:root {
  --ink: #151b18;
  --body: #505a55;
  --muted: #8a958f;
  --line: #dde3e0;
  --line-soft: #e5e9e7;
  --surface: #ffffff;
  --canvas: #f7f9f8;
  --dark: #0d1411;
  --dark-soft: #171f1b;
  --yellow: #ffc83d;
  --yellow-soft: #fff7d8;
  --green: #12a36d;
  --green-soft: #e6f6ef;
  --container: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--canvas);
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--canvas);
  font-family: Inter, "SF Pro Display", "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.6;
  letter-spacing: 0;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

button,
input,
textarea {
  font: inherit;
  letter-spacing: 0;
}

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

button {
  color: inherit;
}

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

img,
svg {
  display: block;
}

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

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.icon {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: none;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  padding: 10px 14px;
  color: var(--surface);
  background: var(--ink);
  border-radius: 8px;
  transform: translateY(-140%);
}

.skip-link:focus {
  transform: translateY(0);
}

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 0 24px;
  border: 0;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 160ms ease, background-color 160ms ease, color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

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

.button-dark:hover {
  background: #242d29;
}

.button-primary {
  color: var(--ink);
  background: var(--yellow);
}

.button-primary:hover {
  background: #ffd157;
}

.section-kicker {
  display: block;
  color: var(--green);
  font-size: 13px;
  font-weight: 750;
}

.section-heading h2,
.assistant-copy h2 {
  margin: 22px 0 8px;
  font-size: 38px;
  line-height: 1.22;
  font-weight: 760;
}

.section-heading > p,
.assistant-copy > p {
  margin: 0;
  color: var(--body);
  font-size: 16px;
}

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 480ms ease var(--reveal-delay, 0ms), transform 480ms ease var(--reveal-delay, 0ms);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Header */
.site-header {
  position: relative;
  z-index: 50;
  height: 72px;
  background: #fff;
  border-bottom: 1px solid var(--line-soft);
}

.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  width: 104px;
  height: 40px;
}

.brand img {
  width: 104px;
  height: 40px;
}

.desktop-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 36px;
}

.desktop-nav a,
.login-link {
  color: #35413b;
  font-size: 14px;
  font-weight: 600;
  transition: color 160ms ease;
}

.desktop-nav a:hover,
.login-link:hover {
  color: var(--green);
}

.header-actions {
  margin-left: 34px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.button-header {
  width: 188px;
  height: 44px;
  justify-content: space-between;
  padding-inline: 32px 24px;
}

.menu-button,
.mobile-menu {
  display: none;
}

/* Hero */
.hero {
  min-height: 720px;
  color: #fff;
  background-color: var(--dark);
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
}

.hero-inner {
  min-height: 720px;
  padding-top: 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-heading {
  text-align: center;
}

.hero-badge {
  width: max-content;
  min-height: 36px;
  margin: 0 auto 22px;
  padding: 0 20px 0 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #e7ece9;
  background: var(--dark-soft);
  border: 1px solid #3a453f;
  border-radius: 18px;
  font-size: 13px;
  font-weight: 600;
}

.hero-badge i,
.time-badge i {
  width: 8px;
  height: 8px;
  display: block;
  border-radius: 50%;
  background: var(--yellow);
}

.hero h1 {
  margin: 0;
  font-size: 48px;
  line-height: 1.23;
  font-weight: 760;
}

.hero h1 .hero-question,
.hero h1 .hero-answer {
  display: inline-block;
}

.hero h1 .hero-question {
  font-size: 48px;
  white-space: nowrap;
}

.hero h1 .hero-answer {
  font-size: 50px;
}

.hero h1 strong {
  color: var(--yellow);
  font-weight: inherit;
}

.hero-heading > p {
  margin: 8px 0 0;
  color: #b8c1bc;
  font-size: 16px;
}

.hero-copy-mobile,
.mobile-input-note {
  display: none;
}

.diagnosis-form {
  position: relative;
  width: min(880px, 100%);
  min-height: 216px;
  margin-top: 26px;
  padding: 18px 24px;
  color: var(--ink);
  background: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 22px;
  box-shadow: 0 20px 60px rgba(11, 22, 18, 0.18);
}

.diagnosis-topline {
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--green);
  font-size: 12px;
  font-weight: 700;
}

.time-badge {
  min-height: 32px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #67716c;
  background: #f2f5f3;
  border-radius: 16px;
  font-weight: 500;
}

.time-badge i {
  background: var(--green);
}

.diagnosis-label {
  margin: 7px 0 8px;
  display: block;
  font-size: 13px;
  font-weight: 700;
}

.diagnosis-form textarea {
  width: 100%;
  height: 66px;
  display: block;
  padding: 20px;
  color: var(--ink);
  background: #f8faf9;
  border: 1px solid var(--line);
  border-radius: 13px;
  outline: none;
  resize: none;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.diagnosis-form textarea::placeholder,
.attachment-panel input::placeholder {
  color: #a0aaa5;
}

.diagnosis-form textarea:focus,
.attachment-panel input:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(18, 163, 109, 0.12);
}

.diagnosis-form textarea.is-invalid {
  border-color: #d94b4b;
}

.attachment-panel input[aria-invalid="true"] {
  border-color: #d94b4b;
}

.diagnosis-actions {
  margin-top: 10px;
  display: grid;
  grid-template-columns: 168px 1fr 176px;
  align-items: center;
  gap: 24px;
}

.attachment-button {
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.attachment-button .icon {
  width: 22px;
  height: 22px;
  color: #66716b;
}

.attachment-button:hover,
.attachment-button.is-active {
  border-color: var(--green);
}

.diagnosis-benefits {
  color: var(--body);
  font-size: 12px;
}

.diagnosis-submit {
  position: relative;
  width: 176px;
  height: 42px;
  justify-content: space-between;
  gap: 12px;
  padding: 0 18px 0 36px;
}

.diagnosis-submit .icon {
  flex: none;
}

.diagnosis-submit:disabled {
  cursor: wait;
  opacity: 0.7;
}

.attachment-panel {
  position: absolute;
  z-index: 4;
  top: 206px;
  left: 24px;
  right: 24px;
  min-height: 94px;
  padding: 14px;
  display: grid;
  grid-template-columns: auto minmax(180px, 1fr) auto;
  align-items: center;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 14px 35px rgba(11, 22, 18, 0.14);
}

.attachment-panel[hidden] {
  display: none;
}

.attachment-panel label {
  color: var(--body);
  font-size: 12px;
  font-weight: 650;
}

.attachment-panel input[type="url"] {
  min-width: 0;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  outline: none;
}

.workspace-upload-note {
  max-width: 180px;
  overflow: hidden;
  color: var(--muted);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.form-error {
  position: absolute;
  left: 24px;
  bottom: -30px;
  margin: 0;
  color: #ffb0a9;
  font-size: 12px;
}

.preset-row {
  margin-top: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.preset-row button {
  height: 34px;
  min-width: 118px;
  padding: 0 22px;
  color: #dde3e0;
  background: var(--dark-soft);
  border: 1px solid #3a453f;
  border-radius: 17px;
  font-size: 12px;
  cursor: pointer;
  transition: border-color 160ms ease, color 160ms ease;
}

.preset-row button:hover {
  color: var(--yellow);
  border-color: #807341;
}

.hero-steps {
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
}

.hero-steps li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #eef2f0;
  font-size: 13px;
  font-weight: 650;
}

.hero-steps li[aria-hidden="true"] {
  color: #66716b;
}

.hero-steps b {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  color: var(--dark);
  background: var(--yellow);
  border-radius: 50%;
  font-size: 13px;
}

.hero-steps li:nth-child(3) b,
.hero-steps li:nth-child(5) b {
  color: #dbe2de;
  background: #29332e;
}

.hero-steps .icon {
  width: 18px;
  height: 18px;
}

/* Scenario strip */
.scenario-section {
  min-height: 130px;
  background: #fff;
}

.scenario-inner {
  padding-top: 32px;
}

.scenario-inner h2 {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr) 1.09fr;
  gap: 20px;
}

.scenario-grid article {
  height: 38px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--canvas);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 650;
  white-space: nowrap;
}

.scenario-grid i {
  width: 12px;
  height: 12px;
  flex: none;
  border-radius: 50%;
}

.dot-yellow { background: var(--yellow); }
.dot-green { background: var(--green); }
.dot-dark { background: var(--ink); }

/* Capabilities */
.capabilities-section {
  min-height: 760px;
  background: var(--canvas);
}

.section-inner {
  padding-top: 104px;
}

.capability-grid {
  margin-top: 54px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
}

.capability-card {
  min-width: 0;
  min-height: 380px;
  padding: 32px;
}

.capability-card + .capability-card {
  border-left: 1px solid var(--line-soft);
}

.capability-index {
  display: block;
  font-size: 12px;
  font-weight: 800;
}

.capability-index.is-yellow { color: #b38100; }
.capability-index.is-green { color: #10865d; }

.capability-icon {
  width: 56px;
  height: 56px;
  margin-top: 24px;
  display: grid;
  place-items: center;
  color: var(--ink);
  background: #eef1f0;
  border-radius: 50%;
}

.capability-icon.is-yellow { background: #fff3c5; }
.capability-icon.is-green { background: var(--green-soft); }
.capability-icon .icon { width: 28px; height: 28px; stroke-width: 1.8; }

.capability-card h3 {
  margin: 22px 0 8px;
  font-size: 23px;
  line-height: 1.3;
}

.capability-card > p {
  margin: 0;
  color: var(--body);
}

.capability-card > div {
  margin-top: 54px;
  padding-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-top: 1px solid var(--line-soft);
}

.capability-card > div span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.capability-card > div strong {
  font-size: 14px;
  font-weight: 650;
}

/* AI assistant */
.assistant-section {
  min-height: 680px;
  background: #fff;
}

.assistant-layout {
  min-height: 680px;
  padding-top: 100px;
  display: grid;
  grid-template-columns: 440px minmax(0, 695px);
  justify-content: space-between;
  gap: 64px;
}

.assistant-copy h2 {
  margin-top: 26px;
}

.assistant-points {
  margin: 46px 0 44px;
  padding: 0;
  display: grid;
  gap: 25px;
  list-style: none;
}

.assistant-points li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.assistant-points b {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  background: var(--yellow);
  border-radius: 50%;
  font-size: 13px;
}

.assistant-points li:nth-child(2) b { color: var(--green); background: var(--green-soft); }
.assistant-points li:nth-child(3) b { background: #eef1f0; }

.assistant-points div {
  display: flex;
  flex-direction: column;
}

.assistant-points strong {
  font-size: 15px;
  line-height: 1.4;
}

.assistant-points span {
  margin-top: 4px;
  color: var(--body);
  font-size: 13px;
}

.assistant-copy > .button {
  width: 176px;
  justify-content: space-between;
}

.assistant-demo {
  height: 500px;
  overflow: hidden;
  background: var(--canvas);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 8px 32px rgba(16, 24, 21, 0.07);
}

.demo-header {
  height: 58px;
  padding: 0 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #fff;
  border-bottom: 1px solid var(--line-soft);
}

.demo-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.demo-brand i,
.demo-answer > i {
  width: 30px;
  height: 30px;
  overflow: hidden;
  border-radius: 9px;
}

.demo-brand img,
.demo-answer img {
  width: 30px;
  height: 30px;
  object-fit: cover;
  object-position: left;
}

.demo-project {
  padding: 5px 18px;
  color: var(--body);
  background: #f2f5f3;
  border-radius: 15px;
  font-size: 12px;
}

.demo-conversation {
  padding: 34px 72px 0;
}

.demo-user {
  margin: 0;
  padding: 13px 20px;
  color: var(--body);
  background: #fff;
  border: 1px solid #e1e6e3;
  border-radius: 16px;
  font-size: 13px;
  line-height: 1.65;
}

.demo-answer {
  margin-top: 24px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.demo-answer > div {
  flex: 1;
  min-width: 0;
}

.demo-answer strong,
.demo-answer p {
  font-size: 13px;
}

.demo-answer p {
  margin: 6px 0 14px;
  color: var(--body);
}

.demo-answer ol {
  margin: 0;
  padding: 12px 18px;
  display: grid;
  gap: 8px;
  background: #fff;
  border: 1px solid #e1e6e3;
  border-radius: 14px;
  list-style: none;
}

.demo-answer li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}

.demo-answer li b {
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  background: #fff3c5;
  border-radius: 50%;
  font-size: 10px;
}

.demo-answer li:nth-child(2) b { color: var(--green); background: var(--green-soft); }
.demo-answer li:nth-child(3) b { background: #eef1f0; }

.demo-composer {
  height: 56px;
  margin: 34px 28px 0;
  padding: 0 18px 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  background: #fff;
  border: 1px solid #d7ddda;
  border-radius: 18px;
  font-size: 13px;
}

.demo-composer button {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--ink);
  border: 0;
  border-radius: 50%;
}

.demo-composer .icon {
  width: 18px;
  height: 18px;
}

/* Documents */
.documents-section {
  min-height: 560px;
  background: var(--canvas);
}

.documents-inner {
  padding-top: 104px;
}

.documents-heading {
  position: relative;
}

.documents-heading .text-link {
  position: absolute;
  right: 30px;
  top: 36px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  font-weight: 700;
}

.text-link:hover {
  color: var(--green);
}

.document-grid {
  margin-top: 55px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.document-card {
  min-width: 0;
  height: 214px;
  padding: 20px;
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.document-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(16, 24, 21, 0.08);
}

.document-cover {
  position: relative;
  height: 142px;
  overflow: hidden;
  border-radius: 10px;
}

.cover-app {
  padding: 16px 14px;
  color: #fff;
  background: var(--ink);
}

.cover-app > i {
  width: 30px;
  height: 6px;
  display: block;
  margin-bottom: 26px;
  background: var(--yellow);
  border-radius: 3px;
}

.cover-app b,
.cover-geo b {
  font-size: 13px;
  line-height: 1.65;
}

.cover-app em {
  width: 78px;
  height: 30px;
  display: block;
  margin-top: 16px;
  background: repeating-linear-gradient(to bottom, #66716b 0 1px, transparent 1px 10px);
}

.cover-geo {
  padding-top: 22px;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--ink);
  background: #fff1b5;
}

.cover-geo i {
  width: 60px;
  height: 60px;
  margin-bottom: 14px;
  display: grid;
  place-items: center;
  background: var(--yellow);
  border-radius: 50%;
}

.cover-geo .icon { width: 32px; height: 32px; }

.cover-bd {
  display: grid;
  place-items: center;
  background: #e5f5ee;
}

.cover-bd > i {
  width: 66px;
  height: 80px;
  display: grid;
  place-items: center;
  color: var(--ink);
  background: transparent;
}

.cover-bd .icon { width: 64px; height: 76px; stroke-width: 1.5; }

.cover-bd::after {
  content: "";
  position: absolute;
  right: 15px;
  bottom: 14px;
  width: 34px;
  height: 34px;
  background: var(--green);
  border-radius: 50%;
}

.document-copy {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.document-copy small {
  color: var(--green);
  font-size: 12px;
  font-weight: 700;
}

.document-copy strong {
  margin-top: 14px;
  font-size: 18px;
  line-height: 1.45;
}

.document-copy p {
  margin: 8px 0 0;
  color: var(--body);
  font-size: 12px;
  white-space: nowrap;
}

.document-copy em {
  margin-top: auto;
  color: #a67500;
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
}

/* Workflow */
.workflow-section {
  min-height: 560px;
  background: var(--yellow-soft);
}

.workflow-inner {
  padding-top: 96px;
}

.workflow-steps {
  position: relative;
  margin: 64px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  list-style: none;
}

.workflow-steps::before {
  content: "";
  position: absolute;
  top: 32px;
  left: 5.7%;
  right: 5.7%;
  height: 2px;
  background: #d8c982;
}

.workflow-steps li {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.workflow-steps i {
  position: relative;
  z-index: 1;
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  color: var(--ink);
  background: #fff;
  border: 1px solid #d8c982;
  border-radius: 50%;
}

.workflow-steps i.is-active {
  background: var(--yellow);
  border-color: var(--yellow);
}

.workflow-steps i.is-dark {
  color: #fff;
  background: var(--ink);
  border-color: var(--ink);
}

.workflow-steps i .icon {
  width: 30px;
  height: 30px;
}

.workflow-steps strong {
  margin-top: 20px;
  font-size: 15px;
}

.workflow-steps span {
  margin-top: 2px;
  color: var(--body);
  font-size: 12px;
}

/* Membership */
.member-section {
  min-height: 320px;
  padding-top: 66px;
  background: #fff;
}

.member-card {
  min-height: 188px;
  padding: 0 40px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto 150px;
  align-items: center;
  gap: 48px;
  color: #fff;
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  border-radius: 20px;
}

.member-copy > span {
  color: var(--yellow);
  font-size: 12px;
  font-weight: 750;
}

.member-copy h2 {
  margin: 14px 0 3px;
  font-size: 28px;
  line-height: 1.35;
}

.member-copy p {
  margin: 0;
  color: #b8c1bc;
}

.member-price {
  display: flex;
  align-items: baseline;
  gap: 7px;
}

.member-price > span {
  margin-right: 10px;
  color: #b8c1bc;
  font-size: 15px;
}

.member-price strong {
  font-size: 24px;
  line-height: 1;
}

.member-price strong b {
  font-size: 38px;
}

.member-price small {
  color: #b8c1bc;
  font-size: 13px;
}

.member-card > .button {
  width: 150px;
  height: 54px;
  justify-content: space-between;
}

/* Footer */
.site-footer {
  min-height: 458px;
  color: #fff;
  background: var(--dark);
}

.footer-main {
  min-height: 320px;
  padding-top: 76px;
  display: grid;
  grid-template-columns: 320px 140px 170px 150px 120px 110px;
  justify-content: space-between;
  gap: 20px;
}

.footer-brand img {
  width: 36px;
  height: 36px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-logo span {
  color: #fff;
  font-size: 20px;
  font-weight: 750;
}

.footer-brand p {
  margin: 30px 0 42px;
  color: #a8b2ad;
  font-size: 13px;
}

.footer-brand a {
  color: var(--yellow);
  font-size: 13px;
  font-weight: 700;
}

.footer-column {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.footer-column strong {
  margin-bottom: 20px;
  font-size: 13px;
}

.footer-column a {
  margin-bottom: 10px;
  color: #a8b2ad;
  font-size: 13px;
}

.footer-column a:hover {
  color: var(--yellow);
}

.footer-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  font-size: 12px;
}

.qr-code {
  position: relative;
  width: 86px;
  height: 86px;
  background: #fff;
  border: 10px solid #fff;
  border-radius: 10px;
}

.qr-code::before,
.qr-code::after,
.qr-code span {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  border: 6px solid var(--dark);
}

.qr-code::before { top: 0; left: 0; }
.qr-code::after { top: 0; right: 0; }
.qr-code span { bottom: 0; left: 0; }
.qr-code i,
.qr-code b,
.qr-code em {
  position: absolute;
  display: block;
  background: var(--dark);
}
.qr-code i { width: 10px; height: 10px; right: 5px; bottom: 5px; }
.qr-code b { width: 8px; height: 22px; right: 23px; bottom: 0; }
.qr-code em { width: 20px; height: 8px; right: 0; bottom: 23px; }

.footer-bottom {
  height: 138px;
  padding-top: 38px;
  display: flex;
  justify-content: space-between;
  color: #6f7b75;
  border-top: 1px solid #28312d;
  font-size: 12px;
}

@media (max-width: 1100px) {
  .container { width: min(calc(100% - 40px), var(--container)); }
  .desktop-nav { gap: 22px; }
  .header-actions { margin-left: 22px; gap: 18px; }
  .assistant-layout { grid-template-columns: 36% minmax(0, 1fr); gap: 38px; }
  .demo-conversation { padding-inline: 42px; }
  .document-grid { gap: 18px; }
  .document-card { grid-template-columns: 104px minmax(0, 1fr); gap: 18px; }
  .document-copy strong { font-size: 16px; }
  .footer-main { grid-template-columns: 260px repeat(4, 1fr); }
  .footer-qr { display: none; }
}

@media (max-width: 900px) {
  .desktop-nav,
  .login-link,
  .button-header { display: none; }

  .site-header,
  .header-inner { height: 64px; }

  .header-actions { margin-left: auto; }

  .menu-button {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    padding: 0;
    color: var(--ink);
    background: #f2f5f3;
    border: 0;
    border-radius: 10px;
    cursor: pointer;
  }

  .menu-button .icon { width: 22px; height: 22px; }
  .menu-close-icon { display: none; }
  .menu-button[aria-expanded="true"] .menu-open-icon { display: none; }
  .menu-button[aria-expanded="true"] .menu-close-icon { display: block; }

  .mobile-menu {
    position: absolute;
    z-index: 30;
    top: 64px;
    left: 0;
    right: 0;
    padding: 10px 20px 18px;
    display: grid;
    background: #fff;
    border-bottom: 1px solid var(--line-soft);
    box-shadow: 0 14px 28px rgba(16, 24, 21, 0.09);
  }

  .mobile-menu[hidden] { display: none; }
  .mobile-menu a { padding: 10px 0; font-weight: 650; }

  .capability-grid { grid-template-columns: 1fr; }
  .capability-card + .capability-card { border-left: 0; border-top: 1px solid var(--line-soft); }

  .assistant-layout {
    grid-template-columns: 1fr;
    padding-bottom: 80px;
  }

  .assistant-copy { max-width: 620px; }

  .document-grid { grid-template-columns: 1fr; }
  .document-card { height: 210px; }

  .member-card { grid-template-columns: 1fr auto; padding-block: 32px; }
  .member-card > .button { grid-column: 2; }

  .footer-main { grid-template-columns: 1.5fr repeat(3, 1fr); }
  .footer-external { display: none; }
}

@media (max-width: 640px) {
  .container { width: calc(100% - 28px); }

  .brand,
  .brand img { width: 92px; height: 36px; }

  .section-heading h2,
  .assistant-copy h2 {
    margin-top: 18px;
    font-size: 28px;
    line-height: 1.32;
  }

  .section-heading > p,
  .assistant-copy > p { font-size: 13px; }

  .section-kicker { font-size: 12px; }

  .hero {
    min-height: 756px;
    background-size: 42px 42px;
  }

  .hero-inner {
    min-height: 756px;
    padding-top: 40px;
    align-items: stretch;
  }

  .hero-heading {
    order: 1;
    text-align: left;
  }

  .hero-badge {
    min-height: 32px;
    margin: 0 0 26px;
    padding-inline: 12px 15px;
    font-size: 12px;
  }

  .hero h1 {
    font-size: 28px;
    line-height: 1.35;
  }

  .hero h1 .hero-question { font-size: 28px; }
  .hero h1 .hero-answer { font-size: 34px; }

  .hero-heading > p {
    margin-top: 14px;
    font-size: 14px;
  }

  .hero-copy-desktop { display: none; }
  .hero-copy-mobile { display: block; }

  .preset-row {
    order: 2;
    margin-top: 44px;
    justify-content: flex-start;
    gap: 8px;
  }

  .preset-row button {
    min-width: 0;
    height: 32px;
    padding-inline: 16px;
    font-size: 11px;
  }

  .preset-row button:last-child { display: none; }

  .diagnosis-form {
    order: 3;
    width: 100%;
    min-height: 360px;
    margin-top: 22px;
    padding: 18px 20px;
    border-radius: 20px;
  }

  .diagnosis-label {
    margin-top: 13px;
    font-size: 12px;
  }

  .diagnosis-form textarea {
    height: 106px;
    padding: 15px;
    font-size: 16px;
    line-height: 1.55;
  }

  .mobile-input-note {
    position: absolute;
    top: 147px;
    left: 36px;
    display: block;
    color: #b0b9b4;
    font-size: 11px;
    pointer-events: none;
  }

  .diagnosis-form textarea:not(:placeholder-shown) + .mobile-input-note {
    display: none;
  }

  .diagnosis-actions {
    margin-top: 14px;
    display: grid;
    grid-template-columns: 1fr;
    grid-template-areas: "attachment" "submit" "benefits";
    gap: 10px;
  }

  .attachment-button {
    grid-area: attachment;
    width: 154px;
    height: 38px;
    font-size: 11px;
  }

  .diagnosis-submit {
    grid-area: submit;
    width: 100%;
    height: 46px;
    justify-content: center;
    padding-inline: 20px;
    font-size: 14px;
  }

  .diagnosis-submit .icon {
    position: absolute;
    right: 26px;
  }

  .diagnosis-benefits {
    grid-area: benefits;
    min-height: 39px;
    padding-top: 14px;
    border-top: 1px solid var(--line-soft);
    font-size: 11px;
  }

  .attachment-panel {
    top: 346px;
    left: 0;
    right: 0;
    grid-template-columns: 1fr;
    padding: 16px;
  }

  .attachment-panel input[type="url"] { width: 100%; font-size: 16px; }
  .form-error { left: 20px; bottom: -28px; }
  .hero-steps { display: none; }

  .scenario-section { min-height: 210px; }
  .scenario-inner { padding-top: 28px; }
  .scenario-inner h2 { font-size: 12px; }
  .scenario-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 14px; }
  .scenario-grid article {
    height: 50px;
    padding-inline: 14px;
    gap: 9px;
    border-radius: 10px;
    font-size: 11px;
  }
  .scenario-grid article:last-child { display: none; }
  .scenario-grid i { width: 10px; height: 10px; }

  .capabilities-section { min-height: 900px; }
  .section-inner { padding-top: 58px; }
  .capability-grid {
    margin-top: 40px;
    display: grid;
    gap: 16px;
    background: transparent;
    border: 0;
    border-radius: 0;
    overflow: visible;
  }
  .capability-card {
    min-height: 190px;
    padding: 20px;
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    grid-template-rows: auto auto auto;
    column-gap: 12px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
  }
  .capability-card + .capability-card { border: 1px solid var(--line); }
  .capability-index { grid-column: 2; grid-row: 1; align-self: center; font-size: 11px; }
  .capability-icon { grid-column: 1; grid-row: 1 / span 2; width: 44px; height: 44px; margin: 0; }
  .capability-icon .icon { width: 24px; height: 24px; }
  .capability-card h3 { grid-column: 2; grid-row: 2; margin: 2px 0 0; font-size: 19px; }
  .capability-card > p { grid-column: 1 / -1; grid-row: 3; margin-top: 22px; font-size: 12px; }
  .capability-card > div {
    grid-column: 1 / -1;
    margin-top: 20px;
    padding-top: 16px;
    display: block;
  }
  .capability-card > div span { display: none; }
  .capability-card > div strong { font-size: 11px; }

  .assistant-section { min-height: 780px; }
  .assistant-layout { min-height: 780px; padding-top: 58px; padding-bottom: 60px; gap: 38px; }
  .assistant-copy .assistant-points,
  .assistant-copy > .button { display: none; }
  .assistant-demo { height: 510px; border-radius: 18px; }
  .demo-header { height: 54px; padding-inline: 18px; }
  .demo-project { padding-inline: 16px; font-size: 11px; }
  .demo-conversation { padding: 24px 20px 0; }
  .demo-user { padding: 13px 16px; font-size: 12px; }
  .demo-answer { margin-top: 20px; gap: 8px; }
  .demo-answer > i { width: 32px; height: 32px; }
  .demo-answer strong,
  .demo-answer p { font-size: 12px; }
  .demo-answer ol { padding: 14px 12px; }
  .demo-answer li { font-size: 11px; }
  .demo-composer { margin: 56px 20px 0; font-size: 11px; }

  .documents-section { min-height: 1000px; }
  .documents-inner { padding-top: 58px; }
  .documents-heading .text-link { display: none; }
  .document-grid { margin-top: 40px; gap: 16px; }
  .document-card { height: 210px; padding: 18px; grid-template-columns: 104px minmax(0, 1fr); gap: 20px; }
  .document-cover { height: 140px; }
  .document-copy strong { margin-top: 13px; font-size: 17px; }
  .document-copy p { font-size: 11px; }
  .document-copy em { font-size: 11px; }

  .workflow-section { min-height: 630px; }
  .workflow-inner { padding-top: 58px; }
  .workflow-steps {
    margin: 76px 0 0 16px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .workflow-steps::before { top: 22px; bottom: 22px; left: 21px; right: auto; width: 2px; height: auto; }
  .workflow-steps li {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    grid-template-rows: auto auto;
    justify-items: start;
    column-gap: 16px;
  }
  .workflow-steps i { grid-row: 1 / 3; width: 44px; height: 44px; }
  .workflow-steps i .icon { width: 22px; height: 22px; }
  .workflow-steps strong { margin: 0; align-self: end; font-size: 15px; }
  .workflow-steps span { margin: 0; align-self: start; }

  .member-section { min-height: 400px; padding-top: 50px; }
  .member-card {
    min-height: 300px;
    padding: 34px 22px;
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: 1fr auto;
    gap: 20px 10px;
    background-size: 42px 42px;
    border-radius: 18px;
  }
  .member-copy { grid-column: 1 / -1; align-self: start; }
  .member-copy h2 { margin-top: 12px; font-size: 23px; }
  .member-copy p { font-size: 12px; }
  .member-price { align-self: center; }
  .member-price > span { display: none; }
  .member-price strong b { font-size: 36px; }
  .member-card > .button { grid-column: 2; width: 148px; height: 50px; padding-inline: 24px 18px; font-size: 13px; }

  .site-footer { min-height: 476px; }
  .footer-main {
    min-height: 388px;
    padding-top: 56px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    align-content: start;
    gap: 38px 20px;
  }
  .footer-brand { grid-column: 1 / -1; }
  .footer-brand img { width: 34px; height: 34px; }
  .footer-logo span { font-size: 19px; }
  .footer-brand p { margin: 18px 0 30px; font-size: 12px; }
  .footer-brand a { font-size: 12px; }
  .footer-column strong,
  .footer-column a { font-size: 12px; }
  .footer-column strong { margin-bottom: 12px; }
  .footer-column a { margin-bottom: 7px; }
  .footer-column a:nth-of-type(4) { display: none; }
  .footer-external,
  .footer-qr { display: none; }
  .footer-bottom {
    height: 88px;
    padding-top: 24px;
    display: block;
    font-size: 11px;
  }
  .footer-bottom span { display: block; }
  .footer-bottom span:nth-child(2) { display: none; }
  .footer-bottom span:last-child { margin-top: 4px; }
}

@media (max-width: 374px) {
  .preset-row button { padding-inline: 12px; }
  .hero h1 .hero-question { font-size: 26px; }
  .hero h1 .hero-answer { font-size: 31px; }
  .document-card { grid-template-columns: 96px minmax(0, 1fr); gap: 15px; }
  .document-copy strong { font-size: 15px; }
  .member-copy h2 { font-size: 21px; }
  .member-card > .button { width: 136px; }
}

@media (max-width: 340px) {
  .hero h1 .hero-question { font-size: 24px; }
  .hero h1 .hero-answer { font-size: 29px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}