/* ============================================================
   月华诗 YUE HUA SHI — Minimal & Elegant Stylesheet
   Inspired by esteelauder.com.cn
   ============================================================ */

:root {
  --c-bg: #ffffff;
  --c-bg-alt: #faf8f5;
  --c-bg-dark: #0e0e10;
  --c-ink: #1a1a1a;
  --c-ink-soft: #4a4a4a;
  --c-muted: #8a8a8a;
  --c-line: #e9e6e1;
  --c-accent: #b08d57;  /* warm champagne gold */
  --c-accent-deep: #8a6a3b;
  --c-gold-soft: #d8c4a1;

  --ff-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  --ff-serif: "Cormorant Garamond", "Noto Serif SC", "Source Han Serif SC", "STSong", "Songti SC", serif;

  --container: 1280px;
  --gutter: clamp(20px, 4vw, 60px);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 40px;
  --space-5: 64px;
  --space-6: 96px;

  --radius: 0px;
  --shadow: 0 8px 30px rgba(0, 0, 0, .06);
  --ease: cubic-bezier(.2, .7, .2, 1);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--ff-sans);
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-ink);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease), opacity .25s var(--ease); }
a:hover { color: var(--c-accent-deep); }
ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; cursor: pointer; border: 0; background: transparent; }

h1, h2, h3, h4, h5 {
  font-family: var(--ff-serif);
  font-weight: 400;
  color: var(--c-ink);
  margin: 0 0 .6em;
  letter-spacing: .02em;
}
h1 { font-size: clamp(2.4rem, 5vw, 4rem); line-height: 1.15; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.6rem); line-height: 1.25; }
h3 { font-size: 1.15rem; line-height: 1.4; }
p { margin: 0 0 1em; color: var(--c-ink-soft); }

.eyebrow {
  font-family: var(--ff-sans);
  font-size: 11px;
  letter-spacing: .35em;
  font-weight: 500;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 1.2em;
}

.lead {
  font-family: var(--ff-serif);
  font-size: 1.15rem;
  color: var(--c-ink-soft);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-size: 13px;
  letter-spacing: .2em;
  text-transform: uppercase;
  border: 1px solid var(--c-ink);
  background: var(--c-ink);
  color: #fff !important;
  transition: all .3s var(--ease);
  cursor: pointer;
}
.btn:hover { background: var(--c-accent-deep); border-color: var(--c-accent-deep); color: #fff !important; }
.btn-ghost { background: transparent; color: var(--c-ink) !important; }
.btn-ghost:hover { background: var(--c-ink); color: #fff !important; }
.btn-link {
  display: inline-block;
  border: 0;
  background: transparent;
  color: var(--c-ink) !important;
  padding: 6px 0;
  border-bottom: 1px solid var(--c-ink);
  letter-spacing: .15em;
  font-size: 13px;
  text-transform: uppercase;
}
.btn-link:hover { color: var(--c-accent-deep) !important; border-color: var(--c-accent-deep); }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .95);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow .3s var(--ease);
}
.site-header.is-scrolled { box-shadow: 0 1px 24px rgba(0, 0, 0, .04); }

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1;
}
.brand-cn {
  font-family: var(--ff-serif);
  font-size: 26px;
  letter-spacing: .25em;
  color: var(--c-ink);
}
.brand-en {
  font-family: var(--ff-serif);
  font-size: 10px;
  letter-spacing: .45em;
  color: var(--c-accent);
  margin-top: 4px;
}

.main-nav ul {
  display: flex;
  gap: clamp(20px, 3vw, 44px);
}
.main-nav a {
  position: relative;
  font-size: 14px;
  letter-spacing: .15em;
  padding: 8px 0;
  color: var(--c-ink);
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--c-accent);
  transition: all .3s var(--ease);
  transform: translateX(-50%);
}
.main-nav a:hover::after,
.main-nav a.is-active::after { width: 100%; }
.main-nav a.is-active { color: var(--c-accent-deep); }

.nav-toggle {
  display: none;
  width: 32px;
  height: 32px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}
.nav-toggle span { display: block; width: 22px; height: 1px; background: var(--c-ink); transition: transform .25s var(--ease), opacity .25s var(--ease); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: clamp(620px, 88vh, 880px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: var(--space-6) var(--gutter);
  color: var(--c-ink);
  background: #faf6ee;
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: url("../images/hero-bg.svg");
  background-size: cover;
  background-position: center 65%;
  background-repeat: no-repeat;
  opacity: 0.7;            /* 整体降低透明度，使产品图融入背景 */
  transform: scale(1.02);
  animation: heroFloat 26s ease-in-out infinite alternate;
}
@keyframes heroFloat {
  from { transform: scale(1.02) translateY(0); }
  to   { transform: scale(1.05) translateY(-10px); }
}
.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 35%, rgba(255,255,255,.85) 0%, rgba(255,255,255,.55) 30%, rgba(255,255,255,0) 60%),
    linear-gradient(180deg, rgba(251,244,230,.85) 0%, rgba(251,244,230,0) 30%, rgba(251,244,230,0) 60%, rgba(234,217,182,.6) 100%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  color: var(--c-ink);
}
.hero-title {
  font-family: var(--ff-serif);
  font-weight: 300;
  font-size: clamp(2.8rem, 6.5vw, 5.4rem);
  line-height: 1.1;
  letter-spacing: .04em;
  margin: 0 0 .6em;
  color: var(--c-ink);
  text-shadow: 0 1px 24px rgba(255, 248, 235, .9);
}
.hero-sub {
  font-family: var(--ff-serif);
  font-size: 1.2rem;
  color: var(--c-ink-soft);
  max-width: 560px;
  margin: 0 auto 2em;
  text-shadow: 0 1px 16px rgba(255, 248, 235, .9);
}
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ===== Sections ===== */
.section {
  padding: var(--space-6) var(--gutter);
  max-width: var(--container);
  margin: 0 auto;
}
.section-head {
  text-align: center;
  margin-bottom: var(--space-5);
}
.section-head h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: .1em;
}
.section-more { text-align: center; margin-top: var(--space-4); }

/* ===== Grid ===== */
.grid {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
}
.grid-products { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-news { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-values { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* ===== Cards ===== */
.card {
  display: block;
  background: var(--c-bg);
  overflow: hidden;
  position: relative;
}
.card-image {
  aspect-ratio: 3 / 4;
  background: var(--c-bg-alt);
  overflow: hidden;
  position: relative;
}
.card-news .card-image { aspect-ratio: 4 / 3; }
.card-image img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .8s var(--ease);
}
.card:hover .card-image img { transform: scale(1.05); }

.placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, #f5e8ce 0%, #e8d5b0 100%);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--ff-serif);
  font-size: 3rem;
  color: rgba(138, 106, 59, .4);
  letter-spacing: .1em;
}
.placeholder-lg { font-size: 5rem; }
.placeholder-news {
  background: linear-gradient(135deg, #ede4d2 0%, #d4c2a3 100%);
  font-size: 1.5rem;
}
.placeholder-date { font-family: var(--ff-serif); }

.card-body {
  padding: 20px 0;
  text-align: center;
}
.card-body h3 {
  font-size: 1.1rem;
  margin-bottom: 6px;
  letter-spacing: .04em;
}
.card-body .subtitle {
  font-size: 13px;
  color: var(--c-muted);
  margin-bottom: 8px;
  letter-spacing: .05em;
}
.card-body .price {
  font-family: var(--ff-serif);
  font-size: 1.05rem;
  color: var(--c-accent-deep);
  margin: 0;
}
.card-body .meta {
  font-size: 11px;
  letter-spacing: .15em;
  color: var(--c-muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.card-body .excerpt {
  font-size: 13px;
  color: var(--c-ink-soft);
  margin-top: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-news .card-body { text-align: left; }

/* ===== Story Section ===== */
.section-story {
  background: var(--c-bg-alt);
  max-width: 100%;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}
.story-wrap {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: center;
}
.story-text h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.story-excerpt {
  font-family: var(--ff-serif);
  font-size: 1.1rem;
  line-height: 1.9;
  color: var(--c-ink-soft);
  margin-bottom: 2em;
}
.story-image .story-frame {
  aspect-ratio: 4 / 5;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.75) 0%, rgba(255,255,255,0.9) 100%),
    url('https://images.unsplash.com/photo-1596462502278-27bfdc403348?q=80&w=1000&auto=format&fit=crop') center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border-radius: 8px;
  overflow: hidden;
}
.story-quote {
  font-family: var(--ff-serif);
  font-size: 1.6rem;
  text-align: center;
  color: #4a3518;
  letter-spacing: .08em;
  line-height: 2;
  padding: 0 40px;
  position: relative;
  z-index: 1;
}

/* ===== Shop banner ===== */
.section-shop { padding: var(--space-6) var(--gutter); max-width: 100%; }
.shop-banner {
  max-width: var(--container);
  margin: 0 auto;
  background: linear-gradient(135deg, #0e0e10 0%, #2a2419 100%);
  color: #fff;
  text-align: center;
  padding: var(--space-6) var(--gutter);
  position: relative;
  overflow: hidden;
}
.shop-banner::before {
  content: "";
  position: absolute;
  top: -50%; right: -10%;
  width: 60%; height: 200%;
  background: radial-gradient(ellipse, rgba(216, 196, 161, .2), transparent 60%);
}
.shop-banner > * { position: relative; z-index: 1; }
.shop-banner h2 { color: #fff; }
.shop-banner p { color: rgba(255,255,255,.7); }
.shop-banner .btn { background: var(--c-accent); border-color: var(--c-accent); }
.shop-banner .btn:hover { background: #fff; border-color: #fff; color: var(--c-ink) !important; }

/* ===== Page Hero ===== */
.page-hero {
  text-align: center;
  padding: var(--space-6) var(--gutter) var(--space-5);
  background: linear-gradient(180deg, #faf6ee 0%, #fff 100%);
}
.page-hero h1 {
  font-weight: 300;
  letter-spacing: .15em;
  margin-bottom: .5em;
}
.page-hero .lead { max-width: 640px; margin: 0 auto; }
.hero-story { background: linear-gradient(180deg, #f3ece0 0%, #fff 100%); }

/* ===== Filter chips ===== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: var(--space-5);
}
.filter-chip {
  display: inline-block;
  padding: 8px 22px;
  border: 1px solid var(--c-line);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--c-ink-soft);
  transition: all .25s var(--ease);
}
.filter-chip:hover, .filter-chip.is-active {
  background: var(--c-ink);
  color: #fff;
  border-color: var(--c-ink);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  max-width: var(--container);
  margin: 0 auto;
  padding: 20px var(--gutter);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-muted);
}
.breadcrumb a { color: var(--c-muted); }
.breadcrumb a:hover { color: var(--c-accent-deep); }
.breadcrumb span { color: var(--c-ink); }

/* ===== Product detail ===== */
.product-detail {
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--space-4) var(--gutter);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: center;
}
.pd-image { background: var(--c-bg-alt); aspect-ratio: 1 / 1; overflow: hidden; }
.pd-image img { width: 100%; height: 100%; object-fit: cover; }
.pd-info h1 { font-size: clamp(2rem, 4vw, 2.8rem); margin-bottom: .3em; }
.pd-sub {
  font-family: var(--ff-serif);
  font-size: 1.25rem;
  color: var(--c-ink-soft);
  margin-bottom: 1.2em;
}
.pd-price {
  font-family: var(--ff-serif);
  font-size: 1.6rem;
  color: var(--c-accent-deep);
  margin-bottom: 1.5em;
}
.pd-summary { font-size: 15px; line-height: 1.9; margin-bottom: 2em; }
.pd-cta { display: flex; gap: 16px; flex-wrap: wrap; }

.pd-content { max-width: 820px; margin: 0 auto; }

/* ===== Article ===== */
.article {
  max-width: 820px;
  margin: 0 auto;
  padding: var(--space-4) var(--gutter) var(--space-6);
}
.article-head { text-align: center; margin-bottom: var(--space-5); }
.article-head h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
.article-head .meta {
  font-size: 12px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--c-muted);
}
.article-cover { margin: var(--space-4) 0; }
.article-cover img { width: 100%; }
.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: var(--space-5);
  padding-top: var(--space-3);
  border-top: 1px solid var(--c-line);
  font-size: 13px;
}
.article-nav a { color: var(--c-ink); letter-spacing: .05em; }

/* ===== Prose ===== */
.prose { font-size: 16px; line-height: 1.95; color: var(--c-ink-soft); }
.prose h2, .prose h3 { color: var(--c-ink); margin-top: 1.4em; }
.prose h3 { font-size: 1.4rem; }
.prose p { margin-bottom: 1.2em; }
.prose ul, .prose ol { padding-left: 1.5em; margin-bottom: 1.2em; }
.prose li { margin-bottom: .4em; }
.prose strong { color: var(--c-ink); font-weight: 600; }

/* ===== Story detail ===== */
.story-detail {
  max-width: 820px;
  margin: 0 auto;
  font-size: 17px;
  line-height: 2;
}

/* ===== Values cards ===== */
.section-values, .section-promise { background: var(--c-bg-alt); max-width: 100%; }
.section-values .grid-values, .section-promise .grid-values {
  max-width: var(--container);
  margin: 0 auto;
}
.value-card {
  text-align: center;
  padding: var(--space-4) var(--space-3);
}
.value-num {
  display: block;
  font-family: var(--ff-serif);
  font-size: 2rem;
  color: var(--c-accent);
  margin-bottom: .5em;
  letter-spacing: .1em;
}
.value-card h3 { font-size: 1.2rem; margin-bottom: .6em; }
.value-card p { font-size: 14px; }

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}
.contact-card {
  background: var(--c-bg-alt);
  text-align: center;
  padding: var(--space-4) var(--space-3);
}
.contact-card h3 {
  font-family: var(--ff-sans);
  font-size: 12px;
  letter-spacing: .25em;
  color: var(--c-muted);
  text-transform: uppercase;
  margin-bottom: 1em;
}
.contact-card .big {
  font-family: var(--ff-serif);
  font-size: 1.4rem;
  color: var(--c-ink);
  margin-bottom: .3em;
}
.contact-card p:last-child {
  font-size: 13px;
  color: var(--c-muted);
}
.contact-content { max-width: 820px; margin: 0 auto; }

/* ===== Footer ===== */
.site-footer {
  background: var(--c-bg-dark);
  color: rgba(255, 255, 255, .7);
  margin-top: var(--space-6);
}
.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--space-5) var(--gutter) var(--space-4);
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--space-4);
}
.site-footer .brand-cn { color: #fff; }
.site-footer .brand-en { color: var(--c-gold-soft); }
.footer-slogan {
  font-family: var(--ff-serif);
  font-size: 1rem;
  color: rgba(255,255,255,.6);
  margin-top: var(--space-2);
}
.footer-col h4 {
  font-family: var(--ff-sans);
  font-size: 12px;
  letter-spacing: .25em;
  color: var(--c-gold-soft);
  text-transform: uppercase;
  margin-bottom: 1.2em;
}
.footer-col ul li {
  margin-bottom: 10px;
  font-size: 13px;
}
.footer-col a { color: rgba(255,255,255,.7); }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  text-align: center;
  padding: var(--space-3) var(--gutter);
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: 12px;
  color: rgba(255,255,255,.4);
}

.empty {
  text-align: center;
  padding: var(--space-5) 0;
  color: var(--c-muted);
  grid-column: 1 / -1;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .main-nav.is-open {
    display: block;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: #fff;
    padding: 20px var(--gutter);
    border-bottom: 1px solid var(--c-line);
  }
  .main-nav.is-open ul { flex-direction: column; gap: 16px; }
  .story-wrap, .product-detail { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-inner { grid-template-columns: 1fr; }
  .grid-products { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .card-body h3 { font-size: 1rem; }
}