/* 广州数达智算信息科技有限公司 - 官网样式 */

:root {
    --site-bg: linear-gradient(180deg, #e6f2ff 0%, #cce5ff 50%, #99ccff 100%);
    --site-surface: rgba(255, 255, 255, 0.85);
    --site-surface-solid: #ffffff;
    --site-primary: #0a2540;
    --site-accent: #0066cc;
    --site-accent-strong: #0052a3;
    --site-accent-soft: rgba(0, 102, 204, 0.15);
    --site-success: #16a34a;
    --site-warning: #f59e0b;
    --site-muted: #5a7a9a;
    --site-border: rgba(0, 102, 204, 0.2);
    --site-shadow-sm: 0 10px 30px rgba(0, 51, 102, 0.12);
    --site-shadow-md: 0 24px 60px rgba(0, 51, 102, 0.18);
    --site-gradient: linear-gradient(135deg, rgba(0, 102, 204, 0.95), rgba(0, 82, 163, 0.85));
    --site-hero-gradient: linear-gradient(135deg, #87ceeb 0%, #4a90e2 50%, #0066cc 100%);
    --site-radius-lg: 28px;
    --site-radius-md: 20px;
    --site-radius-sm: 12px;
}

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

body {
    font-family: 'Inter', 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--site-bg);
    background-attachment: fixed;
    color: var(--site-primary);
    line-height: 1.65;
}

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

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

/***** 导航栏 *****/
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(230, 242, 255, 0.85);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 102, 204, 0.2);
}

.navbar-container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 18px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.navbar-logo {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    font-weight: 700;
    color: var(--site-accent);
}

.navbar-logo-icon {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(37, 99, 235, 0.18);
    font-size: 22px;
}

img.navbar-logo-icon {
    display: block;
    background: transparent;
    border-radius: 0;
    object-fit: contain;
}

.navbar-logo-text {
    font-size: 28px;
    line-height: 1;
}

.navbar-logo-text-d {
    color: #0066CC;
}

.navbar-logo-text-p {
    color: #8EBEFF;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
}

.navbar-menu a {
    font-size: 15px;
    font-weight: 500;
    color: var(--site-primary);
    opacity: 0.75;
    transition: opacity 0.2s ease, color 0.2s ease;
}

.navbar-menu a:hover,
.navbar-menu a.active {
    opacity: 1;
    color: var(--site-accent);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.navbar-actions .btn-primary {
    color: #fff;
}

.navbar-actions .btn-primary:hover {
    color: #fff;
}

.navbar-actions .btn-outline {
    color: var(--site-accent);
}

.navbar-actions .btn-outline:hover {
    color: var(--site-accent);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.25s ease;
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-outline {
    border-color: rgba(37, 99, 235, 0.35);
    color: var(--site-accent);
    background: rgba(37, 99, 235, 0.1);
}

.btn-outline:hover {
    border-color: var(--site-accent);
    background: rgba(37, 99, 235, 0.16);
}

.btn-primary {
    background: var(--site-accent);
    color: #fff;
    box-shadow: 0 16px 35px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
    background: var(--site-accent-strong);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.28);
}

.btn-ghost {
    background: rgba(15, 23, 42, 0.12);
    color: #fff;
}

.btn-large {
    padding: 14px 28px;
    font-size: 16px;
}

/***** Hero *****/
.hero {
    background: var(--site-hero-gradient);
    background-image: url('/website/static/img/layout-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #ffffff;
    padding: 120px 24px 100px;
    border-radius: 0;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 102, 204, 0.3);
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.75), rgba(0, 82, 163, 0.65)),
                radial-gradient(circle at 20% 20%, rgba(135, 206, 235, 0.3), transparent 55%),
                radial-gradient(circle at 80% 30%, rgba(74, 144, 226, 0.25), transparent 60%);
    pointer-events: none;
}

.hero-container {
    max-width: 1180px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    display: grid;
    gap: 60px;
}

.hero-title {
    font-size: clamp(42px, 6vw, 58px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: #f8fafc;
    max-width: 680px;
    white-space: nowrap;
}

.hero-subtitle {
    font-size: 18px;
    max-width: 620px;
    color: rgba(226, 232, 240, 0.78);
    margin-top: 18px;
}

.hero-actions {
    margin-top: 36px;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
}

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

.hero-actions .btn-primary {
    border: 2px solid rgba(255, 255, 255, 0.8);
}

.hero-actions .btn-primary:hover {
    border-color: #ffffff;
}

.hero-actions .btn-outline {
    border: 2px solid rgba(255, 255, 255, 0.8);
    color: #ffffff;
    background: transparent;
}

.hero-actions .btn-outline:hover {
    border-color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

.hero-actions .btn-ghost {
    border: 2px solid rgba(255, 255, 255, 0.8);
}

.hero-actions .btn-ghost:hover {
    border-color: #ffffff;
}

.hero-insights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 18px;
    margin-top: 32px;
}

.hero-insight-card {
    background: rgba(255, 255, 255, 0.25);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-radius: var(--site-radius-sm);
    padding: 20px;
    display: grid;
    gap: 6px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: transform 0.3s ease, background 0.3s ease;
}

.hero-insight-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.35);
}

.hero-insight-card span {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.8);
}

.hero-insight-card strong {
    font-size: 26px;
    color: #ffffff;
    font-weight: 700;
}

/***** 通用布局 *****/
.section {
    padding: 96px 24px;
}

.section-alt {
    background: var(--site-surface);
}

.section--narrow {
    padding: 80px 24px 40px;
}

.section--white {
    background: #fff;
}

.section-header {
    max-width: 760px;
    margin: 0 auto 48px;
    text-align: center;
    display: grid;
    gap: 12px;
}

.section-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    letter-spacing: -0.01em;
}

.section-subtitle {
    color: var(--site-muted);
    font-size: 16px;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 0 auto;
}

.section-subtitle--full {
    display: block;
    text-align: center;
    margin: 0 auto;
    max-width: 720px;
}

.section-subtitle::before,
.section-subtitle::after {
    content: '';
    width: 38px;
    height: 2px;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.35);
}

.section-subtitle--plain {
    display: block;
    text-align: left;
}

.section-subtitle--plain.section-subtitle--nowrap {
    white-space: nowrap;
}

.section-subtitle--plain::before,
.section-subtitle--plain::after {
    display: none;
}

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

.mt-32 {
    margin-top: 32px;
}

.mt-12 {
    margin-top: 12px;
}

.mb-24 {
    margin-bottom: 24px;
}

.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: grid;
    gap: 16px;
}

.btn-block {
    width: 100%;
}

.note-text {
    font-size: 13px;
    color: var(--site-muted);
}

.container {
    max-width: 1180px;
    margin: 0 auto;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 18px;
}

.stat-item {
    background: var(--site-surface);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-radius: var(--site-radius-sm);
    padding: 22px 24px;
    box-shadow: var(--site-shadow-sm);
    border: 1px solid rgba(0, 102, 204, 0.2);
}

.stat-number {
    font-size: 30px;
    font-weight: 700;
    color: var(--site-accent);
}

.stat-label {
    margin-top: 6px;
    color: var(--site-muted);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/***** 功能网格 *****/
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.features-grid-2 {
    grid-template-columns: repeat(2, 1fr);
}
.features-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.feature-card {
    background: var(--site-surface);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-radius: var(--site-radius-sm);
    padding: 24px;
    border: 1px solid rgba(0, 102, 204, 0.2);
    box-shadow: var(--site-shadow-sm);
    display: grid;
    gap: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--site-shadow-md);
    background: rgba(255, 255, 255, 0.95);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 102, 204, 0.15);
    font-size: 22px;
    color: var(--site-accent);
    transition: transform 0.3s ease, background 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    background: rgba(0, 102, 204, 0.25);
}

.feature-title {
    font-size: 18px;
    font-weight: 600;
}

.feature-description {
    font-size: 14px;
    color: var(--site-muted);
}

/***** 价格计划 *****/
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.pricing-card {
    position: relative;
    background: var(--site-surface);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-radius: var(--site-radius-md);
    padding: 28px 26px;
    border: 1px solid rgba(0, 102, 204, 0.2);
    box-shadow: var(--site-shadow-sm);
    display: grid;
    gap: 14px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--site-shadow-md);
}

.pricing-card.featured {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(240, 248, 255, 0.98) 100%);
    color: var(--site-primary);
    border: 2px solid rgba(0, 102, 204, 0.3);
    box-shadow: 0 8px 32px rgba(0, 102, 204, 0.12), 0 4px 16px rgba(0, 102, 204, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.9);
    position: relative;
    overflow: hidden;
}

.pricing-card.featured::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, rgba(0, 102, 204, 0.8) 0%, rgba(74, 144, 226, 0.6) 50%, rgba(0, 102, 204, 0.8) 100%);
    z-index: 1;
}

.pricing-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    background: var(--site-accent);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 102, 204, 0.2);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    z-index: 10;
    line-height: 1.4;
}

.pricing-name {
    font-size: 20px;
    font-weight: 600;
}

.pricing-price {
    font-size: 32px;
    font-weight: 700;
    color: var(--site-accent);
}

.pricing-card.featured .pricing-price {
    color: var(--site-accent);
    background: linear-gradient(135deg, var(--site-accent) 0%, rgba(74, 144, 226, 0.9) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pricing-price-unit {
    font-size: 14px;
    margin-left: 4px;
    color: var(--site-muted);
}

.pricing-card.featured .pricing-price-unit {
    color: var(--site-muted);
}

.pricing-description {
    color: var(--site-muted);
    font-size: 14px;
}

.pricing-card.featured .pricing-description {
    color: var(--site-muted);
}

.pricing-features {
    list-style: none;
    display: grid;
    gap: 10px;
    font-size: 14px;
    color: var(--site-primary);
}

.pricing-card.featured .pricing-features {
    color: var(--site-text);
}

.pricing-card.featured .pricing-name {
    font-weight: 700;
    position: relative;
    z-index: 2;
}

.pricing-card.featured .btn-primary {
    background: linear-gradient(135deg, var(--site-accent) 0%, rgba(74, 144, 226, 0.95) 100%);
    color: #fff;
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.3), 0 4px 12px rgba(0, 102, 204, 0.2);
    border: none;
    position: relative;
    z-index: 2;
}

.pricing-card.featured .btn-primary:hover {
    background: linear-gradient(135deg, var(--site-accent-strong) 0%, var(--site-accent) 100%);
    box-shadow: 0 12px 32px rgba(0, 102, 204, 0.4), 0 6px 16px rgba(0, 102, 204, 0.3);
    transform: translateY(-2px);
}

/***** FAQ 列表 *****/
.faq-list .feature-card {
    background: var(--site-surface);
    border: 1px solid rgba(148, 163, 184, 0.16);
}

/***** 产品展示 *****/
.product-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-bottom: 96px;
    align-items: stretch;
}

.product-image {
    min-height: 320px;
    height: 100%;
    border-radius: var(--site-radius-md);
    background: url('/website/static/img/index-data-intelligence.png') center center / 100% auto no-repeat;
    box-shadow: var(--site-shadow-sm);
    position: relative;
    overflow: hidden;
}

.product-image--data-collection {
    background-image: url('/website/static/img/features-data-collection.png');
}

.product-image--intelligent-control {
    background-image: url('/website/static/img/features-intelligent-control.png');
}

.product-image--mobile-matrix {
    background-image: url('/website/static/img/features-mobile-matrix.png');
}

.product-image--auto-increment {
    background-image: url('/website/static/img/features-auto-increment.png');
}

.product-image--solution-auto {
    background-image: url('/website/static/img/solution-media-case.png');
}

.product-image--solution-case4 {
    background-image: url('/website/static/img/solution-auto-case.png');
}

.product-image--solution-airline {
    background-image: url('/website/static/img/solution-airline-case.png');
}

.product-image--solution-hotel {
    background-image: url('/website/static/img/solution-hotel-case.png');
}

.product-image--about-company {
    background-image: url('/website/static/img/about-company.png');
}

.product-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.2), transparent 60%);
    pointer-events: none;
}

.product-content {
    display: grid;
    gap: 16px;
}

.product-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--site-accent);
}

.product-title {
    font-size: 26px;
    font-weight: 700;
}

.product-description {
    color: var(--site-muted);
    font-size: 15px;
}

.product-features {
    list-style: none;
    display: grid;
    gap: 10px;
    color: var(--site-primary);
    font-size: 14px;
}

.product-features li::before {
    content: '•';
    color: var(--site-accent);
    margin-right: 8px;
}

.insight-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 8px;
}

.insight-tag {
    grid-column: 1 / -1;
    text-align: center;
    margin-bottom: 8px;
}

.insight-tag .product-tag {
    background: var(--site-accent);
    padding: 6px 12px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    color: #ffffff;
}

.insight-tag .product-tag i {
    font-size: 16px;
    color: #ffffff;
}

.insight-card {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(148, 163, 184, 0.22);
    border-radius: var(--site-radius-sm);
    padding: 18px 20px;
    box-shadow: var(--site-shadow-sm);
    display: grid;
    gap: 6px;
}

.section-alt .insight-card {
    background: #fff;
}

.insight-card-label {
    font-size: 16px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--site-accent);
}

.insight-card p {
    margin: 0;
    font-size: 14px;
    color: var(--site-primary);
}

/***** 联系方式与表单 *****/
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 64px;
    align-items: start;
}

.contact-info,
.contact-info-item {
    display: flex;
    gap: 16px;
    align-items: center;
}

.contact-info-item {
    border-radius: var(--site-radius-sm);
    padding: 18px 20px;
    background: var(--site-surface);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 102, 204, 0.2);
    box-shadow: var(--site-shadow-sm);
}

.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--site-accent);
    background: rgba(37, 99, 235, 0.12);
}

.form-group {
    display: grid;
    gap: 8px;
    margin-bottom: 18px;
}

.form-control {
    padding: 12px 14px;
    border-radius: var(--site-radius-sm);
    border: 1px solid rgba(0, 102, 204, 0.3);
    background: rgba(255, 255, 255, 0.9);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: rgba(0, 102, 204, 0.7);
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

/* 自定义下拉选择框 */
.custom-select-wrapper {
    position: relative;
}

.custom-select {
    padding: 12px 14px;
    border-radius: 16px;
    border: 1px solid rgba(0, 102, 204, 0.3);
    background: rgba(255, 255, 255, 0.9);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.25s ease;
    -webkit-user-select: none;
    user-select: none;
}

.custom-select:hover {
    border-color: rgba(0, 102, 204, 0.5);
    background: rgba(255, 255, 255, 1);
}

.custom-select.active {
    border-color: rgba(0, 102, 204, 0.7);
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1), 0 2px 8px rgba(0, 102, 204, 0.08);
}

.custom-select-text {
    flex: 1;
    color: var(--site-primary);
}

.custom-select-text.placeholder {
    color: var(--site-muted);
}

.custom-select-arrow {
    font-size: 18px;
    color: var(--site-accent);
    transition: transform 0.25s ease;
    margin-left: 12px;
}

.custom-select.active .custom-select-arrow {
    transform: rotate(180deg);
}

.custom-select-options {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: #ffffff;
    border: 1px solid rgba(0, 102, 204, 0.2);
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 51, 102, 0.15);
    list-style: none;
    margin: 0;
    padding: 4px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.25s ease;
    z-index: 1000;
}

.custom-select-options.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.custom-select-option {
    padding: 10px 16px;
    border-radius: 12px;
    cursor: pointer;
    color: var(--site-primary);
    font-size: 14px;
    transition: all 0.2s ease;
    margin: 1px 0;
}

.custom-select-option:hover {
    background: rgba(0, 102, 204, 0.1);
    color: var(--site-accent);
}

.custom-select-option.selected {
    background: rgba(0, 102, 204, 0.15);
    color: var(--site-accent);
    font-weight: 500;
}



.form-group label {
    font-weight: 600;
    font-size: 14px;
    color: var(--site-primary);
}

.form-group label .required-mark {
    color: #ef4444;
    margin-left: 2px;
}

.contact-card {
    margin-top: 32px;
    background: var(--site-surface);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-radius: var(--site-radius-sm);
    padding: 24px;
    box-shadow: var(--site-shadow-sm);
    border: 1px solid rgba(0, 102, 204, 0.2);
}

.contact-card p {
    color: var(--site-muted);
    line-height: 1.8;
}

.contact-card a {
    color: var(--site-accent);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.contact-card a:hover {
    color: #0052a3;
    text-decoration: underline;
}

.contact-card i {
    color: var(--site-accent);
    margin-right: 6px;
}

/***** CTA 区域 *****/
.cta-section {
    background: linear-gradient(135deg, #4a90e2 0%, #0066cc 100%);
    color: #f8fafc;
    border-radius: var(--site-radius-lg);
    padding: 80px 32px;
    text-align: center;
    box-shadow: var(--site-shadow-md);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/website/static/img/layout-cta-bg.jpg') center center / cover no-repeat;
    opacity: 0.15; /* 半透明背景图 */
    pointer-events: none;
    z-index: 0;
}

.cta-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.1), transparent 70%);
    pointer-events: none;
    z-index: 1;
}

.cta-section .section-title {
    color: inherit;
    margin-bottom: 16px;
    position: relative;
    z-index: 2;
}

.cta-section .section-subtitle {
    color: rgba(226, 232, 240, 0.7);
    font-size: 18px;
    margin-bottom: 32px;
    position: relative;
    z-index: 2;
}

.cta-section .hero-actions {
    position: relative;
    z-index: 2;
}

/***** 页脚 *****/
.footer {
    position: relative;
    overflow: hidden;
    border-radius: var(--site-radius-lg) var(--site-radius-lg) 0 0;
    color: rgba(255, 255, 255, 0.85);
    margin-top: 80px;
    padding: 60px 24px 40px;
    /* 主体使用品牌渐变色，保证文字可读性 */
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.96) 0%, rgba(0, 82, 163, 0.98) 100%);
}

.footer::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/website/static/img/layout-footer-bg.jpg') center bottom / cover no-repeat;
    opacity: 0.1; /* 更轻的半透明叠加，减弱图片存在感 */
    pointer-events: none;
    z-index: 0;
}

.footer-container {
    max-width: 1180px;
    margin: 0 auto;
    display: grid;
    gap: 36px;
    position: relative;
    z-index: 1;
}

.footer-brand {
    margin-bottom: 20px;
}

.footer-brand .navbar-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 0;
    border-radius: 0;
    background: transparent;
    border: none;
    box-shadow: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    position: relative;
}

.footer-brand .navbar-logo::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -6px;
    width: 100%;
    height: 2px;
    border-radius: 999px;
    background: #E5E7EB; /* 与 logo 和文字一致的接近白色的灰色 */
    opacity: 0.85;
}

.footer-brand .navbar-logo-text-p {
    color: #E5E7EB; /* 接近白色的灰色 */
}

.footer-brand .navbar-logo-text-d {
    color: #E5E7EB; /* 接近白色的灰色，与 footer 整体风格一致 */
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 28px;
}

.footer-section h4 {
    color: #f8fafc;
    margin-bottom: 16px;
    font-size: 16px;
}

.footer-section ul {
    list-style: none;
    display: grid;
    gap: 10px;
    font-size: 14px;
}

.footer-section a:hover {
    color: #b3d9ff;
    transition: color 0.2s ease;
}

.footer-section--left {
    margin-left: -48px;
}

.footer-bottom {
    border-top: 1px solid rgba(148, 163, 184, 0.18);
    padding-top: 20px;
    text-align: center;
    font-size: 13px;
    position: relative;
    z-index: 1;
}

.footer-bottom a {
    color: inherit;
    transition: color 0.2s ease;
}

.footer-bottom a:hover {
    color: #93c5fd;
}

/***** 动画 *****/
.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

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

/***** 响应式 *****/
@media (max-width: 1024px) {
    .navbar-menu {
        display: none;
    }

    .hero {
        padding: 100px 20px 80px;
    }

    .hero-container {
        gap: 48px;
    }
}

@media (max-width: 768px) {
    .navbar-container {
        flex-wrap: wrap;
        gap: 16px;
    }

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

    .hero-insight-card {
        text-align: center;
    }

    .product-showcase {
        grid-template-columns: 1fr;
    }

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

    .section {
        padding: 72px 20px;
    }

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

    .modal {
        padding: 10px;
    }

    .modal-content {
        max-width: 100%;
        max-height: calc(100vh - 20px);
        border-radius: 16px;
    }

    .modal-header {
        padding: 20px 24px;
    }

    .modal-header h2 {
        font-size: 20px;
    }

    .modal-body {
        padding: 24px;
    }

    .modal-body p {
        font-size: 14px;
        line-height: 1.75;
    }
}

/***** 弹框样式 *****/
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.6);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    animation: fadeIn 0.3s ease;
    padding: 20px;
    box-sizing: border-box;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: #ffffff;
    border-radius: 24px;
    max-width: 720px;
    width: 100%;
    max-height: calc(100vh - 40px);
    overflow: hidden;
    box-shadow: 0 32px 80px rgba(0, 0, 0, 0.25), 0 8px 24px rgba(0, 0, 0, 0.15);
    animation: slideUp 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 28px 32px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.15);
    flex-shrink: 0;
    background: linear-gradient(to bottom, #ffffff, #fafbfc);
}

.modal-header h2 {
    font-size: 22px;
    font-weight: 700;
    color: var(--site-primary);
    margin: 0;
    letter-spacing: -0.01em;
}

.modal-close {
    font-size: 28px;
    font-weight: 300;
    color: var(--site-muted);
    cursor: pointer;
    line-height: 1;
    transition: all 0.2s ease;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

.modal-close:hover {
    color: var(--site-primary);
    background-color: rgba(0, 102, 204, 0.08);
}

.modal-body {
    padding: 32px;
    overflow-y: auto;
    flex: 1;
}

.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: transparent;
}

.modal-body::-webkit-scrollbar-thumb {
    background-color: rgba(148, 163, 184, 0.3);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background-color: rgba(148, 163, 184, 0.5);
}

/* Firefox 等支持标准滚动条属性的浏览器 */
@supports (scrollbar-width: thin) {
    .modal-body {
        scrollbar-width: thin;
        scrollbar-color: rgba(148, 163, 184, 0.3) transparent;
    }
}

.modal-body h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--site-primary);
    margin-top: 24px;
    margin-bottom: 12px;
}

.modal-body h3:first-child {
    margin-top: 0;
}

.modal-body p {
    font-size: 15px;
    line-height: 1.85;
    color: #1e293b;
    margin-bottom: 18px;
    text-align: center;
    font-weight: 400;
    letter-spacing: 0.01em;
}

.modal-body p:first-child {
    margin-top: 0;
}

.modal-body p:last-child {
    margin-bottom: 0;
}

/* 联系表单成功弹框内容 */
.contact-success-modal-content {
    text-align: center;
    padding: 20px 0;
}

.contact-success-icon {
    font-size: 64px;
    color: var(--site-success);
    margin-bottom: 20px;
    display: block;
}

.contact-success-title {
    font-size: 20px;
    color: var(--site-primary);
    margin-bottom: 12px;
    margin-top: 0;
}

.contact-success-description {
    color: var(--site-muted);
    font-size: 16px;
    line-height: 1.6;
    margin: 0;
    text-align: center;
    max-width: 100%;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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