:root {
  --bg: #f4efe7;
  --bg-soft: #fbf8f2;
  --ink: #15352f;
  --ink-soft: #47655d;
  --line: rgba(21, 53, 47, 0.14);
  --card: rgba(255, 252, 247, 0.8);
  --accent: #1d7a67;
  --accent-deep: #0f5b4c;
  --accent-warm: #d8a25e;
  --shadow: 0 20px 60px rgba(21, 53, 47, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Avenir Next", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(216, 162, 94, 0.2), transparent 28%),
    radial-gradient(circle at 85% 10%, rgba(29, 122, 103, 0.18), transparent 22%),
    linear-gradient(180deg, #f8f4ee 0%, #efe8db 100%);
}

body.lightbox-open {
  overflow: hidden;
}

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

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

.page-shell {
  position: relative;
  overflow: hidden;
}

.page-shell::before,
.page-shell::after {
  content: "";
  position: fixed;
  z-index: 0;
  inset: auto;
  width: 26rem;
  height: 26rem;
  border-radius: 999px;
  filter: blur(70px);
  opacity: 0.28;
  pointer-events: none;
}

.page-shell::before {
  top: -8rem;
  right: -8rem;
  background: rgba(29, 122, 103, 0.3);
}

.page-shell::after {
  bottom: 10rem;
  left: -10rem;
  background: rgba(216, 162, 94, 0.28);
}

.hero,
.section,
.footer {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  padding: 28px 0 72px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 18px;
  background: rgba(255, 252, 247, 0.62);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 999px;
  backdrop-filter: blur(20px);
  box-shadow: 0 16px 40px rgba(21, 53, 47, 0.08);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #fff;
  font-family: "Noto Serif SC", "Source Han Serif SC", "STSong", serif;
  font-size: 1.2rem;
  box-shadow: 0 12px 24px rgba(15, 91, 76, 0.25);
}

.brand-name,
.brand-subtitle {
  margin: 0;
}

.brand-name {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-subtitle {
  margin-top: 4px;
  color: var(--ink-soft);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.top-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(29, 122, 103, 0.1);
  color: var(--accent-deep);
  font-size: 0.92rem;
  font-weight: 700;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 30px;
  align-items: stretch;
  margin-top: 34px;
}

.hero-copy,
.hero-panel {
  animation: rise 0.9s ease both;
}

.hero-copy {
  padding: 30px 0 8px;
}

.eyebrow,
.section-kicker,
.panel-label {
  margin: 0 0 14px;
  color: var(--accent-deep);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1,
.section h2,
.hero-panel h2,
.intro-card h3,
.timeline-item h3,
.qr-card h3,
.qualification-caption h3,
.contact-item h3 {
  font-family: "Noto Serif SC", "Source Han Serif SC", "STSong", serif;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.6rem, 4.8vw, 5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  max-width: 12ch;
}

.hero-text {
  max-width: 58ch;
  margin: 22px 0 0;
  color: var(--ink-soft);
  font-size: 1.04rem;
  line-height: 1.85;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

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

.button-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #fff;
  box-shadow: 0 16px 30px rgba(15, 91, 76, 0.22);
}

.button-secondary {
  border: 1px solid var(--line);
  background: rgba(255, 252, 247, 0.72);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 34px 0 0;
  list-style: none;
}

.hero-tags li {
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 252, 247, 0.76);
  border: 1px solid rgba(21, 53, 47, 0.08);
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.hero-panel {
  display: grid;
  gap: 18px;
}

.panel-card {
  padding: 26px;
  border-radius: 30px;
  background: linear-gradient(180deg, rgba(255, 252, 247, 0.82), rgba(255, 255, 255, 0.66));
  border: 1px solid rgba(255, 255, 255, 0.58);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.panel-card-main {
  min-height: 320px;
}

.hero-panel h2 {
  margin: 0 0 24px;
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  line-height: 1.2;
}

.info-list {
  display: grid;
  gap: 18px;
  margin: 0;
}

.info-list div {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.info-list div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.info-list dt {
  margin-bottom: 8px;
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.info-list dd,
.panel-card-note p,
.intro-card p,
.qualification-caption p,
.timeline-item p,
.qr-card p,
.footer p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.8;
}

.section {
  padding: 32px 0 48px;
}

.section-heading {
  display: grid;
  gap: 12px;
  margin-bottom: 28px;
}

.section h2 {
  margin: 0;
  max-width: 18ch;
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1.18;
}

.intro-grid,
.qr-grid {
  display: grid;
  gap: 18px;
}

/* .intro-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
} */

.intro-card,
.timeline-item,
.qr-card,
.contact-card {
  padding: 24px;
  border-radius: 28px;
  background: rgba(255, 251, 246, 0.72);
  border: 1px solid rgba(21, 53, 47, 0.08);
  box-shadow: 0 18px 44px rgba(21, 53, 47, 0.06);
  backdrop-filter: blur(10px);
}

.intro-card h3,
.timeline-item h3,
.qr-card h3 {
  margin: 0 0 14px;
  font-size: 1.32rem;
}

.qualification-slider {
  display: grid;
  gap: 16px;
}

.slider-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.slider-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(21, 53, 47, 0.1);
  border-radius: 50%;
  background: rgba(255, 251, 246, 0.9);
  color: var(--accent-deep);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.slider-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(21, 53, 47, 0.08);
}

.qualification-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(280px, 38%);
  gap: 20px;
  overflow-x: auto;
  padding-bottom: 8px;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: rgba(21, 53, 47, 0.25) transparent;
}

.qualification-track::-webkit-scrollbar {
  height: 8px;
}

.qualification-track::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(21, 53, 47, 0.22);
}

.qualification-slide {
  scroll-snap-align: start;
  overflow: hidden;
  border-radius: 28px;
  background: rgba(255, 251, 246, 0.82);
  border: 1px solid rgba(21, 53, 47, 0.08);
  box-shadow: 0 18px 44px rgba(21, 53, 47, 0.06);
}

.qualification-image-button {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}

.qualification-slide img {
  width: 100%;
  height: 420px;
  object-fit: contain;
  object-position: center;
  background: linear-gradient(180deg, rgba(29, 122, 103, 0.06), rgba(216, 162, 94, 0.08));
}

.qualification-caption {
  padding: 20px 22px 22px;
}

.qualification-caption h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

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

.timeline-item {
  position: relative;
  padding-top: 78px;
}

.timeline-item span {
  position: absolute;
  top: 22px;
  left: 24px;
  color: rgba(15, 91, 76, 0.16);
  font-family: "Noto Serif SC", "Source Han Serif SC", "STSong", serif;
  font-size: 3rem;
  line-height: 1;
}

.qr-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.contact-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.contact-item {
  padding: 10px 4px;
  border-bottom: 1px solid var(--line);
}

.contact-item:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.contact-item h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.qr-card {
  text-align: center;
}

.qr-image-wrap {
  display: grid;
  place-items: center;
  min-height: 290px;
  margin-bottom: 18px;
  padding: 18px;
  border-radius: 26px;
  background:
    linear-gradient(180deg, rgba(29, 122, 103, 0.08), rgba(216, 162, 94, 0.08)),
    rgba(255, 255, 255, 0.82);
  border: 1px dashed rgba(21, 53, 47, 0.12);
}

.qr-image-wrap img {
  width: min(100%, 260px);
  height: auto;
}

.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
  padding: 28px 0 48px;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.image-lightbox[hidden] {
  display: none;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 20;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(11, 23, 20, 0.78);
  cursor: zoom-out;
}

.lightbox-dialog {
  position: relative;
  z-index: 1;
  place-items: center;
  width: min(92vw, 1100px);
  height: min(88vh, 900px);
  margin: min(6vh, 40px) auto;
  padding: 28px;
  border-radius: 28px;
  background: rgba(255, 252, 247, 0.96);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.28);
}

.lightbox-dialog img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 14px;
  right: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  background: rgba(21, 53, 47, 0.08);
  color: var(--ink);
  font-size: 1.8rem;
  line-height: 1;
  cursor: pointer;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .hero-grid,
  .intro-grid,
  .process-timeline,
  .qr-grid,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 18px;
  }

  .hero-copy {
    padding-top: 12px;
  }

  .section h2,
  .hero h1 {
    max-width: none;
  }

  .qualification-track {
    grid-auto-columns: minmax(260px, 78%);
  }

  .qualification-slide img {
    height: 360px;
  }
}

@media (max-width: 720px) {
  .hero,
  .section,
  .footer {
    width: min(100% - 20px, 1180px);
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
    border-radius: 28px;
  }

  .brand {
    align-items: flex-start;
  }

  .top-link {
    width: 100%;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .panel-card,
  .intro-card,
  .timeline-item,
  .qr-card,
  .contact-card,
  .qualification-slide {
    border-radius: 22px;
  }

  .slider-actions {
    display: none;
  }

  .qualification-track {
    grid-auto-columns: 88%;
  }

  .qualification-slide img {
    height: 300px;
  }

  .lightbox-dialog {
    width: min(94vw, 1100px);
    height: min(84vh, 900px);
    margin: 6vh auto;
    padding: 18px;
    border-radius: 22px;
  }

  .footer {
    padding-bottom: 32px;
  }
}