:root {
  --navy: #0a2342;
  --navy-mid: #123056;
  --blue: #1c6fb8;
  --cyan: #3eb6e8;
  --ink: #182433;
  --muted: #5c6b7d;
  --paper: #f3f6fa;
  --white: #ffffff;
  --line: rgba(10, 35, 66, 0.1);
  --shadow: 0 18px 50px rgba(10, 35, 66, 0.08);
  --serif: "Fraunces", "Times New Roman", serif;
  --sans: "Outfit", system-ui, sans-serif;
  --max: 1120px;
  --header-h: 76px;
}

@font-face {
  font-family: "Outfit";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("../fonts/outfit-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: "Outfit";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("../fonts/outfit-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Fraunces";
  font-style: normal;
  font-weight: 500 600;
  font-display: swap;
  src: url("../fonts/fraunces-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: "Fraunces";
  font-style: normal;
  font-weight: 500 600;
  font-display: swap;
  src: url("../fonts/fraunces-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Noto Serif TC";
  font-style: normal;
  font-weight: 600 700;
  font-display: swap;
  src: url("../fonts/noto-serif-tc.woff2") format("woff2");
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover {
  color: var(--navy);
}

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  color: var(--navy);
}

.brand:hover {
  color: var(--navy);
}

.brand img {
  height: 52px;
  width: auto;
  flex-shrink: 0;
}

.brand-tagline {
  margin: 0;
  padding-left: 14px;
  border-left: 1px solid var(--line);
  color: var(--blue);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav {
  display: flex;
  gap: 4px;
  align-items: center;
}

.nav a {
  color: var(--navy);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 14px;
  border-radius: 999px;
}

.nav a:hover,
.nav a.is-active {
  background: rgba(28, 111, 184, 0.1);
  color: var(--blue);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 2px;
  margin: 6px 8px;
  background: var(--navy);
}

.hero {
  position: relative;
  min-height: min(86vh, 760px);
  display: grid;
  align-items: end;
  color: var(--white);
  overflow: hidden;
  background: var(--navy) center / cover no-repeat;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 78% 18%, rgba(62, 182, 232, 0.28), transparent 32%),
    linear-gradient(180deg, rgba(6, 22, 40, 0.25) 0%, rgba(6, 22, 40, 0.82) 100%);
}

.hero-copy {
  position: relative;
  padding: 0 0 72px;
  max-width: 760px;
}

.kicker {
  display: inline-block;
  margin: 0 0 16px;
  color: var(--cyan);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.page-hero .kicker,
.section-head .kicker {
  color: var(--blue);
}

h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--navy);
}

.hero h1 {
  margin: 0 0 18px;
  color: var(--white);
  font-size: clamp(40px, 7vw, 78px);
}

.lede {
  margin: 0 0 32px;
  max-width: 42rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.15rem;
}

.page-hero {
  padding: 72px 0 36px;
  background:
    radial-gradient(circle at 90% 0%, rgba(62, 182, 232, 0.16), transparent 36%),
    linear-gradient(180deg, #eaf1f8 0%, var(--paper) 100%);
}

.page-hero h1 {
  margin: 0 0 12px;
  font-size: clamp(36px, 5vw, 60px);
}

.page-hero p {
  margin: 0;
  max-width: 40rem;
  color: var(--muted);
}

.page-hero .hero-line {
  max-width: none;
  white-space: nowrap;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.btn-primary {
  background: var(--cyan);
  color: var(--navy);
}

.btn-primary:hover {
  background: #67c8ef;
  color: var(--navy);
}

.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: var(--white);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
}

.section {
  padding: 80px 0;
}

.section-head {
  display: grid;
  gap: 10px;
  margin-bottom: 36px;
}

.section-head p {
  margin: 0;
  max-width: 40rem;
  color: var(--muted);
}

.grid-3,
.grid-2 {
  display: grid;
  gap: 20px;
}

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

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

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 10px;
  font-size: 28px;
}

.card p,
.card li {
  color: var(--muted);
}

.stat {
  font-family: var(--serif);
  font-size: clamp(28px, 3vw, 38px);
  color: var(--blue);
}

.logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.logo-grid a {
  display: block;
  color: inherit;
}

.logo-grid a:hover img {
  border-color: var(--blue);
}

.logo-grid img {
  width: 100%;
  height: 92px;
  object-fit: contain;
  object-position: center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
}

.logo-grid img.logo-on-dark {
  background: #111;
  border-color: #111;
}

.logo-grid img.logo-millscope {
  background: #5c5c5c;
  border-color: #5c5c5c;
  padding: 18px;
}

.logo-grid img.logo-shld {
  padding: 20px 16px;
}

.year-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0 8px;
}

.year-tabs a {
  min-width: 88px;
  padding: 10px 16px;
  border-radius: 999px;
  text-align: center;
  color: var(--navy);
  background: var(--white);
  border: 1px solid var(--line);
  font-weight: 600;
}

.year-tabs a.is-active {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

.essay {
  max-width: 760px;
}

.essay h2 {
  margin: 40px 0 16px;
  font-size: 32px;
}

.essay h3 {
  margin: 28px 0 10px;
  font-size: 22px;
}

.essay p,
.essay li {
  color: #314155;
}

.essay ol {
  margin: 0 0 8px;
  padding-left: 1.2rem;
  font-weight: 600;
  color: var(--navy);
}

.essay ul {
  margin: 0 0 22px;
  padding-left: 1.2rem;
}

.essay ul ul {
  margin: 8px 0 12px;
}

.essay li + li {
  margin-top: 6px;
}

.site-footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.82);
  padding: 56px 0 28px;
}

.site-footer a {
  color: var(--white);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: stretch;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.footer-brand .kicker {
  margin-bottom: 0;
}

.footer-names {
  margin-top: auto;
}

.footer-brand h2 {
  margin: 0;
  color: var(--white);
  font-family: var(--sans);
  font-size: clamp(13px, 1.7vw, 21px);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.15;
  text-transform: uppercase;
  white-space: nowrap;
}

.footer-zh {
  margin: 8px 0 0;
  color: var(--white);
  font-family: "Noto Serif TC", "Songti TC", "STSong", serif;
  font-size: clamp(16px, 1.7vw, 22px);
  font-weight: 600;
  letter-spacing: 0.18em;
  line-height: 1.4;
}

.footer-meta {
  display: grid;
  gap: 8px;
  color: rgba(255, 255, 255, 0.72);
}

.footer-meta a {
  color: var(--cyan);
}

.footer-meta a[href^="http"] {
  color: inherit;
}

.footer-meta a[href^="http"]:hover {
  color: var(--cyan);
}

.copyright {
  padding-top: 20px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 860px) {
  .grid-3,
  .grid-2,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .menu-toggle {
    display: block;
  }

  .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    padding: 12px;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
  }

  .nav.is-open {
    display: flex;
  }

  .brand-tagline {
    letter-spacing: 0.08em;
  }

  .footer-brand h2 {
    font-size: clamp(11px, 3.2vw, 18px);
  }

  .page-hero .hero-line {
    white-space: normal;
  }
}

@media (max-width: 560px) {
  .brand-tagline {
    white-space: normal;
    max-width: 16em;
    letter-spacing: 0.08em;
  }
}