:root {
  --bg: #e9ebee;
  --ink: #14161a;
  --ink-2: #565b62;
  --ink-3: #979ca3;
  --line: #e2e4e8;
  --line-2: #d2d5da;
  --card: #ffffff;
  --red: #e8482f;
  --ui:
    -apple-system, BlinkMacSystemFont, "Inter", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", monospace;
  --ease: cubic-bezier(0, 0, 0.2, 1);
  --silk: cubic-bezier(0.32, 0.72, 0, 1);
  --morph: 0.4s var(--silk);
  --glass:
    inset 0 1px 0.5px rgba(255, 255, 255, 0.95),
    inset 0 0 0 1px rgba(255, 255, 255, 0.5),
    0 0 0 0.5px rgba(120, 132, 148, 0.16);
  --glass-dark:
    inset 0 1px 0.5px rgba(255, 255, 255, 0.22),
    inset 0 0 0 1px rgba(255, 255, 255, 0.07);
  --fs-base: 0.875rem;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html,
body {
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}
body {
  font-family: var(--ui);
  font-weight: 500;
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}
::selection {
  background: var(--red);
  color: #fff;
}
button,
a {
  font-family: inherit;
}
.no-trans,
.no-trans * {
  transition: none !important;
}
.lang {
  position: fixed;
  top: 22px;
  right: 26px;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}
.lang-btn {
  border: none;
  background: none;
  font: inherit;
  cursor: pointer;
  color: var(--ink-3);
  padding: 4px 3px;
  transition: color 0.2s;
}
.lang-btn:hover,
.lang-btn.active {
  color: var(--ink);
}
.lang-sep {
  color: var(--line-2);
}
.island {
  position: fixed;
  left: 50%;
  top: 50%;
  --rx: 0deg;
  --ry: 0deg;
  --lx: 0;
  --ly: 0;
  transform: translate(-50%, -50%) perspective(760px) rotateX(var(--rx))
    rotateY(var(--ry));
  z-index: 10;
  background: #ffffff70;
  backdrop-filter: blur(5px) saturate(1.3);
  -webkit-backdrop-filter: blur(5px) saturate(1.3);
  overflow: hidden;
  width: 60px;
  height: 32px;
  border-radius: 16px;
  box-shadow:
    var(--glass),
    inset calc(var(--lx) * -6px) calc(var(--ly) * -6px) 10px -6px #ffffffb3,
    inset calc(var(--lx) * 6px) calc(var(--ly) * 6px) 12px -8px #78849424,
    0 6px 22px -10px #1e2a3c29;
  transition:
    width var(--morph),
    height var(--morph),
    border-radius var(--morph);
  opacity: 0;
}
.island[data-state="start"] {
  cursor: pointer;
}
body.ready .island {
  opacity: 1;
  animation: island-in 0.55s var(--silk);
}
@keyframes island-in {
  0% {
    opacity: 0;
    scale: 0.7;
  }
  to {
    opacity: 1;
    scale: 1;
  }
}
.island.no-w-anim {
  transition:
    height var(--morph),
    border-radius var(--morph);
}
.panel {
  position: absolute;
  left: 50%;
  top: 50%;
  --tx: -50%;
  transform: translate(var(--tx), -50%) scale(0.72);
  opacity: 0;
  pointer-events: none;
  color: var(--ink);
  font-size: var(--fs-base);
  transition:
    opacity 0.15s ease,
    transform 0.15s ease;
}
.panel.active {
  transform: translate(var(--tx), -50%) scale(1);
  opacity: 1;
  pointer-events: auto;
  transition:
    opacity 0.38s var(--silk) 0.1s,
    transform 0.38s var(--silk) 0.1s;
}
.p-id {
  left: 0;
  --tx: 0%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  white-space: nowrap;
  transition:
    opacity 0.15s ease,
    transform 0.15s ease,
    padding var(--morph);
}
.p-id.active {
  transition:
    opacity 0.38s var(--silk) 0.1s,
    transform 0.38s var(--silk) 0.1s,
    padding var(--morph);
}
.island[data-state="start"] .p-id {
  padding: 4px;
}
.avatar {
  width: 36px;
  height: 36px;
  flex: none;
  border: none;
  cursor: pointer;
  padding: 0;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  background: #e4e7eb;
  box-shadow: var(--glass);
  transition:
    width var(--morph),
    height var(--morph);
}
.island[data-state="start"] .avatar {
  width: 24px;
  height: 24px;
}
.avatar:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}
.avatar-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  opacity: 0;
  transition: opacity 0.3s;
}
.avatar.has-photo .avatar-img {
  opacity: 1;
}
.avatar-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
  transition: opacity 0.3s;
}
.avatar.has-photo .avatar-fallback {
  opacity: 0;
}
.plus-btn {
  position: absolute;
  left: 32px;
  top: 50%;
  translate: 0 -50%;
  width: 24px;
  height: 24px;
  border: none;
  padding: 0;
  border-radius: 50%;
  background: var(--red);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    opacity 0.38s var(--silk) 0.1s,
    transform 0.38s var(--silk) 0.1s,
    filter 0.2s;
}
.plus-btn svg {
  width: 12px;
  height: 12px;
}
.plus-btn:hover {
  filter: brightness(1.08);
}
.island:not([data-state="start"]) .plus-btn {
  opacity: 0;
  transform: scale(0.5);
  pointer-events: none;
  transition:
    opacity 0.15s ease,
    transform 0.15s ease;
}
.home-id,
.home-actions {
  transition:
    opacity 0.38s var(--silk) 0.1s,
    transform 0.38s var(--silk) 0.1s;
}
.island[data-state="start"] .home-id,
.island[data-state="start"] .home-actions {
  opacity: 0;
  transform: scale(0.78);
  pointer-events: none;
  transition:
    opacity 0.15s ease,
    transform 0.15s ease;
}
.home-id {
  display: flex;
  flex-direction: column;
  margin: 0 8px 0 2px;
}
.home-hi {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-3);
}
.home-name {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.home-actions {
  display: flex;
  gap: 8px;
  margin-left: 2px;
  padding-left: 6px;
}
.dot-btn {
  width: 36px;
  height: 36px;
  flex: none;
  border: none;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: var(--glass-dark);
  transition:
    background 0.2s var(--ease),
    transform 0.15s var(--ease);
}
.dot-btn svg {
  width: 16px;
  height: 16px;
}
.dot-btn:hover {
  background: var(--red);
}
.dot-btn:active {
  transform: scale(0.94);
}
.dot-btn:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}
.dot-btn[data-tip]:after {
  content: attr(data-tip);
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  translate: -50% 0;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-3);
  white-space: nowrap;
  opacity: 0;
  transform: translateY(-3px);
  transition:
    opacity 0.2s,
    transform 0.2s;
  pointer-events: none;
}
@media (hover: hover) and (min-width: 1025px) {
  .dot-btn:hover[data-tip]:after {
    opacity: 1;
    transform: translateY(0);
  }
}
.p-about,
.p-projects,
.p-detail {
  width: min(24rem, calc(100vw - 2rem));
  padding: 18px 20px 20px;
}
.panel-head {
  display: flex;
  align-items: center;
  margin-bottom: 12px;
}
.panel-title {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}
.panel-count {
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--line-2);
}
.panel-head .close {
  margin-left: auto;
}
.gbtn {
  width: 26px;
  height: 26px;
  flex: none;
  border: none;
  border-radius: 6px;
  background: none;
  box-shadow: var(--glass);
  color: var(--ink);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    color 0.2s,
    box-shadow 0.2s,
    background 0.2s;
}
.gbtn svg {
  width: 12px;
  height: 12px;
}
.gbtn:hover {
  color: #fff;
  background: var(--red);
  box-shadow: inset 0 0 0 1px var(--red);
}
.gbtn:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}
.about-text {
  font-size: var(--fs-base);
  line-height: 1.75;
  color: #14161a80;
  letter-spacing: -0.0125rem;
}
.about-text .hl {
  color: var(--ink);
  font-weight: 600;
}
.about-text a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--line-2);
  transition:
    text-decoration-color 0.2s,
    color 0.2s;
}
.about-text a:hover {
  color: var(--red);
  text-decoration-color: var(--red);
}
.proj-list {
  list-style: none;
  max-height: 258px;
  overflow-y: auto;
  overflow-x: hidden;
  margin: 0 -4px;
  padding: 0 4px;
  scrollbar-width: thin;
  scrollbar-color: #c7cace transparent;
  -webkit-mask-image: linear-gradient(
    180deg,
    #000 0,
    #000 calc(100% - 16px),
    transparent 100%
  );
  mask-image: linear-gradient(
    180deg,
    #000 0,
    #000 calc(100% - 16px),
    transparent 100%
  );
}
.proj-list::-webkit-scrollbar {
  width: 5px;
}
.proj-list::-webkit-scrollbar-thumb {
  background: #c7cace;
  border-radius: 3px;
}
.proj-list::-webkit-scrollbar-track {
  background: transparent;
}
.proj-row {
  display: grid;
  grid-template-columns: 20px 1fr auto;
  gap: 11px;
  align-items: start;
  width: calc(100% + 16px);
  margin: 0 -8px;
  padding: 11px 8px;
  border: none;
  background: none;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  border-radius: 8px;
  transition: background 0.18s;
}
.proj-row:hover {
  background: #f1f3f5;
}
.proj-row:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: -2px;
}
.proj-list li + li .proj-row {
  border-top: 1px solid var(--line);
}
.proj-list li + li .proj-row:hover {
  border-top-color: transparent;
}
.pr-ic {
  color: var(--ink-2);
  margin-top: 1px;
  display: flex;
}
.pr-ic svg {
  width: 18px;
  height: 18px;
  stroke-width: 1.7;
}
.pr-body {
  min-width: 0;
}
.pr-line1 {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}
.pr-name {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  flex: none;
  transition: color 0.18s;
}
.proj-row:hover .pr-name {
  color: var(--red);
}
.pr-sum {
  font-size: 12.5px;
  color: var(--ink-2);
  flex: 1;
  min-width: 0;
  white-space: normal;
  overflow-wrap: anywhere;
  transition: color 0.18s;
}
.proj-row:hover .pr-sum {
  color: var(--ink-3);
}
.pr-more {
  display: block;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-2);
  transition:
    max-height 0.3s var(--ease),
    opacity 0.25s,
    margin-top 0.3s var(--ease);
}
.proj-row:hover .pr-more {
  max-height: 108px;
  opacity: 1;
  margin-top: 7px;
}
.pr-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 8px;
}
.pr-tg {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.02em;
  color: var(--ink-2);
  padding: 2px 7px;
  border-radius: 999px;
  box-shadow: inset 0 0 0 1px var(--line-2);
}
.pr-right {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 1px;
}
.pr-year {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
}
.pr-arrow {
  width: 13px;
  height: 13px;
  color: var(--red);
  opacity: 0;
  transform: translate(-4px);
  transition:
    opacity 0.2s,
    transform 0.2s;
  display: flex;
}
.pr-arrow svg {
  width: 13px;
  height: 13px;
}
.proj-row:hover .pr-arrow {
  opacity: 1;
  transform: none;
}
.foot-hint {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}
.back {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: none;
  background: none;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  padding: 5px 9px 5px 6px;
  margin-left: -6px;
  border-radius: 6px;
  transition: color 0.2s;
}
.back svg {
  width: 12px;
  height: 12px;
}
.back:hover {
  color: var(--red);
}
.detail-title-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
}
.detail-name {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.detail-year {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
}
.detail-desc {
  font-size: var(--fs-base);
  line-height: 1.75;
  color: var(--ink-2);
  letter-spacing: -0.0125rem;
}
.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}
.detail-tags .tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  padding: 3px 9px;
  border-radius: 999px;
  box-shadow: inset 0 0 0 1px var(--line-2);
}
.detail-link {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--red);
  text-decoration: none;
  transition: opacity 0.2s;
}
.detail-link:hover {
  opacity: 0.7;
}
.p-links {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px;
}
.lbtn {
  display: inline-flex;
  align-items: center;
  border: none;
  border-radius: 999px;
  overflow: hidden;
  background: none;
  box-shadow: var(--glass);
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
  transition:
    color 0.2s,
    background 0.2s,
    box-shadow 0.2s;
}
.lbtn .ic {
  width: 40px;
  height: 40px;
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lbtn .ic svg {
  width: 16px;
  height: 16px;
}
.lbtn-xhs .ic svg {
  width: 21px;
  height: 21px;
}
.lbtn .lbl {
  max-width: 0;
  opacity: 0;
  overflow: hidden;
  white-space: nowrap;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition:
    max-width 0.3s var(--ease),
    opacity 0.2s,
    padding 0.3s var(--ease);
}
.lbtn:hover {
  color: #fff;
  background: var(--red);
  box-shadow: inset 0 0 0 1px var(--red);
}
.lbtn:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}
@media (hover: hover) and (min-width: 1025px) {
  .lbtn:hover .lbl {
    max-width: 96px;
    opacity: 1;
    padding-right: 15px;
  }
}
@media (hover: none) and (pointer: coarse) {
  .gbtn {
    transition:
      color 0.2s,
      box-shadow 0.2s,
      background 0.2s,
      transform 0.12s var(--ease);
  }
  .lbtn {
    transition:
      color 0.2s,
      background 0.2s,
      box-shadow 0.2s,
      transform 0.12s var(--ease);
  }
  .back,
  .lang-btn {
    transition:
      color 0.2s,
      transform 0.12s var(--ease);
  }
  .dot-btn:active {
    transform: scale(0.9);
    background: var(--red);
  }
  .gbtn:active {
    transform: scale(0.9);
    color: #fff;
    background: var(--red);
    box-shadow: inset 0 0 0 1px var(--red);
  }
  .lbtn:active {
    transform: scale(0.92);
    color: #fff;
    background: var(--red);
    box-shadow: inset 0 0 0 1px var(--red);
  }
  .proj-row:active {
    background: #f1f3f5;
  }
  .proj-row:active .pr-name {
    color: var(--red);
  }
  .back:active {
    transform: scale(0.94);
    color: var(--red);
  }
  .detail-link:active {
    opacity: 0.55;
  }
  .lang-btn:active {
    transform: scale(0.9);
    color: var(--ink);
  }
}
.bfly-layer {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 4;
}
.bfly {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
}
.bfly-inner {
  position: relative;
  perspective: 260px;
}
.wing {
  position: absolute;
  top: 0;
  height: 100%;
  width: 50%;
  background-repeat: no-repeat;
  background-size: 200% 100%;
  backface-visibility: hidden;
  will-change: transform;
}
.wing.l {
  left: 0;
  transform-origin: right center;
  background-position: 0 center;
  transform: rotateY(14deg);
}
.wing.r {
  right: 0;
  transform-origin: left center;
  background-position: 100% center;
  transform: rotateY(-14deg);
}
@media (prefers-reduced-motion: reduce) {
  *,
  *:before,
  *:after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }
  .bfly-layer {
    display: none;
  }
}

/* ---------- first-visit hint, shown under the closed pill until it's opened once ---------- */
.start-hint {
  position: fixed;
  left: 50%;
  top: calc(50% + 28px);
  translate: -50% 0;
  z-index: 9;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s var(--ease), translate 0.5s var(--silk);
}
.start-hint::before {
  content: "";
  width: 1px;
  height: 12px;
  background: linear-gradient(var(--ink-3), transparent);
  opacity: 0.6;
}
.start-hint.on {
  opacity: 1;
  translate: -50% 4px;
  animation: hint-bob 2.4s ease-in-out 0.6s infinite;
}
@keyframes hint-bob {
  50% { translate: -50% 0; }
}
.island[data-state="start"]:hover .plus-btn {
  filter: brightness(1.08);
}

/* ---------- no-JS fallback ---------- */
.noscript {
  position: fixed;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 10px;
  padding: 24px;
  max-width: 560px;
  margin: auto;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
}
.noscript h1 { font-size: 18px; color: var(--ink); }
.noscript a { color: var(--ink); }