@charset "UTF-8";
:root {
  --page: #fafaf9;
  --ink: #20211f;
  --muted: #70716f;
  --line: #e6e6e3;
  --orange: #ee5c16;
  --orange-dark: #c9470b;
  --font:
    "Segoe UI Variable", "Segoe UI", "Microsoft YaHei", "PingFang SC",
    system-ui, sans-serif;
  --radius: 22px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
textarea {
  font: inherit;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
button {
  cursor: pointer;
}
button:disabled {
  cursor: wait;
}
img,
svg {
  display: block;
}
button:focus-visible,
a:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 5px;
}
::selection {
  background: #ffdfc7;
  color: #6c2400;
}
.container {
  width: min(1200px, calc(100% - 96px));
  margin-inline: auto;
}
.skip-link {
  position: fixed;
  left: 20px;
  top: -80px;
  background: var(--ink);
  color: white;
  padding: 12px 20px;
  z-index: 100;
}
.skip-link:focus {
  top: 12px;
}
.site-header {
  height: 96px;
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(250, 250, 249, 0.91);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s;
}
.site-header.scrolled {
  border-color: var(--line);
}
.nav-wrap {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  line-height: 1.15;
  font-weight: 750;
  letter-spacing: 1px;
}
.brand img {
  object-fit: contain;
}
.brand-en {
  display: block;
  font-size: 9px;
  letter-spacing: 2px;
  font-weight: 600;
  margin-top: 5px;
}
.site-header nav {
  display: flex;
  gap: 34px;
  margin-left: auto;
  margin-right: 26px;
  font-size: 14px;
  color: #555753;
}
.site-header nav a {
  position: relative;
  padding: 8px 0;
  transition: color 0.2s;
}
.site-header nav a:hover {
  color: var(--orange);
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 10px;
  min-height: 54px;
  padding: 14px 26px;
  font-size: 15px;
  font-weight: 650;
  border: 1px solid transparent;
  transition:
    transform 0.2s,
    box-shadow 0.2s,
    background 0.2s;
}
.button:hover {
  transform: translateY(-2px);
}
.button-small {
  min-height: 42px;
  padding: 10px 19px;
  font-size: 14px;
  border-radius: 8px;
}
.button-dark {
  background: var(--ink);
  color: #fff;
}
.button-dark:hover {
  background: #3b3c39;
  box-shadow: 0 6px 16px #20211f14;
}
.button-orange {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 7px 20px #ee5c1620;
}
.button-orange:hover {
  background: var(--orange-dark);
  box-shadow: 0 9px 24px #ee5c1630;
}
.button svg {
  width: 18px;
  height: 18px;
}
.download-icon {
  font-size: 20px;
  line-height: 1;
}
.menu-toggle {
  display: none;
  background: none;
  border: 0;
  width: 40px;
  height: 42px;
  padding: 9px;
}
.hero {
  min-height: 660px;
  display: grid;
  grid-template-columns: 1fr 1.12fr;
  align-items: center;
  gap: 22px;
  padding-block: 76px 96px;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #9d4f2c;
  font-size: 13px;
  letter-spacing: 1.6px;
  font-weight: 600;
  margin: 0 0 28px;
}
.little-line {
  width: 22px;
  height: 2px;
  background: var(--orange);
}
h1,
h2,
h3,
p {
  margin-top: 0;
}
h1 {
  font-size: clamp(54px, 5.7vw, 78px);
  line-height: 1.23;
  letter-spacing: -3px;
  font-weight: 760;
  margin-bottom: 26px;
}
.orange-text {
  color: var(--orange);
  white-space: nowrap;
}
.text-caret {
  display: inline-block;
  width: 5px;
  height: 0.83em;
  background: var(--orange);
  margin-left: 10px;
  vertical-align: -0.04em;
  border-radius: 1px;
  animation: blink 1.3s step-end infinite;
}
.hero-description {
  font-size: 17px;
  line-height: 1.95;
  color: var(--muted);
  margin-bottom: 31px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 25px;
}
.text-link {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  font-weight: 600;
}
.text-link:hover {
  color: var(--orange);
}
.play-icon {
  font-size: 9px;
  border: 1px solid #cccdc9;
  border-radius: 50%;
  width: 25px;
  height: 25px;
  display: grid;
  place-items: center;
  padding-left: 2px;
}
.hero-meta {
  display: flex;
  gap: 14px;
  font-size: 12px;
  color: #858781;
  margin-top: 21px;
}
.hero-meta span + span {
  border-left: 1px solid #cecfca;
  padding-left: 14px;
}
.mobile-break {
  display: none;
}
.hero-stage {
  position: relative;
  height: 460px;
  isolation: isolate;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: -24px;
}
.hero-stage:before {
  content: "";
  position: absolute;
  inset: 24px -26px 0 -45px;
  background: radial-gradient(
    ellipse at 64% 46%,
    #f6b07665 0,
    #ffdac02b 40%,
    transparent 70%
  );
  z-index: -2;
}
.stage-grid {
  position: absolute;
  inset: 18px -5px 0 -15px;
  background-image:
    linear-gradient(#d5bdab2e 1px, transparent 1px),
    linear-gradient(90deg, #d5bdab2e 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(ellipse at 55% 50%, #000 0, transparent 68%);
  z-index: -1;
}
.stage-orbit {
  position: absolute;
  width: 435px;
  height: 435px;
  border: 1px solid #e5c0a35c;
  border-radius: 50%;
  z-index: -1;
}
.stage-orbit:after {
  content: "";
  position: absolute;
  inset: 35px;
  border: 1px solid #e5c0a34a;
  border-radius: 50%;
}
.stage-caption {
  position: absolute;
  bottom: 12px;
  left: 35px;
  font-size: 9px;
  letter-spacing: 2.7px;
  color: #9e8d81;
}
.editor-window {
  width: 94%;
  background: #222420;
  color: #eee;
  position: relative;
  border-radius: 13px;
  border: 1px solid #51534d;
  box-shadow:
    0 35px 65px -30px #49371d80,
    0 8px 18px #55391012;
  transform: rotate(-3deg);
  overflow: hidden;
  z-index: 2;
}
.editor-titlebar {
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 17px;
  border-bottom: 1px solid #3b3d37;
  color: #979b91;
  font-size: 11px;
}
.editor-brand {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #e8eae3;
  font-size: 12px;
}
.window-controls {
  margin-left: auto;
  font-size: 13px;
  color: #83867b;
}
.editor-document {
  padding: 30px 20px 22px;
  display: flex;
  gap: 22px;
  min-height: 145px;
}
.editor-line-number {
  font-size: 11px;
  color: #62665c;
  padding-top: 5px;
  font-family: monospace;
}
.editor-document p {
  font-size: 21px;
  line-height: 1.9;
  letter-spacing: 1px;
  font-weight: 450;
  margin: 0;
}
.editor-caret {
  display: inline-block;
  background: #ff994c;
  width: 2px;
  height: 23px;
  margin-left: 4px;
  vertical-align: -5px;
  animation: blink 1.3s step-end infinite;
}
.candidate-panel {
  margin: 0 20px 22px 50px;
  border: 1px solid #46483f;
  background: #30322c;
  border-radius: 9px;
  padding: 10px 13px 12px;
  box-shadow: 0 5px 12px #0002;
  width: fit-content;
  min-width: 330px;
}
.pinyin {
  font-family: Consolas, monospace;
  font-size: 14px;
  letter-spacing: 1px;
  margin-bottom: 10px;
  color: #dddcd5;
}
.pinyin-caret {
  color: #ff964a;
  margin-left: 2px;
}
.candidate-list {
  display: flex;
  gap: 8px;
  white-space: nowrap;
  font-size: 14px;
}
.candidate-list > span {
  padding: 3px 6px;
}
.candidate-list small {
  font-size: 10px;
  color: #9b9d90;
}
.candidate-list .candidate-selected {
  background: #f47a30;
  color: #fff;
  border-radius: 4px;
}
.candidate-selected small {
  color: #ffe4cb;
}
.editor-toolbar {
  display: flex;
  align-items: center;
  gap: 21px;
  font-size: 11px;
  padding: 11px 18px;
  color: #929687;
  border-top: 1px solid #3b3d37;
  background: #282a25;
}
.toolbar-ai {
  color: #efb78f;
}
.toolbar-submit {
  margin-left: auto;
  font-size: 10px;
  color: #7d8275;
}
.floating-label {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 13px;
  background: #ffffffef;
  border: 1px solid #e7e5de;
  border-radius: 12px;
  box-shadow: 0 12px 32px #6644210c;
  padding: 13px 18px;
  font-size: 13px;
  z-index: 3;
}
.float-top {
  top: 20px;
  right: 25px;
  transform: rotate(3deg);
}
.float-top strong {
  font-weight: 650;
}
.sparkle {
  font-size: 32px;
  color: var(--orange);
  line-height: 1.2;
}
.float-bottom {
  bottom: 34px;
  left: 12px;
  transform: rotate(2deg);
  padding: 17px 20px;
}
.float-bottom strong {
  font-size: 14px;
  font-weight: 600;
}
.float-bottom small {
  display: block;
  color: #8c8d87;
  font-size: 11px;
  margin-top: 2px;
}
.waveform {
  display: flex;
  gap: 3px;
  align-items: center;
  height: 31px;
  padding: 0 4px;
}
.waveform i {
  display: block;
  width: 3px;
  border-radius: 5px;
  background: #ec753b;
  height: 14px;
  animation: wave 1.7s ease-in-out infinite alternate;
}
.waveform i:nth-child(2n) {
  height: 26px;
  animation-delay: -0.7s;
}
.waveform i:nth-child(3n) {
  height: 19px;
  animation-delay: -1.2s;
}
.waveform i:nth-child(5) {
  height: 33px;
}
.demo-caption {
  position: absolute;
  bottom: 33px;
  right: 30px;
  color: #8b8177;
  font-size: 10px;
}
.capability-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 28px 0;
  color: #565952;
  font-size: 14px;
}
.capability-strip > span {
  display: flex;
  align-items: center;
  gap: 10px;
}
.capability-strip b {
  font-size: 19px;
  font-weight: 500;
  color: #656b5d;
}
.capability-strip .strip-intro {
  font-size: 12px;
  color: #8b8e85;
}
.site-footer {
  display: flex;
  gap: 30px;
  justify-content: space-between;
  align-items: center;
  min-height: 140px;
  font-size: 12px;
  color: #83867e;
}
.site-footer .brand {
  font-size: 20px;
  color: var(--ink);
}
.site-footer p {
  margin: 0;
}
.site-footer .brand-en {
  font-size: 8px;
}
.section-space {
  padding-block: 108px;
}
.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 45px;
  align-items: flex-end;
  margin-bottom: 47px;
}
.section-heading .eyebrow,
.scheme-intro .eyebrow,
.faq-section .eyebrow {
  font-size: 10px;
  letter-spacing: 2px;
  color: #8a6b57;
  margin-bottom: 20px;
}
h2 {
  font-size: 44px;
  line-height: 1.35;
  letter-spacing: -1.5px;
  font-weight: 700;
  margin-bottom: 0;
}
.section-description {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
  margin: 22px 0 4px;
  max-width: 400px;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.feature-card {
  background: #fff;
  border: 1px solid var(--line);
  padding: 27px 30px 29px;
  border-radius: var(--radius);
  transition:
    transform 0.25s,
    box-shadow 0.25s;
}
.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px #24271d07;
}
.feature-number {
  font-size: 11px;
  color: #96988f;
  letter-spacing: 1px;
}
.feature-icon {
  width: 49px;
  height: 49px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: #fff4ec;
  color: #d65d22;
  margin: 31px 0 23px;
}
.feature-icon svg {
  width: 27px;
  height: 27px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.feature-card h3 {
  font-size: 20px;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}
.feature-card p {
  font-size: 14px;
  color: #797b72;
  line-height: 1.95;
  margin-bottom: 27px;
}
.mini-keys,
.feature-tags {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: #898c81;
  min-height: 27px;
}
.mini-keys span + kbd {
  margin-left: 6px;
}
kbd {
  display: inline-block;
  background: #f5f6f2;
  border: 1px solid #e4e5df;
  border-bottom-width: 2px;
  padding: 1px 7px;
  border-radius: 5px;
  font: 11px/1.9 var(--font);
  color: #6a6e60;
}
.feature-tags span {
  background: #f5f6f2;
  border-radius: 5px;
  padding: 3px 9px;
}
.experience-section {
  background: #20241f;
  color: #f1f3ed;
  padding: 91px 0 38px;
  position: relative;
  overflow: hidden;
}
.experience-section:before {
  content: "";
  position: absolute;
  width: 560px;
  height: 560px;
  right: -120px;
  top: -250px;
  background: radial-gradient(circle, #9da47c10 0, transparent 70%);
  pointer-events: none;
}
.experience-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 40px;
  gap: 40px;
}
.experience-heading .eyebrow {
  font-size: 10px;
  letter-spacing: 2px;
  color: #a5ab96;
  margin-bottom: 18px;
}
.experience-heading h2 {
  font-size: 43px;
}
.experience-heading > p {
  font-size: 15px;
  color: #a3aa9b;
  line-height: 1.9;
  margin: 0 0 5px;
}
.demo-tabs {
  display: flex;
  gap: 28px;
  border-bottom: 1px solid #454b3f;
}
.demo-tabs button {
  border: 0;
  border-bottom: 2px solid transparent;
  background: none;
  padding: 16px 6px 17px;
  color: #a6ac9e;
  font-size: 14px;
  min-width: 90px;
  transition:
    color 0.2s,
    border-color 0.2s;
}
.demo-tabs button:hover {
  color: #fff;
}
.demo-tabs button[aria-selected="true"] {
  border-color: #fb9454;
  color: #ffb383;
}
.interactive-demo {
  display: grid;
  grid-template-columns: 0.7fr 1fr;
  align-items: center;
  gap: 80px;
  padding: 46px 30px 20px 6px;
  min-height: 355px;
}
.demo-explanation > span {
  font-size: 10px;
  letter-spacing: 1.8px;
  color: #a3ab92;
}
.demo-explanation h3 {
  font-size: 29px;
  line-height: 1.6;
  font-weight: 500;
  margin: 15px 0 12px;
  letter-spacing: 0.5px;
}
.demo-explanation > p {
  font-size: 14px;
  color: #a5ad99;
  line-height: 1.9;
  max-width: 315px;
  margin-bottom: 24px;
}
.demo-tip {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #a0a88f;
  font-size: 11px;
}
.demo-tip kbd {
  background: #32392b;
  border-color: #454e3c;
  color: #d9e0cb;
  font-size: 10px;
  white-space: nowrap;
}
.demo-explanation .demo-local-note {
  font-size: 10px;
  color: #b3bba6;
  margin-top: 21px;
  margin-bottom: 0;
}
.demo-workspace {
  border-radius: 13px;
  background: #fdfdfb;
  color: var(--ink);
  border: 1px solid #d5dace;
  box-shadow: 0 22px 45px #00000020;
  overflow: hidden;
  align-self: center;
}
.workspace-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #f5f6f1;
  border-bottom: 1px solid #e4e7dc;
  padding: 14px 19px;
  font-size: 12px;
  color: #59604f;
}
.workspace-header > span:first-child {
  display: flex;
  align-items: center;
  gap: 7px;
}
.workspace-badge {
  border: 1px solid #dde0d6;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 10px;
  color: #7a826c;
}
.workspace-body {
  padding: 22px;
}
.workspace-body label {
  display: block;
  font-size: 11px;
  color: #878f7a;
  margin-bottom: 12px;
}
.workspace-body textarea {
  display: block;
  width: 100%;
  border: 0;
  outline: 0 !important;
  background: transparent;
  color: #33392b;
  resize: vertical;
  font-size: 17px;
  line-height: 1.85;
  min-height: 107px;
  max-height: 300px;
  padding: 3px 0;
  margin: 0;
}
.workspace-body textarea:focus {
  box-shadow: 0 2px 0 #f1975f;
}
.workspace-body textarea[readonly] {
  resize: none;
  cursor: default;
}
.workspace-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-top: 14px;
}
.workspace-bottom > span {
  font-size: 11px;
  color: #8a917e;
}
.workspace-bottom .button {
  font-size: 12px;
  min-height: 36px;
  padding: 7px 14px;
  border-radius: 6px;
}
.demo-result {
  background: #f5f7f0;
  border: 1px solid #e7ebdd;
  margin-top: 18px;
  padding: 15px;
  border-radius: 8px;
}
.demo-result > span {
  font-size: 10px;
  color: #728258;
}
.demo-result p {
  font-size: 15px;
  line-height: 1.9;
  margin: 7px 0 0;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}
.demo-result[hidden] {
  display: none;
}
.demo-status {
  font-size: 11px;
  color: #696f5e;
  margin: 9px 0 0;
  min-height: 1em;
}
.experience-note {
  font-size: 11px;
  color: #abb39e;
  border-top: 1px solid #3c4434;
  padding-top: 23px;
  line-height: 1.9;
  margin: 25px 0 0;
  text-align: center;
}
.schemes-section {
  display: grid;
  grid-template-columns: 0.8fr 1fr;
  gap: 90px;
  align-items: center;
}
.scheme-intro h2 {
  font-size: 45px;
}
.scheme-note {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: 27px;
  font-size: 12px;
  color: #747b66;
}
.small-check {
  width: 18px;
  height: 18px;
  background: #eff1e9;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 10px;
  color: #66784f;
}
.scheme-cards {
  display: grid;
  gap: 16px;
}
.scheme-card {
  display: flex;
  align-items: center;
  gap: 25px;
  padding: 24px 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
}
.scheme-card h3 {
  font-size: 17px;
  margin: 0 0 7px;
  font-weight: 650;
}
.scheme-card p {
  font-size: 13px;
  color: #828577;
  line-height: 1.9;
  margin: 0;
}
.scheme-pinyin {
  padding: 26px 28px;
  background: #f4f2eb;
  position: relative;
  gap: 24px;
}
.scheme-symbol {
  font-size: 47px;
  line-height: 1.3;
  font-weight: 600;
  position: relative;
  min-width: 63px;
}
.scheme-symbol > span {
  position: absolute;
  left: 0;
  right: 0;
  top: -10px;
  text-align: center;
  font-size: 10px;
  letter-spacing: 2px;
  font-weight: 400;
  color: #969784;
}
.scheme-tag {
  position: absolute;
  right: 21px;
  top: 18px;
  font-size: 9px;
  letter-spacing: 1.5px;
  color: #a2a28e;
}
.scheme-letter {
  font-family: Georgia, serif;
  font-size: 35px;
  letter-spacing: -3px;
  width: 52px;
  flex: none;
  color: #bf7048;
}
.shape-letter {
  font-family: var(--font);
  font-size: 31px;
  letter-spacing: 0;
  color: #858e6d;
}
.guide-section {
  background: #f1f2ee;
  border-block: 1px solid #e9eae5;
  padding: 90px 0 65px;
}
.guide-section h2 {
  font-size: 40px;
}
.guide-steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 60px;
  margin: 0;
  padding: 0;
}
.guide-steps li {
  position: relative;
}
.step-number {
  font-family: Georgia, serif;
  font-size: 50px;
  font-weight: 400;
  color: #a7af99;
  line-height: 1.1;
  display: block;
  padding-bottom: 20px;
  margin-bottom: 23px;
  border-bottom: 1px solid #d9ddcf;
}
.guide-steps h3 {
  font-size: 20px;
  margin-bottom: 13px;
}
.guide-steps p {
  font-size: 14px;
  line-height: 1.9;
  color: #747c67;
  margin-bottom: 18px;
}
.guide-steps code,
.guide-footnote code {
  font:
    12px/1.8 Consolas,
    monospace;
  overflow-wrap: anywhere;
  color: #596047;
}
.underlined-link {
  color: #ba521f;
  border-bottom: 1px solid #ddb397;
  padding-bottom: 3px;
  font-size: 13px;
}
.underlined-link:hover {
  color: #8c3c15;
  border-color: #8c3c15;
}
.step-detail {
  font-size: 11px;
  color: #919984;
}
.guide-footnote {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  border-top: 1px solid #d9ddcf;
  padding-top: 23px;
  margin-top: 42px;
  font-size: 12px;
  color: #7e876e;
}
.guide-footnote p {
  margin: 0;
}
.guide-footnote > span {
  font-size: 15px;
  line-height: 1.6;
}
.faq-section {
  display: grid;
  grid-template-columns: 0.6fr 1fr;
  gap: 95px;
  padding-bottom: 100px;
}
.faq-section h2 {
  font-size: 43px;
}
.faq-section .section-description {
  font-size: 14px;
  margin-top: 20px;
}
.faq-list {
  border-top: 1px solid var(--line);
}
.faq-list details {
  border-bottom: 1px solid var(--line);
}
.faq-list summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  gap: 20px;
  font-size: 15px;
  font-weight: 550;
  padding: 24px 0;
  cursor: pointer;
}
.faq-list summary::-webkit-details-marker {
  display: none;
}
.faq-list summary > span {
  font-size: 21px;
  font-weight: 300;
  line-height: 1;
  color: #8a8f81;
  transition: transform 0.2s;
}
.faq-list details[open] summary > span {
  transform: rotate(45deg);
  color: var(--orange);
}
.faq-list details[open] summary {
  color: var(--orange);
}
.faq-answer {
  font-size: 14px;
  line-height: 2;
  color: #717767;
  padding: 0 30px 23px 0;
}
.faq-answer p {
  margin: 0;
}
.faq-answer a {
  font-size: inherit;
}
.download-section {
  border-radius: 25px;
  background: #ee601c;
  color: #fff;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  position: relative;
  overflow: hidden;
  min-height: 430px;
  padding: 55px 66px;
}
.download-copy {
  position: relative;
  z-index: 2;
}
.download-section .eyebrow {
  color: #ffe0c5;
  font-size: 9px;
  letter-spacing: 1.8px;
  margin-bottom: 20px;
}
.download-section h2 {
  font-size: 43px;
  letter-spacing: -1px;
  line-height: 1.4;
}
.download-copy > p:not(.eyebrow) {
  color: #ffe5d0;
  font-size: 14px;
  margin: 16px 0 27px;
}
.button-white {
  background: #fff;
  color: #ba420c;
  box-shadow: 0 6px 12px #8f330018;
  font-size: 14px;
  min-height: 50px;
}
.button-white:hover {
  background: #fff6ef;
  box-shadow: 0 10px 30px #8f330030;
}
.download-note {
  display: block;
  color: #ffe2cf;
  font-size: 10px;
  margin-top: 14px;
}
.download-brand-art {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  isolation: isolate;
}
.download-brand-art img {
  width: 220px;
  height: 220px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.9;
  transform: rotate(-7deg);
  position: relative;
  z-index: 2;
}
.brand-ring {
  position: absolute;
  width: 330px;
  height: 330px;
  border: 1px solid #ffb086;
  border-radius: 50%;
  opacity: 0.5;
}
.brand-ring:before,
.brand-ring:after {
  content: "";
  position: absolute;
  border: 1px solid #ffb086;
  border-radius: 50%;
}
.brand-ring:before {
  inset: -40px;
}
.brand-ring:after {
  inset: -80px;
}
.download-brand-art > span {
  position: absolute;
  bottom: 6px;
  font-size: 9px;
  letter-spacing: 3px;
  color: #ffd8bd;
}
.footer-links {
  display: flex;
  gap: 20px;
  font-size: 11px;
}
.footer-links a:hover {
  color: var(--orange);
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}
@keyframes wave {
  to {
    transform: scaleY(0.6);
  }
}
@media (min-width: 1550px) {
  .hero {
    min-height: 700px;
  }
  .hero-stage {
    height: 490px;
  }
  .editor-window {
    width: 100%;
  }
}
@media (max-width: 1100px) {
  .container {
    width: calc(100% - 64px);
  }
  .hero {
    gap: 18px;
    min-height: 610px;
    padding-block: 60px 80px;
  }
  .hero-stage {
    height: 420px;
    margin-right: 0;
  }
  .editor-document {
    padding: 25px 16px;
    gap: 15px;
  }
  .editor-document p {
    font-size: 18px;
    letter-spacing: 0;
  }
  .editor-titlebar {
    gap: 10px;
  }
  .candidate-panel {
    margin-left: 33px;
    min-width: 280px;
  }
  .candidate-list {
    gap: 3px;
    font-size: 13px;
  }
  .editor-toolbar {
    gap: 13px;
  }
  .float-top {
    top: 10px;
    right: 0;
  }
  .float-bottom {
    bottom: 17px;
    left: 0;
  }
  .demo-caption {
    bottom: 24px;
    right: 10px;
  }
  .stage-orbit {
    width: 360px;
    height: 360px;
  }
  .hero-actions {
    gap: 18px;
  }
  .button {
    padding-inline: 19px;
  }
  .site-header nav {
    gap: 22px;
    margin-right: 8px;
  }
  .capability-strip {
    font-size: 13px;
  }
  .strip-intro {
    max-width: 100px;
  }
  .stage-caption {
    left: 20px;
    bottom: -5px;
  }
}
@media (max-width: 800px) {
  .container {
    width: calc(100% - 40px);
  }
  .site-header {
    height: 76px;
  }
  .brand {
    font-size: 22px;
  }
  .site-header nav {
    gap: 17px;
    font-size: 13px;
  }
  .nav-download {
    display: none;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 25px;
    text-align: center;
    padding-block: 45px 58px;
  }
  .hero-copy {
    position: relative;
    z-index: 4;
  }
  .eyebrow,
  .hero-actions,
  .hero-meta {
    justify-content: center;
  }
  h1 {
    font-size: 65px;
    line-height: 1.2;
    margin-bottom: 24px;
  }
  .hero-description {
    font-size: 16px;
  }
  .eyebrow {
    font-size: 12px;
    margin-bottom: 22px;
  }
  .hero-stage {
    height: 430px;
    width: min(580px, 100%);
    margin: auto;
  }
  .editor-window {
    text-align: left;
    width: 88%;
  }
  .editor-document p {
    font-size: 20px;
  }
  .editor-document {
    padding: 24px 20px;
    gap: 19px;
  }
  .candidate-panel {
    margin-left: 46px;
  }
  .float-top {
    right: 17px;
  }
  .float-bottom {
    left: 16px;
  }
  .stage-caption {
    left: 30px;
  }
  .demo-caption {
    right: 15px;
  }
  .capability-strip {
    flex-wrap: wrap;
    justify-content: center;
    column-gap: 24px;
    row-gap: 18px;
    padding: 25px 0;
  }
  .capability-strip .strip-intro {
    max-width: none;
    flex: 0 0 100%;
    justify-content: center;
  }
  .site-footer {
    flex-wrap: wrap;
    padding-block: 30px;
    gap: 18px;
  }
  .site-footer p {
    display: none;
  }
}
@media (max-width: 520px) {
  .container {
    width: calc(100% - 40px);
  }
  .nav-wrap {
    gap: 18px;
  }
  .menu-toggle {
    display: block;
  }
  .menu-toggle span {
    height: 2px;
    background: var(--ink);
    display: block;
    margin: 6px 0;
    transition: transform 0.2s;
  }
  .menu-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(4px) rotate(45deg);
  }
  .menu-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-4px) rotate(-45deg);
  }
  .site-header nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 76px;
    background: var(--page);
    padding: 20px 28px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 8px 15px #00000005;
    margin: 0;
    flex-direction: column;
    gap: 12px;
  }
  .site-header nav.open {
    display: flex;
  }
  .hero {
    padding-top: 37px;
    gap: 20px;
    padding-bottom: 44px;
  }
  .eyebrow {
    font-size: 11px;
  }
  h1 {
    font-size: 53px;
    letter-spacing: -2px;
  }
  .hero-description {
    font-size: 15px;
    line-height: 1.95;
  }
  .hero-actions {
    gap: 21px;
  }
  .hero-actions .button {
    font-size: 14px;
    padding: 14px 20px;
    min-height: 52px;
  }
  .text-link {
    font-size: 13px;
  }
  .hero-meta {
    font-size: 10px;
    gap: 11px;
  }
  .hero-meta span + span {
    padding-left: 11px;
  }
  .hero-stage {
    height: 340px;
    margin-top: 10px;
  }
  .editor-window {
    width: 96%;
    border-radius: 10px;
  }
  .editor-titlebar {
    font-size: 9px;
    gap: 10px;
    padding: 10px 12px;
  }
  .editor-brand {
    font-size: 10px;
  }
  .editor-brand img {
    width: 18px;
    height: 18px;
  }
  .window-controls {
    font-size: 11px;
  }
  .editor-document {
    padding: 21px 12px 16px;
    gap: 11px;
    min-height: 100px;
  }
  .editor-document p {
    font-size: 16px;
    line-height: 1.9;
  }
  .editor-line-number {
    font-size: 9px;
  }
  .editor-caret {
    height: 18px;
    vertical-align: -3px;
  }
  .candidate-panel {
    margin: 0 12px 16px 31px;
    min-width: 0;
    padding: 8px 10px;
  }
  .pinyin {
    font-size: 11px;
    margin-bottom: 7px;
  }
  .candidate-list {
    font-size: 11px;
    gap: 3px;
  }
  .candidate-list small {
    font-size: 9px;
  }
  .candidate-list > span {
    padding: 2px 5px;
  }
  .editor-toolbar {
    padding: 9px 12px;
    font-size: 9px;
    gap: 14px;
  }
  .toolbar-submit {
    font-size: 8px;
  }
  .floating-label {
    padding: 10px 12px;
    gap: 9px;
    border-radius: 9px;
  }
  .float-top {
    top: 0;
    right: 0;
    font-size: 11px;
  }
  .sparkle {
    font-size: 24px;
  }
  .float-bottom {
    bottom: 10px;
    left: 0;
    padding: 12px 14px;
  }
  .float-bottom strong {
    font-size: 12px;
  }
  .float-bottom small {
    font-size: 9px;
  }
  .waveform {
    height: 24px;
    gap: 2px;
  }
  .waveform i {
    width: 2px;
  }
  .stage-orbit {
    width: 290px;
    height: 290px;
  }
  .stage-caption {
    display: none;
  }
  .demo-caption {
    bottom: 22px;
    right: 4px;
    font-size: 9px;
  }
  .capability-strip {
    column-gap: 20px;
    font-size: 12px;
  }
  .capability-strip > span:not(.strip-intro) {
    width: calc(50% - 10px);
    justify-content: center;
  }
  .capability-strip b {
    font-size: 17px;
  }
  .site-footer {
    font-size: 10px;
  }
  .hero-stage:before {
    inset: 15px -20px;
  }
  .stage-grid {
    inset: 0 -10px;
  }
}
@media (max-width: 1100px) {
  .section-space {
    padding-block: 85px;
  }
  .feature-card {
    padding: 24px;
  }
  .feature-card h3 {
    font-size: 18px;
  }
  .feature-grid {
    gap: 17px;
  }
  .interactive-demo {
    gap: 40px;
    padding-right: 0;
  }
  .schemes-section {
    gap: 50px;
  }
  .scheme-card {
    padding: 22px;
    gap: 19px;
  }
  .guide-steps {
    gap: 38px;
  }
  .faq-section {
    gap: 55px;
  }
  .download-section {
    padding: 48px;
  }
  .download-brand-art img {
    width: 190px;
    height: 190px;
  }
  .brand-ring {
    width: 275px;
    height: 275px;
  }
  .site-footer {
    gap: 20px;
  }
  .site-footer > p {
    display: none;
  }
}
@media (max-width: 800px) {
  .section-space {
    padding-block: 65px;
  }
  h2,
  .scheme-intro h2,
  .experience-heading h2,
  .faq-section h2 {
    font-size: 37px;
  }
  .section-heading {
    gap: 25px;
    align-items: flex-start;
    margin-bottom: 30px;
  }
  .section-description {
    font-size: 14px;
  }
  .section-heading > .section-description {
    max-width: 260px;
    align-self: flex-end;
    font-size: 14px;
  }
  .feature-grid {
    gap: 14px;
  }
  .feature-card {
    padding: 21px 18px;
  }
  .feature-card h3 {
    font-size: 16px;
  }
  .feature-card p {
    font-size: 13px;
  }
  .feature-number {
    font-size: 9px;
  }
  .feature-icon {
    margin-top: 23px;
    margin-bottom: 18px;
  }
  .mini-keys {
    flex-wrap: wrap;
    gap: 6px;
    font-size: 10px;
  }
  .mini-keys span + kbd {
    margin-left: 0;
  }
  .feature-tags {
    flex-wrap: wrap;
    font-size: 10px;
    gap: 5px;
  }
  .feature-tags span {
    padding-inline: 7px;
  }
  .experience-section {
    padding: 65px 0 32px;
  }
  .experience-heading > p {
    font-size: 13px;
  }
  .interactive-demo {
    grid-template-columns: 0.7fr 1fr;
    gap: 30px;
    padding: 30px 0 12px;
    min-height: 350px;
  }
  .demo-explanation h3 {
    font-size: 24px;
  }
  .demo-explanation > p {
    font-size: 13px;
  }
  .demo-tip {
    flex-wrap: wrap;
    font-size: 10px;
  }
  .workspace-body {
    padding: 17px;
  }
  .workspace-body textarea {
    font-size: 15px;
    min-height: 118px;
  }
  .workspace-header {
    padding: 12px;
    font-size: 11px;
  }
  .workspace-header img {
    width: 20px;
    height: 20px;
  }
  .demo-tabs {
    gap: 25px;
  }
  .experience-note {
    font-size: 10px;
    text-align: left;
  }
  .schemes-section {
    grid-template-columns: 0.8fr 1fr;
    gap: 27px;
  }
  .scheme-card {
    padding: 20px 17px;
    gap: 15px;
  }
  .scheme-card h3 {
    font-size: 15px;
  }
  .scheme-card p {
    font-size: 12px;
  }
  .scheme-letter {
    width: 37px;
    font-size: 30px;
  }
  .scheme-symbol {
    font-size: 40px;
    min-width: 40px;
  }
  .scheme-tag {
    display: none;
  }
  .guide-section {
    padding: 65px 0 40px;
  }
  .guide-section h2 {
    font-size: 34px;
  }
  .guide-steps {
    gap: 27px;
  }
  .guide-steps h3 {
    font-size: 17px;
  }
  .guide-steps p {
    font-size: 13px;
  }
  .step-detail {
    font-size: 10px;
  }
  .guide-footnote {
    font-size: 11px;
  }
  .faq-section {
    gap: 35px;
    grid-template-columns: 0.6fr 1fr;
  }
  .faq-list summary {
    font-size: 14px;
    line-height: 1.8;
  }
  .faq-answer {
    font-size: 13px;
  }
  .download-section {
    padding: 42px;
    min-height: 375px;
  }
  .download-section h2 {
    font-size: 36px;
  }
  .download-brand-art img {
    width: 165px;
    height: 165px;
  }
  .brand-ring {
    width: 230px;
    height: 230px;
  }
  .download-note {
    font-size: 9px;
  }
  .site-footer {
    justify-content: space-between;
    gap: 20px;
    min-height: 130px;
  }
  .footer-links {
    gap: 16px;
  }
}
@media (max-width: 620px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .feature-card {
    padding: 26px;
    display: grid;
    grid-template-columns: 1fr auto;
    column-gap: 16px;
  }
  .feature-number {
    grid-column: 1;
    font-size: 11px;
  }
  .feature-icon {
    grid-column: 2;
    grid-row: 1 / 3;
    margin: 0;
  }
  .feature-card h3 {
    grid-column: 1;
    font-size: 20px;
    margin-top: 12px;
  }
  .feature-card p {
    grid-column: 1 / -1;
    font-size: 15px;
    margin-bottom: 18px;
  }
  .feature-tags,
  .mini-keys {
    grid-column: 1 / -1;
    font-size: 12px;
  }
  .feature-tags span {
    padding: 3px 10px;
  }
  .mini-keys kbd {
    font-size: 12px;
  }
  .section-heading {
    display: block;
  }
  .section-heading > .section-description {
    max-width: none;
    font-size: 15px;
    margin-top: 21px;
  }
  .experience-heading {
    align-items: flex-end;
    gap: 20px;
  }
  .experience-heading > p {
    font-size: 12px;
  }
  .demo-tabs {
    gap: 0;
    justify-content: space-between;
  }
  .demo-tabs button {
    min-width: 0;
    font-size: 13px;
    flex: 1;
    padding: 16px 4px;
  }
  .interactive-demo {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-top: 27px;
  }
  .demo-explanation h3 {
    font-size: 26px;
    line-height: 1.4;
    margin-top: 10px;
  }
  .demo-explanation h3 br {
    display: none;
  }
  .demo-explanation > p {
    max-width: none;
    font-size: 14px;
    margin-bottom: 13px;
  }
  .demo-tip {
    font-size: 12px;
  }
  .demo-explanation .demo-local-note {
    margin-top: 12px;
    font-size: 11px;
  }
  .workspace-body {
    padding: 21px;
  }
  .workspace-body textarea {
    font-size: 17px;
    min-height: 107px;
  }
  .workspace-header {
    padding: 13px 18px;
    font-size: 12px;
  }
  .workspace-body label,
  .workspace-bottom > span {
    font-size: 12px;
  }
  .workspace-bottom .button {
    font-size: 13px;
    padding: 8px 15px;
  }
  .demo-status {
    font-size: 12px;
  }
  .demo-result > span {
    font-size: 12px;
  }
  .experience-note {
    font-size: 12px;
    margin-top: 19px;
  }
  .schemes-section {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .scheme-intro .section-description {
    font-size: 15px;
    margin-top: 18px;
  }
  .scheme-note {
    font-size: 12px;
    margin-top: 17px;
  }
  .scheme-card {
    padding: 24px;
    gap: 25px;
  }
  .scheme-card h3 {
    font-size: 17px;
  }
  .scheme-card p {
    font-size: 14px;
  }
  .scheme-symbol {
    font-size: 45px;
    min-width: 52px;
  }
  .scheme-letter {
    width: 52px;
    font-size: 34px;
  }
  .scheme-pinyin {
    padding-block: 27px;
  }
  .scheme-tag {
    display: block;
  }
  .guide-steps {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .guide-steps li {
    padding-left: 64px;
  }
  .step-number {
    position: absolute;
    top: 4px;
    left: 0;
    border: 0;
    font-size: 36px;
    padding: 0;
    margin: 0;
  }
  .guide-steps h3 {
    font-size: 19px;
    margin-bottom: 10px;
  }
  .guide-steps p {
    font-size: 15px;
    margin-bottom: 14px;
  }
  .guide-steps code {
    font-size: 12px;
  }
  .underlined-link {
    font-size: 14px;
  }
  .step-detail {
    font-size: 12px;
  }
  .guide-footnote {
    font-size: 12px;
    margin-top: 31px;
  }
  .faq-section {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .faq-section h2 br {
    display: none;
  }
  .faq-section h2 {
    font-size: 33px;
  }
  .faq-section .section-description {
    font-size: 15px;
    margin-top: 15px;
  }
  .faq-list summary {
    font-size: 15px;
    padding: 21px 0;
  }
  .faq-answer {
    font-size: 15px;
    padding-right: 20px;
  }
  .download-section {
    padding: 35px 29px;
    min-height: 405px;
    grid-template-columns: 1fr;
    border-radius: 19px;
  }
  .download-section h2 {
    font-size: 37px;
  }
  .download-brand-art {
    position: absolute;
    right: -40px;
    top: 82px;
    opacity: 0.25;
    width: 195px;
    height: 230px;
    z-index: 0;
  }
  .download-brand-art img {
    width: 135px;
    height: 135px;
  }
  .brand-ring {
    width: 185px;
    height: 185px;
  }
  .download-brand-art > span {
    display: none;
  }
  .download-copy > p:not(.eyebrow) {
    font-size: 14px;
  }
  .download-section .eyebrow {
    font-size: 9px;
    letter-spacing: 1.3px;
  }
  .download-note {
    font-size: 11px;
  }
  .button-white {
    font-size: 14px;
  }
  .site-footer {
    display: grid;
    grid-template-columns: 1fr auto;
    padding-top: 35px;
    padding-bottom: 28px;
    row-gap: 28px;
    font-size: 11px;
  }
  .footer-links {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: flex-start;
    font-size: 12px;
    gap: 25px;
  }
  .site-footer > .brand {
    font-size: 20px;
  }
  .site-footer > span {
    font-size: 11px;
  }
}
@media (max-width: 380px) {
  .hero-actions {
    gap: 14px;
  }
  .hero-actions .button {
    padding-inline: 14px;
    font-size: 13px;
  }
  h1 {
    font-size: 47px;
  }
  .text-caret {
    width: 4px;
    margin-left: 7px;
  }
  .hero-description {
    font-size: 14px;
  }
  .hero-stage {
    height: 320px;
  }
  .editor-document p {
    font-size: 14px;
  }
  .candidate-panel {
    margin-left: 20px;
  }
  .editor-toolbar {
    gap: 8px;
  }
  .experience-heading h2 {
    font-size: 32px;
  }
  .experience-heading > p {
    font-size: 11px;
  }
  .demo-explanation h3 {
    font-size: 23px;
  }
  .download-section {
    padding-inline: 25px;
  }
  .download-section h2 {
    font-size: 34px;
  }
  .brand-en {
    font-size: 8px;
  }
}
.feature-card p,
.guide-steps p,
.faq-answer,
.demo-explanation > p {
  font-size: 16px;
}
.scheme-card p {
  font-size: 15px;
}
.section-description,
.section-heading > .section-description {
  font-size: 16px;
}
.feature-number,
.hero-meta,
.scheme-note,
.step-detail,
.guide-footnote,
.download-note,
.footer-links,
.site-footer > span,
.experience-note {
  font-size: 12px;
}
.workspace-body label,
.workspace-header,
.workspace-bottom .button {
  font-size: 14px;
}
.workspace-bottom > span,
.workspace-badge,
.demo-status,
.demo-result > span,
.demo-tip,
.demo-explanation .demo-local-note {
  font-size: 12px;
}
.section-heading .eyebrow,
.scheme-intro .eyebrow,
.faq-section .eyebrow,
.experience-heading .eyebrow {
  font-size: 12px;
  letter-spacing: 1.6px;
}
.not-found {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding-block: 70px;
}
.not-found > img {
  margin-bottom: 30px;
}
.not-found h1 {
  font-size: clamp(36px, 6vw, 66px);
}
.not-found > p:not(.eyebrow) {
  color: var(--muted);
}
@media (max-width: 620px) {
  .hero-meta {
    font-size: 12px;
    gap: 8px;
  }
  .hero-meta span + span {
    padding-left: 8px;
  }
  .experience-heading > p {
    font-size: 12px;
  }
  .section-heading .eyebrow,
  .scheme-intro .eyebrow,
  .faq-section .eyebrow,
  .experience-heading .eyebrow {
    font-size: 11px;
  }
  .workspace-header {
    font-size: 13px;
  }
  .hero-description {
    font-size: 16px;
  }
  .feature-card p,
  .guide-steps p,
  .faq-answer,
  .demo-explanation > p {
    font-size: 16px;
  }
  .guide-steps {
    gap: 35px;
  }
  .demo-tip {
    line-height: 1.9;
  }
  .demo-explanation h3 {
    line-height: 1.6;
  }
  .workspace-body label {
    font-size: 13px;
  }
  .site-footer > span {
    font-size: 11px;
  }
  .scheme-card p {
    font-size: 15px;
  }
  .download-section .eyebrow {
    font-size: 10px;
    letter-spacing: 1px;
  }
  .demo-local-note {
    line-height: 1.8;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *:before,
  *:after {
    animation: none !important;
    transition: none !important;
  }
}