/* ==========================================================================
   竹清考编  - 全站样式
   ========================================================================== */

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif; color: #333; background: #f7f8fa; line-height: 1.6; font-size: 14px; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; }

:root {
    --zq-primary: #1a8b5a;
    --zq-primary-dark: #0e6e44;
    --zq-primary-light: #e6f5ec;
    --zq-accent: #d4a849;
    --zq-text: #2c3e3a;
    --zq-text-light: #6c7a76;
    --zq-bg: #f7f8fa;
    --zq-border: #e6e9ec;
    --zq-danger: #e74c3c;
    --zq-warning: #f39c12;
    --zq-shadow: 0 2px 12px rgba(0,0,0,.06);
    --zq-shadow-hover: 0 6px 24px rgba(26,139,90,.15);
    --zq-radius: 8px;
}

.container { width: 1200px; max-width: 96%; margin: 0 auto; }

/* ============================ 顶部 ============================ */
.top-bar { background: #2c3e3a; color: #ddd; font-size: 12px; padding: 8px 0; }
.top-bar a { color: #ddd; }
.top-bar a:hover { color: #fff; }
.top-bar .container { display: flex; justify-content: space-between; }
.top-bar .info span { margin-right: 18px; }

.header { background: #fff; box-shadow: var(--zq-shadow); position: sticky; top: 0; z-index: 999; }
.header .container { display: flex; align-items: center; height: 88px; }
.header .logo { display: flex; align-items: center; }
.header .logo img { height: 60px; }
.header .nav { margin-left: 60px; flex: 1; }
.header .nav ul { display: flex; }
.header .nav li { position: relative; }
.header .nav li a {
    display: block;
    padding: 0 22px;
    line-height: 88px;
    font-size: 15px;
    font-weight: 500;
    color: var(--zq-text);
    transition: all .2s;
}
.header .nav li a:hover,
.header .nav li.active a { color: var(--zq-primary); }
.header .nav li a::after {
    content: '';
    position: absolute;
    bottom: 22px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--zq-primary);
    transition: width .25s;
}
.header .nav li.active a::after,
.header .nav li a:hover::after { width: 60%; }
.header .hotline {
    text-align: right;
    line-height: 1.4;
}
.header .hotline .label { font-size: 12px; color: var(--zq-text-light); }
.header .hotline .num {
    color: var(--zq-primary);
    font-size: 22px;
    font-weight: 700;
}

/* ============================ Banner ============================ */
.banner {
    position: relative;
    height: 540px;
    overflow: hidden;
    background: linear-gradient(135deg, #1a8b5a 0%, #2c8b4f 50%, #4caf50 100%);
}
.banner-slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    opacity: 0;
    transition: opacity 1s;
}
.banner-slide.active { opacity: 1; }
.banner-slide::before {
    content: '';
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: .35;
}
.banner-slide .container { position: relative; z-index: 2; color: #fff; }
.banner-slide h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 18px;
    text-shadow: 0 2px 10px rgba(0,0,0,.3);
}
.banner-slide p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: .95;
    max-width: 560px;
}
.banner-cta {
    display: inline-block;
    padding: 14px 36px;
    background: var(--zq-accent);
    color: #fff;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(212,168,73,.4);
    transition: all .25s;
}
.banner-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,168,73,.5); color: #fff; }
.banner-dots { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; z-index: 5; }
.banner-dots span {
    width: 32px; height: 4px;
    background: rgba(255,255,255,.5);
    cursor: pointer;
    border-radius: 2px;
    transition: all .3s;
}
.banner-dots span.active { background: #fff; width: 48px; }

/* ============================ Section ============================ */
.section { padding: 70px 0; background: #fff; }
.section.alt { background: var(--zq-bg); }
.section-title { text-align: center; margin-bottom: 50px; }
.section-title .small {
    display: inline-block;
    font-size: 14px;
    color: var(--zq-primary);
    letter-spacing: 4px;
    margin-bottom: 8px;
    text-transform: uppercase;
    font-weight: 600;
}
.section-title h2 {
    font-size: 34px;
    color: var(--zq-text);
    font-weight: 700;
    margin-bottom: 14px;
}
.section-title .desc {
    color: var(--zq-text-light);
    max-width: 600px;
    margin: 0 auto;
}
.section-title .line {
    width: 50px; height: 3px;
    background: var(--zq-primary);
    margin: 18px auto 0;
    border-radius: 2px;
}

/* ============================ 服务优势 ============================ */
.advantages { background: linear-gradient(180deg, #fff 0%, #f7f8fa 100%); }
.adv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.adv-card {
    background: #fff;
    padding: 36px 28px;
    border-radius: var(--zq-radius);
    text-align: center;
    box-shadow: var(--zq-shadow);
    transition: all .3s;
    border: 1px solid transparent;
}
.adv-card:hover { transform: translateY(-6px); box-shadow: var(--zq-shadow-hover); border-color: var(--zq-primary-light); }
.adv-card .icon {
    width: 72px; height: 72px;
    background: var(--zq-primary-light);
    color: var(--zq-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
}
.adv-card h3 { font-size: 18px; color: var(--zq-text); margin-bottom: 12px; font-weight: 700; }
.adv-card p { color: var(--zq-text-light); font-size: 14px; line-height: 1.7; }

/* ============================ 课程列表 ============================ */
.course-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}
.course-card {
    background: #fff;
    border-radius: var(--zq-radius);
    overflow: hidden;
    box-shadow: var(--zq-shadow);
    transition: all .3s;
    position: relative;
}
.course-card:hover { transform: translateY(-6px); box-shadow: var(--zq-shadow-hover); }
.course-card .cover {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: #f0f0f0;
}
.course-card .cover img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform .5s;
}
.course-card:hover .cover img { transform: scale(1.05); }
.course-card .hot {
    position: absolute;
    top: 12px; left: 12px;
    background: var(--zq-danger);
    color: #fff;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}
.course-card .body { padding: 22px; }
.course-card .cat {
    font-size: 12px;
    color: var(--zq-primary);
    margin-bottom: 8px;
    font-weight: 600;
}
.course-card h3 { font-size: 18px; color: var(--zq-text); margin-bottom: 8px; font-weight: 700; line-height: 1.4; }
.course-card .sub { color: var(--zq-text-light); font-size: 13px; margin-bottom: 16px; min-height: 38px; }
.course-card .meta { display: flex; justify-content: space-between; align-items: center; padding-top: 14px; border-top: 1px solid var(--zq-border); }
.course-card .price {
    color: var(--zq-danger);
    font-size: 22px;
    font-weight: 700;
}
.course-card .price small { font-size: 13px; font-weight: 400; }
.course-card .btn {
    padding: 8px 18px;
    background: var(--zq-primary);
    color: #fff;
    border-radius: 4px;
    font-size: 13px;
    transition: background .2s;
}
.course-card .btn:hover { background: var(--zq-primary-dark); color: #fff; }

/* ============================ 师资团队 ============================ */
.teacher-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}
.teacher-card {
    background: #fff;
    border-radius: var(--zq-radius);
    overflow: visible;
    box-shadow: var(--zq-shadow);
    transition: all .3s;
    text-align: center;
}
.teacher-card:hover { transform: translateY(-4px); box-shadow: var(--zq-shadow-hover); }
.teacher-card .avatar {
    width: 100%;
    aspect-ratio: 1 / 1;
    background: linear-gradient(135deg, var(--zq-primary-light), #f7f8fa);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    color: var(--zq-primary);
    border-radius: var(--zq-radius) var(--zq-radius) 0 0;
    overflow: hidden;
}
.teacher-card .body { padding: 18px 18px 22px; }
.teacher-card h3 { font-size: 17px; font-weight: 700; color: var(--zq-text); margin-bottom: 4px; }
.teacher-card .title { color: var(--zq-primary); font-size: 13px; margin-bottom: 10px; }
.teacher-card .intro { color: var(--zq-text-light); font-size: 12px; line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; text-overflow: ellipsis; word-break: break-all; }

/* ============================ 数据统计 ============================ */
.stats {
    background: linear-gradient(135deg, var(--zq-primary) 0%, var(--zq-primary-dark) 100%);
    color: #fff;
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}
.stats::before {
    content: '竹';
    position: absolute;
    right: -40px;
    bottom: -60px;
    font-size: 240px;
    font-weight: 800;
    color: rgba(255,255,255,.06);
    font-family: serif;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
    position: relative;
    z-index: 2;
}
.stats-grid .num {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 8px;
    font-family: Georgia, serif;
}
.stats-grid .label { font-size: 14px; opacity: .9; }

/* ============================ 新闻 ============================ */
.news-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}
.news-list { display: flex; flex-direction: column; gap: 18px; }
.news-item {
    background: #fff;
    padding: 20px 24px;
    border-radius: var(--zq-radius);
    box-shadow: var(--zq-shadow);
    transition: all .25s;
    display: flex;
    gap: 20px;
}
.news-item:hover { transform: translateX(4px); box-shadow: var(--zq-shadow-hover); }
.news-item .date {
    flex-shrink: 0;
    width: 72px;
    text-align: center;
    background: var(--zq-primary-light);
    border-radius: 6px;
    padding: 12px 8px;
    color: var(--zq-primary);
}
.news-item .date .day { font-size: 24px; font-weight: 700; line-height: 1.1; }
.news-item .date .ym { font-size: 12px; color: var(--zq-text-light); margin-top: 4px; }
.news-item .body { flex: 1; }
.news-item h3 { font-size: 16px; font-weight: 700; color: var(--zq-text); margin-bottom: 8px; line-height: 1.5; }
.news-item h3 a:hover { color: var(--zq-primary); }
.news-item .desc { color: var(--zq-text-light); font-size: 13px; line-height: 1.7; }
.news-side .side-card {
    background: #fff;
    border-radius: var(--zq-radius);
    overflow: hidden;
    box-shadow: var(--zq-shadow);
    margin-bottom: 18px;
}
.news-side .side-title {
    background: var(--zq-primary);
    color: #fff;
    padding: 14px 20px;
    font-size: 16px;
    font-weight: 700;
}
.news-side ul li {
    padding: 12px 20px;
    border-bottom: 1px solid var(--zq-border);
    font-size: 14px;
    display: flex;
    gap: 10px;
    align-items: center;
}
.news-side ul li:last-child { border-bottom: none; }
.news-side ul li .idx {
    width: 22px; height: 22px;
    background: var(--zq-primary-light);
    color: var(--zq-primary);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}
.news-side ul li:nth-child(-n+3) .idx { background: var(--zq-danger); color: #fff; }
.news-side ul li a:hover { color: var(--zq-primary); }

/* ============================ 底部 ============================ */
.footer {
    background: #1f2a28;
    color: #aab1af;
    padding-top: 50px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid #2c3734;
}
.footer h5 {
    color: #fff;
    font-size: 16px;
    margin-bottom: 20px;
    font-weight: 600;
}
.footer p, .footer li { font-size: 13px; line-height: 1.9; }
.footer li a:hover { color: #fff; }
.footer .qr {
    width: 110px; height: 110px;
    background: #fff;
    padding: 8px;
    border-radius: 6px;
}
.footer-bottom {
    text-align: center;
    padding: 24px 0;
    font-size: 13px;
    background: #182220;
    margin-top: 0;
}
.footer-bottom a { color: #aab1af; }
.footer-bottom a:hover { color: #fff; }

/* ============================ 内页 ============================ */
.breadcrumb { padding: 16px 0; background: #fff; border-bottom: 1px solid var(--zq-border); font-size: 13px; color: var(--zq-text-light); }
.breadcrumb .container { display: flex; align-items: center; gap: 8px; }
.breadcrumb a:hover { color: var(--zq-primary); }
.breadcrumb .sep { color: #ccc; }

.page-banner {
    height: 240px;
    background: linear-gradient(135deg, var(--zq-primary), var(--zq-primary-dark));
    color: #fff;
    display: flex;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/static/images/banner-pattern.svg') center/cover;
    opacity: .12;
}
.page-banner .container { position: relative; z-index: 2; }
.page-banner h1 { font-size: 38px; font-weight: 700; margin-bottom: 10px; }
.page-banner p { font-size: 16px; opacity: .9; }

/* 分页 */
.pager { display: flex; justify-content: center; gap: 6px; padding: 30px 0; }
.pager a, .pager span {
    padding: 8px 14px;
    background: #fff;
    border: 1px solid var(--zq-border);
    border-radius: 4px;
    font-size: 13px;
    color: var(--zq-text);
    transition: all .2s;
}
.pager a:hover, .pager .active { background: var(--zq-primary); color: #fff; border-color: var(--zq-primary); }
.pager .disabled { color: #ccc; cursor: not-allowed; }

/* 列表页通用 */
.filter-bar { background: #fff; padding: 18px 24px; border-radius: var(--zq-radius); box-shadow: var(--zq-shadow); margin-bottom: 30px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.filter-bar a { padding: 6px 18px; border-radius: 999px; font-size: 13px; transition: all .2s; color: var(--zq-text-light); }
.filter-bar a:hover, .filter-bar a.active { background: var(--zq-primary); color: #fff; }

/* ============================ 详情页 ============================ */
.detail-wrap {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 30px;
    padding: 40px 0 60px;
}
.detail-main {
    background: #fff;
    border-radius: var(--zq-radius);
    padding: 36px;
    box-shadow: var(--zq-shadow);
}
.detail-main h1 { font-size: 28px; font-weight: 700; color: var(--zq-text); line-height: 1.4; margin-bottom: 12px; }
.detail-main .meta {
    color: var(--zq-text-light);
    font-size: 13px;
    padding: 16px 0;
    border-bottom: 1px solid var(--zq-border);
    margin-bottom: 24px;
}
.detail-main .meta span { margin-right: 20px; }
.detail-main .cover { margin: -36px -36px 24px; }
.detail-main .content { font-size: 15px; line-height: 1.9; color: #444; }
.detail-main .content p { margin-bottom: 16px; }
.detail-main .content h3 { margin: 24px 0 12px; font-size: 18px; color: var(--zq-text); }
.detail-main .content img { max-width: 100%; margin: 12px auto; border-radius: 6px; }
.detail-main .content ul li { list-style: disc; margin-left: 24px; padding: 4px 0; }

.detail-side {
    align-self: start;
    position: sticky;
    top: 110px;
}
.side-block {
    background: #fff;
    border-radius: var(--zq-radius);
    padding: 24px;
    box-shadow: var(--zq-shadow);
    margin-bottom: 18px;
}
.side-block h4 {
    font-size: 16px;
    color: var(--zq-text);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--zq-primary);
}
.side-block .course-item {
    padding: 14px 0;
    border-bottom: 1px dashed var(--zq-border);
    display: flex;
    gap: 12px;
    align-items: center;
}
.side-block .course-item:last-child { border-bottom: none; }
.side-block .course-item img { width: 60px; height: 60px; object-fit: cover; border-radius: 4px; }
.side-block .course-item .body { flex: 1; min-width: 0; }
.side-block .course-item .ttl { font-size: 14px; font-weight: 600; color: var(--zq-text); margin-bottom: 4px; }
.side-block .course-item .pr { color: var(--zq-danger); font-size: 13px; font-weight: 700; }

.enroll-btn, .consult-btn {
    display: block;
    width: 100%;
    padding: 12px 0;
    text-align: center;
    background: var(--zq-primary);
    color: #fff;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 600;
    margin-top: 8px;
    transition: all .2s;
}
.enroll-btn:hover, .consult-btn:hover { background: var(--zq-primary-dark); color: #fff; }
.consult-btn { background: var(--zq-accent); }
.consult-btn:hover { background: #c89940; }

/* 课程详情封面 */
.course-hero {
    background: linear-gradient(135deg, #f7f8fa, #fff);
    padding: 40px 0;
    border-bottom: 1px solid var(--zq-border);
}
.course-hero .container { display: grid; grid-template-columns: 1fr 360px; gap: 40px; align-items: center; }
.course-hero h1 { font-size: 28px; color: var(--zq-text); margin-bottom: 14px; line-height: 1.4; }
.course-hero .sub { color: var(--zq-text-light); font-size: 15px; margin-bottom: 20px; }
.course-hero .price { font-size: 32px; color: var(--zq-danger); font-weight: 800; margin-bottom: 20px; }
.course-hero .price small { font-size: 14px; color: var(--zq-text-light); text-decoration: line-through; font-weight: 400; margin-left: 12px; }
.course-hero .feature-list { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 24px; }
.course-hero .feature-list span {
    background: var(--zq-primary-light);
    color: var(--zq-primary);
    padding: 6px 14px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
}
.course-hero .cover-img { aspect-ratio: 4 / 3; background: #f0f0f0; border-radius: 8px; overflow: hidden; box-shadow: 0 6px 24px rgba(0,0,0,.1); }
.course-hero .cover-img img { width: 100%; height: 100%; object-fit: cover; }

/* 表单 */
.form-block {
    background: #fff;
    padding: 30px;
    border-radius: var(--zq-radius);
    box-shadow: var(--zq-shadow);
}
.form-block h3 { font-size: 22px; color: var(--zq-text); margin-bottom: 24px; text-align: center; }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; color: var(--zq-text); font-size: 14px; font-weight: 600; }
.form-group label .req { color: var(--zq-danger); }
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--zq-border);
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color .2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--zq-primary);
    box-shadow: 0 0 0 3px var(--zq-primary-light);
}
.form-group textarea { resize: vertical; min-height: 90px; }
.btn-submit {
    display: inline-block;
    padding: 12px 36px;
    background: var(--zq-primary);
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
}
.btn-submit:hover { background: var(--zq-primary-dark); }

/* 浮动咨询 */
.floating {
    position: fixed;
    right: 24px;
    bottom: 80px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.floating a {
    width: 56px; height: 56px;
    background: var(--zq-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    font-size: 11px;
    box-shadow: 0 4px 16px rgba(0,0,0,.15);
    transition: all .25s;
}
.floating a:hover { transform: scale(1.1); background: var(--zq-primary-dark); color: #fff; }
.floating a .ic { font-size: 22px; margin-bottom: 2px; }

/* 成功页 */
.success-box {
    text-align: center;
    padding: 60px 30px;
    background: #fff;
    border-radius: var(--zq-radius);
    box-shadow: var(--zq-shadow);
}
.success-box .check {
    width: 80px; height: 80px;
    background: var(--zq-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    margin: 0 auto 24px;
}
.success-box h2 { color: var(--zq-primary); font-size: 24px; margin-bottom: 14px; }
.success-box p { color: var(--zq-text-light); margin-bottom: 20px; }
.success-box .btns { display: flex; gap: 16px; justify-content: center; }
.success-box .btns a {
    padding: 10px 28px;
    border-radius: 4px;
    font-size: 14px;
}
.btn-primary { background: var(--zq-primary); color: #fff; }
.btn-default { background: var(--zq-bg); color: var(--zq-text); }

/* 关于我们 */
.about-hero { padding: 50px 0; background: linear-gradient(135deg, var(--zq-primary-light), #fff); }
.about-hero .container { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.about-hero h1 { font-size: 32px; color: var(--zq-text); margin-bottom: 16px; line-height: 1.4; }
.about-hero .lead { color: var(--zq-text-light); font-size: 15px; line-height: 1.9; margin-bottom: 20px; }
.about-hero .badge {
    display: inline-block;
    background: var(--zq-primary);
    color: #fff;
    padding: 6px 18px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    margin-right: 8px;
}
.about-section { padding: 50px 0; background: #fff; }
.about-section.alt { background: var(--zq-bg); }
.about-section h2 {
    font-size: 26px;
    color: var(--zq-text);
    margin-bottom: 20px;
    padding-left: 14px;
    border-left: 4px solid var(--zq-primary);
}
.about-section .content { font-size: 15px; line-height: 1.9; color: #555; }
.about-section .content p { margin-bottom: 14px; }
.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.value-card {
    background: #fff;
    padding: 24px 20px;
    border-radius: var(--zq-radius);
    text-align: center;
    box-shadow: var(--zq-shadow);
}
.value-card .num { font-size: 28px; color: var(--zq-primary); font-weight: 800; margin-bottom: 8px; }
.value-card .lb { color: var(--zq-text); font-weight: 600; margin-bottom: 6px; }

/* 师资详情 */
.teacher-hero { padding: 50px 0; background: linear-gradient(135deg, var(--zq-primary-light), #fff); }
.teacher-hero .container { display: grid; grid-template-columns: 220px 1fr; gap: 40px; align-items: center; }
.teacher-hero .avatar-lg {
    width: 220px; height: 220px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--zq-primary), var(--zq-primary-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 100px;
    box-shadow: 0 8px 24px rgba(0,0,0,.15);
}
.teacher-hero h1 { font-size: 32px; margin-bottom: 6px; }
.teacher-hero .title { color: var(--zq-primary); font-size: 16px; margin-bottom: 14px; font-weight: 600; }
.teacher-hero .desc { color: var(--zq-text-light); line-height: 1.9; }
.teacher-detail-section { padding: 40px 0; background: #fff; }
.teacher-detail-section h3 {
    font-size: 22px;
    color: var(--zq-text);
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--zq-primary-light);
}
.teacher-detail-section p { color: #555; line-height: 1.9; margin-bottom: 10px; }
.teacher-detail-section ul li { padding: 6px 0; padding-left: 22px; position: relative; color: #555; line-height: 1.7; }
.teacher-detail-section ul li::before { content: '✓'; position: absolute; left: 0; color: var(--zq-primary); font-weight: 700; }

/* 联系我们 */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 40px 0;
}
.contact-info-card {
    background: linear-gradient(135deg, var(--zq-primary), var(--zq-primary-dark));
    color: #fff;
    padding: 36px;
    border-radius: var(--zq-radius);
    box-shadow: var(--zq-shadow);
}
.contact-info-card h3 { font-size: 24px; margin-bottom: 20px; }
.contact-info-card .row { padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.15); display: flex; align-items: center; gap: 12px; }
.contact-info-card .row:last-child { border: none; }
.contact-info-card .row .label { font-size: 14px; opacity: .85; }
.contact-info-card .row .val { font-size: 16px; font-weight: 600; }
.contact-form-card {
    background: #fff;
    padding: 36px;
    border-radius: var(--zq-radius);
    box-shadow: var(--zq-shadow);
}
.contact-form-card h3 { font-size: 22px; color: var(--zq-text); margin-bottom: 24px; text-align: center; }

/* 响应式 */
@media (max-width: 1024px) {
    .course-grid, .teacher-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: 1fr; }
    .detail-wrap { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .adv-grid, .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .header .nav { display: none; }
    .course-hero .container { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .course-grid, .teacher-grid, .adv-grid, .stats-grid { grid-template-columns: 1fr; }
    .banner { height: 380px; }
    .banner-slide h2 { font-size: 28px; }
    .header { height: auto; }
    .header .container { flex-direction: column; height: auto; padding: 12px 0; }
    .header .nav ul { flex-wrap: wrap; }
    .form-row { grid-template-columns: 1fr; }
}

/* ==========================================================================
   FAQ 常见问题
   ========================================================================== */
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item {
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 12px;
    overflow: hidden;
    transition: box-shadow .3s, border-color .3s;
}
.faq-item[open] { border-color: var(--zq-primary); box-shadow: 0 4px 16px rgba(26,139,90,.1); }
.faq-item summary {
    padding: 18px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--zq-text);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: color .2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '+';
    font-size: 22px;
    color: var(--zq-primary);
    font-weight: 300;
    transition: transform .2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { color: var(--zq-primary); }
.faq-answer {
    padding: 0 24px 18px;
    font-size: 14px;
    line-height: 1.8;
    color: var(--zq-text-light);
}