:root {
  --navy: #14314e;        /* 主色：深藍 */
  --navy-light: #1d4a72;
  --gold: #ffa93c;        /* 強調色：橘色，跟深藍是對比色，按鈕/數字一眼就看到 */
  --gold-light: #ffcb96;  /* 淺橘，用於次要強調 */
  --red: #f28b2e;         /* 撥打電話按鈕色，深一點的橘，跟主橘做區隔 */
  --accent2: #2c7a7b;     /* 第二強調色：藍綠，用在標籤/徽章增加一點變化 */
  --bg: #ffffff;           /* 白底為主 */
  --bg-alt: #f3f6f9;       /* 區塊交錯用的淺底色，打破整片純白的空 */
  --card-bg: #ffffff;      /* 卡片維持白色，才能在淺底色區塊上跳出來 */
  --text: #14314e;         /* 內文直接用深藍，跟白底對比最強 */
  --text-muted: #4c5c6e;
  --border: #dfe3e8;
  --radius: 14px;
  --max-width: 1280px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

#top, #about, #why, #knowledge, #articles, #tools, #contact {
  scroll-margin-top: 76px;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }
img { max-width: 100%; display: block; }

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px;
}

.section-tag {
  color: var(--navy);
  font-weight: 700;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  text-align: center;
  margin: 0 0 8px;
}

.section-title {
  text-align: center;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  margin: 0 0 12px;
  color: var(--navy);
}

.section-sub {
  text-align: center;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 28px;
}

/* Topbar */
.topbar {
  background: var(--navy);
  color: #fff;
  font-size: 0.85rem;
}
.topbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 8px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.topbar-btn {
  background: var(--gold);
  color: var(--navy);
  padding: 4px 14px;
  border-radius: 999px;
  font-weight: 700;
  white-space: nowrap;
}

/* Nav */
.nav {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-weight: 900;
  font-size: 1.2rem;
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo-img {
  height: 36px;
  width: auto;
}
.logo span {
  font-weight: 500;
  color: var(--text-muted);
  font-size: 0.85rem;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-weight: 500;
}
.nav-links a:hover { color: var(--red); text-decoration: underline; }

/* 導覽下拉選單 */
.nav-dropdown { position: relative; }
.nav-dropdown-trigger {
  background: none;
  border: none;
  font: inherit;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0;
}
.nav-dropdown-trigger .caret { font-size: 0.7em; transition: transform 0.15s; }
.nav-dropdown.open .nav-dropdown-trigger .caret { transform: rotate(180deg); }
.nav-dropdown-trigger:hover { color: var(--red); }
.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 10px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 10px 24px rgba(20,49,78,0.12);
  padding: 8px;
  min-width: 140px;
  z-index: 60;
}
.nav-dropdown.open .nav-dropdown-menu { display: block; }
.nav-dropdown-menu a {
  display: block;
  padding: 9px 12px;
  border-radius: 7px;
  color: var(--text);
  font-weight: 500;
  font-size: 0.92rem;
}
.nav-dropdown-menu a:hover { background: var(--bg-alt); color: var(--red); text-decoration: none; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--navy);
}

/* Hero */
.hero {
  position: relative;
  background-image: url("img/hero-bg.jpg");
  background-size: cover;
  background-position: center right;
  color: #fff;
  padding: 72px 24px 56px;
  text-align: left;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg,
    var(--navy) 0%,
    rgba(20,49,78,0.95) 32%,
    rgba(20,49,78,0.6) 56%,
    rgba(20,49,78,0.2) 78%,
    rgba(20,49,78,0.05) 100%);
  z-index: 0;
}
.hero-inner { max-width: var(--max-width); margin: 0 auto; position: relative; z-index: 1; }
.hero-text { max-width: 600px; }
.eyebrow {
  color: var(--gold-light);
  font-weight: 700;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  margin-bottom: 14px;
}
.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin: 0 0 20px;
}
.hero-desc {
  color: rgba(255,255,255,0.85);
  max-width: 520px;
  margin: 0 0 24px;
}
.hero-cta {
  display: flex;
  justify-content: flex-start;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.15s ease, opacity 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--gold); color: var(--navy); }
.btn-outline { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.6); }
.btn-light { background: #fff; color: var(--navy); }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 640px;
  text-align: left;
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 24px;
}
.stat strong { display: block; font-size: 1.15rem; color: var(--gold-light); }
.stat span { font-size: 0.8rem; color: rgba(255,255,255,0.75); }

/* Grids & Cards */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 20px;
  text-align: center;
}
.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin: 0 auto 16px;
}
.card h3 { margin: 0 0 8px; color: var(--navy); font-size: 1.05rem; }
.card p { margin: 0; color: var(--text-muted); font-size: 0.92rem; }
.tool-card { display: block; }
.tool-card:hover { border-color: var(--gold); }

.why, .tools {
  background: var(--bg-alt);
  box-shadow: 0 0 0 100vmax var(--bg-alt);
  clip-path: inset(0 -100vmax);
}

/* About */
.about { position: relative; overflow: hidden; }
.about-sketch {
  position: absolute;
  right: -60px;
  top: 50%;
  transform: translateY(-50%);
  width: 460px;
  max-width: 45%;
  pointer-events: none;
  z-index: 0;
}
.about-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 36px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.portrait-img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  object-position: top center;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.about-list { margin: 20px 0 28px; }
.about-list li { margin-bottom: 8px; color: var(--text-muted); }

/* Knowledge */
.post-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  display: block;
  overflow: hidden;
  transition: transform 0.15s ease;
}
.post-card:hover { transform: translateY(-3px); }
.post-thumb {
  width: 100%;
  aspect-ratio: 9/16;
  object-fit: cover;
  display: block;
}
.post-body { padding: 16px 20px 22px; }
.post-tag {
  display: inline-block;
  background: var(--accent2);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.post-tag-knowledge { background: var(--accent2); color: #ffffff; }
.post-tag-tour { background: var(--gold); color: var(--navy); }
.post-card h3 { margin: 0 0 8px; font-size: 1.02rem; color: var(--navy); }
.post-card p { margin: 0; font-size: 0.88rem; color: var(--text-muted); }
.knowledge-note {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 24px;
}

/* Article cards：大張橫式封面卡片，跟影片卡同款排版 */
.article-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
  background: var(--bg-alt);
}
.article-thumb.placeholder-block {
  border-bottom: 1px solid var(--border);
}

/* CTA banner */
.cta-banner {
  background: var(--gold);
  color: var(--navy);
  text-align: center;
  padding: 44px 24px;
}
.cta-banner h2 { margin: 0 0 12px; font-size: clamp(1.4rem, 3vw, 2rem); }
.cta-banner p { max-width: 520px; margin: 0 auto 20px; }

/* Footer */
.footer { background: var(--navy); color: rgba(255,255,255,0.85); padding: 40px 24px 24px; }
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 28px;
  padding-bottom: 24px;
}
.footer-col h4 { color: #fff; margin: 0 0 14px; }
.footer-col li { margin-bottom: 8px; font-size: 0.9rem; }
.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 20px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
}
.footer-legal { margin-top: 4px; }

/* Floating action bar */
.float-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  z-index: 60;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.12);
}
.float-btn {
  flex: 1;
  text-align: center;
  padding: 14px 8px;
  font-weight: 700;
  font-size: 0.88rem;
  color: #fff;
  background: var(--navy);
}
.float-line { background: #06c755; }
.float-call { background: var(--red); }

body { padding-bottom: 54px; }

/* Responsive */
@media (max-width: 860px) {
  .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .about-inner { grid-template-columns: 1fr; }
  .portrait-img { max-width: 280px; margin: 0 auto; }
  .footer-inner { grid-template-columns: 1fr; }
  .about-sketch { display: none; }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    gap: 16px;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .nav-dropdown { display: flex; flex-direction: column; align-items: center; }
  .nav-dropdown-trigger { justify-content: center; }
  .nav-dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    margin-top: 8px;
    padding: 0;
    text-align: center;
  }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .topbar-inner { font-size: 0.75rem; }
  .section { padding: 36px 16px; }
  .section-sub { margin-bottom: 20px; }
  .grid-4, .grid-3 { gap: 12px; }
  .card { padding: 16px 12px; }
  .post-body { padding: 12px 14px 16px; }
}