/* ============================================================
   和衡 Balance — 全站共用樣式
   理念網站：在企業中讓每個人的生活與工作取得平衡
   ============================================================ */

:root {
  /* 配色：沉穩青綠 + 暖米，傳達平衡、自然、安定 */
  --color-primary: #2f7d72;
  --color-primary-dark: #1f5a52;
  --color-primary-light: #5aa99c;
  --color-accent: #e0915a;
  --color-bg: #fbfaf6;
  --color-surface: #ffffff;
  --color-surface-alt: #f1f0e8;
  --color-text: #283330;
  --color-text-soft: #5c6764;
  --color-border: #e3e1d6;

  --font-sans: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;

  --maxw: 1120px;
  --pad-inline: clamp(1.25rem, 5vw, 4rem);
  --radius: 14px;
  --radius-lg: 24px;
  --shadow: 0 12px 32px rgba(31, 90, 82, 0.10);
  --shadow-sm: 0 4px 14px rgba(31, 90, 82, 0.08);
  --transition: 0.25s ease;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-dark); }

h1, h2, h3 { line-height: 1.25; font-weight: 700; color: var(--color-text); }
h1 { font-size: clamp(2rem, 5vw, 3.1rem); }
h2 { font-size: clamp(1.55rem, 3.5vw, 2.3rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem); }
p  { color: var(--color-text-soft); }

/* ---------- 容器 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad-inline);
}

.section { padding-block: clamp(3.5rem, 8vw, 6rem); }
.section-alt { background: var(--color-surface-alt); }

.eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.section-head { max-width: 640px; margin-bottom: 2.75rem; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head p { margin-top: 0.85rem; font-size: 1.05rem; }

/* ---------- 按鈕 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.75em 1.6em;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--color-primary); border-color: var(--color-primary-light); }
.btn-ghost:hover { background: var(--color-primary); color: #fff; }
.btn-group { display: flex; flex-wrap: wrap; gap: 1rem; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(251, 250, 246, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-block: 1rem;
}
.brand { display: flex; align-items: center; gap: 0.6rem; font-weight: 800; font-size: 1.2rem; color: var(--color-text); }
.brand .mark {
  width: 38px; height: 38px; border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: grid; place-items: center; color: #fff; font-size: 1.05rem; font-weight: 700;
}
.brand small { display: block; font-size: 0.7rem; font-weight: 500; letter-spacing: 0.2em; color: var(--color-text-soft); }
.nav-links { display: flex; align-items: center; gap: 1.75rem; list-style: none; }
.nav-links a { color: var(--color-text); font-weight: 500; font-size: 0.98rem; }
.nav-links a:hover, .nav-links a.active { color: var(--color-primary); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; font-size: 1.6rem; color: var(--color-text); }

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0.5rem var(--pad-inline) 1.25rem;
    box-shadow: var(--shadow-sm);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 0.7rem 0; width: 100%; border-bottom: 1px solid var(--color-border); }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  color: #fff;
  background: linear-gradient(rgba(20, 54, 49, 0.55), rgba(20, 54, 49, 0.65)), var(--hero-img, none) center/cover no-repeat;
  background-color: var(--color-primary-dark);
}
.hero .container { padding-block: clamp(4rem, 12vw, 8rem); }
.hero-inner { max-width: 680px; }
.hero h1 { color: #fff; }
.hero p { color: rgba(255,255,255,0.92); font-size: clamp(1.05rem, 2.2vw, 1.3rem); margin-top: 1.1rem; }
.hero .btn-group { margin-top: 2rem; }
.hero .btn-ghost { color: #fff; border-color: rgba(255,255,255,0.6); }
.hero .btn-ghost:hover { background: #fff; color: var(--color-primary-dark); }

/* 內頁 page banner */
.page-banner { background: var(--color-surface-alt); border-bottom: 1px solid var(--color-border); }
.page-banner .container { padding-block: clamp(2.75rem, 7vw, 4.5rem); }
.page-banner .eyebrow { margin-bottom: 0.5rem; }
.page-banner p { margin-top: 0.6rem; max-width: 620px; font-size: 1.08rem; }

/* ---------- Grid 卡片 ---------- */
.grid { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card .icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--color-surface-alt); color: var(--color-primary);
  display: grid; place-items: center; font-size: 1.5rem; margin-bottom: 1rem;
}
.card h3 { margin-bottom: 0.5rem; }
.card p { font-size: 0.97rem; }

/* ---------- Split 圖文 ---------- */
.split { display: grid; gap: clamp(2rem, 5vw, 4rem); align-items: center; grid-template-columns: 1fr 1fr; }
.split.reverse .split-media { order: 2; }
.split-media img { border-radius: var(--radius-lg); box-shadow: var(--shadow); width: 100%; object-fit: cover; }
.split-body h2 { margin-bottom: 1rem; }
.split-body p + p { margin-top: 1rem; }
@media (max-width: 760px) {
  .split { grid-template-columns: 1fr; }
  .split.reverse .split-media { order: 0; }
}

/* ---------- 數據 / 價值 ---------- */
.stats { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); text-align: center; }
.stat .num { font-size: clamp(2.2rem, 5vw, 3rem); font-weight: 800; color: var(--color-primary); }
.stat .label { color: var(--color-text-soft); font-size: 0.95rem; }

/* ---------- 步驟列表 ---------- */
.steps { display: grid; gap: 1.5rem; counter-reset: step; }
.step {
  display: flex; gap: 1.25rem; align-items: flex-start;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); padding: 1.5rem;
}
.step .step-num {
  flex: none; width: 44px; height: 44px; border-radius: 50%;
  background: var(--color-primary); color: #fff; font-weight: 700;
  display: grid; place-items: center;
}
.step h3 { margin-bottom: 0.35rem; }
.step p { font-size: 0.97rem; }

/* ---------- 引言 ---------- */
.quote {
  max-width: 760px; margin-inline: auto; text-align: center;
  font-size: clamp(1.3rem, 3vw, 1.8rem); font-weight: 600; line-height: 1.5; color: var(--color-text);
}
.quote .cite { display: block; margin-top: 1.25rem; font-size: 1rem; font-weight: 500; color: var(--color-text-soft); }

/* ---------- CTA 區 ---------- */
.cta {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff; border-radius: var(--radius-lg); text-align: center;
  padding: clamp(2.5rem, 6vw, 4rem) var(--pad-inline);
}
.cta h2 { color: #fff; }
.cta p { color: rgba(255,255,255,0.9); margin-top: 0.75rem; max-width: 540px; margin-inline: auto; }
.cta .btn-group { justify-content: center; margin-top: 1.75rem; }
.cta .btn-primary { background: #fff; color: var(--color-primary-dark); }
.cta .btn-primary:hover { background: var(--color-surface-alt); color: var(--color-primary-dark); }

/* ---------- 表單 ---------- */
.form { display: grid; gap: 1.1rem; max-width: 560px; }
.field { display: grid; gap: 0.4rem; }
.field label { font-weight: 600; font-size: 0.95rem; }
.field input, .field textarea, .field select {
  width: 100%; padding: 0.75em 0.9em; font: inherit;
  border: 1px solid var(--color-border); border-radius: 10px;
  background: var(--color-surface); color: var(--color-text);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: 2px solid var(--color-primary-light); border-color: var(--color-primary);
}
.contact-grid { display: grid; gap: clamp(2rem,5vw,3.5rem); grid-template-columns: 1fr 1fr; align-items: start; }
@media (max-width: 760px) { .contact-grid { grid-template-columns: 1fr; } }
.info-list { list-style: none; display: grid; gap: 1.25rem; }
.info-list li { display: flex; gap: 0.85rem; align-items: flex-start; }
.info-list .ico { color: var(--color-primary); font-size: 1.3rem; }

/* ---------- Footer ---------- */
.site-footer { background: #1c2624; color: #cfd6d3; padding-block: 3rem 1.5rem; margin-top: 0; }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: 1.5fr 1fr 1fr; }
.site-footer h4 { color: #fff; margin-bottom: 0.9rem; font-size: 1rem; }
.site-footer a { color: #cfd6d3; }
.site-footer a:hover { color: #fff; }
.footer-links { list-style: none; display: grid; gap: 0.5rem; }
.site-footer .brand { color: #fff; }
.site-footer .brand small { color: #9fa9a6; }
.footer-about { color: #aab4b1; font-size: 0.95rem; margin-top: 0.85rem; max-width: 32ch; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12); margin-top: 2.25rem; padding-top: 1.25rem;
  font-size: 0.88rem; color: #9fa9a6; text-align: center;
}
@media (max-width: 680px) { .footer-grid { grid-template-columns: 1fr; } }

/* utility */
.text-center { text-align: center; }
.mt-2 { margin-top: 1.25rem; }