/* ========================================
   雄丰官网 · 首页原型样式
   版本：v2 · 白底为主
   日期：2026-04-15
   参考：Miflo、HEAVN、Top Seiko、DMG Mori
   ======================================== */

/* CSS 变量：全站配色与尺度 */
:root {
  /* 底色：白为主，暖灰作区块交替，黑作点缀 */
  --color-bg: #FFFFFF;
  --color-bg-soft: #F7F6F2;       /* 暖白灰，交替区块 */
  --color-bg-subtle: #FAF9F5;
  --color-bg-dark: #0A0A0A;       /* 页脚与暗色占位 */
  --color-bg-dark-soft: #151515;

  /* 文字 */
  --color-text: #0A0A0A;
  --color-text-strong: #000000;
  --color-text-dim: #4A4A4A;
  --color-text-faint: #8A8A8A;
  --color-text-muted: #BCBCBC;
  --color-text-on-dark: #FFFFFF;
  --color-text-on-dark-dim: rgba(255, 255, 255, 0.72);
  --color-text-on-dark-faint: rgba(255, 255, 255, 0.42);

  /* 强调色：暗金色 */
  --color-gold: #9A7A0A;
  --color-gold-bright: #B8960C;
  --color-gold-pale: rgba(154, 122, 10, 0.08);

  /* 线条 */
  --color-line: rgba(10, 10, 10, 0.09);
  --color-line-strong: rgba(10, 10, 10, 0.16);
  --color-line-on-dark: rgba(255, 255, 255, 0.14);

  /* 字体 */
  --font-zh: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-en: "Barlow", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: "Oswald", "Barlow Condensed", var(--font-zh);

  /* 尺度 */
  --nav-height: 84px;
  --nav-height-shrunk: 64px;
  --container-max: 1440px;
  --container-pad: 72px;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* 重置 */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-zh);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; border: none; background: none; color: inherit; cursor: pointer; }
img, svg { display: block; max-width: 100%; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

/* 小字上标 */
.eyebrow {
  display: block;
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 32px;
  line-height: 1;
}
.section-header.is-centered .eyebrow {
  position: relative;
  padding-bottom: 18px;
}
.section-header.is-centered .eyebrow::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 32px;
  height: 1px;
  background: var(--color-gold);
  transform: translateX(-50%);
}

/* 区块标题 */
.section-title {
  font-size: clamp(32px, 3.8vw, 56px);
  line-height: 1.15;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.section-subtitle {
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-text-dim);
  max-width: 680px;
}

.section-header { margin-bottom: 80px; }
.section-header.is-centered { text-align: center; }
.section-header.is-centered .section-subtitle { margin: 0 auto; }

/* 通用按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 18px 34px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all 0.35s var(--ease-out);
  cursor: pointer;
  border: 1px solid transparent;
}

/* 主按钮：黑底白字，工业感 */
.btn-primary {
  background: var(--color-text);
  color: var(--color-text-on-dark);
  border-color: var(--color-text);
}

.btn-primary:hover {
  background: var(--color-gold);
  border-color: var(--color-gold);
  transform: translateY(-2px);
}

/* 次按钮：透明 + 黑边 */
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-line-strong);
}

.btn-ghost:hover {
  border-color: var(--color-text);
  color: var(--color-text);
  transform: translateY(-2px);
}

/* 反色按钮：暗底场景（比如 trust cta 区如果是暗底）*/
.btn-inverse {
  background: var(--color-text-on-dark);
  color: var(--color-text);
  border-color: var(--color-text-on-dark);
}

.btn .arrow { display: inline-block; transition: transform 0.35s var(--ease-out); }
.btn:hover .arrow { transform: translateX(4px); }

.btn-zh { font-family: var(--font-zh); font-size: 15px; font-weight: 500; }
.btn-en { font-family: var(--font-en); font-size: 11px; opacity: 0.7; letter-spacing: 0.12em; }

/* ========================================
   顶部导航
   ======================================== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  z-index: 100;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: all 0.4s var(--ease-out);
}

.nav.is-scrolled {
  height: var(--nav-height-shrunk);
  background: rgba(255, 255, 255, 0.96);
  border-bottom-color: var(--color-line);
  box-shadow: 0 1px 24px rgba(0, 0, 0, 0.04);
}

.nav-inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  height: 100%;
}

.nav-logo-img {
  height: 46px;
  width: auto;
  filter: invert(1);         /* 白底上显示为黑色 logo */
  transition: height 0.4s var(--ease-out);
}

.nav.is-scrolled .nav-logo-img { height: 36px; }

.nav-logo-wordmark {
  font-family: 'Barlow Condensed', 'Oswald', sans-serif;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--color-text);
  margin-left: 10px;
  text-transform: uppercase;
  line-height: 1;
  transition: font-size 0.4s var(--ease-out);
}
.nav.is-scrolled .nav-logo-wordmark { font-size: 13px; }

/* 菜单 */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-menu a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-dim);
  transition: color 0.25s var(--ease-out);
  position: relative;
  padding: 6px 0;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease-out);
}

.nav-menu a:hover { color: var(--color-text); }
.nav-menu a:hover::after,
.nav-menu a.is-active::after { transform: scaleX(1); }
.nav-menu a.is-active { color: var(--color-text); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-shrink: 0;
}

/* 地球图标语言切换 */
.lang-switcher { position: relative; }

.lang-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: var(--color-text-dim);
  transition: all 0.25s var(--ease-out);
}

.lang-btn:hover { color: var(--color-gold); }
.lang-btn svg { width: 20px; height: 20px; }

.lang-menu {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  min-width: 168px;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-line);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.3s var(--ease-out);
}

.lang-switcher:hover .lang-menu,
.lang-switcher:focus-within .lang-menu,
.lang-switcher.is-open .lang-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-menu a {
  display: block;
  padding: 14px 22px;
  font-size: 13px;
  color: var(--color-text-dim);
  border-bottom: 1px solid var(--color-line);
  transition: all 0.2s var(--ease-out);
}

.lang-menu a:last-child { border-bottom: none; }
.lang-menu a:hover {
  color: var(--color-gold);
  background: var(--color-gold-pale);
  padding-left: 26px;
}
.lang-menu a.is-active { color: var(--color-gold); }

.nav-cta {
  padding: 11px 22px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--color-text);
  color: var(--color-text);
  letter-spacing: 0.06em;
  transition: all 0.3s var(--ease-out);
}

.nav-cta:hover {
  background: var(--color-text);
  color: var(--color-text-on-dark);
}

/* ========================================
   Hero 首屏
   ======================================== */
/* ========================================
   Hero · 一屏一信息（DESIGN.md 第 5 节红线）
   极限减法：eyebrow + 标题 + 副文 + 双 CTA + 右侧微动画
   数据条已抽离到独立 Stats section（避免重叠）
   Slogan "你的需要我的方向" 降权到 hero 底部签名
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: calc(var(--nav-height) + 40px);
  padding-bottom: 80px;
  background: var(--color-bg);
  overflow: hidden;
}


.hero-inner {
  position: relative;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 120px;
  align-items: center;
  z-index: 2;
  flex: 1;
}

.hero-text { min-width: 0; }

/* Eyebrow：金色细线 + 小字上标 */
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 48px;
}

.hero-eyebrow-line {
  display: block;
  width: 64px;
  height: 1px;
  background: var(--color-gold);
  transform-origin: left center;
  animation: line-draw 1.1s var(--ease-out) 0.3s both;
}

@keyframes line-draw {
  0%   { transform: scaleX(0); }
  100% { transform: scaleX(1); }
}

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

/* 主标题：中文大字 + 英文副 */
.hero-title {
  margin-bottom: 32px;
  color: var(--color-text-strong);
  letter-spacing: -0.01em;
}

.hero-title .line {
  display: block;
  font-size: clamp(44px, 5.4vw, 72px);
  font-weight: 400;
  line-height: 1.12;
  color: var(--color-text-strong);
}

.hero-title .line.en {
  font-family: var(--font-display);
  font-size: clamp(20px, 1.9vw, 28px);
  font-weight: 300;
  letter-spacing: 0.04em;
  color: var(--color-text-dim);
  margin-top: 18px;
  text-transform: uppercase;
}

/* 副文：一句话定位 */
.hero-subtitle {
  font-size: 17px;
  line-height: 1.72;
  font-weight: 400;
  color: var(--color-text-dim);
  margin-bottom: 56px;
  max-width: 500px;
}

/* 双 CTA */
.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* 右侧视觉：SVG 画线弹簧微动画占位（与页面同一白底 + 压缩回弹循环） */
.hero-visual {
  position: relative;
  aspect-ratio: 4 / 5.2;
  background: var(--color-bg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 55%, rgba(154, 122, 10, 0.05), transparent 70%);
}

/* 弹簧 SVG：入场线绘 + 持续压缩回弹 */
.hero-spring {
  position: relative;
  width: 72%;
  max-width: 360px;
  height: auto;
  z-index: 2;
  color: var(--color-gold);
}

/* 线圈容器：循环压缩回弹，transform-origin 居中让弹簧上下压缩 */
.hero-spring .spring-coils {
  transform-origin: 50% 50%;
  animation: spring-compress 2.4s ease-in-out infinite;
  animation-delay: 2.2s;
}

@keyframes spring-compress {
  0%   { transform: scaleY(1); }
  45%  { transform: scaleY(0.78); }
  55%  { transform: scaleY(0.78); }
  100% { transform: scaleY(1); }
}

.hero-spring .spring-coils ellipse {
  stroke-dasharray: 360;
  stroke-dashoffset: 360;
  animation: spring-draw 2.4s var(--ease-out) forwards;
  opacity: 0.92;
}

.hero-spring .spring-coils ellipse:nth-child(1) { animation-delay: 0.8s; }
.hero-spring .spring-coils ellipse:nth-child(2) { animation-delay: 0.95s; }
.hero-spring .spring-coils ellipse:nth-child(3) { animation-delay: 1.1s; }
.hero-spring .spring-coils ellipse:nth-child(4) { animation-delay: 1.25s; }
.hero-spring .spring-coils ellipse:nth-child(5) { animation-delay: 1.4s; }
.hero-spring .spring-coils ellipse:nth-child(6) { animation-delay: 1.55s; }
.hero-spring .spring-coils ellipse:nth-child(7) { animation-delay: 1.7s; }
.hero-spring .spring-coils ellipse:nth-child(8) { animation-delay: 1.85s; }
.hero-spring .spring-coils ellipse:nth-child(9) { animation-delay: 2.0s; }

/* 两侧标尺线（作弹簧压缩的参考） */
.hero-spring .spring-rule {
  stroke: rgba(154, 122, 10, 0.25);
  stroke-dasharray: 440;
  stroke-dashoffset: 440;
  animation: spring-draw 1.6s var(--ease-out) 0.4s forwards;
}

@keyframes spring-draw {
  to { stroke-dashoffset: 0; }
}

/* 底部标签：白底下用暗金 */
.hero-visual-label {
  position: absolute;
  bottom: 28px;
  left: 28px;
  right: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: rgba(10, 10, 10, 0.45);
  z-index: 3;
}

/* 触发 reduced-motion 时禁用压缩循环 */
@media (prefers-reduced-motion: reduce) {
  .hero-spring .spring-coils {
    animation: none;
  }
}

/* Hero 底部：slogan 小签名，不抢主视觉 */
.hero-signature {
  position: relative;
  z-index: 2;
  margin-top: 72px;
  padding: 0 var(--container-pad);
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  font-weight: 400;
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
}

.hero-signature .sep { color: var(--color-line-strong); }
.hero-signature .en {
  font-family: var(--font-en);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 11px;
}

/* ========================================
   氛围过渡带 · Ambience Band
   全宽图片带，承接区块之间的视觉节奏
   做了灰度降饱和 + 暗化处理，保持站点克制气质
   ======================================== */
.ambience-band {
  position: relative;
  width: 100%;
  height: clamp(240px, 30vw, 380px);
  overflow: hidden;
  background: var(--color-bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ambience-band-image {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: grayscale(0.8) contrast(1.08) brightness(0.55);
  opacity: 0.9;
  transform: scale(1.04);
  transition: transform 1.2s var(--ease-out);
}

.ambience-band:hover .ambience-band-image {
  transform: scale(1);
}

/* 叠加暗金色调统一 + 上下渐黑增加质感 */
.ambience-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 50%, rgba(154, 122, 10, 0.08), transparent 70%),
    linear-gradient(180deg, rgba(10, 10, 10, 0.35) 0%, rgba(10, 10, 10, 0.1) 50%, rgba(10, 10, 10, 0.55) 100%);
  z-index: 1;
}

/* 细暗金上下边线，做分隔 */
.ambience-band::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(154, 122, 10, 0.5), transparent);
  z-index: 2;
}

.ambience-band-caption {
  position: relative;
  z-index: 3;
  text-align: center;
  color: rgba(255, 255, 255, 0.95);
  padding: 0 24px;
}

.ambience-band-en {
  display: block;
  font-family: var(--font-en);
  font-size: clamp(11px, 1vw, 13px);
  font-weight: 400;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--color-gold-bright);
  margin-bottom: 14px;
}

.ambience-band-zh {
  display: block;
  font-family: var(--font-zh);
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 300;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.92);
}

/* 移动端：降低高度，保持阅读节奏 */
@media (max-width: 768px) {
  .ambience-band {
    height: 200px;
  }
  .ambience-band-zh {
    font-size: 18px;
  }
}

/* ========================================
   Heritage Band · 非对称网格历史章节分隔
   取代旧的全屏背景图方案
   左侧大图 58% / 右侧磨砂玻璃浮窗 42%
   ======================================== */
.heritage-band {
  display: grid;
  grid-template-columns: 1fr 0.72fr;
  min-height: clamp(260px, 28vw, 360px);
  overflow: hidden;
  background: var(--color-bg-dark);
  border-top: 1px solid var(--color-line-on-dark);
  border-bottom: 1px solid var(--color-line-on-dark);
}

.heritage-band__image-main {
  margin: 0;
  overflow: hidden;
  position: relative;
}

.heritage-band__image-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  display: block;
  transition: transform 1.4s var(--ease-out);
}

.heritage-band__image-main:hover img {
  transform: scale(1.03);
}

/* 右侧内容浮窗：磨砂玻璃质感 */
.heritage-band__content {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(40px, 5vw, 72px) clamp(32px, 4vw, 60px);
  background: rgba(10, 10, 10, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-left: 1px solid rgba(255, 255, 255, 0.06);
}

/* 左侧金色线装饰 */
.heritage-band__content::before {
  content: "";
  position: absolute;
  top: 20%;
  bottom: 20%;
  left: 0;
  width: 2px;
  background: linear-gradient(180deg, transparent, var(--color-gold), transparent);
}

.heritage-band__eyebrow {
  font-family: var(--font-en);
  font-size: clamp(10px, 0.85vw, 12px);
  font-weight: 400;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  color: var(--color-gold-bright);
  margin-bottom: 20px;
}

.heritage-band__title {
  font-family: var(--font-zh);
  font-size: clamp(22px, 2.4vw, 32px);
  font-weight: 300;
  line-height: 1.5;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.96);
  margin: 0 0 20px;
}

.heritage-band__body {
  font-family: var(--font-zh);
  font-size: clamp(13px, 1vw, 15px);
  font-weight: 300;
  line-height: 1.8;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.58);
  margin: 0 0 36px;
}

.heritage-band__stat-row {
  display: flex;
  gap: 36px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.heritage-band__stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.heritage-band__stat-num {
  font-family: var(--font-en);
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-gold-bright);
  line-height: 1;
}

.heritage-band__stat-plus {
  font-size: 0.6em;
  vertical-align: super;
  margin-left: 2px;
}

.heritage-band__stat-label {
  font-family: var(--font-zh);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.45);
  text-transform: uppercase;
}

/* fade-up 入场动画接入 */
.heritage-band .fade-up {
  opacity: 0;
  transform: translateY(28px);
}

.heritage-band .fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

/* 移动端：单列堆叠，图片在上 */
@media (max-width: 768px) {
  .heritage-band {
    grid-template-columns: 1fr;
    min-height: unset;
  }

  .heritage-band__image-main {
    height: 180px;
  }

  .heritage-band__content {
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 40px 24px;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(10, 10, 10, 0.92);
  }

  .heritage-band__content::before {
    display: none;
  }

  .heritage-band__stat-row {
    gap: 24px;
  }
}

/* ========================================
   数据条 · 独立一屏（从 hero 抽出，彻底分离）
   ======================================== */
.stats-section {
  padding: 140px 0 160px;
  background: var(--color-bg-soft);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.stats-header {
  text-align: center;
  margin-bottom: 96px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 64px;
  align-items: start;
}

/* 每个数字块：左对齐，顶部一条暗金细线 */
.stat-block {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-top: 40px;
  border-top: 1px solid var(--color-line);
  position: relative;
}

.stat-block::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 40px;
  height: 1px;
  background: var(--color-gold);
}

.stat-number {
  font-family: var(--font-display);
  font-size: clamp(56px, 6vw, 88px);
  font-weight: 300;
  line-height: 1;
  color: var(--color-text-strong);
  letter-spacing: -0.02em;
}

.stat-number .plus {
  font-size: 0.5em;
  margin-left: 4px;
  color: var(--color-gold);
  font-weight: 400;
  vertical-align: super;
}

.stat-label-zh {
  font-size: 15px;
  color: var(--color-text);
  font-weight: 500;
  margin-top: 4px;
}

.stat-label-en {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

/* ========================================
   通用区块
   ======================================== */
.section {
  padding: 160px 0;
  position: relative;
}

.section-soft { background: var(--color-bg-soft); }
.section-dark { background: var(--color-bg-dark); color: var(--color-text-on-dark); }

/* ========================================
   产品中心九宫格
   ======================================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
}

.product-card {
  padding: 56px 44px 60px;
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-bg);
  position: relative;
  transition: background 0.4s var(--ease-out);
  cursor: pointer;
  overflow: hidden;
}

.product-card::before {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s var(--ease-out);
}

.product-card:hover { background: var(--color-bg-subtle); }
.product-card:hover::before { transform: scaleX(1); }

.product-card-visual {
  height: 260px;
  margin-bottom: 36px;
  background: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
  transition: box-shadow 0.5s var(--ease-out);
}

.product-card-visual img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.9);
  transition: transform 0.6s var(--ease-out), filter 0.6s var(--ease-out);
}

.product-card:hover .product-card-visual {
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06), 0 16px 36px rgba(0, 0, 0, 0.1);
}

.product-card:hover .product-card-visual img {
  transform: scale(1.05);
  filter: saturate(1);
}

/* 兼容旧 SVG 占位（其他页面仍使用时） */
.product-card-visual svg {
  position: relative;
  z-index: 1;
  width: 56px;
  height: 56px;
  stroke: rgba(0, 0, 0, 0.4);
  fill: none;
  stroke-width: 1.2;
  transition: all 0.5s var(--ease-out);
}

.product-card:hover .product-card-visual svg {
  stroke: var(--color-gold);
  transform: scale(1.08);
}

.product-card-index {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--color-gold);
  margin-bottom: 14px;
  font-weight: 600;
}

.product-card-name-zh {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.product-card-name-en {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 20px;
}

.product-card-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-dim);
}

.section-footer {
  margin-top: 80px;
  display: flex;
  justify-content: center;
}

/* ========================================
   全球布局
   ======================================== */
.locations {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}

.location-card {
  padding: 60px 48px 64px;
  background: var(--color-bg);
  transition: background 0.4s var(--ease-out);
  position: relative;
}

.section-soft .location-card { background: var(--color-bg-soft); }
.location-card:hover { background: var(--color-bg-subtle); }
.section-soft .location-card:hover { background: var(--color-bg); }

.location-card-index {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--color-gold);
  margin-bottom: 32px;
  font-weight: 600;
}

.location-card-name-zh {
  font-size: 30px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.location-card-name-en {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 36px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-line);
}

.location-card-role {
  font-size: 14px;
  color: var(--color-gold);
  margin-bottom: 22px;
  letter-spacing: 0.04em;
  font-weight: 500;
}

.location-card-address {
  font-size: 14px;
  line-height: 1.85;
  color: var(--color-text-dim);
  margin-bottom: 32px;
}

.location-card-desc {
  font-size: 14px;
  line-height: 1.85;
  color: var(--color-text-dim);
  padding-top: 28px;
  border-top: 1px solid var(--color-line);
}

/* 动态地图容器 */


/* ========================================
   核心能力 2x2
   ======================================== */
.capabilities {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin-top: 64px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}

.capability-card {
  padding: 72px 60px;
  background: var(--color-bg);
  transition: background 0.4s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.capability-card:hover { background: var(--color-bg-subtle); }

.capability-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 2px; height: 0;
  background: var(--color-gold);
  transition: height 0.5s var(--ease-out);
}

.capability-card:hover::before { height: 100%; }

.capability-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 40px;
  color: var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
}

.capability-icon svg {
  width: 100%; height: 100%;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.4;
}

.capability-label-en {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 14px;
  font-weight: 600;
}

.capability-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}

.capability-desc {
  font-size: 15px;
  line-height: 1.88;
  color: var(--color-text-dim);
  max-width: 500px;
}

/* ========================================
   品质与信任
   ======================================== */
.cert-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 188px;
  height: 188px;
  margin: 0 auto 100px;
  border: 1.5px solid var(--color-gold);
  border-radius: 50%;
  position: relative;
  background: var(--color-bg);
}

.cert-badge::before {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px solid rgba(154, 122, 10, 0.28);
  border-radius: 50%;
}

.cert-badge-title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 500;
  color: var(--color-gold);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.cert-badge-subtitle {
  font-family: var(--font-en);
  font-size: 9px;
  letter-spacing: 0.22em;
  color: var(--color-text-faint);
  text-transform: uppercase;
  text-align: center;
  max-width: 120px;
  line-height: 1.4;
}

.industries {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
  margin-bottom: 120px;
  background-color: var(--color-bg);
}

.industry {
  padding: 48px 20px;
  background: var(--color-bg);
  text-align: center;
  transition: background 0.4s var(--ease-out);
}

.section-soft .industry { background: var(--color-bg-soft); }
.industry:hover { background: var(--color-bg-subtle); }
.section-soft .industry:hover { background: var(--color-bg); }

.industry svg {
  width: 40px;
  height: 40px;
  margin: 0 auto 22px;
  stroke: var(--color-text-faint);
  fill: none;
  stroke-width: 1.3;
  transition: stroke 0.4s var(--ease-out);
}

.industry:hover svg { stroke: var(--color-gold); }

.industry-name-zh {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 4px;
}

.industry-name-en {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

/* ========================================
   设备与产能
   ======================================== */

/* 区块 hero 图（equipment 车间全景 / about-archive 历史拼贴 共用） */
.equipment-hero,
.about-archive {
  position: relative;
  margin: 80px 0 0;
  overflow: hidden;
  background: var(--color-bg-dark);
}

.equipment-hero img,
.about-archive img {
  display: block;
  width: 100%;
  height: clamp(320px, 42vw, 540px);
  object-fit: cover;
  transition: transform 1.2s var(--ease-out);
}

.equipment-hero:hover img,
.about-archive:hover img {
  transform: scale(1.03);
}

.equipment-hero::after,
.about-archive::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.1) 0%,
    rgba(0, 0, 0, 0) 35%,
    rgba(0, 0, 0, 0.55) 100%
  );
  pointer-events: none;
}

.equipment-hero-caption,
.about-archive-caption {
  position: absolute;
  left: 48px;
  bottom: 32px;
  color: #fff;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.equipment-hero-en,
.about-archive-en {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--color-gold);
  font-weight: 600;
}

.equipment-hero-zh,
.about-archive-zh {
  font-size: 20px;
  letter-spacing: 0.08em;
  font-weight: 500;
}

@media (max-width: 768px) {
  .equipment-hero-caption,
  .about-archive-caption { left: 24px; bottom: 20px; }
  .equipment-hero-zh,
  .about-archive-zh { font-size: 16px; }
}

/* ========================================
   工厂影像轮播 · CSS 无缝 marquee
   匀速向左滚动，hover 暂停
   ======================================== */
.about-carousel {
  position: relative;
  height: 340px;
  overflow: hidden;
  margin-top: 48px;
  border: 1px solid var(--color-line);
}

.about-carousel:hover .about-carousel__track {
  animation-play-state: paused;
}

.about-carousel__track {
  display: flex;
  gap: 8px;
  height: 100%;
  width: max-content;
  animation: about-scroll 26s linear infinite;
}

.about-carousel__track img {
  height: 100%;
  width: auto;
  display: block;
  flex-shrink: 0;
  object-fit: cover;
  -webkit-user-drag: none;
  user-select: none;
}

@keyframes about-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.about-carousel__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 40px 40px 22px;
  background: linear-gradient(to top, rgba(10,10,10,0.75), transparent);
  z-index: 2;
  pointer-events: none;
}

.about-carousel__en {
  display: block;
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-gold-bright);
  margin-bottom: 6px;
}

.about-carousel__zh {
  display: block;
  font-family: var(--font-zh);
  font-size: 15px;
  font-weight: 300;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.9);
}

@media (max-width: 768px) {
  .about-carousel {
    height: 220px;
    margin-left: calc(-1 * var(--container-pad) / 2);
    margin-right: calc(-1 * var(--container-pad) / 2);
  }
  .about-carousel__caption { padding: 24px 24px 16px; }
}

.equipment-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-top: 64px;
}

.equipment-card {
  border-top: 1px solid var(--color-line);
  padding-top: 36px;
}

.equipment-number {
  font-family: var(--font-en);
  font-size: 56px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
  margin-bottom: 12px;
}
.equipment-number .plus {
  font-size: 28px;
  font-weight: 400;
  color: var(--color-gold);
  margin-left: 2px;
}

.equipment-label-zh {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}
.equipment-label-en {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 16px;
}
.equipment-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-sub);
}

@media (max-width: 1024px) {
  .equipment-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}
@media (max-width: 600px) {
  .equipment-grid { grid-template-columns: 1fr; }
  .equipment-number { font-size: 42px; }
}

/* ========================================
   工艺制程
   ======================================== */
.process-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-top: 80px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.process-card {
  padding: 48px 40px;
  border: 1px solid var(--color-line);
  transition: border-color 0.4s var(--ease-out);
}
.process-card:hover {
  border-color: var(--color-gold);
}

.process-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 28px;
  color: var(--color-gold);
}
.process-icon svg {
  width: 100%;
  height: 100%;
}

.process-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-text);
}

.process-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-sub);
}

@media (max-width: 768px) {
  .process-grid { grid-template-columns: 1fr; gap: 32px; }
  .process-card { padding: 36px 28px; }
}

/* ========================================
   Contact CTA · 独立一屏，最后一次请求行动
   ======================================== */
.contact-cta {
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  padding: 200px 0 220px;
  text-align: center;
}

.contact-cta .eyebrow { color: var(--color-gold-bright); }

.contact-cta-inner {
  max-width: 720px;
  margin: 0 auto;
}

.contact-cta-title {
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-text-on-dark);
  letter-spacing: -0.005em;
  margin-bottom: 28px;
}

.contact-cta-desc {
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text-on-dark-dim);
  max-width: 560px;
  margin: 0 auto 56px;
}

.contact-cta .btn-primary {
  background: var(--color-text-on-dark);
  color: var(--color-text-strong);
  border-color: var(--color-text-on-dark);
}

.contact-cta .btn-primary:hover {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-text-on-dark);
}

/* 加大按钮：用于独立 CTA 屏 */
.btn-lg {
  padding: 22px 44px;
  font-size: 15px;
}

.btn-lg .btn-zh { font-size: 16px; }

/* Contact CTA 操作区 */
.contact-cta-actions {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.contact-cta .btn-ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.35);
  color: var(--color-text-on-dark);
}
.contact-cta .btn-ghost:hover {
  border-color: var(--color-gold-bright);
  color: var(--color-gold-bright);
}

/* 在线询盘表单 */
.inquiry-form {
  margin-top: 56px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
}

.inquiry-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-field label {
  display: block;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.6);
  margin-bottom: 8px;
  font-weight: 500;
}
.form-field label .required { color: var(--color-gold-bright); }

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 4px;
  background: rgba(255,255,255,0.06);
  color: var(--color-text-on-dark);
  font-size: 15px;
  font-family: inherit;
  transition: border-color 0.3s;
}
.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-gold-bright);
}
.form-field input::placeholder,
.form-field textarea::placeholder {
  color: rgba(255,255,255,0.3);
}

.form-field-full { margin-bottom: 28px; }

.inquiry-form .btn-primary {
  display: inline-flex;
  margin: 0 auto;
}

@media (max-width: 600px) {
  .inquiry-form-grid { grid-template-columns: 1fr; }
}

/* stat-block hover 光标 */
.stat-block { cursor: default; }
.stat-block:hover { opacity: 0.85; }

/* ========================================
   About Us 页面
   ======================================== */

/* About Hero */
.about-hero {
  padding: 200px 0 120px;
  background: var(--color-bg);
}
.about-hero-inner {
  max-width: 800px;
}
.about-hero-title {
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text);
  margin-top: 20px;
  margin-bottom: 28px;
}
.about-hero-subtitle {
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text-sub);
  max-width: 600px;
}

/* About Intro（双列） */
.about-intro {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-intro-text p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text-sub);
  margin-bottom: 20px;
}
.about-intro-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.about-stat {
  border-top: 1px solid var(--color-line);
  padding-top: 20px;
}
.about-stat-number {
  font-family: var(--font-en);
  font-size: 42px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
  margin-bottom: 8px;
}
.about-stat-number .plus {
  font-size: 22px;
  color: var(--color-gold);
}
.about-stat-label {
  font-size: 13px;
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
}

/* Timeline（垂直时间轴） */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 80px auto 0;
  padding-left: 80px;
}
.timeline-line {
  position: absolute;
  left: 35px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--color-line);
}
.timeline-item {
  position: relative;
  padding-bottom: 72px;
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-year {
  position: absolute;
  left: -80px;
  top: 0;
  font-family: var(--font-en);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-gold);
  width: 60px;
  text-align: right;
}
.timeline-year::after {
  content: '';
  position: absolute;
  right: -27px;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--color-gold);
}
.timeline-item-now .timeline-year::after {
  background: var(--color-text);
  box-shadow: 0 0 0 3px var(--color-bg-soft), 0 0 0 4px var(--color-text);
}

.timeline-content {
  padding-left: 24px;
}
.timeline-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}
.timeline-desc {
  font-size: 14px;
  line-height: 1.85;
  color: var(--color-text-sub);
  margin-bottom: 16px;
}
.timeline-tag {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
  border: 1px solid var(--color-gold);
  padding: 4px 12px;
  border-radius: 2px;
}

/* Values（三列） */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  margin-top: 72px;
}
.value-card {
  border-top: 1px solid var(--color-line);
  padding-top: 32px;
}
.value-number {
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--color-gold);
  margin-bottom: 16px;
}
.value-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}
.value-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-sub);
}

/* About 响应式 */
@media (max-width: 1024px) {
  .about-intro { grid-template-columns: 1fr; gap: 48px; }
}
@media (max-width: 768px) {
  .about-hero { padding: 140px 0 80px; }
  .values-grid { grid-template-columns: 1fr; gap: 32px; }
  .timeline { padding-left: 60px; }
  .timeline-year { left: -60px; width: 48px; font-size: 13px; }
}

/* ========================================
   产品聚合页
   ======================================== */
.products-hero {
  padding: 200px 0 100px;
  background: var(--color-bg);
}
.products-hero-title {
  font-size: clamp(36px, 4.5vw, 56px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text);
  margin-top: 20px;
  margin-bottom: 20px;
}
.products-hero-subtitle {
  font-size: 16px;
  color: var(--color-text-sub);
  max-width: 560px;
}

/* 双列布局 */
.catalog-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 60px;
  align-items: start;
}

/* 筛选栏 */
.catalog-filters {
  position: sticky;
  top: 100px;
}
.filter-group {
  margin-bottom: 36px;
}
.filter-title {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-line);
}
.filter-btn {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 8px 0;
  font-size: 14px;
  color: var(--color-text-sub);
  cursor: pointer;
  font-family: inherit;
  transition: color 0.3s;
}
.filter-btn:hover { color: var(--color-text); }
.filter-btn.is-active {
  color: var(--color-gold);
  font-weight: 600;
}

.filter-check {
  display: block;
  padding: 6px 0;
  font-size: 13px;
  color: var(--color-text-sub);
  cursor: pointer;
}
.filter-check input {
  margin-right: 8px;
  accent-color: var(--color-gold);
}

/* 产品卡片阵列 */
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.product-card {
  border: 1px solid var(--color-line);
  transition: border-color 0.4s var(--ease-out), transform 0.4s var(--ease-out);
}
.product-card:hover {
  border-color: var(--color-gold);
  transform: translateY(-4px);
}

.product-card-img {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-bg-soft);
}
.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}
.product-card:hover .product-card-img img {
  transform: scale(1.05);
}

.product-card-info {
  padding: 24px;
}
.product-card-tag {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--color-gold);
}
.product-card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin: 8px 0 4px;
}
.product-card-en {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 12px;
}
.product-card-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-text-sub);
  margin-bottom: 16px;
}
.product-card-detail {
  background: none;
  border: none;
  padding: 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-gold);
  cursor: pointer;
  font-family: inherit;
  transition: color 0.3s;
}
.product-card-detail:hover { color: var(--color-text); }

/* 规格弹窗 */
.spec-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}
.spec-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
}
.spec-modal-content {
  position: relative;
  background: var(--color-bg);
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  padding: 48px 40px;
  z-index: 1;
}
.spec-modal-close {
  position: absolute;
  top: 16px;
  right: 20px;
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--color-text-faint);
}
.spec-modal-close:hover { color: var(--color-text); }

.spec-modal-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 28px;
  color: var(--color-text);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 32px;
}
.spec-table th,
.spec-table td {
  text-align: left;
  padding: 12px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--color-line);
}
.spec-table th {
  font-weight: 600;
  color: var(--color-text-faint);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.spec-table td:first-child {
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
}
.spec-table td:last-child {
  color: var(--color-text-sub);
}

.spec-modal-cta {
  text-align: center;
}

/* 产品页响应式 */
@media (max-width: 1024px) {
  .catalog-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .catalog-layout { grid-template-columns: 1fr; gap: 32px; }
  .catalog-filters { position: static; display: flex; flex-wrap: wrap; gap: 16px; }
  .filter-group { margin-bottom: 16px; flex: 1; min-width: 180px; }
  .catalog-grid { grid-template-columns: 1fr; }
  .products-hero { padding: 140px 0 60px; }
}

/* ========================================
   页脚（唯一的暗色区块）
   ======================================== */
.footer {
  background: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  padding: 120px 0 40px;
  position: relative;
}

.footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-gold), transparent);
  opacity: 0.4;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1.4fr;
  gap: 80px;
  margin-bottom: 88px;
}

.footer-brand-logo {
  margin-bottom: 40px;
}

.footer-brand-logo img {
  height: 64px;
  width: auto;
  /* 页脚暗底，logo 原生白色线条，不需要 invert */
}

.footer-slogan {
  font-size: 14px;
  color: var(--color-text-on-dark-dim);
  line-height: 1.85;
  margin-bottom: 8px;
}

.footer-slogan-en {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-on-dark-faint);
}

.footer-col-title {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 30px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-line-on-dark);
  font-weight: 600;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 13px;
  color: var(--color-text-on-dark-dim);
  transition: all 0.25s var(--ease-out);
  display: inline-block;
}

.footer-links a:hover {
  color: var(--color-gold-bright);
  transform: translateX(4px);
}

.footer-contact-block { margin-bottom: 28px; }

.footer-contact-label {
  font-size: 11px;
  color: var(--color-text-on-dark-faint);
  margin-bottom: 6px;
  font-family: var(--font-en);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.footer-contact-value {
  font-size: 13px;
  color: var(--color-text-on-dark-dim);
  line-height: 1.75;
}

.footer-contact-value a {
  color: var(--color-text-on-dark-dim);
  transition: color 0.25s var(--ease-out);
}

.footer-contact-value a:hover { color: var(--color-gold-bright); }

.footer-bottom {
  padding-top: 36px;
  border-top: 1px solid var(--color-line-on-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--color-text-on-dark-faint);
}

.footer-bottom .en {
  font-family: var(--font-en);
  letter-spacing: 0.12em;
}

/* ========================================
   滚动渐入动画
   ======================================== */
.fade-up {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}

.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up.delay-1 { transition-delay: 0.08s; }
.fade-up.delay-2 { transition-delay: 0.16s; }
.fade-up.delay-3 { transition-delay: 0.24s; }
.fade-up.delay-4 { transition-delay: 0.32s; }

/* ========================================
   Reveal 大标题进场（Apple / Tesla 风格）
   每个字：淡入 + 轻微上移（8px）+ 微模糊→清晰
   无弹性、无扫光、无颜色，只有干净的呼吸感
   ======================================== */
.reveal-text {
  position: relative;
  display: inline-block;
  max-width: 100%;
}

.reveal-text .reveal-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(10px);
  filter: blur(4px);
  transition:
    opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.9s cubic-bezier(0.22, 1, 0.36, 1),
    filter 0.9s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform, opacity, filter;
}

.reveal-text .reveal-char.is-space {
  width: 0.3em;
}

.reveal-text.is-visible .reveal-char {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* 降低动态需求：直接显示最终态 */
@media (prefers-reduced-motion: reduce) {
  .reveal-text .reveal-char {
    opacity: 1;
    transform: none;
    filter: none;
    transition: none;
  }
}

/* ========================================
   鼠标跟随柔光（全局）
   双模式：白底用 multiply 暖金光，深底用 screen 青光
   光斑在 body 上固定，跟随光标；通过 data-theme 切换
   ======================================== */
.cursor-glow {
  position: fixed;
  pointer-events: none;
  top: 0;
  left: 0;
  width: 220px;
  height: 220px;
  margin-left: -110px;
  margin-top: -110px;
  border-radius: 50%;
  opacity: 0;
  transform: translate3d(var(--mx, 50vw), var(--my, 50vh), 0);
  transition: opacity 0.4s ease, background 0.6s ease, mix-blend-mode 0.2s;
  z-index: 1;
  filter: blur(10px);
  /* 默认（浅底）：柔和暖金 + multiply，仅作氛围点缀 */
  background: radial-gradient(circle at center,
    rgba(154, 122, 10, 0.12) 0%,
    rgba(190, 140, 20, 0.06) 45%,
    transparent 72%);
  mix-blend-mode: multiply;
}
.cursor-glow.is-active { opacity: 1; }

/* 深色区域：冷青光 + screen，适度亮度 */
.cursor-glow.is-on-dark {
  background: radial-gradient(circle at center,
    rgba(120, 200, 230, 0.22) 0%,
    rgba(99, 102, 241, 0.10) 45%,
    transparent 72%);
  mix-blend-mode: screen;
}

@media (hover: none), (prefers-reduced-motion: reduce) {
  .cursor-glow { display: none; }
}

/* ========================================
   Hero 视差：只作用于右侧视觉，不再抖文字
   ======================================== */
.hero {
  --px: 0;
  --py: 0;
}
.hero-visual {
  transition: transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .hero-visual {
    transform: translate3d(calc(var(--px) * -10px), calc(var(--py) * -7px), 0);
  }
}

/* ========================================
   产品卡 3D tilt（hover 时按鼠标位置微倾斜）
   由 JS 更新 --rx / --ry 变量
   ======================================== */
.product-card {
  transform-style: preserve-3d;
  perspective: 1000px;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              background 0.4s ease,
              box-shadow 0.4s ease;
}
.product-card.is-tilting {
  transform: perspective(900px)
             rotateX(calc(var(--ry, 0) * 6deg))
             rotateY(calc(var(--rx, 0) * 6deg))
             translateZ(0);
  box-shadow:
    0 30px 60px -20px rgba(0, 0, 0, 0.15),
    0 0 0 1px rgba(56, 189, 248, 0.12);
}
/* 卡内视觉微抬（带 z-depth） */
.product-card.is-tilting .product-card-visual {
  transform: translateZ(20px);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
/* 卡内高光反射条 */
.product-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    circle at calc(50% + var(--rx, 0) * 50%) calc(50% + var(--ry, 0) * 50%),
    rgba(255, 255, 255, 0.35) 0%,
    transparent 40%
  );
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
  mix-blend-mode: overlay;
}
.product-card.is-tilting::after { opacity: 0.7; }

@media (hover: none), (prefers-reduced-motion: reduce) {
  .product-card.is-tilting {
    transform: none;
    box-shadow: none;
  }
  .product-card.is-tilting .product-card-visual { transform: none; }
  .product-card::after { display: none; }
}

/* ========================================
   响应式
   ======================================== */
@media (max-width: 1200px) {
  :root { --container-pad: 48px; }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 56px;
  }
  .hero-visual {
    max-width: 460px;
    aspect-ratio: 4 / 3;
  }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .locations, .capabilities { grid-template-columns: 1fr; }
  .industries { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 56px; }
  .nav-menu { gap: 24px; }
}

@media (max-width: 900px) {
  .nav-menu { display: none; }
}

/* ========================================
   复制邮箱 Toast 轻提示
   ======================================== */
.copy-toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  background: var(--color-gold, #9A7A0A);
  color: #FAF7EE;
  font-family: var(--font-en, 'Barlow'), sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  padding: 10px 22px;
  border-radius: 2px;
  z-index: 9999;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.22s ease, transform 0.22s ease;
  pointer-events: none;
}
.copy-toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (max-width: 768px) {
  .copy-toast { bottom: 20px; right: 20px; left: 20px; text-align: center; }
}

@media (max-width: 768px) {
  :root { --container-pad: 24px; }
  .hero { padding-bottom: 240px; }
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-top: 32px;
  }
  .section { padding: 100px 0; }
  .products-grid, .industries { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* ========================================
   浮动分享按钮（右下角 FAB）
   ======================================== */
.share-fab {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 900;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  font-family: var(--font-en);
}

.share-fab-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  background: #FFFFFF;
  color: var(--color-text);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--color-line-strong);
  box-shadow: 0 8px 24px rgba(10, 10, 10, 0.08);
  cursor: pointer;
  transition: background 0.35s var(--ease-out),
              color 0.35s var(--ease-out),
              border-color 0.35s var(--ease-out),
              transform 0.35s var(--ease-out),
              box-shadow 0.35s var(--ease-out);
}
.share-fab-trigger:hover {
  background: var(--color-gold);
  color: #FFFFFF;
  border-color: var(--color-gold);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(154, 122, 10, 0.28);
}
.share-fab-trigger svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.share-fab-menu {
  display: flex;
  flex-direction: column;
  gap: 8px;
  opacity: 0;
  transform: translateY(8px) scale(0.96);
  transform-origin: bottom right;
  pointer-events: none;
  transition: opacity 0.3s var(--ease-out),
              transform 0.35s var(--ease-out);
}
.share-fab.is-open .share-fab-menu {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.share-fab-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px 10px 12px;
  border-radius: 999px;
  background: #FFFFFF;
  border: 1px solid var(--color-line);
  color: var(--color-text);
  font-size: 12px;
  letter-spacing: 0.02em;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(10, 10, 10, 0.06);
  transition: border-color 0.3s var(--ease-out),
              transform 0.3s var(--ease-out),
              background 0.3s var(--ease-out),
              color 0.3s var(--ease-out);
}
.share-fab-item:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
  transform: translateX(-2px);
}
.share-fab-item svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}
.share-fab-item .share-fab-label {
  font-family: var(--font-zh);
  white-space: nowrap;
}

/* 微信弹出卡片 */
.share-wechat-card {
  position: absolute;
  right: 0;
  bottom: calc(100% + 10px);
  width: 200px;
  padding: 14px;
  background: #FFFFFF;
  border: 1px solid var(--color-line-strong);
  border-radius: 10px;
  box-shadow: 0 16px 40px rgba(10, 10, 10, 0.12);
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity 0.3s var(--ease-out),
              transform 0.35s var(--ease-out);
  text-align: center;
}
.share-wechat-card.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.share-wechat-card-qr {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  display: block;
  margin-bottom: 10px;
  border-radius: 4px;
}
.share-wechat-card-label {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 4px;
}
.share-wechat-card-value {
  font-family: var(--font-zh);
  font-size: 13px;
  color: var(--color-text-strong);
  margin-bottom: 10px;
  word-break: break-all;
}
.share-wechat-card-copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}
.share-wechat-card-copy:hover { color: var(--color-gold-bright); }

/* Toast 提示 */
.share-toast {
  position: fixed;
  top: 96px;
  left: 50%;
  transform: translate(-50%, -10px);
  padding: 10px 20px;
  background: var(--color-bg-dark);
  color: #FFFFFF;
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.06em;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  z-index: 1000;
  transition: opacity 0.3s var(--ease-out),
              transform 0.35s var(--ease-out);
}
.share-toast.is-show {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (max-width: 768px) {
  .share-fab { right: 16px; bottom: 16px; }
  .share-fab-trigger { padding: 9px 14px; font-size: 11px; }
  .share-fab-item { font-size: 11px; padding: 9px 12px; }
}


/* ========================================
   Mobile Responsive v2 · 2026-04-22
   汉堡菜单 + 关键模块手机端修复
   ======================================== */

/* 汉堡按钮：默认不显示，由 JS 注入并只在 ≤860 激活 */
.nav-toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  margin-left: 8px;
}
.nav-toggle span {
  display: block;
  position: absolute;
  left: 10px;
  width: 20px;
  height: 1.5px;
  background: var(--color-text);
  transition: all 0.35s var(--ease-out);
}
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 19.5px; }
.nav-toggle span:nth-child(3) { top: 25px; }
body.nav-open .nav-toggle span:nth-child(1) {
  top: 19.5px; transform: rotate(45deg);
}
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) {
  top: 19.5px; transform: rotate(-45deg);
}

/* 移动面板：默认隐藏 */
.mobile-nav-panel { display: none; }

@media (max-width: 860px) {
  /* 隐藏 header 原有菜单 */
  .nav-menu,
  .nav-right {
    display: none !important;
  }
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .nav-logo-wordmark { font-size: 13px; }
  .nav-logo-img { height: 36px; }

  /* 移动全屏面板 */
  .mobile-nav-panel {
    display: block;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    z-index: 999;
    padding: 88px 28px 40px;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.35s var(--ease-out),
                visibility 0.35s,
                transform 0.35s var(--ease-out);
  }
  body.nav-open .mobile-nav-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  body.nav-open { overflow: hidden; }

  .mobile-nav-list {
    list-style: none;
    padding: 0;
    margin: 0 0 40px;
    border-top: 1px solid var(--color-line);
  }
  .mobile-nav-list li {
    border-bottom: 1px solid var(--color-line);
  }
  .mobile-nav-list a {
    display: block;
    padding: 22px 4px;
    font-size: 16px;
    color: var(--color-text);
    letter-spacing: 0.04em;
    text-decoration: none;
  }
  .mobile-nav-list a.is-active { color: var(--color-gold); }

  .mobile-nav-lang {
    margin-bottom: 32px;
  }
  .mobile-nav-lang-label {
    font-family: var(--font-en);
    font-size: 11px;
    letter-spacing: 0.22em;
    color: var(--color-text-faint);
    text-transform: uppercase;
    margin-bottom: 14px;
  }
  .mobile-nav-lang a {
    display: inline-block;
    margin: 0 10px 10px 0;
    padding: 9px 18px;
    font-size: 13px;
    color: var(--color-text-dim);
    border: 1px solid var(--color-line);
    text-decoration: none;
    transition: all 0.2s var(--ease-out);
  }
  .mobile-nav-lang a.is-active {
    color: var(--color-text);
    border-color: var(--color-text);
  }

  .mobile-nav-cta {
    display: block !important;
    text-align: center;
    padding: 16px !important;
    font-size: 14px !important;
    width: 100%;
    border: 1px solid var(--color-text) !important;
    color: var(--color-text) !important;
    text-decoration: none;
    letter-spacing: 0.06em;
  }
}

/* Stats 手机 1 列 */
@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: 1fr !important;
    gap: 44px !important;
  }
  .stats-header { margin-bottom: 56px !important; }
  .stat-block { padding-top: 28px; }
  .stat-number { font-size: clamp(48px, 14vw, 72px) !important; }

  /* Hero 视觉在手机上：取消 aspect-ratio，给弹簧和标签各自留呼吸空间 */
  .hero-visual {
    aspect-ratio: auto;
    min-height: 340px;
    padding-bottom: 56px;
    margin-top: 24px;
  }
  .hero-spring {
    width: 56%;
    max-width: 260px;
  }
  .hero-visual-label {
    bottom: 16px;
    left: 16px;
    right: 16px;
    font-size: 9px;
    letter-spacing: 0.24em;
  }

  /* spec modal 手机适配 */
  .spec-modal-content {
    width: calc(100% - 32px) !important;
    max-width: 420px !important;
    padding: 28px 20px !important;
    max-height: 85vh;
    overflow-y: auto;
  }
  .spec-modal-title { font-size: 20px !important; }

  /* 分享按钮避开微信底部栏 */
  .share-fab { bottom: 80px !important; }

  /* 容器 padding 压缩 */
  .container {
    padding-left: 20px !important;
    padding-right: 20px !important;
  }
}