/* 基础样式 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    background: #f7f7f7;
    color: #222;
}
.z19b4acontainer {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}
.z19b4asite-header {
    background: #1a237e;
    color: #fff;
    padding: 24px 0 12px 0;
}
.z19b4asite-header h1 {
    margin: 0 0 12px 0;
    font-size: 2.2rem;
    letter-spacing: 2px;
    text-align: center;
}
.z19b4amain-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}
.z19b4amain-nav li {
    margin: 0 18px;
}
.z19b4amain-nav a {
    color: #fff;
    text-decoration: none;
    font-size: 1.1rem;
    padding: 6px 0;
    transition: border-bottom 0.2s;
}
.z19b4amain-nav a:hover {
    border-bottom: 2px solid #fff;
}
.z19b4ahero {
    margin-top: 12px;
    margin-bottom: 36px;
    background: linear-gradient(90deg, #3949ab 60%, #7986cb 100%);
    color: #fff;
    padding: 48px 0 36px 0;
    text-align: center;
}
.z19b4ahero h2 {
    font-size: 2rem;
    margin-bottom: 16px;
}
.z19b4ahero p {
    font-size: 1.2rem;
    margin-bottom: 24px;
}
.z19b4acta-btn {
    display: inline-block;
    background: #ffb300;
    color: #222;
    padding: 12px 32px;
    border-radius: 24px;
    font-size: 1.1rem;
    font-weight: bold;
    text-decoration: none;
    transition: background 0.2s;
}
.z19b4acta-btn:hover {
    background: #ffa000;
}
section {
    margin: 36px 0;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(60,60,60,0.06);
    padding: 32px 0;
}
section h3 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 18px;
    color: #1a237e;
}
.z19b4aabout p {
    text-align: center;
    font-size: 1.1rem;
    color: #444;
}
.z19b4aservices .z19b4aservice-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
    padding: 0;
    list-style: none;
}
.z19b4aservices .z19b4aservice-list li {
    background: #e8eaf6;
    border-radius: 8px;
    padding: 18px 32px;
    font-size: 1.1rem;
    color: #222;
    min-width: 180px;
    text-align: center;
}
.z19b4aadvantages .z19b4aadvantage-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
}
.z19b4aadvantage-item {
    background: #f5f5f5;
    border-radius: 8px;
    padding: 18px 24px;
    min-width: 180px;
    flex: 1 1 200px;
    margin: 8px 0;
    text-align: center;
}
.z19b4aadvantage-item h4 {
    color: #3949ab;
    margin-bottom: 8px;
}
.z19b4aprocess-list {
    list-style: decimal inside;
    max-width: 600px;
    margin: 0 auto;
    padding: 0;
    color: #333;
    font-size: 1.1rem;
}
.z19b4acontact-form {
    max-width: 400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.z19b4acontact-form label {
    font-weight: bold;
    color: #1a237e;
}
.z19b4acontact-form input,
.z19b4acontact-form textarea {
    padding: 8px;
    border: 1px solid #bdbdbd;
    border-radius: 4px;
    font-size: 1rem;
    resize: none;
}
.z19b4acontact-form button {
    background: #3949ab;
    color: #fff;
    border: none;
    padding: 10px 0;
    border-radius: 4px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background 0.2s;
}
.z19b4acontact-form button:hover {
    background: #1a237e;
}
.z19b4asite-footer {
    background: #222;
    color: #fff;
    text-align: center;
    padding: 18px 0;
    border-radius: 0 0 12px 12px;
    font-size: 1rem;
    margin-top: 24px;
}
/* 响应式设计 */
@media (max-width: 900px) {
    .z19b4aservices .z19b4aservice-list,
    .z19b4aadvantages .z19b4aadvantage-list {
        flex-direction: column;
        gap: 12px;
    }
    .z19b4amain-nav ul {
        flex-direction: column;
        gap: 8px;
    }
}
@media (max-width: 600px) {
    .z19b4acontainer {
        padding: 0 6px;
    }
    .z19b4asite-header h1 {
        font-size: 1.3rem;
    }
    .z19b4ahero h2 {
        font-size: 1.2rem;
    }
    section {
        padding: 18px 0;
    }
    .z19b4aservices .z19b4aservice-list li,
    .z19b4aadvantage-item {
        min-width: 120px;
        padding: 10px 8px;
        font-size: 0.98rem;
    }
    .z19b4acontact-form {
        max-width: 98%;
    }
    .z19b4ahero {
        padding: 12px 0 12px 0;
    }
    .z19b4ahero-text,
    .z19b4ahero-img {
        margin: 0;
        padding: 0;
    }
    .z19b4ahero-img img {
        margin-bottom: 0;
        padding-bottom: 0;
    }
    .z19b4ahero-img,
    .z19b4ahero-flex {
        margin-bottom: 0;
        padding-bottom: 0;
    }
}
.z19b4afaq dl {
    max-width: 700px;
    margin: 0 auto;
    color: #333;
}
.z19b4afaq dt {
    font-weight: bold;
    margin-top: 16px;
    color: #3949ab;
}
.z19b4afaq dd {
    margin-left: 0;
    margin-bottom: 8px;
    font-size: 1rem;
}
.z19b4atestimonials .z19b4atestimonial-list {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: center;
}
.z19b4atestimonial-item {
    background: #e8eaf6;
    border-radius: 8px;
    padding: 18px 24px;
    min-width: 180px;
    max-width: 320px;
    font-size: 1rem;
    color: #222;
    box-shadow: 0 1px 4px rgba(60,60,60,0.06);
    text-align: left;
}
.z19b4atestimonial-item span {
    display: block;
    margin-top: 10px;
    color: #888;
    font-size: 0.95rem;
}
.z19b4arisk {
    background: #fffde7;
    border: 1px solid #ffe082;
    color: #795548;
    border-radius: 10px;
    margin-top: 24px;
    padding: 24px 0;
}
.z19b4aflowchart-img {
    text-align: center;
    margin: 18px 0 0 0;
}
.z19b4anews-list {
    list-style: disc inside;
    max-width: 700px;
    margin: 0 auto;
    color: #333;
    font-size: 1.05rem;
    padding-left: 0;
}
.z19b4anews-list li {
    margin-bottom: 10px;
}
.z19b4amore-contact .z19b4acontact-list {
    list-style: none;
    padding: 0;
    text-align: center;
    color: #1a237e;
    font-size: 1.1rem;
}
.z19b4amore-contact .z19b4acontact-list li {
    margin-bottom: 8px;
}
@media (max-width: 900px) {
    .z19b4atestimonials .z19b4atestimonial-list {
        flex-direction: column;
        align-items: center;
    }
}
.z19b4ahero-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
}
.z19b4ahero-text {
    flex: 1 1 320px;
    min-width: 220px;
}
.z19b4ahero-img {
    flex: 1 1 320px;
    min-width: 180px;
    text-align: center;
}
.z19b4ahero-img img {
    max-width: 340px;
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(60,60,60,0.10);
}
@media (max-width: 900px) {
    .z19b4ahero-flex {
        flex-direction: column;
        gap: 14px;
        align-items: center;
    }
    .z19b4ahero-text {
        width: 100%;
        text-align: center;
    }
    .z19b4ahero-img {
        width: 100%;
        text-align: center;
    }
    .z19b4ahero-img img {
        max-width: 96vw;
        width: 100%;
        height: auto;
        margin: 0 auto;
        display: block;
    }
}
.z19b4aabout-title {
    width: 100%;
    text-align: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #1a237e;
    margin-bottom: 12px;
    margin-top: 0;
}
.z19b4aabout-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: center;
    align-items: flex-start;
    text-align: center;
    row-gap: 14px;
}
.z19b4aabout-card {
    background: #fff;
    border: 2px solid #3949ab;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(60,60,60,0.10);
    padding: 18px 14px 14px 14px;
    flex: 1 1 220px;
    min-width: 200px;
    max-width: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 0;
    transition: box-shadow 0.2s, border-color 0.2s;
}
.z19b4aabout-card:hover {
    box-shadow: 0 8px 24px rgba(60,60,60,0.18);
    border-color: #1a237e;
}
.z19b4aabout-card h4 {
    color: #3949ab;
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.1rem;
}
.z19b4aabout-card p, .z19b4aabout-card ul {
    color: #333;
    font-size: 1rem;
    margin-bottom: 0;
}
.z19b4aabout-card ul {
    text-align: left;
    display: inline-block;
    margin: 0 auto;
    padding-left: 18px;
}
.z19b4aabout-card li {
    margin-bottom: 5px;
}
@media (max-width: 900px) {
    .z19b4aabout-grid {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }
    .z19b4aabout-card {
        max-width: 98vw;
    }
    .z19b4aabout-card ul {
        text-align: left;
        display: block;
    }
}
.z19b4aservices-title {
    width: 100%;
    text-align: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #1a237e;
    margin-bottom: 18px;
    margin-top: 0;
}
.z19b4aservices-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: center;
    align-items: flex-start;
    text-align: center;
    row-gap: 14px;
}
.z19b4aservice-card {
    background: #fff;
    border: 2px solid #3949ab;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(60,60,60,0.10);
    padding: 18px 14px 14px 14px;
    flex: 1 1 220px;
    min-width: 200px;
    max-width: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 0;
    transition: box-shadow 0.2s, border-color 0.2s;
}
.z19b4aservice-card:hover {
    box-shadow: 0 8px 24px rgba(60,60,60,0.18);
    border-color: #1a237e;
}
.z19b4aservice-card h4 {
    color: #3949ab;
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.1rem;
}
.z19b4aservice-card ul {
    text-align: left;
    display: inline-block;
    margin: 0 auto;
    padding-left: 18px;
    color: #333;
    font-size: 1rem;
}
.z19b4aservice-card li {
    margin-bottom: 5px;
}
@media (max-width: 900px) {
    .z19b4aservices-grid {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }
    .z19b4aservice-card {
        max-width: 98vw;
    }
    .z19b4aservice-card ul {
        text-align: left;
        display: block;
    }
}
.z19b4aadvantages-title {
    width: 100%;
    text-align: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #1a237e;
    margin-bottom: 18px;
    margin-top: 0;
}
.z19b4aadvantages-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: center;
    align-items: flex-start;
    text-align: center;
    row-gap: 14px;
}
.z19b4aadvantage-card {
    background: #fff;
    border: 2px solid #3949ab;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(60,60,60,0.10);
    padding: 18px 14px 14px 14px;
    flex: 1 1 220px;
    min-width: 200px;
    max-width: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 0;
    transition: box-shadow 0.2s, border-color 0.2s;
}
.z19b4aadvantage-card:hover {
    box-shadow: 0 8px 24px rgba(60,60,60,0.18);
    border-color: #1a237e;
}
.z19b4aadvantage-card h4 {
    color: #3949ab;
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.1rem;
}
.z19b4aadvantage-card p {
    color: #333;
    font-size: 1rem;
    margin-bottom: 0;
}
@media (max-width: 900px) {
    .z19b4aadvantages-grid {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }
    .z19b4aadvantage-card {
        max-width: 98vw;
    }
}
.z19b4aprocess-title {
    width: 100%;
    text-align: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #1a237e;
    margin-bottom: 18px;
    margin-top: 0;
}
.z19b4aprocess-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: center;
    align-items: flex-start;
    text-align: center;
    row-gap: 14px;
}
.z19b4aprocess-card {
    background: #fff;
    border: 2px solid #3949ab;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(60,60,60,0.10);
    padding: 18px 14px 14px 14px;
    flex: 1 1 220px;
    min-width: 200px;
    max-width: 260px;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 0;
    transition: box-shadow 0.2s, border-color 0.2s;
    position: relative;
}
.z19b4aprocess-card:hover {
    box-shadow: 0 8px 24px rgba(60,60,60,0.18);
    border-color: #1a237e;
}
.z19b4aprocess-step {
    width: 38px;
    height: 38px;
    background: #3949ab;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: bold;
    margin-bottom: 10px;
    box-shadow: 0 2px 8px rgba(60,60,60,0.10);
}
.z19b4aprocess-card h4 {
    color: #3949ab;
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.1rem;
}
.z19b4aprocess-card p {
    color: #333;
    font-size: 1rem;
    margin-bottom: 0;
}
@media (max-width: 900px) {
    .z19b4aprocess-grid {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }
    .z19b4aprocess-card {
        max-width: 98vw;
    }
}
.z19b4afaq-title {
    width: 100%;
    text-align: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #1a237e;
    margin-bottom: 18px;
    margin-top: 0;
}
.z19b4afaq-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: center;
    align-items: flex-start;
    text-align: center;
    row-gap: 14px;
}
.z19b4afaq-card {
    background: #fff;
    border: 2px solid #3949ab;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(60,60,60,0.10);
    padding: 18px 14px 14px 14px;
    flex: 1 1 220px;
    min-width: 200px;
    max-width: 340px;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 0;
    transition: box-shadow 0.2s, border-color 0.2s;
}
.z19b4afaq-card:hover {
    box-shadow: 0 8px 24px rgba(60,60,60,0.18);
    border-color: #1a237e;
}
.z19b4afaq-card h4 {
    color: #3949ab;
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.1rem;
}
.z19b4afaq-card p {
    color: #333;
    font-size: 1rem;
    margin-bottom: 0;
}
@media (max-width: 900px) {
    .z19b4afaq-grid {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }
    .z19b4afaq-card {
        max-width: 98vw;
    }
}
.z19b4aflowchart-title {
    width: 100%;
    text-align: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #1a237e;
    margin-bottom: 18px;
    margin-top: 0;
}
.z19b4aflowchart-grid {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.z19b4aflowchart-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: center;
    align-items: flex-start;
    text-align: center;
    row-gap: 14px;
    width: 100%;
}
.z19b4aflowchart-card {
    background: #fff;
    border: 2px solid #3949ab;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(60,60,60,0.10);
    padding: 18px 14px 14px 14px;
    flex: 0 1 240px;
    min-width: 200px;
    max-width: 260px;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 0;
    transition: box-shadow 0.2s, border-color 0.2s;
    box-sizing: border-box;
}
.z19b4aflowchart-card:hover {
    box-shadow: 0 8px 24px rgba(60,60,60,0.18);
    border-color: #1a237e;
}
.z19b4aflowchart-card h4 {
    color: #3949ab;
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.1rem;
}
.z19b4aflowchart-card p {
    color: #333;
    font-size: 1rem;
    margin-bottom: 0;
}
@media (max-width: 900px) {
    .z19b4aflowchart-cards {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }
    .z19b4aflowchart-card {
        max-width: 98vw;
        min-width: 0;
        flex: 1 1 auto;
    }
}
.z19b4anews-title {
    width: 100%;
    text-align: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #1a237e;
    margin-bottom: 18px;
    margin-top: 0;
}
.z19b4anews-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: center;
    align-items: flex-start;
    text-align: center;
    row-gap: 14px;
}
.z19b4anews-card {
    background: #fff;
    border: 2px solid #3949ab;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(60,60,60,0.10);
    padding: 18px 14px 14px 14px;
    flex: 1 1 220px;
    min-width: 200px;
    max-width: 340px;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 0;
    transition: box-shadow 0.2s, border-color 0.2s;
}
.z19b4anews-card:hover {
    box-shadow: 0 8px 24px rgba(60,60,60,0.18);
    border-color: #1a237e;
}
.z19b4anews-card h4 {
    color: #3949ab;
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.1rem;
}
.z19b4anews-card p {
    color: #333;
    font-size: 1rem;
    margin-bottom: 0;
}
@media (max-width: 900px) {
    .z19b4anews-grid {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }
    .z19b4anews-card {
        max-width: 98vw;
    }
}
@media (max-width: 900px) {
    .z19b4aabout-grid,
    .z19b4aservices-grid,
    .z19b4aadvantages-grid,
    .z19b4aprocess-grid,
    .z19b4afaq-grid,
    .z19b4anews-grid,
    .z19b4aflowchart-cards {
        flex-direction: column;
        gap: 8px;
        align-items: stretch;
    }
    .z19b4aabout-card,
    .z19b4aservice-card,
    .z19b4aadvantage-card,
    .z19b4aprocess-card,
    .z19b4afaq-card,
    .z19b4anews-card,
    .z19b4aflowchart-card {
        padding-left: 6px;
        padding-right: 6px;
        padding-top: 12px;
        padding-bottom: 10px;
    }
}
@media (max-width: 700px) {
    .z19b4amain-nav ul {
        display: none;
        flex-direction: column;
        background: #1a237e;
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
        z-index: 1000;
        margin: 0;
        padding: 0;
    }
    .z19b4amain-nav ul.active {
        display: flex;
    }
    .z19b4anav-toggle {
        display: block;
        position: absolute;
        right: 18px;
        top: 18px;
        width: 36px;
        height: 36px;
        background: none;
        border: none;
        cursor: pointer;
        z-index: 1100;
    }
    .z19b4anav-toggle span,
    .z19b4anav-toggle span:before,
    .z19b4anav-toggle span:after {
        display: block;
        background: #fff;
        height: 4px;
        width: 28px;
        border-radius: 2px;
        position: absolute;
        left: 4px;
        transition: all 0.3s;
    }
    .z19b4anav-toggle span {
        top: 16px;
    }
    .z19b4anav-toggle span:before {
        content: '';
        top: 6px;
    }
    .z19b4anav-toggle span:after {
        content: '';
        top: -6px;
    }
}
@media (min-width: 701px) {
    .z19b4anav-toggle {
        display: none;
    }
}