:root {
  --kiwi-stone: #6B6B6B;
  --kiwi-deep: #4A6B4A;
  --kiwi-moss: #6B8B6B;
  --kiwi-clay: #D27D5D;
  --kiwi-cream: #F5F0E6;
  --kiwi-stone-light: #D6D6D6;
  --kiwi-ink: #2E2E2E;
  --kiwi-sun: #F5C542;
  --kiwi-greene: #8BC34A;
  --kiwi-flesh: #EAF3E0;
  --font-sans: "MiSans", "HarmonyOS Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-serif: Georgia, "Times New Roman", "Songti SC", "STSong", "Noto Serif SC", serif;
  --font-mono: "SF Mono", "Cascadia Mono", "JetBrains Mono", Consolas, "Courier New", monospace;
  --shadow-float: 0 18px 44px rgba(46, 74, 46, 0.22);
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--kiwi-cream);
  background-image: radial-gradient(circle, rgba(74, 107, 74, 0.085) 1px, transparent 1px);
  background-size: 26px 26px;
  color: var(--kiwi-ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

body,
h1,
h2,
h3,
h4,
p,
ul,
ol,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-sans);
  line-height: 1.25;
}

h1 {
  font-size: clamp(2.1rem, 5.6vw, 4.25rem);
  font-weight: 900;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.45rem, 2.6vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

p {
  line-height: 1.8;
}

main {
  display: block;
}

a {
  color: inherit;
  text-decoration-thickness: 2px;
  text-underline-offset: 2px;
}

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--kiwi-sun);
  outline-offset: 3px;
  border-radius: 8px;
}

::selection {
  background: var(--kiwi-sun);
  color: var(--kiwi-ink);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.kiwi-shell {
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: clamp(14px, 2.4vw, 28px) clamp(12px, 3vw, 40px) 0;
}

@media (min-width: 768px) {
  .kiwi-shell {
    padding-left: 138px;
  }
}

@media (min-width: 1024px) {
  .kiwi-shell {
    padding-left: 176px;
    padding-right: clamp(20px, 3vw, 48px);
  }
}

.site-header {
  position: relative;
  z-index: 100;
}

.scroll-progress {
  position: fixed;
  left: 0;
  top: 0;
  width: 0;
  height: 4px;
  border-radius: 0 4px 4px 0;
  background: linear-gradient(90deg, var(--kiwi-sun), var(--kiwi-greene));
  box-shadow: 0 0 12px rgba(139, 195, 74, 0.35);
  z-index: 240;
  pointer-events: none;
}

.skip-link {
  position: fixed;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--kiwi-sun);
  color: var(--kiwi-ink);
  font-weight: 700;
  font-size: 14px;
  padding: 12px 24px;
  border-radius: 0 0 16px 16px;
  text-decoration: none;
  box-shadow: 0 10px 22px rgba(46, 46, 46, 0.22);
  transition: top 0.22s ease;
  z-index: 300;
}

.skip-link:focus-visible {
  top: 0;
}

.kiwi-mark {
  display: block;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, var(--kiwi-sun) 0 14%, var(--kiwi-flesh) 18% 38%, var(--kiwi-greene) 42% 70%, var(--kiwi-moss) 76% 100%);
  position: relative;
  box-shadow: inset 0 2px 6px rgba(255, 255, 255, 0.35), 0 4px 10px rgba(46, 86, 46, 0.25);
  flex: 0 0 auto;
}

.kiwi-mark::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background-image:
    radial-gradient(circle at 21% 22%, rgba(46, 46, 46, 0.9) 0 2px, transparent 2.5px),
    radial-gradient(circle at 74% 25%, rgba(46, 46, 46, 0.9) 0 2px, transparent 2.5px),
    radial-gradient(circle at 80% 60%, rgba(46, 46, 46, 0.9) 0 2px, transparent 2.5px),
    radial-gradient(circle at 57% 82%, rgba(46, 46, 46, 0.9) 0 2px, transparent 2.5px),
    radial-gradient(circle at 27% 77%, rgba(46, 46, 46, 0.9) 0 2px, transparent 2.5px),
    radial-gradient(circle at 18% 48%, rgba(46, 46, 46, 0.9) 0 2px, transparent 2.5px),
    radial-gradient(circle at 39% 37%, rgba(46, 46, 46, 0.85) 0 1.6px, transparent 2px),
    radial-gradient(circle at 53% 56%, rgba(46, 46, 46, 0.85) 0 1.6px, transparent 2px);
}

.kiwi-mark--mini {
  width: 28px;
  height: 28px;
}

.kiwi-mark--small {
  width: 36px;
  height: 36px;
}

.kiwi-mark--large {
  width: 108px;
  height: 108px;
}

.site-nav {
  position: fixed;
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  width: 108px;
  max-height: calc(100vh - 24px);
  overflow-y: auto;
  padding: 28px 10px 18px;
  border-radius: 56px;
  background: linear-gradient(180deg, var(--kiwi-deep) 0%, #3C5A40 55%, #335038 100%);
  box-shadow: var(--shadow-float);
  color: var(--kiwi-cream);
  z-index: 120;
}

.site-nav__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 0 0 16px;
  margin-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  text-decoration: none;
  color: var(--kiwi-cream);
}

.site-nav__brand-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.site-nav__name {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.22em;
  line-height: 1.2;
  color: var(--kiwi-cream);
}

.site-nav__sub {
  font-size: 9px;
  letter-spacing: 0.18em;
  line-height: 1.2;
  text-transform: uppercase;
  opacity: 0.7;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  padding-top: 8px;
  margin-top: 2px;
  font-family: var(--font-mono);
}

.site-nav__menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.site-nav__menu li {
  margin: 0;
  padding: 0;
}

.site-nav__menu a {
  display: block;
  text-align: center;
  padding: 10px 6px;
  border-radius: 999px;
  color: rgba(245, 240, 230, 0.86);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.3;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.site-nav__menu a:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.site-nav__menu a[aria-current="page"] {
  background: var(--kiwi-greene);
  color: var(--kiwi-ink);
  box-shadow: 0 4px 12px rgba(46, 46, 46, 0.18);
}

.site-nav__toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 0;
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  padding: 0;
}

.menu-line {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--kiwi-cream);
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease;
}

.site-footer {
  position: relative;
  margin-top: clamp(48px, 7vw, 96px);
  margin-bottom: clamp(12px, 2vw, 24px);
  padding: clamp(28px, 4vw, 52px) clamp(20px, 4vw, 60px) 24px;
  border-radius: 36px 36px 0 0;
  background: linear-gradient(135deg, var(--kiwi-deep) 0%, #3D5C3D 46%, #2C5238 100%);
  color: rgba(245, 240, 230, 0.9);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  right: -80px;
  top: -140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 197, 66, 0.14) 0 12%, rgba(139, 195, 74, 0.16) 16% 36%, transparent 40%);
  pointer-events: none;
}

.site-footer::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.site-footer__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr;
  gap: clamp(24px, 4vw, 52px);
}

.site-footer__col--brand {
  min-width: 0;
}

.site-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #fff;
}

.site-footer__brand-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.site-footer__name {
  font-size: 20px;
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
  transition: color 0.2s ease;
}

.site-footer__brand:hover .site-footer__name {
  color: var(--kiwi-greene);
}

.site-footer__sub {
  font-size: 12px;
  letter-spacing: 0.1em;
  opacity: 0.72;
}

.site-footer__statement {
  margin-top: 18px;
  max-width: 42em;
  font-size: 14px;
  line-height: 1.85;
  opacity: 0.82;
}

.site-footer__heading {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 700;
  color: var(--kiwi-greene);
  margin: 0 0 16px;
  padding-left: 12px;
  border-left: 3px solid var(--kiwi-sun);
  line-height: 1.4;
}

.site-footer__linklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.site-footer__linklist a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 4px 0;
  color: rgba(245, 240, 230, 0.85);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
}

.site-footer__linklist a::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--kiwi-greene);
  flex: 0 0 auto;
}

.site-footer__linklist a:hover {
  color: #fff;
  transform: translateX(2px);
}

.site-footer__mail,
.site-footer__tel {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: rgba(245, 240, 230, 0.92);
}
.site-footer__mail { margin-top: 0; }

.site-footer__address {
  font-style: normal;
  font-size: 13px;
  color: rgba(245, 240, 230, 0.65);
  margin-top: 10px;
}

.site-footer__note {
  font-size: 12px;
  opacity: 0.55;
  margin-top: 8px;
}

.site-footer__meta {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 20px;
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 18px;
  border-top: 1px solid rgba(245, 240, 230, 0.16);
  font-size: 13px;
  color: rgba(245, 240, 230, 0.62);
}

.site-footer__meta p {
  margin: 0;
}

@media (max-width: 1023px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
  .site-footer__col--brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 767px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
  }
  .site-footer__col--brand {
    grid-column: auto;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 2px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.25;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.btn--primary {
  background: var(--kiwi-greene);
  color: var(--kiwi-ink);
}

.btn--primary:hover {
  background: #9BD256;
  box-shadow: 0 10px 22px rgba(139, 195, 74, 0.34);
}

.btn--dark {
  background: var(--kiwi-deep);
  color: var(--kiwi-cream);
}

.btn--dark:hover {
  background: #557C57;
  box-shadow: 0 10px 22px rgba(74, 107, 74, 0.34);
}

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

.btn--clay:hover {
  background: #C86A4C;
  box-shadow: 0 10px 22px rgba(210, 125, 93, 0.34);
}

.btn--ghost {
  background: transparent;
  border-color: var(--kiwi-stone-light);
  color: var(--kiwi-deep);
}

.btn--ghost:hover {
  border-color: var(--kiwi-deep);
  background: rgba(74, 107, 74, 0.06);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  background: var(--kiwi-stone-light);
  color: var(--kiwi-stone);
}

.tag--green {
  background: rgba(139, 195, 74, 0.22);
  color: #3A5A3A;
}

.tag--yellow {
  background: var(--kiwi-sun);
  color: var(--kiwi-ink);
}

.tag--clay {
  background: var(--kiwi-clay);
  color: #fff;
}

.tag--ghost {
  background: transparent;
  border: 1px solid var(--kiwi-stone-light);
  color: var(--kiwi-deep);
}

.cut-panel {
  background: #FCF9F2;
  border: 1px solid var(--kiwi-stone-light);
  border-radius: 4px 28px 8px 28px;
  padding: 26px;
  box-shadow: 0 6px 16px rgba(46, 46, 46, 0.04);
}

.file-folder {
  margin: 28px 0;
}

.file-folder__tab {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: 100%;
  background: var(--kiwi-moss);
  color: var(--kiwi-cream);
  border-radius: 14px 14px 0 0;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.3;
}

.file-folder__tab::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--kiwi-sun);
  flex: 0 0 auto;
}

.file-folder__body {
  background: rgba(252, 249, 242, 0.92);
  border-right: 1px solid #E5DFD1;
  border-bottom: 1px solid #E5DFD1;
  border-left: 1px solid #E5DFD1;
  border-radius: 0 18px 10px 10px;
  padding: 24px;
}

.doc-card {
  background: #FCF9F2;
  border-radius: 16px 16px 16px 8px;
  border-bottom: 3px solid var(--kiwi-moss);
  padding: 22px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.doc-card:hover {
  transform: translateY(-3px);
  border-bottom-color: var(--kiwi-greene);
  box-shadow: 0 12px 28px rgba(46, 46, 46, 0.08);
}

.doc-card__title {
  font-size: 17px;
  font-weight: 800;
  margin: 14px 0 8px;
}

.doc-card__desc {
  font-size: 14px;
  color: var(--kiwi-stone);
  line-height: 1.7;
  margin: 0;
}

.section-head {
  margin-bottom: 28px;
}

.section-head__eyebrow {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--kiwi-deep);
  border-left: 3px solid var(--kiwi-greene);
  padding-left: 10px;
  margin-bottom: 8px;
}

.section-head__title {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 900;
  color: var(--kiwi-ink);
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.section-head__desc {
  color: var(--kiwi-stone);
  max-width: 48em;
  margin-top: 10px;
}

.breadcrumb {
  padding: 6px 0;
  margin-bottom: 18px;
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
}

.breadcrumb__list a {
  color: var(--kiwi-stone);
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumb__list a:hover {
  color: var(--kiwi-deep);
}

.breadcrumb__sep {
  color: var(--kiwi-stone-light);
}

.prose {
  max-width: 68ch;
  color: var(--kiwi-ink);
  font-size: 16px;
}

.prose > * + * {
  margin-top: 0.9em;
}

.prose h2 {
  margin-top: 1.8em;
}

.prose h3 {
  margin-top: 1.4em;
}

.prose ul,
.prose ol {
  padding-left: 1.4em;
}

.prose a {
  color: var(--kiwi-deep);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 2px;
  transition: color 0.2s ease;
}

.prose a:hover {
  color: var(--kiwi-greene);
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: rgba(107, 107, 107, 0.14);
  padding: 0.2em 0.45em;
  border-radius: 6px;
}

.grid {
  display: grid;
  gap: 22px;
}

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

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

.img-frame {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background:
    radial-gradient(circle at 72% 24%, rgba(139, 195, 74, 0.5) 0 10%, transparent 10.5%),
    radial-gradient(circle at 24% 70%, rgba(139, 195, 74, 0.45) 0 8%, transparent 8.5%),
    linear-gradient(135deg, var(--kiwi-moss) 0%, var(--kiwi-deep) 100%);
}

.img-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-frame--empty::before {
  content: "奇异果切面图";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: rgba(245, 240, 230, 0.8);
  font-size: 13px;
  letter-spacing: 0.1em;
}

@media (max-width: 900px) {
  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 767px) {
  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 768px) and (max-height: 760px) {
  .site-nav {
    top: 12px;
    transform: none;
  }
  .site-nav__menu a {
    padding: 8px 6px;
  }
}

@media (max-width: 767px) {
  .site-nav {
    position: sticky;
    top: 10px;
    left: auto;
    right: auto;
    transform: none;
    width: auto;
    max-height: none;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    margin: 6px 8px 0;
    padding: 8px 10px;
    border-radius: 999px;
    background: rgba(46, 74, 46, 0.96);
    transition: border-radius 0.25s ease;
  }

  .site-nav[data-open] {
    border-radius: 26px;
  }

  .site-nav__brand {
    flex-direction: row;
    align-items: center;
    gap: 10px;
    padding: 0;
    margin: 0;
    border-bottom: 0;
  }

  .site-nav__brand-text {
    flex-direction: row;
    align-items: baseline;
    gap: 6px;
  }

  .site-nav__name {
    writing-mode: horizontal-tb;
    font-size: 15px;
    letter-spacing: 0.02em;
  }

  .site-nav__sub {
    display: none;
  }

  .site-nav__toggle {
    display: inline-flex;
  }

  .site-nav__menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px;
    background: rgba(46, 74, 46, 0.98);
    border-radius: 22px;
    box-shadow: 0 20px 40px rgba(46, 74, 46, 0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  }

  .site-nav[data-open] .site-nav__menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-nav__menu a {
    text-align: left;
    font-size: 14px;
    padding: 12px 16px;
  }

  .site-nav[data-open] .site-nav__toggle .menu-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .site-nav[data-open] .site-nav__toggle .menu-line:nth-child(2) {
    opacity: 0;
  }

  .site-nav[data-open] .site-nav__toggle .menu-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

@media (min-width: 768px) {
  .site-nav__toggle {
    display: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .scroll-progress {
    display: none;
  }
}