:root {
  --ink: #182230;
  --muted: #667085;
  --soft: #f6f8fb;
  --line: #e4e7ec;
  --blue: #1769e0;
  --green: #1f9d66;
  --red: #df514b;
  --amber: #c7851d;
  --deep: #152033;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  letter-spacing: 0;
  background: var(--white);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 68px;
  display: flex;
  align-items: center;
  gap: 36px;
  padding: 0 clamp(20px, 5vw, 76px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}

.brand-mark {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.site-header nav {
  display: flex;
  gap: 26px;
  margin-left: auto;
  color: #475467;
  font-size: 14px;
}

.site-header nav a {
  padding: 24px 0;
  border-bottom: 2px solid transparent;
}

.site-header nav a:hover,
.site-header nav a.active {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

.header-action,
.primary,
.secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 20px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 700;
}

.header-action,
.primary {
  color: var(--white);
  background: var(--blue);
}

.secondary {
  border-color: #98a2b3;
  color: var(--ink);
  background: var(--white);
}

.hero {
  position: relative;
  height: min(680px, calc(100vh - 68px));
  min-height: 560px;
  overflow: hidden;
}

.hero > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.9) 32%, rgba(255, 255, 255, 0.08) 66%);
}

.hero-content {
  position: absolute;
  top: 50%;
  left: clamp(24px, 7vw, 112px);
  width: min(620px, 48vw);
  transform: translateY(-50%);
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 700;
}

.hero h1,
.page-hero h1 {
  margin: 0 0 22px;
  font-size: clamp(38px, 5vw, 68px);
  line-height: 1.08;
}

.hero p:not(.eyebrow),
.page-hero p:not(.eyebrow) {
  color: #475467;
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions,
.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-hero {
  padding: 96px clamp(24px, 7vw, 112px) 76px;
  background: linear-gradient(135deg, #f7faff 0%, #ffffff 52%, #f4fbf7 100%);
  border-bottom: 1px solid var(--line);
}

.page-hero p {
  max-width: 760px;
}

.product-detail-hero {
  background:
    linear-gradient(90deg, rgba(21, 32, 51, 0.92), rgba(23, 105, 224, 0.7)),
    url("assets/commerce-platform-hero.png") center / cover;
  color: var(--white);
}

.product-detail-hero .eyebrow,
.product-detail-hero p:not(.eyebrow) {
  color: #eaf1ff;
}

.section-split,
.intro,
.about,
.contact {
  display: grid;
  grid-template-columns: minmax(240px, 0.9fr) minmax(0, 1.1fr);
  gap: 8vw;
  padding: 90px clamp(24px, 7vw, 112px);
}

h2 {
  margin: 0;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.3;
}

.intro > p,
.section-split p,
.about p,
.contact p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.9;
}

.feature-band,
.catalog-section,
.content-rules {
  padding: 90px clamp(24px, 7vw, 112px);
  background: var(--soft);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 42px;
}

.section-heading > p:last-child {
  color: var(--muted);
  line-height: 1.8;
}

.feature-grid,
.rule-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid #d7dce3;
  border-left: 1px solid #d7dce3;
}

.feature-grid article,
.rule-grid article {
  min-height: 220px;
  padding: 28px;
  border-right: 1px solid #d7dce3;
  border-bottom: 1px solid #d7dce3;
  background: var(--white);
}

.feature-grid.compact article {
  min-height: 190px;
}

.feature-grid article span {
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}

.feature-grid h3,
.rule-grid h3,
.product-card h2,
.solution-grid h2,
.help-list h2 {
  margin: 0 0 10px;
  font-size: 21px;
  line-height: 1.35;
}

.feature-grid h3 {
  margin-top: 34px;
}

.feature-grid p,
.process p,
.rule-grid p,
.product-card p,
.solution-grid p,
.help-list p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.product-highlight,
.process {
  padding: 90px clamp(24px, 7vw, 112px);
}

.highlight-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: 48px;
  align-items: start;
}

.check-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: #475467;
  line-height: 1.8;
}

.check-list li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 10px;
  height: 10px;
  background: var(--green);
}

.metric-panel {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  background: #fbfcfe;
}

.metric-panel div {
  min-height: 138px;
  display: grid;
  align-content: center;
  gap: 8px;
  padding: 26px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.metric-panel strong {
  font-size: 30px;
  color: var(--blue);
}

.metric-panel span {
  color: var(--muted);
}

.process ol {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.process ol.six-step {
  grid-template-columns: repeat(3, 1fr);
}

.process li {
  display: flex;
  gap: 16px;
  min-height: 132px;
  padding-top: 22px;
  border-top: 3px solid var(--line);
}

.process li:nth-child(1) { border-color: var(--blue); }
.process li:nth-child(2) { border-color: var(--green); }
.process li:nth-child(3) { border-color: var(--red); }
.process li:nth-child(4) { border-color: var(--amber); }

.process b {
  font-size: 26px;
}

.process h3 {
  margin: 3px 0 8px;
}

.about {
  background: var(--deep);
  color: var(--white);
}

.about .section-kicker {
  color: #86b4ff;
}

.about p {
  color: #d0d5dd;
}

.about p + p {
  margin-top: 16px;
}

.contact-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.contact-list p {
  display: grid;
  grid-template-columns: 100px 1fr;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.contact-list span {
  color: var(--ink);
  font-weight: 700;
}

.product-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.product-card,
.solution-grid article,
.help-list article,
.case-grid article {
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-height: 320px;
  padding: 30px;
  border: 1px solid var(--line);
  background: var(--white);
}

.product-card.featured {
  border-color: rgba(23, 105, 224, 0.45);
  box-shadow: 0 18px 45px rgba(23, 105, 224, 0.11);
}

.product-card-with-media {
  overflow: hidden;
  padding-top: 0;
}

.product-card-media {
  aspect-ratio: 16 / 9;
  margin: 0 -30px;
  overflow: hidden;
  background: #052e70;
}

.product-card-media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center 38%;
}

.muted-card {
  background: #fbfcfe;
}

.file-archive-hero {
  position: relative;
  min-height: min(760px, calc(100vh - 68px));
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: var(--white);
  background: #042a63 url("assets/file-archive/cover.png") center / contain no-repeat;
}

.file-archive-hero-copy {
  width: 100%;
  padding: 34px clamp(24px, 7vw, 112px) 40px;
  background: rgba(4, 24, 61, 0.9);
}

.file-archive-hero h1 {
  max-width: 900px;
  margin: 0 0 12px;
  font-size: clamp(36px, 4vw, 58px);
  line-height: 1.12;
}

.file-archive-hero p:not(.eyebrow) {
  max-width: 800px;
  margin: 0;
  color: #eaf2ff;
  font-size: 17px;
  line-height: 1.75;
}

.file-archive-hero .eyebrow {
  color: #68dfcf;
}

.file-archive-hero .secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.7);
  background: transparent;
}

.inline-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.inline-facts li {
  min-height: 110px;
  display: grid;
  align-content: center;
  gap: 5px;
  padding: 20px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.inline-facts strong {
  color: var(--blue);
  font-size: 27px;
}

.inline-facts span {
  color: var(--muted);
  font-size: 13px;
}

.product-interface,
.product-gallery,
.product-architecture {
  padding: 90px clamp(24px, 7vw, 112px);
}

.product-interface {
  background: #f7f9fc;
}

.wide-product-shot {
  max-width: 1120px;
  margin: 0 auto;
}

.wide-product-shot img,
.architecture-layout figure img,
.product-gallery-grid img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid #d8e2f0;
  border-radius: 6px;
}

.product-architecture {
  background: #081a38;
  color: var(--white);
}

.product-architecture .section-kicker {
  color: #67decf;
}

.product-architecture .section-heading > p:last-child,
.product-architecture .plain-steps p {
  color: #c6d5eb;
}

.architecture-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(420px, 1.2fr);
  gap: 64px;
  align-items: start;
}

.architecture-layout figure {
  margin: 0;
}

.plain-steps {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.plain-steps li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.plain-steps b {
  color: #67decf;
  font-size: 23px;
}

.plain-steps h3 {
  margin: 0 0 7px;
}

.plain-steps p {
  margin: 0;
  line-height: 1.7;
}

.product-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.product-gallery-grid figure {
  margin: 0;
}

.product-gallery-grid figcaption {
  padding: 14px 2px 0;
  color: var(--muted);
  font-size: 14px;
}

.file-product-summary {
  display: grid;
  grid-template-columns: minmax(360px, 0.9fr) minmax(0, 1.1fr);
  gap: 64px;
  align-items: center;
  padding: 90px clamp(24px, 7vw, 112px);
  background: #f1f8f7;
}

.file-product-summary-media img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
}

.file-product-summary > div > p:not(.section-kicker) {
  color: var(--muted);
  line-height: 1.8;
}

.file-product-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 72px clamp(24px, 7vw, 112px);
  color: var(--white);
  background: #0b315e;
}

.file-product-cta .section-kicker {
  color: #67decf;
}

.file-product-cta p:not(.section-kicker) {
  margin-bottom: 0;
  color: #d5e1ef;
}

.file-product-cta .primary {
  flex: 0 0 auto;
  background: #1f9d83;
}

.status {
  width: fit-content;
  margin: 0 0 14px;
  padding: 6px 10px;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  background: #eef2f6;
}

.status.online {
  color: #126145;
  background: #e8f7ef;
}

.status.planning {
  color: #8a5b10;
  background: #fff4dc;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: auto 0 0;
  padding: 0;
  list-style: none;
}

.tag-list li {
  padding: 7px 10px;
  color: #475467;
  font-size: 13px;
  background: #f2f4f7;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-grid dl {
  display: grid;
  gap: 12px;
  margin: auto 0 0;
}

.case-grid dl div {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.case-grid dt {
  color: var(--ink);
  font-weight: 700;
}

.case-grid dd {
  margin: 0;
  color: var(--muted);
}

.case-grid a {
  width: fit-content;
  margin-top: auto;
  color: var(--blue);
  font-weight: 700;
}

.solution-grid span {
  width: fit-content;
  padding: 7px 10px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  background: #eaf2ff;
}

.solution-grid a {
  width: fit-content;
  margin-top: auto;
  color: var(--blue);
  font-weight: 700;
}

.content-rules {
  background: var(--white);
}

.rule-grid a {
  display: inline-flex;
  width: fit-content;
  margin-top: 20px;
  color: var(--blue);
  font-weight: 700;
}

.help-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 32px;
  padding: 70px clamp(24px, 7vw, 112px) 90px;
  background: var(--soft);
}

.help-nav {
  position: sticky;
  top: 92px;
  align-self: start;
  display: grid;
  border: 1px solid var(--line);
  background: var(--white);
}

.help-nav a {
  padding: 15px 18px;
  color: #475467;
  border-bottom: 1px solid var(--line);
}

.help-nav a:last-child {
  border-bottom: 0;
}

.help-nav a:hover {
  color: var(--blue);
  background: #f6faff;
}

.help-list {
  display: grid;
  gap: 18px;
}

.help-list article {
  min-height: auto;
}

.help-search-panel {
  display: grid;
  gap: 26px;
  padding: 76px clamp(24px, 7vw, 112px) 90px;
  background: var(--soft);
}

.help-tools {
  display: grid;
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--white);
}

.help-tools label {
  display: grid;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
}

.help-tools input {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid #98a2b3;
  color: var(--ink);
  font: inherit;
  background: var(--white);
}

.help-tools input:focus {
  outline: 2px solid rgba(23, 105, 224, 0.18);
  border-color: var(--blue);
}

.help-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.help-filters button {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid #c8d0dc;
  color: #475467;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  background: var(--white);
  cursor: pointer;
}

.help-filters button.is-active {
  border-color: var(--blue);
  color: var(--white);
  background: var(--blue);
}

.help-count {
  margin: 0;
  color: var(--muted);
  font-weight: 700;
}

.help-card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.help-card-grid article {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 250px;
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--white);
}

.help-card-grid article[hidden] {
  display: none;
}

.help-card-grid span {
  width: fit-content;
  padding: 6px 9px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  background: #eaf2ff;
}

.help-card-grid h3 {
  margin: 0;
  font-size: 19px;
  line-height: 1.35;
}

.help-card-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.help-card-grid a {
  width: fit-content;
  margin-top: auto;
  color: var(--blue);
  font-weight: 700;
}

.help-empty {
  display: grid;
  gap: 14px;
  max-width: 520px;
  padding: 26px;
  border: 1px solid var(--line);
  background: var(--white);
}

.help-empty[hidden] {
  display: none;
}

.help-empty h3,
.help-empty p {
  margin: 0;
}

.help-empty p {
  color: var(--muted);
  line-height: 1.8;
}

.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 42px;
  padding: 76px clamp(24px, 7vw, 112px) 90px;
  background: var(--white);
}

.article-body {
  min-width: 0;
}

.article-body h2 {
  margin: 0 0 24px;
  font-size: clamp(26px, 2.6vw, 36px);
}

.article-body h2:not(:first-child) {
  margin-top: 58px;
}

.article-body h3 {
  margin: 0 0 10px;
  font-size: 19px;
}

.article-body p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.info-grid > div {
  min-height: 150px;
  padding: 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fbfcfe;
}

.step-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.step-list li {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.step-list strong {
  color: var(--ink);
}

.step-list span {
  color: var(--muted);
  line-height: 1.75;
}

.do-dont {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.do-dont > div {
  min-height: 150px;
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--soft);
}

.side-panel {
  position: sticky;
  top: 96px;
  align-self: start;
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--soft);
}

.side-panel h2 {
  font-size: 22px;
}

.side-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.onboarding-board,
.pricing-section,
.diagnostic-section {
  padding: 90px clamp(24px, 7vw, 112px);
}

.onboarding-board {
  background: var(--soft);
}

.checklist-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.checklist-grid article {
  display: grid;
  gap: 16px;
  align-content: start;
  min-height: 260px;
  padding: 26px;
  border: 1px solid var(--line);
  background: var(--white);
}

.checklist-grid span {
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}

.checklist-grid h3 {
  margin: 0;
  font-size: 20px;
}

.checklist-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.checklist-grid a {
  align-self: end;
  color: var(--blue);
  font-weight: 700;
}

.diagnostic-section {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(0, 1.1fr);
  gap: 8vw;
  background: var(--white);
}

.diagnostic-section p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.diagnostic-list {
  display: grid;
  border-top: 1px solid var(--line);
}

.diagnostic-list p {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.diagnostic-list span {
  color: var(--ink);
  font-weight: 700;
}

.diagnostic-list a {
  color: var(--blue);
  font-weight: 700;
}

.pricing-section {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  background: var(--soft);
}

.price-card {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-height: 500px;
  padding: 32px;
  border: 1px solid var(--line);
  background: var(--white);
}

.price-card.recommended {
  border-color: rgba(23, 105, 224, 0.45);
  box-shadow: 0 18px 45px rgba(23, 105, 224, 0.11);
}

.price-card h2 {
  font-size: 28px;
}

.price-card .price {
  margin: 0;
  color: var(--blue);
  font-size: 32px;
  font-weight: 700;
}

.price-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.price-card ul {
  display: grid;
  gap: 12px;
  margin: 0 0 auto;
  padding: 0;
  list-style: none;
}

.price-card li {
  position: relative;
  padding-left: 22px;
  color: #475467;
  line-height: 1.7;
}

.price-card li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--green);
}

.launch-check {
  display: grid;
  gap: 36px;
  padding: 76px clamp(24px, 7vw, 112px) 90px;
  background: var(--soft);
}

.launch-summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 32px;
  align-items: end;
  padding: 30px;
  border: 1px solid var(--line);
  background: var(--white);
}

.launch-summary h2 {
  font-size: clamp(28px, 3vw, 40px);
}

.launch-summary p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.progress-meter {
  display: grid;
  gap: 12px;
}

.progress-meter span {
  color: var(--blue);
  font-size: 34px;
  font-weight: 700;
  text-align: right;
}

.progress-meter div {
  height: 12px;
  overflow: hidden;
  background: #e7edf6;
}

.progress-meter i {
  display: block;
  width: 0;
  height: 100%;
  background: var(--blue);
  transition: width 0.2s ease;
}

.check-section {
  display: grid;
  gap: 18px;
}

.check-section-title {
  display: flex;
  align-items: center;
  gap: 14px;
}

.check-section-title span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: var(--white);
  font-weight: 700;
  background: var(--blue);
}

.check-section-title h2 {
  font-size: clamp(24px, 2.5vw, 34px);
}

.check-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.check-items article {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 18px;
  min-height: 190px;
  padding: 22px;
  border: 1px solid var(--line);
  background: var(--white);
}

.check-items article.is-done {
  border-color: rgba(31, 157, 102, 0.55);
  background: #f4fbf7;
}

.check-button {
  align-self: start;
  min-height: 38px;
  border: 1px solid #98a2b3;
  color: #475467;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  background: var(--white);
  cursor: pointer;
}

.check-button[aria-pressed="true"] {
  border-color: var(--green);
  color: var(--white);
  background: var(--green);
}

.check-items h3 {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.35;
}

.check-items p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.check-items a {
  display: inline-flex;
  margin-top: 16px;
  color: var(--blue);
  font-weight: 700;
}

.copy-button {
  font-family: inherit;
  cursor: pointer;
}

.materials-page {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 42px;
  padding: 76px clamp(24px, 7vw, 112px) 90px;
  background: var(--soft);
}

.materials-side {
  position: sticky;
  top: 96px;
  align-self: start;
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--white);
}

.materials-side h2 {
  font-size: 22px;
}

.materials-side p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.materials-content {
  display: grid;
  gap: 24px;
}

.materials-copy-source {
  white-space: pre-wrap;
  padding: 24px;
  color: #475467;
  line-height: 1.75;
  border: 1px dashed #b8c4d5;
  background: var(--white);
}

.materials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.materials-grid article {
  min-height: 320px;
  padding: 26px;
  border: 1px solid var(--line);
  background: var(--white);
}

.materials-grid span {
  display: inline-flex;
  margin-bottom: 20px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}

.materials-grid h2 {
  font-size: 22px;
}

.materials-grid ul {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding-left: 18px;
}

.materials-grid li {
  color: var(--muted);
  line-height: 1.7;
}

.request-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 42px;
  padding: 76px clamp(24px, 7vw, 112px) 90px;
  background: var(--soft);
}

.request-form {
  display: grid;
  gap: 18px;
  padding: 30px;
  border: 1px solid var(--line);
  background: var(--white);
}

.request-form label {
  display: grid;
  gap: 8px;
}

.request-form label span {
  color: var(--ink);
  font-weight: 700;
}

.request-form input,
.request-form select,
.request-form textarea {
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid #98a2b3;
  color: var(--ink);
  font: inherit;
  background: var(--white);
}

.request-form textarea {
  min-height: 120px;
  padding-top: 12px;
  resize: vertical;
}

.request-form input:focus,
.request-form select:focus,
.request-form textarea:focus {
  outline: 2px solid rgba(23, 105, 224, 0.18);
  border-color: var(--blue);
}

.request-output {
  position: sticky;
  top: 96px;
  align-self: start;
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--white);
}

.request-output h2 {
  font-size: 24px;
}

.request-output p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
}

.request-output pre {
  white-space: pre-wrap;
  min-height: 260px;
  margin: 0;
  padding: 18px;
  color: #475467;
  line-height: 1.7;
  border: 1px dashed #b8c4d5;
  background: #fbfcfe;
}

footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  padding: 42px clamp(24px, 7vw, 112px);
  color: #667085;
  background: #f8fafc;
  border-top: 1px solid var(--line);
}

footer p,
footer small {
  margin: 0;
}

footer > div:last-of-type {
  display: flex;
  gap: 22px;
}

footer small {
  grid-column: 1 / -1;
}

.legal {
  max-width: 920px;
  margin: 0 auto;
  padding: 70px 24px;
}

.legal h1 {
  font-size: 38px;
}

.legal h2 {
  margin-top: 38px;
  font-size: 22px;
}

.legal p,
.legal li {
  color: #475467;
  line-height: 1.9;
}

.legal-back {
  display: inline-block;
  margin-bottom: 30px;
  color: var(--blue);
}

@media (max-width: 1020px) {
  .site-header {
    flex-wrap: wrap;
    gap: 14px 24px;
    padding: 14px 20px;
  }

  .site-header nav {
    order: 3;
    width: 100%;
    gap: 18px;
    overflow-x: auto;
  }

  .site-header nav a {
    padding: 6px 0 10px;
    white-space: nowrap;
  }

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

  .hero {
    min-height: 640px;
  }

  .hero-content {
    width: min(680px, calc(100% - 48px));
  }

  .product-list,
  .solution-grid,
  .case-grid,
  .materials-grid,
  .help-card-grid,
  .feature-grid,
  .rule-grid,
  .checklist-grid,
  .check-items,
  .pricing-section,
  .process ol,
  .process ol.six-step {
    grid-template-columns: repeat(2, 1fr);
  }

  .highlight-layout {
    grid-template-columns: 1fr;
  }

  .architecture-layout,
  .file-product-summary {
    grid-template-columns: 1fr;
  }

  .product-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .site-header {
    position: static;
  }

  .hero {
    height: 640px;
    min-height: 640px;
  }

  .hero > img {
    object-position: 66% center;
  }

  .hero-shade {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.93) 54%, rgba(255, 255, 255, 0.12) 84%);
  }

  .hero-content {
    top: 40%;
    left: 24px;
    width: calc(100% - 48px);
  }

  .hero h1,
  .page-hero h1 {
    font-size: 36px;
  }

  .hero p:not(.eyebrow),
  .page-hero p:not(.eyebrow) {
    font-size: 16px;
  }

  .section-split,
  .intro,
  .about,
  .contact {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 64px 24px;
  }

  .page-hero,
  .feature-band,
  .product-highlight,
  .process,
  .catalog-section,
  .content-rules,
  .help-search-panel {
    padding: 64px 24px;
  }

  .product-list,
  .solution-grid,
  .case-grid,
  .materials-grid,
  .help-card-grid,
  .feature-grid,
  .rule-grid,
  .process ol,
  .process ol.six-step,
  .checklist-grid,
  .check-items,
  .pricing-section,
  .metric-panel,
  .help-layout,
  .detail-layout,
  .materials-page,
  .request-layout,
  .launch-summary,
  .diagnostic-section {
    grid-template-columns: 1fr;
  }

  .file-archive-hero {
    min-height: 720px;
    background-position: center top;
    background-size: 100% auto;
  }

  .file-archive-hero-copy {
    padding: 28px 24px 34px;
  }

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

  .inline-facts,
  .architecture-layout,
  .product-gallery-grid,
  .file-product-summary {
    grid-template-columns: 1fr;
  }

  .product-interface,
  .product-gallery,
  .product-architecture,
  .file-product-summary {
    padding: 64px 24px;
  }

  .file-product-cta {
    align-items: flex-start;
    flex-direction: column;
    padding: 56px 24px;
  }

  .feature-grid,
  .rule-grid {
    border-left: 0;
  }

  .feature-grid article,
  .rule-grid article {
    border-left: 1px solid #d7dce3;
  }

  .help-layout {
    gap: 20px;
    padding: 40px 24px 64px;
  }

  .onboarding-board,
  .pricing-section,
  .launch-check,
  .materials-page,
  .request-layout,
  .diagnostic-section {
    padding: 64px 24px;
  }

  .progress-meter span {
    text-align: left;
  }

  .check-items article {
    grid-template-columns: 1fr;
  }

  .diagnostic-list p {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .info-grid,
  .do-dont {
    grid-template-columns: 1fr;
  }

  .step-list li {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .side-panel {
    position: static;
  }

  .materials-side {
    position: static;
  }

  .request-output {
    position: static;
  }

  .help-nav {
    position: static;
  }

  .contact-list p {
    grid-template-columns: 90px 1fr;
  }

  footer {
    grid-template-columns: 1fr;
  }
}

/* 帮助文档公共壳层：目录、搜索、文章正文和章节导航。 */
.docs-page,
.docs-home {
  background: #f7f8fa;
}

.docs-page .site-header,
.docs-home .site-header {
  gap: 24px;
  background: rgba(255, 255, 255, 0.98);
}

.docs-page .site-header nav,
.docs-home .site-header nav {
  margin-left: 24px;
}

.docs-header-search {
  position: relative;
  width: min(300px, 24vw);
  margin-left: auto;
}

.docs-header-search input {
  width: 100%;
  min-height: 44px;
  padding: 0 46px 0 16px;
  border: 1px solid #b8c2d1;
  border-radius: 10px;
  color: var(--ink);
  font: inherit;
  background: var(--white);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.docs-header-search input:focus {
  outline: 0;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(23, 105, 224, 0.12);
}

.docs-search-icon {
  position: absolute;
  top: 50%;
  right: 16px;
  font-size: 24px;
  line-height: 1;
  transform: translateY(-54%);
  pointer-events: none;
}

.docs-search-results {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 50;
  width: min(440px, 88vw);
  max-height: 420px;
  overflow-y: auto;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  box-shadow: 0 18px 50px rgba(21, 32, 51, 0.16);
}

.docs-search-results[hidden] {
  display: none;
}

.docs-search-results a {
  display: grid;
  gap: 5px;
  padding: 12px 14px;
  border-radius: 8px;
}

.docs-search-results a:hover {
  color: var(--blue);
  background: #f2f6fc;
}

.docs-search-results small {
  color: var(--muted);
}

.docs-search-empty {
  margin: 0;
  padding: 20px;
  color: var(--muted);
  text-align: center;
}

.docs-page .page-hero,
.docs-home .page-hero {
  padding-top: 64px;
  padding-bottom: 54px;
  background: var(--white);
}

.docs-page .page-hero h1,
.docs-home .page-hero h1 {
  font-size: clamp(34px, 4vw, 52px);
}

.docs-copy-link {
  cursor: pointer;
}

.docs-workspace,
.docs-home-workspace,
.docs-special-workspace {
  width: 100%;
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
  align-items: start;
  gap: 0;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 64px) 88px;
  background: #f7f8fa;
}

.detail-layout.docs-workspace {
  grid-template-columns: 270px minmax(0, 1fr) 250px;
  gap: 0;
  padding-top: 0;
  background: #f7f8fa;
}

.docs-sidebar {
  position: sticky;
  top: 68px;
  align-self: start;
  height: calc(100vh - 68px);
  overflow-y: auto;
  padding: 28px 24px 48px 0;
  border-right: 1px solid var(--line);
  background: #f7f8fa;
}

.docs-sidebar-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 42px;
  margin-bottom: 12px;
}

.docs-sidebar-heading a {
  font-size: 18px;
  font-weight: 800;
}

.docs-sidebar-heading button {
  display: none;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--ink);
  font: inherit;
  background: var(--white);
}

.docs-sidebar-tree {
  display: grid;
  gap: 8px;
}

.docs-sidebar details {
  border-bottom: 1px solid #eaecf0;
  padding-bottom: 8px;
}

.docs-sidebar summary {
  padding: 10px 4px;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
}

.docs-sidebar details a {
  display: block;
  margin: 2px 0;
  padding: 9px 12px;
  border-radius: 7px;
  color: #475467;
  font-size: 14px;
  line-height: 1.45;
}

.docs-sidebar details a:hover,
.docs-sidebar details a.is-current {
  color: var(--blue);
  background: #eaf2ff;
}

.docs-sidebar details a.is-current {
  font-weight: 800;
}

.docs-workspace .article-body {
  padding: 54px clamp(30px, 4vw, 72px) 80px;
  background: var(--white);
}

.docs-workspace .side-panel {
  top: 96px;
  margin: 36px 0 0;
  padding: 24px 0 24px 24px;
  border: 0;
  border-left: 1px solid var(--line);
  background: transparent;
}

.docs-article-toc {
  display: grid;
  gap: 4px;
  margin-bottom: 28px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.docs-article-toc strong {
  margin-bottom: 8px;
}

.docs-article-toc a {
  padding: 6px 0 6px 12px;
  border-left: 2px solid #d0d5dd;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.docs-article-toc a:hover {
  border-left-color: var(--blue);
  color: var(--blue);
}

.tutorial-visual {
  margin: 28px 0 34px;
  overflow: hidden;
  border: 1px solid #dbe3ef;
  border-radius: 12px;
  background: #f5f8fc;
}

.tutorial-visual figcaption {
  padding: 16px 20px;
  border-top: 1px solid #dbe3ef;
  color: #475467;
  font-size: 14px;
  line-height: 1.7;
  background: var(--white);
}

.tutorial-window {
  padding: 0 24px 26px;
}

.tutorial-window-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  min-height: 48px;
  color: #667085;
  font-size: 13px;
}

.tutorial-window-bar i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #cbd5e1;
}

.tutorial-window-bar span {
  margin-left: 7px;
}

.subject-choice-preview {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.template-choice-preview {
  padding: 26px;
}

.subject-choice-preview > div {
  position: relative;
  display: grid;
  gap: 9px;
  min-height: 132px;
  padding: 20px;
  border: 1px solid #d6deea;
  border-radius: 10px;
  background: var(--white);
}

.subject-choice-preview > div.is-recommended {
  border: 2px solid var(--blue);
  box-shadow: 0 8px 22px rgba(23, 105, 224, 0.1);
}

.subject-choice-preview b {
  font-size: 16px;
}

.subject-choice-preview span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.subject-choice-preview em {
  width: fit-content;
  align-self: end;
  padding: 4px 8px;
  border-radius: 99px;
  color: var(--blue);
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
  background: #eaf2ff;
}

.registration-flow-preview {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  padding: 34px 26px;
}

.registration-flow-preview span {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 10px;
  text-align: center;
}

.registration-flow-preview span:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 18px;
  left: calc(50% + 25px);
  width: calc(100% - 50px);
  height: 2px;
  background: #cbd5e1;
}

.registration-flow-preview b {
  z-index: 1;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 2px solid #aab7c8;
  border-radius: 50%;
  color: #667085;
  background: var(--white);
}

.registration-flow-preview .is-done b {
  border-color: var(--blue);
  color: var(--white);
  background: var(--blue);
}

.registration-flow-preview em {
  color: #344054;
  font-size: 13px;
  font-style: normal;
  font-weight: 700;
}

.settings-preview {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 26px;
}

.settings-preview > div {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 86px;
  padding: 16px;
  border: 1px solid #dbe3ef;
  border-radius: 10px;
  background: var(--white);
}

.settings-preview > div > span {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 50%;
  color: var(--white);
  font-weight: 800;
  background: var(--green);
}

.settings-preview p {
  display: grid;
  gap: 5px;
}

.settings-preview small {
  color: var(--muted);
}

.docs-home-workspace .help-search-panel {
  min-width: 0;
  padding: 48px clamp(28px, 4vw, 64px) 80px;
  background: var(--white);
}

.docs-home .help-card-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.docs-home .help-card-grid article {
  min-height: 220px;
  border-radius: 10px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.docs-home .help-card-grid article:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 36px rgba(21, 32, 51, 0.09);
}

.docs-home > main > .help-layout {
  display: none;
}

.docs-special-workspace > .materials-page,
.docs-special-workspace > .launch-check {
  min-width: 0;
  padding: 48px clamp(28px, 4vw, 64px) 80px;
  background: var(--white);
}

@media (max-width: 1180px) {
  .docs-page .site-header nav,
  .docs-home .site-header nav,
  .docs-header-guide {
    display: none;
  }

  .docs-header-search {
    width: min(360px, 48vw);
  }

  .detail-layout.docs-workspace {
    grid-template-columns: 240px minmax(0, 1fr);
  }

  .docs-workspace .side-panel {
    position: static;
    grid-column: 2;
    margin: 0;
    padding: 0 40px 60px;
    border-left: 0;
    background: var(--white);
  }
}

@media (max-width: 780px) {
  .docs-page .site-header,
  .docs-home .site-header {
    position: sticky;
    flex-wrap: nowrap;
    min-height: 62px;
    padding: 0 16px;
  }

  .docs-page .brand span:last-child,
  .docs-home .brand span:last-child {
    display: none;
  }

  .docs-header-search {
    width: auto;
    flex: 1;
  }

  .docs-page .page-hero,
  .docs-home .page-hero {
    padding: 40px 22px 36px;
  }

  .docs-workspace,
  .detail-layout.docs-workspace,
  .docs-home-workspace,
  .docs-special-workspace {
    display: block;
    padding: 0;
  }

  .docs-sidebar {
    position: sticky;
    top: 62px;
    z-index: 10;
    height: auto;
    padding: 10px 20px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .docs-sidebar-heading {
    min-height: 40px;
    margin: 0;
  }

  .docs-sidebar-heading button {
    display: inline-flex;
    align-items: center;
  }

  .docs-sidebar-tree {
    display: none;
    max-height: 60vh;
    overflow-y: auto;
    padding-top: 10px;
  }

  .docs-sidebar.is-open .docs-sidebar-tree {
    display: grid;
  }

  .docs-workspace .article-body,
  .docs-home-workspace .help-search-panel,
  .docs-special-workspace > .materials-page,
  .docs-special-workspace > .launch-check {
    padding: 36px 22px 60px;
  }

  .docs-workspace .side-panel {
    padding: 0 22px 60px;
  }

  .docs-home .help-card-grid {
    grid-template-columns: 1fr;
  }

  .subject-choice-preview,
  .settings-preview {
    grid-template-columns: 1fr;
  }

  .registration-flow-preview {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .registration-flow-preview span {
    grid-template-columns: 42px 1fr;
    justify-items: start;
    align-items: center;
    text-align: left;
  }

  .registration-flow-preview span::after {
    display: none;
  }
}