:root {
  --green-950: #123c2d;
  --green-900: #184735;
  --green-800: #205a43;
  --green-700: #2f7255;
  --green-500: #5b9a74;
  --green-200: #dbeadd;
  --green-100: #eff6ef;
  --cream: #fafbf7;
  --paper: #ffffff;
  --ink: #1f2c27;
  --muted: #6e7e76;
  --line: #e3ebe5;
  --shadow: 0 18px 50px rgba(18, 60, 45, 0.10);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1180px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.75;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

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

button, input, textarea {
  font: inherit;
}

.container {
  width: min(calc(100% - 48px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(250, 251, 247, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(227, 235, 229, 0.8);
  transition: box-shadow .3s ease, background .3s ease;
}

.site-header.scrolled {
  box-shadow: 0 10px 30px rgba(31, 44, 39, .06);
  background: rgba(255, 255, 255, 0.94);
}

.nav-wrap {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: white;
  background: var(--green-800);
  font-size: 20px;
  font-weight: 800;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.12);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.18;
}

.brand-text strong {
  font-size: 19px;
  letter-spacing: .04em;
}

.brand-text small {
  margin-top: 5px;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .05em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  position: relative;
  font-size: 14px;
  color: #405148;
  transition: color .2s ease;
}

.main-nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -8px;
  width: 0;
  height: 2px;
  background: var(--green-700);
  transition: .25s ease;
  transform: translateX(-50%);
}

.main-nav a:not(.nav-cta):hover {
  color: var(--green-800);
}

.main-nav a:not(.nav-cta):hover::after {
  width: 100%;
}

.nav-cta {
  color: #fff !important;
  background: var(--green-800);
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 10px;
  background: var(--paper);
  box-shadow: 0 4px 18px rgba(31,44,39,.08);
  padding: 11px 10px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--green-900);
  margin: 4px 0;
  transition: .25s ease;
}

.hero {
  position: relative;
  min-height: 690px;
  display: flex;
  align-items: center;
  background:
    radial-gradient(circle at 76% 18%, rgba(132, 179, 144, .16), transparent 31%),
    linear-gradient(180deg, #fbfcf8 0%, #f3f8f2 100%);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .24;
  background-image: linear-gradient(rgba(32,90,67,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(32,90,67,.055) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.9), transparent 90%);
}

.hero-decoration {
  position: absolute;
  border: 1px solid rgba(32, 90, 67, .10);
  border-radius: 50%;
}

.hero-decoration-one {
  width: 420px;
  height: 420px;
  right: -180px;
  top: 90px;
}

.hero-decoration-two {
  width: 250px;
  height: 250px;
  right: 40px;
  bottom: -120px;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.18fr .82fr;
  align-items: center;
  gap: 70px;
  padding: 96px 0;
}

.eyebrow,
.section-kicker {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--green-700);
  text-transform: uppercase;
}

.hero h1 {
  margin: 22px 0 24px;
  font-size: clamp(46px, 5.3vw, 74px);
  line-height: 1.15;
  letter-spacing: -.03em;
  color: #183a2d;
}

.hero h1 span {
  color: var(--green-700);
}

.hero-lead {
  max-width: 690px;
  font-size: 18px;
  color: #55675e;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

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

.btn-primary {
  background: var(--green-800);
  color: white;
  box-shadow: 0 12px 24px rgba(32, 90, 67, .18);
}

.btn-light {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.75);
  color: var(--green-900);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.hero-tags span,
.major-tags span {
  border: 1px solid #dce8de;
  background: rgba(255,255,255,.7);
  color: #4f675b;
  border-radius: 999px;
  padding: 7px 13px;
  font-size: 12px;
}

.hero-panel {
  position: relative;
  min-height: 430px;
  padding: 42px 38px;
  border-radius: 34px;
  background: linear-gradient(145deg, #214f3c, #123c2d);
  color: white;
  box-shadow: 0 30px 80px rgba(18, 60, 45, .22);
  overflow: hidden;
}

.hero-panel::after {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 50%;
  right: -90px;
  top: -80px;
}

.panel-label {
  display: inline-flex;
  background: rgba(255,255,255,.10);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  color: #dfece4;
}

.hero-panel h2 {
  margin: 26px 0 16px;
  font-size: 34px;
  line-height: 1.25;
}

.hero-panel > p {
  max-width: 380px;
  color: #d3e3d8;
  font-size: 15px;
}

.panel-stats {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 10px;
  margin-top: 44px;
  position: relative;
  z-index: 2;
}

.panel-stats div {
  min-height: 105px;
  border-radius: 18px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.10);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.panel-stats strong {
  font-size: 25px;
  letter-spacing: .04em;
}

.panel-stats span {
  margin-top: 4px;
  color: #d7e5dc;
  font-size: 12px;
}

.leaf-lines i {
  position: absolute;
  display: block;
  width: 130px;
  height: 70px;
  border: 1px solid rgba(184, 221, 191, .2);
  border-radius: 100% 0 100% 0;
  transform: rotate(-30deg);
  bottom: -10px;
  right: 30px;
}

.leaf-lines i:nth-child(2) { right: 0; bottom: 36px; transform: rotate(8deg) scale(.8); }
.leaf-lines i:nth-child(3) { right: 85px; bottom: -30px; transform: rotate(-55deg) scale(.65); }

.section {
  padding: 112px 0;
}

.section-soft {
  background: var(--green-100);
}

.section-grid {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 90px;
}

.section-heading h2,
.section-title-left h2,
.section-title-center h2,
.values-copy h2 {
  margin-top: 15px;
  color: #183c2e;
  font-size: clamp(32px, 3.5vw, 48px);
  line-height: 1.3;
  letter-spacing: -.02em;
}

.section-content {
  font-size: 17px;
  color: #52665c;
}

.section-content p + p {
  margin-top: 22px;
}

.section-title-center {
  max-width: 760px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-title-left {
  max-width: 760px;
  margin-bottom: 52px;
}

.section-title-center p,
.section-title-left p,
.values-copy p {
  margin-top: 14px;
  color: var(--muted);
}

.cards {
  display: grid;
  gap: 20px;
}

.four-cols {
  grid-template-columns: repeat(4, 1fr);
}

.feature-card {
  min-height: 270px;
  padding: 30px 26px;
  border: 1px solid #dfe9e1;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,.78);
  box-shadow: 0 10px 30px rgba(32,90,67,.04);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: #c7dbc9;
  box-shadow: var(--shadow);
}

.icon-box {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--green-800);
  color: #fff;
  font-weight: 800;
}

.feature-card h3 {
  margin-top: 26px;
  font-size: 20px;
  color: var(--green-950);
}

.feature-card p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
}

.pain-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 52px;
  align-items: stretch;
}

.pain-list {
  display: grid;
  gap: 14px;
}

.pain-item {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 20px;
  align-items: start;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: white;
}

.pain-item > span {
  font-weight: 800;
  font-size: 14px;
  color: var(--green-700);
  letter-spacing: .08em;
}

.pain-item h3 {
  font-size: 18px;
  color: var(--green-950);
}

.pain-item p {
  margin-top: 5px;
  color: var(--muted);
  font-size: 14px;
}

.pain-quote {
  position: relative;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 42px;
  border-radius: 28px;
  background: linear-gradient(160deg, #dbeadd 0%, #edf5ec 100%);
  overflow: hidden;
}

.pain-quote::before {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  border: 1px solid rgba(32,90,67,.12);
  left: -130px;
  top: -90px;
}

.pain-quote > span {
  position: absolute;
  top: 30px;
  left: 36px;
  font-size: 100px;
  line-height: 1;
  color: rgba(32,90,67,.18);
  font-family: Georgia, serif;
}

.pain-quote p {
  position: relative;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--green-950);
}

.pain-quote small {
  position: relative;
  margin-top: 18px;
  color: var(--green-700);
}

.section-dark {
  background: var(--green-950);
  color: white;
}

.section-title-center.light h2,
.section-title-center.light p {
  color: white;
}

.section-title-center.light p {
  opacity: .68;
}

.section-title-center.light .section-kicker {
  color: #a9c8b4;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.service-card {
  min-height: 240px;
  padding: 28px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.055);
  transition: background .25s ease, transform .25s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,.09);
}

.service-card > span {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  color: #8fb49d;
}

.service-card h3 {
  margin-top: 34px;
  font-size: 21px;
}

.service-card p {
  margin-top: 10px;
  color: rgba(255,255,255,.62);
  font-size: 14px;
}

.service-card.wide {
  min-height: auto;
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 70px 1fr;
  align-items: center;
}

.service-card.wide h3 {
  margin-top: 0;
}

.school-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.school-strip span {
  padding: 16px 20px;
  border: 1px solid var(--line);
  background: white;
  border-radius: 14px;
  font-weight: 600;
  color: #315545;
  box-shadow: 0 8px 22px rgba(31,44,39,.035);
}

.major-box {
  margin-top: 38px;
  padding: 34px;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 26px;
  align-items: center;
  border-radius: 24px;
  background: var(--green-100);
}

.major-box h3 {
  margin-top: 9px;
  font-size: 24px;
  color: var(--green-950);
}

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

.major-tags span {
  background: white;
}

.values-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 90px;
  align-items: center;
}

.values-points {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: 14px;
}

.values-points div {
  min-height: 140px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 24px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 18px;
}

.values-points strong {
  color: #9ab8a3;
  font-size: 13px;
}

.values-points span {
  color: var(--green-950);
  font-size: 17px;
  font-weight: 700;
}

.cta-section {
  padding: 78px 0 110px;
  background: var(--green-100);
}

.cta-card {
  min-height: 285px;
  padding: 52px 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  border-radius: 32px;
  background: linear-gradient(135deg, #245c45, #123c2d);
  color: white;
  box-shadow: 0 28px 60px rgba(18,60,45,.18);
}

.cta-card .section-kicker {
  color: #a9c8b4;
}

.cta-card h2 {
  margin-top: 12px;
  font-size: clamp(30px, 3.4vw, 46px);
  line-height: 1.3;
}

.cta-card p {
  margin-top: 12px;
  color: rgba(255,255,255,.68);
}

.btn-white {
  background: white;
  color: var(--green-950);
  min-width: 150px;
}

.site-footer {
  background: #0f2f24;
  color: white;
  padding: 44px 0;
}

.footer-wrap {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 30px;
  align-items: center;
}

.footer-brand .brand-mark {
  background: rgba(255,255,255,.12);
}

.footer-brand .brand-text small,
.site-footer p {
  color: rgba(255,255,255,.55);
  font-size: 12px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 30px;
  z-index: 2000;
  transform: translate(-50%, 22px);
  background: #173e30;
  color: white;
  padding: 12px 18px;
  border-radius: 999px;
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transition: .25s ease;
  box-shadow: 0 16px 40px rgba(18,60,45,.20);
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: .08s; }
.delay-2 { transition-delay: .16s; }
.delay-3 { transition-delay: .24s; }
.delay-4 { transition-delay: .32s; }

@media (max-width: 1024px) {
  .main-nav { gap: 16px; }
  .main-nav a { font-size: 13px; }
  .hero-grid { gap: 36px; }
  .four-cols { grid-template-columns: repeat(2,1fr); }
  .service-grid { grid-template-columns: repeat(2,1fr); }
  .service-card.wide { grid-column: 1 / -1; }
  .footer-wrap { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
  .container { width: min(calc(100% - 32px), var(--container)); }

  .menu-toggle { display: block; }

  .main-nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    height: calc(100vh - 76px);
    padding: 34px 24px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    background: rgba(250,251,247,.98);
    backdrop-filter: blur(18px);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: .25s ease;
  }

  .main-nav.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .main-nav a {
    font-size: 17px;
    padding: 14px 8px;
    border-bottom: 1px solid var(--line);
  }

  .nav-cta {
    margin-top: 12px;
    text-align: center;
    border-bottom: 0 !important;
  }

  .menu-toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .menu-toggle.active span:nth-child(2) { opacity: 0; }
  .menu-toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

  .hero { min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; padding: 76px 0 88px; }
  .hero-copy { text-align: left; }
  .hero h1 { font-size: clamp(42px, 11vw, 62px); }
  .hero-panel { min-height: 360px; }

  .section { padding: 82px 0; }
  .section-grid,
  .pain-grid,
  .values-grid,
  .major-box {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .pain-quote { min-height: 360px; }
  .cta-card { padding: 42px 34px; flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px) {
  .nav-wrap { min-height: 68px; }
  .main-nav { top: 68px; height: calc(100vh - 68px); }
  .brand-mark { width: 38px; height: 38px; }
  .brand-text strong { font-size: 17px; }
  .brand-text small { font-size: 10px; }

  .hero-grid { padding: 62px 0 70px; }
  .eyebrow { font-size: 10px; line-height: 1.6; }
  .hero h1 { font-size: 42px; margin-top: 18px; }
  .hero-lead { font-size: 16px; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .hero-panel { padding: 30px 24px; border-radius: 24px; }
  .hero-panel h2 { font-size: 28px; }
  .panel-stats { gap: 7px; }
  .panel-stats div { min-height: 88px; }

  .section { padding: 68px 0; }
  .four-cols,
  .service-grid,
  .values-points {
    grid-template-columns: 1fr;
  }
  .feature-card { min-height: auto; }
  .pain-item { grid-template-columns: 42px 1fr; padding: 20px 18px; gap: 10px; }
  .pain-quote { min-height: 320px; padding: 30px 24px; }
  .pain-quote p { font-size: 25px; }

  .service-card.wide {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .service-card.wide h3 { margin-top: 8px; }
  .major-box { padding: 26px 22px; }
  .cta-section { padding: 50px 0 76px; }
  .cta-card { padding: 34px 24px; border-radius: 24px; }
  .toast { max-width: calc(100% - 32px); width: max-content; text-align: center; border-radius: 14px; }
}