:root {
  --navy-900: #061527;
  --navy-800: #0A1F38;
  --navy-700: #0E2C4F;
  --navy-600: #134070;
  --navy-500: #1A569B;
  --navy-400: #2C6FB8;
  --navy-100: #E3EDF7;
  --navy-050: #F2F7FC;
  --steel: #F5F7F9;
  --line: #DFE5EB;
  --line-dark: #C6D0DA;
  --ink: #16202C;
  --ink-2: #45535F;
  --ink-3: #6B7885;
  --molten: #E8622C;
  --molten-dark: #C44D1D;
  --amber: #F0A500;
  --ok: #1F8A4C;
  --radius: 10px;
  --radius-lg: 16px;
  --maxw: 1180px;
  --sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", system-ui, -apple-system, sans-serif;
}

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

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

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

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

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

a {
  color: var(--navy-500);
  text-decoration: none;
  transition: color 0.18s ease;
}

a:hover {
  color: var(--molten);
}

h1, h2, h3, h4 {
  margin: 0 0 0.6em;
  line-height: 1.35;
  font-weight: 600;
  color: var(--ink);
}

p {
  margin: 0 0 1.1em;
}

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy-700);
  color: #fff;
  padding: 10px 18px;
  z-index: 999;
}

.skip:focus {
  left: 0;
}

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

.wrapw {
  width: 100%;
  max-width: 780px;
}

.tiny {
  font-size: 13px;
  color: var(--ink-3);
}

/* ============ 顶部条 ============ */
.topbar {
  background: var(--navy-900);
  color: #C4D2E0;
  font-size: 13px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.topbar .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  min-height: 38px;
  padding-top: 6px;
  padding-bottom: 6px;
}

.topbar b {
  color: #fff;
  font-weight: 500;
}

.topbar a {
  color: #C4D2E0;
}

.topbar a:hover {
  color: var(--amber);
}

.tb-list {
  display: flex;
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

/* ============ 头部导航 ============ */
.site-head {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}

.head-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 74px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-logo {
  height: 46px;
  width: auto;
  display: block;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 9px;
  background: linear-gradient(140deg, var(--navy-500) 0%, var(--navy-700) 100%);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

.brand-txt strong {
  display: block;
  font-size: 17px;
  font-weight: 700;
  color: var(--navy-800);
  line-height: 1.25;
  letter-spacing: 0.3px;
}

.brand-txt span {
  display: block;
  font-size: 10.5px;
  color: var(--ink-3);
  letter-spacing: 1.4px;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav ul {
  display: flex;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.nav a {
  display: block;
  padding: 9px 15px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
}

.nav a:hover {
  background: var(--navy-050);
  color: var(--navy-600);
}

.nav a[aria-current="page"] {
  background: var(--navy-100);
  color: var(--navy-700);
}

.btn {
  display: inline-block;
  padding: 11px 22px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  border: 0;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.18s ease;
  white-space: nowrap;
}

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

.btn-primary {
  background: var(--molten);
  color: #fff;
}

.btn-primary:hover {
  background: var(--molten-dark);
  color: #fff;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.btn-line {
  background: transparent;
  color: var(--navy-600);
  border: 1px solid var(--line-dark);
}

.btn-line:hover {
  border-color: var(--navy-500);
  background: var(--navy-050);
  color: var(--navy-700);
}

.burger {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line-dark);
  background: #fff;
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  position: relative;
}

.burger span,
.burger span::before,
.burger span::after {
  position: absolute;
  left: 50%;
  width: 19px;
  height: 2px;
  background: var(--navy-700);
  transform: translateX(-50%);
  content: "";
}

.burger span {
  top: 50%;
  margin-top: -1px;
}

.burger span::before {
  top: -6px;
}

.burger span::after {
  top: 6px;
}

/* 1025~1180 之间导航挤一点，保证 9 项不换行 */
@media (max-width: 1180px) and (min-width: 1061px) {
  .nav a {
    padding: 9px 10px;
    font-size: 14.5px;
  }
}

/* 导航 9 项，窄屏收进汉堡菜单 */
@media (max-width: 1060px) {
  .burger {
    display: block;
  }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 28px rgba(6, 21, 39, 0.1);
    display: none;
  }

  .nav.open {
    display: block;
  }

  .nav ul {
    flex-direction: column;
    padding: 10px 20px 18px;
    gap: 0;
  }

  .nav a {
    padding: 12px 10px;
    border-radius: 0;
    border-bottom: 1px solid var(--line);
  }

  .head-cta {
    display: none;
  }
}

@media (max-width: 900px) {
  .topbar .wrap {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}

/* ============ Hero ============ */
.hero {
  position: relative;
  background: var(--navy-800);
  color: #fff;
  overflow: hidden;
  padding: 76px 0 84px;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.045) 0 1px, transparent 1px 68px),
    linear-gradient(180deg, rgba(10, 31, 56, 0) 0%, rgba(6, 21, 39, 0.92) 100%);
  pointer-events: none;
}

.hero .wrap {
  position: relative;
  z-index: 2;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 52px;
  align-items: center;
}

@media (max-width: 900px) {
  .hero {
    padding: 48px 0 56px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  color: #A9C4DE;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.eyebrow i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
  display: block;
}

.hero h1 {
  color: #fff;
  font-size: clamp(28px, 4.4vw, 44px);
  line-height: 1.28;
  margin-bottom: 20px;
  letter-spacing: -0.3px;
  text-wrap: balance;
}

.hero h1 em {
  font-style: normal;
  color: var(--amber);
}

.hero-lead {
  font-size: 17px;
  color: #C8D8E8;
  max-width: 40em;
  margin-bottom: 28px;
}

.hero-act {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 34px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

@media (max-width: 620px) {
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

.hero-stats b {
  display: block;
  font-size: 27px;
  font-weight: 700;
  color: var(--amber);
  line-height: 1.2;
  white-space: nowrap;
}

.hero-stats b span {
  display: inline;
  font-size: 15px;
  font-weight: 700;
  color: var(--amber);
  margin-top: 0;
}

.hero-stats span {
  display: block;
  font-size: 13px;
  color: #9FB6CC;
  margin-top: 3px;
}

.hero-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: 26px;
  backdrop-filter: blur(6px);
}

.hero-card h2 {
  font-size: 16px;
  color: #fff;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.spec-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.12);
  font-size: 14px;
}

.spec-row:last-child {
  border-bottom: 0;
}

.spec-row span {
  color: #9FB6CC;
  flex-shrink: 0;
}

.spec-row b {
  color: #fff;
  font-weight: 500;
  text-align: right;
}

/* ============ 区块通用 ============ */
.sec {
  padding: 74px 0;
}

.sec-alt {
  background: var(--steel);
}

.sec-navy {
  background: var(--navy-800);
  color: #C8D8E8;
}

.sec-hd {
  max-width: 760px;
  margin-bottom: 44px;
}

.sec-hd h2 {
  font-size: clamp(24px, 3.4vw, 33px);
  margin-bottom: 12px;
}

.sec-hd p {
  color: var(--ink-2);
  font-size: 16px;
  margin-bottom: 0;
}

.sec-navy .sec-hd h2 {
  color: #fff;
}

.sec-navy .sec-hd p {
  color: #A9C4DE;
}

.kicker {
  display: block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2.4px;
  color: var(--molten);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.sec-navy .kicker {
  color: var(--amber);
}

/* ============ 产品卡 ============ */
.prod-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

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

.prod {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.prod:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 34px rgba(6, 21, 39, 0.1);
  border-color: var(--navy-400);
}

.prod-visual {
  aspect-ratio: 4 / 3;
  background: #fff;
  border-bottom: 1px solid var(--line);
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}

.prod-visual > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.prod:hover .prod-visual > img {
  transform: scale(1.05);
}

.prod-visual svg {
  width: 74%;
  height: 74%;
}

.prod-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--navy-700);
  color: #fff;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 4px;
  font-weight: 500;
}

.prod-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.prod-body h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.prod-body h3 a {
  color: var(--ink);
}

.prod:hover .prod-body h3 a {
  color: var(--navy-600);
}

.prod-body p {
  font-size: 14.5px;
  color: var(--ink-2);
  margin-bottom: 14px;
  flex: 1;
}

.prod-spec {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  font-size: 13px;
  color: var(--ink-3);
  border-top: 1px dashed var(--line-dark);
  padding-top: 12px;
}

.prod-spec li {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 3px 0;
}

.prod-spec li b {
  color: var(--ink-2);
  font-weight: 500;
  text-align: right;
}

.prod-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--molten);
  align-self: flex-start;
}

.prod-link::after {
  content: " →";
}

/* ============ 优势 ============ */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

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

@media (max-width: 540px) {
  .adv-grid {
    grid-template-columns: 1fr;
  }
}

.adv {
  border-left: 3px solid var(--amber);
  padding-left: 16px;
}

.adv h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.adv p {
  font-size: 14.5px;
  color: var(--ink-2);
  margin-bottom: 0;
}

/* ============ 应用场景 ============ */
.app-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

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

.app {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  padding: 20px 18px;
  text-align: center;
}

.app svg {
  width: 34px;
  height: 34px;
  margin: 0 auto 12px;
  display: block;
}

.app b {
  display: block;
  color: #fff;
  font-size: 15.5px;
  font-weight: 600;
  margin-bottom: 5px;
}

.app span {
  font-size: 13px;
  color: #9FB6CC;
  line-height: 1.6;
  display: block;
}

/* ============ 流程 ============ */
.flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}

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

.flow li {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 20px 20px;
  list-style: none;
  counter-increment: step;
}

.flow li::before {
  content: "0" counter(step);
  display: block;
  font-size: 26px;
  font-weight: 700;
  color: var(--navy-100);
  line-height: 1;
  margin-bottom: 8px;
}

.flow h3 {
  font-size: 16.5px;
  margin-bottom: 7px;
}

.flow p {
  font-size: 14px;
  color: var(--ink-2);
  margin-bottom: 0;
}

.flow ol {
  display: contents;
  padding: 0;
  margin: 0;
}

/* ============ 文章 ============ */
.post-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

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

.post {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.post:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(6, 21, 39, 0.09);
}

.post-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 12.5px;
  color: var(--ink-3);
  margin-bottom: 12px;
}

.post-meta .cat {
  background: var(--navy-100);
  color: var(--navy-700);
  padding: 3px 10px;
  border-radius: 4px;
  font-weight: 500;
}

.post h3 {
  font-size: 17.5px;
  line-height: 1.45;
  margin-bottom: 10px;
}

.post h3 a {
  color: var(--ink);
}

.post:hover h3 a {
  color: var(--navy-600);
}

.post p {
  font-size: 14.5px;
  color: var(--ink-2);
  margin-bottom: 16px;
  flex: 1;
}

.post-more {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--navy-500);
}

/* ============ 文章正文 ============ */
.crumb {
  font-size: 13.5px;
  color: var(--ink-3);
  padding: 16px 0;
}

.crumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.crumb li::after {
  content: "›";
  margin-left: 8px;
  color: var(--line-dark);
}

.crumb li:last-child::after {
  content: none;
}

.article-hd {
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 32px;
}

.article-hd h1 {
  font-size: clamp(25px, 4vw, 36px);
  line-height: 1.32;
  margin-bottom: 16px;
  letter-spacing: -0.2px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13.5px;
  color: var(--ink-3);
  align-items: center;
}

.article-body {
  font-size: 16.5px;
  line-height: 1.9;
  color: #26313D;
}

.article-body h2 {
  font-size: 23px;
  margin: 40px 0 16px;
  padding-left: 13px;
  border-left: 4px solid var(--navy-500);
  line-height: 1.4;
}

.article-body h3 {
  font-size: 18.5px;
  margin: 30px 0 12px;
}

.article-body ul,
.article-body ol {
  padding-left: 24px;
  margin: 0 0 1.3em;
}

.article-body li {
  margin-bottom: 8px;
}

.article-body blockquote {
  margin: 26px 0;
  padding: 18px 22px;
  background: var(--navy-050);
  border-left: 4px solid var(--navy-500);
  border-radius: 0 8px 8px 0;
  color: var(--navy-700);
  font-size: 15.5px;
}

.article-body blockquote p:last-child {
  margin-bottom: 0;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14.5px;
}

.article-body th {
  background: var(--navy-700);
  color: #fff;
  padding: 11px 13px;
  text-align: left;
  font-weight: 500;
}

.article-body td {
  border: 1px solid var(--line);
  padding: 10px 13px;
}

.article-body tbody tr:nth-child(even) {
  background: var(--navy-050);
}

.callout {
  background: #FFF7ED;
  border: 1px solid #F5D9A8;
  border-radius: var(--radius);
  padding: 20px 22px;
  margin: 28px 0;
}

.callout h3 {
  margin: 0 0 8px;
  font-size: 16.5px;
  color: #8A5A05;
}

.callout p {
  margin-bottom: 0;
  font-size: 15px;
  color: #6B4A10;
}

.toc {
  background: var(--steel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 32px;
}

.toc b {
  display: block;
  font-size: 15px;
  margin-bottom: 10px;
}

.toc ol {
  margin: 0;
  padding-left: 20px;
  font-size: 15px;
}

.toc li {
  margin-bottom: 5px;
}

/* ============ CTA ============ */
.cta-band {
  background: linear-gradient(120deg, var(--navy-700) 0%, var(--navy-500) 100%);
  color: #fff;
  padding: 52px 0;
}

.cta-in {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.cta-in h2 {
  color: #fff;
  font-size: 27px;
  margin-bottom: 8px;
}

.cta-in p {
  color: #CFE0F0;
  margin-bottom: 0;
  font-size: 15.5px;
}

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

/* ============ 页脚 ============ */
.site-foot {
  background: var(--navy-900);
  color: #9FB6CC;
  font-size: 14px;
  padding: 52px 0 0;
}

.foot-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 36px;
  padding-bottom: 36px;
}

@media (max-width: 900px) {
  .foot-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}

@media (max-width: 540px) {
  .foot-grid {
    grid-template-columns: 1fr;
  }
}

.site-foot h4 {
  color: #fff;
  font-size: 15.5px;
  margin-bottom: 14px;
  font-weight: 600;
}

.site-foot ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-foot li {
  margin-bottom: 8px;
}

.site-foot a {
  color: #9FB6CC;
}

.site-foot a:hover {
  color: var(--amber);
}

.foot-brand strong {
  display: block;
  color: #fff;
  font-size: 17px;
  margin-bottom: 10px;
  font-weight: 600;
}

.foot-tel {
  font-size: 22px;
  font-weight: 700;
  color: var(--amber);
  display: block;
  margin: 4px 0;
  letter-spacing: 0.5px;
}

.foot-bot {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 18px 0 26px;
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}

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

.beian a {
  color: #9FB6CC;
}

/* ============ 数据对照表（可横向滚动） ============ */
.table-scroll {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
  font-size: 14.5px;
}

.data-table th {
  background: var(--navy-700);
  color: #fff;
  padding: 12px 16px;
  text-align: left;
  font-weight: 500;
  white-space: nowrap;
}

.data-table td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.data-table tbody tr:nth-child(even) {
  background: var(--navy-050);
}

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

.data-table tbody tr:hover {
  background: var(--navy-100);
}

@media (max-width: 760px) {
  .table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .data-table {
    min-width: 560px;
  }
}

/* ============ 产品页：图库 ============ */
.prod-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 44px;
}

/* 只有一张主图时用大图展示 */
.prod-gallery:has(figure:only-child) {
  grid-template-columns: 1fr;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}

.prod-gallery:has(figure:only-child) figure {
  aspect-ratio: 4 / 3;
  background: #fff;
}

@media (max-width: 900px) {
  .prod-gallery {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 560px) {
  .prod-gallery {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
}

.prod-gallery figure {
  margin: 0;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}

.prod-gallery img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.25s ease;
}

.prod-gallery figure:hover img {
  transform: scale(1.04);
}

/* ============ 产品页：规格表 ============ */
.spec-table {
  margin-bottom: 44px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.spec-table h2 {
  font-size: 20px;
  margin: 0;
  padding: 18px 24px;
  background: var(--navy-700);
  color: #fff;
  border: 0;
}

.spec-table table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
  font-size: 15px;
}

.spec-table th,
.spec-table td {
  padding: 13px 24px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.spec-table th {
  width: 130px;
  background: var(--navy-050);
  font-weight: 500;
  color: var(--navy-700);
  white-space: nowrap;
}

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

@media (max-width: 560px) {
  .spec-table th {
    width: 96px;
  }

  .spec-table th,
  .spec-table td {
    padding: 11px 14px;
    font-size: 14px;
  }
}

/* ============ 文章顶部配图 ============ */
.article-thumb {
  margin: 0 0 30px;
}

.article-thumb img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  display: block;
}

/* ============ 文章页图片 ============ */
.article-body figure {
  margin: 28px 0;
  text-align: center;
}

.article-body figure img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  display: inline-block;
}

/* ============ 面包屑移动端 ============ */
@media (max-width: 560px) {
  .sec {
    padding: 52px 0;
  }

  .foot-tel {
    font-size: 19px;
  }
}

@media (max-width: 700px) {
  .topbar .tb-list {
    gap: 10px 16px;
    font-size: 12.5px;
  }

  .topbar b {
    white-space: normal;
  }

  .article-body table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
  }

  .hero-stats b {
    font-size: 24px;
  }

  .article-body {
    font-size: 16px;
  }

  .article-hd h1 {
    font-size: 23px;
  }
}

@media print {
  .topbar,
  .site-head,
  .cta-band,
  .site-foot,
  .nav {
    display: none;
  }
}