/* ===== 鍩虹閲嶇疆 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4f46e5;
    --primary-dark: #7c3aed;
    --primary-light: #6366f1;
    --accent: #8b5cf6;
    --text-dark: #1e293b;
    --text-gray: #64748b;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --border: #e2e8f0;
    --gradient: linear-gradient(135deg, #2563eb 0%, #7c3aed 50%, #a855f7 100%);
    --shadow: 0 10px 40px rgba(79, 70, 229, 0.15);
    --shadow-hover: 0 20px 60px rgba(124, 58, 237, 0.2);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background: var(--white);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* ===== 鎸夐挳 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: var(--shadow);
}

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

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

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

.btn-white {
    background: var(--white);
    color: var(--primary);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
}

.btn-lg {
    padding: 16px 40px;
    font-size: 16px;
}

/* ===== 瀵艰埅鏍?===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
}

.navbar.scrolled {
    padding: 12px 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
}

.logo-icon {
    color: var(--primary);
    font-size: 24px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 36px;
}

.nav-menu a {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-gray);
    position: relative;
    padding: 4px 0;
}

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

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

.nav-menu a.active {
    color: var(--primary);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    transition: all 0.3s ease;
}

/* ===== Hero鍖哄煙 ===== */
.hero {
    position: relative;
    padding: 180px 0 120px;
    background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-size: 52px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--text-dark);
}

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

.hero-subtitle {
    font-size: 18px;
    color: var(--text-gray);
    margin-bottom: 36px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-gray);
}

.hero-visual {
    position: relative;
}

.hero-card {
    position: relative;
    background: var(--white);
    border-radius: 24px;
    padding: 48px;
    box-shadow: var(--shadow);
    overflow: hidden;
    text-align: center;
}

.card-glow {
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: var(--gradient);
    opacity: 0.06;
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

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

.ai-icon {
    font-size: 64px;
    margin-bottom: 16px;
}

.card-content h3 {
    font-size: 22px;
    margin-bottom: 8px;
}

.card-content p {
    color: var(--text-gray);
}

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

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--primary);
    top: -100px;
    right: -100px;
}

.orb-2 {
    width: 300px;
    height: 300px;
    background: var(--accent);
    bottom: -100px;
    left: -100px;
}

/* ===== 鍖哄潡閫氱敤 ===== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.section-desc {
    font-size: 17px;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== 鏈嶅姟鍖哄煙 ===== */
.services {
    padding: 100px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 28px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}

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

.service-icon {
    width: 56px;
    height: 56px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary);
}

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

.service-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.service-card p {
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 16px;
    line-height: 1.7;
}

.service-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
}

.service-link:hover {
    color: var(--primary-dark);
}

/* ===== 涓轰粈涔堥€夋嫨鎴戜滑 ===== */
.why-us {
    padding: 100px 0;
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
}

.feature-item {
    background: var(--white);
    border-radius: 16px;
    padding: 36px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
}

.feature-number {
    font-size: 40px;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.feature-item h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.feature-item p {
    color: var(--text-gray);
    font-size: 15px;
    line-height: 1.7;
}

/* ===== CTA鍖哄煙 ===== */
.cta {
    padding: 100px 0;
    background: var(--gradient);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: 40px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 36px;
}

.cta-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.cta-or {
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
}

.cta-phone {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
}

.cta-phone:hover {
    text-decoration: underline;
}

/* ===== 椤佃剼 ===== */
.footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 64px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer .logo {
    color: var(--white);
    margin-bottom: 16px;
}

.footer-brand p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 14px;
}

.footer-contact a:hover {
    color: var(--primary-light);
}

.footer-links h4 {
    color: var(--white);
    font-size: 16px;
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
}

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

.footer-links a {
    font-size: 14px;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    font-size: 14px;
}

/* ===== 椤甸潰閫氱敤Hero锛堝唴椤碉級 ===== */
.page-hero {
    padding: 160px 0 80px;
    background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
    text-align: center;
}

.page-hero h1 {
    font-size: 44px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.page-hero p {
    font-size: 18px;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== 鍏充簬鎴戜滑椤甸潰 ===== */
.about-section {
    padding: 100px 0;
}

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

.about-text h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.about-text p {
    color: var(--text-gray);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-visual {
    background: var(--gradient);
    border-radius: 24px;
    padding: 60px;
    color: var(--white);
    text-align: center;
}

.about-visual .stat-big {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 8px;
}

.about-visual p {
    font-size: 16px;
    opacity: 0.9;
}

.mission-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.mission-card {
    background: var(--white);
    border-radius: 16px;
    padding: 40px;
    text-align: center;
}

.mission-card .icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.mission-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.mission-card p {
    color: var(--text-gray);
    line-height: 1.7;
}

/* ===== 鏈嶅姟璇︽儏椤甸潰 ===== */
.service-detail {
    padding: 80px 0;
}

.service-detail:nth-child(even) {
    background: var(--bg-light);
}

.service-detail .container {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 60px;
    align-items: center;
}

.service-detail:nth-child(even) .container {
    grid-template-columns: 1.2fr 0.8fr;
}

.service-detail:nth-child(even) .service-detail-visual {
    order: -1;
}

.service-detail-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    margin-bottom: 24px;
}

.service-detail h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.service-detail p {
    color: var(--text-gray);
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding-left: 28px;
    position: relative;
    margin-bottom: 12px;
    color: var(--text-gray);
}

.service-features li::before {
    content: '鉁?;
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

.service-detail-visual {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow);
}

.service-detail-visual .big-number {
    font-size: 48px;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

/* ===== 妗堜緥椤甸潰 ===== */
.cases-section {
    padding: 100px 0;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 32px;
}

.case-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

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

.case-header {
    background: var(--gradient);
    padding: 32px;
    color: var(--white);
}

.case-header h3 {
    font-size: 22px;
    margin-bottom: 8px;
}

.case-header .case-tag {
    font-size: 14px;
    opacity: 0.9;
}

.case-body {
    padding: 32px;
}

.case-body .case-item {
    margin-bottom: 20px;
}

.case-body .case-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
}

.case-body .case-text {
    color: var(--text-gray);
    font-size: 15px;
    line-height: 1.7;
}

.case-result {
    background: var(--bg-light);
    border-radius: 12px;
    padding: 20px;
    margin-top: 20px;
}

.case-result .result-number {
    font-size: 32px;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== 鑱旂郴椤甸潰 ===== */
.contact-section {
    padding: 100px 0;
}

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

.contact-info h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.contact-info p {
    color: var(--text-gray);
    margin-bottom: 32px;
    line-height: 1.8;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-item .icon {
    width: 48px;
    height: 48px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary);
}

.contact-item .info-label {
    font-size: 13px;
    color: var(--text-gray);
    margin-bottom: 2px;
}

.contact-item .info-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
}

.contact-form {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow);
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 15px;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-note {
    font-size: 13px;
    color: var(--text-gray);
    text-align: center;
    margin-top: 16px;
}

/* ===== 鍝嶅簲寮?===== */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-title {
        font-size: 40px;
    }
    .about-grid,
    .service-detail .container,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .service-detail:nth-child(even) .container {
        grid-template-columns: 1fr;
    }
    .service-detail:nth-child(even) .service-detail-visual {
        order: 0;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    .nav-menu.active {
        transform: translateX(0);
    }
    .mobile-menu-toggle {
        display: flex;
    }
    .navbar .btn {
        display: none;
    }
    .hero {
        padding: 140px 0 80px;
    }
    .hero-title {
        font-size: 32px;
    }
    .hero-stats {
        gap: 24px;
    }
    .section-title,
    .cta-content h2 {
        font-size: 32px;
    }
    .page-hero h1 {
        font-size: 32px;
    }
    .hero-actions {
        flex-direction: column;
    }
    .btn-lg {
        width: 100%;
    }
}

/* ===== Logo 图片样式 ===== */
.logo-img { height: 36px; width: auto; border-radius: 8px; }
.footer-brand .logo-img { height: 40px; width: auto; border-radius: 8px; margin-bottom: 16px; }

/* ===== 联系页微信二维码 ===== */
.contact-wechat h2 { font-size: 32px; font-weight: 700; margin-bottom: 24px; color: var(--text-dark); }
.wechat-card { background: var(--white); border: 1px solid var(--border); border-radius: 16px; padding: 32px; text-align: center; box-shadow: var(--shadow); }
.wechat-qr { width: 220px; height: 220px; margin: 0 auto 20px; border-radius: 12px; overflow: hidden; border: 2px solid var(--border); }
.wechat-qr img { width: 100%; height: 100%; object-fit: contain; display: block; }
.wechat-tip { color: var(--text-gray); font-size: 15px; }
@media (max-width: 968px) { .contact-wechat { margin-top: 8px; } }