/* ============================================
   智博教育 · 主样式
   ============================================ */

:root {
  --blue-50: #F2F5FF;
  --blue-100: #E0EAFF;
  --blue-200: #B5CCFF;
  --blue-500: #165DFF;
  --blue-600: #0E4AD9;
  --blue-900: #0E2A5C;
  --ink-900: #1D2129;
  --ink-700: #4E5969;
  --ink-500: #86909C;
  --ink-300: #C9CDD4;
  --bg: #FFFFFF;
  --bg-alt: #F7F9FC;
  --line: #E5E6EB;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 8px rgba(22, 93, 255, 0.06);
  --shadow: 0 12px 40px rgba(22, 93, 255, 0.08);
  --shadow-lg: 0 24px 60px rgba(22, 93, 255, 0.14);
  --t-fast: 160ms ease;
  --t: 280ms cubic-bezier(.2,.7,.2,1);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-900);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: transparent; color: inherit; }
em { font-style: normal; color: var(--blue-500); }

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.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;
}

/* ============================================
   BUTTON
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.2px;
  transition: transform var(--t-fast), background var(--t-fast), color var(--t-fast), box-shadow var(--t-fast);
  white-space: nowrap;
}
.btn--sm { padding: 9px 18px; font-size: 14px; }
.btn--lg { padding: 16px 30px; font-size: 16px; }
.btn--block { width: 100%; }

.btn--primary {
  background: var(--blue-500);
  color: #fff;
  box-shadow: 0 8px 24px rgba(22, 93, 255, 0.28);
}
.btn--primary:hover {
  background: var(--blue-600);
  transform: translateY(-1px);
  box-shadow: 0 12px 30px rgba(22, 93, 255, 0.36);
}

.btn--ghost {
  background: transparent;
  color: var(--ink-900);
  border: 1.5px solid var(--line);
}
.btn--ghost:hover {
  border-color: var(--blue-500);
  color: var(--blue-500);
}

/* ============================================
   NAV
   ============================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast), background var(--t-fast);
}
.nav.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(255, 255, 255, 0.94);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  color: var(--ink-900);
}
.logo__mark {
  width: 32px; height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--blue-500), var(--blue-900));
  color: #fff;
  border-radius: 9px;
  box-shadow: 0 4px 12px rgba(22, 93, 255, 0.3);
}
.logo__mark svg { width: 18px; height: 18px; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav__links a {
  font-size: 15px;
  color: var(--ink-700);
  position: relative;
  transition: color var(--t-fast);
}
.nav__links a:hover { color: var(--blue-500); }
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 2px;
  background: var(--blue-500);
  transition: width var(--t-fast);
}
.nav__links a:hover::after { width: 100%; }

.nav__actions { display: flex; align-items: center; gap: 12px; }

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
}
.nav__burger span {
  width: 22px; height: 2px;
  background: var(--ink-900);
  border-radius: 2px;
  transition: transform var(--t-fast), opacity var(--t-fast);
}
.nav__burger.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; }
.nav__burger.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nav__mobile {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 16px 24px 24px;
  background: #fff;
  border-top: 1px solid var(--line);
}
.nav__mobile a {
  padding: 12px 0;
  font-size: 16px;
  color: var(--ink-700);
  border-bottom: 1px solid var(--line);
}
.nav__mobile a:last-child { border-bottom: 0; }
.nav__mobile.is-open { display: flex; }

/* ============================================
   HERO CAROUSEL
   ============================================ */
.hero {
  position: relative;
  padding: 0 0 32px;
  overflow: hidden;
}

.hero-carousel {
  position: relative;
  width: 100%;
  /* 高度由 JS 根据图片实际宽高比动态计算 */
  height: 60vh;
  min-height: 320px;
  max-height: 820px;
  overflow: hidden;
  background: #FFFFFF;
  transition: height 0.3s ease;
}
.hero-carousel__track {
  position: relative;
  width: 100%;
  height: 100%;
}
.hero-carousel__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.7s ease;
  display: flex;
  align-items: flex-end;
}
.hero-carousel__slide.is-active {
  opacity: 1;
  visibility: visible;
}
.hero-carousel__slide img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  /* 等比例缩放完整显示，carousel 背景填充空隙 */
  object-fit: contain;
  object-position: center;
  z-index: 0;
}
/* 图片加载失败时的占位（无图时显示渐变 + 提示） */
.hero-carousel__slide.is-empty {
  background: linear-gradient(135deg, #165DFF 0%, #0E2A5C 60%, #6366F1 100%);
}
.hero-carousel__slide.is-empty::after {
  /* 在 fallback 时给个柔和光晕 */
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.08), transparent 60%);
  z-index: 0;
}
.hero-carousel__slide.is-empty img { display: none; }
.hero-carousel__slide.is-empty::before {
  content: "请放入 images/hero-1.jpg 至 hero-4.jpg";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.05em;
  white-space: nowrap;
  z-index: 1;
}

.hero-carousel__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  /* 白底场景下用极淡的渐变作为图片边缘融合 */
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.04) 0%,
    transparent 50%
  );
  pointer-events: none;
}








/* 左右箭头 */
.hero-carousel__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(14, 42, 92, 0.75);
  color: #fff;
  font-size: 28px;
  line-height: 1;
  font-weight: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(14, 42, 92, 0.1);
  box-shadow: 0 4px 16px rgba(14, 42, 92, 0.18);
  transition: background var(--t-fast), transform var(--t-fast);
  cursor: pointer;
}
.hero-carousel__arrow:hover {
  background: rgba(14, 42, 92, 0.95);
}
.hero-carousel__arrow--prev { left: 24px; }
.hero-carousel__arrow--next { right: 24px; }
.hero-carousel__arrow--prev:hover { transform: translateY(-50%) translateX(-2px); }
.hero-carousel__arrow--next:hover { transform: translateY(-50%) translateX(2px); }

/* 圆点 */
.hero-carousel__dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: 8px;
}
.hero-carousel__dot {
  width: 32px;
  height: 4px;
  border-radius: 2px;
  background: rgba(14, 42, 92, 0.25);
  transition: background var(--t-fast), width var(--t-fast);
  cursor: pointer;
  padding: 0;
}
.hero-carousel__dot:hover { background: rgba(14, 42, 92, 0.5); }
.hero-carousel__dot.is-active {
  background: var(--blue-500);
  width: 48px;
}

/* 数据条已移除 */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--blue-50);
  color: var(--blue-600);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3px;
  margin-bottom: 24px;
}
.eyebrow__dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--blue-500);
  box-shadow: 0 0 0 4px rgba(22,93,255,0.18);
  animation: pulse 2s ease-in-out infinite;
}
.eyebrow--blue {
  background: var(--blue-50);
  color: var(--blue-600);
  margin-bottom: 16px;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(22,93,255,0.18); }
  50% { box-shadow: 0 0 0 8px rgba(22,93,255,0.06); }
}

/* ============================================
   SECTION
   ============================================ */
.section {
  padding: 100px 0;
}
.section--alt {
  background: var(--bg-alt);
}
.section__head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}
.section__title {
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.015em;
  margin: 8px 0 12px;
}
.section__lead {
  font-size: 17px;
  color: var(--ink-700);
  margin: 0;
}

/* ============================================
   COURSE TABS
   ============================================ */
.course-tabs {
  display: flex;
  gap: 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 8px;
  margin-bottom: 36px;
  overflow-x: auto;
  scrollbar-width: none;
}
.course-tabs::-webkit-scrollbar { display: none; }

.course-tab {
  flex: 1;
  min-width: 220px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink-700);
  text-align: left;
  transition: all var(--t-fast);
  position: relative;
}
.course-tab:hover { background: var(--blue-50); color: var(--ink-900); }
.course-tab.is-active {
  background: var(--blue-500);
  color: #fff;
  box-shadow: 0 8px 24px rgba(22, 93, 255, 0.28);
}
.course-tab__num {
  font-size: 13px;
  font-weight: 700;
  opacity: 0.6;
  letter-spacing: 0.1em;
}
.course-tab__name {
  font-size: 17px;
  font-weight: 700;
  flex: 1;
}
.course-tab__tag {
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.18);
  letter-spacing: 0.2px;
}
.course-tab:not(.is-active) .course-tab__tag {
  background: var(--blue-50);
  color: var(--blue-600);
}

/* ============================================
   COURSE PANEL
   ============================================ */
.course-panel {
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: center;
  animation: fadeUp 0.45s ease both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.course-detail {
  width: 100%;
  max-width: 760px;
  background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-500) 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 40px 44px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.course-detail::before {
  content: "";
  position: absolute;
  top: -120px; right: -120px;
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(255,255,255,0.18), transparent 70%);
  border-radius: 50%;
}
.course-detail__name {
  font-size: 14px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.7;
  font-weight: 600;
}
.course-detail__title {
  font-size: 32px;
  line-height: 1.2;
  font-weight: 800;
  margin: 8px 0 16px;
  letter-spacing: -0.01em;
}
.course-detail__desc {
  font-size: 15px;
  line-height: 1.7;
  opacity: 0.88;
  margin: 0 0 32px;
}
.course-detail__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding-top: 24px;
  margin-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.18);
  position: relative;
}

/* ============================================
   COURSE SYLLABUS (4 阶段矩阵)
   ============================================ */
.course-syllabus {
  width: 100%;
  max-width: 1120px;
}
.syllabus-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.syllabus-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform var(--t), box-shadow var(--t);
}
.syllabus-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.syllabus-card__head {
  padding: 18px 20px 20px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.syllabus-card__head::after {
  content: "";
  position: absolute;
  top: -40px; right: -40px;
  width: 120px; height: 120px;
  background: radial-gradient(circle, rgba(255,255,255,0.18), transparent 70%);
  border-radius: 50%;
}
.syllabus-card--blue .syllabus-card__head { background: linear-gradient(135deg, #165DFF, #0E4AD9); }
.syllabus-card--cyan .syllabus-card__head { background: linear-gradient(135deg, #06B6D4, #0E8BC4); }
.syllabus-card--lightblue .syllabus-card__head { background: linear-gradient(135deg, #60A5FA, #3B82F6); }
.syllabus-card--deepblue .syllabus-card__head { background: linear-gradient(135deg, #1E40AF, #1E3A8A); }
.syllabus-card--purple .syllabus-card__head { background: linear-gradient(135deg, #8B5CF6, #6D28D9); }
.syllabus-card--purple .syllabus-card__item-t { color: #6D28D9; }
.syllabus-card--purple .syllabus-card__tag-item {
  color: #6D28D9;
  background: rgba(139, 92, 246, 0.08);
  border-color: rgba(139, 92, 246, 0.18);
}
.syllabus-card--orange .syllabus-card__head { background: linear-gradient(135deg, #FF6B35, #E01425); }

.syllabus-card__num {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  opacity: 0.7;
  margin-bottom: 6px;
}
.syllabus-card__head h5 {
  font-size: 16px;
  font-weight: 700;
  margin: 0;
  line-height: 1.35;
  letter-spacing: -0.005em;
}

.syllabus-card__items {
  list-style: none;
  margin: 0;
  padding: 18px 20px 8px;
  flex: 1;
}
.syllabus-card__items li { margin-bottom: 14px; }
.syllabus-card__items li:last-child { margin-bottom: 0; }
.syllabus-card__item-t {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--blue-600);
  margin-bottom: 3px;
  line-height: 1.4;
}
.syllabus-card--orange .syllabus-card__item-t { color: #E01425; }
.syllabus-card__item-s {
  display: block;
  font-size: 12px;
  color: var(--ink-700);
  line-height: 1.55;
}

/* tag 模式（纯标签列表，更紧凑） */
.syllabus-card__items--tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 18px 20px 12px;
}
.syllabus-card__items--tags li { margin: 0; }
.syllabus-card__tag-item {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  color: var(--blue-600);
  background: rgba(22, 93, 255, 0.08);
  border: 1px solid rgba(22, 93, 255, 0.15);
  padding: 4px 10px;
  border-radius: 6px;
  line-height: 1.4;
  white-space: nowrap;
}
.syllabus-card--orange .syllabus-card__tag-item {
  color: #C7111F;
  background: rgba(224, 20, 37, 0.06);
  border-color: rgba(224, 20, 37, 0.18);
}
.syllabus-card--cyan .syllabus-card__tag-item {
  color: #0E7490;
  background: rgba(6, 182, 212, 0.08);
  border-color: rgba(6, 182, 212, 0.18);
}

/* outcome 行（胜任岗位 + 参考薪资） */
.syllabus-card__outcome {
  padding: 12px 20px 16px;
  border-top: 1px dashed var(--line);
  background: #FAFBFD;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.syllabus-card__outcome-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 12px;
  line-height: 1.5;
}
.syllabus-card__outcome-label {
  flex-shrink: 0;
  font-weight: 600;
  color: #DC2626;
  min-width: 56px;
}
.syllabus-card__outcome-value {
  color: var(--ink-700);
  font-weight: 500;
}
.syllabus-card__outcome-salary {
  color: #DC2626;
  font-weight: 700;
  font-size: 13px;
}

.syllabus-card__summary {
  margin: 0;
  padding: 14px 20px 18px;
  font-size: 12px;
  color: var(--ink-500);
  line-height: 1.65;
  border-top: 1px dashed var(--line);
  background: #FAFBFD;
}


/* ============================================
   大厂面试专题（模块补充）
   ============================================ */
.course-interview {
  width: 100%;
  max-width: 1120px;
  margin-top: 4px;
}
.interview-card {
  background: linear-gradient(135deg, #165DFF 0%, #0E4AD9 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 22px 32px;
  display: flex;
  align-items: center;
  gap: 24px;
  box-shadow: 0 8px 24px rgba(22, 93, 255, 0.24);
}
.interview-card__head h4 {
  font-size: 18px;
  font-weight: 800;
  margin: 0;
  letter-spacing: -0.005em;
  white-space: nowrap;
  padding-right: 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.3);
}
.interview-card__desc {
  margin: 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.6;
  font-weight: 500;
}


/* 5 阶段网格（AIGC） */
.syllabus-grid--five {
  grid-template-columns: repeat(5, 1fr);
}
@media (max-width: 1024px) {
  .syllabus-grid--five { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 640px) {
  .syllabus-grid--five { grid-template-columns: 1fr; }
}

/* ============================================
   COURSE TABLE (AIGC 7 门核心课程)
   ============================================ */
.course-table {
  width: 100%;
  max-width: 1120px;
  background: linear-gradient(135deg, #1E40AF 0%, #1E3A8A 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 32px 32px;
  box-shadow: 0 12px 32px rgba(30, 64, 175, 0.28);
}
.course-table__title {
  font-size: 18px;
  font-weight: 800;
  margin: 0 0 18px;
  text-align: center;
  letter-spacing: -0.005em;
  color: #fff;
}
.course-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.course-table thead th {
  font-size: 13px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.85);
  text-align: left;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  letter-spacing: 0.05em;
}
.course-table tbody td {
  padding: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.55;
  vertical-align: top;
}
.course-table tbody tr:first-child td { border-top: 1px solid rgba(255, 255, 255, 0.18); }
.course-table tbody tr:hover td { background: rgba(255, 255, 255, 0.04); }
.course-table__col-num {
  width: 50px;
  font-weight: 700;
  color: #93C5FD;
}
.course-table__col-name {
  width: 28%;
  font-weight: 600;
  color: #fff;
}
@media (max-width: 768px) {
  .course-table { padding: 22px 16px 24px; }
  .course-table table { font-size: 12px; }
  .course-table thead { display: none; }
  .course-table tbody td {
    display: block;
    padding: 6px 0;
    border: 0;
  }
  .course-table tbody tr {
    display: block;
    padding: 12px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.18) !important;
  }
  .course-table__col-num { display: inline-block; width: auto; padding-right: 8px; }
  .course-table__col-name { display: block; margin: 4px 0; }
}

/* ============================================
   COURSE JOBS (就业岗位列表)
   ============================================ */
.course-jobs {
  width: 100%;
  max-width: 1120px;
  background: linear-gradient(180deg, #EAF2FF 0%, #DCEAFF 100%);
  border: 1px solid var(--blue-100);
  border-radius: var(--radius-lg);
  padding: 32px 40px 36px;
}
.course-jobs__title {
  font-size: 20px;
  font-weight: 800;
  color: var(--blue-600);
  margin: 0 0 22px;
  letter-spacing: -0.005em;
}
.jobs-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px 24px;
}
.jobs-item {
  font-size: 15px;
  font-weight: 600;
  color: var(--blue-600);
  position: relative;
  padding-left: 18px;
  line-height: 1.5;
}
.jobs-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue-500);
}
.course-detail__stat {
  display: flex; flex-direction: column; gap: 4px;
}
.course-detail__stat strong {
  font-size: 22px;
  font-weight: 800;
  font-feature-settings: "tnum";
}
.course-detail__stat span {
  font-size: 12px;
  opacity: 0.75;
  letter-spacing: 0.05em;
}

.course-modules {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.course-modules h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-700);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 20px;
}
.module-list {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.module-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  transition: background var(--t-fast);
}
.module-list li:hover { background: var(--blue-50); }
.module-list__num {
  width: 26px; height: 26px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--blue-50);
  color: var(--blue-500);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}
.module-list__text {
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink-900);
}
.module-list__text small {
  display: block;
  font-size: 12px;
  color: var(--ink-500);
  margin-top: 2px;
}

/* ============================================
   CTA
   ============================================ */
.cta {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--blue-50) 0%, #fff 100%);
}
.cta__inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--blue-100);
  border-radius: var(--radius-lg);
  padding: 56px;
  box-shadow: var(--shadow);
}
.cta__copy h2 {
  font-size: clamp(28px, 3.4vw, 38px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.015em;
  margin: 0 0 14px;
}
.cta__copy p {
  font-size: 16px;
  color: var(--ink-700);
  margin: 0;
}
.cta__form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.cta__form input,
.cta__form select {
  width: 100%;
  padding: 14px 18px;
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  font: inherit;
  color: var(--ink-900);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.cta__form input:focus,
.cta__form select:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 4px rgba(22, 93, 255, 0.12);
}
.cta__hint {
  font-size: 12px;
  color: var(--ink-500);
  margin: 4px 0 0;
  text-align: center;
}
.cta__hint.is-success { color: var(--blue-500); font-weight: 600; }
.cta__hint.is-error { color: #DC2626; font-weight: 600; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--blue-900);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer__brand p {
  font-size: 14px;
  line-height: 1.7;
  margin: 20px 0 0;
  max-width: 320px;
}
.footer__brand .logo { color: #fff; }

.footer__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.footer__cols h5 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 18px;
  letter-spacing: 0.05em;
}
.footer__cols a,
.footer__cols span {
  display: block;
  font-size: 14px;
  margin-bottom: 10px;
  color: rgba(255,255,255,0.7);
  transition: color var(--t-fast);
}
.footer__cols a:hover { color: var(--blue-200); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  font-size: 12px;
}
.footer__bottom .container {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

/* ============================================
   REVEAL ON SCROLL
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .nav__links { display: none; }

  .course-tabs { padding: 6px; }
  .course-tab { min-width: 0; padding: 16px 18px; gap: 12px; }
  .course-tab__name { font-size: 16px; }
  .nav__burger { display: flex; }
  .nav__actions .btn--primary { display: none; }
  .nav__mobile { display: none; }
  .nav__mobile.is-open { display: flex; }

  .hero { padding: 0 0 28px; }
.hero-carousel__arrow { width: 42px; height: 42px; font-size: 24px; }
  .hero-carousel__arrow--prev { left: 16px; }
  .hero-carousel__arrow--next { right: 16px; }


  .section { padding: 80px 0; }
  .section__head { margin-bottom: 40px; }

  .course-detail { padding: 32px 28px; }
  .course-detail__title { font-size: 26px; }
  .syllabus-grid { grid-template-columns: repeat(2, 1fr); }
  .course-jobs { padding: 28px 28px 32px; }
  .jobs-grid { grid-template-columns: repeat(2, 1fr); }
.cta__inner { grid-template-columns: 1fr; gap: 32px; padding: 40px 32px; }

  .footer__inner { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 640px) {
  .container { padding: 0 18px; }
  .syllabus-card__head { padding: 16px 18px 18px; }
  .syllabus-card__head h5 { font-size: 15px; }
  .syllabus-card__items--tags { padding: 14px 18px 10px; gap: 5px; }
  .syllabus-card__tag-item { font-size: 11px; padding: 3px 8px; }
  .syllabus-card__outcome { padding: 10px 18px 14px; }
  .interview-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 20px 22px;
  }
  .interview-card__head h4 {
    padding-right: 0;
    border-right: 0;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    width: 100%;
    font-size: 16px;
  }

  /* 课程 Tab：移动端纵向堆叠，3 个全部完整展示 */
  .course-tabs {
    flex-direction: column;
    gap: 8px;
    padding: 6px;
  }
  .course-tab {
    min-width: 0;
    width: 100%;
    padding: 16px 18px;
    gap: 14px;
    border-radius: 12px;
  }
  .course-tab__name {
    font-size: 15px;
    line-height: 1.3;
  }
  .course-tab__num { font-size: 12px; }
  .course-tab__tag {
    display: inline-block;
    font-size: 11px;
    padding: 3px 10px;
  }

@media (max-width: 480px) {

/* ============================================
   超宽屏（1440+）— hero 更高更震撼
   ============================================ */
@media (min-width: 1440px) {
}

@media (min-width: 1920px) {
  .hero-carousel__arrow { width: 56px; height: 56px; font-size: 32px; }
}
  .hero-carousel__arrow { width: 32px; height: 32px; font-size: 18px; }
  .hero-carousel__arrow--prev { left: 8px; }
  .hero-carousel__arrow--next { right: 8px; }
  .hero-carousel__dots { bottom: 10px; gap: 5px; }
  .hero-carousel__dot { width: 18px; height: 3px; }
  .hero-carousel__dot.is-active { width: 26px; }
}
  .nav__inner { height: 64px; }
  .logo__text { font-size: 16px; }

  .hero { padding: 0 0 20px; }
  .hero-carousel__arrow { width: 36px; height: 36px; font-size: 20px; }
  .hero-carousel__arrow--prev { left: 10px; }
  .hero-carousel__arrow--next { right: 10px; }
  .hero-carousel__dots { bottom: 14px; gap: 6px; }
  .hero-carousel__dot { width: 22px; height: 3px; }
  .hero-carousel__dot.is-active { width: 32px; }
.section { padding: 64px 0; }
  .section__title { font-size: 30px; }

  .course-tab { min-width: 200px; padding: 14px 16px; gap: 10px; }
  .course-tab__name { font-size: 14px; }
  .course-tab__tag { display: none; }

  .course-detail { padding: 28px 22px; }
  .course-detail__title { font-size: 22px; }
  .course-detail__stats { grid-template-columns: 1fr 1fr; }
  .course-modules { padding: 24px 20px; }
  .syllabus-grid { grid-template-columns: 1fr; }
  .course-jobs { padding: 24px 22px 28px; }
  .course-jobs__title { font-size: 18px; }
  .jobs-grid { grid-template-columns: 1fr; gap: 10px; }
  .jobs-item { font-size: 14px; }
.cta { padding: 64px 0; }
  .cta__inner { padding: 32px 22px; }

  .footer__cols { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer__bottom .container { flex-direction: column; gap: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}