/* ============================================================
   Anvolawe — 现代极简画廊 Design System
   ============================================================ */
:root {
  --bg: #ffffff;
  --bg-soft: #fafafa;
  --ink: #1a1a1a;
  --ink-soft: #6b6b6b;
  --ink-faint: #9a9a9a;
  --line: #ebebeb;
  --line-strong: #dcdcdc;
  --accent: #1a1a1a;
  --paper: #f4f2ee;
  --radius: 2px;
  --font-display: "Georgia", "Palatino Linotype", "Songti SC", "Noto Serif CJK SC", serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Microsoft YaHei", "Noto Sans CJK SC", Roboto, Helvetica, Arial, sans-serif;
  --maxw: 1200px;
  --pad: clamp(20px, 5vw, 64px);
  --section: 96px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ---------------- Layout ---------------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }
.section { padding: var(--section) 0; }
.section.soft { background: var(--bg-soft); }
.section.paper { background: var(--paper); }

/* ---------------- Typography ---------------- */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 400; line-height: 1.15; letter-spacing: -0.01em; margin: 0; }
.display { font-size: clamp(38px, 6vw, 76px); }
.h2 { font-size: clamp(28px, 4vw, 46px); }
.h3 { font-size: clamp(20px, 2.4vw, 26px); }
.eyebrow {
  font-size: 11px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--ink-faint); font-weight: 600; margin: 0 0 18px;
}
.lead { font-size: clamp(16px, 1.6vw, 19px); color: var(--ink-soft); max-width: 56ch; }
.muted { color: var(--ink-soft); }

/* ---------------- Header / Nav ---------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.88);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; flex-direction: column; line-height: 1; }
.brand .logo { font-family: var(--font-display); font-size: 22px; letter-spacing: .04em; }
.brand .tag { font-size: 10px; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-faint); margin-top: 4px; }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a { font-size: 14px; color: var(--ink-soft); transition: color .2s; position: relative; padding: 4px 0; }
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 1px; background: var(--ink);
}
.nav-right { display: flex; align-items: center; gap: 16px; }
.lang-select {
  font-size: 13px; border: 1px solid var(--line-strong); background: #fff;
  border-radius: var(--radius); padding: 6px 10px; color: var(--ink);
}
.cart-link { position: relative; display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--ink); }
.cart-count {
  min-width: 18px; height: 18px; padding: 0 5px; border-radius: 9px; background: var(--ink); color: #fff;
  font-size: 11px; display: inline-flex; align-items: center; justify-content: center; line-height: 1;
}
.nav-toggle { display: none; background: none; border: 0; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 1.5px; background: var(--ink); margin: 5px 0; transition: .25s; }

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  border: 1px solid var(--ink); background: var(--ink); color: #fff;
  padding: 13px 26px; font-size: 14px; border-radius: var(--radius); transition: .2s; letter-spacing: .02em;
}
.btn:hover { background: #000; }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { background: var(--ink); color: #fff; }
.btn.block { width: 100%; }
.btn.sm { padding: 9px 16px; font-size: 13px; }

/* ---------------- Hero ---------------- */
.hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(24px, 4vw, 56px); align-items: center; }
.hero-media { position: relative; }
.hero-media img { border-radius: var(--radius); aspect-ratio: 4/5; object-fit: cover; width: 100%; }
.hero-copy .display { margin-bottom: 22px; }
.hero-actions { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }

/* ---------------- Product grid ---------------- */
.grid { display: grid; gap: 28px; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: border-color .25s, box-shadow .25s; }
.card:hover { border-color: var(--line-strong); box-shadow: 0 14px 40px -24px rgba(0,0,0,.25); }
.card-media { position: relative; overflow: hidden; aspect-ratio: 1/1; background: var(--paper); }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s cubic-bezier(.2,.7,.2,1); }
.card:hover .card-media img { transform: scale(1.045); }
.card-tag {
  position: absolute; top: 12px; left: 12px; background: rgba(255,255,255,.9); color: var(--ink);
  font-size: 10px; letter-spacing: .14em; text-transform: uppercase; padding: 5px 9px; border-radius: var(--radius);
}
.card-body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 6px; }
.card-title { font-family: var(--font-display); font-size: 19px; }
.card-desc { font-size: 13.5px; color: var(--ink-soft); margin: 0; }
.card-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 10px; }
.price { font-size: 15px; }
.add-btn {
  border: 1px solid var(--ink); background: var(--ink); color: #fff; padding: 8px 14px; font-size: 12.5px;
  border-radius: var(--radius); opacity: 0; transform: translateY(4px); transition: .25s;
}
.card:hover .add-btn { opacity: 1; transform: none; }
.add-btn:hover { background: #000; }

/* ---------------- Craft steps ---------------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.step { background: #fff; padding: 34px 26px; }
.step .n { font-family: var(--font-display); font-size: 34px; color: var(--line-strong); }
.step h4 { font-family: var(--font-display); font-size: 20px; margin: 10px 0 10px; }
.step p { font-size: 14px; color: var(--ink-soft); margin: 0; }

/* ---------------- Story ---------------- */
.story { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 4vw, 56px); align-items: center; }
.story-media img { border-radius: var(--radius); aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.values { display: grid; gap: 20px; margin-top: 28px; }
.value { display: grid; grid-template-columns: 36px 1fr; gap: 16px; padding-top: 18px; border-top: 1px solid var(--line); }
.value .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ink); margin-top: 9px; }
.value h4 { font-family: var(--font-display); font-size: 18px; margin: 0 0 4px; }
.value p { font-size: 14px; color: var(--ink-soft); margin: 0; }

/* ---------------- Newsletter ---------------- */
.news { text-align: center; max-width: 620px; margin: 0 auto; }
.news-form { display: flex; gap: 10px; margin-top: 26px; max-width: 460px; margin-left: auto; margin-right: auto; }
.news-form input { flex: 1; border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 13px 16px; font-size: 14px; font-family: inherit; }
.news-form input:focus { outline: none; border-color: var(--ink); }
.news-note { font-size: 13px; color: var(--ink-faint); margin-top: 14px; min-height: 18px; }

/* ---------------- Footer ---------------- */
.site-footer { border-top: 1px solid var(--line); padding: 64px 0 40px; background: #fff; }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; }
.foot-grid h5 { font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: var(--ink-faint); margin: 0 0 16px; font-weight: 600; }
.foot-grid a { display: block; font-size: 14px; color: var(--ink-soft); padding: 5px 0; }
.foot-grid a:hover { color: var(--ink); }
.foot-about { font-size: 13.5px; color: var(--ink-soft); max-width: 34ch; }
.foot-bottom { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 12.5px; color: var(--ink-faint); flex-wrap: wrap; }
.foot-bottom a { color: var(--ink-faint); text-decoration: underline; }

/* ---------------- Product detail ---------------- */
.pdp { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 4vw, 64px); align-items: start; }
.pdp-gallery .main { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; aspect-ratio: 1/1; background: var(--paper); }
.pdp-gallery .main img { width: 100%; height: 100%; object-fit: cover; }
.pdp-thumbs { display: flex; gap: 10px; margin-top: 12px; }
.pdp-thumbs img { width: 76px; height: 76px; object-fit: cover; border: 1px solid var(--line); border-radius: var(--radius); cursor: pointer; }
.pdp-thumbs img.active { border-color: var(--ink); }
.pdp-copy h1 { font-family: var(--font-display); font-size: clamp(28px, 4vw, 44px); margin: 6px 0 14px; }
.pdp-price { font-size: 24px; margin: 6px 0 20px; }
.pdp-desc { color: var(--ink-soft); margin-bottom: 22px; }
.incl { border-top: 1px solid var(--line); margin-top: 8px; }
.incl li { list-style: none; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 14px; color: var(--ink-soft); display: flex; gap: 10px; }
.incl li::before { content: "—"; color: var(--ink-faint); }
.qty-row { display: flex; align-items: center; gap: 16px; margin: 24px 0; }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--line-strong); border-radius: var(--radius); }
.qty button { width: 38px; height: 42px; background: #fff; border: 0; font-size: 18px; }
.qty input { width: 46px; height: 42px; text-align: center; border: 0; border-left: 1px solid var(--line-strong); border-right: 1px solid var(--line-strong); font-size: 15px; font-family: inherit; }
.qty input:focus { outline: none; }

/* ---------------- Cart / Checkout ---------------- */
.two { display: grid; grid-template-columns: 1.5fr 1fr; gap: 40px; align-items: start; }
.line { display: grid; grid-template-columns: 72px 1fr auto; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--line); align-items: center; }
.line img { width: 72px; height: 72px; object-fit: cover; border: 1px solid var(--line); border-radius: var(--radius); }
.line .nm { font-family: var(--font-display); font-size: 17px; }
.line .meta { font-size: 13px; color: var(--ink-soft); }
.line .ctrl { display: flex; align-items: center; gap: 14px; }
.line .ln-price { font-size: 15px; min-width: 64px; text-align: right; }
.summary { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; position: sticky; top: 96px; }
.summary h3 { font-family: var(--font-display); font-size: 22px; margin-bottom: 18px; }
.sum-row { display: flex; justify-content: space-between; padding: 9px 0; font-size: 14px; }
.sum-row.total { border-top: 1px solid var(--line-strong); margin-top: 8px; padding-top: 14px; font-size: 17px; }
.sum-row .free { color: #2e7d32; }
.promo { display: flex; gap: 8px; margin: 16px 0; }
.promo input { flex: 1; border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 10px; font-size: 13px; font-family: inherit; text-transform: uppercase; }
.promo input:focus { outline: none; border-color: var(--ink); }
.promo-msg { font-size: 12.5px; min-height: 16px; margin: -8px 0 10px; }
.empty { text-align: center; padding: 80px 0; color: var(--ink-soft); }
.empty .btn { margin-top: 20px; }

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field label { font-size: 12px; letter-spacing: .04em; color: var(--ink-soft); }
.field input { border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 12px 14px; font-size: 14px; font-family: inherit; }
.field input:focus { outline: none; border-color: var(--ink); }
.field.error input { border-color: #c0392b; }
.field .err { font-size: 12px; color: #c0392b; min-height: 0; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.terms { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--ink-soft); margin: 8px 0 18px; }
.terms.error { color: #c0392b; }

/* ---------------- Contact ---------------- */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px,4vw,56px); }
.contact-info .ci { padding: 16px 0; border-bottom: 1px solid var(--line); }
.contact-info .ci .k { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); }
.contact-info .ci .v { font-size: 16px; margin-top: 4px; }

/* ---------------- Reveal ---------------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------------- Responsive ---------------- */
@media (max-width: 980px) {
  .hero, .story, .pdp, .two, .contact { grid-template-columns: 1fr; }
  .grid.cols-3, .grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .summary { position: static; }
}
@media (max-width: 720px) {
  .nav-links { position: fixed; inset: 68px 0 auto 0; background: #fff; border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: flex-start; gap: 0; padding: 8px var(--pad) 18px; transform: translateY(-130%); transition: .3s; box-shadow: 0 20px 40px -30px rgba(0,0,0,.3); }
  .nav-links.open { transform: none; }
  .nav-links a { padding: 14px 0; width: 100%; border-bottom: 1px solid var(--line); }
  .nav-toggle { display: block; }
  .cart-label { display: none; }
  .nav-right { gap: 10px; }
  .add-btn { opacity: 1; transform: none; }
  .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  .news-form { flex-direction: column; }
  .row2 { grid-template-columns: 1fr; }
}