:root {
  --color-primary: #1e40af;
  --color-primary-light: #2563eb;
  --color-primary-dark: #1e3a8a;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-muted: #64748b;
  --color-text: #1e293b;
  --color-heading: #0f172a;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --radius: 8px;
  --radius-lg: 12px;
  --radius-pill: 999px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, system-ui, "Noto Sans TC",
    "PingFang TC", "Microsoft JhengHei", "Helvetica Neue", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: min(1100px, 100% - 32px);
  margin: 0 auto;
}

h1,
h2,
h3 {
  margin: 0 0 0.6em;
  color: var(--color-heading);
  font-weight: 600;
  letter-spacing: 0.02em;
}

p {
  margin: 0 0 0.8em;
  line-height: 1.7;
  color: var(--color-muted);
}

ul {
  padding-left: 1.2rem;
  margin: 0.2rem 0 0.8rem;
  color: var(--color-muted);
}

/* Nav */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.nav-brand {
  font-weight: 600;
  font-size: 1.75rem;
  color: var(--color-heading);
  text-decoration: none;
  letter-spacing: 0.04em;
}

.nav-brand:hover {
  color: var(--color-primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 1.2rem;
  padding: 6px 12px;
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-muted);
  text-decoration: none;
  font-size: 0.9rem;
}

.nav-links a:hover {
  color: var(--color-primary);
}

.btn.small {
  padding: 6px 16px;
  font-size: 0.85rem;
}

/* Hero */

.hero {
  padding: 20px 0 56px;
  background: linear-gradient(180deg, #f1f5f9 0%, var(--color-bg) 100%);
}

.hero-content {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.hero-text h1 {
  font-size: clamp(1.4rem, 5vw, 2.25rem);
  color: var(--color-heading);
  line-height: 1.35;
  word-break: keep-all;
}

.hero-subtitle {
  font-size: 0.95rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.hero-body {
  max-width: 28rem;
  color: var(--color-muted);
  margin-top: 16px;
  margin-bottom: 0;
  line-height: 1.7;
}


.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.hero-note {
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--color-muted);
}

.hero-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
}

.hero-card h2 {
  font-size: 1.2rem;
  color: var(--color-heading);
}

.hero-card-subtitle {
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

/* Sections */

.section {
  padding: 48px 0;
}

.section.alt {
  background: var(--color-bg-alt);
}

.section h2 {
  font-size: 1.5rem;
  color: var(--color-heading);
}

.section-header {
  text-align: left;
  margin-bottom: 24px;
}

.section-intro {
  margin-bottom: 24px;
  max-width: 42rem;
}

/* Flow steps */

.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 28px;
}

.flow-step {
  text-align: center;
  padding: 24px 16px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  box-shadow: var(--shadow-sm);
}

.flow-num {
  display: block;
  width: 40px;
  height: 40px;
  line-height: 40px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
}

.flow-step p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* Timeline callout */

.timeline-section {
  padding-top: 8px;
  padding-bottom: 8px;
}

.timeline-callout {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.timeline-side {
  font-size: 0.86rem;
  color: var(--color-muted);
  white-space: nowrap;
}

.timeline-track {
  width: clamp(52px, 8vw, 90px);
  height: 2px;
  background: linear-gradient(to right, #bfdbfe, var(--color-primary-light), #bfdbfe);
  border-radius: 999px;
}

.timeline-badge {
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid #bfdbfe;
  background: #eff6ff;
  color: var(--color-primary-dark);
  font-size: 0.95rem;
  font-weight: 600;
  white-space: nowrap;
}

.timeline-note {
  margin-top: 10px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-muted);
}

/* Layout helpers */

.grid {
  display: grid;
  gap: 20px;
}

.two-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.three-columns {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.quote-grid {
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  align-items: start;
}

.gap {
  gap: 8px;
}

.card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.card h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--color-heading);
}

.card p {
  margin: 0;
  font-size: 0.9rem;
}

/* FAQ */

.faq-list {
  display: grid;
  gap: 8px;
}

details {
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  padding: 14px 18px;
  box-shadow: var(--shadow-sm);
}

details summary {
  list-style: none;
  cursor: pointer;
  font-weight: 500;
  color: var(--color-heading);
}

details summary::-webkit-details-marker {
  display: none;
}

details[open] {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}

details p {
  margin-top: 8px;
  font-size: 0.9rem;
}

details a {
  color: var(--color-primary);
  text-decoration: none;
}

details a:hover {
  text-decoration: underline;
}

/* Forms */

.quote-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.9rem;
  color: var(--color-text);
}

input,
select,
textarea {
  font: inherit;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  padding: 10px 14px;
  background: var(--color-bg);
  color: var(--color-text);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

textarea {
  border-radius: var(--radius);
  resize: vertical;
  min-height: 80px;
}

input::placeholder,
textarea::placeholder {
  color: #94a3b8;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

fieldset {
  border: none;
  padding: 0;
  margin: 0;
}

legend {
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: var(--color-text);
}

.options-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.checkbox {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--color-muted);
  cursor: pointer;
}

.checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  accent-color: var(--color-primary);
}

.preference-group {
  margin: 4px 0 0;
}

.preference-group legend {
  margin-bottom: 8px;
}

.preference-options {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
}

.radio {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--color-muted);
  cursor: pointer;
}

.radio input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
}

.form-footnote {
  font-size: 0.8rem;
  margin-top: 4px;
  color: var(--color-muted);
}

.form-success {
  font-size: 0.9rem;
  color: #15803d;
  margin-top: 4px;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.btn.primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.btn.primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
}

.btn.ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn.ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn.full-width {
  width: 100%;
}

/* Contact panel */

.contact-panel {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 20px;
  background: var(--color-bg);
  box-shadow: var(--shadow-sm);
}

.contact-panel h3 {
  font-size: 1rem;
  margin-bottom: 12px;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0 0 12px;
  font-size: 0.9rem;
}

.contact-list li {
  display: flex;
  gap: 6px;
  margin-bottom: 6px;
}

.contact-list a {
  color: var(--color-primary);
  text-decoration: none;
}

.contact-list a:hover {
  text-decoration: underline;
}

.contact-note {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.label {
  min-width: 70px;
  color: var(--color-muted);
}

/* Footer */

.footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  padding: 24px 0 32px;
  margin-top: 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  font-size: 0.9rem;
}

.brand {
  font-weight: 600;
  color: var(--color-heading);
  letter-spacing: 0.04em;
}

.footer p {
  margin: 0;
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links a {
  color: var(--color-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-primary);
}

/* Responsive */

@media (max-width: 900px) {
  /* 隱藏漢堡包按鈕 */
  .nav-toggle { 
    display: none !important; 
}

/* 讓整個 header 變成上下排列（上面 Logo，下面選單） */
.nav-content {
    flex-direction: column !important;
    align-items: flex-start !important; /* 讓 Logo 和選單靠左對齊 */
    padding: 8px 0 4px 0 !important;
    gap: 8px; /* Logo 和選單之間的距離 */
}

/* 將選單強制顯示，並且變成橫向一行 */
.nav-links {
    display: flex !important;
    position: static !important; /* 取消浮動，讓它乖乖待在 Logo 下面 */
    flex-direction: row !important; /* 選單文字橫向排列 */
    flex-wrap: wrap !important; /* 如果螢幕太窄，允許換行 */
    gap: 6px 12px !important; font-size: 0.85rem; /* 每個文字之間的距離 */
    padding: 0 !important;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    width: 100%;
}

/* 隱藏手機版選單裡的 WhatsApp 按鈕（因為下面已經有了） */
.nav-links a.btn {
    display: none; 
}

  .nav-links.is-open {
    display: flex;
  }

  .nav-content {
    position: relative;
  }

  .flow-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-content {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-card {
    order: 1;
  }

  .quote-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 720px) {

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    width: 100%;
  }
  .hero-actions .btn {
    padding: 10px 4px;
    font-size: 0.85rem;
    width: 100%;
  }
  .hero-body {
    margin-top: 12px;
    font-size: 0.9rem;
    line-height: 1.5;
  }

  .two-columns,
  .three-columns,
  .options-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .flow-steps {
    grid-template-columns: minmax(0, 1fr);
  }

  .timeline-callout {
    gap: 8px;
  }

  .hero {
    padding-top: 16px;
    padding-bottom: 32px;
  }

  .hero-card {
    padding: 20px 18px;
  }

  .section {
    padding: 36px 0;
  }

  .footer-content {
    flex-direction: column;
  }
}
/* 設定 Logo 和文字並排垂直置中 */
.nav-brand {
  display: flex;
  align-items: center;
  gap: 6px; /* Logo 和文字之間的距離，可自由調整 */
  text-decoration: none;
}

/* 控制 Logo 圖片的大小 */
.brand-logo {
  height: 3.75rem; /* 控制高度，寬度會自動按比例縮放 */
  width: auto;
  object-fit: contain;
}

/* 手機版的微調：稍微縮小 Logo */
@media only screen and (max-width: 768px) {
  .brand-logo {
      height: 2.8125rem;
  }
  .nav-brand {
    font-size: 1.5rem; /* 將手機版的字體稍微縮細（大約 18px） */
    white-space: nowrap; /* 強制文字絕對不可以換行 */
}
}