/* ========== 全局重置 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    background: #f5f6fa;
    color: #2c3e50;
    font-size: 15px;
    line-height: 1.85;
}
a {
    text-decoration: none;
    color: #1a56db;
    transition: color 0.2s;
}
a:hover {
    color: #c0392b;
}
.wrap {
    width: 1040px;
    margin: 0 auto;
}

/* ========== 轮播容器 ========== */
.hero-slider {
    width: 1040px;
    height: 190px;
    margin: 0 auto 10px;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 2px 12px rgba(0,0,0,0.05);
}
.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.8s ease;
    z-index: 1;
}
.hero-slide.active {
    opacity: 1;
    z-index: 2;
}
.hero-slide::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(15, 25, 45, 0.5);
    border-radius: 12px;
}
.hero-inner {
    position: relative;
    z-index: 3;
    text-align: center;
    color: #fff;
}
.hero-inner h2 {
    font-size: 30px;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 6px;
}
.hero-inner p {
    font-size: 16px;
    opacity: 0.9;
    letter-spacing: 1px;
}
.hero-inner .tel {
    display: inline-block;
    margin-top: 12px;
    padding: 8px 28px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.15);
    font-size: 18px;
    font-weight: 600;
    backdrop-filter: blur(4px);
}

/* ========== 导航栏（分割线 + 立体层次） ========== */
.nav {
    background: linear-gradient(135deg, #0f2440 0%, #1a3a6b 100%);
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08), 
                inset 0 1px 0 rgba(255,255,255,0.08);
    display: flex;
    margin-bottom: 16px;
    padding: 0 6px;
    gap: 4px;
}
.nav a {
    flex: 1;
    text-align: center;
    padding: 15px 0;
    font-size: 14px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.85);
    position: relative;
    transition: all 0.25s;
    border-radius: 8px;
    margin: 4px 0;
    border: 1px solid transparent;
    /* 自然状态下的分割线 */
    border-right: 1px solid rgba(255, 255, 255, 0.18);
}
/* 取消最后一个的右边框 */
.nav a:last-child {
    border-right: none;
}
.nav a::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 3px;
    background: #f0c040;
    border-radius: 3px;
    transition: width 0.3s ease, left 0.3s ease;
}
.nav a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.15);
    border-right-color: transparent; /* 悬停时分割线融入背景 */
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}
.nav a:hover::after {
    width: 60%;
    left: 20%;
}
.nav a.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.15);
    font-weight: 700;
    border-color: rgba(255, 255, 255, 0.2);
    border-right-color: transparent;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}
.nav a.active::after {
    width: 60%;
    left: 20%;
    background: #f0c040;
}

/* ========== 内容卡片 ========== */
.section {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
    padding: 28px 32px;
    margin-top: 16px;
}
.section h2 {
    font-size: 19px;
    font-weight: 700;
    color: #1a1a2e;
    border-bottom: 2px solid #eef2f7;
    padding-bottom: 12px;
    margin-bottom: 16px;
    letter-spacing: 1px;
}
.section h3 {
    font-size: 17px;
    font-weight: 600;
    color: #1a1a2e;
    margin: 22px 0 10px;
    padding-left: 12px;
    border-left: 3px solid #1a56db;
}
.section p {
    color: #4a5568;
    font-size: 15px;
    line-height: 2;
    margin-bottom: 12px;
}
.section ul,
.section ol {
    margin: 8px 0 14px 22px;
    color: #4a5568;
    font-size: 15px;
}
.section li {
    margin-bottom: 6px;
}
strong {
    color: #1a1a2e;
}

/* 区域分组 */
.area-group {
    margin-bottom: 14px;
}
.area-group strong {
    display: inline-block;
    font-size: 14px;
    color: #1a1a2e;
    min-width: 56px;
    margin-right: 4px;
}
.area-group .tags {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 6px;
    vertical-align: middle;
}
.area-group .tags a {
    background: #f0f4ff;
    padding: 5px 14px;
    border-radius: 16px;
    font-size: 13px;
    color: #1a56db;
    transition: 0.2s;
}
.area-group .tags a:hover {
    background: #1a56db;
    color: #fff;
}

/* 流程步骤 */
.flow {
    display: flex;
    gap: 4px;
    margin: 18px 0;
}
.flow-step {
    flex: 1;
    text-align: center;
    background: #f9fafc;
    border-radius: 10px;
    padding: 16px 6px;
}
.flow-step .num {
    display: inline-block;
    width: 30px;
    height: 30px;
    line-height: 30px;
    border-radius: 50%;
    background: #1a56db;
    color: #fff;
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 8px;
}
.flow-step h4 {
    font-size: 14px;
    margin-bottom: 3px;
    color: #1a1a2e;
}
.flow-step p {
    font-size: 12px;
    color: #7a8a9e;
    margin: 0;
}

/* ========== 底部地址栏 ========== */
.footer-bar {
    background: linear-gradient(135deg, #0f2440 0%, #1a3a6b 100%);
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    margin-top: 16px;
    padding: 22px 30px;
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.85);
}
.footer-info {
    flex: 1;
    font-size: 14px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.8);
}
.footer-info strong {
    color: #fff;
}
.footer-qr {
    text-align: center;
    margin-left: 30px;
    border-left: 1px solid rgba(255, 255, 255, 0.2);
    padding-left: 30px;
}
.footer-qr img {
    width: 90px;
    height: 90px;
    border-radius: 8px;
    border: 2px solid rgba(255, 255, 255, 0.25);
}
.footer-qr p {
    margin-top: 5px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
}