:root {
  --navy: #071422;
  --navy-2: #0d2137;
  --steel: #1a3a5c;
  --accent: #1bb6e8;
  --accent-2: #0e8fb8;
  --copper: #d4a84b;
  --ckd-green: #009b64;
  --ckd-green-2: #007a4e;
  --text: #1c2430;
  --muted: #5b6675;
  --line: #dce3ec;
  --bg: #f3f6fa;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(7, 20, 34, 0.12);
  --radius: 14px;
  --header: 76px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

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

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

button,
input,
select,
textarea {
  font-family: inherit;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 8px;
}

#industries,
#customers {
  scroll-margin-top: calc(var(--header) + 18px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header);
  background: rgba(7, 20, 34, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
}

.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: linear-gradient(145deg, var(--accent), var(--steel));
  display: grid;
  place-items: center;
  font-weight: 800;
  letter-spacing: 1px;
  box-shadow: 0 0 0 1px rgba(27, 182, 232, 0.35);
  overflow: hidden;
}

.logo-mark.logo-img {
  border-radius: 6px;
  background: #fff;
  box-shadow: none;
}

.logo-mark.logo-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.logo strong {
  display: block;
  font-size: 16px;
  letter-spacing: 0.5px;
}

.logo span {
  display: block;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.55);
  font-weight: 400;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav a {
  color: rgba(255, 255, 255, 0.78);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
  transition: 0.2s ease;
}

.nav a:hover,
.nav a.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.phone {
  color: var(--copper);
  font-size: 13px;
  font-weight: 600;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  padding: 11px 22px;
  font-size: 14px;
  font-weight: 600;
  transition: 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: 0 8px 22px rgba(27, 182, 232, 0.28);
}

.btn-primary:hover {
  transform: translateY(-1px);
}

.btn-header {
  background: transparent;
  color: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: none;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
}

.btn-header:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
  transform: none;
}

.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-outline {
  background: #fff;
  color: var(--navy);
  border: 1px solid var(--line);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  border-radius: 10px;
  color: #fff;
  cursor: pointer;
}

/* Hero carousel */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--navy);
}

.carousel {
  position: relative;
  height: min(78vh, 680px);
}

.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.7s ease;
}

.slide.active {
  opacity: 1;
  pointer-events: auto;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85);
}

.slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 20, 34, 0.88) 0%, rgba(7, 20, 34, 0.45) 52%, rgba(7, 20, 34, 0.25) 100%),
    linear-gradient(180deg, rgba(7, 20, 34, 0.15), rgba(7, 20, 34, 0.55));
}

.slide-copy {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: #fff;
  max-width: 640px;
}

.eyebrow {
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.slide-copy h1,
.page-hero h1,
.section-title h2 {
  font-weight: 800;
  letter-spacing: 0.5px;
}

.slide-copy h1 {
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.2;
  margin-bottom: 16px;
}

.slide-copy p {
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 28px;
  font-size: 16px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.carousel-nav {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

.carousel-btn {
  pointer-events: auto;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(7, 20, 34, 0.35);
  color: #fff;
  cursor: pointer;
}

.carousel-btn.prev { left: 24px; }
.carousel-btn.next { right: 24px; }

.dots {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 4;
}

.dots button {
  width: 28px;
  height: 4px;
  border: 0;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
}

.dots button.active {
  background: var(--accent);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--navy-2);
  color: #fff;
}

.stat {
  padding: 28px 20px;
  text-align: center;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}

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

.stat b {
  display: block;
  font-size: 28px;
  color: var(--accent);
}

.stat span {
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
}

section {
  padding: 84px 0;
}

.section-title {
  margin-bottom: 36px;
}

.section-title p {
  color: var(--accent-2);
  font-size: 13px;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.section-title h2 {
  font-size: 32px;
}

.section-title .desc {
  margin-top: 10px;
  color: var(--muted);
  max-width: 640px;
}

.product-grid,
.case-grid,
.value-grid,
.news-grid {
  display: grid;
  gap: 22px;
}

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

.card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.7);
}

.product-card .thumb {
  height: 190px;
  overflow: hidden;
  position: relative;
  display: block;
}

.product-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover img {
  transform: scale(1.06);
}

.badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--copper);
  color: #1a1408;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
}

.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
}

.product-card .body {
  padding: 16px 20px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* 卡片左下角文字按钮「查看详情」 */
.detail-text-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--accent-2);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: none;
  border: 0;
  padding: 0;
  box-shadow: none;
  border-radius: 0;
}

.detail-text-btn::after {
  content: " →";
}

.product-card:hover .detail-text-btn {
  color: var(--navy);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.product-card h3 {
  font-size: 20px;
}

.en {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 8px;
}

.product-card ul {
  margin: 12px 0;
  padding-left: 18px;
  color: var(--muted);
  font-size: 13px;
}

.product-card h3 a:hover {
  color: var(--accent-2);
}

/* 卡片底部动作行：左「查看详情」胶囊 + 右「询价」按钮 */
.card-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  padding-top: 16px;
}

.card-actions .btn {
  flex: 0 0 auto;
  padding: 9px 12px;
  font-size: 13px;
  border-radius: 10px;
  box-shadow: none;
  white-space: nowrap;
  text-align: center;
}

.card-actions .btn-detail {
  background: var(--navy);
  color: #fff;
  border: 1px solid var(--navy);
}

.card-actions .btn-detail:hover {
  background: var(--steel);
  border-color: var(--steel);
}

.card-actions .btn-inquiry {
  background: #fff;
  color: var(--accent-2);
  border: 1px solid var(--line);
}

.card-actions .btn-inquiry:hover {
  border-color: var(--accent-2);
  background: #f3fafe;
  transform: translateY(-1px);
}

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.quick-links a {
  background: #fff;
  border: 1px solid var(--line);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
}

.quick-links a:hover {
  border-color: var(--accent);
  color: var(--accent-2);
}

.action-hint {
  margin: -14px 0 22px;
  font-size: 13px;
  color: var(--muted);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.filter-bar button {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
  color: var(--muted);
}

.filter-bar button.active {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}

.industries {
  background: #fff;
}

.industry-row {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.chips span {
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 13px;
}

.panel {
  background: var(--navy);
  color: #fff;
  border-radius: 20px;
  padding: 36px;
  min-height: 280px;
  background-image:
    radial-gradient(circle at 80% 20%, rgba(27, 182, 232, 0.25), transparent 40%),
    linear-gradient(160deg, #0d2137, #071422);
}

.panel h3 {
  font-size: 24px;
  margin-bottom: 12px;
}

.panel ol {
  padding-left: 18px;
  color: rgba(255, 255, 255, 0.75);
}

.value-grid {
  grid-template-columns: repeat(4, 1fr);
}

.value-item {
  background: #fff;
  padding: 24px;
  border-radius: var(--radius);
  border-top: 3px solid var(--accent);
}

.value-item h3 {
  margin: 8px 0 8px;
}

.value-item p {
  color: var(--muted);
  font-size: 14px;
}

.case-grid {
  grid-template-columns: repeat(4, 1fr);
}

.case-card {
  padding: 24px;
  min-height: 180px;
}

.case-card h3 {
  margin-bottom: 10px;
}

.news-grid {
  grid-template-columns: 1.4fr 1fr;
}

.news-main {
  min-height: 280px;
  background:
    linear-gradient(180deg, rgba(7, 20, 34, 0.1), rgba(7, 20, 34, 0.78)),
    url("https://images.unsplash.com/photo-1581092795360-fd1ca04f0952?auto=format&fit=crop&w=1400&q=80") center/cover;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
}

.news-side article {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.news-side time {
  color: var(--muted);
  font-size: 12px;
}

.ckd-band {
  background: #fff;
}

.ckd-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 32px;
  align-items: center;
}

.ckd-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 22px;
}

.ckd-band .section-title p {
  color: var(--ckd-green);
}

.ckd-badge {
  border: 1px solid rgba(0, 155, 100, 0.35);
  background: #f0faf5;
  color: var(--ckd-green-2);
  font-size: 12px;
  font-weight: 700;
  padding: 8px 12px;
  border-radius: 8px;
}

.ckd-mark {
  background: #fff;
  color: var(--text);
  border-radius: 20px;
  padding: 32px;
  min-height: 240px;
  border: 1px solid rgba(0, 155, 100, 0.18);
  box-shadow: var(--shadow);
}

.ckd-mark .brand {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: 3px;
  color: var(--ckd-green);
  line-height: 1;
}

.ckd-mark p {
  color: var(--muted);
  margin-top: 12px;
}

.select-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.select-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.select-link span {
  color: var(--muted);
  font-size: 13px;
}

.select-link em {
  font-style: normal;
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 600;
}

.select-link:hover {
  border-color: var(--accent);
}

/* ========== CKD 品牌按钮（用于 ckd.html 页面内） ========== */
.btn-ckd {
  background: linear-gradient(135deg, #00a86c, var(--ckd-green-2));
  color: #fff;
  box-shadow: 0 8px 22px rgba(0, 155, 100, 0.25);
}

.btn-ckd:hover {
  transform: translateY(-1px);
}

.btn-ckd-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.45);
}

.btn-ckd-ghost:hover {
  background: rgba(255, 255, 255, 0.16);
}

.btn-ckd-outline {
  background: #fff;
  color: var(--ckd-green-2);
  border: 1px solid rgba(0, 155, 100, 0.45);
  box-shadow: none;
}

.btn-ckd-outline:hover {
  border-color: var(--ckd-green);
  background: #f0faf5;
}

/* ========== NIKKIDENSO（喜开理日机电装）板块 ========== */
.nikki-band {
  background: var(--navy);
  color: #fff;
  background-image:
    radial-gradient(circle at 88% 18%, rgba(0, 155, 100, 0.30), transparent 42%),
    radial-gradient(circle at 6% 92%, rgba(0, 120, 78, 0.22), transparent 38%),
    linear-gradient(160deg, #0c2016, #07140d);
}

.nikki-band .section-title p {
  color: #7ddeb8;
}

.nikki-band .section-title h2 {
  color: #fff;
}

.nikki-band .section-title .desc {
  color: rgba(255, 255, 255, 0.68);
}

.nikki-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 34px;
  align-items: start;
}

.nikki-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 12px;
}

.nikki-head .brand {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: 1px;
  color: #fff;
  line-height: 1.1;
}

.nikki-head .tagline {
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
  border-left: 1px solid rgba(255, 255, 255, 0.2);
  padding-left: 14px;
}

.nikki-layout > div > p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 14.5px;
}

.nikki-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 26px 0;
}

.nikki-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 18px;
}

.nikki-card strong {
  display: block;
  color: #fff;
  margin-bottom: 6px;
}

.nikki-card span {
  color: rgba(255, 255, 255, 0.66);
  font-size: 13px;
}

.nikki-cta {
  background: linear-gradient(135deg, #00b374, var(--ckd-green-2));
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 26px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 14px 34px rgba(0, 155, 100, 0.35);
  transition: 0.2s ease;
}

.nikki-cta:hover {
  transform: translateY(-2px);
}

.nikki-sub {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.nikki-sub a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 13px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  padding: 6px 12px;
  border-radius: 999px;
  transition: 0.2s ease;
}

.nikki-sub a:hover {
  border-color: #7ddeb8;
  color: #fff;
}

.nikki-note {
  margin-top: 26px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  max-width: 760px;
}

.nikki-timeline {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 16px;
  padding: 24px;
}

.nikki-timeline li {
  list-style: none;
  padding: 9px 0 9px 18px;
  position: relative;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.nikki-timeline li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ckd-green);
}

.nikki-timeline b {
  color: #7ddeb8;
}

.client-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.client-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--line);
  min-height: 150px;
}

.client-card h3 {
  font-size: 18px;
}

.legal-note {
  margin-top: 16px;
  font-size: 12px;
  color: var(--muted);
}

.detail-grid {
  padding-top: 28px;
}

.detail-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  font-size: 13px;
  color: var(--muted);
}

.detail-crumb a {
  color: var(--accent-2);
  font-weight: 600;
}

.detail-crumb a:hover {
  text-decoration: underline;
}

.detail-main {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  align-items: start;
}

.detail-hero-card {
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow);
  background: #fff;
}

.detail-hero-card img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.detail-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.detail-chips span {
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--steel);
  font-weight: 600;
}

.detail-apps {
  margin-top: 22px;
}

.detail-apps h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.spec-list {
  margin-top: 16px;
  padding-left: 18px;
  color: var(--muted);
}

.detail-grid .eyebrow {
  color: var(--accent-2);
  font-weight: 700;
}

.detail-grid .hero-actions .btn {
  padding: 12px 24px;
  font-size: 15px;
  border-radius: 12px;
}

.detail-grid .hero-actions .btn-detail {
  background: var(--navy);
  color: #fff;
  border: 1px solid var(--navy);
  box-shadow: 0 10px 26px rgba(7, 20, 34, 0.22);
}

.detail-grid .hero-actions .btn-detail:hover {
  background: var(--steel);
  border-color: var(--steel);
  transform: translateY(-1px);
}

.detail-grid .hero-actions .btn-inquiry {
  background: #fff;
  color: var(--accent-2);
  border: 1px solid var(--line);
}

.detail-grid .hero-actions .btn-inquiry:hover {
  border-color: var(--accent-2);
  background: #f3fafe;
}

.detail-grid .hero-actions .btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.cta-band {
  background: linear-gradient(135deg, var(--steel), var(--navy));
  color: #fff;
}

.cta-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.page-hero {
  background:
    linear-gradient(90deg, rgba(7, 20, 34, 0.88), rgba(7, 20, 34, 0.45)),
    url("https://images.unsplash.com/photo-1504328345606-18bbc8c9d7d1?auto=format&fit=crop&w=1600&q=80") center/cover;
  color: #fff;
  padding: 72px 0 64px;
}

.ckd-hero {
  background:
    linear-gradient(90deg, rgba(0, 90, 58, 0.88), rgba(0, 122, 78, 0.45)),
    url("https://images.unsplash.com/photo-1504328345606-18bbc8c9d7d1?auto=format&fit=crop&w=1600&q=80") center/cover;
}

.ckd-hero .eyebrow {
  color: #7ddeb8;
}

.page-hero p {
  color: rgba(255, 255, 255, 0.75);
  max-width: 560px;
  margin-top: 10px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.brand-showcase {
  display: inline-flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.brand-showcase img {
  width: min(280px, 100%);
  height: auto;
  object-fit: contain;
}

.timeline {
  border-left: 2px solid var(--line);
  padding-left: 22px;
}

.timeline li {
  list-style: none;
  margin-bottom: 22px;
}

.timeline b {
  color: var(--accent-2);
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
}

.info-card,
.form-card,
.board-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}

.info-card li {
  list-style: none;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.info-card li strong {
  display: block;
  color: var(--text);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

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

.field.full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 13px;
  color: var(--muted);
}

.field input,
.field select,
.field textarea {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 12px;
  background: #fbfcfe;
  outline: none;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--accent);
}

.form-hint {
  margin-top: 10px;
  font-size: 12px;
  color: var(--muted);
}

.toast {
  display: none;
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: #e8f8ef;
  color: #146c43;
  font-size: 14px;
}

.toast.show { display: block; }

.board-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 16px;
}

.msg {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  background: #fbfcfe;
}

.msg header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
}

.msg b { color: var(--text); }

.empty {
  color: var(--muted);
  font-size: 14px;
}

.site-footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.7);
  padding: 48px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 28px;
  margin-bottom: 28px;
}

.site-footer h3,
.site-footer h4 {
  color: #fff;
  margin-bottom: 12px;
}

.site-footer a:hover { color: var(--accent); }

.copy {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 16px;
  font-size: 12px;
}

.copy a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color 0.2s;
}

.copy a:hover {
  color: var(--accent);
  text-decoration: underline;
}

@media (max-width: 980px) {
  .product-grid,
  .value-grid,
  .case-grid,
  .stats,
  .about-grid,
  .contact-layout,
  .industry-row,
  .news-grid,
  .footer-grid,
  .form-grid,
  .ckd-layout,
  .select-grid,
  .client-grid,
  .detail-main {
    grid-template-columns: 1fr 1fr;
  }

  .nikki-layout {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .cta-inner,
  .header-cta .phone {
    display: none;
  }
}

@media (max-width: 760px) {
  .menu-toggle { display: grid; place-items: center; }

  .nav {
    display: none;
    position: absolute;
    top: var(--header);
    left: 0;
    right: 0;
    background: var(--navy);
    flex-direction: column;
    padding: 12px 16px 20px;
    gap: 4px;
  }

  .nav.open { display: flex; }

  .carousel { height: 520px; }
  .carousel-btn { display: none; }

  .product-grid,
  .value-grid,
  .case-grid,
  .stats,
  .about-grid,
  .contact-layout,
  .industry-row,
  .news-grid,
  .footer-grid,
  .form-grid,
  .ckd-layout,
  .select-grid,
  .client-grid,
  .detail-main {
    grid-template-columns: 1fr;
  }

  .nikki-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  section { padding: 56px 0; }
}

/* ========== CKD 常用电磁阀资料卡（ckd.html #valve-docs） ========== */
.valve-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.valve-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 6px 24px rgba(10, 31, 46, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.valve-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(10, 31, 46, 0.1);
}

.valve-tag {
  align-self: flex-start;
  background: #f0faf5;
  border: 1px solid rgba(0, 155, 100, 0.35);
  color: var(--ckd-green-2);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.valve-card h3 {
  font-size: 20px;
  margin: 0 0 4px;
}

.valve-model {
  color: var(--ckd-green);
  font-size: 13px;
  font-weight: 700;
  margin: 0 0 12px;
}

.valve-desc {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
  margin: 0 0 12px;
}

.valve-card ul {
  margin: 0 0 18px;
  padding-left: 18px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.9;
}

.valve-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: auto;
}

.valve-actions .btn {
  width: 100%;
  padding: 9px 12px;
  font-size: 13px;
  border-radius: 10px;
  white-space: nowrap;
  text-align: center;
  box-shadow: none;
}

.valve-inquiry {
  display: inline-block;
  margin-top: 14px;
  color: var(--ckd-green-2);
  font-size: 13px;
  font-weight: 700;
}

.valve-inquiry:hover {
  color: var(--ckd-green);
}

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