@keyframes gradientShift {0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}
@keyframes floatPulse {0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.contact-hero {
    background: linear-gradient(120deg, #1e3a8a, var(--primary-color), #2c7be5);
    background-size: 200% 200%;
    animation: gradientShift 14s ease infinite;
    color: #fff;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.contact-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 10%, rgba(255,255,255,.12), transparent 40%),
                radial-gradient(circle at 80% 30%, rgba(255,255,255,.1), transparent 35%),
                url("data:image/svg+xml,%3Csvg width=\"60\" height=\"60\" viewBox=\"0 0 60 60\" xmlns=\"http://www.w3.org/2000/svg\"%3E%3Cg fill=\"none\" fill-rule=\"evenodd\"%3E%3Cg fill=\"%23ffffff\" fill-opacity=\"0.05\"%3E%3Ccircle cx=\"30\" cy=\"30\" r=\"2\"/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
}

.contact-hero-content { position: relative; z-index: 2; }

.contact-section { padding: 80px 0 50px; background: #f8f9fa; }

.contact-form-card {
    background: rgba(255,255,255,0.9);
    border-radius: 24px;
    padding: 48px;
    box-shadow: 0 20px 40px rgba(30,58,138,0.12);
    backdrop-filter: blur(6px);
    margin-top: -50px;
    position: relative;
    z-index: 3;
    border: 1px solid rgba(44,90,160,0.12);
}

.contact-info-card {
    background: #fff;
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 14px 30px rgba(0,0,0,0.08);
    height: 100%;
    display: flex;
    flex-direction: column;
    border-top: 3px solid var(--primary-color);
}

.contact-info-item { display:flex; align-items:flex-start; margin-bottom:30px; padding:20px; background:#fff; border:1px solid rgba(0,0,0,0.05); border-radius:16px; transition: all .2s ease; }
.contact-info-item:hover { transform: translateY(-4px); box-shadow: 0 10px 22px rgba(0,0,0,0.08); }

.contact-info-icon { width:56px; height:56px; background:#f8f9fa; color: var(--primary-color); border-radius:14px; display:flex; align-items:center; justify-content:center; margin-right: 16px; font-size:1.4rem; flex-shrink:0; transition: all .2s ease; animation: floatPulse 4s ease infinite; }

.contact-info-content h5 { font-weight: 600; margin-bottom: 8px; font-size: 1.1rem; }
.contact-info-content p { margin: 0; opacity: 0.8; line-height: 1.6; }

.form-group { margin-bottom: 25px; }
.form-label { font-weight: 600; color: var(--text-dark); margin-bottom: 8px; display: block; }

.form-control {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 1rem;
    transition: all 0.2s ease;
    background: #f8f9fa;
    box-shadow: inset 0 1px 0 rgba(0,0,0,0.02);
}
.form-control:focus { border-color: var(--primary-color); box-shadow: 0 0 0 0.22rem rgba(44, 90, 160, 0.18); background: #fff; }
.form-control.is-invalid { border-color: #dc3545; }
.form-control.is-valid { border-color: #28a745; }
textarea.form-control { min-height: 120px; resize: vertical; }

.btn-submit {
    background: linear-gradient(135deg, var(--primary-color), #2c7be5);
    color: #fff;
    border: none;
    padding: 12px 28px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 1.05rem;
    transition: transform .2s ease, box-shadow .2s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 180px;
    justify-content: center;
    box-shadow: 0 10px 20px rgba(44,90,160,0.25);
}
.btn-submit:hover { transform: translateY(-2px); box-shadow: 0 16px 28px rgba(44,90,160,0.28); color: #fff; }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.alert { border-radius: 10px; padding: 15px 20px; margin-bottom: 25px; border: none; font-weight: 500; }
.alert-success { background: #d4edda; color: #155724; }
.alert-danger { background: #f8d7da; color: #721c24; }

.map-section { padding: 44px 0 48px; background: linear-gradient(180deg, #fff, #f8f9fa); }
.map-section .text-center { margin-bottom: 16px; }
.map-container { border-radius: 20px; overflow: hidden; box-shadow: 0 14px 30px rgba(0,0,0,0.08); height: 400px; background: #fff; position: relative; }
.map-image { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .8s ease; }
.map-container:hover .map-image { transform: scale(1.03); }

.working-hours { background: linear-gradient(135deg, #f8f9fa, #e9ecef); border-radius: 15px; padding: 30px; margin-top: 30px; }
.working-hours h5 { color: var(--text-dark); font-weight: 600; margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.working-hours-list { list-style: none; padding: 0; margin: 0; }
.working-hours-list li { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px solid rgba(0,0,0,0.1); position: relative; }
.working-hours-list li::before { content:""; position:absolute; left:-10px; top:50%; transform:translateY(-50%); width:8px; height:8px; border-radius:50%; background: var(--primary-color); opacity:.25; }
.working-hours-list li:last-child { border-bottom: none; }
.day { font-weight: 500; color: var(--text-dark); }
.hours { color: var(--text-light); font-size: 0.95rem; }

.social-links { display: flex; gap: 15px; margin-top: 12px; justify-content: center; }
.social-link { width: 50px; height: 50px; background: var(--primary-color); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; text-decoration: none; font-size: 1.2rem; transition: all 0.2s ease; box-shadow: 0 6px 14px rgba(44,90,160,0.18); }
.social-link:hover { background: #1e3a8a; color: #fff; transform: translateY(-3px); box-shadow: 0 10px 22px rgba(30,58,138,0.25); }

/* 增加卡片底部内边距，让社交图标整体上移 */
.contact-info-card { padding-bottom: 64px; }

.required { color: #dc3545; }
.form-text { font-size: 0.875rem; color: var(--text-light); margin-top: 5px; }

@media (max-width: 768px) {
    .contact-hero { padding: 100px 0 60px; }
    .contact-form-card { padding: 30px 20px; margin-top: -30px; }
    .contact-info-card { padding: 30px 20px; margin-top: 30px; }
    .contact-info-item { flex-direction: column; text-align: center; }
    .contact-info-icon { margin-right: 0; margin-bottom: 15px; }
    .social-links { flex-wrap: wrap; }
    .map-container { height: 300px; }
}

/* 统一 PC 端左右容器高度对齐 */
@media (min-width: 992px) {
    .contact-section .row.g-5 { align-items: stretch; }
    .contact-form-card, .contact-info-card { height: 100%; }
    .contact-info-card { margin-top: -50px; }
    .map-section { margin-top: -28px; }
}

/* 移动端重设计：更紧凑的联系信息卡片与条目样式（不影响 PC） */
@media (max-width: 991.98px) {
    .contact-section { padding: 52px 0 38px; }
    .contact-info-card {
        padding: 18px; border-radius: 20px; box-shadow: 0 18px 28px rgba(0,0,0,0.12);
        border: 1px solid rgba(44,90,160,0.12); background: linear-gradient(180deg, #ffffff, #fbfdff);
        position: relative; overflow: hidden;
    }
    .contact-info-card::before { content: ""; position: absolute; inset: 0; background: radial-gradient(100% 60% at 10% 0%, rgba(30,58,138,0.08), transparent 60%); pointer-events: none; }
    .contact-info-item { margin-bottom: 14px; padding: 14px; border-radius: 16px; background: linear-gradient(145deg, #ffffff, #f4f7fb); border: 1px solid rgba(0,0,0,0.06); box-shadow: 6px 10px 18px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.8); transition: transform .2s ease, box-shadow .2s ease; }
    .contact-info-item:active { transform: translateY(2px); box-shadow: 2px 6px 12px rgba(0,0,0,0.08); }
    .contact-info-icon { width: 44px; height: 44px; border-radius: 12px; margin-right: 12px; font-size: 1.2rem; background: linear-gradient(135deg, #2c6edb, #1e4db8); color: #fff; box-shadow: inset 0 -3px 8px rgba(0,0,0,0.2), 0 8px 14px rgba(30,58,138,0.25); animation: floatPulse 5s ease infinite; }
    .contact-info-content h5 { font-size: 1rem; margin-bottom: 6px; }
    .contact-info-content p { font-size: .95rem; line-height: 1.55; opacity: .9; }
    .social-links { gap: 10px; margin-top: 8px; }
    .social-link { width: 42px; height: 42px; box-shadow: 0 10px 18px rgba(30,58,138,0.22); }
    .working-hours { padding: 20px; margin-top: 18px; }
}