/* 蜜桃视频 · grove design system — unique to mitaoshpin.cn */
:root {
  --ink: #140c10;
  --ink-soft: #24161c;
  --blush: #ff7a6a;
  --peach: #ff9a6b;
  --nectar: #ffc28a;
  --cream: #fff4ec;
  --fog: rgba(255, 244, 236, 0.72);
  --mist: rgba(255, 244, 236, 0.48);
  --line: rgba(255, 194, 138, 0.22);
  --ok: #5ecf9a;
  --radius: 18px;
  --wrap: min(1180px, calc(100% - 2.5rem));
  --font-display: "Bricolage Grotesque", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", "Bricolage Grotesque", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100%;
  color: var(--cream);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.65;
  background:
    radial-gradient(1200px 700px at 80% -10%, rgba(255, 122, 106, 0.22), transparent 55%),
    radial-gradient(900px 500px at -10% 30%, rgba(255, 194, 138, 0.12), transparent 50%),
    linear-gradient(180deg, #1a0f14 0%, var(--ink) 40%, #0f0a0c 100%);
  overflow-x: hidden;
}

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

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

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

.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--peach);
  color: var(--ink);
  padding: 0.6rem 1rem;
  z-index: 100;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
}

.wrap {
  width: var(--wrap);
  margin-inline: auto;
}

/* Atmosphere */
.atmosphere {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 244, 236, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 244, 236, 0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
  opacity: 0.45;
}

.glow-orb {
  position: fixed;
  width: 42vw;
  height: 42vw;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.18;
  pointer-events: none;
  z-index: 0;
  animation: drift 18s var(--ease) infinite alternate;
}

.glow-orb.a {
  top: -12vw;
  right: -8vw;
  background: var(--blush);
}

.glow-orb.b {
  bottom: 10%;
  left: -16vw;
  background: var(--nectar);
  animation-delay: -6s;
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(4%, 6%, 0) scale(1.08); }
}

/* Nav */
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  transition: background 0.35s var(--ease), backdrop-filter 0.35s var(--ease), border-color 0.35s;
  border-bottom: 1px solid transparent;
}

.nav.is-solid {
  background: rgba(20, 12, 16, 0.78);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.25rem;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.35rem;
  color: var(--fog);
  font-size: 0.95rem;
}

.nav-links a {
  position: relative;
  transition: color 0.25s;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--cream);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--blush), var(--peach) 55%, var(--nectar));
  color: #2a1210;
  font-weight: 700;
  font-size: 0.92rem;
  box-shadow: 0 10px 30px rgba(255, 122, 106, 0.28);
  transition: transform 0.25s var(--ease), box-shadow 0.25s;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(255, 122, 106, 0.36);
}

.menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  place-items: center;
}

.menu-btn span,
.menu-btn span::before,
.menu-btn span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--cream);
  position: relative;
}

.menu-btn span::before,
.menu-btn span::after {
  content: "";
  position: absolute;
  left: 0;
}

.menu-btn span::before { top: -6px; }
.menu-btn span::after { top: 6px; }

/* Hero — clean split: copy left, one product shot right */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 70% 60% at 85% 40%, rgba(255, 122, 106, 0.22), transparent 58%),
    radial-gradient(ellipse 50% 45% at 10% 80%, rgba(255, 194, 138, 0.1), transparent 55%),
    linear-gradient(165deg, #1f1218 0%, #140c10 45%, #0e090b 100%);
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("../image/banner1.jpg");
  background-size: cover;
  background-position: 82% 40%;
  opacity: 0.18;
  mask-image: linear-gradient(90deg, transparent 0%, transparent 42%, black 78%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, transparent 42%, black 78%);
}

.hero-grid {
  width: var(--wrap);
  margin-inline: auto;
  padding: 7rem 0 4rem;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-logo {
  width: 72px;
  height: 72px;
  border-radius: 18px;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: rise 0.85s var(--ease) 0.05s forwards;
}

.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(4.5rem, 11vw, 7.5rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: #fff6ef;
  opacity: 0;
  animation: rise 0.95s var(--ease) 0.15s forwards;
}

.hero-tag {
  margin: 1.1rem 0 0;
  color: var(--nectar);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  opacity: 0;
  animation: rise 0.95s var(--ease) 0.25s forwards;
}

.hero-lead {
  margin: 1rem 0 0;
  max-width: 28em;
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--fog);
  opacity: 0;
  animation: rise 0.95s var(--ease) 0.35s forwards;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.85rem;
  opacity: 0;
  animation: rise 0.95s var(--ease) 0.45s forwards;
}

.hero-device {
  margin: 0;
  justify-self: end;
  width: min(100%, 340px);
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid rgba(255, 244, 236, 0.16);
  background: #2a1840;
  box-shadow:
    0 0 0 1px rgba(255, 154, 107, 0.08),
    0 28px 64px rgba(0, 0, 0, 0.45);
  opacity: 0;
  animation: rise 1s var(--ease) 0.3s forwards;
}

.hero-device img {
  width: 100%;
  height: auto;
  display: block;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 3.25rem;
  padding: 0.8rem 1.55rem;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.25s var(--ease), background 0.25s, border-color 0.25s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blush), var(--peach) 50%, var(--nectar));
  color: #2a1210;
  box-shadow: 0 16px 40px rgba(255, 122, 106, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
}

.btn-ghost {
  border: 1px solid rgba(255, 244, 236, 0.28);
  background: rgba(255, 244, 236, 0.06);
  color: var(--cream);
}

.btn-ghost:hover {
  border-color: rgba(255, 194, 138, 0.55);
  background: rgba(255, 194, 138, 0.1);
}

@keyframes rise {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.reveal.in {
  opacity: 1;
  transform: none;
}

/* Sections */
main {
  position: relative;
  z-index: 1;
}

.section {
  padding: clamp(4.5rem, 9vw, 7rem) 0;
}

.section-head {
  max-width: 36rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.eyebrow {
  margin: 0 0 0.65rem;
  color: var(--peach);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.section-head p {
  margin: 0.9rem 0 0;
  color: var(--mist);
  font-size: 1.02rem;
  line-height: 1.75;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.about-copy h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.about-copy p {
  margin: 1rem 0 0;
  color: var(--mist);
  font-size: 1.02rem;
  line-height: 1.85;
}

.about-aside {
  padding: 1.4rem 1.35rem;
  border-left: 3px solid transparent;
  border-image: linear-gradient(180deg, var(--blush), var(--nectar)) 1;
  background: rgba(255, 244, 236, 0.04);
}

.about-aside h3 {
  margin: 0 0 0.85rem;
  font-size: 1.1rem;
}

.about-aside ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.about-aside li {
  position: relative;
  padding-left: 1rem;
  color: var(--fog);
  font-size: 0.98rem;
  line-height: 1.65;
}

.about-aside li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 0.35rem;
  height: 0.35rem;
  border-radius: 50%;
  background: var(--peach);
}

/* Promise strip */
.promise {
  border-block: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(255, 122, 106, 0.08), rgba(255, 194, 138, 0.05));
}

.promise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.promise-item strong {
  display: block;
  font-size: 1.15rem;
  margin-bottom: 0.35rem;
}

.promise-item p {
  margin: 0;
  color: var(--mist);
  font-size: 0.95rem;
}

/* Feature stage */
.feature-stage {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}

.feature-copy h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.feature-copy > p {
  margin: 1rem 0 0;
  color: var(--mist);
  line-height: 1.8;
}

.feature-list {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.feature-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: start;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
}

.feature-list .idx {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--nectar);
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  padding-top: 0.2rem;
}

.feature-list h3 {
  margin: 0 0 0.3rem;
  font-size: 1.12rem;
}

.feature-list p {
  margin: 0;
  color: var(--mist);
  font-size: 0.95rem;
}

/* Product shot — 完整展示海报，避免再套一层手机框 */
.shot-panel {
  margin: 0;
  justify-self: center;
  width: min(100%, 360px);
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #2a1840;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  animation: floaty 5.5s ease-in-out infinite;
}

.shot-panel img {
  width: 100%;
  height: auto;
}

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Showcase posters — 三列完整海报，不再硬裁切叠字 */
.poster-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.poster {
  margin: 0;
  display: flex;
  flex-direction: column;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(255, 244, 236, 0.03);
  transition: transform 0.45s var(--ease);
}

.poster:hover {
  transform: translateY(-4px);
}

.poster img {
  width: 100%;
  height: auto;
  display: block;
  background: #2a1840;
}

.poster figcaption {
  padding: 1rem 1.05rem 1.2rem;
}

.poster figcaption strong {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 1.05rem;
}

.poster figcaption span {
  display: block;
  color: var(--mist);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* Guide steps */
.guide-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.15rem;
}

.guide-steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1.15rem 0;
  border-top: 1px solid var(--line);
}

.guide-steps li:last-child {
  border-bottom: 1px solid var(--line);
}

.step-num {
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 800;
  color: #2a1210;
  background: linear-gradient(135deg, var(--blush), var(--nectar));
}

.guide-steps h3 {
  margin: 0.15rem 0 0.45rem;
  font-size: 1.15rem;
}

.guide-steps p {
  margin: 0;
  color: var(--mist);
  line-height: 1.8;
}

/* Download band */
.download-band {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  padding: clamp(2rem, 5vw, 3.4rem);
  border: 1px solid rgba(255, 194, 138, 0.28);
  min-height: 280px;
  display: flex;
  align-items: center;
}

.download-visual {
  position: absolute;
  inset: 0;
}

.download-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  filter: saturate(0.9);
}

.download-band::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(105deg, rgba(16, 9, 12, 0.94) 0%, rgba(16, 9, 12, 0.82) 48%, rgba(16, 9, 12, 0.55) 100%);
}

.download-band .inner {
  position: relative;
  z-index: 2;
  max-width: 34rem;
}

.download-band h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.03em;
}

.download-band p {
  margin: 0.85rem 0 0;
  color: var(--fog);
}

.download-band .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.safe-note {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--mist);
}

.safe-note i {
  display: inline-block;
  width: 0.55rem;
  height: 0.55rem;
  margin-right: 0.4rem;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 4px rgba(94, 207, 154, 0.18);
}

/* Comments — interaction content */
.comments {
  display: grid;
  gap: 1rem;
}

.comment {
  display: grid;
  gap: 0.55rem;
  padding: 1.15rem 1.25rem;
  border-left: 3px solid transparent;
  border-image: linear-gradient(180deg, var(--blush), var(--nectar)) 1;
  background: rgba(255, 244, 236, 0.03);
}

.comment-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  align-items: baseline;
  color: var(--mist);
  font-size: 0.88rem;
}

.comment-meta .name {
  color: var(--cream);
  font-weight: 700;
}

.comment p {
  margin: 0;
  color: var(--fog);
  font-size: 0.98rem;
  line-height: 1.7;
}

/* FAQ */
.faq {
  display: grid;
  gap: 0.75rem;
  max-width: 760px;
}

.faq details {
  border-bottom: 1px solid var(--line);
  padding: 0.85rem 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  color: var(--peach);
  font-family: var(--font-display);
  font-size: 1.3rem;
  line-height: 1;
}

.faq details[open] summary::after {
  content: "–";
}

.faq details p {
  margin: 0.7rem 0 0.2rem;
  color: var(--mist);
}

/* Footer */
.footer {
  position: relative;
  z-index: 1;
  padding: 2.8rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--mist);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  gap: 1.25rem;
}

.footer-brand-block {
  max-width: 36rem;
}

.footer-brand-block p {
  margin: 0.75rem 0 0;
  line-height: 1.75;
}

.footer .brand span {
  font-size: 1rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links a:hover {
  color: var(--cream);
}

.footer-copy {
  margin: 0;
  padding-top: 0.5rem;
  border-top: 1px solid var(--line);
}

/* Responsive */
@media (max-width: 960px) {
  .promise-grid,
  .feature-stage,
  .about-grid,
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-device {
    display: none;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    padding: 6rem 0 3.5rem;
  }

  .hero-content {
    max-width: 34rem;
  }

  .hero-bg::after {
    opacity: 0.12;
    mask-image: linear-gradient(180deg, black 0%, transparent 70%);
    -webkit-mask-image: linear-gradient(180deg, black 0%, transparent 70%);
  }

  .shot-panel {
    width: min(100%, 320px);
  }
}

@media (max-width: 760px) {
  :root {
    --wrap: min(1120px, calc(100% - 1.5rem));
  }

  .menu-btn {
    display: grid;
  }

  .nav-links {
    position: fixed;
    inset: 4.25rem 0.75rem auto;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem;
    background: rgba(20, 12, 16, 0.94);
    border: 1px solid var(--line);
    border-radius: 16px;
    backdrop-filter: blur(16px);
    max-height: calc(100svh - 5rem);
    overflow: auto;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a,
  .nav-links .nav-cta {
    padding: 0.9rem 1rem;
    border-radius: 12px;
  }

  .nav-links .nav-cta {
    text-align: center;
    margin-top: 0.25rem;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid {
    padding: 5.5rem 0 2.75rem;
  }

  .hero h1 {
    font-size: clamp(3.6rem, 16vw, 5.2rem);
  }

  .hero-logo {
    width: 64px;
    height: 64px;
  }

  .poster-row {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-inline: auto;
  }

  .shot-panel {
    animation: none;
  }

  .promise-grid {
    gap: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

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