/* =========================================================================
 * Craftisan — warm, handcrafted aesthetic
 * Palette: cream / leather brown / walnut / amber accent
 * ========================================================================= */

:root {
  --bg: #fbf6ef;
  --bg-alt: #f3e9db;
  --surface: #ffffff;
  --ink: #2c2118;
  --ink-soft: #5c4a3a;
  --muted: #8a7763;
  --leather: #8b5a2b;
  --leather-dark: #6b4423;
  --wood: #a9744f;
  --amber: #c8893f;
  --amber-dark: #b06f2c;
  --line: #e7d9c6;
  --shadow: 0 18px 40px -22px rgba(60, 40, 20, 0.45);
  --shadow-sm: 0 8px 22px -14px rgba(60, 40, 20, 0.4);
  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1180px;
  --serif: "Playfair Display", "Noto Serif SC", Georgia, "Times New Roman", serif;
  --sans: "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 700; line-height: 1.18; color: var(--ink); margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1rem; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.section { padding: clamp(56px, 8vw, 104px) 0; }
.section--alt { background: var(--bg-alt); }
.section__head { text-align: center; max-width: 720px; margin: 0 auto clamp(32px, 5vw, 56px); }
.section__head p { color: var(--muted); font-size: 1.05rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--sans); font-weight: 600; font-size: .98rem;
  padding: 13px 26px; border-radius: 999px; cursor: pointer;
  border: 1.5px solid transparent; transition: transform .15s ease, background .2s ease, box-shadow .2s ease, color .2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--leather); color: #fff; box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--leather-dark); }
.btn--accent { background: var(--amber); color: #fff; }
.btn--accent:hover { background: var(--amber-dark); }
.btn--ghost { background: transparent; border-color: var(--leather); color: var(--leather); }
.btn--ghost:hover { background: var(--leather); color: #fff; }
.btn--light { background: #fff; color: var(--leather); }
.btn--light:hover { background: #fff7ee; }
.btn--small { padding: 9px 18px; font-size: .9rem; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(251, 246, 239, 0.9);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--serif); font-weight: 700; font-size: 1.35rem; color: var(--leather-dark); }
.brand__mark {
  width: 34px; height: 34px; border-radius: 9px; flex: 0 0 auto;
  background: linear-gradient(135deg, var(--leather), var(--wood));
  display: grid; place-items: center; color: #fff; font-size: 1.1rem;
}
.nav-links { display: flex; align-items: center; gap: 6px; list-style: none; margin: 0; padding: 0; }
.nav-links a { padding: 9px 14px; border-radius: 999px; font-weight: 500; color: var(--ink-soft); transition: background .2s, color .2s; }
.nav-links a:hover, .nav-links a.is-active { background: var(--bg-alt); color: var(--leather); }
.nav-right { display: flex; align-items: center; gap: 14px; }

/* Language switch */
.lang-switch { display: flex; gap: 4px; background: var(--bg-alt); padding: 4px; border-radius: 999px; }
.lang-btn { border: none; background: transparent; cursor: pointer; font-family: var(--sans); font-weight: 600; font-size: .82rem; color: var(--muted); padding: 5px 10px; border-radius: 999px; transition: all .2s; }
.lang-btn:hover { color: var(--leather); }
.lang-btn.is-active { background: #fff; color: var(--leather); box-shadow: var(--shadow-sm); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2.5px; background: var(--ink); border-radius: 2px; transition: .25s; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; color: #fff; overflow: hidden; }
.hero__bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.hero__bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(105deg, rgba(34,22,12,.82) 0%, rgba(34,22,12,.55) 45%, rgba(34,22,12,.25) 100%); }
.hero__inner { position: relative; z-index: 2; padding: clamp(80px, 13vw, 160px) 0; max-width: 760px; }
.hero__badge { display: inline-block; padding: 7px 16px; border: 1px solid rgba(255,255,255,.5); border-radius: 999px; font-size: .85rem; letter-spacing: .04em; margin-bottom: 22px; backdrop-filter: blur(4px); }
.hero h1 { color: #fff; text-shadow: 0 2px 18px rgba(0,0,0,.3); }
.hero__sub { font-size: 1.15rem; max-width: 600px; color: #f3e7d8; margin-bottom: 32px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; }
.hero__highlights {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  margin-top: 40px; max-width: 720px;
}
.hero-highlight {
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-sm);
  padding: 16px 16px;
  backdrop-filter: blur(4px);
}
.hero-highlight__title {
  display: block; font-family: var(--sans); font-weight: 700; font-size: 1.02rem;
  color: #fff; margin-bottom: 4px;
}
.hero-highlight__desc { display: block; font-size: .86rem; color: #ecdcc8; line-height: 1.5; }

/* ---------- Company intro band ---------- */
.company-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 44px; align-items: center; }
.company-band__eyebrow {
  display: inline-block; font-family: var(--sans); font-weight: 600; font-size: .85rem;
  letter-spacing: .04em; color: var(--amber-dark); text-transform: uppercase; margin-bottom: 12px;
}
.company-text h2 { margin: 0 0 16px; }
.company-text p { color: var(--ink-soft); font-size: 1.02rem; margin-bottom: 24px; }
.company-img {
  aspect-ratio: 4/3; border-radius: var(--radius);
  background-size: cover; background-position: center; box-shadow: var(--shadow);
}

/* ---------- Logo customization band (key service) ---------- */
.custom-band { background: linear-gradient(120deg, var(--amber-dark), var(--amber)); color: #fff; }
.custom-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 44px; align-items: center; }
.custom-band__eyebrow {
  display: inline-block; font-family: var(--sans); font-weight: 700; font-size: .85rem;
  letter-spacing: .06em; text-transform: uppercase; color: #fff; opacity: .92; margin-bottom: 12px;
}
.custom-text h2 { color: #fff; margin: 0 0 16px; }
.custom-text p { color: #fff7ec; font-size: 1.05rem; margin-bottom: 26px; }
.custom-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.custom-gallery__item {
  aspect-ratio: 1/1; border-radius: var(--radius-sm); background-size: cover; background-position: center;
  box-shadow: var(--shadow); border: 3px solid rgba(255, 255, 255, .55);
}

/* ---------- Category cards ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.cat-card { background: var(--surface); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--line); transition: transform .2s, box-shadow .2s; display: flex; flex-direction: column; }
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.cat-card__img { aspect-ratio: 4/3; background-size: cover; background-position: center; }
.cat-card__body { padding: 22px 22px 26px; display: flex; flex-direction: column; flex: 1; }
.cat-card__tag { color: var(--amber-dark); font-weight: 600; font-size: .92rem; margin: -4px 0 8px; }
.cat-card__desc { color: var(--muted); font-size: .95rem; flex: 1; }
.cat-card__more { color: var(--leather); font-weight: 600; margin-top: 14px; }

/* ---------- Product cards ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.product-card { background: var(--surface); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow-sm); display: flex; flex-direction: column; transition: transform .2s, box-shadow .2s; }
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.product-card__img { aspect-ratio: 1/1; background-size: cover; background-position: center; }
.product-card__body { padding: 20px 20px 24px; display: flex; flex-direction: column; flex: 1; }
.product-card__body h3 { margin-bottom: 6px; }
.product-card__body p { color: var(--muted); font-size: .94rem; flex: 1; }
.product-card__meta { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: .82rem; color: var(--ink-soft); margin: 12px 0 16px; }
.product-card__meta strong { color: var(--leather); }

/* ---------- Why cards ---------- */
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.why-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 22px; box-shadow: var(--shadow-sm); }
.why-card__icon { width: 46px; height: 46px; border-radius: 12px; background: linear-gradient(135deg, var(--amber), var(--leather)); color: #fff; display: grid; place-items: center; font-size: 1.3rem; margin-bottom: 16px; }
.why-card h3 { font-size: 1.1rem; }
.why-card p { color: var(--muted); font-size: .92rem; margin: 0; }

/* ---------- CTA band ---------- */
.cta-band { background: linear-gradient(120deg, var(--leather-dark), var(--leather)); color: #fff; border-radius: 0; }
.cta-band .container { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; margin: 0 0 6px; }
.cta-band p { color: #f0e2d2; margin: 0; }
.cta-band__actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- About page ---------- */
.page-hero { position: relative; color: #fff; overflow: hidden; }
.page-hero__bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.page-hero__bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(34,22,12,.55), rgba(34,22,12,.78)); }
.page-hero .container { position: relative; z-index: 2; padding: clamp(70px, 11vw, 130px) 22px; text-align: center; }
.page-hero h1 { color: #fff; }
.page-hero p { color: #ead9c6; font-size: 1.1rem; max-width: 620px; margin: 0 auto; }

.about-text { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
.about-text img { border-radius: var(--radius); box-shadow: var(--shadow); }
.about-block h2 { margin-bottom: 12px; }
.about-block p { color: var(--ink-soft); }

.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.step { text-align: center; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 16px; box-shadow: var(--shadow-sm); }
.step__num { width: 44px; height: 44px; margin: 0 auto 12px; border-radius: 50%; background: var(--bg-alt); color: var(--leather); font-family: var(--serif); font-weight: 700; font-size: 1.2rem; display: grid; place-items: center; }
.step h4 { font-family: var(--sans); font-size: 1rem; margin-bottom: 6px; }
.step p { color: var(--muted); font-size: .86rem; margin: 0; }

.caps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cap-card { background: var(--surface); border: 1px solid var(--line); border-left: 4px solid var(--amber); border-radius: var(--radius-sm); padding: 22px; box-shadow: var(--shadow-sm); }
.cap-card h4 { font-family: var(--sans); font-size: 1.05rem; margin-bottom: 6px; color: var(--leather-dark); }
.cap-card p { color: var(--muted); font-size: .92rem; margin: 0; }

/* ---------- Filter bar ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 36px; }
.filter-bar__btn { border: 1.5px solid var(--line); background: var(--surface); color: var(--ink-soft); padding: 9px 18px; border-radius: 999px; cursor: pointer; font-weight: 600; font-size: .9rem; transition: all .2s; }
.filter-bar__btn:hover { border-color: var(--leather); color: var(--leather); }
.filter-bar__btn.is-active { background: var(--leather); color: #fff; border-color: var(--leather); }

/* ---------- Contact ---------- */
.contact-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 46px; }
.contact-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 24px; text-align: center; box-shadow: var(--shadow-sm); }
.contact-card__icon { font-size: 1.8rem; margin-bottom: 10px; }
.contact-card h3 { margin-bottom: 6px; }
.contact-card p { color: var(--muted); font-size: .92rem; }
.contact-card a { color: var(--leather); font-weight: 600; }

.inquiry { max-width: 720px; margin: 0 auto; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(24px, 4vw, 40px); box-shadow: var(--shadow-sm); }
.inquiry h3 { text-align: center; }
.inquiry__note { text-align: center; color: var(--muted); font-size: .85rem; margin-bottom: 22px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-weight: 600; font-size: .9rem; color: var(--ink-soft); }
.field input, .field select, .field textarea {
  font-family: var(--sans); font-size: .95rem; padding: 11px 13px; border: 1.5px solid var(--line);
  border-radius: var(--radius-sm); background: var(--bg); color: var(--ink); transition: border .2s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--leather); }
.field textarea { resize: vertical; min-height: 110px; }
.inquiry__actions { display: flex; gap: 12px; margin-top: 20px; flex-wrap: wrap; }
.inquiry__status { margin-top: 18px; padding: 12px 16px; border-radius: 10px; font-size: .95rem; line-height: 1.5; }
.inquiry__status--success { background: #eaf6ec; color: #1f6b34; border: 1px solid #bfe3c7; }
.inquiry__status--error { background: #fdecea; color: #a3261a; border: 1px solid #f3c4be; }

/* ---------- Footer ---------- */
.site-footer { background: #2c2118; color: #e8dccb; padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 36px; }
.site-footer h4 { color: #fff; font-family: var(--sans); font-size: 1rem; margin-bottom: 14px; letter-spacing: .03em; }
.site-footer a { color: #cfbfa9; }
.site-footer a:hover { color: #fff; }
.footer-brand { display: flex; align-items: center; gap: 10px; font-family: var(--serif); font-size: 1.3rem; color: #fff; margin-bottom: 14px; }
.footer-about { color: #b8a892; font-size: .92rem; max-width: 360px; }
.footer-links { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 9px; }
.footer-contact p { margin: 4px 0; color: #b8a892; font-size: .92rem; }
.footer-social { display: flex; gap: 10px; margin-top: 14px; }
.footer-social a { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,.08); display: grid; place-items: center; font-size: .8rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 40px; padding-top: 20px; text-align: center; color: #9c8b76; font-size: .85rem; }

/* ---------- Back to top ---------- */
.back-to-top { position: fixed; right: 22px; bottom: 22px; width: 46px; height: 46px; border-radius: 50%; background: var(--leather); color: #fff; border: none; cursor: pointer; font-size: 1.2rem; box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translateY(10px); transition: .25s; z-index: 40; }
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .cat-grid, .product-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .caps-grid { grid-template-columns: repeat(2, 1fr); }
  .about-text { grid-template-columns: 1fr; }
  .contact-cards { grid-template-columns: 1fr; }
  .company-grid { grid-template-columns: 1fr; gap: 28px; }
  .custom-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-links {
    position: absolute; top: 70px; left: 0; right: 0;
    background: var(--bg); flex-direction: column; align-items: stretch; gap: 0;
    padding: 10px 22px 18px; border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow); display: none;
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 13px 8px; border-radius: 8px; }
  .nav-toggle { display: flex; }
  .nav-right .btn--ghost { display: none; }
  .cat-grid, .product-grid, .why-grid, .steps, .caps-grid { grid-template-columns: 1fr; }
  .hero__highlights { grid-template-columns: 1fr; max-width: 100%; }
  .form-grid { grid-template-columns: 1fr; }
  .cta-band .container { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* Visually hidden (for honeypot anti-spam field) */
.visually-hidden { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; overflow: hidden; }

/* Jinshuju (金数据) embedded lead form — kept for backward compat */
.jinshuju-embed { margin: 10px 0 4px; }
.jinshuju-embed iframe {
  width: 100%;
  max-width: 720px;
  height: 820px;
  border: 0;
  border-radius: 14px;
  background: #fff;
  display: block;
  margin: 0 auto;
  box-shadow: 0 8px 30px rgba(80, 50, 20, 0.10);
}
@media (max-width: 600px) {
  .jinshuju-embed iframe { height: 960px; }
}