/* ===== 伊耐斯衛浴 — 全站共用樣式 ===== */
:root {
  --color-primary: #1b6b73;      /* 主色：沉穩水青 */
  --color-primary-dark: #124a50;
  --color-accent: #c9a24b;       /* 點綴金 */
  --color-ink: #1f2a2c;
  --color-body: #4a585b;
  --color-muted: #7b888b;
  --color-line: #e3e8e8;
  --color-bg: #ffffff;
  --color-bg-soft: #f5f8f8;
  --radius: 12px;
  --shadow: 0 8px 28px rgba(18, 74, 80, .10);
  --shadow-sm: 0 4px 14px rgba(18, 74, 80, .08);
  --container: 1180px;
  --gutter: clamp(1.2rem, 4vw, 3rem);
  --section-y: clamp(3.5rem, 8vw, 6rem);
  --font: "Helvetica Neue", "Segoe UI", "PingFang TC", "Microsoft JhengHei", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--color-body);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { color: var(--color-ink); line-height: 1.25; font-weight: 700; }

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

/* ---- 按鈕 ---- */
.btn {
  display: inline-block;
  font-size: 1rem;
  font-weight: 600;
  padding: .7em 1.6em;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: .25s ease;
  text-align: center;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.7); }
.btn-ghost:hover { background: #fff; color: var(--color-primary-dark); }
.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }

/* ---- Header / Nav ---- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-line);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-block: .9rem;
}
.brand { display: flex; align-items: center; gap: .6rem; font-weight: 800; font-size: 1.25rem; color: var(--color-primary-dark); }
.brand .mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: grid; place-items: center; color: #fff; font-size: 1.1rem; font-weight: 800;
}
.nav-links { display: flex; align-items: center; gap: 1.6rem; list-style: none; }
.nav-links a { font-weight: 500; color: var(--color-ink); position: relative; padding-block: .3rem; }
.nav-links a:hover, .nav-links a.active { color: var(--color-primary); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; bottom: -2px; width: 100%; height: 2px; background: var(--color-accent);
}
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; flex-direction: column; gap: 5px; padding: .4rem; }
.nav-toggle span { width: 26px; height: 2px; background: var(--color-ink); display: block; transition: .25s; }

/* ---- Hero ---- */
.hero {
  position: relative; color: #fff;
  background: linear-gradient(rgba(18,74,80,.62), rgba(18,74,80,.62)), var(--hero-img, linear-gradient(135deg,#1b6b73,#124a50));
  background-size: cover; background-position: center;
}
.hero .container { padding-block: clamp(4rem, 12vw, 8rem); }
.hero h1 { color: #fff; font-size: clamp(2rem, 5vw, 3.4rem); margin-bottom: 1rem; }
.hero p { font-size: clamp(1rem, 2.2vw, 1.25rem); max-width: 42ch; margin-bottom: 2rem; color: rgba(255,255,255,.92); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

/* 副標頁首 */
.page-hero {
  background: linear-gradient(rgba(18,74,80,.78), rgba(18,74,80,.78)), var(--hero-img, linear-gradient(135deg,#1b6b73,#124a50));
  background-size: cover; background-position: center; color: #fff; text-align: center;
}
.page-hero .container { padding-block: clamp(3rem, 8vw, 5rem); }
.page-hero h1 { color: #fff; font-size: clamp(1.8rem, 4vw, 2.8rem); }
.page-hero p { color: rgba(255,255,255,.9); margin-top: .6rem; }

/* ---- Section ---- */
.section { padding-block: var(--section-y); }
.section.soft { background: var(--color-bg-soft); }
.section-head { text-align: center; max-width: 60ch; margin: 0 auto clamp(2rem,5vw,3rem); }
.section-head .eyebrow { color: var(--color-accent); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; font-size: .8rem; }
.section-head h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); margin: .5rem 0; }
.section-head p { color: var(--color-muted); }

/* ---- Grid 卡片 ---- */
.grid { display: grid; gap: clamp(1.2rem, 3vw, 2rem); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.card {
  background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm); transition: .25s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card .media { aspect-ratio: 4/3; overflow: hidden; background: var(--color-bg-soft); }
.card .media img { width: 100%; height: 100%; object-fit: cover; transition: .4s; }
.card:hover .media img { transform: scale(1.05); }
.card .body { padding: 1.3rem 1.4rem 1.5rem; }
.card .body h3 { font-size: 1.2rem; margin-bottom: .5rem; }
.card .body p { color: var(--color-muted); font-size: .96rem; }

/* 特點小卡 */
.feature { text-align: center; padding: 1.8rem 1.4rem; background: #fff; border-radius: var(--radius); border: 1px solid var(--color-line); }
.feature .icon {
  width: 56px; height: 56px; border-radius: 14px; margin: 0 auto 1rem;
  display: grid; place-items: center; font-size: 1.5rem;
  background: var(--color-bg-soft); color: var(--color-primary);
}
.feature h3 { font-size: 1.1rem; margin-bottom: .5rem; }
.feature p { color: var(--color-muted); font-size: .95rem; }

/* ---- 圖文並排 ---- */
.split { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px,1fr)); gap: clamp(1.5rem,4vw,3rem); align-items: center; }
.split img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; }
.split h2 { font-size: clamp(1.5rem,3vw,2.1rem); margin-bottom: 1rem; }
.split p { margin-bottom: 1rem; }
.split ul { list-style: none; display: grid; gap: .6rem; margin-bottom: 1.5rem; }
.split li { padding-left: 1.6rem; position: relative; }
.split li::before { content: "✓"; position: absolute; left: 0; color: var(--color-accent); font-weight: 700; }

/* ---- 數據條 ---- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px,1fr)); gap: 1.5rem; text-align: center; }
.stats .num { font-size: clamp(2rem,5vw,2.8rem); font-weight: 800; color: var(--color-primary); }
.stats .label { color: var(--color-muted); font-size: .95rem; }

/* ---- CTA 區塊 ---- */
.cta { background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark)); color: #fff; text-align: center; border-radius: var(--radius); padding: clamp(2.5rem,6vw,4rem) var(--gutter); }
.cta h2 { color: #fff; font-size: clamp(1.6rem,3.5vw,2.3rem); margin-bottom: .8rem; }
.cta p { color: rgba(255,255,255,.9); margin-bottom: 1.8rem; }

/* ---- 表單 ---- */
.form { display: grid; gap: 1rem; max-width: 640px; }
.form .row { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 1rem; }
.form label { font-weight: 600; color: var(--color-ink); font-size: .92rem; display: block; margin-bottom: .35rem; }
.form input, .form textarea, .form select {
  width: 100%; padding: .8em 1em; border: 1px solid var(--color-line); border-radius: 10px;
  font: inherit; color: var(--color-ink); background: #fff;
}
.form input:focus, .form textarea:focus, .form select:focus { outline: 2px solid var(--color-primary); border-color: transparent; }
.info-list { list-style: none; display: grid; gap: 1.2rem; }
.info-list li { display: flex; gap: .9rem; align-items: flex-start; }
.info-list .ic { color: var(--color-primary); font-size: 1.2rem; }

/* ---- Footer ---- */
.site-footer { background: var(--color-ink); color: #cfd8d9; padding-block: clamp(2.5rem,6vw,4rem) 1.5rem; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap: 2rem; }
.site-footer h4 { color: #fff; margin-bottom: 1rem; font-size: 1.05rem; }
.site-footer a { color: #cfd8d9; }
.site-footer a:hover { color: #fff; }
.footer-links { list-style: none; display: grid; gap: .6rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 2.5rem; padding-top: 1.5rem; text-align: center; font-size: .88rem; color: #9aa7a8; }

/* ---- 麵包屑與通用 ---- */
.lead { font-size: 1.1rem; color: var(--color-body); }
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }

/* ---- RWD ---- */
@media (max-width: 820px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: #fff; border-bottom: 1px solid var(--color-line);
    padding: .5rem var(--gutter) 1rem; box-shadow: var(--shadow-sm);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: .8rem 0; width: 100%; border-bottom: 1px solid var(--color-line); }
  .nav-links li:last-child a { border-bottom: 0; }
  .nav-links .btn { margin-top: .6rem; }
}