/* ARTIFACT — 校准版
   Art Blocks：白墙画廊、作品优先、纯无衬线、大留白
   Manifold：实心橙色信号块、黑白橙色块分区、黄色/深色 CTA */

:root {
  --paper: #F5F4F1;
  --paper-2: #FFFFFF;
  --paper-3: #EBE9E4;
  --ink: #111111;
  --ink-2: #2A2A2A;
  --mute: #6B6B6B;
  --line: rgba(17, 17, 17, 0.1);
  --line-strong: rgba(17, 17, 17, 0.22);
  --signal: #FF5C00;          /* 贴近 Manifold 橙 */
  --signal-ink: #111111;
  --signal-cta: #FFE600;      /* Manifold 黄 CTA */
  --dark: #0B0B0C;

  --sans: "Inter", "Space Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --shell: 1240px;
  --pad: clamp(20px, 4vw, 48px);
  --radius: 2px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, canvas { display: block; max-width: 100%; }
h1, h2, h3 { margin: 0; font-family: var(--display); font-weight: 600; line-height: 1.05; letter-spacing: -0.03em; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
.shell { width: min(100% - var(--pad) * 2, var(--shell)); margin-inline: auto; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- 文字块（Art Blocks：全大写小标签） ---------- */

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
  font-weight: 500;
}
.eyebrow--ink { color: rgba(17, 17, 17, 0.65); }

.section-title {
  font-size: clamp(28px, 4.2vw, 48px);
  margin-top: 12px;
  font-weight: 600;
}
.section-title--wide { max-width: 18ch; }
.section-title--ink { color: var(--ink); }

.section-lead {
  color: var(--mute);
  font-size: clamp(15px, 1.3vw, 17px);
  max-width: 48ch;
  line-height: 1.6;
}
.section-lead--ink { color: rgba(17, 17, 17, 0.72); }

.section-head {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(24px, 5vw, 64px);
  align-items: end;
  padding-bottom: clamp(28px, 4vw, 48px);
}

html[lang^="zh"] .eyebrow, html[lang="ja"] .eyebrow, html[lang="ko"] .eyebrow,
html[lang^="zh"] .hero__eyebrow, html[lang="ja"] .hero__eyebrow, html[lang="ko"] .hero__eyebrow {
  letter-spacing: 0.06em;
}

/* ---------- 按钮 ---------- */

.btn {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  --btn-line: var(--line-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  border: 1px solid var(--btn-line);
  border-radius: var(--radius);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease),
              color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; }

.btn--signal { --btn-bg: var(--signal); --btn-fg: #fff; --btn-line: var(--signal); }
.btn--signal:hover { filter: brightness(1.05); }

.btn--ink { --btn-bg: var(--ink); --btn-fg: #fff; --btn-line: var(--ink); }
.btn--ink:hover { --btn-bg: #2a2a2a; --btn-line: #2a2a2a; }

.btn--ghost { --btn-bg: transparent; --btn-fg: var(--ink); }
.btn--ghost:hover { --btn-bg: rgba(17, 17, 17, 0.05); }

.btn--ghost-light { --btn-bg: transparent; --btn-fg: #fff; --btn-line: rgba(255,255,255,0.55); }
.btn--ghost-light:hover { --btn-bg: rgba(255,255,255,0.1); --btn-line: #fff; }

.btn--ghost-ink { --btn-fg: var(--ink); --btn-line: rgba(17, 17, 17, 0.35); }
.btn--ghost-ink:hover { --btn-bg: rgba(17, 17, 17, 0.06); --btn-line: var(--ink); }

.btn--yellow { --btn-bg: var(--signal-cta); --btn-fg: var(--ink); --btn-line: var(--signal-cta); }
.btn--yellow:hover { filter: brightness(1.03); }

.btn--sm { padding: 9px 14px; font-size: 12px; }
.btn--lg { padding: 15px 26px; font-size: 13px; }
.btn--block { width: 100%; }

.pill {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
}
.pill--ink { border-color: rgba(17, 17, 17, 0.3); color: var(--ink); }

/* ---------- 语言条 ---------- */

.locale-banner { position: relative; z-index: 60; background: var(--signal); color: #fff; font-size: 13px; }
.locale-banner__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 9px 0; }
.locale-banner__close { background: none; border: 0; color: inherit; font-size: 20px; line-height: 1; padding: 0 4px; }

/* ---------- 导航（Art Blocks：白底、全大写链接） ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 244, 241, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.nav.is-stuck { border-bottom-color: var(--line); background: rgba(245, 244, 241, 0.97); }
.nav__inner { display: flex; align-items: center; gap: clamp(16px, 4vw, 48px); height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); }
.brand__mark { width: 24px; height: 24px; }
.brand__name { font-family: var(--display); font-weight: 700; font-size: 15px; letter-spacing: 0.04em; }
.nav__links { display: flex; gap: clamp(16px, 2.6vw, 36px); margin-inline-start: auto; }
.nav__links a {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
  padding: 4px 0;
  transition: color 0.25s var(--ease);
}
.nav__links a:hover { color: var(--ink); }
.nav__actions { display: flex; align-items: center; gap: 12px; }

.lang-select {
  appearance: none;
  background: transparent;
  color: var(--mute);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 26px 8px 10px;
  font-size: 12px;
  font-family: var(--sans);
  cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--mute) 50%),
                    linear-gradient(135deg, var(--mute) 50%, transparent 50%);
  background-position: right 12px center, right 7px center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
.lang-select:hover { color: var(--ink); border-color: var(--line-strong); }
.lang-select option { background: var(--paper-2); color: var(--ink); }
[dir="rtl"] .lang-select { padding: 8px 10px 8px 26px; background-position: left 12px center, left 7px center; }

.nav__menu {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  padding: 0;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.nav__menu span { display: block; width: 16px; height: 1.5px; margin-inline: auto; background: var(--ink); transition: transform 0.3s var(--ease); }
.nav__menu[aria-expanded="true"] span:first-child { transform: translateY(3.25px) rotate(45deg); }
.nav__menu[aria-expanded="true"] span:last-child { transform: translateY(-3.25px) rotate(-45deg); }

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 12px var(--pad) 24px;
  border-top: 1px solid var(--line);
  background: var(--paper);
}
.mobile-nav a {
  padding: 13px 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--line);
}
.mobile-nav .btn { margin-top: 16px; }
.mobile-nav .lang { margin-top: 12px; }
.mobile-nav .lang-select { width: 100%; padding: 13px 26px 13px 12px; }

/* ---------- Hero（Art Blocks：全幅作品 + 左下角标题） ---------- */

.hero {
  position: relative;
  min-height: clamp(560px, 86vh, 860px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--dark);
  color: #fff;
}
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero__veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,11,12,0.15) 0%, rgba(11,11,12,0.15) 45%, rgba(11,11,12,0.78) 100%);
}
.hero__overlay {
  position: relative;
  display: grid;
  gap: 28px;
  padding: 0 0 clamp(28px, 4vw, 44px);
}
.hero__caption { max-width: 560px; }
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
}
.dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 0 rgba(255, 92, 0, 0.7);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  70% { box-shadow: 0 0 0 9px rgba(255, 92, 0, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 92, 0, 0); }
}
.hero__title { margin-top: 14px; }
.hero__work {
  display: block;
  font-size: clamp(40px, 7vw, 84px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.95;
}
.hero__by {
  display: block;
  margin-top: 10px;
  font-size: clamp(16px, 2vw, 22px);
  font-weight: 500;
  color: rgba(255,255,255,0.78);
  letter-spacing: -0.01em;
}
.hero__lead {
  margin-top: 16px;
  max-width: 44ch;
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  line-height: 1.55;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(12px, 3vw, 36px);
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.18);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.5);
}
.hero__meta em { font-style: normal; color: rgba(255,255,255,0.9); margin-inline-start: 8px; }

/* ---------- 活动跑马灯 ---------- */

.ticker {
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--paper-2);
  padding: 11px 0;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.ticker__track { display: flex; gap: 36px; width: max-content; animation: slide 46s linear infinite; }
.ticker:hover .ticker__track { animation-play-state: paused; }
@keyframes slide { to { transform: translateX(-50%); } }
.ticker__item {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 12px; color: var(--mute); white-space: nowrap;
}
.ticker__item b { color: var(--ink); font-weight: 500; }
.ticker__tag {
  font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 3px 7px; border-radius: 2px;
  background: rgba(255, 92, 0, 0.1); color: var(--signal);
}
.ticker__tag--x { background: rgba(17, 17, 17, 0.06); color: var(--ink-2); }

/* ---------- 发行 / 铸造（Art Blocks 系列页：左作品右信息） ---------- */

.drop { padding: clamp(48px, 8vw, 100px) 0; background: var(--paper); }
.drop__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}
.artframe {
  position: relative;
  background: var(--paper-2);
  padding: 18px;
  box-shadow: 0 12px 40px rgba(17, 17, 17, 0.06);
  border: 1px solid var(--line);
}
.artframe__canvas { width: 100%; aspect-ratio: 1 / 1; background: #0f0f12; }
.artframe__bar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding-top: 14px; font-family: var(--mono); font-size: 12px;
}
.artframe__token { color: var(--ink); letter-spacing: 0.04em; }
.artframe__reroll {
  background: none; border: 0; padding: 0; color: var(--mute);
  font-family: var(--mono); font-size: 12px;
  border-bottom: 1px solid var(--line-strong);
  transition: color 0.25s var(--ease);
}
.artframe__reroll:hover { color: var(--signal); }

.traits {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  list-style: none;
  margin: 1px 0 0; padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-top: 0;
}
.traits li { background: var(--paper-2); padding: 14px 16px; }
.traits__k {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--mute);
}
.traits__v { display: block; margin-top: 5px; font-size: 14px; color: var(--ink); }
.traits__pct { font-family: var(--mono); font-size: 11px; color: var(--signal); margin-inline-start: 6px; }

.mint {
  position: sticky;
  top: 88px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  padding: clamp(24px, 3vw, 32px);
  box-shadow: 0 8px 28px rgba(17, 17, 17, 0.04);
}
.mint__title { font-size: clamp(32px, 4vw, 44px); margin-top: 10px; font-weight: 700; }
.mint__by {
  display: flex; align-items: center; gap: 7px;
  margin-top: 8px; font-size: 14px; color: var(--mute);
}
.mint__by strong { color: var(--ink); font-weight: 600; }
.verified {
  display: inline-grid; place-items: center;
  width: 15px; height: 15px; border-radius: 50%;
  background: var(--signal); color: #fff; font-size: 9px;
}
.mint__lead { margin-top: 16px; color: var(--mute); font-size: 14px; line-height: 1.55; }

.mint__stats {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px;
  margin: 22px 0 0; padding: 0; background: var(--line); border: 1px solid var(--line);
}
.mint__stats > div { background: var(--paper-2); padding: 14px 16px; }
.mint__stats dt {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--mute);
}
.mint__stats dd { margin: 6px 0 0; font-size: 17px; font-weight: 600; }
.mint__stats dd span { font-size: 12px; color: var(--mute); font-weight: 400; }

.progress { margin-top: 22px; }
.progress__head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  font-family: var(--mono); font-size: 12px; color: var(--mute); margin-bottom: 10px;
}
.progress__head strong { color: var(--ink); font-size: 15px; }
.progress__time { color: var(--signal); }
.progress__bar { height: 3px; background: var(--paper-3); overflow: hidden; }
.progress__bar span { display: block; height: 100%; background: var(--signal); transition: width 0.6s var(--ease); }

.mint__row { display: flex; gap: 12px; margin-top: 22px; }
.qty {
  display: flex; align-items: center;
  border: 1px solid var(--line-strong); border-radius: var(--radius); background: var(--paper);
}
.qty__btn {
  width: 42px; height: 100%; min-height: 46px;
  background: none; border: 0; font-size: 18px; color: var(--mute);
  transition: color 0.2s var(--ease);
}
.qty__btn:hover { color: var(--signal); }
.qty__val { min-width: 26px; text-align: center; font-family: var(--mono); font-size: 15px; }
.mint__row .btn { flex: 1; }
.mint__note { margin-top: 12px; font-size: 12px; color: var(--mute); }
.mint__note.is-live { color: var(--signal); }

/* ---------- 画廊（Art Blocks：浅底卡片 + 轻阴影） ---------- */

.gallery { padding: clamp(48px, 8vw, 100px) 0; border-top: 1px solid var(--line); background: var(--paper-3); }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: clamp(16px, 2vw, 24px);
}
.card {
  position: relative;
  border: 1px solid var(--line);
  background: var(--paper-2);
  padding: 10px;
  text-align: start;
  box-shadow: 0 4px 18px rgba(17, 17, 17, 0.04);
  transition: border-color 0.3s var(--ease), transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
  animation: fadeUp 0.6s var(--ease) both;
}
.card:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(17, 17, 17, 0.08);
}
.card canvas { width: 100%; aspect-ratio: 1 / 1; background: #0f0f12; }
.card__foot {
  display: flex; align-items: baseline; justify-content: space-between; gap: 10px;
  padding: 12px 4px 4px; font-family: var(--mono); font-size: 12px;
}
.card__id { color: var(--ink); letter-spacing: 0.04em; font-weight: 500; }
.card__price { color: var(--mute); }
.card__rank {
  position: absolute; top: 18px; inset-inline-start: 18px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 4px 8px; background: rgba(245, 244, 241, 0.92); border: 1px solid var(--line); color: var(--ink);
  opacity: 0; transform: translateY(-4px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.card:hover .card__rank { opacity: 1; transform: translateY(0); }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}
.gallery__more { display: flex; justify-content: center; margin-top: clamp(28px, 4vw, 44px); }

/* ---------- 溯源 ---------- */

.prov {
  padding: clamp(48px, 8vw, 100px) 0;
  border-top: 1px solid var(--line);
  background: var(--paper-2);
}
.prov__grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 6vw, 80px); align-items: start;
}
.prov__points { list-style: none; margin: 28px 0 0; padding: 0; display: grid; gap: 18px; }
.prov__points li { padding-inline-start: 16px; border-inline-start: 2px solid var(--signal); }
.prov__points strong { display: block; font-size: 15px; font-weight: 600; }
.prov__points span { display: block; margin-top: 4px; font-size: 14px; color: var(--mute); }

.timeline { list-style: none; margin: 0; padding: 0; position: relative; }
.timeline::before {
  content: ""; position: absolute; inset-inline-start: 5px; top: 8px; bottom: 8px;
  width: 1px; background: var(--line);
}
.tl { position: relative; padding: 0 0 28px 30px; }
[dir="rtl"] .tl { padding: 0 30px 28px 0; }
.tl:last-child { padding-bottom: 0; }
.tl__dot {
  position: absolute; inset-inline-start: 0; top: 6px;
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--paper-2); border: 1px solid var(--line-strong);
}
.tl.is-now .tl__dot { background: var(--signal); border-color: var(--signal); }
.tl__label { font-size: 15px; font-weight: 600; }
.tl.is-now .tl__label { color: var(--signal); }
.tl__meta { font-family: var(--mono); font-size: 11px; color: var(--mute); margin-top: 4px; }
.tl__desc { margin-top: 8px; font-size: 14px; color: var(--mute); max-width: 42ch; }

/* ---------- 创作者（Manifold：实心橙 + 黑卡） ---------- */

.creators {
  padding: clamp(56px, 9vw, 110px) 0;
  background: var(--signal);
  color: var(--ink);
}
.creators__grid {
  display: grid; grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(32px, 5vw, 72px); align-items: center;
}
.creators__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.contract-card {
  background: var(--dark);
  color: #F5F4F1;
  padding: clamp(22px, 3vw, 30px);
  border-radius: 8px;
  box-shadow: 0 24px 60px rgba(17, 17, 17, 0.28);
}
.contract-card__head {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: rgba(245, 244, 241, 0.55);
  padding-bottom: 16px; border-bottom: 1px solid rgba(245, 244, 241, 0.12);
}
.contract-card__head .pill { border-color: rgba(245, 244, 241, 0.28); color: #F5F4F1; }
.contract-card__fields { margin: 0 0 22px; padding: 0; }
.contract-card__fields > div {
  display: flex; align-items: baseline; justify-content: space-between; gap: 16px;
  padding: 12px 0; border-bottom: 1px solid rgba(245, 244, 241, 0.1);
}
.contract-card__fields dt {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase; color: rgba(245, 244, 241, 0.45);
}
.contract-card__fields dd { margin: 0; font-size: 14px; text-align: end; }
.contract-card__fields dd span { color: rgba(245, 244, 241, 0.45); }
.contract-card .btn--ink { --btn-bg: #fff; --btn-fg: var(--ink); --btn-line: #fff; }
.contract-card .btn--ink:hover { --btn-bg: var(--signal-cta); --btn-line: var(--signal-cta); }
.contract-card__note { margin-top: 12px; font-size: 12px; color: rgba(245, 244, 241, 0.45); text-align: center; }
.contract-card__note.is-live { color: var(--signal); }

/* ---------- 保障条 ---------- */

.assure { border-block: 1px solid var(--line); background: var(--dark); color: #F5F4F1; }
.assure__grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: rgba(245, 244, 241, 0.1); border-inline: 1px solid rgba(245, 244, 241, 0.1);
}
.assure__grid article { background: var(--dark); padding: clamp(22px, 3vw, 32px) clamp(16px, 2vw, 24px); }
.assure h3 { font-size: 14px; font-weight: 600; letter-spacing: 0.02em; }
.assure p { margin-top: 8px; font-size: 13px; color: rgba(245, 244, 241, 0.55); line-height: 1.5; }

/* ---------- 流程 ---------- */

.how { padding: clamp(48px, 8vw, 100px) 0; background: var(--paper); }
.steps {
  list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  margin: clamp(28px, 4vw, 48px) 0 0; padding: 0;
  background: var(--line); border: 1px solid var(--line);
}
.step { background: var(--paper-2); padding: clamp(24px, 3vw, 36px); }
.step__num {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; color: var(--signal); font-weight: 500;
}
.step h3 { margin-top: 16px; font-size: clamp(18px, 2vw, 22px); font-weight: 600; }
.step p { margin-top: 10px; font-size: 14px; color: var(--mute); }

/* ---------- FAQ ---------- */

.faq { padding: clamp(48px, 8vw, 100px) 0; border-top: 1px solid var(--line); background: var(--paper-2); }
.faq__grid {
  display: grid; grid-template-columns: 0.75fr 1.25fr;
  gap: clamp(28px, 5vw, 72px); align-items: start;
}
.qa { border-bottom: 1px solid var(--line); }
.qa summary {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 20px 0; font-size: clamp(15px, 1.5vw, 18px); font-weight: 500;
  cursor: pointer; list-style: none; transition: color 0.25s var(--ease);
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after {
  content: "+"; font-family: var(--mono); font-size: 20px; color: var(--signal);
  transition: transform 0.3s var(--ease);
}
.qa[open] summary::after { transform: rotate(45deg); }
.qa summary:hover { color: var(--signal); }
.qa p { padding: 0 0 22px; max-width: 60ch; color: var(--mute); font-size: 15px; }

/* ---------- 收束 CTA ---------- */

.cta-band {
  padding: clamp(64px, 10vw, 120px) 0;
  border-top: 1px solid var(--line);
  background: var(--paper-3);
  text-align: center;
}
.cta-band__inner { display: grid; justify-items: center; gap: 14px; }
.cta-band__brand {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.28em; color: var(--mute);
}
.cta-band h2 { font-size: clamp(32px, 5.5vw, 64px); font-weight: 700; letter-spacing: -0.035em; }
.cta-band p { color: var(--mute); max-width: 42ch; }
.cta-band .btn { margin-top: 12px; }

/* ---------- 页脚 ---------- */

.footer { border-top: 1px solid var(--line); padding: clamp(40px, 6vw, 72px) 0 32px; background: var(--paper); }
.footer__inner { display: grid; grid-template-columns: 1.2fr 1.8fr; gap: clamp(24px, 5vw, 64px); }
.footer__brand p { margin-top: 10px; font-size: 14px; color: var(--mute); max-width: 34ch; }
.footer__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer__cols h3 {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--mute); font-weight: 500; margin-bottom: 12px;
}
.footer__cols a {
  display: block; padding: 5px 0; font-size: 14px; color: var(--mute);
  transition: color 0.2s var(--ease);
}
.footer__cols a:hover { color: var(--signal); }
.footer__lang { margin-top: 2px; }
.footer__copy {
  grid-column: 1 / -1; margin-top: clamp(24px, 4vw, 40px); padding-top: 20px;
  border-top: 1px solid var(--line);
  font-family: var(--mono); font-size: 11px; color: var(--mute);
}

/* ---------- 弹层 ---------- */

.modal {
  border: 0; padding: 0; background: transparent; color: var(--ink);
  max-width: min(560px, calc(100vw - 32px)); width: 100%;
}
.modal--token { max-width: min(940px, calc(100vw - 32px)); }
.modal::backdrop { background: rgba(17, 17, 17, 0.55); backdrop-filter: blur(6px); }
.modal[open] { animation: modalIn 0.3s var(--ease); }
@keyframes modalIn {
  from { opacity: 0; transform: translateY(10px) scale(0.99); }
  to { opacity: 1; transform: none; }
}
.modal__panel {
  position: relative; background: var(--paper-2);
  border: 1px solid var(--line-strong); border-radius: 4px;
  padding: clamp(22px, 3vw, 30px);
  box-shadow: 0 24px 60px rgba(17, 17, 17, 0.18);
}
.modal__head { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.modal__head h2 { font-size: 26px; font-weight: 700; }
.modal__close {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  width: 34px; height: 34px; font-size: 20px; line-height: 1; color: var(--mute);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.modal__close:hover { color: var(--ink); border-color: var(--line-strong); }
.modal__lead { margin-top: 10px; color: var(--mute); font-size: 14px; }
.modal__list { list-style: none; margin: 20px 0 0; padding: 0; display: grid; gap: 8px; }
.modal__wallet {
  width: 100%; text-align: start; padding: 15px 16px;
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  font-size: 15px; font-weight: 500;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.modal__wallet:hover { border-color: var(--signal); transform: translateX(3px); }
[dir="rtl"] .modal__wallet:hover { transform: translateX(-3px); }
.modal__safe {
  margin-top: 18px; font-size: 12px; color: var(--mute);
  padding-top: 14px; border-top: 1px solid var(--line);
}

.modal--token .modal__panel { max-height: min(88vh, 920px); overflow-y: auto; }
.token-panel { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(18px, 3vw, 32px); }
.token-panel > .modal__close {
  position: absolute; top: 14px; inset-inline-end: 14px; z-index: 2;
  background: rgba(245, 244, 241, 0.92); backdrop-filter: blur(6px);
}
.token-panel__art canvas {
  width: 100%; aspect-ratio: 1 / 1; background: #0f0f12; border: 1px solid var(--line);
}
.token-panel__info h2 { font-size: clamp(26px, 3.2vw, 36px); font-weight: 700; margin-top: 8px; }
.token-panel__meta { margin: 20px 0 0; padding: 0; }
.token-panel__meta > div {
  display: flex; align-items: baseline; justify-content: space-between; gap: 16px;
  padding: 10px 0; border-bottom: 1px solid var(--line);
}
.token-panel__meta dt {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--mute);
}
.token-panel__meta dd { margin: 0; font-size: 14px; text-align: end; }
.token-panel__history {
  list-style: none; margin: 20px 0 0; padding: 0; display: grid; gap: 10px;
}
.token-panel__history li {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  font-family: var(--mono); font-size: 11px; color: var(--mute);
}
.token-panel__history b { color: var(--ink); font-weight: 500; }

/* ---------- Toast ---------- */

.toast {
  position: fixed; inset-block-end: 24px; inset-inline-start: 50%;
  transform: translateX(-50%); z-index: 80;
  background: var(--ink); color: #fff; padding: 13px 20px;
  border-radius: var(--radius); font-size: 14px;
  box-shadow: 0 16px 36px rgba(17, 17, 17, 0.25);
  animation: toastIn 0.3s var(--ease);
}
@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 10px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* ---------- 滚动揭示 ---------- */

.reveal {
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- Hero 轮播控件 ---------- */

.hero__foot {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(16px, 4vw, 48px);
}
.hero__foot .hero__meta { flex: 1; }
.hero__dots { display: flex; gap: 8px; padding-bottom: 4px; }
.hero__dot {
  width: 38px; height: 4px; padding: 0;
  border: 0; border-radius: 999px;
  background: rgba(255, 255, 255, 0.4);
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}
.hero__dot:hover { background: rgba(255, 255, 255, 0.6); }
.hero__dot[aria-selected="true"] { background: var(--signal); transform: scaleY(1.6); }
.hero__dot:focus-visible { outline: 2px solid var(--signal); outline-offset: 4px; }

.hero__work, .hero__by, .hero__eyebrow { transition: opacity 0.35s var(--ease); }
.hero.is-swapping .hero__work,
.hero.is-swapping .hero__by,
.hero.is-swapping .hero__eyebrow { opacity: 0; }

/* ---------- 画廊筛选（Art Blocks：按美学浏览） ---------- */

.filters {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: clamp(20px, 3vw, 28px);
}
.filters__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
}
.filters__hint {
  display: block;
  margin-top: 6px;
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--mute);
  max-width: 42ch;
}
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 8px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--mute);
  transition: color 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
}
.chip:hover { color: var(--ink); border-color: var(--ink); }
.chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }

/* ---------- 更多发行 ---------- */

.releases { padding: clamp(48px, 8vw, 100px) 0; border-top: 1px solid var(--line); background: var(--paper); }
.rel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: clamp(18px, 2.4vw, 28px);
}
.rel {
  display: block;
  width: 100%;
  text-align: start;
  padding: 0;
  border: 0;
  background: none;
  transition: transform 0.4s var(--ease);
}
.rel:hover { transform: translateY(-4px); }
.rel__frame { display: block; position: relative; overflow: hidden; background: var(--paper-3); }
.rel canvas { width: 100%; aspect-ratio: 1 / 1; background: #0f0f12; }
.rel__badge {
  position: absolute; top: 10px; inset-inline-start: 10px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 5px 9px; background: rgba(245, 244, 241, 0.94); color: var(--ink);
}
.rel__name { display: block; margin-top: 14px; font-size: 18px; font-weight: 600; letter-spacing: -0.02em; }
.rel__by { display: block; margin-top: 3px; font-size: 14px; color: var(--mute); }
.rel__foot {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--mute);
}
.rel__status { display: inline-flex; align-items: center; gap: 7px; }
.rel__status .dot { width: 5px; height: 5px; animation: none; box-shadow: none; }
.rel__status--live { color: var(--signal); }
.rel__status--soon .dot { background: var(--ink); }
.rel__status--done { color: var(--mute); }
.rel__status--done .dot { background: var(--line-strong); }

/* ---------- 艺术家索引（Art Blocks：肖像 + 作品样本 分栏卡） ---------- */

.artists { padding: clamp(48px, 8vw, 100px) 0; border-top: 1px solid var(--line); background: var(--paper-3); }
.artist-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2vw, 24px);
}
.artist {
  display: block;
  width: 100%;
  padding: 0;
  text-align: start;
  background: var(--paper-2);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), transform 0.35s var(--ease), box-shadow 0.4s var(--ease);
}
.artist:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(17, 17, 17, 0.08);
}
.artist__tiles { display: grid; grid-template-columns: 1fr 1fr; }
.artist__tiles canvas,
.artist__tiles img {
  display: block;
  width: 100%; height: auto; aspect-ratio: 1 / 1;
  background: #0f0f12;
}
.artist__portrait {
  object-fit: cover;
  border-inline-end: 1px solid var(--line);
  filter: saturate(0.9);
}
.artist__meta {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  padding: 14px 16px;
}
.artist__name { font-size: 15px; font-weight: 600; letter-spacing: -0.01em; }
.artist__works { font-family: var(--mono); font-size: 11px; color: var(--mute); white-space: nowrap; }

/* ---------- 创作者工具（Manifold 黄色块） ---------- */

.tools { padding: clamp(56px, 9vw, 110px) 0; background: var(--signal-cta); color: var(--ink); }
.tool-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  margin-top: clamp(28px, 4vw, 48px);
  background: rgba(17, 17, 17, 0.16);
  border: 1px solid rgba(17, 17, 17, 0.16);
}
.tool { background: var(--signal-cta); padding: clamp(24px, 3vw, 36px); }
.tool__num { font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; color: rgba(17, 17, 17, 0.55); }
.tool h3 { margin-top: 16px; font-size: clamp(19px, 2vw, 24px); font-weight: 700; }
.tool p { margin-top: 10px; font-size: 14px; color: rgba(17, 17, 17, 0.72); line-height: 1.55; }
.tools__cta { margin-top: clamp(24px, 3vw, 36px); }

/* ---------- 专栏（Art Blocks：1 特稿 + 3 列表） ---------- */

.journal { padding: clamp(48px, 8vw, 100px) 0; border-top: 1px solid var(--line); background: var(--paper-2); }
.jr-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}
.jr { cursor: default; }
/* 现场照片按裁切框比例填充，得到画册式的裁切图 */
.jr__crop {
  overflow: hidden;
  display: grid;
  place-items: center;
  background: #0f0f12;
}
.jr__thumb {
  display: block;
  width: 100%; height: 100%;
  object-fit: cover;
}
.jr__tag {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--signal);
}
.jr__desc { color: var(--mute); line-height: 1.55; }

.jr--feature .jr__crop { aspect-ratio: 4 / 3; }
.jr--feature .jr__tag { margin-top: 20px; }
.jr--feature h3 {
  margin-top: 12px; font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 600; letter-spacing: -0.025em; line-height: 1.15;
}
.jr--feature .jr__desc { margin-top: 12px; font-size: 15px; max-width: 46ch; }

.jr-list { display: grid; gap: clamp(18px, 2vw, 26px); }
.jr--row {
  display: grid;
  grid-template-columns: 128px 1fr;
  gap: 18px;
  align-items: center;
  padding-bottom: clamp(18px, 2vw, 26px);
  border-bottom: 1px solid var(--line);
}
.jr--row:last-child { border-bottom: 0; padding-bottom: 0; }
.jr--row .jr__crop { aspect-ratio: 1 / 1; }
.jr--row .jr__tag { margin: 0; }
.jr--row h3 {
  margin-top: 8px; font-size: clamp(15px, 1.4vw, 18px);
  font-weight: 600; letter-spacing: -0.015em; line-height: 1.25;
}
.jr--row .jr__desc { margin-top: 6px; font-size: 13px; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--ink); border-bottom: 1px solid var(--line-strong); padding-bottom: 3px;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.link-arrow::after { content: "→"; }
[dir="rtl"] .link-arrow::after { content: "←"; }
.link-arrow:hover { color: var(--signal); border-color: var(--signal); }

/* ---------- 订阅 ---------- */

.news { padding: clamp(40px, 6vw, 72px) 0; border-top: 1px solid var(--line); background: var(--paper-2); }
.news__inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 5vw, 64px); align-items: center;
}
.news__title { font-size: clamp(24px, 3vw, 34px); font-weight: 700; }
.news__lead { margin-top: 10px; color: var(--mute); font-size: 15px; max-width: 40ch; }
.news__form { display: flex; flex-wrap: wrap; gap: 10px; }
.news__input {
  flex: 1; min-width: 200px;
  padding: 14px 16px;
  border: 1px solid var(--line-strong); border-radius: var(--radius);
  background: var(--paper); color: var(--ink);
  font-family: var(--sans); font-size: 15px;
}
.news__input::placeholder { color: var(--mute); }
.news__input:focus { outline: 2px solid var(--signal); outline-offset: 1px; border-color: transparent; }
.news__note { flex-basis: 100%; font-size: 12px; color: var(--mute); }
.news__note.is-live { color: var(--signal); }

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {
  .drop__grid, .prov__grid, .creators__grid, .faq__grid, .section-head,
  .news__inner { grid-template-columns: 1fr; }
  .mint { position: static; }
  .section-head { align-items: start; }
  .assure__grid { grid-template-columns: repeat(2, 1fr); }
  .steps, .tool-grid, .jr-layout { grid-template-columns: 1fr; }
  .artist-row { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .nav__links, .nav__actions .lang { display: none; }
  .nav__menu { display: flex; }
  .nav__inner { justify-content: space-between; }
  .nav__actions { margin-inline-start: auto; }
  .mobile-nav[data-open="true"] { display: flex; }
  .hero { min-height: 78vh; }
  .footer__inner { grid-template-columns: 1fr; }
  .token-panel { grid-template-columns: 1fr; }
  .hero__foot { flex-direction: column; align-items: flex-start; gap: 18px; }
}

@media (max-width: 560px) {
  .mint__stats, .assure__grid { grid-template-columns: 1fr; }
  .traits { grid-template-columns: repeat(2, 1fr); }
  .footer__cols { grid-template-columns: 1fr; }
  .hero__meta { gap: 8px; flex-direction: column; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .artist-row { grid-template-columns: 1fr; }
  .rel-grid { grid-template-columns: 1fr; }
  .filters { flex-direction: column; align-items: stretch; }
  .jr--row { grid-template-columns: 96px 1fr; gap: 14px; }
}

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