/* ============================================
   优学仕教育官网 · Sections（区块布局骨架）
   ============================================ */

/* ================= 课程中心 ================= */
.courses {
  background: var(--bg-soft);
}
.courses__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.courses__more {
  margin-top: 44px;
  text-align: center;
}

/* 课程详情弹窗 */
.course-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  visibility: hidden;
  opacity: 0;
  transition: all 0.3s var(--ease);
}
.course-modal.is-open { visibility: visible; opacity: 1; }
.course-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(20, 8, 48, 0.62);
  backdrop-filter: blur(6px);
}
.course-modal__panel {
  position: relative;
  width: 100%;
  max-width: 620px;
  max-height: 86vh;
  overflow-y: auto;
  background: var(--bg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  transform: translateY(24px) scale(0.97);
  transition: all 0.32s var(--ease);
}
.course-modal.is-open .course-modal__panel { transform: translateY(0) scale(1); }
.course-modal__banner {
  position: relative;
  padding: 34px 36px;
  color: #fff;
}
.course-modal__banner--purple { background: var(--grad-brand); }
.course-modal__banner--deep { background: var(--grad-deep); }
.course-modal__banner--gold { background: var(--grad-gold); }
.course-modal__banner h3 { color: #fff; font-size: 23px; margin-bottom: 6px; }
.course-modal__banner p { color: rgba(255,255,255,0.82); font-size: 14px; }
.course-modal__close {
  position: absolute;
  top: 16px; right: 16px;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.18);
  color: #fff;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--dur) var(--ease);
}
.course-modal__close:hover { background: rgba(255,255,255,0.32); }
.course-modal__body { padding: 30px 36px 34px; }
.course-modal__price-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 22px;
}
.course-modal__price {
  font-family: var(--font-en);
  font-size: 30px;
  font-weight: 800;
  color: var(--orange-500);
}
.course-modal__price .yen { font-size: 0.6em; }
.course-modal__price-origin {
  font-size: 14px;
  color: var(--ink-400);
  text-decoration: line-through;
}
.course-modal__section-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-900);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.course-modal__section-title::before {
  content: "";
  width: 4px; height: 16px;
  border-radius: 3px;
  background: var(--grad-brand);
}
.course-modal__feature-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 18px;
  margin-bottom: 24px;
}
.course-modal__feature-list li {
  font-size: 13.5px;
  color: var(--ink-500);
  display: flex;
  align-items: center;
  gap: 8px;
}
.course-modal__feature-list li::before {
  content: "✓";
  color: var(--success);
  font-weight: 800;
  font-size: 14px;
}
.course-modal__info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 26px;
}
.course-modal__info-item {
  text-align: center;
  padding: 14px 8px;
  background: var(--bg-soft);
  border-radius: var(--radius-md);
  border: 1px solid var(--line-soft);
}
.course-modal__info-item b {
  display: block;
  font-size: 15px;
  color: var(--purple-600);
  font-weight: 700;
  margin-bottom: 3px;
}
.course-modal__info-item span { font-size: 12px; color: var(--ink-400); }
.course-modal__actions { display: flex; gap: 14px; }

/* ================= 学习路径（深色区块） ================= */
.path-section {
  background: var(--grad-deep);
  color: rgba(255,255,255,0.8);
  overflow: hidden;
}
.path-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(700px 420px at 15% 0%, rgba(139,60,246,0.30), transparent 60%),
    radial-gradient(640px 400px at 90% 100%, rgba(76,43,160,0.32), transparent 55%);
  pointer-events: none;
}
.path-section .section-head { position: relative; z-index: 2; }
.path-section .section-head h2 { color: #ffffff; }
.path-section .path { position: relative; z-index: 2; margin-bottom: 40px; }
.path-section .path__step-name { color: #fff; }
.path-section .path__step-desc { color: rgba(255,255,255,0.6); }
.path-section .path__step::before {
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.28);
  color: #fff;
}
.path-section .path__step:hover::before { background: var(--grad-brand); border-color: transparent; }
.path-section .path__step:not(:last-child)::after {
  background: repeating-linear-gradient(90deg, rgba(255,255,255,0.30) 0 6px, transparent 6px 12px);
}
.path-section .path__step .phase { color: var(--gold-400); }

.path-extra {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 16px;
}
.path-extra__item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
}
.path-extra__icon {
  width: 44px; height: 44px;
  flex-shrink: 0;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: rgba(139, 60, 246, 0.30);
  color: #fff;
}
.path-extra__title { font-size: 14.5px; font-weight: 700; color: #fff; margin-bottom: 2px; }
.path-extra__desc { font-size: 12px; color: rgba(255,255,255,0.58); }

/* ================= 师资团队 ================= */
.teachers__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.teachers__more {
  margin-top: 46px;
  text-align: center;
}

/* ================= 机构优势 ================= */
.advantages__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

/* ================= 学员成果 ================= */
.results__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-bottom: 48px;
}
.results__cases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 56px;
}
.testimonials__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 26px;
}
.testimonials__head h3 { font-size: var(--fs-h3); }

/* ================= 教学环境 ================= */
.env-section { background: var(--bg-soft); }

/* ================= 关于我们 ================= */
.about__intro {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(36px, 5vw, 64px);
  align-items: center;
  margin-bottom: clamp(48px, 6vw, 72px);
}
.about__intro-text h2 { font-size: var(--fs-h2); margin-bottom: 18px; }
.about__intro-text p { font-size: 15px; color: var(--ink-500); margin-bottom: 14px; line-height: 1.85; }
.about__intro-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  background: var(--purple-100);
  border: 1px solid var(--purple-200);
  font-size: 14px;
  font-weight: 600;
  color: var(--purple-700);
}
.about__intro-visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: 380px;
  background: var(--grad-brand);
  display: flex;
  align-items: center;
  justify-content: center;
}
.about__intro-visual .big-word {
  font-size: clamp(72px, 9vw, 120px);
  font-weight: 900;
  color: rgba(255,255,255,0.16);
  letter-spacing: 0.02em;
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about__intro-visual .stat-float {
  position: absolute;
  background: rgba(255,255,255,0.95);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  box-shadow: var(--shadow-lg);
  animation: floatY 5s ease-in-out infinite;
}
.about__intro-visual .stat-float .n {
  font-family: var(--font-en);
  font-size: 24px;
  font-weight: 800;
  color: var(--purple-600);
  line-height: 1;
}
.about__intro-visual .stat-float .t { font-size: 12px; color: var(--ink-500); margin-top: 4px; }
.about__intro-visual .stat-float--1 { top: 14%; left: 8%; }
.about__intro-visual .stat-float--2 { bottom: 16%; right: 8%; animation-delay: -2.5s; }

.about__cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-bottom: clamp(52px, 6vw, 76px);
}

.about__lower {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 5vw, 72px);
}
.about__lower-title {
  font-size: var(--fs-h3);
  margin-bottom: 28px;
  position: relative;
  padding-left: 16px;
}
.about__lower-title::before {
  content: "";
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 5px;
  border-radius: 4px;
  background: var(--grad-brand);
}

/* ================= 新闻资讯 ================= */
.news { background: var(--bg-soft); }
.news__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news__more { margin-top: 44px; text-align: center; }

/* ================= 招聘信息 ================= */
.jobs__list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.jobs__footnote {
  margin-top: 26px;
  font-size: 13px;
  color: var(--ink-400);
  text-align: center;
}
.jobs__footnote a { color: var(--purple-600); font-weight: 600; }

/* ================= 联系我们 ================= */
.contact { background: var(--bg-soft); }
.contact__left-head { margin-bottom: 10px; }
.contact__map-row {
  margin-top: 28px;
}

/* ================= 分区响应式 ================= */
@media (max-width: 1200px) {
  .courses__grid { grid-template-columns: repeat(2, 1fr); }
  .teachers__grid { grid-template-columns: repeat(3, 1fr); }
  .path { grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
  .path__step:nth-child(3)::after { display: none; }
  .path-extra { grid-template-columns: repeat(2, 1fr); }
  .about__cards-grid { grid-template-columns: repeat(2, 1fr); }
  .env-grid { grid-template-columns: repeat(3, 1fr); }
  .env-card--wide { grid-column: span 2; aspect-ratio: 32 / 9; }
}

@media (max-width: 992px) {
  .advantages__grid { grid-template-columns: repeat(2, 1fr); }
  .results__stats { grid-template-columns: repeat(2, 1fr); }
  .results__cases { grid-template-columns: repeat(2, 1fr); }
  .testimonial-card { flex: 0 0 calc((100% - 24px) / 2); }
  .about__intro, .about__lower { grid-template-columns: 1fr; }
  .about__intro-visual { min-height: 320px; }
  .contact-grid { grid-template-columns: 1fr; }
  .jobs__list { grid-template-columns: 1fr; }
  .footer__main { grid-template-columns: 1fr 1fr; }
  .news__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .courses__grid { grid-template-columns: 1fr; }
  .teachers__grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-card { flex: 0 0 100%; }
  .env-grid { grid-template-columns: repeat(2, 1fr); }
  .env-card--wide { grid-column: span 2; aspect-ratio: 32 / 9; }
  .path { grid-template-columns: repeat(2, 1fr); }
  .path__step:nth-child(2)::after { display: none; }
  .path-extra { grid-template-columns: 1fr; }
  .course-modal__feature-list { grid-template-columns: 1fr; }
  .course-modal__info-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 576px) {
  .teachers__grid { grid-template-columns: 1fr; }
  .advantages__grid { grid-template-columns: 1fr; }
  .results__cases { grid-template-columns: 1fr; }
  .news__grid { grid-template-columns: 1fr; }
  .about__cards-grid { grid-template-columns: 1fr; }
  .footer__main { grid-template-columns: 1fr; }
  .jobs__list { grid-template-columns: 1fr; }
  .results__stats { grid-template-columns: 1fr 1fr; }
  .env-grid { grid-template-columns: 1fr 1fr; }
  .hero__actions .btn { flex: 1; min-width: 150px; }
}