/* ============================================
   墨裁 MOCAI — 高定西装工坊
   Design System: Dark Luxury / 暗色奢华
   ============================================ */

/* --- CSS Variables / 设计令牌 --- */
:root {
  /* 色彩 */
  --bg-primary: #0a0a0a;
  --bg-secondary: #141414;
  --bg-elevated: #1c1c1c;
  --gold-primary: #c9a96e;
  --gold-light: #e4d4b8;
  --gold-dim: #8b7345;
  --cream: #f5f0e8;
  --cream-muted: #c8c2b8;
  --text-primary: #f5f0e8;
  --text-secondary: #9a9590;
  --text-dim: #5a564f;
  --border-subtle: rgba(201, 169, 110, 0.15);

  /* 字体 */
  --font-serif: "Cormorant Garamond", "Noto Serif SC", "Source Han Serif SC", Georgia, serif;
  --font-sans: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", sans-serif;

  /* 间距 */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-2xl: 10rem;

  /* 过渡 */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --transition-base: 0.3s var(--ease-out-expo);
  --transition-slow: 0.7s var(--ease-out-expo);

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
}

/* --- Reset & Base --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-secondary);
  line-height: 1.75;
  overflow-x: hidden;
}

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

a { text-decoration: none; color: inherit; transition: color var(--transition-base); }
ul, ol { list-style: none; }

/* --- Typography / 排版 --- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--text-primary);
  line-height: 1.15;
}

.display-xl {
  font-size: clamp(3rem, 8vw, 7rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.display-lg {
  font-size: clamp(2rem, 5vw, 4rem);
  letter-spacing: 0.06em;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  margin-bottom: var(--space-sm);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 1px;
  background: var(--gold-primary);
  margin-top: var(--space-sm);
  opacity: 0.7;
}

.subtitle {
  font-family: var(--font-sans);
  font-size: clamp(0.85rem, 1.2vw, 1rem);
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold-primary);
  margin-bottom: var(--space-sm);
}

.body-text {
  font-size: 1rem;
  max-width: 52ch;
  line-height: 1.9;
  color: var(--text-secondary);
}

/* --- Layout Utilities --- */
.container {
  width: 90%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-2xl) 0;
  position: relative;
}

/* --- Navigation / 导航栏 --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.5rem 0;
  transition: all var(--transition-slow);
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1rem 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  letter-spacing: 0.18em;
  color: var(--cream);
  font-weight: 400;
}

.wordmark span {
  font-family: var(--font-sans);
  font-size: 0.55em;
  letter-spacing: 0.35em;
  color: var(--gold-primary);
  margin-left: 0.6em;
  vertical-align: middle;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cream-muted);
  font-weight: 300;
  position: relative;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold-primary);
  transition: width var(--transition-base);
}

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

.nav-links a:hover::after {
  width: 100%;
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 4px;
  z-index: 1100;
}

.menu-toggle span {
  width: 24px;
  height: 1px;
  background: var(--cream);
  transition: all var(--transition-base);
}

.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* --- Hero Section / 首屏 --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  filter: brightness(0.55) contrast(1.05);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10, 10, 10, 0.45) 0%,
    rgba(10, 10, 10, 0.65) 50%,
    rgba(10, 10, 10, 0.92) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-md);
}

.hero-brand {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  letter-spacing: 0.22em;
  color: var(--cream);
  margin-bottom: var(--space-sm);
  animation: fadeUp 1.2s var(--ease-out-expo) both;
  animation-delay: 0.3s;
}

.hero-tagline {
  font-family: var(--font-sans);
  font-size: clamp(0.72rem, 1vw, 0.88rem);
  font-weight: 300;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--gold-primary);
  margin-bottom: var(--space-lg);
  animation: fadeUp 1.2s var(--ease-out-expo) both;
  animation-delay: 0.6s;
}

.hero-line {
  width: 80px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold-primary), transparent);
  margin: 0 auto var(--space-lg);
  animation: fadeIn 1.5s ease both;
  animation-delay: 0.9s;
}

.hero-desc {
  font-size: 1.06rem;
  color: var(--cream-muted);
  max-width: 48ch;
  margin: 0 auto var(--space-lg);
  font-weight: 300;
  line-height: 2;
  animation: fadeUp 1.2s var(--ease-out-expo) both;
  animation-delay: 1s;
}

.btn-primary {
  display: inline-block;
  padding: 1rem 3rem;
  border: 1px solid var(--gold-primary);
  color: var(--gold-primary);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-weight: 300;
  background: transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.5s var(--ease-out-expo);
  animation: fadeUp 1.2s var(--ease-out-expo) both;
  animation-delay: 1.3s;
}

.btn-primary::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gold-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.5s var(--ease-out-expo);
  z-index: -1;
}

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

.btn-primary:hover::before {
  transform: scaleX(1);
  transform-origin: left;
}

.scroll-cue {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: bounce 2s infinite;
}

.scroll-cue span {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.scroll-cue .mouse-icon {
  width: 20px;
  height: 32px;
  border: 1px solid var(--text-dim);
  border-radius: 12px;
  position: relative;
}

.scroll-cue .mouse-dot {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 6px;
  background: var(--gold-primary);
  border-radius: 2px;
  animation: scrollDot 1.8s infinite;
}

/* --- Philosophy Section / 理念 --- */
.philosophy {
  text-align: center;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-lg);
  text-align: left;
}

.philosophy-item {
  padding: var(--space-md);
  border-left: 1px solid var(--border-subtle);
  transition: border-color var(--transition-base);
}

.philosophy-item:hover {
  border-left-color: var(--gold-primary);
}

.philosophy-item .num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  color: var(--gold-dim);
  margin-bottom: var(--space-xs);
}

.philosophy-item h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-xs);
}

.philosophy-item p {
  font-size: 0.92rem;
  color: var(--text-dim);
  line-height: 1.8;
}

/* --- Collection Section / 作品集 --- */
.collection {
  background: var(--bg-secondary);
}

.collection-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.collection-tabs {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-top: var(--space-md);
}

.tab-btn {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--transition-base);
}

.tab-btn.active,
.tab-btn:hover {
  color: var(--gold-primary);
}

.tab-btn.active::after,
.tab-btn:hover::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gold-primary);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--space-md);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 3/4;
  cursor: pointer;
  background: var(--bg-elevated);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out-expo), filter 0.8s var(--ease-out-expo);
  filter: brightness(0.88) saturate(0.95);
}

.gallery-item:hover img {
  transform: scale(1.04);
  filter: brightness(1) saturate(1.05);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10, 10, 10, 0.82) 0%,
    transparent 60%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-md);
  opacity: 0;
  transition: opacity 0.5s var(--ease-out-expo);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-overlay h4 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  letter-spacing: 0.06em;
  color: var(--cream);
  margin-bottom: 4px;
}

.gallery-overlay p {
  font-size: 0.8rem;
  color: var(--gold-primary);
  letter-spacing: 0.1em;
}

/* Tab panels */
.tab-panel {
  display: none;
  animation: fadeIn 0.6s ease both;
}

.tab-panel.active {
  display: block;
}

/* --- Craftsmanship / 工艺流程 --- */
.craft {
  background: var(--bg-primary);
  overflow: hidden;
}

.craft-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.craft-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

.craft-img {
  aspect-ratio: 1;
  overflow: hidden;
}

.craft-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease-out-expo);
  filter: brightness(0.85) saturate(0.95);
}

.craft-img:first-child {
  grid-column: 1 / -1;
  aspect-ratio: 16/9;
}

.craft-img:hover img {
  transform: scale(1.03);
  filter: brightness(1);
}

.craft-text .subtitle {
  margin-top: 0;
}

.process-list {
  margin-top: var(--space-lg);
}

.process-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border-subtle);
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.process-item:last-child {
  border-bottom: none;
}

.process-item:hover {
  border-color: var(--gold-dim);
  transform: translateX(8px);
}

.step-num {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--gold-dim);
  min-width: 48px;
  line-height: 1;
  padding-top: 4px;
}

.step-info h4 {
  font-size: 1.1rem;
  margin-bottom: 4px;
  color: var(--cream);
}

.step-info p {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.7;
}

/* --- Fabrics / 面料 --- */
.fabrics {
  background: var(--bg-secondary);
  position: relative;
}

.fabric-showcase {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  margin-top: var(--space-xl);
}

.fabric-image {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
}

.fabric-image::before {
  content: "";
  position: absolute;
  inset: -2px;
  border: 1px solid var(--gold-dim);
  border-radius: var(--radius-sm);
  z-index: 1;
  pointer-events: none;
  opacity: 0.5;
  transition: opacity var(--transition-base);
}

.fabric-image:hover::before {
  opacity: 1;
}

.fabric-image img {
  width: 100%;
  border-radius: var(--radius-sm);
  transition: transform 0.8s var(--ease-out-expo), filter 0.8s var(--ease-out-expo);
  filter: brightness(0.9) saturate(1);
}

.fabric-image:hover img {
  transform: scale(1.02);
  filter: brightness(1);
}

.fabric-details {
  padding-left: var(--space-md);
}

.fabric-detail-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border-subtle);
}

.fabric-detail-row dt {
  font-size: 0.82rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}

.fabric-detail-row dd {
  font-size: 0.88rem;
  color: var(--cream);
  font-weight: 300;
}

.swatches {
  display: flex;
  gap: 12px;
  margin-top: var(--space-md);
}

.swatch {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.swatch:hover {
  transform: scale(1.15);
  box-shadow: 0 0 16px rgba(201, 169, 110, 0.3);
}

.swatch.charcoal { background: #3d3d3d; }
.swatch.navy     { background: #1a2744; }
.swatch.cream    { background: #e8dcc8; }
.swatch.black    { background: #111; }
.swatch.midnight { background: #1c1c30; }

/* --- Appointment / 预约 --- */
.appointment {
  background: var(--bg-primary);
  text-align: center;
  position: relative;
}

.appointment::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold-primary), transparent);
}

.appointment-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: var(--space-xl);
  align-items: start;
  text-align: left;
}

.appointment-info .subtitle,
.appointment-info .section-title {
  text-align: left;
}

.appointment-info .section-title::after {
  margin-left: 0;
}

.appointment-info .body-text {
  margin: var(--space-md) 0 var(--space-lg);
  text-align: left;
}

.appointment-info .body-text strong {
  color: var(--gold-primary);
  font-weight: 400;
}

.appointment-info .btn-primary {
  margin-bottom: var(--space-lg);
}

/* --- 预约表单 --- */
.appointment-form {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border-subtle);
  padding: var(--space-lg);
}

.booking-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

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

.form-field label {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 300;
  letter-spacing: 0.16em;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.form-field .req {
  color: var(--gold-primary);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  background: rgba(10, 10, 10, 0.6);
  border: 1px solid var(--border-subtle);
  color: var(--cream);
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 300;
  letter-spacing: 0.03em;
  padding: 0.8rem 1rem;
  border-radius: 0;
  transition: border-color var(--transition-base), background var(--transition-base);
  -webkit-appearance: none;
  appearance: none;
}

.form-field textarea {
  resize: vertical;
  min-height: 84px;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--text-dim);
  opacity: 0.7;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--gold-primary);
  background: rgba(10, 10, 10, 0.85);
}

.form-field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23c9a96e' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.4rem;
  cursor: pointer;
}

.form-field input.invalid,
.form-field select.invalid {
  border-color: #c0563f;
}

.form-submit {
  width: 100%;
  margin-top: var(--space-xs);
  cursor: pointer;
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-result {
  margin-top: var(--space-sm);
  padding: 0.85rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  border-left: 2px solid var(--gold-primary);
  background: rgba(201, 169, 110, 0.08);
  color: var(--cream);
}

.form-result.error {
  border-left-color: #c0563f;
  background: rgba(192, 86, 63, 0.1);
  color: #e8a894;
}

.contact-info {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
  flex-wrap: wrap;
}

.contact-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.contact-label {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.contact-value {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--cream);
  letter-spacing: 0.06em;
}

/* --- Footer --- */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-lg) 0 var(--space-md);
  text-align: center;
}

.footer-wordmark {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  letter-spacing: 0.2em;
  color: var(--cream);
  margin-bottom: var(--space-sm);
}

.footer-copy {
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}

/* ============================================
   Animations / 动画
   ============================================ */

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(32px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

@keyframes scrollDot {
  0% { top: 8px; opacity: 1; }
  50% { opacity: 0; transform: translateX(-50%) translateY(8px); }
  100% { top: 8px; opacity: 1; }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.15s; }
.reveal-delay-2 { transition-delay: 0.3s; }
.reveal-delay-3 { transition-delay: 0.45s; }

/* JS 未执行时的兜底：直接显示内容，避免白屏 */
.no-js .reveal {
  opacity: 1 !important;
  transform: none !important;
}

/* ============================================
   Responsive Design / 响应式
   ============================================ */

@media (max-width: 1024px) {
  .craft-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .fabric-showcase {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .fabric-details {
    padding-left: 0;
  }
}

@media (max-width: 768px) {
  :root {
    --space-xl: 4rem;
    --space-2xl: 6rem;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background: rgba(10, 10, 10, 0.97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    transition: right 0.5s var(--ease-out-expo);
  }

  .nav-links.open {
    right: 0;
  }

  .menu-toggle {
    display: flex;
  }

  .gallery {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .collection-tabs {
    gap: 2rem;
  }

  .philosophy-grid {
    grid-template-columns: 1fr;
  }

  .contact-info {
    flex-direction: column;
    gap: var(--space-md);
  }

  .craft-images {
    grid-template-columns: 1fr;
  }

  .craft-img:first-child {
    grid-column: 1;
    aspect-ratio: 3/4;
  }

  .hero-desc {
    font-size: 0.94rem;
  }
}

@media (max-width: 480px) {
  .container {
    width: 94%;
  }

  .btn-primary {
    padding: 0.85rem 2rem;
  }
}

/* ============================================
   HERO keyword line / H1 关键词
   ============================================ */
.hero-keyword {
  display: block;
  font-family: var(--font-sans);
  font-size: clamp(0.7rem, 1.1vw, 0.85rem);
  font-weight: 300;
  letter-spacing: 0.35em;
  color: var(--gold-primary);
  margin-top: var(--space-sm);
}

/* ============================================
   Advantages / 厂家实力 (GEO 友好)
   ============================================ */
.advantages {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-subtle);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.stat-item {
  text-align: center;
  padding: var(--space-md);
  border: 1px solid var(--border-subtle);
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.stat-item:hover {
  border-color: var(--gold-dim);
  transform: translateY(-6px);
}

.stat-num {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  color: var(--gold-primary);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.stat-num span {
  font-size: 0.45em;
  vertical-align: super;
  margin-left: 2px;
}

.stat-label {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--cream-muted);
}

.advantages-text {
  max-width: 760px;
  margin: var(--space-xl) auto 0;
  text-align: center;
}

.advantages-text p {
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 2;
}

/* ============================================
   FAQ / 常见问题 (GEO + 百度精选摘要)
   ============================================ */
.faq {
  background: var(--bg-secondary);
}

.faq-list {
  margin-top: var(--space-xl);
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-subtle);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: var(--space-md) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  color: var(--cream);
  letter-spacing: 0.04em;
  transition: color var(--transition-base);
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary:hover {
  color: var(--gold-primary);
}

.faq-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  position: relative;
  transition: transform var(--transition-base);
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--gold-primary);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.faq-icon::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
  transform: translateY(-50%);
}

.faq-icon::after {
  left: 50%;
  top: 0;
  width: 1px;
  height: 100%;
  transform: translateX(-50%);
}

.faq-item[open] .faq-icon::after {
  opacity: 0;
  transform: translateX(-50%) scaleY(0);
}

.faq-item[open] summary {
  color: var(--gold-primary);
}

.faq-answer {
  padding: 0 0 var(--space-md);
  color: var(--text-secondary);
  font-size: 0.94rem;
  line-height: 2;
  max-width: 92%;
}

.faq-answer a {
  color: var(--gold-primary);
  border-bottom: 1px solid var(--gold-dim);
}

/* ============================================
   Enhanced Footer / 强化页脚
   ============================================ */
.footer {
  background: #060606;
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-xl) 0 var(--space-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
  gap: var(--space-lg);
  text-align: left;
}

.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--gold-primary);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.footer-brand-name {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  letter-spacing: 0.16em;
  color: var(--cream);
  margin-bottom: var(--space-sm);
}

.footer-brand-desc {
  font-size: 0.86rem;
  color: var(--text-dim);
  line-height: 1.9;
  max-width: 34ch;
}

.footer-col ul li {
  margin-bottom: 0.7rem;
}

.footer-col ul li a,
.footer-col ul li span {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 300;
  transition: color var(--transition-base);
  line-height: 1.6;
}

.footer-col ul li a:hover {
  color: var(--gold-primary);
}

.footer-contact-line {
  display: flex;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 0.7rem;
  line-height: 1.6;
}

.footer-contact-line .label {
  color: var(--text-dim);
  min-width: 56px;
  flex-shrink: 0;
}

.footer-contact-line .value {
  color: var(--cream-muted);
}

.footer-phone {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--gold-primary);
  letter-spacing: 0.04em;
  display: inline-block;
  margin-bottom: var(--space-sm);
}

.footer-bottom {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-copy {
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  line-height: 1.8;
}

.footer-links {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  transition: color var(--transition-base);
}

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

/* --- 友情链接 --- */
.friend-links-wrap {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
}

.friend-title {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--gold-primary);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.friend-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.6rem;
}

.friend-links a {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 300;
  letter-spacing: 0.04em;
  transition: color var(--transition-base);
}

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

/* ============================================
   Responsive additions
   ============================================ */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg) var(--space-md);
  }
}

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

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .faq-answer {
    max-width: 100%;
  }

  .advantages-text {
    margin-top: var(--space-lg);
  }

  .appointment-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .appointment-info .section-title {
    text-align: left;
  }
}

@media (max-width: 540px) {
  .form-row {
    grid-template-columns: 1fr;
  }

  .appointment-form {
    padding: var(--space-md);
  }
}