/* ============================================
   子页面 - 通用样式
   - 通用 page-hero / page-content
   - 业务页 biz-tabs / biz-row
   ============================================ */

/* ============================================
   Hero
   ============================================ */
.page-hero {
    position: relative;
    width: 100%;
    height: 620px;
    overflow: hidden;
}

.page-hero-bg {
    position: absolute;
    inset: 0;
    background: center/cover no-repeat;
    z-index: 1;
}

.page-hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 2;
}

.page-hero-content {
    position: relative;
    z-index: 3;
    max-width: var(--container-max);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--container-side);
    padding-top: 180px;
}

.page-hero-title {
    font-size: 60px;
    font-weight: 600;
    color: var(--color-white);
    line-height: 1.03;
    margin-bottom: 14px;
}

.page-hero-subtitle {
    font-size: 30px;
    font-weight: 600;
    color: var(--color-white);
    line-height: 1.4;
    letter-spacing: 4px;
}

/* ============================================
   页面内容
   ============================================ */
.page-section {
    background: var(--color-bg);
    padding: 60px 0 80px;
}

.page-section-inner {
    /* max-width: 1776px; */
    margin: 0 auto;
    /* padding: 0 var(--container-side); */
}

.page-content {
    min-height: 400px;
}

/* ============================================
   业务页 - Tab 栏
   ============================================ */
.biz-tabs {
    padding: 40px 0 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    position: relative;
}

.biz-tabs-inner {
    max-width: 1776px;
    margin: 0 auto;
    padding: 0 var(--container-side);
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.biz-tab {
    text-align: center;
    font-size: 22px;
    color: var(--color-text);
    font-weight: 400;
    padding: 10px 4px 18px;
    position: relative;
    transition: color 0.2s;
}

.biz-tab:hover {
    color: var(--color-brand-gold);
}

.biz-tab.is-active {
    color: var(--color-brand-gold);
    font-weight: 600;
}

.biz-tab.is-active::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 0;
    width: 100px;
    height: 4px;
    background: var(--color-brand-gold);
}

/* ============================================
   业务页 - 内容行(图+文左右排版)
   ============================================ */
.biz-pane {
    display: none;
}

.biz-pane.is-active {
    display: block;
}

.biz-row {
    padding: 40px 0;
}

.biz-row + .biz-row {
    border-top: 1px solid #E8EAEE;
}

.biz-row-inner {
    width: 85%;
    margin: 0 auto;
    padding: 0 var(--container-side);
    display: flex;
    align-items: center;
    gap: 60px;
}

.biz-row-reverse {
    background: #f0f1f3;
}

.biz-row-reverse .biz-row-inner {
    flex-direction: row-reverse;
}

.biz-row-dark {
    background: var(--color-deep-navy);
    color: var(--color-white);
    padding: 60px 0 70px;
    margin-top: 30px;
    border-top: none;
    border-bottom: none;
}

.biz-row-dark .biz-row-inner {
    align-items: flex-start;
}

.biz-row-figure {
    flex: 0 0 441px;
    width: 441px;
}

.biz-row-figure-wide {
    flex: 0 0 480px;
    width: 45%;
    margin: 0 auto;
    margin-top: 95px;
}

.biz-row-figure img {
    width: 100%;
    height: auto;
    display: block;
}

.biz-row-text {
    flex: 1;
    font-size: 16px;
    line-height: 1.85;
    color: var(--color-text);
}

.biz-row-text p {
    margin-bottom: 16px;
}

.biz-row-text mark {
    background: none;
    color: #DBAE75;
}

.biz-row-text p:last-child {
    margin-bottom: 0;
}

.biz-row-dark .biz-row-text {
    color: var(--color-footer-text);
}

.biz-row-dark .biz-row-text p {
    margin-bottom: 38px;
}

/* ============================================
   响应式 - 子页面
   ============================================ */

/* 平板 (≤ 1200px) */
@media (max-width: 1200px) {
    .biz-tab {
        font-size: 17px;
        padding-bottom: 14px;
    }

    .biz-tab.is-active::after {
        width: 80px;
        height: 3px;
    }

    .biz-row {
        gap: 32px;
        padding: 32px var(--container-side);
    }

    .biz-row-figure,
    .biz-row-figure-wide {
        flex: 0 0 340px;
        width: 340px;
    }
}

/* 手机 (≤ 768px) */
@media (max-width: 768px) {
    .page-hero {
        height: 280px;
    }

    .page-hero-content {
        padding-top: 90px;
    }

    .page-hero-title {
        font-size: 28px;
    }

    .page-hero-subtitle {
        font-size: 14px;
        letter-spacing: 2px;
    }

    .page-section {
        padding: 30px 0 40px;
    }

    .page-section-inner {
        padding: 0 var(--container-side);
    }

    .biz-tabs {
        padding: 24px 0 12px;
    }

    .biz-tabs-inner {
        flex-wrap: wrap;
        gap: 0;
        padding: 0 var(--container-side);
    }

    .biz-tab {
        flex: 0 0 100%;
        font-size: 14px;
        padding: 12px 8px;
        text-align: center;
    }

    .biz-tab:nth-child(n+4) {
        flex: 0 0 100%;
    }

    .biz-tab.is-active::after {
        width: 50px;
        height: 3px;
    }

    .biz-row {
        padding: 24px 0;
    }

    .biz-row-inner {
        width: 85%;
        flex-direction: column;
        gap: 20px;
    }

    .biz-row-reverse {
        padding: 24px 0;
    }

    .biz-row-reverse .biz-row-inner {
        flex-direction: column;
    }

    .biz-row + .biz-row {
        border-top: 1px solid #E8EAEE;
    }

    .biz-row-dark {
        margin-top: 24px;
        padding: 30px 0 36px;
    }

    .biz-row-figure,
    .biz-row-figure-wide {
        flex: 0 0 auto;
        width: 100%;
        max-width: 360px;
        margin: 0 auto;
    }

    .biz-row-figure img,
    .biz-row-figure-wide img {
        width: 96%;
        height: auto;
        max-height: none;
        object-fit: contain;
        display: block;
    }

    .biz-row-dark .biz-row-figure-wide {
        max-width: 100%;
    }

    .biz-row-text {
        font-size: 14px;
        line-height: 1.8;
    }
}

/* 超小屏 (≤ 480px) */
@media (max-width: 480px) {
    .page-hero {
        height: 200px;
    }

    .page-hero-content {
        padding-top: 60px;
    }

    .page-hero-title {
        font-size: 22px;
    }

    .page-hero-subtitle {
        font-size: 12px;
    }

    .page-section {
        padding: 24px 0 30px;
    }

    .page-section-inner {
        padding: 0 var(--container-side);
    }

    .biz-tab {
        font-size: 13px;
    }

    .biz-row-text {
        font-size: 13px;
    }
}

/* ============================================
   产品页 - Tab 栏
   ============================================ */
.prod-tabs {
    padding: 40px 0 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    position: relative;
}

.prod-tabs-inner,
.prod-tabs {
    /* 兼容结构:tab 直接放在 .page-section-inner 里 */
}

.prod-tab {
    text-align: center;
    font-size: 22px;
    color: var(--color-text);
    font-weight: 400;
    padding: 10px 24px 18px;
    position: relative;
    transition: color 0.2s;
    flex: 1;
    max-width: 320px;
}

.prod-tab:hover {
    color: var(--color-brand-gold);
}

.prod-tab.is-active {
    color: var(--color-brand-gold);
    font-weight: 600;
}

.prod-tab.is-active::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 0;
    width: 100px;
    height: 4px;
    background: var(--color-brand-gold);
}

/* ============================================
   产品页 - 内容行
   ============================================ */
.prod-pane {
    display: none;
}

.prod-pane.is-active {
    display: block;
}

.prod-row {
    max-width: 1380px;
    margin: 0 auto;
    padding: 30px var(--container-side) 20px;
    font-size: 16px;
    line-height: 1.85;
    color: var(--color-text);
}

.prod-row p {
    margin-bottom: 14px;
}

.prod-row p:last-child {
    margin-bottom: 0;
}

.prod-figure-wide {
    max-width: 966px;
    margin: 20px auto 30px;
    padding: 0 var(--container-side);
}

.prod-figure-wide img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-card);
}

.prod-figure-caption {
    margin-top: 14px;
    text-align: center;
    font-size: 14px;
    color: var(--color-text-soft);
    line-height: 1.7;
}

/* ============================================
   响应式 - 产品页
   ============================================ */

/* 平板 (≤ 1200px) */
@media (max-width: 1200px) {
    .prod-tab {
        font-size: 17px;
        padding: 10px 16px 14px;
    }

    .prod-tab.is-active::after {
        width: 80px;
        height: 3px;
    }
}

/* 手机 (≤ 768px) */
@media (max-width: 768px) {
    .prod-tabs {
        flex-wrap: wrap;
        padding: 24px 0 12px;
        gap: 0;
    }

    .prod-tab {
        flex: 0 0 100%;
        font-size: 14px;
        padding: 12px 8px;
        max-width: none;
    }

    .prod-tab.is-active::after {
        width: 50px;
        height: 3px;
    }

    .prod-row {
        padding: 20px var(--container-side) 14px;
        font-size: 14px;
    }

    .prod-figure-wide {
        margin: 16px auto 24px;
    }
}

/* 超小屏 (≤ 480px) */
@media (max-width: 480px) {
    .prod-tab {
        font-size: 13px;
    }

    .prod-row {
        font-size: 13px;
    }

    .prod-figure-caption {
        font-size: 12px;
    }
}

/* ============================================
   案例页 - 卡片列表
   ============================================ */
.cases-list {
    max-width: 1776px;
    margin: 30px auto 0;
    padding: 0 var(--container-side);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
}

.case-card {
    border-radius: var(--radius-card);
    overflow: hidden;
    display: flex;
    flex-wrap: wrap;
    flex-direction: row;
}

.case-list {
    max-width: 1776px;
    width: 92%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 51px;
}

.case-card-image {
    width: 380px;
    height: 263px;
    border-radius: var(--radius-card);
    overflow: hidden;
    margin-right: 34px;
    flex-shrink: 0;
}

.case-card-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.case-card-body {
    flex: 1;
    min-width: 300px;
    padding-top: 10px;
    position: relative;
}

.case-card-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 16px;
    line-height: 1.27;
}

.case-card-desc {
    font-size: 16px;
    color: var(--color-text);
    line-height: 1.75;
    margin-bottom: 20px;
}

.case-card-body .btn-gold {
    background: var(--color-brand-gold);
    position: absolute;
    bottom: 0;
    left: 0;
        color: #fff;
        padding: 2px 5px;
        border-radius: 6px;
}

.case-more {
    max-width: 1776px;
    margin: 40px auto 0;
    padding: 0 var(--container-side);
    text-align: right;
}

.case-more-link {
    font-size: 18px;
    color: var(--color-text);
    transition: color 0.2s;
}

.case-more-link:hover {
    color: var(--color-brand-gold);
}

/* ============================================
   响应式 - 案例页
   ============================================ */

/* 平板 (≤ 1200px) */
@media (max-width: 1200px) {
    .case-list {
        gap: 30px;
    }

    .case-card-image {
        height: 200px;
    }

    .case-card-desc {
        margin-bottom: 50px;
    }
}

/* 中等屏 (≤ 1440px) */
@media (max-width: 1440px) {
    .case-card-desc {
        margin-bottom: 50px;
    }
}

/* 平板 (≤ 1024px) */
@media (max-width: 1024px) {
    .case-list {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .case-card {
        flex-direction: column;
    }

    .case-card-image {
        width: 100%;
        height: 280px;
        margin-right: 0;
        margin-bottom: 16px;
        border-radius: 8px;
    }

    .case-card-image img {
        border-radius: 8px;
    }

    .case-card-body {
        padding-top: 0;
        position: relative;
    }

    .case-card-body .btn-gold {
        position: relative;
        width: 100%;
        height: 36px;
        font-size: 14px;
    }

    .case-card-title {
        font-size: 18px;
        margin-bottom: 10px;
    }

    .case-card-desc {
        font-size: 14px;
        margin-bottom: 16px;
        line-height: 1.6;
    }
}

/* 手机 (≤ 768px) */
@media (max-width: 768px) {
    .case-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .case-card {
        flex-direction: column;
    }

    .case-card-image {
        height: 240px;
        margin-right: 0;
        margin-bottom: 16px;
        border-radius: 8px;
    }

    .case-card-image img {
        border-radius: 8px;
    }

    .case-card-body {
        padding-top: 0;
        position: relative;
    }

    .case-card-body .btn-gold {
        position: relative;
        width: 100%;
        height: 36px;
        font-size: 14px;
        color: #fff;
        padding: 2px 5px;
        border-radius: 6px;
    }

    .case-card-title {
        font-size: 16px;
        margin-bottom: 10px;
    }

    .case-card-desc {
        font-size: 13px;
        margin-bottom: 14px;
        line-height: 1.6;
    }

    .case-more {
        text-align: center;
        margin-top: 24px;
    }

    .case-more-link {
        font-size: 14px;
    }
}

/* 超小屏 (≤ 480px) */
@media (max-width: 480px) {
    .case-card-image {
        height: 150px;
    }

    .case-card-title {
        font-size: 15px;
    }

    .case-card-desc {
        font-size: 12px;
    }
}