/* 启秘少儿编程 — 学习体系样式（对齐 QHTML curriculum 结构） */

.ls-hero { padding: 56px 0 48px; background: linear-gradient(135deg, rgba(48,213,200,0.07), rgba(99,102,241,0.05)); }
.ls-hero-home { padding: 64px 0 56px; }
.ls-hero-curriculum { background: linear-gradient(135deg, rgba(15,79,143,0.08), rgba(48,213,200,0.06)); }
.ls-hero-competition { background: linear-gradient(135deg, rgba(139,92,246,0.08), rgba(244,63,94,0.05)); }
.ls-hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 40px; align-items: center; }
.ls-hero-img { width: 100%; border-radius: var(--qg-radius); box-shadow: var(--qg-shadow-lg); }
.ls-hero-visual { position: relative; }
.ls-hero-visual .code-hero-mascot {
  position: absolute; right: 0; bottom: -8px; max-width: 100px;
  filter: drop-shadow(0 6px 16px rgba(0,0,0,0.12));
}
.ls-eyebrow { font-size: 12px; font-weight: 700; letter-spacing: 0.12em; color: var(--qg-accent); text-transform: uppercase; }
.ls-lead { font-size: 1.05rem; color: var(--qg-ink-soft); line-height: 1.7; max-width: 58ch; }
.ls-tagline { font-weight: 600; color: var(--ls-accent, var(--qg-accent)); margin: 6px 0 12px; }

.ls-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.ls-chip {
  font-size: 12px; padding: 5px 12px; border-radius: 999px;
  background: var(--qg-bg); border: 1px solid var(--qg-line); color: var(--qg-ink-soft);
}

/* 六大板块 */
.ls-module-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.ls-module-grid-2 { grid-template-columns: repeat(2, 1fr); max-width: 720px; }
.ls-module {
  display: block; padding: 22px; border-radius: var(--qg-radius-sm);
  border: 1px solid var(--qg-line); background: #fff; text-decoration: none; color: inherit;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.ls-module:hover { transform: translateY(-3px); box-shadow: var(--qg-shadow-md); text-decoration: none; border-color: var(--qg-accent); }
.ls-module-badge { font-size: 11px; font-weight: 700; letter-spacing: 0.06em; opacity: 0.7; }
.ls-module-scale { font-size: 13px; font-weight: 600; color: var(--qg-accent); margin: 4px 0 8px; }
.ls-module-link { display: inline-block; margin-top: 12px; font-size: 13px; font-weight: 600; color: var(--qg-accent); }
.ls-tone-navy { border-top: 3px solid #0f4f8f; }
.ls-tone-teal { border-top: 3px solid #14b8a6; }
.ls-tone-green { border-top: 3px solid #1b8a67; }
.ls-tone-gold { border-top: 3px solid #eab308; }
.ls-tone-coral { border-top: 3px solid #f43f5e; }
.ls-tone-violet { border-top: 3px solid #855CD6; }

/* 四条主线 */
.ls-track-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.ls-track {
  display: block; padding: 22px; border-radius: var(--qg-radius-sm);
  border: 1px solid var(--qg-line); background: #fff; text-decoration: none; color: inherit;
  transition: 0.2s;
}
.ls-track:hover { box-shadow: var(--qg-shadow-md); text-decoration: none; transform: translateY(-2px); }
.ls-track-head { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; }
.ls-track-head strong { font-size: 1.05rem; }
.ls-track-head span { font-size: 12px; color: var(--qg-ink-soft); }
.ls-track-scale { font-size: 13px; font-weight: 600; margin-top: 10px; color: var(--qg-accent); }

/* 阶段卡片 */
.ls-panel { padding: 24px; border-radius: var(--qg-radius-sm); background: var(--qg-bg); border: 1px solid var(--qg-line); }
.ls-phase-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; margin-top: 8px; }
.ls-phase {
  padding: 20px; border-radius: var(--qg-radius-sm); background: #fff;
  border: 1px solid var(--qg-line); border-left: 4px solid var(--ls-accent, var(--qg-accent));
}
.ls-phase-no {
  display: inline-block; font-size: 11px; font-weight: 700; padding: 3px 10px;
  border-radius: 999px; background: var(--qg-bg); margin-bottom: 8px;
}
.ls-phase h3 { font-size: 1rem; margin: 0 0 8px; }
.ls-phase p { font-size: 14px; color: var(--qg-ink-soft); margin: 0 0 8px; line-height: 1.6; }
.ls-phase-result { font-size: 13px !important; color: var(--qg-ink) !important; }
.ls-phase .ls-chips { margin-top: 10px; }

/* 组合路径 */
.ls-path-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.ls-path-card {
  padding: 16px; border-radius: var(--qg-radius-sm); background: #fff;
  border: 1px solid var(--qg-line); text-align: center;
}
.ls-path-card strong { display: block; margin-bottom: 6px; font-size: 14px; }
.ls-path-card span { font-size: 13px; color: var(--qg-accent); font-weight: 500; }

/* 教案卡片 */
.ls-doc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.ls-doc-card { padding: 22px; border-radius: var(--qg-radius-sm); background: #fff; border: 1px solid var(--qg-line); }
.ls-doc-type { font-size: 11px; font-weight: 700; color: var(--qg-accent); letter-spacing: 0.06em; }
.ls-doc-card h3 { margin: 8px 0 16px; font-size: 1rem; }
.ls-doc-actions { display: flex; flex-wrap: wrap; gap: 8px; }

/* 赛事 */
.ls-comp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.ls-comp-card { padding: 22px; border-radius: var(--qg-radius-sm); background: #fff; border: 1px solid var(--qg-line); }
.ls-comp-card h3 { margin: 0 0 10px; font-size: 1rem; }
.ls-comp-card p { margin: 0; font-size: 14px; color: var(--qg-ink-soft); line-height: 1.6; }
.ls-note { text-align: center; margin-top: 24px; color: var(--qg-ink-soft); }

.code-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }

/* 课程分类入口：真实平台画面 + 清晰课程信息 */
.ls-course-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px;
}
.ls-course-card {
  display: flex; min-width: 0; flex-direction: column; overflow: hidden;
  border: 1px solid var(--qg-line); border-radius: var(--qg-radius);
  color: inherit; background: #fff; text-decoration: none;
  transition: transform .28s var(--qg-ease), box-shadow .28s var(--qg-ease), border-color .28s var(--qg-ease);
}
.ls-course-card:hover {
  transform: translateY(-5px); box-shadow: 0 18px 48px rgba(15,31,55,.11);
  border-color: rgba(0,102,204,.3); text-decoration: none;
}
.ls-course-image { aspect-ratio: 16 / 9; overflow: hidden; background: #07182a; }
.ls-course-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--qg-ease); }
.ls-course-card:hover .ls-course-image img { transform: scale(1.035); }
.ls-course-copy { display: flex; flex: 1; flex-direction: column; padding: 23px; }
.ls-course-copy h3 { margin: 8px 0 4px; font-size: 1.16rem; }
.ls-course-copy > p:not(.ls-module-scale) { color: var(--qg-ink-soft); font-size: 14px; line-height: 1.75; }
.ls-course-copy .ls-module-link { margin-top: auto; padding-top: 15px; }

/* 少儿编程栏目二级导航，移动端可横向滑动 */
.code-subnav {
  position: sticky; top: var(--qg-header-h); z-index: 120;
  border-bottom: 1px solid var(--qg-line); background: rgba(255,255,255,.91);
  backdrop-filter: saturate(180%) blur(18px); -webkit-backdrop-filter: saturate(180%) blur(18px);
}
.code-subnav-inner {
  display: flex; align-items: center; gap: 4px; overflow-x: auto; padding: 9px 0;
  scrollbar-width: none; -webkit-overflow-scrolling: touch;
}
.code-subnav-inner::-webkit-scrollbar { display: none; }
.code-subnav a {
  flex: 0 0 auto; padding: 7px 12px; border-radius: 999px;
  color: var(--qg-ink-soft); font-size: 13px; font-weight: 550; text-decoration: none;
}
.code-subnav a:hover, .code-subnav a[aria-current="page"] { color: #075fb8; background: #eaf4ff; }

.ls-course-pager {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 28px;
}
.ls-course-pager a {
  display: flex; flex-direction: column; gap: 3px; padding: 18px 20px;
  border: 1px solid var(--qg-line); border-radius: var(--qg-radius-sm); background: #fff;
  color: inherit; text-decoration: none;
}
.ls-course-pager a:last-child { text-align: right; }
.ls-course-pager small { color: var(--qg-muted); }
.ls-course-pager strong { color: var(--qg-accent); }

.ls-source-note {
  margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--qg-line);
  color: var(--qg-muted); font-size: 13px; line-height: 1.7;
}

@media (max-width: 900px) {
  .ls-hero-grid, .ls-track-grid, .ls-path-grid, .ls-comp-grid, .ls-module-grid-2 { grid-template-columns: 1fr; }
  .ls-course-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .ls-course-grid, .ls-course-pager { grid-template-columns: 1fr; }
  .ls-course-pager a:last-child { text-align: left; }
  .code-subnav a { padding: 7px 10px; font-size: 12px; }
}