/* ============================================================
   TEACH AI 首页 V3 样式（严格对齐UI设计稿）
   ============================================================ */

.page-home .cta-section { border-top: 1px solid #e5edf7; }

/* ---- 通用区块标题（带装饰线条） ---- */
.section-heading-v3 {
  text-align: center;
  margin-top: 0;
  margin-bottom: 44px;
}
.section-heading-v3 h2 {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 18px;
  margin: 0 0 10px;
  font-family: AlimamaShuHeiTi, AlimamaShuHeiTi;
  font-weight: bold;
  font-size: 32px;
  color: #333333;
  letter-spacing: -0.01em;
}
.section-heading-v3 h2::before,
.section-heading-v3 h2::after {
  content: "";
  width: 144px;
  height: 26px;
  background:
          linear-gradient( 90deg, rgba(185,211,255,0) 0%, #B9D3FF 100%);
  border-radius: 0px 100px 100px 0px;
  background-blend-mode: multiply;
  box-shadow: 0 12px 0 0 rgba(185,211,255,0.55);
  border-image: linear-gradient(258deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.55)) 1 1;
}
.section-heading-v3 h2::after { transform: scaleX(-1); }
.section-heading-v3 p {
  margin: 0;
  color: #8490a2;
  font-size: 14px;
}

/* ============================================================
   Hero V3 —— CSS渐变背景 + 右侧AI插画
   ============================================================ */
.hero-v3 {
  position: relative;
  min-height: 460px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: url("../../assets/images/banner-bg-new.png") no-repeat right center;
  background-size: cover;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}
.hero-v3::before,
.hero-v3::after {
  display: none;
}
.hero-v3 .hero-grid,
.hero-v3 .hero-aurora {
  display: none;
}
.hero-art-v3 {
  display: none;
}
.hero-inner-v3 {
  position: relative;
  z-index: 1;
}
.hero-copy-v3 {
  max-width: 640px;
  padding: 36px 0;
}
.hero-copy-v3 h1 {
  margin: 0 0 18px;
  color: #1a1a1a;
  font-size: 58px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
  font-family: AlimamaShuHeiTi, AlimamaShuHeiTi, "PingFang SC", "Microsoft YaHei", sans-serif;
}
.hero-copy-v3 h1 em {
  font-style: normal;
  color: #2663EB;
}
.hero-sub-v3 {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 20px;
  padding: 6px 16px;
  color: #2663EB;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.5;
  background: rgba(38, 99, 235, 0.08);
  border-radius: 20px;
}
.hero-sub-v3::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #2663EB;
  flex-shrink: 0;
}
.hero-tags-v3 {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-bottom: 34px;
}
.hero-tags-v3 span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #3a4a62;
  font-size: 14px;
  font-weight: 600;
}
.hero-tags-v3 span img {
  width: 16px;
  height: 16px;
  object-fit: contain;
}
.hero-actions-v3 .button-primary {
  min-width: 156px;
  min-height: 46px;
  padding: 0 28px;
  font-size: 14px;
  font-weight: 700;
  border-radius: 8px;
}

/* ============================================================
   保薪就业承诺 V3
   ============================================================ */
.guarantee-v3-section {
  padding: 80px 0 80px;
  background: #fff;
}
.guarantee-panels {
  display: flex;
  gap: 16px;
  height: 286px;
}
.guarantee-panel {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  border: 1px solid transparent;
  border-radius: 14px;
  overflow: hidden;
  cursor: pointer;
  background: linear-gradient(180deg, #3a8ff7 0%, #2d7df5 50%, #256ef0 100%);
  box-shadow: 0 8px 24px rgba(33, 105, 228, 0.12);
  transition:
    flex-grow 0.32s cubic-bezier(0.4, 0, 0.2, 1),
    flex-basis 0.32s cubic-bezier(0.4, 0, 0.2, 1),
    background 0.32s ease,
    border-color 0.32s ease,
    box-shadow 0.3s ease;
}
.guarantee-panel:hover {
  box-shadow: 0 14px 34px rgba(33, 105, 228, 0.2);
}
.guarantee-panel.is-active {
  flex-grow: 3.4;
  background: linear-gradient(135deg, #f8fbff 0%, #ffffff 100%);
  border-color: #e6eef9;
  box-shadow: 0 18px 44px rgba(33, 105, 228, 0.14);
}

/* ---- 收起态内容 ---- */
.gp-collapsed {
  position: absolute;
  inset: 0;
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  color: #fff;
  transition: opacity 0.18s ease;
}
.guarantee-panel.is-active .gp-collapsed {
  opacity: 0;
  pointer-events: none;
}
.gp-collapsed h4 {
  margin: 0 0 10px;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.45;
}
.gp-collapsed p {
  margin: 0;
  font-size: 11px;
  line-height: 1.7;
  opacity: 0.88;
  min-height: 0;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
  line-clamp: 4;
  overflow: hidden;
}
.gp-collapsed-icon {
  margin-top: auto;
  width: 104px;
  height: auto;
  object-fit: contain;
  align-self: center;
  opacity: 0.5;
}

/* ---- 展开态内容 ---- */
.gp-expanded {
  position: absolute;
  inset: 0;
  padding: 30px 32px;
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease 0.08s;
}
.guarantee-panel.is-active .gp-expanded {
  opacity: 1;
  pointer-events: auto;
}
.gp-expanded h3 {
  margin: 0 0 16px;
  max-width: 62%;
  color: #1a2740;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.4;
}
.gp-expanded-text {
  margin: 0;
  max-width: 60%;
  color: #5a6a82;
  font-size: 12px;
  line-height: 1.8;
}
.gp-expanded .button-outline-v3 {
  margin-top: auto;
  align-self: flex-start;
}
.gp-expanded-art {
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  width: 168px;
  height: auto;
  object-fit: contain;
  pointer-events: none;
}
.button-outline-v3 {
  min-width: 124px;
  min-height: 40px;
  padding: 0 24px;
  border: 1px solid #1769ff;
  border-radius: 8px;
  background: #fff;
  color: #1769ff;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
}
.button-outline-v3:hover {
  background: #1769ff;
  color: #fff;
}

/* ============================================================
   精品课程 V3
   ============================================================ */
.course-v3-section {
  padding: 80px 0 80px;
  background: url("../../assets/images/course-bg-pc.png") center/cover no-repeat;
  position: relative;
}

.course-v3-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: #fff;
  z-index: 1;
}

.course-v3-section .container {
  position: relative;
  z-index: 2;
}
.course-v3-tabs {
  display: flex;
  justify-content: space-between;
  border-bottom: 2px solid rgba(70, 111, 181, 0.12);
}
.course-v3-tabs button {
  position: relative;
  flex: 1;
  min-height: 54px;
  padding: 0 16px;
  border: 0;
  background: transparent;
  color: #3f4b5c;
  font: inherit;
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
  transition: color 0.2s ease;
}
.course-v3-tabs button::after {
  content: "";
  position: absolute;
  left: 25%;
  right: 25%;
  bottom: -2px;
  height: 3px;
  border-radius: 999px;
  background: transparent;
  transition: background 0.25s ease;
}
.course-v3-tabs button:hover { color: #1769ff; }
.course-v3-tabs button[aria-selected="true"] { color: #1769ff; }
.course-v3-tabs button[aria-selected="true"]::after { background: #1769ff; }
.course-v3-panel {
  display: grid;
  grid-template-columns: minmax(260px, 29%) minmax(0, 1fr);
  border: 1px solid rgba(189, 211, 241, 0.6);
  border-radius: 0 0 16px 16px;
  background: #fff;
  box-shadow: 0 16px 48px rgba(45, 92, 166, 0.08);
  overflow: hidden;
}
.course-v3-overview {
  position: relative;
  padding: 34px 28px;
  color: #fff;
  background: linear-gradient(155deg, #19bde6 0%, #268df7 44%, #315cf0 100%);
  overflow: hidden;
}
.course-v3-overview::before {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 160px;
  height: 160px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
}
.course-v3-overview > * { position: relative; z-index: 1; }
.course-v3-overview h3 {
  margin: 0 0 20px;
  font-size: 20px;
  line-height: 1.4;
  font-weight: 800;
}
.course-v3-overview p {
  margin: 0 0 12px;
  font-size: 12px;
  line-height: 1.8;
  opacity: 0.88;
}
.course-v3-salary { margin-top: 30px; }
.course-v3-salary small {
  display: block;
  font-size: 12px;
  opacity: 0.85;
  margin-bottom: 4px;
}
.course-v3-salary strong { font-size: 30px; font-weight: 800; }
.course-v3-content {
  padding: 28px 32px 24px;
  display: flex;
  flex-direction: column;
}
.course-v3-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.course-v3-head h3 {
  margin: 0;
  color: #263247;
  font-size: 18px;
  font-weight: 800;
}
.course-v3-duration {
  padding: 6px 16px;
  border-radius: 999px;
  background: #e8f1ff;
  color: #1769ff;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap !important;
}
.course-v3-stages {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: 1px solid #e8eef6;
  margin-bottom: 18px;
}
.course-v3-stages::-webkit-scrollbar { display: none; }
.course-v3-stages button {
  position: relative;
  flex: 0 0 auto;
  min-width: 88px;
  min-height: 42px;
  padding: 0 12px;
  border: 0;
  background: transparent;
  color: #8490a2;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  transition: color 0.2s;
}
.course-v3-stages button::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: transparent;
}
.course-v3-stages button:hover,
.course-v3-stages button[aria-selected="true"] { color: #1769ff; }
.course-v3-stages button[aria-selected="true"]::after { background: #1769ff; }
.course-v3-stage-body { display: grid; gap: 14px; flex: 1; }
.course-v3-stage-body section {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
}
.course-v3-stage-body section > span {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: #edf4ff;
  color: #1769ff;
  font-size: 10px;
  font-weight: 800;
}
.course-v3-stage-body h4 {
  margin: 2px 0 6px;
  color: #2f3a4d;
  font-size: 13px;
  font-weight: 700;
}
.course-v3-stage-body p,
.course-v3-stage-body ol {
  margin: 0;
  color: #5f6c7f;
  font-size: 12px;
  line-height: 1.7;
}
.course-v3-stage-body ol { padding-left: 16px; }
.course-v3-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 18px;
}
.course-v3-actions .button {
  min-width: 116px;
  min-height: 40px;
  padding: 0 18px;
  font-size: 13px;
  border-radius: 8px;
}

/* ============================================================
   名师团队 V3
   ============================================================ */
.teacher-v3-section {
  padding: 80px 0 80px;
  background: #fff;
}
.teacher-v3-scroll {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}
.teacher-v3-track {
  flex: 1;
  display: flex;
  flex-wrap: nowrap;
  gap: 18px;
  overflow-x: auto;
  scroll-behavior: smooth;
  scrollbar-width: none;
  padding: 8px 4px;
}
.teacher-v3-track::-webkit-scrollbar { display: none; }
.teacher-v3-item {
  flex: 0 0 158px;
  width: 158px;
  text-align: center;
  cursor: pointer;
  transition: transform 0.25s ease;
}
.teacher-v3-item:hover { /* 移除上下跳动，只改背景色 */ }
.teacher-v3-avatar {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 16px;
  overflow: visible;
  margin: 0 auto 12px;
  border: none;
  background: linear-gradient(135deg, #e8f1ff, #d0e2ff);
  transition: background 0.25s ease, box-shadow 0.25s ease;
  position: relative;
}
.teacher-v3-avatar img {
  width: 100%;
  height: auto;
  max-height: 115%;
  object-fit: contain;
  object-position: bottom center;
  display: block;
  position: absolute;
  bottom: 0;
  left: 0;
  border-radius: 16px;
}
.teacher-v3-item:hover .teacher-v3-avatar,
.teacher-v3-item.is-active .teacher-v3-avatar {
  background: linear-gradient(135deg, #4a8dff, #1769ff);
  box-shadow: 0 10px 26px rgba(23, 105, 255, 0.22);
}
.teacher-v3-meta strong {
  display: block;
  color: #263247;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 3px;
}
.teacher-v3-meta small { color: #8490a2; font-size: 11px; }
.teacher-v3-arrow {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 0;
  background: transparent;
  cursor: pointer;
  transition: transform 0.2s ease;
}
.teacher-v3-arrow img {
  width: 100%;
  height: 100%;
  display: block;
  filter: grayscale(100%) opacity(0.35);
  transition: filter 0.2s ease, transform 0.2s ease;
}
.teacher-v3-arrow:hover {
  transform: scale(1.1);
}
.teacher-v3-arrow:hover img {
  filter: none;
}
.teacher-v3-detail {
  background: linear-gradient(135deg, #f0f6ff 0%, #e8f1ff 100%);
  border-radius: 14px;
  padding: 26px 30px;
}
.teacher-v3-detail h3 {
  margin: 0 0 14px;
  color: #1a2740;
  font-size: 19px;
  font-weight: 800;
}
.teacher-v3-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.teacher-v3-tags span {
  padding: 6px 16px;
  border-radius: 8px;
  background: #dbe8ff;
  color: #1769ff;
  font-size: 12px;
  font-weight: 600;
}
.teacher-v3-highlights {
  list-style: none;
  margin: 4px 0 12px;
  padding: 0;
  display: grid;
  gap: 6px;
}
.teacher-v3-highlights li {
  position: relative;
  padding-left: 16px;
  color: #33425c;
  font-size: 13px;
  line-height: 1.7;
  font-weight: 600;
}
.teacher-v3-highlights li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #1769ff;
}
.teacher-v3-intro {
  margin: 0;
  color: #6a778c;
  font-size: 12.5px;
  line-height: 1.9;
}

/* ============================================================
   企业内推 V3
   ============================================================ */
.company-v3-section {
  padding: 80px 0 72px;
  background: linear-gradient(180deg, #f5f9ff 0%, #eef4ff 100%);
}
.company-v3-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.company-v3-card {
  background: #fff;
  border-radius: 10px;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  cursor: pointer;
}
.company-v3-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(33, 105, 228, 0.13);
}
.company-v3-head {
  display: flex;
  align-items: center;
  gap: 12px;
}
.company-v3-logo {
  width: 46px;
  height: 46px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  flex-shrink: 0;
}
.company-v3-logo-img {
  width: 46px;
  height: 46px;
  border-radius: 10px;
  object-fit: contain;
  flex-shrink: 0;
  display: block;
}
.company-v3-info strong {
  display: block;
  color: #263247;
  font-size: 15px;
  font-weight: 700;
}
.company-v3-info small { color: #8490a2; font-size: 11px; }
.company-v3-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid #f0f4fa;
}
.company-v3-foot span { color: #9aa5b5; font-size: 11px; }
.company-v3-foot a {
  color: #9aa5b5;
  font-size: 11px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: color 0.2s ease;
}
.company-v3-foot a i { font-style: normal; margin-left: 2px; font-size: 13px; line-height: 1; }
.company-v3-card:hover .company-v3-foot a { color: #1769ff; }

/* ============================================================
   学员就业 V3
   ============================================================ */
.student-v3-section {
  padding: 80px 0 72px;
  background: linear-gradient(180deg, #eef4ff 0%, #f5f9ff 100%);
}
.student-v3-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 34px;
}
.student-v3-card {
  background: #fff;
  border-radius: 10px;
  padding: 20px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.student-v3-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(33, 105, 228, 0.13);
}
.student-v3-course {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px 5px 6px;
  border-radius: 8px;
  background: #f3f5f9;
  color: #44536b;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 14px;
}
.student-v3-course img {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
}
.student-v3-name {
  margin: 0 0 8px;
  color: #263247;
  font-size: 16px;
  font-weight: 700;
}
.student-v3-salary {
  margin: 0 0 8px;
  color: #1a2740;
  font-size: 20px;
  font-weight: 800;
}
.student-v3-company {
  margin: 0;
  color: #8490a2;
  font-size: 12px;
}
.student-v3-more { text-align: center; }
.student-v3-more .button {
  min-width: 170px;
  min-height: 44px;
  border-radius: 8px;
  font-size: 14px;
}

/* ============================================================
   校区分布 V3
   ============================================================ */
.campus-v3-section {
  padding: 80px 0 80px;
  background: #fff;
}
.campus-v3-tabs {
  display: flex;
  justify-content: center;
  gap: 56px;
  margin-bottom: 30px;
  border-bottom: 2px solid #e8eef6;
}
.campus-v3-tabs button {
  position: relative;
  padding: 12px 4px;
  border: 0;
  background: transparent;
  color: #3f4b5c;
  font: inherit;
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
  transition: color 0.2s;
}
.campus-v3-tabs button::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 3px;
  background: transparent;
  transition: background 0.25s;
}
.campus-v3-tabs button[aria-selected="true"] { color: #1769ff; }
.campus-v3-tabs button[aria-selected="true"]::after { background: #1769ff; }
.campus-v3-badge {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 8px;
  border-radius: 4px;
  background: #e8f1ff;
  color: #1769ff;
  font-size: 10px;
  font-weight: 600;
  vertical-align: middle;
}
.campus-v3-content {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 18px;
  margin-bottom: 24px;
}
.campus-v3-info {
  background: linear-gradient(180deg, #CCE9FF 0%, #FFFFFF 100%);
  border-radius: 16px;
  border: 2px solid #CEE0FA;
  padding: 26px;
}
.campus-v3-info-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.campus-v3-info-head img {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
}
.campus-v3-info-head h3 {
  margin: 0;
  color: #1a2740;
  font-size: 17px;
  font-weight: 800;
}
.campus-v3-info-head small {
  display: block;
  color: #8490a2;
  font-size: 10px;
  letter-spacing: 0.05em;
}
.campus-v3-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}
.campus-v3-tags span {
  padding: 4px 12px;
  border-radius: 6px;
  background: #e8f1ff;
  color: #1769ff;
  font-size: 11px;
  font-weight: 600;
}
.campus-v3-info p {
  margin: 0 0 20px;
  color: #5a6a82;
  font-size: 13px;
  line-height: 1.7;
}
.campus-v3-detail {
  background: linear-gradient(180deg, #CCE9FF 0%, #FFFFFF 100%);
  border-radius: 16px;
  border: 2px solid #CEE0FA;
  padding: 26px;
}
.campus-v3-detail h4 {
  margin: 0 0 14px;
  color: #1a2740;
  font-size: 16px;
  font-weight: 800;
}
.campus-v3-subjects {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}
.campus-v3-subjects span {
  padding: 8px 16px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid #d8e5f4;
  color: #3a4a62;
  font-size: 12px;
  font-weight: 600;
}
.campus-v3-address p {
  margin: 0 0 6px;
  color: #5a6a82;
  font-size: 13px;
  line-height: 1.6;
}
.campus-v3-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.campus-v3-gallery img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 10px;
  transition: transform 0.3s ease;
  cursor: pointer;
}
.campus-v3-gallery img:hover { transform: scale(1.03); }

/* ============================================================
   FAQ V3（深色背景）
   ============================================================ */
.faq-v3-section {
  padding: 80px 0 80px;
  background: linear-gradient(180deg, #0a1628 0%, #0d1f3c 100%);
  position: relative;
  overflow: hidden;
}
.faq-v3-section::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  border: 1px solid rgba(64, 137, 255, 0.1);
  border-radius: 50%;
}
.faq-v3-heading h2 { color: #fff; }
.faq-v3-heading h2::before,
.faq-v3-heading h2::after {
  background:
    linear-gradient(180deg, #fff 0%, #fff 53.8%, transparent 53.8%),
    linear-gradient(90deg, transparent, rgba(255,255,255,0.6));
  background-blend-mode: multiply;
  box-shadow: 0 12px 0 0 rgba(255,255,255,0.32);
}
.faq-v3-list {
  max-width: 740px;
  margin: 0 auto 36px;
  display: grid;
  gap: 10px;
  position: relative;
  z-index: 1;
}
.faq-v3-item {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  overflow: hidden;
  transition: background 0.25s ease;
}
.faq-v3-item:hover { background: rgba(255, 255, 255, 0.09); }
.faq-v3-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 22px;
  border: 0;
  background: transparent;
  color: #fff;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
}
.faq-v3-question > span:first-child { flex: 1; }
.faq-v3-hot {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #ff8a65;
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
}
.faq-v3-hot img {
  width: 16px;
  height: 18px;
  object-fit: contain;
}
.faq-v3-icon {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 15px;
  font-weight: 400;
  line-height: 1;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}
.faq-v3-item.is-open .faq-v3-icon { transform: rotate(45deg); }
.faq-v3-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-v3-item.is-open .faq-v3-answer { max-height: 300px; }
.faq-v3-answer-inner {
  padding: 0 22px 18px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  line-height: 1.8;
  white-space: pre-line;
}
.faq-v3-cta {
  text-align: center;
  position: relative;
  z-index: 1;
}
.faq-v3-cta .button {
  min-width: 170px;
  min-height: 46px;
  border-radius: 8px;
  font-size: 14px;
}

/* ============================================================
   服务保障条 V3
   ============================================================ */
.service-v3-bar {
  padding: 36px 0;
  background: #f5f7fa;
  border-bottom: 1px solid #e8eef6;
}
.service-v3-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.service-v3-item {
  display: flex;
  align-items: center;
  gap: 14px;
}
.service-v3-item img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  flex-shrink: 0;
}
.service-v3-item strong {
  display: block;
  color: #1a2740;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 2px;
}
.service-v3-item small { color: #8490a2; font-size: 12px; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .hero-v3 { background-size: cover; background-position: right center; }
  .guarantee-panels { height: 300px; }
  .course-v3-panel { grid-template-columns: minmax(240px, 32%) 1fr; }
  .company-v3-grid,
  .student-v3-grid { grid-template-columns: repeat(3, 1fr); }
  .campus-v3-content { grid-template-columns: 1fr; }
  .campus-v3-gallery { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 860px) {
  .hero-v3 { min-height: 600px; background-position: center center; }
  .hero-copy-v3 { max-width: 100%; text-align: center; }
  .hero-copy-v3 h1 { font-size: 32px; }
  .hero-tags-v3 { justify-content: center; }
  .hero-actions-v3 { display: flex; justify-content: center; }
  .guarantee-panels { flex-direction: column; height: auto; gap: 14px; }
  .guarantee-panel,
  .guarantee-panel.is-active { flex: none; min-height: 120px; }
  .guarantee-panel.is-active { min-height: 286px; }
  .gp-expanded h3,
  .gp-expanded-text { max-width: 100%; }
  .gp-expanded-art { display: none; }
  .course-v3-tabs { overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
  .course-v3-tabs::-webkit-scrollbar { display: none; }
  .course-v3-tabs button { min-width: max-content; flex: 0 0 auto; padding: 0 20px; }
  .course-v3-panel { grid-template-columns: 1fr; }
  .course-v3-stages { overflow-x: auto; scrollbar-width: none; }
  .course-v3-stages::-webkit-scrollbar { display: none; }
  .course-v3-stages button { min-width: 80px; flex: 0 0 auto; }
  .company-v3-grid,
  .student-v3-grid { grid-template-columns: repeat(2, 1fr); }
  .campus-v3-tabs { justify-content: flex-start; gap: 24px; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
  .campus-v3-tabs::-webkit-scrollbar { display: none; }
  .campus-v3-tabs button { flex: 0 0 auto; white-space: nowrap; }
  .campus-v3-gallery { grid-template-columns: repeat(2, 1fr); }
  .service-v3-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .teacher-v3-track { display: flex; grid-template-columns: none; }
  .teacher-v3-item { width: 112px; flex: 0 0 auto; }
  .teacher-v3-avatar { width: 112px; height: 112px; }
}

@media (max-width: 560px) {
  .hero-v3 { 
    min-height: 530px !important; 
    background: url("../../assets/images/banner-mobile.png") no-repeat center center !important;
    background-size: cover !important;
    align-items: flex-start;
  }
  .hero-inner-v3 { padding: 0px 0 0; }
  .hero-copy-v3 { padding: 0 20px; text-align: left; max-width: 100%; }
  .hero-copy-v3 h1 { font-size: 26px; margin-bottom: 16px; line-height: 1.3; text-align: left; }
  .hero-sub-v3 { font-size: 11px; margin-bottom: 16px; padding: 4px 12px; }
  .hero-desc-v3 { font-size: 12px; margin-bottom: 20px; line-height: 1.6; }
  .hero-tags-v3 { gap: 10px 12px; margin-bottom: 28px; justify-content: flex-start; flex-direction: row; flex-wrap: nowrap; overflow: hidden; }
  .hero-v3 .hero-tags-v3 span { font-size: 12px !important; white-space: nowrap !important; flex-shrink: 0; }
  .hero-actions-v3 { justify-content: flex-start; display: flex; }
  .hero-actions-v3 .button-primary { min-width: 140px; min-height: 40px; padding: 0 20px; font-size: 13px; }
  .section-heading-v3 h2 { font-size: 24px; gap: 12px; }
  .section-heading-v3 h2::before,
  .section-heading-v3 h2::after { width: 40px; height: 10px; }
  .gp-expanded { padding: 24px 20px; }
  .gp-collapsed { padding: 22px 18px; }
  .company-v3-grid,
  .student-v3-grid { grid-template-columns: 1fr; }
  .campus-v3-gallery { grid-template-columns: 1fr; }
  .campus-v3-gallery img { height: 250px; }
  .service-v3-grid { grid-template-columns: 1fr; }
  .faq-v3-question { padding: 14px 16px; font-size: 13px; }
  .course-v3-content { padding: 22px 18px; overflow-x: hidden; }
  .course-v3-stage-body { min-width: 0; }
  .course-v3-actions { flex-direction: column; }
  .course-v3-actions .button { width: 100%; }
  .course-v3-section { padding: 20px 0 40px; }
  .course-v3-section::before { height: 30px; }
}
/* ---- Banner 描述段落 ---- */
.hero-desc-v3 {
  margin: 0 0 24px;
  max-width: 520px;
  color: #666;
  font-size: 14px;
  line-height: 1.8;
}

/* ===== 公众号二维码弹窗 ===== */
.official-qrcode-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.official-qrcode-modal.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.official-qrcode-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
}
.official-qrcode-dialog {
  position: relative;
  width: 520px;
  max-width: calc(100vw - 40px);
  padding: 32px 28px 28px;
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
  text-align: center;
  transform: translateY(20px) scale(0.95);
  transition: transform 0.3s ease;
}
.official-qrcode-modal.is-open .official-qrcode-dialog {
  transform: translateY(0) scale(1);
}
.official-qrcode-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: #f2f4f8;
  color: #666;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}
.official-qrcode-close:hover {
  background: #e8ebf0;
  color: #333;
}
.official-qrcode-title {
  margin: 0 0 8px;
  color: #1a1a1a;
  font-size: 20px;
  font-weight: 700;
}
.official-qrcode-desc {
  margin: 0 0 20px;
  color: #888;
  font-size: 13px;
  line-height: 1.5;
}
.official-qrcode-img {
  width: 180px;
  height: 180px;
  margin: 0 auto;
  padding: 12px;
  border: 1px solid #eee;
  border-radius: 12px;
  background: #fff;
}
.official-qrcode-img img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}
.official-qrcode-grid {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 8px;
}
.official-qrcode-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.official-qrcode-label {
  margin: 12px 0 0;
  color: #333;
  font-size: 14px;
  font-weight: 600;
}


/* 移动端标签不换行，支持横向滑动 */
@media (max-width: 560px) {
  .hero-v3 .hero-copy-v3 .hero-tags-v3 {
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .hero-v3 .hero-copy-v3 .hero-tags-v3::-webkit-scrollbar {
    display: none;
  }
  .hero-v3 .hero-copy-v3 .hero-tags-v3 span {
    white-space: nowrap !important;
    flex-shrink: 0 !important;
  }
}


/* 移动端首页banner标题调整 */
@media (max-width: 600px) {
  .hero-v3 .hero-inner h1 {
    font-size: 40px !important;
    line-height: 1.3;
  }
  .hero-v3 {
    padding-top: 20px !important;
  }
}


/* 移动端精品课程背景图 */
@media (max-width: 680px) {
  .course-v3-section {
    background: url("../../assets/images/course-bg-mobile.jpg") center/cover no-repeat !important;
  }
}


/* 移动端扫码关注弹窗二维码优化 */
@media (max-width: 600px) {
  .official-qrcode-dialog {
    width: calc(100vw - 40px) !important;
    padding: 24px 16px !important;
  }
  .official-qrcode-grid {
    gap: 16px !important;
  }
  .official-qrcode-img {
    width: 130px !important;
    height: 130px !important;
    padding: 8px !important;
  }
  .official-qrcode-label {
    font-size: 13px !important;
    margin-top: 8px !important;
  }
  .official-qrcode-title {
    font-size: 18px !important;
  }
  .official-qrcode-desc {
    font-size: 12px !important;
  }
}