/* 企業購買入口 — HTML 雛形（低傳真線框風） */
:root {
  --border: #c8cdd5;
  --bg: #f4f5f7;
  --text: #1a1d24;
  --muted: #5c6370;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --warn-bg: #fff7ed;
  --warn-border: #fdba74;
  --line: #06c755;
  --max: 40rem;
  --header-h: 3.25rem;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
  padding-bottom: 5rem;
}

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

a:hover {
  text-decoration: underline;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.5rem 1rem;
  background: #fff;
  border: 1px solid var(--border);
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
  z-index: 10000;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
  min-height: var(--header-h);
}

.site-header__inner {
  max-width: calc(var(--max) + 4rem);
  margin: 0 auto;
  padding: 0.65rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-brand {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
}

.site-brand:hover {
  text-decoration: none;
}

.site-brand span {
  font-weight: 400;
  color: var(--muted);
  font-size: 0.875rem;
}

.site-nav {
  display: flex;
  gap: 1rem;
  font-size: 0.875rem;
}

.site-nav a {
  color: var(--muted);
}

.site-nav a:hover {
  color: var(--accent);
}

.step-bar {
  max-width: calc(var(--max) + 4rem);
  margin: 0 auto;
  padding: 0.5rem 1.25rem 0;
  font-size: 0.8125rem;
  color: var(--muted);
}

.step-bar strong {
  color: var(--text);
}

main {
  max-width: calc(var(--max) + 4rem);
  margin: 0 auto;
  padding: 1.25rem;
}

.wire-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
}

.wire-card h1 {
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
  font-weight: 700;
}

.wire-card h2 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1rem;
  font-weight: 700;
}

.wire-card h2:first-of-type {
  margin-top: 0;
}

.wire-muted {
  font-size: 0.875rem;
  color: var(--muted);
  margin: 0 0 1rem;
}

.wire-hero {
  text-align: center;
  padding: 2rem 1rem;
}

.wire-hero h1 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.wire-placeholder {
  height: 140px;
  background: repeating-linear-gradient(
    -45deg,
    #e8eaee,
    #e8eaee 8px,
    #f0f2f5 8px,
    #f0f2f5 16px
  );
  border: 1px dashed var(--border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.875rem;
  margin: 1rem 0;
}

.wire-list {
  margin: 0;
  padding-left: 1.25rem;
}

.wire-steps {
  display: grid;
  gap: 0.5rem;
  margin: 1rem 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.wire-steps li {
  counter-increment: step;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #fafafb;
  font-size: 0.875rem;
}

.wire-steps li::before {
  content: counter(step) ". ";
  font-weight: 700;
  color: var(--muted);
}

.wire-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.btn {
  display: inline-block;
  padding: 0.6rem 1.15rem;
  font-size: 0.9375rem;
  font-family: inherit;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
}

.btn:hover {
  text-decoration: none;
}

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

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

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

.btn--secondary:hover {
  background: var(--bg);
  color: var(--text);
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

@media (max-width: 560px) {
  .split-grid {
    grid-template-columns: 1fr;
  }
}

.split-card {
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  text-align: center;
  background: #fafafb;
}

.split-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.split-card p {
  margin: 0 0 1rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  max-width: 100%;
  padding: 0.5rem 0.65rem;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--border);
  border-radius: 4px;
}

.form-group textarea {
  min-height: 4rem;
  resize: vertical;
}

.form-inline {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: flex-end;
}

.form-inline .form-group {
  flex: 1;
  min-width: 8rem;
}

.radio-group label {
  font-weight: 400;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  cursor: pointer;
}

.radio-group input {
  margin-top: 0.35rem;
}

.tier-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
  margin: 0.75rem 0;
}

.tier-table th,
.tier-table td {
  border: 1px solid var(--border);
  padding: 0.45rem 0.5rem;
  text-align: left;
}

.tier-table th {
  background: #eef0f3;
}

.alert-box {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  margin: 1rem 0;
}

.flow-back {
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
}

.site-footer {
  max-width: calc(var(--max) + 4rem);
  margin: 2rem auto 0;
  padding: 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--muted);
}

.site-footer p {
  margin: 0 0 0.35rem;
}

.fab-line {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 200;
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  background: var(--line);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
  text-decoration: none;
  line-height: 1.1;
  text-align: center;
  padding: 0.25rem;
}

.fab-line:hover {
  filter: brightness(1.05);
  color: #fff;
  text-decoration: none;
}

.fab-line span {
  pointer-events: none;
}

/* 主按鈕區與 FAB 錯開：流程頁底部留白已於 body padding-bottom 處理 */

.faq-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}

.faq-cats a {
  font-size: 0.8125rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #fff;
  color: var(--muted);
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 0.5rem;
  overflow: hidden;
}

.faq-item summary {
  padding: 0.65rem 1rem;
  font-weight: 600;
  cursor: pointer;
  background: #fafafb;
}

.faq-item p {
  margin: 0;
  padding: 0.65rem 1rem 1rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.mono {
  font-family: ui-monospace, monospace;
  font-size: 0.875rem;
}