body {
    line-height: 1.8;
    letter-spacing: 0.05em;
}
.contact-form-section { padding: 100px 0; }
.form-intro { text-align: center; max-width: 760px; margin: 0 auto 60px; color: var(--text-light); }
form { max-width: 800px; margin: 0 auto; }
.form-group { margin-bottom: 35px; display: flex; flex-wrap: wrap; }
.form-label { width: 240px; padding-top: 12px; font-family: var(--font-serif); font-size: 0.95rem; font-weight: 500; }
.form-label .required { background: var(--primary-color); color: #fff; font-size: 0.65rem; padding: 2px 6px; border-radius: 2px; margin-left: 8px; vertical-align: middle; }
.form-control-wrap { flex: 1; min-width: 300px; }
input[type="text"], input[type="email"], input[type="tel"], select, textarea { width: 100%; padding: 14px 15px; border: 1px solid #ddd; background: #fafafa; font-family: var(--font-sans); font-size: 1rem; color: var(--text-main); border-radius: 0; transition: all 0.3s ease; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary-color); background: #fff; box-shadow: 0 0 10px rgba(67, 113, 153, 0.14); }
input.is-error, select.is-error, textarea.is-error { border-color: #b3261e; background: #fff8f8; }
input.is-error:focus, select.is-error:focus, textarea.is-error:focus { border-color: #b3261e; box-shadow: 0 0 0 3px rgba(179, 38, 30, 0.12); }
.form-error-summary { margin: 0 0 34px; padding: 18px 22px; border: 1px solid #b3261e; background: #fff8f8; color: #8f1d18; font-size: 0.95rem; line-height: 1.7; }
.form-error-summary[hidden], .form-error[hidden] { display: none; }
.form-error-summary:focus { outline: 3px solid rgba(179, 38, 30, 0.18); outline-offset: 2px; }
.form-error-summary p { margin: 0 0 6px; font-weight: 500; }
.form-error-summary ul { margin: 0; padding-left: 1.3em; }
.form-error { margin: 8px 0 0; color: #b3261e; font-size: 0.9rem; line-height: 1.6; }
.checkbox-group { display: flex; flex-wrap: wrap; gap: 20px; padding-top: 10px; }
.checkbox-label { font-size: 0.95rem; cursor: pointer; display: flex; align-items: center; }
.checkbox-label input { margin-right: 8px; accent-color: var(--primary-color); width: 18px; height: 18px; }
.submit-wrap { text-align: center; margin-top: 60px; }
.submit-btn { display: inline-block; background: var(--primary-color); color: #fff; border: 1px solid var(--primary-color); padding: 22px 100px; font-family: var(--font-serif); font-size: 1rem; letter-spacing: 0.3em; cursor: pointer; transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1); position: relative; border-radius: 0; }
.submit-btn:hover { background: #fff; color: var(--primary-color); border-color: var(--primary-color); transform: translateY(-3px); box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1); }
@media (max-width: 768px) {
    .contact-form-section { padding: 88px 0; }
    .form-intro { padding: 0 4%; margin-bottom: 48px; }
    form { max-width: none; padding: 0 4%; }
    .form-group { display: block !important; margin-bottom: 30px; }
    .form-label {
        display: block !important;
        width: auto !important;
        padding-top: 0;
        margin-bottom: 12px;
        line-height: 1.8;
        writing-mode: horizontal-tb;
    }
    .form-control-wrap {
        display: block !important;
        width: 100% !important;
        min-width: 0 !important;
        flex: none !important;
    }
    .checkbox-group {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 14px;
        padding-top: 4px;
    }
    .checkbox-label {
        width: 100%;
        font-size: 0.92rem;
        line-height: 1.7;
        justify-content: flex-start;
        writing-mode: horizontal-tb;
    }
    .checkbox-label input {
        flex-shrink: 0;
        margin-top: 0.2em;
    }
    input[type="text"], input[type="email"], input[type="tel"], select, textarea {
        display: block;
        width: 100% !important;
        min-height: 52px;
    }
    textarea {
        min-height: 220px;
    }
    .submit-wrap { margin-top: 44px; }
    .submit-btn {
        display: block;
        width: 100%;
        padding: 18px 0;
        font-size: 0.95rem;
        line-height: 1.4;
        letter-spacing: 0.18em;
    }
    .footer-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 600px) {
    .contact-form-section { padding: 78px 0; }
    .form-intro { padding: 0 5%; }
    form { padding: 0 5%; }
    .form-group { margin-bottom: 28px; }
    input[type="text"], input[type="email"], input[type="tel"], select, textarea { font-size: 16px; }
    .submit-wrap { margin-top: 48px; }
}