/* ============================================================
   LUMIÈRE 咖啡烘焙
   温暖质感 · 奶油底色 · 手写标题 · 插画感
   ============================================================ */
:root {
  --bg: #faf4ea;
  --bg-2: #f2e7d6;
  --bg-3: #e9dbc6;
  --ink: #3b2a1d;
  --ink-2: #6f5a48;
  --ink-3: #9d8871;
  --line: rgba(59, 42, 29, .14);
  --line-2: rgba(59, 42, 29, .26);
  --bean: #c47a3e;
  --bean-dark: #a8623a;
  --leaf: #7d8f5f;

  --serif: "Playfair Display", "Didot", "Times New Roman", "Songti SC", serif;
  --script: "Caveat", "Segoe Script", "Brush Script MT", cursive;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;

  --max: 1160px;
  --ease: cubic-bezier(.2, .7, .3, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }

body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; font-family: var(--serif); font-weight: 400; line-height: 1.15; }
p { margin: 0; }
svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }

.shell { width: min(var(--max), 100% - 52px); margin-inline: auto; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 48px; padding: 0 28px; border-radius: 999px;
  font-size: 14px; font-weight: 500;
  border: 1.5px solid transparent;
  transition: all .28s var(--ease);
}
.btn-sm { height: 40px; padding: 0 20px; font-size: 13px; }
.btn-lg { height: 54px; padding: 0 34px; font-size: 15px; }
.btn-block { width: 100%; }
.btn-bean { background: var(--bean); color: #fff8ef; }
.btn-bean:hover { background: var(--bean-dark); transform: translateY(-2px); box-shadow: 0 12px 24px -14px rgba(166, 98, 58, .9); }
.btn-ghost { color: var(--ink); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--ink); background: var(--ink); color: var(--bg); }

/* ---------- 头部 ---------- */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background .35s ease, border-color .35s ease, backdrop-filter .35s ease;
}
.header.scrolled {
  background: rgba(250, 244, 234, .92);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.header-inner { height: 88px; display: flex; align-items: center; gap: 44px; }

.brand { display: flex; flex-direction: column; gap: 2px; line-height: 1; }
.brand-name {
  font-family: var(--serif); font-size: 21px; letter-spacing: .18em; color: var(--ink);
}
.brand-sub {
  font-family: var(--sans); font-size: 8.5px; letter-spacing: .32em;
  color: var(--ink-3); text-transform: uppercase;
}

.nav { display: flex; gap: 34px; margin-left: auto; }
.nav a {
  font-size: 13.5px; color: var(--ink-2); position: relative;
  transition: color .2s ease;
}
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 1.5px;
  background: var(--bean); transition: width .3s var(--ease);
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after { width: 100%; }

.header-right { display: flex; align-items: center; gap: 12px; margin-left: auto; }

.lang-btn {
  display: inline-flex; align-items: center; gap: 4px;
  height: 32px; padding: 0 12px; border-radius: 999px;
  background: transparent; border: 1.5px solid var(--line-2);
  color: var(--ink-3); font-size: 11.5px; font-weight: 600; letter-spacing: .05em;
  transition: all .25s ease;
}
.lang-btn:hover { border-color: var(--bean); color: var(--bean-dark); }
.lang-cur { color: var(--bean-dark); }
.lang-sep { opacity: .35; font-size: 11px; }
.lang-alt { opacity: .55; }

.burger { display: none; width: 38px; height: 34px; background: none; border: 0; padding: 8px; }
.burger span { display: block; height: 1.6px; background: var(--ink); margin-bottom: 7px; transition: .3s; }
.burger span:last-child { margin-bottom: 0; }

.mobile-nav {
  display: none; flex-direction: column;
  background: rgba(250, 244, 234, .98); border-bottom: 1px solid var(--line);
  max-height: 0; overflow: hidden; transition: max-height .4s var(--ease);
}
.mobile-nav.open { max-height: 340px; }
.mobile-nav a { padding: 17px 26px; font-size: 15px; color: var(--ink-2); border-bottom: 1px solid var(--line); }

/* ---------- Hero ---------- */
.hero { padding: 158px 0 100px; }
.hero-copy { position: relative; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; }

.eyebrow {
  display: inline-block; font-family: var(--script); font-size: 24px;
  color: var(--bean); margin-bottom: 18px;
}
.hero h1 { font-size: clamp(40px, 5.8vw, 72px); line-height: 1.05; }
.script {
  font-family: var(--script); font-size: 1.18em; color: var(--bean-dark);
  display: inline-block; margin-top: -6px;
}
.hero-sub { margin-top: 26px; max-width: 440px; font-size: 15.5px; line-height: 1.95; color: var(--ink-2); }
.hero-actions { display: flex; gap: 13px; margin-top: 36px; flex-wrap: wrap; }

.hero-note {
  display: inline-flex; align-items: center; gap: 10px; margin-top: 30px;
  padding: 10px 18px; border-radius: 999px;
  background: var(--bg-2); border: 1px solid var(--line);
  font-size: 12.5px; color: var(--ink-2);
}
.dot-bean {
  width: 8px; height: 12px; border-radius: 50%; background: var(--bean);
  transform: rotate(-22deg); flex: none;
}

.hero-art svg { width: 100%; height: auto; }

/* ---------- 区块 ---------- */
.section { padding: 110px 0; }
.beans { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.sec-head { max-width: 620px; margin-bottom: 56px; }
.sec-head h2 { font-size: clamp(30px, 4vw, 46px); }
.sec-sub { margin-top: 20px; font-size: 15px; line-height: 1.9; color: var(--ink-2); }

/* 豆子卡 */
.bean-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.bean-card {
  background: var(--bg); border: 1px solid var(--line); border-radius: 999px 999px 10px 10px;
  overflow: hidden; transition: transform .4s var(--ease), box-shadow .4s ease;
}
.bean-card:hover { transform: translateY(-6px); box-shadow: 0 26px 50px -34px rgba(59, 42, 29, .55); }
.bean-art { overflow: hidden; }
.bean-art svg { width: 100%; height: auto; transition: transform .8s var(--ease); }
.bean-card:hover .bean-art svg { transform: scale(1.04); }
.bean-body { padding: 28px 26px 30px; }
.bean-origin {
  font-size: 11px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--bean-dark); display: block; margin-bottom: 10px;
}
.bean-body h3 { font-size: 21px; margin-bottom: 12px; }
.bean-body p { font-size: 13.5px; line-height: 1.85; color: var(--ink-2); }
.bean-notes { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 20px; }
.bean-notes span {
  padding: 5px 13px; border-radius: 999px;
  background: var(--bg-2); border: 1px solid var(--line);
  font-size: 11.5px; color: var(--ink-2);
}

/* 烘焙 */
.roast-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: center; }
.roast-art { display: grid; place-items: center; }
.roast-art svg { width: 100%; max-width: 400px; height: auto; }
.roast-copy h2 { font-size: clamp(30px, 4vw, 46px); margin-bottom: 40px; }
.roast-steps { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 32px; }
.roast-steps li { display: flex; gap: 22px; }
.rs-n {
  font-family: var(--serif); font-size: 14px; color: var(--bean);
  letter-spacing: .1em; flex: none; padding-top: 5px;
}
.roast-steps h3 { font-size: 19px; margin-bottom: 9px; }
.roast-steps p { font-size: 13.8px; line-height: 1.85; color: var(--ink-2); }

/* 门店 */
.stores { border-top: 1px solid var(--line); }
.store-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.store {
  position: relative; padding: 28px 26px; border-radius: 10px;
  background: var(--bg-2); border: 1px solid var(--line);
  transition: all .3s var(--ease);
}
.store:hover { background: var(--bg-3); transform: translateY(-4px); }
.store-tag {
  position: absolute; top: 20px; right: 20px;
  font-size: 10.5px; letter-spacing: .1em; color: var(--bean-dark);
  border: 1px solid var(--bean); padding: 3px 9px; border-radius: 999px;
}
.store h3 { font-size: 18px; margin-bottom: 12px; }
.store p { font-size: 13px; line-height: 1.9; color: var(--ink-2); }

/* CTA */
.cta-sec { padding: 100px 0 120px; }
.cta-box {
  text-align: center; padding: 70px 36px; border-radius: 24px;
  background: var(--bg-3); border: 1px solid var(--line);
}
.cta-box h2 { font-size: clamp(28px, 3.8vw, 44px); margin-bottom: 18px; }
.cta-box p { font-size: 14.5px; color: var(--ink-2); margin-bottom: 32px; }

/* 页脚 */
.footer { border-top: 1px solid var(--line); padding: 50px 0; }
.footer-inner { display: flex; justify-content: space-between; gap: 28px; flex-wrap: wrap; align-items: center; }
.footer-desc { margin-top: 12px; font-size: 12.5px; color: var(--ink-3); }
.footer-right { text-align: right; font-size: 12.5px; color: var(--ink-3); line-height: 2; }

/* 动效 */
.reveal {
  opacity: 0; transform: translateY(26px);
  transition: opacity .9s var(--ease) var(--d, 0s), transform .9s var(--ease) var(--d, 0s);
}
.reveal.in { opacity: 1; transform: none; }
[data-i18n] { transition: opacity .2s ease; }
body.lang-switching [data-i18n] { opacity: .3; transition: opacity .15s ease; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .nav { display: none; }
  .burger { display: block; }
  .mobile-nav { display: flex; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-art { order: -1; max-width: 360px; margin-inline: auto; }
  .bean-grid { grid-template-columns: repeat(2, 1fr); }
  .roast-grid { grid-template-columns: 1fr; gap: 44px; }
  .roast-art { max-width: 320px; margin-inline: auto; }
  .store-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .shell { width: calc(100% - 36px); }
  .header-inner { height: 72px; }
  .header-right .btn { display: none; }
  .hero { padding: 120px 0 64px; }
  .section { padding: 72px 0; }
  .bean-grid, .store-grid { grid-template-columns: 1fr; }
  .bean-card { border-radius: 200px 200px 10px 10px; }
  .cta-box { padding: 46px 22px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-right { text-align: left; }
  .hero-actions .btn { flex: 1; min-width: 150px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}