/* ==================== 基础重置与变量 ==================== */
:root {
    /* 色彩体系 */
    --color-canvas: #fbfbfc;
    --color-white: #ffffff;
    --color-light-gray: #f0f2f5;
    --color-primary-text: #1a1f2e;
    --color-secondary-text: #5f6368;
    --color-border: #e8eaed;
    --color-accent: #ec652b;
    --color-accent-hover: #d95a24;
    --color-light-blue: #e8f0fe;
    --color-light-green: #e6f4ea;
    --color-footer: #1a1f2e;
    
    /* 字体 */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Roboto Mono', monospace;
    
    /* 阴影 */
    --shadow-card: rgba(0,0,0,0.04) 0px 2px 8px;
    --shadow-card-hover: rgba(0,0,0,0.08) 0px 2px 12px;
    
    /* 圆角 */
    --radius-card: 8px;
    --radius-tag: 4px;
    
    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 48px;
    --spacing-xxl: 80px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-primary-text);
    background-color: var(--color-canvas);
    background-image: radial-gradient(circle, rgba(0,0,0,0.03) 1px, transparent 1px);
    background-size: 12px 12px;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease-out;
}

ul {
    list-style: none;
}

/* ==================== 按钮样式 ==================== */
.btn-primary {
    display: inline-block;
    background-color: var(--color-accent);
    color: var(--color-white);
    padding: 12px 24px;
    border-radius: var(--radius-card);
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease-out;
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-1px);
}

.btn-outline {
    display: inline-block;
    background-color: transparent;
    color: var(--color-accent);
    padding: 12px 24px;
    border-radius: var(--radius-card);
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--color-accent);
    cursor: pointer;
    transition: all 0.2s ease-out;
}

.btn-outline:hover {
    background-color: rgba(236, 101, 43, 0.05);
}

.btn-secondary {
    display: inline-block;
    color: var(--color-accent);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    transition: color 0.2s ease-out;
}

.btn-secondary:hover {
    color: var(--color-accent-hover);
}

/* ==================== 导航栏 ==================== */
.navbar {
    position: sticky;
    top: 0;
    background-color: var(--color-canvas);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary-text);
}

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-link {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-secondary-text);
    padding: 8px 16px;
    border-radius: var(--radius-card);
    position: relative;
    transition: all 0.2s ease-out;
}

.nav-link:hover {
    color: var(--color-primary-text);
    background-color: rgba(26, 31, 46, 0.04);
}

.nav-link.active {
    color: var(--color-primary-text);
    font-weight: 500;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background-color: var(--color-accent);
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 20px;
    height: 2px;
    background-color: var(--color-primary-text);
    transition: all 0.2s ease-out;
}

/* ==================== Hero区域 ==================== */
.hero {
    padding: var(--spacing-xxl) 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 55% 45%;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.industry-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-secondary-text);
}

.tag-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: #145aff;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.5px;
    color: var(--color-primary-text);
}

.hero-subtitle {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-secondary-text);
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-top: var(--spacing-md);
}

.hero-panel {
    background-color: var(--color-white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: var(--spacing-lg);
}

.data-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

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

.data-number {
    font-family: var(--font-mono);
    font-size: 32px;
    font-weight: 700;
    color: var(--color-primary-text);
}

.data-unit {
    font-family: var(--font-mono);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary-text);
}

.data-label {
    display: block;
    font-size: 12px;
    color: var(--color-secondary-text);
    margin-top: 4px;
}

.process-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.step-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--color-light-blue);
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary-text);
}

.step-label {
    font-size: 12px;
    color: var(--color-secondary-text);
}

.flow-arrow {
    flex: 1;
    height: 2px;
    background: linear-gradient(to right, var(--color-border), var(--color-accent), var(--color-border));
    margin: 0 8px;
    position: relative;
}

.flow-arrow::after {
    content: '';
    position: absolute;
    right: -4px;
    top: -3px;
    width: 0;
    height: 0;
    border-left: 6px solid var(--color-accent);
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
}

/* ==================== 能力矩阵 ==================== */
.capability-matrix {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-white);
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: var(--color-primary-text);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 16px;
    color: var(--color-secondary-text);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.matrix-table {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    overflow: hidden;
}

.matrix-header {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr);
    background-color: var(--color-light-gray);
}

.matrix-row {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr);
    border-top: 1px solid var(--color-border);
    transition: background-color 0.2s ease-out;
}

.matrix-row:nth-child(even) {
    background-color: var(--color-canvas);
}

.matrix-row:hover {
    background-color: var(--color-light-gray);
}

.matrix-cell {
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-right: 1px solid var(--color-border);
}

.matrix-cell:last-child {
    border-right: none;
}

.header-cell {
    font-weight: 600;
    font-size: 14px;
    color: var(--color-primary-text);
}

.service-name {
    justify-content: flex-start;
    font-weight: 500;
    color: var(--color-primary-text);
}

.check-icon {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease-out;
}

.check-icon.full {
    background-color: var(--color-accent);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
    background-size: 12px;
    background-position: center;
    background-repeat: no-repeat;
}

.check-icon.half {
    background-color: var(--color-light-gray);
    border: 1px solid var(--color-border);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235f6368' stroke-width='3'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
    background-size: 10px;
    background-position: center;
    background-repeat: no-repeat;
}

.matrix-row:hover .check-icon {
    transform: scale(1.1);
}

.matrix-legend {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: var(--spacing-lg);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--color-secondary-text);
}

/* ==================== 时间线案例 ==================== */
.timeline-cases {
    padding: var(--spacing-xxl) 0;
}

.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--color-border);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-xl);
}

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

.timeline-dot {
    position: absolute;
    left: -33px;
    top: 24px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-accent);
    box-shadow: 0 0 0 4px rgba(236, 101, 43, 0.2);
}

.timeline-card {
    background-color: var(--color-white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: var(--spacing-lg);
    transition: box-shadow 0.2s ease-out;
}

.timeline-card:hover {
    box-shadow: var(--shadow-card-hover);
}

.case-client {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-bottom: var(--spacing-md);
}

.case-stages {
    display: flex;
    gap: 8px;
    margin-bottom: var(--spacing-md);
}

.stage-tag {
    font-size: 12px;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: var(--radius-tag);
}

.stage-tag.problem {
    background-color: var(--color-light-gray);
    color: var(--color-secondary-text);
}

.stage-tag.solution {
    background-color: var(--color-light-blue);
    color: var(--color-primary-text);
}

.stage-tag.result {
    background-color: var(--color-light-green);
    color: var(--color-accent);
}

.case-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.case-problem,
.case-solution {
    font-size: 14px;
    color: var(--color-secondary-text);
}

.case-result {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary-text);
}

.highlight {
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-weight: 700;
}

.case-link {
    display: inline-block;
    margin-top: var(--spacing-md);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-accent);
    transition: color 0.2s ease-out;
}

.case-link:hover {
    color: var(--color-accent-hover);
}

/* ==================== 团队资质 ==================== */
.team-credentials {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-white);
}

.team-credentials-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.subsection-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-bottom: var(--spacing-lg);
}

.team-members {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

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

.member-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.member-avatar svg {
    width: 100%;
    height: 100%;
}

.member-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.member-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary-text);
}

.member-role {
    font-size: 12px;
    color: var(--color-secondary-text);
}

.credentials-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.credential-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    filter: grayscale(100%);
    transition: filter 0.4s ease-out;
}

.credential-badge:hover {
    filter: grayscale(0%);
}

.credential-badge svg {
    width: 48px;
    height: 48px;
}

.credential-badge span {
    font-size: 12px;
    color: var(--color-secondary-text);
}

.trust-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.trust-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.stat-number {
    font-family: var(--font-mono);
    font-size: 40px;
    font-weight: 700;
    color: var(--color-primary-text);
}

.stat-plus,
.stat-unit {
    font-family: var(--font-mono);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary-text);
}

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

.stat-line {
    width: 24px;
    height: 2px;
    background-color: var(--color-accent);
    margin-top: 8px;
}

/* ==================== CTA表单 ==================== */
.cta-form {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-light-gray);
}

.cta-content {
    display: grid;
    grid-template-columns: 60% 40%;
    gap: var(--spacing-xl);
}

.form-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary-text);
    margin-bottom: 8px;
}

.form-subtitle {
    font-size: 14px;
    color: var(--color-secondary-text);
    margin-bottom: var(--spacing-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary-text);
}

.form-group input,
.form-group textarea,
.form-group select {
    font-family: var(--font-primary);
    font-size: 14px;
    color: var(--color-primary-text);
    background-color: var(--color-white);
    border: none;
    border-bottom: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 12px 16px;
    transition: border-color 0.2s ease-out;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-bottom: 2px solid var(--color-accent);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #9aa0a6;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-accent);
}

.btn-submit {
    align-self: flex-start;
    margin-top: var(--spacing-md);
}

.receipt-card {
    background-color: var(--color-white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 32px;
    text-align: center;
    height: fit-content;
}

.receipt-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-md);
}

.receipt-icon svg {
    width: 100%;
    height: 100%;
}

.receipt-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-bottom: var(--spacing-sm);
}

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

.receipt-time {
    font-size: 16px;
    color: var(--color-secondary-text);
    margin: var(--spacing-md) 0;
}

.receipt-time strong {
    color: var(--color-accent);
    font-size: 20px;
}

.receipt-info {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    font-size: 14px;
    color: var(--color-secondary-text);
}

.receipt-phone {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-top: 4px;
}

/* ==================== 页脚 ==================== */
.footer {
    background-color: var(--color-footer);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.footer-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.footer-seo {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.footer-seo span {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    padding: 4px 8px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-tag);
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.2s ease-out;
}

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

.footer-contact li {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 8px;
}

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

.footer-bottom {
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-bottom p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
}

/* ==================== 页面通用样式 ==================== */
.page-header {
    padding: var(--spacing-xxl) 0 var(--spacing-xl);
    text-align: center;
}

.page-title {
    font-size: 40px;
    font-weight: 700;
    color: var(--color-primary-text);
    margin-bottom: var(--spacing-md);
}

.page-subtitle {
    font-size: 16px;
    color: var(--color-secondary-text);
}

/* ==================== 服务页面 ==================== */
.services-list {
    padding: 0 0 var(--spacing-xxl);
}

.service-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.service-card {
    background-color: var(--color-white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: var(--spacing-lg);
    transition: box-shadow 0.2s ease-out;
}

.service-card:hover {
    box-shadow: var(--shadow-card-hover);
}

.service-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-md);
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-bottom: 8px;
}

.service-desc {
    font-size: 14px;
    color: var(--color-secondary-text);
    margin-bottom: var(--spacing-md);
}

.service-features {
    margin-bottom: var(--spacing-md);
}

.service-features li {
    font-size: 14px;
    color: var(--color-secondary-text);
    padding: 4px 0;
    padding-left: 20px;
    position: relative;
}

.service-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-accent);
}

.service-metrics {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-md);
}

.metric {
    display: flex;
    flex-direction: column;
}

.metric-value {
    font-family: var(--font-mono);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary-text);
}

.metric-label {
    font-size: 12px;
    color: var(--color-secondary-text);
}

.service-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-accent);
}

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

/* 服务流程 */
.service-process {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-white);
}

.process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
}

.process-step {
    text-align: center;
    padding: var(--spacing-lg);
}

.step-number {
    font-family: var(--font-mono);
    font-size: 32px;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.step-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-bottom: 8px;
}

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

.process-arrow {
    width: 40px;
    height: 2px;
    background-color: var(--color-border);
    position: relative;
}

.process-arrow::after {
    content: '';
    position: absolute;
    right: -4px;
    top: -3px;
    width: 0;
    height: 0;
    border-left: 6px solid var(--color-border);
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
}

/* ==================== 案例页面 ==================== */
.case-filter {
    padding: 0 0 var(--spacing-lg);
}

.filter-tags {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.filter-tag {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-secondary-text);
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 8px 20px;
    cursor: pointer;
    transition: all 0.2s ease-out;
}

.filter-tag:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.filter-tag.active {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
}

.cases-grid {
    padding: 0 0 var(--spacing-xxl);
}

.case-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.case-card {
    background-color: var(--color-white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: var(--spacing-lg);
    transition: box-shadow 0.2s ease-out;
}

.case-card:hover {
    box-shadow: var(--shadow-card-hover);
}

.case-logo {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.case-logo svg {
    width: 60px;
    height: 60px;
}

.case-industry {
    font-size: 12px;
    color: var(--color-secondary-text);
    background-color: var(--color-light-gray);
    padding: 4px 12px;
    border-radius: var(--radius-tag);
}

.case-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-bottom: var(--spacing-md);
}

.case-content {
    margin: var(--spacing-md) 0;
}

.case-stage {
    font-size: 14px;
    color: var(--color-secondary-text);
    margin-bottom: 8px;
}

.stage-label {
    font-weight: 500;
    color: var(--color-primary-text);
}

.highlight-text .highlight {
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-weight: 700;
}

.case-metrics {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-md);
}

.case-metric {
    display: flex;
    flex-direction: column;
}

.case-metric .metric-value {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary-text);
}

.case-metric .metric-label {
    font-size: 12px;
    color: var(--color-secondary-text);
}

/* ==================== 关于页面 ==================== */
.about-intro {
    padding: 0 0 var(--spacing-xxl);
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.intro-text p {
    font-size: 16px;
    color: var(--color-secondary-text);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.intro-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.intro-stat {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
}

.intro-stat .stat-number {
    font-size: 36px;
}

/* 公司时间线 */
.company-timeline {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-white);
}

.company-timeline .timeline-card {
    padding: var(--spacing-md);
}

.timeline-year {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 700;
    color: var(--color-accent);
}

.timeline-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin: 8px 0;
}

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

/* 核心团队 */
.core-team {
    padding: var(--spacing-xxl) 0;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.team-card {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
}

.team-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-md);
    border-radius: 50%;
    overflow: hidden;
}

.team-avatar svg {
    width: 100%;
    height: 100%;
}

.team-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-bottom: 4px;
}

.team-role {
    font-size: 14px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.team-bio {
    font-size: 12px;
    color: var(--color-secondary-text);
    line-height: 1.5;
}

/* 资质认证 */
.certifications {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-white);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.cert-card {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--color-canvas);
    border-radius: var(--radius-card);
    transition: transform 0.2s ease-out;
}

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

.cert-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
}

.cert-icon svg {
    width: 100%;
    height: 100%;
}

.cert-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-bottom: 4px;
}

.cert-desc {
    font-size: 12px;
    color: var(--color-secondary-text);
}

/* 企业文化 */
.culture {
    padding: var(--spacing-xxl) 0;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.culture-item {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--color-white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
}

.culture-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-bottom: var(--spacing-md);
}

.culture-desc {
    font-size: 14px;
    color: var(--color-secondary-text);
    line-height: 1.6;
}

/* ==================== 联系页面 ==================== */
.contact-section {
    padding: 0 0 var(--spacing-xxl);
}

.contact-content {
    display: grid;
    grid-template-columns: 60% 40%;
    gap: var(--spacing-xl);
}

.contact-form-wrapper {
    background-color: var(--color-white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: var(--spacing-xl);
}

.contact-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-info-card {
    background-color: var(--color-white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: var(--spacing-lg);
}

.info-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-bottom: var(--spacing-md);
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-list li {
    display: flex;
    align-items: center;
    gap: 12px;
}

.contact-list svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
    flex-shrink: 0;
}

.contact-label {
    display: block;
    font-size: 12px;
    color: var(--color-secondary-text);
}

.contact-value {
    font-size: 14px;
    color: var(--color-primary-text);
}

.map-placeholder {
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.map-placeholder svg {
    width: 100%;
    height: auto;
    display: block;
}

/* FAQ */
.faq-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-white);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.faq-item {
    padding: var(--spacing-lg);
    background-color: var(--color-canvas);
    border-radius: var(--radius-card);
}

.faq-question {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-bottom: var(--spacing-sm);
}

.faq-answer {
    font-size: 14px;
    color: var(--color-secondary-text);
    line-height: 1.6;
}

/* ==================== CTA区域 ==================== */
.cta-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-light-gray);
    text-align: center;
}

.cta-section .cta-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-primary-text);
    margin-bottom: var(--spacing-md);
}

.cta-section .cta-desc {
    font-size: 16px;
    color: var(--color-secondary-text);
    margin-bottom: var(--spacing-lg);
}

/* ==================== 动画 ==================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.5s ease-out forwards;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
    }
    
    .hero-panel {
        order: -1;
    }
    
    .team-credentials-content {
        grid-template-columns: 1fr;
    }
    
    .cta-content {
        grid-template-columns: 1fr;
    }
    
    .service-cards {
        grid-template-columns: 1fr;
    }
    
    .case-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .intro-content {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-cta {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .navbar.menu-open .nav-links {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background-color: var(--color-canvas);
        border-bottom: 1px solid var(--color-border);
        padding: var(--spacing-md);
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .data-cards {
        grid-template-columns: 1fr;
    }
    
    .process-flow {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .flow-arrow {
        display: none;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .matrix-header,
    .matrix-row {
        grid-template-columns: 1fr;
    }
    
    .matrix-cell {
        justify-content: flex-start;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }
    
    .matrix-header {
        display: none;
    }
    
    .matrix-row {
        padding: var(--spacing-md);
    }
    
    .service-name {
        font-weight: 600;
        margin-bottom: var(--spacing-sm);
    }
    
    .timeline {
        padding-left: 0;
    }
    
    .timeline::before {
        display: none;
    }
    
    .timeline-dot {
        position: static;
        margin-bottom: var(--spacing-sm);
    }
    
    .trust-stats {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .case-cards {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        flex-direction: column;
    }
    
    .process-arrow {
        width: 2px;
        height: 30px;
    }
    
    .process-arrow::after {
        right: -3px;
        top: auto;
        bottom: -4px;
        border-left: 4px solid transparent;
        border-right: 4px solid transparent;
        border-top: 6px solid var(--color-border);
        border-bottom: none;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-grid {
        grid-template-columns: 1fr;
    }
    
    .culture-grid {
        grid-template-columns: 1fr;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .page-title {
        font-size: 28px;
    }
}

/* ==================== 案例详情页样式 ==================== */
.case-detail {
    padding: var(--spacing-xl) 0 var(--spacing-xxl);
}

.case-detail-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.back-link {
    font-size: 14px;
    color: var(--color-secondary-text);
    transition: color 0.2s ease-out;
}

.back-link:hover {
    color: var(--color-accent);
}

.case-industry-tag {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-secondary-text);
    background-color: var(--color-light-gray);
    padding: 6px 16px;
    border-radius: 20px;
}

.case-detail-title {
    font-size: 40px;
    font-weight: 700;
    color: var(--color-primary-text);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.case-detail-subtitle {
    font-size: 18px;
    color: var(--color-secondary-text);
    margin-bottom: var(--spacing-xl);
}

.case-metrics-highlight {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.metric-card {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--color-white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
}

.metric-card .metric-value {
    font-family: var(--font-mono);
    font-size: 40px;
    font-weight: 700;
    color: var(--color-accent);
    display: block;
    margin-bottom: 8px;
}

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

.case-detail-content {
    max-width: 800px;
}

.case-section {
    margin-bottom: var(--spacing-xl);
}

.case-section-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-accent);
}

.case-section p {
    font-size: 16px;
    color: var(--color-secondary-text);
    line-height: 1.7;
}

.challenge-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.challenge-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-light-gray);
    border-radius: var(--radius-card);
}

.challenge-icon {
    width: 24px;
    height: 24px;
    color: var(--color-accent);
    flex-shrink: 0;
}

.challenge-icon svg {
    width: 100%;
    height: 100%;
}

.challenge-item h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-bottom: 4px;
}

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

.solution-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.solution-feature {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
}

.feature-number {
    font-family: var(--font-mono);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-accent);
    flex-shrink: 0;
}

.solution-feature h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-bottom: 4px;
}

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

.result-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.result-item {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
}

.result-value {
    font-family: var(--font-mono);
    font-size: 36px;
    font-weight: 700;
    color: var(--color-accent);
    display: block;
    margin-bottom: 8px;
}

.result-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary-text);
    display: block;
    margin-bottom: 4px;
}

.result-item p {
    font-size: 12px;
    color: var(--color-secondary-text);
}

.client-quote {
    padding: var(--spacing-lg);
    background-color: var(--color-light-gray);
    border-radius: var(--radius-card);
    border-left: 4px solid var(--color-accent);
}

.client-quote p {
    font-size: 16px;
    font-style: italic;
    color: var(--color-primary-text);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.client-quote cite {
    font-size: 14px;
    color: var(--color-secondary-text);
    font-style: normal;
}

.related-cases {
    margin-top: var(--spacing-xxl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.related-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.related-card {
    display: block;
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    transition: all 0.2s ease-out;
}

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

.related-industry {
    font-size: 12px;
    color: var(--color-secondary-text);
    background-color: var(--color-light-gray);
    padding: 4px 12px;
    border-radius: var(--radius-tag);
    display: inline-block;
    margin-bottom: var(--spacing-sm);
}

.related-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary-text);
    margin-bottom: 4px;
}

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

.case-cta {
    margin-top: var(--spacing-xxl);
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--color-light-gray);
    border-radius: var(--radius-card);
}

.case-cta h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-primary-text);
    margin-bottom: var(--spacing-sm);
}

.case-cta p {
    font-size: 16px;
    color: var(--color-secondary-text);
    margin-bottom: var(--spacing-lg);
}

@media (max-width: 768px) {
    .case-detail-title {
        font-size: 28px;
    }
    
    .case-metrics-highlight {
        grid-template-columns: 1fr;
    }
    
    .solution-features {
        grid-template-columns: 1fr;
    }
    
    .result-grid {
        grid-template-columns: 1fr;
    }
    
    .related-cards {
        grid-template-columns: 1fr;
    }
}