@charset "UTF-8";

:root {
  --bg: #eef5f4;
  --ink: #142024;
  --mute: #5d6d72;
  --teal: #1f8a7c;
  --teal-deep: #14665c;
  --sand: #f3e2c4;
  --coral: #e07a5f;
  --night: #163038;
  --cream: #fffaf3;
  --line: rgba(20, 32, 36, 0.12);
  --nav-shadow: 2px 2px 0 rgba(20, 32, 36, 0.28);
  --float: 10px 14px 0 rgba(31, 138, 124, 0.2);
  --header-h: 74px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--bg);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
}
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 80;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(238, 245, 244, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.header-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  height: var(--header-h);
  column-gap: 18px;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand img {
  width: 42px; height: 42px;
  object-fit: contain;
  background: #fff;
  box-shadow: var(--nav-shadow);
}
.brand-copy { display: grid; gap: 2px; line-height: 1.05; }
.brand-copy strong { font-size: 18px; }
.brand-copy small { color: var(--mute); font-size: 11px; font-weight: 800; letter-spacing: 0.12em; }
.site-nav {
  justify-self: center;
  display: flex;
  gap: 18px;
  font-size: 14px;
  font-weight: 800;
}
.site-nav a {
  position: relative;
  display: flex;
  align-items: center;
  height: var(--header-h);
  white-space: nowrap;
}
.site-nav a.is-active,
.site-nav a:hover { color: var(--teal-deep); }
.site-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 18px;
  height: 2px;
  background: var(--teal);
}
.header-download { justify-self: end; }
.header-download, .mobile-download, .btn-primary, .hero-search button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  color: #fff;
  background: var(--teal);
  font-weight: 800;
  font-size: 13px;
  box-shadow: var(--nav-shadow);
  white-space: nowrap;
}
.btn-primary { min-height: 52px; min-width: 168px; font-size: 15px; }
.btn-primary:hover, .hero-search button:hover { background: var(--teal-deep); }
.mobile-actions { display: none; align-items: center; gap: 8px; }
.menu-toggle {
  width: 42px; height: 42px;
  display: grid;
  gap: 5px;
  place-content: center;
  border: 1px solid var(--ink);
}
.menu-toggle span { display: block; width: 16px; height: 2px; background: var(--ink); }

.hero {
  position: relative;
  padding: 52px 0 72px;
  overflow: hidden;
  background:
    radial-gradient(circle at 85% 15%, rgba(31, 138, 124, 0.18), transparent 34%),
    radial-gradient(circle at 8% 80%, rgba(224, 122, 95, 0.12), transparent 30%),
    linear-gradient(135deg, #e7f2ef 0%, var(--bg) 45%, #f7efe3 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(115deg, transparent, transparent 16px, rgba(20, 32, 36, 0.03) 16px, rgba(20, 32, 36, 0.03) 17px);
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  gap: 32px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  color: var(--teal-deep);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}
.eyebrow span { width: 28px; height: 2px; background: currentColor; }
h1 {
  margin: 0;
  font-size: clamp(48px, 8vw, 84px);
  line-height: 0.95;
  letter-spacing: -0.04em;
}
.hero-slogan {
  margin: 14px 0 12px;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  line-height: 1.25;
}
.hero-intro { margin: 0 0 18px; color: var(--mute); max-width: 520px; }
.hero-search {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  margin-bottom: 18px;
  max-width: 520px;
  padding: 8px;
  background: rgba(255, 250, 243, 0.9);
  border: 1px solid var(--line);
  box-shadow: 6px 8px 0 rgba(20, 32, 36, 0.06);
}
.hero-search input {
  min-height: 44px;
  padding: 0 12px;
  border: 0;
  background: transparent;
  outline: none;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.text-link {
  font-weight: 800;
  color: var(--teal-deep);
  border-bottom: 2px solid rgba(31, 138, 124, 0.35);
}
.page-stamp { margin: 16px 0 0; color: var(--mute); font-size: 12px; }

.hero-device {
  position: relative;
  min-height: 460px;
  display: grid;
  place-items: center;
}
.phone-frame {
  position: relative;
  z-index: 2;
  width: 232px;
  padding: 12px 12px 16px;
  background: linear-gradient(165deg, #244650, #122228);
  border-radius: 34px;
  box-shadow: 0 22px 48px rgba(20, 32, 36, 0.22);
}
.phone-bar {
  width: 78px; height: 7px;
  margin: 0 auto 10px;
  border-radius: 999px;
  background: #35545c;
}
.phone-screen { overflow: hidden; border-radius: 22px; background: #fff; }
.phone-status {
  display: flex;
  justify-content: space-between;
  padding: 8px 12px 0;
  color: #607078;
  font-size: 10px;
  font-weight: 800;
}
.phone-screen img {
  width: 100%;
  height: auto;
  max-height: 390px;
  object-fit: cover;
}
.float-card {
  position: absolute;
  z-index: 3;
  padding: 12px 14px;
  background: var(--cream);
  border: 1px solid var(--line);
  box-shadow: var(--float);
  animation: floaty 4.6s ease-in-out infinite;
}
.float-card span {
  display: block;
  margin-bottom: 4px;
  color: var(--teal);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}
.float-card strong { display: block; font-size: 16px; }
.float-card small { color: var(--mute); }
.sync-card { top: 24px; left: 0; }
.eye-card {
  right: 0; bottom: 110px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: center;
  animation-delay: -1.2s;
}
.offline-card { left: 8px; bottom: 28px; animation-delay: -2.1s; width: 150px; }
.mini-bar {
  margin-top: 8px;
  height: 6px;
  border-radius: 999px;
  background: #dfe8e6;
  overflow: hidden;
}
.mini-bar i {
  display: block;
  width: 68%;
  height: 100%;
  background: linear-gradient(90deg, var(--teal), var(--coral));
}
.switch { position: relative; width: 42px; height: 24px; }
.switch input { position: absolute; opacity: 0; }
.switch i {
  display: block;
  width: 100%; height: 100%;
  border-radius: 999px;
  background: #cdd8d5;
}
.switch i::after {
  content: "";
  position: absolute;
  top: 3px; left: 3px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #fff;
  transition: 0.2s ease;
}
.switch input:checked + i { background: var(--teal); }
.switch input:checked + i::after { transform: translateX(18px); }

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

.section-heading { margin-bottom: 26px; }
.section-heading p {
  margin: 0 0 8px;
  color: var(--teal-deep);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}
.section-heading h2 {
  margin: 0 0 8px;
  font-size: clamp(28px, 4vw, 38px);
  letter-spacing: -0.03em;
}
.section-heading span { color: var(--mute); }
.section-heading.light p { color: #8fd4c8; }
.section-heading.light span { color: #a9c2c0; }

.section-dark {
  padding: 72px 0;
  background:
    radial-gradient(circle at 70% 0%, rgba(31, 138, 124, 0.22), transparent 34%),
    linear-gradient(180deg, #1a3036 0%, #122428 100%);
  color: #eef7f5;
}

.board-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.board {
  padding: 18px 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 8px 10px 0 rgba(0, 0, 0, 0.18);
}
.board.teal { background: linear-gradient(160deg, #1f8a7c, #14665c); }
.board.sand { background: linear-gradient(160deg, #f3e2c4, #e8d2a8); color: var(--ink); }
.board.coral { background: linear-gradient(160deg, #e07a5f, #c45d45); }
.board header {
  display: flex;
  gap: 10px;
  align-items: baseline;
  margin-bottom: 14px;
}
.board header span {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.12em;
  opacity: 0.8;
}
.board h3 { margin: 0; font-size: 22px; }
.board ol { display: grid; gap: 10px; }
.board li {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  gap: 8px;
  align-items: center;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.18);
}
.board.sand li { border-bottom-color: rgba(20, 32, 36, 0.12); }
.board b { font-size: 13px; opacity: 0.8; }
.board em { font-style: normal; font-size: 12px; font-weight: 800; }

.tools { padding: 72px 0; }
.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.tool-panel {
  padding: 20px;
  background: var(--cream);
  border: 1px solid var(--line);
  box-shadow: 0 16px 34px rgba(20, 32, 36, 0.06);
}
.tool-panel.accent {
  background: linear-gradient(160deg, #dff3ef, #fffaf3);
  box-shadow: var(--float);
}
.tool-panel header span {
  display: block;
  margin-bottom: 4px;
  color: var(--teal);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}
.tool-panel h3 { margin: 0 0 14px; font-size: 22px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.chip {
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid var(--line);
  font-weight: 800;
  font-size: 13px;
  background: #fff;
}
.chip.is-on, .chip:hover {
  background: var(--teal);
  border-color: var(--teal);
  color: #fff;
}
.tool-note { margin: 0; color: var(--mute); font-size: 14px; }
.sync-meter {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 14px;
}
.ring {
  width: 54px; height: 54px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, #fffaf3 58%, transparent 59%),
    conic-gradient(var(--teal) 0 78%, #d5e4e1 78%);
  font-size: 12px;
  font-weight: 900;
  color: var(--teal-deep);
}
.sync-meter strong { display: block; }
.sync-meter small { color: var(--mute); }
.ghost {
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid var(--teal);
  color: var(--teal-deep);
  font-weight: 800;
}
.swatch-row { display: flex; gap: 10px; margin-bottom: 12px; }
.swatch-row button {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--c);
  border: 2px solid transparent;
  box-shadow: inset 0 0 0 1px rgba(20, 32, 36, 0.15);
}
.swatch-row button.is-on { border-color: var(--teal); transform: scale(1.08); }

.showcase { padding: 72px 0; }
.spread-board {
  display: grid;
  grid-template-columns: minmax(240px, 1.1fr) minmax(280px, 0.9fr);
  gap: 22px;
  align-items: stretch;
}
.spread-main {
  margin: 0;
  padding: 20px;
  background:
    linear-gradient(160deg, rgba(143, 212, 200, 0.16), transparent 40%),
    #10262c;
  border: 1px solid rgba(143, 212, 200, 0.28);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.28);
}
.spread-main .frame,
.spread-stack .frame {
  padding: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.spread-main img {
  width: 100%;
  max-width: 260px;
  margin: 0 auto;
  height: auto;
  max-height: 520px;
  object-fit: contain;
}
.spread-main figcaption {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: 16px;
}
.spread-main figcaption b,
.spread-stack figcaption b {
  color: #8fd4c8;
  font-size: 1.1rem;
}
.spread-main strong { display: block; }
.spread-main span { color: #a9c4bf; font-size: 14px; }
.spread-stack {
  display: grid;
  gap: 12px;
}
.spread-stack figure {
  margin: 0;
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 14px;
  align-items: center;
  padding: 10px 12px;
  background: rgba(16, 38, 44, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 8px 10px 0 rgba(224, 122, 95, 0.18);
  transition: transform 0.22s ease;
}
.spread-stack figure:hover { transform: translateX(-6px); }
.spread-stack img {
  width: 100%;
  height: auto;
  max-height: 140px;
  object-fit: contain;
}
.spread-stack figcaption {
  display: flex;
  gap: 8px;
  font-weight: 800;
}

.faq { padding: 72px 0; background: #e4efed; }
.faq-wall {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.faq-wall article {
  padding: 20px 18px;
  background: #fffaf3;
  border: 1px solid var(--line);
  box-shadow: 0 14px 28px rgba(20, 32, 36, 0.06);
  position: relative;
}
.faq-wall article:nth-child(even) {
  background: #fff;
  border-bottom: 4px solid var(--coral);
}
.faq-wall article:nth-child(odd) {
  border-bottom: 4px solid var(--teal);
}
.faq-wall span {
  display: inline-block;
  margin-bottom: 8px;
  padding: 2px 8px;
  background: var(--night);
  color: #8fd4c8;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.06em;
}
.faq-wall h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
}
.faq-wall p {
  margin: 0;
  color: var(--mute);
  font-size: 0.95rem;
}

.reviews { padding: 72px 0 40px; background: linear-gradient(180deg, #f7f1e7, #eef5f4); }
.chat-thread {
  display: grid;
  gap: 16px;
  max-width: 860px;
  margin: 0 auto;
}
.chat-thread article { display: flex; }
.chat-thread .from-left { justify-content: flex-start; }
.chat-thread .from-right { justify-content: flex-end; }
.chat-thread .bubble {
  width: min(100%, 520px);
  padding: 16px 18px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 12px 26px rgba(20, 32, 36, 0.07);
  position: relative;
}
.chat-thread .from-left .bubble {
  border-radius: 4px 18px 18px 18px;
  border-left: 4px solid var(--teal);
}
.chat-thread .from-right .bubble {
  border-radius: 18px 4px 18px 18px;
  border-right: 4px solid var(--coral);
  background: #fffaf3;
}
.chat-thread time {
  display: block;
  margin-bottom: 8px;
  color: var(--teal-deep);
  font-size: 12px;
  font-weight: 800;
}
.chat-thread .from-right time { color: #b85a42; text-align: right; }
.chat-thread p { margin: 0 0 10px; }
.chat-thread .from-right p { text-align: right; }
.chat-thread span {
  display: block;
  font-size: 13px;
  font-weight: 800;
  color: var(--mute);
}
.chat-thread .from-right span { text-align: right; }

.download { padding: 20px 0 72px; }
.download-ticket {
  display: grid;
  grid-template-columns: 110px 1fr;
  overflow: hidden;
  border: 2px solid var(--ink);
  background: #fffaf3;
  box-shadow: 0 18px 0 rgba(31, 138, 124, 0.2);
}
.ticket-stub {
  display: grid;
  place-content: center;
  gap: 6px;
  text-align: center;
  color: #fff;
  background:
    repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.08) 8px, transparent 8px, transparent 16px),
    linear-gradient(180deg, var(--teal), var(--teal-deep));
  border-right: 2px dashed rgba(255, 255, 255, 0.45);
}
.ticket-stub span {
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: 0.14em;
}
.ticket-stub small {
  font-size: 12px;
  font-weight: 800;
  opacity: 0.85;
}
.ticket-body {
  padding: 28px 26px;
  background:
    radial-gradient(circle at 100% 0%, rgba(224, 122, 95, 0.18), transparent 40%),
    #fffaf3;
}
.ticket-body h2 { margin: 8px 0 8px; }
.ticket-body p { margin: 0 0 16px; color: var(--mute); max-width: 46ch; }
.ticket-body .btn-primary { background: var(--night); }

.site-footer {
  padding: 34px 0 18px;
  background: #0d171a;
  color: #dceae7;
}
.footer-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: flex-end;
  font-size: 13px;
  font-weight: 800;
}
.footer-nav a:hover { color: #8fd4c8; }
.copyright {
  width: min(1160px, calc(100% - 40px));
  margin: 14px auto 0;
  color: #7f9693;
  font-size: 12px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 96px;
  z-index: 60;
  transform: translateX(-50%);
  padding: 10px 16px;
  color: #fff;
  background: var(--night);
  font-size: 13px;
  font-weight: 800;
  box-shadow: var(--nav-shadow);
}
.toast[hidden] { display: none; }

.back-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 55;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  visibility: hidden;
  opacity: 0;
  background: var(--teal);
  box-shadow: var(--nav-shadow);
  transition: opacity 0.2s ease;
}
.back-top::before {
  content: "";
  width: 12px;
  height: 12px;
  border-left: 2px solid #fff;
  border-top: 2px solid #fff;
  transform: translateY(3px) rotate(45deg);
}
.back-top.is-visible { visibility: visible; opacity: 1; }

@media (max-width: 980px) {
  .header-inner { grid-template-columns: 1fr auto; }
  .header-download { display: none; }
  .mobile-actions { display: flex; }
  .site-nav {
    position: fixed;
    top: var(--header-h);
    right: 0; left: 0;
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 8px 18px 16px;
    background: #fffaf3;
    border-bottom: 1px solid var(--line);
    justify-self: stretch;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a {
    height: auto;
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
  }
  .site-nav a.is-active::after { display: none; }
  .hero-grid { display: flex; flex-direction: column; gap: 32px; }
  .hero-copy { text-align: center; }
  .hero-intro, .hero-search { margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .hero-device { min-height: 420px; }
  .float-card { animation: none; }
  .board-grid, .tool-grid, .spread-board, .faq-wall, .download-ticket, .footer-row {
    grid-template-columns: 1fr;
  }
  .spread-stack figure { grid-template-columns: 80px 1fr; }
  .spread-stack figure:hover { transform: none; }
  .chat-thread .from-right { justify-content: flex-start; }
  .chat-thread .from-right .bubble {
    border-radius: 4px 18px 18px 18px;
    border-right: 0;
    border-left: 4px solid var(--coral);
  }
  .chat-thread .from-right time,
  .chat-thread .from-right p,
  .chat-thread .from-right span { text-align: left; }
  .btn-primary { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .float-card, .spread-stack figure { animation: none; transition: none; }
}