/* ========== 1) Design Tokens ========== */
:root {
  --ink: #2b2620;
  --ink-soft: #62584d;
  --muted: #948678;
  --line: rgba(43, 38, 32, 0.1);
  --accent: #a35a38;
  --surface: rgba(255, 255, 255, 0.44);
  --surface-soft: rgba(255, 255, 255, 0.42);
  --font-sans: "Avenir Next", "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
}

/* ========== 2) Base ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  height: 100%;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 28px;
  font: 400 16px/1.7 var(--font-sans);
  color: var(--ink);
  background: radial-gradient(1200px circle at 15% 10%, #ffe5c7 0%, transparent 45%),
    radial-gradient(900px circle at 85% 15%, #d6f1e1 0%, transparent 50%),
    radial-gradient(800px circle at 20% 85%, #f5d7ff 0%, transparent 55%),
    #f6f1ea;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-underline-offset: 3px;
}

:where(a, button):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 8px;
}

.eyebrow {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.22em;
  line-height: 1.4;
  text-transform: uppercase;
  color: var(--muted);
}

/* ========== 3) Background Blobs ========== */
.blobs {
  position: fixed;
  inset: 0;
  z-index: 0;
  filter: blur(120px);
  opacity: 0.2;
  pointer-events: none;
  --cr-main-1: #2ac9de;
  --cr-main-2: #f087f4;
  --cr-1: color-mix(in srgb, var(--cr-main-1), var(--cr-main-2) 20%);
  --cr-2: color-mix(in srgb, var(--cr-main-1), var(--cr-main-2) 35%);
  --cr-3: color-mix(in srgb, var(--cr-main-1), var(--cr-main-2) 50%);
  --cr-4: color-mix(in srgb, var(--cr-main-1), var(--cr-main-2) 65%);
}

.blob {
  position: absolute;
  top: 0;
  left: 0;
  width: max(240px, 28vw);
  aspect-ratio: 1;
  border-radius: 50%;
  transform-origin: center;
  will-change: transform;
}

.blob:nth-of-type(1) {
  background: var(--cr-main-1);
}

.blob:nth-of-type(2) {
  background: var(--cr-main-2);
}

.blob:nth-of-type(3) {
  background: var(--cr-1);
}

.blob:nth-of-type(4) {
  background: whitesmoke;
}

.blob:nth-of-type(5) {
  background: var(--cr-3);
}

.blob:nth-of-type(6) {
  background: var(--cr-4);
}

.blob:nth-of-type(7) {
  background: var(--cr-2);
}

/* ========== 4) Shell Layout ========== */
.shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  width: min(1080px, calc(100vw - 56px));
  height: min(880px, calc(100vh - 56px));
  height: min(880px, calc(100dvh - 56px));
  min-height: 560px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: 0 32px 80px -36px rgba(80, 55, 30, 0.45),
    0 2px 10px rgba(80, 55, 30, 0.06);
  backdrop-filter: blur(22px) saturate(1.15);
  -webkit-backdrop-filter: blur(22px) saturate(1.15);
}

/* ========== 5) Sidebar ========== */
.sidebar {
  display: flex;
  flex-direction: column;
  padding: 30px 18px 22px;
  border-right: 1px solid var(--line);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.28),
    rgba(255, 255, 255, 0.1)
  );
}

.identity {
  padding: 0 10px;
}

.identity h1 {
  margin-top: 8px;
  font-size: 34px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.identity-role {
  margin-top: 4px;
  color: var(--ink-soft);
  font-size: 13px;
}

.nav {
  margin-top: 36px;
}

.nav-tabs {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tab-btn {
  padding: 9px 12px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--ink-soft);
  font: inherit;
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink);
}

.tab-btn.is-active {
  background: var(--ink);
  color: #fff;
  box-shadow: 0 8px 20px -10px rgba(43, 38, 32, 0.7);
}

.nav-links {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.nav-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--ink-soft);
  font-size: 13.5px;
  text-decoration: none;
  transition: background 0.18s ease, color 0.18s ease;
}

.nav-links a span {
  color: var(--muted);
  font-size: 12px;
  transition: color 0.18s ease, transform 0.18s ease;
}

.nav-links a:hover {
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink);
}

.nav-links a:hover span {
  color: var(--accent);
  transform: translate(1px, -1px);
}

.sidebar-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding: 0 12px;
  color: var(--muted);
  font-size: 12px;
}

.status-dot {
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #5a9e72;
  box-shadow: 0 0 0 3px rgba(90, 158, 114, 0.14);
}

/* ========== 6) Main Content ========== */
.main {
  min-width: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(43, 38, 32, 0.22) transparent;
}

.main::-webkit-scrollbar {
  width: 8px;
}

.main::-webkit-scrollbar-thumb {
  border: 2px solid transparent;
  border-radius: 4px;
  background: rgba(43, 38, 32, 0.18);
  background-clip: content-box;
}

.panel {
  display: none;
  padding: 42px 48px 40px;
}

.panel.is-active {
  display: block;
  animation: panel-in 0.3s ease both;
}

@keyframes panel-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.panel-head h2 {
  margin-top: 8px;
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.intro-lead {
  max-width: 62ch;
  margin-top: 16px;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.85;
  text-wrap: pretty;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.4;
}

.pill-status {
  border-color: rgba(163, 90, 56, 0.18);
  background: rgba(163, 90, 56, 0.08);
  color: #8a4a2e;
}

.intro-note {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.block {
  margin-top: 34px;
}

.block-title {
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
}

.highlights {
  display: grid;
  gap: 8px;
  list-style: none;
}

.highlights li {
  position: relative;
  padding-left: 16px;
  color: var(--ink-soft);
  font-size: 14.5px;
  line-height: 1.7;
}

.highlights li::before {
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.75;
  content: "";
}

/* ========== 7) Tech Stack ========== */
.stack {
  border-top: 1px solid var(--line);
}

.stack-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.stack-label {
  padding-top: 1px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.9;
  text-decoration: none;
  white-space: nowrap;
}

.stack-link:hover {
  color: var(--accent);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-width: 0;
}

.chip {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  padding: 5px 9px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.52);
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.4;
  white-space: nowrap;
}

.chip-accent {
  border-color: rgba(163, 90, 56, 0.16);
  background: rgba(163, 90, 56, 0.08);
  color: #8a4a2e;
}

/* ========== 8) Experience ========== */
.panel-note {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13.5px;
}

.timeline {
  display: grid;
  gap: 12px;
  margin-top: 26px;
  list-style: none;
}

.timeline-item {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-soft);
}

.timeline-top {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
}

.timeline-years {
  color: var(--muted);
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.timeline-company {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
}

.timeline-list {
  padding-left: 17px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

.timeline-list li {
  margin: 2px 0;
}

.timeline-list li::marker {
  color: var(--accent);
}

.timeline-extra {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
}

.extra-label {
  margin-right: 2px;
  color: var(--muted);
  font-size: 10.5px;
  letter-spacing: 0.14em;
}

/* ========== 9) Decorative Solar Terms ========== */
@font-face {
  font-family: "solar-term";
  src: url("solar-term/solar-term.woff");
}

.solar-term {
  position: fixed;
  top: 50%;
  left: 20px;
  width: 60px;
  height: 100vh;
  overflow: hidden;
  opacity: 0.01;
  pointer-events: none;
  transform: translateY(-50%);
  font-family: "solar-term";
}

.solar-term-content {
  display: flex;
  flex-direction: column;
  gap: 15px;
  animation: scroll-up 260s linear infinite;
  font-size: 14px;
  letter-spacing: 6px;
  user-select: none;
}

.solar-term-content span {
  writing-mode: vertical-lr;
}

@keyframes scroll-up {
  0% {
    transform: translateY(0);
  }

  100% {
    transform: translateY(-100%);
  }
}

@keyframes scroll-left {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-100%);
  }
}

/* ========== 10) Footer ========== */
#beian {
  position: fixed;
  bottom: 8px;
  left: 50%;
  z-index: 10;
  color: var(--muted);
  font-size: 11px;
  transform: translateX(-50%);
}

#beian a {
  margin: 0 5px;
  color: inherit;
  text-decoration: none;
}

#beian a:hover {
  color: var(--ink-soft);
}

/* ========== 11) Responsive ========== */
@media screen and (max-width: 920px) {
  body {
    align-items: flex-start;
    padding: 18px 14px 36px;
  }

  .shell {
    grid-template-columns: 1fr;
    width: 100%;
    height: auto;
    min-height: 0;
    border-radius: 20px;
  }

  .sidebar {
    padding: 24px 22px 18px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .identity h1 {
    font-size: 30px;
  }

  .nav {
    margin-top: 18px;
  }

  .nav-tabs {
    flex-direction: row;
    gap: 6px;
  }

  .tab-btn {
    flex: 1;
    text-align: center;
  }

  .nav-links {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 10px;
    padding-top: 10px;
  }

  .nav-links a {
    flex: 1 1 auto;
    justify-content: center;
    min-width: 92px;
  }

  .sidebar-meta {
    display: none;
  }

  #beian {
    display: none;
  }

  .main {
    overflow: visible;
  }

  .panel {
    padding: 28px 22px 40px;
  }

  .panel-head h2 {
    font-size: 26px;
  }

  .intro-lead {
    font-size: 15px;
  }

  .timeline-top {
    flex-direction: column;
    gap: 2px;
  }
}

@media screen and (max-width: 520px) {
  body {
    padding: 0 0 24px;
  }

  .shell {
    min-height: 100vh;
    min-height: 100dvh;
    border: 0;
    border-radius: 0;
  }

  .sidebar {
    padding: 22px 18px 16px;
  }

  .identity {
    padding: 0 4px;
  }

  .nav {
    margin-top: 16px;
  }

  .nav-links a {
    min-width: 0;
    padding: 7px 8px;
    font-size: 12.5px;
  }

  .panel {
    padding: 24px 18px 36px;
  }

  .panel-head h2 {
    font-size: 24px;
  }

  .stack-row {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 12px 0;
  }

  .stack-label {
    padding-top: 0;
  }

  .pill {
    font-size: 11.5px;
  }

  .timeline-item {
    padding: 16px;
  }

  .solar-term {
    top: inherit;
    bottom: 10px;
    left: 0;
    width: 100vw;
    height: 20px;
  }

  .solar-term-content {
    flex-direction: row;
    animation-name: scroll-left;
    white-space: nowrap;
  }

  .solar-term-content span {
    writing-mode: inherit;
  }
}

@media (prefers-reduced-motion: reduce) {
  .panel.is-active {
    animation: none;
  }

  .solar-term-content {
    animation: none;
  }
}