/* ==========================================================
   成功專利商標事務所 Success Patent & Trademark Office
   全站共用樣式
   ========================================================== */

:root {
  --navy: #1e2d4f;
  --navy-deep: #16233f;
  --navy-ink: #101a30;
  --gold: #b08d57;
  --gold-soft: #cfb383;
  --gold-pale: #f0e7d8;
  --paper: #faf8f4;
  --mist: #eef0f3;
  --line: #dfe3e9;
  --text: #2a3448;
  --muted: #5c677d;
  --white: #ffffff;
  --radius: 10px;
  --shadow: 0 6px 24px rgba(22, 35, 63, 0.08);
  --shadow-lg: 0 14px 40px rgba(22, 35, 63, 0.14);
  --font-sans: "Noto Sans TC", "Inter", "PingFang TC", "Microsoft JhengHei", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--white);
  line-height: 1.85;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--navy); text-decoration: none; }
a:hover { color: var(--gold); }

.container {
  width: min(1140px, 92%);
  margin: 0 auto;
}

.container-narrow {
  width: min(860px, 92%);
  margin: 0 auto;
}

/* ---------- 按鈕 ---------- */
.btn {
  display: inline-block;
  padding: 0.7rem 1.7rem;
  border-radius: 6px;
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  transition: all 0.25s ease;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary {
  background: var(--navy);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--navy-deep);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline:hover {
  background: var(--navy);
  color: var(--white);
}
.btn-light {
  background: var(--white);
  color: var(--navy);
}
.btn-light:hover {
  background: var(--gold-pale);
  color: var(--navy-deep);
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.55);
}
.btn-ghost:hover {
  border-color: var(--gold-soft);
  color: var(--gold-soft);
}
.btn-gold {
  background: var(--gold);
  color: var(--white);
}
.btn-gold:hover {
  background: #9a7a48;
  color: var(--white);
  transform: translateY(-2px);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--line);
}
/* 毛玻璃背景放在偽元素上：backdrop-filter 若放在 header 本體，
   會使子層 position:fixed 的手機選單改以 header 為定位基準而失效 */
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(255, 255, 255, 0.96);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}
.brand-mark {
  width: 46px;
  height: 46px;
  display: block;
  flex-shrink: 0;
}
.brand-text { line-height: 1.25; }
.brand-text strong {
  display: block;
  font-size: 1.02rem;
  color: var(--navy-ink);
  letter-spacing: 0.05em;
}
.brand-text small {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.62rem;
  font-weight: 600;
  color: #55617a;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}
.brand-text small::before {
  content: "";
  width: 16px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
  flex-shrink: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.15rem;
}
.site-nav > a,
.nav-drop > .drop-toggle {
  white-space: nowrap;
  font-size: 0.9rem;
  color: var(--text);
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 0.4rem 0;
  border-bottom: 2px solid transparent;
}
.site-nav > a:hover,
.nav-drop > .drop-toggle:hover {
  color: var(--gold);
}
.site-nav > a.active,
.nav-drop > .drop-toggle.active {
  color: var(--navy);
  border-bottom-color: var(--gold);
}
.site-nav .nav-cta {
  background: var(--navy);
  color: var(--white);
  padding: 0.5rem 1.2rem;
  border-radius: 6px;
  border-bottom: none;
}
.site-nav .nav-cta:hover {
  background: var(--gold);
  color: var(--white);
}
.site-nav > a.nav-cta.active {
  color: var(--white);
  border-bottom: none;
}
.site-nav .lang-switch {
  font-size: 0.78rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.28rem 0.85rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--line);
}
.site-nav .lang-switch:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* 下拉選單 */
.nav-drop { position: relative; }
.drop-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  min-width: 170px;
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
}
.nav-drop:hover .drop-menu,
.nav-drop:focus-within .drop-menu,
.nav-drop.open .drop-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.drop-menu a {
  display: block;
  padding: 0.5rem 1.2rem;
  font-size: 0.9rem;
  color: var(--text);
}
.drop-menu a:hover {
  background: var(--paper);
  color: var(--gold);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--navy);
  transition: all 0.3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero（首頁） ---------- */
.hero {
  background: linear-gradient(135deg, rgba(16, 26, 48, 0.96) 0%, rgba(30, 45, 79, 0.92) 55%, rgba(30, 45, 79, 0.85) 100%);
  background-color: var(--navy-deep);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(207, 179, 131, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(207, 179, 131, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.hero-inner {
  position: relative;
  padding: 7rem 0 6.5rem;
  max-width: 780px;
}
.hero .eyebrow { color: var(--gold-soft); }
.hero h1 {
  font-size: clamp(1.6rem, 3.6vw, 2.4rem);
  line-height: 1.5;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 1.4rem;
}
.hero p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 2.2rem;
  max-width: 620px;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ---------- 子頁 Hero ---------- */
.page-hero {
  background: linear-gradient(135deg, var(--navy-ink) 0%, var(--navy) 100%);
  color: var(--white);
  padding: 4.2rem 0 3.6rem;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 320px;
  height: 320px;
  border: 1px solid rgba(207, 179, 131, 0.25);
  border-radius: 50%;
  pointer-events: none;
}
.page-hero::before {
  content: "";
  position: absolute;
  right: 40px;
  top: 40px;
  width: 200px;
  height: 200px;
  border: 1px solid rgba(207, 179, 131, 0.18);
  border-radius: 50%;
  pointer-events: none;
}
.page-hero h1 {
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 0.8rem;
}
.page-hero p {
  color: rgba(255, 255, 255, 0.8);
  max-width: 640px;
  font-size: 1rem;
}
.breadcrumb {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 1.2rem;
  letter-spacing: 0.04em;
}
.breadcrumb a { color: rgba(255, 255, 255, 0.75); }
.breadcrumb a:hover { color: var(--gold-soft); }

/* ---------- Section 通用 ---------- */
.section { padding: 4.5rem 0; }
.section-alt { background: var(--paper); }
.section-navy {
  background: var(--navy-deep);
  color: var(--white);
}
.section-navy h2 { color: var(--white); }
.section-navy p { color: rgba(255, 255, 255, 0.82); }

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.section-head { margin-bottom: 2.6rem; }
.section-head.center { text-align: center; }
.section-head h2 {
  font-size: clamp(1.4rem, 2.6vw, 1.85rem);
  color: var(--navy-ink);
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 0.9rem;
}
.section-head p {
  color: var(--muted);
  max-width: 720px;
}
.section-head.center p { margin: 0 auto; }

/* ---------- 卡片 ---------- */
.cards {
  display: grid;
  gap: 1.5rem;
}
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.cards-2 { grid-template-columns: repeat(2, 1fr); }
.cards-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.8rem 1.6rem;
  transition: all 0.25s ease;
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--gold-soft);
}
.card h3 {
  font-size: 1.08rem;
  color: var(--navy-ink);
  margin-bottom: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.card p {
  font-size: 0.92rem;
  color: var(--muted);
}
.card .card-link {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--gold);
}
.card .card-link:hover { color: var(--navy); }

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--gold-pale);
  color: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.1rem;
  font-size: 1.3rem;
}

/* ---------- 服務清單卡 ---------- */
.service-block { margin-bottom: 3.2rem; }
.service-block:last-child { margin-bottom: 0; }
.service-block > h3 {
  font-size: 1.25rem;
  color: var(--navy-ink);
  padding-left: 0.9rem;
  border-left: 4px solid var(--gold);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}

.feature-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem 2rem;
}
.feature-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.95rem;
  color: var(--text);
}
.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--gold);
}

/* ---------- 產業領域 ---------- */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}
.tag {
  padding: 0.45rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.88rem;
  color: var(--text);
  background: var(--white);
  transition: all 0.2s ease;
}
.tag:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* ---------- 流程 timeline ---------- */
.timeline {
  list-style: none;
  counter-reset: step;
  position: relative;
}
.timeline li {
  position: relative;
  padding: 0 0 2rem 3.6rem;
  counter-increment: step;
}
.timeline li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  background: var(--navy);
  color: var(--gold-soft);
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.timeline li::after {
  content: "";
  position: absolute;
  left: 1.2rem;
  top: 2.6rem;
  bottom: 0.2rem;
  width: 1px;
  background: var(--line);
}
.timeline li:last-child { padding-bottom: 0; }
.timeline li:last-child::after { display: none; }
.timeline h4 {
  font-size: 1rem;
  color: var(--navy-ink);
  margin-bottom: 0.25rem;
  letter-spacing: 0.04em;
}
.timeline p {
  font-size: 0.92rem;
  color: var(--muted);
}

/* 首頁簡化流程 */
.process-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
}
.process-step {
  text-align: center;
  padding: 1.4rem 0.8rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.process-step .num {
  display: inline-flex;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 50%;
  background: var(--gold-pale);
  color: var(--navy);
  font-weight: 700;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.7rem;
  font-size: 0.9rem;
}
.process-step h4 {
  font-size: 0.95rem;
  color: var(--navy-ink);
  margin-bottom: 0.3rem;
}
.process-step p {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ---------- 團隊 ---------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.team-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.8rem;
  display: flex;
  gap: 1.4rem;
  align-items: flex-start;
  transition: all 0.25s ease;
}
.team-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--gold-soft);
}
.avatar {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-deep) 100%);
  color: var(--gold-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 700;
  border: 2px solid var(--gold-pale);
}
.team-card .info h3 {
  font-size: 1.05rem;
  color: var(--navy-ink);
  letter-spacing: 0.04em;
}
.team-card .info .en-name {
  font-size: 0.82rem;
  color: var(--gold);
  letter-spacing: 0.06em;
  margin-bottom: 0.15rem;
}
.team-card .info .role {
  display: inline-block;
  font-size: 0.78rem;
  color: var(--navy);
  background: var(--gold-pale);
  border-radius: 4px;
  padding: 0.1rem 0.6rem;
  margin: 0.35rem 0 0.7rem;
  letter-spacing: 0.05em;
}
.team-card .info p {
  font-size: 0.9rem;
  color: var(--muted);
}

/* 首頁團隊摘要 */
.team-mini {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
}
.team-mini-card {
  text-align: center;
  padding: 1.4rem 0.6rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.team-mini-card .avatar {
  width: 56px;
  height: 56px;
  margin: 0 auto 0.7rem;
  font-size: 1.25rem;
}
.team-mini-card h4 { font-size: 0.92rem; color: var(--navy-ink); }
.team-mini-card p { font-size: 0.76rem; color: var(--muted); line-height: 1.5; }

/* ---------- FAQ 手風琴 ---------- */
.faq-list { display: grid; gap: 0.9rem; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.15rem 3.2rem 1.15rem 1.4rem;
  font-weight: 500;
  color: var(--navy-ink);
  position: relative;
  font-size: 0.98rem;
  letter-spacing: 0.02em;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 1.3rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
  color: var(--gold);
  transition: transform 0.25s ease;
}
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-item[open] summary { border-bottom: 1px solid var(--line); }
.faq-item .faq-body {
  padding: 1.1rem 1.4rem 1.3rem;
  font-size: 0.93rem;
  color: var(--muted);
}

/* ---------- 文章卡 ---------- */
.insight-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
  transition: all 0.25s ease;
}
.insight-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--gold-soft);
  transform: translateY(-4px);
}
.insight-card .cat {
  font-size: 0.75rem;
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 0.12em;
  margin-bottom: 0.6rem;
}
.insight-card h3 {
  font-size: 1.02rem;
  color: var(--navy-ink);
  margin-bottom: 0.6rem;
  line-height: 1.6;
}
.insight-card p {
  font-size: 0.88rem;
  color: var(--muted);
  flex: 1;
}
.insight-card .meta {
  margin-top: 1rem;
  font-size: 0.78rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding-top: 0.8rem;
}

/* ---------- 情境卡 ---------- */
.scenario {
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 4px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.5rem 1.7rem;
}
.scenario h3 {
  font-size: 1rem;
  color: var(--navy-ink);
  margin-bottom: 0.5rem;
}
.scenario p { font-size: 0.9rem; color: var(--muted); }

/* ---------- 引言 / 短句 ---------- */
.quote-band {
  text-align: center;
  padding: 3.6rem 0;
}
.quote-band blockquote {
  font-size: clamp(1.1rem, 2.2vw, 1.45rem);
  color: var(--gold-soft);
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.9;
}
.quote-band cite {
  display: block;
  margin-top: 1rem;
  font-style: normal;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.15em;
}

/* ---------- CTA 區 ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--navy-ink) 0%, var(--navy) 100%);
  color: var(--white);
  border-radius: 14px;
  padding: 3.2rem 2.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}
.cta-band::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 240px;
  height: 240px;
  border: 1px solid rgba(207, 179, 131, 0.3);
  border-radius: 50%;
}
.cta-band h2 {
  font-size: 1.4rem;
  margin-bottom: 0.6rem;
  letter-spacing: 0.05em;
}
.cta-band p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
  max-width: 560px;
}
.cta-band .cta-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* ---------- 內文排版 ---------- */
.prose h2 {
  font-size: 1.35rem;
  color: var(--navy-ink);
  margin: 2.4rem 0 1rem;
  padding-left: 0.85rem;
  border-left: 4px solid var(--gold);
  letter-spacing: 0.05em;
}
.prose h2:first-child { margin-top: 0; }
.prose h3 {
  font-size: 1.08rem;
  color: var(--navy-ink);
  margin: 1.8rem 0 0.7rem;
  letter-spacing: 0.04em;
}
.prose p { margin-bottom: 1.1rem; color: var(--text); }
.prose ul, .prose ol {
  margin: 0 0 1.2rem 1.4rem;
  color: var(--text);
}
.prose li { margin-bottom: 0.4rem; }
.prose strong { color: var(--navy-ink); }

.notice {
  background: var(--gold-pale);
  border: 1px solid var(--gold-soft);
  border-radius: var(--radius);
  padding: 1.3rem 1.6rem;
  font-size: 0.92rem;
  color: var(--text);
}
.notice strong { color: var(--navy-ink); }

/* ---------- 聯絡頁 ---------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1.1fr 1.6fr;
  gap: 3rem;
  align-items: start;
}
.contact-info-card {
  background: var(--navy-deep);
  color: var(--white);
  border-radius: var(--radius);
  padding: 2.2rem 2rem;
  position: sticky;
  top: 96px;
}
.contact-info-card h3 {
  font-size: 1.15rem;
  margin-bottom: 1.4rem;
  color: var(--gold-soft);
  letter-spacing: 0.06em;
}
.contact-info-card dl { display: grid; gap: 1.1rem; }
.contact-info-card dt {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.1em;
  margin-bottom: 0.15rem;
}
.contact-info-card dd {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.92);
}
.contact-info-card .divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.14);
  margin: 1.6rem 0;
}
.contact-info-card small {
  display: block;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
}

/* 表單 */
.form-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.2rem;
  box-shadow: var(--shadow);
}
.form-section-title {
  font-size: 1rem;
  color: var(--navy-ink);
  font-weight: 700;
  margin: 1.8rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
  letter-spacing: 0.05em;
}
.form-section-title:first-child { margin-top: 0; }
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem 1.2rem;
}
.form-field { display: flex; flex-direction: column; gap: 0.35rem; }
.form-field.full { grid-column: 1 / -1; }
.form-field label {
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--navy-ink);
}
.form-field label .req { color: #b0533e; }
.form-field input,
.form-field select,
.form-field textarea {
  font-family: inherit;
  font-size: 0.92rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  color: var(--text);
  transition: border-color 0.2s ease;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--gold);
  background: var(--white);
}
.form-field textarea { resize: vertical; min-height: 110px; }
.form-hint {
  font-size: 0.78rem;
  color: var(--muted);
}
.form-extra { display: none; }
.form-extra.visible { display: block; }
.form-success {
  display: none;
  background: #eef5ee;
  border: 1px solid #bcd4bc;
  border-radius: var(--radius);
  padding: 1.4rem 1.6rem;
  color: #2e5236;
  font-size: 0.93rem;
  margin-top: 1.4rem;
}
.form-success.visible { display: block; }

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.checkbox-row input { margin-top: 0.35rem; }

/* ---------- 地圖 / 位置 ---------- */
.map-placeholder {
  background:
    linear-gradient(rgba(30, 45, 79, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 45, 79, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  background-color: var(--mist);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.5rem;
  color: var(--muted);
  text-align: center;
  padding: 2rem;
}
.map-placeholder strong { color: var(--navy-ink); font-size: 1.05rem; }

/* ---------- 數據 / 特色列 ---------- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
}
.stat-row .stat h3 {
  font-size: 1.9rem;
  color: var(--gold);
  font-weight: 700;
  margin-bottom: 0.2rem;
}
.stat-row .stat p {
  font-size: 0.88rem;
  color: var(--muted);
}
.section-navy .stat-row .stat p { color: rgba(255, 255, 255, 0.75); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-ink);
  color: rgba(255, 255, 255, 0.78);
  padding: 3.6rem 0 0;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 2.5rem;
  padding-bottom: 2.6rem;
}
.footer-goldline {
  display: block;
  width: 34px;
  height: 3px;
  background: var(--gold);
  border-radius: 2px;
  margin-bottom: 0.9rem;
}
.footer-brand strong {
  display: block;
  color: var(--white);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  margin-bottom: 0.15rem;
}
.footer-brand .en {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
  display: block;
}
.footer-brand p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  max-width: 300px;
}
.site-footer h4 {
  color: var(--gold-soft);
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  margin-bottom: 1.1rem;
  font-weight: 700;
}
.site-footer ul { list-style: none; display: grid; gap: 0.55rem; }
.site-footer ul a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.88rem;
}
.site-footer ul a:hover { color: var(--gold-soft); }
.footer-contact p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 0.55rem;
  line-height: 1.7;
}
.footer-contact a {
  color: var(--gold-soft);
}
.footer-contact a:hover {
  color: var(--white);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 1.4rem 0;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
}
.footer-bottom a { color: rgba(255, 255, 255, 0.6); }
.footer-bottom a:hover { color: var(--gold-soft); }
.footer-legal-links { display: flex; gap: 1.2rem; flex-wrap: wrap; }

/* ---------- 事務所環境照片 ---------- */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.photo-card {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  transition: all 0.25s ease;
}
.photo-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--gold-soft);
}
.photo-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.photo-card figcaption {
  padding: 0.75rem 1.1rem;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--navy-ink);
  border-top: 1px solid var(--line);
}

/* ---------- 動畫 ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- RWD ---------- */
@media (max-width: 1024px) {
  .cards-4 { grid-template-columns: repeat(2, 1fr); }
  .team-mini { grid-template-columns: repeat(3, 1fr); }
  .process-strip { grid-template-columns: repeat(3, 1fr); }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1080px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    /* 明確指定高度而非 bottom:0：即使舊版瀏覽器把 fixed 定位錯算成以 header 為基準，
       面板仍有完整高度可顯示內容 */
    height: calc(100vh - 72px);
    height: calc(100dvh - 72px);
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem 6%;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }
  .site-nav.open { transform: translateX(0); }
  .site-nav > a,
  .nav-drop > .drop-toggle {
    display: block;
    padding: 0.95rem 0;
    border-bottom: 1px solid var(--line);
    font-size: 1rem;
  }
  .site-nav .nav-cta {
    margin-top: 1.2rem;
    text-align: center;
    border-radius: 6px;
  }
  .site-nav .lang-switch {
    margin-top: 0.8rem;
    text-align: center;
  }
  .nav-drop .drop-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: none;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    display: none;
    padding: 0 0 0.5rem 1rem;
  }
  .nav-drop.open .drop-menu { display: block; }
}

@media (max-width: 900px) {
  .cards-3, .cards-2 { grid-template-columns: 1fr; }
  .photo-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-info-card { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .feature-list { grid-template-columns: 1fr; }
  .hero-inner { padding: 5rem 0 4.5rem; }
}

@media (max-width: 600px) {
  .team-mini { grid-template-columns: repeat(2, 1fr); }
  .process-strip { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-band { padding: 2.4rem 1.6rem; }
  .brand-text strong { font-size: 0.9rem; }
  .brand-text small { display: none; }
}