/* 力豪室內OA系統櫥櫃 — 全站共用樣式 */
:root {
  --color-primary: #1f4d3f;        /* 深綠 — 沉穩木質專業感 */
  --color-primary-dark: #143229;
  --color-accent: #c8a15a;         /* 暖金 — 點綴 */
  --color-accent-dark: #a9863f;
  --color-text: #23292b;
  --color-muted: #5d6b66;
  --color-bg: #ffffff;
  --color-bg-soft: #f4f1ea;
  --color-border: #e3ddd2;
  --radius: 12px;
  --shadow: 0 6px 24px rgba(20, 50, 41, 0.08);
  --shadow-lg: 0 16px 48px rgba(20, 50, 41, 0.14);
  --container: 1160px;
  --gap: clamp(1rem, 3vw, 2.5rem);
  --pad-x: clamp(1.1rem, 5vw, 3rem);
  --font: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  font-size: clamp(15px, 1.6vw, 17px);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { line-height: 1.25; margin: 0 0 .6em; color: var(--color-primary-dark); }
h1 { font-size: clamp(1.9rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.35rem); }
p { margin: 0 0 1em; }

/* 容器 */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}
.section { padding-block: clamp(3rem, 8vw, 6rem); }
.section--soft { background: var(--color-bg-soft); }
.section__head { max-width: 640px; margin-bottom: clamp(1.8rem, 4vw, 3rem); }
.section__head.center { margin-inline: auto; text-align: center; }
.eyebrow {
  display: inline-block;
  color: var(--color-accent-dark);
  font-weight: 700;
  letter-spacing: .15em;
  font-size: .8rem;
  text-transform: uppercase;
  margin-bottom: .6rem;
}
.lead { color: var(--color-muted); font-size: 1.05em; }

/* 按鈕 */
.btn {
  display: inline-block;
  padding: .7em 1.6em;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform .15s ease, background .2s ease, color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-dark); }
.btn--accent { background: var(--color-accent); color: #2a2410; }
.btn--accent:hover { background: var(--color-accent-dark); }
.btn--ghost { background: transparent; border-color: rgba(255,255,255,.7); color: #fff; }
.btn--ghost:hover { background: rgba(255,255,255,.15); }
.btn--outline { background: transparent; border-color: var(--color-primary); color: var(--color-primary); }
.btn--outline:hover { background: var(--color-primary); color: #fff; }
.btn-row { display: flex; flex-wrap: wrap; gap: .9rem; }

/* Header / Nav */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 68px;
}
.brand { display: flex; align-items: center; gap: .6rem; font-weight: 800; color: var(--color-primary-dark); }
.brand__mark {
  width: 38px; height: 38px; border-radius: 10px; flex: none;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: grid; place-items: center; color: #fff; font-size: 1.1rem;
}
.brand__name { font-size: 1.05rem; line-height: 1.15; }
.brand__name small { display: block; font-size: .68rem; font-weight: 500; color: var(--color-muted); letter-spacing: .05em; }
.nav__links { display: flex; align-items: center; gap: clamp(.6rem, 2vw, 1.6rem); list-style: none; margin: 0; padding: 0; }
.nav__links a { font-weight: 600; color: var(--color-text); padding: .4em 0; position: relative; }
.nav__links a:hover, .nav__links a.active { color: var(--color-primary); }
.nav__links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--color-accent);
}
.nav__cta { margin-left: .4rem; }
.nav__toggle {
  display: none; background: none; border: 0; cursor: pointer;
  font-size: 1.6rem; color: var(--color-primary-dark); padding: .2rem .4rem;
}

/* Hero */
.hero {
  position: relative; color: #fff;
  background: linear-gradient(rgba(20,50,41,.62), rgba(20,50,41,.72)), var(--color-primary);
  background-size: cover; background-position: center;
}
.hero__inner { padding-block: clamp(4rem, 12vw, 8rem); max-width: 680px; }
.hero h1 { color: #fff; }
.hero p { color: rgba(255,255,255,.92); font-size: 1.1em; max-width: 40ch; }
.hero .eyebrow { color: var(--color-accent); }

/* 通用頁首橫幅(內頁) */
.page-hero {
  color: #fff; text-align: center;
  background: linear-gradient(rgba(20,50,41,.78), rgba(20,50,41,.85)), var(--color-primary);
  background-size: cover; background-position: center;
}
.page-hero__inner { padding-block: clamp(3rem, 9vw, 5.5rem); }
.page-hero h1 { color: #fff; }
.page-hero p { color: rgba(255,255,255,.9); max-width: 50ch; margin-inline: auto; }

/* Grid 卡片 */
.grid { display: grid; gap: var(--gap); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.card {
  background: #fff; border: 1px solid var(--color-border);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); transition: transform .2s ease, box-shadow .2s ease;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card__media { aspect-ratio: 4 / 3; overflow: hidden; background: var(--color-bg-soft); }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.card:hover .card__media img { transform: scale(1.05); }
.card__body { padding: 1.3rem 1.4rem 1.6rem; flex: 1; display: flex; flex-direction: column; }
.card__body h3 { margin-bottom: .4rem; }
.card__body p { color: var(--color-muted); margin-bottom: 1rem; }
.card__link { margin-top: auto; font-weight: 700; color: var(--color-primary); }
.card__link::after { content: " →"; }

/* 特色小方塊 */
.feature { text-align: left; }
.feature__icon {
  width: 52px; height: 52px; border-radius: 12px; margin-bottom: .9rem;
  display: grid; place-items: center; font-size: 1.5rem;
  background: var(--color-bg-soft); color: var(--color-primary);
}
.feature h3 { margin-bottom: .3rem; }
.feature p { color: var(--color-muted); margin: 0; }

/* 圖文交錯 */
.split { display: grid; gap: var(--gap); align-items: center; grid-template-columns: 1fr 1fr; }
.split__media img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); }
.split ul { padding-left: 1.1rem; color: var(--color-muted); }
.split li { margin-bottom: .4rem; }

/* 數據條 */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: var(--gap); text-align: center; }
.stat__num { font-size: clamp(2rem, 5vw, 2.8rem); font-weight: 800; color: var(--color-primary); }
.stat__label { color: var(--color-muted); font-size: .95rem; }

/* CTA */
.cta-band {
  color: #fff; text-align: center;
  background: linear-gradient(rgba(20,50,41,.86), rgba(20,50,41,.92)), var(--color-primary-dark);
  background-size: cover; background-position: center;
}
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.9); max-width: 46ch; margin-inline: auto 0; margin-inline: auto; }

/* 表單 */
.form { display: grid; gap: 1rem; max-width: 560px; }
.form label { font-weight: 600; display: block; margin-bottom: .35rem; }
.field input, .field textarea, .field select {
  width: 100%; padding: .75em .9em; border: 1px solid var(--color-border);
  border-radius: 10px; font: inherit; background: #fff; color: var(--color-text);
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: 2px solid var(--color-accent); border-color: var(--color-accent);
}
.info-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 1.1rem; }
.info-list li { display: flex; gap: .8rem; align-items: flex-start; }
.info-list .ic { font-size: 1.3rem; }
.info-list strong { display: block; color: var(--color-primary-dark); }
.info-list span { color: var(--color-muted); }

/* Footer */
.site-footer { background: var(--color-primary-dark); color: rgba(255,255,255,.82); padding-block: 3rem 1.5rem; }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: 1.4fr 1fr 1fr; }
.site-footer h4 { color: #fff; margin: 0 0 .9rem; font-size: 1rem; }
.site-footer a { color: rgba(255,255,255,.82); }
.site-footer a:hover { color: var(--color-accent); }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.15); margin-top: 2.4rem; padding-top: 1.2rem; font-size: .85rem; text-align: center; color: rgba(255,255,255,.6); }

/* RWD */
@media (max-width: 820px) {
  .split { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav__toggle { display: block; }
  .nav__links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: flex-start;
    background: #fff; border-bottom: 1px solid var(--color-border);
    padding: 1rem var(--pad-x); gap: .3rem;
    box-shadow: var(--shadow); display: none;
  }
  .nav__links.open { display: flex; }
  .nav__links a { width: 100%; padding: .6em 0; }
  .nav__cta { margin: .4rem 0 0; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .btn-row .btn { flex: 1 1 auto; text-align: center; }
}