:root {
  --ink: #111814;
  --muted: #617068;
  --line: #dfe6e1;
  --paper: #ffffff;
  --soft: #f2f6f3;
  --dark: #0c110e;
  --dark-panel: #151c18;
  --green: #4fd68b;
  --green-dark: #159956;
  --purple: #8058dd;
  --blue: #3979d8;
  --orange: #f19b45;
  color-scheme: light;
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-size: 16px;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}

body.mask-open {
  overflow: hidden;
}

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

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

button {
  font: inherit;
}

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

.site-nav {
  position: relative;
  z-index: 10;
  width: 100%;
  height: 64px;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
}

.brand,
.mini-brand,
.footer-brand {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-size: 17px;
  font-weight: 800;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 7px;
}

.site-nav nav {
  display: flex;
  align-items: center;
  gap: 30px;
  color: #405048;
  font-size: 14px;
}

.site-nav nav a:hover,
.footer-links a:hover {
  color: var(--green-dark);
}

.site-nav .nav-download {
  padding: 9px 16px;
  color: #082414;
  background: var(--green);
  border-radius: 6px;
  font-weight: 700;
}

.hero {
  position: relative;
  height: calc(88svh - 64px);
  min-height: 620px;
  max-height: 780px;
  overflow: hidden;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 780px;
  margin: 0 auto;
  padding: 54px 24px 0;
  text-align: center;
}

.hero-logo {
  width: 74px;
  height: 74px;
  margin: 0 auto 16px;
  border-radius: 8px;
  box-shadow: 0 14px 30px rgba(9, 32, 19, 0.16);
}

.hero h1 {
  margin: 0;
  font-size: 46px;
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: 0;
}

.hero-copy > p {
  margin: 12px 0 0;
  font-size: 21px;
  line-height: 1.5;
  font-weight: 700;
}

.hero-copy .hero-detail {
  margin-top: 4px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 500;
}

.hero-actions {
  margin-top: 24px;
  display: flex;
  justify-content: center;
  gap: 12px;
}

.primary-button,
.secondary-button {
  min-width: 172px;
  height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-weight: 800;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.primary-button {
  color: #062012;
  background: var(--green);
}

.primary-button:hover {
  background: #65e39d;
  transform: translateY(-1px);
}

.secondary-button {
  color: #2c3932;
  background: #fff;
  border-color: #bfcac3;
}

.secondary-button:hover {
  border-color: #6c7d73;
}

.version-line {
  display: block;
  margin-top: 12px;
  color: #7b8880;
  font-size: 12px;
}

.hero-device {
  position: absolute;
  z-index: 1;
  left: 50%;
  top: 410px;
  width: 316px;
  transform: translateX(-50%);
}

.phone {
  position: relative;
  width: 100%;
  height: 612px;
  overflow: hidden;
  color: #f4f7f5;
  background: #0b0f0d;
  border: 8px solid #171d19;
  border-radius: 34px;
  box-shadow: 0 28px 70px rgba(9, 23, 14, 0.25);
}

.phone::before {
  content: "";
  position: absolute;
  z-index: 5;
  top: 7px;
  left: 50%;
  width: 82px;
  height: 18px;
  transform: translateX(-50%);
  background: #050706;
  border-radius: 0 0 12px 12px;
}

.phone-status {
  height: 30px;
  padding: 8px 15px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #d9e0dc;
  font-size: 9px;
}

.app-topbar,
.screen-titlebar {
  height: 48px;
  padding: 0 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mini-brand {
  gap: 8px;
  font-size: 14px;
  font-weight: 800;
}

.mini-brand img {
  width: 28px;
  height: 28px;
  border-radius: 5px;
}

.points {
  padding: 5px 8px;
  color: #bbf2d2;
  background: #18271f;
  border: 1px solid #2b4c3a;
  border-radius: 5px;
  font-size: 9px;
}

.phone-content {
  padding: 10px 14px 68px;
}

.phone-content .eyebrow {
  margin: 0 0 3px;
  color: #7e8d84;
  font-size: 9px;
}

.phone-content h2 {
  margin: 0 0 13px;
  font-size: 20px;
  line-height: 1.3;
}

.app-banner {
  position: relative;
  height: 128px;
  overflow: hidden;
  border-radius: 7px;
  background: #151b2f;
}

.app-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(5, 10, 18, 0.28);
}

.app-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.app-banner div {
  position: absolute;
  z-index: 2;
  left: 14px;
  right: 14px;
  bottom: 14px;
}

.app-banner strong,
.app-banner span {
  display: block;
}

.app-banner strong {
  font-size: 14px;
}

.app-banner span {
  margin-top: 4px;
  color: #d8dfdc;
  font-size: 9px;
}

.tool-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px 8px;
}

.tool-grid span {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  color: #c9d1cd;
  font-size: 9px;
}

.tool-grid b,
.feature-mark {
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-grid b {
  width: 34px;
  height: 34px;
  color: #07120c;
  background: var(--green);
  border-radius: 7px;
  font-size: 12px;
}

.tool-grid span:nth-child(2) b,
.tool-grid span:nth-child(6) b {
  color: #f4efff;
  background: var(--purple);
}

.tool-grid span:nth-child(3) b,
.tool-grid span:nth-child(5) b {
  color: #eef6ff;
  background: var(--blue);
}

.tool-grid span:nth-child(4) b {
  color: #251405;
  background: var(--orange);
}

.section {
  padding: 96px max(24px, calc((100vw - 1120px) / 2));
}

.section-heading {
  max-width: 720px;
}

.section-heading > span,
.trust-copy > span,
.download-section > div > span {
  display: block;
  margin-bottom: 12px;
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 800;
}

.section-heading h2,
.trust-copy h2,
.download-section h2 {
  margin: 0;
  font-size: 32px;
  line-height: 1.35;
  letter-spacing: 0;
}

.section-heading p,
.trust-copy p {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.feature-grid {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.feature-item {
  min-height: 210px;
  padding: 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.feature-mark {
  width: 42px;
  height: 42px;
  border-radius: 7px;
  font-size: 15px;
  font-weight: 900;
}

.mark-writing {
  color: #082516;
  background: #a5e8c2;
}

.mark-image,
.mark-comic {
  color: #251e39;
  background: #c7b5f2;
}

.mark-video,
.mark-office {
  color: #12233c;
  background: #aacbf5;
}

.mark-audio {
  color: #3d240c;
  background: #f5c28f;
}

.feature-item h3 {
  margin: 20px 0 8px;
  font-size: 18px;
}

.feature-item p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.showcase {
  color: #f4f7f5;
  background: var(--dark);
}

.light-heading > span {
  color: var(--green);
}

.light-heading p {
  color: #9aaba1;
}

.screen-gallery {
  margin-top: 60px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 44px;
  align-items: start;
}

.screen-column {
  min-width: 0;
  text-align: center;
}

.screen-column .screenshot-phone {
  width: min(100%, 310px);
  height: 620px;
  margin: 0 auto;
  text-align: left;
  border-color: #2b332e;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
}

.screen-column > h3 {
  margin: 24px 0 6px;
  font-size: 17px;
}

.screen-column > p {
  margin: 0;
  color: #91a097;
  font-size: 13px;
}

.compact {
  gap: 10px 6px;
}

.subhead {
  margin: 18px 0 10px;
  display: flex;
  justify-content: space-between;
  font-size: 10px;
}

.subhead span {
  color: #89968e;
}

.inspiration-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.inspiration-row figure {
  position: relative;
  height: 112px;
  margin: 0;
  overflow: hidden;
  border-radius: 7px;
}

.inspiration-row img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.inspiration-row figcaption {
  position: absolute;
  left: 8px;
  bottom: 7px;
  padding: 3px 5px;
  background: rgba(5, 8, 7, 0.78);
  border-radius: 4px;
  font-size: 8px;
}

.app-tabbar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 54px;
  padding: 0 14px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #718078;
  background: #0a0e0c;
  border-top: 1px solid #252d29;
  font-size: 9px;
}

.app-tabbar b {
  color: var(--green);
}

.screen-titlebar {
  border-bottom: 1px solid #202824;
  font-size: 11px;
}

.screen-titlebar strong {
  font-size: 14px;
}

.screen-titlebar span:last-child {
  color: var(--green);
}

.creation-body {
  padding: 16px 14px 82px;
}

.mode-tabs,
.works-tabs {
  display: flex;
  padding: 3px;
  background: #171e1a;
  border: 1px solid #28312c;
  border-radius: 6px;
  font-size: 10px;
}

.mode-tabs > *,
.works-tabs > * {
  flex: 1;
  padding: 8px;
  text-align: center;
}

.mode-tabs b,
.works-tabs b {
  color: #082414;
  background: var(--green);
  border-radius: 4px;
}

.creation-body label {
  display: block;
  margin: 17px 0 7px;
  color: #cbd3cf;
  font-size: 10px;
  font-weight: 700;
}

.prompt-box {
  min-height: 106px;
  padding: 12px;
  color: #d7ded9;
  background: #151b18;
  border: 1px solid #2d3932;
  border-radius: 7px;
  font-size: 10px;
  line-height: 1.7;
}

.option-row,
.ratio-row {
  display: flex;
  gap: 6px;
}

.option-row > *,
.ratio-row > * {
  padding: 7px 8px;
  background: #191f1c;
  border: 1px solid #2c3631;
  border-radius: 5px;
  font-size: 8px;
  font-weight: 500;
}

.option-row b,
.ratio-row b {
  color: #082414;
  background: var(--green);
  border-color: var(--green);
}

.reference-block {
  margin-top: 18px;
  padding: 8px;
  display: flex;
  gap: 10px;
  align-items: center;
  background: #151b18;
  border-radius: 7px;
}

.reference-block img {
  width: 54px;
  height: 68px;
  object-fit: cover;
  border-radius: 5px;
}

.reference-block strong,
.reference-block span {
  display: block;
}

.reference-block strong {
  font-size: 10px;
}

.reference-block span {
  margin-top: 5px;
  color: #89968e;
  font-size: 8px;
}

.create-action {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 14px 16px;
  background: #0b0f0d;
  border-top: 1px solid #242c27;
}

.create-action button {
  width: 100%;
  height: 38px;
  color: #062012;
  background: var(--green);
  border: 0;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 800;
}

.works-tabs {
  margin: 10px 14px 14px;
}

.works-body {
  padding: 0 14px 66px;
}

.work-item {
  padding: 10px 0;
  display: flex;
  gap: 11px;
  align-items: center;
  border-bottom: 1px solid #202824;
}

.work-item img,
.text-thumb {
  flex: 0 0 64px;
  width: 64px;
  height: 76px;
  object-fit: cover;
  border-radius: 6px;
}

.work-item > div:last-child {
  min-width: 0;
}

.work-item strong,
.work-item span,
.work-item small {
  display: block;
}

.work-item strong {
  overflow: hidden;
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.work-item span {
  margin-top: 8px;
  color: #80dda7;
  font-size: 9px;
}

.work-item small {
  margin-top: 7px;
  color: #75837b;
  font-size: 8px;
}

.text-thumb {
  display: flex;
  align-items: center;
  justify-content: center;
  color: #d8cfff;
  background: #33265c;
  font-size: 20px;
  font-weight: 900;
}

.music-work .text-thumb {
  color: #ffdfbd;
  background: #573517;
}

.trust-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 90px;
  align-items: center;
  background: var(--soft);
}

.trust-list {
  border-top: 1px solid #cfd9d2;
}

.trust-list div {
  padding: 22px 0;
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 22px;
  border-bottom: 1px solid #cfd9d2;
}

.trust-list strong {
  font-size: 15px;
}

.trust-list span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.download-section {
  padding: 64px max(24px, calc((100vw - 1120px) / 2));
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 28px;
  align-items: center;
  color: #f4f7f5;
  background: #121915;
}

.download-section > img {
  width: 82px;
  height: 82px;
  border-radius: 8px;
}

.download-section h2 {
  font-size: 26px;
}

.download-section p {
  margin: 8px 0 0;
  color: #91a198;
  font-size: 13px;
}

.download-section > div > span {
  margin-bottom: 7px;
  color: var(--green);
}

footer {
  padding: 38px max(24px, calc((100vw - 1120px) / 2)) 28px;
  color: #526158;
  background: #fff;
  font-size: 12px;
}

.footer-main {
  padding-bottom: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.footer-brand {
  gap: 10px;
}

.footer-brand img {
  width: 38px;
  height: 38px;
  border-radius: 6px;
}

.footer-brand strong,
.footer-brand span {
  display: block;
}

.footer-brand strong {
  color: var(--ink);
  font-size: 14px;
}

.footer-brand span {
  margin-top: 3px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-legal {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.footer-legal b {
  color: #7f4330;
  font-weight: 600;
}

footer > p {
  margin: 10px 0 0;
}

.wechat-mask {
  position: fixed;
  z-index: 100;
  inset: 0;
  padding: max(32px, env(safe-area-inset-top)) 24px 24px;
  color: #fff;
  background: rgba(6, 10, 8, 0.92);
}

.wechat-mask[hidden],
.toast[hidden] {
  display: none;
}

.mask-close {
  position: absolute;
  left: 20px;
  top: max(22px, env(safe-area-inset-top));
  width: 40px;
  height: 40px;
  color: #fff;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 50%;
  cursor: pointer;
  font-size: 26px;
  line-height: 1;
}

.wechat-tip {
  max-width: 360px;
  margin-left: auto;
  padding-top: 18px;
  text-align: right;
}

.tip-arrow {
  display: block;
  margin-bottom: 20px;
  color: var(--green);
  font-size: 54px;
  line-height: 1;
}

.wechat-tip strong {
  font-size: 21px;
}

.wechat-tip p {
  margin: 12px 0 0;
  color: #c1cbc5;
  line-height: 1.7;
}

.toast {
  position: fixed;
  z-index: 110;
  left: 50%;
  bottom: max(28px, env(safe-area-inset-bottom));
  max-width: calc(100vw - 40px);
  padding: 12px 18px;
  transform: translateX(-50%);
  color: #fff;
  background: #151b18;
  border-radius: 6px;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.24);
  font-size: 14px;
  white-space: nowrap;
}

.legal-page {
  min-height: 100vh;
  background: var(--soft);
}

.legal-shell {
  width: min(100% - 40px, 820px);
  margin: 0 auto;
  padding: 56px 0 90px;
}

.back-link {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 700;
}

.legal-article {
  padding: 46px 54px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.legal-article [hidden] {
  display: none !important;
}

.legal-article h1 {
  margin: 0 0 8px;
  font-size: 34px;
}

.legal-date {
  margin: 0 0 38px;
  color: var(--muted);
  font-size: 13px;
}

.legal-article h2 {
  margin: 32px 0 10px;
  font-size: 19px;
}

.legal-article p {
  margin: 0;
  color: #46544c;
  line-height: 1.9;
  overflow-wrap: anywhere;
}

.legal-content > *:first-child {
  margin-top: 0;
}

.legal-content p + p {
  margin-top: 14px;
}

.legal-content ul,
.legal-content ol {
  margin: 12px 0 0;
  padding-left: 24px;
  color: #46544c;
  line-height: 1.9;
}

.legal-content li + li {
  margin-top: 6px;
}

.legal-content blockquote {
  margin: 22px 0 0;
  padding: 12px 16px;
  color: #526158;
  background: #f4f7f5;
  border-left: 3px solid var(--green);
  line-height: 1.8;
}

.legal-content hr {
  height: 1px;
  margin: 30px 0;
  border: 0;
  background: var(--line);
}

.legal-loading {
  min-height: 240px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  color: var(--muted);
  font-size: 14px;
}

.legal-spinner {
  width: 28px;
  height: 28px;
  border: 3px solid #dce7df;
  border-top-color: var(--green);
  border-radius: 50%;
  animation: legal-spin 0.8s linear infinite;
}

@keyframes legal-spin {
  to {
    transform: rotate(360deg);
  }
}

.legal-error {
  margin-top: 32px;
  padding: 16px;
  color: #76462c;
  background: #fff6ec;
  border-left: 3px solid #e4994e;
  font-size: 13px;
  line-height: 1.7;
}

.legal-error p {
  margin-top: 4px;
  color: #76462c;
}

.legal-retry {
  min-height: 36px;
  margin-top: 12px;
  padding: 0 16px;
  color: #fff;
  background: var(--green-dark);
  border: 0;
  border-radius: 5px;
  cursor: pointer;
  font-weight: 700;
}

.legal-noscript {
  margin-top: 28px;
}

.legal-notice {
  margin-top: 36px;
  padding: 16px;
  color: #76462c;
  background: #fff6ec;
  border-left: 3px solid #e4994e;
  font-size: 13px;
  line-height: 1.7;
}

@media (max-width: 900px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .screen-gallery {
    grid-template-columns: repeat(3, 300px);
    margin-right: -24px;
    padding-right: 24px;
    gap: 24px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .screen-gallery::-webkit-scrollbar {
    display: none;
  }

  .screen-column {
    scroll-snap-align: center;
  }

  .trust-section {
    grid-template-columns: 1fr;
    gap: 44px;
  }
}

@media (max-width: 640px) {
  .site-nav {
    height: 58px;
    padding: 0 18px;
  }

  .brand {
    font-size: 15px;
  }

  .brand img {
    width: 32px;
    height: 32px;
  }

  .site-nav nav a:not(.nav-download) {
    display: none;
  }

  .site-nav nav {
    gap: 0;
  }

  .site-nav .nav-download {
    padding: 8px 12px;
    font-size: 13px;
  }

  .hero {
    height: calc(90svh - 58px);
    min-height: 500px;
  }

  .hero-copy {
    padding-top: 36px;
  }

  .hero-logo {
    width: 62px;
    height: 62px;
    margin-bottom: 13px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-copy > p {
    margin-top: 9px;
    font-size: 18px;
  }

  .hero-copy .hero-detail {
    margin: 5px auto 0;
    max-width: 320px;
    font-size: 13px;
    line-height: 1.7;
  }

  .hero-actions {
    margin-top: 18px;
  }

  .primary-button,
  .secondary-button {
    min-width: 0;
    height: 43px;
    padding: 0 14px;
    font-size: 13px;
  }

  .version-line {
    margin-top: 9px;
  }

  .hero-device {
    top: 375px;
    width: 286px;
  }

  .section {
    padding: 72px 20px;
  }

  .section-heading h2,
  .trust-copy h2 {
    font-size: 26px;
  }

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

  .feature-grid {
    grid-template-columns: 1fr;
    margin-top: 38px;
  }

  .feature-item {
    min-height: 0;
    padding: 22px;
  }

  .feature-item h3 {
    margin-top: 16px;
  }

  .showcase {
    padding-right: 0;
  }

  .showcase .section-heading {
    padding-right: 20px;
  }

  .screen-gallery {
    grid-template-columns: repeat(3, min(82vw, 300px));
    margin-top: 42px;
    margin-right: 0;
    padding-right: 20px;
  }

  .screen-column .screenshot-phone {
    height: 604px;
  }

  .trust-list div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .download-section {
    padding: 48px 20px;
    grid-template-columns: 60px 1fr;
    gap: 16px;
  }

  .download-section > img {
    width: 60px;
    height: 60px;
  }

  .download-section h2 {
    font-size: 20px;
  }

  .download-section .primary-button {
    grid-column: 1 / -1;
    width: 100%;
    margin-top: 8px;
  }

  .footer-main {
    align-items: flex-start;
    gap: 24px;
  }

  .footer-links {
    flex-direction: column;
    gap: 12px;
  }

  .footer-legal {
    flex-direction: column;
  }

  .legal-shell {
    width: min(100% - 28px, 820px);
    padding: 28px 0 60px;
  }

  .legal-article {
    padding: 30px 22px;
  }

  .legal-article h1 {
    font-size: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}