/* ============================================
   OSHLANT — 美式奢华家庭风格
   Baking Joy, Every Scoop
   ============================================ */

:root {
  --color-primary: #C9A96E;       /* 香槟金 - 主色 */
  --color-primary-dark: #B89650;  /* 深金色 */
  --color-primary-light: #F5EFE0; /* 金色浅色背景 */
  --color-gold: #C9A96E;         /* 金属金 - 点缀 */
  --color-gold-light: #E8DCC4;
  --color-bg: #FEFCF8;            /* 暖白 */
  --color-bg-alt: #F6F0E6;        /* 奶油色 */
  --color-text: #1C1512;          /* 深咖啡 */
  --color-text-light: #8A7A6A;
  --color-white: #FFFFFF;
  --color-border: #E5D9C8;
  --color-footer: #1C1512;
  --color-footer-text: #A89888;

  --font-heading: "Palatino Linotype", Georgia, "Times New Roman", serif;
  --font-sans: "Helvetica Neue", -apple-system, BlinkMacSystemFont, "Microsoft YaHei", "微软雅黑", Arial, sans-serif;

  --max-width: 1200px;
  --nav-height: 80px;
  --transition: 0.35s ease;
  --shadow-sm: 0 1px 3px rgba(28,21,18,0.06);
  --shadow-md: 0 4px 20px rgba(28,21,18,0.1);
  --shadow-lg: 0 8px 40px rgba(28,21,18,0.12);
  --radius: 0;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-text); text-decoration: none; transition: opacity var(--transition); }
a:hover { opacity: 0.7; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 32px; }

/* --- Navigation --- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: rgba(28,21,18,0.95);
  border-bottom: 1px solid transparent;
  z-index: 1000;
  transition: all var(--transition);
  backdrop-filter: blur(12px);
}
.navbar.scrolled { border-bottom-color: var(--color-border); }
.navbar .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%;
}
.nav-brand {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 4px;
}
.nav-brand:hover { opacity: 0.8; }
.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a {
  font-size: 0.8rem;
  color: var(--color-footer-text);
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  position: relative;
  padding: 4px 0;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--color-gold);
  transition: width var(--transition);
}
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--color-gold); }
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 4px; background: none; border: none;
}
.nav-toggle span {
  display: block; width: 24px; height: 1.5px;
  background: var(--color-white); transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 40px;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid var(--color-gold);
  background: transparent;
  color: var(--color-gold);
}
.btn:hover {
  background: var(--color-gold);
  color: var(--color-text);
  opacity: 1;
}
.btn-primary {
  background: var(--color-gold);
  color: var(--color-text);
  border-color: var(--color-gold);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
}

/* --- Brand Banner --- */
.brand-banner {
  padding: calc(var(--nav-height) + 60px) 0 48px;
  background: var(--color-footer);
  text-align: center;
  position: relative;
}
.brand-banner::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 60px; height: 1px;
  background: var(--color-gold);
}
.brand-banner .banner-tagline {
  font-size: 0.65rem;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 12px;
}
.brand-banner h2 {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: 12px;
  color: var(--color-white);
}
.brand-banner h2 .highlight {
  font-style: italic;
  color: var(--color-gold);
}
.brand-banner .banner-sub {
  font-size: 0.85rem;
  color: var(--color-footer-text);
  letter-spacing: 2px;
}
@media (max-width: 768px) {
  .brand-banner { padding: calc(var(--nav-height) + 40px) 0 32px; }
  .brand-banner h2 { font-size: 1.8rem; }
}

/* --- Section Common --- */
.section { padding: 80px 0; }
.section-alt { background: var(--color-bg-alt); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 400;
  margin-bottom: 12px;
  color: var(--color-text);
}
.section-header::after {
  content: '';
  display: block;
  width: 40px; height: 1px;
  background: var(--color-gold);
  margin: 0 auto;
  margin-top: 16px;
}
.section-header p {
  font-size: 1rem;
  color: var(--color-text-light);
  max-width: 540px;
  margin: 0 auto;
}

/* --- Products Grid (Home) --- */
.products-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 800px; margin: 0 auto; }
.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.product-card-image {
  aspect-ratio: 1;
  background: var(--color-primary-light);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-light); font-size: 0.9rem; text-align: center; padding: 20px;
}
.product-card-body { padding: 24px 28px 28px; }
.product-card-body h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 400;
  margin-bottom: 6px;
}
.product-card-body .spec {
  color: var(--color-text-light);
  font-size: 0.85rem; margin-bottom: 10px;
}
.product-card-body p {
  color: var(--color-text-light); font-size: 0.9rem;
  margin-bottom: 14px; line-height: 1.6;
}
.product-card-body .price { font-weight: 600; color: var(--color-text); font-size: 1rem; }
.text-center { text-align: center; margin-top: 32px; }
@media (max-width: 600px) {
  .products-grid { grid-template-columns: 1fr; }
}

/* --- Page Hero --- */
.page-hero {
  padding: calc(var(--nav-height) + 60px) 0 48px;
  background: var(--color-bg);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}
.page-hero h1 {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 400;
  margin-bottom: 10px;
}
.page-hero p { font-size: 1rem; color: var(--color-text-light); max-width: 540px; margin: 0 auto; }

/* --- Product Listing Page --- */
.prod-list-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; max-width: 900px; margin: 0 auto; }

/* --- Product Detail Page --- */
.prod-detail { padding: calc(var(--nav-height) + 40px) 0 80px; }
.back-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--color-text-light); font-size: 0.8rem;
  letter-spacing: 1px; text-transform: uppercase;
  margin-bottom: 32px;
}
.back-link:hover { color: var(--color-text); opacity: 1; }

.prod-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.prod-main .prod-image {
  aspect-ratio: 1;
  background: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem; color: var(--color-text-light); text-align: center;
  position: sticky; top: calc(var(--nav-height) + 40px);
  overflow: hidden;
}
.prod-main .prod-image img { width: 100%; height: 100%; object-fit: contain; }
.prod-main .prod-info .prod-tag {
  display: inline-block; padding: 4px 16px;
  background: var(--color-gold);
  color: var(--color-text);
  font-size: 0.65rem; letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.prod-main .prod-info h1 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: 16px;
  line-height: 1.3;
}
.prod-main .prod-info .prod-desc {
  color: var(--color-text-light);
  font-size: 1rem; line-height: 1.8; margin-bottom: 24px;
}

/* --- Product Options (Size/Color Selectors) --- */
.prod-options { margin-bottom: 28px; }
.option-group { margin-bottom: 20px; }
.option-group h3 {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-text-light);
  margin-bottom: 10px;
}
.option-select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-text);
  background: var(--color-white);
  cursor: pointer;
}
.option-select:focus { outline: none; border-color: var(--color-primary); }
.color-swatches { display: flex; gap: 10px; flex-wrap: wrap; }
.color-swatch {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}
.color-swatch:hover { transform: scale(1.1); }
.color-swatch.active { border-color: var(--color-gold); box-shadow: 0 0 0 3px rgba(201,169,110,0.3); }
.color-name { font-size: 0.75rem; color: var(--color-text-light); margin-top: 4px; text-align: center; }

/* --- Prod Specs --- */
.prod-specs { margin-bottom: 28px; }
.prod-specs h3 {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-text-light);
  margin-bottom: 12px;
}
.prod-specs table { width: 100%; border-collapse: collapse; }
.prod-specs table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}
.prod-specs table td:first-child {
  font-weight: 500; color: var(--color-text);
  width: 130px; background: var(--color-bg-alt);
}
.prod-specs table td:last-child { color: var(--color-text-light); }

/* --- Price Box --- */
.price-box {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-gold-light);
  padding: 24px 28px;
  margin-bottom: 28px;
}
.price-box .price-label {
  font-size: 0.7rem; color: var(--color-text-light);
  letter-spacing: 2px; text-transform: uppercase; margin-bottom: 4px;
}
.price-box .price-amount {
  font-family: var(--font-heading);
  font-size: 2rem; font-weight: 400; color: var(--color-gold);
}
.price-box .price-note {
  font-size: 0.8rem; color: var(--color-text-light); margin-top: 4px;
}

/* --- About this item bullets --- */
.prod-bullets { margin-bottom: 28px; }
.prod-bullets h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 400;
  margin-bottom: 16px;
  color: var(--color-text);
}
.prod-bullets ul li {
  padding: 10px 0;
  color: var(--color-text-light); font-size: 0.9rem;
  border-bottom: 1px solid var(--color-border);
  line-height: 1.7;
}
.prod-bullets ul li:last-child { border-bottom: none; }
.prod-bullets ul li strong { color: var(--color-text); }

/* --- Features (Home) --- */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card {
  background: var(--color-white);
  padding: 40px 32px;
  border-radius: var(--radius);
  text-align: center;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.feature-icon { font-size: 2.4rem; margin-bottom: 16px; display: block; }
.feature-card h3 { font-family: var(--font-heading); font-size: 1.1rem; font-weight: 400; margin-bottom: 10px; }
.feature-card p { color: var(--color-text-light); font-size: 0.9rem; line-height: 1.7; }
@media (max-width: 768px) {
  .features-grid { grid-template-columns: 1fr; }
}

/* --- About (Home) --- */
.about-teaser { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-teaser-image {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-primary-light);
}
.about-teaser-content h2 {
  font-family: var(--font-heading);
  font-size: 2rem; font-weight: 400; margin-bottom: 20px;
}
.about-teaser-content p {
  color: var(--color-text-light); margin-bottom: 16px; line-height: 1.8;
}
@media (max-width: 768px) {
  .about-teaser { grid-template-columns: 1fr; gap: 32px; }
}

/* --- About Page --- */
.about-story { max-width: 800px; margin: 0 auto; }
.about-story h2 {
  font-family: var(--font-heading);
  font-size: 1.8rem; font-weight: 400;
  margin-bottom: 20px; margin-top: 48px;
}
.about-story h2:first-child { margin-top: 0; }
.about-story p { color: var(--color-text-light); line-height: 1.9; margin-bottom: 16px; font-size: 1rem; }
.about-story .highlight-box {
  background: var(--color-primary-light);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 24px 32px;
  margin: 32px 0;
}
.about-story .highlight-box p { margin-bottom: 0; color: var(--color-text); }
.company-info-box {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px; margin-top: 48px;
}
.company-info-box h3 { font-family: var(--font-heading); font-size: 1.15rem; font-weight: 400; margin-bottom: 20px; }
.company-info-box .info-row {
  display: flex; gap: 12px;
  padding: 10px 0; border-bottom: 1px solid var(--color-border);
}
.company-info-box .info-row:last-child { border-bottom: none; }
.company-info-box .info-label { font-weight: 500; min-width: 80px; color: var(--color-primary-dark); }
.company-info-box .info-value { color: var(--color-text-light); }

/* --- Contact Page --- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.contact-info-section h2 { font-family: var(--font-heading); font-size: 1.5rem; font-weight: 400; margin-bottom: 28px; }
.contact-item { display: flex; gap: 16px; margin-bottom: 24px; }
.contact-item .contact-icon {
  font-size: 1.2rem; flex-shrink: 0;
  width: 44px; height: 44px;
  background: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.contact-item .contact-text h4 { font-size: 0.95rem; font-weight: 500; margin-bottom: 4px; }
.contact-item .contact-text p { color: var(--color-text-light); font-size: 0.85rem; line-height: 1.6; }
.contact-form {
  background: var(--color-bg-alt);
  padding: 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}
.contact-form h3 { font-family: var(--font-heading); font-size: 1.15rem; font-weight: 400; margin-bottom: 24px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 0.75rem; font-weight: 500;
  margin-bottom: 6px; color: var(--color-text);
  letter-spacing: 1px; text-transform: uppercase;
}
.form-group input, .form-group textarea {
  width: 100%; padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-family: var(--font-sans); font-size: 0.9rem;
  color: var(--color-text); background: var(--color-white);
  transition: border-color var(--transition);
}
.form-group input:focus, .form-group textarea:focus {
  outline: none; border-color: var(--color-primary);
}
.form-group textarea { resize: vertical; min-height: 120px; }

/* --- Privacy --- */
.privacy-content { max-width: 800px; margin: 0 auto; }
.privacy-content h2 {
  font-family: var(--font-heading);
  font-size: 1.4rem; font-weight: 400;
  margin-top: 40px; margin-bottom: 16px;
}
.privacy-content h2:first-child { margin-top: 0; }
.privacy-content p { color: var(--color-text-light); line-height: 1.8; margin-bottom: 16px; }
.privacy-content ul { list-style: disc; padding-left: 24px; margin-bottom: 16px; color: var(--color-text-light); line-height: 1.8; }

/* --- Related Products --- */
.related-products { margin-top: 60px; padding-top: 40px; border-top: 1px solid var(--color-border); }
.related-products h2 {
  font-family: var(--font-heading);
  font-size: 1.3rem; font-weight: 400; margin-bottom: 28px; text-align: center;
}

/* --- Footer --- */
.footer {
  background: var(--color-footer);
  color: var(--color-footer-text);
  padding: 64px 0 32px;
  margin-top: 60px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand .nav-brand { color: var(--color-white); margin-bottom: 12px; }
.footer-brand p { font-size: 0.85rem; line-height: 1.7; color: var(--color-footer-text); }
.footer h4 {
  font-family: var(--font-heading);
  font-size: 0.9rem; font-weight: 400;
  color: var(--color-white);
  margin-bottom: 20px;
  letter-spacing: 1px; text-transform: uppercase;
}
.footer-links li { margin-bottom: 12px; }
.footer-links a { color: var(--color-footer-text); font-size: 0.85rem; }
.footer-links a:hover { color: var(--color-white); opacity: 1; }
.footer-contact p { font-size: 0.85rem; margin-bottom: 8px; line-height: 1.6; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-footer-text);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .prod-main { gap: 40px; }
}
@media (max-width: 768px) {
  .container { padding: 0 24px; }
  .nav-links {
    position: fixed; top: var(--nav-height);
    left: 0; right: 0;
    background: var(--color-footer);
    flex-direction: column; padding: 32px; gap: 24px; border-bottom: 1px solid rgba(201,169,110,0.2);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%); opacity: 0; pointer-events: none;
    transition: all var(--transition);
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: all; }
  .nav-toggle { display: flex; }
  .section { padding: 56px 0; }
  .section-header h2, .page-hero h1 { font-size: 1.8rem; }
  .prod-main { grid-template-columns: 1fr; gap: 32px; }
  .prod-main .prod-image { position: static; }
  .prod-list-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .brand-banner h2 { font-size: 1.3rem; }
  .btn { padding: 12px 24px; font-size: 0.75rem; }
  .price-box .price-amount { font-size: 1.5rem; }
}