/* ========= 城市页：服务城市 ========= */
:root {
    --ct-orange: #ff5a1f;
}

/* 整页底色（频道页与城市详情页共用本文件） */
body {
    background-color: #f6f7f9;
}

.city-section {
    padding: clamp(28px, 3vw, 46px) var(--gutter) clamp(36px, 4vw, 60px);
}

.city-card {
    max-width: var(--container);
    margin: 0 auto;
    background: #fff;
    border-radius: 10px;
    padding: clamp(24px, 3vw, 42px) clamp(22px, 3.4vw, 54px);
}

.city-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: clamp(8px, 1.2vw, 14px) clamp(12px, 2.2vw, 30px);
}

.city-list a {
    display: inline-block;
    padding: 8px 24px;
    border-radius: 10px;
    font-size: clamp(14px, 1.1vw, 20px);
    color: #454b57;
    transition: color .25s, background-color .25s, box-shadow .25s;
}

.city-list a:hover {
    color: var(--ct-orange);
}

.city-list a.active {
    background: #ed5421;
    color: #fff;
}

/* ========= 北京智培训盟报考服务 ========= */
:root {
    --ct-blue: #1e6ff2;
}

.city-service {
    padding: 0 var(--gutter) clamp(36px, 4vw, 60px);
}

.city-service-inner {
    max-width: var(--container);
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(16px, 2vw, 28px);
    align-items: stretch;
}

.city-service-media {
    margin: 0;
    border-radius: 12px;
    overflow: hidden;
}

.city-service-media img {
    width: 100%;
    height: 100%;
    min-height: 100%;
    object-fit: cover;
    display: block;
}

.city-service-body {
    background: #fff;
    border-radius: 12px;
    padding: clamp(26px, 3vw, 48px) clamp(22px, 3.4vw, 60px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
}

.city-service-title {
    font-weight: 700;
    color: #111;
    line-height: 1.4;
    margin-bottom: clamp(14px, 1.6vw, 22px);
    font-size: clamp(20px, 2vw, 30px);
    font-weight: 500;
    color: #000000;
    margin-bottom: 18px;
    font-family: 'SourceHanSansSC Medium', "Microsoft Yahei", sans-serif;
}

.city-service-desc {
    font-size: clamp(14px, 1.1vw, 16px);
    line-height: 1.9;
    color: #555;
    margin-bottom: clamp(12px, 1.4vw, 18px);
}

.city-service-auth {
    font-size: clamp(13px, 1vw, 15px);
    line-height: 1.7;
    color: #006aed;
    margin-bottom: clamp(22px, 2.6vw, 38px);
}

.city-service-btn {
    display: inline-block;
    background: #006aed;
    color: #fff;
    font-size: clamp(14px, 1.1vw, 16px);
    padding: 11px 32px;
    border-radius: 8px;
    letter-spacing: 1px;
    transition: background-color .25s, box-shadow .25s;
}

.city-service-btn:hover {
    background: #1457c4;
    box-shadow: 0 6px 10px rgba(30, 111, 242, .3);
    color: #fff;
}

/* 报考服务响应式 */
@media (max-width: 900px) {
    .city-service {
        padding-bottom: 28px;
    }

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

    .city-service-media img {
        aspect-ratio: 16 / 9;
        height: auto;
    }

    .city-service-body {
        padding: 22px 18px;
    }

    .city-service-auth {
        margin-bottom: 20px;
    }
}

/* ========= 报考指南 ========= */
.city-guide {
    padding: 0 var(--gutter) clamp(36px, 4vw, 60px);
}

.city-guide-inner {
    max-width: var(--container);
    margin: 0 auto;
}

.city-guide-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: clamp(14px, 1.8vw, 24px);
}

.city-guide-card {
    background: #fff;
    border-radius: 28px;
    box-shadow: 0 4px 18px rgba(31, 41, 55, .05);
    padding: clamp(22px, 2.4vw, 34px) clamp(18px, 2vw, 28px);
    transition: transform .25s, box-shadow .25s;
}

.city-guide-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 26px rgba(31, 41, 55, .1);
}

.city-guide-head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: clamp(14px, 1.6vw, 22px);
}

.city-guide-head img {
    width: clamp(30px, 2.4vw, 36px);
    height: auto;
    flex: 0 0 auto;
}

.city-guide-head h3 {
    font-size: clamp(15px, 1.25vw, 22px);
    font-weight: 500;
    color: #000;
}

.city-guide-card p {
    font-size: clamp(13px, 1vw, 16px);
    line-height: 1.85;
    color: #666;
}

/* 报考指南响应式 */
@media (max-width: 1024px) {
    .city-guide-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .city-guide {
        padding-bottom: 28px;
    }

    .city-guide-list {
        grid-template-columns: 1fr;
    }
}

/* ========= 一站式学习平台 ========= */
.city-cta {
    padding: 0 var(--gutter) clamp(36px, 4vw, 60px);
}

.city-cta-inner {
    max-width: var(--container);
    margin: 0 auto;
    min-height: clamp(150px, 16vw, 230px);
    border-radius: 14px;
    background: #e8f0fe url(../images/city/mid_bg.jpg) center right / cover no-repeat;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: clamp(20px, 2.6vw, 40px) clamp(22px, 4vw, 64px);
}

.city-cta-title {
    font-size: clamp(18px, 2vw, 30px);
    font-weight: 700;
    color: #16233a;
    line-height: 1.4;
    margin-bottom: clamp(10px, 1.2vw, 16px);
}

.city-cta-contact {
    font-size: clamp(13px, 1.1vw, 16px);
    color: #444;
    margin-bottom: clamp(16px, 2vw, 28px);
}

.city-cta-contact a {
    color: #444;
    margin-left: 8px;
}

.city-cta-btn {
    display: inline-block;
    background: #fff;
    color: #333;
    font-size: clamp(13px, 1vw, 16px);
    padding: 9px 30px;
    border-radius: 999px;
    /* box-shadow: 0 4px 12px rgba(31, 58, 118, .12); */
    transition: color .25s, box-shadow .25s;
}

.city-cta-btn:hover {
    color: var(--ct-blue);
    box-shadow: 0 6px 16px rgba(31, 58, 118, .2);
}

/* 一站式学习平台响应式 */
@media (max-width: 768px) {
    .city-cta {
        padding-bottom: 28px;
    }

    .city-cta-inner {
        background-position: right -80px center;
        min-height: 150px;
        padding: 20px 16px;
    }
}

/* ========= 核心课程 ========= */
.city-course {
    padding: 0 var(--gutter) clamp(36px, 4vw, 60px);
}

.city-course-inner {
    max-width: var(--container);
    margin: 0 auto;
}

.city-course-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(14px, 1.8vw, 24px);
}

.city-course-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 18px rgba(31, 41, 55, .05);
    transition: transform .25s, box-shadow .25s;
}

.city-course-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 26px rgba(31, 41, 55, .1);
}

.city-course-media {
    margin: 0 0 clamp(8px, 1vw, 12px);
    border-radius: 8px;
    overflow: hidden;
    background: #f2f4f7;
}

.city-course-media img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    display: block;
    transition: transform .35s;
}

.city-course-card:hover .city-course-media img {
    transform: scale(1.04);
}

.city-course-body{
        padding: 6px clamp(6px, .8vw, 15px) 8px;
}

.city-course-card h3 {
    font-size: clamp(14px, 1.1vw, 22px);
    font-weight: 500;
    color: #000;
    line-height: 1.8;
    padding: 0 clamp(4px, .6vw, 8px);
    margin-bottom: 5px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.city-course-card p {
    font-size: clamp(13px, .95vw, 16px);
    line-height: 1.75;
    color: #6b7280;
    padding: 0 clamp(4px, .6vw, 8px) clamp(4px, .6vw, 8px);
}



/* 核心课程响应式 */
@media (max-width: 1024px) {
    .city-course-list {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .city-course {
        padding-bottom: 28px;
    }

    .city-course-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

/* 服务城市响应式 */
@media (max-width: 768px) {
    .city-section {
        padding-top: 20px;
        padding-bottom: 28px;
    }

    .city-card {
        border-radius: 10px;
        padding: 20px 14px;
    }

    .city-list {
        gap: 8px 6px;
    }

    .city-list a {
        padding: 6px 14px;
    }
}


/* ========= 常见问答 ========= */
.city-faq {
    padding: 0 var(--gutter) clamp(36px, 4vw, 60px);
}

.city-faq-inner {
    max-width: var(--container);
    margin: 0 auto;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 4px 18px rgba(31, 41, 55, .05);
    padding: clamp(20px, 2.6vw, 40px);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(16px, 2vw, 28px);
}

.city-faq-col {
    border: 1px solid #f2e7db;
    border-radius: 10px;
    padding: clamp(10px, 1.4vw, 20px) clamp(12px, 1.6vw, 24px);
}

.city-faq-item {
    border-radius: 8px;
}

.city-faq-item + .city-faq-item {
    border-top: 1px dashed #f2e7db;
}

.city-faq-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: clamp(10px, 1.2vw, 16px) clamp(10px, 1.2vw, 16px);
    cursor: pointer;
    border-radius: 8px;
    list-style: none;
    transition: background-color .25s;
}

.city-faq-summary::-webkit-details-marker {
    display: none;
}

.city-faq-summary:hover {
    background: #fffaf5;
}

.city-faq-summary:focus-visible {
    outline: 2px solid var(--ct-orange);
    outline-offset: 2px;
}

.city-faq-item[open] > .city-faq-summary {
    background: #fffaf5;
}

.city-faq-q {
    display: flex;
    align-items: baseline;
    gap: 8px;
    font-size: clamp(14px, 1.05vw, 18px);
    color: #1f2937;
    line-height: 1.6;
    font-weight: 500;
}

.city-faq-q .no {
    font-weight: 600;
    color: #111;
    flex: 0 0 auto;
}

/* 展开/收起按钮 */
.city-faq-toggle {
    flex: 0 0 auto;
    display: inline-block;
    background: #fdeee0;
    color: var(--ct-orange);
    font-size: clamp(12px, .95vw, 14px);
    line-height: 1.5;
    padding: 7px 20px;
    border-radius: 999px;
    white-space: nowrap;
    transition: background-color .25s, color .25s;
}

.city-faq-summary:hover .city-faq-toggle {
    background: #ffd9b8;
}

.city-faq-toggle .city-faq-close {
    display: none;
}

.city-faq-item[open] > .city-faq-summary .city-faq-toggle .city-faq-open {
    display: none;
}

.city-faq-item[open] > .city-faq-summary .city-faq-toggle .city-faq-close {
    display: inline;
}

.city-faq-item[open] > .city-faq-summary .city-faq-toggle {
    background: var(--ct-orange);
    color: #fff;
}

/* 答案区 */
.city-faq-a {
    padding: 0 clamp(10px, 1.2vw, 16px) clamp(14px, 1.6vw, 18px);
    animation: cityFaqShow .28s ease both;
}

@keyframes cityFaqShow {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }

    to {
        opacity: 1;
        transform: none;
    }
}

.city-faq-a p {
    font-size: clamp(13px, .98vw, 15px);
    line-height: 1.85;
    color: #4b5563;
}

.city-faq-a p + p {
    margin-top: 8px;
}

.city-faq-a strong {
    color: #1f2937;
    font-weight: 600;
}

.city-faq-a a {
    color: var(--ct-orange);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.city-faq-more {
    color: #6b7280;
}

@media (prefers-reduced-motion: reduce) {
    .city-faq-a {
        animation: none;
    }
}

/* 常见问答响应式 */
@media (max-width: 900px) {
    .city-faq {
        padding-bottom: 28px;
    }

    .city-faq-inner {
        grid-template-columns: 1fr;
        padding: 14px;
    }

    .city-faq-col {
        padding: 6px 14px;
    }

    .city-faq-summary {
        align-items: flex-start;
        gap: 10px;
        padding: 12px 8px;
    }

    .city-faq-toggle {
        padding: 6px 14px;
    }

    .city-faq-a {
        padding: 0 8px 14px;
    }
}
/* ===== 城市详情页新增区块（动态化改造补充） ===== */
.city-card > h2 {
  font-size: 22px;
  line-height: 1.4;
  color: #16233a;
  margin: 0 0 14px;
}

.city-intro {
  font-size: 15px;
  line-height: 1.95;
  color: #556274;
}

.city-intro p {
  margin: 0 0 12px;
}

.city-intro strong {
  color: #16233a;
}

.city-intro ul {
  margin: 12px 0 0;
  padding-left: 20px;
}

.city-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.city-facts li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  background: #f6f7f9;
  border: 1px solid #eceff3;
  border-radius: 10px;
  padding: 12px 14px;
}

.city-facts li span {
  flex: 0 0 88px;
  color: #8b96a5;
  font-size: 14px;
}

.city-facts li strong {
  font-weight: 600;
  color: #16233a;
  font-size: 15px;
}

.city-course-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.city-course-link:hover h3 {
  color: #1b6ec2;
}

@media (max-width: 640px) {
  .city-facts {
    grid-template-columns: minmax(0, 1fr);
  }
}