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

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* 主色调定义 */
:root {
    --primary-blue: #0077B5;
    --secondary-blue: #006097;
    --accent-orange: #FF6B35;
    --accent-yellow: #FFD700;
    --light-blue: #E8F4FD;
    --dark-blue: #004B7C;
    --white: #FFFFFF;
    --gray-light: #F8F9FA;
    --gray-dark: #6C757D;
}

/* 导航栏 */
.navbar {
    background: linear-gradient(135deg, rgba(0,119,181,0.3), rgba(0,96,151,0.3));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 1rem 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 119, 181, 0.2);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    color: var(--white);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-text .highlight {
    color: var(--accent-yellow);
}

.hero-text p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
}

.cta-button {
    display: inline-block;
    background: #fff;
    color: var(--primary-blue);
    padding: 0.8rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 119, 181, 0.08);
    border: 2px solid var(--primary-blue);
    font-size: 1.1rem;
}
.cta-button:hover {
    background: var(--accent-orange);
    color: #fff;
    border-color: var(--accent-orange);
}

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

.hero-image {
    position: relative;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.hero-overlay {
    position: absolute;
    top: 20px;
    right: 20px;
}

.hero-badge {
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-yellow));
    color: var(--white);
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 5px 15px rgba(255, 107, 53, 0.3);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.badge-icon {
    font-size: 1.2rem;
}

.badge-text {
    font-weight: bold;
    font-size: 0.9rem;
}

/* 统计区域 */
.stats {
    background: var(--white);
    padding: 5rem 0;
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--light-blue);
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.stat-number .plus-sign {
    font-size: 1.5rem;
    vertical-align: super;
}

.stat-label {
    color: var(--gray-dark);
    font-size: 1.1rem;
}

/* 功能区域 */
.features {
    background: var(--gray-light);
    padding: 5rem 0;
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--dark-blue);
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--gray-dark);
    font-size: 1.2rem;
    margin-bottom: 4rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}
.feature-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.feature-content {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}
.feature-image {
    margin-top: 1.5rem;
    align-self: flex-end;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-orange));
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--white);
    font-size: 1.5rem;
}

.feature-title {
    font-size: 1.5rem;
    color: var(--dark-blue);
    margin-bottom: 1rem;
}

.feature-description {
    color: var(--gray-dark);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.feature-image img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-image img {
    transform: scale(1.05);
}

/* 解决方案 */
.solutions {
    background: #fff  var(--gray-light);
    padding: 5rem 0;
}

.solutions-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.solutions-header {
    text-align: center;
    margin-bottom: 3rem;
}

/* 标签切换样式 */
.solution-tabs {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
    gap: 1.5rem;
    /* max-width: 700px; */
    margin-left: auto;
    margin-right: auto;
}

.tab-button {
    background: var(--white);
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    padding: 1.8rem 2rem;
    border-radius: 12px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 119, 181, 0.1);
    position: relative;
    overflow: hidden;
    min-width: 280px;
    width: 50%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
    text-align: left;
    height: 110px;
}

.tab-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.tab-button .tab-content-wrapper {
    position: relative;
    z-index: 2;
    width: 100%;
}

.tab-button .tab-title {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 0.4rem;
    display: block;
}

.tab-button .tab-subtitle {
    font-size: 0.85rem;
    font-weight: normal;
    opacity: 0.8;
    display: block;
    line-height: 1.3;
}

.tab-button .tab-arrow {
    position: absolute;
    top: 1.3rem;
    right: 1.3rem;
    font-size: 1.3rem;
    transition: transform 0.3s ease;
    z-index: 2;
}

.tab-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 119, 181, 0.2);
}

.tab-button:hover .tab-arrow {
    transform: translateX(3px);
}

.tab-button.active {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    box-shadow: 0 6px 20px rgba(0, 119, 181, 0.3);
    border-color: var(--primary-blue);
}

.tab-button.active::before {
    opacity: 1;
}

.tab-button.active .tab-arrow {
    transform: translateX(3px);
}

.tab-button.active .tab-subtitle {
    opacity: 0.9;
}

/* 标签内容样式 */
.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

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

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

/* 解决方案布局 */
.solution-layout {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    background: var(--white);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 3rem;
}

.solution-left {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    text-align: center;
}

.solution-right {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.solution-features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.solution-features-section {
    background: var(--gray-light);
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary-blue);
}

.solution-features-section h4 {
    color: var(--primary-blue);
    font-size: 1.1rem;
    font-weight: bold;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.solution-features {
    list-style: none;
    padding: 0;
}

.solution-features li {
    padding: 0.5rem 0;
    color: var(--gray-dark);
    font-size: 0.95rem;
    line-height: 1.5;
    border-bottom: 1px solid rgba(0, 119, 181, 0.1);
    transition: all 0.3s ease;
    position: relative;
    padding-left: 1.5rem;
}

.solution-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

/* 缺点列表项使用X标记 */
.solution-features-section.disadvantages li::before {
    content: '✗';
    color: #dc3545;
}

.solution-features li:hover {
    color: var(--primary-blue);
    padding-left: 0.5rem;
    background: rgba(0, 119, 181, 0.05);
    border-radius: 4px;
}

.solution-features li:last-child {
    border-bottom: none;
}

/* 原有的解决方案样式保持不变 */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.solution-card {
    background: var(--white);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.solution-title {
    color: var(--primary-blue);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: bold;
}

.solution-features {
    list-style: none;
    margin-top: 1rem;
}

.solution-features li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
    position: relative;
    padding-left: 1.5rem;
}

.solution-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

/* 客户案例 */
.case-studies {
    background: var(--gray-light);
    padding: 5rem 0;
}

.case-studies-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.case-card {
    background: var(--white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    margin-top: 3rem;
}

.case-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 2rem;
}

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

.case-image img {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.case-image img:hover {
    transform: scale(1.05);
}

.case-quote {
    font-size: 1.3rem;
    color: var(--gray-dark);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    padding: 0 0.5rem;
    font-style: italic;
}

.case-content h3 {
    color: var(--primary-blue);
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
}

.case-content p {
    color: var(--gray-dark);
    font-size: 1.2rem;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.case-content p li {
    margin-left: 1.5rem;
    font-size: 0.85rem;
    line-height: 1.4;
    margin-bottom: 0.3rem;
}

.case-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.case-stat {
    text-align: center;
    padding: 1rem;
}

.case-stat-number {
    font-size: 2.2rem;
    font-weight: bold;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.case-stat-number .plus-sign {
    font-size: 1.8rem;
    color: var(--accent-orange);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--gray-dark);
    line-height: 1.3;
    font-weight: 500;
}

/* 投资回报率统计 */
.roi-stats {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 0;
    background: none;
    box-shadow: none;
    margin-top: 2rem;
}
.roi-stat {
    flex: 1;
    background: none;
    color: var(--dark-blue);
    text-align: center;
    padding: 2rem 0;
    border-radius: 0;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.roi-stat:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 25%;
    height: 50%;
    width: 1px;
    background: rgba(0,119,181,0.1);
}
.roi-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--accent-orange);
    margin-bottom: 0.5rem;
}
.roi-label {
    font-size: 1rem;
    opacity: 0.9;
    color: var(--dark-blue);
}

/* 功能案例卡片网格 */
.case-cards-grid {
    display: flex;
    /* overflow: hidden; */
    width: 100%;
    position: relative;
    margin-top: 3rem;
    min-height: 320px;
}
.feature-case-card {
    min-width: 100%;
    transition: transform 0.5s cubic-bezier(.4,0,.2,1);
    opacity: 0;
    pointer-events: none;
    position: absolute;
    left: 0; top: 0;
    display: flex;
    flex-direction: row;
    align-items: center;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 2.5rem;
}
.feature-case-card.active {
    opacity: 1;
    pointer-events: auto;
    position: relative;
    transform: translateX(0);
}
.carousel-left {
    flex: 1 1 0;
    padding-right: 2rem;
}
.carousel-right {
    flex: 1 1 0;
    text-align: right;
}
.carousel-right img {
    max-width: 560px;
    width: 100%;
    height: 320px;
    object-fit: cover;
    border-radius: 12px;
    /* box-shadow: 0 5px 20px rgba(0,0,0,0.08); */
}
@media (max-width: 900px) {
    .feature-case-card {
        flex-direction: column;
        text-align: left;
        padding: 1.2rem;
    }
    .carousel-left {
        padding-right: 0;
        margin-bottom: 1.2rem;
    }
    .carousel-right img {
        max-width: 100%;
        height: 256px;
    }
}
@media (max-width: 600px) {
    .case-cards-grid {
        min-height: 220px;
    }
    .feature-case-card {
        padding: 2rem;
    }
    .carousel-right img {
        height: 192px;
    }
}
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
}
.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-dark);
    opacity: 0.3;
    transition: background 0.3s, opacity 0.3s;
    cursor: pointer;
}
.carousel-dot.active {
    background: var(--accent-orange);
    opacity: 1;
}
@media (max-width: 768px) {
    .case-cards-grid {
        min-height: 350px;
    }
}

/* 页脚 */
.footer {
    background: var(--dark-blue);
    color: var(--white);
    padding: 1.5rem 0;
    text-align: center;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

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

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

    .case-stats {
        grid-template-columns: 1fr;
    }

    .case-header {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .roi-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .feature-card,
    .solution-card,
    .case-card {
        padding: 2rem;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.6s ease-out;
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--white);
    text-align: center;
}

.scroll-indicator p {
    font-size: 0.9rem;
    margin: 0;
}

.scroll-arrow {
    width: 30px;
    height: 40px;
    margin: 0 auto 1rem;
    animation: bounce 2s infinite;
}

.scroll-arrow svg {
    width: 100%;
    height: 100%;
    transform: rotate(360deg);
}

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

/* 优化表单样式 */
.form-contact-row {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem 4rem 2rem;
    display: flex;
    gap: 3rem;
    align-items: flex-start;
    background: var(--white);
    border-radius: 18px;
    box-shadow: 0 8px 32px rgba(0,119,181,0.08);
}
.contact-info {
    flex: 1;
    background: none;
    color: var(--dark-blue);
    padding: 0;
    border-radius: 0;
    box-shadow: none;
}
.contact-info h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-blue);
    font-weight: bold;
}
.contact-info p, .contact-info strong {
    color: var(--dark-blue);
    font-size: 1rem;
    line-height: 1.8;
}
.form-container {
    flex: 1;
    background: var(--gray-light);
    padding: 2.5rem 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,119,181,0.06);
}
.form-container .section-title {
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    font-weight: bold;
}
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}
.form-group label {
    font-weight: 500;
    color: var(--dark-blue);
    margin-bottom: 0.3rem;
    font-size: 1rem;
}
.form-group input {
    padding: 0.8rem 1rem;
    border: 1.5px solid var(--gray-dark);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--white);
    transition: border 0.2s;
}
.form-group input:focus {
    border-color: var(--primary-blue);
    outline: none;
}
.contact-form .cta-button {
    margin-top: 0.5rem;
    width: 120px;
    align-self: flex-end;
    padding: 0.6rem 0;
    font-size: 1rem;
    border-radius: 20px;
    background: #fff;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    box-shadow: 0 2px 8px rgba(0,119,181,0.08);
}
.contact-form .cta-button:hover {
    background: var(--accent-orange);
    color: #fff;
    border-color: var(--accent-orange);
}
.form-success {
    position: absolute;
    left: -8.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.95rem;
    color: #FFD600;
    background: none;
    border: none;
    padding: 0.2rem 0.7rem;
    border-radius: 6px;
    font-weight: bold;
    z-index: 10;
    display: inline-block;
    box-shadow: none;
    margin: 0;
    text-align: left;
}
@media (max-width: 900px) {
    .form-contact-row {
        flex-direction: column;
        gap: 2rem;
        padding: 0 1rem 2rem 1rem;
    }
    .form-container {
        padding: 1.5rem 1rem;
    }
}

/* 表单与联系我们区域左右分栏且无背景框，风格与footer一致 */
.contact-form-section {
    background: #005987;
    padding: 4rem 0 0 0;
}
.form-contact-row {
    display: flex;
    gap: 3rem;
    align-items: flex-start;
    max-width: 1100px;
    margin: 0 auto;
    background: none;
    box-shadow: none;
    border-radius: 0;
}
.contact-info {
    flex: 1;
    color: #fff;
    background: none;
    box-shadow: none;
    border-radius: 0;
    padding: 0 2rem 0 0;
}
.form-container {
    flex: 1;
    background: none;
    box-shadow: none;
    border-radius: 0;
    padding: 0 2rem 0 0;
    min-width: 340px;
    max-width: 420px;
}
.form-container .section-title {
    color: #fff;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    font-weight: bold;
}
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}
.form-group {
    display: flex;
    align-items: center;
    margin-bottom: 0.2rem;
}
.form-group label {
    font-weight: 500;
    color: #fff;
    font-size: 1rem;
    width: 90px;
    text-align: right;
    margin-right: 0.7rem;
    flex-shrink: 0;
}
.form-group input {
    flex: 1;
    padding: 0.5rem 0.7rem;
    border: 1.5px solid #fff;
    border-radius: 8px;
    font-size: 1rem;
    background: rgba(255,255,255,0.15);
    color: #fff;
    transition: border 0.2s, background 0.2s;
    min-width: 0;
}
.form-group input:focus {
    border-color: var(--accent-yellow);
    outline: none;
    background: #fff;
    color: #005987;
}
.contact-form .cta-button {
    margin-top: 0.5rem;
    width: 120px;
    align-self: flex-end;
    padding: 0.6rem 0;
    font-size: 1rem;
    border-radius: 20px;
    background: #fff;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    box-shadow: 0 2px 8px rgba(0,119,181,0.08);
}
.contact-form .cta-button:hover {
    background: var(--accent-orange);
    color: #fff;
    border-color: var(--accent-orange);
}
.form-success {
    background: #e6f9ed;
    color: #1a7f37;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    font-weight: bold;
    margin-top: 1rem;
    box-shadow: 0 2px 8px rgba(40,167,69,0.08);
}
@media (max-width: 900px) {
    .form-contact-row {
        flex-direction: column;
        gap: 2rem;
        padding: 0 1rem 2rem 1rem;
    }
    .contact-info {
        padding: 0 0 2rem 0;
    }
} 

@media (max-width: 600px) {
  .roi-stats {
    flex-direction: column;
    gap: 0.5rem;
  }
  .roi-stat {
    padding: 1.2rem 0;
  }
  .roi-stat:not(:last-child)::after {
    display: none;
  }
} 

@media (max-width: 600px) {
  .form-contact-row {
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 0 0.5rem 2rem 0.5rem !important;
  }
  .form-container {
    margin: 0 auto !important;
    width: 100% !important;
    max-width: 340px !important;
    padding: 0 0.5rem 1.2rem 0.5rem !important;
    box-sizing: border-box !important;
    background: none !important;
    box-shadow: none !important;
  }
  .form-container h2{
    text-align: center !important;

  }
  .form-container .section-title {
    text-align: center !important;
    width: 100% !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    display: block !important;
  }
  .contact-form {
    align-items: center !important;
    width: 100% !important;
  }
  .form-group {
    width: 100% !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    margin-bottom: 0.8rem !important;
  }
  .form-group label {
    width: 100% !important;
    text-align: left !important;
    margin-bottom: 0.3rem !important;
  }
  .form-group input {
    width: 100% !important;
  }
  .contact-form .cta-button {
    /* width: 100% !important; */
    text-align: center !important;
    margin-top: 1rem !important;
  }
} 

input::placeholder,
textarea::placeholder {
    color: #fff;
    opacity: 0.5;
}
input::-webkit-input-placeholder,
textarea::-webkit-input-placeholder {
    color: #fff;
    opacity: 0.5;
}
input:-ms-input-placeholder,
textarea:-ms-input-placeholder {
    color: #fff;
    opacity: 0.5;
}
input::-ms-input-placeholder,
textarea::-ms-input-placeholder {
    color: #fff;
    opacity: 0.5;
}
input:focus::placeholder,
input:hover:focus::placeholder,
textarea:focus::placeholder,
textarea:hover:focus::placeholder {
    color: #b0b0b0;
    opacity: 1;
}
input:focus::-webkit-input-placeholder,
input:hover:focus::-webkit-input-placeholder,
textarea:focus::-webkit-input-placeholder,
textarea:hover:focus::-webkit-input-placeholder {
    color: #b0b0b0;
    opacity: 1;
}
input:focus:-ms-input-placeholder,
input:hover:focus:-ms-input-placeholder,
textarea:focus:-ms-input-placeholder,
textarea:hover:focus:-ms-input-placeholder {
    color: #b0b0b0;
    opacity: 1;
}
input:focus::-ms-input-placeholder,
input:hover:focus::-ms-input-placeholder,
textarea:focus::-ms-input-placeholder,
textarea:hover:focus::-ms-input-placeholder {
    color: #b0b0b0;
    opacity: 1;
} 

/* 移动端隐藏LOGO、菜单和导航栏整体 */
@media (max-width: 768px) {
  .logo,
  .nav-links,
  .navbar {
    display: none !important;
  }
} 

@media (max-width: 768px) {
  .hero-content {
    flex-direction: column;
    align-items: center;
    padding-bottom: 2rem;
  }
  .scroll-indicator {
    position: static;
    margin-top: 1.5rem;
    z-index: auto;
    text-align: center;
    /* 确保居中显示 */
    left: auto;
    right: auto;
    transform: translateX(-50%);
  }
  .scroll-indicator p {
    white-space: nowrap;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    margin-left: 0.2rem;
  }
} 

/* 解决方案样式优化 */
.solution-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--light-blue);
}

.solution-badge {
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-yellow));
    color: var(--white);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(255, 107, 53, 0.3);
}

.solution-description {
    color: var(--gray-dark);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    padding: 0 0.5rem;
}



/* LinkedIn核心功能要点样式调整 */
/* .linkedin-core-points {
    background: var(--white);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-top: 1.5rem;
} */

.core-points-title {
    color: var(--primary-blue);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    text-align: center;
    font-weight: bold;
}

.core-points-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.core-point-item {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    padding: 0.5rem 0;
    background: none;
    border-radius: 0;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 119, 181, 0.1);
}

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

.core-point-item:hover {
    background: none;
    transform: none;
    padding-left: 0.5rem;
}

.point-number {
    background: var(--primary-blue);
    color: var(--white);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.point-content h4 {
    color: var(--primary-blue);
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
    font-weight: bold;
}

.point-content p {
    color: var(--gray-dark);
    font-size: 0.8rem;
    line-height: 1.4;
    margin: 0;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .solution-tabs {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        max-width: 100%;
    }
    
    .tab-button {
        width: 100%;
        max-width: 320px;
        height: auto;
        min-height: 100px;
        padding: 1.5rem;
    }
    
    .tab-button .tab-title {
        font-size: 1.1rem;
    }
    
    .tab-button .tab-subtitle {
        font-size: 0.8rem;
    }
    
    .tab-button .tab-arrow {
        top: 1.2rem;
        right: 1.2rem;
        font-size: 1.2rem;
    }
    
    .solution-layout {
        padding: 2rem;
        gap: 1.5rem;
    }
    
    .solution-right {
        gap: 1.5rem;
    }
    
    .solution-features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .solution-features-section {
        padding: 1.2rem;
    }
    
    .solution-features-section h4 {
        font-size: 1rem;
    }
    
    .solution-features li {
        font-size: 0.9rem;
        padding: 0.4rem 0;
    }
    
    .linkedin-core-points {
        padding: 1.2rem;
        margin-top: 1rem;
    }
    
    .core-points-title {
        font-size: 1rem;
        margin-bottom: 0.8rem;
    }
    
    .core-point-item {
        padding: 0.4rem 0;
        gap: 0.6rem;
    }
    
    .point-number {
        width: 20px;
        height: 20px;
        font-size: 0.7rem;
    }
    
    .point-content h4 {
        font-size: 0.85rem;
    }
    
    .point-content p {
        font-size: 0.75rem;
    }
    
    .solution-header {
        text-align: center;
    }
    
    .solution-badge {
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .solution-tabs {
        margin-top: 1.5rem;
    }
    
    .tab-button {
        padding: 1.2rem;
        min-height: 90px;
        /* max-width: 280px; */
    }
    
    .tab-button .tab-title {
        font-size: 1rem;
    }
    
    .tab-button .tab-subtitle {
        font-size: 0.75rem;
    }
    
    .tab-button .tab-arrow {
        top: 1rem;
        right: 1rem;
        font-size: 1.1rem;
    }
    
    .solution-layout {
        padding: 1.5rem;
        gap: 1.5rem;
    }
    
    .solution-features-grid {
        gap: 1rem;
    }
    
    .solution-features-section {
        padding: 1rem;
    }
    
    .solution-features-section h4 {
        font-size: 0.95rem;
    }
    
    .solution-features li {
        font-size: 0.85rem;
    }
    
    .solution-title {
        font-size: 1.3rem;
    }
    
    .solution-description {
        font-size: 0.9rem;
    }
    
    .linkedin-core-points {
        padding: 1rem;
        margin-top: 1rem;
    }
    
    .core-points-title {
        font-size: 0.95rem;
        margin-bottom: 0.8rem;
    }
    
    .core-point-item {
        padding: 0.3rem 0;
        gap: 0.5rem;
    }
    
    .point-number {
        width: 18px;
        height: 18px;
        font-size: 0.65rem;
    }
    
    .point-content h4 {
        font-size: 0.8rem;
    }
    
    .point-content p {
        font-size: 0.7rem;
    }
} 

@media (max-width: 768px) {
    .case-cards-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .case-quote {
        font-size: 1rem;
        padding: 0;
    }
    
    .case-content h3 {
        font-size: 1.2rem;
    }
    
    .case-content p {
        font-size: 0.85rem;
    }
    
    .case-content p li {
        font-size: 0.8rem;
        margin-left: 1rem;
    }
    
    .case-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .case-stat-number {
        font-size: 1.8rem;
    }
    
    .case-stat-number .plus-sign {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
}