/* ============================================
   全局样式与变量
   ============================================ */
:root {
    --color-primary: #ffffff; /* 白色背景 */
    --color-secondary: #f5f7fa; /* 浅灰背景 */
    --color-accent: #0739a8; /* 蓝色强调色 */
    --color-accent-alt: #52c41a; /* 绿色辅助色 */
    --color-text: #1f2937; /* 深灰文字 */
    --color-text-light: #6b7280; /* 中灰文字 */
    --color-text-muted: #9ca3af; /* 浅灰文字 */
    --color-border: #e5e7eb; /* 边框色 */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(229, 231, 235, 0.8);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.12);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--color-primary);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* ============================================
   卡片效果
   ============================================ */
.glass-card {
    background: var(--color-primary);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.glass-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-xl);
}

/* ============================================
   导航栏
   ============================================ */
.header {
    position: relative;
    z-index: 1000;
    background: #0739a8;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.header.scrolled {
    background: #0739a8;
    box-shadow: var(--shadow-md);
}

/* 移动端菜单打开时，确保header在菜单下方 */
@media (max-width: 768px) {
    .header {
        z-index: 9998;
    }
}

.navbar {
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 3rem;
}

.nav-brand {
    position: relative;
    z-index: 1001;
    order: -1;
    flex-shrink: 0;
}

.nav-brand a {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.nav-brand .logo-img {
    height: 70px;
    width: auto;
    max-width: 300px;
    object-fit: contain;
    transition: var(--transition);
    position: relative;
    z-index: 1001;
}

.nav-brand .logo-img:hover {
    opacity: 0.8;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin-left: auto;
    align-items: center;
}

.lang-switcher {
    margin-left: 2rem;
    display: flex;
    align-items: center;
}

.lang-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.9);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.3);
}

.lang-text {
    font-weight: 600;
}

.nav-menu a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: rgba(255, 255, 255, 0.9);
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: rgba(255, 255, 255, 1);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
    position: relative;
    -webkit-tap-highlight-color: transparent;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: rgba(255, 255, 255, 0.9);
    transition: var(--transition);
}

/* ============================================
   首页 Hero 区域
   ============================================ */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 20px 80px;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #f0f9ff 100%);
}

.particles-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

#particles-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 700;
    margin-bottom: 2rem;
    line-height: 1.3;
    color: var(--color-text);
}

.title-line {
    display: block;
    color: var(--color-text);
}

.title-subtitle {
    display: block;
    font-size: 0.5em;
    font-weight: 400;
    color: var(--color-accent);
    margin-top: 1rem;
    letter-spacing: 2px;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--color-text-light);
    margin-bottom: 3rem;
    line-height: 1.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.875rem;
    z-index: 1;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--color-accent);
    border-bottom: 2px solid var(--color-accent);
    transform: rotate(45deg);
    margin: 10px auto;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) rotate(45deg);
    }
    40% {
        transform: translateY(-10px) rotate(45deg);
    }
    60% {
        transform: translateY(-5px) rotate(45deg);
    }
}

/* ============================================
   按钮样式
   ============================================ */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--color-accent);
    color: #ffffff;
    box-shadow: var(--shadow-md);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: #0d4fc7;
}

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

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

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* ============================================
   运营模式
   ============================================ */
.operating-model {
    padding: 100px 0;
    background: var(--color-primary);
}

.model-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.model-description {
    font-size: 1.15rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-top: 1.5rem;
}

.model-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.model-feature {
    padding: 2.5rem;
    text-align: center;
}

.model-feature .feature-icon {
    width: 80px;
    height: 80px;
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(7, 57, 168, 0.1);
    border-radius: 16px;
    padding: 16px;
    margin-bottom: 1.5rem;
    transition: all 0.3s;
}

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

.model-feature:hover .feature-icon {
    background: rgba(7, 57, 168, 0.15);
    transform: scale(1.05);
}

.model-feature h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-text);
    font-weight: 700;
}

.feature-highlight {
    font-size: 1.1rem;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.feature-highlight strong {
    color: var(--color-text);
    font-weight: 700;
}

.feature-desc {
    color: var(--color-text-light);
    line-height: 1.8;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    text-align: center;
    margin-bottom: 1rem;
    font-weight: 700;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-light);
    font-size: 1.25rem;
    margin-bottom: 3rem;
}

.offices-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.office-showcase-card {
    position: relative;
    min-height: 400px;
    padding: 2.5rem;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.office-card-bg-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.4s;
    z-index: 0;
}

.office-showcase-card:hover .office-card-bg-gradient {
    opacity: 1;
}

.office-showcase-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-xl);
}

.office-card-content {
    position: relative;
    z-index: 1;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.office-flag-large {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    transition: transform 0.3s;
    display: inline-block;
}

.office-showcase-card:hover .office-flag-large {
    transform: scale(1.05);
}

.office-number-badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0.1;
    line-height: 1;
    transition: opacity 0.3s;
}

.office-showcase-card:hover .office-number-badge {
    opacity: 0.15;
}

.office-showcase-card h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--color-text);
    font-weight: 700;
}

.office-role {
    font-size: 1rem;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.office-desc {
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 2rem;
    flex-grow: 1;
    font-size: 0.95rem;
}

.office-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: auto;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
}

.office-stats .stat {
    text-align: center;
}

.office-stats .stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.office-stats .stat-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   核心服务
   ============================================ */
.core-services {
    padding: 100px 0;
    background: var(--color-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    text-align: center;
    padding: 2.5rem 2rem;
}

.service-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(7, 57, 168, 0.1);
    border-radius: 12px;
    padding: 12px;
    transition: all 0.3s;
}

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

.service-card:hover .service-icon {
    background: rgba(7, 57, 168, 0.15);
    transform: scale(1.05);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-text);
    font-weight: 700;
}

.service-card p {
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ============================================
   运营优势
   ============================================ */
.operating-advantages {
    padding: 100px 0;
    background: var(--color-secondary);
}

.advantages-header {
    text-align: center;
    margin-bottom: 4rem;
}

.advantages-list {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.advantage-item {
    padding: 3rem;
    position: relative;
}

.advantage-item h3 {
    font-size: 1.25rem;
    margin-top: 1rem;
    margin-bottom: 1.5rem;
    color: var(--color-text);
    font-weight: 600;
}

.advantage-core-text {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
    line-height: 1.4;
    font-weight: 700;
}

.advantage-description {
    color: var(--color-text-light);
    line-height: 1.8;
    font-size: 1rem;
    margin-top: 1.5rem;
}

/* ============================================
   工作流程
   ============================================ */
.workflow {
    padding: 100px 0;
    background: var(--color-secondary);
}

.workflow-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.workflow-step {
    text-align: center;
    padding: 2.5rem 2rem;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 16px;
    border: 1px solid rgba(59, 130, 246, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.workflow-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.workflow-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.3);
}

.workflow-step:hover::before {
    transform: scaleX(1);
}

.workflow-step h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-text);
    font-weight: 700;
    position: relative;
}

.workflow-step h3::after {
    content: '';
    display: block;
    width: 40px;
    height: 3px;
    background: var(--color-accent);
    margin: 1rem auto 0;
    border-radius: 2px;
}

.workflow-step p {
    color: var(--color-text-light);
    line-height: 1.8;
    margin-top: 1.5rem;
}

/* ============================================
   页面 Hero
   ============================================ */
.page-hero {
    padding: 150px 0 80px;
    text-align: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
}

.page-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-subtitle {
    font-size: 1.5rem;
    color: var(--color-text-light);
}

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

.intro-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.intro-content h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--color-accent);
}

.intro-content .lead {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.intro-content p {
    font-size: 1.1rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

.offices {
    padding: 80px 0;
    background: var(--color-secondary);
}

.offices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.office-card {
    text-align: center;
    padding: 2rem;
}

.office-flag {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.office-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
}

.office-card p {
    color: var(--color-text-light);
}

.values {
    padding: 80px 0;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.value-item {
    text-align: center;
    padding: 2rem;
}

.value-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.value-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
}

.value-item p {
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ============================================
   服务详情
   ============================================ */
.core-services-detail {
    padding: 80px 0;
}

.services-detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-detail-card {
    padding: 2.5rem;
}

.service-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
}

.service-icon-large {
    font-size: 3rem;
}

.service-header h3 {
    font-size: 1.5rem;
    color: var(--color-text);
    font-weight: 700;
}

.service-content ul {
    list-style: none;
    margin-top: 1rem;
}

.service-content ul li {
    padding: 0.5rem 0;
    color: var(--color-text-light);
    position: relative;
    padding-left: 1.5rem;
}

.service-content ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.service-packages {
    padding: 80px 0;
    background: var(--color-secondary);
}

.packages-tabs {
    display: flex;
    gap: 1rem;
    margin-top: 3rem;
    flex-wrap: wrap;
    justify-content: center;
}

.tab-btn {
    padding: 0.875rem 1.5rem;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
    font-weight: 500;
}

.tab-btn:hover,
.tab-btn.active {
    background: var(--color-accent);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.packages-content {
    margin-top: 3rem;
}

.package-panel {
    display: none;
    animation: fadeIn 0.5s ease-in;
}

.package-panel.active {
    display: block;
}

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

.package-header {
    margin-bottom: 2rem;
}

.package-header h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--color-text);
    font-weight: 700;
}

.package-tag {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(7, 57, 168, 0.1);
    border-radius: 12px;
    font-size: 0.875rem;
    color: var(--color-accent);
}

.package-features {
    list-style: none;
    margin-bottom: 2rem;
}

.package-features li {
    padding: 0.75rem 0;
    color: var(--color-text-light);
    font-size: 1.1rem;
}

.package-deliverables {
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
}

.package-deliverables h4 {
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.package-deliverables p {
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ============================================
   案例研究
   ============================================ */
.cases {
    padding: 100px 0;
}

.cases-tabs {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.case-tab-btn {
    padding: 0.875rem 1.5rem;
    background: transparent;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
    font-weight: 500;
}

.case-tab-btn:hover,
.case-tab-btn.active {
    background: var(--color-accent);
    color: #ffffff;
    border-color: var(--color-accent);
    box-shadow: var(--shadow-sm);
}

.cases-content {
    position: relative;
}

.case-panel {
    display: none;
    animation: fadeIn 0.5s ease-in;
}

.case-panel.active {
    display: block;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
    width: 100%;
}


.case-card {
    padding: 2.5rem;
    width: 100%;
    box-sizing: border-box;
}

.case-category {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(7, 57, 168, 0.1);
    color: var(--color-accent);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.case-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
}

.case-client {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.case-challenge,
.case-solution,
.case-result {
    margin-bottom: 1.5rem;
}

.case-challenge h4,
.case-solution h4,
.case-result h4 {
    color: var(--color-text);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.case-challenge p,
.case-result p {
    color: var(--color-text-light);
    line-height: 1.8;
}

.case-solution ul {
    list-style: none;
    margin-top: 0.5rem;
}

.case-solution ul li {
    padding: 0.5rem 0;
    color: var(--color-text-light);
    position: relative;
    padding-left: 1.5rem;
}

.case-solution ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: bold;
}

/* 里程碑案例特殊样式 */
.case-featured {
    position: relative;
    border: 2px solid var(--color-accent);
    background: linear-gradient(135deg, rgba(7, 57, 168, 0.02) 0%, rgba(7, 57, 168, 0.05) 100%);
}

.case-featured::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent) 0%, #0d4fc7 100%);
}

.case-badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--color-accent) 0%, #0d4fc7 100%);
    color: white;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 12px rgba(7, 57, 168, 0.3);
    z-index: 1;
}

.case-highlight {
    background: rgba(7, 57, 168, 0.08);
    border-left: 4px solid var(--color-accent);
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 8px;
}

.case-highlight .highlight-text {
    color: var(--color-accent);
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.6;
    margin: 0;
    font-style: italic;
}

.case-overview {
    background: rgba(7, 57, 168, 0.03);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.case-overview h4 {
    color: var(--color-text);
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.case-overview p {
    color: var(--color-text-light);
    line-height: 1.8;
    margin: 0;
}

.case-overview p strong {
    color: var(--color-accent);
    font-weight: 600;
}

.case-key-points {
    margin-bottom: 1.5rem;
}

.case-key-points h4 {
    color: var(--color-text);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

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

.case-key-points ul li {
    padding: 0.5rem 0 0.5rem 1.5rem;
    margin-bottom: 0.5rem;
    position: relative;
    color: var(--color-text-light);
    line-height: 1.7;
}

.case-key-points ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.7em;
    width: 2px;
    height: 1em;
    background: var(--color-accent);
}

.case-key-points ul li:hover {
    color: var(--color-text);
}

.case-key-points ul li strong {
    color: var(--color-text);
    font-weight: 600;
}

.case-difficulty {
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
}

.case-difficulty h4 {
    color: var(--color-text);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

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

.case-difficulty ul li {
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    background: rgba(7, 57, 168, 0.08);
    border-left: 3px solid var(--color-accent);
    border-radius: 6px;
    color: #1a1a1a;
    font-weight: 600;
    line-height: 1.7;
    transition: all 0.3s ease;
}

.case-difficulty ul li:hover {
    background: rgba(7, 57, 168, 0.12);
    border-left-color: var(--color-accent);
    color: #000000;
    transform: translateX(3px);
}

/* PDF案例卡片样式 */
.pdf-case-card {
    padding: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
    max-width: 450px;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
}

.pdf-case-link {
    display: block;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.pdf-case-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.pdf-case-image {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: #000;
    max-width: 100%;
    box-sizing: border-box;
}

.pdf-cover-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.3s ease;
    display: block;
    max-width: 100%;
}

.pdf-case-card:hover .pdf-cover-image {
    transform: scale(1.05);
}

.pdf-case-content {
    padding: 2rem;
}

.pdf-case-content h3 {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.pdf-case-desc {
    color: var(--color-text-light);
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
}


/* ============================================
   联系我们
   ============================================ */
.contact {
    padding: 100px 0;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--color-accent);
}

.contact-info .lead {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 3rem;
    line-height: 1.8;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 3rem;
}

.contact-method {
    padding: 2rem;
    text-align: center;
}

.method-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.contact-method h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
}

.email-link {
    color: var(--color-accent);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 600;
    transition: var(--transition);
}

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

.method-desc {
    color: var(--color-text-light);
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

.global-offices h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--color-accent);
}

.offices-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.office-item {
    padding: 1rem;
    background: var(--glass-bg);
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
}

.office-item strong {
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.office-item span {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.contact-form-wrapper {
    position: sticky;
    top: 100px;
}

.contact-form {
    padding: 2.5rem;
}

.contact-form h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--color-accent);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--color-text-light);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--color-text);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    background: rgba(255, 255, 255, 0.08);
}

.form-group textarea {
    resize: vertical;
}

/* ============================================
   页脚
   ============================================ */
.footer {
    padding: 60px 0 30px;
    background: #1c2a6f;
    color: #ffffff;
    border-top: 1px solid var(--color-border);
}

.footer-section h3 {
    color: #ffffff;
}

.footer-section ul li {
    color: #ffffff;
}

.footer-section p {
    color: #ffffff;
}

.footer-section a {
    color: #ffffff;
}

.footer-section a:hover {
    color: #0d4fc7;
}

.footer-bottom {
    color: #ffffff;
}

.footer-content {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 4rem;
    margin-bottom: 3rem;
    width: 100%;
    max-width: 100%;
}

.footer-section {
    width: 100%;
    max-width: 100%;
}

.footer-services {
    justify-self: start;
    text-align: left;
}

.footer-contact {
    justify-self: start;
    text-align: left;
}

.footer-contact .social-icons {
    justify-content: flex-start !important;
    text-align: left !important;
    margin-top: 0.5rem;
}

.footer-section h3 {
    color: #ffffff;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

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

.footer-section ul li {
    padding: 0.5rem 0;
    color: #ffffff;
}

.footer-section p {
    color: #ffffff;
    line-height: 1.8;
}

.footer-section a {
    color: #ffffff;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: #ffffff;
    opacity: 0.8;
}

.footer-section .social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    color: #ffffff;
    transition: var(--transition);
}

.footer-section .social-icons a:hover {
    color: #ffffff;
    opacity: 0.8;
    transform: translateY(-2px);
}

.footer-section .social-icons svg {
    width: 100%;
    height: 100%;
}

.footer-section .social-icons a[aria-label="小红书"] {
    overflow: visible;
}

.footer-section .social-icons a[aria-label="小红书"] {
    width: 24px;
    height: 24px;
}

.footer-section .social-icons a[aria-label="小红书"] svg {
    width: 24px;
    height: 24px;
}

/* 微信二维码样式 */
.wechat-qrcodes {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.wechat-qrcodes .qrcode-item {
    text-align: center;
}

.wechat-qrcodes .qrcode-item p {
    color: #ffffff;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.wechat-qrcodes .qrcode-item img {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    background: #ffffff;
    padding: 8px;
    display: block;
    margin: 0 auto;
    transition: transform 0.3s ease;
}

.wechat-qrcodes .qrcode-item img:hover {
    transform: scale(1.05);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
    color: #cccccc;
}

/* ============================================
   响应式设计
   ============================================ */

/* 大屏幕优化（iMac等） */
@media (min-width: 1920px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: 5rem;
    }
    
    .section-title {
        font-size: 3.5rem;
    }
}

/* 平板横屏 */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        padding: 0 30px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr !important;
        display: grid !important;
    }
    
    .footer-contact {
        text-align: left;
    }
}

/* 桌面端强制3列 */
@media (min-width: 1025px) {
    .cases-grid {
        grid-template-columns: repeat(3, 1fr) !important;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr !important;
        display: grid !important;
    }
    
    .footer-contact {
        text-align: left;
    }
}

/* 移动端和平板竖屏 */
@media (max-width: 768px) {
    /* 隐藏header背景色块 */
    .header {
        background: transparent;
        border-bottom: none;
        box-shadow: none;
    }
    
    .header.scrolled {
        background: transparent;
        box-shadow: none;
    }
    
    /* 隐藏logo */
    .nav-brand {
        display: none;
    }
    
    /* 调整导航栏布局 */
    .navbar .container {
        justify-content: space-between;
        position: relative;
    }
    
    /* 隐藏导航栏容器背景 */
    .navbar {
        background: transparent;
        padding: 0;
    }
    
    /* 优化菜单样式 */
    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 100vw;
        height: 100vh;
        min-height: 100vh;
        background: linear-gradient(135deg, rgba(7, 57, 168, 0.98) 0%, rgba(7, 57, 168, 0.95) 100%);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 0;
        margin: 0;
        transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 10000;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        box-shadow: none;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex !important;
        visibility: visible !important;
        position: fixed;
        top: 1rem;
        left: 1rem;
        z-index: 10002;
        background: rgba(7, 57, 168, 0.3);
        border-radius: 6px;
        padding: 0.5rem;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }
    
    .nav-menu li {
        width: 100%;
        margin: 0;
        list-style: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-menu li:first-child {
        margin-top: 80px;
    }
    
    .nav-menu a {
        display: block;
        padding: 1.5rem 2rem;
        font-size: 1.2rem;
        font-weight: 500;
        color: rgba(255, 255, 255, 0.95);
        text-decoration: none;
        transition: all 0.3s ease;
        position: relative;
        letter-spacing: 0.5px;
    }
    
    .nav-menu a::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        width: 4px;
        height: 100%;
        background: rgba(255, 255, 255, 0.3);
        transform: scaleY(0);
        transition: transform 0.3s ease;
    }
    
    .nav-menu a:hover,
    .nav-menu a.active {
        background: rgba(255, 255, 255, 0.1);
        color: #ffffff;
        padding-left: 2.5rem;
    }
    
    .nav-menu a:hover::before,
    .nav-menu a.active::before {
        transform: scaleY(1);
    }
    
    /* 移动端语言切换按钮 */
    .lang-switcher {
        position: fixed;
        top: 1rem;
        right: 1rem;
        z-index: 10002;
        margin-left: 0;
    }
    
    .lang-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
        background: rgba(7, 57, 168, 0.3) !important;
        border: 1px solid rgba(255, 255, 255, 0.2) !important;
        border-radius: 6px;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        color: rgba(255, 255, 255, 0.9) !important;
    }
    
    .lang-btn:hover {
        background: rgba(7, 57, 168, 0.4) !important;
        color: #ffffff !important;
    }
    
    .nav-menu a.active {
        font-weight: 600;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .services-grid,
    .services-detail-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .case-featured {
        border-width: 1px;
    }
    
    .case-badge {
        position: static;
        display: inline-block;
        margin-bottom: 1rem;
    }
    
    .case-highlight {
        padding: 1.25rem;
    }
    
    .case-highlight .highlight-text {
        font-size: 1rem;
    }
    
    .case-overview {
        padding: 1.25rem;
    }
    
    .case-key-points ul li {
        padding: 0.875rem;
    }
    
    .case-difficulty ul li {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .case-card h3 {
        font-size: 1.5rem;
    }
    
    .case-client {
        font-size: 0.95rem;
        line-height: 1.7;
    }
    
    .pdf-case-image {
        aspect-ratio: 4 / 3;
        max-width: 100%;
    }
    
    .pdf-case-content {
        padding: 1.5rem;
    }
    
    .pdf-case-content h3 {
        font-size: 1.25rem;
    }
    
    .pdf-case-card {
        max-width: 100%;
        margin: 0;
    }
    
    .pdf-case-card {
        max-width: 100%;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        position: static;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
    
    .packages-tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        width: 100%;
    }
    
    .offices-list {
        grid-template-columns: 1fr;
    }
    
    .hero {
        min-height: 80vh;
        padding: 2rem 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.2;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    .glass-card {
        padding: 1.5rem;
    }
    
    .operating-model,
    .core-services,
    .cases,
    .contact,
    .about-intro-enhanced {
        padding: 60px 0;
    }
    
    .model-features {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .model-feature {
        padding: 1.5rem;
        min-height: auto;
    }
    
    
    .footer-content {
        grid-template-columns: 1fr !important;
        gap: 2rem;
    }
    
    .footer-services,
    .footer-contact {
        justify-self: stretch !important;
        text-align: left !important;
    }
    
    .footer {
        padding: 40px 0 20px;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .wechat-qrcodes {
        margin-top: 1rem;
        padding-top: 1rem;
    }
    
    .wechat-qrcodes .qrcode-item {
        flex: 1;
        min-width: 100px;
    }
    
    .wechat-qrcodes .qrcode-item img {
        width: 100px;
        height: 100px;
    }
    
    .wechat-qrcodes .qrcode-item p {
        font-size: 0.85rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .section-title-enhanced {
        font-size: 1.75rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 0.9rem;
    }
    
    .glass-card {
        padding: 1.25rem;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .pdf-case-image {
        height: 250px;
    }
    
    .cases-tabs {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .case-tab-btn {
        width: 100%;
        padding: 0.875rem;
    }
}

/* 横屏手机 */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        min-height: 70vh;
    }
    
    .nav-menu {
        height: calc(100vh - 70px);
        overflow-y: auto;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    .nav-menu a {
        padding: 1rem;
        font-size: 1.1rem;
    }
    
    .case-tab-btn {
        min-height: 44px;
    }
}

/* ============================================
   增强设计样式 - 关于我们页面
   ============================================ */
.page-hero-enhanced {
    position: relative;
    padding: 150px 0 80px;
    text-align: center;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #f0f9ff 100%);
    overflow: hidden;
}


.hero-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(7, 57, 168, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 0, 110, 0.1) 0%, transparent 50%);
    animation: patternMove 20s ease-in-out infinite;
}

@keyframes patternMove {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-20px, -20px) scale(1.1); }
}

.page-title-enhanced {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    margin-bottom: 0;
    color: var(--color-text);
    position: relative;
    z-index: 1;
}

/* 强制隐藏已删除的元素 */
.title-divider,
.page-subtitle-enhanced,
.hero-content-enhanced .title-divider,
.hero-content-enhanced .page-subtitle-enhanced {
    display: none !important;
    visibility: hidden !important;
    height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    opacity: 0 !important;
}


.about-intro-enhanced {
    padding: 100px 0;
    position: relative;
    background: var(--color-primary);
}

.intro-content-enhanced {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.intro-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(7, 57, 168, 0.1);
    border: 1px solid var(--color-accent);
    border-radius: 20px;
    color: var(--color-accent);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.intro-title {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 2rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text);
}

.intro-text-wrapper {
    text-align: left;
    max-width: 800px;
    margin: 0 auto;
}

.lead-enhanced {
    font-size: 1.5rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
    font-weight: 300;
}

/* 关于我们内容网格布局 */
.about-content-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 4rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.about-card {
    padding: 2.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--color-accent);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.about-card:hover::before {
    transform: scaleY(1);
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.about-card-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--glass-border);
}

.about-card-number {
    width: 48px;
    height: 48px;
    background: var(--color-accent);
    color: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(7, 57, 168, 0.3);
}

.about-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
    line-height: 1.3;
}

.about-card p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-light);
    margin: 0;
}

.about-card p strong {
    color: var(--color-accent);
    font-weight: 600;
}

.about-quote {
    grid-column: 1 / -1;
    padding: 3rem;
    text-align: center;
    background: linear-gradient(135deg, rgba(7, 57, 168, 0.05) 0%, rgba(7, 57, 168, 0.1) 100%);
    border: 2px solid var(--color-accent);
    position: relative;
    overflow: hidden;
}

.about-quote::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(7, 57, 168, 0.1) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 1;
    }
}

.quote-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(7, 57, 168, 0.1);
    border-radius: 50%;
    position: relative;
    z-index: 1;
}

.quote-icon svg {
    width: 32px;
    height: 32px;
}

.quote-text {
    font-size: 1.5rem;
    line-height: 1.8;
    color: var(--color-text);
    font-weight: 500;
    font-style: italic;
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.highlight-text {
    color: var(--color-accent);
    font-weight: 600;
    position: relative;
}

.intro-description {
    font-size: 1.15rem;
    color: var(--color-text-light);
    line-height: 2;
}

/* 增强的办公室卡片 */
.offices-enhanced {
    padding: 100px 0;
    background: var(--color-secondary);
    position: relative;
}

.section-header-enhanced {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title-enhanced {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.section-description {
    font-size: 1.25rem;
    color: var(--color-text-light);
}

.offices-grid-enhanced {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.glass-card-enhanced {
    background: var(--color-primary);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.glass-card-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(7, 57, 168, 0.05), transparent);
    transition: left 0.5s;
}

.glass-card-enhanced:hover::before {
    left: 100%;
}

.glass-card-enhanced:hover {
    transform: translateY(-8px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-xl);
}

.office-card-enhanced {
    position: relative;
    min-height: 280px;
}

.office-card-bg {
    display: none;
}

.office-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.office-flag-enhanced {
    font-size: 3.5rem;
    filter: drop-shadow(0 0 10px rgba(7, 57, 168, 0.5));
}

.office-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0.2;
    line-height: 1;
}

.office-card-enhanced h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
    font-weight: 600;
}

.office-card-enhanced p {
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.office-link {
    color: var(--color-accent);
    font-weight: 600;
    opacity: 0;
    transform: translateX(-10px);
    transition: var(--transition);
}

.office-card-enhanced:hover .office-link {
    opacity: 1;
    transform: translateX(0);
}

/* 增强的理念卡片 */
.values-enhanced {
    padding: 100px 0;
    position: relative;
}

.values-grid-enhanced {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.value-item-enhanced {
    text-align: center;
    padding: 3rem 2rem;
    position: relative;
    min-height: 350px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.value-icon-wrapper {
    position: relative;
    display: inline-block;
    margin-bottom: 1.5rem;
}

.value-icon-enhanced {
    width: 80px;
    height: 80px;
    color: var(--color-accent);
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(7, 57, 168, 0.1);
    border-radius: 16px;
    padding: 16px;
    transition: all 0.3s;
}

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

.value-item-enhanced:hover .value-icon-enhanced {
    background: rgba(7, 57, 168, 0.15);
    transform: scale(1.05);
}

.value-icon-bg {
    display: none;
}

.value-item-enhanced:hover .value-icon-enhanced {
    transform: scale(1.1);
}

.value-item-enhanced h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
    font-weight: 600;
}

.value-item-enhanced p {
    color: var(--color-text-light);
    line-height: 1.8;
    flex-grow: 1;
}

.value-number {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0.1;
    line-height: 1;
}

/* ============================================
   增强设计样式 - 服务页面
   ============================================ */
.service-detail-card {
    position: relative;
    overflow: hidden;
}

.service-stats {
    display: flex;
    gap: 2rem;
    margin: 1.5rem 0;
    padding: 1.5rem 0;
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.stat-item {
    flex: 1;
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-alt));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.service-detail-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: linear-gradient(180deg, var(--color-accent), var(--color-accent-alt));
    transition: height 0.5s;
}

.service-detail-card:hover::after {
    height: 100%;
}

.service-header {
    position: relative;
    z-index: 1;
}

.service-icon-large {
    width: 80px;
    height: 80px;
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(7, 57, 168, 0.1);
    border-radius: 16px;
    padding: 16px;
    transition: all 0.3s;
}

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

.service-detail-card:hover .service-icon-large {
    transform: scale(1.05);
    background: rgba(7, 57, 168, 0.15);
}

.packages-tabs {
    background: var(--color-primary);
    border-radius: 8px;
    padding: 0.5rem;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.tab-btn {
    position: relative;
    overflow: hidden;
}

.tab-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(7, 57, 168, 0.2), transparent);
    transition: left 0.5s;
}

.tab-btn:hover::before {
    left: 100%;
}

.package-panel {
    margin-top: 3rem;
}

.package-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--glass-border);
    position: relative;
}

.package-header::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 2px;
    background: var(--color-accent);
}

.package-tag {
    margin-top: 1rem;
    display: inline-block;
}

/* ============================================
   增强设计样式 - 案例研究页面
   ============================================ */
.cases {
    padding: 100px 0;
    position: relative;
}

.case-card {
    position: relative;
    transition: var(--transition);
    border-left: 4px solid transparent;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(7, 57, 168, 0.05), rgba(255, 0, 110, 0.05));
    opacity: 0;
    transition: opacity 0.3s;
    border-radius: 16px;
}

.case-card:hover::before {
    opacity: 1;
}

.case-card:hover {
    border-left-color: var(--color-accent);
    transform: translateX(10px);
}

.case-category {
    position: relative;
    z-index: 1;
    margin-bottom: 1.5rem;
    display: inline-block;
    background: rgba(7, 57, 168, 0.1);
    color: var(--color-accent);
}

.case-card h3 {
    position: relative;
    z-index: 1;
    margin-bottom: 1rem;
    transition: color 0.3s;
}

.case-card:hover h3 {
    color: var(--color-accent);
}

.case-card h3 {
    color: var(--color-text);
    font-weight: 700;
}

.case-challenge,
.case-solution,
.case-result {
    position: relative;
    z-index: 1;
    padding-left: 1.5rem;
    border-left: 2px solid var(--glass-border);
    transition: border-color 0.3s;
}

.case-card:hover .case-challenge,
.case-card:hover .case-solution,
.case-card:hover .case-result {
    border-left-color: var(--color-accent);
}

.case-card:hover .case-challenge h4,
.case-card:hover .case-solution h4,
.case-card:hover .case-result h4 {
    color: var(--color-accent);
}

.case-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: var(--glass-bg);
    border-radius: 12px;
    border: 1px solid var(--glass-border);
}

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

.metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   行业案例列表样式（卡片式列表）
   ============================================ */
.industry-cases-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.industry-case-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.25rem 1.5rem;
    background: #ffffff;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.industry-case-item .industry-case-content {
    width: 100%;
}

.industry-case-item.hidden {
    display: none;
}

.industry-case-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--color-accent);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.industry-case-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(7, 57, 168, 0.12);
    border-color: rgba(7, 57, 168, 0.2);
}

.industry-case-item:hover::before {
    transform: scaleY(1);
}

.industry-case-number {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #e6edf7 0%, #d1d9f0 100%);
    border-radius: 12px;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    border: 2px solid rgba(7, 57, 168, 0.1);
    transition: all 0.3s ease;
}

.industry-case-item:hover .industry-case-number {
    background: linear-gradient(135deg, var(--color-accent) 0%, #0d4fd8 100%);
    color: #ffffff;
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(7, 57, 168, 0.3);
}

.industry-case-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.industry-case-title-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.industry-case-title {
    flex: 1;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.4;
    margin: 0;
    transition: color 0.3s ease;
    min-width: 0;
}

.industry-case-item:hover .industry-case-title {
    color: var(--color-accent);
}

.industry-case-tags {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
    flex-shrink: 0;
}

.industry-case-tag {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    background: #f3f4f6;
    color: var(--color-text-light);
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 500;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.industry-case-item:hover .industry-case-tag {
    background: rgba(7, 57, 168, 0.1);
    color: var(--color-accent);
}

.industry-case-subtitle {
    font-size: 0.9rem;
    color: var(--color-accent);
    font-weight: 600;
    margin: 0;
}

.industry-case-excerpt {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.industry-case-read-more {
    align-self: flex-start;
    padding: 0.6rem 1.5rem;
    background: transparent;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 0.5rem;
}

.industry-case-read-more:hover {
    background: var(--color-accent);
    color: #ffffff;
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(7, 57, 168, 0.3);
}

/* 行业案例分页样式 */
.industry-cases-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
    padding: 1.5rem 0;
}

.industry-cases-pagination .pagination-btn {
    padding: 0.6rem 1.2rem;
    background: #ffffff;
    border: 1px solid var(--color-border);
    color: var(--color-text);
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.industry-cases-pagination .pagination-btn:hover:not(:disabled) {
    background: var(--color-accent);
    color: #ffffff;
    border-color: var(--color-accent);
}

.industry-cases-pagination .pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.industry-cases-pagination .pagination-info {
    font-size: 0.9rem;
    color: var(--color-text-light);
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .industry-case-item {
        padding: 1rem 1.25rem;
    }
    
    .industry-case-title {
        font-size: 1rem;
    }
    
    .industry-case-title-row {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ============================================
   增强设计样式 - 联系页面
   ============================================ */
.contact {
    padding: 100px 0;
    position: relative;
}

.contact-info h2 {
    position: relative;
    padding-bottom: 1.5rem;
    margin-bottom: 2rem;
}

.contact-info h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-alt));
    border-radius: 2px;
}

.contact-method {
    position: relative;
    overflow: hidden;
}

.contact-method::before {
    display: none;
}

.method-icon {
    width: 64px;
    height: 64px;
    color: var(--color-accent);
    position: relative;
    z-index: 1;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(7, 57, 168, 0.1);
    border-radius: 12px;
    padding: 12px;
    transition: all 0.3s;
}

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

.contact-method:hover .method-icon {
    transform: scale(1.1);
    background: rgba(7, 57, 168, 0.15);
}

.contact-form {
    position: relative;
}

.contact-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-alt));
    border-radius: 16px 16px 0 0;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    box-shadow: 0 0 0 3px rgba(7, 57, 168, 0.2);
}

/* ============================================
   详细服务详情
   ============================================ */
.detailed-services {
    padding: 0;
    background: var(--color-primary);
    overflow: visible;
    position: relative;
}

.detailed-services .container {
    max-width: 100%;
    padding: 0;
}


.detailed-services-content {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-top: 0;
    overflow: visible;
}

.detailed-service-item {
    padding: 0;
    position: relative;
    overflow: hidden;
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    box-sizing: border-box;
    opacity: 0;
    transform: translateY(50px) scale(0.95);
    transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1),
                transform 1s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
    padding-top: 100px; /* 为页眉留出空间 */
    padding-bottom: 80px;
}

.detailed-service-item.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.detailed-service-item .service-content-wrapper {
    width: 100%;
    max-width: 1200px;
    padding: 0 5%;
    position: relative;
    z-index: 1;
}


.detailed-service-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 4rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--glass-border);
    text-align: center;
    width: 100%;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1.2s cubic-bezier(0.4, 0, 0.2, 1) 0.2s,
                transform 1.2s cubic-bezier(0.4, 0, 0.2, 1) 0.2s;
}

.detailed-service-item.visible .detailed-service-title {
    opacity: 1;
    transform: translateY(0);
}

.detailed-service-list {
    list-style: none;
    padding: 0;
    margin: 0;
    width: 100%;
    max-width: 1200px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.detailed-service-list li {
    padding: 2.5rem;
    position: relative;
    line-height: 1.8;
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(40px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.detailed-service-item.visible .detailed-service-list li {
    opacity: 1;
    transform: translateY(0);
}

.detailed-service-item.visible .detailed-service-list li:nth-child(1) {
    transition-delay: 0.3s;
}

.detailed-service-item.visible .detailed-service-list li:nth-child(2) {
    transition-delay: 0.4s;
}

.detailed-service-item.visible .detailed-service-list li:nth-child(3) {
    transition-delay: 0.5s;
}

.detailed-service-item.visible .detailed-service-list li:nth-child(4) {
    transition-delay: 0.6s;
}

.detailed-service-item.visible .detailed-service-list li:nth-child(5) {
    transition-delay: 0.7s;
}

.detailed-service-list li:hover {
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    border-color: var(--color-accent);
}


.detailed-service-list li strong.service-subtitle {
    color: var(--color-accent);
    font-weight: 700;
    display: block;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.detailed-service-list li .service-description {
    display: block;
    color: var(--color-text-light);
    margin-top: 0.75rem;
    line-height: 1.8;
    font-size: 0.95rem;
}

/* 响应式增强 */
@media (max-width: 768px) {
    .offices-grid-enhanced,
    .values-grid-enhanced {
        grid-template-columns: 1fr;
    }
    
    .intro-text-wrapper {
        text-align: center;
    }
    
    .about-content-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-top: 2rem;
    }
    
    .about-card {
        padding: 2rem;
    }
    
    .about-card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .about-card-number {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }
    
    .about-card h3 {
        font-size: 1.25rem;
    }
    
    .about-card p {
        font-size: 1rem;
    }
    
    .about-quote {
        padding: 2rem;
    }
    
    .quote-text {
        font-size: 1.25rem;
    }
    
    .detailed-service-item {
        min-height: auto;
        padding-top: 80px;
        padding-bottom: 60px;
    }
    
    .detailed-service-item .service-content-wrapper {
        padding: 0 4%;
        width: 100%;
        max-width: 100%;
    }
    
    .detailed-service-title {
        font-size: 2rem;
        margin-bottom: 2rem;
        padding-bottom: 1.5rem;
        line-height: 1.3;
    }
    
    .detailed-service-list {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        width: 100%;
        max-width: 100%;
    }
    
    .detailed-service-list li {
        padding: 1.5rem;
        font-size: 0.95rem;
        line-height: 1.7;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .service-subtitle {
        font-size: 1rem !important;
        margin-bottom: 0.75rem;
        display: block;
    }
    
    .service-description {
        font-size: 0.9rem !important;
        line-height: 1.6;
        display: block;
        word-wrap: break-word;
    }
}

/* ============================================
   行业洞察页面
   ============================================ */
.insights {
    padding: 60px 0 100px;
    background: var(--color-primary);
}

/* 搜索框样式 */
.insights-search-container {
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.insights-search-box {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--color-primary);
    border: 2px solid var(--color-border);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    transition: all 0.3s ease;
}

.insights-search-box:focus-within {
    border-color: var(--color-accent);
    box-shadow: 0 4px 12px rgba(7, 57, 168, 0.15);
}

.search-icon {
    color: var(--color-text-light);
    margin-right: 1rem;
    flex-shrink: 0;
}

.insights-search-box:focus-within .search-icon {
    color: var(--color-accent);
}

.insights-search-input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 1rem;
    color: var(--color-text);
    font-weight: 400;
}

.insights-search-input::placeholder {
    color: var(--color-text-light);
}

.search-clear-btn {
    background: transparent;
    border: none;
    color: var(--color-text-light);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 0.5rem;
    transition: all 0.2s ease;
    border-radius: 50%;
}

.search-clear-btn:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--color-text);
}

.insights-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

/* 列表模式样式 */
.insights-content.insights-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 2rem;
}

.insight-list-item {
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    padding: 1.5rem 1.75rem;
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    overflow: hidden;
}

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

.insight-list-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: transparent;
    transition: all 0.3s ease;
}

.insight-list-item:hover {
    background: rgba(7, 57, 168, 0.02);
    transform: translateX(4px);
}

.insight-list-item:hover::before {
    background: var(--color-accent);
}

.insight-keyword {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, rgba(7, 57, 168, 0.12) 0%, rgba(7, 57, 168, 0.08) 100%);
    color: var(--color-accent);
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
    min-width: 70px;
    text-align: center;
    border: 1px solid rgba(7, 57, 168, 0.15);
    box-shadow: 0 2px 4px rgba(7, 57, 168, 0.05);
    transition: all 0.3s ease;
    position: relative;
}

.insight-list-item:hover .insight-keyword {
    background: linear-gradient(135deg, rgba(7, 57, 168, 0.2) 0%, rgba(7, 57, 168, 0.15) 100%);
    border-color: rgba(7, 57, 168, 0.3);
    transform: scale(1.05);
    box-shadow: 0 4px 8px rgba(7, 57, 168, 0.15);
}

.insight-list-item .insight-title {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text);
    margin: 0;
    line-height: 1.7;
    flex: 1;
    transition: all 0.3s ease;
    position: relative;
    padding-left: 0.5rem;
}

.insight-list-item:hover .insight-title {
    color: var(--color-accent);
    font-weight: 600;
}

.insight-list-item .insight-title::after {
    content: '→';
    position: absolute;
    right: -1.5rem;
    opacity: 0;
    transition: all 0.3s ease;
    color: var(--color-accent);
    font-weight: 600;
}

.insight-list-item:hover .insight-title::after {
    opacity: 1;
    right: -2rem;
}

/* 分页样式 */
.insights-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-top: 3rem;
    padding: 2rem 0;
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--color-primary);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--color-accent);
    color: #ffffff;
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(7, 57, 168, 0.2);
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pagination-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    color: var(--color-text);
    font-weight: 500;
}

.pagination-info span {
    color: var(--color-accent);
    font-weight: 600;
}

.insight-list-item.hidden {
    display: none;
}

@media (max-width: 768px) {
    .insight-list-item {
        padding: 1.25rem 1rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .insight-keyword {
        min-width: auto;
        padding: 0.4rem 0.8rem;
    }
    
    .insight-list-item .insight-title {
        font-size: 1rem;
        padding-left: 0;
    }
    
    .insight-list-item:hover {
        transform: translateX(0);
    }
    
    .insight-list-item .insight-title::after {
        display: none;
    }
    
    .insights-pagination {
        flex-direction: column;
        gap: 1rem;
    }
    
    .pagination-btn {
        width: 100%;
        justify-content: center;
        max-width: 200px;
    }
}


.insight-card {
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.insight-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.insight-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.insight-category {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(7, 57, 168, 0.1);
    color: var(--color-accent);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.insight-date {
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.insight-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.insight-subtitle {
    font-size: 1rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
    font-weight: 500;
}

.insight-excerpt {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.insight-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.insight-tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: rgba(7, 57, 168, 0.05);
    color: var(--color-accent);
    border-radius: 12px;
    font-size: 0.8rem;
    border: 1px solid rgba(7, 57, 168, 0.1);
}

.insight-read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: 2px solid var(--color-accent);
    color: var(--color-accent);
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    justify-content: center;
}

.insight-read-more:hover {
    background: var(--color-accent);
    color: #ffffff;
    transform: translateX(4px);
}

/* 文章详情模态框 */
.insight-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    overflow-y: auto;
}

.insight-modal.active {
    display: block;
}

.insight-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
}

.insight-modal-content {
    position: relative;
    max-width: 900px;
    margin: 2rem auto;
    background: var(--color-primary);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 3rem;
    margin-top: 2rem;
    margin-bottom: 2rem;
}

.insight-modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 50%;
    font-size: 1.5rem;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
}

.insight-modal-close:hover {
    background: rgba(0, 0, 0, 0.1);
    transform: rotate(90deg);
}

/* 文章详情页面样式 */
.article-detail {
    padding: 80px 0 100px;
    min-height: calc(100vh - 200px);
}

@media (max-width: 768px) {
    .article-detail {
        padding: 60px 0 80px;
    }
}

.insight-article {
    color: var(--color-text);
    line-height: 1.8;
    padding: 2rem 0;
}

.insight-article h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.insight-article .article-subtitle {
    font-size: 1.2rem;
    color: var(--color-accent);
    margin-bottom: 2rem;
    font-weight: 500;
}

.insight-article .article-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--glass-border);
    flex-wrap: wrap;
}

.insight-article .article-meta span {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.insight-article h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--glass-border);
}

.insight-article h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.insight-article h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.insight-article p {
    margin-bottom: 1.25rem;
    color: var(--color-text);
    line-height: 1.8;
}

.insight-article ul,
.insight-article ol {
    margin-bottom: 1.25rem;
    padding-left: 2rem;
}

.insight-article li {
    margin-bottom: 0.75rem;
    line-height: 1.8;
    color: var(--color-text);
}

.insight-article li strong {
    color: var(--color-accent);
    font-weight: 600;
}

.insight-article table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background: var(--color-primary);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.insight-article table th {
    background: rgba(7, 57, 168, 0.1);
    color: var(--color-accent);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--glass-border);
}

.insight-article table td {
    padding: 1rem;
    border-bottom: 1px solid var(--glass-border);
    color: var(--color-text);
}

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

.insight-article .highlight-box {
    background: rgba(7, 57, 168, 0.05);
    border-left: 4px solid var(--color-accent);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 8px;
}

.insight-article .highlight-box p {
    margin-bottom: 0.5rem;
}

.insight-article .highlight-box p:last-child {
    margin-bottom: 0;
}

/* 声明样式 - 区别于正文 */
.insight-article .disclosure-box {
    background: rgba(255, 255, 255, 0.05);
    border-left: 4px solid var(--color-accent);
    padding: 1.5rem;
    margin: 3rem 0;
    border-radius: 8px;
    font-family: 'Georgia', 'Times New Roman', 'SimSun', '宋体', serif;
}

.insight-article .disclosure-box h3 {
    font-family: 'Georgia', 'Times New Roman', 'SimSun', '宋体', serif;
    font-size: 1rem;
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--color-accent);
    letter-spacing: 0.5px;
}

.insight-article .disclosure-box p {
    font-family: 'Georgia', 'Times New Roman', 'SimSun', '宋体', serif;
    font-size: 0.85rem;
    line-height: 1.7;
    margin-bottom: 0.5rem;
    color: var(--color-text);
    letter-spacing: 0.2px;
}

.insight-article .disclosure-box p:last-child {
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .insight-article .disclosure-box {
        padding: 1.25rem;
        margin: 2rem 0;
    }
    
    .insight-article .disclosure-box h3 {
        font-size: 0.95rem;
    }
    
    .insight-article .disclosure-box p {
        font-size: 0.8rem;
    }
}

/* 图表样式 */
.insight-article .chart-container {
    margin: 2.5rem 0;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.insight-article .chart-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 1rem;
    text-align: center;
}

.insight-article .chart-note {
    font-size: 0.85rem;
    color: var(--color-text-light);
    text-align: center;
    margin-top: 1rem;
    font-style: italic;
}

/* 柱状图 */
.insight-article .bar-chart {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 1.5rem 0;
}

.insight-article .bar-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.insight-article .bar-label {
    min-width: 120px;
    font-size: 0.9rem;
    color: var(--color-text);
    font-weight: 500;
}

.insight-article .bar-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.insight-article .bar {
    height: 30px;
    background: linear-gradient(90deg, var(--color-accent), rgba(7, 57, 168, 0.7));
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 0.5rem;
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
    min-width: 30px;
    transition: transform 0.3s ease;
}

.insight-article .bar:hover {
    transform: scaleY(1.1);
}

.insight-article .bar-value {
    min-width: 60px;
    text-align: right;
    font-size: 0.9rem;
    color: var(--color-text);
    font-weight: 600;
}

/* 饼图/环形图 */
.insight-article .pie-chart {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 2rem 0;
    flex-wrap: wrap;
    gap: 2rem;
}

.insight-article .pie-chart-svg {
    width: 200px;
    height: 200px;
}

.insight-article .pie-legend {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.insight-article .pie-legend-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.insight-article .pie-legend-color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    flex-shrink: 0;
}

.insight-article .pie-legend-label {
    font-size: 0.9rem;
    color: var(--color-text);
}

.insight-article .pie-legend-value {
    font-size: 0.9rem;
    color: var(--color-accent);
    font-weight: 600;
    margin-left: auto;
}

/* 分组条形图 */
.insight-article .grouped-bar-chart {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.insight-article .grouped-bar-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.insight-article .grouped-bar-group-title {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.insight-article .grouped-bar-row {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.insight-article .grouped-bar-label {
    min-width: 100px;
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.insight-article .grouped-bars {
    flex: 1;
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.insight-article .grouped-bar {
    flex: 1;
    height: 25px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    min-width: 40px;
}

.insight-article .grouped-bar.nyse {
    background: linear-gradient(90deg, #1e40af, #3b82f6);
}

.insight-article .grouped-bar.nasdaq {
    background: linear-gradient(90deg, #059669, #10b981);
}

.insight-article .grouped-bar.txse {
    background: linear-gradient(90deg, #7c3aed, #a78bfa);
}

/* 新的分组柱状图样式（用于对比图表） */
.insight-article .grouped-bar-item {
    margin-bottom: 2rem;
}

.insight-article .grouped-bar-item .grouped-bar-label {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
    min-width: 120px;
}

.insight-article .grouped-bar-item .grouped-bars {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
}

.insight-article .grouped-bar-item .grouped-bar-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.insight-article .grouped-bar-item .grouped-bar {
    width: 100%;
    height: 35px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    position: relative;
    transition: all 0.3s;
}

.insight-article .grouped-bar-item .grouped-bar:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.insight-article .grouped-bar-item .grouped-bar-text {
    position: relative;
    z-index: 1;
}

.insight-article .grouped-bar-item .grouped-bar-label-small {
    font-size: 0.75rem;
    color: var(--color-text-light);
    text-align: center;
}

.insight-article .grouped-bar-item .grouped-bar-note {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--color-text-light);
    text-align: center;
    font-style: italic;
}

/* 流程图 */
.insight-article .flowchart {
    margin: 2rem 0;
    padding: 1.5rem;
    background: rgba(7, 57, 168, 0.02);
    border-radius: 12px;
}

.insight-article .flowchart-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    align-items: center;
}

.insight-article .flowchart-step {
    flex: 1;
    padding: 1rem;
    background: white;
    border: 2px solid var(--color-accent);
    border-radius: 8px;
    text-align: center;
    font-size: 0.9rem;
    color: var(--color-text);
    font-weight: 500;
    position: relative;
}

.insight-article .flowchart-arrow {
    font-size: 1.5rem;
    color: var(--color-accent);
    flex-shrink: 0;
}

.insight-article .flowchart-dual {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

.insight-article .flowchart-column {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.insight-article .flowchart-column-title {
    font-weight: 600;
    color: var(--color-accent);
    text-align: center;
    padding: 0.75rem;
    background: rgba(7, 57, 168, 0.1);
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

/* 思维导图/二分图 */
.insight-article .mindmap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
    padding: 1.5rem;
    background: rgba(7, 57, 168, 0.02);
    border-radius: 12px;
}

.insight-article .mindmap-side {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.insight-article .mindmap-title {
    font-weight: 600;
    color: var(--color-accent);
    font-size: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-accent);
    margin-bottom: 0.5rem;
}

.insight-article .mindmap-item {
    padding: 0.75rem;
    background: white;
    border-left: 3px solid var(--color-accent);
    border-radius: 4px;
    font-size: 0.9rem;
    color: var(--color-text);
}

/* 移动端优化 */
@media (max-width: 768px) {
    .insights-content {
        grid-template-columns: 1fr;
    }
    
    .insight-modal-content {
        margin: 1rem;
        padding: 2rem 1.5rem;
        border-radius: 12px;
    }
    
    .insight-modal-close {
        top: 1rem;
        right: 1rem;
        width: 35px;
        height: 35px;
    }
    
    .insight-article h1 {
        font-size: 1.5rem;
    }
    
    .insight-article h2 {
        font-size: 1.25rem;
    }
    
    .insight-article h3 {
        font-size: 1.1rem;
    }
    
    .insight-article table {
        font-size: 0.9rem;
    }
    
    .insight-article table th,
    .insight-article table td {
        padding: 0.75rem 0.5rem;
    }
    
    .insight-article .chart-container {
        padding: 1rem;
        margin: 1.5rem 0;
    }
    
    .insight-article .bar-label {
        min-width: 80px;
        font-size: 0.8rem;
    }
    
    .insight-article .pie-chart {
        flex-direction: column;
        gap: 1rem;
    }
    
    .insight-article .pie-chart-svg {
        width: 150px;
        height: 150px;
    }
    
    .insight-article .mindmap {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .insight-article .flowchart-dual {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .insight-article .grouped-bar-chart {
        gap: 1rem;
    }
    
    .insight-article .grouped-bar-label {
        min-width: 70px;
        font-size: 0.75rem;
    }
}

/* 小屏手机优化 */
@media (max-width: 480px) {
    .detailed-service-item {
        padding-top: 70px;
        padding-bottom: 40px;
    }
    
    .detailed-service-item .service-content-wrapper {
        padding: 0 3%;
    }
    
    .detailed-service-title {
        font-size: 1.75rem;
        margin-bottom: 1.5rem;
        padding-bottom: 1rem;
    }
    
    .detailed-service-list {
        gap: 1rem;
    }
    
    .detailed-service-list li {
        padding: 1.25rem;
        font-size: 0.9rem;
    }
    
    .service-subtitle {
        font-size: 0.95rem !important;
        margin-bottom: 0.5rem;
    }
    
    .service-description {
        font-size: 0.85rem !important;
    }
}

/* ============================================
   CES工具页面样式
   ============================================ */
.ces-tools {
    padding: 80px 0;
    min-height: calc(100vh - 200px);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.tool-card {
    position: relative;
    padding: 2.5rem;
    transition: var(--transition);
    border: 1px solid var(--glass-border);
    text-align: center;
}

.tool-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.tool-icon-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    border-radius: 16px;
    background: rgba(7, 57, 168, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    transition: var(--transition);
}

.tool-card:hover .tool-icon-wrapper {
    background: rgba(7, 57, 168, 0.12);
    transform: scale(1.05);
}

.tool-icon-wrapper svg {
    width: 48px;
    height: 48px;
}

.tool-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.tool-description {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.tool-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.feature-tag {
    padding: 0.4rem 0.875rem;
    background: rgba(7, 57, 168, 0.08);
    color: var(--color-accent);
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(7, 57, 168, 0.15);
}

.tool-link-btn {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--color-accent);
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    width: 100%;
    text-align: center;
}

.tool-link-btn:hover {
    background: #052d7a;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.tools-note {
    margin-top: 3rem;
    padding: 2rem;
    border-left: 4px solid var(--color-accent);
}

.note-content {
    flex: 1;
}

.note-content p {
    margin-bottom: 0.5rem;
    color: var(--color-text);
    line-height: 1.7;
}

.note-content p:first-child {
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
}

.note-content a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.note-content a:hover {
    border-bottom-color: var(--color-accent);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .tools-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .tool-card {
        padding: 2rem;
    }
    
    .tool-title {
        font-size: 1.25rem;
    }
}