/* ===== Self-hosted fonts (Phase 4: no Google Fonts dependency) ===== */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/inter-7.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/inter-7.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/inter-7.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url('/fonts/inter-7.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 900;
  font-display: swap;
  src: url('/fonts/inter-7.woff2') format('woff2');
}
@font-face {
  font-family: 'Playfair Display';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/playfair-4.woff2') format('woff2');
}
@font-face {
  font-family: 'Playfair Display';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/playfair-8.woff2') format('woff2');
}
@font-face {
  font-family: 'Playfair Display';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/playfair-8.woff2') format('woff2');
}

/* ===== Variables ===== */
:root {
  --ink: #0c1f14;
  --deep: #0d2418;
  --mid: #1a3d28;
  --accent: #2d6b47;
  --gold: #c4a35a;
  --muted: #5a7a6a;
  --line: #d0dfd8;
  --paper: #ffffff;
  --soft: #f0f5f2;
  --shadow: 0 20px 60px rgba(10, 30, 20, 0.12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  zoom: 0.9;
}
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin-top: 0; }


/* ===== PC-only global zoom: 桌面端整体缩小 10%，移动端/平板保持 100% ===== */
@media (max-width: 1100px) {
  body { zoom: 1; }
  .ab3-stage { min-height: 100vh; }
}

/* ===== Cookie Bar (Phase 4: category-based consent) ===== */
.cookie-bar {
  position: fixed;
  z-index: 100;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px 20px;
  padding: 14px 20px;
  background: var(--deep);
  color: #fff;
  font-size: 13px;
  line-height: 1.5;
  transform: translateY(100%);
  transition: transform 0.4s ease;
}
.cookie-bar.show { transform: translateY(0); }
.cookie-bar a { color: var(--gold); text-decoration: underline; }
.cookie-bar-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.cookie-btn {
  flex-shrink: 0;
  padding: 8px 16px;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 6px;
  background: transparent;
  color: #fff;
  font-weight: 600;
  font-size: 12.5px;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.cookie-btn:hover { border-color: var(--gold); }
.cookie-btn.primary {
  border-color: var(--gold);
  background: var(--gold);
  color: var(--deep);
  font-weight: 700;
}
.cookie-btn.primary:hover { background: #d4b76e; }

/* Cookie settings modal */
.cookie-modal { display: none; position: fixed; inset: 0; z-index: 200; }
.cookie-modal.show { display: block; }
.cookie-modal-overlay { position: absolute; inset: 0; background: rgba(5, 12, 8, 0.6); }
.cookie-modal-panel {
  position: relative;
  max-width: 520px;
  margin: 12vh auto 0;
  padding: 28px;
  background: var(--paper);
  border-radius: 16px;
  box-shadow: var(--shadow);
  color: var(--ink);
}
.cookie-modal-panel h3 { font-size: 19px; font-weight: 800; margin: 0 0 6px; }
.cookie-modal-panel > p { font-size: 13.5px; color: var(--muted); margin: 0 0 18px; line-height: 1.6; }
.cookie-cat {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  font-size: 14px;
  flex-wrap: wrap;
}
.cookie-cat-name { font-weight: 700; }
.cookie-cat-desc { width: 100%; font-size: 12.5px; color: var(--muted); padding-left: 26px; }
.cookie-cat-always { margin-left: auto; font-size: 12px; color: var(--muted); }
.cookie-modal-actions { text-align: right; padding-top: 18px; border-top: 1px solid var(--line); margin-top: 6px; }
@media (max-width: 640px) {
  .cookie-modal-panel { margin: 8vh 16px 0; padding: 22px; }
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  z-index: 50;
  top: 0; left: 0; right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 64px;
  color: #fff;
  background: rgba(13, 36, 24, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}
.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-size: 16px;
  line-height: 1;
  border: 1px solid var(--gold);
  background: var(--deep);
  border-radius: 8px;
  font-size: 14px;
  color: var(--gold);
}
.brand-text { white-space: nowrap; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 14px;
  color: rgba(255,255,255,0.84);
}
.main-nav a:hover { color: var(--gold); }
.lang-switch {
  padding: 6px 8px;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  background: transparent;
  color: rgba(255,255,255,0.84);
  font-family: inherit;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}
.lang-switch option {
  background: #0d2418;
  color: #fff;
}
.lang-switch:hover { border-color: var(--gold); }

.nav-cta, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}
.nav-cta {
  color: var(--deep);
  background: var(--gold);
}
.nav-cta:hover, .button:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.menu-button { display: none; color: #fff; border: 0; background: transparent; font-size: 26px; cursor: pointer; }


/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 800px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  color: #fff;
  background: var(--deep);
}
.hero-media, .hero-video, .hero-overlay { position: absolute; inset: 0; }
.hero-video {
  width: 100%; height: 100%;
  object-fit: cover;
  background: var(--deep);
}
.hero-overlay {
  background: linear-gradient(90deg, rgba(13,36,24,0.9) 0%, rgba(13,36,24,0.6) 48%, rgba(13,36,24,0.2) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1180px;
  width: calc(100% - 40px);
  margin: 0 auto;
  padding: 50px 40px 40px;
}

/* 主页首屏主标题：加大一个号（40px -> 44px），仅主页 hero 生效 */
.hero-content h1 {
  font-size: 44px;
}
.eyebrow {
  margin: 0 0 16px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
h1 {
  max-width: 780px;
  margin-bottom: 16px;
  font-size: 40px;
  line-height: 1.28;
  letter-spacing: -0.02em;
}
h2 { font-size: 40px; line-height: 1.08; }
h3 { margin-bottom: 10px; font-size: 20px; }
.hero-copy {
  max-width: 640px;
  white-space: normal;
  color: rgba(255,255,255,0.82);
  font-size: 17px;
  line-height: 1.72;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 100px 0 28px; }
.button.primary {
  color: var(--deep);
  background: var(--gold);
  box-shadow: 0 14px 28px rgba(196,163,90,0.25);
  border: 0;
  cursor: pointer;
}
.button.secondary {
  color: var(--deep);
  border: 1px solid var(--gold);
  background: var(--gold);
}
.button.full { width: 100%; }
.trust-strip { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.trust-strip span {
  padding: 8px 14px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  font-size: 12px;
  color: rgba(255,255,255,0.84);
}

/* ===== Sections ===== */
.section-pad {
  padding: 100px 76px;
padding: 100px 76px;
}
.section-heading { margin: 0 auto 40px; }
.section-heading.narrow { max-width: 780px; text-align: center; }
.section-heading p { color: var(--muted); line-height: 1.75; }
.dark-section {
  color: #fff;
  background: radial-gradient(circle at top left, rgba(45,107,71,0.3), transparent 70%), var(--deep);
}
.dark-section p { color: rgba(255,255,255,0.7); }
.light-section {
  background: var(--paper);
}


/* ===== Videos Grid (Original) ===== */



/* ===== Video Stack Layout ===== */
.video-stack {
  display: flex;
  flex-direction: column;
  gap: 32px;
  max-width: 1180px;
  margin: 0 auto;
}
.video-row {
  display: flex;
  gap: 40px;
  align-items: stretch;
  padding: 20px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  transition: background 0.25s;
}
.video-row:hover {
  background: rgba(255,255,255,0.06);
}
.video-row-media {
  flex: 1;
  min-width: 0;
}
.video-row-info {
  flex: 1;
  padding-left: 28px;
  display: flex;
  flex-direction: column;
}
.video-row-info h3 {
  font-size: 18px;
  margin-top: 0;
  margin-bottom: 14px;
}
.video-bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  counter-reset: video-counter;
}
.video-bullets li {
  position: relative;
  padding-left: 24px;
  font-size: 14px;
  line-height: 2;
  color: rgba(255,255,255,0.78);
}
.video-bullets li::before {
  content: counter(video-counter);
  counter-increment: video-counter;
  position: absolute;
  left: 0;
  top: 0;
  width: 18px;
  height: 18px;
  background: var(--gold);
  color: var(--deep);
  font-size: 11px;
  font-weight: 800;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}


/* 更多视频提示片（显眼、与底部平齐）*/
.video-more {
  margin-top: auto;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  padding: 10px 16px;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(196,163,90,0.22), rgba(196,163,90,0.08));
  border: 1px solid rgba(196,163,90,0.5);
  color: var(--gold);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  box-shadow: 0 4px 16px rgba(196,163,90,0.12);
}

/* Video wrapper in rows */
.video-row-media .video-wrapper {
  position: relative;
  overflow: hidden;
  background: var(--deep);
  width: 100%;
}
.video-row-media .video-wrapper.ratio-16-9 {
  aspect-ratio: 16/9;
}
.video-row-media .video-wrapper video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== Video Stack: Mobile responsive (2026-08-03) ===== */
@media (max-width: 980px) {
  .video-row { gap: 24px; padding: 16px; }
  .video-row-info { padding-left: 20px; }
}

@media (max-width: 768px) {
  .video-row {
    flex-direction: column;
    gap: 14px;
    padding: 16px;
  }
  .video-row-info { padding-left: 0; }
  .video-row-info h3 { font-size: 17px; margin-bottom: 12px; }
  .video-bullets { gap: 8px; }
  .video-bullets li { line-height: 1.8; }
  .video-more {
    margin-top: 2px;
    font-size: 12px;
    padding: 8px 12px;
    align-self: stretch;
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .video-stack { gap: 20px; }
  .video-row { padding: 14px; }
}





/* ===== Stats ===== */
.stats-section { padding-top: 0; padding-bottom: 58px; margin-top: -40px; position: relative; z-index: 3; }
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 1180px;
  margin: 0 auto;
}
.stat-card {
  padding: 16px 20px;
  border-radius: 10px;
  background: var(--paper);
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: default;
}
.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(10,30,20,0.15);
}
.stat-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 20px;
  color: var(--gold);
}
.stat-card span { font-size: 13px; color: var(--muted); }

/* ===== Products ===== */
#products { padding-top: 5px; }
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1180px;
  margin: 0 auto;
}
.product-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: var(--paper);
  transition: transform 0.2s, box-shadow 0.2s;
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.product-img {
  display: grid;
  place-items: center;
  min-height: 200px;
}
.product-emoji { font-size: 64px; opacity: 0.8; }
.product-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.product-body p { color: var(--muted); line-height: 1.65; font-size: 14px; }
.product-body .button {
  margin-top: auto;
}
.product-body .button.secondary {
  color: var(--mid);
  border-color: var(--mid);
  background: transparent;
  align-self: center;
}
.product-body .button.secondary:hover { background: var(--mid); color: #fff; }

/* ===== Videos ===== */

/* ===== Videos Section (Stack Layout) ===== */








.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  max-width: 1180px;
  margin: 0 auto;
}
.service-grid article {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
}
.service-number {
  display: inline-flex;
  margin-bottom: 16px;
  color: var(--gold);
  font-weight: 900;
  font-size: 32px;
}
.service-grid p { color: var(--muted); line-height: 1.65; font-size: 14px; }

/* ===== Application Scenarios ===== */
.section-header-flex {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  max-width: 1180px;
  margin: 0 auto 40px;
  gap: 20px;
}
.section-header-flex h2 {
  margin-bottom: 0.67em;
}
.section-header-flex p {
  color: var(--muted);
  line-height: 1.75;
  margin: 0;
  color: rgba(255,255,255,0.7);
}
.section-header-flex .button.secondary {
  flex-shrink: 0;
  white-space: nowrap;
}
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  max-width: 1180px;
  margin: 0 auto;
}
.scenario-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}
.scenario-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.3);
}
.scenario-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.3);
  font-size: 14px;
  letter-spacing: 0.05em;
}
.scenario-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.scenario-img a {
  display: block;
  width: 100%;
  height: 100%;
}
.scenario-img a:hover img { transform: scale(1.05); }
.scenario-img.placeholder a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}
.scenario-detail:first-child .scenario-label a {
  color: var(--gold);
  text-decoration: none;
}
.scenario-detail:first-child .scenario-label a:hover {
  text-decoration: underline;
}
.scenario-img.placeholder span {
  padding: 8px 16px;
  border: 1px dashed rgba(255,255,255,0.2);
  border-radius: 6px;
}
.scenario-info {
  padding: 16px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.scenario-detail {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
/* First detail = gold title (usage_medium) */
.scenario-detail:first-child .scenario-label {
  font-size: 17px;
  font-weight: 700;
  color: var(--gold);
  text-transform: none;
  letter-spacing: normal;
}
.scenario-detail:first-child .scenario-value {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  font-style: italic;
  margin-top: -2px;
}
/* Other details = gray labels + gray values */
.scenario-detail:not(:first-child) .scenario-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.35);
}
.scenario-detail:not(:first-child) .scenario-value {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  line-height: 1.4;
}
.scenario-value.placeholder-text {
  color: rgba(255,255,255,0.4);
  font-style: italic;
}

/* ===== About ===== */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
gap: 76px;
  align-items: center;
  max-width: 1180px;
  margin: 0 auto;
}
/* About 眉题单独下移 6px：只影响本区眉题，不动其它文案 */
#about .eyebrow {
  position: relative;
  top: 6px;
  color: var(--gold);
  opacity: 0.7;
}

.super-two { font-size: 1em; vertical-align: baseline; }
.about-image {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 420px;
  background: linear-gradient(to right, var(--deep), var(--mid));
  border-radius: 20px;
  color: var(--gold);
  font-size: 80px;
  font-weight: 900;
  letter-spacing: -0.03em;
}
.about-image-text {
  opacity: 0;
  position: relative;
  z-index: 1;
  transition: opacity 0.3s ease;
}
.about-image-swap {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
  opacity: 1;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.about-image.about-swap .about-image-text { opacity: 0; }
.about-image.about-swap .about-image-swap { opacity: 1; }
.about-content { max-width: 680px; }
.about-heading {
    display: block;
    margin-top: 40px;
    margin-bottom: 31px;
  }
  .about-heading h2 {
    color: var(--gold);
    font-size: 42px;
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.12;
    margin-bottom: 20px;
  }
  .about-title span {
    display: block;
  }

  .about-title-link {
    display: inline-block;
    position: relative;
    top: 5px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s ease;
  }
  .about-title-link:hover {
    transform: translate(12px, -12px);
  }
  .about-more {
    display: inline-block;
    text-decoration: none;
    line-height: 1;
  }
  .about-more-text {
    display: inline-block;
    color: var(--gold);
    font-weight: 800;
    font-size: 16px;
    border-bottom: 2px solid rgba(196, 163, 90, 0.45);
    padding-bottom: 3px;
    transition: border-color 0.3s ease;
  }
  .about-more::after {
    content: " \01F446";
    display: inline-block;
    font-size: 72px;
    line-height: 1;
    vertical-align: middle;
    margin-left: 8px;
  }
  .about-more:hover .about-more-text {
    border-bottom-color: var(--gold);
  }

.about-desc {
  font-size: 18px;
  margin-top: 39px;
}

/* ===== Process ===== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  max-width: 1180px;
  margin: 0 auto;
}
.process-grid div {
  padding: 28px;
  border-left: 3px solid var(--gold);
  background: var(--soft);
  border-radius: 0 8px 8px 0;
}
.process-grid strong {
  display: block;
  margin-bottom: 16px;
  color: var(--gold);
  font-size: 36px;
}
.process-grid p { color: var(--muted); line-height: 1.65; font-size: 14px; }

/* ===== Contact / Form ===== */
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
gap: 76px;
  align-items: stretch;
  max-width: 1180px;
  margin: 0 auto;
}
.contact-copy {
  display: flex;
  flex-direction: column;
  height: 100%;
}
.contact-icon-top { margin-bottom: 16px; }
.contact-icon-top svg { display: block; }
.contact-title {
  max-width: 780px;
  margin-bottom: 16px;
  font-size: 40px;
  line-height: 1.28;
  letter-spacing: -0.02em;
  color: #fff;
}
.contact-subtitle {
  max-width: 640px;
  white-space: normal;
  color: rgba(255,255,255,0.82);
  font-size: 17px;
  line-height: 1.72;
  margin-bottom: 32px;
}
.contact-details {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex: 1;
}

.contact-icon-img {
  display: block;
  width: 22px;
  height: 22px;
}
.contact-item span:not(.contact-icon) {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  display: block;
  margin-top: 2px;
  line-height: 1.5;
}
.contact-lang-headline {
  margin-bottom: 20px;
  padding: 16px 18px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  background: rgba(255,255,255,0.03);
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 10px;
  background: rgba(255,255,255,0.04);
  transition: border-color 0.2s, background 0.2s;
}
.contact-item:hover {
  border-color: var(--gold);
  background: rgba(196,163,90,0.06);
}
.contact-icon {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(196,163,90,0.12);
  font-size: 18px;
}
.contact-icon img {
  display: block;
  max-width: 24px;
  max-height: 24px;
}
.contact-item strong {
  display: block;
  font-size: 14px;
  color: #fff;
  line-height: 1.5;
}
.form-success {
  padding: 16px;
  border-radius: 8px;
  background: rgba(196,163,90,0.15);
  color: var(--gold);
  font-weight: 700;
  text-align: center;
}
.quote-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 28px;
  border-radius: 10px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow);
  max-width: 580px;
}
.quote-form label { display: grid; gap: 6px; font-size: 13px; font-weight: 700; color: var(--ink); }
.quote-form input,
.quote-form select,
.quote-form textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #d0dfd8;
  border-radius: 8px;
  font: inherit;
  font-size: 14px;
  background: #fff;
  color: var(--ink);
  transition: border-color 0.2s;
}
.quote-form input:focus,
.quote-form select:focus,
.quote-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(45,107,71,0.12);
}
.quote-form textarea { resize: vertical; min-height: 80px; }
.form-note { margin: 0; font-size: 12px; color: var(--muted) !important; }
.quote-form button[type="submit"] { margin-top: auto; }

/* ===== Footer ===== */
.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 30px 76px;
  border-top: 1px solid var(--line);
  background: var(--paper);
}
.site-footer p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.footer-links { display: flex; gap: 20px; font-size: 13px; color: var(--muted); }
.footer-links a:hover { color: var(--accent); }
/* ===== Language Selector ===== */
.lang-selector { position: relative; display: inline-block; }
.lang-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 6px;
  padding: 4px 10px;
  color: #fff;
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
  transition: border-color 0.2s;
}
.lang-btn:hover { border-color: var(--gold); }
.lang-btn .flag { width: 20px; height: 14px; border-radius: 2px; object-fit: cover; }
.lang-label { font-size: 13px; }
.lang-btn .arrow { font-size: 9px; margin-left: 2px; }
.lang-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 6px;
  list-style: none;
  padding: 6px;
  margin: 0;
  background: var(--deep);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  min-width: 150px;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.3s ease, opacity 0.3s ease;
  z-index: 99;
}
.lang-selector.open .lang-dropdown {
  max-height: 400px;
  opacity: 1;
}
.lang-dropdown li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 6px;
  color: #ccc;
  cursor: pointer;
  font-size: 13px;
  transition: background 0.2s, color 0.2s;
}
.lang-dropdown li:hover { background: rgba(255,255,255,0.08); color: #fff; }
.lang-dropdown li.active { color: var(--gold); background: rgba(196,163,90,0.1); }
.lang-dropdown li .flag { width: 20px; height: 14px; border-radius: 2px; object-fit: cover; }

/* ===== Success Modal ===== */
.success-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
}
.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
  cursor: pointer;
}
.modal-content {
  position: relative;
  background: var(--deep);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 40px;
  max-width: 420px;
  width: 800px;
  text-align: center;
}
.modal-icon { font-size: 48px; margin-bottom: 12px; }
.modal-content h3 { color: #fff; margin: 0; font-size: 18px; }

/* ===== WhatsApp Floating Button ===== */
.whatsapp-wrap {
  position: fixed;
  z-index: 90;
  top: 58%;
  right: 24px;
  width: 56px;
  height: 56px;
  cursor: pointer;
  touch-action: auto;
}
.whatsapp-btn {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: #25D366;
  text-decoration: none;
  animation: glowPulse 1.5s ease-in-out infinite;
  transition: transform 0.2s, box-shadow 0.2s;
}
.whatsapp-wrap:hover .whatsapp-btn {
  transform: translateY(-50%) scale(1.08);
  box-shadow: 10px 16px 70px rgba(196,163,90,0.9), 8px 12px 24px rgba(0,0,0,0.25);
}

/* ===== Responsive: 980px ===== */


/* ===== Animations ===== */
@keyframes fadeUp {
  from { opacity: 0; }
  to { opacity: 1; }
}
.hero-content { animation: fadeUp 0.8s ease forwards; }

@keyframes glowPulse {
  0% { box-shadow: 6px 10px 30px rgba(196,163,90,0.4), 4px 6px 14px rgba(0,0,0,0.15); }
  50% { box-shadow: 8px 14px 70px rgba(196,163,90,0.85), 6px 10px 20px rgba(0,0,0,0.2); }
  100% { box-shadow: 6px 10px 30px rgba(196,163,90,0.4), 4px 6px 14px rgba(0,0,0,0.15); }
}/* ===== Product Center Page ===== */
.prod-hero {
  position: relative;
  height: 58vh;
  min-height: 450px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background:
    radial-gradient(1000px 500px at 12% 8%, rgba(196,163,90,0.15), transparent 55%),
    radial-gradient(900px 460px at 90% 92%, rgba(107,59,142,0.38), transparent 60%),
    linear-gradient(135deg, #0d2418 0%, #16311f 50%, #221a33 100%);
  color: #fff;
}
.prod-hero-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(255,255,255,0.05), transparent 70%);
  pointer-events: none;
}
.prod-hero-content { position: relative; z-index: 1; }
.prod-breadcrumb {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}
.prod-breadcrumb span { color: var(--gold); }
.prod-hero-title {
  font-size: 40px;
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin: 0 auto 16px;
  text-align: center;
  max-width: 80%;
}
.prod-hero h1 em { font-style: normal; color: var(--gold); }
.prod-hero-desc {
  font-size: 16px;
  color: rgba(255,255,255,0.6);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===== Stories Header ===== */
.prod-stories-header {
  text-align: center;
  padding: 60px 76px 40px;
  max-width: 780px;
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
  margin-bottom: 60px;
}
.prod-label {
  font-size: 13px;
  color: var(--gold);
  letter-spacing: 0.15em;
  margin-bottom: 12px;
  font-weight: 700;
}
.prod-stories-header h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
}
.prod-stories-header p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
}

/* ===== Product Story Alternating ===== */
.prod-story {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px 60px;
  align-items: stretch;
  max-width: 1180px;
  margin: 60px auto;
  padding: 0 76px;
  scroll-margin-top: 80px;
}
.prod-story-reverse .prod-story-visual { order: 2; }
.prod-story-reverse .prod-story-text { order: 1; }
.prod-story:last-child { margin-bottom: 0; }
@media (max-width: 640px) {
  .prod-story { grid-template-columns: 1fr; gap: 32px; }
}

.prod-story-visual {
  aspect-ratio: 4 / 3;
  min-height: 200px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.prod-story-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.2), transparent 40%);
  pointer-events: none;
}
.prod-story-emoji {
  font-size: 72px;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 8px 20px rgba(0,0,0,0.2));
}
.prod-story > .prod-series-tag {
  font-size: 11px;
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 0.12em;
  display: inline-block;
  padding: 4px 12px;
  border: 1px solid var(--gold);
  border-radius: 4px;
  margin-bottom: 20px;
}
.prod-story-text h3 {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.prod-story-text h3 small {
  font-weight: 400;
  font-size: 16px;
  color: var(--muted);
}
.prod-story-text > p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 16px;
}
.prod-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}
.prod-specs div {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.prod-specs strong {
  display: block;
  font-size: 20px;
  color: var(--ink);
}
.prod-specs span {
  font-size: 11px;
  color: var(--muted);
}

/* ===== Mini Gallery ===== */
.prod-mini-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}
.prod-mini-gallery div {
  height: 64px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  border: 1px solid var(--line);
  background: var(--soft);
}

/* ===== Product CTA Banner ===== */
.prod-cta-banner {
  margin: 60px 76px 0;
  padding: 40px;
  border-radius: 16px;
  background: radial-gradient(circle at top left, rgba(45,107,71,0.3), transparent 70%), var(--deep);
  color: #fff;
  text-align: center;
}
.prod-cta-inner { max-width: 640px; margin: 0 auto; }
.prod-cta-inner h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
}
.prod-cta-inner p {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  line-height: 1.6;
  margin-bottom: 16px;
}

/* ===== Active nav link ===== */
.main-nav a.active { color: var(--gold); font-weight: 700; }


/* ===== Product Card Links ===== */
.product-img-link { display: block; text-decoration: none; color: inherit; }
.product-img-link:hover { opacity: 0.85; transition: opacity 0.3s; }
.product-body h3 a { text-decoration: none; color: inherit; }
.product-body h3 a:hover { color: var(--accent); transition: color 0.3s; }

/* ===== Warehouse Page (Tertiary) ===== */
.ware-hero {
  position: relative;
  height: 38vh;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: var(--deep);
  color: #fff;
}
.ware-hero-bg {
  position: absolute;
  top: -40%; left: -20%;
  width: 60%; height: 80%;
  background: radial-gradient(circle, rgba(196,163,90,0.08), transparent 60%);
  pointer-events: none;
}
.ware-hero-content { position: relative; z-index: 1; max-width: 800px; padding: 0 20px; margin-top: 10vh; }
.ware-breadcrumb {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.ware-breadcrumb span { color: var(--gold); }
.ware-hero-title {
  font-size: 36px;
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin: 0 auto 12px;
  max-width: 80%;
}
.ware-hero-desc {
  font-size: 15px;
  color: rgba(255,255,255,0.6);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===== Product Cards (Shared) ===== */
.ware-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s;
  display: flex;
  flex-direction: column;
}
.ware-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.ware-card-visual {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  position: relative;
  overflow: hidden;
}
.ware-card-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.15), transparent 40%);
  pointer-events: none;
}
.ware-card-emoji { position: relative; z-index: 1; filter: drop-shadow(0 4px 12px rgba(0,0,0,0.15)); }
.ware-card-body {
  padding: 16px 18px 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.ware-card-body h4 {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 6px;
  line-height: 1.3;
}
.ware-card-body .ware-card-spec {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 4px;
  line-height: 1.5;
}
.ware-card-body .ware-card-desc {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
  margin: 0 0 12px;
  flex: 1;
}
.ware-card-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: transparent;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  align-self: flex-start;
}
.ware-card-btn:hover {
  background: var(--accent);
  color: #fff;
}

/* ===== Variant A: Tab Layout ===== */
.ware-tab-bar {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 32px 20px 0;
  flex-wrap: wrap;
}
.ware-tab-btn {
  padding: 10px 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.ware-tab-btn:hover { border-color: var(--gold); color: var(--ink); }
.ware-tab-btn.active {
  background: var(--deep);
  color: #fff;
  border-color: var(--deep);
}
.ware-tab-panel { display: none; }
.ware-tab-panel.active { display: block; }
.ware-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1180px;
  margin: 24px auto 0;
  padding: 0 76px 60px;
}
.ware-section-header {
  max-width: 1180px;
  margin: 0 auto;
  padding: 40px 76px 0;
}
.ware-section-header h2 {
  font-size: 24px;
  font-weight: 800;
}
.ware-section-header p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  max-width: 640px;
}

/* ===== Variant B: Cascade Layout ===== */
.ware-cascade-section {
  scroll-margin-top: 80px;
}
.ware-cascade-header {
  text-align: center;
  padding: 48px 76px 24px;
  max-width: 1180px;
  margin: 0 auto;
}
.ware-cascade-header .ware-series-tag {
  font-size: 11px;
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 0.12em;
  display: inline-block;
  padding: 4px 12px;
  border: 1px solid var(--gold);
  border-radius: 4px;
  margin-bottom: 12px;
}
.ware-cascade-header h2 {
  font-size: 28px;
  font-weight: 800;
  margin: 0 0 8px;
}
.ware-cascade-header p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  max-width: 560px;
  margin: 0 auto;
}
.ware-grid-cascade {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 76px 60px;
}

/* ===== Variant C: Sidebar Layout ===== */
.ware-layout-c {
  display: flex;
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 76px 60px;
  gap: 40px;
  min-height: 500px;
}
.ware-sidebar {
  width: 220px;
  flex-shrink: 0;
  position: sticky;
  top: 90px;
  align-self: flex-start;
}
.ware-sidebar-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.ware-sidebar-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.ware-sidebar-list li {
  padding: 12px 20px;
  width: 180px;
  font-size: 14px;
  font-weight: 700;
  color: var(--deep);
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s;
  margin-bottom: 8px;
  background: var(--soft);
  border-radius: 100px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.ware-sidebar-list li:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(10, 30, 20, 0.14);
  background: #fff;
}
.ware-sidebar-list li.active {
  background: var(--deep);
  color: #fff;
  box-shadow: 0 4px 16px rgba(13,36,24,0.25);
}
.ware-sidebar-list li:has(.ware-subcat-list).active {
  background: var(--soft);
  color: var(--deep);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  transform: none;
}
.ware-sidebar-list li:has(.ware-subcat-list):hover {
  transform: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  background: var(--soft);
}

.ware-main-c {
  flex: 1;
  min-width: 0;
}
.ware-main-c-header {
  margin-bottom: 24px;
}
.ware-main-c-header h2 {
  font-size: 24px;
  font-weight: 800;
  margin: 0 0 6px;
}
.ware-main-c-header p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
}
.ware-grid-c {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

/* ===== Warehouse CTA Banner (copied from products page) ===== */
.ware-cta-banner {
  margin: 0 76px 0;
  padding: 40px;
  border-radius: 16px;
  background: radial-gradient(circle at top left, rgba(45,107,71,0.3), transparent 70%), var(--deep);
  color: #fff;
  text-align: center;
}
.ware-cta-inner { max-width: 640px; margin: 0 auto; }
.ware-cta-inner h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
}
.ware-cta-inner p {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  line-height: 1.6;
  margin-bottom: 16px;
}
.ware-cta-wrapper { padding-bottom: 60px; }


/* ===== Warehouse Sidebar Count ===== */
.ware-count {
  font-size: 11px;
  color: var(--muted);
  background: var(--soft);
  padding: 2px 8px;
  border-radius: 10px;
  line-height: 1.6;
}

/* ===== Warehouse Pagination ===== */
.ware-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  padding: 24px 0 0;
  margin-top: 40px;
  border-top: 1px solid var(--line);
}
.ware-page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.ware-page-btn:hover { border-color: var(--gold); color: var(--ink); }
.ware-page-btn.active {
  background: var(--deep);
  color: #fff;
  border-color: var(--deep);
}
.ware-page-btn:disabled {
  opacity: 0.3;
  cursor: default;
}


/* ===== Warehouse Responsive ===== */
@media (max-width: 980px) {
  .ware-grid, .ware-grid-cascade { grid-template-columns: repeat(2, 1fr); padding-left: 40px; padding-right: 40px; }
  .ware-layout-c { flex-direction: column; padding-left: 40px; padding-right: 40px; }
  .ware-sidebar { width: 100%; position: static; display: flex; flex-wrap: wrap; gap: 8px; }
  .ware-sidebar-title { width: 100%; }
  .ware-sidebar-list { display: flex; flex-wrap: nowrap; gap: 6px; }
  .ware-sidebar-list li { border-left: none; width: auto; padding: 10px 14px; margin: 0; white-space: nowrap; }
  .ware-sidebar-list li.active { border-left: none; border-bottom-color: transparent; border-radius: 999px; }
  .ware-grid-c { grid-template-columns: repeat(2, 1fr); }
  .ware-section-header, .ware-cascade-header { padding-left: 40px; padding-right: 40px; }
  .ware-cta-banner { margin-left: 40px; margin-right: 40px; }
}

@media (max-width: 640px) {
  .ware-grid, .ware-grid-cascade { grid-template-columns: 1fr; padding-left: 20px; padding-right: 20px; }
  .ware-layout-c { padding-left: 20px; padding-right: 20px; }
  .ware-grid-c { grid-template-columns: 1fr; }
  .ware-hero-title { font-size: 28px; }
  .ware-section-header, .ware-cascade-header { padding-left: 20px; padding-right: 20px; }
  .ware-cta-banner { margin-left: 20px; margin-right: 20px; padding: 28px 20px; }
  .ware-tab-btn { padding: 8px 18px; font-size: 13px; }
}


.hero-logo {
  position: absolute;
  right: 40px;
  bottom: 32px;
  width: 110px;
  height: 110px;
  z-index: 2;
  pointer-events: none;
  filter: drop-shadow(0 8px 18px rgba(0,0,0,0.35));
}

/* detail pages (cp001/cp002/cp003/product-detail) + warehouse + scenarios: logo pinned to bottom-right corner, slightly smaller */
.detail-hero .hero-logo,
.ware-hero-dynamic .hero-logo,
.scene-hero .hero-logo,
.ab-hero .hero-logo,
.ab2-hero .hero-logo,
.ab3-hero .hero-logo {
  right: 4px;
  bottom: 1.11px;
  width: 100px;
  height: 100px;
}

@media (max-width: 980px) {
  .hero-logo {
    right: 24px;
    bottom: 20px;
    width: 88px;
    height: 88px;
  }
  .detail-hero .hero-logo,
  .ware-hero-dynamic .hero-logo,
  .scene-hero .hero-logo,
  .ab-hero .hero-logo,
  .ab2-hero .hero-logo,
  .ab3-hero .hero-logo {
    right: 4px;
    bottom: 1.11px;
    width: 80px;
    height: 80px;
  }
}

@media (max-width: 640px) {
  .hero-logo {
    right: 16px;
    bottom: 16px;
    width: 72px;
    height: 72px;
    opacity: 0.85;
  }
  .detail-hero .hero-logo,
  .ware-hero-dynamic .hero-logo,
  .scene-hero .hero-logo,
  .ab-hero .hero-logo,
  .ab2-hero .hero-logo,
  .ab3-hero .hero-logo {
    right: 4px;
    bottom: 1.11px;
    width: 64px;
    height: 64px;
  }
}

/* ===== Mobile Header & Nav (hamburger menu) ===== */
@media (max-width: 1100px) {
  .site-header {
    padding: 12px 20px;
    gap: 12px;
  }
  .menu-button { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(13, 36, 24, 0.98);
    padding: 6px 24px 18px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    max-height: calc(100vh - 70px);
    overflow-y: auto;
  }
  .main-nav.open { display: flex; }
  .main-nav a {
    padding: 13px 4px;
    font-size: 15px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .nav-cta { display: none; }
}


/* ===== Back Button (shared) ===== */
.back-btn {
  position:absolute; bottom:20px; left:24px; z-index:10;
  display:flex; align-items:center; gap:6px;
  padding:8px 16px; border-radius:100px;
  background:rgba(255,255,255,0.15); backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,0.25);
  color:#fff; font-size:13px; font-weight:600; cursor:pointer;
  transition:all 0.3s ease; text-decoration:none;
}
.back-btn:hover { background:rgba(255,255,255,0.25); transform:translateY(-1px); }
.back-btn svg { width:16px; height:16px; fill:currentColor; }

/* ===== About Page (about.html) ===== */
.ab-hero {
  position: relative;
  min-height: 72vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 96px;
  background:
    radial-gradient(1100px 480px at 85% 8%, rgba(107,59,142,0.38), transparent 60%),
    radial-gradient(900px 420px at 8% 92%, rgba(47,76,142,0.32), transparent 60%),
    linear-gradient(135deg, #0d2418 0%, #14301f 45%, #221a33 100%);
  overflow: hidden;
}
.ab-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(255,255,255,0.05), transparent 70%);
  pointer-events: none;
}
.ab-hero-inner { position: relative; z-index: 1; max-width: 880px; }
.ab-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.ab-hero h1 {
  font-size: clamp(40px, 7vw, 76px);
  font-weight: 900;
  color: #fff;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}
.ab-hl { color: var(--gold); }
.ab-hero-sub { font-size: 17px; color: rgba(255,255,255,0.78); margin: 0 0 10px; }
.ab-hero-note {
  font-size: 13px;
  letter-spacing: 2px;
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
  margin: 0 0 34px;
}
.ab-btn {
  display: inline-block;
  background: var(--gold);
  color: #12241a;
  font-weight: 800;
  font-size: 15px;
  padding: 14px 34px;
  border-radius: 100px;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.ab-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(196,163,90,0.35); }
.ab-btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.35); }
.ab-section { padding: 100px 24px; }
.ab-wrap { max-width: 1180px; margin: 0 auto; }
.ab-split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.ab-visual img {
  width: 100%;
  border-radius: 20px;
  display: block;
  box-shadow: var(--shadow);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.ab-copy h2, .ab-head h2 {
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 6px 0 20px;
}
.ab-lead { font-size: 16px; color: #666; line-height: 1.7; max-width: 720px; }
.ab-duo { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin: 26px 0 22px; }
.ab-duo-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px;
}
.ab-duo-item h3 { font-size: 16px; font-weight: 800; margin: 0 0 8px; }
.ab-duo-item p { font-size: 14px; color: #666; line-height: 1.65; margin: 0; }
.ab-quote { font-size: 17px; font-weight: 700; font-style: italic; margin: 0; }

/* dark sections */
.ab-philosophy { background: var(--deep); color: #fff; }
.ab-philosophy .ab-quote { color: var(--gold); }
.ab-story { background: #fff; }
.ab-timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 48px; }
.ab-timeline-card .ab-year {
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--gold);
  font-weight: 800;
  margin: 18px 0 6px;
}
.ab-timeline-card h3 { font-size: 17px; font-weight: 800; margin: 0 0 8px; }
.ab-timeline-card p { font-size: 14px; color: #666; line-height: 1.65; margin: 0; }

.ab-work { background: var(--soft); }
.ab-work-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 44px; }
.ab-work-card {
  background: #fff;
  border-radius: 18px;
  padding: 28px 24px;
  box-shadow: 0 2px 14px rgba(10,30,20,0.05);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.ab-work-card:hover { transform: translateY(-4px); box-shadow: 0 14px 34px rgba(10,30,20,0.1); }
.ab-chip {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 16px;
  background: linear-gradient(135deg, rgba(142,47,69,0.14), rgba(91,59,142,0.16));
}
.ab-work-card h3 { font-size: 16px; font-weight: 800; margin: 0 0 8px; }
.ab-work-card p { font-size: 14px; color: #666; line-height: 1.65; margin: 0; }

.ab-studio { background: var(--deep); color: #fff; }
.ab-studio .ab-quote { color: var(--gold); }
.ab-studio blockquote {
  border-left: 3px solid var(--gold);
  padding: 4px 0 4px 20px;
  font-size: 19px;
  font-weight: 800;
  color: #fff;
  margin: 24px 0 0;
}
.ab-studio .ab-copy p:not(.ab-quote) { color: rgba(255,255,255,0.72); line-height: 1.7; }

.ab-mission { background: linear-gradient(135deg, #14301f 0%, #221a33 100%); color: #fff; }
.ab-mission .ab-copy p { color: rgba(255,255,255,0.72); line-height: 1.7; }

.ab-cta { background: var(--deep); color: #fff; text-align: center; padding: 90px 24px; }
.ab-cta h2 { font-size: clamp(26px, 3.6vw, 42px); font-weight: 900; margin: 0 0 12px; }
.ab-cta p { color: rgba(255,255,255,0.7); margin: 0 0 30px; }
.ab-cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

@media (max-width: 980px) {
  .ab-split { grid-template-columns: 1fr; gap: 36px; }
  .ab-timeline { grid-template-columns: repeat(2, 1fr); }
  .ab-work-grid { grid-template-columns: repeat(2, 1fr); }
  .ab-section { padding: 72px 24px; }
}
@media (max-width: 640px) {
  .ab-timeline, .ab-work-grid, .ab-duo { grid-template-columns: 1fr; }
  .ab-hero { min-height: 60vh; padding: 100px 20px 84px; }
  .ab-hero h1 { font-size: 36px; }
  .ab-section { padding: 56px 20px; }
  .ab-cta { padding: 64px 20px; }
}
/* ===== About Alt Page (about-alt.html) — customer-first ===== */
.ab2-hero {
  position: relative;
  min-height: 76vh;
  display: flex;
  align-items: center;
  padding: 120px 24px 96px;
  background:
    radial-gradient(900px 460px at 92% 12%, rgba(107,59,142,0.4), transparent 60%),
    radial-gradient(700px 400px at 4% 96%, rgba(196,163,90,0.16), transparent 55%),
    linear-gradient(135deg, #0d2418 0%, #16311f 50%, #221a33 100%);
  overflow: hidden;
}
.ab2-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(255,255,255,0.05), transparent 70%);
  pointer-events: none;
}
.ab2-hero-grid {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 40px;
  align-items: center;
}
.ab2-hero-inner { max-width: 760px; }
.ab2-hero-mark {
  font-size: clamp(130px, 17vw, 230px);
  font-weight: 900;
  line-height: 0.9;
  text-align: right;
  letter-spacing: -0.05em;
  color: rgba(255,255,255,0.08);
  user-select: none;
  pointer-events: none;
}
.ab2-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.ab2-hero h1 {
  font-size: clamp(38px, 6.4vw, 68px);
  font-weight: 900;
  color: #fff;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}
.ab2-hero-sub { font-size: 17px; color: rgba(255,255,255,0.75); line-height: 1.6; margin: 0 0 32px; max-width: 620px; }
.ab2-cta-row { display: flex; gap: 14px; flex-wrap: wrap; }
.ab2-btn {
  display: inline-block;
  background: var(--gold);
  color: #12241a;
  font-weight: 800;
  font-size: 15px;
  padding: 15px 36px;
  border-radius: 100px;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.ab2-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(196,163,90,0.35); }
.ab2-btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.4); }
.ab2-btn-dark { background: #12241a; color: #fff; border: 1px solid rgba(18,36,26,0.4); }

.ab2-stats {
  background: #0a1c12;
  border-top: 1px solid rgba(196,163,90,0.35);
  border-bottom: 1px solid rgba(196,163,90,0.35);
  padding: 44px 24px;
}
.ab2-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.ab2-stat { text-align: center; }
.ab2-stat strong {
  display: block;
  font-size: clamp(34px, 4vw, 46px);
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
}
.ab2-stat span { font-size: 13px; color: rgba(255,255,255,0.6); letter-spacing: 1px; text-transform: uppercase; }

.ab2-section { padding: 100px 24px; }
.ab2-wrap { max-width: 1180px; margin: 0 auto; }
.ab2-split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.ab2-visual img {
  width: 100%;
  border-radius: 20px;
  display: block;
  box-shadow: var(--shadow);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.ab2-copy h2, .ab2-head h2 {
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 6px 0 20px;
}
.ab2-copy p:not(.ab2-quote) { font-size: 15px; color: #555; line-height: 1.75; margin: 0 0 14px; }
.ab2-quote {
  font-size: 18px;
  font-weight: 800;
  color: var(--accent);
  border-left: 3px solid var(--gold);
  padding: 2px 0 2px 18px;
  margin: 18px 0 0;
  line-height: 1.5;
}

.ab2-scenes { background: var(--deep); color: #fff; }
.ab2-scenes .ab2-lead { color: rgba(255,255,255,0.65); }
.ab2-lead { font-size: 16px; line-height: 1.7; max-width: 720px; margin: 0; }
.ab2-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: minmax(150px, auto);
  gap: 16px;
  margin-top: 48px;
}
.ab2-scene {
  position: relative;
  margin: 0;
  border-radius: 18px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  transition: transform 0.3s ease;
}
.ab2-scene:hover { transform: translateY(-4px); }
.ab2-scene-wide { grid-column: span 2; grid-row: span 2; aspect-ratio: auto; }
.ab2-scene img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ab2-scene figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 44px 18px 14px;
  background: linear-gradient(to top, rgba(6,14,10,0.88), transparent);
  color: #fff;
}
.ab2-scene figcaption strong { display: block; font-size: 15px; font-weight: 800; margin-bottom: 3px; }
.ab2-scene figcaption span { display: block; font-size: 12px; color: rgba(255,255,255,0.65); letter-spacing: 0.3px; }

.ab2-benefits { background: var(--soft); }
.ab2-ben-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; }
.ab2-ben {
  background: #fff;
  border-radius: 18px;
  padding: 28px 24px;
  box-shadow: 0 2px 14px rgba(10,30,20,0.05);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.ab2-ben:hover { transform: translateY(-4px); box-shadow: 0 14px 34px rgba(10,30,20,0.1); }
.ab2-chip {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 16px;
  background: linear-gradient(135deg, rgba(142,47,69,0.14), rgba(91,59,142,0.16));
}
.ab2-ben h3, .ab2-serve-card h3 { font-size: 16px; font-weight: 800; margin: 0 0 8px; }
.ab2-ben p, .ab2-serve-card p { font-size: 14px; color: #666; line-height: 1.65; margin: 0; }

.ab2-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 48px; }
.ab2-step { position: relative; padding: 28px 22px 24px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.ab2-num {
  font-size: 26px;
  font-weight: 900;
  color: var(--gold);
  margin-bottom: 12px;
  line-height: 1;
}
.ab2-step h3 { font-size: 15px; font-weight: 800; margin: 0 0 8px; }
.ab2-step p { font-size: 13px; color: #888; line-height: 1.6; margin: 0; }

.ab2-serve { background: linear-gradient(135deg, #14301f 0%, #221a33 100%); color: #fff; }
.ab2-serve-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; }
.ab2-serve-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 18px;
  padding: 28px 24px;
}
.ab2-serve-card p { color: rgba(255,255,255,0.68); }
.ab2-serve .ab2-chip { background: rgba(255,255,255,0.1); }

.ab2-cta {
  background: linear-gradient(120deg, #c4a35a 0%, #d9bc78 55%, #b3904a 100%);
  color: #12241a;
  text-align: center;
  padding: 90px 24px;
}
.ab2-cta h2 { font-size: clamp(26px, 3.6vw, 42px); font-weight: 900; margin: 0 0 12px; }
.ab2-cta p { font-weight: 600; margin: 0 0 30px; opacity: 0.85; }
.ab2-cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

@media (max-width: 980px) {
  .ab2-hero-grid { grid-template-columns: 1fr; }
  .ab2-hero-mark { display: none; }
  .ab2-split { grid-template-columns: 1fr; gap: 36px; }
  .ab2-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .ab2-gallery { grid-template-columns: repeat(2, 1fr); }
  .ab2-ben-grid, .ab2-steps { grid-template-columns: repeat(2, 1fr); }
  .ab2-section { padding: 72px 24px; }
}
@media (max-width: 640px) {
  .ab2-hero { min-height: 62vh; padding: 104px 20px 84px; text-align: center; }
  .ab2-hero h1 { font-size: 34px; }
  .ab2-hero-sub { font-size: 15px; }
  .ab2-cta-row, .ab2-cta-actions { justify-content: center; }
  .ab2-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .ab2-gallery, .ab2-ben-grid, .ab2-steps, .ab2-serve-grid { grid-template-columns: 1fr; }
  .ab2-scene-wide { grid-column: span 1; grid-row: span 1; aspect-ratio: 4 / 3; }
  .ab2-section { padding: 56px 20px; }
  .ab2-cta { padding: 64px 20px; }
}
/* ===== Journey text block (about.html + about-alt.html) ===== */
.ab-journey { background: #0d2418; color: #fff; padding: 96px 24px; text-align: center; }
.abj-inner { max-width: 840px; margin: 0 auto; }
.abj-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.ab-journey h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin: 0 0 10px;
}
.abj-sub { color: rgba(255,255,255,0.6); font-size: 15px; margin: 0 0 40px; }
.abj-list { list-style: none; margin: 0; padding: 0; text-align: left; }
.abj-item {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.abj-year { font-weight: 900; color: var(--gold); font-size: 15px; letter-spacing: 1px; padding-top: 3px; white-space: nowrap; }
.abj-item p { margin: 0; font-size: 15px; line-height: 1.75; color: rgba(255,255,255,0.85); }
.abj-close { margin-top: 36px; font-size: 17px; font-weight: 800; color: var(--gold); }
@media (max-width: 640px) {
  .abj-item { grid-template-columns: 1fr; gap: 6px; padding: 14px 0; }
  .ab-journey { padding: 64px 20px; }
}
/* ===== About V3 Page (about-v3.html) — supplier trust page ===== */
/* 首屏舞台：hero + stats 合计 = 100vh（111.11vh 是全局 body zoom 0.9 的补偿，视觉上恰好铺满一屏） */
.ab3-stage {
  min-height: 111.11vh;
  display: flex;
  flex-direction: column;
}
.ab3-hero {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 64px;
  background:
    radial-gradient(1000px 500px at 12% 8%, rgba(196,163,90,0.15), transparent 55%),
    radial-gradient(900px 460px at 90% 92%, rgba(107,59,142,0.38), transparent 60%),
    linear-gradient(135deg, #0d2418 0%, #16311f 50%, #221a33 100%);
  overflow: hidden;
}
.ab3-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(255,255,255,0.05), transparent 70%);
  pointer-events: none;
}
.ab3-hero-inner { position: relative; z-index: 1; max-width: 860px; }
.ab3-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.ab3-hero h1 {
  font-size: clamp(36px, 5.8vw, 60px);
  font-weight: 900;
  color: #fff;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}
.ab3-hero-sub { font-size: 17px; color: rgba(255,255,255,0.75); line-height: 1.6; margin: 0 0 32px; max-width: 640px; margin-left: auto; margin-right: auto; }
.ab3-cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.ab3-btn {
  display: inline-block;
  background: var(--gold);
  color: #12241a;
  font-weight: 800;
  font-size: 15px;
  padding: 15px 36px;
  border-radius: 100px;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.ab3-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(196,163,90,0.35); }
.ab3-btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.4); }
.ab3-btn-dark { background: #12241a; color: #fff; border: 1px solid rgba(18,36,26,0.4); }

.ab3-stats {
  position: relative;
  background: #0a1c12;
  border-top: 1px solid rgba(196,163,90,0.35);
  border-bottom: 1px solid rgba(196,163,90,0.35);
  padding: 44px 24px 76px;
}
.ab3-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.ab3-stat { text-align: center; }
.ab3-stat strong {
  display: block;
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
}
.ab3-stat span { font-size: 13px; color: rgba(255,255,255,0.6); letter-spacing: 1px; text-transform: uppercase; }

.ab3-section { padding: 100px 24px; }
.ab3-wrap { max-width: 1180px; margin: 0 auto; }
.ab3-split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: stretch; }
.ab3-visual { display: flex; }
.ab3-visual img {
  width: 100%;
  flex: 1;
  height: 100%;
  border-radius: 20px;
  display: block;
  box-shadow: var(--shadow);
  object-fit: cover;
}
.ab3-copy h2, .ab3-head h2 {
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 6px 0 20px;
}
.ab3-copy p:not(.ab3-quote) { font-size: 15px; color: #555; line-height: 1.75; margin: 0 0 14px; }
.ab3-quote {
  font-size: 18px;
  font-weight: 800;
  color: var(--accent);
  border-left: 3px solid var(--gold);
  padding: 2px 0 2px 18px;
  margin: 18px 0 26px;
  line-height: 1.5;
}
.ab3-proof {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.ab3-proof-item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 4px 10px;
  background: var(--soft);
  border-radius: 14px;
  padding: 14px 16px;
}
.ab3-proof-item span { font-size: 12px; font-weight: 900; color: var(--gold); grid-row: span 2; padding-top: 2px; }
.ab3-proof-item strong { font-size: 14px; font-weight: 800; }
.ab3-proof-item small { font-size: 12px; color: #888; }

.ab3-scenes { background: var(--deep); color: #fff; }
.ab3-scenes .ab3-lead { color: rgba(255,255,255,0.65); }
.ab3-lead { font-size: 16px; line-height: 1.7; max-width: 720px; margin: 0; }
.ab3-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 48px;
}
.ab3-scene {
  position: relative;
  margin: 0;
  border-radius: 18px;
  overflow: hidden;
  aspect-ratio: auto;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease;
}
.ab3-scene:hover { transform: translateY(-4px); }
.ab3-scene > img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; flex: 0 0 auto; }
.ab3-scene figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 44px 18px 14px;
  background: linear-gradient(to top, rgba(6,14,10,0.88), transparent);
  color: #fff;
}
.ab3-scene figcaption strong { display: block; font-size: 15px; font-weight: 800; margin-bottom: 3px; }
.ab3-scene figcaption span { display: block; font-size: 12px; color: rgba(255,255,255,0.65); }

.ab3-faq { background: var(--soft); }
.ab3-faq-list { max-width: 860px; margin: 40px auto 0; }
.ab3-faq details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0 22px;
  margin-bottom: 12px;
}
.ab3-faq summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 15px;
  padding: 18px 0;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.ab3-faq summary::-webkit-details-marker { display: none; }
.ab3-faq summary::after { content: "+"; font-size: 20px; font-weight: 800; color: var(--gold); flex-shrink: 0; }
.ab3-faq details[open] summary::after { content: "\2013"; }
.ab3-faq details p { margin: 0; padding: 0 0 18px; font-size: 14px; color: #555; line-height: 1.7; }

.ab3-promises { background: linear-gradient(135deg, #14301f 0%, #221a33 100%); color: #fff; }
.ab3-prom-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 44px; }
.ab3-prom {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 18px;
  padding: 28px 24px;
}
.ab3-num { font-size: 24px; font-weight: 900; color: var(--gold); margin-bottom: 12px; line-height: 1; }
.ab3-prom h3 { font-size: 16px; font-weight: 800; margin: 0 0 8px; }
.ab3-prom p { font-size: 14px; color: rgba(255,255,255,0.68); line-height: 1.65; margin: 0; }

.ab3-cta {
  background: linear-gradient(120deg, #c4a35a 0%, #d9bc78 55%, #b3904a 100%);
  color: #12241a;
  text-align: center;
  padding: 90px 24px;
}
.ab3-cta h2 { font-size: clamp(26px, 3.6vw, 42px); font-weight: 900; margin: 0 0 12px; }
.ab3-cta p { font-weight: 600; margin: 0 0 30px; opacity: 0.85; }
.ab3-cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

@media (max-width: 980px) {
  .ab3-split { grid-template-columns: 1fr; gap: 36px; }
  .ab3-visual { display: block; }
  .ab3-visual img { height: auto; aspect-ratio: 4 / 3; }
  .ab3-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .ab3-gallery { grid-template-columns: repeat(2, 1fr); }
  .ab3-prom-grid { grid-template-columns: repeat(2, 1fr); }
  .ab3-section { padding: 72px 24px; }
}
@media (max-width: 640px) {
  .ab3-hero { min-height: 62vh; padding: 104px 20px 52px; }
  .ab3-hero h1 { font-size: 34px; }
  .ab3-hero-sub { font-size: 15px; }
  .ab3-stats-grid { gap: 18px; }
  .ab3-stats { padding: 44px 20px 76px; }
  .ab3-gallery, .ab3-prom-grid, .ab3-proof { grid-template-columns: 1fr; }
  .ab3-section { padding: 56px 20px; }
  .ab3-cta { padding: 64px 20px; }
}

/* ===== About V3 WHO WE REALLY ARE 图片轮播 + 大图灯箱 ===== */
.ab3-real-carousel {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
  overflow: hidden;
  border-radius: 20px;
  box-shadow: var(--shadow);
  touch-action: pan-y;
  outline: none;
}
.ab3-real-track {
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform 0.5s ease;
}
.ab3-real-slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  cursor: zoom-in;
  overflow: hidden;
}
.ab3-real-slide img {
  -webkit-user-drag: none;
  user-select: none;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}
.ab3-real-slide:hover img { transform: scale(1.07); }
.ab3-real-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.35);
  background: rgba(10,28,18,0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #fff;
  font-size: 22px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.3s ease, background 0.3s ease;
}
.ab3-real-carousel:hover .ab3-real-arrow { opacity: 1; }
.ab3-real-arrow:hover { background: rgba(196,163,90,0.55); }
.ab3-real-prev { left: 14px; }
.ab3-real-next { right: 14px; }
.ab3-real-dots {
  position: absolute;
  bottom: 12px;
  left: 0;
  right: 0;
  z-index: 3;
  display: flex;
  justify-content: center;
  gap: 8px;
}
.ab3-real-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: none;
  padding: 0;
  background: rgba(255,255,255,0.45);
  cursor: pointer;
  transition: background 0.3s ease, transform 0.3s ease;
}
.ab3-real-dot.active { background: var(--gold); transform: scale(1.25); }
.ab3-lightbox {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(4,10,7,0.94);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  padding: 48px;
}
.ab3-lightbox.open { opacity: 1; visibility: visible; }
.ab3-lightbox-img {
  max-width: 90vw;
  max-height: 84vh;
  border-radius: 14px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.55);
}
.ab3-lightbox-close {
  position: absolute;
  top: 22px;
  right: 26px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  z-index: 2;
}
.ab3-lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-size: 26px;
  cursor: pointer;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ab3-lightbox-prev { left: 22px; }
.ab3-lightbox-next { right: 22px; }
@media (max-width: 980px) {
  .ab3-real-carousel { flex: none; width: 100%; aspect-ratio: 4 / 3; }
  .ab3-real-arrow { opacity: 1; width: 36px; height: 36px; }
}
@media (max-width: 640px) {
  .ab3-lightbox { padding: 24px; }
  .ab3-lightbox-nav { width: 40px; height: 40px; }
  .ab3-lightbox-prev { left: 8px; }
  .ab3-lightbox-next { right: 8px; }
}


/* ===== About V3 REAL PLACES, REAL WORK 场景图悬停放大 ===== */
.ab3-scene { cursor: zoom-in; }
.ab3-scene img { transition: transform 0.6s ease; }
.ab3-scene:hover .ab3-scene-main { transform: scale(1.07); }


.ab3-scene-thumbs {
  display: flex;
  gap: 8px;
  padding: 10px;
  overflow-x: auto;
  scrollbar-width: thin;
}
.ab3-scene-thumb {
  width: 54px;
  height: 54px;
  flex: 0 0 auto;
  object-fit: cover;
  border-radius: 8px;
  border: 2px solid rgba(255,255,255,0.18);
  cursor: pointer;
  opacity: 0.82;
  transition: opacity 0.2s ease, border-color 0.2s ease;
}
.ab3-scene-thumb:hover { opacity: 1; }
.ab3-scene-thumb.active { border-color: #fff; opacity: 1; }

/* ===== Honeypot (anti-spam, hidden from humans & screen readers) ===== */
input.hp-field { position: absolute !important; left: -9999px !important; width: 1px !important; height: 1px; overflow: hidden; opacity: 0; }

/* ===== Accessibility: visible keyboard focus (Phase 4) ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== Mobile grids & spacing (max-width 640px) ===== */
@media (max-width: 640px) {
  .section-pad {
    padding: 64px 20px;
  }
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .service-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .scenario-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .about {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .process-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .contact {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .prod-specs {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .prod-mini-gallery {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .ware-grid-c {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .ab2-gallery {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .section-header-flex {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .lang-selector .lang-label { display: none; }
  h1, h2, h3 { overflow-wrap: anywhere; }
}

/* ===== Mobile typography (Phase 2): 手机端标题层次/行高/字距优化，桌面端不受影响 ===== */
@media (max-width: 768px) {
  h1 {
    font-size: 30px;
    line-height: 1.3;
    letter-spacing: -0.015em;
    margin-bottom: 14px;
  }
  h2 {
    font-size: 28px;
    line-height: 1.28;
    letter-spacing: -0.01em;
  }
  h3 {
    font-size: 18px;
    line-height: 1.4;
  }
  .hero-content h1 {
    font-size: 34px;
    line-height: 1.24;
  }
  .contact-title,
  .prod-hero-title {
    font-size: 32px;
    line-height: 1.25;
  }
  .section-heading {
    margin-bottom: 30px;
  }
}
@media (max-width: 640px) {
  h1 {
    font-size: 27px;
    line-height: 1.32;
  }
  h2 {
    font-size: 25px;
    line-height: 1.3;
  }
  .hero-content h1 {
    font-size: 31px;
    line-height: 1.26;
  }
  .contact-title,
  .prod-hero-title {
    font-size: 28px;
  }
  .section-heading {
    margin-bottom: 26px;
  }
}

/* ===== Homepage mobile rhythm (Phase 3): 首页手机端整体节奏微调（桌面端不受影响） ===== */
@media (max-width: 768px) {
  .hero { min-height: 640px; }
  .hero-content { padding: 96px 28px 48px; }
  .hero-actions { margin: 40px 0 24px; }
  .about-heading h2 { font-size: 32px; line-height: 1.2; }
  .section-header-flex h2 { font-size: 28px; }
}

@media (max-width: 640px) {
  .hero { min-height: 100vh; min-height: 100svh; justify-content: flex-start; }
  .hero-content { padding: 108px 20px 48px; }
  .eyebrow { font-size: 12px; letter-spacing: 0.06em; margin-bottom: 12px; }
  .hero-copy { font-size: 14px; line-height: 1.65; }
  .hero-actions { flex-direction: column; align-items: stretch; gap: 12px; margin: 32px 0 24px; }
  .hero-actions .button { width: 100%; }
  .trust-strip { gap: 8px; }
  .trust-strip span { padding: 7px 12px; font-size: 11.5px; }
  .stats-section { margin-top: -28px; padding-bottom: 40px; }
  .stat-card { padding: 14px 10px; }
  .stat-card strong { font-size: 17px; margin-bottom: 6px; }
  .stat-card span { font-size: 11.5px; line-height: 1.4; }
  .product-img { min-height: 0; }
  .product-img img { height: 150px !important; }
  .product-body { padding: 16px 12px; }
  .product-body h3 { font-size: 16px; margin-bottom: 8px; }
  .product-body p { font-size: 13px; line-height: 1.55; }
  .product-body .button { min-height: 40px; padding: 0 14px; font-size: 13px; }
  .service-grid article { padding: 20px 16px; }
  .service-number { font-size: 26px; margin-bottom: 10px; }
  .service-grid h3 { font-size: 16px; }
  .service-grid p { font-size: 13px; line-height: 1.6; }
  .section-header-flex { margin-bottom: 28px; gap: 14px; }
  .scenario-info { padding: 14px 14px 16px; }
  .about-heading { margin-top: 28px; margin-bottom: 24px; text-align: center; }
  .about-heading h2 { font-size: 28px; margin-bottom: 14px; }
  .about-image { min-height: 260px; font-size: 56px; border-radius: 14px; }
  .about-desc { font-size: 15px; margin-top: 24px; line-height: 1.7; }
  .contact-title { margin-bottom: 12px; }
  .contact-subtitle { font-size: 15px; line-height: 1.65; margin-bottom: 24px; }
  .contact-item { padding: 13px 14px; gap: 12px; }
  .contact-item strong { font-size: 13px; }
  .contact-item span:not(.contact-icon) { font-size: 11.5px; }
  .contact-icon { width: 34px; height: 34px; font-size: 16px; }
  .contact-icon-img { width: 18px; height: 18px; }
  .quote-form { padding: 20px 16px; }
  .section-pad { padding: 56px 20px; }
}

/* ===== Inner pages mobile polish (Phase 4): 内页手机端微调（桌面端不受影响） ===== */
@media (max-width: 768px) {
  .prod-hero { min-height: 400px; }
  .prod-story { padding-left: 28px; padding-right: 28px; margin: 48px auto; }
  .prod-stories-header { padding-left: 28px; padding-right: 28px; }
  .prod-cta-banner { margin-left: 28px; margin-right: 28px; }
}

@media (max-width: 640px) {
  .prod-hero { height: auto; min-height: 340px; padding: 104px 20px 44px; }
  .prod-hero-title { max-width: 100%; }
  .prod-hero-desc { font-size: 15px; }
  .prod-breadcrumb { margin-bottom: 14px; }
  .prod-stories-header { padding: 44px 20px 28px; margin-bottom: 40px; }
  .prod-story { margin: 40px auto; padding: 0 20px; gap: 24px; }
  .prod-story-text h3 { font-size: 22px; }
  .prod-story-text > p { font-size: 14px; line-height: 1.65; }
  .prod-specs { gap: 8px; }
  .prod-specs strong { font-size: 17px; }
  .prod-mini-gallery { gap: 8px; }
  .prod-mini-gallery div { height: 52px; font-size: 20px; }
  .prod-cta-banner { margin: 40px 20px 0; padding: 32px 20px; }
  .prod-cta-inner h2 { font-size: 24px; }
  .prod-cta-inner p { font-size: 14px; }
  .prod-story .button { width: 100%; }
  .ab3-cta-row { flex-direction: column; width: 100%; }
  .ab3-btn { width: 100%; text-align: center; }
  .back-btn { bottom: 12px; left: 12px; padding: 7px 13px; font-size: 12px; }
  .ware-pagination { gap: 5px; margin-top: 28px; }
  .ware-page-btn { min-width: 32px; height: 32px; font-size: 12px; padding: 0 8px; }
}

/* ===== Mobile refinements (2026-08-03 round 2): 用户7项调整，桌面端不受影响 ===== */

@media (max-width: 768px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}

@media (max-width: 640px) {
  .hero-content h1 {
    font-size: 27px;
    line-height: 1.32;
    letter-spacing: -0.01em;
    font-weight: 800;
  }
  .eyebrow { letter-spacing: 0.08em; }
  .trust-strip {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 12px;
    justify-items: start;
    margin-top: 16px;
  }
  .trust-strip span { padding: 8px 12px; font-size: 11.5px; }
  .service-grid article { padding: 16px 14px; }
  .service-number { font-size: 24px; margin-bottom: 8px; }
  .service-grid h3 { font-size: 15px; }
  .process-grid div { padding: 18px 14px; }
  .process-grid strong { font-size: 28px; margin-bottom: 10px; }
  .process-grid h3 { font-size: 15px; }
  .prod-specs { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .prod-specs strong { font-size: 15px; }
  .prod-specs span { font-size: 10px; }
  .prod-mini-gallery { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .prod-mini-gallery div { height: 44px; font-size: 17px; }
}

/* ===== Hero copy rhythm (2026-08-03 round 3): 首屏文案节奏排版，仅手机端、仅 hero 区 ===== */
@media (max-width: 640px) {
  .hero-content .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 11px;
    letter-spacing: 0.12em;
    margin-bottom: 16px;
  }
  .hero-content .eyebrow::before {
    content: "";
    width: 26px;
    height: 2px;
    border-radius: 2px;
    background: var(--gold);
    flex-shrink: 0;
  }
  .hero-content h1 {
    font-size: 29px;
    font-weight: 900;
    line-height: 1.28;
    letter-spacing: -0.02em;
    margin-bottom: 14px;
  }
  .hero-copy {
    font-size: 14px;
    line-height: 1.78;
    color: rgba(255,255,255,0.72);
    max-width: 330px;
  }
  .hero-actions { margin: 70px 0 36px; }
  .trust-strip { margin-top: 14px; }
}

/* ===== Hero copy line-spacing (2026-08-03 round 4): 首屏文案行距调散，仅手机端 hero 区 ===== */
@media (max-width: 640px) {
  .hero-content .eyebrow {
    line-height: 1.6;
    margin-bottom: 18px;
  }
  .hero-content h1 {
    line-height: 1.42;
    margin-bottom: 18px;
  }
  .hero-copy {
    line-height: 2.05;
  }
}

/* ===== Product grid 4th cell "View Full Catalog" (2026-08-03) ===== */
.product-card-more { display: none; }
@media (max-width: 640px) {
  .product-card-more {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 150px;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 10px;
    background: linear-gradient(135deg, #1a3d28, #2d6b47);
    color: #fff;
    text-align: center;
    text-decoration: none;
    transition: border-color 0.2s, color 0.2s, background 0.2s;
  }
  .product-card-more:hover {
    border-color: var(--gold);
    background: linear-gradient(135deg, #2d6b47, #3a8a5e);
  }
  .product-more-icon { font-size: 24px; line-height: 1; color: var(--gold); }
  .product-more-text { font-size: 13px; font-weight: 700; letter-spacing: 0.02em; color: #fff; }
}

/* ===== Module subtitles -2px (2026-08-03): 手机端所有模块副标题统一小2号，桌面端不受影响 ===== */
@media (max-width: 640px) {
  .hero-copy { font-size: 14px; }
  .section-heading p { font-size: 14px; }
  .section-header-flex p { font-size: 14px; }
  .contact-subtitle { font-size: 13px; }
  .prod-hero-desc { font-size: 13px; }
  .ab3-hero-sub { font-size: 13px; }
  .ab3-lead { font-size: 14px; }
  .about-desc { font-size: 13px; }
}

/* ===== Products story vertical order (2026-08-03): SERIES标签-图片-数据 上中下（桌面左右布局不变） ===== */
.prod-story > .prod-series-tag { grid-column: 2; grid-row: 1; align-self: start; }
.prod-story > .prod-story-visual { grid-column: 1; grid-row: 1 / span 2; }
.prod-story > .prod-story-text { grid-column: 2; grid-row: 1; padding-top: 48px; }
.prod-story-reverse > .prod-series-tag { grid-column: 1; grid-row: 1; align-self: start; }
.prod-story-reverse > .prod-story-visual { grid-column: 2; grid-row: 1 / span 2; }
.prod-story-reverse > .prod-story-text { grid-column: 1; grid-row: 1; padding-top: 48px; }

@media (max-width: 640px) {
  .prod-story > .prod-series-tag,
  .prod-story-reverse > .prod-series-tag {
    grid-column: 1;
    grid-row: 1;
    align-self: auto;
    margin-bottom: 0;
  }
  .prod-story > .prod-story-visual,
  .prod-story-reverse > .prod-story-visual {
    grid-column: 1;
    grid-row: 2;
  }
  .prod-story > .prod-story-text,
  .prod-story-reverse > .prod-story-text {
    grid-column: 1;
    grid-row: 3;
    padding-top: 0;
  }
}

/* ===== Footer mobile (2026-08-03): 手机端左右对齐、收窄内边距 ===== */
@media (max-width: 640px) {
  .site-footer {
    padding: 24px 20px;
    flex-wrap: wrap;
    gap: 14px 20px;
  }
  .footer-links { flex-wrap: wrap; gap: 14px 18px; }
}

/* ===== Video more-videos two lines (2026-08-03): 手机端 More videos 提示分两行 ===== */
.video-more .video-more-line2 { margin-left: 4px; }
@media (max-width: 640px) {
  .video-more { flex-wrap: wrap; row-gap: 4px; }
  .video-more .video-more-line2 {
    flex: 1 1 100%;
    margin-left: 0;
    padding-left: 24px;
  }
}