:root {
    --primary-900: #0f172a;
    --primary-800: #1e293b;
    --primary-700: #334155;
    --primary-600: #475569;
    --primary-500: #64748b;
    --primary-400: #94a3b8;
    --primary-300: #cbd5e1;
    --primary-200: #e2e8f0;
    --primary-100: #f1f5f9;
    --primary-50: #f8fafc;

    --accent-600: #2563eb;
    --accent-500: #3b82f6;
    --accent-400: #60a5fa;
    --accent-300: #93c5fd;
    --cyan-500: #0ea5e9;
    --cyan-400: #22d3ee;
    --cyan-300: #67e8f9;

    --purple-500: #8b5cf6;
    --purple-400: #a78bfa;
    --green-500: #10b981;
    --green-400: #34d399;

    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #0f172a 100%);
    --gradient-accent: linear-gradient(135deg, #3b82f6 0%, #0ea5e9 100%);
    --gradient-text: linear-gradient(135deg, #60a5fa 0%, #22d3ee 100%);
    --gradient-card: linear-gradient(145deg, rgba(30, 58, 138, 0.3) 0%, rgba(15, 23, 42, 0.6) 100%);

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 0 30px rgba(59, 130, 246, 0.3);
    --shadow-glow-cyan: 0 0 30px rgba(14, 165, 233, 0.3);

    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    --container-width: 1200px;
    --header-height: 80px;

    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background-color: var(--primary-900);
    color: var(--primary-200);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

ul {
    list-style: none;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
    background: var(--gradient-accent);
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-sm:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.5);
}

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

.btn-primary {
    background: var(--gradient-accent);
    color: white;
    box-shadow: var(--shadow-glow);
    border: 1px solid transparent;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.5);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-3px);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    transition: all var(--transition-base);
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: var(--shadow-lg);
    height: 70px;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 42px;
    height: 42px;
    color: var(--accent-400);
    flex-shrink: 0;
}

.logo-img {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    object-fit: contain;
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-main {
    font-size: 1.25rem;
    font-weight: 800;
    color: white;
    letter-spacing: -0.02em;
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--primary-400);
    font-weight: 500;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--primary-300);
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: white;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: width var(--transition-base);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: white;
    transition: all var(--transition-fast);
    transform-origin: center;
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Hero 首屏 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: var(--header-height);
    background: var(--gradient-hero);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 8s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-600) 0%, transparent 70%);
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--cyan-500) 0%, transparent 70%);
    bottom: -150px;
    left: -100px;
    animation-delay: -4s;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(circle at center, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(circle at center, black 0%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
    padding-top: 2rem;
    padding-bottom: 6rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.25);
    border-radius: 9999px;
    color: var(--accent-300);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: clamp(2.5rem, 5.5vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    color: white;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--primary-400);
    max-width: 600px;
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

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

.hero-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.stat-card {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    backdrop-filter: blur(20px);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
    border-color: rgba(59, 130, 246, 0.2);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-accent);
    opacity: 0.7;
}

.stat-number {
    display: inline;
    font-size: 2.75rem;
    font-weight: 900;
    color: white;
    line-height: 1;
}

.stat-suffix {
    display: inline;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-400);
    margin-left: 0.25rem;
}

.stat-label {
    margin-top: 0.75rem;
    font-size: 0.95rem;
    color: var(--primary-400);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-500);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    animation: bounce 2s infinite;
    z-index: 2;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
}

/* 通用 Section */
.section {
    position: relative;
    padding: 7rem 0;
    overflow: hidden;
}

.section-dark {
    background: linear-gradient(180deg, var(--primary-900) 0%, rgba(30, 58, 138, 0.15) 50%, var(--primary-900) 100%);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-tag {
    display: inline-block;
    padding: 0.375rem 1rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 9999px;
    color: var(--accent-400);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(1.875rem, 4vw, 2.75rem);
    font-weight: 800;
    color: white;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--primary-400);
    line-height: 1.7;
}

/* 关于我们 */
.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.about-card {
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.about-card:hover {
    transform: translateY(-8px);
    border-color: rgba(59, 130, 246, 0.2);
    box-shadow: var(--shadow-lg);
    background: rgba(30, 41, 59, 0.8);
}

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

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

.about-icon {
    width: 56px;
    height: 56px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-400);
    margin-bottom: 1.5rem;
}

.about-icon svg {
    width: 28px;
    height: 28px;
}

.about-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.75rem;
}

.about-card p {
    color: var(--primary-400);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* 业务服务 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.service-card {
    background: rgba(30, 41, 59, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 2.25rem;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-6px);
    border-color: rgba(59, 130, 246, 0.2);
    background: rgba(30, 41, 59, 0.7);
    box-shadow: var(--shadow-lg);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(30%, -30%);
}

.service-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.service-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.service-icon svg {
    width: 26px;
    height: 26px;
    color: white;
}

.icon-blue { background: rgba(37, 99, 235, 0.2); color: var(--accent-400); }
.icon-cyan { background: rgba(14, 165, 233, 0.2); color: var(--cyan-400); }
.icon-purple { background: rgba(139, 92, 246, 0.2); color: var(--purple-400); }
.icon-green { background: rgba(16, 185, 129, 0.2); color: var(--green-400); }

.service-header h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: white;
}

.service-desc {
    color: var(--primary-400);
    margin-bottom: 1.25rem;
    line-height: 1.7;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.service-list li {
    color: var(--primary-300);
    font-size: 0.95rem;
    padding-left: 1.25rem;
    position: relative;
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6rem;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-500);
}

.service-link {
    color: var(--accent-400);
    font-weight: 600;
    transition: color var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.service-link:hover {
    color: var(--cyan-400);
    gap: 0.5rem;
}

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

.tech-card {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-base);
}

.tech-card:hover {
    transform: translateY(-8px);
    border-color: rgba(59, 130, 246, 0.2);
    box-shadow: var(--shadow-glow);
}

.tech-visual {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.tech-chart {
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
    height: 80px;
}

.tech-chart .bar {
    width: 14px;
    background: var(--gradient-accent);
    border-radius: 4px 4px 0 0;
    transition: height 0.5s ease;
}

.tech-card:hover .bar:nth-child(1) { height: 50% !important; }
.tech-card:hover .bar:nth-child(2) { height: 85% !important; }
.tech-card:hover .bar:nth-child(3) { height: 70% !important; }
.tech-card:hover .bar:nth-child(4) { height: 100% !important; }
.tech-card:hover .bar:nth-child(5) { height: 80% !important; }

.tech-cloud svg,
.tech-shield svg,
.tech-connect svg {
    width: 64px;
    height: 64px;
    color: var(--accent-400);
}

.tech-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.75rem;
}

.tech-card p {
    color: var(--primary-400);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* 服务区域 */
.areas-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.area-card {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-xl);
    padding: 3rem;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

.area-card:hover {
    transform: translateY(-6px);
    border-color: rgba(59, 130, 246, 0.2);
    box-shadow: var(--shadow-lg);
}

.area-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, transparent 60%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.area-number {
    font-size: 4rem;
    font-weight: 900;
    color: rgba(59, 130, 246, 0.15);
    line-height: 1;
    margin-bottom: 1rem;
}

.area-card h3 {
    font-size: 1.75rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1rem;
}

.area-card p {
    color: var(--primary-400);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.area-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.area-tags span {
    padding: 0.4rem 0.875rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 9999px;
    font-size: 0.875rem;
    color: var(--accent-300);
}

.area-jiangsu:hover {
    border-color: rgba(59, 130, 246, 0.3);
}

.area-anhui:hover {
    border-color: rgba(14, 165, 233, 0.3);
}

/* 新闻中心 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.news-card {
    background: rgba(30, 41, 59, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    display: flex;
    gap: 1.25rem;
    transition: all var(--transition-base);
}

.news-card:hover {
    transform: translateY(-5px);
    border-color: rgba(59, 130, 246, 0.2);
    background: rgba(30, 41, 59, 0.7);
    box-shadow: var(--shadow-lg);
}

.news-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 70px;
    padding: 0.75rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.news-day {
    font-size: 1.75rem;
    font-weight: 800;
    color: white;
    line-height: 1;
}

.news-month {
    font-size: 0.75rem;
    color: var(--accent-400);
    margin-top: 0.25rem;
}

.news-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.news-content h3 a {
    color: white;
    transition: color var(--transition-fast);
}

.news-content h3 a:hover {
    color: var(--accent-400);
}

.news-content p {
    color: var(--primary-400);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* 联系我们 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.contact-card {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 2.25rem;
    text-align: center;
    transition: all var(--transition-base);
}

.contact-card:hover {
    transform: translateY(-6px);
    border-color: rgba(59, 130, 246, 0.2);
    box-shadow: var(--shadow-lg);
    background: rgba(30, 41, 59, 0.7);
}

.contact-icon {
    width: 64px;
    height: 64px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-400);
    margin: 0 auto 1.25rem;
}

.contact-icon svg {
    width: 28px;
    height: 28px;
}

.contact-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-400);
    margin-bottom: 0.75rem;
}

.contact-info {
    display: block;
    font-size: 1.35rem;
    font-weight: 800;
    color: white;
    margin-bottom: 0.5rem;
    transition: color var(--transition-fast);
}

.contact-info:hover {
    color: var(--accent-400);
}

.contact-note {
    color: var(--primary-500);
    font-size: 0.875rem;
}

/* 页脚 */
.footer {
    background: rgba(15, 23, 42, 0.95);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1.5rem;
}

.footer-desc {
    color: var(--primary-400);
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.25rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a,
.footer-contact a {
    color: var(--primary-400);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--accent-400);
}

.footer-contact p {
    color: var(--primary-400);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: var(--primary-500);
    font-size: 0.875rem;
}

.footer-bottom a:hover {
    color: var(--accent-400);
}

/* 滚动动画 */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* 关键帧动画 */
@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-20px) scale(1.05); }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* 响应式 */
@media (max-width: 1024px) {
    .nav-menu {
        gap: 1.5rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

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

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

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

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

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 3rem;
        gap: 2rem;
        transform: translateX(100%);
        transition: transform 0.3s ease;
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-link {
        font-size: 1.25rem;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
    }

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

    .about-grid,
    .services-grid,
    .tech-grid,
    .areas-grid,
    .news-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .service-card,
    .area-card,
    .news-card,
    .contact-card {
        padding: 1.75rem;
    }

    .section {
        padding: 4rem 0;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .logo-icon {
        width: 36px;
        height: 36px;
    }

    .logo-img {
        width: 36px;
        height: 36px;
    }

    .logo-main {
        font-size: 1rem;
    }

    .logo-sub {
        font-size: 0.65rem;
    }

    .hero-title {
        font-size: 1.875rem;
    }

    .btn-lg {
        padding: 0.875rem 1.5rem;
    }

    .stat-card {
        padding: 1.25rem;
    }

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

    .area-card {
        padding: 2rem;
    }

    .area-number {
        font-size: 3rem;
    }
}

/* 打印优化 */
@media print {
    .navbar,
    .scroll-indicator,
    .hero-bg {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: 2rem 0;
    }

    .section {
        padding: 2rem 0;
    }
}

/* 无障碍：减少动画 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* 移除任何可能存在的悬浮客服按钮 */
.customer-service-float,
.float-service,
.kefu,
.online-service,
.chat-widget,
.float-contact,
[class*="kefu"],
[id*="kefu"],
[class*="float"][class*="service"] {
    display: none !important;
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
}