/* 各个内容部分的样式 */

/* 信任指标部分 */
.trust-section {
    background-color: var(--bg-alabaster);
    padding: 3rem 20px;
    border-bottom: 1px solid var(--border-light);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.trust-item {
    font-size: 0.9rem;
    color: var(--text-main);
}

.trust-item .number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary-main);
    display: block;
    margin-bottom: 0.4rem;
    letter-spacing: -0.03em;
}

/* 产品部分 */
.products-section {
    padding: 5rem 20px;
    background-color: var(--bg-white);
}

.products-intro {
    text-align: center;
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    color: var(--text-main);
    font-size: 1rem;
    line-height: 1.8;
}

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

.product-card {
    background: var(--bg-white);
    border: 1.5px solid var(--border-main);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}

.product-card:hover {
    border-color: var(--primary-main);
    box-shadow: 0 10px 32px rgba(26, 95, 204, 0.12);
    transform: translateY(-4px);
}

.product-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--accent-color);
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.product-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.9rem;
    color: var(--primary-dark);
    font-weight: 700;
    letter-spacing: -0.01em;
}

.product-desc {
    color: var(--text-main);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    line-height: 1.75;
}

.product-features {
    list-style: none;
    margin-bottom: 1.5rem;
}

.product-features li {
    padding: 0.45rem 0 0.45rem 1.5rem;
    position: relative;
    color: var(--text-main);
    font-size: 0.88rem;
    line-height: 1.5;
}

.product-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: 700;
}

/* 竞争优势部分 */
.advantages-section {
    padding: 5rem 20px;
    background-color: var(--bg-ice);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.advantage-item {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-main);
    box-shadow: 0 2px 10px rgba(13, 31, 60, 0.05);
    transition: box-shadow 0.25s, transform 0.25s;
}

.advantage-item:hover {
    box-shadow: 0 8px 24px rgba(13, 31, 60, 0.1);
    transform: translateY(-2px);
}

.advantage-icon {
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

.advantage-item h3 {
    font-size: 1.05rem;
    margin-bottom: 0.7rem;
    color: var(--primary-dark);
    font-weight: 700;
}

.advantage-item p {
    font-size: 0.9rem;
    color: var(--text-main);
    line-height: 1.75;
}

/* 应用领域部分 */
.applications-section {
    padding: 5rem 20px;
    background-color: var(--bg-platinum);
}

.applications-banner {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 2.5rem;
    height: 240px;
}

.applications-banner-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.applications-banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(13, 31, 60, 0.65) 0%, rgba(13, 31, 60, 0.2) 100%);
    display: flex;
    align-items: flex-end;
    padding: 1.5rem 2rem;
}

.applications-banner-overlay span {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.06em;
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.application-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    border-top: 3px solid var(--primary-main);
    box-shadow: 0 2px 10px rgba(13, 31, 60, 0.05);
    transition: box-shadow 0.25s, transform 0.25s;
}

.application-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 28px rgba(26, 95, 204, 0.12);
}

.application-icon {
    font-size: 2.8rem;
    margin-bottom: 1rem;
}

.application-card h3 {
    font-size: 1rem;
    color: var(--primary-dark);
    margin-bottom: 0.6rem;
    font-weight: 700;
}

.application-card p {
    font-size: 0.85rem;
    color: var(--text-main);
    line-height: 1.6;
}

/* 关于部分 */
.about-section {
    padding: 5rem 20px;
    background-color: var(--bg-alabaster);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-content p {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    color: var(--text-main);
    line-height: 1.9;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.highlight-item {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    text-align: center;
}

.highlight-item strong {
    display: block;
    color: var(--primary-main);
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.highlight-item span {
    font-size: 0.88rem;
    color: var(--text-main);
    line-height: 1.6;
}

/* 联系部分 */
.contact-section {
    background: linear-gradient(145deg, var(--primary-dark) 0%, #1a3d7a 100%);
    color: white;
    padding: 4.5rem 20px;
    text-align: center;
}

.contact-section h2 {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.contact-subtitle {
    opacity: 0.8;
    margin-bottom: 0.6rem;
    font-size: 1rem;
}

.contact-details {
    font-size: 0.92rem;
    color: #a8d4f5;
    margin-bottom: 2.5rem;
    opacity: 0.95;
}

.contact-form {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    text-align: left;
}

.contact-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0.85rem;
}

.contact-input,
.contact-textarea {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    color: #ffffff;
    font-size: 0.9rem;
    padding: 0.75rem 1rem;
    width: 100%;
    box-sizing: border-box;
    transition: border-color 0.2s, background 0.2s;
    outline: none;
    font-family: inherit;
}

.contact-input::placeholder,
.contact-textarea::placeholder {
    color: rgba(255, 255, 255, 0.45);
}

.contact-input:focus,
.contact-textarea:focus {
    border-color: var(--primary-light);
    background: rgba(255, 255, 255, 0.13);
}

.contact-textarea {
    height: 120px;
    resize: vertical;
}

.contact-form-actions {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.contact-send-btn {
    background: var(--primary-main);
    color: #ffffff;
    border: none;
    border-radius: 4px;
    padding: 0.75rem 2.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
    font-family: inherit;
}

.contact-send-btn:hover {
    background: #5b9bf0;
    transform: translateY(-1px);
}

.contact-form-status {
    font-size: 0.88rem;
    color: #7dd3b0;
}