/* ========================================
   AI加工官网样式
   ======================================== */

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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #10b981;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --text-color: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-color: #f9fafb;
    --bg-dark: #111827;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   导航栏
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-logo {
    height: 36px;
    width: auto;
    object-fit: contain;
    display: block;
}

.footer-logo .nav-logo {
    filter: brightness(0) invert(1);
    height: 32px;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    transition: color 0.2s;
}

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

.nav-buttons {
    display: flex;
    gap: 12px;
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--bg-dark);
    color: white;
}

.btn-secondary:hover {
    background: #1f2937;
}

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

.btn-success:hover {
    background: #059669;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

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

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

.btn-block {
    width: 100%;
}

/* ========================================
   Hero区域
   ======================================== */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #f0f7ff 0%, #e8f4f8 100%);
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero .highlight {
    color: var(--primary-color);
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

.stat {
    text-align: center;
}

.stat-num {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
}

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

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

.hero-image {
    flex: 0 0 400px;
}

.hero-card {
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.card-header {
    background: var(--primary-color);
    color: white;
    padding: 16px 20px;
    font-weight: 500;
}

.card-body {
    padding: 20px;
}

.demo-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.demo-item .label {
    color: var(--text-secondary);
}

.demo-item .value {
    font-weight: 500;
}

.demo-price {
    margin-top: 20px;
    text-align: center;
    padding: 20px;
    background: #fef3c7;
    border-radius: 8px;
}

.demo-price .price-label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.demo-price .price-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--danger-color);
}

/* ========================================
   对比区域
   ======================================== */
.compare-section {
    padding: 80px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 50px;
}

.compare-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 60px;
}

.compare-card {
    position: relative;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s;
}

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

.compare-card.recommended {
    background: linear-gradient(135deg, #ecfdf5 0%, #f0fdf4 100%);
    border-color: var(--success-color);
}

.card-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-secondary);
    color: white;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 13px;
}

.recommend-badge {
    background: var(--success-color);
}

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

.compare-card h3 {
    font-size: 24px;
    margin-bottom: 8px;
}

.card-desc {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.feature-list {
    list-style: none;
    text-align: left;
    margin-bottom: 24px;
}

.feature-list li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.feature-list li span {
    width: 20px;
    text-align: center;
}

.feature-list .pro span {
    color: var(--success-color);
}

.feature-list .con span {
    color: var(--warning-color);
}

.feature-list .highlight {
    background: #d1fae5;
    margin: 0 -30px;
    padding: 8px 30px;
}

.security-note {
    background: white;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 24px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    text-align: left;
}

.security-note .security-icon {
    font-size: 24px;
}

.security-note p {
    font-size: 13px;
    color: var(--text-secondary);
}

.highlight-note {
    background: #d1fae5;
    border: 1px solid var(--success-color);
}

.highlight-note p {
    color: var(--text-color);
}

/* 对比表格 */
.compare-table-wrapper {
    background: var(--bg-color);
    border-radius: 16px;
    padding: 40px;
}

.compare-table-wrapper h3 {
    text-align: center;
    margin-bottom: 24px;
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
}

.compare-table th,
.compare-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.compare-table th {
    background: white;
    font-weight: 600;
}

.compare-table th:first-child {
    width: 200px;
}

.compare-table td:first-child {
    color: var(--text-secondary);
}

.highlight-cell {
    background: #ecfdf5;
    color: var(--success-color);
    font-weight: 500;
}

/* ========================================
   平台优势
   ======================================== */
.features-section {
    padding: 80px 0;
    background: var(--bg-color);
}

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

.feature-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    transition: all 0.2s;
}

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

.feature-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ========================================
   服务流程
   ======================================== */
.process-section {
    padding: 80px 0;
    background: white;
}

.process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.step {
    text-align: center;
    flex: 0 0 200px;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto 16px;
}

.step-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.step h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.step p {
    font-size: 14px;
    color: var(--text-secondary);
}

.step-arrow {
    font-size: 24px;
    color: var(--text-light);
}

/* ========================================
   在线询价
   ======================================== */
.quote-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #1e3a5f 0%, #2d4a6f 100%);
    color: white;
}

.quote-section .section-title {
    color: white;
}

.quote-section .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

.quote-container {
    max-width: 700px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    padding: 30px;
    color: var(--text-color);
}

.quote-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
}

.tab-btn {
    flex: 1;
    padding: 12px;
    border: 2px solid var(--border-color);
    background: transparent;
    border-radius: 8px;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.2s;
}

.tab-btn.active {
    border-color: var(--primary-color);
    background: #eff6ff;
    color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 50px 30px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: #f8fafc;
}

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

.upload-hint {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 8px;
}

.upload-note {
    margin-top: 20px;
    padding: 16px;
    background: #fef3c7;
    border-radius: 8px;
    text-align: center;
}

.upload-note a {
    color: var(--primary-color);
}

/* 表单 */
.quote-form .form-row {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.quote-form .form-group {
    flex: 1;
}

.quote-form .form-group.full {
    flex: 1 0 100%;
}

.quote-form label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 6px;
}

.quote-form input,
.quote-form select,
.quote-form textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
}

.quote-form input:focus,
.quote-form select:focus,
.quote-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.size-inputs {
    display: flex;
    align-items: center;
    gap: 8px;
}

.size-inputs input {
    flex: 1;
    text-align: center;
}

.size-inputs span {
    color: var(--text-secondary);
}

/* 报价结果 */
.quote-result {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.confidence {
    font-size: 14px;
    color: var(--text-secondary);
}

.result-price {
    text-align: center;
    margin-bottom: 24px;
}

.price-main {
    margin-bottom: 12px;
}

.price-main .price-label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
}

.price-main .price-value {
    font-size: 48px;
    font-weight: 700;
    color: var(--danger-color);
}

.price-unit {
    display: flex;
    justify-content: center;
    gap: 24px;
    color: var(--text-secondary);
}

.result-breakdown {
    background: var(--bg-color);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 16px;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.breakdown-item:last-child {
    border-bottom: none;
}

.result-note {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.result-actions {
    display: flex;
    gap: 12px;
}

.result-actions .btn {
    flex: 1;
}

/* ========================================
   下载区域
   ======================================== */
.download-section {
    padding: 80px 0;
    background: var(--bg-color);
}

.download-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.download-info {
    flex: 1;
}

.download-info h2 {
    font-size: 36px;
    margin-bottom: 12px;
}

.download-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.download-features {
    margin-bottom: 32px;
}

.download-feature {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
}

.download-feature .feature-icon {
    font-size: 28px;
}

.download-feature h4 {
    margin-bottom: 4px;
}

.download-feature p {
    font-size: 14px;
    color: var(--text-secondary);
}

.download-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: var(--bg-dark);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.2s;
}

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

.download-btn .btn-icon {
    font-size: 32px;
}

.download-btn .btn-title {
    display: block;
    font-size: 16px;
    font-weight: 600;
}

.download-btn .btn-desc {
    font-size: 12px;
    opacity: 0.7;
}

.download-version {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 预览窗口 */
.download-preview {
    flex: 0 0 400px;
}

.preview-window {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.preview-header {
    background: var(--bg-color);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.preview-header .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.preview-title {
    margin-left: auto;
    font-size: 13px;
    color: var(--text-secondary);
}

.preview-body {
    display: flex;
    min-height: 250px;
}

.preview-sidebar {
    width: 140px;
    background: #f8fafc;
    padding: 16px 12px;
    border-right: 1px solid var(--border-color);
}

.preview-menu {
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 13px;
    margin-bottom: 4px;
    cursor: default;
}

.preview-menu.active {
    background: #eff6ff;
    color: var(--primary-color);
}

.preview-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.preview-card {
    text-align: center;
    padding: 30px;
    background: #ecfdf5;
    border-radius: 12px;
}

.preview-card .preview-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.preview-card p {
    font-size: 14px;
    color: var(--success-color);
    font-weight: 500;
}

/* ========================================
   联系我们
   ======================================== */
.contact-section {
    padding: 80px 0;
    background: white;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.contact-card {
    text-align: center;
    padding: 40px 30px;
    background: var(--bg-color);
    border-radius: 12px;
}

.contact-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.contact-card h3 {
    margin-bottom: 12px;
}

.contact-card p {
    font-size: 18px;
    font-weight: 500;
}

.contact-time {
    font-size: 13px !important;
    color: var(--text-secondary);
    font-weight: 400 !important;
    margin-top: 4px;
}

.qr-placeholder {
    width: 120px;
    height: 120px;
    background: white;
    border: 1px solid var(--border-color);
    margin: 12px auto 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 13px;
}

.qr-code {
    width: 120px;
    height: 120px;
    margin: 12px auto 0;
    border-radius: 8px;
    object-fit: contain;
}

/* ========================================
   页脚
   ======================================== */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
}

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

.footer-brand .logo-text {
    color: white;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 80px;
}

.footer-column h4 {
    margin-bottom: 16px;
    font-size: 15px;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 14px;
    margin-bottom: 10px;
    transition: color 0.2s;
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

/* ========================================
   弹窗
   ======================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 12px;
    width: 420px;
    max-width: 90%;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 18px;
}

.close-btn {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
}

.modal-body {
    padding: 24px;
}

.modal-body p {
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.modal-body .form-group {
    margin-bottom: 16px;
}

.modal-body label {
    display: block;
    font-size: 14px;
    margin-bottom: 6px;
}

.modal-body input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-dark);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 3000;
}

.toast.show {
    opacity: 1;
}

/* ========================================
   内测申请弹窗
   ======================================== */
#betaModal .beta-tip {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
    font-size: 14px;
}

#betaModal .required {
    color: #e74c3c;
    margin-left: 2px;
}

#betaModal select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    background: white;
    cursor: pointer;
}

#betaModal select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

#betaModal .btn-full {
    width: 100%;
    margin-top: 10px;
}

#betaModal input:focus,
#betaModal select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ========================================
   供应商入驻
   ======================================== */
.supplier-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.supplier-content {
    display: flex;
    gap: 50px;
    margin-bottom: 60px;
}

.supplier-info {
    flex: 1;
}

.supplier-info h2 {
    font-size: 36px;
    margin-bottom: 12px;
    color: var(--text-color);
}

.supplier-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.supplier-benefits {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.benefit-item {
    display: flex;
    gap: 12px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 10px;
}

.benefit-icon {
    font-size: 28px;
    flex-shrink: 0;
}

.benefit-text h4 {
    font-size: 15px;
    margin-bottom: 4px;
}

.benefit-text p {
    font-size: 13px;
    color: var(--text-secondary);
}

.supplier-form-wrapper {
    flex: 0 0 420px;
}

.form-card {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow-lg);
}

.form-card h3 {
    font-size: 20px;
    margin-bottom: 8px;
    text-align: center;
}

.form-card > p {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
}

.supplier-form .form-group {
    margin-bottom: 16px;
}

.supplier-form label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 6px;
}

.supplier-form label .required {
    color: var(--danger-color);
}

.supplier-form input,
.supplier-form textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s;
}

.supplier-form input:focus,
.supplier-form textarea:focus {
    outline: none;
    border-color: var(--warning-color);
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: var(--bg-color);
    border-radius: 20px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.checkbox-item:hover {
    background: #fef3c7;
}

.checkbox-item input {
    width: auto;
    margin: 0;
}

.checkbox-item input:checked + span {
    color: var(--warning-color);
    font-weight: 500;
}

.form-tip {
    text-align: center;
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

/* Warning按钮 */
.btn-warning {
    background: var(--warning-color);
    color: white;
}

.btn-warning:hover {
    background: #d97706;
}

/* 入驻流程 */
.join-process {
    background: white;
    border-radius: 16px;
    padding: 40px;
    margin-bottom: 40px;
}

.join-process h3 {
    text-align: center;
    font-size: 20px;
    margin-bottom: 30px;
}

.join-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

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

.join-step-num {
    width: 40px;
    height: 40px;
    background: var(--warning-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
}

.join-step-text h4 {
    font-size: 15px;
    margin-bottom: 2px;
}

.join-step-text p {
    font-size: 13px;
    color: var(--text-secondary);
}

.join-step-arrow {
    font-size: 20px;
    color: var(--text-light);
}

/* 常见问题 */
.supplier-faq {
    background: white;
    border-radius: 16px;
    padding: 40px;
}

.supplier-faq h3 {
    text-align: center;
    font-size: 20px;
    margin-bottom: 30px;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 8px;
    color: var(--text-color);
}

.faq-question::before {
    content: "Q: ";
    color: var(--warning-color);
}

.faq-answer {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.faq-answer::before {
    content: "A: ";
    color: var(--primary-color);
    font-weight: 500;
}

/* ========================================
   响应式
   ======================================== */
@media (max-width: 1024px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }

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

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

    .hero-image {
        flex: none;
        width: 100%;
        max-width: 400px;
    }

    .compare-cards {
        grid-template-columns: 1fr;
    }

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

    .download-content {
        flex-direction: column;
        text-align: center;
    }

    .download-preview {
        flex: none;
        width: 100%;
        max-width: 400px;
    }

    .supplier-content {
        flex-direction: column;
    }

    .supplier-form-wrapper {
        flex: none;
        width: 100%;
    }

    .supplier-benefits {
        grid-template-columns: 1fr;
    }

    .join-steps {
        flex-direction: column;
        gap: 16px;
    }

    .join-step-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-buttons {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .hero-buttons {
        flex-direction: column;
    }

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

    .process-steps {
        flex-direction: column;
    }

    .step-arrow {
        transform: rotate(90deg);
    }

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

    .footer-content {
        flex-direction: column;
        gap: 40px;
    }

    .footer-links {
        flex-wrap: wrap;
        gap: 40px;
    }

    .download-buttons {
        flex-direction: column;
    }

    .quote-form .form-row {
        flex-direction: column;
    }

    .compare-table-wrapper {
        overflow-x: auto;
    }

    .compare-table {
        min-width: 600px;
    }
}

/* ========================================
   供应商入驻页面专属样式
   ======================================== */

/* 供应商Hero */
.supplier-hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 50%, #fcd34d 100%);
    text-align: center;
}

.supplier-hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: #1f2937;
}

.supplier-hero-content .highlight {
    color: #d97706;
}

.supplier-hero .hero-subtitle {
    font-size: 20px;
    color: #4b5563;
    margin-bottom: 40px;
    line-height: 1.8;
}

.supplier-hero .hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 40px;
}

.supplier-hero .stat {
    text-align: center;
}

.supplier-hero .stat-num {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: #b45309;
}

.supplier-hero .stat-label {
    font-size: 14px;
    color: #6b7280;
}

/* 入驻优势 */
.benefits-section {
    padding: 80px 0;
    background: #fff;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.benefit-card {
    background: #f9fafb;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.benefit-card .benefit-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.benefit-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #1f2937;
}

.benefit-card p {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.7;
}

/* 平台数据 */
.platform-data {
    padding: 60px 0;
    background: linear-gradient(135deg, #1f2937 0%, #374151 100%);
}

.data-grid {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 40px;
}

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

.data-num {
    font-size: 42px;
    font-weight: 700;
    color: #fcd34d;
}

.data-label {
    font-size: 14px;
    color: #9ca3af;
    margin-top: 5px;
}

/* 入驻条件 */
.requirements-section {
    padding: 80px 0;
    background: #fff;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.requirement-item {
    text-align: center;
    padding: 30px 20px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.requirement-icon {
    font-size: 42px;
    margin-bottom: 15px;
}

.requirement-item h4 {
    font-size: 16px;
    margin-bottom: 10px;
    color: #1f2937;
}

.requirement-item p {
    font-size: 13px;
    color: #6b7280;
    line-height: 1.6;
}

.requirement-note {
    margin-top: 30px;
    padding: 20px;
    background: #fffbeb;
    border-radius: 8px;
    border-left: 4px solid #f59e0b;
}

.requirement-note p {
    color: #92400e;
    font-size: 14px;
}

/* 费用说明 */
.pricing-section {
    padding: 80px 0;
    background: #f9fafb;
}

.pricing-table-wrapper {
    max-width: 800px;
    margin: 50px auto 0;
}

.pricing-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.pricing-table th,
.pricing-table td {
    padding: 18px 24px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.pricing-table th {
    background: #1f2937;
    color: #fff;
    font-weight: 600;
}

.pricing-table td.free {
    color: #10b981;
    font-weight: 700;
    font-size: 18px;
}

.pricing-table tr:last-child td {
    border-bottom: none;
}

.pricing-table tr:hover td {
    background: #f9fafb;
}

/* 申请表单区域 */
.apply-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.apply-form-wrapper {
    max-width: 700px;
    margin: 50px auto 0;
    background: #fff;
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.apply-form .form-section {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.apply-form .form-section:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.apply-form .form-section h3 {
    font-size: 18px;
    color: #1f2937;
    margin-bottom: 20px;
    padding-left: 12px;
    border-left: 4px solid #f59e0b;
}

.apply-form .form-row {
    margin-bottom: 20px;
}

.apply-form .form-row.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.apply-form .form-group {
    margin-bottom: 15px;
}

.apply-form .form-group label {
    display: block;
    font-size: 14px;
    color: #374151;
    margin-bottom: 8px;
    font-weight: 500;
}

.apply-form .form-group input,
.apply-form .form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    transition: border-color 0.2s;
}

.apply-form .form-group input:focus,
.apply-form .form-group textarea:focus {
    outline: none;
    border-color: #f59e0b;
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

.apply-form .checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.apply-form .checkbox-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 14px;
}

.apply-form .checkbox-item:hover {
    border-color: #f59e0b;
}

.apply-form .checkbox-item input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.apply-form .checkbox-item input[type="checkbox"]:checked + span,
.apply-form .checkbox-item:has(input:checked) {
    background: #fef3c7;
    border-color: #f59e0b;
}

.form-submit {
    text-align: center;
    margin-top: 30px;
}

.form-submit .form-tip {
    margin-top: 15px;
    font-size: 13px;
    color: #6b7280;
}

/* FAQ 常见问题 */
.faq-section {
    padding: 80px 0;
    background: #fff;
}

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

.faq-section .faq-item {
    background: #f9fafb;
    border-radius: 12px;
    margin-bottom: 15px;
    overflow: hidden;
}

.faq-section .faq-question {
    padding: 20px 24px;
    font-weight: 600;
    color: #1f2937;
    display: flex;
    align-items: center;
    gap: 12px;
}

.faq-section .faq-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: #f59e0b;
    color: #fff;
    border-radius: 50%;
    font-size: 14px;
    font-weight: 700;
}

.faq-section .faq-answer {
    padding: 0 24px 20px 64px;
    color: #6b7280;
    line-height: 1.7;
    font-size: 14px;
}

/* 联系区域 */
.contact-section .contact-box {
    background: #f9fafb;
    border-radius: 16px;
    padding: 40px;
    text-align: center;
}

.contact-section .contact-box h3 {
    font-size: 24px;
    margin-bottom: 30px;
    color: #1f2937;
}

.contact-methods {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.contact-item .contact-icon {
    font-size: 32px;
}

.contact-item .contact-label {
    font-size: 13px;
    color: #6b7280;
}

.contact-item .contact-value {
    font-size: 16px;
    font-weight: 600;
    color: #1f2937;
}

/* 供应商页面响应式 */
@media (max-width: 1024px) {
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .supplier-hero-content h1 {
        font-size: 32px;
    }

    .supplier-hero .hero-stats {
        gap: 30px;
    }

    .supplier-hero .stat-num {
        font-size: 28px;
    }

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

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

    .data-grid {
        justify-content: space-around;
    }

    .data-num {
        font-size: 32px;
    }

    .apply-form-wrapper {
        padding: 25px;
    }

    .apply-form .form-row.two-col {
        grid-template-columns: 1fr;
    }

    .contact-methods {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }

    .pricing-table th,
    .pricing-table td {
        padding: 12px 16px;
        font-size: 14px;
    }
}

/* ========================================
   供应商下载区域样式
   ======================================== */
.supplier-download-section {
    padding: 80px 0;
    background: #fff;
}

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

.download-card {
    background: #f9fafb;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s;
}

.download-card:hover {
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.download-card-header {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

.download-card-header .download-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 15px;
}

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

.download-card-header p {
    font-size: 14px;
    opacity: 0.9;
}

.download-card-body {
    padding: 30px;
}

.download-features {
    list-style: none;
    margin-bottom: 25px;
}

.download-features li {
    padding: 8px 0;
    padding-left: 28px;
    position: relative;
    font-size: 14px;
    color: #4b5563;
}

.download-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

.download-btns {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.download-app-btn {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border-radius: 10px;
    text-decoration: none;
    color: white;
    transition: all 0.2s;
}

.download-app-btn.android {
    background: #3ddc84;
}

.download-app-btn.android:hover {
    background: #32c472;
}

.download-app-btn.ios {
    background: #007aff;
}

.download-app-btn.ios:hover {
    background: #0062cc;
}

.download-app-btn.windows {
    background: #0078d4;
}

.download-app-btn.windows:hover {
    background: #006cbd;
}

.download-app-btn.mac {
    background: #1d1d1f;
}

.download-app-btn.mac:hover {
    background: #333;
}

.download-app-btn .btn-icon {
    font-size: 24px;
}

.download-app-btn .btn-info {
    display: flex;
    flex-direction: column;
}

.download-app-btn .btn-label {
    font-size: 15px;
    font-weight: 600;
}

.download-app-btn .btn-desc {
    font-size: 11px;
    opacity: 0.8;
}

.qr-download {
    text-align: center;
    padding-top: 20px;
    border-top: 1px dashed #e5e7eb;
}

.qr-placeholder {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 120px;
    height: 120px;
    background: #f3f4f6;
    border-radius: 12px;
    color: #9ca3af;
}

.qr-placeholder span {
    font-size: 32px;
    margin-bottom: 8px;
}

.qr-placeholder p {
    font-size: 12px;
}

.download-version {
    text-align: center;
    font-size: 12px;
    color: #9ca3af;
    margin-top: 15px;
}

.download-note {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-top: 40px;
    padding: 20px 25px;
    background: #fffbeb;
    border-radius: 12px;
    border-left: 4px solid #f59e0b;
}

.download-note .note-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.download-note .note-content h4 {
    font-size: 15px;
    color: #92400e;
    margin-bottom: 5px;
}

.download-note .note-content p {
    font-size: 14px;
    color: #78350f;
    line-height: 1.6;
}

.download-note .note-content a {
    color: #d97706;
    text-decoration: underline;
}

/* 下载区域响应式 */
@media (max-width: 768px) {
    .download-grid {
        grid-template-columns: 1fr;
    }

    .download-btns {
        flex-direction: column;
    }

    .download-app-btn {
        justify-content: center;
    }
}

/* ===== 首页差异化对比区域 ===== */
.diff-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.diff-comparison {
    display: flex;
    align-items: stretch;
    gap: 30px;
    margin: 40px 0;
}

.diff-vs {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    color: #78350f;
    flex-shrink: 0;
}

.diff-card {
    flex: 1;
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.diff-card.others {
    border: 2px solid #fca5a5;
}

.diff-card.ours {
    border: 2px solid #10b981;
}

.diff-header {
    padding: 20px 25px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.diff-card.others .diff-header {
    background: #fef2f2;
}

.diff-card.ours .diff-header {
    background: #ecfdf5;
}

.diff-icon {
    font-size: 28px;
}

.diff-header h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 0;
}

.diff-card.others .diff-header h3 {
    color: #991b1b;
}

.diff-card.ours .diff-header h3 {
    color: #065f46;
}

.diff-badge {
    margin-left: auto;
    padding: 4px 12px;
    background: #10b981;
    color: white;
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
}

.diff-body {
    padding: 25px;
}

.diff-list {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
}

.diff-list li {
    padding: 10px 0;
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid #f3f4f6;
}

.diff-list li:last-child {
    border-bottom: none;
}

.diff-list li.con {
    color: #6b7280;
}

.diff-list li.pro {
    color: #1f2937;
}

.diff-list li.pro strong {
    color: #059669;
}

.diff-warning, .diff-highlight {
    padding: 15px;
    border-radius: 8px;
    text-align: center;
}

.diff-warning {
    background: #fef2f2;
    color: #991b1b;
}

.diff-highlight {
    background: #ecfdf5;
    color: #065f46;
}

.diff-highlight strong {
    color: #059669;
}

.diff-cta {
    text-align: center;
    margin-top: 30px;
}

.diff-cta p {
    margin-bottom: 20px;
    font-size: 16px;
    color: #78350f;
}

@media (max-width: 768px) {
    .diff-comparison {
        flex-direction: column;
    }

    .diff-vs {
        padding: 10px 0;
    }
}

/* ===== 客户端核心特性区域 ===== */
.client-features-section {
    padding: 80px 0;
    background: white;
}

.client-feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    margin-top: 40px;
}

.client-feature-card {
    background: #f9fafb;
    border-radius: 16px;
    padding: 30px;
    border: 1px solid #e5e7eb;
    transition: box-shadow 0.2s, transform 0.2s;
}

.client-feature-card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.client-feature-card.main {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    border: 2px solid #10b981;
    text-align: center;
    padding: 40px;
}

.feature-icon-large {
    font-size: 64px;
    margin-bottom: 20px;
}

.feature-icon-medium {
    font-size: 40px;
    margin-bottom: 15px;
}

.client-feature-card h3 {
    font-size: 22px;
    color: #1f2937;
    margin-bottom: 12px;
}

.client-feature-card.main h3 {
    font-size: 28px;
    color: #065f46;
}

.client-feature-card p {
    font-size: 15px;
    color: #6b7280;
    line-height: 1.7;
}

.client-feature-card.main p {
    font-size: 16px;
    color: #047857;
    max-width: 600px;
    margin: 0 auto 20px;
}

.feature-highlight-box {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: white;
    padding: 12px 25px;
    border-radius: 30px;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.2);
}

.highlight-label {
    background: #10b981;
    color: white;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.highlight-text {
    font-size: 15px;
    font-weight: 600;
    color: #065f46;
}

.client-cta {
    text-align: center;
    margin-top: 40px;
}

.client-cta .btn {
    margin-bottom: 10px;
}

.cta-note {
    display: block;
    font-size: 13px;
    color: #9ca3af;
}

@media (max-width: 768px) {
    .client-feature-grid {
        grid-template-columns: 1fr;
    }

    .client-feature-card.main {
        padding: 30px 20px;
    }

    .feature-icon-large {
        font-size: 48px;
    }

    .client-feature-card.main h3 {
        font-size: 22px;
    }

    .feature-highlight-box {
        flex-direction: column;
        gap: 8px;
        padding: 15px 20px;
    }
}

/* ===== 通用页面 Hero ===== */
.page-hero {
    padding: 140px 0 80px;
    text-align: center;
    background: linear-gradient(135deg, #f0f7ff 0%, #e8f4f8 100%);
}

.page-hero h1 {
    font-size: 42px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 15px;
}

.page-hero .hero-subtitle {
    font-size: 18px;
    color: #6b7280;
}

/* ===== 关于我们页面 ===== */
.about-intro {
    padding: 80px 0;
    background: white;
}

.intro-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: start;
}

.intro-text h2 {
    font-size: 32px;
    color: #1f2937;
    margin-bottom: 25px;
}

.intro-lead {
    font-size: 18px;
    color: #374151;
    line-height: 1.8;
    margin-bottom: 20px;
}

.intro-text p {
    font-size: 16px;
    color: #6b7280;
    line-height: 1.8;
    margin-bottom: 15px;
}

.company-card {
    background: #f9fafb;
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    border: 1px solid #e5e7eb;
}

.company-card .card-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.company-card h3 {
    font-size: 18px;
    color: #1f2937;
    margin-bottom: 8px;
}

.company-type {
    font-size: 14px;
    color: #10b981;
    font-weight: 600;
    margin-bottom: 20px;
}

.company-info .info-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid #e5e7eb;
}

.company-info .info-item:last-child {
    border-bottom: none;
}

.company-info .label {
    color: #6b7280;
    font-size: 14px;
}

.company-info .value {
    color: #1f2937;
    font-weight: 500;
    font-size: 14px;
}

/* 核心价值观 */
.about-values {
    padding: 80px 0;
    background: #f9fafb;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.value-card {
    background: white;
    border-radius: 12px;
    padding: 30px 25px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
}

.value-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.value-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.value-card h3 {
    font-size: 18px;
    color: #1f2937;
    margin-bottom: 10px;
}

.value-card p {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.6;
}

/* 发展历程 */
.about-timeline {
    padding: 80px 0;
    background: white;
}

.timeline {
    max-width: 700px;
    margin: 40px auto 0;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e5e7eb;
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    padding-bottom: 35px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: 12px;
    top: 5px;
    width: 18px;
    height: 18px;
    background: white;
    border: 3px solid #2563eb;
    border-radius: 50%;
}

.timeline-item.current .timeline-dot {
    background: #2563eb;
}

.timeline-date {
    display: inline-block;
    padding: 4px 12px;
    background: #eff6ff;
    color: #2563eb;
    font-size: 13px;
    font-weight: 600;
    border-radius: 4px;
    margin-bottom: 10px;
}

.timeline-content h3 {
    font-size: 18px;
    color: #1f2937;
    margin-bottom: 8px;
}

.timeline-content p {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.6;
}

/* 团队介绍 */
.about-team {
    padding: 80px 0;
    background: #f9fafb;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.team-card {
    background: white;
    border-radius: 12px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.team-avatar {
    font-size: 48px;
    margin-bottom: 15px;
}

.team-card h3 {
    font-size: 18px;
    color: #1f2937;
    margin-bottom: 5px;
}

.team-role {
    font-size: 13px;
    color: #2563eb;
    font-weight: 500;
    margin-bottom: 12px;
}

.team-card p:last-child {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.6;
}

/* 资质荣誉 */
.about-certs {
    padding: 80px 0;
    background: white;
}

.certs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.cert-card {
    text-align: center;
    padding: 25px 20px;
    background: #f9fafb;
    border-radius: 12px;
}

.cert-icon {
    font-size: 36px;
    margin-bottom: 12px;
}

.cert-card h3 {
    font-size: 16px;
    color: #1f2937;
    margin-bottom: 8px;
}

.cert-card p {
    font-size: 13px;
    color: #6b7280;
}

/* 联系信息 */
.about-contact {
    padding: 80px 0;
    background: #f9fafb;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.contact-info-card {
    background: white;
    border-radius: 12px;
    padding: 25px 20px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.info-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.contact-info-card h3 {
    font-size: 15px;
    color: #6b7280;
    margin-bottom: 8px;
}

.contact-info-card p {
    font-size: 16px;
    color: #1f2937;
    font-weight: 500;
}

.info-detail {
    font-size: 13px !important;
    color: #9ca3af !important;
    font-weight: 400 !important;
    margin-top: 5px;
}

/* CTA区域 */
.about-cta, .cases-cta, .cap-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%);
    text-align: center;
}

.about-cta h2, .cases-cta h2, .cap-cta h2 {
    font-size: 32px;
    color: white;
    margin-bottom: 12px;
}

.about-cta p, .cases-cta p, .cap-cta p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.cta-buttons .btn-outline {
    border-color: white;
    color: white;
}

.cta-buttons .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* ===== 客户案例页面 ===== */
.cases-stats {
    padding: 60px 0;
    background: #1f2937;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

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

.stat-number {
    font-size: 42px;
    font-weight: 700;
    color: #2563eb;
}

.stat-label {
    font-size: 15px;
    color: #9ca3af;
    margin-top: 5px;
}

/* 筛选器 */
.cases-filter {
    padding: 30px 0;
    background: #f9fafb;
    position: sticky;
    top: 60px;
    z-index: 10;
}

.filter-tabs {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    padding: 10px 20px;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 25px;
    font-size: 14px;
    color: #6b7280;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn:hover {
    border-color: #2563eb;
    color: #2563eb;
}

.filter-btn.active {
    background: #2563eb;
    border-color: #2563eb;
    color: white;
}

/* 案例列表 */
.cases-list {
    padding: 60px 0;
    background: white;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.case-card {
    background: #f9fafb;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.case-header {
    padding: 15px 20px;
    background: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e5e7eb;
}

.case-industry {
    font-size: 14px;
    font-weight: 500;
    color: #1f2937;
}

.case-badge {
    padding: 4px 10px;
    background: #eff6ff;
    color: #2563eb;
    font-size: 12px;
    font-weight: 500;
    border-radius: 4px;
}

.case-body {
    padding: 25px;
}

.case-body h3 {
    font-size: 18px;
    color: #1f2937;
    margin-bottom: 15px;
}

.case-info {
    margin-bottom: 20px;
}

.case-info .info-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px dashed #e5e7eb;
    font-size: 14px;
}

.case-info .info-row:last-child {
    border-bottom: none;
}

.case-info .label {
    color: #6b7280;
}

.case-info .value {
    color: #1f2937;
    font-weight: 500;
}

.case-result {
    background: #ecfdf5;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 15px;
}

.case-result h4 {
    font-size: 14px;
    color: #065f46;
    margin-bottom: 10px;
}

.case-result ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.case-result li {
    font-size: 13px;
    color: #047857;
    padding: 3px 0;
}

.case-result li::before {
    content: '✓ ';
    color: #10b981;
}

.case-quote {
    background: white;
    border-radius: 8px;
    padding: 15px;
    border-left: 3px solid #2563eb;
}

.case-quote p {
    font-size: 14px;
    color: #4b5563;
    font-style: italic;
    line-height: 1.6;
    margin-bottom: 8px;
}

.quote-author {
    font-size: 13px;
    color: #9ca3af;
}

/* 客户评价 */
.cases-testimonials {
    padding: 80px 0;
    background: #f9fafb;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.testimonial-card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.testimonial-rating {
    font-size: 14px;
    margin-bottom: 15px;
}

.testimonial-text {
    font-size: 15px;
    color: #4b5563;
    line-height: 1.7;
    margin-bottom: 15px;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.author-name {
    font-size: 14px;
    color: #1f2937;
    font-weight: 500;
}

.author-title {
    font-size: 13px;
    color: #9ca3af;
}

/* 行业覆盖 */
.cases-industries {
    padding: 80px 0;
    background: white;
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.industry-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px 10px;
    background: #f9fafb;
    border-radius: 12px;
    transition: background 0.2s;
}

.industry-item:hover {
    background: #eff6ff;
}

.industry-icon {
    font-size: 32px;
    margin-bottom: 10px;
}

.industry-name {
    font-size: 13px;
    color: #4b5563;
}

/* ===== 加工能力页面 ===== */
.cap-overview {
    padding: 60px 0;
    background: #1f2937;
}

.overview-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

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

.overview-number {
    font-size: 42px;
    font-weight: 700;
    color: #2563eb;
}

.overview-label {
    font-size: 15px;
    color: #9ca3af;
    margin-top: 5px;
}

/* 加工工艺 */
.cap-processes {
    padding: 80px 0;
    background: white;
}

.processes-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.process-card {
    background: #f9fafb;
    border-radius: 16px;
    padding: 25px;
    border: 1px solid #e5e7eb;
    transition: box-shadow 0.2s;
}

.process-card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.process-icon {
    font-size: 36px;
    margin-bottom: 12px;
}

.process-card h3 {
    font-size: 20px;
    color: #1f2937;
    margin-bottom: 8px;
}

.process-desc {
    font-size: 14px;
    color: #6b7280;
    margin-bottom: 20px;
}

.process-specs {
    background: white;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 15px;
}

.spec-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid #f3f4f6;
    font-size: 13px;
}

.spec-item:last-child {
    border-bottom: none;
}

.spec-label {
    color: #6b7280;
}

.spec-value {
    color: #1f2937;
    font-weight: 500;
}

.process-applications {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.process-applications .tag {
    padding: 4px 10px;
    background: #eff6ff;
    color: #2563eb;
    font-size: 12px;
    border-radius: 4px;
}

/* 材料能力 */
.cap-materials {
    padding: 80px 0;
    background: #f9fafb;
}

.materials-categories {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.material-category {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.material-category h3 {
    font-size: 18px;
    color: #1f2937;
    margin-bottom: 15px;
}

.material-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.material-tag {
    padding: 6px 12px;
    background: #f3f4f6;
    color: #4b5563;
    font-size: 13px;
    border-radius: 6px;
    transition: background 0.2s;
}

.material-tag:hover {
    background: #e5e7eb;
}

/* 表面处理 */
.cap-surface {
    padding: 80px 0;
    background: white;
}

.surface-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.surface-card {
    background: #f9fafb;
    border-radius: 12px;
    padding: 25px;
}

.surface-card h3 {
    font-size: 18px;
    color: #1f2937;
    margin-bottom: 10px;
}

.surface-card > p {
    font-size: 14px;
    color: #6b7280;
    margin-bottom: 15px;
}

.surface-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.surface-card li {
    font-size: 13px;
    color: #4b5563;
    padding: 5px 0;
    padding-left: 15px;
    position: relative;
}

.surface-card li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #2563eb;
}

/* 精度等级 */
.cap-tolerance {
    padding: 80px 0;
    background: #f9fafb;
}

.tolerance-table-wrapper {
    max-width: 900px;
    margin: 40px auto 0;
    overflow-x: auto;
}

.tolerance-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.tolerance-table th, .tolerance-table td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}

.tolerance-table th {
    background: #f9fafb;
    font-weight: 600;
    color: #1f2937;
    font-size: 14px;
}

.tolerance-table td {
    font-size: 14px;
    color: #4b5563;
}

.tolerance-table tr:last-child td {
    border-bottom: none;
}

.level-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
}

.level-5 {
    background: #fef3c7;
    color: #92400e;
}

.level-6 {
    background: #dbeafe;
    color: #1e40af;
}

.level-7 {
    background: #d1fae5;
    color: #065f46;
}

.level-8 {
    background: #f3f4f6;
    color: #4b5563;
}

/* 质量保障 */
.cap-quality {
    padding: 80px 0;
    background: white;
}

.quality-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.quality-card {
    text-align: center;
    padding: 30px 20px;
    background: #f9fafb;
    border-radius: 12px;
}

.quality-icon {
    font-size: 36px;
    margin-bottom: 15px;
}

.quality-card h3 {
    font-size: 16px;
    color: #1f2937;
    margin-bottom: 10px;
}

.quality-card p {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.6;
}

/* ===== 法律法规页面 ===== */
.legal-hero {
    background: linear-gradient(135deg, #1f2937 0%, #374151 100%);
}

.legal-hero h1, .legal-hero .hero-subtitle {
    color: white;
}

.legal-hero .hero-subtitle {
    opacity: 0.8;
}

.legal-nav {
    background: white;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 60px;
    z-index: 10;
}

.legal-tabs {
    display: flex;
    gap: 5px;
    padding: 15px 0;
}

.legal-tab {
    padding: 10px 20px;
    font-size: 14px;
    color: #6b7280;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.2s;
}

.legal-tab:hover {
    background: #f3f4f6;
    color: #1f2937;
}

.legal-tab.active {
    background: #2563eb;
    color: white;
}

.legal-content {
    padding: 60px 0;
    background: #f9fafb;
}

.legal-section {
    background: white;
    border-radius: 16px;
    padding: 40px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.legal-section h2 {
    font-size: 28px;
    color: #1f2937;
    margin-bottom: 10px;
}

.legal-update {
    font-size: 13px;
    color: #9ca3af;
    margin-bottom: 30px;
}

.legal-text h3 {
    font-size: 18px;
    color: #1f2937;
    margin: 30px 0 15px;
    padding-top: 20px;
    border-top: 1px solid #e5e7eb;
}

.legal-text h3:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.legal-text h4 {
    font-size: 15px;
    color: #374151;
    margin: 20px 0 10px;
}

.legal-text p {
    font-size: 15px;
    color: #4b5563;
    line-height: 1.8;
    margin-bottom: 15px;
}

.legal-text ol, .legal-text ul {
    margin: 15px 0;
    padding-left: 25px;
}

.legal-text li {
    font-size: 15px;
    color: #4b5563;
    line-height: 1.8;
    margin-bottom: 10px;
}

.legal-highlight {
    background: #eff6ff;
    border-radius: 12px;
    padding: 25px;
    margin: 20px 0;
    border-left: 4px solid #2563eb;
}

.legal-highlight h4 {
    color: #1e40af;
    margin-top: 0;
}

.legal-highlight p, .legal-highlight li {
    color: #1e3a8a;
}

.legal-highlight ul {
    margin-bottom: 0;
}

.legal-contact {
    padding: 60px 0;
    background: white;
}

.legal-contact h2 {
    text-align: center;
    font-size: 24px;
    color: #1f2937;
    margin-bottom: 30px;
}

.legal-contact-info {
    max-width: 600px;
    margin: 0 auto;
    background: #f9fafb;
    border-radius: 12px;
    padding: 30px;
}

.legal-contact-info .contact-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid #e5e7eb;
}

.legal-contact-info .contact-item:last-child {
    border-bottom: none;
}

.legal-contact-info .contact-label {
    color: #6b7280;
    font-size: 14px;
}

.legal-contact-info .contact-value {
    color: #1f2937;
    font-weight: 500;
    font-size: 14px;
}

/* ===== 响应式适配 ===== */
@media (max-width: 1024px) {
    .intro-content {
        grid-template-columns: 1fr;
    }

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

    .processes-grid, .materials-categories {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 768px) {
    .page-hero h1 {
        font-size: 32px;
    }

    .values-grid, .team-grid, .certs-grid, .contact-info-grid,
    .stats-grid, .overview-stats, .testimonials-grid,
    .surface-grid, .quality-grid {
        grid-template-columns: 1fr;
    }

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

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

    .legal-tabs {
        flex-wrap: wrap;
    }

    .legal-section {
        padding: 25px;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .filter-tabs {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 10px;
    }
}

/* ===== 首页AI智能引擎区域 ===== */
.ai-engine-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.ai-feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.ai-feature-card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    display: flex;
    gap: 15px;
    border: 1px solid #e5e7eb;
    transition: all 0.2s;
}

.ai-feature-card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.ai-feature-card.featured {
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    border: 2px solid #10b981;
}

.ai-feature-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.ai-feature-content h3 {
    font-size: 16px;
    color: #1f2937;
    margin-bottom: 8px;
}

.ai-feature-content p {
    font-size: 13px;
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 10px;
}

.ai-feature-tag {
    display: inline-block;
    padding: 3px 8px;
    background: #2563eb;
    color: white;
    font-size: 11px;
    border-radius: 4px;
}

.ai-feature-card.featured .ai-feature-tag {
    background: #059669;
}

.ai-engine-cta {
    text-align: center;
    margin-top: 40px;
    display: flex;
    gap: 15px;
    justify-content: center;
}

@media (max-width: 1024px) {
    .ai-feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .ai-feature-grid {
        grid-template-columns: 1fr;
    }

    .ai-engine-cta {
        flex-direction: column;
    }
}

/* ===== AI能力详情页 ===== */
.ai-hero {
    background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%);
    padding: 140px 0 80px;
}

.ai-hero h1, .ai-hero .hero-subtitle {
    color: white;
}

.ai-hero .hero-subtitle {
    opacity: 0.9;
}

.hero-stats-inline {
    display: flex;
    gap: 40px;
    justify-content: center;
    margin-top: 30px;
}

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

.stat-inline .stat-num {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: #fbbf24;
}

.stat-inline .stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

/* AI能力概览 */
.ai-overview {
    padding: 40px 0;
    background: #1f2937;
}

.ai-overview-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 15px;
}

.ai-overview-card {
    text-align: center;
    padding: 15px 10px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    transition: background 0.2s;
}

.ai-overview-card:hover {
    background: rgba(255, 255, 255, 0.15);
}

.overview-icon {
    display: block;
    font-size: 24px;
    margin-bottom: 8px;
}

.overview-text {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.9);
}

/* AI功能详情区域 */
.ai-detail-section {
    padding: 80px 0;
    background: white;
}

.ai-detail-section.alt {
    background: #f9fafb;
}

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

.ai-detail-content.reverse {
    direction: rtl;
}

.ai-detail-content.reverse > * {
    direction: ltr;
}

.ai-detail-tag {
    display: inline-block;
    padding: 4px 12px;
    background: #2563eb;
    color: white;
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
    margin-bottom: 15px;
}

.ai-detail-info h2 {
    font-size: 28px;
    color: #1f2937;
    margin-bottom: 15px;
}

.ai-detail-lead {
    font-size: 18px;
    color: #374151;
    font-weight: 500;
    margin-bottom: 15px;
}

.ai-detail-info > p {
    font-size: 15px;
    color: #6b7280;
    line-height: 1.8;
    margin-bottom: 20px;
}

.ai-detail-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ai-detail-list li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    font-size: 14px;
    color: #4b5563;
}

.ai-detail-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: 600;
}

/* 安全流程图 */
.security-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    background: #f9fafb;
    padding: 30px;
    border-radius: 12px;
}

.flow-step {
    text-align: center;
    padding: 15px;
    background: white;
    border-radius: 8px;
    min-width: 80px;
}

.flow-step.highlight {
    background: #ecfdf5;
    border: 2px solid #10b981;
}

.flow-icon {
    display: block;
    font-size: 28px;
    margin-bottom: 8px;
}

.flow-label {
    font-size: 12px;
    color: #4b5563;
}

.flow-arrow {
    font-size: 20px;
    color: #9ca3af;
}

.flow-note {
    text-align: center;
    margin-top: 15px;
    font-size: 13px;
    color: #6b7280;
}

/* 多语言网格 */
.lang-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-top: 20px;
}

.lang-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px;
    background: #f3f4f6;
    border-radius: 6px;
}

.lang-flag {
    font-size: 20px;
}

.lang-name {
    font-size: 13px;
    color: #4b5563;
}

/* 多语言演示 */
.multilang-demo {
    background: #f9fafb;
    border-radius: 12px;
    padding: 25px;
}

.demo-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

.demo-header {
    background: #1f2937;
    color: white;
    padding: 12px 15px;
    font-size: 14px;
    font-weight: 500;
}

.demo-content {
    padding: 15px;
    background: #fef3c7;
}

.demo-original {
    font-size: 13px;
    color: #78350f;
    margin: 5px 0;
    font-family: monospace;
}

.demo-arrow {
    text-align: center;
    padding: 10px;
    color: #2563eb;
    font-size: 13px;
    font-weight: 600;
}

.demo-result {
    padding: 15px;
    background: #ecfdf5;
}

.demo-result p {
    font-size: 13px;
    color: #065f46;
    margin: 5px 0;
}

/* 材料映射演示 */
.material-mapping-demo {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.mapping-card {
    display: flex;
    align-items: center;
    gap: 15px;
    background: white;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.mapping-source, .mapping-target {
    display: flex;
    align-items: center;
    gap: 8px;
}

.mapping-flag {
    font-size: 20px;
}

.mapping-std {
    font-size: 11px;
    color: #6b7280;
    background: #f3f4f6;
    padding: 2px 6px;
    border-radius: 3px;
}

.mapping-name {
    font-size: 14px;
    font-weight: 600;
    color: #1f2937;
}

.mapping-arrow {
    flex: 1;
    text-align: center;
    color: #2563eb;
}

.mapping-arrow span:first-child {
    font-size: 11px;
    display: block;
}

.mapping-arrow .arrow {
    font-size: 18px;
}

/* 订单拆分演示 */
.order-split-demo {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.split-input {
    text-align: center;
    margin-bottom: 15px;
}

.split-box {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 30px;
    background: #fef3c7;
    border-radius: 8px;
}

.split-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.split-label {
    font-size: 14px;
    font-weight: 600;
    color: #92400e;
}

.split-count {
    font-size: 12px;
    color: #78350f;
}

.split-arrow {
    text-align: center;
    padding: 10px;
    color: #2563eb;
    font-size: 13px;
    font-weight: 600;
}

.split-output {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.split-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: #ecfdf5;
    border-radius: 6px;
}

.item-icon {
    font-size: 20px;
}

.item-label {
    font-size: 13px;
    font-weight: 500;
    color: #065f46;
}

.item-count {
    font-size: 11px;
    color: #047857;
    margin-left: auto;
}

.split-result {
    text-align: center;
    margin-top: 15px;
    padding: 10px;
    background: #dbeafe;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    color: #1e40af;
}

/* 设计检查演示 */
.design-check-demo {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.check-item {
    display: flex;
    gap: 15px;
    padding: 15px;
    border-radius: 8px;
}

.check-item.warning {
    background: #fef3c7;
}

.check-item.info {
    background: #dbeafe;
}

.check-item.success {
    background: #ecfdf5;
}

.check-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.check-content {
    flex: 1;
}

.check-title {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 4px;
}

.check-desc {
    display: block;
    font-size: 13px;
    color: #4b5563;
    margin-bottom: 6px;
}

.check-save {
    display: inline-block;
    font-size: 12px;
    padding: 2px 8px;
    background: #10b981;
    color: white;
    border-radius: 4px;
}

/* 检验表演示 */
.inspection-demo {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.inspection-table {
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    overflow: hidden;
}

.table-header {
    background: #1f2937;
    color: white;
    padding: 12px 15px;
    font-size: 14px;
    font-weight: 600;
}

.table-row {
    display: grid;
    grid-template-columns: 50px 1fr 80px 80px;
    padding: 10px 15px;
    font-size: 13px;
    border-bottom: 1px solid #e5e7eb;
}

.table-row:last-child {
    border-bottom: none;
}

.table-row.header-row {
    background: #f9fafb;
    font-weight: 600;
    color: #374151;
}

.table-row span {
    color: #4b5563;
}

.inspection-note {
    display: block;
    text-align: center;
    margin-top: 15px;
    font-size: 13px;
    color: #2563eb;
    font-weight: 500;
}

/* 更多功能区域 */
.ai-more-features {
    padding: 80px 0;
    background: #f9fafb;
}

.more-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.more-feature-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.more-feature-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.more-feature-card h3 {
    font-size: 18px;
    color: #1f2937;
    margin-bottom: 12px;
}

.more-feature-card p {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.7;
}

/* AI CTA */
.ai-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%);
    text-align: center;
}

.ai-cta h2 {
    font-size: 32px;
    color: white;
    margin-bottom: 12px;
}

.ai-cta p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 30px;
}

/* AI页面响应式 */
@media (max-width: 1024px) {
    .ai-overview-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .ai-detail-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .ai-detail-content.reverse {
        direction: ltr;
    }

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

@media (max-width: 768px) {
    .hero-stats-inline {
        flex-wrap: wrap;
        gap: 20px;
    }

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

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

    .split-output {
        grid-template-columns: 1fr;
    }

    .table-row {
        grid-template-columns: 40px 1fr 60px 60px;
        font-size: 12px;
    }
}