/* 全局样式重置 不影响网站其他页面 */
.custom-battery-page * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', 'Microsoft YaHei', sans-serif;
}

.custom-battery-page {
    background: #f8fafc;
    color: #1e293b;
    line-height: 1.7;
    padding-bottom: 0;
}

.custom-battery-page .container {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 首屏大幅Banner */
.custom-battery-page .hero {
    background: linear-gradient(135deg, #0f172a, #1e3a5f);
    color: #fff;
    padding: 350px 0;
    border-radius: 0 0 28px 28px;
    margin-bottom: 90px;
    position: relative;
    overflow: hidden;
}

.custom-battery-page .hero::after {
    content: "";
    position: absolute;
    right: 0;
    top: 0;
    width: 100%;
    height: 100%;
    /* 【替换1：首屏Banner背景图 推荐尺寸：1920×1200 内容：工厂PACK产线全景/电池组成品大特写】 */
    background: url('//ueeshop.ly200-cdn.com/u_file/UPBH/UPBH996/2607/03/photo/3-181558d6e9.png') no-repeat center;
    background-size: cover;
    opacity: 1;
    z-index: 1;
}

.custom-battery-page .hero-inner {
    position: relative;
    z-index: 2;
    max-width: 780px;
}

.custom-battery-page .hero h1 {
    font-size: 52px;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: 0.5px;
}

.custom-battery-page .hero p {
    font-size: 24px;
    opacity: 0.92;
    margin-bottom: 18px;
}

.custom-battery-page .hero-sub {
    font-size: 19px;
    opacity: 0.85;
    line-height: 1.8;
}

/* 公共区块样式 */
.custom-battery-page .section {
    margin-bottom: 110px;
}

.custom-battery-page .section-head {
    text-align: center;
    margin-bottom: 60px;
}

.custom-battery-page .section-head h2 {
    font-size: 36px;
    color: #0f172a;
    margin-bottom: 16px;
}

.custom-battery-page .section-head .divider {
    display: inline-block;
    width: 85px;
    height: 4px;
    background: #0ea5e9;
    border-radius: 2px;
    margin-bottom: 20px;
}

.custom-battery-page .section-head p {
    max-width: 850px;
    margin: 0 auto;
    color: #64748b;
    font-size: 18px;
}

/* 定制范围双列大图卡片 */
.custom-battery-page .scope-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.custom-battery-page .scope-card {
    background: #fff;
    border-radius: 24px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    transition: 0.3s;
}

.custom-battery-page .scope-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 14px 36px rgba(0, 0, 0, 0.1);
}

.custom-battery-page .scope-card-header {
    height: 320px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.custom-battery-page .scope-card-header::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 65%;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.65));
}

.custom-battery-page .scope-card-header h3 {
    position: absolute;
    left: 40px;
    bottom: 28px;
    color: #fff;
    font-size: 30px;
    font-weight: 600;
    z-index: 2;
}

.custom-battery-page .scope-card-body {
    padding: 44px;
}

.custom-battery-page .scope-category {
    margin-bottom: 36px;
}

.custom-battery-page .scope-category:last-child {
    margin-bottom: 0;
}

.custom-battery-page .scope-category h4 {
    font-size: 21px;
    color: #0f172a;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
}

.custom-battery-page .scope-category h4::before {
    content: "";
    display: inline-block;
    width: 6px;
    height: 20px;
    background: #0ea5e9;
    border-radius: 3px;
    margin-right: 14px;
}

.custom-battery-page .scope-list {
    list-style: none;
    color: #475569;
    padding-left: 20px;
}

.custom-battery-page .scope-list li {
    margin-bottom: 14px;
    position: relative;
    padding-left: 18px;
    font-size: 16px;
}

.custom-battery-page .scope-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #0ea5e9;
    font-weight: bold;
    font-size: 18px;
}

/* 定制方案四宫格卡片 */
.custom-battery-page .solution-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.custom-battery-page .solution-card {
    background: #fff;
    border-radius: 24px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    transition: 0.3s;
}

.custom-battery-page .solution-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 14px 36px rgba(0, 0, 0, 0.1);
}

.custom-battery-page .solution-img {
    height: 380px;
    background-size: cover;
    background-position: center;
}

.custom-battery-page .solution-content {
    padding: 44px;
}

.custom-battery-page .solution-content h3 {
    font-size: 28px;
    color: #0f172a;
    margin-bottom: 20px;
}

.custom-battery-page .solution-desc {
    color: #64748b;
    margin-bottom: 26px;
    font-size: 17px;
}

.custom-battery-page .solution-list {
    list-style: none;
}

.custom-battery-page .solution-list li {
    margin-bottom: 18px;
    padding: 16px 20px;
    background: #f8fafc;
    border-radius: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 16px;
}

.custom-battery-page .solution-list li span:first-child {
    font-weight: 500;
    color: #1e293b;
}

.custom-battery-page .solution-list li span:last-child {
    color: #64748b;
    font-size: 15px;
}

/* FAQ折叠面板 */
.custom-battery-page .faq-section {
    background: #fff;
    border-radius: 24px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
    padding: 52px;
}

.custom-battery-page .faq-item {
    border-bottom: 1px solid #e2e8f0;
    margin-bottom: 22px;
    padding-bottom: 22px;
}

.custom-battery-page .faq-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.custom-battery-page .faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 20px;
    font-weight: 500;
    color: #0f172a;
    transition: 0.2s;
}

.custom-battery-page .faq-question:hover {
    color: #0ea5e9;
}

.custom-battery-page .faq-question::after {
    content: "+";
    font-size: 28px;
    font-weight: bold;
    color: #0ea5e9;
    transition: transform 0.3s;
}

.custom-battery-page .faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.custom-battery-page .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding-top: 0;
    color: #64748b;
    line-height: 1.8;
    font-size: 16px;
}

.custom-battery-page .faq-item.active .faq-answer {
    max-height: 600px;
    padding-top: 18px;
}

/* 高级分栏询盘表单 */
.custom-battery-page .inquiry-section {
    background: #fff;
    border-radius: 24px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 0;
}

.custom-battery-page .inquiry-left {
    background: linear-gradient(135deg, #0f172a, #1e3a5f);
    color: #fff;
    padding: 64px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.custom-battery-page .inquiry-left h3 {
    font-size: 32px;
    margin-bottom: 26px;
}

.custom-battery-page .inquiry-left p {
    opacity: 0.92;
    margin-bottom: 40px;
    line-height: 1.8;
    font-size: 17px;
}

.custom-battery-page .inquiry-contact {
    margin-bottom: 36px;
}

.custom-battery-page .inquiry-contact li {
    list-style: none;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    font-size: 16px;
}

.custom-battery-page .inquiry-contact li span:first-child {
    width: 28px;
    margin-right: 16px;
    color: #0ea5e9;
    font-weight: bold;
    font-size: 20px;
}

.custom-battery-page .inquiry-right {
    padding: 64px;
}

.custom-battery-page .inquiry-right h4 {
    font-size: 26px;
    margin-bottom: 32px;
    color: #0f172a;
}

.custom-battery-page .form-group {
    margin-bottom: 26px;
    position: relative;
}

.custom-battery-page .form-input {
    width: 100%;
    padding: 22px 24px;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    font-size: 17px;
    background: #f8fafc;
    outline: none;
    transition: all 0.3s;
}

.custom-battery-page .form-input:focus {
    border-color: #0ea5e9;
    background: #fff;
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.1);
}

.custom-battery-page .form-label {
    position: absolute;
    left: 24px;
    top: 22px;
    color: #94a3b8;
    transition: all 0.2s;
    pointer-events: none;
    font-size: 16px;
}

.custom-battery-page .form-input:focus + .form-label,
.custom-battery-page .form-input:not(:placeholder-shown) + .form-label {
    top: -10px;
    left: 18px;
    font-size: 13px;
    background: #fff;
    padding: 0 8px;
    color: #0ea5e9;
}

.custom-battery-page .form-textarea {
    min-height: 180px;
    resize: vertical;
}

.custom-battery-page .submit-btn {
    width: 100%;
    padding: 22px;
    background: #0ea5e9;
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 19px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 16px rgba(14, 165, 233, 0.2);
}

.custom-battery-page .submit-btn:hover {
    background: #0284c7;
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(14, 165, 233, 0.28);
}

/* 响应式适配 */
@media(max-width: 1024px) {
    .custom-battery-page .scope-grid { grid-template-columns: 1fr; }
    .custom-battery-page .solution-grid { grid-template-columns: 1fr; }
    .custom-battery-page .inquiry-section { grid-template-columns: 1fr; }
    .custom-battery-page .inquiry-left { padding: 52px; }
    .custom-battery-page .inquiry-right { padding: 52px; }
}

@media(max-width: 640px) {
    .custom-battery-page .hero { padding: 90px 0; }
    .custom-battery-page .hero h1 { font-size: 36px; }
    .custom-battery-page .scope-card-header { height: 260px; }
    .custom-battery-page .solution-img { height: 300px; }
    .custom-battery-page .faq-section { padding: 36px; }
    .custom-battery-page .inquiry-left, .custom-battery-page .inquiry-right { padding: 40px 28px; }
}