.kameila-home {
  --nexin-base: #7b6cc8;
  --nexin-base-rgb: 123, 108, 200;
  --nexin-black: #8072c7;
  --nexin-gray: #6a6588;
  --p: #7b6cc8;
  --pd: #5c4eaa;
  --ink: #2e2950;
  --mut: #6a6e8a;
  --gold: #a8823c;
  --gold-d: #a8823c;
  --card: #fcfbfe;
  --text-color:#5c4ca9;
  --title-color:#2e2950;
  --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "DM Sans", sans-serif;
  font-family: var(--sans);
  color: var(--ink);
  background: #fff;
}
.text-nexin-base{
  color: var(--text-color);
}

.kameila-home .container {
  max-width: 1220px;
}

.kameila-home a {
  color: inherit;
}

.kameila-home .loader div:nth-child(1) {
  background-color: #c9b8ef;
}

.kameila-home .loader div:nth-child(2) {
  background-color: #7b6cc8;
}

.kameila-home .loader div:nth-child(3) {
  background-color: #c4a056;
}

/* ---------- Header overrides ---------- */
.kameila-home .main-header {
  background: linear-gradient(to bottom, #fdfdff, #f8f6fc);
  box-shadow: 0 1px 0 rgba(92, 78, 170, 0.06);

}

.kameila-home .main-menu__wrapper {
  border-bottom: 1px solid #c9a45c;
  background: linear-gradient(to bottom, #fdfdff, #f8f6fc);
}

.kameila-home .main-menu__wrapper-inner {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 20px;
}

.kameila-home .main-menu__logo {
  padding: 27px 0;
}

.kameila-home .main-menu__logo img {
  height: 46px;
  width: auto;
}

.kameila-home .main-menu .main-menu__list > li,
.kameila-home .stricky-header .main-menu__list > li {
  padding:28px 16px;
}

.kameila-home .main-menu .main-menu__list > li + li,
.kameila-home .stricky-header .main-menu__list > li + li {
  margin-left: 8px;
}

.kameila-home .main-menu .main-menu__list > li > a,
.kameila-home .stricky-header .main-menu__list > li > a {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: normal;
  color: #4b4b4b;
  letter-spacing: 0.04em;
}

.kameila-home .main-menu .main-menu__list > li.current > a,
.kameila-home .main-menu .main-menu__list > li:hover > a,
.kameila-home .stricky-header .main-menu__list > li.current > a,
.kameila-home .stricky-header .main-menu__list > li:hover > a {
  color: #8072c7;
}

/* .kameila-home .main-menu .main-menu__list > li.current > a::after,
.kameila-home .stricky-header .main-menu__list > li.current > a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 18px;
  width: 22px;
  height: 3px;
  margin-left: -11px;
  border-radius: 3px;
  background: var(--p);
} */

.kameila-home .mobile-nav__toggler {
  color: var(--pd);
  font-size: 22px;
}

.kameila-home .stricky-header.main-menu {
  background: #fff;
  box-shadow: 0 8px 24px rgba(92, 78, 170, 0.08);
}

.kameila-home .mobile-nav__content {
  background: #fff;
}

.kameila-home .mobile-nav__content .main-menu__list a {
  color: var(--ink);
}

/* ---------- Banner ---------- */
.hero-banner {
  position: relative;
  width: 100%;
  background: #efe7f8;
  overflow: hidden;
  line-height: 0;
}

.hero-banner img {
  width: 100%;
  height: auto;
  display: block;
}

.hero-banner__actions {
 position: absolute;
    left: 54.2%;
    top: 54.8%;
    z-index: 2;
    gap: 66px;
    line-height: normal;
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: 14px;
  font-size: clamp(12px, 1.15vw, 28px);
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1.2;
  white-space: nowrap;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease,
    color 0.25s ease;
}

.hero-btn:hover {
  transform: translateY(-2px);
  text-decoration: none;
}

.hero-btn--solid {
  font-family: var(--serif);
  background: #8072c7;
  color: #fff !important;
  box-shadow: 0 8px 18px rgba(123, 108, 200, 0.28);
}

.hero-btn--solid:hover {
  background: #6d5dbb;
  color: #fff;
}

.hero-btn--outline {
  background: #fff;
  color: #7b6cc8;
  border: 1.5px solid #7b6cc8;
}

.hero-btn--outline:hover {
  background: #f6f3ff;
  color: #6d5dbb;
}

@media (max-width: 767px) {
  .hero-banner__actions {
    left: 50%;
    top: 48%;
    justify-content: center;
    gap: 10px;
    transform: translateX(-50%);
  }

  .hero-btn {
    padding: 8px 16px;
    font-size: 12px;
  }
}

/* ---------- Brand value ---------- */
.section-value {
  padding: 100px 0 100px;
  background: #fff;
}

.section-value .sec-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 16px;
}

.section-value .sec-label span {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--gold-d);
  letter-spacing: 0.28em;
  font-weight: 600;
}

.section-value .sec-label::before,
.section-value .sec-label::after {
  content: "";
  width: 42px;
  height: 1px;
}

.section-value .sec-label::before {
  background: linear-gradient(90deg, transparent, var(--gold));
}

.section-value .sec-label::after {
  background: linear-gradient(90deg, var(--gold), transparent);
}

.section-value .sec-title {
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 800;
  text-align: center;
  color: var(--title-color);
  letter-spacing: 0.04em;
  line-height: 1.5;
  margin-bottom: 0;
}

.section-value .value-intro {
  margin-top: 56px;
}

.section-value .logo-art {
  width: 100%;
  max-width: 360px;
  margin: 0 auto;
  display: inline-block;
}

.section-value .value-intro p {
  font-size: 22px;
  color: var(--ink);
  line-height: 2.3;
  margin: 0;
  font-weight: 800;
  font-family: var(--serif);
}

.section-value .value-intro p + p {
  margin-top: 16px;
}

.section-value .value-cards {
  margin-top: 56px;
}

.section-value .v-card {
  background: var(--card);
  border-radius: 22px;
  padding: 40px 30px 36px;
  height: 100%;
  border: 1px solid #e9e4f3;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.section-value .v-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 36px rgba(92, 78, 170, 0.12);
}

.section-value .v-card .ico {
  width: 62px;
  height: 62px;
  border-radius: 14px;
  background: #efeaf8;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--pd);
}

.section-value .v-card .ico img {
  width: 62px;
  height: 62px;
  border-radius: 14px;
}

.section-value .v-card .ico.ico-img {
  background: transparent;
  padding: 0;
}

.section-value .v-card .no {
  font-size: 12px;
  font-weight: 600;
  color: var(--gold-d);
  letter-spacing: 0.22em;
  margin-bottom: 14px;
}

.section-value .v-card h3 {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 20px;
  letter-spacing: 0.03em;
}

.section-value .v-card p {
  font-size: 15px;
  color: var(--mut);
  line-height: 1.9;
}

@media (max-width: 991px) {
  .section-value {
    padding: 56px 0 64px;
  }

  .section-value .sec-title {
    font-size: 26px;
  }

  .section-value .value-intro {
    margin-top: 36px;
    text-align: center;
  }

  .section-value .value-intro p {
    text-align: left;
    font-size: 15px;
  }

  .section-value .logo-art {
    max-width: 260px;
    margin-bottom: 24px;
  }

  .section-value .value-cards {
    margin-top: 32px;
  }
}

@media (max-width: 767px) {
  .kameila-home .main-menu__logo img {
    height: 30px;
  }

  .kameila-home .main-menu .main-menu__list > li.current > a::after {
    display: none;
  }
}

/* ---------- 成长模型：标题 ---------- */
.section-model {
  padding: 100px 0 100px;
  background: #f5f3fb;
}

.section-model .sec-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 20px;
}

.section-model .sec-label span {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--gold-d);
  letter-spacing: 0.28em;
  font-weight: 600;
}

.section-model .sec-label::before,
.section-model .sec-label::after {
  content: "";
  width: 42px;
  height: 1px;
}

.section-model .sec-label::before {
  background: linear-gradient(90deg, transparent, var(--gold));
}

.section-model .sec-label::after {
  background: linear-gradient(90deg, var(--gold), transparent);
}

.section-model .sec-title {
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 800;
  text-align: center;
  color: var(--ink);
  letter-spacing: 0.04em;
  line-height: 1.5;
  margin-bottom: 0;
}

.section-model .model-lead {
  margin: 36px auto 0;
  max-width: 760px;
  text-align: center;
  font-size: 16px;
  line-height: 2;
  color: var(--mut);
}

.section-model .model-lead strong {
  color: var(--text-color);
  font-weight: 700;
}

/* 左侧树图 + 右侧文案 */
.model-stage {
  display: grid;
  grid-template-columns: 524px 1fr;
  gap: 56px;
  align-items: center;
  margin-top: 71px;
}

.model-tree-card {
  background: #fff;
  border-radius: 24px;
  padding: 28px 22px 20px;
  box-shadow: 0 18px 48px rgba(92, 78, 170, 0.08);
}

.model-tree {
  position: relative;
  animation: modelTreeFloat 6s ease-in-out infinite;
}

.model-tree img {
  width: 100%;
  height: auto;
  display: block;
}

@keyframes modelTreeFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}

.tree-tag {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  border: none;
  background: #fff2df;
  color: var(--nexin-black);
  font-family: inherit;
  font-size: 13px;
  line-height: 1;
  padding: 13px 16px;
  border-radius: 999px;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(92, 78, 170, 0.08);
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease,
    box-shadow 0.25s ease, border-color 0.25s ease;
}

.tree-tag span {
  margin-right: 4px;
  color: var(--nexin-black);
  letter-spacing: -0.08em;
}

.tree-tag:hover,
.tree-tag.is-active {
  background: var(--nexin-black);
  border-color: var(--gold);
  color: #fff;
  box-shadow: 0 10px 22px rgba(196, 160, 86, 0.22);
}
.tree-tag:hover span,
.tree-tag.is-active span{
  color: #fff;
}

.tree-tag.is-active {
  transform: translateX(-50%) scale(1.04);
}

.tag-crown {
  top: 27%;
}

.tag-trunk {
  top: 40%;
}

.tag-roots {
  top: 54%;
}

.tag-soil {
  top: 74%;
}

.model-tree-hint {
  margin: 14px 0 0;
  text-align: center;
  font-size: 13px;
  color: #9a93b5;
}

.model-panel {
  display: none;
}

.model-panel.is-active {
  display: block;
  animation: modelPanelIn 0.45s ease;
}

@keyframes modelPanelIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.model-panel__head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding-bottom: 18px;
  margin-bottom: 22px;
  border-bottom: 1px solid #eee8f6;
}

.model-no {
  font-family: var(--serif);
  font-size: 54px;
  line-height: 0.9;
  font-weight: 700;
  color: rgba(128,114,199,.22);
}

.model-panel__head h3 {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 800;
  color: var(--title-color);
  margin: 8px 0 8px;
}

.model-panel__head p {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold-d);
}

.model-panel__intro {
  font-size: 15px;
  line-height: 2;
  color: var(--mut);
  margin-bottom: 22px;
}

.model-panel__intro .mark,
.model-panel__intro strong {
  /* color: var(--gold-d); */
  font-weight: 700;
  background:transparent;
}

.model-facts {
  display: grid;
  gap: 12px;
}

.model-fact {
  background: #f3eeee;
  border-radius: 16px;
  padding: 22px 20px;
  border: 1px solid #eadfd1;
}

.model-fact h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--gold-d);
  margin: 0 0 8px;
}

.model-fact p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #6a6588;
}

.model-how {
  margin-top: 114px;
}

.model-how .sec-title {
  font-size: 32px;
}

.model-how__lead {
  max-width: 820px;
  margin: 26px auto 0;
  text-align: center;
  font-size: 15px;
  line-height: 2;
  color: var(--mut);
}

.model-steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-top: 61px;
}

.model-steps::before {
  content: "";
  position: absolute;
  top: 39px;
  left: 8.8%;
  right: 8.8%;
  height: 2px;
  background: linear-gradient(to right, #e2d2bd, #bdb4de);
}

.model-step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.model-step__icon {
  width: 75px;
  height: 75px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid #e0dbef;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 24px rgba(92, 78, 170, 0.08);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.model-step:hover .model-step__icon {
  transform: translateY(-6px);
  box-shadow: 0 16px 28px rgba(92, 78, 170, 0.14);
}

.model-step__icon img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.model-step__no {
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold-d);
  font-weight: 600;
  margin-bottom: 10px;
}

.model-step h4 {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 14px;
}

.model-step p {
  font-size: 14px;
  line-height: 1.9;
  color: var(--mut);
  text-align: left;
}

/* ---------- 课程体系 ---------- */
.section-courses {
  padding: 100px 0 100px;
  background: #fff;
}

.section-courses .sec-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 28px;
}

.section-courses .sec-label span {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--gold-d);
  letter-spacing: 0.28em;
  font-weight: 600;
}

.section-courses .sec-label::before,
.section-courses .sec-label::after {
  content: "";
  width: 42px;
  height: 1px;
}

.section-courses .sec-label::before {
  background: linear-gradient(90deg, transparent, var(--gold));
}

.section-courses .sec-label::after {
  background: linear-gradient(90deg, var(--gold), transparent);
}

.section-courses .sec-title {
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 800;
  text-align: center;
  color: var(--ink);
  letter-spacing: 0.04em;
  line-height: 1.5;
  margin-bottom: 0;
}

.courses-lead {
  margin: 41px auto 0;
  max-width: 780px;
  text-align: center;
  font-size: 16px;
  line-height: 2;
  color: var(--mut);
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 22px;
  margin-top: 70px;
}

.course-card {
  display: flex;
  flex-direction: column;
  grid-column: span 2;
}

.course-card--wide {
  grid-column: span 3;
}

.course-card__panel {
  position: relative;
  display: flex;
  flex-direction: column;
  flex: 1;
  background: linear-gradient(to bottom, #fcfbfe, #f7f5fb);
  border: 1px solid #eeeaf6;
  border-radius: 22px;
  padding: 25px 32px 33px;
  overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.course-card__panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #7b6cc8, #c4a056);
  opacity: 0;
  transform: scaleX(0.35);
  transform-origin: center top;
  transition: opacity 0.35s ease, transform 0.35s ease;
  z-index: 1;
}

.course-card:hover .course-card__panel {
  transform: translateY(-10px);
  box-shadow: 0 18px 40px rgba(92, 78, 170, 0.14);
  border-color: #e3dcf4;
}

.course-card:hover .course-card__panel::before {
  opacity: 1;
  transform: scaleX(1);
}

.course-mascot-1 {
  width:82px;
  height:67px;
}
.course-mascot-2{
  width:43px;
  height:70px;
}
.course-mascot-3{
  width:59px;
  height:73px;
}
.course-mascot-4{
  width:66px;
  height:73px;
}
.course-mascot-5{
  width:61px;
  height:71px;
}

.course-mascot {
  display: block;
  margin: 0 0 24px;
  pointer-events: none;
}

.course-no {
  position: absolute;
  right: 22px;
  top: 37px;
  font-family: var(--serif);
  font-size: 42px;
  font-weight: 700;
  line-height: 1;
  color: rgba(123, 108, 200, 0.18);
  letter-spacing: 0.04em;
}

.course-kicker {
  font-size: 12px;
  color: var(--gold-d);
  letter-spacing: 0.08em;
  margin: 0 0 15px;
  font-weight: 700;
}

.course-card h3 {
  font-family: var(--serif);
  font-size: 23px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.35;
  margin: 0 0 14px;
}

.course-meta {
  font-size: 13px;
  color: var(--mut);
  margin: 0 0 16px;
}

.course-body {
  font-size: 14px;
  line-height: 1.95;
  color: var(--mut);
  margin: 0 0 22px;
}

.course-body strong {
  color: var(--text-color);
  font-weight: 700;
}

.course-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.course-tags span {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: #ebe9f5;
  color: var(--pd);
  font-size: 12px;
  line-height: 1.4;
  border: 1px solid #dedaf1;
}

.course-tags span.is-accent {
  background: #f2eeea;
  color: #a8823c;
  border: 1px solid #e9dcc9;
}

/* ---------- 常见问题 ---------- */
.section-faq {
  padding: 100px 0 100px;
  background: #f8f6fc;
}

.section-faq .sec-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 24px;
}

.section-faq .sec-label span {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--gold-d);
  letter-spacing: 0.28em;
  font-weight: 600;
}

.section-faq .sec-label::before,
.section-faq .sec-label::after {
  content: "";
  width: 42px;
  height: 1px;
}

.section-faq .sec-label::before {
  background: linear-gradient(90deg, transparent, var(--gold));
}

.section-faq .sec-label::after {
  background: linear-gradient(90deg, var(--gold), transparent);
}

.section-faq .sec-title {
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 800;
  text-align: center;
  color: var(--ink);
  letter-spacing: 0.04em;
  line-height: 1.5;
  margin-bottom: 0;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 980px;
  margin: 66px auto 0;
}

.faq-list.is-collapsed .faq-item--extra {
  display: none;
}

.faq-item {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(92, 78, 170, 0.05);
  overflow: hidden;
  border: 1px solid #e5dff1;
}

.faq-q {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 94px;
  padding: 26px 28px 26px 30px;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
  gap: 21px;
}

.faq-no {
  width: 34px;
  height: 34px;
  min-width: 34px;
  border-radius: 50%;
  background: #f1f0f8;
  color: #8072c7;
  line-height: 34px;
  font-size: 13px;
  text-align: center;
}

.faq-item.is-open .faq-no {
  width: 34px;
  height: 34px;
  min-width: 34px;
  border-radius: 50%;
  background: #8072c7;
  color: #fff;
  line-height: 34px;
  font-size: 13px;
  text-align: center;
}
.faq-item.is-open{
  border:2px solid #cbc5e8;
}

.faq-q-text {
  flex: 1;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.faq-item.is-open .faq-q-text {
  color: var(--ink);
}

.faq-chevron {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  margin-left: 12px;
  border-right: 1.5px solid #b7b0d4;
  border-bottom: 1.5px solid #b7b0d4;
  transform: rotate(45deg) translateY(-3px);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.faq-item.is-open .faq-chevron {
  border-color: #8072c7;
  transform: rotate(-135deg) translateY(-3px);
}

.faq-a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s ease;
}

.faq-item.is-open .faq-a {
  grid-template-rows: 1fr;
}

.faq-a-inner {
  overflow: hidden;
}

.faq-a-inner p {
  margin: 0;
  padding: 0 56px 28px 88px;
  font-size: 15px;
  line-height: 1.95;
  color: var(--mut);
}

.faq-a-inner p + p {
  padding-top: 12px;
}

.faq-a-inner strong {
  color: var(--text-color);
  font-weight: 700;
}

.faq-more {
  display: block;
  margin: 36px auto 0;
  padding: 10px 22px;
  border: 1px solid #d8d2ee;
  border-radius: 999px;
  background: #fff;
  color: #8072c7;
  font-size: 14px;
  line-height: 1.4;
  cursor: pointer;
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.faq-more:hover {
  background: #f8f6ff;
  border-color: #c7bfeb;
  box-shadow: 0 8px 18px rgba(92, 78, 170, 0.08);
}

/* ---------- 科学根基 ---------- */
.section-science {
  padding: 100px 0 100px;
  background: #fff;
}

.section-science .sec-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 16px;
}

.section-science .sec-label span {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--gold-d);
  letter-spacing: 0.28em;
  font-weight: 600;
}

.section-science .sec-label::before,
.section-science .sec-label::after {
  content: "";
  width: 42px;
  height: 1px;
}

.section-science .sec-label::before {
  background: linear-gradient(90deg, transparent, var(--gold));
}

.section-science .sec-label::after {
  background: linear-gradient(90deg, var(--gold), transparent);
}

.section-science .sec-title {
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 800;
  text-align: center;
  color: var(--title-color);
  letter-spacing: 0.04em;
  line-height: 1.5;
  margin-bottom: 0;
}

.science-lead {
  max-width: 860px;
  margin-top: 28px;
  font-size: 16px;
  line-height: 2;
  color: var(--mut);
  text-align: center;
}

.science-cards {
  margin-top: 36px;
}

.science-card {
  position: relative;
  isolation: isolate;
  background: #fbfafe;
  border-radius: 22px;
  padding: 36px 32px 36px;
  border: 1px solid #ede9f6;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.45s ease, background 0.45s ease;
}

.science-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    105deg,
    transparent 35%,
    rgba(255, 255, 255, 0.5) 50%,
    transparent 65%
  );
  background-size: 220% 100%;
  background-position: 160% 0;
  pointer-events: none;
  z-index: 1;
  transition: background-position 0.85s cubic-bezier(0.22, 1, 0.36, 1);
}

.science-card:hover {
  transform: translateY(-8px);
  background: #fff;
  border-color: rgba(196, 160, 86, 0.45);
  box-shadow: 0 18px 36px rgba(92, 78, 170, 0.14);
}

.science-card:hover::after {
  background-position: -60% 0;
}

.science-card:hover .science-tag {
  transform: translateY(-1px);
  box-shadow: 0 8px 16px rgba(92, 78, 170, 0.1);
}

.science-card:hover h3 {
  color: var(--text-color);
}

.science-card:hover .science-practice {
  background: linear-gradient(180deg, rgba(247, 244, 252, 0.9), transparent);
  border-top-color: rgba(196, 160, 86, 0.35);
}

.science-tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  width: auto;
  margin-bottom: 20px;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.science-tag--rose {
  color: #C06A6B;
  background: #f8ecef;
}

.science-tag--purple {
  color: #5b48a7;
  background: #ede9f7;
}

.science-tag--green {
  color: #608646;
  background: #ebefea;
}

.science-tag--gold {
  color: #956712;
  background: #f4ede6;
}

.science-tag--blue {
  color: #1c6caa;
  background: #e6ecf5;
}

.science-card h3 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.35;
  margin: 0 0 15px;
  transition: color 0.4s ease;
}

.science-author {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mut);
}

.science-card .science-author:last-of-type {
  margin-bottom: 16px;
}

.science-body {
  margin: 20px 0 22px;
  font-size: 14px;
  line-height: 1.95;
  color: var(--mut);
}

.science-body strong {
  color: var(--text-color);
  font-weight: 700;
}

.science-practice {
  position: relative;
  z-index: 1;
  padding: 18px 0 0;
  border-top: 1px dashed #d8d2e8;
  transition: background 0.4s ease, border-color 0.4s ease;
}

.science-practice h4 {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold-d);
}

.science-practice p {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--mut);
}

.science-consensus {
  margin-top: 70px;
  padding: 60px 58px 58px;
  border-radius: 24px;
  background: var(--nexin-black);
  color: #eef6f3;
}

.science-consensus h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 25px;
  font-weight: 800;
  /* text-align: center; */
  color: #fff;
  letter-spacing: 0.06em;
}

.science-consensus__en {
  margin: 10px 0 36px;
  /* text-align: center; */
  font-size: 14px;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255);
}

.science-point {
  height: 100%;
  padding: 4px 4px 4px 0;
  border-radius: 12px;
  transition: transform 0.4s ease, background 0.4s ease;
}

.science-point:hover {
  transform: translateY(-4px);
}

.science-point .science-point-title {
  margin: 0 0 14px;
  /* font-family: var(--serif); */
  font-size: 18px;
  font-weight: 800;
  line-height: 1.45;
  color: #ebd9ae;
  transition: letter-spacing 0.4s ease, color 0.4s ease;
}

.science-point:hover .science-point-title {
  color: #f4e6c0;
}

.science-point p {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.86);
}

.science-point cite {
  display: block;
  margin-top: 14px;
  font-style: normal;
  font-size: 13px;
  color: #fff;
  opacity: 0.5;
}
.text-other{
  color: #ebd9ae;
  font-weight:800;
}
.science-consensus__foot {
  margin: 36px 0 0;
  padding: 32px 0 0 0;
  border-top: 2px solid #fff;
  /* border-left: 3px solid #e8c98a; */
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.88);
}

@media (prefers-reduced-motion: reduce) {
  .science-card,
  .science-card::after,
  .science-tag,
  .science-card h3,
  .science-practice,
  .science-point {
    transition: none;
    animation: none;
  }

  .science-card:hover,
  .science-point:hover {
    transform: none;
  }
}

/* ---------- About ---------- */
.section-about {
  padding: 100px 0;
  background: linear-gradient(to bottom, #f5f2fb, #f3effa);
}

.section-about .sec-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 16px;
}

.section-about .sec-label span {
  font-family: var(--serif);
  font-size: 15px;
  color: var(--gold-d);
  letter-spacing: 0.28em;
  font-weight: 600;
}

.section-about .sec-label::before,
.section-about .sec-label::after {
  content: "";
  width: 42px;
  height: 1px;
}

.section-about .sec-label::before {
  background: linear-gradient(90deg, transparent, var(--gold));
}

.section-about .sec-label::after {
  background: linear-gradient(90deg, var(--gold), transparent);
}

.section-about .sec-title {
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 800;
  text-align: center;
  color: var(--ink);
  letter-spacing: 0.04em;
  line-height: 1.5;
  margin-bottom: 0;
}

.about-grid {
  margin-top: 56px;
}

.about-mission h3,
.about-strategy h3,
.about-founder h3 {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 800;
  color: var(--title-color);
  line-height: 1.45;
  margin: 0 0 30px;
}

.about-mission p {
  /* margin: 0 0 15px; */
  font-size: 16px;
  line-height: 2;
  color: var(--mut);
}

.about-callout {
  margin-top: 20px;
  padding: 23px 26px;
  border-radius:0 16px 16px 0;
  background: #fff;
  border-left:5px solid var(--nexin-black);
  border-top:1px solid #e9e4f3;
  border-right:1px solid #e9e4f3;
  border-bottom:1px solid #e9e4f3;
  transition: transform 0.4s ease, box-shadow 0.4s ease, border-left-color 0.4s ease;
}

.about-callout:hover {
  transform: translateY(-4px);
  border-left-color: #8072c7;
  box-shadow: 0 14px 28px rgba(92, 78, 170, 0.1);
}

.about-callout p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.95;
  color: var(--mut);
}

.about-callout strong {
  font-weight: 700;
  color: var(--text-color);
}

.about-birth {
  margin: 28px 0 34px;
  font-size: 16px;
  line-height: 2;
  color: var(--text-color);
}

.about-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: #fff;
  border-radius: 18px;
  border: 1px solid #e9e4f3;
  box-shadow: 0 12px 32px rgba(92, 78, 170, 0.06);
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.4s ease;
}

.about-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #7b6cc8, #c4a056);
  opacity: 0;
  transform: scaleX(0.35);
  transform-origin: center top;
  transition: opacity 0.35s ease, transform 0.35s ease;
  z-index: 2;
}

.about-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    105deg,
    transparent 35%,
    rgba(255, 255, 255, 0.55) 50%,
    transparent 65%
  );
  background-size: 220% 100%;
  background-position: 160% 0;
  pointer-events: none;
  z-index: 1;
  transition: background-position 0.85s cubic-bezier(0.22, 1, 0.36, 1);
}

.about-card:hover {
  transform: translateY(-8px);
  border-color: rgba(196, 160, 86, 0.4);
  box-shadow: 0 20px 42px rgba(92, 78, 170, 0.14);
}

.about-card:hover::before {
  opacity: 1;
  transform: scaleX(1);
}

.about-card:hover::after {
  background-position: -60% 0;
}

.about-strategy {
  padding: 34px 45px;
}

.about-strategy__lead {
  margin: -18px 0 28px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mut);
}

.about-timeline li + li {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px dashed #f0ecf6;
}

.about-date {
  flex: 0 0 86px;
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--gold-d);
  letter-spacing: 0.02em;
  line-height: 1.8;
  transition: color 0.3s ease, transform 0.3s ease;
}

.about-timeline li:hover .about-date {
  color: #8072c7;
  transform: translateX(2px);
}

.about-timeline p {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mut);
}

.about-timeline strong {
  color: var(--title-color);
  font-weight: 700;
}

.about-founder {
  padding: 40px 45px;
}

.about-tag {
  display: inline-flex;
  align-self: flex-start;
  margin-bottom: 18px;
  /* padding: 5px 14px; */
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--gold-d);
  /* background: #ede9f7; */
}

.about-founder h3 {
  margin-bottom: 22px;
}

.about-founder > p {
  margin: 0 0 23px;
  font-size: 16px;
  line-height: 2;
  color: var(--mut);
}

.about-founder strong {
  color: var(--title-color);
  font-weight: 700;
}

.about-quote {
  position: relative;
  margin: 0 0 26px;
  padding: 22px 24px 20px 28px;
  border-radius: 16px;
  /* background: #f4f2fa; */
  background: radial-gradient(circle at top left, #f4f2fa, #fbf8f3);
  overflow: hidden;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.about-quote:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 22px rgba(92, 78, 170, 0.08);
}

.about-quote::before {
  content: "“";
  position: absolute;
  top: 6px;
  left: 14px;
  font-family: var(--serif);
  font-size: 42px;
  line-height: 1;
  color: #d7d3ec;
  opacity: 0.85;
}

.about-quote p {
  position: relative;
  z-index: 1;
  margin: 0;
  padding-left: 18px;
  font-size: 16px;
  line-height: 1.95;
  color: #241b69;
}

.about-founder__close {
  margin-top: 8px !important;
  font-size: 16px;
  font-weight: 600;
  color: var(--title-color);
}

/* ---------- Footer ---------- */
.site-end {
  background: #8072c7;
  padding: 50px 0 45px;
  color: #fff;
}

.site-end__brand {
  margin: 0;
}

.site-end__logo {
  display: block;
  height: 220px;
  width: auto;
}

.site-end__slogan {
  margin: 0 0 25px;
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 800;
  line-height: 1.45;
  color: #fff;
  letter-spacing: 0.02em;
}

.site-end__lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.92);
}

.site-end__line {
  margin: 51px 0 0;
  height: 2px;
  background: rgba(255, 255, 255, 0.95);
}

.site-end__body {
  padding-top: 27px;
}

.site-end__title {
  margin: 0 0 40px;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  color: #fff;
}

.site-end__contact li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.94);
}

.site-end__contact li + li {
  margin-top: 14px;
}

.site-end__contact i {
  margin-top: 4px;
  width: 16px;
  color: #fff;
}

.site-end__icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 5px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.site-end__icon--pin {
  width: 16px;
  height: 21px;
  margin-top: 3px;
}

.site-end__contact a {
  color: #fff;
}

.site-end__contact a:hover {
  color: #f4ead4;
}

.site-end__codes {
  gap: 28px;
}

.site-end__codes figure {
  margin: 0;
  width: 110px;
  text-align: center;
}

.site-end__qr {
  display: block;
  width: 110px;
  height: 110px;
  object-fit: cover;
  background: #fff;
  border-radius: 8px;
  transition: transform 0.3s ease;
}

.site-end__qr--empty {
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

.site-end__codes figure:hover .site-end__qr {
  transform: translateY(-4px);
}

.site-end__codes figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.88);
}

.site-end__copy {
  margin: 60px 0 0;
  text-align: center;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.72);
}

@media (max-width: 1199px) {
  .model-stage {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .model-panel__head h3 {
    font-size: 24px;
  }

  .course-card h3 {
    font-size: 22px;
  }
}

@media (max-width: 991px) {
  .section-faq {
    padding: 72px 0 80px;
  }

  .section-faq .sec-title {
    font-size: 26px;
  }

  .section-science {
    padding: 72px 0 80px;
  }

  .section-science .sec-title {
    font-size: 26px;
  }

  .section-about {
    padding: 96px 0 80px;
  }

  .section-about .sec-title {
    font-size: 26px;
  }

  .about-strategy,
  .about-founder {
    padding: 28px 24px 24px;
  }

  .about-mission h3,
  .about-strategy h3,
  .about-founder h3 {
    font-size: 22px;
    margin-bottom: 24px;
  }

  .site-end {
    padding: 40px 0 36px;
  }

  .site-end__logo {
    height: 110px;
  }

  .site-end__slogan {
    font-size: 24px;
  }

  .site-end__title {
    margin-bottom: 24px;
  }

  .site-end__copy {
    margin-top: 48px;
    text-align: center;
  }

  .science-consensus {
    padding: 36px 28px 32px;
  }

  .science-consensus h3 {
    font-size: 24px;
  }

  .faq-list {
    margin-top: 40px;
  }

  .faq-q {
    min-height: 76px;
    padding: 18px 18px 18px 22px;
    gap: 14px;
  }

  .faq-q-text {
    font-size: 16px;
  }

  .faq-a-inner p {
    padding: 0 22px 20px 22px;
  }

  .section-courses {
    padding: 72px 0 80px;
  }

  .section-courses .sec-title {
    font-size: 26px;
  }

  .courses-grid {
    grid-template-columns: 1fr;
    margin-top: 72px;
  }

  .course-card,
  .course-card--wide {
    grid-column: span 1;
  }

  .section-model {
    padding: 64px 0 72px;
  }

  .section-model .sec-title,
  .model-how .sec-title {
    font-size: 26px;
  }

  .model-stage {
    grid-template-columns: 1fr;
    margin-top: 40px;
    gap: 28px;
  }

  .model-tree-card {
    max-width: 520px;
    margin: 0 auto;
  }

  .model-how {
    margin-top: 72px;
  }

  .model-steps {
    grid-template-columns: 1fr 1fr;
    margin-top: 40px;
  }

  .model-steps::before {
    display: none;
  }

  .model-step p {
    text-align: center;
  }
}

@media (max-width: 767px) {
  .tree-tag {
    font-size: 11px;
    padding: 6px 10px;
  }

  .section-model .sec-title,
  .model-how .sec-title,
  .section-courses .sec-title,
  .section-faq .sec-title,
  .section-science .sec-title,
  .section-about .sec-title {
    font-size: 22px;
    padding: 0 6px;
  }

  .about-timeline li {
    flex-direction: column;
    gap: 6px;
  }

  .about-date {
    flex: none;
  }

  .site-end__brand .col-auto {
    width: 100%;
    text-align: center;
  }

  .site-end__logo {
    margin: 0 auto 16px;
    height: 96px;
  }

  .site-end__slogan,
  .site-end__lead,
  .site-end__title {
    text-align: center;
  }

  .site-end__contact {
    max-width: 420px;
    margin: 0 auto;
  }

  .site-end__codes {
    justify-content: center;
  }

  .site-end__line {
    margin-top: 32px;
  }

  .science-lead {
    font-size: 15px;
  }

  .science-card {
    padding: 26px 22px 24px;
  }

  .science-consensus {
    margin-top: 48px;
    padding: 28px 20px 24px;
    border-radius: 22px;
  }

  .science-consensus h3 {
    font-size: 20px;
  }

  .science-consensus__foot {
    margin-top: 28px;
  }

  .courses-lead {
    font-size: 15px;
    margin-top: 24px;
  }

  .course-mascot {
    height: 58px;
    margin-bottom: 18px;
  }

  .course-card__panel {
    padding: 22px 20px 24px;
  }

  .course-no {
    top: 22px;
    font-size: 36px;
  }

  .model-no {
    font-size: 42px;
  }

  .model-panel__head h3 {
    font-size: 20px;
  }

  .model-steps {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* ---------- 回到顶部 ---------- */
.scroll-to-top {
  display: flex;
  align-items: center;
  justify-content: center;
  position: fixed;
  width: 52px;
  height: 52px;
  right: 28px;
  bottom: 28px;
  z-index: 99;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 10px 24px rgba(92, 78, 170, 0.16);
  color: #8072c7;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.28s ease, visibility 0.28s ease, transform 0.28s ease,
    box-shadow 0.28s ease, background 0.28s ease;
}

.scroll-to-top.show {
  opacity: 1;
  visibility: visible;
  bottom: 28px;
  transform: translateY(0);
}

.scroll-to-top:hover,
.scroll-to-top:focus {
  color: #fff;
  background: #8072c7;
  box-shadow: 0 16px 28px rgba(92, 78, 170, 0.22);
  transform: translateY(-4px);
}

.scroll-to-top__text,
.scroll-to-top__wrapper {
  display: none;
}

.scroll-to-top__ring {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
  pointer-events: none;
}

.scroll-to-top__track,
.scroll-to-top__progress {
  fill: none;
  stroke-width: 2.5;
}

.scroll-to-top__track {
  stroke: #e6e1f4;
}

.scroll-to-top__progress {
  stroke: #8072c7;
  stroke-linecap: round;
  stroke-dasharray: 138.23;
  stroke-dashoffset: calc(138.23 * (1 - var(--scroll-progress, 0) / 100));
  transition: stroke-dashoffset 0.2s linear, stroke 0.28s ease;
}

.scroll-to-top:hover .scroll-to-top__track,
.scroll-to-top:focus .scroll-to-top__track {
  stroke: rgba(255, 255, 255, 0.28);
}

.scroll-to-top:hover .scroll-to-top__progress,
.scroll-to-top:focus .scroll-to-top__progress {
  stroke: #c4a056;
}

.scroll-to-top__icon {
  position: relative;
  z-index: 1;
  width: 10px;
  height: 10px;
  margin-top: 3px;
  border-top: 2px solid currentColor;
  border-left: 2px solid currentColor;
  transform: rotate(45deg);
}

@media (max-width: 767px) {
  .scroll-to-top,
  .scroll-to-top.show {
    right: 16px;
    bottom: 20px;
    width: 46px;
    height: 46px;
  }
}