body {
background: linear-gradient(135deg, #f0f4fa 0%, #e4ecf5 100%);
color: #1e293b;
}

/* 主卡片容器 */
.contact-wrapper {
background-color: #ffffff;
border-radius: 36px;
box-shadow: 0 35px 70px -25px rgba(11, 43, 64, 0.25);
padding: 3.5rem 3.8rem;
display: flex;
flex-direction: column;
flex-wrap: nowrap;
}

/* 顶部标题区 */
.header {
text-align: center;
margin-bottom: 3rem;
}

.header h1 {
font-size: 2.4rem;
font-weight: 700;
letter-spacing: -0.02em;
color: #0b2b40;
margin-bottom: 0.7rem;
}

.header .divider {
width: 70px;
height: 4px;
background: linear-gradient(90deg, #2b6c8f, #8bc9ff);
border-radius: 4px;
margin: 0 auto 1.2rem auto;
}

.header p {
font-size: 1.05rem;
color: #5f7385;
max-width: 600px;
margin: 0 auto;
}

/* 卡片网格 — 2行3列 */
.contact-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 1.8rem;
margin-bottom: 2rem;
}

/* 单个卡片 — 内容居中 */
.contact-item {
background-color: #f9fbfd;
border: 1.5px solid #e9eff6;
border-radius: 24px;
padding: 2.2rem 1.6rem;
display: flex;
flex-direction: column;
align-items: center;        /* 水平居中 */
text-align: center;         /* 文字居中 */
transition: all 0.25s ease;
position: relative;
overflow: hidden;
}

.contact-item::before {
content: '';
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 4px;
background: linear-gradient(90deg, #2b6c8f, #8bc9ff);
opacity: 0;
transition: opacity 0.25s ease;
}

.contact-item:hover {
border-color: #cbdceb;
box-shadow: 0 18px 30px -12px rgba(11, 43, 64, 0.12);
transform: translateY(-4px);
background-color: #ffffff;
}

.contact-item:hover::before {
opacity: 1;
}

/* 图标容器 — 居中 */
.contact-item .item-icon {
width: 60px;
height: 60px;
background: linear-gradient(145deg, #edf3f9, #e2ecf5);
border-radius: 20px;
display: flex;
align-items: center;
justify-content: center;
font-size: 1.7rem;
margin-bottom: 1.3rem;
color: #1a4d66;
transition: all 0.25s ease;
flex-shrink: 0;
}

.contact-item:hover .item-icon {
background: linear-gradient(145deg, #2b6c8f, #1a4d66);
color: #ffffff;
transform: scale(1.05);
}

/* 卡片文字 */
.contact-item .item-label {
font-size: 0.78rem;
text-transform: uppercase;
letter-spacing: 0.8px;
color: #8096a8;
font-weight: 600;
margin-bottom: 0.5rem;
}

.contact-item .item-value {
font-size: 1.08rem;
font-weight: 600;
color: #0b2b40;
line-height: 1.5;
word-break: break-word;
text-decoration: none;
}

.contact-item .item-value a {
color: #0b2b40;
text-decoration: none;
transition: color 0.2s ease;
}

.contact-item .item-value a:hover {
color: #2b6c8f;
text-decoration: underline;
}

/* 额外小字提示 */
.contact-item .item-hint {
font-size: 0.78rem;
color: #8096a8;
margin-top: 0.6rem;
display: flex;
align-items: center;
justify-content: center;
gap: 0.3rem;
}

/* 底部条幅 */
.footer-note {
background-color: #f0f7fc;
border-radius: 18px;
padding: 1.2rem 2rem;
display: flex;
align-items: center;
justify-content: center;
gap: 1rem;
color: #1e4d6b;
font-size: 0.95rem;
font-weight: 500;
border: 1px solid #dbe8f2;
}

.footer-note .emoji {
font-size: 1.3rem;
}