/* 主内容宽度变量：与 .container、底部内层共用，保证全站内容左右对齐 */
:root {
    --container-w: 80vw;
    --container-max: 1500px;
    --gutter: 20px;
}

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
    background-color: #fff;
}

/* 无障碍：仅屏幕阅读器可见 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 主内容区容器：最大 1500px，PC 端不超过屏幕 80%，移动端不超过 92% */
.container {
    width: var(--container-w);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

@media (max-width: 768px) {
    :root {
        --container-w: 92%;
        --gutter: 12px;
    }

    .container {
        width: var(--container-w);
        padding: 0 var(--gutter);
    }
}

/* 顶部导航 */
.header {
    width: 100%;
    height: 70px;
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    position: relative;
    z-index: 100;
}

.header-inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.logo img {
    height: 30px;
    width: auto;
    display: block;
}

.nav {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav a {
    font-size: 15px;
    color: #333;
    text-decoration: none;
    white-space: nowrap;
    transition: color 0.3s;
}

.nav a:hover {
    color: #0c53fe;
}

.nav a.active {
    color: #0c53fe;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-shrink: 0;
}

.phone {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    color: #333;
    white-space: nowrap;
    text-decoration: none;
}

.phone img {
    width: 18px;
    height: 18px;
    display: block;
}

.consult-btn {
    padding: 8px 20px;
    background-color: #0c53fe;
    color: #fff;
    font-size: 14px;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.3s;
}

.consult-btn:hover {
    background-color: #0052cc;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    padding: 0;
    border: none;
    background: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
}

.menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: #333;
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Banner 轮播 */
.banner-swiper {
    width: 100%;
    position: relative;
}

.banner-swiper .swiper-slide {
    position: relative;
    overflow: hidden;
}

.banner-swiper .banner-img {
    width: 100%;
    height: 520px;
    object-fit: cover;
    object-position: center right;
    display: block;
}

.banner-content-wrap {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
}

.banner-content {
    width: 50%;
    max-width: 620px;
}

.banner-title {
    font-size: 36px;
    color: #222;
    line-height: 1.3;
    margin-bottom: 18px;
    font-weight: 500;
}

.banner-title span {
    color: #0c53fe;
    margin-right: 8px;
}

.banner-subtitle {
    font-size: 20px;
    color: #333;
    margin-bottom: 30px;
}

.banner-features {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.feature-icon {
    width: 42px;
    height: 42px;
    background: #0c53fe;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon svg {
    width: 22px;
    height: 22px;
    fill: #fff;
}

.feature-text h2 {
    font-size: 18px;
    color: #000;
    font-weight: normal;
    margin-bottom: 4px;
}

.feature-text p {
    font-size: 14px;
    color: #212c37;
    line-height: 1.5;
}

.banner-form {
    display: flex;
    gap: 10px;
    max-width: 430px;
}

.banner-form input {
    flex: 1;
    min-width: 0;
    height: 44px;
    padding: 0 16px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    outline: none;
}

.banner-form input::placeholder {
    color: #999;
}

.banner-form button {
    height: 44px;
    padding: 0 28px;
    background: #0c53fe;
    color: #fff;
    font-size: 14px;
    font-family: inherit;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s;
}

.banner-form button:hover {
    background: #0052cc;
}

/* Swiper 分页器和箭头 */
.banner-swiper .swiper-pagination {
    bottom: 20px;
}

.banner-swiper .swiper-pagination-bullet {
    width: 10px;
    height: 10px;
    background: #fff;
    opacity: 0.7;
}

.banner-swiper .swiper-pagination-bullet-active {
    opacity: 1;
    background: #0c53fe;
}

.banner-swiper .swiper-button-prev,
.banner-swiper .swiper-button-next {
    color: #fff;
    background: rgba(0, 0, 0, 0.25);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    transition: background 0.3s;
}

.banner-swiper .swiper-button-prev:hover,
.banner-swiper .swiper-button-next:hover {
    background: rgba(0, 0, 0, 0.45);
}

.banner-swiper .swiper-button-prev::after,
.banner-swiper .swiper-button-next::after {
    font-size: 18px;
}

/* 服务客户 */
.customers {
    padding: 70px 0;
    background: #fff;
}

.section-head {
    text-align: center;
    margin-bottom: 30px;
}

.section-title {
    font-size: 36px;
    color: #000000;
    font-weight: bold;
}

/* .section-title::after {
    content: "";
    display: block;
    width: 40px;
    height: 3px;
    background: #0c53fe;
    margin: 14px auto 0;
    border-radius: 2px;
} */

.section-desc {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
    max-width: 1200px;
    margin: 20px auto 0 auto;
}

/* 无缝循环滚动容器 */
.customer-marquee {
    display: flex;
    width: 100%;
    overflow: hidden;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent);
}

.customer-track {
    display: flex;
    align-items: center;
    gap: 20px;
    padding-right: 20px;
    list-style: none;
    flex-shrink: 0;
    animation: customer-scroll 30s linear infinite;
}

.customer-marquee:hover .customer-track {
    animation-play-state: paused;
}

@keyframes customer-scroll {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(-100%);
    }
}

.customer-item {
    flex-shrink: 0;
    width: 170px;
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 20px 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: box-shadow 0.3s, transform 0.3s, border-color 0.3s;
}

.customer-item:hover {
    border-color: #cddffd;
    box-shadow: 0 6px 18px rgba(1, 100, 255, 0.12);
    transform: translateY(-3px);
}

.customer-item img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 尊重系统减少动效设置 */
@media (prefers-reduced-motion: reduce) {
    .customer-track {
        animation: none;
    }

    .customer-marquee {
        overflow-x: auto;
    }
}

/* 服务产品 */
.services-container {
    width: 100%;
    background-color: #f6f7fa;
}

.services {
    padding: 60px 0;
}

.services-tabs {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 32px;
}

.service-tab {
    position: relative;
    padding: 10px 4px;
    font-size: 24px;
    color: #000000;
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.3s;
}

.service-tab.active,
.service-tab:hover {
    color: #0c53fe;
}

.service-tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: #0c53fe;
}

.tab-panel {
    display: none;
    background-color: #fff;
    padding: 26px;
}

.tab-panel.active {
    display: block;
}

.category-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid #eee;
    margin-bottom: 32px;
}

.category-nav {
    flex: 1;
    display: flex;
    gap: 0;
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.category-nav::-webkit-scrollbar {
    display: none;
}

.category-tab {
    flex-shrink: 0;
    padding: 14px 0;
    margin-right: 70px;
    font-size: 15px;
    color: #666;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: color 0.3s, border-color 0.3s;
    white-space: nowrap;
}

.category-tab.active,
.category-tab:hover {
    color: #0c53fe;
    border-bottom-color: #0c53fe;
}

.category-arrow {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    background: #fff;
    color: #666;
    font-size: 20px;
    cursor: pointer;
    flex-shrink: 0;
    transition: border-color 0.3s, color 0.3s;
}

.category-arrow:hover {
    border-color: #0c53fe;
    color: #0c53fe;
}

.category-panel {
    display: none;
}

.category-panel.active {
    display: block;
}

.panel-tip {
    padding: 40px 0;
    text-align: center;
    color: #999;
    font-size: 14px;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px 32px;
    list-style: none;
}

.service-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 12px 0;
}

.service-icon {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.service-icon img {
    width: 34px;
    height: 34px;
    display: block;
}

.service-text {
    flex: 1;
    min-width: 0;
}

.service-name {
    font-size: 20px;
    color: #000;
    font-weight: 500;
    margin-bottom: 6px;
}

.service-desc {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
}

/* 服务城市 */
.service-city {
    position: relative;
    padding: 80px 0;
    background: #020617;
    color: #fff;
    overflow: hidden;
}

.service-city-bg {
    position: absolute;
    inset: 0;
    background: url('../images/city_bg.jpg') no-repeat center center / cover;
    z-index: 0;
}

.service-city-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(2, 6, 23, 0.78);
    z-index: 1;
}

.service-city-inner {
    position: relative;
    z-index: 2;
    max-width: 1400px;
}

.section-head.light .section-title {
    color: #fff;
    margin-bottom: 30px;
}

.section-head.light .section-desc {
    color: rgba(255, 255, 255, 0.75);
    max-width: 760px;
    margin: 0 auto;
}

.city-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px 28px;
    max-width: 60%;
    margin: 40px 0 70px;
}

.stat-item {
    text-align: left;
}

.stat-num {
    font-size: 56px;
    font-weight: 500;
    color: #318af7;
    margin-bottom: 8px;
    line-height: 1;
}

.stat-num .unit {
    font-size: 18px;
    font-weight: 400;
    color: rgba(255, 255, 255, 1);
    margin-left: 2px;
}

.stat-label {
    font-size: 16px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.92);
    margin-bottom: 4px;
}

.stat-en {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.city-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    padding: 18px 28px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.city-list {
    display: flex;
    gap: 36px;
    list-style: none;
    flex-wrap: wrap;
}

.city-list a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 20px;
    transition: color 0.3s;
}

.city-list a:hover {
    color: #0c53fe;
}

.city-more {
    white-space: nowrap;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: color 0.3s;
}

.city-more:hover {
    color: #0c53fe;
}

.city-more .arrow {
    font-size: 18px;
}

/* 客户案例 */
.cases {
    position: relative;
    padding: 60px 0;
    overflow: hidden;
    background: #f3f8ff url('../images/case_bg.jpg') no-repeat center center / cover;
}

/* 背景图遮罩：保证卡片与文字的可读性 */
/* .cases::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(243, 248, 255, 0.8);
    z-index: 0;
} */

.cases .container {
    position: relative;
    z-index: 1;
}

.case-swiper {
    position: relative;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    list-style: none;
}

.case-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.3s, transform 0.3s;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.case-card:hover {
    box-shadow: 0 10px 28px rgba(1, 100, 255, 0.12);
    transform: translateY(-4px);
}

.case-img {
    aspect-ratio: 18 / 10;
    overflow: hidden;
}

.case-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s;
}

.case-card:hover .case-img img {
    transform: scale(1.05);
}

.case-info {
    padding: 18px 20px 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-title {
    font-size: 18px;
    font-weight: 500;
    color: #222;
    margin-bottom: 8px;
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.case-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 覆盖 Swiper 默认的绝对定位，让分页点排到卡片下方，避免与内容重叠 */
.case-pagination.swiper-pagination {
    position: static;
    width: auto;
    bottom: auto;
    left: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 44px;
    margin-bottom: 6px;
}

.case-pagination .swiper-pagination-bullet {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #cdd4e0;
    opacity: 1;
    cursor: pointer;
    transition: background 0.3s, transform 0.3s;
}

.case-pagination .swiper-pagination-bullet-active {
    background: #0164ff;
    transform: scale(1.2);
}

/* 在线答疑 */
.qa {
    padding: 80px 0;
    background: #fff;
}

.qa-swiper {
    position: relative;
}

.qa-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    list-style: none;
}

.qa-card {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border: 1px solid #f0f2f5;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: box-shadow 0.3s, transform 0.3s;
}

.qa-card:hover {
    box-shadow: 0 10px 28px rgba(1, 100, 255, 0.1);
    transform: translateY(-4px);
}

.qa-question {
    font-size: 18px;
    font-weight: 500;
    color: #050505;
    line-height: 1.45;
    margin-bottom: 12px;
    /* 标题最多两行，超出显示省略号；不足两行也占位，保证卡片标题区高度一致 */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.qa-date {
    font-size: 13px;
    color: #999;
    white-space: nowrap;
}

.qa-answer {
    font-size: 14px;
    color: #666;
    line-height: 1.65;
    margin-bottom: 18px;
    flex: 1;
}

.qa-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px 12px;
    margin-top: auto;
}

.qa-link {
    font-size: 14px;
    color: #0164ff;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: color 0.3s;
}

.qa-link:hover {
    color: #0164ff;
}

.qa-link .arrow {
    transition: transform 0.3s;
}

.qa-link:hover .arrow {
    transform: translateX(4px);
}

/* 覆盖 Swiper 默认绝对定位，避免分页点与卡片重叠 */
.qa-pagination.swiper-pagination {
    position: static;
    width: auto;
    bottom: auto;
    left: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 44px;
    margin-bottom: 6px;
}

.qa-pagination .swiper-pagination-bullet {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #cdd4e0;
    opacity: 1;
    cursor: pointer;
    transition: background 0.3s, transform 0.3s;
}

.qa-pagination .swiper-pagination-bullet-active {
    background: #0164ff;
    transform: scale(1.2);
}

/* 一站式服务 */
.one-stop {
    position: relative;
    padding: 56px 0;
    background: url('../images/one-stop-bg.jpg') no-repeat center center / cover;
    overflow: hidden;
}

/* 半透明浅色遮罩，保证居中文字在背景图上的可读性 */
/* .one-stop::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(239, 247, 255, 0.92) 0%, rgba(239, 247, 255, 0.72) 45%, rgba(239, 247, 255, 0.55) 100%);
    pointer-events: none;
} */

.one-stop-inner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.one-stop-content {
    width: 100%;
    max-width: 780px;
    text-align: center;
}

.one-stop-title {
    font-size: 32px;
    font-weight: 500;
    color: #2c7aec;
    line-height: 1.3;
    margin-bottom: 20px;
}

.one-stop-title em {
    color: #2c7aec;
    font-style: normal;
}

.one-stop-desc {
    font-size: 22px;
    color: #2c7aec;
    line-height: 1.8;
    margin: 0 auto 26px;
    max-width: 1200px;
}

.one-stop-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 38px;
    background: #006aed;
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    border-radius: 6px;
    letter-spacing: 1px;
    text-decoration: none;
    transition: background 0.3s, transform 0.3s;
}

.one-stop-btn:hover {
    background: #0052cc;
    transform: translateY(-2px);
}

/* 平板适配 */
@media (max-width: 1024px) {
    .nav {
        gap: 24px;
    }

    .banner-swiper .banner-img {
        height: 440px;
    }

    .banner-content {
        width: 60%;
    }

    .banner-title {
        font-size: 30px;
    }

    .customer-item {
        width: 150px;
    }

    .service-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px 24px;
    }

    .case-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px 20px;
    }

    .case-info {
        padding: 16px 18px 20px;
    }

    .qa-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 18px 20px;
    }

    .qa-card {
        padding: 20px;
    }

    .qa-question {
        font-size: 15px;
    }

    .one-stop {
        padding: 80px 0;
    }

    .one-stop-title {
        font-size: 32px;
    }

    .one-stop-desc {
        font-size: 15px;
    }
}

/* 移动端适配 */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .phone {
        display: none;
    }

    .header-right {
        gap: 12px;
    }

    .consult-btn {
        padding: 7px 14px;
        font-size: 13px;
    }

    .nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: #fff;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        display: none;
    }

    .nav.active {
        display: flex;
    }

    .nav a {
        padding: 14px 20px;
        font-size: 16px;
        border-bottom: 1px solid #f0f0f0;
    }

    .nav a:last-child {
        border-bottom: none;
    }

    .banner-swiper .banner-img {
        height: auto;
    }

    .banner-content-wrap {
        position: static;
        transform: none;
        padding-top: 24px;
        padding-bottom: 24px;
        background: #f5f9ff;
    }

    .banner-content {
        width: 100%;
        max-width: none;
    }

    .banner-title {
        font-size: 24px;
    }

    .banner-subtitle {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .banner-features {
        gap: 14px;
        margin-bottom: 20px;
    }

    .feature-text p {
        font-size: 13px;
    }

    /* 避免 iOS 聚焦时自动缩放 */
    .banner-form input {
        font-size: 16px;
    }

    .banner-form {
        max-width: 100%;
    }

    .banner-swiper .swiper-button-prev,
    .banner-swiper .swiper-button-next {
        display: none;
    }

    .banner-swiper .swiper-pagination {
        bottom: 12px;
    }

    .banner-swiper .swiper-pagination-bullet {
        width: 8px;
        height: 8px;
    }

    .cases {
        padding: 50px 0;
    }

    .case-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .case-info {
        padding: 14px 16px 18px;
    }

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

    .case-desc {
        font-size: 13px;
    }

    .case-pagination.swiper-pagination {
        margin-top: 32px;
    }

    .qa {
        padding: 50px 0;
    }

    .qa-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .qa-card {
        padding: 18px;
    }

    .qa-question {
        font-size: 15px;
    }

    .qa-answer {
        font-size: 13px;
        margin-bottom: 14px;
    }

    .qa-pagination.swiper-pagination {
        margin-top: 32px;
    }

    .customers {
        padding: 40px 0;
    }

    .section-head {
        margin-bottom: 24px;
    }

    .section-head.light .section-title {
        margin-bottom: 24px;
    }

    .section-title {
        font-size: 24px;
    }

    .section-desc {
        font-size: 14px;
    }

    .customer-track {
        gap: 12px;
        padding-right: 12px;
    }

    .customer-item {
        width: 132px;
        padding: 14px 10px;
    }

    .services {
        padding: 40px 0 10px;
    }

    .services-tabs {
        gap: 28px;
        margin-bottom: 24px;
    }

    .service-tab {
        font-size: 16px;
    }

    .category-tab {
        padding: 12px 16px;
        font-size: 14px;
    }

    .service-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px 18px;
    }

    .service-item {
        gap: 10px;
        padding: 8px 0;
    }

    .service-icon {
        width: 40px;
        height: 40px;
    }

    .service-icon img {
        width: 24px;
        height: 24px;
    }

    .service-name {
        font-size: 15px;
        margin-bottom: 4px;
    }

    .service-desc {
        font-size: 12px;
    }

    .service-city {
        padding: 50px 0;
    }

    .city-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 28px 20px;
        max-width: 100%;
        margin: 28px 0 50px;
    }

    .stat-num {
        font-size: 32px;
    }

    .city-bar {
        flex-direction: column;
        align-items: stretch;
        padding: 16px 20px;
    }

    .city-list {
        gap: 16px 24px;
        justify-content: center;
    }

    .one-stop {
        padding: 50px 0;
        text-align: center;
    }

    .one-stop-inner {
        min-height: auto;
    }

    .one-stop-content {
        width: 100%;
        max-width: none;
    }

    .one-stop-title {
        font-size: 24px;
        margin-bottom: 14px;
    }

    .one-stop-desc {
        font-size: 14px;
        margin-bottom: 18px;
    }

    .one-stop-btn {
        height: 42px;
        padding: 0 28px;
        font-size: 14px;
    }
}

@media (max-width: 375px) {
    .banner-title {
        font-size: 20px;
    }

    .consult-btn {
        padding: 6px 12px;
        font-size: 12px;
    }

    .customer-item {
        width: 118px;
    }

    .service-grid {
        grid-template-columns: 1fr;
    }

    .case-grid {
        grid-template-columns: 1fr;
    }

    .qa-grid {
        grid-template-columns: 1fr;
    }

    .category-arrow {
        width: 28px;
        height: 28px;
        font-size: 16px;
    }

    .city-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 22px 16px;
    }

    .stat-num {
        font-size: 28px;
    }

    .city-list {
        gap: 14px 20px;
    }

    .city-more {
        font-size: 13px;
    }
}


/* 底部导航 */
.footer {
    background: #061a2b;
    color: rgba(255, 255, 255, 0.8);
}
.footer-inner {
    width: var(--container-w);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 54px var(--gutter) 46px;
}
.footer-top {
    margin-bottom: 36px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-logo {
    display: inline-block;
    text-decoration: none;
}
.footer-logo img {
    display: block;
    height: 32px;
    width: auto;
    /* 深色底统一显示为白色标识；如需保留图片原色，删除此行 */
    /* filter: brightness(0) invert(1); */
}
.footer-main {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: clamp(40px, 6vw, 90px);
}
.footer-qr {
    flex: 0 0 auto;
}
.footer-icon {
    display: block;
    width: 29px;
    height: auto;
    margin-bottom: 18px;
    /* 深色底统一显示为白色标识；如需保留图片原色，删除此行 */
    filter: brightness(0) invert(1);
}
.footer-qr-list {
    display: flex;
    gap: 18px;
}
.footer-qr-item {
    margin: 0;
    text-align: center;
}
.footer-qr-item img {
    width: 112px;
    height: 112px;
    object-fit: cover;
    display: block;
    border-radius: 6px;
    background: #fff;
    padding: 2px;
}
.footer-qr-item figcaption {
    margin-top: 10px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.75);
    white-space: nowrap;
}
.footer-site {
    margin-top: 18px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}
.footer-site a {
    display: block;
    margin-top: 6px;
    font-size: 18px;
    font-weight: 500;
    color: #fff;
    text-decoration: none;
    transition: color 0.3s;
}
.footer-site a:hover {
    color: #0164ff;
}
.footer-nav {
    flex: 1;
    display: flex;
    justify-content: space-between;
    gap: clamp(20px, 3vw, 40px);
    min-width: 0;
}
.footer-nav .footer-col {
    flex: 0 1 auto;
}
.footer-contact {
    flex: 0 0 auto;
    max-width: 220px;
}
.footer-col dt {
    font-size: 16px;
    font-weight: 500;
    color: #fff;
    margin-bottom: 18px;
}
.footer-col dd {
    font-size: 14px;
    line-height: 2.2;
    color: rgba(255, 255, 255, 0.65);
}
.footer-col dd a {
    color: rgba(255, 255, 255, 0.65);
    transition: color 0.3s;
    text-decoration: none;
}
.footer-col dd a:hover {
    color: #fff;
}
.footer-bar {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 16px 0;
    background-color: #132636;
}
.footer-bar-inner {
    width: var(--container-w);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--gutter);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}
.footer-bar-inner a {
    color: rgba(255, 255, 255, 0.45);
    text-decoration: none;
    transition: color 0.3s;
}
.footer-bar-inner a:hover {
    color: #fff;
}

@media (max-width: 1024px) {
    .footer-main {
        gap: 40px;
    }
    .footer-nav {
        flex-wrap: wrap;
        justify-content: flex-start;
        gap: 28px 36px;
    }
    .footer-nav .footer-col {
        flex: 0 0 calc(33.333% - 24px);
    }
    .footer-contact {
        max-width: none;
        flex: 0 0 100%;
    }
}

@media (max-width: 768px) {
    .footer-inner {
        padding: 42px var(--gutter) 36px;
    }
    .footer-top {
        margin-bottom: 28px;
        padding-bottom: 18px;
    }
    .footer-logo img {
        height: 36px;
    }
    .footer-main {
        flex-direction: column;
        gap: 32px;
    }
    .footer-icon {
        margin: 0 auto 18px;
    }
    .footer-qr-list {
        justify-content: center;
    }
    .footer-site {
        text-align: center;
    }
    .footer-nav .footer-col {
        flex: 0 0 calc(50% - 18px);
    }
    .footer-bar-inner {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .footer-nav .footer-col {
        flex: 0 0 100%;
    }
}

/* ==================== 个人服务页 banner ==================== */
.page-banner {
    position: relative;
    min-height: 520px;
    padding: 90px 0;
    background: #eef7ff url('../images/personal-banner.jpg') no-repeat center right;
    background-size: cover;
    overflow: hidden;
}

/* 左侧遮罩：保证文字可读，同时让右侧插画保持可见 */
.page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    /* background: linear-gradient(90deg,
        rgba(238, 247, 255, 0.98) 0%,
        rgba(238, 247, 255, 0.92) 42%,
        rgba(238, 247, 255, 0.55) 65%,
        rgba(238, 247, 255, 0) 80%); */
    pointer-events: none;
}

.banner-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    min-height: 340px;
}

/* 用 .page-banner 提高特异性，避免继承首页 .banner-content 的 width:50% */
.page-banner .banner-content {
    width: 100%;
    max-width: 540px;
}

.banner-title {
    font-size: 38px;
    font-weight: 700;
    color: #222;
    line-height: 1.25;
    margin-bottom: 18px;
}

.banner-title .brand {
    color: #0164ff;
    margin-right: 8px;
}

.banner-subtitle {
    font-size: 18px;
    color: #555;
    margin-bottom: 42px;
}

.banner-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.feature-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #0164ff;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.feature-icon svg {
    width: 26px;
    height: 26px;
    fill: currentColor;
}

.feature-info h2 {
    font-size: 18px;
    font-weight: 600;
    color: #222;
    margin-bottom: 6px;
}

.feature-info p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

@media (max-width: 1024px) {
    .page-banner {
        min-height: 460px;
        padding: 70px 0;
    }

    .banner-title {
        font-size: 32px;
    }

    .page-banner .banner-content {
        max-width: 460px;
    }
}

@media (max-width: 768px) {
    .page-banner {
        min-height: auto;
        padding: 52px 0 64px;
        background-position: center bottom;
    }

    .page-banner::before {
        background: linear-gradient(180deg,
            rgba(238, 247, 255, 0.98) 0%,
            rgba(238, 247, 255, 0.92) 55%,
            rgba(238, 247, 255, 0.75) 80%,
            rgba(238, 247, 255, 0.4) 100%);
    }

    .banner-inner {
        min-height: auto;
        justify-content: center;
        text-align: center;
    }

    .page-banner .banner-content {
        max-width: 100%;
    }

    .banner-title {
        font-size: 26px;
        margin-bottom: 14px;
    }

    .banner-subtitle {
        font-size: 15px;
        margin-bottom: 32px;
    }

    .feature-item {
        align-items: center;
        text-align: left;
    }
}

@media (max-width: 480px) {
    .banner-title {
        font-size: 22px;
    }

    .feature-icon {
        width: 44px;
        height: 44px;
    }

    .feature-icon svg {
        width: 22px;
        height: 22px;
    }

    .feature-info h2 {
        font-size: 16px;
    }

    .feature-info p {
        font-size: 13px;
    }
}

/* ==================== 灵活的线上学习方式 ==================== */
.learning-methods {
    padding: 80px 0;
    background: #fff;
}

.methods-inner .section-head {
    margin-bottom: 44px;
}

.methods-grid {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.method-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 18px;
    background: #f8fbff;
    border: 1px solid #eef4fc;
    border-radius: 8px;
    font-size: 18px;
    color: #000;
    letter-spacing: 1px;
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.method-item:hover {
    transform: translateY(-4px);
    border-color: #cfe5ff;
    box-shadow: 0 8px 20px rgba(1, 100, 255, 0.08);
}

.method-item img {
    width: 36px;
    height: 36px;
    display: block;
    flex-shrink: 0;
}

.method-item span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.methods-notice {
    position: relative;
    margin-top: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}


.methods-notice img {
    max-width: 100%;
}

@media (max-width: 1200px) {
    .methods-grid {
        gap: 16px;
    }

    .method-item {
        padding: 14px 12px;
        font-size: 14px;
    }

    .method-item img {
        width: 32px;
        height: 32px;
    }
}

@media (max-width: 1024px) {
    .learning-methods {
        padding: 64px 0;
    }

    .methods-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .methods-notice {
        padding: 0 24px;
    }

    .methods-notice img {
        height: auto;
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .learning-methods {
        padding: 48px 0;
    }

    .methods-inner .section-head {
        margin-bottom: 32px;
    }

    .methods-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }

    .method-item {
        padding: 14px;
    }

    .methods-notice {
        margin-top: 36px;
        padding: 0;
        text-align: center;
    }

    .methods-notice img {
        transform: none;
        height: auto;
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .methods-grid {
        grid-template-columns: 1fr;
    }

    .method-item span {
        white-space: normal;
    }
}