@charset "UTF-8";
/* ==========================================================================
   东莞市响声电子科技有限公司 · 官网样式
   设计基准：1440 画布 / 内容区 1200 / 左右留白 120
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计令牌
   -------------------------------------------------------------------------- */
:root {
  /* 色彩 —— 深炭黑工业底 + 单一琥珀橙信号色 */
  --ink:            #0C0F13;
  --ink-card:       #1A222A;
  --ink-line:       #28323C;
  --amber:          #F2601A;
  --amber-deep:     #C24E12;
  --amber-soft:     #FFF0E7;
  --white:          #FFFFFF;
  --gray-bg:        #F4F5F6;
  --gray-line:      #E4E6E9;
  --gray-grid:      #FAFAFB;
  --text:           #0C0F13;
  --text-2:         #5B6470;
  --text-on-dark:   #FFFFFF;
  --text-on-dark-2: #98A2AF;

  /* 字体 —— 系统栈优先，不引外链字体（国内访问 Google Fonts 不通会白屏） */
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
  --font-en:   Inter, "Helvetica Neue", Arial, system-ui, sans-serif;
  --font-mono: "Roboto Mono", ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;

  /* 尺度 */
  --gutter: 120px;
  --content: 1200px;
  --sec-y: 96px;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  --header-h: 84px;
}

/* --------------------------------------------------------------------------
   2. 基础重置
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, p, figure, ul, ol, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
table { border-collapse: collapse; width: 100%; }

:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }

/* --------------------------------------------------------------------------
   3. 布局工具
   -------------------------------------------------------------------------- */
.wrap { width: min(var(--content), calc(100% - 40px)); margin-inline: auto; }

.section { padding-block: var(--sec-y); }
.section--gray { background: var(--gray-bg); }
.section--ink { background: var(--ink); color: var(--text-on-dark); }
.section--tight { padding-block: 72px; }

/* 区块头 */
.sec-head { max-width: 760px; margin-bottom: 48px; }
.sec-head--split {
  max-width: none;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
}
.sec-head--split > .sec-copy { max-width: 760px; }

.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--amber);
  margin-bottom: 14px;
}
.sec-title {
  font-size: 32px;
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -.01em;
}
.sec-title--lg { font-size: 40px; line-height: 1.3; }
.sec-desc {
  margin-top: 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-2);
}
.section--ink .sec-desc { color: var(--text-on-dark-2); }

/* 手写体副标（英文小标） */
.sub-en {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--text-2);
}
.section--ink .sub-en { color: var(--text-on-dark-2); }

/* 分组标签 + 横线 */
.group-label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.group-label__text {
  flex: none;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .02em;
}
.group-label__text em {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 11px;
  color: var(--text-2);
  margin-left: 6px;
}
.section--ink .group-label__text em { color: var(--text-on-dark-2); }
.group-label__line { flex: 1; height: 1px; background: var(--gray-line); }
.section--ink .group-label__line { background: var(--ink-line); }

/* 网格 */
.grid { display: grid; gap: 20px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* --------------------------------------------------------------------------
   4. 按钮 / 标签
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding-inline: 22px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: background-color .18s ease, border-color .18s ease, color .18s ease, transform .18s ease;
}
.btn svg { flex: none; }
.btn--primary { background: var(--amber); color: var(--white); }
.btn--primary:hover { background: #D9540F; }
.btn--ghost-dark {
  border: 1px solid rgba(255, 255, 255, .22);
  color: var(--text-on-dark);
}
.btn--ghost-dark:hover { border-color: rgba(255, 255, 255, .45); background: rgba(255, 255, 255, .05); }
.btn--ghost-light {
  border: 1px solid var(--gray-line);
  color: var(--text);
  background: var(--white);
}
.btn--ghost-light:hover { border-color: #C9CDD3; }
.btn--sm { height: 38px; padding-inline: 16px; font-size: 13px; }
.btn--block { width: 100%; }

.chip {
  display: inline-flex;
  align-items: center;
  height: 34px;
  padding-inline: 14px;
  border-radius: 999px;
  border: 1px solid var(--gray-line);
  background: var(--white);
  font-size: 13px;
  color: var(--text);
  transition: border-color .18s ease, color .18s ease, background-color .18s ease;
}
.chip:hover { border-color: var(--amber); color: var(--amber-deep); }
.chip--active { background: var(--amber); border-color: var(--amber); color: var(--white); }
.chip--active:hover { color: var(--white); }
.chip--soft { background: var(--amber-soft); border-color: transparent; color: var(--amber-deep); }
.chip--dark {
  background: rgba(255, 255, 255, .06);
  border-color: var(--ink-line);
  color: var(--text-on-dark-2);
}

/* --------------------------------------------------------------------------
   5. Header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  height: var(--header-h);
  background: var(--ink);
  border-bottom: 1px solid var(--ink-line);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { display: flex; align-items: center; gap: 12px; flex: none; }
.brand-mark { flex: none; }
.brand-text { display: flex; flex-direction: column; gap: 2px; line-height: 1.2; }
.brand-name { font-size: 17px; font-weight: 700; color: var(--text-on-dark); letter-spacing: .02em; }
.brand-en {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: .12em;
  color: var(--text-on-dark-2);
}

.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav a {
  position: relative;
  font-size: 14.5px;
  color: var(--text-on-dark-2);
  transition: color .18s ease;
  padding-block: 4px;
}
.site-nav a:hover { color: var(--text-on-dark); }
.site-nav a[aria-current="page"] { color: var(--text-on-dark); font-weight: 500; }
.site-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--amber);
  border-radius: 2px;
}

.header-actions { display: flex; align-items: center; gap: 18px; flex: none; }
.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--text-on-dark-2);
  transition: color .18s ease;
}
.header-phone:hover { color: var(--text-on-dark); }
.header-phone svg { color: var(--amber); }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink-line);
  border-radius: var(--radius-xs);
  color: var(--text-on-dark);
}

/* 移动端抽屉 */
.nav-drawer {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  z-index: 55;
  background: var(--ink);
  padding: 24px 20px 40px;
  overflow-y: auto;
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
}
.nav-drawer.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-drawer a {
  display: block;
  padding: 15px 4px;
  font-size: 16px;
  color: var(--text-on-dark);
  border-bottom: 1px solid var(--ink-line);
}
.nav-drawer a[aria-current="page"] { color: var(--amber); }
.nav-drawer .drawer-foot { margin-top: 28px; display: grid; gap: 12px; }

/* --------------------------------------------------------------------------
   6. Hero（首页）
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--text-on-dark);
  padding-block: 88px 0;
}
.hero__grid-texture,
.page-hero__grid-texture {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(120% 90% at 78% 30%, #000 0%, transparent 72%);
          mask-image: radial-gradient(120% 90% at 78% 30%, #000 0%, transparent 72%);
  pointer-events: none;
}
.hero__glow {
  position: absolute;
  width: 640px; height: 640px;
  right: -120px; top: -160px;
  background: radial-gradient(circle, rgba(242, 96, 26, .20) 0%, transparent 62%);
  pointer-events: none;
}
.hero__inner { position: relative; }

.hero__main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 540px;
  gap: 56px;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: 32px;
  padding-inline: 14px;
  border-radius: 999px;
  border: 1px solid var(--ink-line);
  background: rgba(255, 255, 255, .04);
  font-size: 12.5px;
  color: var(--text-on-dark-2);
}
.badge__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(242, 96, 26, .18);
}

.hero__title {
  margin-top: 22px;
  font-size: 56px;
  line-height: 1.18;
  font-weight: 700;
  letter-spacing: -.02em;
}
.hero__title span { display: block; }
.hero__title em {
  font-style: normal;
  color: var(--amber);
}
.hero__sub {
  margin-top: 22px;
  max-width: 560px;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--text-on-dark-2);
}
.hero__ctas { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 14px; }

.hero__visual {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--ink-line);
  background: var(--ink-card);
  aspect-ratio: 540 / 520;
}
.hero__visual img { width: 100%; height: 100%; object-fit: cover; }

/* Hero 数据条 */
.hero__stats {
  position: relative;
  margin-top: 72px;
  border-top: 1px solid var(--ink-line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat { padding: 26px 0 40px; }
.stat + .stat { border-left: 1px solid var(--ink-line); padding-left: 32px; }
.stat__value {
  font-family: var(--font-en);
  font-size: 34px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.02em;
}
.stat__label { margin-top: 8px; font-size: 13px; color: var(--text-on-dark-2); }

/* --------------------------------------------------------------------------
   7. Page Hero（子页）
   -------------------------------------------------------------------------- */
.page-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--text-on-dark);
  padding-block: 64px 64px;
}
.page-hero__inner { position: relative; }
.breadcrumb { font-size: 12.5px; color: var(--text-on-dark-2); }
.breadcrumb span { color: var(--amber); }
.page-hero__title {
  margin-top: 18px;
  font-size: 44px;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -.02em;
}
.page-hero__sub {
  margin-top: 18px;
  max-width: 820px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-on-dark-2);
}
.page-hero__nav { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 10px; }

.page-hero__stats {
  margin-top: 44px;
  padding-top: 30px;
  border-top: 1px solid var(--ink-line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.page-hero__stats--3 { grid-template-columns: repeat(3, 1fr); }

/* --------------------------------------------------------------------------
   8. 卡片
   -------------------------------------------------------------------------- */
.card {
  background: var(--white);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
}
.card--pad { padding: 28px; }
.card--ink { background: var(--ink-card); border-color: var(--ink-line); color: var(--text-on-dark); }
.card--soft { background: var(--amber-soft); border-color: transparent; }

.card__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--amber);
}
.card__title { margin-top: 10px; font-size: 19px; font-weight: 700; }
.card__desc { margin-top: 10px; font-size: 14px; line-height: 1.85; color: var(--text-2); }
.card--ink .card__desc { color: var(--text-on-dark-2); }

/* 产品块（首页） */
.prod-row {
  display: grid;
  grid-template-columns: 540px minmax(0, 1fr);
  gap: 56px;
  align-items: center;
  padding-block: 56px;
}
.prod-row + .prod-row { border-top: 1px solid var(--gray-line); }
.prod-row--flip .prod-row__media { order: 2; }
.prod-row__media {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 540 / 460;
  background: var(--gray-bg);
}
.prod-row__media img { width: 100%; height: 100%; object-fit: cover; }
.prod-row__title { margin-top: 14px; display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.prod-row__title h3 { font-size: 30px; font-weight: 700; letter-spacing: -.01em; }
.prod-row__title .en { font-family: var(--font-mono); font-size: 12px; color: var(--text-2); letter-spacing: .06em; }
.prod-row__desc { margin-top: 16px; font-size: 14.5px; line-height: 1.9; color: var(--text-2); }

.spec-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--gray-line);
  border-left: 1px solid var(--gray-line);
}
.spec-grid__item {
  padding: 14px 18px;
  border-right: 1px solid var(--gray-line);
  border-bottom: 1px solid var(--gray-line);
}
.spec-grid__label { font-size: 12px; color: var(--text-2); }
.spec-grid__value { margin-top: 4px; font-size: 14px; font-weight: 500; }

.tag-row { margin-top: 22px; display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding-inline: 12px;
  border-radius: 999px;
  background: var(--gray-bg);
  font-size: 12.5px;
  color: var(--text-2);
}

/* 客户条 */
.client-strip { margin-top: 56px; padding-top: 32px; border-top: 1px solid var(--gray-line); }
.client-row { display: flex; flex-wrap: wrap; gap: 12px; }
.client-row + .client-row { margin-top: 12px; }
.client-row--sub .client { background: transparent; color: var(--text-2); font-size: 13px; }
.client {
  display: inline-flex;
  align-items: center;
  height: 46px;
  padding-inline: 26px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--gray-line);
  background: var(--white);
  font-family: var(--font-en);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: .02em;
}

/* --------------------------------------------------------------------------
   9. 表格
   -------------------------------------------------------------------------- */
.tbl-wrap {
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
}
.tbl-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.tbl { min-width: 900px; }
.tbl th, .tbl td {
  padding: 0 20px;
  text-align: left;
  font-size: 14px;
  white-space: nowrap;
}
.tbl thead th {
  height: 46px;
  background: var(--gray-bg);
  border-bottom: 1px solid var(--gray-line);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
}
.tbl tbody td {
  height: 54px;
  border-bottom: 1px solid var(--gray-line);
  color: var(--text);
}
.tbl tbody tr:last-child td { border-bottom: 0; }
.tbl tbody tr:nth-child(even) td { background: var(--gray-grid); }
.tbl tbody tr:hover td { background: var(--amber-soft); }
.tbl .c-model { font-family: var(--font-mono); font-size: 13px; color: var(--text); }
.tbl .c-num { font-family: var(--font-en); font-weight: 500; font-variant-numeric: tabular-nums; }
.tbl__scroll-hint { display: none; }

/* --------------------------------------------------------------------------
   10. 流程 / 分级 / FAQ
   -------------------------------------------------------------------------- */
.flow-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.flow-step {
  padding: 26px 24px 28px;
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  background: var(--white);
}
.flow-step__no {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--amber);
}
.flow-step__title { margin-top: 12px; font-size: 17px; font-weight: 700; }
.flow-step__desc { margin-top: 10px; font-size: 13.5px; line-height: 1.8; color: var(--text-2); }

.level-card { padding: 30px 28px 32px; border-radius: var(--radius); border: 1px solid var(--gray-line); background: var(--white); }
.level-card--a { border-top: 3px solid var(--amber); }
.level-card--b { border-top: 3px solid #F5A623; }
.level-card--c { border-top: 3px solid var(--ink-line); }
.level-card__chip {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding-inline: 10px;
  border-radius: var(--radius-xs);
  background: var(--amber-soft);
  color: var(--amber-deep);
  font-size: 12px;
  font-weight: 500;
}
.level-card__title { margin-top: 16px; font-size: 22px; font-weight: 700; }
.level-card__desc { margin-top: 12px; font-size: 14px; line-height: 1.85; color: var(--text-2); }

.note-bar {
  margin-top: 24px;
  padding: 18px 22px;
  border-radius: var(--radius-sm);
  background: var(--gray-bg);
  border: 1px solid var(--gray-line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-2);
}

.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.faq-item { padding: 24px 26px; border: 1px solid var(--gray-line); border-radius: var(--radius); background: var(--white); }
.faq-item__q { display: flex; gap: 10px; font-size: 15.5px; font-weight: 500; }
.faq-item__q svg { flex: none; margin-top: 4px; color: var(--amber); }
.faq-item__a { margin-top: 12px; padding-left: 24px; font-size: 14px; line-height: 1.85; color: var(--text-2); }

/* --------------------------------------------------------------------------
   11. 图片卡 / 相册
   -------------------------------------------------------------------------- */
.photo-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.photo-grid--3 { grid-template-columns: repeat(3, 1fr); }
.photo-card {
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  background: var(--white);
  overflow: hidden;
  transition: border-color .2s ease, transform .2s ease;
}
.photo-card:hover { border-color: #CFD3D8; transform: translateY(-2px); }
.photo-card__media { aspect-ratio: 4 / 3; background: var(--gray-bg); overflow: hidden; }
.photo-card__media img { width: 100%; height: 100%; object-fit: cover; }
.photo-card__body { padding: 16px 18px 20px; }
.photo-card__title { font-size: 14.5px; font-weight: 500; }
.photo-card__spec { margin-top: 6px; font-size: 12.5px; color: var(--text-2); }

/* 车间图（带说明条） */
.workshop-hero {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--gray-line);
  background: var(--white);
}
.workshop-hero__media { aspect-ratio: 1200 / 520; background: var(--gray-bg); }
.workshop-hero__media img { width: 100%; height: 100%; object-fit: cover; }
.workshop-hero__bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 24px;
  font-size: 14px;
  border-top: 1px solid var(--gray-line);
}
.workshop-hero__bar svg { flex: none; color: var(--amber); }

/* QC 四步 */
.qc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.qc-card { padding: 22px 22px 24px; border: 1px solid var(--gray-line); border-radius: var(--radius); background: var(--white); }
.qc-card__title { font-size: 15px; font-weight: 700; }
.qc-card__desc { margin-top: 10px; font-size: 13.5px; line-height: 1.8; color: var(--text-2); }

/* --------------------------------------------------------------------------
   12. 资质 / 证书
   -------------------------------------------------------------------------- */
.cert-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.cert-badge {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 26px;
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  background: var(--white);
}
.cert-badge__logo { flex: none; width: 84px; height: 84px; display: grid; place-items: center; }
.cert-badge__logo img { max-width: 100%; max-height: 100%; object-fit: contain; }
.cert-badge__name { font-family: var(--font-en); font-size: 19px; font-weight: 700; }
.cert-badge__sub { margin-top: 6px; font-size: 13.5px; color: var(--text-2); }

.cert-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cert-card {
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  background: var(--white);
  overflow: hidden;
}
.cert-card__media { height: 540px; background: var(--gray-bg); overflow: hidden; }
.cert-card__media img { width: 100%; height: 100%; object-fit: contain; }
.cert-card__meta { padding: 18px 22px 20px; border-top: 1px solid var(--gray-line); }
.cert-card__name { font-size: 14.5px; font-weight: 500; }
.cert-card__no { margin-top: 6px; font-size: 12px; color: var(--text-2); }

/* --------------------------------------------------------------------------
   13. 历程 / 组织 / 联系
   -------------------------------------------------------------------------- */
.milestone-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.milestone { padding-top: 22px; border-top: 2px solid var(--gray-line); position: relative; }
.milestone::before { content: ""; position: absolute; top: -2px; left: 0; width: 56px; height: 2px; background: var(--amber); }
.milestone__year { font-family: var(--font-en); font-size: 32px; font-weight: 700; letter-spacing: -.02em; }
.milestone__title { margin-top: 10px; font-size: 16px; font-weight: 700; }
.milestone__desc { margin-top: 10px; font-size: 13.5px; line-height: 1.8; color: var(--text-2); }

.org-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.org-card { padding: 24px; border: 1px solid var(--gray-line); border-radius: var(--radius); background: var(--white); }
.org-card__name { font-size: 16px; font-weight: 700; }
.org-card__func { margin-top: 8px; font-size: 13px; color: var(--text-2); }

.profile-row { display: grid; grid-template-columns: minmax(0, 1fr) 440px; gap: 56px; align-items: start; }
.profile-title { font-size: 30px; line-height: 1.5; font-weight: 700; letter-spacing: -.01em; white-space: pre-line; }
.profile-para { margin-top: 20px; font-size: 14.5px; line-height: 1.95; color: var(--text-2); }

.motto { font-size: 22px; line-height: 1.7; font-weight: 700; white-space: pre-line; }
.motto-desc { margin-top: 14px; font-size: 13.5px; line-height: 1.85; color: var(--text-2); }

/* 询盘表单 */
.contact-row { display: grid; grid-template-columns: minmax(0, 1fr) 440px; gap: 40px; align-items: start; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.field { display: grid; gap: 8px; }
.field--full { grid-column: 1 / -1; }
/* 蜜罐字段：正常用户看不见，机器人会填 */
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.field__label { font-size: 13px; font-weight: 500; }
.field__label .req { color: var(--amber); margin-left: 3px; }
.field input, .field textarea {
  width: 100%;
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--white);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  transition: border-color .18s ease, box-shadow .18s ease;
}
.field textarea { min-height: 120px; resize: vertical; line-height: 1.7; }
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(242, 96, 26, .12);
}
.field input::placeholder, .field textarea::placeholder { color: #A3AAB4; }

.info-list { display: grid; gap: 0; }
.info-row { display: flex; gap: 18px; padding: 14px 0; border-bottom: 1px solid var(--gray-line); }
.info-row:last-child { border-bottom: 0; }
.info-row__label { flex: none; width: 56px; font-size: 13px; color: var(--text-2); }
.info-row__value { font-size: 14.5px; font-weight: 500; word-break: break-all; }
.info-row__value a:hover { color: var(--amber-deep); }

/* 到厂路线 · 区位交通圈 */
.map-row { display: grid; grid-template-columns: minmax(0, 1fr) 460px; gap: 40px; align-items: start; }

.loc-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink);
  border: 1px solid #1B242C;
}
.loc-card__map { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.loc-card__map::-webkit-scrollbar { height: 6px; }
.loc-card__map::-webkit-scrollbar-track { background: var(--ink); }
.loc-card__map::-webkit-scrollbar-thumb { background: #2A3540; border-radius: 3px; }

.locmap { display: block; width: 100%; height: auto; font-family: var(--font-sans); }
.locmap__cap  { font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; fill: #6B7583; }
.locmap__ring { font-family: var(--font-mono); font-size: 10px; letter-spacing: .04em; fill: #5A6572; }
.locmap__pin-t { font-size: 13.5px; font-weight: 700; fill: #F1F3F5; }
.locmap__note { font-size: 11px; fill: #5A6572; }

/* 文字压在射线/圈线上时，描一圈底色保证可读 */
.locmap__lbl text,
.locmap__pin-t {
  paint-order: stroke fill;
  stroke: #0C0F13;
  stroke-width: 3px;
  stroke-linejoin: round;
}

.loc-card__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 20px;
  padding: 16px 20px;
  border-top: 1px solid var(--ink-line);
}
.loc-card__addr { display: flex; align-items: center; gap: 9px; font-size: 13.5px; color: var(--text-on-dark); }
.loc-card__addr svg { flex: none; color: var(--amber); }
.loc-card__acts { display: flex; flex-wrap: wrap; gap: 10px; }
.loc-hint { display: none; margin: 0; }

@media (max-width: 640px) {
  .locmap { min-width: 520px; }
  .loc-card__foot { padding: 14px 16px; }
  .loc-card__addr { font-size: 13px; }
  .loc-card__acts { width: 100%; }
  .loc-card__acts .btn { flex: 1 1 auto; }
  .loc-hint {
    display: block;
    flex: 1 1 100%;
    order: 9;
    font-size: 11.5px;
    color: #6E7883;
  }
}
.route-list { display: grid; gap: 0; }
.route-item { padding: 16px 0; border-bottom: 1px solid var(--gray-line); }
.route-item:last-child { border-bottom: 0; }
.route-item__name { font-size: 14.5px; font-weight: 700; }
.route-item__desc { margin-top: 6px; font-size: 13.5px; line-height: 1.8; color: var(--text-2); }

/* --------------------------------------------------------------------------
   14. CTA 条
   -------------------------------------------------------------------------- */
.cta-band { background: var(--ink); color: var(--text-on-dark); padding-block: 72px; position: relative; overflow: hidden; }
.cta-band__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.cta-band__title { font-size: 28px; font-weight: 700; letter-spacing: -.01em; }
.cta-band__sub { margin-top: 14px; font-size: 14.5px; line-height: 1.85; color: var(--text-on-dark-2); max-width: 620px; }
.cta-band__actions { display: flex; flex-wrap: wrap; gap: 14px; flex: none; }

/* --------------------------------------------------------------------------
   15. Footer
   -------------------------------------------------------------------------- */
.site-footer { position: relative; background: var(--ink); color: var(--text-on-dark); padding-top: 72px; overflow: hidden; }
.footer-watermark {
  position: absolute;
  top: 12px; left: 50%;
  transform: translateX(-50%);
  font-size: 132px;
  font-weight: 700;
  letter-spacing: .06em;
  color: rgba(255, 255, 255, .022);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}
.footer-top {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 620px;
  gap: 56px;
  padding-bottom: 56px;
}
.footer-brand__row { display: flex; align-items: center; gap: 12px; }
.footer-brand__name { font-size: 16px; font-weight: 700; }
.footer-desc { margin-top: 18px; max-width: 460px; font-size: 13.5px; line-height: 1.9; color: var(--text-on-dark-2); }
.footer-contacts { margin-top: 24px; display: grid; gap: 12px; }
.footer-contact { display: flex; align-items: center; gap: 10px; font-size: 13.5px; color: var(--text-on-dark-2); }
.footer-contact svg { flex: none; color: var(--amber); }
.footer-contact a:hover { color: var(--text-on-dark); }

.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-col__title { font-size: 13.5px; font-weight: 700; margin-bottom: 16px; }
.footer-col ul { display: grid; gap: 11px; }
.footer-col a { font-size: 13.5px; color: var(--text-on-dark-2); transition: color .18s ease; }
.footer-col a:hover { color: var(--amber); }

.footer-bottom {
  position: relative;
  border-top: 1px solid var(--ink-line);
  padding-block: 22px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--text-on-dark-2);
}
.footer-bottom a:hover { color: var(--text-on-dark); }

/* --------------------------------------------------------------------------
   16. 响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1180px) {
  :root { --sec-y: 76px; }

  .header-phone { display: none; }
  .site-nav { gap: 22px; }
  .site-nav a { font-size: 14px; }

  .hero__main { grid-template-columns: minmax(0, 1fr) 420px; gap: 40px; }
  .hero__title { font-size: 46px; }

  .prod-row { grid-template-columns: 440px minmax(0, 1fr); gap: 40px; }
  .profile-row { grid-template-columns: minmax(0, 1fr) 360px; gap: 40px; }
  .contact-row { grid-template-columns: minmax(0, 1fr) 360px; gap: 28px; }
  .map-row { grid-template-columns: minmax(0, 1fr) 380px; gap: 28px; }
  .footer-top { grid-template-columns: minmax(0, 1fr) 480px; gap: 40px; }

  .photo-grid { grid-template-columns: repeat(3, 1fr); }
  .flow-grid { grid-template-columns: repeat(3, 1fr); }
  .qc-grid { grid-template-columns: repeat(2, 1fr); }
  .org-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 980px) {
  .site-nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .header-actions .btn { display: none; }

  .hero { padding-top: 64px; }
  .hero__main { grid-template-columns: 1fr; gap: 40px; }
  .hero__visual { max-width: 560px; aspect-ratio: 4 / 3; }
  .hero__title { font-size: 40px; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); margin-top: 48px; }
  .stat { padding: 22px 0 26px; }
  .stat:nth-child(odd) { border-left: 0; padding-left: 0; }
  .stat:nth-child(n + 3) { border-top: 1px solid var(--ink-line); }

  .page-hero__stats, .page-hero__stats--3 { grid-template-columns: repeat(2, 1fr); }

  .prod-row { grid-template-columns: 1fr; gap: 28px; padding-block: 44px; }
  .prod-row--flip .prod-row__media { order: 0; }
  .prod-row__media { aspect-ratio: 16 / 10; }
  .prod-row__title h3 { font-size: 26px; }

  .profile-row { grid-template-columns: 1fr; gap: 32px; }
  .contact-row { grid-template-columns: 1fr; }
  .map-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { grid-template-columns: repeat(3, 1fr); }

  .photo-grid, .photo-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .flow-grid { grid-template-columns: repeat(2, 1fr); }
  .milestone-row { grid-template-columns: 1fr; gap: 32px; }
  .cert-gallery { grid-template-columns: repeat(2, 1fr); }
  .cert-card__media { height: 420px; }
  .org-grid { grid-template-columns: repeat(2, 1fr); }
  .sec-head--split { flex-direction: column; align-items: flex-start; gap: 20px; }

  .cta-band__inner { flex-direction: column; align-items: flex-start; gap: 28px; }
  .sec-title { font-size: 27px; }
  .sec-title--lg { font-size: 32px; }
  .page-hero__title { font-size: 36px; }
  .profile-title { font-size: 25px; }
}

@media (max-width: 680px) {
  :root { --sec-y: 60px; --header-h: 68px; }

  body { font-size: 14.5px; }

  .wrap { width: calc(100% - 32px); }

  .brand-name { font-size: 15.5px; }
  .brand-en { font-size: 8.5px; letter-spacing: .1em; }

  .hero { padding-top: 48px; }
  .hero__title { font-size: 32px; }
  .hero__sub { font-size: 14.5px; }
  .hero__ctas { gap: 10px; }
  .hero__ctas .btn { flex: 1 1 auto; }
  .hero__stats { margin-top: 36px; }
  .stat__value { font-size: 26px; }

  .page-hero { padding-block: 44px; }
  .page-hero__title { font-size: 30px; }
  .page-hero__sub { font-size: 14px; }
  .page-hero__stats, .page-hero__stats--3 { grid-template-columns: 1fr; gap: 18px; }
  .page-hero__stats .stat { padding: 0 0 16px; border-left: 0 !important; border-bottom: 1px solid var(--ink-line); }
  .page-hero__stats .stat:last-child { border-bottom: 0; padding-bottom: 0; }

  .sec-title { font-size: 23px; }
  .sec-title--lg { font-size: 27px; }
  .sec-head { margin-bottom: 32px; }

  .photo-grid, .photo-grid--3, .flow-grid, .qc-grid, .org-grid, .cert-gallery, .cert-row, .faq-grid, .grid--2, .grid--3, .grid--4 {
    grid-template-columns: 1fr;
  }
  .footer-links { grid-template-columns: repeat(2, 1fr); gap: 28px; }

  .cert-card__media { height: 360px; }
  .cert-badge { flex-direction: column; align-items: flex-start; gap: 14px; }

  .form-grid { grid-template-columns: 1fr; }
  .cta-band__title { font-size: 22px; }
  .cta-band__actions .btn { width: 100%; }

  .footer-watermark { font-size: 72px; top: 8px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 10px; }

  .spec-grid { grid-template-columns: 1fr; }

  .tbl { min-width: 760px; }
  .tbl th, .tbl td { padding: 0 14px; font-size: 13px; }
  .tbl__scroll-hint {
    display: block;
    padding: 10px 16px;
    font-size: 12px;
    color: var(--text-2);
    background: var(--white);
    border-top: 1px solid var(--gray-line);
  }
}

/* 尊重系统「减少动效」偏好 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}