/* =========================================================
   Morose — Personal Portfolio
   手写 CSS，无外部依赖
   ========================================================= */

/* ---------- Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body,
h1, h2, h3, h4, p, figure, blockquote, dl, dd, ol, ul {
  margin: 0;
  padding: 0;
}

ol, ul { list-style: none; }

img, svg { display: block; max-width: 100%; }

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

/* ---------- Tokens ---------- */
:root {
  --bg: #f6f3ee;
  --bg-tint: #efeae2;
  --bg-deep: #171613;
  --ink: #171613;
  --ink-soft: #3a3730;
  --muted: #6f685d;
  --line: rgba(23, 22, 19, 0.14);
  --line-soft: rgba(23, 22, 19, 0.08);
  --accent: #9a7b4f;
  --accent-soft: #c9a97a;
  --paper: #faf8f4;

  --font-serif: "STZhongsong", "华文中宋", "Optima", "Baskerville", "Palatino Linotype",
    "Songti SC", "Source Han Serif SC", "Noto Serif SC", "SimSun", Georgia, serif;
  --font-sans: "Inter", "Helvetica Neue", "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "SFMono-Regular", "JetBrains Mono", "Consolas", "Menlo", monospace;

  --shell: 1180px;
  --gutter: clamp(20px, 5vw, 56px);
  --header-h: 76px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Base ---------- */
html {
  scroll-behavior: smooth;
  scrollbar-color: var(--accent-soft) var(--bg);
  /* 横向裁切放在 html 上，避免 body 变成滚动容器导致 fixed 页眉与滚动监听失效 */
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--ink);
  font-size: clamp(15px, 0.55vw + 13px, 16px);
  line-height: 1.85;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.nav-open { overflow: hidden; }

::selection {
  background: var(--ink);
  color: var(--bg);
}

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--ink);
  color: var(--bg);
  font-size: 13px;
  border-radius: 2px;
  transform: translateY(-160%);
  transition: transform 0.3s var(--ease);
}
.skip-link:focus-visible { transform: translateY(0); }

:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 4px;
}

/* 细颗粒质感 */
.grain {
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  transition: background-color 0.5s var(--ease-soft), border-color 0.5s var(--ease-soft);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background-color: rgba(246, 243, 238, 0.82);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom-color: var(--line-soft);
}

.header__inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  z-index: 2;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1;
  transition: background-color 0.4s var(--ease), color 0.4s var(--ease);
}

.brand:hover .brand__mark {
  background: var(--ink);
  color: var(--bg);
}

.brand__text {
  font-size: 11px;
  letter-spacing: 0.34em;
  font-weight: 500;
  padding-right: 0.1em;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 2.6vw, 40px);
}

.nav__link {
  position: relative;
  font-size: 13.5px;
  letter-spacing: 0.08em;
  color: var(--muted);
  padding-block: 6px;
  transition: color 0.3s var(--ease-soft);
}

.nav__link span {
  display: inline-block;
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.06em;
  color: var(--accent);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.5s var(--ease);
}

.nav__link:hover,
.nav__link.is-active { color: var(--ink); }

.nav__link:hover span,
.nav__link.is-active span { opacity: 1; transform: translateY(0); }

.nav__link:hover::after,
.nav__link.is-active::after { transform: scaleX(1); transform-origin: left center; }

.menu-btn {
  display: none;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  letter-spacing: 0.22em;
  z-index: 2;
}

.menu-btn__bars {
  display: grid;
  gap: 5px;
  width: 22px;
}

.menu-btn__bars i {
  display: block;
  height: 1px;
  background: currentColor;
  transition: transform 0.4s var(--ease), width 0.4s var(--ease);
}
.menu-btn__bars i:last-child { width: 70%; margin-left: auto; }

.menu-btn[aria-expanded="true"] .menu-btn__bars i:first-child {
  transform: translateY(3px) rotate(45deg);
}
.menu-btn[aria-expanded="true"] .menu-btn__bars i:last-child {
  width: 100%;
  transform: translateY(-3px) rotate(-45deg);
}

.progress {
  height: 2px;
  width: 0;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.4s linear;
}
.site-header.is-scrolled .progress { opacity: 1; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-h) + 48px);
  padding-bottom: 88px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero__orb {
  position: absolute;
  top: -18%;
  right: -12%;
  width: min(62vw, 760px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 30%, rgba(201, 169, 122, 0.42), rgba(201, 169, 122, 0) 68%);
  filter: blur(6px);
}

.hero__line {
  position: absolute;
  top: -10%;
  bottom: -10%;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--line-soft) 20%, var(--line-soft) 80%, transparent);
}

.hero__line--1 { right: 22%; }
.hero__line--2 { right: 22%; transform: translateX(60px); opacity: 0.6; }

.hero__inner { position: relative; z-index: 1; width: 100%; }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.28em;
  color: var(--accent);
  text-transform: uppercase;
}

.eyebrow__line {
  display: inline-block;
  width: 64px;
  height: 1px;
  background: currentColor;
  opacity: 0.45;
}

.hero__title {
  margin-top: clamp(24px, 4vw, 40px);
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.55rem, 6.4vw, 5.4rem);
  line-height: 1.16;
  letter-spacing: -0.015em;
}

.hero__title em {
  font-style: normal;
  color: var(--ink-soft);
  position: relative;
  white-space: nowrap;
}

.hero__title em::after {
  content: "";
  position: absolute;
  left: 0.06em;
  right: 0;
  bottom: 0.1em;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), rgba(154, 123, 79, 0));
  transform: scaleX(0);
  transform-origin: left center;
  animation: draw 1.6s 0.7s var(--ease) forwards;
}

@keyframes draw {
  to { transform: scaleX(1); }
}

.hero__lead {
  max-width: 34em;
  margin-top: clamp(22px, 3vw, 34px);
  color: var(--muted);
  font-size: clamp(14.5px, 1.1vw, 16.5px);
  line-height: 2.05;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: clamp(30px, 4vw, 44px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  height: 52px;
  padding-inline: 30px;
  font-size: 13.5px;
  letter-spacing: 0.1em;
  border-radius: 999px;
  transition: background-color 0.45s var(--ease), color 0.45s var(--ease),
    border-color 0.45s var(--ease), transform 0.45s var(--ease);
  will-change: transform;
}

.btn svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.45s var(--ease);
}

.btn--solid {
  background: var(--ink);
  color: var(--bg);
  border: 1px solid var(--ink);
}

.btn--solid:hover {
  background: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.btn--solid:hover svg { transform: translateX(4px); }

.btn--ghost {
  border: 1px solid var(--line);
  color: var(--ink);
}

.btn--ghost:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(28px, 5vw, 72px);
  margin-top: clamp(44px, 6vw, 76px);
  padding-top: 26px;
  border-top: 1px solid var(--line-soft);
  max-width: 780px;
}

.hero__meta dt {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero__meta dd {
  margin-top: 6px;
  font-size: 13.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #6f8f5f;
  box-shadow: 0 0 0 4px rgba(111, 143, 95, 0.14);
  animation: pulse 2.8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.scroll-hint {
  position: absolute;
  right: var(--gutter);
  bottom: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.3em;
  color: var(--muted);
}

.scroll-hint span { writing-mode: vertical-rl; }

.scroll-hint i {
  display: block;
  width: 1px;
  height: 46px;
  background: linear-gradient(180deg, var(--line), transparent);
  position: relative;
  overflow: hidden;
}

.scroll-hint i::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--accent);
  animation: scrollLine 2.4s var(--ease-soft) infinite;
}

@keyframes scrollLine {
  0% { transform: translateY(-100%); }
  60%, 100% { transform: translateY(100%); }
}

/* ---------- Marquee ---------- */
.marquee {
  border-block: 1px solid var(--line-soft);
  padding-block: 18px;
  overflow: hidden;
  background: var(--paper);
}

.marquee__track {
  display: flex;
  align-items: center;
  gap: 26px;
  width: max-content;
  animation: marquee 42s linear infinite;
  font-family: var(--font-serif);
  font-size: clamp(11px, 1vw, 13px);
  letter-spacing: 0.32em;
  color: var(--muted);
}

.marquee__track span:nth-child(even) { color: var(--accent); }

@keyframes marquee {
  to { transform: translateX(-33.333%); }
}

/* ---------- Section ---------- */
.section {
  position: relative;
  padding-block: clamp(72px, 10vw, 132px);
  scroll-margin-top: calc(var(--header-h) + 8px);
}

.section--tint {
  background: var(--bg-tint);
  border-block: 1px solid var(--line-soft);
}

.section__head {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: clamp(14px, 2vw, 26px);
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.section__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.section__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.5rem, 2.6vw, 2.05rem);
  letter-spacing: 0.06em;
  line-height: 1.2;
}

.section__en {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted);
}

.section__lead {
  margin-top: 26px;
  font-size: 13.5px;
  color: var(--muted);
}

.section__lead code {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 2px 6px;
  border: 1px solid var(--line-soft);
  border-radius: 3px;
  background: var(--paper);
}

/* ---------- About ---------- */
.about {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: clamp(32px, 6vw, 84px);
  margin-top: clamp(34px, 5vw, 60px);
  align-items: start;
}

.about__lead {
  font-family: var(--font-serif);
  font-size: clamp(1.28rem, 2.1vw, 1.72rem);
  line-height: 1.75;
  letter-spacing: 0.01em;
  margin-bottom: 30px;
}

.about__body p:not(.about__lead) {
  color: var(--muted);
  max-width: 38em;
  margin-bottom: 18px;
  line-height: 2.05;
}

.quote {
  margin-top: 34px;
  padding-left: 22px;
  border-left: 1px solid var(--accent);
  font-family: var(--font-serif);
  font-size: 15px;
  color: var(--ink-soft);
  letter-spacing: 0.03em;
}

.about__aside {
  display: grid;
  gap: 26px;
  position: sticky;
  top: calc(var(--header-h) + 28px);
}

.portrait {
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 10px;
}

.portrait svg {
  width: 100%;
  height: auto;
}

.portrait figcaption {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 2px 2px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.facts { display: grid; gap: 2px; }

.facts li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 12.5px;
}

.facts span {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.facts strong { font-weight: 500; text-align: right; }

.facts a {
  border-bottom: 1px solid var(--line);
  transition: color 0.3s var(--ease-soft), border-color 0.3s var(--ease-soft);
}

.facts a:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- Cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(18px, 3vw, 34px);
  margin-top: clamp(34px, 5vw, 56px);
}

.card {
  position: relative;
  padding: 30px 26px 26px;
  background: rgba(250, 248, 244, 0.6);
  border: 1px solid var(--line-soft);
  overflow: hidden;
  transition: transform 0.6s var(--ease), background-color 0.6s var(--ease),
    border-color 0.6s var(--ease);
}

.card::before {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s var(--ease);
}

.card:hover {
  transform: translateY(-4px);
  background: var(--paper);
  border-color: var(--line);
}

.card:hover::before { transform: scaleX(1); }

.card__index {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--accent);
}

.card__title {
  margin-top: 26px;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.25rem, 1.7vw, 1.45rem);
  letter-spacing: 0.04em;
}

.card__text {
  margin-top: 12px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.95;
}

.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.card__tags li {
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--muted);
  border: 1px solid var(--line-soft);
  padding: 3px 10px;
  border-radius: 999px;
}

/* ---------- Work ---------- */
.works {
  margin-top: clamp(26px, 4vw, 40px);
  border-top: 1px solid var(--line-soft);
}

.work {
  position: relative;
  display: grid;
  grid-template-columns: 64px 1fr auto 46px;
  align-items: center;
  gap: clamp(16px, 3vw, 40px);
  padding-block: clamp(24px, 3.4vw, 38px);
  padding-inline: 8px;
  border-bottom: 1px solid var(--line-soft);
  transition: padding-inline 0.55s var(--ease), color 0.45s var(--ease);
}

.work::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(154, 123, 79, 0.09), rgba(154, 123, 79, 0));
  opacity: 0;
  transition: opacity 0.55s var(--ease);
  pointer-events: none;
}

.work:hover { padding-inline: 20px; }
.work:hover::before { opacity: 1; }

.work__index {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
  transition: color 0.4s var(--ease);
}

.work:hover .work__index { color: var(--accent); }

.work__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.4rem, 2.6vw, 2.05rem);
  line-height: 1.3;
  letter-spacing: 0.02em;
  transition: transform 0.55s var(--ease);
}

.work:hover .work__title { transform: translateX(6px); }

.work__desc {
  margin-top: 8px;
  font-size: 13px;
  color: var(--muted);
  max-width: 46em;
}

.work__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

.work__tags li {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.work__tags li + li::before {
  content: "/";
  margin-right: 12px;
  color: var(--accent);
}

.work__year {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
  align-self: start;
  padding-top: 8px;
}

.work__arrow {
  justify-self: end;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: background-color 0.5s var(--ease), border-color 0.5s var(--ease),
    transform 0.5s var(--ease);
}

.work__arrow svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke 0.5s var(--ease);
}

.work:hover .work__arrow {
  background: var(--ink);
  border-color: var(--ink);
  transform: rotate(45deg);
}

.work:hover .work__arrow svg { stroke: var(--bg); }

/* ---------- Timeline ---------- */
.timeline {
  margin-top: clamp(34px, 5vw, 56px);
  border-top: 1px solid var(--line-soft);
}

.timeline__item {
  display: grid;
  grid-template-columns: minmax(120px, 180px) 1fr;
  gap: clamp(18px, 5vw, 64px);
  padding-block: 26px;
  border-bottom: 1px solid var(--line-soft);
  position: relative;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.7s var(--ease);
}

.timeline__item:hover::before { width: 100%; }

.timeline__year {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--accent);
  padding-top: 7px;
  white-space: nowrap;
}

.timeline__body h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.05rem, 1.6vw, 1.28rem);
  letter-spacing: 0.03em;
}

.timeline__body p {
  margin-top: 6px;
  font-size: 13px;
  color: var(--muted);
  max-width: 52em;
}

/* ---------- Contact ---------- */
.contact {
  position: relative;
  background: var(--bg-deep);
  color: var(--paper);
  padding-block: clamp(80px, 12vw, 150px);
  overflow: hidden;
  scroll-margin-top: var(--header-h);
}

.contact::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -10%;
  width: min(70vw, 820px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 169, 122, 0.16), transparent 62%);
  pointer-events: none;
}

.contact__inner { position: relative; z-index: 1; }

.eyebrow--light { color: var(--accent-soft); }

.contact__title {
  margin-top: 26px;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2rem, 5vw, 3.7rem);
  line-height: 1.32;
  letter-spacing: 0.01em;
}

.contact__title em {
  font-style: normal;
  color: var(--accent-soft);
}

.contact__text {
  margin-top: 26px;
  max-width: 32em;
  font-size: 14px;
  line-height: 2.05;
  color: rgba(250, 248, 244, 0.62);
}

.mail {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  margin-top: clamp(34px, 5vw, 52px);
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(250, 248, 244, 0.28);
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2.6vw, 1.85rem);
  letter-spacing: 0.04em;
  transition: color 0.45s var(--ease), border-color 0.45s var(--ease);
}

.mail svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.45s var(--ease);
}

.mail:hover {
  color: var(--accent-soft);
  border-bottom-color: var(--accent-soft);
}

.mail:hover svg { transform: translateX(6px); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(250, 248, 244, 0.1);
  padding-block: 26px;
  color: rgba(250, 248, 244, 0.58);
  font-size: 12px;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 28px;
}

.footer__brand {
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--paper);
}

.footer__brand span {
  margin: 0 5px 0 8px;
  opacity: 0.4;
}

.footer__note { letter-spacing: 0.04em; }

.footer__top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.08em;
  transition: color 0.3s var(--ease-soft);
}

.footer__top i {
  font-style: normal;
  transition: transform 0.4s var(--ease);
}

.footer__top:hover { color: var(--paper); }
.footer__top:hover i { transform: translateY(-3px); }

/* ---------- Reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: calc(var(--i, 0) * 90ms);
  will-change: opacity, transform;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .about { grid-template-columns: 1.3fr 1fr; gap: 40px; }
  .hero__line--1, .hero__line--2 { display: none; }
}

@media (max-width: 900px) {
  :root { --header-h: 68px; }

  .menu-btn { display: inline-flex; }

  .nav {
    position: fixed;
    inset: 0;
    z-index: -1;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 6px;
    padding: calc(var(--header-h) + 30px) var(--gutter) 60px;
    background: var(--bg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.45s var(--ease), transform 0.45s var(--ease), visibility 0.45s;
  }

  body.nav-open .nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav__link {
    font-family: var(--font-serif);
    font-size: clamp(1.6rem, 7vw, 2.2rem);
    letter-spacing: 0.04em;
    padding-block: 10px;
    color: var(--ink);
    width: 100%;
    border-bottom: 1px solid var(--line-soft);
  }

  .nav__link span {
    font-size: 10px;
    opacity: 1;
    transform: none;
    margin-right: 14px;
    vertical-align: middle;
  }

  .nav__link::after { display: none; }

  body.nav-open .brand,
  body.nav-open .menu-btn { color: var(--ink); }

  .about { grid-template-columns: 1fr; }
  .about__aside {
    position: static;
    grid-template-columns: minmax(0, 260px) 1fr;
    align-items: start;
  }

  .cards { grid-template-columns: 1fr; }
  .card { padding: 26px 22px; }
  .card__title { margin-top: 16px; }

  .work {
    grid-template-columns: 40px 1fr auto;
    grid-template-areas:
      "idx main main"
      "idx year arrow";
    row-gap: 14px;
    align-items: start;
  }
  .work__index { grid-area: idx; padding-top: 6px; }
  .work__main { grid-area: main; }
  .work__year { grid-area: year; align-self: center; padding-top: 0; }
  .work__arrow { grid-area: arrow; width: 34px; height: 34px; }
  .work:hover .work__title { transform: none; }
  .work:hover { padding-inline: 12px; }

  .timeline__item { grid-template-columns: 1fr; gap: 6px; padding-block: 22px; }
  .timeline__year { padding-top: 0; }
}

@media (max-width: 640px) {
  body { font-size: 14.5px; }

  .hero { padding-top: calc(var(--header-h) + 36px); padding-bottom: 64px; }
  .hero__title { font-size: clamp(2.15rem, 9.5vw, 2.9rem); }
  .hero__title em { white-space: normal; }
  .hero__lead br { display: none; }
  .hero__meta { gap: 20px 32px; margin-top: 36px; }
  .hero__meta > div { min-width: 40%; }
  .scroll-hint { display: none; }
  .hero__actions { gap: 10px; }
  .hero__actions .btn { flex: 1 1 0; padding-inline: 18px; }

  .about__aside { grid-template-columns: 1fr; }
  .portrait { max-width: 320px; }

  .section__en { display: none; }
  .section__head { grid-template-columns: auto 1fr; }

  .work { grid-template-columns: 28px 1fr; grid-template-areas: "idx main" "idx year"; }
  .work__arrow { display: none; }
  .work__desc { font-size: 12.5px; }
  .work__year { padding-top: 0; }

  .footer__inner { flex-direction: column; align-items: flex-start; gap: 8px; }
  .footer__top { display: none; }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  [data-reveal] { opacity: 1; transform: none; }
  .hero__title em::after { transform: scaleX(1); }
}

/* ---------- Print ---------- */
@media print {
  .site-header, .scroll-hint, .marquee, .grain { display: none; }
  body { background: #fff; color: #000; }
  [data-reveal] { opacity: 1; transform: none; }
  .contact, .site-footer { background: #fff; color: #000; }
  .section { padding-block: 24px; page-break-inside: avoid; }
}