:root {
  --mint: #b4fde1;
  --sky: #add8e6;
  --ink: #172620;
  --ink-soft: #2b5744;
  --line: #172620;
  --r-lg: 28px;
  --r-md: 20px;
  --r-pill: 999px;
  --font-display: "Cormorant", "Songti SC", "Source Han Serif SC", "Noto Serif SC", Georgia, serif;
  --font-body: "Montserrat", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --pop: 5px 5px 0 rgba(23, 38, 32, 0.16), 12px 16px 30px rgba(23, 38, 32, 0.1);
  --pop-in: inset -3px -3px 9px rgba(23, 38, 32, 0.07), inset 3px 3px 10px rgba(255, 255, 255, 0.92);
  --ease: cubic-bezier(0.34, 1.3, 0.5, 1);
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

html.is-locked { overflow: hidden; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.78;
  color: var(--ink);
  overflow-x: hidden;
  background:
    radial-gradient(58% 38% at 6% 0%, #dcfff3 0%, rgba(220, 255, 243, 0) 62%),
    radial-gradient(52% 34% at 96% 10%, #ddf1ff 0%, rgba(221, 241, 255, 0) 66%),
    linear-gradient(180deg, #f2fdf8 0%, #eef9ff 52%, #f7fffb 100%);
  background-attachment: fixed;
}

img { max-width: 100%; height: auto; }

a { color: #0f5c40; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; }

.top {
  position: sticky;
  top: 0;
  z-index: 40;
  padding: 10px clamp(14px, 4vw, 34px) 12px;
  background: linear-gradient(180deg, #f4fffa 0%, #e8f8f1 100%);
  border-bottom: 4px solid var(--line);
  box-shadow: 0 8px 0 rgba(23, 38, 32, 0.08);
}

.brandline { display: flex; align-items: center; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  text-decoration: none;
  color: var(--ink);
}

.brand-mark {
  width: 26px;
  height: 26px;
  border: 3px solid var(--line);
  border-radius: 11px;
  background: linear-gradient(140deg, var(--mint), var(--sky));
  box-shadow: var(--pop-in), 2px 2px 0 rgba(23, 38, 32, 0.18);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.1;
}

.menuline {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 8px;
}

.burger,
.contact,
.close {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 9px 18px;
  border: 3px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, #ffffff, #e6fbf3);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 3px 3px 0 rgba(23, 38, 32, 0.16), var(--pop-in);
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.burger:hover,
.contact:hover,
.close:hover { transform: translate(-1px, -2px); }

.burger:active,
.contact:active,
.close:active {
  transform: translateY(2px);
  box-shadow: 1px 1px 0 rgba(23, 38, 32, 0.18), var(--pop-in);
}

.burger-bars {
  width: 20px;
  height: 14px;
  border-top: 3px solid var(--ink);
  border-bottom: 3px solid var(--ink);
  position: relative;
}

.burger-bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  border-top: 3px solid var(--ink);
  transform: translateY(-50%);
}

.menu {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  flex-direction: column;
  padding: 16px clamp(15px, 5vw, 44px) 34px;
  overflow-y: auto;
  visibility: hidden;
  transform: translateX(102%);
  transition: transform 0.36s var(--ease), visibility 0.36s linear;
  background:
    radial-gradient(110% 80% at 100% 0%, #d6f7ff 0%, rgba(214, 247, 255, 0) 60%),
    radial-gradient(90% 70% at 0% 100%, #d9fff0 0%, rgba(217, 255, 240, 0) 62%),
    linear-gradient(180deg, #f4fffb, #edfbff);
}

.menu.is-open { visibility: visible; transform: none; }

.menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 4px solid var(--line);
}

.menu-brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
}

.menu-nav ul {
  counter-reset: navstep;
  list-style: none;
  margin: clamp(14px, 3vh, 28px) 0 20px;
  padding: 0;
  display: grid;
  gap: 11px;
}

.menu-nav li { counter-increment: navstep; }

.menu-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  padding: 10px 18px;
  border: 3px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(150deg, #ffffff, #eafff6);
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 4px 4px 0 rgba(23, 38, 32, 0.14), var(--pop-in);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.menu-nav a::before {
  content: counter(navstep, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--ink-soft);
  padding: 1px 9px;
  border: 2px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--mint);
}

.menu-nav a:hover,
.menu-nav a:focus-visible {
  transform: translate(-3px, -3px);
  box-shadow: 7px 7px 0 rgba(23, 38, 32, 0.2), var(--pop-in);
}

.menu.is-open .menu-nav li {
  animation: rise 0.38s var(--ease) both;
}

.menu.is-open .menu-nav li:nth-child(2) { animation-delay: 0.04s; }
.menu.is-open .menu-nav li:nth-child(3) { animation-delay: 0.08s; }
.menu.is-open .menu-nav li:nth-child(4) { animation-delay: 0.12s; }
.menu.is-open .menu-nav li:nth-child(5) { animation-delay: 0.16s; }
.menu.is-open .menu-nav li:nth-child(6) { animation-delay: 0.2s; }
.menu.is-open .menu-nav li:nth-child(7) { animation-delay: 0.24s; }

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

.menu-contact {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 10px 26px;
  border: 3px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(150deg, var(--mint), var(--sky));
  font-weight: 700;
  text-decoration: none;
  color: var(--ink);
  box-shadow: 4px 4px 0 rgba(23, 38, 32, 0.16), var(--pop-in);
}

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 clamp(14px, 4vw, 34px) 62px;
}

article > section[id] { scroll-margin-top: 150px; }

article > section:not(.hero) {
  position: relative;
  overflow: hidden;
  margin: 0 0 26px;
  padding: clamp(18px, 3vw, 34px);
  border: 4px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(170deg, #ffffff 0%, #f6fffb 100%);
  box-shadow: var(--pop), var(--pop-in);
}

article > section:not(.hero)::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 8px;
  background: linear-gradient(90deg, var(--mint), var(--sky));
}

.hero {
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  min-height: 45vh;
  margin: 0 0 30px;
  padding: 38px 18px 52px;
  text-align: center;
  border: 4px solid var(--line);
  border-top: 0;
  border-radius: 0 0 48px 48px / 0 0 92px 92px;
  background: linear-gradient(152deg, var(--mint) 0%, var(--sky) 68%, #d9f0ff 100%);
  box-shadow: var(--pop-in), 0 12px 0 rgba(23, 38, 32, 0.12);
}

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

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero.has-media .hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(180, 253, 225, 0.78), rgba(173, 216, 230, 0.8));
}

.hero.has-media .hero-img { animation: drift 24s ease-in-out infinite alternate; }

@keyframes drift {
  from { transform: scale(1.04); }
  to { transform: scale(1.14) translate3d(-2%, -2%, 0); }
}

.hero-inner { position: relative; z-index: 1; max-width: 46rem; }

.badge {
  display: inline-block;
  margin: 0 0 16px;
  padding: 7px 20px;
  border: 3px solid var(--line);
  border-radius: var(--r-pill);
  background: linear-gradient(140deg, #ffffff, var(--mint));
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  box-shadow: 3px 3px 0 rgba(23, 38, 32, 0.18), var(--pop-in);
  animation: floaty 5s var(--ease) infinite;
}

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}

.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(1.85rem, 6vw, 3.15rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
  text-shadow: 2px 2px 0 rgba(255, 255, 255, 0.7);
}

.hero-desc {
  max-width: 44ch;
  margin: 0 auto;
  font-size: 1.03rem;
  line-height: 1.72;
  color: #123526;
}

article p { margin: 0 0 1em; }

article h2,
article h3 { margin: 0 0 0.55em; line-height: 1.26; }

article h2 {
  font-size: clamp(1.5rem, 3.6vw, 2.05rem);
  padding-bottom: 0.28em;
  border-bottom: 3px solid rgba(23, 38, 32, 0.16);
}

article h3 { font-size: clamp(1.24rem, 2.8vw, 1.5rem); }

article ul,
article ol { margin: 0 0 1.1em; padding-left: 1.35em; }

article li { margin: 0.35em 0; }

article li::marker { color: var(--ink-soft); }

article a {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

article img {
  border: 3px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: var(--pop);
}

article blockquote {
  margin: 1.2em 0;
  padding: 14px 20px;
  border: 3px solid var(--line);
  border-left-width: 10px;
  border-radius: var(--r-md);
  background: linear-gradient(150deg, #f2fffa, #e4f8ff);
  box-shadow: var(--pop-in);
}

article blockquote > :last-child { margin-bottom: 0; }

article table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.98rem;
  margin: 0 0 1.2em;
}

article th,
article td {
  border: 2px solid rgba(23, 38, 32, 0.28);
  padding: 8px 10px;
  text-align: left;
}

article th { background: #e8fff7; }

.foot {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 clamp(14px, 4vw, 34px) 52px;
  display: grid;
  gap: 18px;
}

.foot-cta {
  padding: 32px 22px 30px;
  text-align: center;
  border: 4px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, var(--mint), var(--sky));
  box-shadow: var(--pop), var(--pop-in);
}

.eyebrow {
  display: block;
  margin-bottom: 6px;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--ink-soft);
}

.foot-cta h2 {
  margin: 0 0 18px;
  font-size: clamp(1.5rem, 4vw, 2rem);
  line-height: 1.25;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 11px 34px;
  border: 3px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, #ffffff, #f0fffa);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  box-shadow: 4px 4px 0 rgba(23, 38, 32, 0.2), var(--pop-in);
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.cta-btn:hover { transform: translate(-2px, -3px); }

.cta-btn:active {
  transform: translateY(2px);
  box-shadow: 1px 1px 0 rgba(23, 38, 32, 0.2), var(--pop-in);
}

.foot-legal {
  text-align: center;
  padding-top: 4px;
  font-size: 0.94rem;
  color: var(--ink-soft);
}

.foot-legal p { margin: 0; }

a:focus-visible,
button:focus-visible {
  outline: 3px solid #0f5c40;
  outline-offset: 3px;
}

@media (max-width: 720px) {
  body { font-size: 1rem; line-height: 1.72; }

  .brand-name { font-size: 1.45rem; }

  .hero {
    min-height: 45vh;
    padding: 30px 16px 44px;
    border-radius: 0 0 34px 34px / 0 0 62px 62px;
    margin-bottom: 24px;
  }

  .hero h1 { font-size: clamp(1.7rem, 8.4vw, 2.3rem); }

  .hero-desc { font-size: 1rem; }

  main { padding-bottom: 48px; }

  article > section[id] { scroll-margin-top: 168px; }

  article > section:not(.hero) { padding: 18px 15px 24px; margin-bottom: 20px; }

  .menu-nav a { font-size: 1rem; padding: 9px 14px; }

  .foot-cta { padding: 26px 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
  }
}

button[aria-expanded]{min-width:44px;min-height:44px}