:root {
  --bg: #fff9fc;
  --surface: #ffffff;
  --pink-soft: #fff1f6;
  --purple-soft: #f6f3ff;
  --gray-soft: #f8f6f7;
  --text: #31262c;
  --body: #51454c;
  --muted: #7c6e75;
  --light: #a2949b;
  --pink: #ff5c98;
  --berry: #d9467b;
  --peach: #ff96ad;
  --purple: #8b74e8;
  --deep-purple: #6250b0;
  --border: rgba(255, 92, 152, 0.15);
  --shadow: 0 14px 38px rgba(70, 44, 58, 0.08);
  --shadow-strong: 0 20px 48px rgba(217, 70, 123, 0.14);
  --gradient: linear-gradient(135deg, #ff96ad 0%, #ff5c98 50%, #8b74e8 100%);
  --max: 1220px;
  --header-h: 78px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--body);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.75;
  overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(139, 116, 232, 0.4);
  outline-offset: 3px;
}
button { font: inherit; }
img { display: block; max-width: 100%; height: auto; }
.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 9999;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--text);
  color: #fff;
}
.skip-link:focus { top: 12px; }

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 900;
  height: var(--header-h);
  background: rgba(255, 249, 252, 0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(18px);
}
.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 26px;
  width: min(100%, var(--max));
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
}
.desktop-nav { display: flex; align-items: center; gap: 20px; min-width: 0; }
.nav-left { justify-content: flex-end; }
.nav-right { justify-content: flex-start; }
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
}
.nav-link::after {
  content: "";
  position: absolute;
  right: 50%;
  bottom: 4px;
  left: 50%;
  height: 2px;
  border-radius: 2px;
  background: var(--gradient);
  transition: 0.2s ease;
}
.nav-link:hover,
.nav-link.is-active { color: var(--berry); }
.nav-link:hover::after,
.nav-link.is-active::after { right: 0; left: 0; }
.brand {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 178px;
  min-height: 52px;
}
.brand img { object-fit: contain; }
.brand-text {
  color: var(--text);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.menu-circle {
  display: inline-flex;
  flex: 0 0 auto;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  gap: 4px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  box-shadow: 0 8px 24px rgba(70, 44, 58, 0.06);
  cursor: pointer;
}
.menu-circle span {
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  pointer-events: none;
}
.mobile-actions { display: none; align-items: center; gap: 10px; }
.mobile-experience {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 17px;
  border-radius: 999px;
  background: var(--gradient);
  color: #fff;
  font-weight: 700;
}

main { padding-top: var(--header-h); }
.container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.section { padding: 82px 0; }
.section-sm { padding: 54px 0; }
.section-tint { background: var(--pink-soft); }
.section-purple { background: var(--purple-soft); }
.section-white { background: var(--surface); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--berry);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  border-radius: 2px;
  background: var(--gradient);
}
h1, h2, h3, h4 { margin-top: 0; color: var(--text); line-height: 1.28; }
h1 { margin-bottom: 22px; font-size: clamp(36px, 6vw, 70px); letter-spacing: -0.04em; }
h2 { margin-bottom: 18px; font-size: clamp(28px, 4vw, 46px); letter-spacing: -0.025em; }
h3 { margin-bottom: 10px; font-size: 21px; }
p { margin-top: 0; }
.lead { max-width: 760px; color: var(--muted); font-size: clamp(17px, 2vw, 20px); }
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 34px;
}
.section-head p { max-width: 650px; margin: 0; color: var(--muted); }
.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  gap: 8px;
  color: var(--berry);
  font-weight: 750;
}
.text-link::after { content: "→"; transition: transform 0.2s ease; }
.text-link:hover::after { transform: translateX(4px); }
.button-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 800;
  white-space: nowrap;
}
.btn-primary { background: var(--gradient); box-shadow: 0 13px 30px rgba(217, 70, 123, 0.22); color: #fff; }
.btn-secondary { border: 1px solid var(--border); background: #fff; color: var(--berry); }

.hero { position: relative; overflow: hidden; padding: 92px 0 54px; }
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(4px);
  pointer-events: none;
}
.hero::before { top: -120px; left: -120px; width: 360px; height: 360px; background: rgba(255, 150, 173, 0.2); }
.hero::after { right: -170px; bottom: -210px; width: 430px; height: 430px; background: rgba(139, 116, 232, 0.14); }
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 0.72fr 1.7fr 0.72fr;
  align-items: center;
  gap: 38px;
}
.hero-side {
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
}
.hero-center { text-align: center; }
.hero-center .lead { margin-right: auto; margin-left: auto; }
.hero-center .button-row { justify-content: center; }
.hero-visual,
.visual-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 28px;
  background: linear-gradient(135deg, #ffe8f0, #fff, #eeeaff);
  box-shadow: var(--shadow-strong);
}
.hero-visual { min-height: 330px; margin-top: 48px; }
.hero-visual::before {
  content: "";
  position: absolute;
  inset: 8% 8% auto auto;
  width: 42%;
  aspect-ratio: 1;
  border-radius: 32% 68% 66% 34% / 34% 35% 65% 66%;
  background: var(--gradient);
  opacity: 0.82;
  transform: rotate(9deg);
}
.hero-visual::after {
  content: "生活 · 影像 · 兴趣";
  position: absolute;
  bottom: 16%;
  left: 8%;
  color: rgba(49, 38, 44, 0.84);
  font-size: clamp(28px, 5vw, 64px);
  font-weight: 900;
  letter-spacing: 0.06em;
}
.floating-note {
  position: absolute;
  right: 10%;
  bottom: 14%;
  max-width: 290px;
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow);
}

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.grid-6 { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; }
.card {
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.card p:last-child { margin-bottom: 0; }
.card-number {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 20px;
  border-radius: 14px;
  background: var(--pink-soft);
  color: var(--berry);
  font-weight: 900;
}
.index-card { display: flex; flex-direction: column; min-height: 190px; }
.index-card .text-link { margin-top: auto; }
.feature-layout { display: grid; grid-template-columns: 1.15fr 0.85fr; align-items: stretch; gap: 28px; }
.feature-main {
  padding: 36px;
  border-radius: 28px;
  background: var(--gradient);
  box-shadow: var(--shadow-strong);
  color: #fff;
}
.feature-main h3,
.feature-main .text-link { color: #fff; }
.feature-main .tag { border-color: rgba(255, 255, 255, 0.4); color: #fff; }
.story-list { display: grid; gap: 16px; }
.story-item { padding: 22px; border: 1px solid var(--border); border-radius: 20px; background: #fff; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0; }
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--berry);
  font-size: 12px;
  font-weight: 700;
}
.media-card { overflow: hidden; padding: 0; }
.media-thumb { position: relative; overflow: hidden; aspect-ratio: 4 / 3; background: linear-gradient(135deg, #fff0f5, #efeaff); }
.media-thumb::before,
.media-thumb::after { content: ""; position: absolute; border-radius: 50%; }
.media-thumb::before { top: -20%; right: -12%; width: 64%; aspect-ratio: 1; background: var(--gradient); opacity: 0.72; }
.media-thumb::after { bottom: -14%; left: 10%; width: 42%; aspect-ratio: 1; background: rgba(255, 255, 255, 0.74); box-shadow: 0 0 0 26px rgba(255, 255, 255, 0.18); }
.card-body { padding: 24px; }
.interest-chip { min-height: 130px; padding: 22px; border: 1px solid var(--border); border-radius: 20px; background: #fff; }
.topic-row {
  display: grid;
  grid-template-columns: 58px 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
}
.topic-row:last-child { border-bottom: 0; }
.topic-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 18px;
  background: var(--purple-soft);
  color: var(--deep-purple);
  font-weight: 900;
}
.journal-paper {
  position: relative;
  padding: 44px;
  border-radius: 28px;
  background: repeating-linear-gradient(to bottom, #fff 0, #fff 35px, rgba(255, 92, 152, 0.1) 36px);
  box-shadow: var(--shadow);
}
.journal-paper::before { content: ""; position: absolute; top: 0; bottom: 0; left: 30px; width: 1px; background: rgba(217, 70, 123, 0.18); }
.app-showcase { display: grid; grid-template-columns: 1.2fr 0.8fr; align-items: center; gap: 42px; }
.phone-mock {
  width: min(330px, 100%);
  aspect-ratio: 0.56;
  margin: 0 auto;
  padding: 24px 16px;
  border: 10px solid #31262c;
  border-radius: 44px;
  background: linear-gradient(160deg, #fff, #fff1f6 45%, #eeeaff);
  box-shadow: 0 30px 70px rgba(49, 38, 44, 0.18);
}
.phone-notch { width: 42%; height: 20px; margin: -10px auto 24px; border-radius: 0 0 14px 14px; background: #31262c; }
.phone-stage { display: flex; align-items: center; justify-content: center; min-height: 520px; }
.phone-screen { min-height: 390px; border: 1px solid var(--border); border-radius: 24px; background: linear-gradient(150deg, #fff0f5, #ffffff 48%, #eeeaff); }
.phone-block { height: 72px; margin-bottom: 14px; border: 1px solid var(--border); border-radius: 18px; background: rgba(255, 255, 255, 0.82); }
.phone-block.large { height: 150px; background: var(--gradient); opacity: 0.88; }
.principle { display: grid; grid-template-columns: 54px 1fr; align-items: start; gap: 18px; }
.principle-badge { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 16px; background: var(--pink-soft); color: var(--berry); font-weight: 900; }
.quote-card { position: relative; padding-top: 50px; }
.quote-card::before { content: "“"; position: absolute; top: 6px; left: 22px; color: rgba(217, 70, 123, 0.22); font-size: 70px; font-weight: 900; line-height: 1; }

.page-hero { padding: 74px 0 52px; background: linear-gradient(180deg, var(--pink-soft), var(--bg)); }
.page-hero-inner { display: grid; grid-template-columns: 1.2fr 0.8fr; align-items: center; gap: 44px; }
.page-hero h1 { font-size: clamp(38px, 6vw, 66px); }
.page-visual { min-height: 290px; }
.page-visual::before {
  content: "";
  position: absolute;
  top: -15%;
  right: -8%;
  width: 62%;
  aspect-ratio: 1;
  border-radius: 26% 74% 55% 45% / 46% 35% 65% 54%;
  background: var(--gradient);
  opacity: 0.78;
  transform: rotate(14deg);
}
.page-visual::after {
  content: "";
  position: absolute;
  bottom: -12%;
  left: 10%;
  width: 44%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.74);
  box-shadow: 0 0 0 30px rgba(255, 255, 255, 0.18);
}
.prose { max-width: 850px; }
.prose p { margin-bottom: 18px; }
.split { display: grid; grid-template-columns: 0.8fr 1.2fr; align-items: start; gap: 36px; }
.sticky-aside { position: sticky; top: 106px; }
.mini-nav { display: grid; gap: 8px; }
.mini-nav a { display: flex; align-items: center; min-height: 44px; padding: 0 14px; border: 1px solid var(--border); border-radius: 12px; background: #fff; color: var(--muted); }
.mini-nav a:hover { border-color: rgba(217, 70, 123, 0.3); color: var(--berry); }
.info-strip { padding: 24px 28px; border: 1px solid rgba(139, 116, 232, 0.14); border-radius: 20px; background: var(--purple-soft); }
.steps { display: grid; gap: 16px; counter-reset: step; }
.step { display: grid; grid-template-columns: 52px 1fr; align-items: start; gap: 18px; counter-increment: step; }
.step::before { content: counter(step); display: grid; place-items: center; width: 46px; height: 46px; border-radius: 15px; background: var(--gradient); color: #fff; font-weight: 900; }
.notice-list { display: grid; gap: 14px; }
.notice-item { display: grid; grid-template-columns: 120px 1fr; gap: 20px; padding: 22px; border: 1px solid var(--border); border-radius: 18px; background: #fff; }
.notice-item time { color: var(--berry); font-weight: 800; }

details { padding: 0 22px; border: 1px solid var(--border); border-radius: 18px; background: #fff; box-shadow: 0 8px 26px rgba(70, 44, 58, 0.05); }
details + details { margin-top: 12px; }
summary { display: flex; align-items: center; justify-content: space-between; min-height: 64px; gap: 16px; color: var(--text); font-weight: 800; cursor: pointer; }
summary::after { content: "+"; color: var(--pink); font-size: 24px; }
details[open] summary::after { content: "−"; }
details p { padding-bottom: 20px; color: var(--muted); }

.site-footer { padding: 64px 0 34px; background: #30252b; color: #ffeaf2; }
.footer-inner { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.footer-brand { display: grid; grid-template-columns: 0.55fr 1fr; align-items: end; gap: 30px; padding-bottom: 34px; border-bottom: 1px solid rgba(255, 234, 242, 0.14); }
.footer-logo { font-size: 30px; font-weight: 900; }
.footer-brand p { max-width: 640px; margin: 0; color: rgba(255, 234, 242, 0.72); }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; padding: 38px 0; }
.footer-grid h2 { margin-bottom: 14px; color: #fff; font-size: 16px; }
.footer-grid a { display: block; min-height: 36px; color: rgba(255, 234, 242, 0.74); }
.footer-grid a:hover { color: #fff; }
.footer-note { display: flex; justify-content: space-between; gap: 24px; padding-top: 24px; border-top: 1px solid rgba(255, 234, 242, 0.14); color: rgba(255, 234, 242, 0.62); font-size: 13px; }
.footer-note p { margin: 0; }

.overlay {
  position: fixed;
  inset: 0;
  z-index: 950;
  background: rgba(49, 38, 44, 0.34);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.22s ease, visibility 0.22s ease;
}
.overlay.is-visible { opacity: 1; visibility: visible; pointer-events: auto; }
.channel-panel {
  position: fixed;
  top: var(--header-h);
  right: 0;
  left: 0;
  z-index: 980;
  max-height: calc(100vh - var(--header-h));
  overflow-y: auto;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-strong);
  transform: translateY(-115%);
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.28s ease, visibility 0.28s ease;
}
.channel-panel.is-open { transform: translateY(0); visibility: visible; pointer-events: auto; }
.channel-panel-inner { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; padding: 28px 0 40px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 24px; }
.panel-head h2 { margin-bottom: 0; font-size: 28px; }
.panel-close { width: 44px; height: 44px; border: 1px solid var(--border); border-radius: 50%; background: #fff; color: var(--text); font-size: 28px; line-height: 1; cursor: pointer; }
.channel-columns { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.channel-columns section { padding: 20px; border: 1px solid var(--border); border-radius: 20px; background: var(--bg); }
.channel-columns h3 { color: var(--berry); font-size: 16px; }
.channel-columns a { display: block; padding: 12px 0; border-bottom: 1px solid var(--border); }
.channel-columns a:last-child { border-bottom: 0; }
.channel-columns strong,
.channel-columns span { display: block; }
.channel-columns strong { color: var(--text); font-size: 14px; }
.channel-columns span { margin-top: 3px; color: var(--muted); font-size: 12px; line-height: 1.55; }
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 990;
  width: min(88vw, 390px);
  overflow-y: auto;
  background: #fff;
  box-shadow: -20px 0 50px rgba(49, 38, 44, 0.15);
  transform: translateX(110%);
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.28s ease, visibility 0.28s ease;
}
.mobile-drawer.is-open { transform: translateX(0); visibility: visible; pointer-events: auto; }
.mobile-drawer-head { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 18px 14px; border-bottom: 1px solid var(--border); background: rgba(255, 255, 255, 0.96); }
.mobile-drawer nav { display: grid; padding: 10px 18px 28px; }
.mobile-drawer nav a { display: flex; align-items: center; min-height: 48px; border-bottom: 1px solid var(--border); color: var(--text); }
.mobile-bottom-nav { display: none; }

@media (max-width: 1100px) {
  .header-inner { gap: 14px; }
  .desktop-nav { gap: 12px; }
  .nav-link { font-size: 13px; }
  .brand { min-width: 150px; }
  .grid-6 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 820px) {
  :root { --header-h: 68px; }
  .header-inner { display: flex; justify-content: space-between; padding: 0 16px; }
  .desktop-nav { display: none; }
  .brand { min-width: 0; justify-content: flex-start; }
  .brand img { width: 148px; }
  .brand-text { font-size: 21px; }
  .mobile-actions { display: flex; }
  .container,
  .footer-inner { width: min(100% - 32px, var(--max)); }
  .section { padding: 62px 0; }
  .hero { padding: 62px 0 42px; }
  .hero-grid { grid-template-columns: 1fr; gap: 18px; }
  .hero-center { order: -1; }
  .hero-side { padding: 20px; }
  .hero-visual { min-height: 270px; margin-top: 30px; }
  .hero-visual::after { bottom: 14%; left: 7%; }
  .floating-note { right: 6%; bottom: 8%; max-width: 220px; font-size: 13px; }
  .grid-3,
  .grid-2,
  .feature-layout,
  .app-showcase,
  .page-hero-inner,
  .split { grid-template-columns: 1fr; }
  .grid-6 { grid-template-columns: repeat(2, 1fr); }
  .section-head { display: block; }
  .section-head .text-link { margin-top: 12px; }
  .sticky-aside { position: static; }
  .page-hero { padding-top: 58px; }
  .page-visual { min-height: 230px; }
  .phone-stage { min-height: 0; }
  .app-showcase > .phone-mock { order: 2; }
  .channel-panel,
  .channel-overlay { display: none; }
  .footer-brand { grid-template-columns: 1fr; align-items: start; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-note { display: block; padding-bottom: 70px; }
  .footer-note p + p { margin-top: 10px; }
  .mobile-bottom-nav {
    position: fixed;
    right: 10px;
    bottom: max(10px, env(safe-area-inset-bottom));
    left: 10px;
    z-index: 880;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    min-height: 62px;
    padding: 5px;
    border: 1px solid var(--border);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 14px 42px rgba(49, 38, 44, 0.15);
    backdrop-filter: blur(16px);
  }
  .mobile-bottom-nav a { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 52px; gap: 1px; border-radius: 17px; color: var(--muted); font-size: 11px; }
  .mobile-bottom-nav a.is-active { background: var(--pink-soft); color: var(--berry); }
  .mini-icon { font-size: 18px; line-height: 1; }
  .site-footer { padding-bottom: 90px; }
}

@media (max-width: 560px) {
  .grid-4,
  .grid-6 { grid-template-columns: 1fr; }
  .hero-visual { min-height: 240px; }
  .floating-note { display: none; }
  .card,
  .feature-main,
  .journal-paper { padding: 22px; }
  .topic-row { grid-template-columns: 48px 1fr; }
  .topic-row .text-link { grid-column: 2; }
  .notice-item { grid-template-columns: 1fr; gap: 5px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}