:root {
  --green: #007a50;
  --deep: #004b38;
  --leaf: #1d9d72;
  --mint: #e9f5ee;
  --cream: #fbfaf0;
  --paper: #ffffff;
  --ink: #10231f;
  --muted: #60746f;
  --gold: #c69b34;
  --blue: #2f78b7;
  --line: rgba(16, 35, 31, 0.14);
  --shadow: 0 24px 60px rgba(0, 75, 56, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--cream);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}

body.is-menu-open {
  overflow: hidden;
}

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

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

.site-header {
  position: fixed;
  inset: 22px 28px auto;
  z-index: 50;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.64);
  border-radius: 999px;
  background: rgba(251, 250, 240, 0.9);
  box-shadow: 0 16px 46px rgba(0, 75, 56, 0.12);
  backdrop-filter: blur(18px);
  transition: transform 0.24s ease, box-shadow 0.24s ease, background 0.24s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 18px 50px rgba(0, 75, 56, 0.18);
  transform: translateY(-6px);
}

.brand,
.nav-links,
.site-footer a {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-size: 15px;
  font-weight: 950;
  white-space: nowrap;
}

.brand img {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.nav-links {
  justify-content: center;
  gap: clamp(16px, 2.5vw, 34px);
  color: rgba(16, 35, 31, 0.66);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
}

.nav-links a {
  position: relative;
}

.nav-links a::after {
  position: absolute;
  right: 0;
  bottom: -6px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 950;
  white-space: nowrap;
}

.header-cta,
.button-primary {
  color: #fff;
  background: var(--green);
}

.button-ghost {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.58);
  background: rgba(255, 255, 255, 0.12);
}

.hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  color: #fff;
  background: var(--deep);
}

.hero-media,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-media {
  overflow: hidden;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.95) contrast(1.02);
  transform: scale(1.02);
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(0, 65, 48, 0.96) 0%, rgba(0, 65, 48, 0.8) 42%, rgba(0, 65, 48, 0.34) 100%),
    radial-gradient(circle at 74% 42%, rgba(255, 255, 255, 0.08), transparent 32%),
    linear-gradient(0deg, rgba(0, 35, 26, 0.6), rgba(0, 35, 26, 0.06));
}

.hero-copy {
  position: relative;
  z-index: 2;
  display: grid;
  align-content: center;
  min-height: 100vh;
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 126px 0 96px;
}

.hero-logo {
  width: 88px;
  height: 88px;
  margin-bottom: 30px;
  object-fit: contain;
}

.hero-kicker {
  margin: 0 0 12px;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(17px, 1.7vw, 24px);
  font-weight: 950;
}

.hero h1 {
  max-width: 920px;
  margin: 0;
  font-size: clamp(58px, 8.4vw, 136px);
  font-weight: 950;
  line-height: 0.96;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 680px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(18px, 2vw, 27px);
  font-weight: 800;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.hero-phrase {
  position: absolute;
  right: max(22px, calc((100vw - 1180px) / 2));
  bottom: 34px;
  z-index: 2;
  display: grid;
  justify-items: end;
  max-width: 48vw;
  color: rgba(255, 255, 255, 0.09);
  font-size: clamp(54px, 8vw, 130px);
  font-weight: 950;
  line-height: 0.9;
  text-align: right;
  pointer-events: none;
  transform: translateX(4%);
}

.scroll-cue {
  position: absolute;
  right: 30px;
  bottom: 28px;
  z-index: 3;
  writing-mode: vertical-rl;
  color: rgba(255, 255, 255, 0.78);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.section {
  padding: 116px 24px;
}

.section-inner {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.section-label {
  display: grid;
  gap: 8px;
}

.section-label.center {
  justify-items: center;
}

.section-label span {
  color: var(--green);
  font-size: 15px;
  font-weight: 950;
}

.section-label.light span,
.section-label.light h2 {
  color: #fff;
}

h2 {
  max-width: 880px;
  margin: 0;
  font-size: clamp(40px, 5.6vw, 80px);
  font-weight: 950;
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 28px;
  font-weight: 950;
  line-height: 1.25;
}

p {
  color: var(--muted);
  font-size: 18px;
}

.news {
  padding: 40px 24px;
  background: var(--paper);
}

.news-panel {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 44px;
  align-items: start;
}

.news h2 {
  font-size: 30px;
}

.news-list ol {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.news-list li {
  display: grid;
  grid-template-columns: 104px 1fr auto;
  gap: 18px;
  align-items: center;
  min-height: 48px;
  border-bottom: 1px solid var(--line);
  font-weight: 900;
}

.news-list time {
  color: var(--green);
  font-size: 14px;
}

.news-list b {
  padding: 2px 9px;
  border-radius: 999px;
  color: #fff;
  background: var(--green);
  font-size: 11px;
  line-height: 1.6;
}

.news-list details {
  margin-top: 16px;
}

.news-list summary {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--green);
  background: rgba(0, 122, 80, 0.05);
  cursor: pointer;
  font-size: 14px;
  font-weight: 950;
  list-style: none;
}

.news-list summary::-webkit-details-marker {
  display: none;
}

.news-list details ol {
  margin-top: 12px;
}

.about {
  background: var(--cream);
}

.about-grid {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: clamp(34px, 5vw, 70px);
  align-items: center;
}

.about-copy {
  display: grid;
  gap: 32px;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: start;
}

.lead-copy p {
  max-width: 680px;
  margin: 0 0 22px;
  color: var(--ink);
  font-size: clamp(21px, 2vw, 28px);
  font-weight: 850;
  line-height: 1.62;
}

.lead-copy p + p {
  color: var(--muted);
  font-size: clamp(17px, 1.7vw, 21px);
  font-weight: 650;
}

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

.about-points span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 16px;
  border: 1px solid rgba(0, 122, 80, 0.18);
  border-radius: 999px;
  color: var(--green);
  background: rgba(0, 122, 80, 0.07);
  font-size: 14px;
  font-weight: 950;
}

.about-video {
  display: grid;
  gap: 14px;
}

.about-video video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(0, 75, 56, 0.18);
  border-radius: 8px;
  background: var(--deep);
  box-shadow: var(--shadow);
  object-fit: cover;
}

.about-video p {
  margin: 0;
  color: var(--green);
  font-size: 14px;
  font-weight: 950;
}

.strengths {
  padding: 116px 0 112px;
  background: var(--mint);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 56px;
}

.feature-card {
  position: relative;
  min-height: 390px;
  overflow: hidden;
  border-radius: 8px;
  background: var(--deep);
  box-shadow: var(--shadow);
  isolation: isolate;
}

.feature-card::before {
  position: absolute;
  inset: 0;
  z-index: 1;
  content: "";
  background:
    linear-gradient(180deg, rgba(0, 36, 27, 0.08), rgba(0, 36, 27, 0.84)),
    linear-gradient(90deg, rgba(0, 54, 40, 0.78), rgba(0, 54, 40, 0.18));
}

.feature-card img,
.guide-grid figure img,
.gallery-scroll img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.28s ease;
}

.feature-card:hover img,
.gallery-scroll figure:hover img {
  transform: scale(1.035);
}

.feature-card img {
  position: absolute;
  inset: 0;
  filter: saturate(0.94) contrast(1.03);
}

.feature-card-copy {
  position: relative;
  z-index: 2;
  display: flex;
  min-height: 390px;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(24px, 3vw, 38px);
  color: #fff;
}

.feature-card-copy span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: auto;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 50%;
  color: #fff;
  background: rgba(0, 122, 80, 0.46);
  font-size: 18px;
  font-weight: 950;
  backdrop-filter: blur(10px);
}

.feature-card-copy h3 {
  margin-top: 110px;
  color: #fff;
  font-size: clamp(28px, 3vw, 44px);
  line-height: 1.12;
}

.feature-card-copy p {
  max-width: 460px;
  margin: 16px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 17px;
  font-weight: 750;
}

.school-guide {
  background: var(--cream);
}

.guide-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  align-items: center;
}

.guide-grid p {
  max-width: 470px;
  margin-top: 26px;
  font-weight: 700;
}

.guide-grid figure {
  height: 480px;
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.curriculum,
.gallery {
  background: var(--cream);
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 52px;
}

.course-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-top: 8px solid var(--green);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
}

.course-card:nth-child(2) {
  border-top-color: var(--gold);
}

.course-card:nth-child(3) {
  border-top-color: var(--blue);
}

.course-card summary {
  display: flex;
  flex-direction: column;
  padding: 30px 28px;
  cursor: pointer;
  list-style: none;
}

.course-card summary::-webkit-details-marker {
  display: none;
}

.course-card span {
  color: var(--green);
  font-size: 14px;
  font-weight: 950;
}

.course-card h3 {
  margin-top: 18px;
  font-size: 28px;
}

.course-card p {
  margin: 16px 0 24px;
  font-size: 15px;
  font-weight: 700;
}

.course-card b {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 38px;
  margin-top: 8px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--green);
  background: rgba(0, 122, 80, 0.05);
  font-size: 14px;
  font-weight: 950;
}

.course-card[open] b {
  color: #fff;
  background: var(--green);
}

.course-card[open] summary {
  padding-bottom: 22px;
}

.course-card ol {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0 28px 30px 48px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
}

.why {
  background: var(--mint);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 48px;
}

.stats article {
  display: flex;
  position: relative;
  min-height: 164px;
  flex-direction: column;
  justify-content: center;
  padding: 28px 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(232, 246, 239, 0.78));
  box-shadow: 0 18px 42px rgba(0, 75, 56, 0.1);
  overflow: hidden;
  text-align: center;
}

.stats article::before {
  position: absolute;
  top: 0;
  right: 24px;
  left: 24px;
  height: 4px;
  content: "";
  border-radius: 0 0 999px 999px;
  background: linear-gradient(90deg, var(--green), rgba(0, 122, 80, 0.16));
}

.stats strong {
  color: var(--green);
  font-size: clamp(22px, 2vw, 30px);
  font-weight: 950;
  line-height: 1.18;
  text-align: center;
}

.stats span {
  display: block;
  margin-top: 12px;
  color: var(--ink);
  font-size: 16px;
  font-weight: 850;
  line-height: 1.5;
}

.gallery-scroll {
  display: grid;
  grid-auto-columns: minmax(320px, 46%);
  grid-auto-flow: column;
  gap: 18px;
  margin-top: 48px;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  padding: 0 0 18px;
  scroll-snap-type: x mandatory;
}

.gallery-scroll figure {
  height: 360px;
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
  scroll-snap-align: start;
}

.gallery-scroll::-webkit-scrollbar {
  height: 8px;
}

.gallery-scroll::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(0, 122, 80, 0.32);
}

.join {
  color: #fff;
  background:
    linear-gradient(90deg, rgba(0, 75, 56, 0.96), rgba(0, 75, 56, 0.8)),
    url("assets/qingmeng-join-bg-generated.png") center / cover;
}

.join-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 60px;
  align-items: center;
}

.join p {
  max-width: 640px;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(18px, 1.8vw, 23px);
  font-weight: 750;
}

.join-card {
  display: grid;
  justify-items: center;
  gap: 14px;
  padding: 38px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.14);
  box-shadow: 0 24px 70px rgba(0, 28, 21, 0.24);
  backdrop-filter: blur(16px);
}

.join-card img {
  width: min(100%, 258px);
  padding: 12px;
  border-radius: 8px;
  background: #fff;
}

.join-card h3 {
  color: #fff;
  font-size: 34px;
}

.join-card span {
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  font-weight: 900;
  text-align: center;
}

.site-footer {
  display: grid;
  justify-items: center;
  gap: 12px;
  padding: 38px 24px;
  color: var(--muted);
  background: var(--cream);
  text-align: center;
}

.site-footer a {
  gap: 10px;
  color: var(--ink);
  font-weight: 950;
}

.site-footer img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

@media (max-width: 980px) {
  .site-header {
    display: flex;
    justify-content: space-between;
  }

  .nav-links {
    display: none;
  }

  .hero-copy {
    min-height: 92vh;
    padding-top: 116px;
  }

  .hero-phrase {
    display: none;
  }

  .news-panel,
  .about-grid,
  .split,
  .guide-grid,
  .join-grid {
    grid-template-columns: 1fr;
  }

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

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

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

@media (max-width: 640px) {
  body {
    line-height: 1.62;
  }

  .site-header {
    inset: 10px 10px auto;
    padding: 8px 10px;
    border-radius: 18px;
  }

  .brand {
    min-width: 0;
    gap: 9px;
  }

  .brand img {
    width: 34px;
    height: 34px;
  }

  .brand span {
    max-width: 126px;
    overflow: hidden;
    font-size: 15px;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .header-cta {
    min-height: 36px;
    padding: 0 12px;
    font-size: 14px;
  }

  .hero-copy {
    width: min(100% - 36px, 1180px);
    min-height: 100svh;
    padding: 92px 0 54px;
  }

  .hero-logo {
    width: 64px;
    height: 64px;
    margin-bottom: 22px;
  }

  .hero h1 {
    max-width: 8em;
    font-size: clamp(38px, 12vw, 54px);
    line-height: 1.02;
  }

  .hero-lead,
  .hero-kicker {
    font-size: 16px;
  }

  .hero-lead {
    max-width: 21em;
    margin-top: 18px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    max-width: 280px;
    margin-top: 28px;
  }

  .button {
    min-height: 44px;
    padding: 0 18px;
  }

  .scroll-cue {
    display: none;
  }

  .section {
    padding: 72px 18px;
  }

  .about-grid {
    gap: 28px;
  }

  .about-copy {
    gap: 24px;
  }

  .about-video video {
    border-radius: 8px;
  }

  h2 {
    font-size: clamp(34px, 10vw, 48px);
    line-height: 1.1;
  }

  p {
    font-size: 16px;
  }

  .news {
    padding: 34px 18px;
  }

  .news-list li {
    grid-template-columns: 1fr auto;
    gap: 2px 10px;
    padding: 10px 0;
  }

  .news-list time {
    grid-column: 1 / -1;
  }

  .feature-grid {
    width: calc(100% - 36px);
    gap: 14px;
    margin-top: 34px;
  }

  .feature-card,
  .feature-card-copy {
    min-height: 280px;
  }

  .guide-grid figure {
    height: 300px;
    min-height: 300px;
  }

  .feature-card-copy {
    padding: 22px;
  }

  .feature-card-copy span {
    width: 44px;
    height: 44px;
    font-size: 15px;
  }

  .feature-card-copy h3 {
    margin-top: 64px;
    font-size: 28px;
  }

  .feature-card-copy p {
    font-size: 15px;
    line-height: 1.65;
  }

  .guide-grid {
    gap: 30px;
  }

  .guide-grid p {
    margin-top: 18px;
  }

  .course-grid {
    gap: 14px;
    margin-top: 34px;
  }

  .course-card summary {
    padding: 24px 22px;
  }

  .course-card h3 {
    font-size: 24px;
  }

  .course-card p,
  .course-card ol {
    font-size: 14px;
  }

  .course-card ol {
    padding: 0 22px 24px 42px;
  }

  .stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 34px;
  }

  .stats article {
    min-height: 124px;
    padding: 18px 14px;
    background: rgba(255, 255, 255, 0.86);
  }

  .stats article::before {
    right: 14px;
    left: 14px;
    height: 3px;
  }

  .stats strong {
    font-size: clamp(18px, 5vw, 22px);
    line-height: 1.18;
  }

  .stats span {
    margin-top: 9px;
    font-size: 12px;
    line-height: 1.42;
  }

  .gallery-scroll {
    grid-auto-columns: 82%;
    gap: 12px;
    margin-top: 32px;
  }

  .gallery-scroll figure {
    height: 240px;
  }

  .join-card {
    padding: 26px;
  }

  .join-card img {
    width: min(100%, 220px);
  }
}

@media (max-width: 390px) {
  .brand span {
    max-width: 108px;
  }

  .hero h1 {
    font-size: 36px;
  }
}