/* ============================================================
   DANIFIEL — Genuine Leather Jacket Manufacturer
   Palette: charcoal / leather brown / antique gold / bone
   ============================================================ */
:root {
  --ink: #12100c;
  --ink-2: #1a1712;
  --ink-3: #241f18;
  --leather: #8a5a33;
  --leather-dark: #5e3a1e;
  --gold: #c8a24b;
  --gold-soft: #d9b96b;
  --bone: #f2eada;
  --muted: #a89c8a;
  --line: rgba(242, 234, 218, 0.14);
  --font-serif: "Playfair Display", "Times New Roman", Georgia, serif;
  --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--ink);
  color: var(--bone);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* subtle leather-grain noise */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.05;
  background-image:
    radial-gradient(circle at 25% 20%, rgba(242,234,218,0.5) 0.5px, transparent 1px),
    radial-gradient(circle at 70% 60%, rgba(200,162,75,0.4) 0.5px, transparent 1px);
  background-size: 140px 140px, 180px 180px;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
section { position: relative; z-index: 1; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.section { padding: 110px 0; }
.section-dark { background: var(--ink-2); }

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 18px;
  font-weight: 500;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(30px, 4.4vw, 48px);
  font-weight: 700;
  line-height: 1.22;
  margin-bottom: 22px;
}

.section-lead {
  color: var(--muted);
  font-size: 16px;
  max-width: 60ch;
  font-weight: 300;
}

/* ============ NAV ============ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background 0.35s ease, box-shadow 0.35s ease;
}
.nav.scrolled {
  background: rgba(18, 16, 12, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--line);
}
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.14em;
  color: var(--bone);
  white-space: nowrap;
}
.logo-cn {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--gold);
  margin-left: 10px;
  vertical-align: middle;
}
.nav-links {
  display: flex;
  gap: 34px;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--bone);
}
.nav-links a { opacity: 0.85; transition: opacity 0.25s, color 0.25s; position: relative; }
.nav-links a:hover { opacity: 1; color: var(--gold); }
.nav-right { display: flex; align-items: center; gap: 18px; }
.lang-toggle {
  background: none;
  border: 1px solid var(--line);
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.2em;
  padding: 7px 14px;
  cursor: pointer;
  border-radius: 2px;
  transition: border-color 0.25s, background 0.25s;
}
.lang-toggle:hover { border-color: var(--gold); background: rgba(200,162,75,0.08); }
.nav-burger { display: none; background: none; border: none; cursor: pointer; }
.nav-burger span { display: block; width: 22px; height: 2px; background: var(--bone); margin: 5px 0; transition: transform 0.3s; }

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center 20%;
  animation: heroZoom 14s ease-out forwards;
}
@keyframes heroZoom { from { transform: scale(1.12); } to { transform: scale(1); } }
.hero-overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(105deg, rgba(14,12,9,0.94) 0%, rgba(14,12,9,0.72) 45%, rgba(14,12,9,0.35) 100%),
    linear-gradient(0deg, rgba(14,12,9,0.9) 0%, transparent 30%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding: 140px 8vw 90px;
  max-width: 900px;
}
.hero-kicker {
  font-size: 13px;
  letter-spacing: 0.42em;
  color: var(--gold);
  margin-bottom: 26px;
  animation: fadeUp 0.9s 0.15s both;
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(46px, 8.4vw, 96px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: 0.02em;
  margin-bottom: 30px;
  animation: fadeUp 0.9s 0.3s both;
}
.hero-sub {
  font-size: clamp(15px, 1.6vw, 18px);
  font-weight: 300;
  color: var(--bone);
  opacity: 0.88;
  max-width: 56ch;
  margin-bottom: 42px;
  animation: fadeUp 0.9s 0.45s both;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; animation: fadeUp 0.9s 0.6s both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }

.btn {
  display: inline-block;
  padding: 15px 38px;
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold-soft), var(--gold));
  color: var(--ink);
  font-weight: 600;
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(200,162,75,0.28); }
.btn-ghost { border-color: rgba(242,234,218,0.4); color: var(--bone); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn-block { width: 100%; }

.hero-scroll {
  position: absolute;
  bottom: 34px; left: 50%;
  width: 1px; height: 56px;
  background: linear-gradient(var(--gold), transparent);
  transform: translateX(-50%);
  z-index: 2;
}
.hero-scroll::after {
  content: "";
  position: absolute;
  top: 0; left: -3px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--gold);
  animation: scrollDrop 1.8s infinite;
}
@keyframes scrollDrop { 0% { transform: translateY(0); opacity: 1; } 70% { transform: translateY(46px); opacity: 0; } 100% { opacity: 0; } }

/* ============ MARQUEE ============ */
.marquee {
  background: var(--ink-3);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  padding: 14px 0;
  z-index: 1;
  position: relative;
}
.marquee-track {
  display: flex;
  gap: 46px;
  width: max-content;
  animation: marquee 30s linear infinite;
}
.marquee-track span {
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: 0.3em;
  color: var(--gold);
  white-space: nowrap;
}
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ============ ABOUT ============ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 70px;
  align-items: center;
}
.about-visual { position: relative; }
.about-photo {
  height: 520px;
  background-size: cover;
  background-position: center;
  border: 1px solid var(--line);
  position: relative;
}
.about-photo::after {
  content: "";
  position: absolute;
  inset: 16px;
  border: 1px solid rgba(200,162,75,0.35);
  pointer-events: none;
}
.about-badge {
  position: absolute;
  right: -18px; bottom: -22px;
  background: var(--ink-3);
  border: 1px solid var(--line);
  padding: 20px 26px;
  text-align: center;
  box-shadow: 0 18px 50px rgba(0,0,0,0.5);
}
.about-badge strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 40px;
  color: var(--gold);
  line-height: 1;
}
.about-badge span { font-size: 12px; letter-spacing: 0.2em; color: var(--muted); }
.about-text .section-lead { margin-bottom: 18px; }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 46px;
  border-top: 1px solid var(--line);
  padding-top: 34px;
}
.stat strong {
  font-family: var(--font-serif);
  font-size: 34px;
  color: var(--gold);
  display: block;
  line-height: 1.1;
}
.stat span { font-size: 12px; letter-spacing: 0.14em; color: var(--muted); }

/* ============ PRODUCTS ============ */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 54px;
}
.product-card {
  background: var(--ink-3);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(200,162,75,0.55);
  box-shadow: 0 22px 44px rgba(0,0,0,0.5);
}
.product-img {
  height: 320px;
  background-size: cover;
  background-position: center top;
  transition: transform 0.6s ease;
}
.product-card:hover .product-img { transform: scale(1.05); }
.product-info { padding: 20px 20px 24px; }
.product-info h3 {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
}
.product-info p { font-size: 13px; color: var(--muted); letter-spacing: 0.04em; }

/* ============ CRAFT ============ */
.craft-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 54px;
}
.craft-item {
  border: 1px solid var(--line);
  padding: 34px 26px;
  position: relative;
  transition: background 0.3s, border-color 0.3s;
  background: rgba(26,23,18,0.6);
}
.craft-item::before {
  content: "";
  position: absolute;
  top: 0; left: 26px; right: 26px;
  border-top: 2px dashed rgba(200,162,75,0.45);
}
.craft-item:hover { border-color: rgba(200,162,75,0.5); background: var(--ink-3); }
.craft-item h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--gold);
  margin-bottom: 10px;
}
.craft-item p { font-size: 14px; color: var(--muted); }

/* ============ OEM ============ */
.oem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 54px;
}
.oem-item {
  background: var(--ink-3);
  border: 1px solid var(--line);
  padding: 32px 28px;
  transition: transform 0.3s, border-color 0.3s;
}
.oem-item:hover { transform: translateY(-4px); border-color: rgba(200,162,75,0.5); }
.oem-num {
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--gold);
  letter-spacing: 0.2em;
}
.oem-item h3 { font-family: var(--font-serif); font-size: 19px; margin: 12px 0 8px; }
.oem-item p { font-size: 14px; color: var(--muted); }

/* ============ CONTACT ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 70px;
  align-items: start;
}
.contact-meta { margin-top: 40px; display: flex; flex-direction: column; gap: 18px; }
.meta-row {
  display: flex;
  gap: 20px;
  align-items: baseline;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.meta-label {
  min-width: 90px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
}
.meta-row a:hover { color: var(--gold); }

.inquiry-form {
  background: var(--ink-2);
  border: 1px solid var(--line);
  padding: 38px;
  position: relative;
}
.inquiry-form::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(200,162,75,0.22);
  pointer-events: none;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-field { margin-bottom: 22px; position: relative; z-index: 1; }
.form-field label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  background: rgba(18,16,12,0.7);
  border: 1px solid var(--line);
  color: var(--bone);
  padding: 13px 15px;
  font-family: var(--font-sans);
  font-size: 14px;
  transition: border-color 0.25s;
  border-radius: 0;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--gold);
}
.form-field select option { background: var(--ink-3); }
.inquiry-form .btn { margin-top: 6px; position: relative; z-index: 1; }
.form-status {
  margin-top: 14px;
  font-size: 13px;
  min-height: 20px;
  letter-spacing: 0.03em;
}
.form-status.ok { color: var(--gold-soft); }
.form-status.err { color: #d97b6b; }

/* ============ FOOTER ============ */
.footer {
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  padding: 46px 0;
  z-index: 1;
  position: relative;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-brand strong {
  font-family: var(--font-serif);
  font-size: 18px;
  letter-spacing: 0.12em;
}
.footer-brand strong span { color: var(--gold); font-size: 12px; letter-spacing: 0.3em; font-family: var(--font-sans); font-weight: 400; margin-left: 6px; }
.footer-brand p { font-size: 12px; color: var(--muted); letter-spacing: 0.1em; margin-top: 4px; }
.footer-contact { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
.footer-contact a:hover { color: var(--gold); }
.footer-copy { font-size: 12px; color: var(--muted); }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .craft-grid { grid-template-columns: repeat(2, 1fr); }
  .oem-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 50px; }
  .about-photo { height: 420px; }
}
@media (max-width: 768px) {
  .section { padding: 80px 0; }
  .nav-links {
    position: fixed;
    inset: 0;
    background: rgba(14,12,9,0.98);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 30px;
    font-size: 20px;
    transform: translateY(-100%);
    transition: transform 0.4s ease;
    z-index: -1;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-burger { display: block; z-index: 2; }
  .nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-burger.open span:nth-child(2) { opacity: 0; }
  .nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .hero-content { padding: 120px 24px 70px; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 26px; }
  .about-badge { right: 6px; }
  .form-row { grid-template-columns: 1fr; }
  .inquiry-form { padding: 28px 22px; }
  .product-img { height: 260px; }
}