/* ==========================================================================
   貝克裝潢 ・ 日系極簡風 CSS
   配色取自 Logo：朱紅 #D44C28 / 鵝黃 #D4A437 / 米白 #FAF6F0
   字體：Noto Serif TC（明朝主標）+ Noto Sans TC（內文）
   ========================================================================== */

/* --- 設計變數 -------------------------------------------------------------- */
:root {
  --color-bg: #FAF6F0;          /* 米白底 */
  --color-bg-pure: #FFFFFF;     /* 純白 */
  --color-text: #2A2A2A;        /* 主文字 */
  --color-text-soft: #6B6B6B;   /* 副文字 */
  --color-line: #E5DFD5;        /* 分隔線 */
  --color-accent: #D44C28;      /* Logo 朱紅 */
  --color-accent-soft: #C0432B; /* hover */
  --color-gold: #D4A437;        /* Logo 鵝黃 */
  --color-wood: #B8956A;        /* 木色 accent */

  --font-serif: "Noto Serif TC", "Songti TC", "PMingLiU", serif;
  --font-sans: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;

  --max-width: 1200px;
  --max-width-narrow: 880px;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 3.5rem;
  --space-xl: 5rem;
  --space-xxl: 6.5rem;
}

/* --- Reset --------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.05em;
  margin: 0;
}
h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); }

p { margin: 0 0 1em; letter-spacing: 0.05em; }

/* --- 通用容器 -------------------------------------------------------------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.container-narrow {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: 0 var(--space-md);
}
section { padding: var(--space-xxl) 0; }
@media (max-width: 768px) {
  section { padding: var(--space-xl) 0; }
}

/* 區塊標題（小英字 + 中文主標） */
.section-eyebrow {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  letter-spacing: 0.4em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}
.section-title {
  margin-bottom: var(--space-lg);
}
.section-title::after {
  content: "";
  display: block;
  width: 40px;
  height: 2px;
  background: var(--color-accent);
  margin-top: var(--space-sm);
}

/* --- 導航列 -------------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 246, 240, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem var(--space-md);
  max-width: var(--max-width);
  margin: 0 auto;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.nav-brand img { height: 40px; width: auto; }
.nav-brand .brand-name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.15em;
}
.nav-menu {
  display: flex;
  gap: var(--space-md);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-menu a {
  font-size: 0.95rem;
  letter-spacing: 0.15em;
  position: relative;
  padding: 0.3rem 0;
  transition: color 0.2s;
}
.nav-menu a:hover { color: var(--color-accent); }
.nav-menu a.active {
  color: var(--color-accent);
}
.nav-menu a.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
}
.nav-cta {
  background: var(--color-accent);
  color: white !important;
  padding: 0.6rem 1.4rem;
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  border-radius: 2px;
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--color-accent-soft); color: white !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all 0.3s;
}

@media (max-width: 860px) {
  .nav-menu, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .nav.menu-open .nav-menu {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg);
    padding: var(--space-md);
    gap: var(--space-md);
    border-bottom: 1px solid var(--color-line);
  }
  .nav.menu-open .nav-cta {
    display: inline-block;
    text-align: center;
    margin-top: var(--space-sm);
  }
}

/* --- Hero --------------------------------------------------------------- */
.hero {
  padding: var(--space-xl) 0;
  position: relative;
  overflow: hidden;
}
.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}
.hero-eyebrow {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  letter-spacing: 0.5em;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}
.hero h1 {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  line-height: 1.45;
  margin-bottom: var(--space-md);
}
.hero h1 .accent { color: var(--color-accent); }
.hero-sub {
  font-size: 1.05rem;
  color: var(--color-text-soft);
  letter-spacing: 0.3em;
  margin-bottom: var(--space-lg);
}
.hero-cta {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}
.btn {
  display: inline-block;
  padding: 0.9rem 2rem;
  font-size: 0.95rem;
  letter-spacing: 0.2em;
  border-radius: 2px;
  transition: all 0.2s;
  cursor: pointer;
}
.btn-primary {
  background: var(--color-accent);
  color: white;
}
.btn-primary:hover {
  background: var(--color-accent-soft);
  transform: translateY(-2px);
}
.btn-ghost {
  border: 1px solid var(--color-text);
  color: var(--color-text);
}
.btn-ghost:hover {
  background: var(--color-text);
  color: white;
}
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-visual img {
  max-width: 240px;
  max-height: 380px;
  width: 100%;
  height: auto;
  object-fit: contain;
}

@media (max-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    text-align: center;
  }
  .hero-cta { justify-content: center; }
  .hero-visual img { max-width: 200px; }
}

/* --- 關於簡介（首頁區段） ----------------------------------------------- */
.about-brief {
  background: var(--color-bg-pure);
}
.about-brief-inner {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: 0 var(--space-md);
  text-align: center;
}
.about-brief blockquote {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
  line-height: 2;
  letter-spacing: 0.1em;
  margin: 0 0 var(--space-lg);
  color: var(--color-text);
}
.about-brief p {
  color: var(--color-text-soft);
  font-size: 1rem;
  letter-spacing: 0.08em;
}
.about-brief .read-more {
  display: inline-block;
  margin-top: var(--space-md);
  color: var(--color-accent);
  font-weight: 500;
  letter-spacing: 0.2em;
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: 4px;
  transition: all 0.2s;
}
.about-brief .read-more:hover { letter-spacing: 0.3em; }

/* --- 四大承諾 ----------------------------------------------------------- */
.promises {
  background: var(--color-bg);
}
.promises-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}
.promise-card {
  padding: var(--space-md);
  background: var(--color-bg-pure);
  border-top: 3px solid var(--color-accent);
  transition: transform 0.2s, box-shadow 0.2s;
}
.promise-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.06);
}
.promise-card .num {
  font-family: var(--font-serif);
  font-size: 2.4rem;
  color: var(--color-gold);
  line-height: 1;
  margin-bottom: var(--space-sm);
}
.promise-card h3 {
  margin-bottom: var(--space-sm);
  font-size: 1.3rem;
}
.promise-card p {
  font-size: 0.95rem;
  color: var(--color-text-soft);
  margin: 0;
}
@media (max-width: 880px) {
  .promises-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .promises-grid { grid-template-columns: 1fr; }
}

/* --- 服務項目 ----------------------------------------------------------- */
.services {
  background: var(--color-bg-pure);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}
.service-card {
  padding: var(--space-lg) var(--space-md);
  border: 1px solid var(--color-line);
  background: var(--color-bg);
  transition: all 0.3s;
  position: relative;
}
.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.3s;
}
.service-card:hover::before { width: 100%; }
.service-card:hover { background: var(--color-bg-pure); }
.service-card h3 {
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
}
.service-card h3 .icon {
  color: var(--color-accent);
  font-size: 1.2rem;
}
.service-card p {
  color: var(--color-text-soft);
  font-size: 0.95rem;
}
@media (max-width: 768px) {
  .services-grid { grid-template-columns: 1fr; }
}

/* --- 案例展示 ----------------------------------------------------------- */
.portfolio {
  background: var(--color-bg);
}
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}
.portfolio-item {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--color-line);
  cursor: pointer;
}
.portfolio-item .placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #E5DFD5 0%, #D4C9B8 100%);
  color: var(--color-text-soft);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  letter-spacing: 0.3em;
}
.portfolio-item .overlay {
  position: absolute;
  inset: 0;
  background: rgba(42,42,42,0.7);
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s;
  padding: var(--space-md);
  text-align: center;
}
.portfolio-item:hover .overlay { opacity: 1; }
.portfolio-item .overlay h4 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin-bottom: var(--space-xs);
  letter-spacing: 0.1em;
}
.portfolio-item .overlay p {
  font-size: 0.9rem;
  margin: 0;
  letter-spacing: 0.1em;
}
.portfolio-note {
  text-align: center;
  margin-top: var(--space-lg);
  color: var(--color-text-soft);
  font-size: 0.95rem;
}
@media (max-width: 768px) {
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .portfolio-grid { grid-template-columns: 1fr; }
}

/* --- CTA 區塊 ------------------------------------------------------------ */
.cta-band {
  background: var(--color-text);
  color: white;
  padding: var(--space-xl) 0;
  text-align: center;
}
.cta-band h2 {
  color: white;
  margin-bottom: var(--space-md);
}
.cta-band p {
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--space-lg);
  font-size: 1.05rem;
}
.cta-band .btn-primary { background: var(--color-accent); }

/* --- Footer ------------------------------------------------------------- */
.footer {
  background: #1F1F1F;
  color: rgba(255,255,255,0.75);
  padding: var(--space-xl) 0 var(--space-md);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.footer h4 {
  color: white;
  font-size: 1rem;
  letter-spacing: 0.2em;
  margin-bottom: var(--space-md);
  font-family: var(--font-serif);
}
.footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer li { margin-bottom: 0.6rem; font-size: 0.92rem; }
.footer a:hover { color: var(--color-gold); }
.footer-brand p {
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.6);
}
.footer-brand img { height: 50px; margin-bottom: var(--space-md); }
.footer-bottom {
  max-width: var(--max-width);
  margin: var(--space-lg) auto 0;
  padding: var(--space-md) var(--space-md) 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.1em;
}
@media (max-width: 880px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
  }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* --- 浮動 LINE 按鈕 ----------------------------------------------------- */
.float-line {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: #06C755;
  color: white;
  padding: 14px 22px;
  border-radius: 50px;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  box-shadow: 0 8px 24px rgba(6,199,85,0.3);
  z-index: 99;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: transform 0.2s;
}
.float-line:hover {
  transform: translateY(-3px);
  color: white;
}

/* --- 子頁 Page Header --------------------------------------------------- */
.page-header {
  background: var(--color-bg-pure);
  padding: var(--space-xl) 0 var(--space-lg);
  text-align: center;
  border-bottom: 1px solid var(--color-line);
}
.page-header .eyebrow {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  letter-spacing: 0.5em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}
.page-header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--space-sm);
}
.page-header p {
  color: var(--color-text-soft);
  letter-spacing: 0.15em;
  margin: 0;
}

/* --- About 頁專用 ------------------------------------------------------- */
.story-section {
  background: var(--color-bg);
}
.story-block {
  max-width: var(--max-width-narrow);
  margin: 0 auto var(--space-xl);
  padding: 0 var(--space-md);
}
.story-block:last-child { margin-bottom: 0; }
.story-block .chapter {
  font-family: var(--font-serif);
  color: var(--color-accent);
  font-size: 0.9rem;
  letter-spacing: 0.5em;
  margin-bottom: var(--space-sm);
}
.story-block h2 {
  margin-bottom: var(--space-md);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}
.story-block p {
  font-size: 1.05rem;
  line-height: 2;
  color: var(--color-text);
}
.story-block .highlight {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--color-accent);
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-md);
  margin: var(--space-lg) 0;
  line-height: 2;
}

/* --- Contact 頁 -------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.contact-info dl {
  margin: 0;
}
.contact-info dt {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  letter-spacing: 0.4em;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
  margin-top: var(--space-md);
}
.contact-info dt:first-child { margin-top: 0; }
.contact-info dd {
  margin: 0;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-line);
}
.contact-info dd a:hover { color: var(--color-accent); }

.contact-form {
  background: var(--color-bg-pure);
  padding: var(--space-lg);
  border: 1px solid var(--color-line);
}
.contact-form h3 { margin-bottom: var(--space-md); }
.form-group { margin-bottom: var(--space-md); }
.form-group label {
  display: block;
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  margin-bottom: var(--space-xs);
  color: var(--color-text-soft);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.8rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  border: 1px solid var(--color-line);
  background: var(--color-bg);
  letter-spacing: 0.05em;
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.contact-form .btn-primary { width: 100%; }

@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
}

/* --- Services 頁 ------------------------------------------------------- */
.service-detail-list {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.service-detail {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-lg);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-line);
  align-items: start;
}
.service-detail:last-child { border-bottom: none; }
.service-detail .label {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-accent);
  letter-spacing: 0.15em;
}
.service-detail .label .num {
  display: block;
  color: var(--color-gold);
  font-size: 1rem;
  margin-bottom: var(--space-xs);
  letter-spacing: 0.3em;
}
.service-detail h3 { margin-bottom: var(--space-sm); }
.service-detail p {
  color: var(--color-text-soft);
  font-size: 1rem;
  line-height: 1.9;
}
.service-detail ul {
  margin-top: var(--space-sm);
  padding-left: 1.2rem;
  color: var(--color-text-soft);
}
.service-detail li { margin-bottom: 0.4rem; font-size: 0.95rem; }
@media (max-width: 768px) {
  .service-detail {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
}

/* ==========================================================================
   首頁改版新增區塊（2026）
   ========================================================================== */

/* --- Hero 補充：副標段落 + 信任條 --- */
.hero-lead {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--color-text-soft);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-lg);
  max-width: 30em;
}
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
  margin-top: var(--space-md);
  font-size: 0.9rem;
  color: var(--color-text-soft);
  letter-spacing: 0.1em;
}
.hero-trust span { display: flex; align-items: center; gap: 0.4rem; }
.hero-trust span::before { content: "✓"; color: var(--color-accent); font-weight: 700; }
@media (max-width: 768px) {
  .hero-lead { margin-left: auto; margin-right: auto; }
  .hero-trust { justify-content: center; }
}

/* --- 三個利益點 --- */
.benefits { background: var(--color-bg); }
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.benefit-card { padding: var(--space-md); text-align: center; }
.benefit-card .b-icon {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}
.benefit-card h3 { font-size: 1.25rem; margin-bottom: var(--space-sm); }
.benefit-card p { color: var(--color-text-soft); font-size: 0.95rem; margin: 0; }
@media (max-width: 768px) {
  .benefits-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
}

/* --- 為什麼選貝克：開場句 + 信任數字 --- */
.lead-in {
  max-width: var(--max-width-narrow);
  font-size: 1.1rem;
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}
.trust-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
  border-top: 1px solid var(--color-line);
  padding-top: var(--space-lg);
}
.trust-stats .stat { text-align: center; }
.trust-stats .stat .n {
  font-family: var(--font-serif);
  font-size: 1.9rem;
  color: var(--color-accent);
  line-height: 1.2;
}
.trust-stats .stat .l {
  font-size: 0.85rem;
  color: var(--color-text-soft);
  letter-spacing: 0.1em;
}
@media (max-width: 768px) {
  .trust-stats { grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
}

/* --- 客戶評價 --- */
.reviews { background: var(--color-bg-pure); }
.google-rating { text-align: center; margin-bottom: var(--space-lg); }
.google-rating .stars { color: var(--color-gold); font-size: 1.6rem; letter-spacing: 0.1em; }
.google-rating .score {
  font-family: var(--font-serif);
  font-size: 1rem;
  margin-top: var(--space-xs);
  color: var(--color-text-soft);
}
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.review-card {
  padding: var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-line);
}
.review-card .quote { font-size: 0.98rem; line-height: 1.9; margin-bottom: var(--space-sm); }
.review-card .who { font-size: 0.85rem; color: var(--color-text-soft); letter-spacing: 0.1em; }
@media (max-width: 768px) {
  .reviews-grid { grid-template-columns: 1fr; }
}

/* --- FAQ 展開／收合 --- */
.faq { background: var(--color-bg); }
.faq-list { max-width: var(--max-width-narrow); margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--color-line); }
.faq-q {
  width: 100%;
  text-align: left;
  padding: var(--space-md) 0;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  color: var(--color-text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
}
.faq-q .mark {
  color: var(--color-accent);
  font-size: 1.4rem;
  flex-shrink: 0;
  transition: transform 0.2s;
}
.faq-item.open .faq-q .mark { transform: rotate(45deg); }
.faq-a {
  display: none;
  padding: 0 0 var(--space-md);
  color: var(--color-text-soft);
  font-size: 0.98rem;
  line-height: 1.9;
}
.faq-item.open .faq-a { display: block; }

/* --- 手機底部行動列 --- */
.mobile-bar { display: none; }
@media (max-width: 768px) {
  .mobile-bar {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 98;
    background: var(--color-bg-pure);
    border-top: 1px solid var(--color-line);
  }
  .mobile-bar a {
    padding: 0.9rem 0;
    text-align: center;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    border-right: 1px solid var(--color-line);
  }
  .mobile-bar a:last-child { border-right: none; }
  .mobile-bar a.line { background: #06C755; color: #fff; }
  .float-line { bottom: 72px; }
  body { padding-bottom: 52px; }
}