/* ===== Shizhi Trading - Export Site Styles ===== */

:root {
  --navy: #0b2a4a;
  --navy-2: #123b63;
  --navy-3: #1b4d80;
  --orange: #e8772e;
  --orange-dark: #c85f1c;
  --ink: #1c2530;
  --muted: #5a6879;
  --line: #e3e8ee;
  --bg: #f6f8fa;
  --white: #ffffff;
  --radius: 10px;
  --shadow: 0 6px 24px rgba(11, 42, 74, 0.08);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: 'Noto Sans', 'Segoe UI', 'Microsoft YaHei', system-ui, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }

a { color: var(--navy-3); text-decoration: none; }

.container { width: min(1160px, 92%); margin: 0 auto; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 42, 74, 0.97);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  width: min(1160px, 92%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand { display: flex; align-items: center; gap: 10px; }

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: var(--orange);
  color: #fff;
  font-family: 'Oswald', 'Noto Sans', sans-serif;
  font-weight: 700;
  font-size: 22px;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.1; }

.brand-text strong {
  font-family: 'Oswald', 'Noto Sans', sans-serif;
  font-weight: 600;
  letter-spacing: 2px;
  font-size: 20px;
  color: #fff;
}

.brand-text small {
  font-size: 11px;
  letter-spacing: 1.5px;
  color: rgba(255, 255, 255, 0.65);
}

.main-nav { display: flex; align-items: center; gap: 26px; }

.main-nav a {
  color: rgba(255, 255, 255, 0.88);
  font-size: 15px;
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.main-nav a:hover { color: #fff; border-bottom-color: var(--orange); }

.main-nav .nav-cta {
  background: var(--orange);
  color: #fff;
  padding: 10px 20px;
  border-radius: 6px;
  border-bottom: none;
  font-weight: 600;
  transition: background 0.2s;
}

.main-nav .nav-cta:hover { background: var(--orange-dark); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
}

.nav-toggle span { width: 24px; height: 2px; background: #fff; transition: transform 0.2s; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--navy);
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11, 42, 74, 0.92) 0%, rgba(11, 42, 74, 0.72) 45%, rgba(11, 42, 74, 0.35) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(1160px, 92%);
  margin: 0 auto;
  padding: 90px 0;
  color: #fff;
}

.hero-kicker {
  font-family: 'Oswald', 'Noto Sans', sans-serif;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--orange);
  font-size: 15px;
  margin-bottom: 14px;
}

.hero h1 {
  font-family: 'Oswald', 'Noto Sans', sans-serif;
  font-weight: 700;
  font-size: clamp(34px, 5.2vw, 58px);
  line-height: 1.12;
  margin-bottom: 18px;
  text-transform: uppercase;
}

.hero-sub {
  max-width: 620px;
  font-size: 17px;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 28px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 48px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 26px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.btn-primary { background: var(--orange); color: #fff; }
.btn-primary:hover { background: var(--orange-dark); }

.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
}
.btn-ghost:hover { border-color: #fff; background: rgba(255, 255, 255, 0.1); }

.hero-stats {
  display: flex;
  gap: 48px;
  list-style: none;
  padding: 0;
}

.hero-stats li { display: flex; flex-direction: column; }

.hero-stats strong {
  font-family: 'Oswald', 'Noto Sans', sans-serif;
  font-size: 30px;
  font-weight: 700;
  color: #fff;
}

.hero-stats span {
  font-size: 13px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.65);
}

/* ===== Sections ===== */
.section { padding: 84px 0; }

.section-head {
  max-width: 720px;
  margin-bottom: 44px;
}

.section-kicker {
  font-family: 'Oswald', 'Noto Sans', sans-serif;
  font-weight: 500;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--orange);
  font-size: 14px;
  margin-bottom: 10px;
}

.section-head h2, .about-copy h2, .contact-copy h2 {
  font-family: 'Oswald', 'Noto Sans', sans-serif;
  font-weight: 600;
  font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1.15;
  color: var(--navy);
  margin-bottom: 14px;
  text-transform: uppercase;
}

.section-head p:not(.section-kicker), .about-copy p, .contact-copy p {
  color: var(--muted);
  font-size: 16px;
}

/* ===== Products ===== */
.products { background: var(--bg); }

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 26px;
}

.product-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.product-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(11, 42, 74, 0.14); }

.product-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.product-body { padding: 22px 22px 24px; }

.product-body h3 {
  font-family: 'Oswald', 'Noto Sans', sans-serif;
  font-weight: 600;
  font-size: 21px;
  color: var(--navy);
  margin-bottom: 8px;
  line-height: 1.25;
}

.product-body p { color: var(--muted); font-size: 14.5px; margin-bottom: 14px; }

.tag-list { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }

.tag-list li {
  font-size: 12.5px;
  color: var(--navy-3);
  background: #edf3fa;
  padding: 5px 11px;
  border-radius: 999px;
}

.card-link {
  font-weight: 600;
  font-size: 14.5px;
  color: var(--orange);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.card-link::after { content: "→"; transition: transform 0.2s; }
.card-link:hover::after { transform: translateX(4px); }

.card-actions { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.card-actions .card-link { margin-right: 0; }
.card-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 14.5px;
  color: var(--navy-3);
  border: 1px solid var(--navy-3);
  padding: 7px 16px;
  border-radius: 999px;
  transition: background 0.2s, color 0.2s;
}
.card-btn:hover { background: var(--navy-3); color: var(--white); }

.products-note {
  margin-top: 36px;
  text-align: center;
  color: var(--muted);
  font-size: 15px;
}

.products-note a { color: var(--orange); font-weight: 600; }

/* ===== About ===== */
.about-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 52px;
  align-items: center;
}

.about-copy h2 { margin-bottom: 18px; }

.about-copy p { margin-bottom: 14px; }

.about-points {
  list-style: none;
  margin: 20px 0 28px;
  display: grid;
  gap: 10px;
}

.about-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--ink);
  font-size: 15px;
}

.about-points li::before {
  content: "✓";
  color: var(--orange);
  font-weight: 700;
  margin-top: -1px;
}

.about-visual img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 100%;
  height: 420px;
  object-fit: cover;
}

/* ===== Industries ===== */
.industries { background: var(--navy); }

.industries .section-head h2 { color: #fff; }
.industries .section-head p:not(.section-kicker) { color: rgba(255, 255, 255, 0.7); }

.industry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.industry-item {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 24px 20px;
  transition: background 0.2s;
}

.industry-item:hover { background: rgba(255, 255, 255, 0.1); }

.industry-item svg {
  width: 34px;
  height: 34px;
  fill: none;
  stroke: var(--orange);
  stroke-width: 1.6;
  margin-bottom: 14px;
}

.industry-item h3 {
  font-family: 'Oswald', 'Noto Sans', sans-serif;
  font-weight: 600;
  font-size: 18px;
  color: #fff;
  margin-bottom: 6px;
}

.industry-item p { font-size: 13.5px; color: rgba(255, 255, 255, 0.65); }

/* ===== Why ===== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.why-item {
  border-top: 3px solid var(--orange);
  background: var(--white);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  padding: 26px 22px;
}

.why-num {
  font-family: 'Oswald', 'Noto Sans', sans-serif;
  font-weight: 700;
  font-size: 34px;
  color: #d6e0ea;
  line-height: 1;
  display: block;
  margin-bottom: 16px;
}

.why-item h3 {
  font-family: 'Oswald', 'Noto Sans', sans-serif;
  font-weight: 600;
  font-size: 19px;
  color: var(--navy);
  margin-bottom: 8px;
}

.why-item p { font-size: 14.5px; color: var(--muted); }

/* ===== Contact ===== */
.contact { background: var(--bg); }

.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 52px;
  align-items: start;
}

.contact-copy h2 { margin-bottom: 16px; }

.contact-copy p { margin-bottom: 22px; }

.contact-list { list-style: none; display: grid; gap: 18px; margin-bottom: 28px; }

.contact-list li { display: flex; gap: 14px; align-items: flex-start; }

.contact-list svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: var(--orange);
  stroke-width: 1.6;
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-list span {
  display: block;
  font-size: 12.5px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2px;
}

.contact-list a, .contact-list p { font-size: 16px; color: var(--ink); font-weight: 500; }
.contact-list a:hover { color: var(--orange); }

.btn-whatsapp {
  background: #25d366;
  color: #fff;
  gap: 10px;
}
.btn-whatsapp:hover { background: #1eb858; }

.btn-whatsapp svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.quote-form {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px;
}

.quote-form h3 {
  font-family: 'Oswald', 'Noto Sans', sans-serif;
  font-weight: 600;
  font-size: 22px;
  color: var(--navy);
  margin-bottom: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-field { margin-bottom: 16px; }

.form-field label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}

.form-field input, .form-field textarea {
  width: 100%;
  border: 1.5px solid var(--line);
  border-radius: 6px;
  padding: 11px 13px;
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  background: #fbfcfd;
  transition: border-color 0.2s;
}

.form-field input:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--navy-3);
  background: #fff;
}

.form-field textarea { resize: vertical; }

.quote-form .btn { width: 100%; border: none; cursor: pointer; margin-top: 4px; }

.form-hint {
  margin-top: 12px;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}

.form-status {
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 14px;
  text-align: center;
  background: #eaf7ec;
  color: #1d7a34;
  display: none;
}

/* ===== Footer ===== */
.site-footer { background: var(--navy); color: rgba(255, 255, 255, 0.75); padding: 40px 0; }

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.footer-brand { display: flex; gap: 12px; align-items: flex-start; }

.footer-brand strong {
  font-family: 'Oswald', 'Noto Sans', sans-serif;
  letter-spacing: 1.5px;
  color: #fff;
  font-size: 16px;
}

.footer-brand p { font-size: 13.5px; margin-top: 4px; }

.footer-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
}

.footer-links a { color: rgba(255, 255, 255, 0.75); font-size: 14.5px; }
.footer-links a:hover { color: var(--orange); }

.footer-note { font-size: 13px; color: rgba(255, 255, 255, 0.45); border-top: 1px solid rgba(255, 255, 255, 0.12); padding-top: 18px; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .about-layout, .contact-layout { grid-template-columns: 1fr; gap: 36px; }
  .about-visual img { height: 320px; }
}

@media (max-width: 760px) {
  .nav-toggle { display: flex; }

  .main-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--navy);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 0 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: none;
  }

  .main-nav.open { display: flex; }

  .main-nav a { padding: 12px 6%; font-size: 16px; }

  .main-nav .nav-cta { margin: 12px 6% 0; text-align: center; }

  .hero { min-height: 560px; }
  .hero-content { padding: 70px 0; }
  .hero-stats { gap: 28px; flex-wrap: wrap; }
  .hero h1 { font-size: 32px; }

  .product-grid { grid-template-columns: 1fr; }
  .industry-grid, .why-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .hero-actions .btn { width: 100%; }
}

/* ===== Product Detail Pages ===== */
.breadcrumb {
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
  font-size: 13.5px;
  color: var(--muted);
}
.breadcrumb .container { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.breadcrumb a { color: var(--navy-3); }
.breadcrumb .sep { color: #b9c3cf; }
.breadcrumb .current { color: var(--muted); }

.detail-hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 60%, var(--navy-3) 100%);
  color: var(--white);
  padding: 44px 0 40px;
}
.detail-hero h1 { font-family: 'Oswald', 'Noto Sans', sans-serif; font-size: 36px; letter-spacing: 0.5px; }
.detail-hero p { color: rgba(255,255,255,0.85); margin-top: 10px; max-width: 820px; }

.detail-main { padding: 48px 0 56px; }
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: start;
}
.detail-media { position: sticky; top: 96px; }
.detail-media img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  object-fit: cover;
  aspect-ratio: 16 / 10;
}
.detail-thumbs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 12px;
}
.detail-thumbs img {
  aspect-ratio: 1 / 1;
  object-fit: cover;
  cursor: pointer;
  transition: opacity .2s;
}
.detail-thumbs img:hover { opacity: .85; }
.detail-info h2 {
  font-family: 'Oswald', 'Noto Sans', sans-serif;
  font-size: 26px;
  color: var(--navy);
  margin-bottom: 12px;
}
.detail-info .lead { color: var(--muted); margin-bottom: 22px; }
.detail-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
.detail-actions .btn { padding: 12px 26px; font-size: 14.5px; }

.spec-table { width: 100%; border-collapse: collapse; background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.spec-table th, .spec-table td { padding: 11px 16px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--line); }
.spec-table th { background: var(--navy); color: var(--white); font-weight: 600; width: 34%; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: none; }
.spec-table td { color: var(--ink); }

.detail-section { padding: 0 0 8px; }
.detail-section h2 {
  font-family: 'Oswald', 'Noto Sans', sans-serif;
  font-size: 24px;
  color: var(--navy);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--orange);
  display: inline-block;
}
.detail-section p, .detail-section li { color: var(--ink); font-size: 15px; }
.detail-section ul { padding-left: 20px; }
.detail-section ul li { margin-bottom: 8px; }
.app-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.app-list li { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; list-style: none; font-weight: 500; }
.app-list li::before { content: "✓"; color: var(--orange); font-weight: 700; margin-right: 8px; }

.faq-item { border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; margin-bottom: 12px; background: var(--white); }
.faq-item h3 { font-size: 15.5px; color: var(--navy); margin-bottom: 6px; }
.faq-item p { font-size: 14px; color: var(--muted); }

.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.related-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: transform 0.25s, box-shadow 0.25s; }
.related-card:hover { transform: translateY(-4px); box-shadow: 0 12px 30px rgba(11, 42, 74, 0.14); }
.related-card img { width: 100%; height: 180px; object-fit: cover; }
.related-card .rc-body { padding: 16px 18px; }
.related-card h3 { font-size: 15px; color: var(--navy); margin-bottom: 4px; }
.related-card p { font-size: 13px; color: var(--muted); }
.related-card .rc-link { display: inline-block; margin-top: 8px; color: var(--orange); font-weight: 600; font-size: 13.5px; }

@media (max-width: 900px) {
  .detail-grid { grid-template-columns: 1fr; gap: 28px; }
  .detail-media { position: static; }
  .app-list { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr 1fr; }
  .detail-hero h1 { font-size: 30px; }
}
@media (max-width: 560px) {
  .related-grid { grid-template-columns: 1fr; }
}