/* =========================================================
   阿默 — personal site
   ========================================================= */

@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('../fonts/inter-500.woff2') format('woff2');
  font-weight: 500 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Instrument';
  src: url('../fonts/instrument-serif-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #0f0d0b;
  --bg-soft: #17130f;
  --ink: #f3ece1;
  --muted: #9b8f80;
  --line: rgba(243, 236, 225, 0.14);
  --accent: #e2562c;
  --accent-soft: rgba(226, 86, 44, 0.16);
  --maxw: 1320px;
  --pad: clamp(20px, 4.4vw, 64px);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', sans-serif;
  --serif: 'Instrument', 'Songti SC', 'SimSun', Georgia, serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: #fff; }

a { color: inherit; text-decoration: none; }
img, svg, canvas { display: block; max-width: 100%; }
h1, h2, h3, p, ul { margin: 0; }
ul { padding: 0; list-style: none; }
em { font-style: normal; color: var(--accent); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 2px;
}

/* ---------- texture ---------- */

.grain {
  position: fixed;
  inset: -50%;
  z-index: 90;
  pointer-events: none;
  opacity: 0.28;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
  animation: grainShift 8s steps(6) infinite;
}
@keyframes grainShift {
  0%, 100% { transform: translate(0, 0); }
  16% { transform: translate(-2%, 1%); }
  33% { transform: translate(1%, -2%); }
  50% { transform: translate(-1%, 2%); }
  66% { transform: translate(2%, 1%); }
  83% { transform: translate(-2%, -1%); }
}

.progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 110;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  will-change: transform;
}

.vignette {
  position: fixed;
  inset: 0;
  z-index: 80;
  pointer-events: none;
  background: radial-gradient(120% 90% at 50% 40%, transparent 45%, rgba(0, 0, 0, 0.55) 100%);
}

/* ---------- nav ---------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px var(--pad);
  transition: background 0.4s var(--ease), backdrop-filter 0.4s var(--ease), padding 0.4s var(--ease);
}
.nav.scrolled {
  padding-top: 14px;
  padding-bottom: 14px;
  background: rgba(15, 13, 11, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid rgba(243, 236, 225, 0.07);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--serif);
  font-size: 26px;
  letter-spacing: 0.08em;
}
.brand-mark { line-height: 1; }
.brand-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  align-self: center;
}

.nav-links {
  display: flex;
  gap: clamp(18px, 2.6vw, 40px);
  font-size: 13px;
  letter-spacing: 0.04em;
}
.nav-links a {
  position: relative;
  display: inline-flex;
  gap: 6px;
  align-items: baseline;
  color: var(--muted);
  transition: color 0.3s var(--ease);
}
.nav-links a span {
  font-size: 10px;
  color: rgba(243, 236, 225, 0.35);
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { transform: scaleX(1); }

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}
.status:hover { border-color: var(--accent); color: var(--ink); }
.pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #54c08a;
  box-shadow: 0 0 0 0 rgba(84, 192, 138, 0.6);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(84, 192, 138, 0.55); }
  70% { box-shadow: 0 0 0 7px rgba(84, 192, 138, 0); }
  100% { box-shadow: 0 0 0 0 rgba(84, 192, 138, 0); }
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px var(--pad) 60px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(46% 42% at var(--mx, 62%) var(--my, 42%), rgba(226, 86, 44, 0.22), transparent 70%),
    radial-gradient(60% 60% at 80% 20%, rgba(226, 86, 44, 0.08), transparent 65%);
  transition: background 0.6s linear;
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  align-items: center;
  gap: clamp(24px, 4vw, 72px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  display: inline-block;
  transform: rotate(45deg);
}

.headline {
  margin: 22px 0 26px;
  font-size: clamp(3.3rem, 7.6vw, 7.6rem);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.045em;
}
.headline .line {
  display: block;
  transform-origin: left center;
}
.headline .accent em { position: relative; }
.headline .accent em::after {
  content: '';
  position: absolute;
  left: -1%;
  right: -1%;
  bottom: -0.06em;
  height: 0.042em;
  background: var(--accent);
  opacity: 0.95;
  transform: scaleX(var(--u, 0));
  transform-origin: left;
  transition: transform 1.1s var(--ease) 0.5s;
}

.lede {
  max-width: 30em;
  color: var(--muted);
  font-size: clamp(14px, 1.15vw, 17px);
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 38px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 26px;
  border-radius: 999px;
  font-size: 14px;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  transition: transform 0.4s var(--ease), background 0.4s var(--ease), border-color 0.4s var(--ease), color 0.4s var(--ease);
  will-change: transform;
}
.btn-primary {
  background: var(--ink);
  color: #17130f;
  font-weight: 500;
}
.btn-primary:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }
.btn-primary .arr { transition: transform 0.4s var(--ease); }
.btn-primary:hover .arr { transform: translateY(3px); }
.btn-ghost {
  border-color: var(--line);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--ink); transform: translateY(-2px); }

/* stage */

.stage {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.stage-inner {
  position: relative;
  width: min(44vw, 560px);
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  transform: translate3d(0, calc(var(--parallax, 0) * -1px), 0);
}
#charCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: none;
  object-fit: contain;
}
body.mode-frames #charCanvas { display: block; }
body.mode-frames #mascot { display: none; }

#mascot {
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 40px 60px rgba(0, 0, 0, 0.55));
  animation: float 7s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
#head {
  transform-box: fill-box;
  transform-origin: 50% 78%;
  transition: transform 0.18s ease-out;
}
#eyes .eye {
  transform-box: fill-box;
  transform-origin: center;
}
#eyes .pupil {
  transition: transform 0.12s ease-out;
}
body.is-blinking #eyes .eye { transform: scaleY(0.08); }
#eyes .eye { transition: transform 0.09s ease-in; }

.stage-hint {
  margin-top: 14px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(243, 236, 225, 0.38);
}

.scroll-cue {
  position: absolute;
  bottom: 30px;
  left: var(--pad);
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 10px;
  letter-spacing: 0.24em;
  color: rgba(243, 236, 225, 0.4);
  z-index: 2;
}
.scroll-cue .line {
  width: 64px;
  height: 1px;
  background: linear-gradient(90deg, rgba(243, 236, 225, 0.5), transparent);
  position: relative;
  overflow: hidden;
}
.scroll-cue .line::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent);
  animation: cue 2.6s var(--ease) infinite;
}
@keyframes cue {
  0% { transform: translateX(-100%); }
  60%, 100% { transform: translateX(100%); }
}

/* ---------- marquee ---------- */

.marquee {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.015);
}
.marquee-track {
  display: flex;
  align-items: center;
  gap: 42px;
  width: max-content;
  animation: marquee 34s linear infinite;
}
.marquee-track span {
  font-family: var(--serif);
  font-size: clamp(30px, 4.4vw, 58px);
  letter-spacing: 0.02em;
  color: rgba(243, 236, 225, 0.9);
  white-space: nowrap;
}
.marquee-track i {
  font-style: normal;
  color: var(--accent);
  font-size: clamp(14px, 1.6vw, 20px);
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- sections ---------- */

.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(90px, 12vw, 170px) var(--pad);
}

.section-head {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 24px;
  margin-bottom: clamp(40px, 6vw, 80px);
}
.section-head .eyebrow { grid-column: 1 / -1; }
.section-title {
  font-size: clamp(2.1rem, 4.6vw, 4.2rem);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -0.035em;
}
.section-link {
  font-size: 13px;
  color: var(--muted);
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.section-link:hover { color: var(--ink); border-color: var(--accent); }
.section-link .arr { transition: transform 0.4s var(--ease); }
.section-link:hover .arr { transform: translate(3px, -3px); }

/* work cards */

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(14px, 2vw, 28px);
}
.card {
  display: block;
  position: relative;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}
.card-art {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: 4px;
  display: grid;
  place-items: center;
  transition: transform 0.7s var(--ease);
}
.card:hover .card-art { transform: translateY(-4px); }
.card-art::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.5));
  opacity: 0.9;
}
.card-glyph {
  font-family: var(--serif);
  font-size: clamp(80px, 11vw, 150px);
  color: rgba(255, 255, 255, 0.9);
  mix-blend-mode: overlay;
  z-index: 1;
  transform: translateY(0);
  transition: transform 0.9s var(--ease), letter-spacing 0.9s var(--ease);
}
.card:hover .card-glyph { transform: translateY(-8px) scale(1.04); }

.card[data-tone='a'] .card-art {
  background:
    radial-gradient(120% 90% at 20% 10%, #f0a35e 0%, transparent 55%),
    radial-gradient(90% 80% at 90% 90%, #8c2a12 0%, transparent 60%),
    linear-gradient(160deg, #2a130c, #6d2a16 60%, #c9502a);
}
.card[data-tone='b'] .card-art {
  background:
    radial-gradient(90% 80% at 70% 0%, #4c7f95 0%, transparent 55%),
    radial-gradient(80% 70% at 10% 100%, #1d2b3f 0%, transparent 60%),
    linear-gradient(160deg, #0b1420, #14303d 55%, #2f6272);
}
.card[data-tone='c'] .card-art {
  background:
    radial-gradient(100% 80% at 80% 10%, #d9c37a 0%, transparent 55%),
    radial-gradient(90% 70% at 10% 90%, #3c3a1f 0%, transparent 60%),
    linear-gradient(160deg, #191a10, #40401f 55%, #8d8340);
}

.card-meta {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-areas:
    'idx title year'
    'idx sub year';
  column-gap: 14px;
  align-items: baseline;
  padding: 16px 2px 0;
}
.card-index {
  grid-area: idx;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.1em;
}
.card-meta h3 {
  grid-area: title;
  font-size: clamp(15px, 1.5vw, 18px);
  font-weight: 500;
  letter-spacing: -0.01em;
}
.card-meta p {
  grid-area: sub;
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}
.card-year {
  grid-area: year;
  font-size: 11px;
  color: rgba(243, 236, 225, 0.4);
}

/* about */

.about { border-top: 1px solid var(--line); }
.about-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: clamp(36px, 7vw, 110px);
}
.about-statement {
  margin: 24px 0 30px;
  font-size: clamp(1.8rem, 3.4vw, 3.2rem);
  font-weight: 500;
  line-height: 1.24;
  letter-spacing: -0.03em;
}
.about-statement em {
  background: linear-gradient(transparent 62%, rgba(226, 86, 44, 0.22) 62%);
}
.about-text {
  max-width: 34em;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.95;
}

.about-side { display: flex; flex-direction: column; gap: 0; }
.stat {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.stat:first-child { border-top: 1px solid var(--line); }
.stat strong {
  font-family: var(--serif);
  font-size: clamp(34px, 4vw, 52px);
  font-weight: 400;
  line-height: 1;
  color: var(--ink);
}
.stat span { font-size: 12px; color: var(--muted); letter-spacing: 0.06em; }

.service-list { margin-top: 34px; display: grid; gap: 2px; }
.service-list li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 12px 0;
  font-size: 14px;
  border-bottom: 1px solid rgba(243, 236, 225, 0.06);
  color: rgba(243, 236, 225, 0.86);
}
.service-list li span { font-size: 10px; color: var(--accent); letter-spacing: 0.1em; }

/* contact */

.contact {
  border-top: 1px solid var(--line);
  text-align: center;
  padding-bottom: clamp(70px, 10vw, 140px);
}
.contact-title {
  margin: 26px 0 40px;
  font-size: clamp(2.4rem, 6.4vw, 6rem);
  font-weight: 500;
  line-height: 1.04;
  letter-spacing: -0.04em;
}
.mail {
  display: inline-block;
  font-family: var(--serif);
  font-size: clamp(22px, 3.4vw, 44px);
  letter-spacing: 0.01em;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  transition: color 0.4s var(--ease), border-color 0.4s var(--ease);
}
.mail:hover { color: var(--accent); border-color: var(--accent); }

.socials {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}
.socials a {
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.socials a:hover { color: var(--ink); border-color: var(--ink); }

/* footer */

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 26px var(--pad);
  border-top: 1px solid var(--line);
  font-size: 11px;
  color: rgba(243, 236, 225, 0.42);
  letter-spacing: 0.06em;
}
.footer a { transition: color 0.3s var(--ease); }
.footer a:hover { color: var(--ink); }
.footer-note { font-family: var(--serif); letter-spacing: 0.04em; }

/* ---------- reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }
.headline .reveal:nth-child(1) { transition-delay: 0.05s; }
.headline .reveal:nth-child(2) { transition-delay: 0.13s; }
.headline .reveal:nth-child(3) { transition-delay: 0.21s; }
.headline .reveal:nth-child(4) { transition-delay: 0.29s; }

/* ---------- responsive ---------- */

@media (max-width: 1024px) {
  .headline { font-size: clamp(3rem, 8.6vw, 6rem); }
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .hero { padding-top: 104px; }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 26px;
  }
  .stage { order: -1; }
  .stage-inner { width: min(72vw, 380px); }
  .headline { font-size: clamp(2.9rem, 12.5vw, 5rem); }
  .scroll-cue { display: none; }
  .work-grid { grid-template-columns: 1fr; gap: 34px; }
  .card-art { aspect-ratio: 4 / 3; }
  .about-grid { grid-template-columns: 1fr; }
  .section-head { grid-template-columns: 1fr; }
  .section-link { justify-self: start; }
  .footer { justify-content: flex-start; }
}

@media (max-width: 480px) {
  .status { display: none; }
  .brand { font-size: 22px; }
  .btn { padding: 13px 22px; }
}

/* 静态快照模式（?snap=1），只为截图/预览用 */
.snap .reveal,
.snap .headline .accent em::after {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
}
.snap .reveal,
.snap .headline .line { transform: none !important; }
.snap .grain,
.snap .marquee-track { animation: none !important; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .grain, .marquee-track, .scroll-cue .line::after, .pulse { animation: none !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .stage-inner { transform: none; }
}