/* ==================== 全局样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0088ff;
    --primary-dark: #0066cc;
    --primary-light: #00aaff;
    --secondary-color: #ff8c42;
    --secondary-light: #ffb366;
    --text-color: #2c3e50;
    --text-light: #5a6c7d;
    --bg-light: #f8fafc;
    --bg-dark: #1e293b;
    --white: #ffffff;
    --shadow: 0 4px 25px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 40px rgba(0, 0, 0, 0.12);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --gradient: linear-gradient(135deg, #0088ff 0%, #00d4ff 100%);
    --gradient-secondary: linear-gradient(135deg, #ff8c42 0%, #ffbb73 100%);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* ==================== 滚动出现动画 ==================== */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-scale {
    opacity: 0;
    transform: scale(0.8);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-scale.visible {
    opacity: 1;
    transform: scale(1);
}

/* ==================== 按钮样式 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 30px;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 5px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    gap: 8px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: var(--transition);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 136, 255, 0.4);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    position: relative;
    overflow: hidden;
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    transition: var(--transition);
    z-index: -1;
}

.btn-secondary:hover::before {
    left: 0;
}

.btn-secondary:hover {
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 136, 255, 0.3);
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* ==================== 章节样式 ==================== */
section {
    padding: 100px 0;
    scroll-margin-top: 100px;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

.section-subtitle {
    display: inline-block;
    padding: 8px 25px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 25px;
    margin-bottom: 20px;
    letter-spacing: 2px;
    text-transform: uppercase;
    box-shadow: 0 4px 15px rgba(0, 136, 255, 0.3);
}

.section-title-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--text-color);
    position: relative;
    display: inline-block;
    letter-spacing: 1px;
}

.section-divider {
    width: 80px;
    height: 4px;
    background: var(--gradient);
    margin: 0 auto;
    border-radius: 2px;
    position: relative;
}

.section-divider::before,
.section-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 4px;
    background: var(--gradient-secondary);
    border-radius: 2px;
}

.section-divider::before {
    left: -35px;
}

.section-divider::after {
    right: -35px;
}

/* ==================== 头部导航 ==================== */
.header-top {
    background: var(--bg-dark);
    color: var(--white);
    padding: 10px 0;
    font-size: 0.9rem;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-info span {
    margin-right: 20px;
}

.top-info i {
    margin-right: 5px;
}

.top-social a {
    margin-left: 15px;
    color: var(--white);
    transition: var(--transition);
}

.top-social a:hover {
    color: var(--primary-light);
}

.navbar {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

/* 当header-top隐藏时，navbar的定位 */
@media (max-width: 768px) {
    .navbar {
        top: 0;
    }
}

.navbar.scrolled {
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-icon {
    font-size: 2rem;
}

.nav-menu {
    display: flex;
    gap: 5px;
}

.nav-menu li a {
    padding: 10px 20px;
    border-radius: 5px;
    transition: var(--transition);
    font-weight: 500;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    background: var(--primary-color);
    color: var(--white);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: var(--transition);
}

/* ==================== 首页横幅 ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0;
    overflow: hidden;
}

.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
}

.slide.active {
    opacity: 1;
}

.slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0a1628 0%, #1a2a4a 50%, #0d2137 100%);
    animation: gradientShift 20s ease infinite;
    background-size: 200% 200%;
}

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

/* 科技感网格背景 */
.tech-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 136, 255, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 136, 255, 0.08) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 30s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

/* 电路板图案 */
.circuit-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.15;
    pointer-events: none;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.8) 1px, transparent 1px),
        radial-gradient(circle at 40% 50%, rgba(0, 136, 255, 0.8) 1px, transparent 1px),
        radial-gradient(circle at 60% 70%, rgba(0, 212, 255, 0.8) 1px, transparent 1px),
        radial-gradient(circle at 80% 40%, rgba(0, 136, 255, 0.8) 1px, transparent 1px),
        radial-gradient(circle at 30% 80%, rgba(0, 212, 255, 0.8) 1px, transparent 1px);
    background-size: 120px 120px;
}

/* 粒子效果 */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.particles::before,
.particles::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(0, 212, 255, 0.6);
    border-radius: 50%;
    box-shadow: 0 0 10px 2px rgba(0, 212, 255, 0.4);
    animation: particleFloat 15s linear infinite;
}

.particles::before {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.particles::after {
    top: 70%;
    right: 15%;
    animation-delay: 7.5s;
}

@keyframes particleFloat {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.6;
    }
    25% {
        transform: translate(100px, -80px) scale(1.5);
        opacity: 0.9;
    }
    50% {
        transform: translate(200px, 50px) scale(1);
        opacity: 0.7;
    }
    75% {
        transform: translate(80px, 100px) scale(1.3);
        opacity: 0.8;
    }
}

/* 发光球体 */
.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    animation: orbPulse 8s ease-in-out infinite;
}

.glow-orb.glow-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 136, 255, 0.3) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.glow-orb.glow-2 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.25) 0%, transparent 70%);
    bottom: -50px;
    left: 10%;
    animation-delay: 4s;
}

.glow-orb.glow-3 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255, 140, 66, 0.2) 0%, transparent 70%);
    top: 40%;
    left: 50%;
    animation-delay: 6s;
}

@keyframes orbPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.9;
    }
}

.bg-shape {
    position: absolute;
    background: rgba(0, 136, 255, 0.1);
    border-radius: 50%;
    animation: float 25s ease-in-out infinite;
    backdrop-filter: blur(10px);
}

.bg-shape.shape-1 {
    width: 450px;
    height: 450px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.bg-shape.shape-2 {
    width: 350px;
    height: 350px;
    bottom: 20%;
    right: 15%;
    animation-delay: 8s;
}

.bg-shape.shape-3 {
    width: 250px;
    height: 250px;
    top: 60%;
    left: 30%;
    animation-delay: 16s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(50px, -50px) rotate(90deg);
    }
    50% {
        transform: translate(0, 50px) rotate(180deg);
    }
    75% {
        transform: translate(-50px, 0) rotate(270deg);
    }
}

/* PLC控制动画元素 */
.plc-icons {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.plc-icon {
    position: absolute;
    font-size: 2.5rem;
    color: rgba(0, 212, 255, 0.35);
    animation: floatIcon 12s ease-in-out infinite;
    filter: drop-shadow(0 0 15px rgba(0, 212, 255, 0.4));
}

.plc-icon.icon-1 { top: 12%; left: 5%; animation-delay: 0s; }
.plc-icon.icon-2 { top: 20%; right: 8%; animation-delay: 1.5s; }
.plc-icon.icon-3 { bottom: 35%; left: 8%; animation-delay: 3s; }
.plc-icon.icon-4 { bottom: 25%; right: 12%; animation-delay: 4.5s; }
.plc-icon.icon-5 { top: 50%; left: 3%; animation-delay: 6s; }
.plc-icon.icon-6 { top: 45%; right: 5%; animation-delay: 7.5s; }
.plc-icon.icon-7 { top: 65%; left: 20%; animation-delay: 9s; font-size: 2rem; }
.plc-icon.icon-8 { top: 8%; left: 45%; animation-delay: 10.5s; font-size: 2rem; }

@keyframes floatIcon {
    0%, 100% {
        transform: translateY(0) rotate(0deg) scale(1);
        opacity: 0.35;
    }
    25% {
        transform: translateY(-25px) rotate(10deg) scale(1.1);
        opacity: 0.55;
    }
    50% {
        transform: translateY(-10px) rotate(-5deg) scale(1.05);
        opacity: 0.45;
    }
    75% {
        transform: translateY(-35px) rotate(5deg) scale(1.15);
        opacity: 0.6;
    }
}

/* 数据流动画线条 */
.data-lines {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.data-line {
    position: absolute;
    height: 3px;
    background: linear-gradient(90deg, transparent, #00d4ff, #0088ff, transparent);
    animation: dataFlow 4s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
    border-radius: 2px;
}

.data-line.line-1 {
    top: 15%;
    left: 0;
    width: 35%;
    animation-delay: 0s;
}

.data-line.line-2 {
    top: 35%;
    right: 0;
    width: 30%;
    animation-delay: 1s;
}

.data-line.line-3 {
    top: 55%;
    left: 5%;
    width: 25%;
    animation-delay: 2s;
}

.data-line.line-4 {
    bottom: 25%;
    right: 10%;
    width: 20%;
    animation-delay: 3s;
}

@keyframes dataFlow {
    0%, 100% {
        opacity: 0;
        transform: translateX(-100%);
    }
    10% {
        opacity: 1;
        transform: translateX(-80%);
    }
    90% {
        opacity: 1;
        transform: translateX(80%);
    }
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
    padding: 0 20px;
    width: 100%;
    max-width: 1100px;
}

/* 内容徽章 */
.content-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 30px;
    background: rgba(0, 212, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(0, 212, 255, 0.4);
    border-radius: 30px;
    color: #00d4ff;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 30px;
    opacity: 0;
    animation: slideUp 0.8s ease forwards;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
}

.content-badge i {
    font-size: 1.2rem;
}

.slide-title {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 20px;
    opacity: 0;
    animation: slideUp 0.8s ease 0.15s forwards;
    text-shadow: 0 0 40px rgba(0, 136, 255, 0.6);
    letter-spacing: 2px;
}

.title-line {
    display: block;
    margin-bottom: 15px;
    color: #ffffff;
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: 5px;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.title-highlight {
    display: block;
    background: linear-gradient(135deg, #00d4ff 0%, #0088ff 30%, #00ff88 60%, #00d4ff 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
    letter-spacing: 3px;
    text-shadow: none;
    filter: drop-shadow(0 0 25px rgba(0, 212, 255, 0.6));
    animation: gradientText 4s ease infinite;
}

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

.slide-description {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 40px;
    opacity: 0;
    animation: slideUp 0.8s ease 0.3s forwards;
    letter-spacing: 1px;
    line-height: 1.8;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 2px 15px rgba(0, 0, 0, 0.6);
}

/* 额外信息 */
.extra-info {
    margin: 20px 0 40px;
    opacity: 0;
    animation: slideUp 0.8s ease 0.4s forwards;
}

.extra-info p {
    font-size: 1.3rem;
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 30px;
    background: rgba(0, 212, 255, 0.15);
    border-radius: 30px;
    border: 2px solid rgba(0, 212, 255, 0.4);
    font-weight: 500;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.extra-info i {
    color: #00d4ff;
    font-size: 1.3rem;
}

/* Hero特性徽章 */
.hero-features {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin-bottom: 40px;
    opacity: 0;
    animation: slideUp 0.8s ease 0.45s forwards;
}

.feature-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 25px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    color: #ffffff;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
}

.feature-badge:hover {
    background: rgba(0, 212, 255, 0.2);
    border-color: #00d4ff;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.4);
}

.feature-badge i {
    color: #00d4ff;
    font-size: 1.2rem;
}

/* Hero CTA按钮 */
.hero-cta {
    display: flex;
    justify-content: center;
    gap: 20px;
    opacity: 0;
    animation: slideUp 0.8s ease 0.7s forwards;
    flex-wrap: wrap;
}

.hero-cta .btn {
    font-size: 1.1rem;
    padding: 16px 40px;
    font-weight: 600;
}

/* 产品亮点展示 */
.product-highlights {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin: 50px 0;
    opacity: 0;
    animation: slideUp 0.8s ease 0.45s forwards;
}

.highlight-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 30px 20px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    transition: var(--transition);
}

.highlight-item:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(0, 212, 255, 0.5);
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.2);
}

.highlight-item i {
    font-size: 2.5rem;
    color: #00d4ff;
    margin-bottom: 18px;
    transition: var(--transition);
}

.highlight-item:hover i {
    transform: scale(1.15);
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.6);
}

.highlight-text {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.highlight-name {
    font-size: 1.15rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.highlight-desc {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.5;
}

/* Hero特性徽章 */
.hero-features {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin-bottom: 40px;
    opacity: 0;
    animation: slideUp 0.8s ease 0.6s forwards;
}

.hero-stats {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    padding: 35px 0;
    z-index: 3;
    backdrop-filter: blur(10px);
    box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.1);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item {
    position: relative;
    padding: 10px;
}

.stat-item::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 70px;
    background: linear-gradient(180deg, transparent, #e0e0e0, transparent);
}

.stat-item:last-child::after {
    display: none;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    filter: drop-shadow(0 2px 10px rgba(0, 136, 255, 0.3));
    animation: pulse 2s ease-in-out infinite;
    display: inline-block;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}

.stat-unit {
    font-size: 1.8rem;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 2px 5px rgba(255, 140, 66, 0.3));
}

.stat-label {
    margin-top: 8px;
    color: var(--text-color);
    font-size: 1.05rem;
    font-weight: 500;
    letter-spacing: 1px;
}

/* ==================== 关于我们 ==================== */
.about {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 70px;
    align-items: center;
}

.about-left,
.about-right {
    width: 100%;
}

.about-image {
    position: relative;
}

.image-main {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.image-main::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 136, 255, 0.1) 0%, rgba(0, 212, 255, 0.1) 100%);
    pointer-events: none;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    color: var(--primary-color);
}

.experience-badge {
    position: absolute;
    bottom: -35px;
    right: -35px;
    width: 160px;
    height: 160px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 40px rgba(0, 136, 255, 0.4);
    z-index: 2;
    border: 4px solid rgba(255, 255, 255, 0.3);
}

.badge-inner {
    text-align: center;
    color: var(--white);
}

.badge-number {
    font-size: 2.2rem;
    font-weight: 800;
    display: block;
}

.badge-text {
    font-size: 0.9rem;
    line-height: 1.2;
}

.about-title {
    font-size: 2.2rem;
    margin-bottom: 25px;
    color: var(--primary-color);
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.about-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--gradient);
    border-radius: 2px;
}

.about-intro {
    font-size: 1.15rem;
    color: var(--text-light);
    margin-bottom: 25px;
    line-height: 1.9;
}

.about-text {
    color: var(--text-color);
    margin-bottom: 35px;
    line-height: 1.9;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-bottom: 30px;
}

/* ==================== 关于我们子板块 ==================== */
.culture-section,
.advantages-section,
.honors-section {
    margin-top: 80px;
    padding-top: 80px;
    border-top: 2px solid rgba(0, 0, 0, 0.05);
    position: relative;
}

.culture-section::before,
.advantages-section::before,
.honors-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--gradient);
    border-radius: 2px;
}

.culture-section .section-header,
.advantages-section .section-header,
.honors-section .section-header {
    animation: fadeInUp 0.8s ease forwards;
}

.culture-card:hover .culture-icon {
    transform: scale(1.2) rotate(15deg);
    box-shadow: 0 10px 40px rgba(0, 136, 255, 0.4);
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.2) rotate(15deg);
    box-shadow: 0 10px 40px rgba(255, 140, 66, 0.4);
}

.honor-card:hover {
    transform: translateY(-15px) scale(1.02);
}

.honor-card:hover .honor-badge {
    animation: spin 1s linear;
}

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

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

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

/* 添加光晕效果 */
.culture-card::after,
.advantage-card::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    border-radius: 16px;
    background: radial-gradient(circle, rgba(0, 136, 255, 0.15) 0%, transparent 70%);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.culture-card:hover::after,
.advantage-card:hover::after {
    opacity: 1;
}

/* ==================== 企业文化 ==================== */
.culture {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
}

.culture-card {
    background: var(--white);
    padding: 45px 35px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.culture-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 136, 255, 0.05) 0%, rgba(0, 212, 255, 0.05) 100%);
    opacity: 0;
    transition: var(--transition);
}

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

.culture-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(0, 136, 255, 0.15);
}

.culture-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 30px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--white);
    transition: var(--transition);
    position: relative;
    z-index: 1;
}

.culture-icon::after {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 3px solid transparent;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light)) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: var(--transition);
}

.culture-card:hover .culture-icon::after {
    opacity: 1;
}

.culture-card:hover .culture-icon {
    transform: scale(1.15) rotate(15deg);
}

.culture-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.culture-desc {
    color: var(--text-light);
    line-height: 1.8;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--text-light);
}

.feature-icon {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.feature-info h4 {
    font-size: 1rem;
    margin-bottom: 3px;
}

.feature-info p {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ==================== 产品中心 ==================== */
.products {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.products-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 35px;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--primary-color);
    transition: var(--transition);
    z-index: -1;
}

.filter-btn:hover::before,
.filter-btn.active::before {
    width: 100%;
}

.filter-btn:hover,
.filter-btn.active {
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 136, 255, 0.3);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.product-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: var(--transition);
}

.product-card:hover::before {
    transform: scaleX(1);
}

.product-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.product-image {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.product-image img {
    width: 100%;
    height: 280px;
    object-fit: contain;
    display: block;
    padding: 20px;
    transition: var(--transition);
}

.product-card:hover .product-image img {
    transform: scale(1.08) rotate(2deg);
}

.product-image .image-placeholder {
    height: 280px;
    background: linear-gradient(135deg, #f0f4ff 0%, #e0e7ff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--primary-color);
}

.product-info {
    padding: 20px 15px;
    text-align: center;
}

.product-title {
    font-size: 1.1rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.product-model {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 10px;
    font-weight: 500;
}

.product-desc {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 10px;
}

.product-tag {
    display: inline-block;
    padding: 3px 12px;
    background: var(--secondary-color);
    color: var(--white);
    font-size: 0.8rem;
    border-radius: 12px;
}

.products-more {
    text-align: center;
}

/* ==================== 解决方案 ==================== */
.solutions {
    position: relative;
    background: var(--bg-dark);
    color: var(--white);
}

.solutions-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect fill="%231a1a2e" width="100" height="100"/><circle fill="%23ffffff05" cx="50" cy="50" r="40"/></svg>');
}

.solutions .section-subtitle {
    background: var(--secondary-color);
}

.solutions .section-title {
    color: var(--white);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    position: relative;
}

.solution-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px 30px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.solution-item:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-light);
    transform: translateY(-5px);
}

.solution-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 25px;
}

.solution-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.solution-desc {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
    line-height: 1.8;
}

.solution-features {
    margin-bottom: 25px;
}

.solution-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 10px;
}

.solution-features i {
    color: var(--primary-light);
}

.solution-link {
    color: var(--primary-light);
    font-weight: 500;
    transition: var(--transition);
}

.solution-link:hover {
    color: var(--white);
    padding-left: 5px;
}

/* ==================== 下载中心 ==================== */
.downloads {
    background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.downloads::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 20% 50%, rgba(0, 136, 255, 0.05) 0%, transparent 50%),
                      radial-gradient(circle at 80% 50%, rgba(0, 212, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.downloads-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    position: relative;
    z-index: 1;
}

.download-card {
    background: var(--white);
    border-radius: 16px;
    padding: 35px 25px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.download-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: var(--transition);
}

.download-card:hover::after {
    transform: scaleX(1);
}

.download-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.download-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    color: var(--white);
    margin-bottom: 25px;
    transition: var(--transition);
    position: relative;
}

.download-icon::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    opacity: 0;
    transition: var(--transition);
}

.download-card:hover .download-icon::before {
    opacity: 1;
}

.download-card:hover .download-icon {
    transform: scale(1.15) rotate(-5deg);
}

.download-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.download-title {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--text-color);
    font-weight: 600;
    line-height: 1.4;
}

.download-size {
    color: var(--text-light);
    font-size: 0.9rem;
}

.download-action {
    margin-top: 20px;
    width: 50px;
    height: 50px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.download-card:hover .download-action {
    background: var(--primary-color);
    color: var(--white);
}

/* ==================== 核心优势 ==================== */
.advantages {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
}

.advantage-card {
    background: var(--white);
    padding: 45px 35px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.advantage-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-secondary);
    transform: scaleX(0);
    transition: var(--transition);
}

.advantage-card:hover::after {
    transform: scaleX(1);
}

.advantage-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(255, 140, 66, 0.15);
}

.advantage-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 30px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--white);
    transition: var(--transition);
    position: relative;
}

.advantage-icon::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border: 2px dashed var(--secondary-color);
    border-radius: 50%;
    opacity: 0;
    transition: var(--transition);
}

.advantage-card:hover .advantage-icon::before {
    opacity: 1;
    animation: rotateBorder 10s linear infinite;
}

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

.advantage-card:hover .advantage-icon {
    transform: scale(1.15);
}

.advantage-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.advantage-desc {
    color: var(--text-light);
    line-height: 1.8;
}

/* ==================== 资质荣誉 ==================== */
.honors {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.honors-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.honor-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.honor-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(0, 136, 255, 0.15);
}

.honor-image {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.honor-image img {
    width: 100%;
    height: 320px;
    object-fit: contain;
    display: block;
    padding: 20px;
    transition: var(--transition);
}

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

.honor-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 55px;
    height: 55px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.4rem;
    box-shadow: 0 4px 15px rgba(255, 140, 66, 0.4);
    z-index: 2;
}

.honor-card:hover .honor-badge {
    animation: bounce 0.6s ease;
}

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

.honor-content {
    padding: 25px 20px;
    text-align: center;
}

.honor-title {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--primary-color);
    font-weight: 600;
}

.honor-desc {
    color: var(--text-light);
    line-height: 1.8;
}

/* ==================== 成功案例 ==================== */
.cases {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
}

.case-item {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.case-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 136, 255, 0.1) 0%, rgba(0, 212, 255, 0.1) 100%);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.case-item:hover::after {
    opacity: 1;
}

.case-item:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(0, 136, 255, 0.15);
}

.case-image {
    position: relative;
    overflow: hidden;
}

.case-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: var(--transition);
    z-index: 1;
}

.case-item:hover .case-image::before {
    left: 100%;
}

.case-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
    transition: var(--transition);
}

.case-item:hover .case-image img {
    transform: scale(1.1);
}

.case-image .image-placeholder {
    height: 250px;
    background: linear-gradient(135deg, #f0f4ff 0%, #e0e7ff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    color: var(--primary-color);
}

.case-content {
    padding: 20px;
    text-align: center;
}

.case-title {
    font-size: 1.15rem;
    margin-bottom: 10px;
    line-height: 1.4;
    font-weight: 600;
}

.case-desc {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.case-category {
    display: inline-block;
    padding: 4px 15px;
    background: var(--bg-light);
    color: var(--primary-color);
    font-size: 0.8rem;
    border-radius: 15px;
}

/* ==================== 新闻动态 ==================== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-item {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.news-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.news-image {
    position: relative;
}

.news-image .image-placeholder {
    height: 200px;
    background: linear-gradient(135deg, #f0f4ff 0%, #e0e7ff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--primary-color);
}

.news-date {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--primary-color);
    color: var(--white);
    padding: 10px 15px;
    border-radius: 5px;
    text-align: center;
}

.news-date .day {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
}

.news-date .month {
    font-size: 0.8rem;
}

.news-content {
    padding: 25px;
}

.news-title {
    font-size: 1.1rem;
    margin-bottom: 15px;
    line-height: 1.6;
}

.news-desc {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.news-link {
    color: var(--primary-color);
    font-weight: 500;
    transition: var(--transition);
}

.news-link:hover {
    color: var(--primary-dark);
    padding-left: 5px;
}

/* ==================== 联系我们 ==================== */
.contact {
    position: relative;
    background: linear-gradient(135deg, #0a1628 0%, #1a2a4a 50%, #0d2137 100%);
    color: var(--white);
    animation: gradientShift 20s ease infinite;
    background-size: 200% 200%;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 136, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 136, 255, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: gridMove 30s linear infinite;
    pointer-events: none;
}

.contact-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect fill="url(%23gradient)" width="100" height="100"/><defs><linearGradient id="gradient" x1="0%25" y1="0%25" x2="100%25" y2="100%25"><stop offset="0%25" style="stop-color:%23667eea"/><stop offset="100%25" style="stop-color:%23764ba2"/></linearGradient></defs></svg>');
    opacity: 0.1;
}

.contact .section-subtitle {
    background: rgba(0, 136, 255, 0.3);
    backdrop-filter: blur(10px);
}

.contact .section-title {
    color: var(--white);
    text-shadow: 0 0 30px rgba(0, 136, 255, 0.5);
}

.contact .section-divider {
    background: linear-gradient(90deg, #00d4ff, #0088ff, #00ff88);
}

.contact .section-divider::before,
.contact .section-divider::after {
    background: linear-gradient(90deg, #ff8c42, #ffb366);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    position: relative;
}

.contact-title {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.contact-subtitle {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 30px;
}

.contact-info {
    flex: 1;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
}

.contact-form-wrapper {
    flex: 1;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow-hover);
}

.contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--primary-color);
}

/* ==================== 联系卡片 ==================== */
.contact-card-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 30px;
    position: relative;
    z-index: 1;
}

.contact-card {
    background: rgba(255, 255, 255, 0.95);
    padding: 35px;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
    border-left: 5px solid var(--primary-color);
    backdrop-filter: blur(10px);
}

.contact-card:hover {
    transform: translateX(15px);
    box-shadow: 0 15px 40px rgba(0, 136, 255, 0.25);
}

.contact-card.highlight {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    border-left: none;
}

.contact-card.highlight h3,
.contact-card.highlight p {
    color: var(--white);
}

.contact-card.highlight .card-icon {
    background: var(--white);
    color: var(--primary-color);
}

.contact-card.highlight .card-note {
    color: rgba(255, 255, 255, 0.9);
}

.card-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 25px;
    transition: var(--transition);
}

.contact-card:hover .card-icon {
    transform: scale(1.15) rotate(-5deg);
}

.contact-card h3 {
    font-size: 1.5rem;
    margin-bottom: 18px;
    color: var(--primary-color);
    font-weight: 700;
}

.contact-card p {
    color: var(--text-color);
    margin-bottom: 10px;
    font-size: 1.05rem;
}

.highlight-text {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.card-divider {
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), transparent);
    margin: 20px 0;
    opacity: 0.3;
}

.contact-card.highlight .card-divider {
    background: linear-gradient(90deg, var(--white), transparent);
}

.card-note {
    font-size: 0.9rem;
    color: var(--text-light);
    font-style: italic;
}

.contact-cta {
    display: flex;
    gap: 15px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 5px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-textarea {
    resize: vertical;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
}

.info-items {
    margin-bottom: 30px;
}

.info-item {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
}

.info-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.info-text h4 {
    margin-bottom: 5px;
}

.info-text p {
    color: rgba(255, 255, 255, 0.8);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--white);
    color: var(--primary-color);
}

/* ==================== 页脚 ==================== */
.footer-top {
    background: linear-gradient(135deg, #0a1628 0%, #1a2a4a 100%);
    color: var(--white);
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}

.footer-top::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 20% 50%, rgba(0, 136, 255, 0.1) 0%, transparent 50%),
                      radial-gradient(circle at 80% 80%, rgba(0, 212, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.footer-logo .logo-icon {
    font-size: 2rem;
}

.footer-logo .logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.footer-about-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--white);
    font-weight: 600;
    position: relative;
    padding-bottom: 15px;
}

.footer-about-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--primary-color);
}

.footer-desc {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 12px;
}

.footer-desc:last-child {
    margin-bottom: 0;
}

.footer-title {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.footer-nav li {
    margin-bottom: 12px;
}

.footer-nav a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-nav a:hover {
    color: var(--white);
    padding-left: 5px;
}

.footer-info li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 15px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-info i {
    margin-top: 3px;
}

.footer-social {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary-color);
}

.footer-bottom {
    background: #111;
    color: rgba(255, 255, 255, 0.6);
    padding: 20px 0;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom-content a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-bottom-content a:hover {
    color: var(--white);
}

.icp {
    margin-top: 10px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

.icp a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.icp a:hover {
    color: var(--primary-light);
    text-decoration: underline;
}

/* ==================== 返回顶部 ==================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    z-index: 999;
    pointer-events: none;
}

.back-to-top.show {
    display: flex;
    pointer-events: auto;
}

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

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .slide-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .stat-item:nth-child(2)::after {
        display: none;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-image {
        max-width: 500px;
        margin: 0 auto;
    }

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

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

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

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

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

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

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

@media (max-width: 768px) {
    .header-top {
        display: none;
    }

    body {
        width: 100%;
        overflow-x: hidden;
    }

    .container {
        padding: 0 15px;
        max-width: 100%;
        width: 100%;
    }

    .logo img {
        width: 100% !important;
        max-width: 220px !important;
        height: auto !important;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        padding: 30px;
        transition: var(--transition);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-stats .container {
        padding: 0 10px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .stat-item::after {
        display: none;
    }

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

    .section-title {
        font-size: 1.8rem;
    }

    section {
        padding: 40px 0;
    }

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

    .products-grid,
    .news-grid,
    .solutions-grid,
    .advantages-grid,
    .cases-grid,
    .honors-grid,
    .downloads-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 25px;
    }

    .contact-card-wrapper {
        margin-top: 40px;
    }

    .contact-cta {
        flex-direction: column;
    }

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

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

    .footer-bottom-content {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .back-to-top {
        display: none !important;
    }
}

@media (max-width: 480px) {
    .slide-title {
        font-size: 1.8rem;
    }

    .slide-description {
        font-size: 1rem;
    }

    .slide-buttons {
        flex-direction: column;
    }

    .slide-buttons .btn {
        width: 100%;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .products-filter {
        gap: 10px;
    }

    .filter-btn {
        padding: 8px 20px;
        font-size: 0.9rem;
    }

    .container {
        padding: 0 10px;
        max-width: 100%;
        width: 100%;
    }

    .logo img {
        width: 100% !important;
        max-width: 200px !important;
        height: auto !important;
    }

    * {
        max-width: 100%;
    }
}