/* 白色与浅灰建立层次，系统蓝用于操作和重点，延续简洁的产品叙事。 */
:root {
  --paper: #f5f5f7;
  --white: #fff;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --accent: #0071e3;
  --accent-dark: #005bb5;
  --line: #d2d2d7;
  --soft: #f5f5f7;
  --radius: 26px;
  --font:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
h1,
h2,
h3,
h4,
p {
  margin: 0;
}
button,
input,
a {
  -webkit-tap-highlight-color: transparent;
}
button,
input {
  font: inherit;
}
button,
a {
  touch-action: manipulation;
}
button {
  cursor: pointer;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  color: inherit;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
svg {
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
button {
  border: 0;
}
button:disabled {
  cursor: default;
}
:focus-visible {
  outline: 3px solid #5e5e64;
  outline-offset: 5px;
  border-radius: 4px;
}
[hidden] {
  display: none !important;
}
::selection {
  background: #d0d0d4;
  color: #212123;
}
.container {
  width: min(1160px, calc(100% - 96px));
  margin-inline: auto;
}
.section {
  padding-block: 100px;
}
.eyebrow {
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.15em;
  line-height: 1.7;
  color: var(--accent);
}
.section-heading h2,
.start-header h2,
.faq h2 {
  font-size: clamp(34px, 3.6vw, 50px);
  font-weight: 650;
  line-height: 1.3;
  letter-spacing: -0.045em;
  margin-top: 17px;
}
.muted-heading {
  color: #8a8b91;
}
.section-heading > p:last-child {
  font-size: 16px;
  color: var(--muted);
  line-height: 1.9;
  margin-top: 24px;
}
.actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 13px 24px;
  font-size: 13px;
  line-height: 1.6;
  font-weight: 550;
  min-height: 48px;
  white-space: nowrap;
  transition:
    background 0.2s,
    transform 0.2s,
    box-shadow 0.2s;
}
.button:hover {
  transform: translateY(-2px);
}
.button span {
  font-size: 18px;
  line-height: 1;
}
.button-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 12px #2e2e3112;
}
.button-primary:hover {
  background: var(--accent-dark);
  box-shadow: 0 8px 20px #2e2e3124;
}
.button-dark {
  background: #2c2c30;
  color: white;
}
.button-dark:hover {
  background: #444549;
}
.button-white {
  background: #fff;
  color: var(--ink);
}
.button-white:hover {
  background: #eeeeef;
}
.button-outline {
  background: transparent;
  border-color: #cacacc;
}
.button-outline:hover {
  background: #e8e8eb;
}
.button-small {
  padding: 8px 19px;
  min-height: 38px;
  font-size: 12px;
}
.text-link {
  display: inline-flex;
  gap: 17px;
  align-items: center;
  padding: 0;
  background: none;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.8;
  color: var(--accent);
  text-align: left;
}
.text-link span {
  transition: transform 0.2s;
  font-size: 18px;
}
.text-link:hover span {
  transform: translateX(3px);
}
.pill {
  display: inline-block;
  padding: 6px 13px;
  border: 1px solid #d2d2d7;
  border-radius: 999px;
  color: var(--accent);
  font-size: 11px;
  line-height: 1.5;
}
.muted {
  color: #8c8c92;
}
.fine-print {
  font-size: 11px;
  line-height: 1.9;
  color: #7b827a;
}
.status-dot {
  width: 6px;
  height: 6px;
  background: #5f5f65;
  display: inline-block;
  border-radius: 50%;
  flex: none;
}
.skip-link {
  position: fixed;
  left: 20px;
  top: -100px;
  background: var(--ink);
  color: white;
  padding: 10px 20px;
  z-index: 200;
}
.skip-link:focus {
  top: 10px;
}
/* 导航复用现有下载及后台入口，官网不接管业务路由。 */
.site-header {
  height: 76px;
  border-bottom: 1px solid #e2e2e5;
  background: #f3f3f5e8;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 30;
}
.nav-row {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}
.brand {
  display: inline-flex;
  gap: 9px;
  align-items: center;
  white-space: nowrap;
  font-weight: 650;
  font-size: 17px;
  letter-spacing: -0.03em;
}
.brand img {
  border-radius: 10px;
  object-fit: contain;
}
.primary-nav {
  display: flex;
  gap: 26px;
  align-items: center;
  font-size: 12px;
  color: #71776f;
}
.primary-nav a,
.admin-link {
  transition: color 0.2s;
}
.primary-nav a:hover,
.admin-link:hover {
  color: var(--accent);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 25px;
}
.admin-link {
  font-size: 12px;
  white-space: nowrap;
}
.admin-link span {
  font-size: 14px;
  margin-left: 5px;
}
.menu-toggle {
  display: none;
}
/* 首屏界面是原创的能力示意，不包含后台或学员真实数据。 */
.hero {
  padding-top: 70px;
  padding-bottom: 0;
  overflow: hidden;
  text-align: center;
  background: radial-gradient(ellipse at 50% 74%, #e5e5e7 0, transparent 54%);
}
.hero-eyebrow {
  display: flex;
  justify-content: center;
  gap: 9px;
  align-items: center;
  font-size: 11px;
  letter-spacing: 0.11em;
}
.hero h1 {
  font-size: clamp(48px, 5.9vw, 80px);
  font-weight: 650;
  line-height: 1.18;
  letter-spacing: -0.055em;
  margin-top: 24px;
}
.hero h1 > span {
  color: var(--accent);
}
.hero-description {
  font-size: 16px;
  line-height: 1.9;
  color: #76777f;
  margin-top: 24px;
  letter-spacing: 0.015em;
}
.hero-actions {
  margin-top: 30px;
}
.product-stage {
  position: relative;
  max-width: 1060px;
  margin: 65px auto 0;
  padding: 0 106px 0 22px;
  text-align: left;
}
.stage-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #7a7b82;
  font-size: 10px;
  margin-bottom: 13px;
  padding-left: 8px;
  letter-spacing: 0.03em;
}
.tiny-dot {
  width: 4px;
  height: 4px;
  background: #717178;
  border-radius: 50%;
}
.demo-label {
  margin-left: auto;
  font-size: 9px;
  border: 1px solid #d6d6da;
  border-radius: 4px;
  padding: 0 6px;
  color: #909095;
}
.desktop-device {
  border: 1px solid #c1c2c5;
  border-radius: 14px 14px 5px 5px;
  background: #f9f9fa;
  box-shadow:
    0 28px 60px -25px #42424750,
    0 0 0 5px #dfdfe2;
  overflow: hidden;
}
.browser-bar {
  height: 36px;
  border-bottom: 1px solid #e1e1e5;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #f1f1f2;
  padding-inline: 15px;
}
.window-dots {
  display: flex;
  gap: 5px;
}
.window-dots i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #d9b7ac;
}
.window-dots i:nth-child(2) {
  background: #bfbfc2;
}
.window-dots i:nth-child(3) {
  background: #bebfc2;
}
.address {
  display: flex;
  align-items: center;
  gap: 5px;
  background: #e7e7e9;
  border: 1px solid #e1e1e5;
  border-radius: 5px;
  width: 45%;
  height: 22px;
  justify-content: center;
  font-size: 8px;
  color: #84858b;
}
.address svg {
  width: 10px;
  height: 10px;
}
.browser-more {
  font-size: 17px;
  color: #8f9095;
}
.workspace {
  display: grid;
  grid-template-columns: 158px 1fr;
  min-height: 435px;
}
.workspace-sidebar {
  border-right: 1px solid #e4e4e6;
  padding: 21px 15px 12px;
  display: flex;
  flex-direction: column;
  background: #f4f4f6;
}
.workspace-brand {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  padding-left: 3px;
}
.workspace-brand img {
  border-radius: 7px;
}
.sidebar-label {
  font-size: 8px;
  color: #919297;
  margin: 25px 10px 10px;
}
.sidebar-item {
  font-size: 10px;
  color: #797a81;
  display: flex;
  gap: 9px;
  align-items: center;
  padding: 9px 11px;
  border-radius: 6px;
  margin-bottom: 4px;
  line-height: 1.5;
}
.sidebar-item span {
  font-size: 15px;
  width: 15px;
  text-align: center;
  font-weight: 400;
}
.sidebar-item.active {
  background: #e4e4e6;
  color: #4a4a4f;
  font-weight: 550;
}
.sidebar-bottom {
  margin-top: auto;
  display: flex;
  gap: 7px;
  align-items: center;
  padding: 15px 3px 0;
  color: #64646a;
  font-size: 8px;
}
.sidebar-bottom small {
  font-size: 7px;
  color: #95959a;
}
.avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #e3e3e5;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  color: #63646a;
  font-weight: 600;
  font-size: 10px;
}
.workspace-main {
  padding: 20px 25px 27px;
}
.workspace-top {
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  line-height: 1.5;
  color: #505156;
  margin-bottom: 20px;
}
.workspace-top .muted {
  margin-left: 8px;
  color: #aeafb3;
}
.workspace-greeting {
  color: #8f8f94;
  font-size: 8px;
}
.mountain-banner {
  background:
    linear-gradient(90deg, #313135e6, #4e4f541c),
    url("./assets/mountain.jpg") center 50% / cover;
  border-radius: 9px;
  color: white;
  position: relative;
  padding: 24px 25px;
  min-height: 157px;
  overflow: hidden;
}
.banner-tag {
  letter-spacing: 0.13em;
  font-size: 7px;
  color: #dbdbdf;
}
.mountain-banner h2 {
  font-size: 23px;
  letter-spacing: -0.04em;
  line-height: 1.5;
  margin-top: 8px;
  font-weight: 550;
}
.mountain-banner p {
  font-size: 9px;
  color: #e0e0e4;
  margin-top: 5px;
}
.banner-mini {
  position: absolute;
  right: 13px;
  bottom: 12px;
  font-size: 7px;
  color: #fff9;
}
.preview-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10px;
  margin-top: 22px;
  margin-bottom: 13px;
}
.preview-heading b {
  font-weight: 550;
}
.preview-heading > span {
  font-size: 8px;
  color: #83848b;
}
.course-preview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}
.course-cover {
  height: 105px;
  border-radius: 8px;
  padding: 16px 19px;
  position: relative;
  overflow: hidden;
}
.cover-green {
  background: #dadadd;
  color: #505156;
}
.cover-cream {
  background: #e1e1e5;
  color: #6d6e75;
}
.course-cover::after {
  content: "";
  position: absolute;
  width: 110px;
  height: 110px;
  border: 1px solid currentColor;
  border-radius: 50%;
  right: -25px;
  bottom: -60px;
  opacity: 0.15;
  box-shadow:
    0 0 0 15px #ffffff24,
    0 0 0 30px #ffffff24;
}
.cover-index {
  font-size: 7px;
  position: absolute;
  right: 13px;
  top: 9px;
  opacity: 0.55;
}
.course-cover > b {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.4;
}
.cover-play {
  display: grid;
  place-items: center;
  width: 21px;
  height: 21px;
  background: #ffffff5c;
  border-radius: 50%;
  position: absolute;
  bottom: 11px;
  right: 13px;
  font-size: 12px;
  z-index: 1;
}
.course-preview > b {
  display: block;
  font-size: 10px;
  font-weight: 550;
  margin-top: 10px;
}
.course-preview > p {
  font-size: 8px;
  color: #909196;
  margin-top: 2px;
}
.phone-device {
  width: 214px;
  height: 444px;
  border: 6px solid #2c2c2f;
  border-radius: 35px;
  position: absolute;
  right: 5px;
  bottom: -11px;
  background: #f8f8f9;
  box-shadow:
    10px 20px 40px #38383c2e,
    0 0 0 1px #8a8a90;
  overflow: hidden;
  padding: 0 13px;
}
.phone-island {
  position: absolute;
  top: 7px;
  width: 66px;
  height: 17px;
  background: #2c2c2f;
  border-radius: 99px;
  left: 50%;
  transform: translateX(-50%);
}
.phone-status {
  display: flex;
  justify-content: space-between;
  padding: 12px 2px 0;
  line-height: 1;
  font-size: 8px;
  color: #3e3e42;
}
.phone-status > span {
  font-size: 7px;
  letter-spacing: 1px;
}
.phone-app-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 22px;
  font-size: 11px;
  font-weight: 600;
}
.phone-app-title img {
  width: 22px;
  height: 22px;
  border-radius: 6px;
}
.phone-banner {
  padding: 20px 14px;
  margin-top: 13px;
  min-height: 104px;
  border-radius: 9px;
  background:
    linear-gradient(95deg, #37373bed, #5354593d),
    url("./assets/mountain.jpg") 60% 50% / cover;
  color: white;
}
.phone-banner > span {
  font-size: 7px;
  color: #dedee2;
}
.phone-banner > b {
  display: block;
  font-size: 15px;
  line-height: 1.5;
  font-weight: 500;
  margin-top: 4px;
}
.phone-shortcuts {
  display: flex;
  justify-content: space-between;
  gap: 5px;
  margin: 14px 4px 0;
  text-align: center;
}
.phone-shortcuts > div {
  font-size: 7px;
  color: #75767e;
}
.phone-shortcuts i {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  background: #e6e6e8;
  color: #59595f;
  border-radius: 9px;
  font-size: 15px;
  font-style: normal;
  margin-bottom: 5px;
}
.phone-shortcuts > div:nth-child(2) i {
  background: #e5e5e8;
  color: #73737a;
}
.phone-shortcuts > div:nth-child(3) i {
  background: #e3ebed;
  color: #65828a;
}
.phone-shortcuts > div:nth-child(4) i {
  background: #e5e5e8;
  color: #7f8087;
}
.phone-section-heading {
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  font-weight: 600;
  margin: 17px 0 9px;
}
.phone-section-heading > span {
  font-size: 7px;
  color: #88888e;
  font-weight: 400;
}
.phone-course {
  display: flex;
  gap: 9px;
  background: #fff;
  border: 1px solid #e6e6e8;
  padding: 8px;
  border-radius: 7px;
  align-items: center;
}
.phone-course-art {
  width: 36px;
  height: 40px;
  display: grid;
  place-items: center;
  flex: none;
  background: #dcdce0;
  border-radius: 4px;
  color: #64646a;
  font-size: 15px;
}
.phone-course b {
  font-size: 8px;
  font-weight: 550;
  display: block;
}
.phone-course p {
  font-size: 6px;
  color: #95959a;
  margin-top: 3px;
}
.progress-line {
  height: 2px;
  background: #e4e4e6;
  margin-top: 6px;
  width: 93px;
}
.progress-line > span {
  display: block;
  width: 42%;
  height: 2px;
  background: #85868c;
}
.phone-note {
  margin-top: 12px;
  position: relative;
  padding: 10px 12px;
  background: #eaeaec;
  border-radius: 7px;
}
.phone-note > span {
  font-size: 6px;
  color: #818289;
}
.phone-note p {
  font-size: 9px;
  color: #59595f;
  line-height: 1.5;
  margin-top: 2px;
}
.phone-note i {
  position: absolute;
  right: 14px;
  bottom: 12px;
  font-style: normal;
  color: #98999e;
  font-size: 22px;
}
.phone-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: #f8f8f9ed;
  border-top: 1px solid #eaeaec;
  display: flex;
  justify-content: space-around;
  padding: 7px 8px 9px;
  color: #999a9f;
  font-size: 14px;
  text-align: center;
  line-height: 1;
}
.phone-bottom small {
  display: block;
  font-size: 6px;
  margin-top: 3px;
}
.phone-bottom .selected {
  color: #55565b;
}
.floating-note {
  position: absolute;
  left: -17px;
  bottom: 31px;
  padding: 13px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid #fff8;
  background: #ffffffdc;
  backdrop-filter: blur(12px);
  border-radius: 12px;
  box-shadow: 0 10px 35px #5151561a;
  font-size: 10px;
  color: #4e4f54;
}
.floating-note svg {
  width: 25px;
  height: 25px;
  color: #5e5e64;
}
.floating-note small {
  display: block;
  font-size: 8px;
  color: #96969b;
  margin-top: 2px;
}
.hero-footnotes {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-top: 62px;
  padding-block: 25px;
  border-top: 1px solid #d8d8dc;
  color: #89898f;
  font-size: 11px;
}
.hero-footnotes span + span {
  border-left: 1px solid #d2d2d7;
  margin-left: 40px;
  padding-left: 40px;
}
/* 核心优势不以零流量/零占盘代替真实的机构端成本边界。 */
.lightweight {
  background: #fff;
  padding-top: 100px;
}
.delivery-card {
  margin-top: 43px;
  display: grid;
  grid-template-columns: 0.8fr 1.35fr;
  background: #f1f1f2;
  border: 1px solid #e5e5e8;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 350px;
}
.delivery-copy {
  padding: 43px 0 43px 44px;
}
.delivery-copy h3 {
  font-size: 32px;
  letter-spacing: -0.045em;
  line-height: 1.35;
  margin-top: 21px;
  font-weight: 600;
}
.delivery-copy > p {
  font-size: 13px;
  line-height: 1.9;
  color: #7b7c84;
  max-width: 270px;
  margin-top: 19px;
}
.delivery-copy > .text-link {
  margin-top: 24px;
}
.delivery-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px 30px 30px 15px;
  position: relative;
  background: radial-gradient(ellipse at 50% 50%, #dedee14f, transparent 65%);
}
.cloud-node,
.brand-node,
.learner-node {
  display: flex;
  align-items: center;
  text-align: center;
  flex-direction: column;
  position: relative;
  z-index: 1;
}
.delivery-diagram b {
  font-size: 12px;
  font-weight: 550;
  margin-top: 18px;
  white-space: nowrap;
}
.delivery-diagram > div > span {
  font-size: 9px;
  color: #8d8e93;
  white-space: nowrap;
  margin-top: 5px;
}
.cloud-node svg {
  height: 64px;
  width: 68px;
  stroke: #8f9095;
  stroke-width: 1.2;
}
.learner-node svg {
  height: 64px;
  width: 60px;
  stroke: #7e7f87;
  stroke-width: 1.2;
}
.brand-node img {
  width: 72px;
  height: 72px;
  object-fit: contain;
  border-radius: 20px;
  box-shadow: 0 12px 30px #54555a30;
  background: white;
}
.connection {
  width: 65px;
  display: flex;
  align-items: center;
  align-self: center;
  position: relative;
  margin-bottom: 58px;
  flex: 1;
  max-width: 95px;
  min-width: 25px;
}
.connection > i {
  display: block;
  flex: 1;
  height: 1px;
  background: #b8b8bc;
}
.delivery-diagram .connection > span {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 8px;
  letter-spacing: 0.05em;
}
.connection::after {
  content: "";
  width: 5px;
  height: 5px;
  border-right: 1px solid #9d9da2;
  border-top: 1px solid #9d9da2;
  transform: rotate(45deg);
  position: absolute;
  right: 0;
  top: -2px;
}
.benefit-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 45px;
  margin-top: 38px;
}
.benefit-row > div {
  padding-top: 15px;
  border-top: 1px solid var(--line);
}
.benefit-number {
  font-size: 10px;
  color: #9e9ea3;
}
.benefit-row h3 {
  font-size: 16px;
  font-weight: 550;
  letter-spacing: -0.02em;
  margin-top: 8px;
}
.benefit-row p {
  font-size: 12px;
  color: #88898f;
  margin-top: 9px;
  line-height: 1.9;
}
.cost-note {
  margin-top: 35px;
  padding-top: 20px;
  border-top: 1px solid #e9e9eb;
}
.possibilities {
  padding-top: 103px;
}
.capability-shell {
  border: 1px solid #e0e0e3;
  border-radius: var(--radius);
  background: white;
  margin-top: 43px;
  overflow: hidden;
}
.capability-tabs {
  display: flex;
  gap: 8px;
  padding: 16px 21px;
  border-bottom: 1px solid #e6e6e8;
}
.capability-tabs button {
  flex: 1;
  padding: 11px 18px;
  border-radius: 10px;
  font-size: 12px;
  background: transparent;
  color: #949499;
  transition:
    color 0.2s,
    background 0.2s;
  white-space: nowrap;
}
.capability-tabs button[aria-selected="true"] {
  background: #ececee;
  color: #505055;
  font-weight: 600;
}
.capability-tabs button:hover {
  background: #efeff1;
  color: #505055;
}
.capability-panel {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  min-height: 405px;
  padding: 45px;
  gap: 45px;
  align-items: center;
}
.capability-copy h3 {
  font-size: 32px;
  line-height: 1.4;
  letter-spacing: -0.045em;
  font-weight: 600;
  margin-top: 20px;
}
.capability-copy > p {
  color: #85858b;
  font-size: 13px;
  line-height: 1.9;
  max-width: 300px;
  margin-top: 18px;
}
.check-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  color: #787980;
  font-size: 11px;
}
.check-list li {
  margin: 8px 0;
  display: flex;
  align-items: center;
  gap: 9px;
}
.check-list li::before {
  content: "✓";
  font-size: 12px;
  color: #717279;
}
.capability-visual {
  background: #f2f2f3;
  border: 1px solid #e5e5e7;
  border-radius: 14px;
  padding: 22px;
  min-height: 305px;
  position: relative;
}
.visual-label {
  display: block;
  font-size: 9px;
  color: #9e9ea3;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}
.mini-player {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  background: #333336;
  aspect-ratio: 1.85;
  color: white;
}
.mini-player > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.8);
}
.player-watermark {
  font-size: 8px;
  position: absolute;
  top: 12px;
  right: 12px;
  color: #fffc;
}
.player-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid #ffffff7a;
  width: 43px;
  height: 43px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #ffffff12;
  font-size: 22px;
  backdrop-filter: blur(5px);
}
.player-controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(transparent, #1b1b1d9e);
  font-size: 8px;
}
.player-controls > div {
  flex: 1;
  height: 2px;
  background: #ffffff45;
}
.player-controls i {
  display: block;
  width: 35%;
  height: 2px;
  background: #dbdbdf;
}
.lesson-line {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 9px;
  padding: 12px 0 0;
  color: #5f5f65;
}
.lesson-line b {
  font-weight: 500;
  flex: 1;
}
.lesson-line .lesson-state {
  font-size: 8px;
  border: 1px solid #d7d7dc;
  background: #ebebed;
  padding: 2px 7px;
  border-radius: 4px;
}
.lesson-line.muted {
  color: #a3a3a7;
}
.capability-note {
  text-align: right;
  margin-top: 14px;
  font-size: 10px;
}
.question-visual {
  padding: 24px 27px;
}
.question-top {
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  color: #87888e;
  margin-bottom: 16px;
}
.question-top > span:last-child {
  font-size: 8px;
  background: #e6e6e8;
  padding: 1px 7px;
  border-radius: 4px;
}
.question-visual h4 {
  font-size: 14px;
  font-weight: 550;
  line-height: 1.6;
}
.demo-answers {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 17px;
}
.demo-answers button {
  background: #fff;
  border: 1px solid #dddde1;
  border-radius: 7px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 10px;
  text-align: left;
  line-height: 1.5;
  min-height: 39px;
}
.demo-answers button > span {
  display: grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border: 1px solid #dfdfe3;
  border-radius: 50%;
  color: #88888e;
  font-size: 8px;
  flex: none;
}
.demo-answers button[aria-pressed="true"] {
  background: #e5e5e7;
  border-color: #8b8b91;
  color: #4f4f54;
}
.demo-answers button[aria-pressed="true"] > span {
  background: #616167;
  border-color: #616167;
  color: white;
}
.answer-feedback {
  font-size: 10px;
  color: #707178;
  margin-top: 15px;
  min-height: 34px;
  line-height: 1.8;
}
.task-heading {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 5px;
  margin-bottom: 15px;
}
.task-date {
  font-size: 9px;
  background: #e2e2e5;
  color: #777880;
  line-height: 1.4;
  text-align: center;
  width: 45px;
  height: 50px;
  padding-top: 7px;
  border-radius: 8px;
  flex: none;
}
.task-date b {
  font-size: 13px;
}
.task-heading h4 {
  font-size: 14px;
  font-weight: 550;
}
.task-heading p {
  font-size: 9px;
  color: #919196;
  margin-top: 3px;
}
.task-row {
  border-top: 1px solid #dfdfe2;
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 16px 0;
}
.task-check {
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  background: #e1e1e5;
  border-radius: 8px;
  color: #808189;
  font-size: 13px;
  flex: none;
}
.task-row > div {
  flex: 1;
}
.task-row b {
  font-size: 10px;
  font-weight: 500;
  display: block;
}
.task-row p {
  font-size: 8px;
  color: #95969b;
  margin-top: 2px;
}
.task-badge {
  font-size: 8px;
  color: #7d7e85;
  background: #e6e6e8;
  border-radius: 4px;
  padding: 2px 6px;
  white-space: nowrap;
}
.material-visual {
  overflow: hidden;
}
.paper-stack {
  position: relative;
  width: 185px;
  margin: 7px auto 18px;
  height: 200px;
}
.paper-back {
  position: absolute;
  inset: 6px -7px -2px 8px;
  border: 1px solid #d8d8dd;
  background: #e2e2e5;
  transform: rotate(8deg);
  border-radius: 4px;
}
.paper-front {
  position: absolute;
  inset: 0;
  background: #fcfcfc;
  box-shadow: 0 7px 20px #83848b15;
  border: 1px solid #dfdfe3;
  border-radius: 4px;
  padding: 19px 21px;
}
.paper-type {
  font-size: 6px;
  letter-spacing: 0.12em;
  color: #9d9ea3;
}
.paper-front h4 {
  font-size: 21px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -0.04em;
  color: #64656b;
  margin-top: 13px;
}
.paper-lines {
  display: grid;
  gap: 7px;
  margin-top: 18px;
}
.paper-lines i {
  height: 1px;
  background: #e1e1e4;
}
.paper-lines i:last-child {
  width: 65%;
}
.paper-footer {
  font-size: 6px;
  letter-spacing: 0.07em;
  position: absolute;
  bottom: 12px;
  left: 21px;
  color: #9e9ea3;
}
.material-caption {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 10px;
  margin-top: 20px;
}
.pdf-tag {
  background: #dfdfe2;
  color: #7c7d84;
  font-size: 8px;
  border: 1px solid #d5d5d9;
  border-radius: 4px;
  display: grid;
  place-items: center;
  width: 30px;
  height: 34px;
}
.material-caption > div {
  flex: 1;
}
.material-caption b {
  font-weight: 500;
}
.material-caption p {
  font-size: 8px;
  color: #9a9ba0;
  margin-top: 2px;
}
.material-caption > span:last-child {
  font-size: 18px;
  color: #8c8d93;
}
.feature-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 37px;
}
.feature-pair article {
  padding: 33px 35px 31px;
  background: #eaeaec;
  border-radius: 20px;
  border: 1px solid #e0e0e3;
}
.feature-pair article:last-child {
  background: #e8e8ea;
  border-color: #dddde1;
}
.feature-glyph {
  display: block;
  font-size: 29px;
  color: #7b7c84;
  line-height: 1;
  margin-bottom: 22px;
}
.feature-pair h3 {
  font-size: 22px;
  font-weight: 550;
  letter-spacing: -0.04em;
}
.feature-pair p {
  font-size: 13px;
  color: #86878d;
  line-height: 1.9;
  margin-top: 14px;
  max-width: 390px;
}
.feature-pair .text-link {
  margin-top: 21px;
  font-size: 12px;
}
.protection {
  background: #262628;
  color: #ededef;
  position: relative;
  overflow: hidden;
  padding-bottom: 55px;
}
.protection::after {
  content: "";
  position: absolute;
  width: 580px;
  height: 580px;
  border: 1px solid #c2c3c60a;
  border-radius: 50%;
  top: -350px;
  right: -100px;
  box-shadow:
    0 0 0 60px #c2c3c603,
    0 0 0 120px #c2c3c603;
  pointer-events: none;
}
.security-heading .eyebrow {
  color: #9d9da2;
}
.security-heading h2 {
  font-size: clamp(34px, 3.6vw, 49px);
  line-height: 1.3;
  letter-spacing: -0.045em;
  margin-top: 17px;
  font-weight: 550;
}
.security-heading h2 span {
  color: #a1a1a5;
}
.security-heading > p:last-child {
  font-size: 14px;
  line-height: 1.9;
  color: #939499;
  margin-top: 24px;
}
.protection-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 35px;
  margin-top: 54px;
}
.protection-grid article {
  border-top: 1px solid #77787f3b;
  padding-top: 25px;
}
.protection-grid svg {
  width: 30px;
  height: 30px;
  stroke: #a5a6aa;
  stroke-width: 1.3;
  margin-bottom: 20px;
}
.protection-grid h3 {
  font-size: 16px;
  font-weight: 500;
  color: #e5e5e7;
}
.protection-grid p {
  font-size: 12px;
  line-height: 1.9;
  color: #919297;
  margin-top: 12px;
}
.security-note {
  color: #7a7b83;
  border-top: 1px solid #55555a45;
  padding-top: 20px;
  margin-top: 45px;
  font-size: 10px;
}
.getting-started {
  background: #fff;
}
.start-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
}
.start-header > p {
  font-size: 14px;
  color: #909095;
  line-height: 1.9;
  padding-bottom: 7px;
}
.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 45px;
  margin: 52px 0 0;
  padding: 0;
}
.steps li {
  position: relative;
  border-top: 1px solid #d8d8dd;
  padding-top: 25px;
}
.step-index {
  font-size: 36px;
  line-height: 1;
  font-weight: 300;
  color: #b6b6b9;
  letter-spacing: -0.07em;
}
.steps h3 {
  font-size: 18px;
  letter-spacing: -0.03em;
  font-weight: 550;
  margin-top: 24px;
}
.steps p {
  font-size: 12px;
  line-height: 1.9;
  color: #8b8c92;
  margin-top: 11px;
  max-width: 290px;
}
.platform-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  border-top: 1px solid #e4e4e6;
  margin-top: 57px;
  padding-top: 30px;
}
.platform-strip > div {
  position: relative;
  padding-left: 17px;
}
.platform-strip .status-dot {
  position: absolute;
  top: 10px;
  left: 0;
  width: 5px;
  height: 5px;
}
.platform-strip b {
  font-size: 14px;
  font-weight: 550;
}
.platform-strip p {
  font-size: 11px;
  color: #87888e;
  line-height: 1.9;
  margin-top: 7px;
}
.platform-strip p > br {
  display: none;
}
.platform-strip .button {
  font-size: 12px;
}
.faq-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.3fr;
  gap: 100px;
}
.faq-intro > p:not(.eyebrow) {
  font-size: 14px;
  color: #909095;
  margin-top: 23px;
  line-height: 1.9;
}
.faq-intro > .text-link {
  margin-top: 25px;
}
.faq-list details {
  border-bottom: 1px solid #d8d8dc;
  padding-block: 21px;
}
.faq-list details:first-child {
  border-top: 1px solid #d8d8dc;
}
.faq-list summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.8;
}
.faq-list summary::-webkit-details-marker {
  display: none;
}
.faq-list summary::after {
  content: "+";
  color: #808188;
  font-size: 21px;
  line-height: 1;
  flex: none;
  font-weight: 300;
}
.faq-list details[open] summary::after {
  content: "−";
}
.faq-list details p {
  font-size: 12px;
  line-height: 1.95;
  color: #84858b;
  padding-right: 28px;
  margin-top: 16px;
}
.closing {
  padding-top: 0;
  padding-bottom: 70px;
}
.closing-card {
  background: #e4e4e7;
  border: 1px solid #dddde1;
  position: relative;
  border-radius: var(--radius);
  padding: 65px 35px 60px;
  text-align: center;
  overflow: hidden;
}
.closing-card::before,
.closing-card::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border: 1px solid #9d9ea31f;
  border-radius: 50%;
  left: -230px;
  top: 0;
  box-shadow:
    0 0 0 45px #9d9ea308,
    0 0 0 90px #9d9ea308;
  pointer-events: none;
}
.closing-card::after {
  left: auto;
  top: auto;
  right: -230px;
  bottom: 0;
}
.closing-mark {
  font-size: 34px;
  color: #797a81;
  line-height: 1;
  display: inline-block;
  margin-bottom: 20px;
}
.closing-card .eyebrow {
  font-size: 9px;
  letter-spacing: 0.17em;
  color: #818289;
}
.closing-card h2 {
  font-size: clamp(35px, 4vw, 54px);
  line-height: 1.3;
  letter-spacing: -0.05em;
  margin-top: 18px;
  font-weight: 600;
}
.closing-card > p:not(.eyebrow) {
  font-size: 14px;
  line-height: 1.9;
  color: #85868c;
  margin-top: 20px;
}
.closing-card .actions {
  margin-top: 30px;
  gap: 13px;
}
.closing-card .button {
  font-size: 12px;
  min-height: 45px;
  padding: 11px 23px;
}
.site-footer {
  padding-top: 16px;
  padding-bottom: 25px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 50px;
  padding-bottom: 40px;
}
.footer-top > .brand {
  font-size: 16px;
}
.footer-top > div > p {
  font-size: 11px;
  color: #96969b;
  margin-top: 12px;
  margin-left: 43px;
}
.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 55px;
}
.footer-links > div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  font-size: 11px;
  color: #87878d;
}
.footer-links b {
  font-weight: 550;
  color: #57575c;
  margin-bottom: 7px;
  font-size: 11px;
}
.footer-links button {
  padding: 0;
  background: none;
  color: inherit;
  font-size: inherit;
  line-height: inherit;
  text-align: left;
}
.footer-links a:hover,
.footer-links button:hover,
.footer-bottom a:hover {
  color: var(--accent);
}
.footer-contact {
  font-size: 10px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 9px;
  color: #9b9ca1;
  border-top: 1px solid #dbdbde;
  padding-top: 22px;
  flex-wrap: wrap;
}
.footer-bottom > span:nth-child(2) {
  display: flex;
  gap: 18px;
}
/* 原生 dialog 负责焦点约束，脚本补充关闭后的焦点恢复。 */
.site-dialog {
  width: min(440px, calc(100% - 36px));
  padding: 42px;
  border: 1px solid #dfdfe3;
  background: #f9f9fa;
  color: var(--ink);
  border-radius: 24px;
  box-shadow: 0 25px 100px #1a1a1b45;
  max-height: calc(100dvh - 36px);
  overflow: auto;
}
.site-dialog::backdrop {
  background: #1c1c1d73;
  backdrop-filter: blur(6px);
}
.dialog-close {
  position: absolute;
  top: 12px;
  right: 14px;
  border: 1px solid #dddde0;
  background: #ededef;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 22px;
  color: #83848b;
  line-height: 1;
}
.dialog-close:hover {
  background: #dfdfe3;
}
.dialog-kicker {
  font-size: 9px;
  letter-spacing: 0.16em;
  color: #8d8e93;
}
.site-dialog h2 {
  font-size: 30px;
  letter-spacing: -0.045em;
  line-height: 1.3;
  margin-top: 16px;
  font-weight: 600;
}
.site-dialog > p:not(.eyebrow) {
  font-size: 12px;
  line-height: 1.9;
  color: #88898f;
  margin-top: 16px;
}
.site-dialog label {
  display: block;
  font-size: 10px;
  color: #95969b;
  margin-top: 26px;
}
.contact-field {
  border: 1px solid #d2d2d6;
  border-radius: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 10px 10px 13px;
  margin-top: 7px;
  background: #fff;
  min-width: 0;
}
.contact-field input {
  border: 0;
  background: transparent;
  color: #515156;
  min-width: 0;
  width: 100%;
  font-size: 15px;
  line-height: 1.7;
  letter-spacing: 0.02em;
}
.contact-field input:focus-visible {
  outline: 2px solid #89898f;
  outline-offset: 2px;
}
.contact-field button {
  border-radius: 6px;
  background: #e5e5e7;
  color: #65666c;
  padding: 7px 10px;
  white-space: nowrap;
  font-size: 10px;
}
.site-dialog > .copy-status {
  min-height: 23px;
  font-size: 10px !important;
  margin-top: 8px !important;
}
.site-dialog > .text-link {
  font-size: 11px;
  margin-top: 20px;
}
.wechat-dialog {
  text-align: center;
}
.wechat-dialog h2 {
  font-size: 24px;
  margin-top: 12px;
}
.wechat-dialog img {
  width: min(260px, 100%);
  margin: 24px auto 15px;
}
.wechat-dialog .eyebrow {
  font-size: 9px;
}
.modal-open {
  overflow: hidden;
}
.legal-page {
  background: #f9f9fa;
}
.legal-header {
  width: min(860px, calc(100% - 48px));
  margin: 35px auto 0;
  padding-bottom: 25px;
  border-bottom: 1px solid var(--line);
}
.legal-back {
  color: var(--accent);
  font-size: 13px;
}
.legal-content {
  width: min(860px, calc(100% - 48px));
  margin: 35px auto 70px;
  font-size: 14px;
  color: #63646a;
  line-height: 1.95;
}
.legal-content h1 {
  font-size: 32px;
  color: var(--ink);
  line-height: 1.4;
}
.legal-content h2 {
  color: #444448;
  font-size: 19px;
  line-height: 1.6;
  margin: 32px 0 12px;
}
.legal-content p {
  margin: 14px 0;
}
.legal-meta {
  font-size: 12px;
  color: #939499;
}
.legal-content pre {
  white-space: pre-wrap;
  font: inherit;
  overflow-wrap: anywhere;
}
/* 内容默认可见；只有交叉观察器可用时才开启渐入，避免脚本异常留下空白。 */
@media (prefers-reduced-motion: no-preference) {
  .reveal.is-pending {
    opacity: 0;
    transform: translateY(18px);
    transition:
      opacity 0.6s ease,
      transform 0.6s ease;
  }
  .reveal.is-visible {
    opacity: 1;
    transform: none;
  }
}
@media (min-width: 1550px) {
  .hero {
    padding-top: 85px;
  }
  .hero h1 {
    font-size: 84px;
  }
  .product-stage {
    margin-top: 73px;
  }
}
@media (max-width: 1150px) {
  .container {
    width: calc(100% - 64px);
  }
  .nav-row {
    gap: 20px;
  }
  .primary-nav {
    gap: 18px;
  }
  .nav-actions {
    gap: 17px;
  }
  .hero h1 {
    font-size: 66px;
  }
  .product-stage {
    margin-left: 10px;
    margin-right: 10px;
  }
  .workspace {
    grid-template-columns: 137px 1fr;
  }
  .workspace-main {
    padding: 18px 20px 23px;
  }
  .mountain-banner h2 {
    font-size: 21px;
  }
  .course-cover {
    padding: 15px;
  }
  .course-cover > b {
    font-size: 15px;
  }
  .delivery-copy {
    padding-left: 33px;
  }
  .delivery-diagram {
    padding-right: 25px;
  }
  .delivery-diagram b {
    font-size: 10px;
  }
  .delivery-diagram > div > span {
    font-size: 8px;
  }
  .cloud-node svg {
    width: 56px;
  }
  .brand-node img {
    width: 62px;
    height: 62px;
  }
  .learner-node svg {
    width: 50px;
  }
  .capability-panel {
    padding: 35px;
    gap: 30px;
  }
  .capability-copy h3 {
    font-size: 29px;
  }
  .capability-visual {
    padding: 18px;
  }
  .protection-grid {
    gap: 25px;
  }
  .faq-layout {
    gap: 65px;
  }
  .footer-links {
    gap: 35px;
  }
}
@media (max-width: 900px) {
  .container {
    width: calc(100% - 48px);
  }
  .section {
    padding-block: 75px;
  }
  .site-header {
    height: 67px;
  }
  .brand {
    font-size: 15px;
  }
  .brand img {
    width: 31px;
    height: 31px;
  }
  .primary-nav {
    gap: 15px;
    font-size: 11px;
  }
  .admin-link {
    display: none;
  }
  .nav-actions {
    gap: 10px;
  }
  .button-small {
    padding: 8px 14px;
    font-size: 11px;
  }
  .hero {
    padding-top: 60px;
    padding-bottom: 0;
  }
  .hero h1 {
    font-size: 58px;
  }
  .hero-description {
    font-size: 14px;
  }
  .product-stage {
    padding-right: 82px;
    padding-left: 10px;
    margin-top: 55px;
  }
  .workspace {
    grid-template-columns: 112px 1fr;
    min-height: 365px;
  }
  .workspace-sidebar {
    padding: 17px 8px 10px;
  }
  .workspace-brand {
    font-size: 12px;
  }
  .workspace-brand img {
    width: 23px;
    height: 23px;
  }
  .sidebar-item {
    font-size: 8px;
    padding: 8px;
  }
  .sidebar-item span {
    font-size: 12px;
  }
  .sidebar-label {
    margin-top: 20px;
    font-size: 7px;
  }
  .workspace-main {
    padding: 17px;
  }
  .workspace-top {
    margin-bottom: 15px;
    font-size: 8px;
  }
  .workspace-greeting {
    display: none;
  }
  .mountain-banner {
    min-height: 125px;
    padding: 20px;
  }
  .mountain-banner h2 {
    font-size: 18px;
  }
  .mountain-banner p {
    font-size: 8px;
  }
  .preview-heading {
    margin-top: 17px;
    margin-bottom: 9px;
    font-size: 8px;
  }
  .course-preview-grid {
    gap: 10px;
  }
  .course-cover {
    height: 90px;
    padding: 17px 12px;
  }
  .course-cover > b {
    font-size: 13px;
  }
  .course-preview > b {
    font-size: 8px;
    margin-top: 7px;
  }
  .course-preview > p {
    font-size: 7px;
  }
  .phone-device {
    width: 176px;
    height: 365px;
    border-width: 5px;
    border-radius: 28px;
    right: 0;
    bottom: -11px;
    padding: 0 10px;
  }
  .phone-island {
    width: 54px;
    height: 14px;
    top: 5px;
  }
  .phone-status {
    font-size: 7px;
    padding-top: 10px;
  }
  .phone-status > span {
    font-size: 5px;
  }
  .phone-app-title {
    margin-top: 18px;
    font-size: 9px;
  }
  .phone-app-title img {
    width: 19px;
    height: 19px;
  }
  .phone-banner {
    margin-top: 10px;
    padding: 14px 11px;
    min-height: 86px;
  }
  .phone-banner > b {
    font-size: 13px;
  }
  .phone-banner > span {
    font-size: 6px;
  }
  .phone-shortcuts {
    margin-top: 11px;
  }
  .phone-shortcuts i {
    width: 24px;
    height: 24px;
    border-radius: 7px;
    font-size: 13px;
    margin-bottom: 3px;
  }
  .phone-shortcuts > div {
    font-size: 6px;
  }
  .phone-section-heading {
    font-size: 8px;
    margin-top: 12px;
  }
  .phone-section-heading > span {
    font-size: 6px;
  }
  .phone-course {
    gap: 6px;
    padding: 6px;
  }
  .phone-course-art {
    width: 29px;
    height: 32px;
    font-size: 12px;
  }
  .phone-course b {
    font-size: 7px;
  }
  .phone-course p {
    font-size: 5px;
  }
  .progress-line {
    width: 77px;
    margin-top: 4px;
  }
  .phone-note {
    padding: 7px 10px;
    margin-top: 9px;
  }
  .phone-note p {
    font-size: 8px;
  }
  .phone-note > span {
    font-size: 5px;
  }
  .phone-bottom {
    font-size: 12px;
    padding: 6px 6px 7px;
  }
  .phone-bottom small {
    font-size: 5px;
  }
  .floating-note {
    left: -5px;
    bottom: 25px;
    padding: 10px 14px;
    font-size: 8px;
    gap: 8px;
  }
  .floating-note svg {
    width: 22px;
    height: 22px;
  }
  .floating-note small {
    font-size: 7px;
  }
  .hero-footnotes {
    margin-top: 50px;
    font-size: 10px;
    padding-block: 23px;
  }
  .hero-footnotes span + span {
    margin-left: 23px;
    padding-left: 23px;
  }
  .delivery-card {
    grid-template-columns: 1fr 1.25fr;
    min-height: 330px;
  }
  .delivery-copy {
    padding: 34px 0 34px 29px;
  }
  .delivery-copy h3 {
    font-size: 28px;
  }
  .delivery-copy > p {
    font-size: 12px;
    max-width: 220px;
  }
  .delivery-diagram {
    padding: 30px 18px;
  }
  .delivery-diagram .connection > span {
    font-size: 6px;
  }
  .delivery-diagram > div > span {
    font-size: 7px;
  }
  .delivery-diagram b {
    font-size: 9px;
  }
  .cloud-node svg {
    width: 45px;
    height: 50px;
  }
  .brand-node img {
    width: 51px;
    height: 51px;
    border-radius: 15px;
  }
  .learner-node svg {
    width: 39px;
    height: 50px;
  }
  .connection {
    margin-bottom: 52px;
    min-width: 14px;
  }
  .benefit-row {
    gap: 25px;
  }
  .benefit-row h3 {
    font-size: 14px;
  }
  .benefit-row p {
    font-size: 11px;
  }
  .capability-panel {
    padding: 29px;
    gap: 25px;
    min-height: 365px;
  }
  .capability-copy h3 {
    font-size: 26px;
  }
  .capability-copy > p {
    font-size: 12px;
  }
  .capability-visual {
    min-height: 280px;
    padding: 17px;
  }
  .visual-label {
    margin-bottom: 12px;
  }
  .mini-player {
    aspect-ratio: 1.7;
  }
  .lesson-line {
    gap: 7px;
    font-size: 8px;
  }
  .lesson-line .lesson-state {
    font-size: 6px;
  }
  .feature-pair article {
    padding: 28px;
  }
  .feature-pair h3 {
    font-size: 19px;
  }
  .feature-pair p {
    font-size: 12px;
  }
  .protection-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 35px 40px;
  }
  .protection-grid p {
    max-width: 300px;
  }
  .security-note {
    margin-top: 35px;
  }
  .start-header > p {
    font-size: 12px;
  }
  .steps {
    gap: 25px;
  }
  .steps h3 {
    font-size: 16px;
  }
  .steps p {
    font-size: 11px;
  }
  .platform-strip p > br {
    display: block;
  }
  .faq-layout {
    grid-template-columns: 0.75fr 1.3fr;
    gap: 40px;
  }
  .faq-list summary {
    font-size: 12px;
  }
  .faq-list details p {
    font-size: 11px;
  }
  .footer-links {
    gap: 24px;
  }
  .footer-top {
    gap: 28px;
  }
  .footer-contact {
    font-size: 9px;
  }
  .footer-bottom {
    font-size: 8px;
    gap: 14px;
  }
  .closing {
    padding-top: 0;
  }
}
@media (max-width: 700px) {
  .container {
    width: calc(100% - 36px);
  }
  .section {
    padding-block: 64px;
  }
  .site-header {
    height: 64px;
  }
  .nav-row {
    gap: 12px;
  }
  .brand {
    font-size: 15px;
  }
  .brand img {
    width: 30px;
    height: 30px;
    border-radius: 8px;
  }
  .menu-toggle {
    width: 32px;
    height: 36px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: 5px;
    background: none;
    margin-left: auto;
    order: 3;
    padding: 7px;
  }
  .menu-toggle span {
    display: block;
    width: 18px;
    height: 1px;
    background: #545459;
    transition: transform 0.2s;
  }
  .menu-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(3px) rotate(45deg);
  }
  .menu-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-3px) rotate(-45deg);
  }
  .nav-actions {
    margin-left: auto;
  }
  .primary-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 63px;
    display: none;
    background: #f3f3f5fa;
    border-bottom: 1px solid #dadadd;
    padding: 19px 25px;
    flex-wrap: wrap;
    gap: 10px 23px;
    font-size: 12px;
    box-shadow: 0 15px 20px #30303408;
  }
  .primary-nav.is-open {
    display: flex;
  }
  .primary-nav a {
    padding: 5px;
  }
  .button-small {
    font-size: 10px;
    padding: 7px 13px;
    min-height: 33px;
  }
  .hero {
    padding-top: 46px;
    padding-bottom: 0;
  }
  .hero-eyebrow {
    font-size: 9px;
    letter-spacing: 0.08em;
  }
  .hero h1 {
    font-size: clamp(36px, 8.6vw, 55px);
    margin-top: 20px;
    letter-spacing: -0.055em;
    line-height: 1.23;
  }
  .hero-description {
    font-size: 12px;
    line-height: 1.9;
    margin-top: 18px;
    max-width: 380px;
    margin-inline: auto;
  }
  .hero-actions {
    margin-top: 25px;
    gap: 22px;
  }
  .hero-actions .button {
    font-size: 11px;
    padding: 11px 20px;
    min-height: 43px;
  }
  .hero-actions .text-link {
    font-size: 11px;
    gap: 12px;
  }
  .product-stage {
    margin: 42px 5px 0;
    padding: 0 50px 0 0;
  }
  .stage-label {
    font-size: 7px;
    padding-left: 2px;
    gap: 5px;
    margin-bottom: 9px;
  }
  .demo-label {
    font-size: 6px;
    padding: 0 4px;
  }
  .desktop-device {
    border-radius: 10px 10px 4px 4px;
    box-shadow:
      0 20px 30px -20px #42424775,
      0 0 0 3px #dfdfe2;
  }
  .browser-bar {
    height: 23px;
    padding-inline: 8px;
  }
  .window-dots {
    gap: 3px;
  }
  .window-dots i {
    width: 4px;
    height: 4px;
  }
  .address {
    height: 15px;
    font-size: 5px;
    border-radius: 3px;
    width: 50%;
  }
  .address svg {
    width: 7px;
    height: 7px;
  }
  .browser-more {
    font-size: 12px;
  }
  .workspace {
    grid-template-columns: 77px 1fr;
    min-height: 266px;
  }
  .workspace-sidebar {
    padding: 13px 6px 8px;
  }
  .workspace-brand {
    font-size: 10px;
    gap: 3px;
    padding-left: 2px;
  }
  .workspace-brand img {
    width: 18px;
    height: 18px;
    border-radius: 5px;
  }
  .sidebar-label {
    font-size: 5px;
    margin: 18px 4px 7px;
  }
  .sidebar-item {
    font-size: 6px;
    gap: 4px;
    padding: 6px 5px;
    margin-bottom: 3px;
    border-radius: 4px;
  }
  .sidebar-item span {
    font-size: 9px;
    width: 9px;
  }
  .sidebar-bottom {
    padding-top: 10px;
    font-size: 5px;
    gap: 4px;
  }
  .sidebar-bottom small {
    font-size: 4px;
  }
  .avatar {
    width: 17px;
    height: 17px;
    font-size: 6px;
    flex: none;
  }
  .workspace-main {
    padding: 12px 11px 15px;
  }
  .workspace-top {
    font-size: 5px;
    line-height: 1.3;
    margin-bottom: 11px;
  }
  .workspace-top .muted {
    margin-left: 5px;
  }
  .mountain-banner {
    min-height: 96px;
    border-radius: 6px;
    padding: 15px 12px;
  }
  .banner-tag {
    font-size: 4px;
  }
  .mountain-banner h2 {
    font-size: 13px;
    line-height: 1.5;
    margin-top: 6px;
    white-space: nowrap;
  }
  .mountain-banner p {
    font-size: 5px;
    margin-top: 4px;
  }
  .banner-mini {
    font-size: 4px;
    right: 8px;
    bottom: 6px;
  }
  .preview-heading {
    font-size: 6px;
    margin-top: 12px;
    margin-bottom: 8px;
  }
  .preview-heading > span {
    font-size: 5px;
  }
  .course-preview-grid {
    gap: 7px;
  }
  .course-cover {
    height: 70px;
    padding: 12px 8px;
    border-radius: 5px;
  }
  .course-cover > b {
    font-size: 9px;
    line-height: 1.5;
  }
  .cover-index {
    font-size: 4px;
    right: 8px;
    top: 5px;
  }
  .cover-play {
    width: 14px;
    height: 14px;
    font-size: 8px;
    right: 8px;
    bottom: 7px;
  }
  .course-cover::after {
    width: 65px;
    height: 65px;
    bottom: -40px;
    right: -20px;
    box-shadow:
      0 0 0 9px #ffffff24,
      0 0 0 18px #ffffff24;
  }
  .course-preview > b {
    font-size: 6px;
    margin-top: 6px;
  }
  .course-preview > p {
    font-size: 4px;
    margin-top: 1px;
  }
  .phone-device {
    width: 125px;
    height: 266px;
    border-width: 4px;
    border-radius: 23px;
    right: -5px;
    bottom: -8px;
    padding: 0 7px;
    box-shadow:
      7px 13px 25px #38383c2e,
      0 0 0 1px #8a8a90;
  }
  .phone-island {
    width: 40px;
    height: 10px;
    top: 5px;
  }
  .phone-status {
    font-size: 5px;
    padding-top: 8px;
    line-height: 1;
  }
  .phone-status > span {
    font-size: 4px;
    letter-spacing: 0.5px;
  }
  .phone-app-title {
    margin-top: 14px;
    font-size: 7px;
  }
  .phone-app-title img {
    width: 14px;
    height: 14px;
    border-radius: 4px;
  }
  .phone-banner {
    margin-top: 7px;
    min-height: 62px;
    padding: 10px 8px;
    border-radius: 5px;
  }
  .phone-banner > span {
    font-size: 4px;
  }
  .phone-banner > b {
    font-size: 9px;
    margin-top: 3px;
  }
  .phone-shortcuts {
    margin: 8px 2px 0;
    gap: 3px;
  }
  .phone-shortcuts > div {
    font-size: 4px;
  }
  .phone-shortcuts i {
    width: 18px;
    height: 18px;
    font-size: 9px;
    border-radius: 5px;
    margin-bottom: 3px;
  }
  .phone-section-heading {
    font-size: 6px;
    margin: 9px 0 6px;
  }
  .phone-section-heading > span {
    font-size: 4px;
  }
  .phone-course {
    gap: 4px;
    padding: 5px;
    border-radius: 4px;
  }
  .phone-course-art {
    width: 22px;
    height: 25px;
    font-size: 9px;
    border-radius: 3px;
  }
  .phone-course b {
    font-size: 5px;
  }
  .phone-course p {
    font-size: 4px;
    margin-top: 1px;
  }
  .progress-line {
    width: 54px;
    margin-top: 3px;
    height: 1px;
  }
  .progress-line > span {
    height: 1px;
  }
  .phone-note {
    margin-top: 6px;
    padding: 5px 7px;
    border-radius: 4px;
  }
  .phone-note > span {
    font-size: 4px;
  }
  .phone-note p {
    font-size: 5px;
    margin-top: 1px;
  }
  .phone-note i {
    font-size: 15px;
    right: 7px;
    bottom: 7px;
  }
  .phone-bottom {
    padding: 4px 4px 5px;
    font-size: 8px;
  }
  .phone-bottom small {
    font-size: 4px;
    margin-top: 2px;
  }
  .floating-note {
    left: -10px;
    bottom: 20px;
    padding: 8px 10px;
    border-radius: 8px;
    font-size: 6px;
    gap: 6px;
  }
  .floating-note svg {
    width: 17px;
    height: 17px;
  }
  .floating-note small {
    font-size: 5px;
    margin-top: 1px;
  }
  .hero-footnotes {
    margin-top: 38px;
    gap: 10px 20px;
    flex-wrap: wrap;
    font-size: 8px;
    padding: 20px 0;
    justify-content: center;
  }
  .hero-footnotes span + span {
    margin: 0;
    padding: 0;
    border: 0;
  }
  .section-heading h2,
  .start-header h2,
  .faq h2 {
    font-size: 34px;
    margin-top: 14px;
    line-height: 1.3;
  }
  .section-heading > p:last-child {
    font-size: 12px;
    line-height: 1.95;
    margin-top: 20px;
  }
  .eyebrow {
    font-size: 9px;
    letter-spacing: 0.1em;
  }
  .delivery-card {
    grid-template-columns: 1fr;
    margin-top: 30px;
    border-radius: 20px;
    min-height: 0;
  }
  .delivery-copy {
    padding: 28px 27px 10px;
  }
  .delivery-copy h3 {
    font-size: 28px;
    margin-top: 17px;
  }
  .delivery-copy > p {
    max-width: 350px;
    font-size: 12px;
    margin-top: 16px;
  }
  .delivery-copy > .text-link {
    margin-top: 18px;
    font-size: 11px;
  }
  .pill {
    font-size: 9px;
    padding: 5px 11px;
  }
  .delivery-diagram {
    padding: 40px 25px 34px;
    justify-content: space-evenly;
  }
  .delivery-diagram b {
    font-size: 10px;
    margin-top: 12px;
  }
  .delivery-diagram > div > span {
    font-size: 7px;
  }
  .cloud-node svg {
    width: 48px;
    height: 53px;
  }
  .brand-node img {
    width: 53px;
    height: 53px;
    border-radius: 15px;
  }
  .learner-node svg {
    width: 43px;
    height: 53px;
  }
  .connection {
    margin-bottom: 43px;
    max-width: 66px;
  }
  .delivery-diagram .connection > span {
    font-size: 6px;
    top: 8px;
  }
  .benefit-row {
    grid-template-columns: 1fr;
    gap: 21px;
    margin-top: 26px;
  }
  .benefit-row > div {
    padding: 17px 0 0 39px;
    position: relative;
  }
  .benefit-number {
    position: absolute;
    top: 18px;
    left: 0;
    font-size: 11px;
  }
  .benefit-row h3 {
    font-size: 15px;
    margin-top: 0;
  }
  .benefit-row p {
    font-size: 11px;
    margin-top: 7px;
    max-width: 400px;
  }
  .cost-note {
    font-size: 9px;
    margin-top: 25px;
    padding-top: 18px;
  }
  .capability-shell {
    margin-top: 30px;
    border-radius: 20px;
  }
  .capability-tabs {
    padding: 10px 8px;
    gap: 3px;
  }
  .capability-tabs button {
    font-size: 10px;
    padding: 9px 5px;
    border-radius: 7px;
    min-width: 0;
  }
  .capability-panel {
    grid-template-columns: 1fr;
    padding: 27px 24px 24px;
    gap: 27px;
    min-height: 0;
  }
  .capability-copy h3 {
    font-size: 28px;
    margin-top: 17px;
  }
  .capability-copy > p {
    font-size: 12px;
    max-width: 100%;
    margin-top: 16px;
  }
  .check-list {
    margin-top: 18px;
    font-size: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 5px 16px;
  }
  .check-list li {
    margin: 0;
  }
  .capability-visual {
    min-height: 270px;
    padding: 19px;
  }
  .visual-label {
    font-size: 8px;
  }
  .mini-player {
    aspect-ratio: 1.9;
  }
  .lesson-line {
    font-size: 8px;
    padding-top: 11px;
  }
  .lesson-line .lesson-state {
    font-size: 7px;
  }
  .capability-note {
    text-align: left;
    font-size: 8px;
    line-height: 1.9;
    margin: 12px 4px 0;
  }
  .feature-pair {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 24px;
  }
  .feature-pair article {
    padding: 28px;
    border-radius: 18px;
  }
  .feature-glyph {
    font-size: 24px;
    margin-bottom: 20px;
  }
  .feature-pair h3 {
    font-size: 22px;
  }
  .feature-pair p {
    font-size: 12px;
  }
  .feature-pair .text-link {
    margin-top: 18px;
    font-size: 11px;
  }
  .question-visual h4 {
    font-size: 13px;
  }
  .demo-answers button {
    font-size: 10px;
    padding: 10px;
    min-height: 40px;
  }
  .task-visual {
    padding-bottom: 12px;
  }
  .task-row {
    padding: 15px 0;
    gap: 10px;
  }
  .task-heading h4 {
    font-size: 13px;
  }
  .task-row b {
    font-size: 10px;
  }
  .task-badge {
    font-size: 7px;
    padding-inline: 5px;
  }
  .task-check {
    width: 23px;
    height: 23px;
    font-size: 11px;
  }
  .protection {
    padding-bottom: 35px;
  }
  .security-heading h2 {
    font-size: 33px;
    margin-top: 14px;
  }
  .security-heading > p:last-child {
    font-size: 12px;
    line-height: 1.9;
    margin-top: 20px;
  }
  .protection-grid {
    gap: 26px 23px;
    margin-top: 35px;
  }
  .protection-grid article {
    padding-top: 20px;
  }
  .protection-grid svg {
    width: 27px;
    height: 27px;
    margin-bottom: 17px;
  }
  .protection-grid h3 {
    font-size: 14px;
  }
  .protection-grid p {
    font-size: 10px;
    line-height: 1.9;
    margin-top: 11px;
  }
  .security-note {
    font-size: 8px;
    margin-top: 28px;
    padding-top: 18px;
  }
  .start-header {
    display: block;
  }
  .start-header > p {
    font-size: 12px;
    line-height: 1.9;
    margin-top: 20px;
  }
  .steps {
    grid-template-columns: 1fr;
    gap: 26px;
    margin-top: 31px;
  }
  .steps li {
    padding: 19px 0 0 48px;
    min-height: 95px;
  }
  .step-index {
    position: absolute;
    left: 0;
    top: 23px;
    font-size: 24px;
  }
  .steps h3 {
    font-size: 17px;
    margin-top: 0;
  }
  .steps p {
    font-size: 11px;
    max-width: none;
    margin-top: 9px;
  }
  .platform-strip {
    display: block;
    margin-top: 32px;
    padding-top: 25px;
  }
  .platform-strip b {
    font-size: 14px;
  }
  .platform-strip p {
    font-size: 10px;
    margin-top: 8px;
  }
  .platform-strip .button {
    margin-top: 21px;
    font-size: 11px;
    padding: 9px 18px;
    min-height: 40px;
  }
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .faq-intro h2 br {
    display: none;
  }
  .faq-intro > p:not(.eyebrow) {
    font-size: 12px;
    margin-top: 17px;
  }
  .faq-intro > p:not(.eyebrow) > br {
    display: none;
  }
  .faq-intro > .text-link {
    margin-top: 15px;
    font-size: 11px;
  }
  .faq-list details {
    padding-block: 19px;
  }
  .faq-list summary {
    font-size: 12px;
    gap: 18px;
  }
  .faq-list details p {
    font-size: 11px;
    line-height: 1.95;
    padding-right: 10px;
    margin-top: 13px;
  }
  .closing {
    padding-top: 0;
    padding-bottom: 45px;
  }
  .closing-card {
    padding: 40px 20px 39px;
    border-radius: 20px;
  }
  .closing-mark {
    font-size: 28px;
    margin-bottom: 17px;
  }
  .closing-card .eyebrow {
    font-size: 7px;
    letter-spacing: 0.12em;
  }
  .closing-card h2 {
    font-size: 37px;
    margin-top: 16px;
    line-height: 1.3;
  }
  .closing-card > p:not(.eyebrow) {
    font-size: 12px;
    margin-top: 18px;
  }
  .closing-card .actions {
    margin-top: 25px;
    gap: 9px;
  }
  .closing-card .button {
    font-size: 11px;
    min-height: 42px;
    padding: 10px 19px;
    gap: 16px;
  }
  .closing-card::before {
    left: -345px;
    top: 55px;
  }
  .closing-card::after {
    right: -345px;
  }
  .footer-top {
    display: block;
    padding-bottom: 29px;
  }
  .footer-top > div > p {
    font-size: 10px;
    margin-top: 9px;
    margin-left: 41px;
  }
  .footer-links {
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-top: 30px;
  }
  .footer-links b {
    font-size: 10px;
  }
  .footer-links > div {
    font-size: 10px;
    gap: 8px;
  }
  .footer-contact {
    font-size: 8px;
    white-space: nowrap;
  }
  .footer-bottom {
    gap: 12px 20px;
    font-size: 8px;
    line-height: 1.8;
    padding-top: 20px;
  }
  .footer-bottom > span:last-child {
    width: 100%;
  }
  .site-footer {
    padding-top: 0;
    padding-bottom: 23px;
  }
  .site-dialog {
    padding: 35px 26px;
    border-radius: 20px;
  }
  .site-dialog h2 {
    font-size: 29px;
  }
  .contact-field {
    gap: 7px;
    padding-left: 10px;
  }
  .contact-field input {
    font-size: 14px;
  }
  .contact-field button {
    font-size: 9px;
    padding: 8px;
  }
  .wechat-dialog h2 {
    font-size: 22px;
  }
  .legal-header,
  .legal-content {
    width: calc(100% - 36px);
  }
  .legal-content {
    font-size: 12px;
  }
  .legal-content h1 {
    font-size: 27px;
  }
  .legal-content h2 {
    font-size: 17px;
  }
  .legal-meta {
    font-size: 10px;
  }
}
@media (max-width: 380px) {
  .container {
    width: calc(100% - 30px);
  }
  .nav-row {
    gap: 8px;
  }
  .brand {
    font-size: 13px;
    gap: 7px;
  }
  .brand img {
    width: 28px;
    height: 28px;
  }
  .button-small {
    font-size: 9px;
    padding-inline: 10px;
  }
  .menu-toggle {
    width: 28px;
    padding: 5px;
  }
  .hero h1 {
    font-size: 35px;
  }
  .hero-description {
    font-size: 11px;
  }
  .hero-description br {
    display: none;
  }
  .hero-eyebrow {
    font-size: 8px;
  }
  .product-stage {
    margin-left: 0;
    margin-right: 0;
    padding-right: 40px;
  }
  .workspace {
    grid-template-columns: 65px 1fr;
    min-height: 240px;
  }
  .workspace-sidebar {
    padding-inline: 4px;
  }
  .sidebar-item {
    font-size: 5px;
    padding-inline: 3px;
  }
  .sidebar-item span {
    font-size: 8px;
  }
  .workspace-main {
    padding-inline: 9px;
  }
  .mountain-banner {
    min-height: 85px;
    padding-inline: 10px;
  }
  .mountain-banner h2 {
    font-size: 10px;
  }
  .course-cover {
    height: 61px;
  }
  .course-cover > b {
    font-size: 8px;
  }
  .phone-device {
    width: 115px;
    height: 250px;
    bottom: -9px;
    padding-inline: 6px;
  }
  .phone-app-title {
    font-size: 6px;
  }
  .phone-banner {
    min-height: 57px;
    padding: 8px 6px;
  }
  .phone-banner > b {
    font-size: 8px;
  }
  .phone-note {
    margin-top: 5px;
    padding: 4px 6px;
  }
  .phone-note p {
    font-size: 5px;
  }
  .phone-course b {
    font-size: 4px;
  }
  .hero-footnotes {
    font-size: 7px;
    gap: 9px 16px;
  }
  .section-heading h2,
  .start-header h2,
  .faq h2 {
    font-size: 30px;
  }
  .security-heading h2 {
    font-size: 29px;
  }
  .delivery-diagram {
    padding-inline: 17px;
  }
  .cloud-node svg {
    width: 43px;
  }
  .brand-node img {
    width: 46px;
    height: 46px;
  }
  .delivery-diagram b {
    font-size: 9px;
  }
  .delivery-diagram > div > span {
    font-size: 6px;
  }
  .capability-panel {
    padding: 23px 19px;
    gap: 23px;
  }
  .capability-tabs button {
    font-size: 9px;
  }
  .capability-visual {
    padding: 15px;
  }
  .feature-pair article {
    padding: 25px;
  }
  .task-row {
    gap: 7px;
  }
  .task-row b {
    font-size: 9px;
  }
  .task-badge {
    font-size: 6px;
  }
  .footer-links {
    gap: 10px;
  }
  .footer-contact {
    font-size: 7px;
  }
  .closing-card h2 {
    font-size: 33px;
  }
  .closing-card .button {
    font-size: 10px;
    padding-inline: 16px;
  }
  .contact-field input {
    font-size: 13px;
  }
}
/* 限制说明与正文保持可读，避免浅灰小字削弱关键费用前提。 */
.hero-description,
.section-heading > p:last-child,
.delivery-copy > p,
.benefit-row p,
.capability-copy > p,
.feature-pair p,
.start-header > p,
.steps p,
.platform-strip p,
.faq-intro > p:not(.eyebrow),
.faq-list details p,
.closing-card > p:not(.eyebrow) {
  color: #65666c;
}
.cost-note,
.capability-note {
  font-size: 12px;
  color: #66676d;
  text-align: left;
  line-height: 1.9;
}
.security-note {
  font-size: 12px;
  color: #acadb1;
  line-height: 1.9;
}
.protection-grid p,
.security-heading > p:last-child {
  color: #afafb3;
}
.check-list {
  color: #66676d;
}
.site-dialog > p:not(.eyebrow) {
  color: #67686f;
}
.delivery-card,
.capability-panel {
  min-width: 0;
}
.delivery-copy,
.delivery-diagram,
.capability-copy,
.capability-visual {
  min-width: 0;
}
@media (max-width: 700px) {
  .delivery-card {
    grid-template-columns: minmax(0, 1fr);
  }
  .faq-list details p {
    font-size: 12px;
  }
  .section-heading > p:last-child,
  .hero-description,
  .delivery-copy > p,
  .benefit-row p,
  .capability-copy > p,
  .feature-pair p,
  .start-header > p,
  .steps p,
  .platform-strip p {
    font-size: 12px;
  }
  .delivery-diagram {
    gap: 0;
  }
  .delivery-diagram .connection {
    flex-basis: 15px;
    min-width: 10px;
  }
  .cloud-node,
  .brand-node,
  .learner-node {
    min-width: 0;
  }
  .site-dialog > .copy-status {
    font-size: 11px !important;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
  .reveal.is-pending {
    opacity: 1;
    transform: none;
  }
}