.application-section {
    width: 100%;
    padding: 60px 0;
}

.btn {
    display: inline-block;
    padding: 10px 32px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 0.95rem;
    background: #eef2f6;
    color: #0b1a2e;
    transition:
            background 0.2s,
            transform 0.1s;
    border: none;
    cursor: pointer;
    text-decoration: none;
}
.btn:hover {
    background: #dce3eb;
    text-decoration: none;
    transform: translateY(-1px);
}
.btn-primary {
    background: var(--secondary-color);
    color: #fff;
}
.btn-primary:hover {
    background: #3a5a8c;
    color: #fff;
}
.btn-outline {
    background: transparent;
    border: 2px solid var(--secondary-color);
    color: var(--secondary-color);
}
.btn-outline:hover {
    background: var(--secondary-color);
    color: #fff;
}
.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.bg-01 {
    background: linear-gradient(135deg, #e6f0fa 0%, #f0f5fb 100%);
}
.bg-02 {
    background: #ffffff;
}
.bg-03 {
    background: #f8fafc;
}
.bg-04 {
    background: var(--secondary-color);
}
.bg-05 {
    background: #ffffff;
    border-bottom: 1px solid #e9edf2;
}

.application-section .container {
    max-width: 1400px;
    margin: 0 auto;
}

.btn-outline {
    background: transparent;
    border: 2px solid #fff;
    color: #fff;
}
.btn-outline:hover {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    color: #fff;
}

/* ===== 模块内部样式（仅作用于对应容器内） ===== */

/* ---- Hero ---- */

.hero-section {
    background: rgba(74, 111, 165, 0.4) url(/dist/img/application_01.png)
    no-repeat center;
    background-blend-mode: multiply;
    background-size: cover;
    min-height: 600px;
    display: flex;
    align-items: center;
}

.hero-grid {
    width: 100%;
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: center;
}
.hero-text {
    /*margin-bottom: 30px;*/
}
.hero-text h1 {
    font-size: 36px;
    font-weight: 700;
    line-height: 1.25;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}
.hero-text .sub {
    font-size: 18px;
    color: #fff;
    margin: 12px 0 8px;
}

/* ---- 标题 ---- */
.section-title {
    font-size: 32px;
    font-weight: 600;
    line-height: 1.25;
    color: var(--title-color);
    margin-bottom: 1rem;
}
.section-subtitle {
    font-size: 18px;
    color: #475569;
    font-weight: 500;
    max-width: 720px;
    margin-bottom: 28px;
}

/* ---- 应用卡片（六宫格） ---- */
.nav-section {
    padding: 0;
    background: #fff;
    border-bottom: 1px solid #ccc;
}

.app-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.app-card {
    padding: 20px 0;
    color: #fff;
    text-align: center;
    transition:
            box-shadow 0.2s,
            transform 0.15s;
}

.app-card:hover {
    background-color: var(--secondary-color);
    cursor: pointer;
}

.app-card:hover a {
    color: #fff;
    border-color: var(--secondary-color);
}

.app-card a {
    font-weight: 600;
    color: #000;
    text-decoration: none;
}

/* ---- 挑战卡片 ---- */
.challenge-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 8px;
}
.challenge-item {
    background: #fff;
    border-radius: 16px;
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    transition: box-shadow 0.2s;
}
.challenge-item:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
}
.content-wrap {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}
.challenge-item .icon {
    font-size: 32px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.challenge-item .icon i {
    color: #4a6fa5;
}
.challenge-item .content {
    flex: 1;
}
.challenge-item .content .label {
    font-weight: 500;
    color: #0b1a2e;
    display: block;
    font-size: 20px;
    margin-bottom: 6px;
}
.challenge-item .content p {
    margin: 0 0 6px;
    line-height: 1.7;
}
.challenge-item .solution {
    width: 100%;
    background: #f1f6fb;
    padding: 10px 18px;
    border-radius: 30px;
    font-weight: 500;
    color: var(--secondary-color);
}
.challenge-item .solution a {
    color: var(--secondary-color);
    font-weight: 600;
    text-decoration: none;
    margin: 0 4px;
}
.challenge-item .solution a:hover {
    text-decoration: underline;
}
/* ---- 应用详情（交替布局） ---- */

.app-detail-row {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid #e9edf2;
}
.app-detail-row:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}
.detail-text {
    width: 60%;
}
.detail-img {
    width: 40%;
    height: 100%;
}
.detail-img img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    object-fit: cover;
}

/* 左文右图（默认） */
.row-text-img .detail-text {
    order: 1;
}
.row-text-img .detail-img {
    order: 2;
}
/* 左图右文 */
.row-img-text .detail-text {
    order: 2;
}
.row-img-text .detail-img {
    order: 1;
}

.detail-text .badge {
    background: #dbeafe;
    color: var(--secondary-color);
    padding: 2px 14px;
    border-radius: 30px;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 8px;
}
.detail-text ul {
    padding-left: 20px;
    margin: 6px 0 10px;
}
.detail-text ul li {
    margin-bottom: 4px;
}

.detail-text p {
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 10px;
}

/* ========== 产品卡片组样式 ========== */
.product-card-group {
    display: flex;
    gap: 8px;
    margin: 10px 0 14px;
}
.product-card {
    width: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    padding: 10px;
    border-radius: 5px;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid #ccc;
}
.product-card:hover {
    background: #fff;
}
.product-card img {
    width: 100%;
    height: 80px;
    object-fit: contain;
}
.product-card span {
    width: 100%;
    font-size: 15px;
    font-weight: 400;
    color: var(--text-color);
    text-align: center;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;

}

.product-card span:hover {
    text-decoration: underline;
}

.tip-box {
    background: #f1f6fb;
    border-left: 4px solid var(--secondary-color);
    padding: 14px 20px;
    border-radius: 0 8px 8px 0;
    margin-top: 14px;
}
.tip-box strong {
    color: var(--secondary-color);
}

/* ---- 行业入口 ---- */
.industry-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin: 20px 0 30px;
}
.industry-item {
    background: #fff;
    border-radius: 10px;
    border: 1px solid #eef2f6;
    text-align: center;
    transition:
            transform 0.15s ease,
            box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow: hidden;
}

.industry-img img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.industry-info {
    padding: 15px;
}

.industry-name {
    font-size: 18px;
    font-weight: 500;
    color: #0b1a2e;
}
.industry-item p {
    line-height: 1.7;
    margin: 0;
    text-align: left;
}
.industry-link {
    margin-top: 6px;
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
}
.industry-link:hover {
    text-decoration: underline;
}
.industry-more-wrap {
    text-align: center;
    margin-top: 16px;
}
.all-industry-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
}
.all-industry-link:hover {
    text-decoration: underline;
}

/* ---- FAQ ---- */
.faq-list {
    max-width: 1400px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 20px;
    padding: 20px 0;
    border-bottom: 1px dotted var(--secondary-color);
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.faq-item h3 {
    font-size: 18px;
    font-weight: 500;
    color: var(--title-color);
    margin-bottom: 10px;
}

.faq-item p {
    color: var(--text-color);
    line-height: 1.6;
}

/* ---- CTA 深色 ---- */
.cta-wrapper {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.cta-wrapper h2 {
    color: #fff;
    margin-bottom: 4px;
    font-size: 2rem;
}
.cta-wrapper p {
    color: #cbd5e1;
}
.cta-wrapper .btn-primary {
    background: #fff;
    color: #0b1a2e;
}
.cta-wrapper .btn-primary:hover {
    background: #e6edf5;
}
.cta-info {
    display: flex;
    align-items: center;
    gap: 16px;
}