/* ============================================================
 * by 诗航软件-凯哥 2026.6.16
 * ============================================================ */

/* ============================================================
 * about.css - 公司介绍页面样式
 * ============================================================ */

.about-section {
    padding: 50px 0 80px;
    background: #fff;
}

.about-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 60px;
}

.about-title {
    font-size: 2.2rem;
    color: #1a56db;
    margin-bottom: 15px;
    font-weight: bold;
}

.about-subtitle {
    font-size: 1.2rem;
    color: #64748b;
    margin-bottom: 30px;
}

.about-text p {
    font-size: 1rem;
    line-height: 1.8;
    color: #475569;
    margin-bottom: 20px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 80px;
    padding: 50px 30px;
    background: linear-gradient(135deg, #1a56db 0%, #1d4ed8 100%);
    border-radius: 15px;
}

.stat-item {
    text-align: center;
    color: #fff;
}

.stat-num {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

.about-features {
    margin-bottom: 80px;
    text-align: center;
}

.about-features .section-title {
    text-align: center;
}

.about-features .section-subtitle {
    text-align: center;
    margin-bottom: 50px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.feature-card {
    background: #f8fafc;
    border-radius: 10px;
    padding: 35px 25px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e5e7eb;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: #1a56db;
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.feature-card h3 {
    font-size: 1.2rem;
    color: #1a56db;
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 0.95rem;
    color: #64748b;
    line-height: 1.6;
}

.about-message {
    text-align: center;
    margin-bottom: 80px;
}

.about-message .section-subtitle {
    margin-bottom: 40px;
}

.message-form {
    max-width: 700px;
    margin: 0 auto;
    text-align: left;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-row .form-group {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-size: 0.95rem;
    color: #333;
    font-weight: 500;
    margin-bottom: 8px;
}

.required {
    color: #ef4444;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    font-size: 0.95rem;
    color: #333;
    background: #fff;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #1a56db;
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-actions {
    text-align: center;
    gap: 15px;
    align-items: center;
    margin-top: 10px;
}

.form-actions .captcha-group {
    flex: 1;
    margin-bottom: 0;
}

.form-actions .captcha-group input {
    width: 100%;
}

.captcha-img-placeholder {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 110px;
    height: 46px;
    background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    color: #64748b;
    font-size: 0.9rem;
    letter-spacing: 2px;
    cursor: pointer;
    user-select: none;
    transition: all 0.3s ease;
}

.captcha-img-placeholder:hover {
    border-color: #1a56db;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
}

.btn-submit {
    flex-shrink: 0;
    padding: 12px 30px;
    background: linear-gradient(135deg, #1a56db, #3b82f6);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(26, 86, 219, 0.3);
    white-space: nowrap;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(26, 86, 219, 0.4);
}

.btn-submit:active {
    transform: translateY(0);
}

.about-contact {
    text-align: center;
}

.about-contact .section-subtitle {
    margin-bottom: 50px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-bottom: 40px;
}

.contact-item {
    background: #f8fafc;
    padding: 30px 20px;
    border-radius: 10px;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.contact-item:hover {
    border-color: #1a56db;
    transform: translateY(-3px);
}

.contact-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.contact-item h3 {
    font-size: 1rem;
    color: #64748b;
    margin-bottom: 8px;
}

.contact-item p {
    font-size: 1.1rem;
    color: #1a56db;
    font-weight: 600;
}

.contact-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

@media (max-width: 900px) {
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        padding: 35px 20px;
        gap: 25px;
    }

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

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

    .stat-num {
        font-size: 2.2rem;
    }

    .about-title {
        font-size: 1.8rem;
    }

    .about-subtitle {
        font-size: 1.1rem;
    }
}

@media (max-width: 576px) {
    .about-section {
        padding: 30px 0 50px;
    }

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        padding: 30px 15px;
        gap: 20px;
        margin-bottom: 50px;
    }

    .stat-num {
        font-size: 2rem;
    }

    .stat-label {
        font-size: 0.95rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .feature-card {
        padding: 25px 20px;
    }

    .feature-icon {
        font-size: 2rem;
    }

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

    .contact-actions {
        flex-direction: column;
    }

    .contact-actions .btn {
        width: 100%;
    }

    .about-title {
        font-size: 1.5rem;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .form-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .form-actions .captcha-group {
        width: 100%;
    }

    .captcha-img-placeholder {
        width: 100%;
        height: 44px;
    }

    .btn-submit {
        width: 100%;
    }
}