:root {
  --bg: #0d0c12;
  --bg-elevated: #15131b;
  --bg-soft: #1c1822;
  --ink: #f4f0f5;
  --ink-soft: #aaa2b0;
  --border: rgba(244, 240, 245, 0.1);
  --border-strong: rgba(216, 180, 232, 0.32);
  --accent: #d8b4e8;
  --accent-strong: #b884cf;
  --accent-2: #8ac9ad;
  --coral: #f28778;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
  --font-serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --font-mono: "JetBrains Mono", "Consolas", monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

:root[data-theme="light"] {
  --bg: #f7f4f8;
  --bg-elevated: #ffffff;
  --bg-soft: #f0e9f3;
  --ink: #211b26;
  --ink-soft: #6e6674;
  --border: rgba(55, 38, 67, 0.12);
  --border-strong: rgba(117, 66, 147, 0.3);
  --accent: #754293;
  --accent-strong: #573069;
  --accent-2: #2f8663;
  --coral: #d96d61;
  --shadow: 0 24px 60px rgba(55, 38, 67, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 10% 7%, rgba(216, 180, 232, 0.1), transparent 30rem),
    radial-gradient(circle at 92% 20%, rgba(138, 201, 173, 0.08), transparent 28rem),
    var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.35s ease, color 0.35s ease;
}

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

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 1rem;
  left: 1rem;
  padding: 0.65rem 1rem;
  border-radius: 10px;
  background: var(--bg-elevated);
  color: var(--ink);
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform 0.2s ease;
}

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

#bg {
  position: fixed;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.56;
}

.wrap {
  position: relative;
  z-index: 1;
  width: min(1040px, calc(100% - 3rem));
  margin: 0 auto;
  padding: 7rem 0 3.5rem;
}

.controls {
  position: fixed;
  z-index: 10;
  top: 1.25rem;
  right: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

#theme-toggle,
#lang-toggle,
#site-like {
  display: flex;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elevated) 82%, transparent);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
  color: var(--ink);
  cursor: pointer;
  backdrop-filter: blur(16px);
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.35s ease;
}

#theme-toggle:hover,
#lang-toggle:hover,
#site-like:hover:not(:disabled) {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

#theme-toggle {
  width: 42px;
  border-radius: 50%;
  font-size: 1rem;
}

.icon-light {
  display: none;
}

:root[data-theme="light"] .icon-dark {
  display: none;
}

:root[data-theme="light"] .icon-light {
  display: inline;
}

#lang-toggle {
  gap: 0.25rem;
  padding: 0 0.85rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.02em;
}

#site-like {
  gap: 0.42rem;
  min-width: 68px;
  padding: 0 0.78rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

#site-like svg {
  fill: transparent;
  stroke: currentColor;
  stroke-linejoin: round;
  stroke-width: 1.6;
  transition: fill 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

#site-like:hover:not(:disabled) svg {
  color: var(--coral);
  transform: rotate(-8deg) scale(1.08);
}

#site-like.is-liked {
  border-color: color-mix(in srgb, var(--coral) 42%, transparent);
  color: var(--coral);
  cursor: default;
}

#site-like.is-liked svg {
  fill: currentColor;
}

#site-like.is-pending svg {
  animation: like-pulse 0.8s ease infinite alternate;
}

#lang-toggle .lang-zh,
#lang-toggle .lang-en {
  opacity: 0.4;
  transition: color 0.2s ease, opacity 0.2s ease;
}

#lang-toggle .lang-sep {
  opacity: 0.25;
}

:root:not([data-lang="en"]) #lang-toggle .lang-zh,
:root[data-lang="en"] #lang-toggle .lang-en {
  color: var(--accent);
  opacity: 1;
}

.hero {
  position: relative;
  margin-bottom: 6.5rem;
  text-align: center;
  animation: enter 0.7s ease both;
}

.hero::before {
  position: absolute;
  z-index: -1;
  top: -4rem;
  left: 50%;
  width: min(42rem, 90vw);
  height: 22rem;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(216, 180, 232, 0.1), transparent 68%);
  content: "";
  filter: blur(10px);
  transform: translateX(-50%);
}

.avatar-wrap {
  position: relative;
  width: 92px;
  height: 92px;
  margin: 0 auto 1.7rem;
}

.avatar-wrap::before {
  position: absolute;
  inset: -7px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  content: "";
  opacity: 0.75;
}

.avatar {
  display: block;
  width: 100%;
  height: 100%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 42%, color-mix(in srgb, var(--accent) 15%, transparent), transparent 62%),
    var(--bg-elevated);
  box-shadow: 0 18px 44px rgba(117, 66, 147, 0.28);
  object-fit: contain;
}

.eyebrow {
  margin: 0 0 0.6rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.69rem;
  font-weight: 500;
  letter-spacing: 0.13em;
}

.hero h1 {
  margin: 0 0 0.2rem;
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 7vw, 4.35rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.title {
  margin: 0 0 1.25rem;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.title .dot {
  margin: 0 0.35em;
  color: var(--accent);
}

.tagline {
  max-width: 32em;
  margin: 0 auto 1.9rem;
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: clamp(1.08rem, 2vw, 1.32rem);
  line-height: 1.9;
}

.badges,
.links,
.tags,
.project-actions {
  display: flex;
  flex-wrap: wrap;
}

.badges {
  justify-content: center;
  gap: 0.48rem;
  margin-bottom: 1.8rem;
}

.badge,
.tag {
  border: 1px solid var(--border);
  color: var(--ink-soft);
  font-family: var(--font-mono);
}

.badge {
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg-elevated) 58%, transparent);
  font-size: 0.68rem;
  letter-spacing: 0.025em;
}

.links {
  justify-content: center;
  gap: 0.65rem;
}

.contact-link {
  display: flex;
  width: fit-content;
  min-height: 50px;
  align-items: center;
  gap: 0.7rem;
  margin: 0 auto 1.15rem;
  padding: 0.55rem 0.75rem 0.55rem 0.62rem;
  border: 1px solid color-mix(in srgb, var(--accent) 48%, transparent);
  border-radius: 14px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 18%, var(--bg-elevated)), color-mix(in srgb, var(--coral) 10%, var(--bg-elevated)));
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.2);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.contact-link:hover {
  border-color: var(--accent);
  box-shadow: 0 18px 46px color-mix(in srgb, var(--accent) 16%, transparent);
  transform: translateY(-2px);
}

.contact-label {
  padding: 0.25rem 0.55rem;
  border-radius: 8px;
  background: var(--accent);
  color: #2d2032;
  font-size: 0.72rem;
  font-weight: 700;
}

.contact-email {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.01em;
}

.contact-link svg {
  color: var(--accent);
}

.links a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 0.52rem;
  padding: 0.55rem 1.05rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg-elevated) 82%, transparent);
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.12);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-decoration: none;
  backdrop-filter: blur(14px);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.links a:hover {
  border-color: var(--border-strong);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.18);
  transform: translateY(-2px);
}

.links .link-primary {
  border-color: rgba(216, 180, 232, 0.3);
  background: linear-gradient(135deg, rgba(216, 180, 232, 0.16), rgba(242, 135, 120, 0.09));
}

.links img {
  border-radius: 6px;
}

.block {
  margin-bottom: 5rem;
  scroll-margin-top: 3rem;
}

.block h2 {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin: 0 0 1.5rem;
  font-family: var(--font-serif);
  font-size: 1.48rem;
  font-weight: 600;
}

.num {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.73rem;
  letter-spacing: 0.08em;
}

.block > p {
  max-width: 870px;
}

.block p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1rem;
}

.block p .mono {
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.focus-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.focus-list li {
  position: relative;
  padding: 1.15rem 1.2rem 1.15rem 2.7rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--bg-elevated) 70%, transparent);
  color: var(--ink-soft);
}

.focus-list li::before {
  position: absolute;
  top: 1.65rem;
  left: 1.25rem;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent-2) 13%, transparent);
  content: "";
}

.focus-list li:last-child::before {
  background: var(--accent);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 13%, transparent);
}

.focus-list strong {
  color: var(--ink);
  font-weight: 600;
}

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

.project-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 1.65rem;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: color-mix(in srgb, var(--bg-elevated) 92%, transparent);
  box-shadow: var(--shadow);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.project-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
}

.project-featured {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: minmax(0, 0.95fr) minmax(380px, 1.05fr);
  gap: 2.2rem;
  padding: 2rem;
  background:
    radial-gradient(circle at 92% 12%, rgba(216, 180, 232, 0.13), transparent 19rem),
    radial-gradient(circle at 4% 110%, rgba(138, 201, 173, 0.09), transparent 22rem),
    var(--bg-elevated);
}

.project-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
}

.project-heading {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}

.project-logo {
  border-radius: 16px;
  box-shadow: 0 12px 28px rgba(117, 66, 147, 0.26);
}

.project-status {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.34rem 0.62rem;
  border: 1px solid color-mix(in srgb, var(--accent-2) 35%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent-2) 10%, transparent);
  color: var(--accent-2);
  font-family: var(--font-mono);
  font-size: 0.66rem;
}

.project-status i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent-2) 13%, transparent);
}

.project-index {
  margin-bottom: 1.35rem;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
}

.project-card h3 {
  margin: 0 0 0.1rem;
  font-family: var(--font-serif);
  font-size: 1.22rem;
}

.project-tool-heading {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 1rem;
}

.project-tool-icon {
  flex: 0 0 56px;
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(79, 70, 229, 0.2);
}

.project-tool-copy {
  min-width: 0;
}

.project-featured h3 {
  font-family: var(--font-sans);
  font-size: 1.42rem;
  letter-spacing: -0.02em;
}

.project-en {
  margin: 0 0 0.95rem;
  color: var(--accent) !important;
  font-family: var(--font-mono);
  font-size: 0.7rem !important;
  letter-spacing: 0.035em;
}

.project-tool-copy .project-en {
  margin: 0;
}

.project-heading .project-en {
  margin: 0;
}

.project-card > p:not(.project-en),
.project-copy > p {
  margin: 0 0 1.1rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.tags {
  gap: 0.42rem;
}

.tag {
  padding: 0.25rem 0.55rem;
  border-radius: 7px;
  background: color-mix(in srgb, var(--bg-soft) 58%, transparent);
  font-size: 0.68rem;
}

.project-actions {
  align-items: center;
  gap: 1rem;
  margin-top: 1.15rem;
}

.project-link {
  display: inline-block;
  align-self: flex-start;
  margin-top: auto;
  padding-top: 1.15rem;
  color: var(--accent-2);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  text-decoration: none;
  text-underline-offset: 4px;
}

.project-actions .project-link {
  margin: 0;
  padding: 0;
}

.project-link:hover {
  text-decoration: underline;
}

.project-link-primary {
  padding: 0.6rem 0.9rem !important;
  border-radius: 10px;
  background: var(--accent);
  color: #2d2032;
  font-weight: 500;
  text-decoration: none !important;
  transition: background 0.2s ease, transform 0.2s ease;
}

.project-link-primary:hover {
  background: color-mix(in srgb, var(--accent) 88%, white);
  transform: translateY(-1px);
}

.doquence-preview {
  align-self: center;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  border-radius: 18px;
  background: #fbf9fc;
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.22);
  color: #211b26;
  transform: rotate(0.7deg);
  transition: transform 0.3s ease;
}

.project-featured:hover .doquence-preview {
  transform: rotate(0deg) translateY(-2px);
}

.preview-bar {
  display: flex;
  height: 36px;
  align-items: center;
  gap: 5px;
  padding: 0 12px;
  border-bottom: 1px solid #e6dfea;
  background: #ffffff;
}

.preview-bar > span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #dacfdc;
}

.preview-bar > span:first-child {
  background: #e9a29a;
}

.preview-bar > span:nth-child(2) {
  background: #e4c878;
}

.preview-bar > span:nth-child(3) {
  background: #83c2a6;
}

.preview-bar b {
  margin: 0 auto;
  padding-right: 29px;
  color: #948d98;
  font-family: var(--font-mono);
  font-size: 0.52rem;
  font-weight: 400;
}

.preview-body {
  padding: 1.35rem;
  background:
    radial-gradient(circle at 100% 0%, rgba(216, 180, 232, 0.3), transparent 13rem),
    #fbf9fc;
}

.preview-kicker {
  margin-bottom: 0.25rem;
  color: #754293;
  font-size: 0.55rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.preview-title {
  font-size: 1.25rem;
  font-weight: 750;
  letter-spacing: -0.035em;
}

.level-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  margin-top: 1rem;
  padding: 4px;
  border: 1px solid #e6dfea;
  border-radius: 10px;
  background: #fff;
}

.level-row span {
  padding: 5px 2px;
  border-radius: 7px;
  color: #8b8490;
  font-size: 0.58rem;
  font-weight: 800;
  text-align: center;
}

.level-row .active {
  background: #754293;
  box-shadow: 0 5px 12px rgba(117, 66, 147, 0.22);
  color: #fff;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  margin: 0.85rem 0 0.35rem;
  color: #716a79;
  font-size: 0.58rem;
}

.progress-meta strong {
  color: #211b26;
}

.progress-track {
  height: 5px;
  overflow: hidden;
  border-radius: 999px;
  background: #e8e2eb;
}

.progress-track i {
  display: block;
  width: 28%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #754293, #2f8663);
}

.chapter-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.65rem;
  margin-top: 1rem;
  padding: 0.72rem;
  border: 1px solid rgba(117, 66, 147, 0.38);
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 9px 24px rgba(55, 38, 67, 0.08);
}

.chapter-number {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 10px;
  background: #f0e6f5;
  color: #754293;
  font-size: 0.62rem;
  font-weight: 800;
}

.chapter-card small,
.chapter-card strong {
  display: block;
}

.chapter-card small {
  color: #754293;
  font-size: 0.46rem;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.chapter-card strong {
  font-size: 0.67rem;
}

.chapter-card > b {
  padding: 0.35rem 0.45rem;
  border-radius: 7px;
  background: #754293;
  color: #fff;
  font-size: 0.52rem;
}

.hobby-tags {
  gap: 0.55rem;
}

.hobby-tags .tag {
  padding: 0.48rem 0.85rem;
  border-radius: 999px;
  font-family: var(--font-sans);
  font-size: 0.84rem;
}

footer {
  padding-top: 2.2rem;
  border-top: 1px solid var(--border);
  color: var(--ink-soft);
  font-size: 0.78rem;
  text-align: center;
}

@keyframes enter {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes like-pulse {
  to {
    color: var(--coral);
    transform: scale(1.12);
  }
}

@media (max-width: 820px) {
  .project-featured {
    grid-template-columns: 1fr;
  }

  .doquence-preview {
    width: 100%;
    max-width: 560px;
    transform: none;
  }
}

@media (max-width: 680px) {
  .wrap {
    width: min(100% - 2rem, 1040px);
    padding-top: 5.5rem;
  }

  .controls {
    top: 0.8rem;
    right: 0.8rem;
  }

  .hero {
    margin-bottom: 5rem;
  }

  .focus-list,
  .project-grid {
    grid-template-columns: 1fr;
  }

  .project-featured {
    grid-column: auto;
    padding: 1.25rem;
  }

  .project-heading {
    grid-template-columns: auto 1fr;
  }

  .project-status {
    grid-column: 1 / -1;
    justify-self: start;
  }

  .links a {
    font-size: 0.75rem;
  }

  .block {
    margin-bottom: 4.25rem;
  }
}

@media (max-width: 460px) {
  .controls {
    gap: 0.38rem;
  }

  #site-like {
    min-width: 60px;
    padding: 0 0.62rem;
  }

  .links {
    align-items: stretch;
    flex-direction: column;
  }

  .links a {
    justify-content: center;
  }

  .project-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .chapter-card {
    grid-template-columns: auto 1fr;
  }

  .chapter-card > b {
    grid-column: 2;
    justify-self: start;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}