:root {
  color-scheme: light;
  --canvas: #eef3ed;
  --surface: #fbfdf8;
  --surface-raised: #ffffff;
  --ink: #17201b;
  --muted: #627268;
  --line: #b8c8bb;
  --line-strong: #82978a;
  --accent: #19734a;
  --accent-strong: #0f5335;
  --accent-soft: #dceee1;
  --warm: #d8663d;
  --shadow: #17241d;
  --waline-font-size: 1rem;
  --waline-white: #ffffff;
  --waline-light-grey: #718076;
  --waline-dark-grey: #4e5f53;
  --waline-theme-color: var(--accent);
  --waline-active-color: var(--accent-strong);
  --waline-color: var(--ink);
  --waline-bg-color: var(--surface-raised);
  --waline-bg-color-light: var(--surface);
  --waline-bg-color-hover: var(--accent-soft);
  --waline-border-color: var(--line);
  --waline-disable-bg-color: var(--surface);
  --waline-disable-color: var(--muted);
  --waline-warning-color: #a45624;
  --waline-warning-bg-color: #fff2de;
  --waline-bq-color: var(--accent-soft);
  --waline-badge-color: var(--accent);
  --waline-info-bg-color: var(--surface);
  --waline-info-color: var(--muted);
  --waline-border: 2px solid var(--line);
  --waline-avatar-radius: 0;
  --waline-box-shadow: 4px 4px 0 var(--line);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --canvas: #101612;
    --surface: #172019;
    --surface-raised: #1e2b22;
    --ink: #edf7ee;
    --muted: #9bad9f;
    --line: #3d5645;
    --line-strong: #6c8972;
    --accent: #6ee7a2;
    --accent-strong: #98ffc0;
    --accent-soft: #1b3a2a;
    --warm: #ffb46c;
    --shadow: #090e0b;
    --waline-light-grey: #91a697;
    --waline-dark-grey: #c1d0c4;
    --waline-warning-color: #ffbd75;
    --waline-warning-bg-color: #3c2918;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  line-height: 1.6;
}

::selection {
  background: var(--accent);
  color: var(--surface-raised);
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--warm);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  padding: 8px 12px;
  transform: translateY(-160%);
  border: 2px solid var(--ink);
  background: var(--surface-raised);
  color: var(--ink);
  font-size: 0.875rem;
}

.skip-link:focus {
  transform: translateY(0);
}

.page-shell {
  width: min(100% - 40px, 1160px);
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  border-bottom: 2px solid var(--line);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 1.125rem;
  font-weight: 800;
}

.wordmark-mark {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 2px solid var(--ink);
  background: var(--accent);
  color: var(--surface-raised);
  font-size: 0.75rem;
  line-height: 1;
  box-shadow: 3px 3px 0 var(--shadow);
}

.header-rail {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.6875rem;
  font-weight: 700;
}

.rail-dot {
  width: 8px;
  height: 8px;
  background: var(--warm);
  box-shadow: 3px 3px 0 var(--line);
}

.hero {
  padding: 78px 0 74px;
  border-bottom: 2px solid var(--line);
}

.hero-overline,
.section-index,
.hero-kicker,
.avatar-index {
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-weight: 700;
}

.hero-overline {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 30px;
  color: var(--accent);
  font-size: 0.75rem;
}

.overline-rule {
  width: 54px;
  height: 3px;
  background: var(--accent);
}

.hero-layout {
  display: grid;
  grid-template-columns: 176px minmax(0, 1fr) auto;
  gap: 38px;
  align-items: center;
}

.avatar-frame {
  position: relative;
  width: 176px;
  aspect-ratio: 1;
  border: 3px solid var(--ink);
  background: var(--accent-soft);
  box-shadow: 8px 8px 0 var(--shadow);
}

.profile-avatar,
.avatar-fallback {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-fallback {
  display: none;
  place-items: center;
  background: var(--accent);
  color: var(--surface-raised);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 2.75rem;
  font-weight: 800;
}

.avatar-frame[data-fallback="true"] .profile-avatar {
  display: none;
}

.avatar-frame[data-fallback="true"] .avatar-fallback {
  display: grid;
}

.avatar-index {
  position: absolute;
  right: -3px;
  bottom: -3px;
  padding: 4px 7px;
  border: 2px solid var(--ink);
  background: var(--warm);
  color: var(--surface-raised);
  font-size: 0.6875rem;
}

.hero-kicker {
  margin: 0 0 12px;
  color: var(--warm);
  font-size: 0.75rem;
}

.hero-copy h1 {
  max-width: 720px;
  margin: 0;
  font-size: 3.75rem;
  font-weight: 800;
  line-height: 1.12;
}

.hero-copy h1 span {
  color: var(--accent);
}

.hero-description {
  max-width: 580px;
  margin: 20px 0 26px;
  color: var(--muted);
  font-size: 1.125rem;
}

.jump-link,
.section-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-strong);
  font-size: 0.875rem;
  font-weight: 800;
}

.jump-link {
  padding-bottom: 4px;
  border-bottom: 2px solid var(--accent);
}

.jump-link svg,
.section-action svg {
  width: 16px;
  height: 16px;
}

.content-section {
  padding: 62px 0;
  border-bottom: 2px solid var(--line);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.section-index {
  margin: 0 0 8px;
  color: var(--warm);
  font-size: 0.75rem;
}

.section-heading h2 {
  margin: 0;
  font-size: 2rem;
  line-height: 1.2;
}

.section-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.875rem;
}

.link-grid {
  display: grid;
  gap: 18px;
}

.contact-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.link-tile {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 20px;
  gap: 14px;
  align-items: center;
  min-height: 116px;
  padding: 16px;
  border: 2px solid var(--line-strong);
  background: var(--surface-raised);
  box-shadow: 5px 5px 0 var(--line);
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease;
}

.link-tile:hover {
  border-color: var(--accent);
  box-shadow: 2px 2px 0 var(--accent);
  transform: translate(3px, 3px);
}

.tile-icon {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 2px solid var(--line-strong);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.service-icon {
  background: var(--warm);
  color: var(--surface-raised);
}

.tile-icon svg {
  width: 21px;
  height: 21px;
  stroke-width: 2;
}

.tile-content {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 3px;
}

.tile-label {
  color: var(--ink);
  font-size: 1rem;
  font-weight: 800;
}

.tile-value {
  overflow-wrap: anywhere;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.6875rem;
}

.tile-arrow {
  width: 18px;
  height: 18px;
  color: var(--accent);
}

.waline-section {
  padding-bottom: 74px;
}

.waline-surface {
  min-height: 420px;
  padding: 18px;
  border: 2px solid var(--line-strong);
  background: var(--surface);
  box-shadow: 6px 6px 0 var(--line);
}

#waline {
  max-width: 100%;
  color: var(--ink);
  font-family: inherit;
}

#waline .wl-panel {
  margin: 0;
  border-radius: 0;
  box-shadow: none;
}

#waline .wl-header {
  border-radius: 0;
}

#waline .wl-btn,
#waline .wl-editor,
#waline .wl-input {
  border-radius: 0;
}

#waline .wl-btn.primary {
  color: var(--surface-raised);
}

#waline .wl-editor:focus,
#waline .wl-input:focus {
  background: var(--accent-soft);
}

.waline-fallback,
.waline-surface noscript {
  margin: 0;
  padding: 20px;
  border: 2px dashed var(--line);
  color: var(--muted);
  font-size: 0.875rem;
  text-align: center;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0 36px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.6875rem;
}

@media (max-width: 980px) {
  .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

}

@media (max-width: 680px) {
  .page-shell {
    width: min(100% - 28px, 1160px);
  }

  .site-header {
    min-height: 66px;
  }

  .header-rail {
    font-size: 0.5625rem;
  }

  .hero {
    padding: 52px 0 58px;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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

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

  .content-section {
    padding: 48px 0;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .section-heading h2 {
    font-size: 1.75rem;
  }

  .service-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .waline-surface {
    padding: 10px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}

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

  .link-tile {
    transition: none;
  }
}