/* Layout: 首頁為暖灰整幅帶，下接數據列；其餘段落為「左欄標題／右欄內容」，白與暖灰交替，以細線分隔，不用卡片外框。主色為深松綠，只用在互動狀態。 */
:root {
  --white: #ffffff;
  --gray-bg: #f4f3ef;
  --tile: #e9e8e2;
  --chip: #ecebe5;
  --line: #e5e4de;
  --line-strong: #d8d7cf;
  --ink: #1d1f1e;
  --ink-2: #474a48;
  --ink-3: #87897f;
  --accent: #2f5d50;
  --ok: #2e9a5b;
  --night: #1b1d1c;

  --serif: "Newsreader", "Noto Serif TC", "Songti TC", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang TC", "Noto Sans TC", sans-serif;

  --max: 1080px;
  --gutter: clamp(20px, 5vw, 40px);
  --header-h: 60px;
  color-scheme: light;
}

/* ── Base ───────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--white);
  color: var(--ink-2);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: env(safe-area-inset-top, 0px);
  background: var(--white);
  z-index: 60;
}
h1,
h2,
h3,
h4,
p,
dl,
dd {
  margin: 0;
}
ul,
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  display: block;
  max-width: 100%;
}
button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}
::selection {
  background: var(--ink);
  color: var(--white);
}
:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
  border-radius: 4px;
}
main:focus {
  outline: none;
}
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 8px 14px;
  background: var(--ink);
  color: var(--white);
  border-radius: 6px;
  transform: translateY(-200%);
}
.skip-link:focus {
  transform: none;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: max(var(--gutter), env(safe-area-inset-left, 0px));
  padding-right: max(var(--gutter), env(safe-area-inset-right, 0px));
}

/* ── Type ───────────────────────────────────────────────── */
.title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(32px, 4vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.note {
  margin-top: 12px;
  font-size: 15px;
  color: var(--ink-3);
}
.lead {
  font-size: 17px;
  line-height: 1.95;
  color: var(--ink-2);
  max-width: 34em;
}
.subtitle {
  margin: 56px 0 24px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--ink-3);
}

/* ── Buttons & links ────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 24px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: background-color 0.2s, transform 0.15s;
}
.btn--dark {
  background: var(--ink);
  color: var(--white);
}
.btn--dark:hover {
  background: var(--accent);
}
.btn--dark:active {
  transform: scale(0.98);
}
.btn--sm {
  height: 32px;
  padding: 0 16px;
  font-size: 13px;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  color: var(--ink);
  white-space: nowrap;
}
.text-link span {
  transition: transform 0.2s;
}
.text-link:hover span {
  transform: translateY(2px);
}
.text-link--out:hover span,
#github-link:hover span {
  transform: translate(2px, -2px);
}
.text-link--sm {
  margin-top: 20px;
  font-size: 14px;
}

/* ── Header ─────────────────────────────────────────────── */
.header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 50;
  height: var(--header-h);
  background: rgba(244, 243, 239, 0.86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s, border-color 0.3s;
}
.header.is-scrolled {
  background: rgba(255, 255, 255, 0.9);
  border-bottom-color: var(--line);
}
.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}
.header__name {
  font-family: var(--serif);
  font-size: 19px;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.nav {
  display: flex;
  gap: 28px;
  margin-left: auto;
  height: 100%;
}
.nav a {
  position: relative;
  display: flex;
  align-items: center;
  font-size: 14px;
  color: var(--ink-2);
  transition: color 0.2s;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 16px;
  height: 1.5px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.25s;
}
.nav a:hover,
.nav a[aria-current="true"] {
  color: var(--ink);
}
.nav a[aria-current="true"]::after {
  transform: scaleX(1);
}
@media (max-width: 720px) {
  .nav {
    display: none;
  }
  .header__inner > .btn {
    margin-left: auto;
  }
}

/* ── Hero ───────────────────────────────────────────────── */
.hero {
  margin-top: calc(var(--header-h) * -1);
  padding-block: calc(var(--header-h) + clamp(48px, 7vw, 88px)) clamp(48px, 6vw, 72px);
  background: var(--gray-bg);
}
.hero__grid {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
  max-width: 640px;
  animation: fade-up 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}
.avatar {
  display: block;
  width: 96px;
  height: 96px;
  margin-bottom: 28px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--tile);
}
.status {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--ink-2);
}
.status__dot {
  position: relative;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ok);
}
.status__dot::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--ok);
  animation: pulse 2.4s ease-out infinite;
}
.status__sep {
  color: var(--ink-3);
}
.hero__name {
  margin-top: 14px;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(46px, 5.6vw, 72px);
  line-height: 1.1;
  letter-spacing: 0.06em;
  color: var(--ink);
}
.hero__lead {
  max-width: 30em;
  font-size: clamp(16.5px, 1.5vw, 18px);
  line-height: 1.95;
  color: var(--ink-2);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 28px;
  margin-top: 32px;
}
.hero__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  margin-top: 24px;
  font-size: 14px;
  color: var(--ink-2);
}
.hero__links a,
.hero__email {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 0.2s;
}
.hero__links a:hover {
  color: var(--ink);
}
.hero__links i {
  font-size: 15px;
  color: var(--ink);
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 32px;
  margin-top: clamp(48px, 6vw, 72px);
  border-top: 1px solid var(--line-strong);
}
.fact {
  display: flex;
  flex-direction: column-reverse;
  justify-content: flex-end;
  gap: 4px;
  padding-top: 24px;
}
.fact__value {
  font-family: var(--serif);
  font-size: clamp(28px, 3.2vw, 36px);
  line-height: 1.2;
  color: var(--ink);
  font-variant-numeric: lining-nums tabular-nums;
  white-space: nowrap;
}
.fact__unit {
  margin-left: 6px;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink-3);
}
.fact__label {
  font-size: 13.5px;
  color: var(--ink-3);
}

@media (max-width: 760px) {
  .facts {
    grid-template-columns: 1fr;
  }
  .fact {
    padding-block: 18px;
    border-bottom: 1px solid var(--line-strong);
  }
}

/* ── Sections ───────────────────────────────────────────── */
.section {
  padding-block: clamp(80px, 10vw, 128px);
}
.section--gray {
  background: var(--gray-bg);
}
.split {
  display: grid;
  grid-template-columns: minmax(0, 200px) minmax(0, 1fr);
  gap: 48px clamp(48px, 6vw, 80px);
}
.split__rail {
  position: sticky;
  top: calc(var(--header-h) + 40px);
  align-self: start;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.split__body {
  min-width: 0;
}
.split__body > .subtitle:first-child {
  margin-top: 0;
}
@media (max-width: 860px) {
  .split {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .split__rail {
    position: static;
  }
}

/* 工作方式 */
.approach {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 40px;
  border-top: 1px solid var(--line);
}
.approach li {
  padding-block: 20px;
  border-bottom: 1px solid var(--line);
}
.approach__title {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 400;
  color: var(--ink);
}
.approach__desc {
  margin-top: 6px;
  font-size: 15px;
  line-height: 1.85;
}
@media (max-width: 600px) {
  .approach {
    grid-template-columns: 1fr;
  }
}

/* 經歷：標題列（職稱、公司｜年份），下接範圍說明與分主題段落，使用整欄寬度 */
.rows {
  border-top: 1px solid var(--ink);
}
.row {
  padding-block: 24px 8px;
  border-bottom: 1px solid var(--line);
}
.row__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 24px;
}
.row__title {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 400;
  line-height: 1.4;
  color: var(--ink);
}
.row__org {
  margin-left: 12px;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--ink-2);
}
.row__period {
  font-size: 13.5px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}
.row__desc {
  margin-top: 10px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink);
}
.row__body {
  margin-top: 4px;
}
.seg {
  display: grid;
  grid-template-columns: 9em minmax(0, 1fr);
  gap: 4px 24px;
  padding-block: 18px;
  border-top: 1px solid var(--line);
}
.row__desc + .seg {
  margin-top: 18px;
}
.seg__head {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.seg__label {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.9;
  color: var(--ink);
}
.seg__period {
  font-size: 13px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}
.seg__text {
  font-size: 15.5px;
  line-height: 1.9;
}
@media (max-width: 560px) {
  .seg {
    grid-template-columns: 1fr;
  }
  .row__org {
    display: block;
    margin-left: 0;
  }
}

/* 學歷：獨立一塊，左校名、右系所與年份 */
.edu {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 20px 32px;
  align-items: end;
  padding-block: 28px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}
.edu__name {
  font-family: var(--serif);
  font-size: 28px;
  line-height: 1.3;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.edu__en {
  margin-top: 6px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 15px;
  color: var(--ink-3);
}
.edu__detail {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.edu__period {
  font-size: 13px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}
.edu__programs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 24px;
}
@media (max-width: 560px) {
  .edu {
    grid-template-columns: 1fr;
    align-items: start;
  }
}
.edu__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
  transition: border-color 0.2s;
}
.edu__link:hover {
  border-color: var(--accent);
}
.edu__link span {
  font-size: 12px;
  color: var(--ink-3);
}
@media (max-width: 560px) {
  .row {
    grid-template-columns: 1fr;
    padding-block: 22px;
  }
  .row__period {
    padding-top: 0;
  }
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--chip);
  font-size: 13.5px;
  color: var(--ink);
}

/* 專案：左側清單、右側內容 */
.phead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}
.phead .text-link--sm {
  margin-top: 0;
}
.pwork {
  display: grid;
  grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
  gap: clamp(40px, 7vw, 96px);
  align-items: start;
}
.plist {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line-strong);
}
.pitem {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 14px 8px 14px 0;
  border-bottom: 1px solid var(--line-strong);
  text-align: left;
  color: var(--ink-3);
  transition: color 0.2s;
}
.pitem::after {
  content: "→";
  margin-left: auto;
  font-size: 15px;
  color: var(--accent);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.2s, transform 0.2s;
}
.pitem:hover {
  color: var(--ink);
}
.pitem[aria-selected="true"] {
  color: var(--ink);
}
.pitem[aria-selected="true"]::after {
  opacity: 1;
  transform: none;
}
.pitem__icon {
  flex: none;
  width: 36px;
  height: 36px;
  border-radius: 9px;
  object-fit: cover;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.06);
  filter: grayscale(1);
  opacity: 0.55;
  transition: opacity 0.2s, filter 0.2s;
}
.pitem:hover .pitem__icon,
.pitem[aria-selected="true"] .pitem__icon {
  filter: none;
  opacity: 1;
}
.pitem__icon--mark {
  display: grid;
  place-items: center;
  background: var(--ink);
  color: var(--white);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
}
.pitem__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.4;
}
.pitem__name {
  font-family: var(--serif);
  font-size: 17px;
}
.pitem__meta {
  font-size: 12.5px;
  color: var(--ink-3);
}
.pdetail {
  min-width: 0;
}
.ppanel {
  animation: fade-up 0.4s ease both;
}
.ppanel[hidden] {
  display: none;
}
.ppanel__cover {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  margin-bottom: 32px;
  border-radius: 12px;
}
.ppanel__index {
  font-family: var(--serif);
  font-size: 14px;
  color: var(--ink-3);
  font-variant-numeric: lining-nums tabular-nums;
  letter-spacing: 0.08em;
}
.ppanel__name {
  margin-top: 10px;
  font-family: var(--serif);
  font-size: clamp(34px, 3.8vw, 44px);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.ppanel__tagline {
  margin-top: 18px;
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.6;
  color: var(--ink);
}
.ppanel__desc {
  max-width: 32em;
  margin-top: 10px;
  font-size: 15.5px;
  line-height: 1.95;
}
.spec {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 40px;
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid var(--line-strong);
}
.spec__item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 14px;
}
.spec dt {
  font-size: 12.5px;
  color: var(--ink-3);
}
.spec dd {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.spec__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid var(--line-strong);
  transition: border-color 0.2s;
}
.spec__link:hover {
  border-color: var(--accent);
}
.spec__link span {
  font-size: 12px;
}
.spec__muted {
  color: var(--ink-3);
}
@media (max-width: 800px) {
  .pwork {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}
@media (max-width: 520px) {
  .spec {
    gap: 14px 32px;
  }
}

/* ── 洽詢與頁尾（深色收尾，左右兩欄） ───────────────── */
.closing {
  --c-ink: #f1f0eb;
  --c-ink-2: #b7b6ae;
  --c-ink-3: #85847c;
  --c-line: rgba(255, 255, 255, 0.12);
  background: var(--night);
  color: var(--c-ink-2);
}
.closing__inner {
  padding-block: clamp(80px, 10vw, 120px) 32px;
}
.closing__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 56px clamp(48px, 8vw, 112px);
  align-items: start;
}
.closing__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(36px, 4.4vw, 48px);
  line-height: 1.15;
  letter-spacing: 0.04em;
  color: var(--c-ink);
}
.closing__intro {
  max-width: 26em;
  margin-top: 18px;
  font-size: 15.5px;
  line-height: 1.9;
}
.closing__email {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--c-line);
}
.closing__address {
  font-family: var(--serif);
  font-size: clamp(22px, 2.5vw, 28px);
  color: var(--c-ink);
  overflow-wrap: anywhere;
  user-select: all;
}
.copy-btn {
  height: 32px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  font-size: 13px;
  color: var(--c-ink);
  transition: background-color 0.2s, border-color 0.2s;
}
.copy-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.5);
}
.closing__side {
  display: flex;
  flex-direction: column;
  gap: 44px;
}
.closing__label {
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--c-ink-3);
}
.closing__list {
  margin-top: 12px;
  border-top: 1px solid var(--c-line);
  font-size: 15px;
}
.closing__list li {
  padding-block: 11px;
  border-bottom: 1px solid var(--c-line);
  color: var(--c-ink);
}
.closing__link {
  display: flex;
  align-items: center;
  gap: 12px;
  transition: opacity 0.2s;
}
.closing__link:hover {
  opacity: 0.75;
}
.closing__link i {
  width: 18px;
  font-size: 16px;
  text-align: center;
}
.closing__handle {
  margin-left: auto;
  font-size: 13px;
  color: var(--c-ink-3);
}
.closing__arrow {
  font-size: 13px;
  color: var(--c-ink-3);
}
.closing__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 24px;
  margin-top: clamp(64px, 9vw, 104px);
  padding-top: 24px;
  border-top: 1px solid var(--c-line);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-ink-3);
}
@media (max-width: 800px) {
  .closing__grid {
    grid-template-columns: 1fr;
  }
}

/* ── Motion ─────────────────────────────────────────────── */
@keyframes fade-up {
  from {
    opacity: 0.001;
    transform: translateY(14px);
  }
}
@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 0.5;
  }
  70%,
  100% {
    transform: scale(2.6);
    opacity: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }
}