/* ============================================================
   MFTEDA 官網設計系統 — 復刻 Hostinger Horizons 原站樣式
   色彩令牌與原站一致（HSL 三元組）
   ============================================================ */
:root {
  --background: 0 0% 100%;
  --foreground: 210 15% 20%;
  --card: 0 0% 100%;
  --card-foreground: 210 15% 20%;
  --popover: 0 0% 100%;
  --popover-foreground: 210 15% 20%;
  --primary: 189 65% 32%;
  --primary-foreground: 0 0% 100%;
  --secondary: 186 65% 32%;
  --secondary-foreground: 0 0% 100%;
  --muted: 210 10% 96%;
  --muted-foreground: 210 10% 42%;
  --destructive: 0 84% 60%;
  --destructive-foreground: 0 0% 100%;
  --border: 210 12% 88%;
  --input: 210 12% 88%;
  --ring: 189 65% 32%;
  --radius: .75rem;
  --font-serif: "Playfair Display", "Songti SC", "STSong", "Noto Serif TC", "Noto Serif SC", "SimSun", serif;
  --font-sans: "DM Sans", -apple-system, BlinkMacSystemFont, "PingFang TC", "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: hsl(var(--background));
  color: hsl(var(--foreground));
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
:focus-visible { outline: 2px solid hsl(var(--primary)); outline-offset: 2px; border-radius: 2px; }
h1, h2, h3, h4 { font-family: var(--font-serif); }

.container-institutional { margin-left: auto; margin-right: auto; max-width: 80rem; padding-left: 1rem; padding-right: 1rem; }
@media (min-width: 640px) { .container-institutional { padding-left: 1.5rem; padding-right: 1.5rem; } }
@media (min-width: 1024px) { .container-institutional { padding-left: 2rem; padding-right: 2rem; } }

.section-spacing { padding-top: 5rem; padding-bottom: 5rem; }
@media (min-width: 768px) { .section-spacing { padding-top: 6rem; padding-bottom: 6rem; } }

.institutional-heading { font-size: 2.25rem; line-height: 1.25; font-weight: 700; letter-spacing: -.02em; }
@media (min-width: 768px) { .institutional-heading { font-size: 3rem; line-height: 1.15; } }
@media (min-width: 1024px) { .institutional-heading { font-size: 3.75rem; } }

.institutional-subheading { font-size: 1.5rem; line-height: 1.375; font-weight: 600; }
@media (min-width: 768px) { .institutional-subheading { font-size: 1.875rem; line-height: 2.25rem; } }

.text-muted-foreground { color: hsl(var(--muted-foreground)); }
.text-lg { font-size: 1.125rem; line-height: 1.75; }

/* ---------- 卡片 ---------- */
.institutional-card {
  border-radius: var(--radius);
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card));
  padding: 1.5rem;
  box-shadow: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);
  transition: box-shadow .3s cubic-bezier(.4,0,.2,1), transform .3s cubic-bezier(.4,0,.2,1);
}
a.institutional-card:hover {
  box-shadow: 0 25px 50px -12px rgb(0 0 0 / .25);
  transform: translateY(-2px);
}

/* ---------- 按鈕 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  border-radius: var(--radius); padding: .75rem 1.5rem; font-weight: 500; font-size: 1rem;
  cursor: pointer; border: 2px solid transparent;
  transition: all .2s cubic-bezier(.4,0,.2,1);
}
.btn:active { transform: scale(.98); }
.btn svg { width: 1.25rem; height: 1.25rem; }
.btn-primary { background: hsl(var(--primary)); color: hsl(var(--primary-foreground)); box-shadow: 0 4px 6px -1px rgb(0 0 0 / .1); }
.btn-primary:hover { background: hsl(var(--primary) / .9); }
.btn-secondary { background: hsl(var(--secondary)); color: hsl(var(--secondary-foreground)); box-shadow: 0 4px 6px -1px rgb(0 0 0 / .1); }
.btn-secondary:hover { background: hsl(var(--secondary) / .9); }
.btn-outline { border-color: hsl(var(--primary)); color: hsl(var(--primary)); background: transparent; }
.btn-outline:hover { background: hsl(var(--primary)); color: hsl(var(--primary-foreground)); }
.btn-glass { background: rgb(255 255 255 / .1); backdrop-filter: blur(4px); border-color: #fff; color: #fff; }
.btn-glass:hover { background: #fff; color: hsl(var(--primary)); }
.btn-white { background: #fff; color: hsl(var(--primary)); box-shadow: 0 4px 6px -1px rgb(0 0 0 / .1); }
.btn-white:hover { background: rgb(255 255 255 / .9); }

/* ---------- 頁頭 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50; width: 100%;
  border-bottom: 1px solid hsl(var(--border));
  background: hsl(var(--background) / .95);
  backdrop-filter: blur(8px);
}
.site-header .container-institutional { display: flex; align-items: center; justify-content: space-between; height: 5rem; }
.logo-link { display: flex; align-items: center; gap: .75rem; transition: opacity .2s; }
.logo-link:hover { opacity: .8; }
.logo-link img { height: 3rem; width: auto; }
.main-nav { display: none; align-items: center; gap: .25rem; }
@media (min-width: 1280px) { .main-nav { display: flex; } }
.main-nav a {
  padding: .5rem .75rem; font-size: .875rem; font-weight: 500; border-radius: .5rem;
  color: hsl(var(--foreground)); transition: all .2s;
}
.main-nav a:hover { color: hsl(var(--primary)); background: hsl(var(--primary) / .05); }
.main-nav a.active { color: hsl(var(--primary)); background: hsl(var(--primary) / .1); }
@media (min-width: 1280px) and (max-width: 1439px) {
  .main-nav { font-size: .8rem; }
  .main-nav a { font-size: .8rem; padding: .5rem; }
}
.header-actions { display: flex; align-items: center; gap: .5rem; }
.lang-switch { position: relative; }
.lang-switch > button {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .5rem .75rem; font-size: .875rem; font-weight: 500;
  background: transparent; border: none; border-radius: .5rem; cursor: pointer;
  color: hsl(var(--foreground)); font-family: var(--font-sans);
}
.lang-switch > button:hover { background: hsl(var(--primary) / .05); color: hsl(var(--primary)); }
.lang-switch .dropdown {
  position: absolute; right: 0; top: calc(100% + .5rem); min-width: 11rem;
  background: hsl(var(--popover)); border: 1px solid hsl(var(--border));
  border-radius: var(--radius); box-shadow: 0 10px 15px -3px rgb(0 0 0 / .1);
  padding: .25rem; display: none; z-index: 60;
}
.lang-switch.open .dropdown { display: block; }
.lang-switch .dropdown a {
  display: flex; align-items: center; gap: .5rem; padding: .5rem .75rem;
  font-size: .875rem; border-radius: .375rem;
}
.lang-switch .dropdown a:hover { background: hsl(var(--muted)); }
.lang-switch .dropdown a.current { color: hsl(var(--primary)); font-weight: 600; }
.lang-switch > button svg { width: 1rem; height: 1rem; flex-shrink: 0; }
.menu-toggle svg { width: 1.5rem; height: 1.5rem; }
.menu-toggle {
  display: inline-flex; padding: .5rem; background: transparent; border: none;
  border-radius: .5rem; cursor: pointer; color: hsl(var(--foreground));
}
.menu-toggle:hover { background: hsl(var(--primary) / .05); }
@media (min-width: 1280px) { .menu-toggle { display: none; } }

/* ---------- 跳轉鏈接（僅鍵盤聚焦時可見） ---------- */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: #fff; color: hsl(var(--primary)); font-weight: 600;
  padding: .75rem 1.25rem; border-radius: 0 0 .5rem 0;
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / .1);
}
.skip-link:focus { left: 0; }

.mobile-panel {
  position: fixed; inset: 0 0 0 auto; width: 300px; max-width: 84vw; z-index: 70;
  background: hsl(var(--background)); border-left: 1px solid hsl(var(--border));
  padding: 2rem 1.5rem; transform: translateX(100%);
  visibility: hidden; transition: transform .3s, visibility 0s .3s;
  overflow-y: auto;
}
.mobile-panel.open { transform: translateX(0); visibility: visible; transition: transform .3s, visibility 0s 0s; }
.mobile-panel a.mnav {
  display: block; padding: .75rem 1rem; font-size: 1rem; font-weight: 500;
  border-radius: .5rem; margin-bottom: .25rem;
}
.mobile-panel a.mnav:hover { color: hsl(var(--primary)); background: hsl(var(--primary) / .05); }
.mobile-panel a.mnav.active { color: hsl(var(--primary)); background: hsl(var(--primary) / .1); }
.panel-overlay {
  position: fixed; inset: 0; z-index: 65; background: rgb(0 0 0 / .4);
  opacity: 0; pointer-events: none; transition: opacity .3s;
}
.panel-overlay.open { opacity: 1; pointer-events: auto; }

/* ---------- 首頁 Hero ---------- */
.hero {
  position: relative; display: flex; align-items: center;
  min-height: calc(100vh - 5rem); padding: 6rem 0;
  background-size: cover; background-position: center;
  color: #fff; text-align: center;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, hsl(190 55% 22% / .82), hsl(189 60% 28% / .78));
}
.hero .container-institutional { position: relative; }
.hero h1 { font-size: 1.35rem; line-height: 1.4; font-weight: 700; margin: 0 auto 1.5rem; max-width: 66rem; letter-spacing: 0; }
@media (min-width: 768px) { .hero h1 { font-size: 1.9rem; } }
@media (min-width: 1024px) { .hero h1 { font-size: 2.35rem; } }
html[lang="en"] .hero h1, html[lang="pt"] .hero h1 { font-size: 1.15rem; line-height: 1.35; }
@media (min-width: 768px) { html[lang="en"] .hero h1, html[lang="pt"] .hero h1 { font-size: 1.6rem; } }
@media (min-width: 1024px) { html[lang="en"] .hero h1, html[lang="pt"] .hero h1 { font-size: 1.9rem; } }
.hero p.sub { font-size: 1.25rem; line-height: 1.75; max-width: 48rem; margin: 0 auto 3rem; opacity: .95; }

/* 首頁 hero 世界地圖大洲動態連線：以澳門為樞紐向外輻射的脈衝弧線與節點漣漪 */
.hero-links { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-links .link-base { fill: none; stroke: rgba(255, 255, 255, .28); stroke-width: 2.5; }
.hero-links .link-pulse { fill: none; stroke: rgba(190, 240, 255, .95); stroke-width: 5; stroke-linecap: round; stroke-dasharray: 90 910; animation: heroLinkFlow 7s linear infinite; }
.hero-links .node-core { fill: rgba(205, 246, 255, .95); }
.hero-links .node-ring { fill: none; stroke: rgba(190, 240, 255, .55); stroke-width: 2.5; transform-box: fill-box; transform-origin: center; animation: heroNodeRipple 3.2s ease-out infinite; }
@keyframes heroLinkFlow { from { stroke-dashoffset: 1000; } to { stroke-dashoffset: 0; } }
@keyframes heroNodeRipple { 0% { transform: scale(.5); opacity: .85; } 100% { transform: scale(3); opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .hero-links .link-pulse, .hero-links .node-ring { display: none; } }
.hero .cta-row { display: flex; flex-direction: column; gap: 1rem; justify-content: center; }
@media (min-width: 640px) { .hero .cta-row { flex-direction: row; } }
.hero .btn-primary { box-shadow: 0 0 0 2px rgba(255,255,255,.85); }

/* ---------- 內頁頁首 ---------- */
.page-hero {
  padding-top: 5rem; padding-bottom: 5rem;
  background: linear-gradient(180deg, hsl(var(--primary) / .05), hsl(var(--background)));
  text-align: center;
}
@media (min-width: 768px) { .page-hero { padding-top: 6rem; padding-bottom: 6rem; } }
.page-hero h1 { margin-bottom: 1.5rem; }
.page-hero .sub { font-family: var(--font-sans); font-size: 1.5rem; line-height: 1.375; font-weight: 600; }
@media (min-width: 768px) { .page-hero .sub { font-size: 1.875rem; } }

/* ---------- 網格 ---------- */
.grid { display: grid; gap: 2rem; }
.grid-2 { grid-template-columns: repeat(1, 1fr); }
.grid-3 { grid-template-columns: repeat(1, 1fr); }
.grid-4 { grid-template-columns: repeat(1, 1fr); }
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mb-4 { margin-bottom: 1rem; } .mb-6 { margin-bottom: 1.5rem; }
.mb-12 { margin-bottom: 3rem; } .mb-16 { margin-bottom: 4rem; }
.max-w-2 { max-width: 42rem; } .max-w-4 { max-width: 56rem; } .max-w-5 { max-width: 64rem; } .max-w-6 { max-width: 72rem; }

.icon-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 4rem; height: 4rem; border-radius: 1rem;
  background: hsl(var(--primary) / .1); color: hsl(var(--primary)); margin-bottom: 1.5rem;
}
.icon-badge svg { width: 3rem; height: 3rem; }
.icon-badge.secondary { background: hsl(var(--secondary) / .1); color: hsl(var(--secondary)); }
.icon-badge.sm { width: 3rem; height: 3rem; border-radius: .75rem; margin-bottom: 1rem; }
.icon-badge.sm svg { width: 1.5rem; height: 1.5rem; }
.icon-badge.xs { width: 2.5rem; height: 2.5rem; border-radius: .5rem; margin-bottom: 0; flex-shrink: 0; }
.icon-badge.xs svg { width: 1.5rem; height: 1.5rem; }

/* ---------- 研究領域卡片 ---------- */
.research-card { text-align: left; }
.research-card h2, .research-card h3 { font-family: var(--font-sans); font-size: 1.25rem; font-weight: 600; margin-bottom: .75rem; }
.research-card p { color: hsl(var(--muted-foreground)); line-height: 1.625; }

/* ---------- 重點項目時間線 ---------- */
.timeline-item { display: flex; gap: 1.5rem; align-items: flex-start; }
.timeline-year {
  flex-shrink: 0; display: inline-flex; align-items: center; justify-content: center;
  min-width: 4.5rem; padding: .5rem 1rem; border-radius: 9999px;
  background: hsl(var(--primary)); color: #fff; font-weight: 600; font-size: .875rem;
}
.timeline-card { flex: 1; }
.timeline-card h3 { font-family: var(--font-sans); font-size: 1.25rem; font-weight: 600; margin-bottom: .75rem; }
.timeline-card p { color: hsl(var(--muted-foreground)); line-height: 1.625; }

/* ---------- 出版物 ---------- */
.book-card { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.book-cover { aspect-ratio: 1 / 1; object-fit: cover; width: 100%; }
.book-body { padding: 1.5rem; display: flex; flex-direction: column; gap: 1rem; flex: 1; }
.book-body h3 { font-family: var(--font-sans); font-size: 1.25rem; font-weight: 600; }
.book-body p { color: hsl(var(--muted-foreground)); line-height: 1.625; flex: 1; }
.book-actions { display: flex; flex-direction: column; gap: .75rem; }
.book-actions .btn { width: 100%; padding: .5rem 1rem; font-size: .875rem; }

/* ---------- 研究洞察 ---------- */
.insight-meta { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem; font-size: .875rem; color: hsl(var(--muted-foreground)); flex-wrap: wrap; }
.insight-meta .date { display: inline-flex; align-items: center; gap: .375rem; white-space: nowrap; }
.insight-meta .date svg { width: 1rem; height: 1rem; }
.insight-meta .source { white-space: nowrap; font-weight: 500; }
.badge {
  display: inline-flex; align-items: center; border-radius: 9999px; padding: .25rem .75rem;
  font-size: .75rem; font-weight: 600;
  background: hsl(var(--secondary) / .1); color: hsl(var(--primary));
}
.insight-card h2, .insight-card h3 { font-family: var(--font-sans); font-size: 1.25rem; font-weight: 600; margin-bottom: .75rem; }
.insight-card p { color: hsl(var(--muted-foreground)); line-height: 1.625; margin-bottom: 1.5rem; flex: 1; }
.read-more { display: inline-flex; align-items: center; gap: .5rem; font-weight: 500; color: hsl(var(--primary)); }
.read-more svg { width: 1rem; height: 1rem; transition: transform .2s; }
.read-more:hover svg { transform: translateX(4px); }
.insight-card { display: flex; flex-direction: column; }

/* ---------- 社評專欄 ---------- */
.column-card { display: block; padding: clamp(1.5rem, 3vw, 2.5rem); border-left: 4px solid hsl(var(--secondary)); transition: transform .2s, box-shadow .2s; }
.column-card:hover { transform: translateY(-2px); box-shadow: 0 10px 25px -5px rgb(0 0 0 / .1); }
.column-card h3 { font-family: var(--font-sans); font-size: 1.5rem; font-weight: 600; margin-bottom: .75rem; color: hsl(var(--foreground)); }
.column-card p { color: hsl(var(--muted-foreground)); line-height: 1.75; margin-bottom: 1.25rem; }
.column-card-meta { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.column-card-author { font-size: .875rem; color: hsl(var(--muted-foreground)); }
.article-author { text-align: center; margin-top: 1rem; font-size: .9375rem; color: hsl(var(--muted-foreground)); }
.article-author strong { color: hsl(var(--foreground)); font-weight: 600; }
.article-source { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid hsl(var(--border)); font-size: .9375rem; color: hsl(var(--muted-foreground)); }
.article-source a { color: hsl(var(--primary)); font-weight: 500; }

/* ---------- 合作夥伴 ---------- */
.partner-card { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; min-height: 11rem; gap: 1rem; }
.partner-card h2, .partner-card h3 { font-family: var(--font-sans); font-size: 1.125rem; font-weight: 600; }
.partner-logo { display: flex; align-items: center; justify-content: center; height: 3.15rem; }
.partner-logo img { max-height: 3.15rem; max-width: 70%; object-fit: contain; }

/* ---------- 關於我們 ---------- */
.purpose-card {
  background: linear-gradient(135deg, hsl(var(--primary) / .05), hsl(var(--background)) 45%, hsl(var(--secondary) / .05));
  border-left: 4px solid hsl(var(--primary));
  border-radius: 1rem; padding: 2rem; box-shadow: 0 10px 15px -3px rgb(0 0 0 / .1);
}
@media (min-width: 768px) { .purpose-card { padding: 3rem; } }
.purpose-card h2 { font-size: 1.875rem; line-height: 2.25rem; font-weight: 700; margin-bottom: 2rem; }
@media (min-width: 768px) { .purpose-card h2 { font-size: 2.25rem; line-height: 2.5rem; } }
.purpose-card p { font-size: 1.125rem; line-height: 1.75; color: hsl(var(--muted-foreground)); margin-bottom: 1.5rem; }
@media (min-width: 768px) { .purpose-card p { font-size: 1.25rem; } }
.purpose-card p:last-child { margin-bottom: 0; }
.bg-muted { background: hsl(var(--muted)); }
.bg-muted-30 { background: hsl(var(--muted) / .3); }
.bg-muted-50 { background: hsl(var(--muted) / .5); }
.no-border { border: none; }
.shadow-md { box-shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1); }
.shadow-md:hover { box-shadow: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1); }
.obj-item {
  display: flex; align-items: flex-start; gap: 1rem;
  background: hsl(var(--background)); border: 1px solid hsl(var(--border));
  border-radius: .75rem; padding: 1.5rem; transition: box-shadow .2s;
}
.obj-item:hover { box-shadow: 0 4px 6px -1px rgb(0 0 0 / .1); }
.obj-item p { font-size: 1.125rem; line-height: 1.625; flex: 1; }
.focus-item { display: flex; align-items: center; gap: 1rem; }
.focus-item .label { font-weight: 500; font-size: 1.125rem; }
.initiative-item { display: flex; align-items: center; gap: 1rem; }

/* ---------- CTA 橫幅 ---------- */
.cta-band { background: hsl(var(--primary)); color: hsl(var(--primary-foreground)); text-align: center; }
.cta-band p.lead { font-size: 1.25rem; line-height: 1.75; max-width: 42rem; margin: 0 auto 2rem; opacity: .9; }

/* ---------- Tabs ---------- */
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* ---------- 聯繫表單 ---------- */
.contact-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; }
@media (min-width: 1024px) { .contact-grid { grid-template-columns: 1fr 2fr; } }
.contact-info h3 { font-size: 1.5rem; font-weight: 600; margin-bottom: 1rem; font-family: var(--font-sans); }
.info-row { margin-bottom: 1.5rem; }
.info-row .label { display: flex; align-items: center; gap: .5rem; color: hsl(var(--muted-foreground)); margin-bottom: .5rem; font-weight: 500; }
.info-row .label svg { width: 1.25rem; height: 1.25rem; }
.info-row a { color: hsl(var(--primary)); }
.info-row a:hover { text-decoration: underline; }
.social-row { display: flex; gap: 1rem; }
.social-row a {
  display: inline-flex; padding: .75rem; background: hsl(var(--muted));
  border-radius: .5rem; color: hsl(var(--muted-foreground)); transition: all .2s;
}
.social-row a:hover { color: hsl(var(--primary)); background: hsl(var(--primary) / .1); }
.social-row svg { width: 1.25rem; height: 1.25rem; }
.tabs { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; margin-bottom: 2rem; background: hsl(var(--muted)); padding: .25rem; border-radius: .5rem; }
.tabs button {
  padding: .75rem 1rem; font-size: .875rem; font-weight: 500; border: none; border-radius: .375rem;
  background: transparent; cursor: pointer; color: hsl(var(--muted-foreground)); font-family: var(--font-sans);
  transition: all .2s;
}
.tabs button:hover { background: hsl(var(--foreground) / .06); }
.tabs button.active { background: hsl(var(--background)); color: hsl(var(--foreground)); box-shadow: 0 1px 2px 0 rgb(0 0 0 / .05); }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; font-weight: 500; margin-bottom: .5rem; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; border: 1px solid hsl(var(--input)); border-radius: .375rem;
  padding: .625rem .75rem; font-size: .875rem; font-family: var(--font-sans);
  color: hsl(var(--foreground)); background: transparent;
  transition: border-color .2s, box-shadow .2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: hsl(var(--ring)); box-shadow: 0 0 0 3px hsl(var(--ring) / .15);
}
.form-group input.error, .form-group textarea.error { border-color: hsl(var(--destructive)); }
.form-group .err-msg { font-size: .875rem; color: hsl(var(--destructive)); margin-top: .25rem; }
textarea { resize: vertical; min-height: 6rem; }
.form-toast {
  display: none; align-items: center; gap: .75rem; margin-top: 1rem;
  background: hsl(var(--secondary) / .1); border: 1px solid hsl(var(--secondary) / .3);
  color: hsl(var(--secondary)); padding: 1rem 1.25rem; border-radius: .5rem; font-weight: 500;
}
.form-toast.show { display: flex; }
.form-toast svg { width: 1.25rem; height: 1.25rem; flex-shrink: 0; }

/* ---------- 頁尾 ---------- */
.site-footer { background: hsl(var(--muted)); border-top: 1px solid hsl(var(--border)); }
.site-footer .section-spacing { padding-top: 4rem; padding-bottom: 4rem; }
.footer-grid { display: grid; gap: 3rem; grid-template-columns: 1fr; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: repeat(4, 1fr); } }
.footer-brand-col { align-self: center; }
.footer-col .logo-link img { height: 3rem; width: auto; margin-bottom: 1rem; }
.footer-col p.desc { font-size: .875rem; color: hsl(var(--muted-foreground)); line-height: 1.625; }
.footer-col .social-row { margin-top: 1.5rem; }
.footer-address { display: flex; align-items: flex-start; gap: .5rem; margin-top: 1.25rem; font-size: .875rem; line-height: 1.7; color: hsl(var(--muted-foreground)); }
.footer-address svg { width: 1rem; height: 1rem; flex-shrink: 0; margin-top: .25rem; }
.footer-col h4 { font-family: var(--font-sans); font-size: .875rem; font-weight: 600; margin-bottom: 1rem; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: .75rem; }
.footer-col ul a, .footer-col ul span { font-size: .875rem; color: hsl(var(--muted-foreground)); transition: color .2s; }
.footer-col ul a:hover { color: hsl(var(--primary)); }
.footer-bottom {
  border-top: 1px solid hsl(var(--border));
  padding: 1.5rem 0; display: flex; flex-direction: column; gap: .75rem;
  align-items: center; justify-content: space-between; font-size: .875rem;
  color: hsl(var(--muted-foreground));
}
@media (min-width: 768px) { .footer-bottom { flex-direction: row; } }
.footer-bottom a { color: hsl(var(--muted-foreground)); }
.footer-bottom a:hover { color: hsl(var(--primary)); }

/* ---------- 進場動畫 ---------- */
/* 無 JS 時內容默認可見；有 JS 才啟用淡入，並有 1.5s 兜底計時器確保一定顯示 */
.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s cubic-bezier(.4,0,.2,1), transform .6s cubic-bezier(.4,0,.2,1); }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}