@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;600;700;800&family=Noto+Serif+TC:wght@600;700;900&display=swap');

:root {
  --ink: #0b1d2a;
  --ink-2: #132e40;
  --paper: #f3eee5;
  --paper-2: #faf7f1;
  --coral: #ff6534;
  --blue: #3153d8;
  --mint: #a8d9cf;
  --muted: #61707a;
  --line: rgba(11, 29, 42, 0.16);
  --max: 1200px;
  --sans: 'Noto Sans TC', sans-serif;
  --serif: 'Noto Serif TC', serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ink); color: white; font-family: var(--sans); line-height: 1.65; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, select { font: inherit; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 99; padding: 12px 18px; background: white; color: var(--ink); }
.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 84px;
  padding: 0 max(20px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(255,255,255,.12);
  background: rgba(11,29,42,.95);
  backdrop-filter: blur(16px);
}
.brand { display: flex; align-items: center; gap: 10px; letter-spacing: .15em; }
.brand-mark { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; background: var(--coral); color: var(--ink); font-size: 22px; font-weight: 900; }
.brand b, .brand small { display: block; }
.brand small { color: rgba(255,255,255,.65); font-size: 8px; }
.site-header nav { display: flex; align-items: stretch; gap: 28px; height: 100%; }
.site-header nav a { display: flex; flex-direction: column; justify-content: center; border-bottom: 3px solid transparent; color: #7589e9; font-size: 9px; font-weight: 800; letter-spacing: .13em; }
.site-header nav small { color: white; font-size: 13px; letter-spacing: .04em; }
.site-header nav a.active { border-color: var(--coral); }
.header-actions { justify-self: end; display: flex; align-items: center; gap: 8px; }
.header-cta { display: flex; align-items: center; min-height: 44px; padding: 10px 20px; border: 1px solid rgba(255,255,255,.25); border-radius: 999px; font-size: 13px; font-weight: 700; }
.nav-toggle { display: none; width: 44px; height: 44px; padding: 0; border: 1px solid rgba(255,255,255,.25); border-radius: 12px; background: transparent; place-content: center; gap: 6px; cursor: pointer; }
.nav-toggle span { display: block; width: 18px; height: 2px; background: white; transition: transform .2s ease; }
.site-header.menu-open .nav-toggle span:first-child { transform: translateY(4px) rotate(45deg); }
.site-header.menu-open .nav-toggle span:last-child { transform: translateY(-4px) rotate(-45deg); }

.hero, .archive, .principles, .resources, .closing { padding: 112px max(20px, calc((100vw - var(--max)) / 2)); }
.eyebrow { margin: 0 0 22px; color: var(--coral); font-size: 12px; font-weight: 800; letter-spacing: .2em; }
.hero {
  min-height: calc(100vh - 84px);
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  align-items: center;
  gap: 72px;
  background: radial-gradient(circle at 80% 10%, #173e78 0, transparent 38%), linear-gradient(135deg, #071d29, #0d3340);
}
.hero h1, .section-heading h2, .closing h2 { margin: 0; font-family: var(--serif); font-size: clamp(48px, 5.6vw, 84px); line-height: 1.12; letter-spacing: -.04em; }
.hero h1 span, .closing h2 span { color: var(--mint); }
.lead { max-width: 58ch; color: rgba(255,255,255,.72); font-size: 17px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 22px; border: 1px solid transparent; border-radius: 12px; font-size: 14px; font-weight: 700; }
.primary { background: var(--coral); color: var(--ink); box-shadow: 0 14px 34px rgba(255,101,52,.2); }
.secondary { border-color: rgba(255,255,255,.35); }
.hero-meta { display: flex; gap: 48px; margin: 44px 0 0; }
.hero-meta div { min-width: 150px; padding-top: 12px; border-top: 1px solid rgba(255,255,255,.25); }
.hero-meta dt { color: var(--coral); font: 700 15px var(--serif); }
.hero-meta dd { margin: 0; font-size: 12px; }

.featured-card { overflow: hidden; border: 1px solid rgba(255,255,255,.22); border-radius: 220px 220px 28px 28px; background: var(--paper-2); color: var(--ink); box-shadow: 0 30px 90px rgba(0,0,0,.3); }
.featured-image { position: relative; height: 330px; background: var(--ink-2); }
.featured-image img { width: 100%; height: 100%; object-fit: cover; }
.featured-copy { padding: 30px 36px 34px; }
.featured-copy > p:first-child { color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.featured-copy time { margin-left: 8px; color: var(--muted); }
.signal { display: inline-block; width: 8px; height: 8px; margin-right: 8px; border-radius: 50%; background: var(--coral); }
.featured-copy h2 { margin: 10px 0 12px; font: 700 clamp(25px, 2.4vw, 36px)/1.35 var(--serif); }
.featured-copy > p:nth-of-type(2) { color: var(--muted); }
.featured-copy > a { display: inline-block; color: var(--blue); font-weight: 800; border-bottom: 2px solid currentColor; }

.paper { background: var(--paper); color: var(--ink); }
.section-heading { display: grid; grid-template-columns: 1.15fr .85fr; align-items: end; gap: 90px; margin-bottom: 52px; }
.section-heading h2, .closing h2 { font-size: clamp(42px, 5vw, 68px); }
.section-heading > p { max-width: 52ch; color: var(--muted); }
.archive-toolbar { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: end; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; }
.filter-bar button { min-height: 44px; padding: 8px 16px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--ink); cursor: pointer; }
.filter-bar button.active { border-color: var(--ink); background: var(--ink); color: white; }
.filter-bar button small { margin-left: 7px; color: var(--coral); font-weight: 800; }
.archive-selects { display: flex; gap: 10px; }
.archive-selects label { color: var(--muted); font-size: 11px; font-weight: 700; letter-spacing: .08em; }
.archive-selects select { display: block; min-width: 126px; min-height: 44px; margin-top: 5px; padding: 8px 34px 8px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper-2); color: var(--ink); }
.article-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px 28px; margin-top: 38px; }
.article-card { overflow: hidden; border: 1px solid var(--line); border-radius: 28px; background: var(--paper-2); box-shadow: 0 20px 60px rgba(11,29,42,.08); }
.article-image { position: relative; display: block; height: 280px; overflow: hidden; background: var(--ink-2); }
.article-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.article-card:hover .article-image img { transform: scale(1.025); }
.article-image span { position: absolute; right: 18px; top: 16px; display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; background: var(--coral); color: var(--ink); font: 800 14px var(--serif); }
.article-copy { padding: 28px 30px 32px; }
.article-copy > p:first-child { display: flex; flex-wrap: wrap; gap: 8px 12px; margin: 0; color: var(--muted); font-size: 12px; }
.article-copy > p:first-child span { color: var(--blue); font-weight: 800; }
.article-copy > p:first-child small { padding-left: 12px; border-left: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.article-copy h3 { margin: 14px 0; font: 700 clamp(24px, 2.3vw, 34px)/1.35 var(--serif); }
.article-copy > p:nth-of-type(2) { color: var(--muted); }
.read-link { display: inline-block; margin-top: 8px; color: var(--blue); font-weight: 800; border-bottom: 2px solid currentColor; }
.empty-state, .load-error { padding: 40px 0; }
.load-error a { color: var(--blue); text-decoration: underline; }

.ink-section { background: linear-gradient(145deg, var(--ink), var(--ink-2)); }
.section-heading.light > p { color: rgba(255,255,255,.7); }
.principle-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; padding: 0; border-top: 1px solid rgba(255,255,255,.18); border-left: 1px solid rgba(255,255,255,.18); list-style: none; }
.principle-grid li { min-height: 260px; padding: 28px; border-right: 1px solid rgba(255,255,255,.18); border-bottom: 1px solid rgba(255,255,255,.18); }
.principle-grid b { display: block; color: var(--coral); font: 700 40px var(--serif); }
.principle-grid span { display: block; margin-top: 24px; color: var(--mint); font: 700 22px var(--serif); }
.principle-grid p { color: rgba(255,255,255,.66); font-size: 14px; }

.tool-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.tool-grid a { display: grid; min-height: 260px; padding: 36px; border: 1px solid var(--line); border-radius: 28px; background: var(--paper-2); box-shadow: 0 20px 60px rgba(11,29,42,.08); }
.tool-grid a:nth-child(2) { background: var(--ink-2); color: white; }
.tool-grid small { color: var(--coral); font-weight: 800; letter-spacing: .14em; }
.tool-grid b { align-self: center; font: 700 clamp(27px, 3vw, 40px)/1.3 var(--serif); }
.tool-grid span { align-self: end; color: var(--blue); font-weight: 800; }
.tool-grid a:nth-child(2) span { color: var(--coral); }

.closing { display: grid; grid-template-columns: 1.2fr .8fr; align-items: end; gap: 70px; background: radial-gradient(circle at 10% 70%, #234272 0, transparent 38%), var(--ink); }
.closing > div > p:last-child { max-width: 55ch; color: rgba(255,255,255,.7); }
.closing-actions { display: flex; justify-content: flex-end; gap: 12px; flex-wrap: wrap; }
footer { max-width: var(--max); margin: auto; padding: 46px 20px; display: flex; align-items: center; gap: 30px; }
footer p { margin-right: auto; color: rgba(255,255,255,.6); }
footer > a:last-child { color: var(--coral); }
:focus-visible { outline: 3px solid var(--mint); outline-offset: 4px; }

@media (max-width: 1020px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .nav-toggle { display: grid; }
  .site-header.menu-open nav { position: absolute; top: calc(100% + 1px); left: 20px; right: 20px; display: grid; height: auto; gap: 0; padding: 10px; border: 1px solid rgba(255,255,255,.15); border-radius: 0 0 18px 18px; background: var(--ink-2); box-shadow: 0 24px 60px rgba(0,0,0,.32); }
  .site-header.menu-open nav a { min-height: 56px; padding: 8px 12px; border-bottom: 1px solid rgba(255,255,255,.12); }
  .site-header.menu-open nav a:last-child { border-bottom: 0; }
  .hero, .section-heading, .closing { grid-template-columns: 1fr; }
  .hero { gap: 56px; }
  .featured-card { max-width: 680px; border-radius: 180px 180px 28px 28px; }
  .principle-grid { grid-template-columns: 1fr 1fr; }
  .closing-actions { justify-content: flex-start; }
}

@media (max-width: 640px) {
  .site-header { height: 72px; }
  .header-cta { padding: 10px 13px; }
  .site-header.menu-open nav { left: 16px; right: 16px; }
  .hero, .archive, .principles, .resources, .closing { padding: 82px 20px; }
  .hero { min-height: auto; }
  .hero h1 { font-size: clamp(40px, 11.5vw, 48px); }
  .lead { font-size: 16px; }
  .hero-meta { gap: 18px; }
  .hero-meta div { min-width: 0; }
  .featured-card { border-radius: 110px 110px 24px 24px; }
  .featured-image { height: 230px; }
  .featured-copy { padding: 24px; }
  .section-heading { gap: 22px; }
  .article-grid, .principle-grid, .tool-grid { grid-template-columns: 1fr; }
  .archive-toolbar { grid-template-columns: 1fr; }
  .archive-selects { display: grid; grid-template-columns: 1fr 1fr; }
  .archive-selects select { width: 100%; min-width: 0; }
  .article-image { height: 220px; }
  .article-copy { padding: 24px; }
  .principle-grid li { min-height: auto; }
  footer { flex-direction: column; align-items: flex-start; }
  footer p { margin: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}