:root {
    --primary: #165DFF;
    --secondary: #36BFFA;
    --accent: #7B61FF;
    --dark: #1D2939;
    --light: #F9FAFB;
    --gray-100: #F9FAFB;
    --gray-200: #F2F4F7;
    --gray-300: #E4E7EC;
    --gray-500: #667085;
}

/* 基础样式 */
.banner-title {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero-box {
    max-width: 768px;
    margin: 0 auto;
    text-align: center;
}

.title-1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--dark);
}

.lead-text {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--dark);
    opacity: 0.8;
}

.section-head {
    max-width: 768px;
    margin: 0 auto 4rem;
    text-align: center;
}

.title-2 {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark);
}

.desc-text {
    line-height: 1.6;
    color: #666;
}

/* 功能卡片 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    background: #fff;
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    border: 1px solid #eee;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.icon-box {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.primary-box {
    background: rgba(22, 93, 255, 0.1);
    color: var(--primary);
}

.secondary-box {
    background: rgba(54, 191, 250, 0.1);
    color: var(--secondary);
}

.accent-box {
    background: rgba(123, 97, 255, 0.1);
    color: var(--accent);
}

/* 核心功能 */
/*.core-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
    align-items: center;
}*/
/* 核心功能区域排版 */
.core-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 3rem;
    gap: 2rem;
}
.core-row > div {
    flex: 1;
    min-width: 300px;
}
/* 交错布局：偶数行反转 */
.core-row.row-reverse {
    flex-direction: row-reverse;
}

.row-reverse .core-left {
    order: 2;
}

.core-title {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.num-item {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}

.num-primary {
    background: var(--primary);
}

.num-accent {
    background: var(--accent);
}

.check-list {
    list-style: none;
    padding: 0;
}

.check-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: #666;
}

.check-list i {
    color: var(--primary);
}

.img-shadow {
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.img-click {
    width: 100%;
    height: auto;
    cursor: zoom-in;
}

/* 附加功能 */
.extra-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.extra-card {
    padding: 1.5rem;
    background: #f9fafb;
    border-radius: 0.75rem;
    border: 1px solid #eee;
}

.extra-card i {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

/* 优势模块 */
.bg-gradient {
    background: linear-gradient(to bottom right, rgba(22,93,255,0.05), rgba(54,191,250,0.05));
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.advantage-card {
    background: #fff;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    text-align: center;
}

.adv-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.adv-primary {
    background: rgba(22, 93, 255, 0.1);
    color: var(--primary);
}

.adv-secondary {
    background: rgba(54, 191, 250, 0.1);
    color: var(--secondary);
}

.adv-accent {
    background: rgba(123, 97, 255, 0.1);
    color: var(--accent);
}

/* 图片弹窗 */
.hr-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
}

.modal-dialog {
    position: relative;
    margin: 5% auto;
    width: 80%;
    height: 80%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 20px;
    color: #fff;
    font-size: 36px;
    cursor: pointer;
    z-index: 10000;
}

#modalImage {
    max-width: 100%;
    max-height: 100%;
    border-radius: 8px;
}

/* ==============================================
   核心修复：价格模块 + 美化切换样式
   ============================================== */
/* 修复价格卡片错位，居中显示 */
.price-card-col {
    position: relative !important;
    left: 0 !important;
    margin: 0 auto !important;
    float: none !important;
}

/* 美化切换按钮容器 */
.price-nav-wrap {
    display: flex;
    justify-content: center;
    margin-top: 30px;
}

.price-nav-inner .nav.info-tabs {
    display: inline-flex;
    background: var(--gray-100);
    padding: 4px;
    border-radius: 999px;
    gap: 0;
    border: 1px solid var(--gray-200);
}

/* 美化切换按钮样式 */
.price-nav-item {
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    padding: 8px 24px;
    border-radius: 999px;
    color: var(--gray-500);
    transition: all 0.3s ease;
    border: none;
    background: transparent;
}

.price-nav-item.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(22, 93, 255, 0.3);
}

/* 修复 Bootstrap tab 显示问题 */
.tab-content > .tab-pane {
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.tab-content > .tab-pane.active.show {
    display: block;
    opacity: 1;
}

/* 响应式适配 */
@media (max-width: 992px) {
    .features-grid,
    .core-row,
    .advantage-grid,
    .extra-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .features-grid,
    .core-row,
    .advantage-grid,
    .extra-grid {
        grid-template-columns: 1fr;
    }
}