/* ============================================
   达州市飞宇软件有限公司 - 官网样式
   风格：活泼科技风 / Playful Tech
   主色：#1246A0 商务科技蓝
   强调色：#F97316 亮橙
   ============================================ */

/* --- Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=Noto+Sans+SC:wght@300;400;500;600;700;800&display=swap');

/* --- CSS Variables --- */
:root {
    --primary: #1246A0;
    --primary-light: #2E6BD6;
    --primary-dark: #0A3578;
    --primary-bg: #EEF4FF;
    --accent: #F97316;
    --accent-light: #FB923C;
    --accent-dark: #EA580C;
    --text-dark: #1E293B;
    --text-mid: #64748B;
    --text-light: #94A3B8;
    --white: #FFFFFF;
    --card-bg: #FFFFFF;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 14px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.12);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-display: 'DM Serif Display', serif;
    --font-body: 'Noto Sans SC', sans-serif;
}

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

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

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

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

/* --- Section Spacing --- */
.section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-mid);
    max-width: 600px;
    margin-bottom: 48px;
}

.section-label {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary);
    background: rgba(18, 70, 160, 0.08);
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
}

/* --- Header / Navigation --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.04);
    transition: var(--transition);
}

.site-header.scrolled {
    box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-dark);
}

.logo-img {
    height: 36px;
    width: auto;
    object-fit: contain;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    font-weight: 800;
    font-family: var(--font-display);
}

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

.logo-text span:first-child {
    font-size: 1.05rem;
}

.logo-text span:last-child {
    font-size: 0.65rem;
    color: var(--text-mid);
    font-weight: 400;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-mid);
    position: relative;
    padding: 4px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary);
}

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

.nav-cta {
    background: var(--accent) !important;
    color: white !important;
    padding: 10px 24px !important;
    border-radius: 50px;
    font-weight: 600 !important;
    font-size: 0.875rem !important;
    transition: var(--transition);
}

.nav-cta:hover {
    background: var(--accent-dark) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
}

.nav-cta::after {
    display: none !important;
}

/* --- Mobile Menu Toggle --- */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
    border: none;
    background: none;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2.5px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 72px;
    background: linear-gradient(135deg, var(--primary-bg) 0%, #E0F2FE 50%, #E3EEFF 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -20%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(46, 107, 214, 0.10) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -15%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    padding-right: 20px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--primary);
    background: rgba(18, 70, 160, 0.1);
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 24px;
}

.hero-badge i {
    font-size: 0.625rem;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero h1 {
    font-size: 3.75rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--text-dark);
    margin-bottom: 20px;
    letter-spacing: -0.03em;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero h1 .highlight-orange {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-mid);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-body);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--accent);
    color: white;
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
}

.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.4);
}

.btn-secondary {
    background: var(--white);
    color: var(--text-dark);
    border: 1.5px solid #E2E8F0;
}

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

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.hero-card-stack {
    position: relative;
    width: 100%;
    max-width: 480px;
}

.hero-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.hero-card-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-mid);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.hero-card-items {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.hero-card-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    background: var(--primary-bg);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    cursor: default;
}

.hero-card-item .hero-card-link {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    text-decoration: none;
}

.hero-card-item:hover {
    background: rgba(18, 70, 160, 0.12);
    transform: translateX(4px);
}

.hero-card-item .icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: white;
    flex-shrink: 0;
}

.hero-card-item .icon.green { background: var(--primary); }
.hero-card-item .icon.orange { background: var(--accent); }
.hero-card-item .icon.blue { background: #3B82F6; }

.hero-card-item .info h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 2px;
}

.hero-card-item .info p {
    font-size: 0.8125rem;
    color: var(--text-light);
    margin: 0;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    font-size: 0.75rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(6px); }
}

/* --- Products / Solutions Section --- */
.products-section {
    background: var(--white);
}

.products-header {
    text-align: center;
    margin-bottom: 60px;
}

.products-header .section-title {
    font-size: 2.25rem;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.product-card {
    background: var(--white);
    border: 1px solid #F1F5F9;
    border-radius: var(--radius-md);
    padding: 36px 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    transform: scaleX(0);
    transition: var(--transition);
    transform-origin: left;
}

.product-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

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

.product-card-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    margin-bottom: 20px;
}

.product-card-icon.green { background: linear-gradient(135deg, var(--primary), var(--primary-light)); }
.product-card-icon.orange { background: linear-gradient(135deg, var(--accent), var(--accent-light)); }
.product-card-icon.blue { background: linear-gradient(135deg, #3B82F6, #60A5FA); }
.product-card-icon.purple { background: linear-gradient(135deg, #8B5CF6, #A78BFA); }
.product-card-icon.teal { background: linear-gradient(135deg, #0284C7, #38BDF8); }
.product-card-icon.rose { background: linear-gradient(135deg, #E11D48, #FB7185); }

.product-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.product-card p {
    font-size: 0.9375rem;
    color: var(--text-mid);
    line-height: 1.6;
    margin-bottom: 20px;
}

.product-card .product-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--primary);
    background: rgba(18, 70, 160, 0.08);
    padding: 3px 10px;
    border-radius: 20px;
}

.product-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--primary);
    margin-top: 16px;
}

.product-card-link i {
    transition: var(--transition);
    font-size: 0.8125rem;
}

.product-card:hover .product-card-link i {
    transform: translateX(4px);
}

/* --- Services Section --- */
.services-section {
    background: var(--primary-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(18, 70, 160, 0.06);
}

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

.service-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 400;
    color: var(--primary-light);
    line-height: 1;
    margin-bottom: 16px;
    opacity: 0.4;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.service-card p {
    font-size: 0.9375rem;
    color: var(--text-mid);
    line-height: 1.6;
}

/* --- Trial Section --- */
.trial-section {
    background: linear-gradient(135deg, #0A3578 0%, #1246A0 55%, #2E6BD6 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.trial-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.trial-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.trial-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
}

.trial-text p {
    font-size: 1.125rem;
    opacity: 0.85;
    line-height: 1.7;
    margin-bottom: 28px;
}

.trial-form {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(12px);
    border-radius: var(--radius-lg);
    padding: 40px;
    border: 1px solid rgba(255,255,255,0.15);
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 6px;
    opacity: 0.9;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.15);
    color: white;
    font-size: 0.9375rem;
    font-family: var(--font-body);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: rgba(255,255,255,0.5);
    background: rgba(255,255,255,0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255,255,255,0.5);
}

.form-group select option {
    color: var(--text-dark);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.btn-form {
    width: 100%;
    background: white;
    color: var(--primary);
    padding: 14px;
    font-size: 1rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
    transition: var(--transition);
}

.btn-form:hover {
    background: var(--accent);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
}

.form-success {
    display: none;
    text-align: center;
    padding: 20px;
}

.form-success.show {
    display: block;
}

.form-success i {
    font-size: 3rem;
    margin-bottom: 12px;
}

.form-success h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

/* --- Stats Section --- */
.stats-section {
    background: var(--white);
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    text-align: center;
}

.stat-item {
    padding: 24px;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 400;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9375rem;
    color: var(--text-mid);
    font-weight: 500;
}

/* --- Contact Section --- */
.contact-section {
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-item .icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.125rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 0.9375rem;
    color: var(--text-mid);
}

.contact-form {
    background: var(--primary-bg);
    border-radius: var(--radius-lg);
    padding: 36px;
}

.contact-form .form-group label {
    color: var(--text-dark);
}

.contact-form .form-group input,
.contact-form .form-group textarea {
    background: var(--white);
    border: 1px solid #E2E8F0;
    color: var(--text-dark);
}

.contact-form .form-group input:focus,
.contact-form .form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(18, 70, 160, 0.12);
}

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

/* --- Footer --- */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 32px;
}

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

.footer-brand .logo {
    color: white;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.7;
    max-width: 320px;
}

.footer-col h4 {
    color: white;
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col ul a {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}

.footer-col ul a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    font-size: 0.8125rem;
}

/* --- Floating CTA --- */
.floating-cta {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: flex-end;
}

.floating-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: var(--font-body);
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.floating-btn.trial {
    background: var(--accent);
    color: white;
}

.floating-btn.trial:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(249, 115, 22, 0.4);
}

.floating-btn.wx {
    background: #07C160;
    color: white;
}

.floating-btn.wx:hover {
    background: #06AD56;
    transform: translateY(-2px);
}

/* --- Toast Notification --- */
.toast {
    position: fixed;
    top: 90px;
    right: 24px;
    z-index: 9999;
    background: var(--white);
    border-radius: var(--radius-sm);
    padding: 16px 24px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
    display: none;
    align-items: center;
    gap: 12px;
    font-size: 0.9375rem;
    font-weight: 500;
    max-width: 400px;
    animation: slideIn 0.3s ease;
}

.toast.show {
    display: flex;
}

.toast.success i { color: #10B981; }
.toast.error i { color: #EF4444; }

@keyframes slideIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* --- Modal --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal-overlay.show {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: var(--primary-bg);
    color: var(--text-mid);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: var(--transition);
}

.modal-close:hover {
    background: #E2E8F0;
    color: var(--text-dark);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.modal-subtitle {
    font-size: 0.9375rem;
    color: var(--text-mid);
    margin-bottom: 24px;
}

/* --- Scroll Animations ---
   注意：初始隐藏只在 html.js 下生效。
   无 JS（含大部分爬虫/AI 抓取器）时内容直接可见，
   避免正文因 opacity:0 而对搜索引擎和 AI 不可见。 */
html.js .fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }

/* --- Responsive --- */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-text {
        padding-right: 0;
    }
    .hero h1 {
        font-size: 3rem;
    }
    .products-grid,
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid #F1F5F9;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
    }
    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    .hero h1 {
        font-size: 2.25rem;
    }
    .hero p {
        font-size: 1rem;
    }
    .section {
        padding: 60px 0;
    }
    .section-title {
        font-size: 1.75rem;
    }
    .products-grid,
    .services-grid,
    .stats-grid,
    .trial-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .trial-form {
        padding: 24px;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   新增：轮播图 / 解决方案 / 成功案例
   ============================================ */

/* --- Carousel (Hero 轮播) --- */
.carousel-container {
    position: relative;
    width: 100%;
    overflow: hidden;
}
.carousel-slides {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4,0,0.2,1);
}
.carousel-slide {
    min-width: 100%;
    min-height: 100vh;
    padding-top: 72px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}
.carousel-slide-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.carousel-slide-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.carousel-slide-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10,53,120,0.85) 0%, rgba(18,70,160,0.45) 50%, rgba(0,0,0,0.2) 100%);
}
.carousel-slide-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
    color: white;
    padding-left: 10%;
}
.carousel-slide-content h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}
.carousel-slide-content p {
    font-size: 1.125rem;
    opacity: 0.9;
    line-height: 1.7;
    margin-bottom: 28px;
}
.carousel-slide-content .btn-white {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    background: white;
    color: var(--primary);
    font-weight: 600;
    font-family: var(--font-body);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}
.carousel-slide-content .btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}
.carousel-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 2;
}
.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: var(--transition);
    border: none;
}
.carousel-dot.active {
    background: white;
    transform: scale(1.3);
}
.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255,255,255,0.3);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: var(--transition);
}
.carousel-arrow:hover {
    background: rgba(255,255,255,0.35);
}
.carousel-arrow.prev { left: 20px; }
.carousel-arrow.next { right: 20px; }

/* --- 解决方案 --- */
.solutions-section {
    background: var(--white);
}
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.solution-card {
    background: var(--white);
    border: 1px solid #F1F5F9;
    border-radius: var(--radius-md);
    padding: 32px 24px;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.solution-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    transform: scaleX(0);
    transition: var(--transition);
    transform-origin: left;
}
.solution-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.solution-card:hover::before { transform: scaleX(1); }
.solution-card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.375rem;
    color: white;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
}
.solution-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.solution-card p {
    font-size: 0.875rem;
    color: var(--text-mid);
    line-height: 1.6;
    margin-bottom: 16px;
}
.solution-card .tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--primary);
    background: rgba(18,70,160,0.08);
    padding: 3px 10px;
    border-radius: 20px;
}
.solution-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    margin-top: 12px;
}
.solution-card-link i { transition: var(--transition); font-size: 0.75rem; }
.solution-card:hover .solution-card-link i { transform: translateX(4px); }

/* --- 解决方案 Banner（无背景图时的渐变底色） --- */
.solution-card .sol-bg {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* --- 成功案例 --- */
.cases-section {
    background: var(--primary-bg);
}
.cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.case-card {
    background: white;
    border-radius: var(--radius-sm);
    padding: 24px;
    text-align: center;
    border: 1px solid rgba(18,70,160,0.06);
    transition: var(--transition);
}
.case-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.case-card .case-logo {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    margin: 0 auto 12px;
    object-fit: contain;
    background: #F8FAFC;
}
.case-card h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 4px;
}
.case-card p {
    font-size: 0.8125rem;
    color: var(--text-mid);
    font-style: italic;
    line-height: 1.5;
}

/* --- 无图片轮播时的备用模式 --- */
.carousel-placeholder {
    min-height: 100vh;
    padding-top: 72px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-bg) 0%, #E0F2FE 50%, #E3EEFF 100%);
    position: relative;
    overflow: hidden;
}
.carousel-placeholder .container { z-index: 1; position: relative; }

@media (max-width: 1024px) {
    .solutions-grid { grid-template-columns: repeat(2, 1fr); }
    .cases-grid { grid-template-columns: repeat(2, 1fr); }
    .carousel-slide-content h1 { font-size: 2.25rem; }
}
@media (max-width: 768px) {
    .solutions-grid, .cases-grid { grid-template-columns: 1fr; }
    .carousel-arrow { display: none; }
    .carousel-slide-content { padding-left: 24px; padding-right: 24px; }
    .carousel-slide-content h1 { font-size: 1.75rem; }
}

/* ============================================
   2026-10-25 畅捷通改版新增样式
   ============================================ */

/* --- 产品卡片操作区 --- */
.product-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: auto;
    padding-top: 18px;
    flex-wrap: wrap;
}
.product-card { display: flex; flex-direction: column; }
.product-card .product-card-link { margin: 0; }

.btn-sm {
    padding: 9px 18px;
    font-size: 0.875rem;
    border-radius: var(--radius-sm);
}

/* --- 服务商代码未配置提示 --- */
.config-hint {
    margin-top: 28px;
    padding: 14px 18px;
    background: #FFF7ED;
    border: 1px solid #FED7AA;
    border-radius: var(--radius-md);
    color: #9A3412;
    font-size: 0.875rem;
    line-height: 1.7;
}
.config-hint i { margin-right: 6px; }

/* --- 场景标签 --- */
.scenario-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
    max-width: 860px;
    margin: 0 auto;
}
.scenario-tag {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 13px 24px;
    background: var(--white);
    border: 1px solid #E2E8F0;
    border-radius: 999px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-dark);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.scenario-tag:hover {
    border-color: var(--primary-light);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.scenario-tag i { color: var(--primary); font-size: 0.8125rem; }

.scenario-products {
    font-size: 0.8125rem;
    color: var(--primary);
    font-weight: 600;
    margin-top: 8px;
}

/* --- FAQ --- */
.faq-section { background: var(--white); }
.faq-list {
    max-width: 880px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.faq-item {
    background: var(--white);
    border: 1px solid #E2E8F0;
    border-radius: var(--radius-md);
    padding: 0 24px;
    transition: var(--transition);
}
.faq-item[open] {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
}
.faq-item summary {
    padding: 20px 0;
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.75rem;
    color: var(--text-light);
    transition: var(--transition);
    flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(180deg); color: var(--primary); }
.faq-item summary:hover { color: var(--primary); }
.faq-answer {
    padding: 0 0 20px;
    border-top: 1px solid #F1F5F9;
    padding-top: 16px;
}
.faq-answer p {
    color: var(--text-mid);
    line-height: 1.85;
    font-size: 0.9375rem;
}

/* --- 产品详情页头部 --- */
.product-hero { padding-top: 96px; padding-bottom: 64px; }

/* --- 响应式 --- */
@media (max-width: 768px) {
    .product-actions { flex-direction: column; align-items: stretch; }
    .product-actions .btn { text-align: center; }
    .scenario-tags { gap: 10px; }
    .scenario-tag { padding: 11px 18px; font-size: 0.875rem; }
    .faq-item { padding: 0 18px; }
    .faq-item summary { font-size: 1rem; padding: 16px 0; }
}

/* --- 在线自主注册区块（2026-10-25） --- */
.trial-register {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-md);
    border: 1px solid #E2E8F0;
}
.trial-register-head { text-align: center; margin-bottom: 28px; }
.trial-register-head h3 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}
.trial-register-head h3 i { color: var(--accent); }
.trial-register-head p { color: var(--text-mid); font-size: 0.9375rem; }

.trial-register-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}
.trial-register-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 22px 14px;
    background: linear-gradient(160deg, #F8FAFF 0%, #EEF4FF 100%);
    border: 1px solid #DCE7FA;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: var(--transition);
}
.trial-register-item:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 10px 24px rgba(18, 70, 160, 0.14);
    background: linear-gradient(160deg, #EEF4FF 0%, #E3EEFF 100%);
}
.trial-register-name {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.01em;
}
.trial-register-cat {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-bottom: 6px;
}
.trial-register-btn {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--white);
    background: var(--primary);
    padding: 7px 16px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}
.trial-register-item:hover .trial-register-btn { background: var(--accent); }
.trial-register-btn i { font-size: 0.6875rem; }

.trial-register-note {
    margin-top: 22px;
    text-align: center;
    font-size: 0.8125rem;
    color: var(--text-light);
    line-height: 1.7;
}
.trial-register-note i { color: var(--primary); margin-right: 5px; }

/* --- 产品详情页双路径 --- */
.trial-paths {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    align-items: start;
}
.trial-path {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    box-shadow: var(--shadow-md);
    border: 1px solid #E2E8F0;
    height: 100%;
}
.trial-path-online {
    border: 2px solid var(--primary);
    box-shadow: 0 12px 32px rgba(18, 70, 160, 0.14);
}
.trial-path-badge {
    position: absolute;
    top: -13px;
    left: 32px;
    background: var(--accent);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 5px 14px;
    border-radius: 999px;
    letter-spacing: 0.02em;
}
.trial-path-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.375rem;
    margin-bottom: 18px;
}
.trial-path-demo .trial-path-icon {
    background: linear-gradient(135deg, #F97316 0%, #FB923C 100%);
}
.trial-path h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}
.trial-path > p {
    color: var(--text-mid);
    font-size: 0.9375rem;
    line-height: 1.75;
    margin-bottom: 18px;
}
.trial-path-points {
    list-style: none;
    padding: 0;
    margin: 0 0 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.trial-path-points li {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 0.9375rem;
    color: var(--text-dark);
}
.trial-path-points i {
    color: #10B981;
    font-size: 0.8125rem;
    flex-shrink: 0;
}
.btn-block { display: block; width: 100%; text-align: center; }
.trial-path-note {
    margin-top: 14px;
    font-size: 0.8125rem;
    color: var(--text-light);
    text-align: center;
    line-height: 1.6;
}
.trial-path-form .form-group { margin-bottom: 16px; }
.trial-path-form label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 7px;
}
.trial-path-form input,
.trial-path-form select,
.trial-path-form textarea {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid #E2E8F0;
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-family: inherit;
    color: var(--text-dark);
    background: var(--white);
    transition: var(--transition);
}
.trial-path-form input:focus,
.trial-path-form select:focus,
.trial-path-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(18, 70, 160, 0.1);
}
.trial-path-form textarea { min-height: 84px; resize: vertical; }
.trial-path-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

@media (max-width: 1024px) {
    .trial-register-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
    .trial-register { padding: 22px 18px; }
    .trial-register-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .trial-register-item { padding: 18px 10px; }
    .trial-register-head h3 { font-size: 1.125rem; }
    .trial-paths { grid-template-columns: 1fr; gap: 20px; }
    .trial-path { padding: 28px 20px; }
    .trial-path-form .form-row { grid-template-columns: 1fr; }
}

/* --- 深色 trial 区里的标题需要反白，否则深蓝字压蓝底看不清 --- */
.trial-section .section-title { color: #FFFFFF; }
.trial-section .section-subtitle { color: rgba(255, 255, 255, 0.82); }
.trial-section .section-label {
    color: #FFFFFF;
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.28);
}