:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-2: #eef4f6;
  --ink: #17212b;
  --muted: #5e6b78;
  --line: #dce5ea;
  --blue: #156dff;
  --blue-dark: #073a8c;
  --green: #0e6f63;
  --gold: #bd8b2e;
  --shadow: 0 24px 70px rgba(23, 33, 43, 0.12);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", Arial, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 76px;
  padding: 0 clamp(20px, 5vw, 72px);
  background: rgba(246, 248, 251, 0.84);
  border-bottom: 1px solid rgba(220, 229, 234, 0.72);
  backdrop-filter: blur(18px);
}

.site-header.is-scrolled {
  box-shadow: 0 10px 35px rgba(23, 33, 43, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 188px;
}

.brand-mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--blue-dark), var(--green));
  border-radius: 8px;
  font-size: 20px;
  font-weight: 800;
}

.brand-text {
  display: grid;
  line-height: 1.1;
}

.brand-text strong {
  font-size: 17px;
}

.brand-text small {
  margin-top: 4px;
  color: var(--muted);
  font-family: Arial, sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 3vw, 34px);
  color: var(--muted);
  font-size: 15px;
}

.nav a:hover,
.mobile-nav a:hover {
  color: var(--blue);
}

.nav-dropdown {
  position: relative;
}

.nav-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0;
  color: var(--muted);
  background: transparent;
  border: 0;
  font: inherit;
  cursor: pointer;
}

.nav-trigger::after {
  width: 7px;
  height: 7px;
  content: "";
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
}

.nav-dropdown.is-open .nav-trigger,
.nav-trigger:hover {
  color: var(--blue);
}

.dropdown-menu {
  position: absolute;
  top: 34px;
  left: 50%;
  z-index: 30;
  display: grid;
  min-width: 230px;
  padding: 10px;
  visibility: hidden;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translate(-50%, 8px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
}

.nav-dropdown.is-open .dropdown-menu {
  visibility: visible;
  opacity: 1;
  transform: translate(-50%, 0);
}

.dropdown-menu a {
  padding: 10px 12px;
  border-radius: 6px;
  color: var(--ink);
  font-size: 14px;
}

.dropdown-menu a:hover {
  color: var(--blue);
  background: rgba(21, 109, 255, 0.08);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 700;
  white-space: nowrap;
}

.header-cta,
.button.primary {
  color: #fff;
  background: linear-gradient(135deg, var(--blue), var(--green));
  box-shadow: 0 12px 28px rgba(21, 109, 255, 0.22);
}

.button.secondary {
  color: var(--blue-dark);
  background: rgba(255, 255, 255, 0.72);
  border-color: rgba(21, 109, 255, 0.2);
}

.button:hover,
.header-cta:hover {
  transform: translateY(-1px);
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
}

.menu-button span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
  border-radius: 999px;
}

.mobile-nav {
  position: fixed;
  top: 76px;
  left: 0;
  right: 0;
  z-index: 19;
  display: none;
  padding: 16px 24px 22px;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.mobile-nav.is-open {
  display: grid;
  gap: 14px;
}

.mobile-course-group {
  display: grid;
  gap: 10px;
  padding-top: 6px;
  border-top: 1px solid var(--line);
}

.mobile-course-group strong {
  color: var(--ink);
  font-size: 14px;
}

.mobile-course-group a {
  padding-left: 12px;
  color: var(--muted);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: clamp(32px, 5vw, 70px);
  align-items: center;
  min-height: 100vh;
  padding: 126px clamp(20px, 5vw, 72px) 64px;
  background:
    radial-gradient(circle at 8% 20%, rgba(21, 109, 255, 0.14), transparent 30%),
    radial-gradient(circle at 84% 14%, rgba(14, 111, 99, 0.14), transparent 32%),
    linear-gradient(180deg, #fbfcfd 0%, #eef4f6 100%);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-family: Arial, sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1,
.section h2,
.contact h2 {
  margin: 0;
  color: var(--ink);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 680px;
  font-size: clamp(44px, 6vw, 78px);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.hero-copy {
  max-width: 620px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.proof-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.proof-strip span {
  padding: 10px 14px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(220, 229, 234, 0.9);
  border-radius: 999px;
  font-size: 14px;
}

.proof-strip strong {
  color: var(--blue-dark);
}

.hero-visual {
  position: relative;
  align-self: stretch;
  min-height: 540px;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.floating-panel {
  position: absolute;
  display: grid;
  gap: 5px;
  max-width: 280px;
  padding: 16px 18px;
  color: #fff;
  background: rgba(7, 58, 140, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  box-shadow: 0 18px 48px rgba(7, 58, 140, 0.25);
  backdrop-filter: blur(14px);
}

.floating-panel span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.floating-panel strong {
  font-size: 16px;
}

.panel-one {
  left: -28px;
  bottom: 76px;
}

.panel-two {
  right: 28px;
  top: 54px;
  background: rgba(14, 111, 99, 0.9);
}

.section {
  padding: 96px clamp(20px, 5vw, 72px);
}

.section-heading {
  max-width: 820px;
  margin: 0 auto 36px;
}

.section-heading h2,
.contact h2 {
  font-size: clamp(30px, 4vw, 48px);
}

.section-heading.split {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 36px;
  max-width: none;
}

.section-heading.split p:last-child {
  max-width: 520px;
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.intro-grid,
.case-grid {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.intro-grid article,
.case-grid article,
.course-card,
.mentor-card,
.contact-form {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 16px 45px rgba(23, 33, 43, 0.06);
}

.intro-grid article {
  padding: 30px;
}

.icon-box {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  color: var(--blue);
  background: rgba(21, 109, 255, 0.08);
  border-radius: 8px;
}

.icon-box svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.intro-grid h3,
.course-card h3,
.case-grid h3,
.process-list h3 {
  margin: 18px 0 10px;
  font-size: 22px;
}

.intro-grid p,
.case-grid p,
.process-list p,
.enterprise-copy p,
.mentor-card p,
.contact p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.courses {
  background: #fff;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.course-card {
  min-height: 300px;
  padding: 26px;
}

.course-card p {
  margin: 0 0 24px;
  color: var(--gold);
  font-family: Arial, sans-serif;
  font-size: 28px;
  font-weight: 700;
}

.course-card ul {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  color: var(--muted);
  list-style: none;
  line-height: 1.7;
}

.course-card li {
  position: relative;
  padding-left: 16px;
}

.course-card li::before {
  position: absolute;
  top: 0.8em;
  left: 0;
  width: 5px;
  height: 5px;
  content: "";
  background: var(--blue);
  border-radius: 50%;
}

.course-card.featured {
  color: #fff;
  background: linear-gradient(145deg, var(--blue-dark), var(--green));
}

.course-card.featured h3,
.course-card.featured p,
.course-card.featured ul {
  color: #fff;
}

.course-card.featured li::before {
  background: #fff;
}

.course-link {
  display: inline-flex;
  align-items: center;
  margin-top: 22px;
  color: var(--blue-dark);
  font-weight: 700;
}

.course-card.featured .course-link {
  color: #fff;
}

.course-link::after {
  margin-left: 8px;
  content: "→";
}

.enterprise {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: 42px;
  align-items: center;
  background: linear-gradient(135deg, #0b2238, #0a3f5a 48%, #0b6259);
  color: #fff;
}

.enterprise h2,
.enterprise .eyebrow {
  color: #fff;
}

.enterprise-copy p {
  margin: 22px 0 28px;
  color: rgba(255, 255, 255, 0.76);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.process-list div {
  min-height: 188px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
}

.process-list span {
  color: rgba(255, 255, 255, 0.55);
  font-family: Arial, sans-serif;
  font-size: 26px;
  font-weight: 700;
}

.process-list h3 {
  color: #fff;
}

.process-list p {
  color: rgba(255, 255, 255, 0.7);
}

.case-grid article {
  padding: 30px;
}

.case-grid strong {
  color: var(--green);
}

.mentor {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.7fr);
  gap: 22px;
  align-items: stretch;
  background: #fff;
}

.mentor-card {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 26px;
  align-items: center;
  padding: 34px;
}

.mentor-mark {
  display: grid;
  width: 92px;
  height: 92px;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--green), var(--blue-dark));
  border-radius: 8px;
  font-size: 46px;
  font-weight: 800;
}

.mentor-card h2 {
  margin-bottom: 14px;
}

.mentor-points {
  display: grid;
  gap: 12px;
}

.mentor-points span {
  display: flex;
  align-items: center;
  min-height: 64px;
  padding: 0 22px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--blue-dark);
  font-weight: 700;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(400px, 0.75fr);
  gap: 48px;
  align-items: start;
  padding: 96px clamp(20px, 5vw, 72px);
  background:
    linear-gradient(rgba(246, 248, 251, 0.9), rgba(246, 248, 251, 0.9)),
    radial-gradient(circle at 20% 10%, rgba(21, 109, 255, 0.16), transparent 30%),
    radial-gradient(circle at 84% 90%, rgba(14, 111, 99, 0.16), transparent 32%);
}

.contact p {
  margin-top: 20px;
  max-width: 680px;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.contact-form input,
.contact-form select {
  width: 100%;
  min-height: 46px;
  padding: 0 12px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 30px clamp(20px, 5vw, 72px);
  color: rgba(255, 255, 255, 0.72);
  background: #101922;
}

.footer p {
  margin: 6px 0 0;
}

.footer div:last-child {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: flex-end;
  font-size: 13px;
}

.subpage-hero {
  padding: 142px clamp(20px, 5vw, 72px) 74px;
  background:
    radial-gradient(circle at 12% 16%, rgba(21, 109, 255, 0.14), transparent 28%),
    radial-gradient(circle at 86% 12%, rgba(14, 111, 99, 0.12), transparent 30%),
    linear-gradient(180deg, #fbfcfd 0%, #eef4f6 100%);
}

.subpage-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 0.65fr);
  gap: 42px;
  align-items: center;
}

.subpage-hero h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(40px, 5vw, 68px);
  line-height: 1.12;
}

.subpage-hero p {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.9;
}

.subpage-visual {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.subpage-visual img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

.landing-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(360px, 0.55fr);
  gap: 28px;
  align-items: start;
}

.landing-panel,
.team-member,
.agenda-card,
.outcome-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 16px 45px rgba(23, 33, 43, 0.06);
}

.landing-panel {
  padding: 30px;
}

.landing-panel h2,
.team-member h3,
.agenda-card h3,
.outcome-card h3 {
  margin: 0 0 14px;
  color: var(--ink);
}

.landing-panel p,
.team-member p,
.agenda-card p,
.outcome-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.agenda-list,
.outcome-list {
  display: grid;
  gap: 16px;
}

.agenda-card,
.outcome-card,
.team-member {
  padding: 26px;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.team-avatar {
  display: grid;
  width: 72px;
  height: 72px;
  margin-bottom: 18px;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--green), var(--blue-dark));
  border-radius: 8px;
  font-size: 32px;
  font-weight: 800;
}

.course-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.course-meta span {
  padding: 10px 13px;
  color: var(--blue-dark);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
}

@media (max-width: 1180px) {
  .course-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 470px;
  }
}

@media (max-width: 900px) {
  .nav,
  .header-cta {
    display: none;
  }

  .menu-button {
    display: block;
  }

  .hero {
    padding-top: 116px;
  }

  .hero-visual {
    min-height: 360px;
  }

  .floating-panel {
    position: static;
    max-width: none;
    margin-top: 12px;
  }

  .intro-grid,
  .case-grid,
  .enterprise,
  .mentor,
  .subpage-hero-inner,
  .landing-grid,
  .contact,
  .section-heading.split {
    grid-template-columns: 1fr;
  }

  .section-heading.split {
    display: grid;
    align-items: start;
  }

  .process-list {
    grid-template-columns: 1fr;
  }

  .team-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .site-header {
    height: 68px;
    padding-inline: 16px;
  }

  .mobile-nav {
    top: 68px;
  }

  .brand {
    min-width: 0;
  }

  .brand-text small {
    display: none;
  }

  .hero,
  .section,
  .contact,
  .subpage-hero {
    padding-inline: 16px;
  }

  .hero {
    padding-top: 104px;
  }

  .proof-strip {
    display: grid;
  }

  .course-grid {
    grid-template-columns: 1fr;
  }

  .course-card {
    min-height: auto;
  }

  .mentor-card {
    grid-template-columns: 1fr;
  }

  .footer {
    display: grid;
  }

  .footer div:last-child {
    justify-content: start;
  }

  .subpage-hero {
    padding-top: 104px;
    padding-bottom: 52px;
  }

  .subpage-visual img {
    height: 260px;
  }
}

/* ── 讲师团队页 ─────────────────────────────────────── */

.teacher-banner {
  padding: 120px clamp(20px, 5vw, 72px) 64px;
  background:
    radial-gradient(circle at 12% 30%, rgba(21, 109, 255, 0.18), transparent 35%),
    radial-gradient(circle at 88% 12%, rgba(14, 111, 99, 0.20), transparent 32%),
    linear-gradient(145deg, #0b1e34 0%, #0a3650 45%, #0b5548 100%);
  color: #fff;
  text-align: center;
}

.teacher-banner-inner {
  max-width: 820px;
  margin: 0 auto;
}

.teacher-banner .eyebrow {
  color: rgba(255, 255, 255, 0.55);
}

.teacher-banner h1 {
  margin: 0;
  color: #fff;
  font-size: clamp(38px, 5.5vw, 68px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
}

.teacher-banner-sub {
  max-width: 640px;
  margin: 24px auto 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.9;
}

.teacher-meta-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

.teacher-meta-strip span {
  padding: 10px 22px;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  backdrop-filter: blur(8px);
}

.mentor-section {
  background: var(--bg);
}

.mentor-roster {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.mentor-item {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  padding: 36px 38px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 16px 48px rgba(23, 33, 43, 0.07);
  transition: box-shadow 0.22s ease, transform 0.22s ease;
}

.mentor-item:hover {
  box-shadow: 0 28px 70px rgba(23, 33, 43, 0.13);
  transform: translateY(-3px);
}

.mentor-avatar-lg {
  display: grid;
  width: 100px;
  height: 100px;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--green), var(--blue-dark));
  border-radius: 12px;
  font-size: 46px;
  font-weight: 800;
  flex-shrink: 0;
}

.mentor-item-body h3 {
  margin: 0 0 6px;
  font-size: 24px;
  color: var(--ink);
  line-height: 1.2;
}

.mentor-item-role {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.mentor-item-body p:last-child {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
  font-size: 15px;
}

.teacher-method {
  background: #fff;
}

@media (max-width: 900px) {
  .mentor-roster {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .teacher-banner {
    padding-top: 108px;
    padding-inline: 16px;
    text-align: left;
  }

  .teacher-banner-inner {
    text-align: left;
  }

  .teacher-banner-sub {
    margin-left: 0;
  }

  .teacher-meta-strip {
    justify-content: flex-start;
  }

  .mentor-item {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 18px;
    padding: 24px;
  }

  .mentor-avatar-lg {
    width: 72px;
    height: 72px;
    font-size: 32px;
    border-radius: 8px;
  }
}

/* ── 雷赞简介页 ─────────────────────────────────────── */

.about-hero {
  padding: 130px clamp(20px, 5vw, 72px) 0;
  background:
    radial-gradient(circle at 6% 25%, rgba(21, 109, 255, 0.2), transparent 32%),
    radial-gradient(circle at 90% 10%, rgba(14, 111, 99, 0.22), transparent 30%),
    radial-gradient(circle at 55% 80%, rgba(7, 58, 140, 0.12), transparent 40%),
    linear-gradient(155deg, #090f1a 0%, #0b2238 40%, #0a4040 100%);
  color: #fff;
}

.about-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.about-hero .eyebrow {
  color: rgba(255, 255, 255, 0.5);
}

.about-hero-text h1 {
  margin: 0;
  font-size: clamp(54px, 8vw, 100px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: #fff;
  background: linear-gradient(135deg, #fff 40%, rgba(255,255,255,0.65));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-hero-lead {
  max-width: 680px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: clamp(17px, 1.7vw, 21px);
  line-height: 1.9;
}

.about-numbers {
  display: flex;
  align-items: stretch;
  margin-top: 64px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.about-number-item {
  flex: 1;
  display: grid;
  gap: 6px;
  padding: 32px 0 36px;
}

.about-number-item strong {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  color: #fff;
  line-height: 1;
  letter-spacing: -0.02em;
}

.about-number-item span {
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
  letter-spacing: 0.04em;
}

.about-number-divider {
  width: 1px;
  margin: 24px 40px;
  background: rgba(255, 255, 255, 0.12);
}

/* ② Brand story */

.about-story {
  background: var(--bg);
}

.about-story-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.75fr);
  gap: 56px;
  align-items: start;
}

.about-section-title {
  margin: 0 0 28px;
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.15;
}

.about-body {
  color: var(--muted);
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 2;
}

.about-body p {
  margin: 0 0 1.5em;
}

.about-body p:last-child {
  margin-bottom: 0;
}

.about-beliefs {
  padding: 36px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 16px 48px rgba(23, 33, 43, 0.07);
  display: grid;
  gap: 0;
}

.about-beliefs .eyebrow {
  margin-bottom: 22px;
}

.about-belief-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.about-belief-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.about-belief-num {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: var(--blue);
  background: rgba(21, 109, 255, 0.09);
  border-radius: 6px;
  font-family: Arial, sans-serif;
  font-size: 13px;
  font-weight: 800;
}

.about-belief-item h4 {
  margin: 0 0 6px;
  font-size: 16px;
  color: var(--ink);
}

.about-belief-item p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

/* ③ Values */

.about-values-section {
  padding: 96px clamp(20px, 5vw, 72px);
  background: linear-gradient(150deg, #0b1e34 0%, #0a3650 50%, #0b5040 100%);
  color: #fff;
}

.about-values-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.about-values-head {
  margin-bottom: 48px;
}

.about-values-head h2 {
  margin: 0;
  color: #fff;
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 800;
}

.about-values-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.about-value-card {
  padding: 36px 30px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  transition: background 0.2s, transform 0.2s;
}

.about-value-card:hover {
  background: rgba(255, 255, 255, 0.11);
  transform: translateY(-3px);
}

.about-value-icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  color: #fff;
  background: rgba(21, 109, 255, 0.35);
  border-radius: 10px;
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 22px;
}

.about-value-card h3 {
  margin: 0 0 12px;
  color: #fff;
  font-size: 20px;
}

.about-value-card p {
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: 14px;
  line-height: 1.85;
}

/* ④ Founder */

.about-founder-section {
  background: var(--surface);
}

.about-founder-layout {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 52px;
  align-items: start;
  max-width: 900px;
  margin: 0 auto;
}

.about-founder-avatar-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.about-founder-avatar {
  display: grid;
  place-items: center;
  width: 160px;
  height: 160px;
  color: #fff;
  background: linear-gradient(135deg, var(--green), var(--blue-dark));
  border-radius: 16px;
  font-size: 78px;
  font-weight: 900;
  box-shadow: 0 20px 50px rgba(14, 111, 99, 0.3);
}

.about-founder-badge {
  padding: 6px 16px;
  color: var(--green);
  background: rgba(14, 111, 99, 0.1);
  border: 1px solid rgba(14, 111, 99, 0.25);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.about-founder-text .eyebrow {
  margin-bottom: 6px;
}

.about-founder-text h2 {
  margin: 0 0 4px;
  font-size: clamp(30px, 3.5vw, 42px);
}

.about-founder-role {
  margin: 0 0 20px;
  color: var(--green);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.about-founder-text > p:not(.eyebrow):not(.about-founder-role) {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}

.about-founder-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.about-founder-tags span {
  padding: 8px 16px;
  color: var(--blue-dark);
  background: rgba(21, 109, 255, 0.07);
  border: 1px solid rgba(21, 109, 255, 0.18);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
}

/* ⑤ CTA */

.about-cta {
  padding: 96px clamp(20px, 5vw, 72px);
  background:
    linear-gradient(rgba(246, 248, 251, 0.92), rgba(246, 248, 251, 0.92)),
    radial-gradient(circle at 18% 12%, rgba(21, 109, 255, 0.18), transparent 32%),
    radial-gradient(circle at 82% 88%, rgba(14, 111, 99, 0.18), transparent 32%);
  text-align: center;
}

.about-cta-inner {
  max-width: 660px;
  margin: 0 auto;
}

.about-cta h2 {
  margin: 0 0 16px;
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.25;
}

.about-cta p {
  margin: 0 0 36px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.about-cta .hero-actions {
  justify-content: center;
  margin-top: 0;
}

/* Responsive */

@media (max-width: 1080px) {
  .about-values-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .about-story-layout {
    grid-template-columns: 1fr;
  }

  .about-founder-layout {
    grid-template-columns: 1fr;
  }

  .about-founder-avatar-wrap {
    flex-direction: row;
    align-items: center;
  }

  .about-number-divider {
    margin: 16px 20px;
  }
}

@media (max-width: 680px) {
  .about-hero {
    padding-inline: 16px;
  }

  .about-numbers {
    flex-wrap: wrap;
    margin-top: 40px;
  }

  .about-number-item {
    flex: 0 0 50%;
    padding: 24px 0 28px;
  }

  .about-number-divider {
    display: none;
  }

  .about-values-grid {
    grid-template-columns: 1fr;
  }

  .about-values-section {
    padding-inline: 16px;
  }

  .about-founder-layout {
    grid-template-columns: 1fr;
  }

  .about-founder-avatar-wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  .about-cta {
    padding-inline: 16px;
  }
}

/* ── 联系我们页 ─────────────────────────────────────── */

.contact-hero {
  padding: 130px clamp(20px, 5vw, 72px) 72px;
  background:
    radial-gradient(circle at 8% 30%, rgba(21, 109, 255, 0.22), transparent 34%),
    radial-gradient(circle at 92% 8%, rgba(14, 111, 99, 0.24), transparent 30%),
    linear-gradient(150deg, #090f1a 0%, #0b2238 45%, #0a4040 100%);
  color: #fff;
}

.contact-hero-inner {
  max-width: 900px;
}

.contact-hero .eyebrow {
  color: rgba(255, 255, 255, 0.5);
}

.contact-hero h1 {
  margin: 0;
  font-size: clamp(42px, 6vw, 80px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: #fff;
}

.contact-hero-sub {
  max-width: 600px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.65);
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.9;
}

.contact-method-strip {
  display: flex;
  align-items: center;
  gap: 0;
  margin-top: 52px;
  padding: 28px 36px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 14px;
  backdrop-filter: blur(12px);
}

.contact-method-item {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
}

.contact-method-item svg {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  color: rgba(255, 255, 255, 0.7);
}

.contact-method-item strong {
  display: block;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
}

.contact-method-item span {
  display: block;
  margin-top: 3px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
}

.contact-method-divider {
  width: 1px;
  height: 44px;
  margin: 0 36px;
  background: rgba(255, 255, 255, 0.14);
  flex-shrink: 0;
}

/* Main layout */

.contact-main-section {
  background: var(--bg);
}

.contact-main-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(400px, 1fr);
  gap: 52px;
  align-items: start;
}

/* Left col */

.contact-info-col .eyebrow {
  margin-bottom: 8px;
}

.contact-info-title {
  margin: 0 0 32px;
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.2;
}

.contact-scenario-list {
  display: grid;
  gap: 4px;
}

.contact-scenario-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 20px;
  border-radius: 10px;
  transition: background 0.18s;
}

.contact-scenario-item:hover {
  background: rgba(21, 109, 255, 0.05);
}

.contact-scenario-icon {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue-dark), var(--green));
  border-radius: 8px;
  font-size: 18px;
  font-weight: 800;
}

.contact-scenario-item h4 {
  margin: 0 0 6px;
  font-size: 16px;
  color: var(--ink);
}

.contact-scenario-item p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.contact-promise {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 28px;
  padding: 16px 20px;
  color: var(--green);
  background: rgba(14, 111, 99, 0.07);
  border: 1px solid rgba(14, 111, 99, 0.2);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.6;
}

.contact-promise svg {
  flex-shrink: 0;
  margin-top: 1px;
}

/* Right col — form card */

.contact-form-col {
  position: sticky;
  top: 96px;
}

.contact-form-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(23, 33, 43, 0.1);
  overflow: hidden;
}

.contact-form-card-head {
  padding: 28px 32px 24px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(135deg, #f0f5ff, #eef4f6);
}

.contact-form-card-head h3 {
  margin: 0 0 6px;
  font-size: 20px;
  color: var(--ink);
}

.contact-form-card-head p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.contact-form-inner {
  display: grid;
  gap: 18px;
  padding: 28px 32px;
}

.contact-form-inner label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.contact-form-inner em {
  font-style: normal;
  color: var(--muted);
  font-weight: 400;
}

.contact-form-inner input,
.contact-form-inner select,
.contact-form-inner textarea {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  font-size: 15px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.contact-form-inner textarea {
  min-height: auto;
  padding: 12px 14px;
  resize: vertical;
}

.contact-form-inner input:focus,
.contact-form-inner select:focus,
.contact-form-inner textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(21, 109, 255, 0.12);
}

.contact-submit {
  width: 100%;
  min-height: 52px;
  font-size: 16px;
  margin-top: 4px;
}

/* FAQ */

.contact-faq-section {
  background: #fff;
}

.contact-faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.contact-faq-item {
  padding: 28px 30px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.contact-faq-item h4 {
  margin: 0 0 10px;
  font-size: 16px;
  color: var(--blue-dark);
}

.contact-faq-item p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

/* Responsive */

@media (max-width: 1000px) {
  .contact-main-layout {
    grid-template-columns: 1fr;
  }

  .contact-form-col {
    position: static;
  }
}

@media (max-width: 680px) {
  .contact-hero {
    padding-inline: 16px;
    padding-bottom: 48px;
  }

  .contact-method-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
    margin-top: 36px;
  }

  .contact-method-divider {
    display: none;
  }

  .contact-faq-grid {
    grid-template-columns: 1fr;
  }

  .contact-form-card-head,
  .contact-form-inner {
    padding-inline: 20px;
  }
}

/* ── 课程落地页 ─────────────────────────────────────── */

/* Hero */
.course-hero {
  padding: 120px clamp(20px, 5vw, 72px) 0;
  background:
    radial-gradient(circle at 5% 20%, rgba(21, 109, 255, 0.24), transparent 32%),
    radial-gradient(circle at 94% 8%, rgba(14, 111, 99, 0.26), transparent 28%),
    radial-gradient(circle at 60% 85%, rgba(7, 58, 140, 0.14), transparent 36%),
    linear-gradient(155deg, #080e1b 0%, #0b2035 42%, #0a3d38 100%);
  color: #fff;
}

.course-hero-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) 340px;
  gap: 48px;
  align-items: end;
}

.course-hero .eyebrow { color: rgba(255,255,255,.48); }

.course-hero h1 {
  margin: 0;
  font-size: clamp(44px, 6.5vw, 88px);
  font-weight: 900;
  letter-spacing: -.025em;
  line-height: 1.06;
  color: #fff;
}

.course-hero-desc {
  max-width: 620px;
  margin: 22px 0 0;
  color: rgba(255,255,255,.68);
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.9;
}

.course-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.course-hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  color: rgba(255,255,255,.82);
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  backdrop-filter: blur(8px);
}

.course-hero-meta svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  opacity: .75;
}

.course-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
  padding-bottom: 60px;
}

/* Right card */
.course-hero-card {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 14px;
  overflow: hidden;
  backdrop-filter: blur(18px);
  align-self: end;
  margin-bottom: 0;
  transform: translateY(28px);
}

.course-card-top {
  padding: 28px 28px 24px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.course-quick-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.course-quick-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 14px;
}

.course-quick-list li span {
  color: rgba(255,255,255,.5);
  white-space: nowrap;
}

.course-quick-list li strong {
  color: #fff;
  text-align: right;
}

.course-card-bottom {
  padding: 24px 28px;
}

.course-card-btn {
  width: 100%;
  justify-content: center;
  min-height: 50px;
}

.course-card-note {
  margin: 12px 0 0;
  color: rgba(255,255,255,.45);
  font-size: 12px;
  line-height: 1.6;
  text-align: center;
}

/* Pillars strip */
.course-pillars {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding-top: 52px;
}

.course-pillars-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: stretch;
  padding: 0 clamp(20px, 5vw, 72px) 48px;
}

.course-pillar-item {
  flex: 1;
  padding: 0 12px;
}

.course-pillar-icon {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--blue);
  font-family: Arial, sans-serif;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .1em;
}

.course-pillar-item h3 {
  margin: 0 0 10px;
  font-size: 20px;
  color: var(--ink);
}

.course-pillar-item p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.course-pillar-divider {
  width: 1px;
  margin: 0 24px;
  background: var(--line);
  flex-shrink: 0;
}

/* Audience */
.course-audience-section {
  background: var(--bg);
}

.course-two-col {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.75fr);
  gap: 52px;
  align-items: start;
}

.course-audience-left .eyebrow { margin-bottom: 8px; }

.course-audience-left h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 800;
  color: var(--ink);
}

.course-section-lead {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.course-audience-list { display: grid; gap: 4px; }

.course-audience-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 8px;
  transition: background .18s;
}

.course-audience-item:hover { background: rgba(21,109,255,.05); }

.course-check-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--green);
}

.course-audience-item p {
  margin: 0;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.6;
}

.course-audience-right {
  padding: 32px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 12px 36px rgba(23,33,43,.06);
}

.course-audience-right h3 {
  margin: 0 0 20px;
  font-size: 18px;
  color: var(--ink);
}

.course-not-list { display: grid; gap: 4px; }

.course-not-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 8px;
}

.course-x-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: #e05252;
}

.course-not-item p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

/* Curriculum */
.course-curriculum-section {
  background: #fff;
}

.course-curriculum-layout {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
}

/* CMS content rich-text area */
.course-body {
  min-width: 0;
}

.course-body h2 {
  margin: 36px 0 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--line);
  font-size: 22px;
  color: var(--ink);
}

.course-body h2:first-child { margin-top: 0; }

.course-body h3 {
  margin: 28px 0 12px;
  font-size: 18px;
  color: var(--blue-dark);
}

.course-body p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}

.course-body ul,
.course-body ol {
  margin: 0 0 20px;
  padding-left: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.course-body li {
  position: relative;
  padding: 12px 16px 12px 44px;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 15px;
  line-height: 1.7;
}

.course-body ul li::before {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  content: "";
  width: 7px;
  height: 7px;
  background: var(--blue);
  border-radius: 50%;
}

.course-body ol { counter-reset: item; }

.course-body ol li {
  counter-increment: item;
}

.course-body ol li::before {
  position: absolute;
  left: 14px;
  top: 12px;
  content: counter(item);
  color: var(--blue);
  font-family: Arial, sans-serif;
  font-size: 12px;
  font-weight: 800;
}

/* Course modules (used when admin formats content with h2+ul blocks) */
.course-module {
  margin-bottom: 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

.course-module-head {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: linear-gradient(135deg, #f0f5ff, #eef6f5);
  border-bottom: 1px solid var(--line);
}

.course-module-num {
  flex-shrink: 0;
  padding: 4px 12px;
  color: var(--blue);
  background: rgba(21,109,255,.1);
  border-radius: 999px;
  font-family: Arial, sans-serif;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
}

.course-module-head h3 {
  margin: 0;
  font-size: 18px;
  color: var(--ink);
}

.course-module ul {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 12px 24px 16px;
  list-style: none;
}

.course-module li {
  padding: 10px 0 10px 20px;
  position: relative;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
  border-bottom: 1px dashed var(--line);
  background: none;
  border-radius: 0;
}

.course-module li:last-child { border-bottom: none; }

.course-module li::before {
  position: absolute;
  left: 4px;
  top: 18px;
  content: "";
  width: 6px;
  height: 6px;
  background: var(--blue);
  border-radius: 50%;
}

/* Sidebar */
.course-sidebar {
  position: sticky;
  top: 96px;
  display: grid;
  gap: 16px;
}

.course-sidebar-card {
  padding: 26px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 12px 36px rgba(23,33,43,.07);
}

.course-sidebar-card h4 {
  margin: 0 0 18px;
  font-size: 16px;
  color: var(--ink);
}

.course-includes {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.course-includes li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.course-includes svg {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin-top: 2px;
  color: var(--green);
}

.course-sidebar-cta {
  padding: 22px 24px;
  background: linear-gradient(135deg, #f0f5ff, #eef6f5);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.course-sidebar-cta p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

/* Outcomes */
.course-outcomes-section {
  padding: 96px clamp(20px, 5vw, 72px);
  background: linear-gradient(150deg, #0b1e34 0%, #0a3650 50%, #0b5040 100%);
}

.course-outcomes-section .section-heading { margin-bottom: 44px; }
.course-outcomes-section .eyebrow { color: rgba(255,255,255,.5); }
.course-outcomes-section h2 { color: #fff; }

.course-outcomes-grid {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.course-outcome-card {
  padding: 36px 32px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 12px;
  transition: background .2s, transform .2s;
}

.course-outcome-card:hover {
  background: rgba(255,255,255,.11);
  transform: translateY(-3px);
}

.course-outcome-num {
  display: block;
  margin-bottom: 18px;
  color: rgba(255,255,255,.35);
  font-family: Arial, sans-serif;
  font-size: 38px;
  font-weight: 900;
  line-height: 1;
}

.course-outcome-card h3 {
  margin: 0 0 12px;
  color: #fff;
  font-size: 18px;
  line-height: 1.4;
}

.course-outcome-card p {
  margin: 0;
  color: rgba(255,255,255,.6);
  font-size: 14px;
  line-height: 1.8;
}

/* Instructor */
.course-instructor-section {
  background: var(--surface);
}

.course-instructor-layout {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 52px;
  align-items: start;
}

.course-instructor-left .eyebrow { margin-bottom: 8px; }

.course-instructor-left h2 {
  margin: 0 0 4px;
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 800;
  color: var(--ink);
}

.course-instructor-role {
  margin: 0 0 20px;
  color: var(--green);
  font-size: 14px;
  font-weight: 700;
}

.course-instructor-bio {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}

.course-instructor-avatar {
  display: grid;
  place-items: center;
  width: 180px;
  height: 180px;
  color: #fff;
  background: linear-gradient(135deg, var(--green), var(--blue-dark));
  border-radius: 16px;
  font-size: 88px;
  font-weight: 900;
  box-shadow: 0 20px 50px rgba(14,111,99,.28);
  margin: 0 auto;
}

.course-instructor-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 20px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}

.course-instructor-stats div {
  display: grid;
  gap: 4px;
  padding: 16px 10px;
  text-align: center;
  background: var(--surface);
}

.course-instructor-stats strong {
  display: block;
  font-size: 22px;
  font-weight: 800;
  color: var(--blue-dark);
  line-height: 1;
}

.course-instructor-stats span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.4;
}

/* FAQ */
.course-faq-section {
  background: var(--bg);
}

.course-faq-grid {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.course-faq-item {
  padding: 28px 30px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(23,33,43,.05);
}

.course-faq-item h4 {
  margin: 0 0 10px;
  font-size: 16px;
  color: var(--blue-dark);
}

.course-faq-item p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

/* Enroll */
.course-enroll-section {
  padding: 96px clamp(20px, 5vw, 72px);
  background:
    linear-gradient(rgba(246,248,251,.9), rgba(246,248,251,.9)),
    radial-gradient(circle at 15% 10%, rgba(21,109,255,.18), transparent 32%),
    radial-gradient(circle at 85% 90%, rgba(14,111,99,.18), transparent 32%);
}

.course-enroll-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(400px, 0.85fr);
  gap: 56px;
  align-items: start;
}

.course-enroll-text .eyebrow { margin-bottom: 10px; }

.course-enroll-text h2 {
  margin: 0 0 16px;
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.2;
}

.course-enroll-text p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.course-enroll-form {
  display: grid;
  gap: 18px;
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(23,33,43,.1);
}

.course-enroll-form label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.course-enroll-form em { font-style: normal; color: var(--muted); font-weight: 400; }

.course-enroll-form input,
.course-enroll-form select,
.course-enroll-form textarea {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  font-size: 15px;
  transition: border-color .15s, box-shadow .15s;
}

.course-enroll-form textarea { min-height: auto; padding: 12px 14px; resize: vertical; }

.course-enroll-form input:focus,
.course-enroll-form select:focus,
.course-enroll-form textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(21,109,255,.12);
}

.course-enroll-btn { width: 100%; min-height: 52px; font-size: 16px; margin-top: 4px; }

/* Responsive */
@media (max-width: 1100px) {
  .course-hero-inner { grid-template-columns: 1fr; }
  .course-hero-card { transform: none; margin-bottom: 0; max-width: 480px; }
  .course-hero-actions { padding-bottom: 48px; }
  .course-curriculum-layout { grid-template-columns: 1fr; }
  .course-sidebar { position: static; }
}

@media (max-width: 900px) {
  .course-two-col { grid-template-columns: 1fr; }
  .course-outcomes-grid { grid-template-columns: 1fr; }
  .course-instructor-layout { grid-template-columns: 1fr; }
  .course-enroll-inner { grid-template-columns: 1fr; }
  .course-pillars-inner { flex-direction: column; gap: 28px; }
  .course-pillar-divider { width: 100%; height: 1px; margin: 0; }
  .course-faq-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .course-hero { padding-inline: 16px; }
  .course-pillars-inner { padding-inline: 16px; }
  .course-outcomes-section { padding-inline: 16px; }
  .course-enroll-section { padding-inline: 16px; }
  .course-enroll-form { padding: 22px 18px; }
}

/* course outcome cms field */
.course-outcome-cms {
  color: rgba(255,255,255,.75);
  font-size: 16px;
  line-height: 1.9;
}

.course-outcome-cms p { margin: 0 0 14px; }
.course-outcome-cms ul { margin: 0 0 16px; padding: 0; list-style: none; display: grid; gap: 10px; }
.course-outcome-cms li { position: relative; padding: 12px 16px 12px 42px; color: rgba(255,255,255,.72); background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); border-radius: 8px; }
.course-outcome-cms li::before { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); content: ""; width: 7px; height: 7px; background: rgba(255,255,255,.5); border-radius: 50%; }

/* product course list grid */
.product-course-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.product-course-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 12px 36px rgba(23,33,43,.07);
  transition: box-shadow .22s, transform .22s;
}

.product-course-card:hover {
  box-shadow: 0 24px 60px rgba(23,33,43,.13);
  transform: translateY(-3px);
}

.product-course-card-top {
  position: relative;
  min-height: 80px;
  padding: 24px 24px 0;
  background: linear-gradient(135deg, #f0f5ff, #eef6f5);
}

.product-course-num {
  display: inline-block;
  color: var(--gold);
  font-family: Arial, sans-serif;
  font-size: 36px;
  font-weight: 800;
  line-height: 1;
}

.product-course-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  margin-top: 14px;
  border-radius: 6px 6px 0 0;
}

.product-course-card-body {
  flex: 1;
  padding: 20px 24px;
}

.product-course-card-body h3 { margin: 0 0 10px; font-size: 19px; color: var(--ink); line-height: 1.3; }
.product-course-card-body p { margin: 0 0 14px; color: var(--muted); font-size: 14px; line-height: 1.75; }

.product-course-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.product-course-tags span { padding: 4px 12px; color: var(--blue-dark); background: rgba(21,109,255,.08); border: 1px solid rgba(21,109,255,.16); border-radius: 999px; font-size: 12px; font-weight: 700; }

.product-course-card-foot { padding: 16px 24px 22px; border-top: 1px solid var(--line); }
.product-course-link { color: var(--blue); font-size: 14px; font-weight: 700; }
.product-course-link:hover { color: var(--blue-dark); }

@media (max-width: 900px) { .product-course-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .product-course-grid { grid-template-columns: 1fr; } }

/* ========================================
   案例页面 (Case List Page)
   ======================================== */

/* Hero */
.case-hero {
  padding: 140px 24px 80px;
  background: linear-gradient(135deg, #0f1419 0%, #1a2332 100%);
  text-align: center;
}

.case-hero-inner {
  max-width: 880px;
  margin: 0 auto;
}

.case-hero .eyebrow {
  color: rgba(255, 255, 255, 0.55);
}

.case-hero h1 {
  margin: 0;
  color: #fff;
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.case-hero-lead {
  max-width: 740px;
  margin: 28px auto 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.85;
}

.case-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-top: 48px;
}

.case-stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 90px;
}

.case-stat-item strong {
  color: #fff;
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.01em;
}

.case-stat-item span {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.case-stat-divider {
  width: 1px;
  height: 36px;
  background: rgba(255, 255, 255, 0.2);
}

/* Filter */
.case-filter-section {
  padding: 24px 24px 0;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.case-filter-inner {
  max-width: 1400px;
  margin: 0 auto;
}

.case-filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.case-filter-tab {
  padding: 10px 20px;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.case-filter-tab:hover {
  color: var(--ink);
  border-color: var(--blue);
  background: rgba(21, 109, 255, 0.04);
}

.case-filter-tab.active {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

/* Case List */
.case-list-section {
  background: var(--bg);
}

.case-list-grid {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.case-list-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 12px 36px rgba(23, 33, 43, 0.06);
  transition: box-shadow 0.22s ease, transform 0.22s ease;
}

.case-list-card:hover {
  box-shadow: 0 24px 60px rgba(23, 33, 43, 0.12);
  transform: translateY(-4px);
}

.case-list-card-header {
  position: relative;
}

.case-list-card-img {
  width: 100%;
  height: 220px;
  overflow: hidden;
  background: linear-gradient(135deg, #f0f5ff, #eef6f5);
}

.case-list-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.case-list-card:hover .case-list-card-img img {
  transform: scale(1.05);
}

.case-list-card-img-placeholder {
  display: grid;
  place-items: center;
  color: rgba(21, 109, 255, 0.3);
}

.case-list-card-img-placeholder svg {
  width: 64px;
  height: 64px;
}

.case-list-card-meta {
  position: absolute;
  top: 16px;
  left: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.case-tag {
  padding: 6px 14px;
  color: #fff;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  backdrop-filter: blur(8px);
}

.case-tag-industry {
  background: rgba(21, 109, 255, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.case-tag-type {
  background: rgba(23, 33, 43, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.case-list-card-body {
  flex: 1;
  padding: 28px 28px 20px;
}

.case-list-company {
  margin: 0 0 8px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.case-list-card-body h3 {
  margin: 0 0 14px;
  color: var(--ink);
  font-size: 21px;
  font-weight: 700;
  line-height: 1.35;
}

.case-list-desc {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.case-list-result {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  color: var(--ink);
  background: rgba(21, 109, 255, 0.06);
  border-left: 3px solid var(--blue);
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
}

.case-list-result svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--blue);
}

.case-list-card-footer {
  padding: 18px 28px 24px;
  border-top: 1px solid var(--line);
}

.case-list-link {
  color: var(--blue);
  font-size: 15px;
  font-weight: 700;
  transition: color 0.2s ease;
}

.case-list-link:hover {
  color: var(--blue-dark);
}

/* Case Outcomes Section */
.case-outcomes-section {
  background: var(--surface);
}

.case-outcomes-grid {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.case-outcomes-grid article {
  padding: 36px 32px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.case-outcome-icon {
  display: grid;
  width: 56px;
  height: 56px;
  place-items: center;
  color: var(--blue);
  background: rgba(21, 109, 255, 0.08);
  border-radius: 10px;
  margin-bottom: 20px;
}

.case-outcome-icon svg {
  width: 28px;
  height: 28px;
}

.case-outcomes-grid h3 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
}

.case-outcomes-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

/* Responsive */
@media (max-width: 1000px) {
  .case-list-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .case-outcomes-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
}

@media (max-width: 680px) {
  .case-hero {
    padding: 108px 16px 60px;
    text-align: left;
  }
  
  .case-hero-inner {
    text-align: left;
  }
  
  .case-hero h1 {
    text-align: left;
  }
  
  .case-hero-lead {
    margin-left: 0;
    text-align: left;
  }
  
  .case-stats {
    justify-content: flex-start;
    gap: 16px;
    margin-top: 36px;
  }
  
  .case-stat-item {
    min-width: 70px;
  }
  
  .case-stat-divider {
    height: 28px;
  }
  
  .case-filter-section {
    padding: 16px 16px 0;
  }
  
  .case-filter-tabs {
    gap: 8px;
  }
  
  .case-filter-tab {
    padding: 8px 16px;
    font-size: 13px;
  }
  
  .case-list-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .case-list-card-img {
    height: 180px;
  }
  
  .case-list-card-body {
    padding: 22px 22px 16px;
  }
  
  .case-list-card-body h3 {
    font-size: 19px;
  }
  
  .case-list-card-footer {
    padding: 14px 22px 20px;
  }
  
  .case-outcomes-grid article {
    padding: 28px 24px;
  }
}

/* ========================================
   案例详情页 (Case Detail Page)
   ======================================== */

.case-view-hero {
  padding: 120px 24px 80px;
  background: linear-gradient(135deg, #f8fafb 0%, #ffffff 100%);
  border-bottom: 1px solid var(--line);
}

.case-view-hero-inner {
  max-width: 1400px;
  margin: 0 auto;
}

.case-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 32px;
  color: var(--muted);
  font-size: 14px;
}

.case-breadcrumb a { color: var(--muted); transition: color 0.2s ease; }
.case-breadcrumb a:hover { color: var(--blue); }
.case-breadcrumb span { color: var(--line); }

.case-view-hero-content {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: 64px;
  align-items: center;
}

.case-view-company {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.case-view-hero h1 {
  margin: 0 0 20px;
  color: var(--ink);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.case-view-intro {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.8;
}

.case-view-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }

.case-view-tag {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.case-view-tag-industry { color: #fff; background: var(--blue); }
.case-view-tag-type { color: var(--ink); background: rgba(23, 33, 43, 0.08); border: 1px solid var(--line); }

.case-view-date { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 14px; }
.case-view-date svg { width: 16px; height: 16px; }

.case-view-hero-img {
  width: 100%;
  height: 380px;
  overflow: hidden;
  background: linear-gradient(135deg, #f0f5ff, #eef6f5);
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(23, 33, 43, 0.12);
}

.case-view-hero-img img { width: 100%; height: 100%; object-fit: cover; }

.case-view-highlight { padding: 48px 24px; background: var(--bg); }
.case-view-highlight-inner { max-width: 1400px; margin: 0 auto; }

.case-view-highlight-card {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 32px 36px;
  background: linear-gradient(135deg, rgba(21, 109, 255, 0.06), rgba(21, 109, 255, 0.02));
  border: 2px solid var(--blue);
  border-radius: 12px;
}

.case-view-highlight-icon {
  display: grid;
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  place-items: center;
  color: #fff;
  background: var(--blue);
  border-radius: 10px;
}

.case-view-highlight-icon svg { width: 28px; height: 28px; }
.case-view-highlight-card h3 { margin: 0 0 8px; color: var(--ink); font-size: 20px; font-weight: 700; }
.case-view-highlight-card p { margin: 0; color: var(--text); font-size: 17px; line-height: 1.7; }

.case-view-article { padding: 64px 24px; background: var(--bg); }

.case-view-article-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}

.case-view-sidebar { position: sticky; top: 100px; display: flex; flex-direction: column; gap: 24px; }

.case-view-sidebar-card {
  padding: 28px 26px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 12px 36px rgba(23, 33, 43, 0.05);
}

.case-view-sidebar-card h4 { margin: 0 0 20px; color: var(--ink); font-size: 18px; font-weight: 700; }

.case-view-info-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }

.case-view-info-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.case-view-info-list li:last-child { padding-bottom: 0; border-bottom: none; }
.case-info-label { color: var(--muted); font-size: 14px; font-weight: 600; }
.case-info-value { color: var(--ink); font-size: 15px; font-weight: 600; }

.case-view-sidebar-cta {
  padding: 28px 26px;
  background: var(--surface);
  border: 2px solid var(--blue);
  border-radius: 12px;
}

.case-view-sidebar-cta h4 { margin: 0 0 12px; color: var(--ink); font-size: 18px; font-weight: 700; }
.case-view-sidebar-cta p { margin: 0 0 20px; color: var(--muted); font-size: 14px; line-height: 1.7; }

.case-view-body { max-width: 820px; }
.case-view-section { margin-bottom: 48px; }
.case-view-section:last-child { margin-bottom: 0; }

.case-view-body h2 { margin: 0 0 20px; color: var(--ink); font-size: 28px; font-weight: 700; line-height: 1.3; }
.case-view-body h3 { margin: 32px 0 16px; color: var(--ink); font-size: 22px; font-weight: 700; line-height: 1.4; }
.case-view-body p { margin: 0 0 18px; color: var(--text); font-size: 17px; line-height: 1.85; }

.case-view-body ul,
.case-view-body ol { margin: 0 0 24px; padding-left: 24px; color: var(--text); font-size: 17px; line-height: 1.85; }
.case-view-body li { margin-bottom: 10px; }

.case-view-body img {
  max-width: 100%;
  height: auto;
  margin: 32px 0;
  border-radius: 8px;
  box-shadow: 0 12px 36px rgba(23, 33, 43, 0.1);
}

.case-view-body blockquote {
  margin: 32px 0;
  padding: 20px 24px;
  background: rgba(21, 109, 255, 0.05);
  border-left: 4px solid var(--blue);
  border-radius: 6px;
  color: var(--text);
  font-size: 16px;
  line-height: 1.8;
}

.case-view-related { padding: 80px 24px; background: var(--surface); }
.case-view-related-inner { max-width: 1400px; margin: 0 auto; }

.case-related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.case-related-card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  transition: box-shadow 0.22s ease, transform 0.22s ease;
}

.case-related-card:hover { box-shadow: 0 20px 50px rgba(23, 33, 43, 0.1); transform: translateY(-3px); }

.case-related-img { width: 100%; height: 200px; overflow: hidden; background: linear-gradient(135deg, #f0f5ff, #eef6f5); }
.case-related-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.case-related-card:hover .case-related-img img { transform: scale(1.05); }
.case-related-img-placeholder { display: grid; place-items: center; color: rgba(21, 109, 255, 0.25); }
.case-related-img-placeholder svg { width: 56px; height: 56px; }

.case-related-body { flex: 1; padding: 24px; }
.case-related-company { margin: 0 0 8px; color: var(--blue); font-size: 12px; font-weight: 700; letter-spacing: 0.03em; text-transform: uppercase; }
.case-related-body h3 { margin: 0 0 12px; color: var(--ink); font-size: 18px; font-weight: 700; line-height: 1.35; }
.case-related-body p { margin: 0 0 16px; color: var(--muted); font-size: 14px; line-height: 1.7; }
.case-related-link { color: var(--blue); font-size: 14px; font-weight: 700; transition: color 0.2s ease; }
.case-related-link:hover { color: var(--blue-dark); }

.case-view-info-mobile,
.case-view-cta-mobile { display: none; }

@media (max-width: 1100px) {
  .case-view-article-inner { grid-template-columns: 280px minmax(0, 1fr); gap: 48px; }
}

@media (max-width: 900px) {
  .case-view-hero-content { grid-template-columns: 1fr; gap: 36px; }
  .case-view-hero-img { height: 280px; }
  .case-view-article-inner { grid-template-columns: 1fr; gap: 0; }
  .case-view-sidebar { display: none; }
  .case-view-info-mobile, .case-view-cta-mobile { display: block; padding: 40px 24px; background: var(--bg); }
  .case-view-info-mobile-inner, .case-view-cta-mobile-inner { max-width: 1400px; margin: 0 auto; }
  .case-related-grid { grid-template-columns: 1fr; gap: 20px; }
}

@media (max-width: 680px) {
  .case-view-hero { padding: 100px 16px 60px; }
  .case-view-hero h1 { margin-bottom: 16px; }
  .case-view-intro { margin-bottom: 20px; }
  .case-view-hero-img { height: 220px; }
  .case-view-highlight { padding: 32px 16px; }
  .case-view-highlight-card { flex-direction: column; padding: 24px 20px; }
  .case-view-article { padding: 48px 16px; }
  .case-view-body h2 { font-size: 24px; margin-bottom: 16px; }
  .case-view-body h3 { font-size: 20px; margin-top: 24px; }
  .case-view-body p, .case-view-body ul, .case-view-body ol { font-size: 16px; }
  .case-view-related { padding: 60px 16px; }
  .case-view-info-mobile, .case-view-cta-mobile { padding: 32px 16px; }
}