/* =========================================================
   拟物工作室 · nivin studio
   Aesthetic: paper atelier / museum of objects
   ========================================================= */

/* ---------- Tokens ---------- */
/* 浅色纸感：--ink 为纸底，--ivory 为墨色文字 */
:root {
  color-scheme: light;
  --ink: #f4efe4;
  --ink-soft: #efe9dc;
  --ink-lift: #fbf8f1;
  --ivory: #17140f;
  --ivory-2: #3d3830;
  --muted: #625a4c;
  --muted-2: #6f6658;
  --brass: #86642e;
  --brass-bright: #6d4f22;
  --brass-dim: rgba(134, 100, 46, .45);
  --vermilion: #b4402f;
  --line: rgba(23, 20, 15, .14);
  --line-soft: rgba(23, 20, 15, .075);
  --line-strong: rgba(23, 20, 15, .26);

  /* 主题相关表面 */
  --nav-bg: rgba(246, 242, 234, .82);
  --menu-bg: rgba(246, 242, 234, .97);
  --toast-bg: rgba(251, 248, 241, .97);
  --marquee-bg: #efe9dc;
  --scroll-thumb: #cec5b3;
  --page-bg:
    radial-gradient(90% 42% at 50% 0%, #fbf7ee 0%, rgba(251, 247, 238, 0) 58%),
    radial-gradient(72% 42% at 100% 100%, rgba(190, 160, 105, .10), transparent 62%);
  --glow-a: rgba(160, 124, 62, .16);
  --glow-b: rgba(160, 124, 62, .05);
  --spot: rgba(255, 252, 244, .55);
  --rail: rgba(23, 20, 15, .42);
  --ghost: #86642e;
  --hover-tint: rgba(134, 100, 46, .08);
  --plate-hi: #2a2318;
  --plate-lo: #13100b;
  --plate-edge: rgba(134, 100, 46, .55);
  --plate-shadow: rgba(70, 50, 20, .35);
  --cap-color: #4f483c;
  --seal-color: #a6382a;
  --seal-line: rgba(180, 64, 47, .9);
  --grain-opacity: .045;
  --grain-blend: multiply;

  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", "STSong", "SimSun", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --latin: "Cormorant Garamond", "Songti SC", "Times New Roman", Georgia, serif;

  --ease: cubic-bezier(.22, .68, .16, 1);
  --pad: clamp(20px, 4.6vw, 72px);
  --nav-h: 76px;
  --marquee-h: 54px;
}

/* ---------- Dark theme ---------- */
:root[data-theme="dark"] {
  color-scheme: dark;
  --ink: #0a0908;
  --ink-soft: #100f0c;
  --ink-lift: #17140f;
  --ivory: #ece5d8;
  --ivory-2: #c9c2b5;
  --muted: #a39a8b;
  --muted-2: #8a8172;
  --brass: #c3a26d;
  --brass-bright: #e3c893;
  --brass-dim: rgba(195, 162, 109, .55);
  --line: rgba(236, 229, 216, .13);
  --line-soft: rgba(236, 229, 216, .07);
  --line-strong: rgba(236, 229, 216, .26);

  --nav-bg: rgba(10, 9, 8, .72);
  --menu-bg: rgba(10, 9, 8, .97);
  --toast-bg: rgba(16, 15, 12, .94);
  --marquee-bg: rgba(255, 255, 255, .012);
  --scroll-thumb: #2a251d;
  --page-bg:
    radial-gradient(90% 42% at 50% 0%, #141210 0%, rgba(20, 18, 16, 0) 58%),
    radial-gradient(72% 42% at 100% 100%, rgba(195, 162, 109, .06), transparent 62%);
  --glow-a: rgba(195, 162, 109, .17);
  --glow-b: rgba(195, 162, 109, .06);
  --spot: rgba(227, 200, 147, .075);
  --rail: rgba(236, 229, 216, .26);
  --ghost: #c3a26d;
  --hover-tint: rgba(195, 162, 109, .07);
  --plate-hi: #3b3222;
  --plate-lo: #211b11;
  --plate-edge: rgba(195, 162, 109, .68);
  --plate-shadow: rgba(0, 0, 0, .8);
  --cap-color: #a39a8b;
  --seal-color: #d07a68;
  --seal-line: rgba(190, 90, 72, .85);
  --grain-opacity: .05;
  --grain-blend: overlay;
}


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

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

body {
  margin: 0;
  background-color: var(--ink);
  background-image: var(--page-bg);
  background-repeat: no-repeat;
  color: var(--ivory);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.75;
  letter-spacing: .012em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color .45s var(--ease), color .45s var(--ease);
}

h1,
h2,
h3,
h4,
p,
figure,
ol {
  margin: 0;
}

ol {
  padding: 0;
  list-style: none;
}

img {
  max-width: 100%;
}

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

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

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

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

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--ink);
}

::-webkit-scrollbar-thumb {
  background: var(--scroll-thumb);
  border-radius: 10px;
}

.wrap {
  width: 100%;
  max-width: 1360px;
  margin-inline: auto;
  padding-inline: var(--pad);
}

.section {
  position: relative;
  padding-block: clamp(84px, 11vw, 168px);
  scroll-margin-top: 60px;
}

.skip {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 400;
  padding: 10px 18px;
  background: var(--ivory);
  color: var(--ink);
  font-size: 12px;
  transition: top .3s var(--ease);
}

.skip:focus {
  top: 16px;
}

/* ---------- Atmosphere ---------- */
.grain {
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
  opacity: var(--grain-opacity);
  mix-blend-mode: var(--grain-blend);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
}

.progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  z-index: 210;
  background: transparent;
}

.progress span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, transparent, var(--brass-bright));
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 150;
  transition: background .5s var(--ease), border-color .5s var(--ease), backdrop-filter .5s;
  border-bottom: 1px solid transparent;
}

.nav.is-scrolled,
.menu-open .nav {
  background: var(--nav-bg);
  border-bottom-color: var(--line-soft);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
}

.nav__inner {
  width: 100%;
  max-width: 1360px;
  margin-inline: auto;
  padding-inline: var(--pad);
  height: var(--nav-h);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  justify-self: start;
}

.brand__mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--brass-dim);
  color: var(--brass-bright);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1;
  transition: background .4s var(--ease), color .4s var(--ease);
}

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

.brand__name {
  display: flex;
  flex-direction: column;
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: .1em;
  line-height: 1.3;
}

.brand__name em {
  font-family: var(--sans);
  font-style: normal;
  font-size: 8.5px;
  letter-spacing: .32em;
  color: var(--muted);
  margin-top: 2px;
}

.nav__links {
  display: flex;
  align-items: center;
  justify-self: center;
  gap: clamp(22px, 2.6vw, 42px);
}

.nav__links a {
  position: relative;
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--ivory-2);
  padding-block: 6px;
  transition: color .35s;
}

.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--brass);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .45s var(--ease);
}

.nav__links a:hover {
  color: var(--ivory);
}

.nav__links a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav__right {
  display: flex;
  align-items: center;
  justify-self: end;
  gap: clamp(14px, 1.8vw, 26px);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
  white-space: nowrap;
}

.status i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #68a06e;
  box-shadow: 0 0 0 0 rgba(104, 160, 110, .5);
  animation: pulse 2.6s ease-out infinite;
}

.nav__cta {
  font-size: 12px;
  letter-spacing: .16em;
  padding: 9px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: border-color .35s, color .35s, background .35s;
}

.nav__cta:hover {
  border-color: var(--brass-dim);
  color: var(--brass-bright);
  background: var(--hover-tint);
}

.theme-toggle {
  position: relative;
  flex: none;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ivory-2);
  transition: border-color .35s, color .35s, background .35s, transform .45s var(--ease);
}

.theme-toggle::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 44px;
  height: 44px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
}

.theme-toggle:hover {
  border-color: var(--brass-dim);
  color: var(--brass-bright);
  background: var(--hover-tint);
}

.theme-toggle:active {
  transform: scale(.92);
}

.theme-toggle svg {
  grid-area: 1 / 1;
  display: block;
  width: 16px;
  height: 16px;
  transition: opacity .3s var(--ease), transform .45s var(--ease);
}

.theme-toggle .icon-moon {
  opacity: 1;
  transform: none;
}

.theme-toggle .icon-sun {
  opacity: 0;
  transform: rotate(-45deg) scale(.6);
}

:root[data-theme="dark"] .theme-toggle .icon-moon {
  opacity: 0;
  transform: rotate(45deg) scale(.6);
}

:root[data-theme="dark"] .theme-toggle .icon-sun {
  opacity: 1;
  transform: none;
}

.nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  position: relative;
}

.nav__toggle span {
  position: absolute;
  left: 9px;
  width: 22px;
  height: 1px;
  background: var(--ivory);
  transition: transform .4s var(--ease), top .4s var(--ease);
}

.nav__toggle span:first-child {
  top: 16px;
}

.nav__toggle span:last-child {
  top: 23px;
}

.menu-open .nav__toggle span:first-child {
  top: 20px;
  transform: rotate(45deg);
}

.menu-open .nav__toggle span:last-child {
  top: 20px;
  transform: rotate(-45deg);
}

.menu-open .nav__toggle {
  z-index: 2;
}

/* ---------- Mobile menu ---------- */
.mobile {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: none;
  flex-direction: column;
  justify-content: space-between;
  padding: calc(var(--nav-h) + 40px) var(--pad) 40px;
  background: var(--menu-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .45s var(--ease), visibility .45s;
}

.mobile.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile__nav a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding-block: 18px;
  border-bottom: 1px solid var(--line-soft);
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}

.mobile.is-open .mobile__nav a {
  opacity: 1;
  transform: none;
}

.mobile.is-open .mobile__nav a:nth-child(1) {
  transition-delay: .08s;
}

.mobile.is-open .mobile__nav a:nth-child(2) {
  transition-delay: .14s;
}

.mobile.is-open .mobile__nav a:nth-child(3) {
  transition-delay: .2s;
}

.mobile.is-open .mobile__nav a:nth-child(4) {
  transition-delay: .26s;
}

.mobile__nav span {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 8.5vw, 2.8rem);
  letter-spacing: .06em;
}

.mobile__nav em {
  font-family: var(--sans);
  font-style: normal;
  font-size: 10.5px;
  letter-spacing: .26em;
  color: var(--muted);
}

.mobile__foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 10.5px;
  letter-spacing: .22em;
  color: var(--muted-2);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: calc(100vh - var(--marquee-h));
  min-height: calc(100svh - var(--marquee-h));
  display: flex;
  overflow: hidden;
  padding-top: calc(var(--nav-h) + clamp(24px, 5vh, 64px));
  padding-bottom: clamp(24px, 3.6vh, 48px);
}

.hero__glow {
  position: absolute;
  inset: -30% -10% auto -10%;
  height: 95%;
  background:
    radial-gradient(46% 52% at 74% 40%, var(--glow-a), transparent 72%),
    radial-gradient(34% 34% at 16% 6%, var(--glow-b), transparent 70%);
  pointer-events: none;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 12.5% 100%;
  opacity: .55;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 26%, #000 68%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 26%, #000 68%, transparent);
  pointer-events: none;
}

.hero__spot {
  position: absolute;
  inset: 0;
  background: radial-gradient(360px 360px at var(--mx, 62%) var(--my, 38%), var(--spot), transparent 68%);
  pointer-events: none;
}

.hero__rail {
  position: absolute;
  left: max(14px, 1.8vw);
  top: 50%;
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  font-size: 9px;
  letter-spacing: .38em;
  color: var(--rail);
  pointer-events: none;
}

.hero__wrap {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.hero__top {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.4vw, 32px);
}

/* 与下方各段落的分节线呼应，收住眉标右侧的空白 */
.hero__top::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 10.5px;
  letter-spacing: .24em;
  color: var(--muted);
}

.eyebrow i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--brass);
  animation: pulse 3s ease-out infinite;
}

.eyebrow--r {
  color: var(--muted);
  transition: color .35s;
}
.eyebrow--r:hover {
  color: var(--brass-bright);
}

.hero__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) clamp(268px, 25vw, 320px);
  gap: clamp(36px, 5vw, 84px);
  align-items: center;
  align-content: center;
  flex: 1;
  padding-top: clamp(18px, 3vh, 32px);
}

.hero__lead {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
}

.hero__headline { min-width: 0; }

.hero__statement {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-top: clamp(26px, 4vh, 48px);
}

.hero__statement::before {
  content: "";
  width: clamp(28px, 3vw, 44px);
  height: 1px;
  margin-bottom: clamp(16px, 2.2vh, 24px);
  background: var(--brass-dim);
}

.hero__title {
  display: flex;
  align-items: baseline;
  margin-left: -.035em;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(7rem, 23.5vw, 24rem);
  line-height: .82;
  letter-spacing: -.03em;
  white-space: nowrap;
}

.hero__char {
  display: inline-block;
  opacity: 0;
  transform: translateY(.22em) rotate(1.5deg);
  animation: charIn 1.25s var(--ease) forwards;
  animation-delay: var(--d, 0s);
}

.hero__char--ghost {
  color: transparent;
  -webkit-text-stroke: clamp(1.8px, .18vw, 3px) var(--ghost);
  margin-left: .015em;
}

.hero__sub {
  margin-top: clamp(48px, 4.4vw, 68px);
  font-size: 10.5px;
  letter-spacing: .32em;
  color: var(--muted);
}

.hero__brief {
  max-width: 440px;
  margin-top: clamp(20px, 3vh, 32px);
  text-align: left;
}

.hero__note {
  font-size: 15px;
  line-height: 1.8;
  letter-spacing: .02em;
  color: var(--muted);
}

.hero__tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}
.hero__tags li {
  padding: 5px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 10.5px;
  letter-spacing: .16em;
  color: var(--ivory-2);
}

.hero__aside {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  min-width: 0;
}

.hero__object {
  position: relative;
  width: 100%;
  margin-left: auto;
  perspective: 900px;
  container-type: inline-size;
  transform: translate3d(calc(var(--px, 0) * 1px), calc(var(--py, 0) * 1px), 0);
  transition: transform .7s var(--ease);
}

.hero__object::before {
  content: "";
  position: absolute;
  inset: -24%;
  background: radial-gradient(circle at 50% 50%, var(--glow-a), transparent 66%);
  filter: blur(8px);
  pointer-events: none;
  z-index: -1;
}

.object-float {
  animation: float 9s ease-in-out infinite;
}

.object-stack {
  position: relative;
  aspect-ratio: 4 / 5;
  transform-style: preserve-3d;
  transform: rotateX(calc(var(--py, 0) * -.45deg)) rotateY(calc(var(--px, 0) * .45deg));
  transition: transform .55s var(--ease);
}

.plate {
  position: absolute;
  inset: 0;
  border-radius: 3px;
  border: 1px solid var(--plate-edge);
  background: linear-gradient(155deg, var(--plate-hi), var(--plate-lo) 64%);
  box-shadow: 0 34px 60px -30px var(--plate-shadow);
}

.plate--back {
  transform: translate3d(-8%, -7%, -60px) rotate(-5deg);
  opacity: .9;
  transition: transform .6s var(--ease);
}

.plate--mid {
  transform: translate3d(-4%, -3.5%, -30px) rotate(-2.5deg);
  transition: transform .6s var(--ease);
}

.plate--front {
  display: flex;
  flex-direction: column;
  padding: clamp(14px, 6%, 24px);
  overflow: hidden;
  box-shadow:
    inset 0 1px 0 rgba(255, 246, 224, .08),
    inset 0 0 0 1px rgba(195, 162, 109, .10),
    0 38px 70px -32px var(--plate-shadow);
}

.plate--front::before {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid rgba(195, 162, 109, .22);
  pointer-events: none;
}

.plate--front::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(255, 244, 218, .10), transparent 42%);
  pointer-events: none;
}

.hero__object:hover .plate--back {
  transform: translate3d(-11%, -9.5%, -60px) rotate(-6deg);
}

.hero__object:hover .plate--mid {
  transform: translate3d(-5.5%, -4.8%, -30px) rotate(-3deg);
}

.plate__top,
.plate__foot {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 8px;
  letter-spacing: .24em;
  color: #bdb2a0;
  text-transform: uppercase;
  white-space: nowrap;
}

.plate__top {
  justify-content: space-between;
}

.plate__body {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(6px, 2vh, 12px);
}

.plate__body--list {
  align-items: stretch;
  gap: 0;
}

.plate__list {
  width: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(195, 162, 109, .18);
}

.plate__row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-block: clamp(7px, 3.2cqw, 12px);
  border-bottom: 1px solid rgba(195, 162, 109, .18);
}

.plate__no {
  flex: none;
  width: 16px;
  font-size: 8px;
  letter-spacing: .08em;
  color: #c2a878;
}

.plate__domain {
  font-family: var(--latin);
  font-size: clamp(19px, 12.5cqw, 31px);
  line-height: 1.1;
  letter-spacing: -.005em;
  color: #ece5d8;
  white-space: nowrap;
}

.plate__domain b {
  font-weight: 400;
  font-size: .38em;
  letter-spacing: .02em;
  color: #c2a878;
  margin-left: .08em;
}

.plate__avail {
  margin-left: auto;
  font-size: 7.5px;
  letter-spacing: .16em;
  color: #c2a878;
  opacity: .95;
  white-space: nowrap;
}

.plate__foot {
  justify-content: flex-start;
}

.plate__line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(195, 162, 109, .45), transparent);
}

.plate__seal {
  flex: none;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(190, 90, 72, .65);
  color: #cd7561;
  font-family: var(--serif);
  font-size: 10px;
  line-height: 1;
  letter-spacing: 0;
}

.plate__cap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  text-align: left;
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--cap-color);
}

.plate__cap::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--brass-dim);
}

.hero__lede {
  margin-top: 0;
  max-width: 20em;
  font-family: var(--serif);
  font-size: clamp(1.4rem, 2.3vw, 2rem);
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--ivory);
}

.hero__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: clamp(16px, 2.4vw, 28px);
  margin-top: clamp(20px, 3vh, 30px);
}

/* ---------- Marquee ---------- */
.marquee {
  overflow: hidden;
  padding-block: 15px;
  background: var(--marquee-bg);
  border-block: 1px solid var(--line-soft);
}

.marquee__track {
  display: flex;
  align-items: center;
  gap: 0;
  width: max-content;
  animation: marquee 52s linear infinite;
  will-change: transform;
}

/* 用 margin 代替 gap：两段内容各自带尾部间隔，-50% 位移才能严丝合缝 */
.marquee__track > * {
  margin-right: clamp(28px, 3.6vw, 58px);
}

.marquee__track span {
  font-family: var(--serif);
  font-size: 12.5px;
  letter-spacing: .3em;
  color: var(--muted);
  white-space: nowrap;
}

.marquee__track b {
  color: var(--brass);
  font-weight: 400;
  font-size: 12px;
}

/* ---------- Section head ---------- */
.sec-head {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: clamp(40px, 6vw, 78px);
}

.sec-head__no {
  font-family: var(--latin);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--brass);
}

.sec-head__label {
  font-size: 10.5px;
  letter-spacing: .28em;
  color: var(--muted);
  text-transform: uppercase;
  white-space: nowrap;
}

.sec-head__rule {
  flex: 1;
  height: 1px;
  background: var(--line);
}

/* ---------- Ethos ---------- */
.ethos__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: end;
}

.ethos__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.85rem, 3.9vw, 3.7rem);
  line-height: 1.4;
  letter-spacing: .01em;
}

.ethos__title em {
  font-style: normal;
  color: var(--brass-bright);
}

.ethos__lede {
  font-size: 15px;
  line-height: 1.95;
  color: var(--muted);
  max-width: 380px;
  padding-bottom: 8px;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 56px);
  margin-top: clamp(52px, 8vw, 104px);
}

.principles li {
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.principles__no {
  font-family: var(--latin);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--brass);
}

.principles h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 19.5px;
  letter-spacing: .04em;
  margin: 12px 0 10px;
}

.principles p {
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- Domains ---------- */
.domains__head {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
  gap: clamp(28px, 5vw, 80px);
  align-items: end;
  margin-bottom: clamp(34px, 5vw, 60px);
}

.domains__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.7rem, 3.2vw, 2.9rem);
  line-height: 1.45;
  letter-spacing: .01em;
}

.domains__lede {
  justify-self: end;
  max-width: 380px;
  padding-bottom: 8px;
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--muted);
}

.domains__list {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.domain {
  position: relative;
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 190px 96px 20px;
  align-items: center;
  gap: clamp(16px, 2.6vw, 40px);
  padding-block: clamp(24px, 3.2vw, 40px);
  transition: background .6s var(--ease);
}

.domain::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, var(--brass), transparent 72%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .8s var(--ease);
}

.domain:hover {
  background: linear-gradient(90deg, var(--hover-tint), transparent 68%);
}

.domain:hover::after {
  transform: scaleX(1);
}

.domain__idx {
  font-family: var(--latin);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--brass);
}

.domain__name {
  display: inline-flex;
  align-items: baseline;
  font-family: var(--latin);
  font-weight: 400;
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  line-height: .95;
  letter-spacing: -.005em;
  color: var(--ivory);
  transition: color .45s, transform .55s var(--ease);
}

.domain__name b {
  font-weight: 400;
  font-size: .38em;
  letter-spacing: .02em;
  color: var(--brass);
  margin-left: .18em;
}

.domain:hover .domain__name {
  color: var(--brass-bright);
  transform: translateX(8px);
}

.domain__meta {
  font-size: 10.5px;
  letter-spacing: .18em;
  color: var(--muted);
  text-transform: uppercase;
  white-space: nowrap;
}

.domain__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--ivory-2);
  white-space: nowrap;
}

.domain__status i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #68a06e;
  animation: pulse 2.8s ease-out infinite;
}

.domain__action {
  justify-self: end;
  font-size: 16px;
  color: var(--muted);
  transition: color .4s, transform .4s var(--ease);
}

.domain:hover .domain__action {
  color: var(--brass-bright);
  transform: translate(3px, -3px);
}

.domains__note {
  margin-top: clamp(20px, 3vw, 30px);
  max-width: 680px;
  font-size: 13.5px;
  line-height: 1.9;
  letter-spacing: .04em;
  color: var(--muted-2);
}

/* ---------- Craft ---------- */
.craft__grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: clamp(40px, 7vw, 120px);
  align-items: start;
}

.craft__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.75rem, 3.3vw, 3rem);
  line-height: 1.5;
  letter-spacing: .02em;
}

.craft__lede {
  max-width: 360px;
  margin-top: 26px;
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--muted);
}

.craft__list {
  border-top: 1px solid var(--line);
}

.craft__item {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 18px;
  padding-block: clamp(22px, 2.8vw, 34px);
  border-bottom: 1px solid var(--line);
  transition: background .5s var(--ease), padding-left .5s var(--ease);
}

.craft__item:hover {
  background: linear-gradient(90deg, var(--hover-tint), transparent 70%);
  padding-left: 10px;
}

.craft__no {
  font-family: var(--latin);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--brass);
  padding-top: 5px;
}

.craft__item h3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 19px;
  letter-spacing: .08em;
}

.craft__item p {
  margin-top: 8px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- Contact ---------- */
.contact {
  overflow: hidden;
  border-top: 1px solid var(--line);
  padding-block: clamp(96px, 13vw, 190px);
}

.contact__glow {
  position: absolute;
  inset: auto -15% -55% -15%;
  height: 120%;
  background: radial-gradient(46% 52% at 52% 100%, var(--glow-a), transparent 70%);
  pointer-events: none;
}

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

.contact__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2rem, 5vw, 4.6rem);
  line-height: 1.34;
  letter-spacing: .01em;
  max-width: 18em;
}

.contact__title em {
  font-style: normal;
  color: var(--brass-bright);
}

.contact__lede {
  margin-top: 28px;
  max-width: 520px;
  font-size: 15px;
  line-height: 1.95;
  color: var(--muted);
}

.contact__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: clamp(36px, 5vw, 52px);
}

.contact__seal {
  position: absolute;
  right: clamp(0px, 2vw, 30px);
  top: clamp(10px, 6vw, 70px);
  width: 96px;
  height: 96px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  border: 1.5px solid var(--seal-line);
  color: var(--seal-color);
  font-family: var(--serif);
  font-size: 23px;
  line-height: 1.05;
  transform: rotate(-7deg);
  box-shadow: inset 0 0 0 4px var(--ink), inset 0 0 0 5px rgba(180, 64, 47, .35);
  opacity: .92;
  pointer-events: none;
}

.contact__seal em {
  font-family: var(--sans);
  font-style: normal;
  font-size: 7px;
  letter-spacing: .3em;
  margin-top: 4px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 15px 28px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: .14em;
  white-space: nowrap;
  transition: transform .4s var(--ease), box-shadow .4s, background .4s, border-color .4s, color .4s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--brass {
  background: linear-gradient(120deg, #ecd7ab, #c8a469 58%, #ab854c);
  color: #171208;
  box-shadow: inset 0 0 0 1px rgba(109, 79, 34, .18), 0 10px 30px -14px rgba(109, 79, 34, .38);
}

.btn--brass:hover {
  box-shadow: inset 0 0 0 1px rgba(109, 79, 34, .18), 0 16px 38px -14px rgba(109, 79, 34, .5);
}

.btn--brass b {
  font-family: var(--latin);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: .1em;
  padding-left: 14px;
  border-left: 1px solid rgba(20, 15, 6, .28);
}

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

.btn--ghost:hover {
  border-color: var(--brass-dim);
  color: var(--brass-bright);
  background: var(--hover-tint);
}

.btn--ghost span {
  font-size: 13px;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--ivory-2);
  transition: color .35s, border-color .35s, gap .35s var(--ease);
}

.link-arrow:hover {
  color: var(--brass-bright);
  border-color: var(--brass-dim);
  gap: 16px;
}

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding-top: clamp(48px, 6vw, 80px);
  padding-bottom: 26px;
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) .55fr .75fr .8fr;
  gap: clamp(28px, 4vw, 60px);
}

.footer__brand p {
  margin-top: 26px;
  max-width: 320px;
  font-size: 13.5px;
  line-height: 1.95;
  color: var(--muted);
  letter-spacing: .04em;
}

.footer__col h4 {
  margin: 0 0 18px;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: .28em;
  color: var(--muted-2);
  text-transform: uppercase;
}

.footer__col a,
.footer__col span {
  display: block;
  margin-bottom: 11px;
  font-size: 13.5px;
  color: var(--ivory-2);
  transition: color .35s;
}

.footer__col a:hover {
  color: var(--brass-bright);
}

.footer__col--meta a {
  color: var(--muted);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: clamp(40px, 5vw, 64px);
  padding-top: 22px;
  border-top: 1px solid var(--line-soft);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--muted-2);
}

.footer__top {
  transition: color .35s;
}

.footer__top:hover {
  color: var(--brass-bright);
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  z-index: 220;
  padding: 12px 22px;
  border: 1px solid var(--brass-dim);
  background: var(--toast-bg);
  backdrop-filter: blur(10px);
  border-radius: 999px;
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--brass-bright);
  transform: translate(-50%, 16px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .4s var(--ease), transform .4s var(--ease), visibility .4s;
}

.toast.is-on {
  opacity: 1;
  transform: translate(-50%, 0);
  visibility: visible;
}

/* ---------- Reveal ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .95s var(--ease), transform .95s var(--ease);
  transition-delay: var(--delay, 0s);
}

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

/* Load-in */
[data-load] {
  opacity: 0;
  animation: rise .95s var(--ease) forwards;
  animation-delay: var(--d, 0s);
}

/* ---------- Keyframes ---------- */
@keyframes charIn {
  from {
    opacity: 0;
    transform: translateY(.22em) rotate(1.5deg);
  }

  to {
    opacity: 1;
    transform: translateY(0) rotate(0);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(22px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-9px);
  }
}

@keyframes marquee {
  to {
    transform: translateX(var(--marquee-shift, -50%));
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(134, 100, 46, .35);
  }

  70% {
    box-shadow: 0 0 0 7px rgba(134, 100, 46, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(134, 100, 46, 0);
  }
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-height: 820px) and (min-width: 901px) {
  .hero {
    padding-top: calc(var(--nav-h) + 14px);
    padding-bottom: 22px;
  }

  .hero__body {
    grid-template-columns: minmax(0, 1fr) clamp(250px, 23vw, 300px);
    gap: clamp(32px, 4vw, 64px);
    padding-top: 14px;
  }

  /* 矮屏下收一档字号，保证跑马灯完整留在首屏 */
  .hero__title {
    font-size: clamp(6rem, 21vw, 20rem);
  }

  .hero__sub {
    margin-top: clamp(44px, 4vw, 54px);
  }

  .hero__statement {
    margin-top: 20px;
  }

  .hero__brief {
    margin-top: 16px;
  }

  .plate__avail {
    display: none;
  }

  .plate__cap {
    margin-top: 12px;
  }

  .hero__lede {
    line-height: 1.9;
  }
}

@media (max-width: 1180px) {
  .hero__rail {
    display: none;
  }
}

@media (max-width: 900px) {
  :root {
    --nav-h: 66px;
  }

  .nav__links,
  .status,
  .nav__cta {
    display: none;
  }

  .nav__toggle {
    display: block;
  }

  .mobile {
    display: flex;
  }

  /* 单行导航：品牌与操作区分列两端，避免品牌名被压成多行 */
  .nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
  }

  .brand {
    min-width: 0;
  }

  .brand__name {
    white-space: nowrap;
  }

  .hero {
    padding-top: calc(var(--nav-h) + 26px);
  }

  .hero__body {
    grid-template-columns: 1fr;
    gap: 0;
    align-items: start;
    padding-top: clamp(22px, 4.5vh, 44px);
  }

  .hero__brief {
    max-width: 100%;
    margin-top: 24px;
    text-align: left;
  }

  .hero__title {
    font-size: clamp(5rem, 24vw, 11rem);
  }

  .hero__sub {
    margin-top: 36px;
    font-size: 10.5px;
    letter-spacing: .26em;
  }

  .hero__lede {
    margin-top: 0;
    font-size: 1.2rem;
    line-height: 1.7;
  }

  .hero__aside {
    align-items: flex-start;
    margin-top: clamp(28px, 4vh, 40px);
  }

  .hero__object {
    width: min(52vw, 240px);
    margin: 0;
  }

  .ethos__grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .ethos__lede {
    max-width: 100%;
    padding-bottom: 0;
  }

  .principles {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .principles li {
    padding-block: 22px 4px;
  }

  .principles li+li {
    margin-top: 10px;
  }

  .domains__head {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .domains__lede {
    justify-self: start;
    padding-bottom: 0;
  }

  .domain {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "name action"
      "meta status";
    row-gap: 12px;
    column-gap: 16px;
    padding-block: 24px;
  }

  .domain__idx {
    display: none;
  }

  .domain__name {
    grid-area: name;
    font-size: clamp(2rem, 8.6vw, 2.8rem);
  }

  .domain__meta {
    grid-area: meta;
  }

  .domain__status {
    grid-area: status;
    justify-self: end;
  }

  .domain__action {
    grid-area: action;
  }

  .domain:hover .domain__name {
    transform: none;
  }

  .craft__grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .craft__lede {
    max-width: 100%;
  }

  .contact__seal {
    position: static;
    margin-top: 44px;
    transform: rotate(-4deg);
  }

  .footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 40px;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}

/* 竖屏平板：保持左右两栏，卡片与文字并置，避免整页偏左 */
@media (min-width: 601px) and (max-width: 900px) {
  .hero__body {
    grid-template-columns: minmax(0, 1fr) clamp(190px, 30vw, 230px);
    gap: 28px;
    align-items: center;
  }

  .hero__aside {
    align-items: flex-end;
    margin-top: 0;
  }

  .hero__object {
    width: 100%;
  }
}

@media (max-width: 600px) {
  :root {
    --marquee-h: 41px;
  }

  .eyebrow--r {
    display: none;
  }

  .hero {
    padding-top: calc(var(--nav-h) + 16px);
    padding-bottom: 20px;
  }

  .hero__body {
    padding-top: 20px;
  }

  .marquee {
    padding-block: 9px;
  }

  .marquee__track span {
    font-size: 11.5px;
  }

  .marquee__track b {
    font-size: 11px;
  }

  .hero__title {
    font-size: clamp(4.4rem, 25vw, 8rem);
  }

  .hero__sub {
    margin-top: 28px;
  }

  .hero__tags {
    gap: 6px;
    margin-top: 16px;
  }

  .hero__tags li {
    padding: 4px 10px;
    font-size: 10.5px;
  }

  .hero__aside {
    margin-top: 26px;
  }

  .hero__object {
    width: min(46vw, 190px);
    margin: 0;
  }

  .plate--back {
    transform: translate3d(-3.5%, -4%, -60px) rotate(-3.5deg);
  }

  .plate--mid {
    transform: translate3d(-2.5%, -2.5%, -30px) rotate(-2deg);
  }

  .plate__cap {
    font-size: 9px;
    margin-top: 8px;
  }

  .plate__avail {
    display: none;
  }

  .hero__actions {
    gap: 22px;
    margin-top: 22px;
  }

  .sec-head {
    gap: 12px;
    margin-bottom: 34px;
  }

  .sec-head__label {
    font-size: 10px;
    letter-spacing: .24em;
  }

  .domain__meta {
    font-size: 10px;
    letter-spacing: .14em;
  }

  .domain__status {
    font-size: 10.5px;
    letter-spacing: .12em;
  }

  .contact__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .contact__actions .btn {
    justify-content: center;
  }

  .btn--brass b {
    margin-left: auto;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer__brand {
    grid-column: 1 / -1;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

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

  [data-load] {
    opacity: 1;
  }

  .hero__char {
    opacity: 1;
    transform: none;
  }
}