/* ============================================================
   ecosystem 页面专属样式
   ============================================================ */

/* ---------- base ---------- */
:root {
  --green: #4cc39a;
  --dark: #1a1a1a;
  --muted: #646464;
  --line: #e7eeec
}

* {
  box-sizing: border-box
}

html {
  scroll-behavior: smooth
}

body {
  margin: 0;
  background: #fff;
  color: var(--dark);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif
}

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

button {
  font: inherit;
  cursor: pointer
}

.wrap {
  max-width: 1248px;
  margin: auto;
  padding: 0 24px
}

header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #ffffffeb;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px)
}

.nav {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px
}

.logo {
  font-size: 28px;
  font-weight: 900
}

.logo b {
  color: var(--green)
}

nav {
  display: flex;
  gap: 26px;
  color: var(--muted);
  font-size: 14px
}

nav a:hover,
nav a[aria-current] {
  color: #1b9668
}

.btn {
  border: 0;
  border-radius: 8px;
  background: var(--green);
  color: #fff;
  padding: 13px 22px;
  font-weight: 700
}

.btn:hover {
  background: #00ab89
}

.btn.green {
  background: var(--green);
  color: #fff
}

.btn.login {
  background: #fff;
  color: #1b9668;
  border: 1px solid #bcefe1
}

.nav-actions {
  display: flex;
  gap: 10px
}

.hero {
  background: linear-gradient(135deg, #eef7f2 0%, #fff 70%);
  padding: 100px 0 86px
}

.eyebrow {
  color: #1b9668;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .16em
}

.hero h1 {
  font-size: clamp(30px, 3.2vw, 44px);
  line-height: 1.15;
  margin: 18px 0 24px;
  letter-spacing: -.05em
}

.hero h1 em {
  font-style: normal;
  color: #22b07c
}

.lead {
  max-width: 730px;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.9;
  margin-bottom: 34px
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px
}

.chips span {
  padding: 9px 14px;
  border: 1px solid #c6ece1;
  border-radius: 999px;
  color: #008d70;
  background: #fff;
  font-size: 13px
}

section {
  padding: 84px 0
}

.section-head {
  text-align: center;
  margin-bottom: 36px
}

.section-head h2 {
  font-size: clamp(30px, 3.3vw, 42px);
  margin: 12px 0
}

.section-head p {
  color: var(--muted)
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px
}

.card {
  padding: 34px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 4px 20px #172c2209
}

.card h3 {
  font-size: 24px;
  margin: 16px 0 10px
}

.card p {
  color: var(--muted);
  line-height: 1.8
}

.num {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: #e8fff5;
  color: #008f71;
  font-weight: 800
}

.alt {
  background: #f7faf9
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px
}

.step {
  background: #fff;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 16px
}

.step b {
  font-size: 28px;
  color: #00b78f
}

.step h3 {
  font-size: 18px
}

.step p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7
}

.cta {
  border-radius: 24px;
  background: #eef7f2;
  padding: 56px;
  text-align: center
}

.cta h2 {
  font-size: 40px;
  margin: 0 0 14px
}

.cta p {
  color: var(--muted);
  margin-bottom: 28px
}

footer {
  background: #1a1a1a;
  color: #bbb;
  padding: 52px 0
}

.foot {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center
}

footer .logo {
  color: #fff
}

dialog {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  width: min(90vw, 520px);
  box-shadow: 0 20px 70px #0003
}

dialog::backdrop {
  background: #081b1799
}

dialog h2 {
  margin-top: 0
}

dialog p {
  color: var(--muted);
  line-height: 1.7
}

dialog label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin: 16px 0
}

dialog input,
dialog textarea {
  display: block;
  width: 100%;
  margin-top: 7px;
  padding: 12px;
  border: 1px solid #dfe9e5;
  border-radius: 8px;
  font: inherit
}

dialog .close {
  float: right;
  border: 0;
  background: none
}

.note {
  font-size: 12px;
  color: #999
}

@media(max-width:760px) {
  .nav {
    gap: 10px
  }

  .nav nav {
    overflow-x: auto;
    white-space: nowrap;
    min-width: 0;
    flex: 1;
    scrollbar-width: none
  }

  .nav .btn {
    display: none
  }

  .grid,
  .steps {
    grid-template-columns: 1fr
  }

  .hero {
    padding: 64px 0
  }

  .cta {
    padding: 36px 24px
  }

  .cta h2 {
    font-size: 30px
  }

  .foot {
    display: block
  }
}

/* final navigation polish */
header {
  position: sticky;
  top: 16px;
  background: transparent;
  border: 0;
  backdrop-filter: none;
  padding: 0 24px;
  z-index: 50
}

.nav {
  height: 64px;
  padding: 0 18px;
  position: relative
}

.nav:after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: 22px;
  background: rgba(255, 255, 255, .88);
  border: 1px solid #e4eeeb;
  box-shadow: 0 10px 34px rgba(29, 62, 70, .1);
  backdrop-filter: blur(20px)
}

.logo {
  font-size: 24px;
  letter-spacing: -.04em
}

nav {
  gap: 22px;
  font-size: 13px
}

nav a {
  padding: 8px 2px;
  transition: color .2s, transform .2s
}

nav a:hover {
  transform: translateY(-1px)
}

.nav-actions {
  gap: 8px
}

.nav-actions .btn {
  padding: 9px 14px;
  border-radius: 10px;
  font-size: 11px;
  line-height: 1;
  font-weight: 700
}

.nav-actions .btn.login {
  background: #f5fffc
}

.nav-actions .btn.green {
  color: #fff
}

.hero {
  padding-top: 64px
}

@media(max-width:960px) {
  header {
    top: 10px;
    padding: 0 14px
  }

  .nav {
    padding: 0 14px
  }

  .nav-actions .btn {
    font-size: 10px;
    padding: 9px 11px
  }
}

@media(max-width:640px) {
  header {
    top: 8px;
    padding: 0 10px
  }

  .nav {
    height: 58px;
    padding: 0 10px
  }

  .logo {
    font-size: 22px
  }

  .nav-actions .btn {
    font-size: 10px;
    padding: 8px 9px
  }

  .nav-actions .btn.login {
    display: none
  }
}

/* ---------- wb-align ---------- */
:root {
  --ink: #1a1a1a;
  --soft: #646464;
  --dim: #646464;
  --line: #f2f4f8;
  --green: #4cc39a;
  --text-brand: #1b9668;
  --canvas: #fff;
  --panel: #fff;
  --side: #f7f8fa
}

html {
  scroll-padding-top: 80px
}

body {
  background: #fff;
  color: #1a1a1a;
  font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  font-weight: 400;
  padding-top: 65px;
  -webkit-font-smoothing: antialiased
}

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 65px;
  background: rgba(255, 255, 255, .85);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  border-bottom: 1px solid #f2f4f8;
  box-shadow: none;
  padding: 0;
  z-index: 1100
}

.nav {
  max-width: 1436px;
  margin: 0 auto;
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 28px
}

.nav:after {
  display: none
}

.logo {
  font-size: 20px;
  font-weight: 700;
  color: #1a1a1a;
  letter-spacing: -.02em;
  flex: 0 0 auto
}

.logo b {
  color: #1b9668
}

nav {
  display: flex;
  gap: 28px;
  font-size: 14px;
  font-weight: 500;
  color: #646464;
  margin-left: 4px
}

nav a {
  position: relative;
  color: #646464;
  padding: 6px 0;
  transition: color .3s
}

nav a:after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1.5px;
  width: 0;
  background: #1b9668;
  transition: width .3s
}

nav a:hover {
  color: #1a1a1a
}

nav a:hover:after {
  width: 100%
}

nav a[aria-current] {
  color: #1b9668
}

nav a[aria-current]:after {
  width: 100%
}

.nav-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 16px
}

.nav-actions .btn {
  height: 40px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 500;
  padding: 10px 20px;
  display: inline-flex;
  align-items: center;
  line-height: 1;
  transition: background .3s, color .3s, opacity .3s
}

.nav-actions .btn.login {
  background: transparent;
  color: #1a1a1a;
  border: 0
}

.nav-actions .btn.login:hover {
  background: rgba(0, 0, 0, .05);
  color: #1a1a1a
}

.nav-actions .btn.green {
  background: #1a1a1a;
  color: #fff;
  border: 0
}

.nav-actions .btn.green:hover {
  background: #000;
  color: #fff;
  opacity: 1;
  box-shadow: none
}

.btn {
  border-radius: 999px;
  font-weight: 500;
  transition: transform .3s, box-shadow .3s, background .3s, color .3s
}

.btn:hover {
  transform: translateY(-2px)
}

.btn.green {
  background: #1b9668;
  color: #fff
}

.btn.green:hover {
  background: #007a60;
  color: #fff;
  box-shadow: 0 6px 18px rgba(0, 146, 115, .22)
}

h1 {
  font-size: clamp(38px, 6vw, 64px);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: #1a1a1a
}

h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: -.02em;
  color: #1a1a1a
}

h3 {
  font-weight: 500;
  color: #1a1a1a;
  letter-spacing: -.01em
}

.kicker {
  color: #1b9668;
  font-weight: 500;
  letter-spacing: .08em;
  font-size: 13px
}

.lead {
  color: #646464;
  font-weight: 300;
  line-height: 1.75
}

.sub {
  color: #646464;
  font-weight: 300
}

p {
  font-weight: 300
}

.hero {
  background: #fff;
  padding-top: 48px
}

.badge {
  background: #f1f7f4;
  color: #1b9668;
  border: 1px solid #ddf0ec;
  border-radius: 999px;
  font-weight: 400
}

.note {
  color: #a3a3a3;
  font-weight: 300
}

.panel,
.scene-panel,
.ecoai,
.ecoai-panel,
.band,
.dark,
.step,
.plan,
.join-band,
.faq {
  box-shadow: 0 1px 3px rgba(0, 0, 0, .04)
}

.tab[aria-selected=true] {
  color: #1b9668
}

.link {
  color: #1b9668
}

footer {
  background: #fafafa;
  color: #1a1a1a
}

footer .big {
  color: #1a1a1a;
  font-weight: 500
}

footer small {
  color: #a3a3a3;
  font-weight: 300
}

@media(max-width:960px) {
  body {
    padding-top: 60px
  }

  header {
    height: 60px
  }

  .nav {
    padding: 0 16px;
    gap: 14px
  }

  nav {
    display: none
  }

  .nav-actions .btn {
    height: 36px;
    padding: 8px 16px;
    font-size: 13px
  }
}

@media(max-width:640px) {
  body {
    padding-top: 56px
  }

  header {
    height: 56px
  }

  .nav {
    padding: 0 12px;
    height: 55px
  }

  .logo {
    font-size: 18px
  }

  .nav-actions {
    gap: 8px
  }

  .nav-actions .btn.login {
    display: none
  }

  .nav-actions .btn {
    height: 34px;
    padding: 8px 14px;
    font-size: 12px
  }
}

@media(prefers-reduced-motion:reduce) {
  * {
    transition: none !important;
    animation: none !important
  }
}

.wrap.nav,
header .wrap.nav {
  max-width: 1436px;
  margin: 0 auto;
  padding: 0 40px;
  width: 100%
}

.eco2 {
  position: relative;
  display: grid;
  grid-template-columns: auto 330px 1fr;
  gap: 20px;
  background: #f4f4f6;
  border-radius: 28px;
  padding: 40px;
  overflow: hidden
}

.eco2-chev {
  display: flex;
  flex-direction: column;
  gap: 10px;
  justify-content: center
}

.eco2-chev-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #fff;
  color: #6b7294;
  font-size: 12px;
  display: grid;
  place-items: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .08);
  transition: transform .3s, color .3s
}

.eco2-chev-btn:hover {
  transform: scale(1.1);
  color: #181c1f
}

.eco2-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: stretch
}

.eco2-tab {
  display: block;
  text-align: left;
  border: 0;
  padding: 0;
  background: none;
  color: #181c1f;
  cursor: pointer
}

.eco2-tab .eco2-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(107, 114, 148, .08);
  font-size: 16px;
  font-weight: 500;
  transition: background .35s, border-radius .35s, padding .35s
}

.eco2-tab .eco2-ic {
  display: grid;
  place-items: center;
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  border: 1.5px solid currentColor;
  border-radius: 50%;
  font-size: 12px;
  line-height: 1;
  font-weight: 400
}

.eco2-tab .eco2-desc {
  display: none;
  font-size: 13px;
  font-weight: 300;
  color: #3a3f45;
  line-height: 1.7;
  margin: 10px 4px 2px;
  max-width: 300px
}

.eco2-tab:hover .eco2-pill {
  background: rgba(107, 114, 148, .14)
}

.eco2-tab[aria-selected=true] .eco2-pill {
  border-radius: 24px 24px 0 0;
  background: rgba(107, 114, 148, .12);
  padding: 16px 16px 12px
}

.eco2-tab[aria-selected=true] .eco2-desc {
  display: block;
  background: rgba(107, 114, 148, .12);
  border-radius: 0 0 24px 24px;
  padding: 0 16px 18px;
  margin: 0;
  animation: fadein .45s ease
}

.eco2-stage {
  position: relative;
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center
}

.eco2-panel {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center
}

.eco2-shot {
  width: min(520px, 92%);
  aspect-ratio: 4/3;
  border-radius: 24px;
  background: linear-gradient(135deg, #eaf7f1, #eef5ff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  font-weight: 700;
  color: #1b9668;
  letter-spacing: .04em;
  white-space: nowrap;
  box-shadow: 0 30px 60px rgba(24, 28, 31, .12);
  animation: eco2float 5s ease-in-out infinite
}

.eco2-shot span {
  transform: rotate(-4deg)
}

@keyframes eco2float {

  0%,
  100% {
    transform: rotate(-4deg) translateY(0)
  }

  50% {
    transform: rotate(-3deg) translateY(-14px)
  }
}

.eco2-next {
  position: absolute;
  right: 6px;
  bottom: 6px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #181c1f;
  color: #fff;
  font-size: 18px;
  display: grid;
  place-items: center;
  transition: transform .3s, background .3s
}

.eco2-next:hover {
  transform: scale(1.08);
  background: #000
}

@media(max-width:960px) {
  .eco2 {
    grid-template-columns: 1fr;
    padding: 24px;
    gap: 16px
  }

  .eco2-chev {
    flex-direction: row;
    justify-content: flex-start
  }

  .eco2-stage {
    min-height: 280px
  }
}

footer {
  background: #0a0a0a;
  color: #bfbfbf;
  padding: 0 0 56px;
  margin-top: 80px
}

footer .wrap {
  max-width: none;
  padding: 0
}

.ft-top {
  display: flex;
  gap: 40px;
  padding: 80px 48px 64px;
  max-width: 1436px;
  margin: 0 auto;
  flex-wrap: wrap
}

.ft-brand {
  display: flex;
  flex-direction: column;
  gap: 22px;
  max-width: 320px
}

.ft-logo {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -.02em
}

.ft-logo b {
  color: #4cc39a
}

.ft-brand p {
  font-size: 13.5px;
  font-weight: 300;
  color: #bfbfbf;
  line-height: 1.8;
  margin: 0
}

.ft-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 120px
}

.ft-col h3 {
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  margin: 0
}

.ft-col a {
  font-size: 13.5px;
  font-weight: 300;
  color: #bfbfbf;
  transition: color .3s
}

.ft-col a:hover {
  color: #fff
}

.ft-bottom {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  padding: 26px 48px;
  font-size: 12px;
  font-weight: 300;
  color: #bfbfbf;
  max-width: 1436px;
  margin: 0 auto;
  border-top: 1px solid rgba(255, 255, 255, .08)
}

.ft-wordmark {
  max-width: 1436px;
  margin: 0 auto;
  padding: 8px 48px 0;
  font-size: clamp(64px, 12vw, 150px);
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 255, 255, .06);
  letter-spacing: -.02em;
  user-select: none
}

@media(max-width:960px) {
  .ft-top {
    padding: 56px 24px 40px;
    gap: 32px
  }

  .ft-bottom {
    padding: 20px 24px
  }

  .ft-wordmark {
    padding: 8px 24px 0
  }
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 10px;
  background: rgba(107, 114, 148, .08);
  color: #1a1a1a;
  font-size: 16px;
  place-items: center;
  cursor: pointer
}

@media(max-width:960px) {
  .nav-toggle {
    display: grid
  }

  nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 16px;
    right: 16px;
    flex-direction: column;
    background: #fff;
    border: 1px solid #f2f4f8;
    border-radius: 16px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, .1);
    padding: 10px;
    gap: 2px;
    z-index: 60
  }

  header.nav-open nav {
    display: flex
  }

  nav a {
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 15px
  }

  nav a:hover {
    background: #f7f8fa
  }

  nav a:after {
    display: none
  }
}

.center {
  text-align: center
}

.faq {
  max-width: 760px;
  margin: 36px auto 0
}

.faq details {
  border: 1px solid #f2f4f8;
  border-radius: 14px;
  background: #fff;
  margin-bottom: 12px;
  overflow: hidden
}

.faq summary {
  cursor: pointer;
  padding: 18px 22px;
  font-weight: 500;
  font-size: 15px;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px
}

.faq summary::-webkit-details-marker {
  display: none
}

.faq summary:after {
  content: "+";
  color: #1b9668;
  font-size: 18px;
  font-weight: 500
}

.faq details[open] summary:after {
  content: "–"
}

.faq details p {
  padding: 0 22px 18px;
  color: #646464;
  font-weight: 300;
  line-height: 1.8;
  margin: 0
}

.sec-h {
  font-size: 30px;
  font-weight: 500;
  margin: 0 0 10px;
  letter-spacing: -.02em
}

.sec-p {
  color: #646464;
  font-weight: 300;
  margin: 0 0 26px
}

.cols3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px
}

.cols3 .card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px
}

.cols3 .btn {
  margin-top: auto
}

@media(max-width:900px) {
  .cols3 {
    grid-template-columns: 1fr
  }
}

dialog {
  border: 0;
  border-radius: 16px;
  padding: 28px;
  max-width: 420px;
  width: calc(100% - 40px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .2)
}

dialog::backdrop {
  background: rgba(0, 0, 0, .4)
}

dialog h2 {
  margin: 0 0 8px;
  font-size: 20px
}

dialog .close {
  float: right;
  border: 0;
  background: none;
  color: #646464;
  cursor: pointer
}

dialog label {
  display: block;
  font-size: 13px;
  color: #646464;
  margin-bottom: 12px
}

dialog input,
dialog textarea {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px;
  border: 1px solid #dfe9e5;
  border-radius: 8px;
  font: inherit
}

dialog .btn {
  width: 100%
}

#toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  background: #1a1a1a;
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 13px;
  z-index: 99
}

/* ---------- hero-bg ---------- */
.hero {
  background: radial-gradient(680px 320px at 50% 0%, #dcf8f0 0%, rgba(220, 248, 240, 0) 64%), linear-gradient(160deg, #eef7f2 0%, #ffffff 74%)
}

a.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none
}

/* ---------- card-hover ---------- */
.card {
  transition: transform .3s, box-shadow .3s, background .3s, border-color .3s
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0, 146, 115, .14);
  background: #f1f7f4;
  border-color: #bfe3d2
}

.step {
  transition: transform .3s, box-shadow .3s, background .3s, border-color .3s
}

.step:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0, 146, 115, .14);
  background: #f1f7f4;
  border-color: #bfe3d2
}

/* ---------- seg-css ---------- */
.seg {
  display: flex;
  gap: 10px;
  margin: -6px 0 14px
}

.seg-opt {
  position: relative;
  flex: 1
}

.seg-opt input {
  position: absolute;
  opacity: 0;
  inset: 0;
  cursor: pointer
}

.seg-opt span {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 14px;
  border: 1.5px solid #d9e5e1;
  border-radius: 999px;
  font-size: 14px;
  color: #1a1a1a;
  cursor: pointer;
  transition: all .25s;
  user-select: none
}

.seg-opt span:before {
  content: //;width:14px;height:14px;border-radius:50%;border:1.5px solid #c2ccc9;transition:all .25s;flex:0 0 14px}.seg-opt input:checked+span{border-color:#22b07c;background:#f1f7f4;color:#1b9668;font-weight:500}.seg-opt input:checked+span:before{border-color:#22b07c;background:#22b07c;box-shadow:inset 0 0 0 3px #fff}.seg-opt input:focus-visible+span{outline:3px solid rgba(0,194,154,.3);outline-offset:2px}.seg-opt input:required:not(:checked){}

/* ===== 首屏插图：贴齐首屏顶部（同 academy） ===== */
.hero-anim {
  top: 0 !important
}