:root {
  color-scheme: light;
  --page: #f5f6f9;
  --surface: #fff;
  --ink: #181a1e;
  --muted: #626e82;
  --line: #dcdee6;
  --blue: #3453ff;
  --dark: #1e1f24;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  font-synthesis: none;
  background: var(--page);
  color: var(--ink);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }
a { color: inherit; text-decoration: none; -webkit-tap-highlight-color: transparent; }
p, h1, h2 { margin: 0; }
::selection { background: #dce2ff; color: var(--ink); }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; }
.icon-library { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { display: block; width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.skip-link { position: fixed; top: 10px; left: 16px; z-index: 10; padding: 12px 18px; border-radius: 8px; background: var(--dark); color: white; transform: translateY(-160%); }
.skip-link:focus { transform: none; }
.page-shell { width: min(1320px, calc(100% - 40px)); margin-inline: auto; }
.site-header { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 11px; background: var(--blue); color: white; }
.brand-mark svg { width: 31px; height: 31px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.brand-name { font-size: 23px; font-weight: 850; letter-spacing: -.055em; }
.brand-english { font-family: Arial, sans-serif; font-size: 12px; font-weight: 800; letter-spacing: .09em; }
.brand-english sup { font-size: 9px; vertical-align: 2px; letter-spacing: 0; }
.header-actions { display: flex; align-items: center; gap: 60px; }
.header-actions p { display: none; font-size: 13px; color: var(--muted); }
.explore-link { display: flex; align-items: center; justify-content: space-between; gap: 14px; min-height: 44px; padding: 0 14px; border: 1px solid #cfd3dd; border-radius: 40px; font-size: 12px; font-weight: 650; transition: background 180ms ease, border-color 180ms ease; }
.explore-link:hover { background: #fff; border-color: #aab6ed; }
.explore-link .icon { width: 18px; height: 18px; }

.intro { padding: 34px 0 30px; display: flex; justify-content: space-between; gap: 25px; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin-bottom: 24px; font-family: Arial, sans-serif; font-size: 10px; line-height: 1.4; font-weight: 650; letter-spacing: .13em; }
.eyebrow > span { width: 20px; height: 3px; background: var(--blue); flex-shrink: 0; }
h1 { font-size: clamp(43px, 12.2vw, 64px); line-height: 1.27; font-weight: 900; letter-spacing: -.055em; }
h1 > span { color: var(--blue); }
.intro-aside { display: none; }

.entries { scroll-margin-top: 24px; }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 18px; }
.section-title { display: flex; align-items: center; gap: 10px; }
h2 { font-size: 19px; line-height: 1.5; font-weight: 750; }
.entry-count { display: inline-grid; place-items: center; min-width: 27px; height: 22px; border: 1px solid #d5d9e4; border-radius: 4px; font-family: Georgia, serif; font-size: 12px; color: var(--muted); }
.section-heading > p { display: none; align-items: center; gap: 20px; color: var(--muted); font-size: 13px; }
.section-heading > p .icon { width: 17px; height: 17px; color: var(--ink); transform: rotate(180deg); }
.entry-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.entry-card:first-child { grid-column: 1 / -1; }
.entry-card { position: relative; min-width: 0; min-height: 177px; display: flex; flex-direction: column; justify-content: space-between; padding: 19px 17px; overflow: hidden; border: 1px solid #dfe2ec; border-radius: 16px; background: var(--surface); cursor: pointer; isolation: isolate; transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease; }
.card-top { display: flex; align-items: center; justify-content: space-between; position: relative; z-index: 1; gap: 10px; }
.card-icon { width: 25px; height: 25px; color: var(--blue); }
.card-number { font-family: "SFMono-Regular", Consolas, monospace; font-size: 11px; letter-spacing: .055em; color: var(--muted); }
.card-bottom { position: relative; z-index: 1; display: flex; align-items: flex-end; justify-content: space-between; gap: 4px; }
.card-copy { display: block; min-width: 0; }
.card-caption { display: block; margin-bottom: 8px; font-family: Arial, sans-serif; font-size: 8px; font-weight: 500; line-height: 1.5; letter-spacing: .065em; color: var(--muted); }
.card-name { display: block; font-size: 22px; line-height: 1.22; font-weight: 800; letter-spacing: -.025em; white-space: nowrap; }
.card-arrow { width: 29px; height: 29px; display: grid; place-items: center; border: 1px solid #d9deea; border-radius: 50%; flex-shrink: 0; transition: background 200ms ease, transform 200ms ease; }
.card-arrow .icon { width: 17px; height: 17px; }
.card-dark { background: var(--dark); border-color: var(--dark); color: white; }
.card-blue { background: var(--blue); border-color: var(--blue); color: white; }
.card-dark .card-icon, .card-blue .card-icon { color: white; }
.card-dark .card-number, .card-blue .card-number, .card-dark .card-caption, .card-blue .card-caption { color: #f2f4ff; }
.card-dark .card-arrow, .card-blue .card-arrow { border-color: rgb(255 255 255 / .35); }
.card-watermark { pointer-events: none; position: absolute; right: -16px; top: 55px; font-family: Arial, sans-serif; font-weight: 900; font-size: 46px; letter-spacing: -.04em; line-height: 1; color: rgb(255 255 255 / .035); transform: rotate(-12deg); z-index: 0; }
.card-blue .card-watermark { color: rgb(255 255 255 / .045); }
.card-dark .card-watermark { font-size: 84px; top: 47px; right: 12px; }
.card-dark .card-name { font-size: 28px; }
@media (hover: hover) {
  .entry-card:hover { transform: translateY(-4px); box-shadow: 0 14px 30px -20px rgb(28 38 83 / .38); border-color: #b6c0f0; }
  .entry-card:hover .card-arrow { transform: rotate(45deg); background: #edf0ff; }
  .card-dark:hover .card-arrow, .card-blue:hover .card-arrow { background: rgb(255 255 255 / .12); }
}
.entry-card:active { transform: translateY(-1px); }
.closing-note { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 31px 0; }
.closing-note p { display: flex; align-items: center; gap: 11px; font-size: 12px; color: var(--muted); }
.closing-note .icon { width: 20px; height: 20px; color: var(--blue); stroke-width: 1; }
.closing-note > span { display: none; font-family: Arial, sans-serif; font-size: 10px; letter-spacing: .12em; color: var(--muted); }
.site-footer { border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr auto; align-items: start; gap: 16px; padding: 23px 0 32px; font-size: 11px; line-height: 1.7; color: var(--muted); }
.preview-label { display: block; margin-top: 7px; font-size: 10px; }
.footer-motto { display: none; }
.site-footer > a { display: flex; align-items: center; justify-content: end; gap: 4px; min-height: 44px; margin-top: -12px; }
.site-footer > a:hover { color: var(--blue); }
.notice { position: fixed; left: 50%; bottom: 26px; z-index: 15; width: max-content; max-width: calc(100% - 32px); padding: 14px 21px; border: 1px solid #383d4d; border-radius: 12px; box-shadow: 0 10px 35px rgb(0 0 0 / .13); background: var(--dark); color: white; font-size: 13px; line-height: 1.6; text-align: center; transform: translate(-50%, 12px); opacity: 0; pointer-events: none; transition: opacity 180ms ease, transform 180ms ease; }
.notice.is-visible { transform: translate(-50%, 0); opacity: 1; }

@media (max-width: 359px) {
  .page-shell { width: calc(100% - 28px); }
  .brand { gap: 7px; }
  .brand-mark { width: 32px; height: 32px; border-radius: 9px; }
  .brand-english { font-size: 10px; }
  .explore-link { gap: 8px; padding-inline: 11px; }
  .entry-grid { gap: 10px; }
  .entry-card { padding: 16px 12px; }
  .card-name { font-size: 20px; }
  .card-arrow { width: 27px; height: 27px; }
  .card-caption { font-size: 7px; letter-spacing: .025em; }
}
@media (min-width: 600px) {
  .page-shell { width: min(1320px, calc(100% - 64px)); }
  .brand-mark { width: 40px; height: 40px; }
  .brand-name { font-size: 26px; }
  .brand-english { font-size: 13px; }
  .explore-link { min-width: 136px; height: 50px; padding-inline: 17px; font-size: 13px; }
  .intro { padding: 46px 0 42px; align-items: center; }
  .eyebrow { font-size: 11px; }
  h1 { font-size: 65px; }
  .intro-aside { display: block; flex-shrink: 0; padding-right: 10px; }
  .idea-symbol { display: flex; align-items: center; gap: 13px; margin-bottom: 17px; font-family: Arial, sans-serif; font-size: 11px; font-weight: 500; }
  .orbit { width: 90px; height: 90px; position: relative; display: grid; place-items: center; color: var(--blue); }
  .orbit::before, .orbit::after { content: ""; position: absolute; inset: 12px -3px; border: 1px solid #b2baff; border-radius: 50%; transform: rotate(-30deg); }
  .orbit::after { transform: rotate(39deg); }
  .orbit .icon { width: 54px; height: 54px; stroke-width: 1.4; }
  .intro-aside > p { color: var(--muted); font-size: 14px; line-height: 1.85; }
  .section-heading > p { display: flex; font-size: 12px; }
  .entry-card { min-height: 208px; padding: 26px 24px; }
  .card-icon { width: 27px; height: 27px; }
  .card-name { font-size: 26px; }
  .card-caption { font-size: 10px; }
  .card-arrow { width: 38px; height: 38px; }
  .card-arrow .icon { width: 21px; height: 21px; }
  .card-watermark { font-size: 75px; top: 74px; }
  .closing-note { padding-block: 36px; }
  .closing-note > span { display: block; }
  .site-footer { grid-template-columns: 1fr 1fr 1fr; font-size: 12px; padding-block: 24px 48px; }
  .footer-motto { display: block; text-align: center; }
}
@media (min-width: 1000px) {
  .page-shell { width: min(1320px, calc(100% - 96px)); }
  .site-header { min-height: 88px; }
  .header-actions p { display: block; }
  .intro { padding: 44px 0 38px; }
  .eyebrow { font-size: 12px; letter-spacing: .13em; margin-bottom: 22px; }
  .eyebrow > span { width: 24px; }
  h1 { font-size: 64px; line-height: 1.2; }
  .intro-aside { align-self: flex-start; padding-right: 78px; padding-top: 4px; }
  .idea-symbol { font-size: 12px; gap: 13px; }
  .orbit { width: 108px; height: 94px; }
  .orbit::before, .orbit::after { inset: 12px -2px; }
  .orbit .icon { width: 60px; height: 60px; }
  .intro-aside > p { font-size: 16px; }
  .section-heading { margin-bottom: 18px; }
  .section-heading > p { font-size: 13px; }
  h2 { font-size: 20px; }
  .entry-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; }
  .entry-card { grid-column: span 2; height: 174px; min-height: 174px; padding: 25px 27px; }
  .entry-card:nth-child(-n+2) { grid-column: span 3; height: 224px; min-height: 224px; padding: 28px 30px; }
  .entry-card:nth-child(-n+2) .card-name { font-size: 30px; }
  .card-top { padding-inline: 4px 0; }
  .card-number { font-size: 12px; }
  .card-watermark, .card-dark .card-watermark { font-size: 104px; right: 12px; top: 65px; }
  .card-caption { margin-bottom: 10px; font-weight: 600; letter-spacing: .09em; }
  .closing-note { padding-block: 38px; }
  .closing-note p { font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}