/* ==========================================================================
   品美电线 · PINMEI WIRE — 官网样式
   纯手写 CSS，无框架、无外部依赖，可直接部署到 nginx
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --ink: #0b1b16;
  --ink-2: #12271f;
  --ink-3: #1d332b;
  --brand: #1b7a52;
  --brand-deep: #12543a;
  --brand-bright: #2fa36b;
  --brand-tint: #e9f4ee;
  --accent: #d8503f;
  --white: #ffffff;
  --bg: #ffffff;
  --bg-soft: #f3f6f2;
  --bg-mist: #f8faf7;
  --line: #e2e8e2;
  --line-strong: #cfd8d1;
  --muted: #5a6862;
  --muted-2: #8a968f;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
    "Noto Sans CJK SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;

  --container: 1200px;
  --gutter: clamp(20px, 4vw, 40px);
  --space-section: clamp(64px, 8.5vw, 128px);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(11, 27, 22, 0.04), 0 8px 24px rgba(11, 27, 22, 0.05);
  --shadow-md: 0 2px 6px rgba(11, 27, 22, 0.05), 0 24px 48px rgba(11, 27, 22, 0.1);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.is-locked {
  overflow: hidden;
}

img,
svg,
video {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
figure,
blockquote {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

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

:focus-visible {
  outline: 2px solid var(--brand-bright);
  outline-offset: 3px;
}

/* ---------- 3. 版式工具 ---------- */
.container {
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto;
}

.container--wide {
  width: min(100% - (var(--gutter) * 2), 1440px);
}

.section {
  padding-block: var(--space-section);
}

.section--soft {
  background: var(--bg-soft);
}

.section--mist {
  background: var(--bg-mist);
}

.section--dark {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.82);
}

.section--tight {
  padding-block: clamp(40px, 5vw, 72px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--brand);
  font-weight: 600;
  margin-bottom: 20px;
}

.eyebrow::before {
  content: "";
  width: 3px;
  height: 15px;
  background: var(--brand);
  border-radius: 2px;
}

.section--dark .eyebrow {
  color: var(--brand-bright);
}

.section--dark .eyebrow::before {
  background: var(--brand-bright);
}

.display {
  font-size: clamp(2.1rem, 4.4vw, 3.4rem);
  line-height: 1.16;
  letter-spacing: -0.015em;
  font-weight: 700;
  color: var(--ink);
  text-wrap: balance;
}

.section--dark .display {
  color: #fff;
}

.h3 {
  font-size: clamp(1.15rem, 1.6vw, 1.35rem);
  line-height: 1.45;
  font-weight: 650;
  letter-spacing: 0.005em;
}

.lead {
  font-size: clamp(1rem, 1.25vw, 1.075rem);
  line-height: 1.85;
  color: var(--muted);
  max-width: 68ch;
}

.section--dark .lead {
  color: rgba(255, 255, 255, 0.66);
}

.text-brand {
  color: var(--brand);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: clamp(36px, 5vw, 64px);
}

.section-head__text {
  max-width: 720px;
}

.section-head .lead {
  margin-top: 16px;
}

.section-head__link {
  flex: none;
}

/* ---------- 4. 按钮 ---------- */
.btn {
  --btn-bg: var(--brand);
  --btn-fg: #fff;
  --btn-border: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border: 1px solid var(--btn-border);
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.2;
  transition: transform 0.35s var(--ease), background-color 0.25s,
    border-color 0.25s, color 0.25s, box-shadow 0.35s;
  will-change: transform;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(27, 122, 82, 0.24);
}

.btn svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s var(--ease);
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: #fff;
  --btn-border: rgba(255, 255, 255, 0.4);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  box-shadow: none;
}

.btn--outline {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  --btn-border: var(--line-strong);
}

.btn--outline:hover {
  --btn-bg: var(--ink);
  --btn-fg: #fff;
  --btn-border: var(--ink);
  box-shadow: none;
}

.btn--tint {
  --btn-bg: var(--brand-tint);
  --btn-fg: var(--brand-deep);
  --btn-border: rgba(27, 122, 82, 0.22);
}

.btn--tint:hover {
  --btn-bg: var(--brand);
  --btn-fg: #fff;
  --btn-border: var(--brand);
  box-shadow: 0 10px 26px rgba(27, 122, 82, 0.22);
}

.btn--light {
  --btn-bg: #fff;
  --btn-fg: var(--ink);
}

.btn--sm {
  padding: 10px 18px;
  font-size: 14px;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand);
  letter-spacing: 0.02em;
}

.link-arrow svg {
  width: 15px;
  height: 15px;
  transition: transform 0.3s var(--ease);
}

.link-arrow:hover svg {
  transform: translateX(4px);
}

/* ---------- 5. 页头导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, box-shadow 0.3s;
}

/* 用伪元素做毛玻璃，避免 backdrop-filter 让页头成为 fixed 子元素的包含块 */
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
}

.site-header.is-scrolled,
.site-header:not(.is-over-hero),
body.nav-open .site-header {
  border-bottom-color: var(--line);
}

.site-header.is-scrolled {
  box-shadow: 0 10px 30px rgba(11, 27, 22, 0.06);
}

.site-header.is-scrolled::before,
.site-header:not(.is-over-hero)::before,
body.nav-open .site-header::before {
  opacity: 1;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

/* 顶部透明时，加一层自上而下的暗色渐变，保证白字在任何底图上都清楚 */
body:not(.nav-open) .site-header.is-over-hero:not(.is-scrolled) {
  background: linear-gradient(180deg, rgba(6, 16, 12, 0.62) 0%, rgba(6, 16, 12, 0.28) 62%, rgba(6, 16, 12, 0) 100%);
}

/* 顶栏处于 hero 之上（未滚动且菜单关闭）时，文字与按钮反白 */
body:not(.nav-open) .site-header.is-over-hero:not(.is-scrolled) .brand__cn,
body:not(.nav-open) .site-header.is-over-hero:not(.is-scrolled) .header-phone strong {
  color: #fff;
}

body:not(.nav-open) .site-header.is-over-hero:not(.is-scrolled) .header-phone small {
  color: rgba(255, 255, 255, 0.62);
}

body:not(.nav-open) .site-header.is-over-hero:not(.is-scrolled) .nav__link {
  color: rgba(255, 255, 255, 0.84);
}

body:not(.nav-open) .site-header.is-over-hero:not(.is-scrolled) .nav__link:hover,
body:not(.nav-open) .site-header.is-over-hero:not(.is-scrolled) .nav__link[aria-current="page"] {
  color: #fff;
}

body:not(.nav-open) .site-header.is-over-hero:not(.is-scrolled) .nav-toggle {
  border-color: rgba(255, 255, 255, 0.38);
}

body:not(.nav-open) .site-header.is-over-hero:not(.is-scrolled) .nav-toggle span,
body:not(.nav-open) .site-header.is-over-hero:not(.is-scrolled) .nav-toggle span::before,
body:not(.nav-open) .site-header.is-over-hero:not(.is-scrolled) .nav-toggle span::after {
  background: #fff;
}

.brand__mark {
  width: 44px;
  height: 44px;
  flex: none;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand__cn {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink);
}

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

.nav__link {
  position: relative;
  display: inline-block;
  padding: 10px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-3);
  letter-spacing: 0.02em;
  border-radius: 8px;
  transition: color 0.2s, background-color 0.2s;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.nav__link:hover {
  color: var(--brand);
}

.nav__link:hover::after,
.nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav__link[aria-current="page"] {
  color: var(--brand);
  font-weight: 600;
}

.nav__cta {
  display: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: none;
}

.header-phone {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  text-align: right;
}

.header-phone small {
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--muted-2);
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.header-phone strong {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--line);
  align-items: center;
  justify-content: center;
}

.nav-toggle span {
  position: relative;
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), background-color 0.2s;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), top 0.3s var(--ease);
}

.nav-toggle span::before {
  top: -6px;
}

.nav-toggle span::after {
  top: 6px;
}

body.nav-open .nav-toggle span {
  background: transparent;
}

body.nav-open .nav-toggle span::before {
  top: 0;
  transform: rotate(45deg);
}

body.nav-open .nav-toggle span::after {
  top: 0;
  transform: rotate(-45deg);
}

@media (max-width: 1080px) {
  .header-phone {
    display: none;
  }
}

@media (max-width: 900px) {
  .site-header {
    z-index: 96;
  }

  .header-actions {
    position: relative;
    /* 高于抽屉，汉堡按钮始终可点 */
    z-index: 97;
  }

  .brand {
    position: relative;
    /* 低于抽屉，展开时被菜单盖住 */
    z-index: 1;
  }



  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: 88vw;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 96px 24px 40px;
    background: #fff;
    border-left: 1px solid var(--line);
    transform: translateX(102%);
    transition: transform 0.4s var(--ease);
    overflow-y: auto;
    /* 高于品牌区：展开时把 logo 盖住 */
    z-index: 96;
  }



  body.nav-open .nav {
    transform: none;
    box-shadow: -30px 0 60px rgba(11, 27, 22, 0.16);
  }


  .nav__link {
    padding: 16px 8px;
    font-size: 17px;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
  }

  .nav__link::after {
    display: none;
  }

  .nav__link[aria-current="page"] {
    color: var(--brand);
  }

  .nav__cta {
    display: block;
    margin-top: 24px;
    padding: 0;
    border: 0;
  }

  .nav__cta .btn {
    width: 100%;
  }

  .header-actions .btn {
    display: none;
  }
}

.nav-scrim {
  position: fixed;
  inset: 0;
  background: rgba(11, 27, 22, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s, visibility 0.35s;
  z-index: 94;
}

body.nav-open .nav-scrim {
  opacity: 1;
  visibility: visible;
}

/* ---------- 7. 首页主视觉 ---------- */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  margin-top: -76px;
  min-height: min(100vh, 840px);
  min-height: min(100svh, 840px);
  padding-top: 172px;
  color: #fff;
  overflow: hidden;
  background: var(--ink);
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 55%;
  transform: scale(1.02);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
      180deg,
      rgba(8, 20, 16, 0.72) 0%,
      rgba(8, 20, 16, 0.35) 38%,
      rgba(8, 20, 16, 0.78) 100%
    ),
    linear-gradient(90deg, rgba(8, 20, 16, 0.72) 0%, rgba(8, 20, 16, 0.08) 70%);
}

.hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-bottom: clamp(28px, 3.6vw, 44px);
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 13.5px;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 26px;
}

.hero__eyebrow::before {
  content: "";
  width: 3px;
  height: 16px;
  background: var(--brand-bright);
  border-radius: 2px;
}

.hero h1 {
  font-size: clamp(2.35rem, 5.4vw, 4.15rem);
  line-height: 1.14;
  font-weight: 700;
  letter-spacing: -0.01em;
  max-width: 20ch;
  text-wrap: balance;
}

.hero h1 em {
  font-style: normal;
  color: #7fd3a8;
}

.hero__sub {
  margin-top: 18px;
  max-width: 54ch;
  font-size: clamp(0.98rem, 1.35vw, 1.1rem);
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.76);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.hero__facts {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.26);
}

.hero__facts-wrap {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero__fact {
  padding: 22px clamp(12px, 2vw, 28px) 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.16);
}

.hero__fact:first-child {
  padding-left: 0;
}

.hero__fact:last-child {
  padding-right: 0;
}

.hero__fact:last-child {
  border-right: 0;
}

.hero__fact b {
  display: block;
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  color: #fff;
  white-space: nowrap;
}

.hero__fact b span {
  display: inline;
}

.hero__fact b small {
  font-size: 0.55em;
  font-weight: 600;
  margin-left: 2px;
  color: #7fd3a8;
}

.hero__fact > span {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.62);
}

@media (max-width: 900px) {
  .hero {
    min-height: min(calc(100vh - 96px), 720px);
    min-height: min(calc(100svh - 96px), 720px);
    padding-top: 84px;
  }

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

  .hero__fact:nth-child(2) {
    border-right: 0;
  }

  .hero__fact:nth-child(-n + 2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }
}

/* 矮屏笔记本：进一步压缩主视觉内部间距，保证四个数据完整可见 */
@media (min-width: 901px) and (max-height: 800px) {
  .hero {
    padding-top: 64px;
  }

  .hero__sub {
    margin-top: 14px;
  }

  .hero__actions {
    margin-top: 20px;
  }
}

@media (max-width: 640px) {
  .hero::before {
    background: linear-gradient(
      180deg,
      rgba(8, 20, 16, 0.8) 0%,
      rgba(8, 20, 16, 0.62) 38%,
      rgba(8, 20, 16, 0.9) 100%
    );
  }
}

@media (max-width: 520px) {
  .hero__fact {
    padding: 20px 16px;
  }

  .hero__fact b {
    font-size: 1.45rem;
  }

  .hero__fact span {
    font-size: 12px;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .cta__actions {
    width: 100%;
    flex-direction: column;
  }

  .cta__actions .btn {
    width: 100%;
  }
}

/* ---------- 8. 内页页头 ---------- */
.page-hero {
  position: relative;
  margin-top: -76px;
  min-height: min(100vh, 840px);
  min-height: min(100svh, 840px);
  padding-top: clamp(150px, 15vw, 210px);
  padding-bottom: clamp(56px, 7vw, 88px);
  background: var(--ink);
  color: #fff;
  overflow: hidden;
}

.page-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
      180deg,
      rgba(8, 20, 16, 0.72) 0%,
      rgba(8, 20, 16, 0.35) 38%,
      rgba(8, 20, 16, 0.78) 100%
    ),
    linear-gradient(90deg, rgba(8, 20, 16, 0.72) 0%, rgba(8, 20, 16, 0.08) 70%);
}

.page-hero__inner {
  position: relative;
  z-index: 2;
}

.page-hero h1 {
  font-size: clamp(2.1rem, 4.6vw, 3.5rem);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.01em;
  max-width: 18ch;
  text-wrap: balance;
}

.page-hero p {
  margin-top: 20px;
  max-width: 62ch;
  color: rgba(255, 255, 255, 0.68);
  font-size: 1.02rem;
  line-height: 1.85;
}

.page-hero .eyebrow {
  color: var(--brand-bright);
}


/* ---------- 9. 优势条目 ---------- */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0 clamp(28px, 4vw, 56px);
}

.adv {
  position: relative;
  padding: clamp(24px, 3vw, 34px) 0;
  border-top: 1px solid var(--line);
  background: transparent;
}

.adv__no {
  font-size: 15px;
  letter-spacing: 0.14em;
  color: var(--muted-2);
  font-weight: 600;
  margin-bottom: 20px;
  transition: color 0.3s;
}

.adv:hover .adv__no {
  color: var(--brand);
}

.adv__icon {
  width: 34px;
  height: 34px;
  margin-bottom: 18px;
  color: var(--brand);
}

.adv h3 {
  font-size: 1.15rem;
  font-weight: 650;
  letter-spacing: 0.01em;
  margin-bottom: 10px;
}

.adv p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

@media (max-width: 900px) {
  .adv-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

@media (max-width: 700px) {
  .adv-grid--2 {
    grid-template-columns: 1fr;
  }
}

/* 手机端优势条目改为横向排布，减少页面长度 */
@media (max-width: 600px) {
  .adv-grid,
  .adv-grid--2 {
    grid-template-columns: 1fr;
  }

  .adv {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    column-gap: 14px;
    align-items: start;
    padding: 20px 0;
  }

  .adv__no {
    grid-column: 1 / -1;
    margin-bottom: 12px;
  }

  .adv__icon {
    grid-row: 2 / span 2;
    width: 30px;
    height: 30px;
    margin: 2px 0 0;
  }

  .adv h3 {
    grid-column: 2;
    font-size: 1.02rem;
    margin-bottom: 4px;
  }

  .adv p {
    grid-column: 2;
    font-size: 13.5px;
    line-height: 1.7;
  }
}

@media (max-width: 560px) {
  .adv-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- 10. 产品卡片 ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2vw, 28px);
}

.pcard {
  position: relative;
  display: flex;
  flex-direction: column;
  background: transparent;
  border: 0;
  border-radius: 0;
  overflow: visible;
}

.pcard__media {
  position: relative;
  aspect-ratio: 4 / 3;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
}

.pcard__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}

.pcard:hover .pcard__media img {
  transform: scale(1.05);
}

.pcard__body {
  padding: 18px 0 2px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.pcard__body h3 {
  font-size: 1.08rem;
  font-weight: 650;
  letter-spacing: 0.01em;
  transition: color 0.25s;
}

.pcard:hover .pcard__body h3 {
  color: var(--brand);
}

.pcard__body .models {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--brand);
}

.pcard__body p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

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

@media (max-width: 980px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .product-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- 11. 数据条 ---------- */
.stat-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stat {
  padding: clamp(26px, 3.5vw, 44px) clamp(18px, 2.4vw, 32px);
  border-right: 1px solid var(--line);
}

.stat:last-child {
  border-right: 0;
}

.stat b {
  display: block;
  font-size: clamp(1.9rem, 3.4vw, 2.9rem);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

.stat b small {
  font-size: 0.48em;
  font-weight: 600;
  color: var(--brand);
  margin-left: 4px;
  letter-spacing: 0.02em;
}

.stat span {
  display: block;
  margin-top: 12px;
  font-size: 13.5px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

@media (max-width: 800px) {
  .stat-band {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat:nth-child(2) {
    border-right: 0;
  }

  .stat:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }
}

/* ---------- 12. 图文分栏 ---------- */
.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(32px, 6vw, 88px);
  align-items: center;
}

.split > * {
  min-width: 0;
}

.split--media-right .split__media {
  order: 2;
}

.split__media {
  position: relative;
}

.split__media img {
  width: 100%;
  border-radius: var(--radius);
  object-fit: cover;
}

.split__media--tall img {
  aspect-ratio: 4 / 5;
}

.split__body .display {
  margin-bottom: 24px;
}

.split__body p + p {
  margin-top: 18px;
}

.split__list {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.split__list li {
  display: flex;
  gap: 12px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.split__list svg {
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  color: var(--brand);
}

@media (max-width: 860px) {
  .split {
    grid-template-columns: minmax(0, 1fr);
  }

  .split--media-right .split__media {
    order: 0;
  }
}

/* ---------- 13. 图片墙 ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.gallery figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  aspect-ratio: 4 / 3;
  cursor: zoom-in;
}

.gallery figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}

.gallery figure:hover img {
  transform: scale(1.05);
}

.gallery figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 26px 14px 12px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: #fff;
  background: linear-gradient(180deg, transparent, rgba(8, 20, 16, 0.75));
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.35s, transform 0.35s;
}

.gallery figure:hover figcaption {
  opacity: 1;
  transform: none;
}

.gallery .span-2 {
  grid-column: span 2;
  aspect-ratio: 8 / 3;
}

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

@media (max-width: 900px) {
  .gallery {
    grid-template-columns: repeat(2, 1fr);
  }

  .gallery .span-2 {
    grid-column: span 2;
    aspect-ratio: 16 / 9;
  }
}

/* ---------- 14. 认证 ---------- */
.cert-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.cert-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  font-size: 13.5px;
  letter-spacing: 0.03em;
  color: var(--ink-3);
  transition: border-color 0.25s, color 0.25s, transform 0.3s var(--ease);
}

.cert-chip:hover {
  border-color: var(--brand);
  color: var(--brand);
  transform: translateY(-2px);
}

.cert-chip b {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--brand);
  padding: 2px 7px;
  background: var(--brand-tint);
  border-radius: 4px;
  font-weight: 600;
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2vw, 24px);
}

.cert-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.cert-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.cert-card__media {
  position: relative;
  aspect-ratio: 4 / 5;
  background: linear-gradient(180deg, #eef2ee, #e7ece7);
  overflow: hidden;
  cursor: zoom-in;
  padding: 16px 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cert-card__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #fff;
  box-shadow: 0 8px 22px rgba(11, 27, 22, 0.14), 0 1px 3px rgba(11, 27, 22, 0.1);
  transition: transform 0.6s var(--ease), box-shadow 0.4s;
}

.cert-card:hover .cert-card__media img {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(11, 27, 22, 0.2);
}

.cert-card__body {
  padding: 16px 20px 18px;
}

.cert-card__body h3 {
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.45;
}

@media (max-width: 980px) {
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .cert-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- 15. 时间轴 ---------- */
.timeline {
  position: relative;
  display: grid;
  gap: 0;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 96px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--line);
}

.tl-item {
  position: relative;
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 32px;
  padding: 26px 0;
}

.tl-item::before {
  content: "";
  position: absolute;
  left: 92px;
  top: 36px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--line-strong);
  transition: border-color 0.3s, background-color 0.3s;
}

.tl-item:hover::before {
  border-color: var(--brand);
  background: var(--brand);
}

.tl-year {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.tl-body h3 {
  font-size: 1.02rem;
  font-weight: 650;
  margin-bottom: 4px;
}

.tl-body p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

@media (max-width: 640px) {
  .timeline::before {
    left: 66px;
  }

  .tl-item {
    grid-template-columns: 66px 1fr;
    gap: 20px;
  }

  .tl-item::before {
    left: 62px;
  }

  .tl-year {
    font-size: 16px;
  }
}

/* ---------- 16. 流程 / 制程 ---------- */
.flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  counter-reset: flow;
}

.flow__step {
  position: relative;
  padding: 24px 20px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  counter-increment: flow;
  transition: border-color 0.3s, transform 0.4s var(--ease);
}

.flow__step:hover {
  border-color: var(--brand);
  transform: translateY(-3px);
}

.flow__step::before {
  content: counter(flow, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--brand);
  display: block;
  margin-bottom: 14px;
}

.flow__step h4 {
  font-size: 15px;
  font-weight: 650;
  margin-bottom: 4px;
}

.flow__step p {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.6;
}

@media (max-width: 1000px) {
  .flow {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 640px) {
  .flow {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- 17. 检验工序列表 ---------- */
.check-groups {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0 clamp(24px, 4vw, 48px);
}

.check-group {
  background: transparent;
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
  padding: clamp(22px, 3vw, 30px) 0;
}

.check-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.check-group__head b {
  font-size: 22px;
  font-weight: 600;
  color: var(--brand);
  line-height: 1;
}

.check-group__head h3 {
  font-size: 1.05rem;
  font-weight: 650;
  margin-left: auto;
}

.check-group ol {
  counter-reset: check;
  display: grid;
  gap: 10px;
}

.check-group li {
  counter-increment: check;
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

.check-group li::before {
  content: counter(check, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted-2);
  padding-top: 3px;
  flex: none;
}

@media (max-width: 980px) {
  .check-groups {
    grid-template-columns: 1fr;
  }
}

/* ---------- 产品目录（左侧分类 + 型号网格） ---------- */
.catalog {
  padding-block: clamp(40px, 5vw, 68px) clamp(64px, 8vw, 104px);
}

.catalog__inner {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: start;
}

.catalog__side {
  position: sticky;
  top: 88px;
  max-height: calc(100vh - 96px);
  overflow-y: auto;
  padding-right: 4px;
  scrollbar-width: thin;
}

.catalog__main,
.catalog__side {
  min-width: 0;
}

.catalog__side-title {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted-2);
  margin-bottom: 12px;
}

.side-nav {
  display: grid;
}

.side-nav__link {
  padding: 8px 0;
  font-size: 15px;
  color: var(--ink-2);
  border-bottom: 1px solid var(--line);
  transition: color 0.2s;
}

.side-nav__link:hover,
.side-nav__link.is-active {
  color: var(--brand);
}

.side-nav__link.is-active {
  font-weight: 600;
}

.side-nav__sub {
  display: grid;
  padding: 8px 0 10px 12px;
  border-bottom: 1px solid var(--line);
}

.side-nav__sub a {
  padding: 3px 0;
  font-size: 13px;
  color: var(--muted);
  transition: color 0.2s;
}

.side-nav__sub a:hover {
  color: var(--brand);
}

.cat {
  scroll-margin-top: 96px;
  margin-bottom: clamp(48px, 6vw, 76px);
}

.cat:last-child {
  margin-bottom: 0;
}

.cat__label {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--brand);
  margin-bottom: 22px;
}

.cat__label::before {
  content: "";
  width: 3px;
  height: 14px;
  background: var(--brand);
  border-radius: 2px;
  align-self: center;
}

.cat__label span {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--muted-2);
}

.cat__sub {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin: 32px 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 96px;
}

.cat__sub:first-of-type {
  margin-top: 0;
}

.cat__sub span {
  font-size: 12px;
  font-weight: 400;
  color: var(--muted-2);
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(14px, 1.6vw, 22px);
}

.model-card {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.model-card__media {
  aspect-ratio: 16 / 9;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  cursor: zoom-in;
}

.model-card__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.6s var(--ease);
}

.model-card__media:hover img {
  transform: scale(1.05);
}

.model-card__media--empty {
  background: #f7f9f6;
  border-style: dashed;
  border-color: #cdd8d0;
  cursor: default;
  padding: 0;
}

.model-card figcaption {
  display: grid;
  gap: 3px;
}

.model-card figcaption b {
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.02em;
}

.model-card figcaption span {
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}

@media (max-width: 900px) {
  .catalog__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

  .catalog__side {
    position: static;
  }

  .catalog__side-title {
    display: none;
  }

  .side-nav {
    display: flex;
    gap: 6px;
    max-width: 100%;
    overflow-x: auto;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--line);
    scrollbar-width: none;
  }

  .side-nav::-webkit-scrollbar {
    display: none;
  }

  .side-nav__link {
    flex: none;
    padding: 7px 14px;
    border: 0;
    border-radius: 999px;
    background: var(--brand-tint);
    font-size: 13.5px;
    white-space: nowrap;
  }

  .side-nav__sub {
    display: none;
  }
}

@media (max-width: 560px) {
  .model-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 内页页头带数据条 ---------- */
.page-hero--facts {
  display: flex;
  flex-direction: column;
  padding-bottom: 0;
}

.page-hero--facts .page-hero__inner {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-bottom: clamp(40px, 6vw, 68px);
}

.page-hero--facts .hero__facts-wrap {
  padding-bottom: clamp(6px, 1vw, 14px);
}

/* ---------- 证书展示 ---------- */
.cert-showcase__head {
  max-width: 760px;
  margin: 0 auto clamp(36px, 5vw, 60px);
  text-align: center;
}

.cert-showcase__head .eyebrow {
  justify-content: center;
}

.cert-showcase__head h2 {
  margin-top: 14px;
}

.cert-showcase__head p {
  margin-top: 14px;
  color: var(--muted);
  font-size: clamp(0.98rem, 1.3vw, 1.08rem);
}

.cert-fan {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 6px 0 4px;
}

.cert-fan__item {
  flex: 0 0 auto;
  width: clamp(112px, 11.5vw, 168px);
  margin-left: clamp(-42px, -2.6vw, -22px);
  border-radius: 6px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 12px 32px rgba(11, 27, 22, 0.16);
  transform: rotate(var(--tilt, 0deg));
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease);
}

.cert-fan__item:first-child {
  margin-left: 0;
}

.cert-fan__item:nth-child(odd) {
  --tilt: -1.8deg;
}

.cert-fan__item:nth-child(even) {
  --tilt: 1.8deg;
}

.cert-fan__item:hover {
  position: relative;
  z-index: 3;
  transform: translateY(-10px) rotate(0deg);
  box-shadow: 0 24px 56px rgba(11, 27, 22, 0.26);
}

.cert-fan__item img {
  display: block;
  width: 100%;
  height: auto;
  cursor: zoom-in;
}

.cert-marks {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: clamp(36px, 5vw, 56px);
}

@media (max-width: 760px) {
  .cert-fan {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  .cert-fan__item {
    width: auto;
    margin-left: 0;
    transform: none;
  }

  .cert-fan__item:hover {
    transform: translateY(-4px);
  }
}

/* ---------- 18. 表格 ---------- */
.table-wrap {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  -webkit-overflow-scrolling: touch;
}

table.spec {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  font-size: 13.5px;
}

/* 键值型表格（两列/三列短表）在窄屏不需要横向滚动 */
table.spec.spec--kv {
  min-width: 0;
}

@media (max-width: 560px) {
  table.spec.spec--kv {
    font-size: 12.5px;
  }

  table.spec.spec--kv th,
  table.spec.spec--kv td {
    padding: 10px 12px;
  }
}

table.spec caption {
  caption-side: top;
  text-align: left;
  padding: 18px 22px;
  font-weight: 650;
  font-size: 14px;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  background: var(--bg-mist);
}

table.spec th,
table.spec td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}

table.spec thead th {
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-2);
  font-weight: 600;
  background: var(--bg-mist);
  border-bottom: 1px solid var(--line-strong);
  white-space: nowrap;
}

table.spec tbody tr:hover {
  background: var(--bg-mist);
}

table.spec tbody tr:last-child td {
  border-bottom: 0;
}

table.spec td.model {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--brand);
  font-weight: 600;
  white-space: nowrap;
}

table.spec td.num {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

table.spec .muted {
  color: var(--muted);
}

/* ---------- 19. 图集 / 产品分类大卡 ---------- */
.cat-block {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  padding-block: clamp(40px, 6vw, 72px);
  border-top: 1px solid var(--line);
}

.cat-block:first-of-type {
  border-top: 0;
}

.cat-block__media {
  position: relative;
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fbfcfb, #f2f5f1);
  border: 1px solid var(--line);
  overflow: hidden;
  aspect-ratio: 5 / 4;
}

.cat-block__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: clamp(16px, 3vw, 40px);
}

.cat-block__tag {
  position: absolute;
  top: 16px;
  left: 16px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(27, 122, 82, 0.18);
  border-radius: 999px;
  padding: 5px 11px;
}

.cat-block__body h2 {
  font-size: clamp(1.5rem, 2.6vw, 2.05rem);
  line-height: 1.28;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}

.cat-block__body > p {
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.8;
  max-width: 56ch;
}

.spec-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 24px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.spec-list div {
  background: #fff;
  padding: 12px 16px;
}

.spec-list dt {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted-2);
  text-transform: uppercase;
  margin-bottom: 3px;
}

.spec-list dd {
  margin: 0;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-2);
  line-height: 1.5;
}

@media (max-width: 860px) {
  .cat-block {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .cat-block__media {
    aspect-ratio: 16 / 10;
  }
}

@media (max-width: 520px) {
  .spec-list {
    grid-template-columns: 1fr;
  }
}

/* ---------- 19b. 区域产品卡 ---------- */
.region-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 24px);
}

.region-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.4s var(--ease), border-color 0.3s;
}

.region-card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-sm);
}

.region-card__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 22px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-mist);
  border-left: 3px solid var(--brand);
}

.region-card__head h3 {
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: 0.01em;
}

.region-card__head .region-cert {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--brand);
  white-space: nowrap;
}

.region-card__media {
  aspect-ratio: 16 / 9;
  background: linear-gradient(180deg, #fbfcfb, #f3f6f2);
  border-bottom: 1px solid var(--line);
}

.region-card__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 20px clamp(16px, 2vw, 28px);
}

.region-card__body {
  padding: 20px 22px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.region-card__models {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--brand);
  margin-bottom: 12px;
}

.region-specs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 18px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.region-specs dt {
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 2px;
}

.region-specs dd {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-2);
  font-weight: 500;
}

@media (max-width: 860px) {
  .region-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- 19c. 系列图集（标签置于图下） ---------- */
.gallery--labeled figure {
  display: flex;
  flex-direction: column;
  aspect-ratio: auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: zoom-in;
  transition: border-color 0.3s, box-shadow 0.4s var(--ease);
}

.gallery--labeled figure:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-sm);
}

.gallery--labeled figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  padding: 14px;
  background: linear-gradient(180deg, #fbfcfb, #f4f7f3);
  transform: none;
}

.gallery--labeled figure:hover img {
  transform: none;
}

.gallery--labeled figcaption {
  position: static;
  opacity: 1;
  transform: none;
  padding: 11px 14px;
  background: #fff;
  border-top: 1px solid var(--line);
  color: var(--ink-2);
  font-size: 12px;
  letter-spacing: 0.05em;
}

/* ---------- 20. 灯箱 ---------- */.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 4vw, 48px);
  background: rgba(6, 16, 12, 0.92);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox img {
  max-width: 100%;
  max-height: 86vh;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.5);
}

.lightbox__close {
  position: absolute;
  top: 20px;
  right: 22px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  display: grid;
  place-items: center;
  transition: background-color 0.2s;
}

.lightbox__close:hover {
  background: rgba(255, 255, 255, 0.12);
}

.lightbox__close svg {
  width: 18px;
  height: 18px;
}

.lightbox__caption {
  position: absolute;
  bottom: 22px;
  left: 0;
  right: 0;
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  letter-spacing: 0.04em;
}

/* ---------- 21. CTA 区块 ---------- */
.cta {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: #fff;
}

.cta__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding-block: clamp(48px, 6vw, 84px);
}

.cta h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.6rem);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.01em;
  max-width: 20ch;
  text-wrap: balance;
}

.cta p {
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.62);
  max-width: 46ch;
  font-size: 15px;
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.cta::before {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47, 163, 107, 0.28), transparent 68%);
  pointer-events: none;
}

/* ---------- 22. 页脚 ---------- */
.site-footer {
  background: #08120e;
  color: rgba(255, 255, 255, 0.55);
  font-size: 14px;
  padding-top: clamp(56px, 7vw, 88px);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.35fr;
  gap: clamp(28px, 4vw, 56px);
  padding-bottom: clamp(40px, 5vw, 64px);
}

.site-footer .brand__cn {
  color: #fff;
}

.footer-about p {
  margin-top: 20px;
  line-height: 1.85;
  max-width: 34ch;
  color: rgba(255, 255, 255, 0.5);
}

.footer-slogan {
  margin-top: 18px !important;
  font-size: 14px;
  letter-spacing: 0.16em;
  color: var(--brand-bright);
  max-width: none !important;
}

.footer-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 20px;
}

.footer-title::before {
  content: "";
  width: 3px;
  height: 13px;
  background: var(--brand-bright);
  border-radius: 2px;
}

.footer-links {
  display: grid;
  gap: 11px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.55);
  transition: color 0.2s;
  font-size: 14px;
}

.footer-links a:hover {
  color: #fff;
}

.footer-contact {
  display: grid;
  gap: 16px;
}

.footer-contact li {
  display: flex;
  gap: 12px;
  line-height: 1.65;
}

.footer-contact svg {
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  color: var(--brand-bright);
}

.footer-contact strong {
  display: block;
  color: #fff;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.38);
}

.footer-bottom a:hover {
  color: #fff;
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-about {
    grid-column: span 2;
  }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-about {
    grid-column: auto;
  }
}

/* ---------- 23. 联系页 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}

.contact-cards {
  display: grid;
  gap: 0;
}

.contact-card {
  display: flex;
  gap: 18px;
  padding: 22px 0;
  background: transparent;
  border: 0;
  border-top: 1px solid var(--line);
  border-radius: 0;
}

.contact-card:last-child {
  border-bottom: 1px solid var(--line);
}

.contact-card__icon {
  flex: none;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--brand-tint);
  color: var(--brand);
}

.contact-card__icon svg {
  width: 19px;
  height: 19px;
}

.contact-card h3 {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted-2);
  text-transform: uppercase;
  font-family: var(--font-mono);
  margin-bottom: 6px;
  font-weight: 600;
}

.contact-card p,
.contact-card a {
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-2);
}

.contact-card a {
  font-weight: 600;
  letter-spacing: 0.02em;
}

.contact-card a:hover {
  color: var(--brand);
}

.contact-card small {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--muted-2);
}

.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(24px, 3.2vw, 40px);
}

.form-card h2 {
  font-size: clamp(1.35rem, 2vw, 1.65rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.form-card > p {
  font-size: 13.5px;
  color: var(--muted);
  margin-bottom: 26px;
}

.field {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.field label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-3);
  letter-spacing: 0.02em;
}

.field label span {
  color: var(--accent);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  font: inherit;
  font-size: 14.5px;
  color: var(--ink);
  background: var(--bg-mist);
  border: 1px solid var(--line);
  border-radius: 10px;
  transition: border-color 0.2s, background-color 0.2s;
}

.field textarea {
  min-height: 116px;
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--muted-2);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--brand);
  background: #fff;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-note {
  font-size: 12px;
  color: var(--muted-2);
  line-height: 1.6;
  margin-top: 14px;
}

.form-status {
  margin-top: 14px;
  font-size: 13px;
  color: var(--brand);
  min-height: 1.2em;
}

.form-status.is-error {
  color: var(--accent);
}

.btn:disabled {
  opacity: 0.6;
  cursor: default;
  transform: none;
  box-shadow: none;
}

@media (max-width: 860px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .field-row {
    grid-template-columns: 1fr;
  }
}

/* ---------- 24. 地图 / 厂区 ---------- */
.site-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}

.site-card__media {
  position: relative;
  min-height: 300px;
}

.site-card__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.site-card__body {
  padding: clamp(26px, 3.4vw, 44px);
}

.site-card__body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.site-card__body p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.site-card__body dl {
  margin: 20px 0 0;
  display: grid;
  gap: 10px;
  font-size: 13.5px;
}

.site-card__body dl div {
  display: grid;
  grid-template-columns: 68px 1fr;
  gap: 12px;
}

.site-card__body dt {
  color: var(--muted-2);
}

.site-card__body dd {
  margin: 0;
  color: var(--ink-2);
  font-weight: 500;
}

@media (max-width: 760px) {
  .site-card {
    grid-template-columns: 1fr;
  }

  .site-card__media {
    min-height: 220px;
  }
}


/* ---------- 25. 应用场景 ---------- */
.app-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0 clamp(20px, 3vw, 40px);
}

.app {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  background: transparent;
  transition: border-color 0.3s;
}

.app:hover {
  border-color: var(--brand);
}

.app svg {
  flex: none;
  width: 22px;
  height: 22px;
  color: var(--brand);
}

.app b {
  font-size: 14.5px;
  font-weight: 600;
  display: block;
  line-height: 1.3;
}

.app span {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--muted-2);
  text-transform: uppercase;
}

@media (max-width: 980px) {
  .app-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 640px) {
  .app-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- 26. 数字强调 / 引用 ---------- */
.pullquote {
  position: relative;
  padding: clamp(32px, 4vw, 52px);
  background: var(--ink);
  border-radius: var(--radius);
  color: #fff;
  overflow: hidden;
}

.pullquote::before {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47, 163, 107, 0.26), transparent 65%);
}

.pullquote p {
  position: relative;
  font-size: clamp(1.15rem, 2.1vw, 1.6rem);
  line-height: 1.6;
  font-weight: 500;
  letter-spacing: 0.01em;
  max-width: 32ch;
}

.pullquote cite {
  position: relative;
  display: block;
  margin-top: 22px;
  font-style: normal;
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.45);
  font-family: var(--font-mono);
  text-transform: uppercase;
}

/* ---------- 27. 三不妥协 ---------- */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0 clamp(24px, 4vw, 48px);
}

.pillar {
  padding: clamp(22px, 3vw, 30px) 0;
  border-top: 1px solid var(--line);
  background: transparent;
  position: relative;
}

.pillar::after {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 48px;
  height: 2px;
  background: var(--brand);
  transform: scaleX(0.4);
  transform-origin: left;
  transition: transform 0.5s var(--ease);
}

.pillar:hover::after {
  transform: scaleX(1);
}

.pillar b {
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--brand);
  display: block;
  margin-bottom: 14px;
  font-weight: 600;
}

.pillar h3 {
  font-size: 1.1rem;
  font-weight: 650;
  margin-bottom: 8px;
}

.pillar p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

@media (max-width: 900px) {
  .pillars {
    grid-template-columns: 1fr;
  }
}

/* ---------- 29. 入场动画 ---------- */
.reveal {
  opacity: 1;
  transform: none;
}

.js .reveal {
  opacity: 0;
  transform: translateY(20px);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

.js .reveal[data-delay="1"] {
  transition-delay: 0.08s;
}

.js .reveal[data-delay="2"] {
  transition-delay: 0.16s;
}

.js .reveal[data-delay="3"] {
  transition-delay: 0.24s;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none !important;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* ---------- 30. 辅助类 ---------- */
.mt-0 { margin-top: 0; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-40 { margin-top: 40px; }
.mb-0 { margin-bottom: 0; }
.center { text-align: center; }
.mx-auto { margin-inline: auto; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.divider {
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 0;
}
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 300;
  padding: 12px 20px;
  background: var(--brand);
  color: #fff;
  border-radius: 0 0 8px 0;
}
.skip-link:focus {
  left: 0;
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* 打印 */
@media print {
  .site-header,
  .site-footer,
  .cta,
  .lightbox {
    display: none !important;
  }

  body {
    color: #000;
  }

  .page-hero {
    background: #fff;
    color: #000;
    padding-top: 24px;
  }
}