@font-face {
  font-family: "Alibaba PuHuiTi";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/AlibabaPuHuiTi-2-55-Regular.ttf") format("truetype");
}

@font-face {
  font-family: "Alibaba PuHuiTi";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../assets/fonts/AlibabaPuHuiTi-2-65-Medium.ttf") format("truetype");
}

:root {
  --bg: #f9f7f3;
  --text: #15140f;
  --black: #000;
  --accent: #e96d5a;
  --divider: rgba(21, 20, 15, 0.12);
  --header-h: 140px;
  --font-logo: "Playfair Display", Georgia, serif;
  --font-nav: "Asul", sans-serif;
  --font-designing: "Asul", sans-serif;
  --font-interface: "Inclusive Sans", sans-serif;
  --font-zh: "Alibaba PuHuiTi", "Noto Sans SC", "PingFang SC", sans-serif;
  --font-player: "Alibaba PuHuiTi", "Noto Sans SC", sans-serif;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-nav);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  overflow-x: hidden;
}

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

.home-gallery__group-inner img,
.project-detail__thumb img,
.pd-stack img,
.pd-stack .pd-layer--gif,
.pd-stack .pd-layer--bg,
.home-canvas__bg,
.home-hero__title-img,
.home-hero__gif,
.home-gallery__slide-inner img,
.home-gallery__slide-deco-clip img,
.home-timeline img,
.site-header__avatar,
.music-player__cover,
.about__layer {
  max-width: none;
}

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

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

ul, ol { list-style: none; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg);
  border-bottom: 1px solid var(--divider);
  padding: 0 100px;
}

.site-header__logo {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  padding-left: 0;
  font-family: var(--font-logo);
  font-size: 1.25rem;
  letter-spacing: 0.02em;
}

.site-header__tools {
  flex: 0 1 auto;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-width: 0;
  padding: 0;
}

.site-header__nav {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 2.5rem;
  padding-right: 0;
}

.site-header__nav a {
  font-family: var(--font-nav);
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  position: relative;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.site-header__nav a[data-flicker].is-flickering {
  animation: nav-flicker 0.1s steps(2) 2 forwards;
}

@keyframes nav-flicker {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

.site-header__avatar {
  width: 55px;
  height: 55px;
  border-radius: 50%;
  object-fit: cover;
  margin-left: 0.5rem;
}

.music-player {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0;
  width: 312px;
  height: 65px;
  padding: 0 12px 0 8px;
  border-radius: 5px;
  border: 1px solid #d4d4d4;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(7.7px);
  -webkit-backdrop-filter: blur(7.7px);
  color: var(--text);
  flex-shrink: 0;
  box-sizing: border-box;
}

.site-header .music-player {
  display: none;
}

.site-header .music-player.is-visible {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-right: 18px;
  margin-left: 0;
  transform: translateY(-1px);
  position: relative;
  left: auto;
  top: auto;
}

.site-header .music-player .music-player__toggle {
  position: relative;
  top: auto;
  left: auto;
  width: 51px;
  height: 51px;
  min-width: 51px;
  min-height: 51px;
  flex: 0 0 51px;
}

.site-header .music-player .music-player__cover {
  position: relative;
  top: auto;
  left: auto;
  width: 50.98px;
  height: 50.38px;
  margin-left: 11px;
}

.site-header .music-player .music-player__marquee {
  position: relative;
  top: auto;
  left: auto;
  width: 216px;
  margin-left: 12px;
}

.site-header .music-player .music-player__icon--play img {
  width: 15px;
  height: 15px;
  transform: rotate(90deg);
}

.site-header .music-player .music-player__icon--pause::before,
.site-header .music-player .music-player__icon--pause::after {
  width: 5px;
  height: 18px;
}

.music-player__toggle {
  position: relative;
  z-index: 2;
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: -10px;
}

.music-player__icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.music-player__icon--play img {
  width: 15px;
  height: 15px;
  transform: rotate(90deg);
}

.music-player__icon--pause {
  display: none;
  gap: 5px;
}

.music-player__icon--pause::before,
.music-player__icon--pause::after {
  content: "";
  display: block;
  width: 6px;
  height: 21px;
  background: var(--text);
}

.music-player.is-playing .music-player__icon--play {
  display: none;
}

.music-player.is-playing .music-player__icon--pause {
  display: flex;
}

.music-player__cover {
  width: 51px;
  height: 51px;
  border-radius: 3px;
  object-fit: cover;
  flex-shrink: 0;
}

.music-player__info {
  font-family: var(--font-player);
  font-size: 0.8125rem;
  line-height: 1.2;
  max-width: 140px;
}

.music-player__marquee {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  margin-left: 12px;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.music-player__marquee-track {
  display: flex;
  gap: 26px;
  width: max-content;
  font-family: var(--font-player);
  font-size: 20px;
  letter-spacing: 1px;
  text-transform: capitalize;
  white-space: nowrap;
  animation: music-marquee 12s linear infinite;
}

.music-player__marquee-track span {
  flex-shrink: 0;
}

@keyframes music-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(calc(-50% - 13px)); }
}

.hamburger {
  display: none;
  min-width: 44px;
  min-height: 44px;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 10px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: transform 0.3s var(--ease), opacity 0.3s;
}

.hamburger.is-active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.is-active span:nth-child(2) { opacity: 0; }
.hamburger.is-active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

.mobile-nav {
  display: none;
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: var(--bg);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 2rem;
}

.mobile-nav.is-open { display: flex; }

.mobile-nav a {
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  min-height: 44px;
  display: flex;
  align-items: center;
}

main { padding-top: var(--header-h); }

.accent { color: var(--accent); }

.tag {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  background: #d4ff3d;
  border: none;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

@media (max-width: 1024px) {
  .site-header__logo { flex: 0 0 auto; padding-left: 1.5rem; }
  .site-header__tools { padding-right: 1rem; }
  .site-header__nav { display: none; }
  .hamburger { display: flex; margin-right: 1rem; }
}

@media (max-width: 767px) {
  :root { --header-h: 80px; }
  .site-header__logo { font-size: 1rem; padding-left: 1rem; }
  .music-player__info { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .music-player__marquee-track {
    animation: none;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}