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

:root {
    --primary: #0a1628;
    --accent: #00d4ff;
    --accent-dark: #0099cc;
    --gradient-start: #1a3a5c;
    --gradient-end: #0d2137;
    --text-dark: #ffffff;
    --text-light: #a0aec0;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --border: rgba(255, 255, 255, 0.08);
    --glow: 0 0 30px rgba(0, 212, 255, 0.15);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background: var(--primary);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all 0.3s ease;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

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

.logo-badge {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.16);
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.2);
}

.logo-badge--footer {
    width: 70px;
    height: 70px;
    padding: 5px;
}

.logo-mark {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: bold;
}

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

.logo-copy {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.logo-text .name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    letter-spacing: 1px;
}

.logo-copy .name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    letter-spacing: 0.5px;
    line-height: 1.1;
}

.logo-copy .en {
    font-size: 11px;
    color: var(--text-light);
    letter-spacing: 1.6px;
    line-height: 1.1;
}

.logo-text .en {
    font-size: 11px;
    color: var(--text-light);
    letter-spacing: 2px;
}

.nav-list {
    display: flex;
    gap: 18px;
    align-items: center;
}

.nav-list a {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s;
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--accent);
}

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

.nav-list a.nav-tool-link {
    color: #061525;
    background: linear-gradient(135deg, #66e3ff, #00d4ff);
    padding: 8px 12px;
    border-radius: 6px;
    box-shadow: 0 10px 24px rgba(0, 212, 255, 0.22);
}

.nav-list a.nav-cloud-link {
    color: #ffffff;
    background: linear-gradient(135deg, #1f6feb, #00a6ff);
    box-shadow: 0 10px 24px rgba(31, 111, 235, 0.24);
}

.nav-list a.nav-tool-link::after {
    display: none;
}

.nav-list a.nav-tool-link:hover {
    color: #061525;
    transform: translateY(-1px);
}

.nav-list a.nav-cloud-link:hover {
    color: #ffffff;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: all 0.3s;
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 212, 255, 0.08) 0%, transparent 40%);
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 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;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 120px 0 80px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 30px;
    font-size: 13px;
    color: var(--accent);
    margin-bottom: 30px;
    letter-spacing: 1px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #fff 0%, #e0e0e0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 50px;
    letter-spacing: 2px;
}

.hero-values {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.hero-value {
    padding: 14px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 16px;
    color: var(--text-dark);
    backdrop-filter: blur(10px);
    transition: all 0.3s;
}

.hero-value:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
    box-shadow: var(--glow);
}

/* Sections */
.section {
    padding: 120px 0;
}

.section-label {
    display: inline-block;
    font-size: 13px;
    color: var(--accent);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 20px;
}

.section-desc {
    font-size: 16px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Intro */
.intro {
    background: var(--primary);
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.intro-text {
    font-size: 16px;
    color: var(--text-light);
    line-height: 2;
    margin-bottom: 24px;
}

.intro-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-light);
}

.intro-visual {
    position: relative;
    height: 400px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 24px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.intro-visual::before {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: var(--accent);
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
}

/* Services */
.services {
    background: var(--gradient-end);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 60px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px 30px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-dark));
    transform: scaleX(0);
    transition: transform 0.4s;
}

.service-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-8px);
    box-shadow: var(--glow);
}

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

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.15), rgba(0, 212, 255, 0.05));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 24px;
}

.service-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.service-desc {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

/* Values */
.values {
    background: var(--primary);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.value-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 48px 36px;
    text-align: center;
    transition: all 0.4s;
}

.value-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--glow);
}

.value-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.value-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 16px;
}

.value-desc {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.9;
}

/* CTA */
.cta {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
    background: var(--accent);
    border-radius: 50%;
    filter: blur(150px);
    opacity: 0.15;
}

.cta-content {
    position: relative;
    z-index: 2;
}

.cta-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-desc {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 40px;
}

.btn {
    display: inline-block;
    padding: 16px 40px;
    background: var(--accent);
    color: var(--primary);
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background: #33ddff;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--accent);
    color: var(--accent);
}

.btn-outline:hover {
    background: var(--accent);
    color: var(--primary);
}

/* Footer */
.footer {
    background: var(--gradient-end);
    padding: 80px 0 40px;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 24px;
}

.footer-desc {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: all 0.3s;
}

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

.footer-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-light);
    transition: color 0.3s;
}

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

.footer-contact p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-light);
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    padding: 160px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: var(--accent);
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.1;
    top: -100px;
    right: -100px;
}

.page-header h1 {
    font-size: 44px;
    font-weight: 700;
    margin-bottom: 12px;
}

.page-header p {
    font-size: 16px;
    color: var(--text-light);
}

/* Content Section */
.content-section {
    padding: 100px 0;
    background: var(--primary);
}

.content-section h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 30px;
}

.content-section p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 2;
    margin-bottom: 20px;
}

/* Client List */
.client-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 50px;
}

.client-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    transition: all 0.3s;
}

.client-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-4px);
}

.client-card h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
}

.client-card p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
}

/* Case Grid */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 50px;
}

.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    transition: all 0.3s;
}

.case-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-4px);
}

.case-card h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
}

.case-card p {
    font-size: 13px;
    color: var(--text-light);
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin: 50px 0;
}

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 24px;
    text-align: center;
    transition: all 0.3s;
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--glow);
}

.contact-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.contact-card h3 {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 18px;
    font-weight: 600;
}

/* Form */
.form-wrapper {
    max-width: 560px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 48px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 10px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 15px;
    color: var(--text-dark);
    font-family: inherit;
    transition: all 0.3s;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-light);
}

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

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    padding: 16px;
    background: var(--accent);
    color: var(--primary);
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.submit-btn:hover {
    background: #33ddff;
    transform: translateY(-2px);
}

/* Service Detail */
.service-detail {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 48px;
    margin-bottom: 30px;
}

.service-detail h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}

.service-detail h3 .icon {
    margin-right: 12px;
}

/* Credential */
.credential-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.credential-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    text-align: center;
    border-left: 3px solid var(--accent);
}

.credential-item h4 {
    font-size: 15px;
    font-weight: 500;
}

/* Team */
.team-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.team-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px;
}

.team-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

/* Advantages */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 60px;
}

.advantage-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 36px 30px;
    text-align: center;
    transition: all 0.4s;
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--glow);
}

.advantage-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.advantage-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.advantage-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

/* Process */
.process-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
    margin-top: 60px;
}

.process-item {
    text-align: center;
    padding: 30px 15px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: all 0.3s;
}

.process-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--glow);
}

.process-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 16px;
}

.process-item h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.process-item p {
    font-size: 12px;
    color: var(--text-light);
    line-height: 1.6;
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 60px;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 36px;
    transition: all 0.3s;
}

.testimonial-card:hover {
    transform: translateY(-4px);
}

.testimonial-content {
    margin-bottom: 24px;
}

.testimonial-content p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.9;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 600;
}

.author-info h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.author-info p {
    font-size: 12px;
    color: var(--text-light);
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 50px auto 0;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    margin-bottom: 16px;
    overflow: hidden;
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    cursor: pointer;
    transition: background 0.3s;
}

.faq-question:hover {
    background: var(--bg-card-hover);
}

.faq-question span {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
}

.faq-question h3 {
    font-size: 16px;
    font-weight: 500;
}

.faq-answer {
    padding: 0 24px 24px 72px;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-answer p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

/* Solutions */
.solution-card {
    display: flex;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 48px;
    margin-bottom: 30px;
    transition: all 0.3s;
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--glow);
}

.solution-content {
    flex: 1;
}

.solution-content h3 {
    font-size: 26px;
    font-weight: 600;
    margin-bottom: 16px;
}

.solution-content p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.9;
    margin-bottom: 20px;
}

.solution-content h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
}

.solution-content ul {
    list-style: disc;
    padding-left: 24px;
}

.solution-content ul li {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.solution-image {
    font-size: 80px;
    margin-left: 48px;
    opacity: 0.8;
}

/* News */
.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.news-card {
    display: flex;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px;
    transition: all 0.3s;
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--glow);
}

.news-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-right: 24px;
    min-width: 60px;
}

.news-day {
    font-size: 36px;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
}

.news-month {
    font-size: 12px;
    color: var(--text-light);
}

.news-content {
    flex: 1;
}

.news-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 20px;
    font-size: 12px;
    color: var(--accent);
    margin-bottom: 12px;
}

.news-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

.news-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.news-link {
    font-size: 14px;
    color: var(--accent);
    transition: opacity 0.3s;
}

.news-link:hover {
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 1024px) {
    .services-grid,
    .client-grid,
    .case-grid,
    .advantages-grid,
    .testimonials-grid,
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .solution-card {
        flex-direction: column;
        text-align: center;
    }

    .solution-image {
        margin-left: 0;
        margin-top: 24px;
    }

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

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

    .intro-visual {
        height: 300px;
    }

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

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

@media (max-width: 768px) {
    .nav-list {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 22, 40, 0.98);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
    }

    .nav-list a.nav-tool-link {
        display: inline-block;
        width: fit-content;
    }

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

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-values {
        gap: 12px;
    }

    .hero-value {
        padding: 12px 24px;
        font-size: 14px;
    }

    .section-title {
        font-size: 30px;
    }

    .services-grid,
    .client-grid,
    .case-grid,
    .values-grid,
    .advantages-grid,
    .testimonials-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }

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

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

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

    .cta-title {
        font-size: 30px;
    }

    .page-header h1 {
        font-size: 32px;
    }

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

    .form-wrapper {
        padding: 32px 24px;
    }

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

    .news-card {
        flex-direction: column;
    }

    .news-date {
        flex-direction: row;
        margin-right: 0;
        margin-bottom: 16px;
        gap: 8px;
    }
}

/* Brand refresh */
:root {
    --primary: #07111f;
    --accent: #33d6ff;
    --accent-dark: #1197c7;
    --accent-warm: #f5b971;
    --gradient-start: #15304d;
    --gradient-end: #081422;
    --text-dark: #f6fbff;
    --text-light: #9cb0c8;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --border: rgba(255, 255, 255, 0.1);
    --glow: 0 18px 50px rgba(17, 151, 199, 0.16);
}

body {
    background:
        radial-gradient(circle at top left, rgba(51, 214, 255, 0.08), transparent 28%),
        radial-gradient(circle at 85% 15%, rgba(245, 185, 113, 0.08), transparent 22%),
        var(--primary);
}

.header {
    background: rgba(7, 17, 31, 0.84);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

.header.scrolled {
    background: rgba(7, 17, 31, 0.96);
}

.nav {
    padding: 16px 24px;
}

.logo-icon {
    box-shadow: 0 12px 24px rgba(17, 151, 199, 0.3);
}

.nav-list a {
    letter-spacing: 0.4px;
}

.hero {
    padding-top: 92px;
}

.hero-layout {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 40px;
    align-items: center;
    padding: 80px 0 72px;
}

.hero-copy {
    text-align: left;
    max-width: 720px;
}

.hero-title {
    font-size: clamp(38px, 4.8vw, 58px);
    letter-spacing: 0;
    white-space: nowrap;
    margin-bottom: 18px;
}

.hero-lead {
    font-size: 18px;
    line-height: 1.9;
    color: var(--text-light);
    max-width: 620px;
    margin-bottom: 28px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 28px;
}

.hero-values {
    justify-content: flex-start;
    gap: 14px;
}

.hero-value {
    padding: 12px 22px;
    background: rgba(255, 255, 255, 0.05);
}

.hero-panel {
    display: grid;
    gap: 16px;
}

.hero-panel-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 26px;
    backdrop-filter: blur(18px);
    box-shadow: var(--glow);
}

.hero-panel-card strong {
    display: block;
    margin: 8px 0 10px;
    font-size: 22px;
}

.hero-panel-card p,
.hero-panel-card li {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.8;
}

.hero-panel-card ul {
    list-style: none;
    display: grid;
    gap: 10px;
}

.hero-panel-card li {
    display: flex;
    align-items: center;
    gap: 10px;
}

.hero-panel-card li::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 5px rgba(51, 214, 255, 0.12);
}

.hero-panel-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.mini-stat {
    padding: 18px 16px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    text-align: center;
}

.mini-stat .num {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent);
    display: block;
    margin-bottom: 4px;
}

.mini-stat .label {
    font-size: 12px;
    color: var(--text-light);
}

.section {
    padding: 108px 0;
}

.section-title {
    letter-spacing: -0.02em;
}

.section-desc {
    margin-top: 8px;
}

.intro-grid,
.solution-card,
.team-grid,
.contact-grid,
.values-grid,
.advantages-grid,
.services-grid,
.testimonials-grid,
.news-grid,
.case-grid {
    gap: 24px;
}

.intro-grid {
    align-items: stretch;
}

.intro-content,
.intro-visual,
.service-detail,
.value-card,
.advantage-card,
.service-card,
.testimonial-card,
.news-card,
.case-card,
.contact-card,
.team-card,
.credential-item,
.solution-card,
.form-wrapper {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
        var(--bg-card);
    border: 1px solid var(--border);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
}

.intro-content,
.team-card,
.service-detail {
    border-radius: 24px;
    padding: 36px;
}

.intro-visual {
    border-radius: 24px;
    min-height: 440px;
}

.intro-visual::after {
    content: "弱电系统集成";
    position: absolute;
    left: 50%;
    bottom: 30px;
    transform: translateX(-50%);
    z-index: 2;
    font-size: 22px;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.55);
}

.stat-item,
.advantage-card,
.service-card,
.value-card,
.testimonial-card,
.case-card,
.contact-card,
.credential-item,
.news-card,
.process-item {
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.stat-item:hover,
.advantage-card:hover,
.service-card:hover,
.value-card:hover,
.testimonial-card:hover,
.case-card:hover,
.contact-card:hover,
.credential-item:hover,
.news-card:hover,
.process-item:hover {
    transform: translateY(-6px);
    border-color: rgba(51, 214, 255, 0.35);
    box-shadow: var(--glow);
}

.page-header {
    padding: 148px 0 84px;
}

.page-header .container {
    position: relative;
    z-index: 2;
}

.page-header h1 {
    font-size: clamp(34px, 5vw, 52px);
    margin-bottom: 14px;
}

.page-header p {
    font-size: 17px;
    color: #cbd8e7;
}

.content-section {
    padding: 92px 0;
}

.content-section h2 {
    font-size: 34px;
}

.solution-card {
    gap: 34px;
}

.solution-content ul {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 20px;
}

.solution-image {
    position: relative;
    width: 160px;
    height: 160px;
    border-radius: 28px;
    display: grid;
    place-items: center;
    margin-left: 0;
    background: linear-gradient(135deg, rgba(51, 214, 255, 0.14), rgba(245, 185, 113, 0.12));
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.solution-image::after {
    content: "场景";
    font-size: 14px;
    color: var(--text-light);
    position: absolute;
    left: 50%;
    bottom: 18px;
    transform: translateX(-50%);
}

.news-link,
.footer-links a,
.nav-list a {
    transition: color 0.2s ease, opacity 0.2s ease;
}

.faq-question {
    position: relative;
}

.faq-question::after {
    content: "+";
    margin-left: auto;
    color: var(--accent);
    font-size: 22px;
    line-height: 1;
    transition: transform 0.2s ease;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.contact-grid {
    margin-top: 40px;
}

.form-wrapper {
    max-width: 680px;
}

.form-wrapper h3 {
    font-size: 26px;
    letter-spacing: -0.01em;
}

.submit-btn,
.btn {
    box-shadow: 0 10px 28px rgba(51, 214, 255, 0.18);
}

.footer {
    padding-top: 92px;
}

.footer-grid {
    gap: 44px;
}

.footer-bottom {
    padding-top: 28px;
}

/* Responsive refresh */
@media (max-width: 1024px) {
    .hero-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .hero-copy {
        max-width: none;
    }

    .hero-values {
        justify-content: flex-start;
    }

    .hero-panel {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .hero-panel-card:first-child {
        grid-column: 1 / -1;
    }

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

@media (max-width: 768px) {
    .hero {
        padding-top: 76px;
    }

    .hero-layout {
        padding: 56px 0 60px;
    }

    .hero-title {
        font-size: clamp(24px, 7.2vw, 36px);
        white-space: nowrap;
    }

    .hero-actions {
        gap: 10px;
    }

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

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

    .page-header {
        padding: 132px 0 64px;
    }

    .content-section,
    .section {
        padding: 72px 0;
    }

    .intro-content,
    .team-card,
    .service-detail,
    .form-wrapper {
        padding: 28px 22px;
    }

    .solution-card {
        padding: 28px 22px;
    }
}