:root {
  --ink: #0b1220;
  --ink-soft: #1a2438;
  --fog: #eef3f8;
  --paper: #f7fafc;
  --rose: #ff3d7f;
  --rose-deep: #d9185f;
  --mint: #19d3c5;
  --mint-deep: #0ea89c;
  --amber: #ffb020;
  --line: rgba(11, 18, 32, 0.08);
  --glass: rgba(255, 255, 255, 0.55);
  --shadow: 0 18px 48px rgba(11, 18, 32, 0.12);
  --radius: 22px;
  --nav-h: 64px;
  --dock-h: 0px;
  --font-display: "ZCOOL XiaoWei", "Noto Serif SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(255, 61, 127, 0.16), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(25, 211, 197, 0.14), transparent 55%),
    linear-gradient(180deg, #f5f8fc 0%, #eef2f7 48%, #f9fbfd 100%);
  line-height: 1.75;
  padding-top: var(--nav-h);
  transition: padding-bottom 0.25s ease;
}

body.dock-open {
  padding-bottom: calc(var(--dock-h) + 16px);
}

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

a {
  color: var(--rose-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--mint-deep);
}

.mira-skip {
  position: absolute;
  left: -999px;
  top: 0;
}

.mira-topbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: rgba(11, 18, 32, 0.72);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mira-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.04em;
}

.mira-brand img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  box-shadow: 0 0 0 2px rgba(255, 61, 127, 0.45);
}

.mira-nav-toggle {
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  display: grid;
  place-items: center;
  gap: 5px;
  cursor: pointer;
}

.mira-nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: #fff;
  transition: 0.25s ease;
}

.mira-nav-toggle.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mira-nav-toggle.is-active span:nth-child(2) {
  opacity: 0;
}

.mira-nav-toggle.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mira-nav-panel {
  position: fixed;
  top: var(--nav-h);
  right: 12px;
  left: 12px;
  z-index: 999;
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 14px;
  border-radius: 18px;
  background: rgba(17, 24, 39, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.mira-nav-panel.is-open {
  display: flex;
  animation: mira-pop 0.28s ease;
}

.mira-nav-panel a {
  color: #f3f6fb;
  text-decoration: none;
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 0.98rem;
}

.mira-nav-panel a:hover {
  background: rgba(255, 61, 127, 0.18);
  color: #fff;
}

@keyframes mira-pop {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

#download-dock {
  position: fixed;
  left: 0;
  right: 0;
  top: var(--nav-h);
  z-index: 980;
  transform: translateY(-120%);
  opacity: 0;
  pointer-events: none;
  transition: 0.28s ease;
  background: rgba(247, 250, 252, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  padding: 8px 10px;
}

#download-dock.is-visible {
  transform: none;
  opacity: 1;
  pointer-events: auto;
  --dock-h: 92px;
}

body.dock-open {
  --dock-h: 92px;
}

.dock-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px 6px;
  max-width: 1100px;
  margin: 0 auto;
}

.dock-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  color: #445;
  font-size: 11px;
  line-height: 1.2;
}

.dock-chip img {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  object-fit: cover;
  box-shadow: 0 6px 14px rgba(11, 18, 32, 0.12);
}

.dock-chip span {
  max-width: 72px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.promo-wrap {
  margin: 12px 14px 0;
  padding: 14px 10px 8px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(255, 61, 127, 0.08), rgba(25, 211, 197, 0.1));
  border: 1px solid rgba(255, 61, 127, 0.12);
}

.promo-wrap h2 {
  margin: 0 0 10px;
  text-align: center;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink-soft);
}

.promo-rail {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 8px;
}

.promo-fig {
  margin: 0;
  width: 72px;
  text-align: center;
}

.promo-fig img {
  width: 65px;
  height: 65px;
  object-fit: cover;
  border-radius: 18px;
  margin: 0 auto;
  box-shadow: 0 6px 18px rgba(24, 24, 24, 0.12);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.promo-fig a:hover img {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 10px 24px rgba(24, 24, 24, 0.18);
}

.promo-cap {
  margin-top: 4px;
  font-size: 11px;
  color: #666;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mira-hero {
  position: relative;
  overflow: hidden;
  padding: 36px 18px 48px;
  min-height: calc(100vh - var(--nav-h));
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.mira-hero::before {
  content: "";
  position: absolute;
  inset: 8% -20% auto auto;
  width: 70vw;
  height: 70vw;
  max-width: 520px;
  max-height: 520px;
  border-radius: 42% 58% 48% 52%;
  background:
    radial-gradient(circle at 30% 30%, rgba(255, 176, 32, 0.35), transparent 45%),
    linear-gradient(140deg, rgba(255, 61, 127, 0.45), rgba(25, 211, 197, 0.35));
  filter: blur(2px);
  animation: mira-blob 12s ease-in-out infinite alternate;
  z-index: 0;
}

@keyframes mira-blob {
  from {
    transform: rotate(0deg) scale(1);
  }
  to {
    transform: rotate(18deg) scale(1.08);
  }
}

.mira-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 980px;
  margin: 0 auto;
}

.mira-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 8vw, 3.4rem);
  color: var(--ink);
  margin: 0 0 12px;
  letter-spacing: 0.06em;
  text-shadow: 0 8px 30px rgba(255, 61, 127, 0.18);
  animation: mira-rise 0.8s ease both;
}

.mira-kicker img {
  width: 52px;
  height: 52px;
  border-radius: 16px;
}

.mira-hero h1 {
  margin: 0 0 14px;
  font-size: clamp(1.25rem, 4.6vw, 1.85rem);
  line-height: 1.35;
  font-weight: 700;
  max-width: 18em;
  animation: mira-rise 0.9s 0.08s ease both;
}

.mira-hero-lead {
  margin: 0;
  max-width: 36em;
  color: #3a465c;
  font-size: 1.02rem;
  animation: mira-rise 1s 0.16s ease both;
}

@keyframes mira-rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.mira-wave {
  height: 48px;
  background:
    radial-gradient(circle at 20% 0, transparent 20px, rgba(255, 61, 127, 0.06) 21px) 0 0 / 40px 40px,
    linear-gradient(90deg, rgba(25, 211, 197, 0.08), rgba(255, 61, 127, 0.06));
  clip-path: polygon(0 40%, 8% 55%, 18% 35%, 30% 60%, 42% 30%, 55% 58%, 68% 38%, 80% 62%, 92% 42%, 100% 55%, 100% 100%, 0 100%);
}

.mira-shell {
  width: min(1080px, calc(100% - 28px));
  margin: 0 auto;
  padding: 28px 0 48px;
}

.mira-crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 0.88rem;
  color: #60708a;
  margin: 18px 0 8px;
}

.mira-crumb a {
  color: #44576f;
  text-decoration: none;
}

.mira-crumb a:hover {
  color: var(--rose);
}

.mira-section {
  margin: 28px 0 42px;
}

.mira-section h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 4vw, 1.85rem);
  letter-spacing: 0.03em;
  position: relative;
  padding-left: 14px;
}

.mira-section h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.22em;
  bottom: 0.22em;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--rose), var(--mint));
}

.mira-section h3 {
  margin: 22px 0 10px;
  font-size: 1.12rem;
  color: var(--ink-soft);
}

.mira-section p {
  margin: 0 0 14px;
  color: #2c384d;
  font-size: 1rem;
}

.mira-section ul {
  margin: 0 0 16px;
  padding-left: 1.2em;
  color: #2c384d;
}

.mira-section li {
  margin-bottom: 8px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}

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

.mira-split {
  display: grid;
  gap: 22px;
  align-items: center;
}

.mira-split.reverse .mira-phone {
  order: -1;
}

.mira-phone {
  position: relative;
  justify-self: center;
  width: min(280px, 78vw);
  padding: 12px;
  border-radius: 28px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.35));
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
  transform: rotate(-2.5deg);
  transition: transform 0.35s ease;
}

.mira-phone:hover {
  transform: rotate(0deg) translateY(-4px);
}

.mira-phone img {
  width: 100%;
  border-radius: 18px;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: top;
}

.mira-phone.tilt-right {
  transform: rotate(2.8deg);
}

.mira-mosaic {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.mira-tile {
  padding: 18px 18px 16px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid rgba(255, 255, 255, 0.65);
  box-shadow: 0 10px 28px rgba(11, 18, 32, 0.06);
  backdrop-filter: blur(8px);
}

.mira-tile h3 {
  margin-top: 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
}

.mira-tile p:last-child {
  margin-bottom: 0;
}

.mira-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.mira-gallery figure {
  margin: 0;
  border-radius: 18px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 12px 30px rgba(11, 18, 32, 0.08);
}

.mira-gallery img {
  width: 100%;
  aspect-ratio: 9 / 14;
  object-fit: cover;
  object-position: top;
  transition: transform 0.45s ease;
}

.mira-gallery figure:hover img {
  transform: scale(1.04);
}

.mira-gallery figcaption {
  padding: 8px 10px 10px;
  font-size: 0.78rem;
  color: #60708a;
}

.mira-band {
  margin: 36px calc(50% - 50vw);
  padding: 36px 18px;
  width: 100vw;
  background:
    linear-gradient(120deg, rgba(11, 18, 32, 0.94), rgba(26, 36, 56, 0.92)),
    radial-gradient(circle at 80% 20%, rgba(255, 61, 127, 0.35), transparent 40%);
  color: #e8eef8;
}

.mira-band .mira-shell {
  padding-top: 0;
  padding-bottom: 0;
}

.mira-band h2 {
  color: #fff;
}

.mira-band h2::before {
  background: linear-gradient(180deg, var(--amber), var(--mint));
}

.mira-band p,
.mira-band li {
  color: rgba(232, 238, 248, 0.9);
}

.mira-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.mira-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  border: 0;
  cursor: pointer;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.98rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.mira-btn-rose {
  background: linear-gradient(135deg, var(--rose), var(--rose-deep));
  color: #fff;
  box-shadow: 0 10px 24px rgba(255, 61, 127, 0.35);
}

.mira-btn-rose:hover {
  color: #fff;
}

.mira-btn-ghost {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.28);
}

.mira-btn-ghost:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.16);
}

.mira-timeline {
  display: grid;
  gap: 16px;
  border-left: 2px dashed rgba(255, 61, 127, 0.35);
  margin-left: 8px;
  padding-left: 18px;
}

.mira-timeline article {
  position: relative;
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--line);
}

.mira-timeline article::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 22px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 4px rgba(25, 211, 197, 0.2);
}

.mira-legal {
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 22px 18px;
}

.mira-error {
  text-align: center;
  padding: 48px 18px 64px;
}

.mira-error .code {
  font-family: var(--font-display);
  font-size: clamp(4rem, 18vw, 7rem);
  line-height: 1;
  background: linear-gradient(120deg, var(--rose), var(--mint));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin: 0;
}

.mira-footer {
  margin-top: 24px;
  padding: 36px 18px 48px;
  background: #0b1220;
  color: rgba(232, 238, 248, 0.82);
}

.mira-footer-inner {
  width: min(1080px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 22px;
}

.mira-footer a {
  color: #9adfd8;
  text-decoration: none;
}

.mira-footer a:hover {
  color: #fff;
}

.mira-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
}

.mira-footer small {
  display: block;
  color: rgba(232, 238, 248, 0.55);
}

@media (min-width: 768px) {
  .mira-topbar {
    padding: 0 28px;
  }

  .mira-nav-toggle {
    display: none;
  }

  .mira-nav-panel {
    position: static;
    display: flex !important;
    flex-direction: row;
    align-items: center;
    gap: 4px;
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
  }

  .mira-nav-panel a {
    padding: 8px 12px;
    font-size: 0.92rem;
  }

  .dock-grid {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }

  #download-dock.is-visible,
  body.dock-open {
    --dock-h: 88px;
  }

  .mira-hero {
    padding: 56px 32px 72px;
  }

  .mira-split {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 40px;
  }

  .mira-split.reverse {
    grid-template-columns: 0.95fr 1.05fr;
  }

  .mira-split.reverse .mira-phone {
    order: 0;
  }

  .mira-mosaic {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .mira-legal {
    padding: 32px 36px;
  }

  .mira-footer-inner {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .mira-gallery {
    grid-template-columns: repeat(4, 1fr);
  }
}