/* =========================================
   Moospace Brand Guide — Styles
   ========================================= */

:root {
  --indigo: #16163F;
  --indigo-2: #211F40;
  --gold: #F5C843;
  --gold-warm: #D3B574;
  --ink: #3C3C4F;
  --mid: #69727D;
  --light: #F2F2F2;
  --off-white: #FAFAFA;
  --white: #FFFFFF;

  --font-zh: 'Noto Sans TC', -apple-system, system-ui, '微軟正黑體', sans-serif;
  --font-zh-serif: 'Noto Serif TC', serif;
  --font-en: 'Montserrat', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-en-serif: 'Merriweather', Georgia, serif;

  --container: 1180px;
  --radius: 4px;
  --shadow: 0 10px 40px -12px rgba(22, 22, 63, 0.18);
  --ease: cubic-bezier(.2,.7,.3,1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-zh);
  color: var(--ink);
  background: var(--white);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

/* =============== HEADER =============== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 16px 28px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid rgba(22, 22, 63, 0.06);
}

.brand {
  display: flex;
  align-items: center;
  color: var(--indigo);
  flex-shrink: 0;
}

.brand__logo {
  width: 110px;
  height: auto;
  color: var(--indigo);
}

.site-nav {
  display: flex;
  gap: 18px;
  font-size: 13px;
  letter-spacing: 0.04em;
  flex-wrap: wrap;
  justify-content: center;
}

.site-nav a {
  color: var(--mid);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.site-nav a:hover {
  color: var(--indigo);
  border-bottom-color: var(--gold-warm);
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--mid);
}

.lang-switch button {
  background: none;
  border: 0;
  padding: 4px 6px;
  font: inherit;
  color: var(--mid);
  cursor: pointer;
  letter-spacing: 0.05em;
}

.lang-switch button.is-active {
  color: var(--indigo);
  font-weight: 600;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Hamburger toggle — hidden on desktop, shown ≤960px via media query */
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: 0;
  cursor: pointer;
  position: relative;
  align-items: center;
  justify-content: center;
}
.nav-toggle span {
  display: block;
  position: absolute;
  left: 10px;
  width: 20px;
  height: 2px;
  background: var(--indigo);
  border-radius: 2px;
  transition: transform .3s var(--ease), opacity .2s var(--ease), top .3s var(--ease);
}
.nav-toggle span:nth-child(1) { top: 13px; }
.nav-toggle span:nth-child(2) { top: 19px; }
.nav-toggle span:nth-child(3) { top: 25px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { top: 19px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { top: 19px; transform: rotate(-45deg); }

.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(22, 22, 63, 0.42);
  backdrop-filter: blur(2px);
  opacity: 0;
  transition: opacity .3s var(--ease);
  pointer-events: none;
  z-index: 998;
}
.nav-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

/* =============== HERO =============== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(213, 181, 116, 0.22), transparent 55%),
    radial-gradient(ellipse at 70% 80%, rgba(245, 200, 67, 0.15), transparent 50%),
    linear-gradient(135deg, #0E0E2A 0%, #16163F 55%, #211F40 100%);
  color: var(--white);
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 50% 50%, rgba(245, 200, 67, 0.06) 0, transparent 2px),
    radial-gradient(circle at 20% 30%, rgba(245, 200, 67, 0.04) 0, transparent 2px),
    radial-gradient(circle at 80% 70%, rgba(213, 181, 116, 0.05) 0, transparent 2px);
  background-size: 120px 120px, 180px 180px, 150px 150px;
  opacity: 0.9;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  padding: 120px 28px 80px;
  max-width: 820px;
}

.hero__mark {
  width: 140px;
  margin: 0 auto 36px;
  animation: floaty 6s ease-in-out infinite;
}

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes floaty-centered {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, -8px); }
}

.hero__title {
  font-family: var(--font-zh-serif);
  font-weight: 500;
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1.4;
  margin: 0 0 16px;
  letter-spacing: 0.08em;
}

[data-lang="en"] .hero__title {
  font-family: var(--font-en-serif);
  font-weight: 300;
  letter-spacing: 0.02em;
}

.hero__subtitle {
  font-family: var(--font-en-serif);
  font-weight: 300;
  font-size: clamp(1rem, 2vw, 1.25rem);
  opacity: 0.82;
  margin: 0 0 36px;
  letter-spacing: 0.08em;
}

[data-lang="en"] .hero__subtitle {
  font-family: var(--font-zh-serif);
  letter-spacing: 0.1em;
}

.hero__kicker {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0;
}

.hero__scroll {
  position: absolute;
  bottom: 56px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.6);
  animation: floaty-centered 3s ease-in-out infinite;
}

/* =============== INTRO =============== */
.intro {
  padding: 90px 28px 40px;
}

.intro__lead {
  max-width: 780px;
  font-size: 1.1rem;
  line-height: 2;
  color: var(--ink);
  border-left: 2px solid var(--gold-warm);
  padding-left: 28px;
  margin: 0;
}

/* =============== SECTION =============== */
.section {
  padding: 110px 0;
  position: relative;
}

.section--alt {
  background: var(--off-white);
}

.section__head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 0 24px;
  margin-bottom: 60px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(22, 22, 63, 0.08);
}

.section__num {
  grid-row: 1 / 3;
  font-family: var(--font-en-serif);
  font-weight: 300;
  font-size: clamp(3rem, 7vw, 5rem);
  color: var(--gold-warm);
  line-height: 1;
  opacity: 0.9;
}

.section__title {
  font-family: var(--font-zh-serif);
  font-weight: 500;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  color: var(--indigo);
  margin: 0;
  letter-spacing: 0.06em;
}

[data-lang="en"] .section__title {
  font-family: var(--font-en-serif);
  font-weight: 300;
}

.section__eyebrow {
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--mid);
  margin: 6px 0 0;
}

.subsection-title {
  font-family: var(--font-zh);
  font-size: 1rem;
  font-weight: 500;
  color: var(--mid);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin: 60px 0 24px;
  padding-left: 12px;
  border-left: 2px solid var(--gold);
}

/* =============== ESSENCE =============== */
.essence-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.essence-card {
  background: var(--white);
  padding: 40px 36px;
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}

.essence-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.essence-card h3 {
  font-family: var(--font-zh);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.28em;
  color: var(--gold-warm);
  margin: 0 0 18px;
  text-transform: uppercase;
}

.essence-card p {
  margin: 0 0 10px;
  color: var(--ink);
}

.essence-card__big {
  font-family: var(--font-zh-serif);
  font-size: 1.6rem;
  font-weight: 500;
  line-height: 1.5;
  color: var(--indigo);
}

.essence-card__big--en {
  font-family: var(--font-en-serif);
  font-weight: 300;
  font-size: 1.2rem;
  color: var(--mid);
  font-style: italic;
}

.keyword-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.keyword-list li {
  padding: 8px 16px;
  border: 1px solid var(--gold-warm);
  border-radius: 999px;
  font-size: 0.92rem;
  color: var(--indigo);
  background: rgba(245, 200, 67, 0.08);
}

/* =============== LOGO SECTION =============== */
.logo-lockup {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.logo-lockup__item {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.logo-preview {
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
  color: var(--indigo);
}

.logo-preview--dark {
  background: var(--indigo);
  border-color: transparent;
  color: var(--white);
  padding: 0;
  overflow: hidden;
}

.logo-preview img {
  max-height: 100%;
  max-width: 80%;
}

/* Dark preview: lockups fill the tile */
.logo-preview--dark > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
  max-height: 100%;
}

.logo-lockup__caption {
  font-size: 0.9rem;
  color: var(--mid);
  margin: 0;
  text-align: center;
}

.logo-rules {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 30px;
}

.logo-rule {
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
  padding: 32px;
}

.logo-rule h3 {
  font-family: var(--font-zh-serif);
  color: var(--indigo);
  margin: 0 0 10px;
  font-size: 1.25rem;
}

.logo-rule p {
  color: var(--mid);
  margin: 0 0 24px;
  font-size: 0.95rem;
}

.logo-rule__visual {
  background: var(--off-white);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 180px;
}

.safe-box {
  padding: 40px;
  border: 1px dashed var(--gold-warm);
  position: relative;
  color: var(--indigo);
}

.safe-box::before,
.safe-box::after {
  content: '';
  position: absolute;
  border: 1px dashed rgba(213, 181, 116, 0.5);
  inset: -24px;
  pointer-events: none;
}

.safe-box img { width: 200px; }

.minsize-group {
  display: flex;
  align-items: flex-end;
  gap: 40px;
}

.minsize-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--indigo);
}

.minsize-item span {
  font-family: var(--font-en);
  font-size: 12px;
  color: var(--mid);
  letter-spacing: 0.1em;
}

/* Dont's grid */
.donts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.dont-item {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.dont-box {
  aspect-ratio: 4 / 3;
  background: var(--off-white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  position: relative;
  color: var(--indigo);
  overflow: hidden;
}

.dont-box img { max-width: 65%; max-height: 75%; }

.logo-mask {
  display: block;
  width: 65%;
  aspect-ratio: 3 / 2;
  background: currentColor;
  -webkit-mask: url(../logos/moospace-logo.svg) center/contain no-repeat;
  mask: url(../logos/moospace-logo.svg) center/contain no-repeat;
}
.logo-mask--red { color: #E74C3C; }

.dont-box::before {
  content: '✕';
  position: absolute;
  top: 10px;
  right: 12px;
  color: #E74C3C;
  font-size: 22px;
  font-weight: 300;
}

.dont-box--busy {
  background:
    radial-gradient(circle at 20% 30%, #F5C843 0, transparent 20%),
    radial-gradient(circle at 70% 60%, #D3B574 0, transparent 18%),
    radial-gradient(circle at 45% 80%, #16163F 0, transparent 22%),
    linear-gradient(135deg, #F2D0C0, #BBC5E4);
}

.dont-item p {
  font-size: 0.9rem;
  color: var(--mid);
  margin: 0;
  text-align: center;
}

/* =============== COLOR =============== */
.swatch-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 20px;
}

.swatch-grid--small {
  grid-template-columns: repeat(4, 1fr);
}

.swatch {
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}

.swatch:hover { transform: translateY(-3px); box-shadow: var(--shadow); }

.swatch__chip {
  height: 140px;
  background: var(--swatch);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.swatch-grid--small .swatch__chip { height: 90px; }

.swatch__info {
  padding: 22px 24px;
}

.swatch__info h4 {
  font-family: var(--font-zh-serif);
  color: var(--indigo);
  font-size: 1.2rem;
  margin: 0 0 14px;
  font-weight: 500;
}

.swatch-grid--small .swatch__info h4 {
  font-family: var(--font-en);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.1em;
}

.swatch__info dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 16px;
  margin: 0 0 14px;
  font-family: var(--font-en);
  font-size: 0.88rem;
}

.swatch__info dt {
  color: var(--mid);
  letter-spacing: 0.15em;
  font-size: 0.8rem;
}

.swatch__info dd {
  margin: 0;
  color: var(--ink);
  font-weight: 500;
}

.swatch__info p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--mid);
  line-height: 1.7;
}

.color-usage {
  margin-top: 60px;
}

.ratio-bar {
  display: flex;
  height: 64px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(22, 22, 63, 0.08);
}

.ratio-bar__seg {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-family: var(--font-en);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  font-weight: 500;
  transition: flex .6s var(--ease);
}

.ratio-note {
  color: var(--mid);
  font-size: 0.95rem;
  margin-top: 16px;
  line-height: 1.8;
}

/* =============== TYPOGRAPHY =============== */
.type-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.type-card {
  padding: 36px 32px;
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
}

.type-card__label {
  font-family: var(--font-en);
  font-size: 11px;
  color: var(--gold-warm);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  margin: 0 0 12px;
}

.type-card__name {
  color: var(--indigo);
  margin: 0 0 28px;
  font-size: 1.6rem;
  line-height: 1.3;
}

.type-card__sample {
  padding: 24px 0;
  border-top: 1px solid rgba(22,22,63,0.08);
  border-bottom: 1px solid rgba(22,22,63,0.08);
  margin-bottom: 20px;
  color: var(--indigo);
}

.type-card__sample p {
  margin: 0 0 12px;
  line-height: 1.5;
}

.type-card__sample p:last-child { margin-bottom: 0; }

.type-card__note {
  margin: 0;
  font-size: 0.9rem;
  color: var(--mid);
  line-height: 1.7;
}

.type-hierarchy {
  margin-top: 40px;
}

.hierarchy-sample {
  padding: 60px 48px;
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
}

.h-kicker {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 500;
  color: var(--gold-warm);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin: 0 0 20px;
}

.h-hero {
  font-family: var(--font-zh-serif);
  font-weight: 500;
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--indigo);
  margin: 0 0 14px;
  letter-spacing: 0.06em;
  line-height: 1.4;
}

.h-h2 {
  font-family: var(--font-en-serif);
  font-weight: 300;
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  color: var(--mid);
  font-style: italic;
  margin: 0 0 28px;
  letter-spacing: 0.05em;
}

.h-body {
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
  margin: 0 0 20px;
}

.h-caption {
  font-size: 13px;
  font-weight: 300;
  color: var(--mid);
  margin: 0;
}

/* =============== VISUAL =============== */
.visual-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.visual-card {
  padding: 32px;
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
}

.visual-card__demo {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  margin-bottom: 24px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.visual-card__demo--grid {
  background: linear-gradient(135deg, #FAFAFA, #F2F2F2);
  padding: 28px;
}

.visual-card__demo--photo {
  background:
    radial-gradient(circle at 30% 40%, rgba(213, 181, 116, 0.4), transparent 40%),
    radial-gradient(circle at 70% 60%, rgba(22, 22, 63, 0.25), transparent 50%),
    linear-gradient(180deg, #E8DED0 0%, #C9B89F 50%, #8A7A62 100%);
}

.visual-card__demo--icon {
  background: var(--off-white);
  padding: 0 20%;
}

.visual-card__demo--texture {
  background:
    radial-gradient(circle at 20% 30%, rgba(245, 200, 67, 0.25), transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(213, 181, 116, 0.35), transparent 45%),
    linear-gradient(135deg, #F5EFE5 0%, #E8DED0 100%);
}

.visual-card h3 {
  font-family: var(--font-zh-serif);
  color: var(--indigo);
  margin: 0 0 12px;
  font-size: 1.25rem;
}

.visual-card p {
  color: var(--mid);
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
}

/* =============== APPLICATION =============== */
.app-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.app-item {
  margin: 0;
}

.app-mock {
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  position: relative;
  margin-bottom: 14px;
}

.app-mock--podcast {
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, #0E0E2A, #211F40 60%, #3C3C4F);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--white);
  padding: 40px;
  gap: 24px;
}

.app-mock--podcast .app-mock__logo {
  width: 110px;
  opacity: 0.95;
}

.app-mock__text {
  text-align: center;
}

.app-mock__text p {
  margin: 0;
  font-family: var(--font-en);
  letter-spacing: 0.4em;
  font-size: 0.8rem;
  color: var(--gold-warm);
}

.app-mock__title {
  font-family: var(--font-zh-serif) !important;
  font-size: 2rem !important;
  color: var(--white) !important;
  letter-spacing: 0.15em !important;
  margin-top: 8px !important;
}

.app-mock--social {
  background:
    radial-gradient(circle at 30% 30%, rgba(245, 200, 67, 0.2), transparent 50%),
    linear-gradient(135deg, #FAFAFA, #F2F2F2);
  align-items: center;
  justify-content: center;
  padding: 40px;
  color: var(--indigo);
}

.app-mock__text--center { text-align: center; max-width: 280px; }

.app-mock__quote {
  font-family: var(--font-zh-serif);
  font-size: 1.35rem !important;
  line-height: 1.7;
  color: var(--indigo) !important;
  letter-spacing: 0.06em !important;
  margin: 0 0 28px !important;
}

.app-mock__logo-small {
  width: 90px;
  margin: 0 auto;
  color: var(--indigo);
  opacity: 0.8;
}

.app-mock--card {
  background: linear-gradient(135deg, #FAF5EA, #E8DED0);
  padding: 28px;
  flex-direction: column;
  justify-content: space-between;
  color: var(--indigo);
}

.app-mock__logo-card { width: 120px; color: var(--indigo); }

.app-mock__card-title {
  font-family: var(--font-zh-serif);
  font-size: 1.5rem !important;
  color: var(--indigo) !important;
  margin: 0 !important;
  letter-spacing: 0.1em !important;
}

.app-mock__card-sub {
  font-family: var(--font-en-serif);
  font-style: italic;
  color: var(--mid) !important;
  margin: 4px 0 0 !important;
  font-size: 0.9rem !important;
  letter-spacing: 0.05em !important;
}

.app-mock--namecard {
  background: var(--white);
  border: 1px solid rgba(22,22,63,0.1);
  padding: 32px;
  flex-direction: column;
  justify-content: space-between;
  color: var(--indigo);
}

.app-mock__logo-nc { width: 60px; color: var(--indigo); }

.app-mock__nc-name {
  font-family: var(--font-zh-serif);
  font-size: 1.4rem !important;
  color: var(--indigo) !important;
  margin: 0 !important;
  letter-spacing: 0.1em !important;
}

.app-mock__nc-title {
  font-size: 0.9rem !important;
  color: var(--gold-warm) !important;
  margin: 4px 0 12px !important;
  letter-spacing: 0.2em !important;
}

.app-mock__nc-contact {
  font-family: var(--font-en) !important;
  font-size: 0.8rem !important;
  color: var(--mid) !important;
  margin: 0 !important;
  letter-spacing: 0.05em !important;
}

.app-item figcaption {
  font-size: 0.9rem;
  color: var(--mid);
  letter-spacing: 0.15em;
  text-align: center;
  padding-top: 8px;
}

/* =============== DOWNLOAD =============== */
.dl-note {
  color: var(--mid);
  font-size: 0.95rem;
  margin: 0 0 40px;
  max-width: 680px;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.download-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  color: var(--ink);
}

.download-card:hover {
  transform: translateY(-3px);
  border-color: var(--gold-warm);
  box-shadow: var(--shadow);
}

.download-card__thumb {
  aspect-ratio: 4 / 3;
  background: var(--off-white);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  color: var(--indigo);
}

.download-card__thumb--dark { background: var(--indigo); color: var(--white); }

.download-card__thumb img { max-width: 80%; max-height: 80%; }

.download-card__ai {
  font-family: var(--font-en-serif);
  font-weight: 700;
  font-size: 3.5rem;
  letter-spacing: 0.04em;
  color: var(--gold-warm);
}

.download-card__info {
  padding: 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.download-card__info h4 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--indigo);
  margin: 0;
}

.download-card__fmt {
  font-family: var(--font-en);
  font-size: 12px;
  color: var(--mid);
  letter-spacing: 0.12em;
}

/* =============== FOOTER =============== */
.site-footer {
  background: var(--indigo);
  color: rgba(255, 255, 255, 0.7);
  padding: 70px 0 36px;
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  flex-wrap: wrap;
}

.site-footer__brand img { width: 140px; margin-bottom: 12px; filter: brightness(0) invert(1); }

.site-footer__brand p {
  font-family: var(--font-zh-serif);
  color: var(--gold-warm);
  letter-spacing: 0.15em;
  margin: 0;
}

.site-footer__meta { font-size: 0.9rem; text-align: right; }

.site-footer__meta p { margin: 0 0 6px; }

.site-footer__meta a { color: var(--gold-warm); transition: opacity .2s; }

.site-footer__meta a:hover { opacity: 0.7; }

.site-footer__copy {
  margin-top: 18px !important;
  font-size: 0.78rem !important;
  opacity: 0.55;
  letter-spacing: 0.05em;
}

/* =============== MVV (essence additions) =============== */
.mvv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 16px;
}

.mvv-card {
  position: relative;
  padding: 36px 30px 32px;
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}

.mvv-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

.mvv-card__badge {
  position: absolute;
  top: 20px;
  right: 24px;
  font-family: var(--font-en-serif);
  font-weight: 300;
  font-size: 3rem;
  color: var(--gold-warm);
  opacity: 0.4;
  line-height: 1;
}

.mvv-card h4 {
  font-family: var(--font-zh-serif);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--indigo);
  margin: 0 0 14px;
  letter-spacing: 0.06em;
}

.mvv-card p {
  margin: 0;
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.8;
}

.mvv-values {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mvv-values li {
  display: flex;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(22, 22, 63, 0.08);
  font-size: 0.95rem;
}

.mvv-values li:last-child { border-bottom: 0; }

.mvv-values strong {
  flex-shrink: 0;
  width: 4em;
  color: var(--gold-warm);
  font-weight: 500;
  letter-spacing: 0.15em;
}

.mvv-values span { color: var(--mid); }

/* =============== LOGO CONSTRUCTION =============== */
.construction-wrap {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 32px;
  align-items: center;
  margin: 20px 0 40px;
}

.construction-grid {
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
  padding: 28px 32px;
}

.construction-text p {
  color: var(--ink);
  font-size: 0.98rem;
  line-height: 1.9;
  margin: 0 0 20px;
}

.construction-specs {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid rgba(22, 22, 63, 0.08);
}

.construction-specs li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(22, 22, 63, 0.08);
  font-size: 0.92rem;
}

.construction-specs span {
  color: var(--mid);
  letter-spacing: 0.1em;
}

.construction-specs em {
  font-style: normal;
  font-family: var(--font-en);
  color: var(--indigo);
  font-weight: 500;
  letter-spacing: 0.05em;
}

/* =============== GRADIENT CARDS =============== */
.gradient-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.gradient-card {
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
  overflow: hidden;
}

.gradient-card__preview {
  height: 140px;
}

.gradient-card__info {
  padding: 22px 24px 24px;
}

.gradient-card__info h4 {
  font-family: var(--font-zh-serif);
  color: var(--indigo);
  font-size: 1.1rem;
  margin: 0 0 10px;
  font-weight: 500;
}

.gradient-card__info code {
  display: block;
  font-family: 'Consolas', 'Menlo', monospace;
  font-size: 0.72rem;
  color: var(--mid);
  background: var(--off-white);
  padding: 8px 10px;
  border-radius: 3px;
  margin-bottom: 14px;
  overflow-x: auto;
  white-space: nowrap;
}

.gradient-card__info p {
  margin: 0;
  color: var(--mid);
  font-size: 0.88rem;
  line-height: 1.7;
}

/* =============== VOICE =============== */
.voice-lead,
.photo-lead,
.icon-lead,
.pattern-lead,
.motion-lead,
.social-lead {
  max-width: 780px;
  color: var(--ink);
  font-size: 1.05rem;
  line-height: 2;
  margin: 0 0 48px;
  border-left: 2px solid var(--gold-warm);
  padding-left: 24px;
}

.voice-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.voice-card {
  padding: 32px 26px;
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}

.voice-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

.voice-card__num {
  display: block;
  font-family: var(--font-en-serif);
  font-weight: 300;
  font-size: 1.8rem;
  color: var(--gold-warm);
  margin-bottom: 12px;
  line-height: 1;
}

.voice-card h3 {
  font-family: var(--font-zh-serif);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--indigo);
  margin: 0 0 12px;
  letter-spacing: 0.06em;
}

.voice-card p {
  margin: 0;
  color: var(--mid);
  font-size: 0.92rem;
  line-height: 1.8;
}

.voice-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.voice-col {
  padding: 32px 28px;
  border-radius: var(--radius);
}

.voice-col--do {
  background: rgba(245, 200, 67, 0.08);
  border: 1px solid rgba(213, 181, 116, 0.4);
}

.voice-col--dont {
  background: rgba(231, 76, 60, 0.04);
  border: 1px solid rgba(231, 76, 60, 0.2);
}

.voice-col__head {
  font-family: var(--font-zh);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin: 0 0 20px;
}

.voice-col--do .voice-col__head { color: var(--gold-warm); }
.voice-col--dont .voice-col__head { color: #C0392B; }

.voice-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.voice-col li {
  padding: 10px 0;
  border-bottom: 1px dashed rgba(22, 22, 63, 0.08);
  color: var(--ink);
  font-family: var(--font-zh-serif);
  font-size: 1.02rem;
  line-height: 1.7;
}

.voice-col--dont li { color: var(--mid); text-decoration: line-through; text-decoration-color: rgba(231, 76, 60, 0.4); }
.voice-col li:last-child { border-bottom: 0; }

.rewrite-block {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
  padding: 40px 36px;
}

.rewrite-before, .rewrite-after { display: flex; flex-direction: column; gap: 12px; }

.rewrite-label {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--mid);
}

.rewrite-before p {
  color: var(--mid);
  font-size: 0.98rem;
  line-height: 1.8;
  margin: 0;
  opacity: 0.85;
  text-decoration: line-through;
  text-decoration-color: rgba(22, 22, 63, 0.25);
}

.rewrite-after p {
  color: var(--indigo);
  font-family: var(--font-zh-serif);
  font-size: 1.1rem;
  line-height: 1.8;
  margin: 0;
  letter-spacing: 0.04em;
}

.rewrite-arrow {
  font-family: var(--font-en-serif);
  font-size: 2rem;
  color: var(--gold-warm);
}

.voice-lang-rule {
  margin-top: 40px;
  padding: 28px 32px;
  background: var(--white);
  border-left: 3px solid var(--gold-warm);
  border-radius: var(--radius);
}

.voice-lang-rule h4 {
  font-family: var(--font-zh-serif);
  color: var(--indigo);
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.voice-lang-rule p {
  margin: 0;
  color: var(--mid);
  font-size: 0.95rem;
  line-height: 1.9;
}

/* =============== PHOTOGRAPHY =============== */
.photo-moodboard {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  margin: 0 0 44px;
  border-radius: var(--radius);
  overflow: hidden;
}

.photo-mood {
  aspect-ratio: 1 / 1.3;
  background-size: cover;
  background-position: center;
  transition: transform .8s var(--ease);
}

.photo-mood:hover { transform: scale(1.04); }

.photo-mood--morning {
  background:
    radial-gradient(circle at 30% 25%, rgba(255, 240, 210, 0.6), transparent 55%),
    linear-gradient(160deg, #F8EDDA 0%, #E5D2B6 60%, #BCA88A 100%);
}
.photo-mood--ritual {
  background:
    radial-gradient(circle at 60% 40%, rgba(220, 180, 150, 0.5), transparent 50%),
    linear-gradient(180deg, #EADBC8 0%, #C9A88A 55%, #8F7A66 100%);
}
.photo-mood--nature {
  background:
    radial-gradient(circle at 40% 60%, rgba(255, 210, 140, 0.3), transparent 55%),
    linear-gradient(160deg, #DDCFA7 0%, #9C9668 50%, #5C5A40 100%);
}
.photo-mood--water {
  background:
    radial-gradient(circle at 70% 40%, rgba(245, 200, 100, 0.25), transparent 55%),
    linear-gradient(180deg, #2A3448 0%, #161E30 50%, #0A1020 100%);
}
.photo-mood--meditation {
  background:
    radial-gradient(circle at 30% 50%, rgba(230, 200, 160, 0.45), transparent 55%),
    linear-gradient(180deg, #C7B9A4 0%, #6E6758 50%, #2E2A24 100%);
}
.photo-mood--crystal {
  background:
    radial-gradient(circle at 50% 45%, rgba(245, 220, 180, 0.4), transparent 55%),
    linear-gradient(135deg, #F0E4D0 0%, #D3B574 60%, #8A703E 100%);
}

.prompt-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.prompt-card {
  padding: 28px 30px;
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
  transition: border-color .3s var(--ease);
}

.prompt-card:hover { border-color: var(--gold-warm); }

.prompt-card__tag {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold-warm);
  margin: 0 0 10px;
}

.prompt-card h4 {
  font-family: var(--font-zh-serif);
  color: var(--indigo);
  margin: 0 0 16px;
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.06em;
}

.prompt-card__code {
  font-family: 'Consolas', 'Menlo', 'Courier New', monospace;
  font-size: 0.78rem;
  line-height: 1.8;
  color: var(--ink);
  background: var(--off-white);
  padding: 16px 18px;
  border-radius: 3px;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.photo-specs {
  margin-top: 44px;
  padding: 32px 36px;
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
}

.photo-specs h4,
.icon-rules h4,
.social-rules h4 {
  font-family: var(--font-zh-serif);
  color: var(--indigo);
  margin: 0 0 20px;
  font-size: 1.1rem;
  letter-spacing: 0.06em;
}

.photo-specs ul,
.icon-rules ul,
.social-rules ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.photo-specs li,
.icon-rules li {
  display: flex;
  gap: 20px;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(22, 22, 63, 0.08);
  font-size: 0.95rem;
}

.photo-specs li:last-child,
.icon-rules li:last-child { border-bottom: 0; }

.photo-specs strong,
.icon-rules strong {
  flex-shrink: 0;
  width: 7em;
  color: var(--gold-warm);
  letter-spacing: 0.15em;
  font-weight: 500;
  font-size: 0.88rem;
  text-transform: uppercase;
  font-family: var(--font-en);
}

.photo-specs span,
.icon-rules span { color: var(--ink); }

/* =============== ICONOGRAPHY =============== */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.icon-cell {
  margin: 0;
  padding: 28px 16px 22px;
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  color: var(--indigo);
  transition: transform .35s var(--ease), border-color .35s var(--ease), color .35s var(--ease);
}

.icon-cell:hover {
  transform: translateY(-3px);
  border-color: var(--gold-warm);
  color: var(--gold-warm);
}

.icon-svg {
  width: 48px;
  height: 48px;
}

.icon-cell figcaption {
  font-size: 0.82rem;
  color: var(--mid);
  letter-spacing: 0.1em;
  text-align: center;
}

.icon-rules {
  padding: 32px 36px;
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
}

/* =============== PATTERN =============== */
.pattern-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.pattern-card {
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
  overflow: hidden;
}

.pattern-demo {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
}

.pattern-demo--waves {
  background: linear-gradient(180deg, #FAFAFA, #F2F2F2);
  padding: 10px;
}

.pattern-demo--rings {
  background: linear-gradient(135deg, #FAFAFA, #E8E4D8);
}

.pattern-demo--grid {
  background:
    radial-gradient(circle at 50% 50%, rgba(245, 200, 67, 0.18), transparent 55%),
    linear-gradient(135deg, #0E0E2A, #211F40);
  background-image:
    linear-gradient(rgba(213, 181, 116, 0.4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(213, 181, 116, 0.4) 1px, transparent 1px),
    radial-gradient(circle at 50% 50%, rgba(245, 200, 67, 0.18), transparent 55%),
    linear-gradient(135deg, #0E0E2A, #211F40);
  background-size: 20px 20px, 20px 20px, 100% 100%, 100% 100%;
}

.pattern-demo--halo {
  background:
    radial-gradient(circle at 30% 40%, rgba(245, 200, 67, 0.55) 0, transparent 40%),
    radial-gradient(circle at 70% 60%, rgba(213, 181, 116, 0.4) 0, transparent 50%),
    linear-gradient(135deg, #F5EFE5 0%, #E8DED0 100%);
}

.pattern-demo--paper {
  background:
    repeating-linear-gradient(45deg, rgba(180, 150, 100, 0.03) 0 2px, transparent 2px 5px),
    repeating-linear-gradient(-45deg, rgba(180, 150, 100, 0.03) 0 2px, transparent 2px 5px),
    linear-gradient(180deg, #F8F2E5 0%, #EFE3CE 100%);
}

.pattern-demo--mineral {
  background:
    radial-gradient(ellipse at 20% 30%, rgba(55, 50, 70, 0.3), transparent 35%),
    radial-gradient(ellipse at 75% 60%, rgba(120, 100, 80, 0.35), transparent 40%),
    radial-gradient(ellipse at 50% 80%, rgba(200, 170, 130, 0.3), transparent 40%),
    linear-gradient(135deg, #8C7E66 0%, #5B5242 100%);
}

.pattern-card h4 {
  font-family: var(--font-zh-serif);
  color: var(--indigo);
  margin: 20px 26px 8px;
  font-size: 1.05rem;
  font-weight: 500;
}

.pattern-card p {
  margin: 0 26px 22px;
  color: var(--mid);
  font-size: 0.9rem;
  line-height: 1.8;
}

/* =============== MOTION =============== */
.motion-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 20px;
}

.motion-card {
  padding: 22px 22px 26px;
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
  text-align: center;
}

.motion-demo {
  height: 110px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--off-white);
  border-radius: var(--radius);
  margin-bottom: 20px;
  overflow: hidden;
}

@keyframes breath {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}

@keyframes float-gentle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes ripple-out {
  0% { transform: scale(0.4); opacity: 0.7; }
  100% { transform: scale(2.2); opacity: 0; }
}

@keyframes fade-up-demo {
  0% { transform: translateY(16px); opacity: 0; }
  40% { transform: translateY(0); opacity: 1; }
  60% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(-16px); opacity: 0; }
}

.motion-breath {
  color: var(--indigo);
  animation: breath 4s ease-in-out infinite;
  transform-origin: center;
}

.motion-float {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gold);
  animation: float-gentle 6s ease-in-out infinite;
  box-shadow: 0 0 24px rgba(245, 200, 67, 0.6);
}

.motion-ripple {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--gold-warm);
  position: relative;
}

.motion-ripple::before,
.motion-ripple::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  border: 2px solid var(--gold-warm);
  animation: ripple-out 2.4s cubic-bezier(.2,.7,.3,1) infinite;
}

.motion-ripple::after { animation-delay: 1.2s; }

.motion-fade {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--indigo);
  animation: fade-up-demo 2.8s cubic-bezier(.2,.7,.3,1) infinite;
}

@media (prefers-reduced-motion: reduce) {
  .motion-breath, .motion-float, .motion-ripple::before, .motion-ripple::after, .motion-fade,
  .hero__mark, .hero__scroll { animation: none !important; }
}

.motion-card h4 {
  font-family: var(--font-zh-serif);
  color: var(--indigo);
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 500;
}

.motion-card code {
  display: block;
  font-family: 'Consolas', 'Menlo', monospace;
  font-size: 0.72rem;
  color: var(--gold-warm);
  background: var(--off-white);
  padding: 6px 10px;
  border-radius: 3px;
  margin-bottom: 12px;
  white-space: nowrap;
  overflow-x: auto;
}

.motion-card p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--mid);
  line-height: 1.7;
}

.motion-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.spec-block {
  padding: 28px 28px 24px;
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
}

.spec-block h5 {
  font-family: var(--font-zh-serif);
  color: var(--indigo);
  margin: 0 0 18px;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.spec-block ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.spec-block li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(22, 22, 63, 0.08);
  font-size: 0.88rem;
}

.spec-block li:last-child { border-bottom: 0; }

.spec-block code,
.spec-block strong {
  flex-shrink: 0;
  font-family: var(--font-en);
  color: var(--ink);
  font-weight: 500;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  background: var(--off-white);
  padding: 3px 8px;
  border-radius: 3px;
  white-space: nowrap;
}

.spec-block span { color: var(--mid); font-size: 0.85rem; line-height: 1.6; }

/* =============== SOCIAL TEMPLATES =============== */
.social-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.social-item { margin: 0; }

.social-mock {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  margin-bottom: 14px;
}

.social-mock--post {
  aspect-ratio: 1 / 1;
  background:
    radial-gradient(circle at 30% 30%, rgba(245, 200, 67, 0.2), transparent 55%),
    linear-gradient(135deg, #FAFAFA, #F0E8D8);
  padding: 40px 32px 30px;
  justify-content: space-between;
  align-items: center;
  text-align: center;
}

.social-mock__quote p {
  font-family: var(--font-zh-serif);
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--indigo);
  letter-spacing: 0.08em;
  margin: 20px 0 0;
}

.social-mock__logo { width: 64px; margin-top: auto; opacity: 0.8; }

.social-mock--story {
  aspect-ratio: 9 / 16;
  background: linear-gradient(180deg, #0E0E2A 0%, #16163F 50%, #2A2A4A 100%);
  color: var(--white);
  padding: 20px 24px 28px;
  justify-content: space-between;
}

.social-mock__story-head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  color: rgba(255,255,255,0.8);
}

.social-mock__story-head img { width: 26px; height: 26px; border-radius: 50%; background: var(--white); padding: 3px; }

.social-mock__story-body {
  text-align: center;
  padding: 0 8px;
}

.social-mock__story-kicker {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  color: var(--gold-warm);
  margin: 0 0 18px;
}

.social-mock__story-title {
  font-family: var(--font-zh-serif);
  font-size: 1.5rem;
  line-height: 1.6;
  letter-spacing: 0.1em;
  margin: 0;
  color: var(--white);
}

.social-mock__story-foot {
  text-align: center;
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--gold);
}

.social-mock--reel {
  aspect-ratio: 9 / 16;
  background:
    radial-gradient(circle at 70% 20%, rgba(245, 200, 67, 0.22), transparent 55%),
    linear-gradient(180deg, #1A1A30 0%, #0E0E2A 100%);
  color: var(--white);
  padding: 24px 22px;
  justify-content: space-between;
}

.social-mock__reel-logo img { width: 50px; opacity: 0.9; }

.social-mock__reel-text { margin-bottom: 8px; }

.social-mock__reel-ep {
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: var(--gold);
  margin: 0 0 16px;
}

.social-mock__reel-title {
  font-family: var(--font-zh-serif);
  font-size: 1.45rem;
  line-height: 1.5;
  letter-spacing: 0.1em;
  color: var(--white);
  margin: 0 0 14px;
}

.social-mock__reel-sub {
  font-family: var(--font-en-serif);
  font-style: italic;
  font-size: 0.72rem;
  color: rgba(255,255,255,0.5);
  margin: 0;
  letter-spacing: 0.05em;
}

.social-mock--carousel {
  aspect-ratio: 4 / 5;
  background: linear-gradient(160deg, #F8F2E5 0%, #E8DED0 100%);
  padding: 30px 28px;
  color: var(--indigo);
  justify-content: space-between;
}

.social-mock__car-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold-warm);
  align-self: flex-start;
}

.social-mock__car-num {
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: var(--mid);
}

.social-mock__car-title {
  font-family: var(--font-zh-serif);
  font-size: 1.25rem;
  line-height: 1.7;
  letter-spacing: 0.1em;
  color: var(--indigo);
  margin: auto 0;
}

.social-mock__car-sub {
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  color: var(--gold-warm);
  margin: 0;
}

.social-item figcaption {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding-top: 8px;
}

.social-item figcaption strong {
  font-family: var(--font-zh);
  font-weight: 500;
  color: var(--indigo);
  font-size: 0.92rem;
  letter-spacing: 0.08em;
}

.social-item figcaption span {
  font-family: var(--font-en);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  color: var(--mid);
}

.social-rules {
  padding: 32px 36px;
  background: var(--white);
  border: 1px solid rgba(22, 22, 63, 0.08);
  border-radius: var(--radius);
}

.social-rules li {
  padding: 10px 0 10px 24px;
  border-bottom: 1px dashed rgba(22, 22, 63, 0.08);
  color: var(--ink);
  font-size: 0.95rem;
  line-height: 1.8;
  position: relative;
}

.social-rules li::before {
  content: '◇';
  position: absolute;
  left: 0;
  top: 10px;
  color: var(--gold-warm);
  font-size: 0.8rem;
}

.social-rules li:last-child { border-bottom: 0; }

/* =============== i18n helpers =============== */
/* Show different content per language via attribute */
[data-lang] { }

/* =============== RESPONSIVE =============== */
@media (max-width: 1180px) {
  .site-nav { gap: 14px; font-size: 12px; }
  .icon-grid { grid-template-columns: repeat(4, 1fr); }
  .voice-grid { grid-template-columns: repeat(2, 1fr); }
  .motion-grid { grid-template-columns: repeat(2, 1fr); }
  .social-grid { grid-template-columns: repeat(2, 1fr); }
  .pattern-grid,
  .gradient-grid,
  .mvv-grid,
  .motion-specs { grid-template-columns: repeat(2, 1fr); }
  .construction-wrap { grid-template-columns: 1fr; }
  .photo-moodboard { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 960px) {
  /* Hamburger visible, nav becomes slide-in panel */
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(320px, 82vw);
    background: #FFFFFF;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    gap: 0;
    padding: 90px 0 32px;
    transform: translateX(100%);
    transition: transform .38s var(--ease);
    box-shadow: -18px 0 42px rgba(22, 22, 63, 0.12);
    z-index: 999;
    font-size: 15px;
    overflow-y: auto;
  }
  .site-nav.is-open { transform: translateX(0); }
  .site-nav a {
    padding: 14px 28px;
    border-bottom: 1px solid rgba(22, 22, 63, 0.06);
    letter-spacing: 0.08em;
  }
  .site-nav a:hover,
  .site-nav a:active {
    background: var(--off-white);
    border-bottom-color: rgba(22, 22, 63, 0.06);
    color: var(--indigo);
  }
  body.nav-open { overflow: hidden; }

  .hero__inner { padding: 100px 28px 100px; }
  .essence-grid,
  .logo-lockup,
  .logo-rules,
  .swatch-grid,
  .type-grid,
  .visual-grid,
  .app-grid,
  .prompt-grid,
  .voice-compare,
  .pattern-grid,
  .gradient-grid,
  .mvv-grid,
  .motion-specs { grid-template-columns: 1fr; }
  .swatch-grid--small { grid-template-columns: repeat(2, 1fr); }
  .donts-grid { grid-template-columns: repeat(2, 1fr); }
  .download-grid { grid-template-columns: repeat(2, 1fr); }
  .icon-grid { grid-template-columns: repeat(3, 1fr); }
  .voice-grid,
  .motion-grid,
  .social-grid { grid-template-columns: repeat(2, 1fr); }
  .photo-moodboard { grid-template-columns: repeat(2, 1fr); }
  .rewrite-block { grid-template-columns: 1fr; text-align: center; }
  .rewrite-arrow { transform: rotate(90deg); }
  .section { padding: 80px 0; }
  .section__head { margin-bottom: 40px; }
  .hierarchy-sample { padding: 36px 28px; }
  .site-footer__inner { flex-direction: column; }
  .site-footer__meta { text-align: left; }
}

@media (max-width: 520px) {
  .container { padding: 0 20px; }
  .donts-grid { grid-template-columns: 1fr; }
  .download-grid { grid-template-columns: 1fr; }
  .icon-grid { grid-template-columns: repeat(2, 1fr); }
  .voice-grid, .motion-grid, .social-grid { grid-template-columns: 1fr; }
  .photo-moodboard { grid-template-columns: 1fr; }
  .hero__mark { width: 100px; }
  .lang-switch { font-size: 12px; }
  .brand__logo { width: 90px; }
  .site-header { padding: 12px 18px; }
  .intro.container { padding: 60px 20px 30px; }
  .intro__lead { padding-left: 20px; font-size: 1rem; line-height: 1.9; }
  .hero { min-height: 85vh; }
  .hero__inner { padding: 60px 24px 90px; }
  .hero__mark { width: 90px; margin-bottom: 28px; }
  .hero__title { font-size: 1.75rem; line-height: 1.45; letter-spacing: 0.06em; margin-bottom: 14px; }
  .hero__subtitle { font-size: 0.95rem; margin-bottom: 28px; }
  .hero__kicker { font-size: 11px; letter-spacing: 0.24em; }
  .hero__scroll { bottom: 24px; font-size: 11px; }
}