/* 敬請期待 · 門戶資訊式主題 — 墨藍 × 金 */

:root {
  --ink-0: #0a1018;
  --ink-1: #0e1622;
  --ink-2: #141f30;
  --ink-3: #1c2a3f;
  --gold-0: #8a6d3b;
  --gold-1: #c9a35c;
  --gold-2: #e6c87a;
  --paper: #e9e2d2;
  --text: #d8dce3;
  --text-dim: #97a1b0;
  --line: rgba(201, 163, 92, 0.28);
  --serif: "Noto Serif TC", "Songti TC", "PMingLiU", serif;
  --sans: "PingFang TC", "Microsoft JhengHei", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  color: var(--text);
  background: var(--ink-0) url("/assets/img/bg-ink.png") center top / cover fixed no-repeat;
  line-height: 1.7;
}

a { color: var(--gold-2); text-decoration: none; }
a:hover { color: var(--gold-1); }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 16, 24, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand { display: flex; align-items: center; gap: 10px; }

.brand-seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1.5px solid var(--gold-1);
  border-radius: 6px;
  color: var(--gold-2);
  font-family: var(--serif);
  font-size: 20px;
  background: linear-gradient(145deg, var(--ink-2), var(--ink-1));
}

.brand-name {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 6px;
  color: var(--gold-2);
  text-shadow: 0 0 18px rgba(230, 200, 122, 0.35);
}

.nav-links {
  margin: 0 0 0 auto;
  padding: 0;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-links a {
  color: var(--text);
  font-size: 15px;
  letter-spacing: 2px;
}
.nav-links a:hover { color: var(--gold-2); }

.nav-cta {
  padding: 8px 18px;
  border-radius: 4px;
  background: linear-gradient(160deg, var(--gold-2), var(--gold-1));
  color: #2a1e08 !important;
  font-weight: 600;
}
.nav-cta:hover { filter: brightness(1.08); }

.nav-toggle {
  display: none;
  margin-left: auto;
  background: rgba(201, 163, 92, 0.08);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--gold-2);
  font-size: 18px;
  padding: 4px 10px;
}

/* --- refined hamburger --- */

.nav-toggle {
  position: relative;
  width: 44px;
  height: 40px;
  padding: 0;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: background 0.25s ease, border-color 0.25s ease;
}
.nav-toggle:hover { background: rgba(201, 163, 92, 0.16); }
.nav-toggle:focus-visible {
  outline: 2px solid var(--gold-2);
  outline-offset: 2px;
}

.nav-toggle .bar {
  position: absolute;
  left: 11px;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--gold-2);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.25s ease, top 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.nav-toggle .bar:nth-child(1) { top: 12px; }
.nav-toggle .bar:nth-child(2) { top: 19px; }
.nav-toggle .bar:nth-child(3) { top: 26px; }

body.nav-open .nav-toggle {
  background: rgba(201, 163, 92, 0.18);
  border-color: var(--gold-1);
}
body.nav-open .nav-toggle .bar:nth-child(1) { top: 19px; transform: rotate(45deg); }
body.nav-open .nav-toggle .bar:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle .bar:nth-child(3) { top: 19px; transform: rotate(-45deg); }

@media (max-width: 720px) {
  .nav { position: relative; flex-wrap: wrap; height: auto; padding: 12px 16px; gap: 12px; }
  .nav-toggle { display: block; }

  /* glass panel that slides out from under the header */
  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    left: 12px;
    right: 12px;
    z-index: 60;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    margin: 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: rgba(14, 22, 34, 0.72);
    backdrop-filter: blur(16px) saturate(1.2);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.5);
    /* hidden state: lifted up, transparent, non-interactive */
    display: flex;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-14px);
    pointer-events: none;
    transition: opacity 0.35s ease, transform 0.42s cubic-bezier(0.22, 1, 0.36, 1), visibility 0s linear 0.42s;
  }

  body.nav-open .nav-links {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
    transition: opacity 0.35s ease, transform 0.42s cubic-bezier(0.22, 1, 0.36, 1), visibility 0s;
  }

  /* each link glides in with a slight stagger */
  .nav-links li {
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.3s ease, transform 0.38s cubic-bezier(0.22, 1, 0.36, 1);
  }
  body.nav-open .nav-links li { opacity: 1; transform: translateY(0); }
  body.nav-open .nav-links li:nth-child(1) { transition-delay: 0.05s; }
  body.nav-open .nav-links li:nth-child(2) { transition-delay: 0.10s; }
  body.nav-open .nav-links li:nth-child(3) { transition-delay: 0.15s; }
  body.nav-open .nav-links li:nth-child(4) { transition-delay: 0.20s; }
  body.nav-open .nav-links li:nth-child(5) { transition-delay: 0.25s; }

  .nav-links li a {
    display: block;
    padding: 11px 14px;
    border-radius: 8px;
    font-size: 16px;
  }
  .nav-links li a:hover { background: rgba(201, 163, 92, 0.12); }
  .nav-links .nav-cta { text-align: center; margin-top: 4px; }
}

@media (prefers-reduced-motion: reduce) {
  .nav-toggle .bar,
  .nav-links,
  .nav-links li { transition: none; }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 68vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero img.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* --- carousel --- */

.hero-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.9s ease, visibility 0s linear 0.9s;
}
.hero-slide.active {
  opacity: 1;
  visibility: visible;
  position: relative;
  transition: opacity 0.9s ease;
}

.hero-dots {
  position: absolute;
  bottom: 26px;
  left: 0;
  right: 0;
  z-index: 2;
  display: flex;
  justify-content: center;
  gap: 10px;
}

.hero-dot {
  width: 26px;
  height: 4px;
  border: none;
  border-radius: 2px;
  background: rgba(233, 226, 210, 0.35);
  cursor: pointer;
  padding: 0;
  transition: background 0.3s ease;
}
.hero-dot:hover { background: rgba(233, 226, 210, 0.65); }
.hero-dot.active { background: var(--gold-2); }
.hero-dot:focus-visible { outline: 2px solid var(--gold-2); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  .hero-slide { transition: none; }
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10,16,24,0.25), rgba(10,16,24,0.15) 45%, var(--ink-0) 96%);
}

.hero-inner { position: relative; z-index: 1; padding: 80px 20px 120px; }

.hero-kicker {
  font-size: 15px;
  letter-spacing: 8px;
  color: var(--paper);
  opacity: 0.85;
  margin: 0 0 14px;
}

.hero-title {
  font-family: var(--serif);
  font-size: clamp(56px, 9vw, 108px);
  letter-spacing: 18px;
  margin: 0 0 18px;
  color: var(--gold-2);
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.65), 0 0 46px rgba(230, 200, 122, 0.3);
}

.hero-sub {
  font-size: 17px;
  color: var(--paper);
  opacity: 0.9;
  margin: 0 0 36px;
  letter-spacing: 3px;
}

.btn {
  display: inline-block;
  padding: 14px 44px;
  border-radius: 4px;
  font-size: 18px;
  letter-spacing: 4px;
  font-weight: 600;
  transition: transform 0.15s ease, filter 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn-gold {
  background: linear-gradient(160deg, var(--gold-2), var(--gold-1));
  color: #2a1e08;
  box-shadow: 0 6px 26px rgba(201, 163, 92, 0.35);
}
.btn-gold:hover { color: #2a1e08; filter: brightness(1.07); }

.btn-ghost {
  margin-left: 14px;
  border: 1px solid var(--line);
  color: var(--gold-2);
  background: rgba(10, 16, 24, 0.4);
}

/* ---------- Portal sections ---------- */

.portal {
  max-width: 1180px;
  margin: 0 auto;
  padding: 56px 20px 30px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 22px;
}

@media (max-width: 900px) { .portal { grid-template-columns: 1fr; } }

.col-card {
  background: linear-gradient(170deg, rgba(28, 42, 63, 0.82), rgba(14, 22, 34, 0.9));
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.col-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  background: rgba(201, 163, 92, 0.07);
}

.col-head h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 21px;
  letter-spacing: 6px;
  color: var(--gold-2);
}

.col-head a { font-size: 13px; color: var(--text-dim); }
.col-head a:hover { color: var(--gold-2); }

.col-hero { display: block; }
.col-hero img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; display: block; }

.col-list { list-style: none; margin: 0; padding: 8px 20px 16px; }

.col-list li {
  padding: 10px 0;
  border-bottom: 1px dashed rgba(151, 161, 176, 0.18);
}
.col-list li:last-child { border-bottom: none; }

.col-list a {
  display: block;
  color: var(--text);
  font-size: 14.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.col-list a:hover { color: var(--gold-2); }

.col-list .date {
  font-size: 12px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

/* quick entries under the three columns */
.quick {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px 70px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.quick .btn { flex: 1 1 200px; text-align: center; }

.quick .btn-disabled {
  flex: 1 1 200px;
  text-align: center;
  padding: 14px 44px;
  border-radius: 4px;
  font-size: 18px;
  letter-spacing: 4px;
  border: 1px dashed var(--line);
  color: var(--text-dim);
  cursor: not-allowed;
}

/* ---------- News pages ---------- */

.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 56px 20px 90px;
}

.page-title {
  font-family: var(--serif);
  font-size: 34px;
  letter-spacing: 8px;
  color: var(--gold-2);
  margin: 0 0 6px;
}

.page-kicker { color: var(--text-dim); font-size: 14px; margin: 0 0 28px; }

.tabs { display: flex; gap: 10px; margin-bottom: 26px; flex-wrap: wrap; }

.tabs a {
  padding: 7px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  font-size: 14px;
  letter-spacing: 2px;
}
.tabs a.active, .tabs a:hover {
  background: linear-gradient(160deg, var(--gold-2), var(--gold-1));
  color: #2a1e08;
  border-color: transparent;
}

.news-list { list-style: none; margin: 0; padding: 0; }

.news-list li {
  display: flex;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(151, 161, 176, 0.16);
}

.news-list img {
  width: 180px;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--line);
  flex-shrink: 0;
}

.news-list .cat {
  display: inline-block;
  font-size: 12px;
  color: var(--gold-2);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 1px 8px;
  margin-bottom: 6px;
  letter-spacing: 2px;
}

.news-list h2 { margin: 0 0 6px; font-size: 18px; font-weight: 600; }
.news-list h2 a { color: var(--text); }
.news-list h2 a:hover { color: var(--gold-2); }

.news-list p { margin: 0 0 6px; font-size: 14px; color: var(--text-dim); }
.news-list .date { font-size: 12.5px; color: var(--text-dim); font-variant-numeric: tabular-nums; }

@media (max-width: 640px) {
  .news-list li { flex-direction: column; }
  .news-list img { width: 100%; }
}

/* article */

.article-meta { color: var(--text-dim); font-size: 13.5px; margin-bottom: 22px; }
.article-meta .cat { color: var(--gold-2); margin-right: 10px; letter-spacing: 2px; }

.article-hero { width: 100%; border-radius: 8px; border: 1px solid var(--line); margin-bottom: 26px; }

.article-body p { font-size: 16px; margin: 0 0 18px; }

.back-link { display: inline-block; margin-top: 26px; font-size: 14px; }

/* ---------- Download ---------- */

.spec {
  width: 100%;
  border-collapse: collapse;
  margin: 22px 0 34px;
  font-size: 15px;
}
.spec th, .spec td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(151, 161, 176, 0.16);
}
.spec th { color: var(--gold-2); width: 200px; font-weight: 500; letter-spacing: 2px; }
.spec td { color: var(--text); }

.note {
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 18px 22px;
  color: var(--text-dim);
  font-size: 14.5px;
  background: rgba(201, 163, 92, 0.05);
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(10, 16, 24, 0.92);
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 42px 20px 20px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 30px;
}

.footer-brand p { color: var(--text-dim); font-size: 14px; margin: 10px 0 0; }

.footer-col h3 {
  font-size: 14px;
  color: var(--gold-1);
  letter-spacing: 3px;
  margin: 0 0 12px;
}
.footer-col a { display: block; color: var(--text-dim); font-size: 14px; margin-bottom: 8px; }
.footer-col a:hover { color: var(--gold-2); }

.footer-line {
  text-align: center;
  color: var(--text-dim);
  font-size: 12.5px;
  padding: 18px 20px 26px;
  margin: 0;
}

@media (max-width: 720px) { .footer-inner { grid-template-columns: 1fr; } }