/* ============================================
   铜陵助孕电子 - 企业网站样式 v2.0
   主题：科技蓝 + 现代简约
   ============================================ */

/* ===== 全局基础样式 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', sans-serif;
    font-size: 15px;
    line-height: 1.8;
    color: #444;
    background: #f8f9fa;
    overflow-x: hidden;
}

a {
    color: #2563eb;
    transition: all 0.3s ease;
    text-decoration: none;
}
a:hover {
    color: #1d4ed8;
    text-decoration: none;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: #1e293b;
    line-height: 1.4;
}

.container {
    max-width: 1200px;
}

.section-title {
    text-align: center;
    margin-bottom: 45px;
    position: relative;
}
.section-title h2,
.section-title.section-title {
    font-size: 30px;
    color: #1e293b;
    font-weight: 700;
    padding-bottom: 16px;
    margin-bottom: 16px;
    position: relative;
    text-transform: none;
}
.section-title h2:after,
.section-title.section-title:after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #60a5fa);
    margin: 12px auto 0;
    border-radius: 2px;
}
.section-title p {
    font-size: 15px;
    color: #888;
    max-width: 600px;
    margin: 0 auto;
}

.btn {
    display: inline-block;
    padding: 10px 30px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 6px;
    background: #2563eb;
    color: #fff;
    border: none;
    transition: all 0.3s ease;
    cursor: pointer;
}
.btn:hover {
    background: #1d4ed8;
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* ===== 顶部联系栏 ===== */
.contact-bar {
    background: linear-gradient(135deg, #1e3a5f, #1e40af);
    color: #fff;
    padding: 10px 0;
    font-size: 13px;
}
.contact-bar i {
    margin-right: 6px;
    color: #60a5fa;
}
.contact-bar .text-right {
    text-align: right;
}

/* ===== 导航栏 ===== */
.navbar {
    background: #fff !important;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
    padding: 0;
}
.navbar .container {
    position: relative;
}
.navbar-brand {
    font-size: 17px;
    font-weight: 700;
    color: #1e3a5f !important;
    padding: 18px 0;
    max-width: 380px;
    line-height: 1.3;
    letter-spacing: 0.5px;
}
.navbar-brand:hover {
    color: #2563eb !important;
}
.navbar-nav .nav-link {
    color: #555 !important;
    font-size: 14px;
    font-weight: 500;
    padding: 22px 16px !important;
    position: relative;
    transition: color 0.3s ease;
}
.navbar-nav .nav-link:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: #2563eb;
    transition: width 0.3s ease;
    border-radius: 2px;
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-item.active .nav-link {
    color: #2563eb !important;
}
.navbar-nav .nav-link:hover:after,
.navbar-nav .nav-item.active .nav-link:after {
    width: 60%;
}
.navbar-toggler {
    border: none;
    padding: 8px;
}
.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='30' height='30' viewBox='0 0 30 30'%3e%3cpath stroke='%231e3a5f' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ===== 横幅 ===== */
.page-banner {
    background: linear-gradient(135deg, #1e3a5f 0%, #1e40af 50%, #2563eb 100%);
    padding: 80px 0 70px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-banner:before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
}
.page-banner:after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
}
.page-banner h1 {
    color: #fff;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}
.page-banner p {
    color: rgba(255,255,255,0.85);
    font-size: 17px;
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== 关于我们 ===== */
.about {
    padding: 70px 0;
    background: #fff;
}
.about h2 {
    font-size: 24px;
    color: #1e3a5f;
    margin-bottom: 20px;
    padding-bottom: 12px;
    position: relative;
}
.about h2:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: #2563eb;
    border-radius: 2px;
}
.about h3 {
    font-size: 18px;
    color: #1e3a5f;
    margin-top: 20px;
    margin-bottom: 10px;
}
.about h4 {
    font-size: 16px;
    color: #334155;
    margin-top: 18px;
    margin-bottom: 6px;
}
.about p {
    color: #666;
    margin-bottom: 12px;
    text-align: justify;
}
.about .col-md-6 {
    margin-bottom: 30px;
}
.about ul {
    list-style: none;
    padding-left: 0;
}
.about ul li {
    padding: 4px 0 4px 20px;
    position: relative;
    color: #666;
}
.about ul li:before {
    content: '\25B8';
    position: absolute;
    left: 0;
    color: #2563eb;
    font-weight: bold;
}

/* ===== 核心优势 ===== */
.features {
    padding: 70px 0;
    background: #f0f4ff;
}
.features .section-title {
    margin-bottom: 40px;
}
.feature-card {
    background: #fff;
    border-radius: 12px;
    padding: 35px 25px;
    text-align: center;
    margin-bottom: 25px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
    transition: all 0.35s ease;
    border: 1px solid #e8edf5;
    height: 100%;
}
.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(37, 99, 235, 0.12);
    border-color: #bfdbfe;
}
.feature-card i {
    font-size: 38px;
    color: #2563eb;
    margin-bottom: 18px;
    display: inline-block;
    background: #eff6ff;
    width: 70px;
    height: 70px;
    line-height: 70px;
    border-radius: 50%;
    transition: all 0.3s ease;
}
.feature-card:hover i {
    background: #2563eb;
    color: #fff;
    transform: scale(1.08);
}
.feature-card h3 {
    font-size: 19px;
    color: #1e3a5f;
    margin-bottom: 12px;
    font-weight: 600;
}
.feature-card p {
    color: #666;
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 0;
}

/* ===== 业务板块 ===== */
.services {
    padding: 70px 0;
    background: #fff;
}
.service-card {
    background: #f8faff;
    border: 1px solid #e8edf5;
    border-radius: 12px;
    padding: 30px 25px;
    margin-bottom: 25px;
    height: 100%;
    transition: all 0.35s ease;
}
.service-card:hover {
    border-color: #93c5fd;
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.1);
    transform: translateY(-3px);
}
.service-card h3 {
    font-size: 20px;
    color: #1e3a5f;
    margin-bottom: 6px;
    font-weight: 600;
}
.service-card h3 + p {
    color: #2563eb;
    font-size: 13px;
    margin-bottom: 14px;
    font-weight: 500;
}
.service-card ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 12px;
}
.service-card ul li {
    padding: 5px 0 5px 22px;
    position: relative;
    color: #666;
    font-size: 14px;
}
.service-card ul li:before {
    content: '\2022';
    position: absolute;
    left: 4px;
    color: #2563eb;
    font-weight: bold;
    font-size: 18px;
}
.service-card p:last-of-type {
    color: #888;
    font-size: 13px;
    margin-bottom: 14px;
}
.service-card .btn {
    font-size: 13px;
    padding: 8px 22px;
}

/* ===== 常见问题 ===== */
.faq-section {
    padding: 70px 0;
    background: #f0f4ff;
}
.faq-item {
    background: #fff;
    border-radius: 10px;
    padding: 22px 25px;
    margin-bottom: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    border: 1px solid #e8edf5;
    transition: all 0.3s ease;
}
.faq-item:hover {
    border-color: #bfdbfe;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.08);
}
.faq-item h4 {
    font-size: 15px;
    color: #1e3a5f;
    margin-bottom: 8px;
    font-weight: 600;
}
.faq-item p {
    color: #666;
    font-size: 14px;
    margin-bottom: 0;
    line-height: 1.7;
}

/* ===== 服务保障 ===== */
.guarantee {
    padding: 70px 0;
    background: #fff;
}
.guarantee .col-md-4 {
    margin-bottom: 30px;
}
.guarantee h3 {
    font-size: 19px;
    color: #1e3a5f;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid #bfdbfe;
}
.guarantee ul {
    list-style: none;
    padding-left: 0;
}
.guarantee ul li {
    padding: 6px 0 6px 22px;
    position: relative;
    color: #555;
    font-size: 14px;
    line-height: 1.6;
}
.guarantee ul li:before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: #2563eb;
    font-weight: bold;
}

/* ===== 行业资讯 ===== */
.news-section {
    padding: 70px 0;
    background: #f8faff;
}
.news-section h3 {
    font-size: 18px;
    color: #1e3a5f;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid #bfdbfe;
}
.news-section h4 {
    font-size: 15px;
    color: #334155;
    margin-top: 18px;
    margin-bottom: 6px;
    font-weight: 600;
}
.news-section p {
    color: #666;
    font-size: 14px;
    margin-bottom: 10px;
    text-align: justify;
}

/* ===== 子页面特殊布局 ===== */

/* 标签页布局（DaiMa, DaiSheng） */
.tab-container {
    padding: 60px 0;
    background: #fff;
}
.tab-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 35px;
    border-bottom: 2px solid #e8edf5;
    padding-bottom: 0;
}
.tab-nav .tab-btn {
    padding: 12px 28px;
    font-size: 14px;
    font-weight: 500;
    color: #666;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    margin-bottom: -2px;
}
.tab-nav .tab-btn:hover {
    color: #2563eb;
    background: #f0f4ff;
    border-radius: 8px 8px 0 0;
}
.tab-nav .tab-btn.active {
    color: #2563eb;
    border-bottom-color: #2563eb;
    background: transparent;
    font-weight: 600;
}
.tab-content {
    display: none;
}
.tab-content.active {
    display: block;
}
.tab-content .row {
    margin-bottom: 20px;
}
.tab-card {
    background: #f8faff;
    border: 1px solid #e8edf5;
    border-radius: 10px;
    padding: 25px;
    height: 100%;
    transition: all 0.3s ease;
}
.tab-card:hover {
    border-color: #93c5fd;
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.08);
    transform: translateY(-3px);
}
.tab-card h4 {
    font-size: 17px;
    color: #1e3a5f;
    margin-bottom: 10px;
    font-weight: 600;
}
.tab-card p {
    color: #666;
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 0;
}

/* 左右交替布局（DaiMu） */
.alternate-section {
    padding: 70px 0;
}
.alternate-section:nth-child(odd) {
    background: #fff;
}
.alternate-section:nth-child(even) {
    background: #f0f4ff;
}
.alternate-section .alt-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
}
.alternate-section .alt-img {
    text-align: center;
    padding: 20px;
}
.alternate-section .alt-img i {
    font-size: 72px;
    color: #2563eb;
    background: #eff6ff;
    width: 120px;
    height: 120px;
    line-height: 120px;
    border-radius: 50%;
    display: inline-block;
}
.alternate-section .alt-text {
    padding: 20px;
}
.alternate-section .alt-text h3 {
    font-size: 20px;
    color: #1e3a5f;
    margin-bottom: 12px;
    font-weight: 600;
}
.alternate-section .alt-text p {
    color: #666;
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 10px;
    text-align: justify;
}
.alternate-section .alt-text ul {
    list-style: none;
    padding-left: 0;
}
.alternate-section .alt-text ul li {
    padding: 4px 0 4px 22px;
    position: relative;
    color: #555;
    font-size: 14px;
}
.alternate-section .alt-text ul li:before {
    content: '\2192';
    position: absolute;
    left: 0;
    color: #2563eb;
}

/* 手风琴布局（ZhuYun） */
.accordion-section {
    padding: 60px 0;
    background: #fff;
}
.accordion-item {
    border: 1px solid #e8edf5;
    border-radius: 10px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}
.accordion-item:hover {
    border-color: #bfdbfe;
}
.accordion-header {
    padding: 18px 25px;
    background: #f8faff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s ease;
    font-size: 16px;
    font-weight: 600;
    color: #1e3a5f;
}
.accordion-header:hover {
    background: #eff6ff;
    color: #2563eb;
}
.accordion-header i {
    transition: transform 0.3s ease;
    color: #2563eb;
}
.accordion-item.open .accordion-header i {
    transform: rotate(180deg);
}
.accordion-body {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease;
}
.accordion-item.open .accordion-body {
    padding: 20px 25px;
    max-height: 2000px;
}
.accordion-body p {
    color: #666;
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 10px;
}
.accordion-body ul {
    list-style: none;
    padding-left: 0;
}
.accordion-body ul li {
    padding: 4px 0 4px 22px;
    position: relative;
    color: #555;
    font-size: 14px;
}
.accordion-body ul li:before {
    content: '\2022';
    position: absolute;
    left: 4px;
    color: #2563eb;
    font-weight: bold;
    font-size: 18px;
}

/* ===== 页脚 ===== */
footer {
    background: #1e293b;
    color: #ccc;
    padding: 50px 0 0;
}
footer h3 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 18px;
    font-weight: 600;
    padding-bottom: 12px;
    border-bottom: 2px solid #334155;
}
footer p {
    color: #94a3b8;
    font-size: 14px;
    margin-bottom: 8px;
    line-height: 1.7;
}
footer p i {
    margin-right: 8px;
    color: #60a5fa;
}
footer ul {
    list-style: none;
    padding-left: 0;
}
footer ul li {
    margin-bottom: 8px;
}
footer ul li a {
    color: #94a3b8;
    font-size: 14px;
    transition: all 0.3s ease;
}
footer ul li a:hover {
    color: #60a5fa;
    padding-left: 3px;
}
footer .col-md-4 {
    margin-bottom: 30px;
}
footer .text-center {
    border-top: 1px solid #334155;
    padding: 18px 0;
    margin-top: 10px;
}
footer .text-center p {
    color: #64748b;
    font-size: 13px;
    margin-bottom: 0;
}

/* ===== 响应式 ===== */
@media (max-width: 991px) {
    .page-banner { padding: 50px 0 45px; }
    .page-banner h1 { font-size: 26px; }
    .navbar-brand { font-size: 15px; max-width: 280px; }
    .navbar-nav .nav-link { padding: 12px 16px !important; }
}

@media (max-width: 767px) {
    .contact-bar .text-right { text-align: left; margin-top: 2px; }
    .navbar-brand { font-size: 14px; padding: 14px 0; max-width: 240px; }
    .page-banner { padding: 40px 0 35px; }
    .page-banner h1 { font-size: 22px; }
    .page-banner p { font-size: 15px; }
    .section-title h2 { font-size: 24px; }
    .about { padding: 45px 0; }
    .about h2 { font-size: 20px; }
    .features { padding: 45px 0; }
    .services { padding: 45px 0; }
    .tab-container { padding: 40px 0; }
    .tab-nav { gap: 4px; }
    .tab-nav .tab-btn { padding: 10px 16px; font-size: 13px; }
    .alternate-section { padding: 45px 0; }
    .alternate-section .alt-img i { font-size: 48px; width: 80px; height: 80px; line-height: 80px; }
    .accordion-section { padding: 40px 0; }
    .accordion-header { font-size: 14px; padding: 14px 18px; }
    footer { padding: 40px 0 0; }
    .tab-card { padding: 18px; }
}

@media (max-width: 575px) {
    .navbar-brand { max-width: 200px; font-size: 13px; }
    .page-banner h1 { font-size: 19px; }
    .feature-card { padding: 25px 18px; }
    .service-card { padding: 22px 18px; }
}

/* ============================================
   补充：覆盖Bootstrap原生子页面组件
   ============================================ */

/* ===== Bootstrap Tabs (DaiMa / DaiSheng) ===== */
.services .nav-tabs {
    border-bottom: 2px solid #e8edf5;
    margin-bottom: 35px;
    display: flex;
    flex-wrap: wrap;
    gap: 0;
}
.services .nav-tabs .nav-item {
    margin-bottom: -2px;
}
.services .nav-tabs .nav-link {
    border: none;
    border-bottom: 3px solid transparent;
    color: #666;
    font-size: 14px;
    font-weight: 500;
    padding: 12px 24px;
    background: transparent;
    transition: all 0.3s ease;
    border-radius: 0;
    margin-right: 0;
}
.services .nav-tabs .nav-link:hover {
    color: #2563eb;
    background: #f0f4ff;
}
.services .nav-tabs .nav-link.active {
    color: #2563eb;
    border-bottom-color: #2563eb;
    background: transparent;
    font-weight: 600;
    border-top: none;
    border-left: none;
    border-right: none;
}
.services .tab-content {
    padding: 10px 0;
}
.services .tab-pane h3 {
    font-size: 20px;
    color: #1e3a5f;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #bfdbfe;
    font-weight: 600;
}
.services .tab-pane > p {
    color: #666;
    font-size: 14px;
    margin-bottom: 25px;
    line-height: 1.7;
}
.services .tab-pane .service-card {
    margin-bottom: 20px;
    height: 100%;
}
.services .tab-pane .service-card h4 {
    font-size: 16px;
    color: #1e3a5f;
    margin-bottom: 8px;
    font-weight: 600;
}
.services .tab-pane .service-card p {
    color: #666;
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 0;
}

/* ===== 交替布局 (DaiMu) ===== */
.services .row.align-items-center {
    padding: 30px 0;
}
.services .row.align-items-center h3 {
    font-size: 19px;
    color: #1e3a5f;
    margin-bottom: 12px;
    font-weight: 600;
}
.services .row.align-items-center h3 + p {
    color: #2563eb;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 12px;
}
.services .row.align-items-center ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 0;
}
.services .row.align-items-center ul li {
    padding: 4px 0 4px 20px;
    position: relative;
    color: #555;
    font-size: 14px;
}
.services .row.align-items-center ul li:before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: #2563eb;
    font-weight: bold;
}
.services hr {
    border: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, #bfdbfe, transparent);
    margin: 0;
}
.service-highlight {
    text-align: center;
    padding: 30px 20px;
    background: #f0f4ff;
    border-radius: 12px;
    border: 1px solid #bfdbfe;
}
.service-highlight i {
    font-size: 40px;
    color: #2563eb;
    margin-bottom: 10px;
}
.service-highlight h4 {
    font-size: 18px;
    color: #1e3a5f;
    margin-bottom: 6px;
    font-weight: 600;
}
.service-highlight p {
    color: #666;
    font-size: 14px;
    margin-bottom: 0;
}
.services .row:has(> .service-highlight) {
    padding: 15px 0;
}

/* ===== Bootstrap Accordion (ZhuYun) ===== */
.services #accordion {
    margin-top: 10px;
}
.services #accordion .card {
    border: 1px solid #e8edf5;
    border-radius: 10px !important;
    margin-bottom: 12px;
    overflow: hidden;
}
.services #accordion .card:hover {
    border-color: #bfdbfe;
}
.services #accordion .card-header {
    background: #f8faff;
    border-bottom: none;
    padding: 0;
    border-radius: 10px 10px 0 0 !important;
}
.services #accordion .card-header .btn-link {
    display: block;
    width: 100%;
    text-align: left;
    padding: 16px 22px;
    font-size: 15px;
    font-weight: 600;
    color: #1e3a5f;
    text-decoration: none;
    border: none;
    background: transparent;
    position: relative;
}
.services #accordion .card-header .btn-link:hover {
    color: #2563eb;
    background: #eff6ff;
}
.services #accordion .card-header .btn-link .badge {
    background: #2563eb;
    color: #fff;
    font-size: 11px;
    font-weight: 500;
    padding: 3px 10px;
    border-radius: 20px;
    margin-left: 8px;
}
.services #accordion .card-body {
    padding: 20px 22px;
    background: #fff;
}
.services #accordion .card-body h6 {
    font-size: 14px;
    color: #334155;
    margin-bottom: 6px;
    font-weight: 600;
}
.services #accordion .card-body p {
    color: #666;
    font-size: 13px;
    line-height: 1.6;
    margin-bottom: 12px;
}
.services #accordion .card-body ul {
    list-style: none;
    padding-left: 0;
}
.services #accordion .card-body ul li {
    padding: 3px 0 3px 18px;
    position: relative;
    color: #555;
    font-size: 13px;
}
.services #accordion .card-body ul li:before {
    content: '\2022';
    position: absolute;
    left: 2px;
    color: #2563eb;
    font-weight: bold;
    font-size: 16px;
}
.services #accordion .collapse.show {
    border-top: 1px solid #e8edf5;
}

/* ===== FAQ列格式（兼容index.html的col-md-6布局） ===== */
.faq-section .col-md-6 {
    margin-bottom: 15px;
}
.faq-section h4 {
    font-size: 15px;
    color: #1e3a5f;
    margin-bottom: 8px;
    font-weight: 600;
    padding: 14px 18px 8px;
    background: #fff;
    border-radius: 10px 10px 0 0;
    border: 1px solid #e8edf5;
    border-bottom: none;
    margin-top: 0;
}
.faq-section h4 + p {
    color: #666;
    font-size: 14px;
    margin-bottom: 12px;
    line-height: 1.7;
    padding: 0 18px 14px;
    background: #fff;
    border-radius: 0 0 10px 10px;
    border: 1px solid #e8edf5;
    border-top: none;
}
.faq-section h4:hover {
    border-color: #bfdbfe;
}
.faq-section h4:hover + p {
    border-color: #bfdbfe;
}

/* ===== Guarantee section (兼容col-md-4布局) ===== */
.guarantee .col-md-4 {
    margin-bottom: 30px;
}
.guarantee h3 {
    font-size: 19px;
    color: #1e3a5f;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid #bfdbfe;
}
.guarantee p {
    color: #555;
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 12px;
}
.guarantee ul {
    list-style: none;
    padding-left: 0;
}
.guarantee ul li {
    padding: 6px 0 6px 22px;
    position: relative;
    color: #555;
    font-size: 14px;
    line-height: 1.6;
}
.guarantee ul li:before {
    content: '\2713';
    position: absolute;
    left: 0;
    color: #2563eb;
    font-weight: bold;
}

/* ===== News section (兼容col-md-6布局) ===== */
.news-section {
    padding: 70px 0;
    background: #f8faff;
}
.news-section h2 {
    font-size: 24px;
    color: #1e3a5f;
    margin-bottom: 30px;
    padding-bottom: 12px;
    position: relative;
    display: inline-block;
}
.news-section h2:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: #2563eb;
    border-radius: 2px;
}
.news-section h3 {
    font-size: 18px;
    color: #1e3a5f;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid #bfdbfe;
}
.news-section h4 {
    font-size: 15px;
    color: #334155;
    margin-top: 18px;
    margin-bottom: 6px;
    font-weight: 600;
}
.news-section p {
    color: #666;
    font-size: 14px;
    margin-bottom: 10px;
    text-align: justify;
}