@charset "UTF-8";

:root {
  --ink: #2d1c0b;
  --muted: #796750;
  --subtle: #a18c75;
  --paper: #fffdf9;
  --cream: #fff6e5;
  --line: #f0e2cb;
  --accent: #f6a400;
  --accent-deep: #dd7900;
  --dark: #24170c;
  --shadow: 0 18px 45px rgba(112, 67, 14, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a {
  -webkit-tap-highlight-color: transparent;
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
}

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

.container {
  width: min(1200px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 253, 249, 0.9);
  border-bottom: 1px solid rgba(240, 226, 203, 0.75);
  backdrop-filter: blur(18px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  height: 78px;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 20px;
  font-weight: 800;
  white-space: nowrap;
}

.brand img {
  width: 43px;
  height: 43px;
  object-fit: contain;
}

.main-nav {
  margin-left: auto;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 32px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-link {
  font-size: 14px;
  color: var(--muted);
  transition: color 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-deep);
}

.header-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 15px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 8px 20px rgba(246, 164, 0, 0.22);
}

.menu-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 8px;
  cursor: pointer;
}

.section-shell {
  position: relative;
  overflow: hidden;
}

.hero {
  background: linear-gradient(135deg, #fff9ec 0%, #ffe6ae 56%, #ffc85b 100%);
}

.hero:after {
  content: "";
  position: absolute;
  width: 240px;
  height: 240px;
  right: 5%;
  top: 130px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 50%;
  box-shadow: 0 0 0 28px rgba(255, 255, 255, 0.13), 0 0 0 58px rgba(255, 255, 255, 0.1);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 56px;
  align-items: center;
  min-height: 650px;
  padding: 76px 0;
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-deep);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.eyebrow:before {
  content: "";
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(50px, 6vw, 74px);
  line-height: 1.08;
  letter-spacing: 0.01em;
}

.hero-lead {
  max-width: 500px;
  margin-bottom: 18px;
  font-size: 30px;
  font-weight: 800;
  line-height: 1.4;
}

.hero-text {
  max-width: 570px;
  margin-bottom: 32px;
  color: #755c3b;
  font-size: 17px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 15px;
  font-size: 15px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.button-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 12px 24px rgba(221, 121, 0, 0.2);
}

.button-primary:hover {
  background: var(--accent-deep);
}

.button-secondary {
  border-color: #e6c989;
  background: rgba(255, 255, 255, 0.75);
  color: var(--ink);
}

.button-dark {
  background: var(--dark);
  color: #fff;
}

.button-wide {
  width: 100%;
}

.stats {
  display: flex;
  gap: 38px;
  margin-top: 52px;
}

.stats div {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.stats strong {
  font-size: 30px;
}

.stats span {
  color: #8e775f;
  font-size: 13px;
}

.hero-showcase {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  min-height: 470px;
}

.device-card {
  position: relative;
  width: 285px;
  height: 500px;
  padding: 12px;
  border-radius: 40px;
  background: #2b1d13;
  box-shadow: 28px 28px 0 rgba(177, 103, 4, 0.13), var(--shadow);
  transform: rotate(5deg);
}

.device-screen {
  height: 100%;
  padding: 27px 17px 18px;
  border-radius: 31px;
  background: #fff9ee;
  overflow: hidden;
}

.screen-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.screen-bar span {
  width: 76px;
  height: 8px;
  border-radius: 8px;
  background: #ffe3a4;
}

.screen-title {
  margin: 29px 0 18px;
  font-size: 24px;
  font-weight: 800;
}

.screen-highlight {
  height: 100px;
  margin-bottom: 16px;
  border-radius: 17px;
  background: linear-gradient(135deg, #ffd166, #ff9f1c);
}

.screen-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid #f1e4d2;
}

.screen-row img {
  width: 44px;
  height: 51px;
  object-fit: cover;
  border-radius: 8px;
}

.screen-row span {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.screen-row b {
  font-size: 12px;
}

.screen-row small {
  overflow: hidden;
  color: #a28d75;
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.screen-row .icon {
  width: 16px;
  height: 16px;
}

.device-home {
  position: absolute;
  bottom: 7px;
  left: 50%;
  width: 80px;
  height: 4px;
  border-radius: 5px;
  background: #a99584;
  transform: translateX(-50%);
}

.showcase-note {
  position: absolute;
  right: 0;
  bottom: 49px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 23px;
  border-radius: 18px;
  background: #fffdf7;
  box-shadow: var(--shadow);
  transform: rotate(-4deg);
}

.showcase-note b {
  font-size: 18px;
}

.showcase-note span {
  color: var(--subtle);
  font-size: 12px;
}

.showcase-tag {
  position: absolute;
  top: 52px;
  right: 33px;
  padding: 10px 14px;
  border-radius: 13px;
  background: var(--dark);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  transform: rotate(8deg);
}

.section {
  padding: 105px 0;
}

.section-white {
  background: #fff;
}

.section-cream {
  background: var(--cream);
}

.section-heading {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 48px;
}

.section-heading.align-left {
  text-align: left;
  margin-left: 0;
}

.section-heading h2 {
  margin: 14px 0;
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.25;
}

.section-heading p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

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

.feature-card {
  padding: 30px 28px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(71, 40, 4, 0.045);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  margin-bottom: 25px;
  border-radius: 50%;
  background: #fff0c7;
  color: var(--accent-deep);
}

.feature-card h3 {
  margin-bottom: 12px;
  font-size: 21px;
}

.feature-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.split-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 70px;
  align-items: center;
}

.updates-panel {
  border-radius: 22px;
  background: #fff;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 21px 25px;
  background: var(--accent);
  color: #fff;
}

.panel-head strong {
  font-size: 18px;
}

.panel-head span {
  font-size: 12px;
}

.update-item {
  display: flex;
  align-items: center;
  gap: 17px;
  padding: 19px 25px;
  border-bottom: 1px solid #f3eadc;
}

.update-item:last-child {
  border-bottom: 0;
}

.update-item img {
  width: 70px;
  height: 70px;
  object-fit: cover;
  border-radius: 13px;
}

.update-item span {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 8px;
}

.update-item b {
  font-size: 16px;
}

.update-item small {
  color: var(--subtle);
  font-size: 13px;
}

.update-item em {
  padding: 6px 9px;
  border-radius: 8px;
  background: #fff0c7;
  color: var(--accent-deep);
  font-size: 10px;
  font-style: normal;
  font-weight: 800;
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 10px;
}

.shot-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(71, 40, 4, 0.045);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.shot-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.shot-card img {
  width: 100%;
  aspect-ratio: 4 / 7;
  object-fit: cover;
  border-radius: 14px;
  background: #fff6e5;
}

.shot-card span {
  font-size: 14px;
  font-weight: 700;
  text-align: center;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  max-width: 860px;
  margin: 0 auto;
}

.download-card {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(71, 40, 4, 0.045);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.download-card:hover,
.download-card.active {
  border-color: #f1bb4e;
  box-shadow: var(--shadow);
}

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

.download-card-top {
  display: flex;
  align-items: center;
  gap: 15px;
}

.platform-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 17px;
  background: #fff1cf;
}

.download-card h3 {
  margin-bottom: 6px;
  font-size: 21px;
}

.download-card p {
  margin-bottom: 0;
  color: var(--subtle);
  font-size: 13px;
}

.recommended {
  margin-left: auto;
  padding: 6px 9px;
  border-radius: 8px;
  background: #fff1cf;
  color: var(--accent-deep);
  font-size: 11px;
  font-weight: 800;
}

.download-list {
  display: grid;
  gap: 10px;
  margin: 26px 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.download-list li:before {
  content: "✓";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 19px;
  height: 19px;
  margin-right: 8px;
  border-radius: 50%;
  background: #fff1cf;
  color: var(--accent-deep);
  font-size: 11px;
  font-weight: 800;
}

.download-tip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 25px auto 0;
  color: var(--subtle);
  font-size: 13px;
}

.faq-wrap {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.faq-list {
  display: grid;
  gap: 13px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  overflow: hidden;
}

.faq-item button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 21px 23px;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
}

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.25s ease;
}

.faq-answer p {
  overflow: hidden;
  margin: 0;
  padding: 0 23px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.faq-item.is-open .faq-answer {
  grid-template-rows: 1fr;
}

.faq-item.is-open .faq-answer p {
  padding-bottom: 22px;
}

.faq-item.is-open .icon-chevron {
  transform: rotate(180deg);
}

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

.review-card {
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
}

.review-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 37px;
  height: 37px;
  border-radius: 50%;
  background: #fff0c7;
  color: var(--accent-deep);
  font-weight: 800;
}

.review-meta b {
  font-size: 14px;
}

.stars {
  margin-left: auto;
  color: #ef9a00;
  font-size: 12px;
  letter-spacing: 2px;
}

.review-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.site-footer {
  padding: 60px 0 24px;
  background: var(--dark);
  color: #fff5e6;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 35px;
}

.footer-brand {
  margin-bottom: 17px;
}

.footer-grid p,
.footer-grid a {
  display: block;
  color: #cdb697;
  font-size: 13px;
  line-height: 2;
}

.footer-grid h3 {
  margin-bottom: 12px;
  font-size: 15px;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  margin-top: 50px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 245, 230, 0.12);
  color: #927b5e;
  font-size: 12px;
}

.back-top {
  position: fixed;
  right: 26px;
  bottom: 25px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 22px rgba(221, 121, 0, 0.25);
}

.icon {
  display: inline-block;
  width: 20px;
  height: 20px;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  vertical-align: middle;
}

.icon-android {
  background-image: url("../icons/android.svg");
}

.icon-apple {
  background-image: url("../icons/apple.svg");
}

.icon-download:before {
  content: "↓";
  font-size: 20px;
  font-weight: 900;
}

.icon-arrow:before {
  content: "→";
  font-size: 18px;
}

.icon-menu:before {
  content: "☰";
  font-size: 22px;
}

.icon-more:before {
  content: "•••";
  font-size: 15px;
  letter-spacing: 2px;
}

.icon-offline:before {
  content: "◉";
  font-size: 22px;
}

.icon-bell:before {
  content: "♢";
  font-size: 25px;
}

.icon-shelf:before {
  content: "▣";
  font-size: 23px;
}

.icon-moon:before {
  content: "◐";
  font-size: 24px;
}

.icon-folder:before {
  content: "▱";
  font-size: 25px;
}

.icon-star:before {
  content: "★";
  font-size: 20px;
}

.icon-chevron:before {
  content: "⌄";
  font-size: 22px;
}

.icon-shield:before {
  content: "◆";
  font-size: 14px;
}

.icon-up:before {
  content: "↑";
  font-size: 20px;
  font-weight: 900;
}

@media (max-width: 900px) {
  .nav-wrap {
    gap: 16px;
  }

  .main-nav ul {
    gap: 18px;
  }

  .header-download {
    padding: 11px 14px;
  }

  .hero-grid,
  .split-grid,
  .faq-wrap {
    grid-template-columns: 1fr;
    gap: 35px;
  }

  .hero-grid {
    padding: 70px 0;
  }

  .hero-showcase {
    min-height: 475px;
  }

  .split-grid .section-heading {
    margin-bottom: 0;
  }

  .feature-grid,
  .screenshots-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .faq-wrap {
    gap: 20px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .container {
    width: min(100% - 32px, 1200px);
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 30;
  }

  .nav-wrap {
    height: 68px;
  }

  .brand {
    font-size: 18px;
  }

  .brand img {
    width: 38px;
    height: 38px;
  }

  .menu-toggle {
    display: block;
    margin-left: auto;
  }

  .header-download {
    display: none;
  }

  .main-nav {
    position: absolute;
    top: 68px;
    right: 16px;
    left: 16px;
    display: none;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255, 253, 249, 0.98);
    box-shadow: var(--shadow);
  }

  .main-nav.is-open {
    display: block;
  }

  .main-nav ul {
    display: grid;
    gap: 0;
  }

  .main-nav li {
    border-bottom: 1px solid var(--line);
  }

  .main-nav li:last-child {
    border-bottom: 0;
  }

  .nav-link {
    display: block;
    padding: 15px 10px;
  }

  .hero-grid {
    min-height: auto;
    padding: 58px 0 65px;
  }

  .hero-lead {
    font-size: 25px;
  }

  .hero-text {
    font-size: 15px;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .button {
    padding: 0 12px;
    font-size: 13px;
  }

  .stats {
    gap: 18px;
    margin-top: 37px;
  }

  .stats strong {
    font-size: 24px;
  }

  .stats span {
    font-size: 11px;
  }

  .hero-showcase {
    min-height: 420px;
  }

  .device-card {
    width: 235px;
    height: 412px;
    border-radius: 32px;
  }

  .device-screen {
    padding: 20px 13px 13px;
    border-radius: 25px;
  }

  .screen-title {
    margin: 20px 0 13px;
    font-size: 20px;
  }

  .screen-highlight {
    height: 80px;
  }

  .screen-row {
    padding: 9px 0;
  }

  .screen-row img {
    width: 38px;
    height: 44px;
  }

  .showcase-note {
    right: 0;
    bottom: 38px;
    padding: 15px 16px;
  }

  .showcase-note b {
    font-size: 15px;
  }

  .showcase-note span {
    font-size: 10px;
  }

  .showcase-tag {
    top: 35px;
    right: 8px;
  }

  .section {
    padding: 75px 0;
  }

  .section-heading {
    margin-bottom: 34px;
  }

  .section-heading h2 {
    font-size: 30px;
  }

  .section-heading p {
    font-size: 14px;
  }

  .feature-grid,
  .download-grid,
  .review-grid {
    grid-template-columns: 1fr;
  }

  .screenshots-grid {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(220px, 72vw);
    grid-template-columns: none;
    gap: 14px;
    overflow-x: auto;
    padding-bottom: 10px;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
  }

  .screenshots-grid::-webkit-scrollbar {
    height: 8px;
  }

  .screenshots-grid::-webkit-scrollbar-track {
    background: #f2e6d3;
    border-radius: 999px;
  }

  .screenshots-grid::-webkit-scrollbar-thumb {
    background: #d79a2c;
    border-radius: 999px;
  }

  .shot-card {
    scroll-snap-align: start;
  }

  .feature-card,
  .download-card {
    padding: 24px;
  }

  .download-tip {
    align-items: flex-start;
    justify-content: flex-start;
    font-size: 12px;
  }

  .download-tip span {
    line-height: 1.6;
  }

  .update-item {
    padding: 15px;
  }

  .update-item img {
    width: 58px;
    height: 58px;
  }

  .update-item b {
    font-size: 14px;
  }

  .update-item small {
    font-size: 12px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 26px;
  }

  .footer-grid > div:first-child {
    grid-column: 1 / -1;
  }

  .footer-bottom {
    display: grid;
    gap: 8px;
  }

  .back-top {
    right: 16px;
    bottom: 16px;
    width: 40px;
    height: 40px;
  }
}