/* ==========================================================================
   RICO® OPTICAL — 企业官网样式表
   品牌色：RICO 红 #D92027 / 墨黑 #14161A / 光学青 #0E8F9E
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  --brand: #d92027;
  --brand-dark: #ab151b;
  --brand-soft: #fdecec;
  --ink: #14161a;
  --ink-2: #2b2f36;
  --ink-3: #4b5158;
  --muted: #6d7480;
  --line: #e5e7eb;
  --line-2: #eef0f3;
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --bg-dark: #0d0f12;
  --bg-dark-2: #16191e;
  --optic: #0e8f9e;
  --radius: 4px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 2px rgba(16, 20, 26, .06);
  --shadow: 0 6px 24px -8px rgba(16, 20, 26, .14);
  --shadow-lg: 0 24px 60px -24px rgba(16, 20, 26, .32);
  --header-h: 72px;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
}

/* ---------- 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);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.no-scroll { overflow: hidden; }

h1, h2, h3, h4, h5 {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -.01em;
}

h1 { font-size: 44px; }
h2 { font-size: 32px; }
h3 { font-size: 20px; }
h4 { font-size: 17px; }

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a { color: inherit; text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--brand); }

img { max-width: 100%; display: block; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }

::selection { background: var(--brand); color: #fff; }

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

/* ---------- 3. 布局工具 ---------- */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.section--tight { padding: 72px 0; }
.section--soft { background: var(--bg-soft); }
.section--dark { background: var(--bg-dark); color: rgba(255, 255, 255, .72); }
.section--dark h2,
.section--dark h3,
.section--dark h4 { color: #fff; }

.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--5 { grid-template-columns: repeat(5, 1fr); }

.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }

/* ---------- 4. 区块标题 ---------- */
.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--brand);
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--brand);
}

.section-head--center .eyebrow::after {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--brand);
}

.section-head h2 { margin-bottom: 16px; }
.section-head p { color: var(--muted); font-size: 16px; }
.section--dark .section-head p { color: rgba(255, 255, 255, .6); }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .02em;
  white-space: nowrap;
  transition: all .24s var(--ease);
}

.btn svg { width: 16px; height: 16px; flex: none; }

.btn--primary { background: var(--brand); color: #fff; }
.btn--primary:hover { background: var(--brand-dark); color: #fff; box-shadow: 0 8px 20px -8px rgba(217, 32, 39, .7); }

.btn--ghost { border-color: rgba(255, 255, 255, .3); color: #fff; }
.btn--ghost:hover { background: rgba(255, 255, 255, .1); border-color: #fff; color: #fff; }

.btn--outline { border-color: var(--line); color: var(--ink); background: #fff; }
.btn--outline:hover { border-color: var(--ink); color: var(--ink); }

.btn--sm { height: 38px; padding: 0 18px; font-size: 13px; }
.btn--block { width: 100%; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand);
}
.link-arrow::after { content: "→"; transition: transform .24s var(--ease); }
.link-arrow:hover::after { transform: translateX(4px); }

/* ---------- 6. 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line-2);
  transition: box-shadow .3s var(--ease);
}
.site-header.is-scrolled { box-shadow: 0 4px 20px -12px rgba(16, 20, 26, .4); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: var(--header-h);
}

.brand { display: flex; align-items: center; gap: 12px; flex: none; }
.brand img { height: 30px; width: auto; }
.brand-divider { width: 1px; height: 26px; background: var(--line); }
.brand-sub {
  font-size: 12px;
  line-height: 1.35;
  color: var(--muted);
  letter-spacing: .02em;
}
.brand-sub strong { display: block; color: var(--ink); font-size: 13px; font-weight: 700; }

.nav { display: flex; align-items: center; gap: 4px; }

.nav-link {
  position: relative;
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .26s var(--ease);
}
.nav-link:hover { color: var(--ink); }
.nav-link:hover::after,
.nav-link.is-active::after { transform: scaleX(1); }
.nav-link.is-active { color: var(--ink); font-weight: 600; }

.header-actions { display: flex; align-items: center; gap: 12px; flex: none; }

.lang-switch {
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.lang-switch button {
  padding: 0 12px;
  height: 34px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: .04em;
  transition: all .2s var(--ease);
}
.lang-switch button.is-on { background: var(--ink); color: #fff; }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  align-items: center;
  justify-content: center;
}
.nav-toggle span {
  position: relative;
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  transition: background .2s;
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  transition: transform .28s var(--ease);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle.is-open span { background: transparent; }
.nav-toggle.is-open span::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-open span::after { transform: translateY(-6px) rotate(-45deg); }

/* 移动端抽屉 */
.drawer {
  position: fixed;
  inset: var(--header-h) 0 0;
  z-index: 890;
  background: #fff;
  padding: 24px;
  overflow-y: auto;
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: all .28s var(--ease);
}
.drawer.is-open { transform: none; opacity: 1; visibility: visible; }
.drawer nav { display: flex; flex-direction: column; }
.drawer .nav-link {
  padding: 16px 4px;
  border-bottom: 1px solid var(--line-2);
  font-size: 17px;
  border-radius: 0;
}
.drawer .nav-link::after { display: none; }
.drawer-foot { margin-top: 28px; display: flex; flex-direction: column; gap: 12px; }
.drawer-contact { font-size: 13px; color: var(--muted); line-height: 2; }

/* ---------- 7. Hero ---------- */
.hero {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  background: var(--bg-dark);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url("../images/hero.jpg");
  background-size: cover;
  background-position: 72% center;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(10, 12, 15, .95) 0%, rgba(10, 12, 15, .82) 34%, rgba(10, 12, 15, .35) 62%, rgba(10, 12, 15, .1) 100%);
}
.hero .container { position: relative; z-index: 2; padding-top: 90px; padding-bottom: 90px; }
.hero-inner { max-width: 620px; }

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px 7px 12px;
  margin-bottom: 26px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 100px;
  background: rgba(255, 255, 255, .05);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .82);
}
.hero-tag i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(217, 32, 39, .25);
}

.hero h1 {
  color: #fff;
  font-size: 54px;
  line-height: 1.16;
  letter-spacing: -.02em;
  margin-bottom: 22px;
}
.hero h1 em {
  font-style: normal;
  color: var(--brand);
}
.hero-lead {
  max-width: 540px;
  margin-bottom: 34px;
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .72);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0 44px;
  margin-top: 54px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, .14);
}
.hero-fact b {
  display: block;
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -.02em;
  line-height: 1.2;
}
.hero-fact b i { font-style: normal; font-size: 16px; color: var(--brand); margin-left: 2px; }
.hero-fact span { font-size: 12.5px; letter-spacing: .06em; color: rgba(255, 255, 255, .56); text-transform: uppercase; }

/* 内页页头 */
.page-hero {
  position: relative;
  padding: 84px 0 76px;
  background: var(--bg-dark);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(900px 340px at 78% -10%, rgba(217, 32, 39, .3), transparent 62%),
    radial-gradient(700px 300px at 10% 120%, rgba(14, 143, 158, .22), transparent 60%);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { color: #fff; margin-bottom: 14px; font-size: 40px; }
.page-hero p { max-width: 660px; color: rgba(255, 255, 255, .62); font-size: 16px; }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: rgba(255, 255, 255, .45);
  text-transform: uppercase;
}
.breadcrumb a:hover { color: #fff; }
.breadcrumb span { color: rgba(255, 255, 255, .28); }

/* ---------- 8. 通用卡片 ---------- */
.card {
  padding: 32px 30px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  border-color: transparent;
  box-shadow: var(--shadow);
}

.card-num {
  display: block;
  margin-bottom: 18px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--brand);
}
.card h3 { margin-bottom: 12px; }
.card p { color: var(--muted); font-size: 14.5px; }
.card-en {
  display: block;
  margin-bottom: 14px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--brand);
}

.icon-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 20px;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
}
.icon-box svg { width: 24px; height: 24px; }
.icon-box--brand { background: var(--brand); }
.icon-box--optic { background: var(--optic); }

/* 带左侧红条的强调块 */
.rule-card {
  padding-left: 26px;
  border-left: 3px solid var(--brand);
}
.rule-card h3 { margin-bottom: 10px; }

/* 清单 */
.check-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  font-size: 14.5px;
  color: var(--ink-3);
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 14px;
  height: 8px;
  border-left: 2px solid var(--brand);
  border-bottom: 2px solid var(--brand);
  transform: rotate(-45deg);
}
.section--dark .check-list li { color: rgba(255, 255, 255, .7); }

/* ---------- 9. 数据条 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat {
  padding: 0 28px;
  border-left: 1px solid rgba(255, 255, 255, .12);
}
.stat:first-child { border-left: 0; padding-left: 0; }
.stat b {
  display: block;
  font-size: 42px;
  font-weight: 700;
  line-height: 1.1;
  color: #fff;
  letter-spacing: -.02em;
}
.stat b i { font-style: normal; font-size: 18px; color: var(--brand); margin-left: 2px; }
.stat span { display: block; margin-top: 6px; font-size: 13px; color: rgba(255, 255, 255, .52); }

/* ---------- 10. 产品分类卡 ---------- */
.cat-card {
  position: relative;
  display: block;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: all .3s var(--ease);
}
.cat-card:hover { border-color: transparent; box-shadow: var(--shadow); transform: translateY(-4px); }
.cat-media {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--bg-soft);
  overflow: hidden;
}
.cat-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
}
.cat-card:hover .cat-media img { transform: scale(1.05); }
.cat-body { padding: 22px 24px 26px; }
.cat-body h3 { margin-bottom: 6px; font-size: 18px; }
.cat-body .cat-en {
  display: block;
  margin-bottom: 10px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}
.cat-body p { font-size: 13.5px; color: var(--muted); margin: 0; }

/* 让分类卡「看起来可点」：显式的行动提示 + 当前筛选高亮 */
.cat-more {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 15px;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand);
}
.cat-more::after { content: "→"; transition: transform .3s var(--ease); }
.cat-card:hover .cat-more::after { transform: translateX(4px); }
.cat-card.is-on { border-color: var(--brand); box-shadow: 0 12px 32px rgba(217, 32, 39, .16); }
.cat-card.is-on::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 2px var(--brand);
  pointer-events: none;
}

/* 产品列表锚点：点击分类卡后落到这里，不被吸顶页头遮住标题 */
#products-all { scroll-margin-top: calc(var(--header-h) + 16px); }
.cat-count {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 4px 11px;
  border-radius: 100px;
  background: rgba(20, 22, 26, .82);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .04em;
}

/* ---------- 11. 产品网格（产品中心） ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 36px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-btn {
  padding: 9px 18px;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: #fff;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink-3);
  transition: all .22s var(--ease);
}
.filter-btn:hover { border-color: var(--ink-3); color: var(--ink); }
.filter-btn.is-on { background: var(--ink); border-color: var(--ink); color: #fff; }
.filter-btn small { opacity: .55; margin-left: 5px; font-size: 11px; }

.result-count { font-size: 13px; color: var(--muted); }
.result-count b { color: var(--ink); font-weight: 700; }

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

.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all .3s var(--ease);
}
.product-card:hover { border-color: transparent; box-shadow: var(--shadow); transform: translateY(-4px); }
.product-media {
  position: relative;
  aspect-ratio: 1 / 1;
  background: #fff;
  border-bottom: 1px solid var(--line-2);
  overflow: hidden;
}
.product-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 14px;
  transition: transform .45s var(--ease);
}
.product-card:hover .product-media img { transform: scale(1.06); }

.badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  padding: 3px 10px;
  border-radius: 3px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #fff;
  background: var(--brand);
}
.badge--new { background: var(--optic); }
.badge--hot { background: var(--brand); }
.badge--oem { background: var(--ink); }

.product-body { padding: 16px 18px 20px; flex: 1; display: flex; flex-direction: column; }
.product-model {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--brand);
}
.product-name { margin: 5px 0 10px; font-size: 15px; font-weight: 600; color: var(--ink); }
.product-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; }
.tag {
  padding: 3px 9px;
  border-radius: 3px;
  background: var(--bg-soft);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .02em;
}
.product-more {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.product-more::after { content: "→"; color: var(--brand); font-weight: 600; }

.empty-state {
  grid-column: 1 / -1;
  padding: 72px 24px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: var(--radius-lg);
}
.empty-state b { display: block; margin-bottom: 10px; font-size: 19px; color: var(--ink); }
.empty-state span { display: block; margin-bottom: 22px; }
.empty-state .btn { display: inline-flex; }

/* ---------- 12. 产品详情弹窗 ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(10, 12, 15, .72);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: all .28s var(--ease);
}
.modal.is-open { opacity: 1; visibility: visible; }
.modal-box {
  position: relative;
  width: 100%;
  max-width: 1000px;
  max-height: 88vh;
  overflow-y: auto;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transform: translateY(14px) scale(.985);
  transition: transform .32s var(--ease);
}
.modal.is-open .modal-box { transform: none; }
.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 5;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, .92);
  border: 1px solid var(--line);
  font-size: 20px;
  line-height: 1;
  color: var(--ink);
}
.modal-close:hover { background: var(--ink); color: #fff; }

.modal-grid { display: grid; grid-template-columns: 1fr 1fr; }
.modal-gallery { background: var(--bg-soft); padding: 24px; }
.modal-main {
  aspect-ratio: 1 / 1;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 12px;
}
.modal-main img { width: 100%; height: 100%; object-fit: contain; padding: 16px; }
.modal-thumbs { display: flex; gap: 10px; }
.modal-thumbs button {
  width: 66px;
  height: 66px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
  padding: 4px;
  transition: border-color .2s;
}
.modal-thumbs button.is-on { border-color: var(--brand); }
.modal-thumbs img { width: 100%; height: 100%; object-fit: contain; }

.modal-info { padding: 34px 34px 38px; }
.modal-info h3 { margin: 6px 0 4px; font-size: 24px; }
.modal-en { font-size: 12.5px; color: var(--muted); letter-spacing: .04em; margin-bottom: 20px; }

.spec-table { width: 100%; border-collapse: collapse; margin: 20px 0 24px; font-size: 13.5px; }
.spec-table th,
.spec-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line-2);
  text-align: left;
  vertical-align: top;
}
.spec-table th {
  width: 38%;
  color: var(--muted);
  font-weight: 500;
  background: var(--bg-soft);
  white-space: nowrap;
}
.spec-table td { color: var(--ink-2); }

.pack-box {
  padding: 16px 18px;
  margin-bottom: 22px;
  background: var(--bg-soft);
  border-left: 3px solid var(--optic);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 13px;
  line-height: 1.9;
  color: var(--ink-3);
  white-space: pre-line;
}

/* ---------- 13. 时间线 ---------- */
.timeline { position: relative; padding-left: 30px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--brand), var(--line));
}
.tl-item { position: relative; padding-bottom: 40px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 6px;
  width: 11px;
  height: 11px;
  border: 2px solid var(--brand);
  border-radius: 50%;
  background: #fff;
}
.tl-year {
  display: block;
  margin-bottom: 6px;
  font-size: 18px;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: .02em;
}
.tl-item h4 { margin-bottom: 6px; font-size: 16px; }
.tl-item p { font-size: 14px; color: var(--muted); margin: 0; }

/* 横向时间线（关于我们） */
.tl-h {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  border-top: 2px solid var(--line);
}
.tl-h-item {
  position: relative;
  padding: 30px 18px 0 0;
}
.tl-h-item::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(217, 32, 39, .14);
}
.tl-h-year { font-size: 22px; font-weight: 700; color: var(--ink); }
.tl-h-item p { margin-top: 8px; font-size: 13.5px; color: var(--muted); }

/* ---------- 14. 工厂 / 认证 ---------- */
.media-collage { display: grid; grid-template-columns: 1.55fr 1fr; gap: 18px; }
.media-collage .m-main { grid-row: span 2; }
.media-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--bg-soft);
  aspect-ratio: 16 / 10;
}
.media-collage .m-main { aspect-ratio: auto; }
.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease);
}
.media-frame:hover img { transform: scale(1.04); }
.media-cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 34px 20px 16px;
  background: linear-gradient(transparent, rgba(10, 12, 15, .82));
  color: #fff;
  font-size: 13.5px;
  font-weight: 600;
}

.cert-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.cert-card {
  display: block;
  padding: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all .3s var(--ease);
}
.cert-card:hover { border-color: transparent; box-shadow: var(--shadow); transform: translateY(-4px); }
.cert-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: contain;
  margin-bottom: 12px;
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 8px;
}
.cert-card b { display: block; font-size: 13px; color: var(--ink); }
.cert-card span { display: block; margin-top: 3px; font-size: 11.5px; color: var(--muted); }

/* ---------- 15. 新闻 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  display: flex;
  flex-direction: column;
  padding: 30px 28px 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: all .3s var(--ease);
}
.news-card:hover { border-color: transparent; box-shadow: var(--shadow); transform: translateY(-4px); }
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 12.5px;
  color: var(--muted);
}
.news-cat {
  padding: 3px 10px;
  border-radius: 3px;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .04em;
}
.news-card h3 { margin-bottom: 12px; font-size: 17px; line-height: 1.5; }
.news-card p { font-size: 14px; color: var(--muted); }
.news-card .link-arrow { margin-top: 20px; }

.news-feature {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 0;
  background: var(--ink);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 36px;
}
.news-feature-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 32px 20px;
  background: var(--brand);
  color: #fff;
  text-align: center;
}
.news-feature-date b { font-size: 44px; font-weight: 700; line-height: 1; }
.news-feature-date span { font-size: 13px; letter-spacing: .1em; opacity: .85; }
.news-feature-body { padding: 34px 38px; color: rgba(255, 255, 255, .68); }
.news-feature-body h3 { color: #fff; font-size: 22px; margin-bottom: 12px; }
.news-feature-body .news-cat { background: rgba(255, 255, 255, .12); color: #fff; margin-bottom: 14px; }

/* ---------- 16. 表单 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 13px; font-weight: 600; color: var(--ink); }
.field label i { font-style: normal; color: var(--brand); }
.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  font-size: 14px;
  transition: border-color .2s, box-shadow .2s;
}
.field textarea { min-height: 132px; resize: vertical; line-height: 1.7; }
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(217, 32, 39, .1);
}
.field .err { display: none; font-size: 12px; color: var(--brand); }
.field.has-error input,
.field.has-error textarea { border-color: var(--brand); }
.field.has-error .err { display: block; }

.form-note { margin-top: 16px; font-size: 12.5px; color: var(--muted); }
.form-alert {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  margin-bottom: 22px;
  border-radius: var(--radius);
  background: #eefaf1;
  border: 1px solid #bfe7cb;
  color: #1c7a3c;
  font-size: 14px;
}
.form-alert.is-on { display: flex; }

/* 联系信息条目 */
.info-list { display: flex; flex-direction: column; }
.info-item {
  display: flex;
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-2);
}
.info-item:first-child { padding-top: 0; }
.info-item:last-child { border-bottom: 0; padding-bottom: 0; }
.info-icon {
  flex: none;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  background: var(--bg-soft);
  color: var(--brand);
}
.info-icon svg { width: 19px; height: 19px; }
.info-item b { display: block; margin-bottom: 3px; font-size: 14.5px; color: var(--ink); }
.info-item span,
.info-item a { font-size: 14px; color: var(--muted); line-height: 1.7; word-break: break-word; }
.info-item a:hover { color: var(--brand); }

.map-wrap {
  position: relative;
  height: 420px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-soft);
}
.map-wrap iframe { width: 100%; height: 100%; border: 0; display: block; filter: grayscale(.18); }
/* 地图底部常驻地址条（地图加载失败时信息依然可见） */
.map-fallback {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 34px 22px 16px;
  background: linear-gradient(transparent, rgba(255, 255, 255, .97) 42%);
  pointer-events: none;
  text-align: left;
}
.map-fallback b { font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--brand); }
.map-fallback span { font-size: 14px; color: var(--ink); font-weight: 500; }
.map-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }

/* ---------- 16b. FAQ 手风琴 ---------- */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { padding: 0; overflow: hidden; }
.faq-item:hover { transform: none; box-shadow: none; border-color: var(--line); }
.faq-item[open] { border-color: var(--line); box-shadow: var(--shadow-sm); }
.faq-item summary {
  position: relative;
  display: block;
  padding: 20px 60px 20px 24px;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "";
  position: absolute;
  right: 24px;
  top: 50%;
  width: 10px;
  height: 10px;
  margin-top: -7px;
  border-right: 2px solid var(--brand);
  border-bottom: 2px solid var(--brand);
  transform: rotate(45deg);
  transition: transform .28s var(--ease);
}
.faq-item[open] summary::after { transform: rotate(-135deg); margin-top: -3px; }
.faq-item p {
  padding: 0 60px 22px 24px;
  margin: 0;
  font-size: 14.5px;
  color: var(--muted);
  border-top: 1px solid var(--line-2);
  padding-top: 18px;
}

/* ---------- 16c. 联系页双栏 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: start; }
.contact-form-card {
  padding: 38px 36px 40px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

/* 客户服务 / 技术支持 双栏 */
.svc-card {
  display: flex;
  gap: 20px;
  padding: 30px 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.svc-card .icon-box { margin-bottom: 0; flex: none; }
.svc-card h3 { margin-bottom: 8px; font-size: 17px; }
.svc-card p { font-size: 14px; color: var(--muted); margin-bottom: 10px; }

/* ---------- 16d. 合作伙伴 / 营销网络 ---------- */
.partner-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px;
}
.partner-chip {
  padding: 12px 26px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 100px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, .72);
}
.market-list { display: flex; flex-wrap: wrap; gap: 8px; }
.market-list span {
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 100px;
  font-size: 13px;
  color: var(--ink-3);
}
.section--dark .market-list span { border-color: rgba(255, 255, 255, .18); color: rgba(255, 255, 255, .78); }

/* ---------- 17. 页脚 ---------- */
.site-footer { background: var(--bg-dark); color: rgba(255, 255, 255, .58); padding: 72px 0 0; }
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 48px;
  padding-bottom: 52px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.footer-brand img { height: 30px; margin-bottom: 20px; }
.footer-brand p { font-size: 13.5px; line-height: 1.85; max-width: 320px; }
.footer-col h4 {
  margin-bottom: 20px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #fff;
}
.footer-col li { margin-bottom: 11px; font-size: 13.5px; }
.footer-col a:hover { color: #fff; }
.footer-contact li { display: flex; gap: 10px; font-size: 13.5px; margin-bottom: 7px; }
.footer-contact svg { flex: none; width: 15px; height: 15px; margin-top: 5px; color: var(--brand); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 24px 0;
  font-size: 12.5px;
}
.footer-bottom nav { display: flex; flex-wrap: wrap; gap: 20px; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 18. 返回顶部 ---------- */
.to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 800;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all .3s var(--ease);
}
.to-top.is-on { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--brand); color: #fff; }

/* ---------- 19. 滚动入场动画 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
[data-reveal].is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* ==========================================================================
   20. 响应式
   ========================================================================== */
@media (max-width: 1200px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .cert-grid { grid-template-columns: repeat(4, 1fr); }
  .tl-h { grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
}

@media (max-width: 1024px) {
  .nav,
  .header-actions .btn { display: none; }
  .nav-toggle { display: flex; }
  .hero h1 { font-size: 42px; }
  .hero { min-height: 560px; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--5 { grid-template-columns: repeat(3, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 32px 0; }
  .stat:nth-child(3) { border-left: 0; padding-left: 0; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .media-collage { grid-template-columns: 1fr; }
  .media-collage .m-main { grid-row: auto; aspect-ratio: 16 / 10; }
  .modal-grid { grid-template-columns: 1fr; }
  .modal-gallery { padding: 20px; }
  .news-feature { grid-template-columns: 1fr; }
  .news-feature-date { flex-direction: row; gap: 12px; padding: 20px; }
  .news-feature-date b { font-size: 30px; }
}

@media (max-width: 768px) {
  body { font-size: 14.5px; }
  .container { padding: 0 20px; }
  .section { padding: 64px 0; }
  .section--tight { padding: 52px 0; }
  .section-head { margin-bottom: 36px; }
  h1 { font-size: 32px; }
  h2 { font-size: 25px; }
  .hero { min-height: auto; }
  .hero .container { padding-top: 64px; padding-bottom: 64px; }
  .hero-bg { background-position: 68% center; }
  .hero-bg::after {
    background: linear-gradient(180deg, rgba(10, 12, 15, .8) 0%, rgba(10, 12, 15, .88) 45%, rgba(10, 12, 15, .95) 100%);
  }
  .hero h1 { font-size: 33px; }
  .hero-lead { font-size: 15px; }
  .hero-facts { gap: 22px 30px; margin-top: 38px; padding-top: 24px; }
  .hero-fact b { font-size: 24px; }
  .hero-fact span { font-size: 11.5px; }

  .page-hero { padding: 56px 0 52px; }
  .page-hero h1 { font-size: 29px; }
  .page-hero p { font-size: 14.5px; }

  .grid--2,
  .grid--3,
  .grid--4,
  .grid--5 { grid-template-columns: 1fr; }
  .grid { gap: 18px; }
  .card { padding: 26px 22px; }

  .stats { grid-template-columns: 1fr 1fr; gap: 26px 0; }
  .stat { padding: 0 18px; }
  .stat b { font-size: 30px; }
  .stat span { font-size: 12px; }

  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .product-body { padding: 13px 14px 16px; }
  .product-name { font-size: 14px; }
  .product-more { font-size: 11.5px; }
  .product-more::after { content: "查看 →"; }
  .badge { top: 9px; left: 9px; padding: 2px 8px; font-size: 10px; }

  .filter-bar { flex-direction: column; align-items: stretch; gap: 14px; }
  .filters { gap: 6px; }
  .filter-btn { padding: 8px 14px; font-size: 13px; }

  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  /* 产品中心的分类概览在手机上排 2 列，避免占用过多首屏滚动 */
  .cat-intro .grid--4 { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .cat-intro .cat-body { padding: 14px 14px 16px; }
  .cat-intro .cat-body h3 { font-size: 15px; }
  .cat-intro .cat-body p { display: none; }
  .cat-intro .cat-count { top: 9px; right: 9px; font-size: 10.5px; padding: 3px 8px; }
  .news-grid { grid-template-columns: 1fr; }
  .news-feature-body { padding: 24px 22px; }
  .news-feature-body h3 { font-size: 19px; }

  .form-grid { grid-template-columns: 1fr; gap: 15px; }
  .info-item { padding: 18px 0; }

  .footer-top { grid-template-columns: 1fr; gap: 34px; padding-bottom: 36px; }
  .site-footer { padding-top: 56px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }

  .tl-h { grid-template-columns: 1fr 1fr; row-gap: 34px; }
  .tl-h-year { font-size: 19px; }

  .modal { padding: 0; align-items: flex-end; }
  .modal-box { max-height: 92vh; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
  .modal-info { padding: 26px 22px 32px; }
  .modal-info h3 { font-size: 20px; }
  .spec-table { font-size: 13px; }
  .spec-table th { width: 44%; }

  .map-wrap { height: 320px; }
  .to-top { right: 16px; bottom: 16px; }
  .contact-grid { grid-template-columns: 1fr; gap: 34px; }
  .contact-form-card { padding: 26px 22px 30px; }
  .svc-card { padding: 24px 20px; gap: 16px; }
}

@media (max-width: 480px) {
  .brand-sub { display: none; }
  .brand-divider { display: none; }
  .hero h1 { font-size: 28px; }
  .hero-actions .btn { flex: 1; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .modal-thumbs button { width: 56px; height: 56px; }
  .tl-h { grid-template-columns: 1fr; }
}

/* ---------- 21. 打印 ---------- */
@media print {
  .site-header, .to-top, .drawer, .modal, .hero-actions { display: none !important; }
  body { color: #000; }
  .hero, .page-hero, .section--dark, .site-footer { background: #fff !important; }
  .hero h1, .page-hero h1, .section--dark h2 { color: #000 !important; }
}

/* ==========================================================================
   22. 首页轮播 / 数据条 / 简介
   ========================================================================== */

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 999;
  padding: 10px 18px;
  background: var(--brand);
  color: #fff;
  border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; color: #fff; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---- 轮播 ---- */
.hero--carousel { display: block; min-height: 0; padding: 0; }
.hero-slides { position: relative; height: clamp(420px, 56vw, 700px); }
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity .9s var(--ease), visibility .9s;
}
.hero-slide.is-on { opacity: 1; visibility: visible; }
.hero-slide .hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.03);
}
.hero-slide.is-on .hero-bg { animation: heroZoom 7s var(--ease) forwards; }
@keyframes heroZoom { from { transform: scale(1.03); } to { transform: scale(1.09); } }

.hero-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 10, 13, .86) 0%, rgba(8, 10, 13, .62) 42%, rgba(8, 10, 13, .12) 72%, rgba(8, 10, 13, .3) 100%);
}
.hero-copy {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: center;
}
.hero-copy .container { padding-top: 20px; padding-bottom: 20px; }
.hero-copy h1 {
  max-width: 15em;
  margin-bottom: 16px;
  font-size: clamp(30px, 4.2vw, 52px);
  color: #fff;
  text-shadow: 0 2px 24px rgba(0, 0, 0, .35);
}
.hero-copy p {
  max-width: 34em;
  margin-bottom: 30px;
  font-size: clamp(14px, 1.4vw, 17px);
  color: rgba(255, 255, 255, .82);
}
.hero-eyebrow {
  display: inline-block;
  margin-bottom: 16px;
  padding: 5px 12px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .16em;
  color: #fff;
  background: var(--brand);
  border-radius: 2px;
}
.hero-copy .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-copy .btn--ghost {
  border-color: rgba(255, 255, 255, .5);
  color: #fff;
  background: rgba(255, 255, 255, .08);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.hero-copy .btn--ghost:hover { background: #fff; color: var(--ink); border-color: #fff; }

.hero-nav {
  position: absolute;
  left: 0; right: 0; bottom: 26px;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
}
.hero-arrow {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; line-height: 1;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .38);
  border-radius: 50%;
  background: rgba(0, 0, 0, .22);
  transition: all .25s var(--ease);
}
.hero-arrow:hover { background: var(--brand); border-color: var(--brand); }
.hero-dots { display: flex; gap: 9px; }
.hero-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .42);
  transition: all .25s var(--ease);
}
.hero-dot.is-on { width: 26px; border-radius: 5px; background: var(--brand); }

/* ---- 数据条 ---- */
.stats-band { background: var(--bg-dark); padding: 54px 0; }
.stats-band .stat { border-left-color: rgba(255, 255, 255, .14); }
.stats-band .stat b { color: #fff; }
.stats-band .stat span { color: rgba(255, 255, 255, .55); }

/* 浅色区块内的数据条 */
.section .stats { gap: 0; }
.section .stat { border-left-color: var(--line); }
.section .stat b { color: var(--ink); }
.section .stat span { color: var(--muted); }
.stat b i { font-style: normal; font-size: 18px; color: var(--brand); margin-left: 2px; }

/* ---- 简介 ---- */
.intro-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
  align-items: center;
}
.intro-copy .eyebrow { margin-bottom: 14px; }
.intro-copy h2 { margin-bottom: 20px; }
.intro-profile { color: var(--ink-3); }
.intro-scale {
  margin: 20px 0 22px;
  padding: 12px 16px;
  font-size: 13.5px;
  color: var(--ink-2);
  background: var(--bg-soft);
  border-left: 3px solid var(--brand);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.list-title {
  display: block;
  margin: 24px 0 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--ink);
  text-transform: uppercase;
}

/* ---- 勾选列表 ---- */
.tick-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.tick-item { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; color: var(--ink-2); }
.tick {
  flex: none;
  width: 17px; height: 17px;
  margin-top: 4px;
  position: relative;
  border-radius: 50%;
  background: var(--brand-soft);
}
.tick::after {
  content: "";
  position: absolute;
  left: 5px; top: 3px;
  width: 5px; height: 9px;
  border: solid var(--brand);
  border-width: 0 2px 2px 0;
  transform: rotate(42deg);
}

/* ---- 优势 / 能力 ---- */
.sub-head {
  margin: 52px 0 24px;
  font-size: 20px;
  letter-spacing: .02em;
}
.adv-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 8px;
}
.adv-card {
  padding: 28px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: all .3s var(--ease);
}
.adv-card:hover { border-color: transparent; box-shadow: var(--shadow); transform: translateY(-4px); }
.adv-num {
  display: block;
  margin-bottom: 12px;
  font-size: 24px;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: -.02em;
}
.adv-card h3 { font-size: 16px; line-height: 1.5; }

.cap-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.cap-card {
  padding: 30px 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  border-top: 3px solid var(--brand);
}
.cap-card h3 { margin-bottom: 12px; font-size: 17px; }
.cap-card p { font-size: 14px; color: var(--muted); line-height: 1.8; }

.team-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 40px; }
.team-card {
  padding: 32px 30px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.team-card h3 { margin-bottom: 18px; font-size: 17px; }
.team-card .tick-list { margin-bottom: 0; }

.sup-list { display: flex; flex-direction: column; gap: 16px; }
.sup-item h3 { margin-bottom: 4px; font-size: 15px; }
.sup-item p { font-size: 13.5px; color: var(--muted); line-height: 1.7; }

/* ==========================================================================
   23. 内页头图
   ========================================================================== */
.page-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: .34;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(9, 11, 14, .55) 0%, rgba(9, 11, 14, .86) 100%);
}
.page-hero-inner { position: relative; z-index: 2; }
.page-hero h1 { color: #fff; margin-bottom: 14px; }
.page-hero p { max-width: 62ch; color: rgba(255, 255, 255, .74); font-size: 15.5px; }
.page-hero--short { padding: 66px 0 62px; }
.page-hero--short h1 { font-size: 36px; }
.breadcrumb { display: flex; gap: 8px; align-items: center; margin-bottom: 18px; font-size: 12.5px; color: rgba(255, 255, 255, .55); }
.breadcrumb a { color: rgba(255, 255, 255, .78); }
.breadcrumb a:hover { color: #fff; }

/* ==========================================================================
   24. 关于我们
   ========================================================================== */
.about-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 56px; align-items: start; }
.story-body p { color: var(--ink-3); }
.facts-table, .spec-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.facts-table th, .spec-table th {
  padding: 12px 0;
  width: 116px;
  text-align: left;
  vertical-align: top;
  font-weight: 600;
  color: var(--muted);
  border-bottom: 1px solid var(--line-2);
}
.facts-table td, .spec-table td {
  padding: 12px 0 12px 16px;
  vertical-align: top;
  color: var(--ink-2);
  border-bottom: 1px solid var(--line-2);
}
.facts-table tr:last-child th, .facts-table tr:last-child td,
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.facts-table td .dim, .dim { display: block; font-size: 12.5px; color: var(--muted); }
.spec-table td .dim { display: inline; }

.tl-body h3 { margin-bottom: 6px; font-size: 17px; }
.tl-body p { font-size: 14px; color: var(--muted); line-height: 1.8; }

/* ---- 工厂实景 ---- */
.shot-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.shot { position: relative; margin: 0; overflow: hidden; border-radius: var(--radius-lg); background: var(--bg-soft); }
.shot img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .6s var(--ease); }
.shot:hover img { transform: scale(1.05); }
.shot figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 26px 16px 12px;
  font-size: 12.5px;
  color: #fff;
  background: linear-gradient(180deg, transparent, rgba(8, 10, 13, .82));
}

/* ---- 市场覆盖 ---- */
.market-wrap { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.market-chip {
  padding: 9px 20px;
  font-size: 14px;
  color: var(--ink-2);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 100px;
  transition: all .25s var(--ease);
}
.market-chip:hover { border-color: var(--brand); color: var(--brand); }

/* ==========================================================================
   25. 资质证书
   ========================================================================== */
.cert-media { position: relative; }
.cert-card img { aspect-ratio: 3 / 4; object-fit: contain; }
.cert-zoom {
  position: absolute;
  right: 10px; bottom: 10px;
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  color: #fff;
  background: rgba(20, 22, 26, .72);
  border-radius: 50%;
  opacity: 0;
  transition: all .25s var(--ease);
}
.cert-card:hover .cert-zoom { opacity: 1; }
.cert-zoom:hover { background: var(--brand); }
.cert-card figcaption b { display: block; font-size: 14px; color: var(--ink); }
.cert-card figcaption span { display: block; margin-top: 4px; font-size: 12.5px; color: var(--muted); line-height: 1.6; }

/* ---- 灯箱 ---- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  background: rgba(8, 10, 13, .92);
  opacity: 0;
  visibility: hidden;
  transition: opacity .22s var(--ease), visibility .22s;
}
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox img { max-width: 92vw; max-height: 88vh; width: auto; border-radius: var(--radius); background: #fff; }
.lightbox-close {
  position: absolute;
  right: 24px; top: 18px;
  font-size: 34px;
  line-height: 1;
  color: #fff;
  opacity: .8;
}
.lightbox-close:hover { opacity: 1; color: var(--brand); }

/* ==========================================================================
   26. 产品中心
   ========================================================================== */
.filter-sep { width: 1px; height: 22px; background: var(--line); margin: 0 4px; }
.filter-btn--tag.is-on { background: var(--brand); border-color: var(--brand); color: #fff; }
.filter-btn small { margin-left: 6px; font-size: 11px; opacity: .6; font-weight: 400; }

.filter-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: 22px 0 34px;
}
.filter-search { flex: 1 1 260px; max-width: 420px; }
.filter-search input {
  width: 100%;
  padding: 11px 16px;
  font-size: 14px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 100px;
  transition: border-color .2s var(--ease);
}
.filter-search input:focus { outline: none; border-color: var(--brand); }
.filter-tools .result-count { margin-left: auto; font-size: 13.5px; color: var(--muted); }
.filter-tools .result-count b { color: var(--brand); }

.product-noimg {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: repeating-linear-gradient(45deg, #fafbfc 0 12px, #f3f4f7 12px 24px);
}
.product-noimg span { font-size: 15px; font-weight: 700; color: var(--ink-3); letter-spacing: .04em; }
.product-noimg em { font-size: 11.5px; font-style: normal; color: var(--muted); }

.notice-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: baseline;
  margin-top: 40px;
  padding: 18px 22px;
  font-size: 13.5px;
  color: var(--muted);
  background: var(--bg-soft);
  border-left: 3px solid var(--brand);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.notice-strip b { color: var(--ink); }

/* ---- 详情弹窗补充 ---- */
.modal-desc {
  margin: 6px 0 16px;
  padding: 14px 16px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-3);
  background: var(--bg-soft);
  border-radius: var(--radius);
}
.modal-kw { margin: 12px 0 16px; font-size: 12px; color: var(--muted); word-break: break-word; }
.modal-main--ph {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: repeating-linear-gradient(45deg, #fafbfc 0 14px, #f3f4f7 14px 28px);
}
.modal-main--ph span { font-size: 20px; font-weight: 700; color: var(--ink-3); }
.modal-main--ph em { font-size: 12.5px; font-style: normal; color: var(--muted); }
.mb-20 { margin-bottom: 20px; }

/* ==========================================================================
   27. 新闻
   ========================================================================== */
.news-grid--full { grid-template-columns: repeat(3, 1fr); }
.news-card[data-news-i] { cursor: pointer; }
.news-detail { padding: 8px 4px 4px; }
.news-detail h2 { margin: 10px 0 6px; font-size: 26px; line-height: 1.4; }
.news-detail-en { margin-bottom: 22px; font-size: 14px; color: var(--muted); }
.news-body { font-size: 15px; line-height: 1.95; color: var(--ink-3); }
.news-detail-cta { margin-top: 32px; padding-top: 22px; border-top: 1px solid var(--line-2); }

/* ==========================================================================
   28. 联系我们
   ========================================================================== */
.info-item .info-icon {
  flex: none;
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  font-size: 17px;
  color: var(--brand);
  background: var(--brand-soft);
  border-radius: 50%;
}
.info-item b { display: block; margin-bottom: 3px; font-size: 14px; color: var(--ink); }
.info-item div > span, .info-item div > a { display: block; font-size: 14px; color: var(--ink-3); line-height: 1.75; }
.info-item div > a:hover { color: var(--brand); }
.sub-head-sm { margin: 36px 0 16px; font-size: 16px; }
.svc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.svc-item {
  padding: 12px 16px;
  background: var(--bg-soft);
  border-radius: var(--radius);
  transition: background .2s var(--ease);
}
a.svc-item:hover { background: var(--brand-soft); }
.svc-item b { display: block; font-size: 12.5px; color: var(--muted); font-weight: 600; }
.svc-item span { font-size: 14px; color: var(--ink-2); word-break: break-all; }

/* 厂区卡片（联系我们页 / 关于我们页公司档案） */
.plant-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.plant-card {
  padding: 26px 26px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: all .25s var(--ease);
}
.plant-card:hover { border-color: transparent; box-shadow: var(--shadow); }
.plant-head { margin-bottom: 14px; }
.plant-head h3 { margin: 0 0 8px; font-size: 17px; }
.plant-role {
  display: inline-block;
  padding: 3px 11px;
  font-size: 12.5px;
  color: var(--brand);
  background: var(--brand-soft);
  border-radius: 100px;
}
.plant-rows { display: grid; gap: 8px; }
.plant-rows li { display: flex; gap: 10px; font-size: 14px; color: var(--ink-3); line-height: 1.7; }
.plant-rows .pi { flex: none; width: 16px; color: var(--brand); }
.plant-rows a { color: var(--ink-3); }
.plant-rows a:hover { color: var(--brand); }
.fact-plant { display: block; }
.fact-plant + .fact-plant { margin-top: 7px; }
.fact-plant b { display: block; font-size: 13px; color: var(--ink); font-weight: 600; }

.form-intro { margin-bottom: 20px; font-size: 13.5px; color: var(--muted); }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-error {
  display: none;
  margin-bottom: 14px;
  padding: 12px 16px;
  font-size: 13.5px;
  color: #97201f;
  background: #fdeeee;
  border-radius: var(--radius);
}
.form-error.is-on { display: block; }

.support-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.support-grid .sup-item { padding: 26px 24px; background: var(--bg-soft); border-radius: var(--radius-lg); }
.support-grid .sup-item h3 { margin-bottom: 8px; font-size: 16px; }
.support-grid .sup-item p { font-size: 13.5px; color: var(--muted); line-height: 1.75; }

.dl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.dl-item {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 20px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: all .25s var(--ease);
}
.dl-item:hover { border-color: transparent; box-shadow: var(--shadow); transform: translateY(-3px); }
.dl-ico {
  flex: none;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: #fff;
  background: var(--brand);
  border-radius: var(--radius);
}
.dl-txt b { display: block; font-size: 14.5px; color: var(--ink); }
.dl-txt em { font-size: 12.5px; font-style: normal; color: var(--muted); }

.net-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.net-card {
  display: block;
  padding: 30px 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: all .25s var(--ease);
}
a.net-card:hover { border-color: transparent; box-shadow: var(--shadow); transform: translateY(-3px); }
.net-card h3 { margin-bottom: 10px; font-size: 16px; }
.net-card p { margin-bottom: 14px; font-size: 13.5px; color: var(--muted); }

.partner {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 158px; height: 84px;
  padding: 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.partner img { max-height: 100%; width: auto; object-fit: contain; filter: grayscale(1); opacity: .72; transition: all .25s var(--ease); }
.partner:hover img { filter: none; opacity: 1; }

/* ==========================================================================
   29. 行动号召 / 页脚补充
   ========================================================================== */
.cta-band {
  position: relative;
  padding: 76px 0;
  background: linear-gradient(115deg, #14161a 0%, #24272e 52%, #3d1417 100%);
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  right: -120px; top: -120px;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217, 32, 39, .34), transparent 68%);
}
.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}
.cta-inner h2 { margin-bottom: 10px; color: #fff; font-size: 30px; }
.cta-inner p { margin: 0; max-width: 54ch; color: rgba(255, 255, 255, .7); }
.cta-acts { display: flex; flex-wrap: wrap; gap: 12px; }
.cta-acts .btn--ghost {
  border-color: rgba(255, 255, 255, .45);
  color: #fff;
  background: rgba(255, 255, 255, .07);
}
.cta-acts .btn--ghost:hover { background: #fff; color: var(--ink); border-color: #fff; }

.footer-cert {
  margin-top: 16px;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--brand);
  font-weight: 600;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  padding: 24px 0;
  font-size: 13px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.footer-links a { color: rgba(255, 255, 255, .62); }
.footer-links a:hover { color: #fff; }
.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
}
.footer-icp a { color: rgba(255, 255, 255, .55); }

/* ==========================================================================
   30. 新增组件响应式
   ========================================================================== */
@media (max-width: 1200px) {
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .support-grid, .dl-grid, .net-grid { grid-template-columns: repeat(2, 1fr); }
  .shot-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid--full { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1024px) {
  .intro-grid { grid-template-columns: 1fr; gap: 40px; }
  .intro-media { max-width: 640px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .team-grid { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .header-cta { display: none; }
}

@media (max-width: 768px) {
  .plant-grid { grid-template-columns: 1fr; }
  .hero-slides { height: clamp(380px, 88vw, 520px); }
  .hero-scrim { background: linear-gradient(180deg, rgba(8, 10, 13, .55) 0%, rgba(8, 10, 13, .84) 62%, rgba(8, 10, 13, .9) 100%); }
  .hero-copy { align-items: flex-end; padding-bottom: 74px; }
  .hero-copy h1 { font-size: 28px; }
  .hero-copy p { margin-bottom: 22px; }
  .hero-nav { bottom: 18px; }
  .hero-arrow { width: 34px; height: 34px; font-size: 18px; }
  .hero-copy .btn { flex: 1 1 auto; }

  .page-hero--short { padding: 52px 0 48px; }
  .page-hero--short h1 { font-size: 27px; }
  .page-hero p { font-size: 14px; }

  .stats-band { padding: 40px 0; }
  .section .stats, .stats-band .stats { grid-template-columns: repeat(2, 1fr); gap: 26px 0; }
  .section .stat, .stats-band .stat { padding: 0 18px; }
  .section .stat:nth-child(odd), .stats-band .stat:nth-child(odd) { border-left: 0; padding-left: 0; }

  .adv-grid, .cap-grid { grid-template-columns: 1fr; }
  .support-grid, .dl-grid, .net-grid, .svc-grid { grid-template-columns: 1fr; }
  .shot-grid { grid-template-columns: 1fr; gap: 12px; }
  .news-grid--full { grid-template-columns: 1fr; }
  .sub-head { margin-top: 40px; }
  .facts-table th { width: 92px; }
  .filter-tools .result-count { margin-left: 0; width: 100%; }
  .cta-band { padding: 56px 0; }
  .cta-inner h2 { font-size: 23px; }
  .lightbox { padding: 16px; }
  .lightbox-close { right: 14px; top: 10px; }
}

@media (max-width: 480px) {
  .adv-card, .cap-card, .team-card, .net-card { padding: 22px 20px; }
  .hero-copy .hero-actions .btn { width: 100%; }
  .dl-item { padding: 16px; }
  .partner { width: 132px; height: 74px; }
}

/* ==========================================================================
   31. 产品二级详情页（product.html?m=型号）
   ========================================================================== */
.pd-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}
.pd-grid--empty { display: block; }

/* 图集：桌面端随页面滚动吸附，方便对照右侧参数 */
.pd-gallery { position: sticky; top: calc(var(--header-h) + 24px); }
.pd-main {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1 / 1;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.pd-main img { width: 100%; height: 100%; object-fit: contain; padding: 30px; }
.pd-main--ph { flex-direction: column; gap: 10px; background: var(--bg-soft); border-style: dashed; }
.pd-main--ph span { font-size: 26px; font-weight: 700; color: var(--ink-3); letter-spacing: .04em; }
.pd-main--ph em { font-size: 13px; font-style: normal; color: var(--muted); }

.pd-thumbs { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 16px; }
.pd-thumbs button {
  width: 88px;
  height: 88px;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all .2s var(--ease);
}
.pd-thumbs button:hover { border-color: var(--ink-3); }
.pd-thumbs button.is-on { border-color: var(--brand); box-shadow: inset 0 0 0 1px var(--brand); }
.pd-thumbs img { width: 100%; height: 100%; object-fit: contain; }

.pd-info { padding-top: 4px; }
.pd-head { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; }
.pd-head .badge { position: static; }
.pd-name { margin: 0 0 8px; font-size: 30px; line-height: 1.25; }
.pd-en { font-size: 13px; color: var(--muted); letter-spacing: .03em; margin-bottom: 20px; }
.pd-info .spec-table { margin-top: 22px; }
.pd-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 4px 0 14px; }
.pd-info .form-note { font-size: 12.5px; color: var(--muted); }

@media (max-width: 1024px) {
  .pd-grid { grid-template-columns: 1fr; gap: 30px; }
  .pd-gallery { position: static; }
  .pd-main { max-width: 560px; }
}
@media (max-width: 768px) {
  .pd-name { font-size: 24px; }
  .pd-main img { padding: 20px; }
  .pd-thumbs button { width: 72px; height: 72px; padding: 6px; }
  .pd-actions .btn { flex: 1 1 auto; justify-content: center; }
}
@media (max-width: 480px) {
  .pd-thumbs button { width: 62px; height: 62px; }
  .pd-main--ph span { font-size: 20px; }
}