/* ==========================================================================
   邵东市富利佳工具有限责任公司 官网样式
   深蓝 × 金黄 · 苹果式滚动动效 · mobile-first
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root {
  --navy-950: #050f24;
  --navy-900: #081630;
  --navy-800: #0b1e46;
  --navy-700: #12295c;
  --navy-600: #1b3a77;
  --gold: #f5b301;
  --gold-deep: #d89a00;
  --gold-soft: #fff4d6;
  --ink: #16202e;
  --muted: #5b6675;
  --bg: #ffffff;
  --bg-soft: #f5f7fa;
  --bg-card: #fbfcfe;
  --line: #e6eaf0;
  --white: #ffffff;

  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;

  --ease-apple: cubic-bezier(0.28, 0.11, 0.32, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --t-fast: 0.35s;
  --t-med: 0.6s;
  --t-slow: 0.9s;

  --radius-s: 10px;
  --radius-m: 16px;
  --radius-l: 24px;
  --shadow-1: 0 2px 12px rgba(8, 22, 48, 0.06);
  --shadow-2: 0 12px 40px rgba(8, 22, 48, 0.12);
  --shadow-3: 0 24px 80px rgba(8, 22, 48, 0.22);

  --nav-h: 64px;
  --container: 1200px;
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 10px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
  -webkit-user-drag: none;
  user-select: none;
  -webkit-touch-callout: none;
}
figure { margin: 0; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; font-weight: 700; }
p { margin: 0; }

::selection { background: var(--gold); color: var(--navy-900); }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

/* 防止 grid 子项的 min-content（如 nowrap 大表格）撑爆版心 */
.about-grid > *, .tech-grid > *, .contact-grid > *, .story > *,
.product-grid > *, .series-intro > *, .culture-grid > * {
  min-width: 0;
}

.section { padding-block: clamp(72px, 9vw, 120px); }
.section--soft { background: var(--bg-soft); }
.section--navy {
  background: linear-gradient(160deg, var(--navy-900), var(--navy-800) 55%, var(--navy-700));
  color: #dfe7f5;
}

/* ---------- 区块标题 ---------- */
.sec-head { max-width: 720px; margin-bottom: clamp(36px, 5vw, 64px); }
.sec-head--center { margin-inline: auto; text-align: center; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--gold);
}
.sec-head--center .eyebrow::after {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--gold);
}
.section--navy .eyebrow { color: var(--gold); }

.sec-title {
  font-size: clamp(28px, 4.2vw, 42px);
  letter-spacing: 0.01em;
  color: var(--navy-900);
}
.section--navy .sec-title { color: var(--white); }

.sec-sub {
  margin-top: 14px;
  color: var(--muted);
  font-size: clamp(15px, 1.6vw, 17px);
}
.section--navy .sec-sub { color: #a8b6d4; }

/* ==========================================================================
   滚动动效（苹果式）
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translate3d(0, 30px, 0);
  transition:
    opacity var(--t-slow) var(--ease-out),
    transform var(--t-slow) var(--ease-out);
  transition-delay: var(--d, 0ms);
  will-change: opacity, transform;
}
.reveal-blur {
  filter: blur(8px);
  transition:
    opacity var(--t-slow) var(--ease-out),
    transform var(--t-slow) var(--ease-out),
    filter var(--t-slow) var(--ease-out);
}
.reveal.is-inview {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  filter: blur(0);
}

/* ==========================================================================
   导航
   ========================================================================== */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  color: var(--white);
  transition:
    transform 0.45s var(--ease-apple),
    background-color 0.35s ease,
    box-shadow 0.35s ease;
}
.nav--hidden { transform: translateY(-100%); }
.nav--solid {
  background: rgba(8, 22, 48, 0.82);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  backdrop-filter: saturate(180%) blur(18px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  object-fit: cover;
  background: var(--white);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text b { font-size: 16px; }
.brand-text span {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  opacity: 0.72;
}

.nav-links {
  display: none;
  align-items: center;
  gap: 6px;
}
.nav-links a {
  position: relative;
  padding: 8px 14px;
  font-size: 14.5px;
  font-weight: 500;
  border-radius: 999px;
  opacity: 0.85;
  transition: opacity var(--t-fast), background-color var(--t-fast);
}
.nav-links a:hover { opacity: 1; background: rgba(255, 255, 255, 0.1); }
.nav-links a.active { opacity: 1; color: var(--gold); }

.nav-cta {
  display: none;
  padding: 9px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--navy-900);
  background: var(--gold);
  border-radius: 999px;
  transition: transform var(--t-fast) var(--ease-apple), box-shadow var(--t-fast);
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(245, 179, 1, 0.35); }

/* 汉堡按钮 */
.burger {
  position: relative;
  z-index: 102;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 10px;
}
.burger span,
.burger span::before,
.burger span::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.35s var(--ease-apple), opacity 0.25s;
}
.burger span::before { transform: translateY(-6px); }
.burger span::after { transform: translateY(4px); }
.burger.is-open span { transform: rotate(45deg); }
.burger.is-open span::before { transform: rotate(90deg); }
.burger.is-open span::after { transform: translateY(-2px) rotate(90deg); opacity: 0; }

/* 移动端抽屉 */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 101;
  background: rgba(5, 15, 36, 0.96);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 32px 40px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease-apple), visibility 0s 0.4s;
}
.drawer.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.4s var(--ease-apple);
}
.drawer a {
  padding: 16px 4px;
  font-size: 24px;
  font-weight: 600;
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out), color 0.3s;
}
.drawer.is-open a { opacity: 1; transform: none; }
.drawer a:hover { color: var(--gold); }
.drawer a small {
  display: block;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: #8fa0c4;
}
.drawer-tel {
  margin-top: 28px;
  font-size: 15px !important;
  font-weight: 500 !important;
  color: var(--gold) !important;
  border-bottom: 0 !important;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background:
    radial-gradient(1100px 520px at 85% 110%, rgba(27, 58, 119, 0.9), transparent 60%),
    linear-gradient(150deg, var(--navy-950) 0%, var(--navy-800) 58%, var(--navy-700) 100%);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.5;
  filter: blur(16px) brightness(0.5);
  transform: scale(1.06);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 15, 36, 0.35), transparent 30%, transparent 62%, rgba(5, 15, 36, 0.85));
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 40px;
  padding-top: calc(var(--nav-h) + 32px);
  padding-bottom: 96px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: #c8d4ec;
  text-transform: uppercase;
}
.hero-eyebrow::before { content: ""; width: 34px; height: 2px; background: var(--gold); }

.hero-title {
  margin-top: 18px;
  font-size: clamp(34px, 7.2vw, 64px);
  font-weight: 800;
  letter-spacing: 0.02em;
}
.hero-title .gold {
  color: var(--gold);
  background: linear-gradient(100deg, var(--gold), #ffd75e);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-en {
  margin-top: 12px;
  font-size: clamp(12px, 1.6vw, 15px);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: #8fa0c4;
}
.hero-desc {
  margin-top: 20px;
  max-width: 520px;
  color: #b9c6e0;
  font-size: clamp(15px, 1.8vw, 17px);
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 15.5px;
  font-weight: 600;
  transition: transform var(--t-fast) var(--ease-apple), box-shadow var(--t-fast), background-color var(--t-fast), color var(--t-fast);
}
.btn-gold { background: var(--gold); color: var(--navy-900); box-shadow: 0 10px 30px rgba(245, 179, 1, 0.3); }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(245, 179, 1, 0.42); }
.btn-ghost { color: var(--white); border: 1px solid rgba(255, 255, 255, 0.35); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.12); transform: translateY(-2px); }

.hero-visual {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
}
.hero-visual img {
  width: min(78vw, 460px);
  border-radius: var(--radius-l);
  box-shadow: var(--shadow-3);
  animation: heroFloat 7s ease-in-out infinite;
}
@keyframes heroFloat {
  0%, 100% { transform: translateY(0) rotate(0.001deg); }
  50% { transform: translateY(-14px) rotate(0.001deg); }
}

.hero-cue {
  position: absolute;
  left: 50%;
  bottom: 26px;
  z-index: 3;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: #8fa0c4;
}
.hero-cue i {
  width: 1px;
  height: 44px;
  background: linear-gradient(var(--gold), transparent);
  animation: cueDrop 1.8s var(--ease-apple) infinite;
}
@keyframes cueDrop {
  0% { transform: scaleY(0); transform-origin: top; }
  45% { transform: scaleY(1); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ==========================================================================
   走进富利佳
   ========================================================================== */

/* 数据条 */
.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-2);
  background-image: linear-gradient(135deg, var(--navy-900), var(--navy-700));
}
.stat {
  background: rgba(255, 255, 255, 0.04);
  padding: clamp(22px, 3.4vw, 40px) 18px;
  text-align: center;
}
.stat-num {
  font-size: clamp(30px, 4.6vw, 48px);
  font-weight: 800;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.stat-num sup { font-size: 0.5em; font-weight: 700; margin-left: 2px; }
.stat-label { margin-top: 8px; font-size: 13.5px; color: #a8b6d4; letter-spacing: 0.06em; }

/* 简介 */
.about-grid {
  display: grid;
  gap: 36px;
  align-items: center;
}
.about-media {
  position: relative;
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-2);
}
.about-media img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.12); }
.about-media .media-badge {
  position: absolute;
  left: 18px;
  bottom: 18px;
  padding: 10px 18px;
  border-radius: 12px;
  background: rgba(8, 22, 48, 0.78);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: var(--white);
  font-size: 13px;
  letter-spacing: 0.05em;
}
.about-media .media-badge b { color: var(--gold); }

.about-body p { color: var(--muted); margin-bottom: 14px; }
.about-body p b { color: var(--navy-800); }

.chip-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.chip {
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 600;
  background: var(--gold-soft);
  color: var(--gold-deep);
  border: 1px solid rgba(216, 154, 0, 0.25);
}
.chip--navy {
  background: rgba(11, 30, 70, 0.06);
  color: var(--navy-800);
  border-color: rgba(11, 30, 70, 0.14);
}

/* 企业文化 */
.culture-grid {
  display: grid;
  gap: 18px;
  margin-top: clamp(48px, 6vw, 72px);
}
.culture-card {
  position: relative;
  padding: 30px 26px;
  border-radius: var(--radius-m);
  background: var(--bg-card);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform var(--t-med) var(--ease-apple), box-shadow var(--t-med);
}
.culture-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); }
.culture-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(var(--gold), var(--gold-deep));
  opacity: 0;
  transition: opacity var(--t-med);
}
.culture-card:hover::before { opacity: 1; }
.culture-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--navy-800);
  color: var(--gold);
  margin-bottom: 18px;
}
.culture-card h3 { font-size: 19px; color: var(--navy-900); }
.culture-card h3 small {
  display: block;
  margin-top: 3px;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-deep);
}
.culture-card p { margin-top: 12px; font-size: 14.5px; color: var(--muted); }

/* 资质荣誉 */
.honors-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.honor {
  position: relative;
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: var(--shadow-1);
  cursor: zoom-in;
  transition: transform var(--t-med) var(--ease-apple), box-shadow var(--t-med);
}
.honor:hover { transform: translateY(-5px); box-shadow: var(--shadow-2); }
.honor img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.honor-zoom {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(8, 22, 48, 0.55);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: var(--white);
  display: grid;
  place-items: center;
  pointer-events: none;
}
.honor figcaption {
  padding: 12px 14px 14px;
}
.honor figcaption b {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--navy-900);
  line-height: 1.4;
}
.honor figcaption small {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
}

/* 车间展示 */
.workshop-strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 72%;
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 12px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.workshop-strip::-webkit-scrollbar { display: none; }
.workshop-strip figure {
  scroll-snap-align: start;
  border-radius: var(--radius-m);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.workshop-strip img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }

/* ==========================================================================
   产品中心
   ========================================================================== */

/* 系列叙事（sticky） */
.story { display: grid; gap: 24px; }
.story-visual { display: none; }
.story-step { padding-block: 8px 40px; }
.story-step-img {
  border-radius: var(--radius-m);
  overflow: hidden;
  box-shadow: var(--shadow-2);
  margin-bottom: 22px;
}
.story-step-img img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.story-step h3 {
  font-size: clamp(22px, 3vw, 30px);
  color: var(--white);
  transition: color var(--t-med);
}
.story-step h3 small {
  display: block;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}
.story-step p { margin-top: 12px; color: #a8b6d4; font-size: 15px; max-width: 460px; }
.story-step .story-idx {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.2em;
  margin-bottom: 10px;
}

/* Tab */
.series-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: clamp(30px, 4vw, 48px);
}
.series-tab {
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  color: var(--navy-800);
  background: var(--white);
  border: 1px solid var(--line);
  transition: all var(--t-fast) var(--ease-apple);
}
.series-tab small {
  margin-left: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
}
.series-tab:hover { border-color: var(--gold); transform: translateY(-1px); }
.series-tab.active {
  background: var(--navy-800);
  color: var(--white);
  border-color: var(--navy-800);
  box-shadow: 0 10px 26px rgba(11, 30, 70, 0.28);
}
.series-tab.active small { color: var(--gold); }

.series-intro {
  display: grid;
  gap: 20px;
  align-items: center;
  margin-bottom: clamp(30px, 4vw, 48px);
  padding: 22px;
  border-radius: var(--radius-l);
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
}
.series-intro-img {
  border-radius: var(--radius-m);
  overflow: hidden;
}
.series-intro-img img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.series-intro h3 { font-size: 22px; color: var(--navy-900); }
.series-intro h3 small {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-top: 4px;
}
.series-intro p { margin-top: 10px; font-size: 14.5px; color: var(--muted); }
.series-points {
  margin-top: 14px;
  display: grid;
  gap: 8px;
  font-size: 13.5px;
  color: var(--navy-800);
}
.series-points li { display: flex; gap: 8px; align-items: flex-start; }
.series-points li::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  margin-top: 8px;
}

/* 产品卡片 */
.product-grid {
  display: grid;
  gap: 20px;
}
.product-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-m);
  background: var(--white);
  border: 1px solid var(--line);
  overflow: hidden;
  box-shadow: var(--shadow-1);
  transition: transform var(--t-med) var(--ease-apple), box-shadow var(--t-med), opacity var(--t-med) var(--ease-out);
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); }
.product-media {
  background: linear-gradient(160deg, #f4f6f9, #e9edf3);
  padding: 18px;
}
.product-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  mix-blend-mode: multiply;
  transition: transform var(--t-med) var(--ease-apple);
}
.product-card:hover .product-media img { transform: scale(1.05); }

.product-body { padding: 20px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.product-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.product-code {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--gold-deep);
  background: var(--gold-soft);
  padding: 4px 10px;
  border-radius: 6px;
}
.product-name { margin-top: 12px; font-size: 20px; color: var(--navy-900); }
.product-name small {
  display: block;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-top: 3px;
}
.product-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.product-tag {
  font-size: 11.5px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  color: var(--navy-800);
  background: rgba(11, 30, 70, 0.07);
}
.product-meta { margin-top: 12px; font-size: 13.5px; color: var(--muted); }
.product-meta b { color: var(--navy-800); font-weight: 600; }
.product-plating {
  flex: 1;
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--muted);
}
.product-plating b { color: var(--gold-deep); }

.param-toggle {
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--navy-800);
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  transition: all var(--t-fast);
}
.param-toggle:hover { border-color: var(--gold); color: var(--gold-deep); }
.param-toggle svg { transition: transform var(--t-fast) var(--ease-apple); }
.param-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }

.param-wrap {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.55s var(--ease-apple);
}
.param-wrap.open { grid-template-rows: 1fr; }
.param-inner { overflow: hidden; }
.param-table-scroll { overflow-x: auto; margin-top: 14px; border-radius: var(--radius-s); border: 1px solid var(--line); }

table.spec {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  min-width: 380px;
  font-variant-numeric: tabular-nums;
}
table.spec th {
  background: var(--navy-800);
  color: var(--white);
  font-weight: 600;
  padding: 9px 12px;
  text-align: left;
  white-space: nowrap;
}
table.spec td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  white-space: nowrap;
}
table.spec tr:nth-child(even) td { background: var(--bg-soft); }
table.spec tr:last-child td { border-bottom: 0; }

.products-note {
  margin-top: clamp(28px, 4vw, 44px);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 26px;
  font-size: 13.5px;
  color: var(--muted);
}
.products-note span { display: inline-flex; align-items: center; gap: 8px; }
.products-note i {
  width: 6px; height: 6px; border-radius: 50%; background: var(--gold);
}

/* ==========================================================================
   技术数据
   ========================================================================== */
.tech-grid { display: grid; gap: 28px; }
.tech-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: clamp(20px, 3vw, 32px);
  box-shadow: var(--shadow-1);
}
.tech-card h3 { font-size: 19px; color: var(--navy-900); margin-bottom: 4px; }
.tech-card h3 small {
  display: block;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-top: 4px;
}
.tech-scroll { overflow-x: auto; margin-top: 18px; border-radius: var(--radius-s); border: 1px solid var(--line); }
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  min-width: 640px;
  font-variant-numeric: tabular-nums;
}
table.data caption {
  text-align: left;
  font-size: 12.5px;
  color: var(--muted);
  padding: 10px 12px;
}
table.data th {
  background: var(--navy-800);
  color: var(--white);
  font-weight: 600;
  padding: 10px 12px;
  white-space: nowrap;
  text-align: center;
}
table.data td {
  padding: 9px 12px;
  text-align: center;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
table.data tr:nth-child(even) td { background: var(--bg-soft); }
table.data tr:last-child td { border-bottom: 0; }
table.data td:first-child { font-weight: 600; color: var(--navy-800); }

.tech-notes { display: grid; gap: 12px; margin-top: 4px; }
.tech-note {
  display: flex;
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--radius-m);
  background: var(--bg-card);
  border: 1px solid var(--line);
  font-size: 14px;
  color: var(--muted);
}
.tech-note b { color: var(--navy-900); flex: none; }

/* ==========================================================================
   联系我们
   ========================================================================== */
.contact-grid { display: grid; gap: 24px; }
.contact-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-l);
  padding: clamp(22px, 3vw, 34px);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.contact-list { display: grid; gap: 18px; }
.contact-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-item svg { flex: none; color: var(--gold); margin-top: 4px; }
.contact-item b { display: block; font-size: 13px; color: #8fa0c4; font-weight: 500; letter-spacing: 0.08em; margin-bottom: 2px; }
.contact-item span, .contact-item a { font-size: 15.5px; color: var(--white); font-weight: 600; }
.contact-item a:hover { color: var(--gold); }
.contact-item small { display: block; font-size: 13px; color: #a8b6d4; font-weight: 400; }

.qr-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}
.qr {
  min-width: 0;
  max-width: 180px;
  width: 100%;
  margin-inline: auto;
  text-align: center;
  padding: 14px;
  border-radius: var(--radius-m);
  background: var(--white);
}
.qr img { width: 100%; border-radius: 8px; }
.qr figcaption { margin-top: 10px; font-size: 13px; font-weight: 600; color: var(--navy-800); }
.qr figcaption small { display: block; font-weight: 400; color: var(--muted); font-size: 12px; }

.contact-map {
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-3);
  border: 1px solid rgba(255, 255, 255, 0.12);
  align-self: start;
}
.contact-map img { width: 100%; }

/* ==========================================================================
   页脚
   ========================================================================== */
.footer {
  background: var(--navy-950);
  color: #8fa0c4;
  padding: 44px 0 30px;
  font-size: 13.5px;
}
.footer-inner { display: grid; gap: 18px; text-align: center; }
.footer-brand { font-size: 16px; font-weight: 700; color: var(--white); }
.footer-brand small { display: block; font-size: 11px; letter-spacing: 0.14em; font-weight: 400; color: #62729a; margin-top: 4px; }
.footer-slogan { color: var(--gold); letter-spacing: 0.2em; font-size: 12px; }
.footer-line { height: 1px; background: rgba(255, 255, 255, 0.08); margin-block: 6px; }

/* ==========================================================================
   Lightbox / 返回顶部
   ========================================================================== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(5, 15, 36, 0.88);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease-apple), visibility 0s 0.4s;
}
.lightbox.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.4s var(--ease-apple);
}
.lightbox img {
  max-width: min(92vw, 900px);
  max-height: 84vh;
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-3);
  transform: scale(0.92);
  transition: transform 0.45s var(--ease-apple);
}
.lightbox.is-open img { transform: scale(1); }
.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  font-size: 20px;
  display: grid;
  place-items: center;
  transition: background var(--t-fast);
}
.lightbox-close:hover { background: rgba(255, 255, 255, 0.24); }

.to-top {
  position: fixed;
  right: 20px;
  bottom: 24px;
  z-index: 90;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--navy-800);
  color: var(--gold);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: all 0.4s var(--ease-apple);
}
.to-top.show { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--navy-600); transform: translateY(-3px); }

/* ==========================================================================
   断点
   ========================================================================== */
@media (min-width: 641px) {
  .stats { grid-template-columns: repeat(4, 1fr); }
  .honors-grid { grid-template-columns: repeat(2, 1fr); }
  .workshop-strip { grid-auto-columns: 42%; }
  .culture-grid { grid-template-columns: repeat(3, 1fr); }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .series-intro { grid-template-columns: 0.9fr 1.1fr; padding: 26px; }
}

@media (min-width: 1025px) {
  :root { --nav-h: 72px; }
  .nav-links { display: flex; }
  .nav-cta { display: inline-flex; }
  .burger, .drawer { display: none; }

  .hero-inner { grid-template-columns: 1.05fr 0.95fr; align-items: center; }
  .hero-visual img { width: min(38vw, 520px); }

  .about-grid { grid-template-columns: 1fr 1fr; gap: 56px; }
  .workshop-strip { grid-auto-columns: 31.5%; }

  /* 系列叙事 sticky（桌面端） */
  .story { grid-template-columns: 0.92fr 1.08fr; gap: 48px; align-items: start; }
  .story-visual {
    display: block;
    position: sticky;
    top: calc(var(--nav-h) + 12px);
    height: calc(100vh - var(--nav-h) - 24px);
  }
  .story-visual-frame {
    position: relative;
    height: 100%;
    border-radius: var(--radius-l);
    overflow: hidden;
    box-shadow: var(--shadow-3);
    background: var(--navy-900);
  }
  .story-visual-frame img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transform: scale(1.06);
    transition: opacity 0.8s var(--ease-apple), transform 1.2s var(--ease-apple);
  }
  .story-visual-frame img.active { opacity: 1; transform: scale(1); }
  .story-step { min-height: 78vh; display: flex; flex-direction: column; justify-content: center; padding-block: 0; }
  .story-step:last-child { min-height: 60vh; }
  .story-step-img { display: none; }
  .story-step {
    opacity: 0.28;
    filter: blur(1px);
    transition: opacity 0.7s var(--ease-apple), filter 0.7s var(--ease-apple), transform 0.7s var(--ease-apple);
    transform: translateY(10px);
  }
  .story-step.active { opacity: 1; filter: blur(0); transform: none; }

  .honors-grid { grid-template-columns: repeat(4, 1fr); }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .tech-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr 1.05fr; gap: 36px; align-items: start; }
}

/* 超大屏微调 */
@media (min-width: 1441px) {
  :root { --container: 1280px; }
}

/* 窄屏微调 */
@media (max-width: 400px) {
  .hero-actions .btn { width: 100%; justify-content: center; }
  .qr-row { flex-wrap: wrap; }
}

/* ==========================================================================
   降低动态偏好
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
  .reveal { opacity: 1; transform: none; filter: none; }
  .story-step { opacity: 1; filter: none; transform: none; }
  .story-visual-frame img:first-child { opacity: 1; transform: none; }
}


/* ==========================================================================
   v1 多页版补充样式
   ========================================================================== */

/* 子页顶部横幅 */
.page-banner {
  position: relative;
  padding: calc(var(--nav-h) + clamp(56px, 8vw, 96px)) 0 clamp(44px, 6vw, 72px);
  background:
    radial-gradient(900px 420px at 88% 120%, rgba(27, 58, 119, 0.55), transparent 60%),
    linear-gradient(150deg, var(--navy-950), var(--navy-800) 70%, var(--navy-700));
  color: var(--white);
  overflow: hidden;
}
.page-banner::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -80px;
  width: 420px;
  height: 420px;
  border: 1px solid rgba(245, 179, 1, 0.18);
  border-radius: 50%;
}
.page-banner .sec-title { color: var(--white); }
.page-banner .sec-sub { color: #a8b6d4; }
.crumb {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: #8fa0c4;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.crumb b { color: var(--gold); font-weight: 600; }

/* 子页导航始终实底 */
body.subpage .nav {
  background: rgba(8, 22, 48, 0.9);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  backdrop-filter: saturate(180%) blur(18px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
}

/* 首页入口卡片 */
.entry-grid { display: grid; gap: 20px; }
.entry-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-l);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
  transition: transform var(--t-med) var(--ease-apple), box-shadow var(--t-med);
}
.entry-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); }
.entry-card .entry-media { overflow: hidden; }
.entry-card .entry-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform 0.8s var(--ease-apple);
}
.entry-card:hover .entry-media img { transform: scale(1.05); }
.entry-card .entry-body { padding: 22px 24px 26px; }
.entry-card h3 { font-size: 20px; color: var(--navy-900); }
.entry-card h3 small {
  display: block;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-top: 4px;
}
.entry-card p { margin-top: 10px; font-size: 14px; color: var(--muted); }
.entry-more {
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--navy-800);
}
.entry-more svg { transition: transform var(--t-fast) var(--ease-apple); }
.entry-card:hover .entry-more svg { transform: translateX(5px); }

/* 首页品牌三卡 */
.brand-trio { display: grid; gap: 18px; }
.brand-trio-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 30px 24px 26px;
  text-align: center;
  box-shadow: var(--shadow-1);
  transition: transform var(--t-med) var(--ease-apple), box-shadow var(--t-med), border-color var(--t-med);
}
.brand-trio-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); border-color: rgba(245, 179, 1, 0.55); }
.brand-trio-card .brand-logo-box {
  height: 92px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
}
.brand-trio-card .brand-logo-box img { max-height: 88px; max-width: 78%; object-fit: contain; }
.brand-trio-card h3 { font-size: 18px; color: var(--navy-900); }
.brand-trio-card p { margin-top: 8px; font-size: 13.5px; color: var(--muted); }
.brand-trio-card .brand-pos {
  display: inline-block;
  margin-top: 12px;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  background: var(--gold-soft);
  color: var(--gold-deep);
}

/* 品牌建设页 */
.brand-block {
  display: grid;
  gap: 28px;
  padding: clamp(26px, 4vw, 44px) 0;
  border-bottom: 1px solid var(--line);
}
.brand-block:last-child { border-bottom: 0; }
.brand-head { display: flex; flex-direction: column; gap: 18px; }
.brand-logo-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 28px;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-1);
  min-height: 160px;
}
.brand-logo-card img { max-height: 110px; max-width: 100%; object-fit: contain; }
.brand-info h3 { font-size: clamp(22px, 2.6vw, 28px); color: var(--navy-900); }
.brand-info h3 small {
  display: block;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-top: 6px;
}
.brand-info .brand-pos {
  display: inline-block;
  margin-top: 12px;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  background: var(--navy-800);
  color: var(--gold);
}
.brand-info p { margin-top: 14px; font-size: 14.5px; color: var(--muted); }
.brand-certs { display: flex; gap: 12px; margin-top: 16px; flex-wrap: wrap; }
.brand-certs figure {
  width: 118px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  overflow: hidden;
  cursor: zoom-in;
  background: var(--white);
  box-shadow: var(--shadow-1);
}
.brand-certs img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.brand-certs figcaption { font-size: 11.5px; color: var(--muted); padding: 6px 8px; text-align: center; }

/* 视频展示位 */
.brand-video {
  position: relative;
  border-radius: var(--radius-l);
  overflow: hidden;
  background:
    radial-gradient(640px 300px at 70% 115%, rgba(27, 58, 119, 0.65), transparent 62%),
    linear-gradient(150deg, var(--navy-950), var(--navy-800));
  border: 1px solid rgba(255, 255, 255, 0.08);
  min-height: 260px;
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow: var(--shadow-2);
}
.brand-video img.video-poster {
  width: 100%;
  height: 100%;
  max-height: 420px;
  object-fit: contain;
  padding: 26px;
  filter: drop-shadow(0 18px 40px rgba(0, 0, 0, 0.45));
  transition: transform 0.8s var(--ease-apple);
}
.brand-video:hover img.video-poster { transform: scale(1.04); }
.video-play {
  position: absolute;
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--navy-900);
  display: grid;
  place-items: center;
  box-shadow: 0 12px 34px rgba(245, 179, 1, 0.45);
  transition: transform var(--t-fast) var(--ease-apple), box-shadow var(--t-fast);
}
.brand-video:hover .video-play { transform: scale(1.08); }
.video-play::after {
  content: "";
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  border: 1.5px solid rgba(245, 179, 1, 0.55);
  animation: playPulse 2.2s var(--ease-apple) infinite;
}
@keyframes playPulse {
  0% { transform: scale(0.9); opacity: 0.9; }
  100% { transform: scale(1.35); opacity: 0; }
}
.video-label {
  position: absolute;
  left: 18px;
  bottom: 16px;
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: #c9d4ec;
}
.brand-video video { width: 100%; max-height: 460px; display: block; background: #000; }
.brand-video.playing { cursor: default; }
.brand-video.playing .video-play, .brand-video.playing .video-label { display: none; }

/* 提示气泡 */
.video-toast {
  position: fixed;
  left: 50%;
  bottom: 46px;
  z-index: 300;
  transform: translate(-50%, 18px);
  padding: 12px 26px;
  border-radius: 999px;
  background: rgba(8, 22, 48, 0.92);
  color: var(--white);
  font-size: 14px;
  box-shadow: var(--shadow-2);
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s var(--ease-apple);
}
.video-toast.show { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

/* 联系页右侧媒体列 */
.contact-media-col { display: grid; gap: 20px; align-content: start; }
.contact-media-col figure {
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-3);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.contact-media-col img { width: 100%; }

/* 首页联系条 */
.contact-strip {
  border-radius: var(--radius-l);
  padding: clamp(28px, 4vw, 48px);
  background:
    radial-gradient(800px 360px at 92% 130%, rgba(27, 58, 119, 0.6), transparent 60%),
    linear-gradient(140deg, var(--navy-900), var(--navy-700));
  color: var(--white);
  display: grid;
  gap: 22px;
  align-items: center;
}
.contact-strip h3 { font-size: clamp(22px, 3vw, 30px); }
.contact-strip p { color: #a8b6d4; font-size: 14.5px; margin-top: 8px; }
.contact-strip .strip-actions { display: flex; flex-wrap: wrap; gap: 14px; }

@media (min-width: 641px) {
  .brand-trio { grid-template-columns: repeat(3, 1fr); }
  .entry-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1025px) {
  .entry-grid { grid-template-columns: repeat(2, 1fr); }
  .brand-block { grid-template-columns: 0.9fr 1.1fr; align-items: center; gap: 48px; }
  .brand-block.brand-alt .brand-head { order: 2; }
  .brand-block.brand-alt .brand-video { order: 1; }
  .contact-strip { grid-template-columns: 1.2fr auto; }
}