 100px; animation-delay: 0.6s; }
.s4 { right: 20%; bottom: 0; height: 70px; animation-delay: 0.9s; background: linear-gradient(0deg, var(--accent-purple), transparent); }
.s5 { right: 35%; bottom: 0; height: 90px; animation-delay: 0.4s; background: linear-gradient(0deg, var(--accent-purple), transparent); }
.s6 { right: 50%; bottom: 0; height: 50px; animation-delay: 0.7s; background: linear-gradient(0deg, var(--accent-purple), transparent); }

@keyframes streamFlow {
    0% { opacity: 0; transform: scaleY(0); }
    30% { opacity: 0.8; }
    70% { opacity: 0.4; }
    100% { opacity: 0; transform: scaleY(1); }
}

.ai-features {
    display: grid;
    gap: 2rem;
}

.ai-feature-item {
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.ai-feature-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
    border-radius: 0 2px 2px 0;
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.ai-feature-item:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateX(8px);
}

.ai-feature-item:hover::before {
    transform: scaleY(1);
}

.feature-number {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 900;
    color: rgba(0, 212, 255, 0.15);
    margin-bottom: 0.5rem;
}

.ai-feature-item h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.ai-feature-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ============================================
   技术实力
   ============================================ */
.tech-section {
    position: relative;
    z-index: 2;
    padding: 120px 0;
    background: var(--bg-secondary);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.tech-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem 1.5rem;
    text-align: center;
    transition: var(--transition-slow);
    backdrop-filter: blur(10px);
}

.tech-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.tech-icon-wrap {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 212, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.1);
    color: var(--accent-cyan);
    transition: var(--transition-fast);
}

.tech-card:hover .tech-icon-wrap {
    background: rgba(0, 212, 255, 0.08);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.15);
    color: #fff;
}

.tech-card h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
}

.tech-card p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.7;
}

/* ============================================
   联系我们
   ============================================ */
.contact-section {
    position: relative;
    z-index: 2;
    padding: 120px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition-fast);
}

.contact-item:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateX(5px);
}

.contact-icon {
    width: 45px;
    height: 45px;
    min-width: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(0, 212, 255, 0.06);
    color: var(--accent-cyan);
}

.contact-item h4 {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.contact-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 1.2rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

.submit-btn {
    width: 100%;
    justify-content: center;
}

/* ============================================
   页脚
   ============================================ */
.footer {
    position: relative;
    z-index: 2;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 4rem 2rem 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-main {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    margin: 1rem 0 0.5rem;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-col h4 {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-col a {
    display: block;
    color: var(--text-secondary);
    font-size: 0.85rem;
    padding: 0.3rem 0;
    transition: var(--transition-fast);
}

.footer-col a:hover {
    color: var(--accent-cyan);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1200px) {
    .hero-robot {
        right: 0;
    }
    .robot-3d-container {
        width: 300px;
        height: 400px;
    }
}

@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 140px;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-subtitle {
        margin: 0 auto 2.5rem;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-robot {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        margin-top: 3rem;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .ai-showcase {
        grid-template-columns: 1fr;
    }

    .ai-brain-animation {
        width: 250px;
        height: 250px;
    }

    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(10, 10, 15, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        z-index: 5;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .tech-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer-main {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .tech-grid {
        grid-template-columns: 1fr;
    }

    .stats-container {
        grid-template-columns: 1fr 1fr;
    }

    .hero-title .title-line {
        font-size: 2rem;
    }

    .robot-3d-container {
        width: 250px;
        height: 350px;
    }
}