@charset "UTF-8";
/* 作者：搭客佬
官网： */

:root {
  --brand: #1598ee;
  --brand-deep: #0879d5;
  --brand-soft: #eaf6ff;
  --brand-pale: #f5fbff;
  --ink: #10213c;
  --ink-soft: #526078;
  --muted: #738096;
  --line: #d8e5f1;
  --paper: #ffffff;
  --paper-blue: #f1f8fe;
  --accent: #ff754d;
  --footer: #082846;
  --content-width: 1200px;
  --header-height: 76px;
  --radius-large: 28px;
  --radius-medium: 18px;
  --shadow: 0 20px 55px rgba(29, 96, 145, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding-top: var(--header-height);
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

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

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

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

button,
summary,
a {
  -webkit-tap-highlight-color: transparent;
}

button,
input {
  border: 0;
}

button {
  cursor: pointer;
}

ul,
ol,
p,
h1,
h2,
h3,
figure {
  margin: 0;
  padding: 0;
}

ul,
ol {
  list-style: none;
}

[hidden] {
  display: none !important;
}

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

.section {
  padding: 112px 0;
}

.section-heading {
  margin-bottom: 44px;
}

.section-heading-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 64px;
}

.section-heading-row > p {
  max-width: 440px;
  padding-bottom: 5px;
}

.section-index {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--brand-deep);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.section-heading h2,
.download-copy h2 {
  max-width: 820px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.18;
  letter-spacing: -0.04em;
}

.section-heading > p,
.section-heading-row > p,
.download-copy > p {
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 16px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 28px;
  border: 1px solid transparent;
  border-radius: 14px;
  font-size: 16px;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
  transition: background-color 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.button-primary {
  color: #ffffff;
  background: var(--brand);
  box-shadow: 0 12px 28px rgba(21, 152, 238, 0.28);
}

.button-primary:hover {
  background: var(--brand-deep);
  box-shadow: 0 16px 34px rgba(8, 121, 213, 0.3);
}

.button-primary:focus-visible,
.primary-nav a:focus-visible,
.mobile-download:focus-visible,
.footer-nav a:focus-visible,
.brand:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible,
.official-answer a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.icon {
  display: inline-block;
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}

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

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

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

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

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

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

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

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

.site-header {
  position: fixed;
  z-index: 1000;
  top: 0;
  right: 0;
  left: 0;
  height: var(--header-height);
  border-bottom: 1px solid rgba(207, 225, 239, 0.92);
  background: rgba(255, 255, 255, 0.98);
}

.header-inner {
  position: relative;
  display: flex;
  width: min(var(--content-width), calc(100% - 48px));
  height: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 11px;
  border-radius: 10px;
}

.brand img {
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  object-fit: contain;
}

.brand-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  line-height: 1.2;
}

.brand-copy strong {
  overflow: hidden;
  font-size: 18px;
  font-weight: 900;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-copy span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.primary-nav ul {
  display: flex;
  align-items: center;
  gap: 8px;
}

.primary-nav a {
  position: relative;
  display: flex;
  min-height: 42px;
  align-items: center;
  padding: 0 16px;
  border-radius: 10px;
  color: #39475d;
  font-size: 14px;
  font-weight: 700;
  transition: color 160ms ease, background-color 160ms ease;
}

.primary-nav a::after {
  position: absolute;
  right: 16px;
  bottom: 4px;
  left: 16px;
  height: 2px;
  border-radius: 2px;
  background: transparent;
  content: "";
}

.primary-nav a:hover,
.primary-nav a.is-active {
  color: var(--brand-deep);
  background: var(--brand-pale);
}

.primary-nav a.is-active::after {
  background: var(--brand);
}

.header-actions,
.mobile-download,
.menu-toggle {
  display: none;
}

.hero {
  position: relative;
  min-height: 720px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 13% 18%, rgba(21, 152, 238, 0.16) 0 2px, transparent 2.5px) 0 0 / 17px 17px,
    linear-gradient(126deg, #f2f9ff 0%, #ffffff 54%, #edf8ff 100%);
}

.hero::before {
  position: absolute;
  top: -220px;
  left: 45%;
  width: 2px;
  height: 1080px;
  background: rgba(16, 33, 60, 0.2);
  content: "";
  transform: rotate(-10deg);
}

.hero-panel {
  position: absolute;
  border: 1px solid rgba(16, 33, 60, 0.18);
  background: rgba(255, 255, 255, 0.66);
}

.hero-panel-left {
  top: 60px;
  left: -80px;
  width: 330px;
  height: 170px;
  transform: rotate(-9deg);
}

.hero-panel-right {
  right: -95px;
  bottom: 52px;
  width: 360px;
  height: 220px;
  transform: rotate(8deg);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  min-height: 720px;
  grid-template-columns: minmax(0, 1fr) 520px;
  align-items: center;
  gap: 70px;
}

.hero-copy {
  padding: 72px 0;
}

.eyebrow {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 14px;
  border: 1px solid rgba(21, 152, 238, 0.42);
  border-radius: 999px;
  color: var(--brand-deep);
  background: rgba(255, 255, 255, 0.76);
  font-size: 13px;
  font-weight: 800;
}

.hero h1 {
  margin-top: 20px;
  font-size: clamp(54px, 6vw, 82px);
  font-weight: 950;
  line-height: 1;
  letter-spacing: -0.07em;
}

.hero-slogan {
  margin-top: 20px;
  font-size: clamp(25px, 3vw, 36px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.04em;
}

.hero-description {
  max-width: 590px;
  margin-top: 18px;
  color: var(--ink-soft);
  font-size: 17px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.hero-tags li {
  min-height: 38px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 11px;
  color: #2f4662;
  background: rgba(255, 255, 255, 0.84);
  font-size: 13px;
  font-weight: 700;
}

.hero-action {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  margin-top: 28px;
}

.age-label {
  display: block;
  margin-top: 13px;
  color: var(--muted);
  font-size: 12px;
}

.hero-visual {
  position: relative;
  display: flex;
  width: 100%;
  min-height: 640px;
  align-items: center;
  justify-content: flex-end;
}

.phone-shell {
  position: relative;
  z-index: 2;
  width: 322px;
  height: 624px;
  padding: 14px;
  border: 5px solid #101925;
  border-radius: 50px;
  background: #101925;
  box-shadow: 0 34px 70px rgba(11, 49, 79, 0.28);
}

.phone-shell::before,
.phone-shell::after {
  position: absolute;
  left: -9px;
  width: 4px;
  border-radius: 4px 0 0 4px;
  background: #101925;
  content: "";
}

.phone-shell::before {
  top: 120px;
  height: 54px;
}

.phone-shell::after {
  top: 190px;
  height: 72px;
}

.phone-speaker {
  position: absolute;
  z-index: 4;
  top: 18px;
  left: 50%;
  width: 92px;
  height: 23px;
  border-radius: 0 0 16px 16px;
  background: #101925;
  transform: translateX(-50%);
}

.phone-screen {
  position: relative;
  height: 100%;
  overflow: hidden;
  border-radius: 34px;
  background: #ffffff;
}

.phone-status,
.app-brand-row,
.app-tabs,
.app-section-title,
.app-bottom-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.phone-status {
  height: 34px;
  padding: 0 18px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 800;
}

.app-brand-row {
  padding: 10px 18px 7px;
}

.app-brand-row img {
  width: 27px;
  height: 27px;
  object-fit: contain;
}

.app-brand-row strong {
  margin-right: auto;
  margin-left: 8px;
  font-size: 16px;
}

.app-brand-row .icon {
  width: 17px;
  height: 17px;
}

.app-search {
  display: flex;
  height: 34px;
  align-items: center;
  gap: 7px;
  margin: 4px 17px 9px;
  padding: 0 11px;
  border-radius: 11px;
  color: #8995a6;
  background: #eff4f8;
  font-size: 12px;
}

.app-search .icon {
  width: 13px;
  height: 13px;
}

.app-tabs {
  padding: 0 19px 8px;
  color: #617086;
  font-size: 12px;
}

.app-tabs strong {
  position: relative;
  color: var(--brand-deep);
}

.app-tabs strong::after {
  position: absolute;
  right: 0;
  bottom: -6px;
  left: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
  content: "";
}

.app-banner {
  display: flex;
  height: 142px;
  justify-content: center;
  flex-direction: column;
  margin: 8px 14px 15px;
  padding: 18px;
  border-radius: 18px;
  color: #ffffff;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.16) 0 19%, transparent 19% 52%, rgba(255, 255, 255, 0.12) 52% 66%, transparent 66%),
    linear-gradient(135deg, #1aa5ef, #096fd1);
}

.app-banner small,
.app-banner span {
  font-size: 12px;
}

.app-banner strong {
  margin: 6px 0;
  font-size: 24px;
  line-height: 1.1;
}

.app-section-title {
  padding: 0 17px 10px;
  font-size: 12px;
}

.app-section-title strong {
  font-size: 15px;
}

.app-section-title span {
  color: var(--brand-deep);
}

.app-cover-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 0 15px;
}

.app-cover-row img {
  width: 100%;
  height: 124px;
  border-radius: 9px;
  background: #eff4f8;
  object-fit: contain;
}

.app-bottom-nav {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 58px;
  padding: 0 22px;
  border-top: 1px solid #e6edf3;
  color: #8792a1;
  background: #ffffff;
  font-size: 12px;
}

.app-bottom-nav strong {
  color: var(--brand-deep);
}

.hero-note {
  position: absolute;
  z-index: 1;
  padding: 18px 22px;
  border: 1px solid rgba(16, 33, 60, 0.18);
  color: #172c46;
  background: rgba(255, 255, 255, 0.88);
  font-family: KaiTi, STKaiti, serif;
  font-size: 18px;
  line-height: 1.45;
  box-shadow: 8px 8px 0 rgba(21, 152, 238, 0.1);
}

.hero-note-one {
  top: 122px;
  left: 12px;
  transform: rotate(-5deg);
}

.hero-note-two {
  right: -12px;
  bottom: 92px;
  transform: rotate(5deg);
}

.discover {
  background: #ffffff;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 16px;
}

.feature-card,
.calendar-strip {
  border: 1px solid var(--line);
  border-radius: var(--radius-medium);
  background: var(--paper);
  box-shadow: 0 12px 34px rgba(23, 77, 116, 0.06);
}

.feature-card {
  min-height: 360px;
  padding: 28px;
}

.search-card {
  grid-column: span 5;
  grid-row: span 2;
  background:
    radial-gradient(circle at 92% 12%, rgba(21, 152, 238, 0.22) 0 2px, transparent 2.5px) 0 0 / 14px 14px,
    linear-gradient(145deg, #ffffff 0 66%, #edf8ff 66%);
}

.ranking-card {
  grid-column: span 7;
  background: linear-gradient(135deg, #ffffff, #f7fbff);
}

.shelf-card {
  grid-column: span 7;
}

.offline-card {
  grid-column: span 5;
  background: linear-gradient(145deg, #ffffff, #f1f8fe);
}

.calendar-strip {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: 260px minmax(0, 1fr);
  align-items: center;
  gap: 30px;
  padding: 22px 28px;
}

.card-heading,
.heading-main,
.calendar-title {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.card-heading-split {
  align-items: center;
  justify-content: space-between;
}

.feature-icon {
  display: flex;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--brand-soft);
}

.feature-icon .icon,
.calendar-title > .icon {
  width: 21px;
  height: 21px;
}

.card-heading h3 {
  font-size: 21px;
  line-height: 1.3;
}

.card-heading p {
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.search-demo {
  margin-top: 34px;
}

.search-demo label {
  display: block;
  margin-bottom: 10px;
  font-size: 13px;
  font-weight: 800;
}

.search-control {
  display: flex;
  gap: 8px;
}

.search-control input {
  min-width: 0;
  height: 48px;
  flex: 1;
  padding: 0 15px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
  font-size: 14px;
}

.search-control input::placeholder {
  color: #8a96a8;
}

.search-control button {
  min-width: 72px;
  border-radius: 12px;
  color: #ffffff;
  background: var(--brand);
  font-size: 14px;
  font-weight: 800;
}

.suggestion-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.suggestion-list button,
.ranking-tabs button,
.text-action {
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #ffffff;
  font-size: 12px;
  font-weight: 700;
}

.suggestion-list button {
  padding: 0 13px;
}

.suggestion-list button:hover,
.suggestion-list button.is-active,
.ranking-tabs button:hover,
.ranking-tabs button.is-active {
  border-color: var(--brand);
  color: var(--brand-deep);
  background: var(--brand-soft);
}

.search-feedback {
  margin-top: 18px;
  color: var(--ink-soft);
  font-size: 13px;
}

.ranking-tabs {
  display: flex;
  gap: 8px;
  margin-top: 22px;
}

.ranking-tabs button {
  padding: 0 15px;
}

.ranking-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.ranking-list li {
  position: relative;
  display: grid;
  min-width: 0;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 10px;
  padding: 10px;
  border: 1px solid #e4edf5;
  border-radius: 13px;
  background: #ffffff;
}

.ranking-list img {
  width: 54px;
  height: 75px;
  border-radius: 8px;
  background: #f1f5f8;
  object-fit: contain;
}

.rank-number {
  position: absolute;
  z-index: 2;
  top: 5px;
  left: 5px;
  min-width: 25px;
  padding: 2px 4px;
  border-radius: 6px;
  color: #ffffff;
  background: var(--brand-deep);
  font-size: 12px;
  font-weight: 900;
  line-height: 1.4;
}

.ranking-list li > div {
  display: flex;
  min-width: 0;
  justify-content: center;
  flex-direction: column;
}

.ranking-list strong,
.ranking-list span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ranking-list strong {
  font-size: 13px;
}

.ranking-list li > div span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.text-action {
  min-width: 76px;
  padding: 0 12px;
  color: var(--brand-deep);
}

.shelf-covers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.shelf-covers figure {
  position: relative;
  min-width: 0;
  padding: 8px;
  border: 1px solid #e3edf5;
  border-radius: 14px;
  background: #f8fbfd;
}

.shelf-covers figure.is-highlighted {
  border-color: var(--brand);
  background: var(--brand-soft);
}

.shelf-covers img {
  width: 100%;
  height: 176px;
  border-radius: 9px;
  background: #ffffff;
  object-fit: contain;
}

.shelf-covers figcaption {
  padding: 8px 2px 1px;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 700;
  text-align: center;
}

.offline-task {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 15px;
  margin-top: 36px;
  padding: 14px;
  border: 1px solid #deebf5;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.9);
}

.offline-task > img {
  width: 74px;
  height: 102px;
  border-radius: 9px;
  background: #f0f4f7;
  object-fit: contain;
}

.offline-copy {
  display: flex;
  min-width: 0;
  justify-content: center;
  flex-direction: column;
}

.offline-copy strong {
  font-size: 14px;
}

.offline-copy > span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.progress-track {
  height: 7px;
  margin-top: 13px;
  overflow: hidden;
  border-radius: 999px;
  background: #e6edf3;
}

.progress-track span {
  display: block;
  width: 66%;
  height: 100%;
  border-radius: inherit;
  background: var(--brand);
}

.switch-control {
  display: flex;
  grid-column: 1 / -1;
  align-items: center;
  justify-content: flex-end;
  gap: 9px;
  color: var(--ink-soft);
  font-size: 12px;
  cursor: pointer;
}

.switch-control input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.switch-control i {
  position: relative;
  display: block;
  width: 40px;
  height: 22px;
  border-radius: 999px;
  background: #c6d3de;
}

.switch-control i::after {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #ffffff;
  content: "";
}

.switch-control input:checked + i {
  background: var(--brand);
}

.switch-control input:checked + i::after {
  left: 21px;
}

.switch-control input:focus-visible + i {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.calendar-title {
  align-items: center;
}

.calendar-title > .icon {
  width: 38px;
  height: 38px;
}

.calendar-title div {
  display: flex;
  flex-direction: column;
}

.calendar-title strong {
  font-size: 16px;
}

.calendar-title span {
  color: var(--muted);
  font-size: 12px;
}

.calendar-strip ol {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.calendar-strip li {
  display: flex;
  min-height: 62px;
  justify-content: center;
  flex-direction: column;
  padding: 8px 13px;
  border-left: 1px solid var(--line);
}

.calendar-strip li span {
  color: var(--muted);
  font-size: 12px;
}

.calendar-strip li strong {
  margin-top: 3px;
  font-size: 13px;
}

.calendar-strip li.is-today {
  border: 0;
  border-radius: 11px;
  color: #ffffff;
  background: var(--brand);
}

.calendar-strip li.is-today span {
  color: #ffffff;
}

.showcase {
  border-top: 1px solid #e4eef6;
  border-bottom: 1px solid #e4eef6;
  background: var(--paper-blue);
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.screenshot-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #ffffff;
  box-shadow: 0 16px 42px rgba(20, 76, 117, 0.08);
}

.screenshot-media {
  aspect-ratio: 9 / 16;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}

.screenshot-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.screenshot-card figcaption {
  display: flex;
  min-height: 88px;
  justify-content: center;
  flex-direction: column;
  padding: 15px 18px;
}

.screenshot-card figcaption strong {
  font-size: 16px;
}

.screenshot-card figcaption span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.answers {
  background: #ffffff;
}

.faq-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.faq-item {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: #ffffff;
}

.faq-item h3 {
  font-size: 16px;
}

.faq-item button {
  display: flex;
  width: 100%;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 20px;
  background: transparent;
  font-weight: 800;
  text-align: left;
}

.faq-item button:hover {
  color: var(--brand-deep);
  background: var(--brand-pale);
}

.faq-item button i,
.official-toggle {
  position: relative;
  display: block;
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}

.faq-item button i::before,
.faq-item button i::after,
.official-toggle::before,
.official-toggle::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  content: "";
  transform: translate(-50%, -50%);
}

.faq-item button i::after,
.official-toggle::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item button[aria-expanded="true"] i::after,
.official-disclosure[open] .official-toggle::after {
  display: none;
}

.faq-answer {
  padding: 0 20px 20px;
}

.faq-answer p,
.official-answer p {
  color: var(--ink-soft);
  font-size: 14px;
}

.official-disclosure {
  width: 100%;
  margin-top: 16px;
  border: 1px solid var(--brand);
  border-radius: 15px;
  background: var(--brand-pale);
}

.official-disclosure summary {
  display: grid;
  min-height: 68px;
  grid-template-columns: 24px minmax(0, 1fr) 20px;
  align-items: center;
  gap: 13px;
  padding: 15px 20px;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.official-disclosure summary:hover {
  color: var(--brand-deep);
}

.official-disclosure summary strong {
  font-size: 16px;
}

.official-answer {
  padding: 0 20px 20px 57px;
}

.official-answer a {
  display: inline-block;
  margin-top: 8px;
  border-bottom: 1px solid currentColor;
  color: var(--brand-deep);
  font-size: 14px;
  font-weight: 800;
}

.reviews {
  padding-top: 30px;
  background: #ffffff;
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.review-card {
  min-height: 260px;
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background:
    radial-gradient(circle at 90% 12%, rgba(21, 152, 238, 0.14) 0 2px, transparent 2.5px) 0 0 / 15px 15px,
    #ffffff;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  display: flex;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #ffffff;
  background: var(--brand);
  font-size: 17px;
  font-weight: 900;
}

.review-author > div {
  display: flex;
  flex-direction: column;
}

.review-author strong {
  font-size: 14px;
}

.review-author time {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.review-card > p {
  margin-top: 18px;
  color: #46566d;
  font-size: 14px;
  line-height: 1.9;
}

.download-section {
  padding: 100px 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 9% 18%, rgba(21, 152, 238, 0.18) 0 2px, transparent 2.5px) 0 0 / 18px 18px,
    linear-gradient(135deg, #eaf6ff, #ffffff 50%, #e5f4ff);
}

.download-desk {
  position: relative;
  display: grid;
  min-height: 490px;
  grid-template-columns: minmax(0, 1.15fr) minmax(380px, 0.85fr);
  align-items: center;
  gap: 70px;
  overflow: hidden;
  padding: 60px;
  border: 1px solid #bfdcf1;
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow);
}

.download-desk::before {
  position: absolute;
  top: -180px;
  left: 52%;
  width: 1px;
  height: 850px;
  background: rgba(16, 33, 60, 0.16);
  content: "";
  transform: rotate(-11deg);
}

.download-copy {
  position: relative;
  z-index: 2;
}

.download-copy h2 {
  max-width: 680px;
  white-space: nowrap;
}

.button-download {
  margin-top: 28px;
}

.button-download .icon {
  filter: brightness(0) invert(1);
}

.download-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 38px;
}

.download-steps li {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
  padding-right: 12px;
  border-right: 1px solid var(--line);
}

.download-steps li:last-child {
  border-right: 0;
}

.download-steps li > span {
  display: flex;
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #ffffff;
  background: var(--brand);
  font-size: 12px;
  font-weight: 900;
}

.download-steps div {
  display: flex;
  min-width: 0;
  flex-direction: column;
}

.download-steps strong {
  font-size: 13px;
  white-space: nowrap;
}

.download-steps small {
  margin-top: 2px;
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.download-poster {
  position: relative;
  z-index: 2;
  min-height: 370px;
  padding: 34px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.48);
  border-radius: 28px;
  color: #ffffff;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.2), transparent 45%),
    linear-gradient(135deg, #1aa5ef, #096fcf);
  box-shadow: 16px 18px 0 rgba(21, 152, 238, 0.13);
}

.poster-brand {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  align-items: center;
  column-gap: 12px;
}

.poster-brand img {
  width: 48px;
  height: 48px;
  grid-row: span 2;
  border-radius: 12px;
  object-fit: contain;
}

.poster-brand strong {
  align-self: end;
  font-size: 19px;
}

.poster-brand span {
  align-self: start;
  color: rgba(255, 255, 255, 0.8);
  font-size: 12px;
}

.poster-covers {
  display: flex;
  align-items: flex-end;
  gap: 11px;
  margin-top: 30px;
}

.poster-covers img {
  width: calc((100% - 22px) / 3);
  height: 175px;
  border: 5px solid rgba(255, 255, 255, 0.9);
  border-radius: 12px;
  background: #ffffff;
  object-fit: contain;
}

.poster-covers img:nth-child(2) {
  height: 200px;
}

.download-poster > p {
  position: absolute;
  right: 30px;
  bottom: 24px;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  color: var(--ink);
  background: #ffffff;
  font-family: KaiTi, STKaiti, serif;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.45;
  transform: rotate(-3deg);
}

.site-footer {
  color: #ffffff;
  background: var(--footer);
}

.footer-main {
  display: flex;
  min-height: 154px;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.footer-brand .brand-copy span {
  color: rgba(255, 255, 255, 0.66);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 24px;
}

.footer-nav a {
  border-radius: 5px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 13px;
}

.footer-nav a:hover {
  color: #ffffff;
}

.footer-bottom {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.74);
  color: rgba(255, 255, 255, 0.65);
  font-size: 12px;
}

.back-to-top {
  position: fixed;
  z-index: 900;
  right: 24px;
  bottom: 24px;
  display: flex;
  width: 46px;
  height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid #c9deed;
  border-radius: 14px;
  opacity: 0;
  visibility: hidden;
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(18, 66, 102, 0.2);
  transform: translateY(8px);
  transition: opacity 160ms ease, visibility 160ms ease, transform 160ms ease;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  border-color: var(--brand);
  background: var(--brand-soft);
}

.back-to-top .icon {
  width: 22px;
  height: 22px;
}

@media (max-width: 1060px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr) 430px;
    gap: 30px;
  }

  .hero-note-one {
    display: none;
  }

  .ranking-list {
    grid-template-columns: 1fr;
  }

  .ranking-list li {
    grid-template-columns: 48px minmax(0, 1fr);
  }

  .ranking-list img {
    width: 48px;
    height: 66px;
  }

  .download-desk {
    gap: 44px;
    padding: 48px;
  }
}

@media (max-width: 860px) {
  :root {
    --header-height: 68px;
  }

  .header-inner {
    width: calc(100% - 32px);
  }

  .brand img {
    width: 40px;
    height: 40px;
  }

  .brand-copy strong {
    font-size: 16px;
  }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
  }

  .mobile-download {
    display: inline-flex;
    min-height: 38px;
    align-items: center;
    justify-content: center;
    padding: 0 12px;
    border-radius: 10px;
    color: #ffffff;
    background: var(--brand);
    font-size: 12px;
    font-weight: 800;
    white-space: nowrap;
  }

  .menu-toggle {
    display: flex;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #ffffff;
  }

  .menu-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--ink);
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .primary-nav {
    position: absolute;
    top: 100%;
    right: -16px;
    left: -16px;
    display: none;
    padding: 10px 16px 16px;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: #ffffff;
    box-shadow: 0 16px 30px rgba(17, 58, 89, 0.12);
  }

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

  .primary-nav ul {
    align-items: stretch;
    flex-direction: column;
    gap: 3px;
  }

  .primary-nav a {
    min-height: 44px;
    padding: 0 12px;
  }

  .primary-nav a::after {
    display: none;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr) 380px;
  }

  .phone-shell {
    width: 280px;
    height: 542px;
    border-radius: 44px;
  }

  .phone-screen {
    border-radius: 29px;
  }

  .app-banner {
    height: 118px;
  }

  .app-cover-row img {
    height: 98px;
  }

  .search-card,
  .offline-card {
    grid-column: span 6;
  }

  .ranking-card,
  .shelf-card {
    grid-column: span 6;
  }

  .calendar-strip {
    grid-template-columns: 1fr;
  }

  .calendar-strip li {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .review-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .download-desk {
    grid-template-columns: 1fr;
  }

  .download-desk::before {
    display: none;
  }

  .download-poster {
    max-width: 520px;
  }
}

@media (max-width: 720px) {
  .container {
    width: calc(100% - 32px);
  }

  .section {
    padding: 82px 0;
  }

  .section-heading {
    margin-bottom: 32px;
  }

  .section-heading-row {
    display: block;
  }

  .section-heading-row > p {
    max-width: none;
    padding: 0;
  }

  .hero {
    min-height: auto;
  }

  .hero::before,
  .hero-note,
  .hero-panel {
    display: none;
  }

  .hero-inner {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 10px;
    padding-bottom: 72px;
  }

  .hero-copy {
    display: flex;
    align-items: center;
    padding: 72px 0 30px;
    flex-direction: column;
    text-align: center;
  }

  .hero h1 {
    margin-top: 18px;
    font-size: clamp(46px, 15vw, 68px);
  }

  .hero-description {
    max-width: 560px;
  }

  .hero-tags {
    justify-content: center;
  }

  .hero-action {
    align-items: center;
  }

  .hero-visual {
    min-height: 570px;
    justify-content: center;
  }

  .phone-shell {
    width: 286px;
    height: 554px;
  }

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

  .search-card,
  .ranking-card,
  .shelf-card,
  .offline-card,
  .calendar-strip {
    grid-column: 1;
    grid-row: auto;
  }

  .ranking-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .calendar-strip ol {
    overflow-x: auto;
    grid-template-columns: repeat(5, minmax(120px, 1fr));
    padding-bottom: 5px;
    scroll-snap-type: x mandatory;
  }

  .calendar-strip li {
    scroll-snap-align: start;
  }

  .screenshot-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .faq-list {
    grid-template-columns: 1fr;
  }

  .reviews {
    padding-top: 20px;
  }

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

  .download-section {
    padding: 74px 0;
  }

  .download-desk {
    min-height: auto;
    gap: 48px;
    padding: 38px 28px;
    border-radius: 24px;
  }

  .download-steps {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .download-steps li {
    padding: 0 0 14px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .download-steps li:last-child {
    padding-bottom: 0;
    border-bottom: 0;
  }

  .download-poster {
    width: 100%;
  }

  .footer-main,
  .footer-bottom {
    justify-content: center;
    flex-direction: column;
    text-align: center;
  }

  .footer-main {
    min-height: 210px;
    padding: 36px 0;
  }

  .footer-nav {
    justify-content: center;
  }

  .footer-bottom {
    min-height: 102px;
    gap: 8px;
  }

  .back-to-top {
    right: 16px;
    bottom: 16px;
  }

  .button,
  .primary-nav a,
  .mobile-download,
  .menu-toggle,
  .faq-item button,
  .back-to-top,
  summary {
    transition: none;
    animation: none;
  }
}

@media (max-width: 520px) {
  .section-heading h2,
  .download-copy h2 {
    font-size: 31px;
  }

  .section-heading > p,
  .section-heading-row > p,
  .download-copy > p {
    font-size: 14px;
  }

  .feature-card,
  .calendar-strip {
    padding: 22px;
  }

  .ranking-list {
    grid-template-columns: 1fr;
  }

  .ranking-list li {
    grid-template-columns: 54px minmax(0, 1fr);
  }

  .ranking-list img {
    width: 54px;
    height: 75px;
  }

  .shelf-covers {
    gap: 8px;
  }

  .shelf-covers figure {
    padding: 5px;
  }

  .shelf-covers img {
    height: 135px;
  }

  .screenshot-card {
    border-radius: 14px;
  }

  .screenshot-card figcaption {
    min-height: 86px;
    padding: 12px;
  }

  .screenshot-card figcaption strong {
    font-size: 14px;
  }

  .download-poster {
    min-height: 330px;
    padding: 26px;
  }

  .poster-covers img {
    height: 145px;
  }

  .poster-covers img:nth-child(2) {
    height: 170px;
  }
}

@media (max-width: 380px) {
  :root {
    --header-height: 64px;
  }

  .header-inner {
    width: calc(100% - 20px);
    gap: 6px;
  }

  .brand {
    gap: 6px;
  }

  .brand img {
    width: 34px;
    height: 34px;
  }

  .brand-copy strong {
    font-size: 13px;
  }

  .brand-copy span {
    margin-top: 2px;
    font-size: 12px;
  }

  .header-actions {
    gap: 5px;
  }

  .mobile-download {
    min-height: 36px;
    padding: 0 9px;
  }

  .menu-toggle {
    width: 36px;
    height: 36px;
  }

  .hero-copy {
    padding-top: 58px;
  }

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

  .hero-tags {
    gap: 7px;
  }

  .hero-tags li {
    padding: 6px 10px;
  }

  .phone-shell {
    width: 268px;
    height: 520px;
  }

  .app-cover-row img {
    height: 91px;
  }

  .card-heading-split {
    align-items: flex-start;
    flex-direction: column;
  }

  .search-control {
    flex-direction: column;
  }

  .search-control button {
    min-height: 44px;
  }

  .offline-task {
    grid-template-columns: 62px minmax(0, 1fr);
  }

  .offline-task > img {
    width: 62px;
    height: 88px;
  }

  .download-desk {
    padding: 32px 20px;
  }

  .download-copy h2 {
    font-size: 29px;
  }

  .button-download {
    width: 100%;
    padding: 0 14px;
    font-size: 14px;
  }
}