/* =========================================================
   鈞佑科技有限公司 — 全站共用樣式
   設計變數集中於 :root，各頁沿用同一套 class，不另寫頁面專屬樣式
   ========================================================= */

:root {
  /* 色彩 */
  --c-primary: #0b4f8a;
  --c-primary-dark: #08355e;
  --c-primary-light: #e8f1fa;
  --c-accent: #f08a1c;
  --c-accent-dark: #d07210;
  --c-ink: #17212c;
  --c-text: #33404d;
  --c-muted: #5f6d7b;
  --c-bg: #ffffff;
  --c-bg-alt: #f3f6fa;
  --c-dark: #0a1a2b;
  --c-line: #dbe3ec;
  --c-on-dark: #e9f0f7;

  /* 字體 */
  --font-sans: "Noto Sans TC", "PingFang TC", "Heiti TC", "Microsoft JhengHei", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* 字級階層 */
  --fs-xs: .8125rem;
  --fs-sm: .9375rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: clamp(1.25rem, 1.1rem + .6vw, 1.5rem);
  --fs-xl: clamp(1.5rem, 1.2rem + 1.2vw, 2.125rem);
  --fs-2xl: clamp(1.875rem, 1.4rem + 2vw, 2.875rem);

  /* 版面 */
  --container: 1200px;
  --container-narrow: 860px;
  --gutter: clamp(1.125rem, 4vw, 2rem);
  --section-y: clamp(3.5rem, 7vw, 6rem);
  --header-h: 72px;

  /* 外觀 */
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(10, 26, 43, .08);
  --shadow: 0 10px 30px rgba(10, 26, 43, .10);
  --transition: .2s ease;
}

/* ---------- Reset / Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 1rem); }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.75;
  color: var(--c-text);
  background: var(--c-bg);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--c-primary-dark); }
h1, h2, h3, h4 { color: var(--c-ink); line-height: 1.35; margin: 0 0 .6em; font-weight: 700; }
h1 { font-size: var(--fs-2xl); }
h2 { font-size: var(--fs-xl); }
h3 { font-size: var(--fs-lg); }
h4 { font-size: var(--fs-md); }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; }
:focus-visible { outline: 3px solid var(--c-accent); outline-offset: 2px; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 1rem; top: -3rem; z-index: 200;
  background: var(--c-accent); color: #fff; padding: .5em 1em; border-radius: var(--radius-sm);
}
.skip-link:focus { top: 1rem; color: #fff; }

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

.section { padding-block: var(--section-y); }
.section--alt { background: var(--c-bg-alt); }
.section--dark { background: var(--c-dark); color: var(--c-on-dark); }
.section--dark h2, .section--dark h3 { color: #fff; }

.section-head { max-width: 720px; margin: 0 auto clamp(2rem, 4vw, 3rem); text-align: center; }
.section-head--left { margin-inline: 0; text-align: left; }
.eyebrow {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--c-primary);
  text-transform: uppercase;
  margin-bottom: .75rem;
}
.section--dark .eyebrow { color: var(--c-accent); }
.section-title { margin-bottom: .5em; }
.section-desc { color: var(--c-muted); font-size: var(--fs-md); margin: 0; }
.section--dark .section-desc { color: var(--c-on-dark); opacity: .85; }

.grid { display: grid; gap: clamp(1.25rem, 2.5vw, 2rem); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr)); }

.text-center { text-align: center; }
.mt-lg { margin-top: clamp(2rem, 4vw, 3rem); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: .7em 1.5em;
  font-size: var(--fs-base);
  font-weight: 700;
  line-height: 1.4;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--c-primary); color: #fff; }
.btn--primary:hover { background: var(--c-primary-dark); color: #fff; }
.btn--accent { background: var(--c-accent); color: #fff; }
.btn--accent:hover { background: var(--c-accent-dark); color: #fff; }
.btn--outline { border-color: var(--c-primary); color: var(--c-primary); background: transparent; }
.btn--outline:hover { background: var(--c-primary); color: #fff; }
.btn--ghost { border-color: rgba(255, 255, 255, .75); color: #fff; background: transparent; }
.btn--ghost:hover { background: #fff; color: var(--c-primary-dark); }
.btn-group { display: flex; flex-wrap: wrap; gap: .875rem; }
.btn-group--center { justify-content: center; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--c-line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  min-height: var(--header-h);
}
.brand { display: inline-flex; align-items: center; gap: .65rem; color: var(--c-ink); }
.brand:hover { color: var(--c-ink); }
.brand-mark {
  display: grid; place-items: center;
  width: 2.5rem; height: 2.5rem; flex: none;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  color: #fff; font-weight: 800; font-size: 1.125rem;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-weight: 800; font-size: 1.0625rem; letter-spacing: .02em; }
.brand-sub { font-size: .6875rem; color: var(--c-muted); letter-spacing: .08em; }

.site-nav { display: flex; align-items: center; }
.nav-list { list-style: none; display: flex; align-items: center; gap: .25rem; }
.nav-link {
  display: block; padding: .5em .8em; border-radius: var(--radius-sm);
  color: var(--c-ink); font-weight: 500; font-size: var(--fs-sm);
}
.nav-link:hover { color: var(--c-primary); background: var(--c-primary-light); }
.nav-link.is-active { color: var(--c-primary); font-weight: 700; }
.nav-list .btn { margin-left: .5rem; padding: .55em 1.25em; font-size: var(--fs-sm); }

.nav-toggle {
  display: none;
  width: 2.75rem; height: 2.75rem; padding: 0;
  border: 1px solid var(--c-line); border-radius: var(--radius-sm);
  background: #fff; cursor: pointer;
  align-items: center; justify-content: center;
}
.nav-toggle-bar, .nav-toggle-bar::before, .nav-toggle-bar::after {
  display: block; width: 1.25rem; height: 2px; background: var(--c-ink);
  border-radius: 2px; position: relative; transition: transform var(--transition), background var(--transition);
}
.nav-toggle-bar::before, .nav-toggle-bar::after { content: ""; position: absolute; left: 0; }
.nav-toggle-bar::before { top: -6px; }
.nav-toggle-bar::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 1080px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute; left: 0; right: 0; top: 100%;
    background: #fff; border-bottom: 1px solid var(--c-line); box-shadow: var(--shadow);
    display: none;
  }
  .site-nav.is-open { display: block; }
  .nav-list {
    flex-direction: column; align-items: stretch; gap: 0;
    max-width: var(--container); margin-inline: auto;
    padding: .5rem var(--gutter) 1.25rem;
  }
  .nav-link { padding: .85em .5em; border-bottom: 1px solid var(--c-line); border-radius: 0; font-size: var(--fs-base); }
  .nav-list .btn { margin: 1rem 0 0; }
}

/* ---------- Home hero ---------- */
.hero {
  position: relative;
  min-height: clamp(30rem, 78vh, 44rem);
  display: flex; align-items: center;
  color: #fff;
  background: var(--c-dark) url("../images2/hero-bg.jpg") center right / cover no-repeat;
  isolation: isolate;
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, rgba(6, 18, 32, .92) 0%, rgba(6, 18, 32, .78) 45%, rgba(6, 18, 32, .25) 100%);
}
.hero-inner { padding-block: clamp(3.5rem, 8vw, 6rem); }
.hero-content { max-width: 40rem; }
.hero-eyebrow {
  display: inline-block; margin-bottom: 1.25rem;
  padding: .35em 1em; border-radius: 999px;
  background: rgba(240, 138, 28, .16); border: 1px solid rgba(240, 138, 28, .55);
  color: #ffc58a; font-size: var(--fs-xs); font-weight: 700; letter-spacing: .1em;
}
.hero-title { color: #fff; font-size: var(--fs-2xl); margin-bottom: .5em; }
.hero-lead { font-size: var(--fs-md); color: var(--c-on-dark); opacity: .92; margin-bottom: 2rem; max-width: 34rem; }
.hero-points { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; margin-top: 2rem; font-size: var(--fs-sm); color: var(--c-on-dark); }
.hero-points li { display: inline-flex; align-items: center; gap: .45em; }
.hero-points li::before { content: ""; width: .5rem; height: .5rem; border-radius: 50%; background: var(--c-accent); }

@media (max-width: 720px) {
  .hero { background-position: 70% center; }
  .hero::before { background: linear-gradient(180deg, rgba(6, 18, 32, .78), rgba(6, 18, 32, .9)); }
}

/* ---------- Sub-page hero ---------- */
.page-hero {
  position: relative;
  color: #fff;
  background-color: var(--c-dark);
  background-position: center; background-size: cover; background-repeat: no-repeat;
  isolation: isolate;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, rgba(6, 18, 32, .9) 0%, rgba(6, 18, 32, .7) 55%, rgba(6, 18, 32, .45) 100%);
}
.page-hero-inner { padding-block: clamp(3.5rem, 8vw, 5.5rem); max-width: var(--container); }
.page-hero-title { color: #fff; font-size: var(--fs-2xl); margin-bottom: .4em; }
.page-hero-lead { max-width: 40rem; font-size: var(--fs-md); color: var(--c-on-dark); opacity: .92; margin: 0; }
.page-hero--about { background-image: url("../images2/about-team.jpg"); background-position: center 30%; }
.page-hero--custom { background-image: url("../images2/custom-automation.jpg"); }
.page-hero--sleeve { background-image: url("../images2/sleeve-labeler.jpg"); }
.page-hero--print { background-image: url("../images2/print-apply.jpg"); }
.page-hero--contact { background-image: url("../images2/cta-bg.jpg"); }

.breadcrumb { margin-bottom: 1rem; font-size: var(--fs-xs); }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; }
.breadcrumb li { color: var(--c-on-dark); opacity: .85; }
.breadcrumb li + li::before { content: "/"; margin-right: .4rem; opacity: .6; }
.breadcrumb a { color: #fff; }
.breadcrumb a:hover { color: #ffc58a; }

/* ---------- Cards ---------- */
.card {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.card-media { aspect-ratio: 3 / 2; overflow: hidden; background: var(--c-bg-alt); }
.card-media img { width: 100%; height: 100%; object-fit: cover; }
.card-body { display: flex; flex-direction: column; flex: 1; padding: clamp(1.25rem, 2.5vw, 1.75rem); }
.card-title { font-size: var(--fs-lg); margin-bottom: .4em; }
.card-text { color: var(--c-muted); flex: 1; }
.card-link { font-weight: 700; display: inline-flex; align-items: center; gap: .35em; margin-top: .5rem; }
.card-link::after { content: "→"; transition: transform var(--transition); }
.card-link:hover::after { transform: translateX(3px); }

/* ---------- Features (icon blocks) ---------- */
.feature {
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
}
.section--alt .feature { border-color: transparent; box-shadow: var(--shadow-sm); }
.section--dark .feature { background: rgba(255, 255, 255, .05); border-color: rgba(255, 255, 255, .12); }
.feature-icon {
  display: grid; place-items: center;
  width: 3rem; height: 3rem; margin-bottom: 1rem;
  border-radius: 10px; background: var(--c-primary-light); color: var(--c-primary);
}
.section--dark .feature-icon { background: rgba(240, 138, 28, .15); color: var(--c-accent); }
.feature-icon svg { width: 1.5rem; height: 1.5rem; }
.feature-title { font-size: var(--fs-md); margin-bottom: .35em; }
.feature-text { color: var(--c-muted); font-size: var(--fs-sm); margin: 0; }
.section--dark .feature-text { color: var(--c-on-dark); opacity: .8; }

/* ---------- Split (image + text) ---------- */
.split {
  display: grid; align-items: center;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 5vw, 4rem);
}
.split + .split { margin-top: var(--section-y); }
.split--reverse .split-media { order: 2; }
.split-media img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); aspect-ratio: 3 / 2; object-fit: cover; }
.split-body > :last-child { margin-bottom: 0; }
@media (max-width: 860px) {
  .split { grid-template-columns: 1fr; }
  .split--reverse .split-media { order: 0; }
}

/* ---------- Lists ---------- */
.check-list { list-style: none; display: grid; gap: .65rem; margin: 1.25rem 0 1.5rem; }
.check-list li { position: relative; padding-left: 1.85rem; }
.check-list li::before {
  content: ""; position: absolute; left: 0; top: .3em;
  width: 1.2rem; height: 1.2rem; border-radius: 50%;
  background: var(--c-primary) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / .7rem no-repeat;
}
.check-list--2col { grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr)); }

.tag-list { list-style: none; display: flex; flex-wrap: wrap; gap: .6rem; }
.tag-list--center { justify-content: center; max-width: var(--container-narrow); margin-inline: auto; }
.tag {
  display: inline-block; padding: .4em 1em; border-radius: 999px;
  background: var(--c-primary-light); color: var(--c-primary-dark);
  font-size: var(--fs-sm); font-weight: 500;
}

/* ---------- Steps (process) ---------- */
.steps {
  list-style: none; counter-reset: step;
  display: grid; gap: clamp(1rem, 2vw, 1.5rem);
  grid-template-columns: 1fr;
}
@media (min-width: 560px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 900px) { .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 1100px) {
  .steps { grid-template-columns: none; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); }
  /* 7 步以上改為每列 4 格，避免卡片過窄 */
  .steps:has(> .step:nth-child(7)) { grid-auto-flow: row; grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.step {
  counter-increment: step;
  position: relative;
  padding: 1.5rem 1.25rem 1.25rem;
  background: #fff; border-radius: var(--radius); border-top: 4px solid var(--c-primary);
  box-shadow: var(--shadow-sm);
}
.step::before {
  content: counter(step, decimal-leading-zero);
  display: block; margin-bottom: .5rem;
  font-size: 1.5rem; font-weight: 800; color: var(--c-accent); line-height: 1;
}
.step-title { font-size: var(--fs-md); margin-bottom: .35em; }
.step-text { color: var(--c-muted); font-size: var(--fs-sm); margin: 0; }

/* ---------- Spec table ---------- */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--c-line); background: #fff; }
.spec-table { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
.spec-table th, .spec-table td { padding: .9rem 1.25rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--c-line); }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.spec-table th { width: 30%; min-width: 8rem; background: var(--c-bg-alt); color: var(--c-ink); font-weight: 700; }
.table-note { margin-top: .75rem; font-size: var(--fs-xs); color: var(--c-muted); }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: .75rem; max-width: var(--container-narrow); margin-inline: auto; }
.faq-item { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); }
.faq-item summary {
  list-style: none; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: 1.1rem 1.25rem; font-weight: 700; color: var(--c-ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.4rem; line-height: 1; color: var(--c-primary); transition: transform var(--transition); }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-answer { padding: 0 1.25rem 1.25rem; color: var(--c-muted); }
.faq-answer p:last-child { margin-bottom: 0; }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative; isolation: isolate; color: #fff; text-align: center;
  background: var(--c-dark) url("../images2/cta-bg.jpg") center / cover no-repeat;
}
.cta-band::before { content: ""; position: absolute; inset: 0; z-index: -1; background: rgba(6, 22, 40, .82); }
.cta-inner { padding-block: clamp(3.5rem, 7vw, 5rem); max-width: 780px; }
.cta-title { color: #fff; font-size: var(--fs-xl); margin-bottom: .5em; }
.cta-text { color: var(--c-on-dark); opacity: .9; font-size: var(--fs-md); margin-bottom: 1.75rem; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid; gap: clamp(2rem, 4vw, 3rem);
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
  align-items: start;
}
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
.info-card {
  padding: clamp(1.5rem, 3vw, 2rem);
  background: var(--c-primary-dark); color: var(--c-on-dark); border-radius: var(--radius);
}
.info-card h2, .info-card h3 { color: #fff; }
.info-list { list-style: none; display: grid; gap: 1rem; margin: 1.25rem 0 0; }
.info-list li { display: grid; grid-template-columns: 1.5rem 1fr; gap: .75rem; align-items: start; }
.info-list svg { width: 1.25rem; height: 1.25rem; margin-top: .25em; color: var(--c-accent); }
.info-list strong { display: block; color: #fff; font-size: var(--fs-sm); }

.form { display: grid; gap: 1.1rem; padding: clamp(1.5rem, 3vw, 2.25rem); background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.form-row { display: grid; gap: 1.1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); }
.form-field { display: grid; gap: .4rem; }
.form-field label { font-weight: 700; font-size: var(--fs-sm); color: var(--c-ink); }
.form-field .req { color: var(--c-accent-dark); margin-left: .15em; }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; padding: .75em .9em;
  font: inherit; font-size: var(--fs-base); color: var(--c-ink);
  border: 1px solid var(--c-line); border-radius: var(--radius-sm); background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-field textarea { min-height: 9rem; resize: vertical; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(11, 79, 138, .15);
}
.form-note { font-size: var(--fs-xs); color: var(--c-muted); margin: 0; }
.form-status { margin: 0; padding: .9rem 1.1rem; border-radius: var(--radius-sm); background: var(--c-primary-light); color: var(--c-primary-dark); font-size: var(--fs-sm); }
.form-status[hidden] { display: none; }

/* ---------- Footer ---------- */
.site-footer { background: var(--c-dark); color: var(--c-on-dark); font-size: var(--fs-sm); }
.footer-grid {
  display: grid; gap: 2rem;
  grid-template-columns: minmax(0, 1.6fr) repeat(2, minmax(0, 1fr));
  padding-block: clamp(3rem, 6vw, 4rem);
}
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand .brand { color: #fff; }
.footer-brand .brand-sub { color: var(--c-on-dark); opacity: .7; }
.footer-about { margin: 1rem 0 0; opacity: .8; max-width: 26rem; }
.footer-title { color: #fff; font-size: var(--fs-base); margin-bottom: 1rem; }
.footer-links { list-style: none; display: grid; gap: .5rem; }
.footer-links a { color: var(--c-on-dark); opacity: .8; }
.footer-links a:hover { color: #fff; opacity: 1; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding-block: 1.25rem; font-size: var(--fs-xs); opacity: .7; }
.footer-bottom p { margin: 0; }

/* ---------- Motion preference ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}