:root {
  color-scheme: light;
  --ink: #10244f;
  --ink-soft: #526686;
  --blue: #2469e8;
  --blue-deep: #1456c4;
  --line: #d9e5f4;
  --surface: #ffffff;
  --wash: #f5f9ff;
  --wash-blue: #eaf3ff;
  --radius: 24px;
  font-family:
    "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  color: var(--ink);
  background: var(--wash);
  font-size: 16px;
  line-height: 1.7;
}
img {
  display: block;
  max-width: 100%;
}
a {
  color: inherit;
  text-decoration: none;
}
a:hover {
  color: var(--blue-deep);
}
button,
input,
summary {
  font: inherit;
}
summary {
  cursor: pointer;
}
:focus-visible {
  outline: 3px solid #78a9ff;
  outline-offset: 4px;
}
.page-width {
  width: min(100% - 48px, 1240px);
  margin-inline: auto;
}
.skip-link {
  position: absolute;
  z-index: 100;
  left: 12px;
  top: -80px;
  padding: 10px 16px;
  background: #fff;
  border: 1px solid var(--blue);
  border-radius: 8px;
}
.skip-link:focus {
  top: 12px;
}
.site-header {
  position: relative;
  z-index: 30;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  width: min(100% - 48px, 1240px);
  min-height: 78px;
  margin: auto;
  display: flex;
  align-items: center;
  gap: 42px;
}
.wordmark {
  flex: none;
  color: var(--ink);
  font-size: 27px;
  font-weight: 850;
  letter-spacing: -0.065em;
  line-height: 1;
}
.wordmark span {
  font-weight: 700;
}
.wordmark b {
  color: var(--blue);
}
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 78px;
  margin-left: 16px;
  white-space: nowrap;
}
.desktop-nav > a,
.nav-popover > summary {
  height: 78px;
  display: inline-flex;
  align-items: center;
  border: 0;
  font-size: 14px;
  font-weight: 700;
  color: #284064;
}
.desktop-nav > a[aria-current="page"] {
  color: var(--blue-deep);
  border-bottom: 2px solid var(--blue);
}
.nav-popover.nav-active > summary {
  color: var(--blue-deep);
  border-bottom: 2px solid var(--blue);
}
.desktop-nav > a:hover,
.nav-popover > summary:hover,
.nav-popover[open] > summary {
  color: var(--blue);
}
.nav-popover > summary {
  list-style-position: inside;
}
.nav-popover {
  height: 78px;
}
.nav-popover::details-content {
  overflow: visible;
}
.mega-menu {
  position: absolute;
  left: 50%;
  top: 72px;
  transform: translateX(-50%);
  width: min(100% - 48px, 980px);
  display: grid;
  grid-template-columns: 1.35fr repeat(3, 1fr);
  gap: 26px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 22px 70px rgba(24, 68, 134, 0.14);
  white-space: normal;
}
.mega-menu-tools {
  grid-template-columns: 1.35fr repeat(2, 1fr);
  max-width: 780px;
}
.mega-intro {
  display: flex;
  flex-direction: column;
  gap: 11px;
  padding: 20px;
  border-radius: 14px;
  background: var(--wash-blue);
}
.mega-intro span,
.mega-column strong {
  font-size: 12px;
  letter-spacing: 0.08em;
  font-weight: 800;
  color: var(--blue-deep);
}
.mega-intro strong {
  font-size: 17px;
  line-height: 1.45;
}
.mega-intro a {
  margin-top: auto;
  font-size: 13px;
  color: var(--blue-deep);
  font-weight: 800;
}
.mega-column {
  display: flex;
  flex-direction: column;
  gap: 11px;
  padding-top: 12px;
}
.mega-column a {
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-soft);
}
.mega-column a:hover {
  color: var(--blue-deep);
}
.header-cta {
  margin-left: auto;
  padding: 10px 19px;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
  box-shadow: 0 8px 18px rgba(50, 120, 246, 0.17);
}
.header-cta:hover {
  background: var(--blue-deep);
  color: #fff;
}
.mobile-menu {
  display: none;
}
.eyebrow,
.section-index,
.card-label {
  color: #5c7497;
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.16em;
  line-height: 1.5;
}
.home-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.91fr) minmax(0, 1.09fr);
  align-items: center;
  gap: 44px;
  padding-top: 44px;
  padding-bottom: 44px;
}
.hero-copy {
  min-width: 0;
}
.hero-copy .eyebrow {
  margin: 0 0 22px;
}
h1,
h2,
h3,
p {
  margin-top: 0;
}
h1 {
  font-size: clamp(36px, 3.35vw, 48px);
  letter-spacing: -0.075em;
  line-height: 1.28;
  font-weight: 850;
}
h1 em {
  color: var(--blue);
  font-style: normal;
}
.hero-lede,
.inner-lede {
  max-width: 600px;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.95;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}
.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 11px 21px;
  border-radius: 999px;
  font-size: 14px;
  line-height: 1.4;
  font-weight: 800;
  transition:
    transform 0.2s ease,
    background 0.2s ease,
    box-shadow 0.2s ease;
}
.button:hover {
  transform: translateY(-2px);
}
.button-primary {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 10px 24px rgba(50, 120, 246, 0.24);
}
.button-primary:hover {
  color: #fff;
  background: var(--blue-deep);
}
.button-quiet {
  color: var(--blue-deep);
  background: #fff;
  border: 1px solid #c8dbfb;
}
.button-quiet:hover {
  background: var(--wash-blue);
}
.maker-id {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 45px;
}
.maker-id img {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #fff;
}
.maker-id div {
  display: grid;
  gap: 1px;
}
.maker-id strong {
  font-size: 16px;
}
.maker-id span {
  color: var(--ink-soft);
  font-size: 12px;
}
.hero-gallery {
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.hero-feature {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid #dce9fa;
  border-radius: 26px;
  background: #e8f3ff;
  box-shadow: 0 14px 40px rgba(32, 95, 165, 0.09);
  isolation: isolate;
}
.hero-feature:hover {
  border-color: #8ab7ff;
  box-shadow: 0 18px 48px rgba(32, 95, 165, 0.16);
}
.hero-feature img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.hero-feature:hover img {
  transform: scale(1.03);
}
.hero-feature-main {
  grid-column: 1 / -1;
  height: 330px;
}
.hero-feature-main img {
  object-position: 50% 54%;
}
.hero-feature-small {
  height: 230px;
}
.hero-feature-small img {
  object-position: 50% 58%;
}
.feature-copy {
  position: absolute;
  top: 18px;
  left: 18px;
  max-width: calc(100% - 36px);
  display: grid;
  gap: 2px;
  padding: 10px 14px;
  border: 1px solid rgba(220, 233, 250, 0.8);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--ink);
}
.feature-copy small {
  color: var(--blue-deep);
  font-size: 10px;
  font-weight: 850;
}
.feature-copy strong {
  font-size: 18px;
  line-height: 1.35;
}
.feature-copy > span {
  font-size: 11px;
  color: var(--ink-soft);
}
.hero-feature-main .feature-copy {
  top: 24px;
  left: 24px;
  padding: 16px 18px;
}
.hero-feature-main .feature-copy strong {
  font-size: 26px;
}
.quota-feature .feature-copy {
  background: rgba(255, 255, 255, 0.94);
}
.discover {
  padding: 37px 48px 34px;
  border: 1px solid #dbeafa;
  border-radius: 28px;
  background: #eaf3ff;
  text-align: center;
  box-shadow: 0 12px 40px rgba(40, 88, 160, 0.06);
}
.discover .eyebrow {
  margin-bottom: 8px;
}
.discover h2 {
  margin-bottom: 6px;
  font-size: clamp(24px, 2.5vw, 34px);
  letter-spacing: -0.045em;
  line-height: 1.4;
}
.discover p:not(.eyebrow) {
  color: var(--ink-soft);
  font-size: 14px;
}
.quick-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 24px;
}
.quick-links a,
.category-nav a {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  padding: 5px 16px;
  border: 1px solid #d4e2f4;
  border-radius: 999px;
  color: #3d567b;
  background: #fff;
  font-size: 13px;
  font-weight: 700;
}
.quick-links a:hover,
.category-nav a:hover {
  color: var(--blue-deep);
  border-color: #86b5ff;
}
.entry-sections {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding-top: 18px;
  padding-bottom: 86px;
}
.entry-panel {
  min-width: 0;
  padding: 24px;
  border: 1px solid #e0eaf7;
  border-radius: var(--radius);
  background: #fff;
}
.panel-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 10px;
}
.panel-head h2 {
  margin: 3px 0 0;
  font-size: 22px;
  letter-spacing: -0.045em;
}
.panel-head > a {
  color: var(--blue-deep);
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}
.entry-panel > p {
  margin: 11px 0 20px;
  color: var(--ink-soft);
  font-size: 12px;
}
.entry-row {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 88px;
  padding: 9px 0;
  border-top: 1px solid #edf2fa;
}
.entry-row img {
  width: 73px;
  height: 62px;
  object-fit: cover;
  flex: none;
  border-radius: 10px;
  background: var(--wash-blue);
}
.entry-row span {
  display: grid;
  min-width: 0;
}
.entry-row strong {
  font-size: 13px;
  overflow-wrap: anywhere;
}
.entry-row small {
  font-size: 11px;
  color: var(--ink-soft);
}
.mountain-section {
  position: relative;
  height: 520px;
  overflow: hidden;
  background: #b9d2f0;
}
.mountain-section > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 52%;
}
.mountain-copy {
  position: absolute;
  inset: 0;
  padding-top: 63px;
  color: #112950;
}
.mountain-copy .eyebrow {
  color: #3d6b9d;
}
.mountain-copy h2 {
  max-width: 600px;
  margin: 10px 0 18px;
  font-size: clamp(30px, 3.4vw, 46px);
  letter-spacing: -0.05em;
  line-height: 1.3;
}
.mountain-copy p:not(.eyebrow) {
  color: #25466f;
}
.mountain-copy a {
  color: #205fd8;
  font-weight: 850;
}
.site-footer {
  background: #0e2249;
  color: #c6d8f0;
}
.footer-inner {
  width: min(100% - 48px, 1240px);
  margin: auto;
  display: grid;
  grid-template-columns: 1.3fr 1fr auto;
  gap: 30px;
  padding: 38px 0 42px;
}
.footer-brand {
  color: #fff;
  font-size: 24px;
}
.footer-inner p {
  margin: 10px 0 0;
  color: #a9bfdb;
  font-size: 12px;
}
.footer-inner nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  align-content: start;
  font-size: 13px;
}
.footer-inner a:hover {
  color: #fff;
}
.footer-inner small {
  align-self: start;
  font-size: 12px;
  white-space: nowrap;
}
.inner-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.8fr);
  align-items: center;
  gap: 64px;
  padding-top: 74px;
  padding-bottom: 76px;
}
.inner-hero .eyebrow {
  margin-bottom: 16px;
}
.inner-hero h1 {
  max-width: 800px;
  font-size: clamp(36px, 4vw, 56px);
}
.inner-lede {
  margin-bottom: 0;
}
.about-portrait {
  justify-self: center;
  width: min(70%, 320px);
  aspect-ratio: 1;
  object-fit: cover;
  border: 14px solid #fff;
  border-radius: 50%;
  box-shadow: 0 25px 70px rgba(49, 95, 160, 0.16);
}
.listing-art {
  width: 100%;
  height: 350px;
  object-fit: cover;
  border-radius: 28px;
  border: 1px solid #dce9fa;
}
.experience-hero {
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.8fr);
}
.experience-hero h1 {
  max-width: 850px;
}
.experience-art {
  width: 100%;
  height: 350px;
  object-fit: cover;
  object-position: 75% 50%;
  border: 1px solid #dce9fa;
  border-radius: 28px;
}
.category-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding-bottom: 12px;
}
.catalog-section,
.content-section {
  padding-top: 68px;
  padding-bottom: 30px;
  scroll-margin-top: 28px;
}
.section-heading {
  margin-bottom: 24px;
}
.section-heading .eyebrow {
  margin-bottom: 6px;
}
.section-heading h2 {
  margin-bottom: 5px;
  font-size: clamp(27px, 2.7vw, 37px);
  letter-spacing: -0.05em;
  line-height: 1.35;
}
.section-heading p:not(.eyebrow) {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}
.catalog-grid,
.simple-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.catalog-card,
.simple-grid article {
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: 30px;
  border: 1px solid #dfe9f7;
  border-radius: 22px;
  background: #fff;
}
.catalog-card {
  min-height: 260px;
}
.catalog-card h3,
.simple-grid h3 {
  margin: 14px 0 10px;
  font-size: 23px;
  letter-spacing: -0.045em;
  line-height: 1.4;
}
.catalog-card p,
.simple-grid p {
  color: var(--ink-soft);
  font-size: 14px;
}
.catalog-card a {
  margin-top: auto;
  color: var(--blue-deep);
  font-size: 14px;
  font-weight: 850;
}
.catalog-card a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}
.simple-grid article {
  min-height: 220px;
}
.simple-grid .section-index {
  color: var(--blue);
}
.callout-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  margin-top: 68px;
  margin-bottom: 88px;
  padding: 36px 44px;
  border-radius: 26px;
  background: #e9f2ff;
}
.callout-panel h2 {
  margin: 5px 0;
  font-size: 30px;
  letter-spacing: -0.045em;
}
.callout-panel p:last-child {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}
.tool-spotlight,
.project-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 35px;
  align-items: center;
  padding: 26px;
  border: 1px solid #dfe9f7;
  border-radius: 26px;
  background: #fff;
}
.tool-spotlight > div,
.project-feature > div {
  padding: 15px;
}
.tool-spotlight h3,
.project-feature h3 {
  margin: 12px 0;
  font-size: clamp(28px, 3vw, 40px);
  letter-spacing: -0.05em;
  line-height: 1.35;
}
.tool-spotlight p,
.project-feature p {
  max-width: 480px;
  color: var(--ink-soft);
  font-size: 15px;
}
.tool-spotlight img,
.project-feature img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  border-radius: 18px;
}
.image-card {
  padding: 0;
  overflow: hidden;
}
.image-card > img {
  width: 100%;
  height: 230px;
  object-fit: cover;
}
.image-card > div:last-child {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 25px;
}
.image-card h3 {
  margin-top: 8px;
}
.timeline {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.timeline li {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 30px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}
.timeline time {
  color: var(--blue-deep);
  font-weight: 850;
}
.timeline h3 {
  margin-bottom: 7px;
  font-size: 22px;
  letter-spacing: -0.035em;
}
.timeline p {
  max-width: 700px;
  color: var(--ink-soft);
  font-size: 14px;
}
@media (max-width: 1050px) {
  .desktop-nav {
    gap: 17px;
    margin-left: 0;
  }
  .header-inner {
    gap: 20px;
  }
  .home-hero {
    gap: 26px;
  }
  .hero-feature-main {
    height: 330px;
  }
  .hero-feature-small {
    height: 220px;
  }
  .entry-sections {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 760px) {
  .page-width,
  .header-inner,
  .footer-inner {
    width: min(100% - 36px, 1240px);
  }
  .header-inner {
    min-height: 68px;
  }
  .wordmark {
    font-size: 25px;
  }
  .desktop-nav,
  .header-cta {
    display: none;
  }
  .mobile-menu {
    display: block;
    position: relative;
    margin-left: auto;
  }
  .mobile-menu > summary {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 7px 13px;
    border: 1px solid var(--line);
    border-radius: 10px;
    font-size: 13px;
    font-weight: 800;
    list-style: none;
  }
  .mobile-menu > summary::-webkit-details-marker {
    display: none;
  }
  .mobile-menu > nav {
    position: absolute;
    right: 0;
    top: 43px;
    display: flex;
    flex-direction: column;
    width: min(330px, calc(100vw - 36px));
    max-height: min(70vh, 600px);
    overflow: auto;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 20px 45px rgba(22, 66, 133, 0.17);
  }
  .mobile-menu nav a,
  .mobile-menu nav summary {
    display: block;
    padding: 9px 12px;
    color: var(--ink);
    font-size: 14px;
    font-weight: 750;
    border-radius: 9px;
  }
  .mobile-menu nav a:hover,
  .mobile-menu nav summary:hover {
    background: var(--wash-blue);
  }
  .mobile-menu nav details a {
    margin-left: 14px;
    color: var(--ink-soft);
    font-weight: 500;
  }
  .quick-links a,
  .category-nav a {
    min-height: 44px;
  }
  .footer-inner nav a {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
  }
  .home-hero,
  .inner-hero {
    grid-template-columns: 1fr;
    gap: 35px;
    padding-top: 46px;
    padding-bottom: 46px;
  }
  h1 {
    font-size: clamp(36px, 8vw, 54px);
  }
  .hero-lede,
  .inner-lede {
    font-size: 15px;
  }
  .maker-id {
    margin-top: 34px;
  }
  .hero-feature-main {
    height: 330px;
  }
  .hero-feature-small {
    height: 220px;
  }
  .discover {
    padding: 30px 23px;
  }
  .entry-sections {
    grid-template-columns: 1fr;
    padding-bottom: 64px;
  }
  .mountain-section {
    height: 460px;
  }
  .mountain-section > img {
    object-position: 70% 50%;
  }
  .mountain-copy {
    padding-top: 38px;
  }
  .mountain-copy h2 {
    max-width: 420px;
    font-size: 33px;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .about-portrait {
    justify-self: start;
    width: 200px;
  }
  .experience-hero {
    grid-template-columns: 1fr;
  }
  .experience-art {
    height: 260px;
  }
  .listing-art {
    height: 290px;
  }
  .catalog-section,
  .content-section {
    padding-top: 50px;
  }
  .tool-spotlight,
  .project-feature {
    grid-template-columns: 1fr;
  }
  .tool-spotlight img {
    grid-row: 1;
  }
  .callout-panel {
    align-items: start;
    flex-direction: column;
  }
}
@media (max-width: 480px) {
  .page-width,
  .header-inner,
  .footer-inner {
    width: min(100% - 28px, 1240px);
  }
  .home-hero {
    padding-top: 36px;
  }
  .hero-copy .eyebrow {
    margin-bottom: 16px;
  }
  h1 {
    font-size: clamp(29px, 8.2vw, 35px);
  }
  .hero-lede {
    line-height: 1.85;
  }
  .hero-actions {
    gap: 10px;
  }
  .button {
    padding: 10px 17px;
    font-size: 13px;
  }
  .hero-gallery {
    gap: 9px;
  }
  .hero-feature {
    border-radius: 18px;
  }
  .hero-feature-main {
    height: 244px;
  }
  .hero-feature-small {
    height: 164px;
  }
  .feature-copy {
    top: 9px;
    left: 9px;
    max-width: calc(100% - 18px);
    padding: 6px 8px;
    border-radius: 9px;
  }
  .feature-copy small {
    font-size: 8px;
  }
  .feature-copy strong {
    font-size: 12px;
    overflow-wrap: anywhere;
  }
  .feature-copy > span {
    display: none;
  }
  .hero-feature-main .feature-copy {
    top: 12px;
    left: 12px;
    padding: 9px 11px;
  }
  .hero-feature-main .feature-copy strong {
    font-size: 18px;
  }
  .discover h2 {
    font-size: 25px;
  }
  .quick-links {
    justify-content: start;
    gap: 7px;
  }
  .quick-links a {
    font-size: 12px;
    padding-inline: 12px;
  }
  .entry-panel {
    padding: 20px;
  }
  .mountain-section {
    height: 390px;
  }
  .mountain-section > img {
    object-position: 70% 50%;
  }
  .mountain-copy {
    padding-top: 30px;
  }
  .mountain-copy h2 {
    max-width: 280px;
    font-size: 25px;
  }
  .mountain-copy p:not(.eyebrow) {
    max-width: 240px;
    font-size: 12px;
  }
  .inner-hero h1 {
    font-size: 35px;
  }
  .listing-art {
    height: 220px;
  }
  .catalog-card,
  .simple-grid article {
    padding: 23px;
  }
  .callout-panel {
    padding: 25px;
  }
  .callout-panel h2 {
    font-size: 24px;
  }
  .tool-spotlight,
  .project-feature {
    padding: 15px;
    gap: 15px;
  }
  .tool-spotlight img,
  .project-feature img {
    height: 230px;
  }
  .timeline li {
    grid-template-columns: 1fr;
    gap: 7px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .button,
  .hero-feature img {
    transition: none;
  }
}