/* ==========================================================================
   长沙贝利自控设备有限公司 · 官网样式
   设计语言：工业制图 / 钢板质感 —— 细发丝线、直角、克制留白
   ========================================================================== */

:root {
  --ink: #0b1116;
  --ink-2: #16232c;
  --steel: #59666f;
  --steel-2: #8a98a3;
  --line: #e3e8ec;
  --line-2: #cfd7dd;
  --mist: #f4f6f8;
  --paper: #ffffff;
  --brand: #0a5ac4;
  --brand-ink: #062a4d;
  --accent: #e8760d;
  --accent-soft: #fdf2e5;

  --sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC",
    "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI",
    sans-serif;
  --mono: "SF Mono", "JetBrains Mono", ui-monospace, "Menlo", monospace;

  --wrap: 1240px;
  --gut: 32px;
  --sect: 104px;
  --r: 3px;
}

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

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

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

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

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

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

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

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

/* ---------- 版心与排版基元 ---------- */

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

.sect {
  padding: var(--sect) 0;
}

.sect--tight {
  padding: calc(var(--sect) * 0.66) 0;
}

.sect--mist {
  background: var(--mist);
}

.sect--dark {
  background: var(--brand-ink);
  color: #fff;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel-2);
  margin: 0 0 22px;
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--accent);
  flex: none;
}

.eyebrow b {
  color: var(--accent);
  font-weight: 500;
  white-space: nowrap;
}

.sect--dark .eyebrow {
  color: rgba(255, 255, 255, 0.55);
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.01em;
}

.h1 {
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.h2 {
  font-size: clamp(26px, 3.1vw, 38px);
  line-height: 1.24;
}

.h3 {
  font-size: 20px;
  line-height: 1.4;
}

.lead {
  font-size: 17px;
  line-height: 1.85;
  color: var(--steel);
  max-width: 62ch;
}

.sect--dark .lead {
  color: rgba(255, 255, 255, 0.72);
}

.sec-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 460px);
  gap: 32px 64px;
  align-items: end;
  margin-bottom: 56px;
}

.sec-head p {
  margin: 16px 0 0;
}

.sec-head .lead {
  margin: 0;
}

.small {
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel-2);
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: var(--r);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: background 0.22s ease, color 0.22s ease, border-color 0.22s ease,
    transform 0.22s ease;
}

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

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

.btn--primary:hover {
  background: #cf6608;
}

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

.btn--ink:hover {
  background: var(--ink-2);
}

.btn--ghost {
  border-color: rgba(255, 255, 255, 0.34);
  color: #fff;
}

.btn--ghost:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.btn--outline {
  border-color: var(--line-2);
  color: var(--ink);
  background: #fff;
}

.btn--outline:hover {
  border-color: var(--ink);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  border-bottom: 1px solid var(--line-2);
  padding-bottom: 3px;
  transition: gap 0.2s ease, border-color 0.2s ease;
}

.link-arrow:hover {
  gap: 14px;
  border-color: var(--accent);
}

/* ---------- 顶部条 + 导航 ---------- */

.topbar {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.topbar .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 38px;
}

.topbar .tb-co {
  font-size: 11.5px;
  letter-spacing: 0.02em;
}

.topbar .tb-contact {
  display: flex;
  align-items: center;
  gap: 22px;
}

.topbar a:hover {
  color: #fff;
}

.topbar .tb-dot {
  width: 3px;
  height: 3px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
  margin-right: 8px;
  vertical-align: middle;
}

.site-head {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.site-head .wrap {
  display: flex;
  align-items: center;
  gap: 40px;
  min-height: 74px;
}

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

.brand img {
  width: 42px;
  height: 43px;
  object-fit: contain;
}

.brand-txt {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-txt strong {
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-txt span {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel-2);
  margin-top: 3px;
}

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

.nav a {
  position: relative;
  padding: 10px 14px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--steel);
  transition: color 0.18s ease;
  white-space: nowrap;
}

.nav a:hover {
  color: var(--ink);
}

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

.nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background: var(--accent);
}

.head-cta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.head-tel {
  display: flex;
  flex-direction: column;
  text-align: right;
  line-height: 1.15;
  margin-right: 4px;
}

.head-tel span {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--steel-2);
}

.head-tel strong {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

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

.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.22s 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 {
  transform: translateY(6px) rotate(45deg);
}

body.nav-open .nav-toggle span::after {
  transform: translateY(-6px) rotate(-45deg);
}

/* ---------- 语言切换 ---------- */

.lang {
  display: flex;
  align-items: center;
  flex: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  overflow: hidden;
  margin-left: 2px;
}

.lang a {
  padding: 6px 9px;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.2;
  letter-spacing: 0.06em;
  color: var(--steel-2);
  white-space: nowrap;
  transition: background 0.18s ease, color 0.18s ease;
}

.lang a:hover {
  color: var(--ink);
  background: var(--mist);
}

.lang a[aria-current="true"] {
  background: var(--brand-ink);
  color: #fff;
}

/* 英文页面：正文字体改用系统西文字体栈，中文回退仍可用 */
html[lang="en"] body,
html[lang="en"] button,
html[lang="en"] input,
html[lang="en"] textarea,
html[lang="en"] select {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

html[lang="en"] .h1 {
  font-size: clamp(30px, 3.15vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.025em;
}

html[lang="en"] .h2 {
  letter-spacing: -0.025em;
}

@media (max-width: 1200px) {
  html[lang="en"] .head-tel {
    display: none;
  }
}

/* 英文正文：限制超长行宽、放宽术语列 */
html[lang="en"] .mini-dl > div {
  grid-template-columns: 150px minmax(0, 1fr);
}

html[lang="en"] .tl-item p {
  max-width: 62ch;
}

/* ---------- 首页 Hero ---------- */

.hero {
  position: relative;
  isolation: isolate;
  color: #fff;
  overflow: hidden;
  background: var(--brand-ink);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  align-items: stretch;
}

.hero__copy {
  display: flex;
  align-items: center;
}

.hero__inner {
  width: 100%;
  max-width: 660px;
  margin-left: auto;
  padding: 86px 60px 76px max(var(--gut), calc((100vw - var(--wrap)) / 2 + var(--gut)));
}

.hero__media {
  position: relative;
  min-height: 600px;
  background: #0a2036;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 42% center;
  /* 左侧渐隐，消除照片与深蓝底之间的硬边 */
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 26%);
  mask-image: linear-gradient(90deg, transparent 0, #000 26%);
}

.hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(6, 42, 77, 1) 0%,
    rgba(6, 42, 77, 0.55) 14%,
    rgba(6, 42, 77, 0.12) 34%,
    rgba(6, 42, 77, 0) 58%
  );
}

.hero__eyebrow {
  margin-bottom: 26px;
}

.hero h1 {
  max-width: 12em;
  font-size: clamp(30px, 3.8vw, 52px);
}

.hero h1 em {
  font-style: normal;
  color: #ffb257;
  white-space: nowrap;
}

.hero__sub {
  margin: 26px 0 0;
  max-width: 44ch;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.72);
}

.hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.hero__statsbar {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(4, 22, 40, 0.55);
}

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

.hero__stats div {
  padding: 24px 24px 26px 0;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
}

.hero__stats div:last-child {
  border-right: 0;
}

.hero__stats b {
  display: block;
  font-family: var(--mono);
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.hero__stats b i {
  font-style: normal;
  font-size: 0.5em;
  margin-left: 3px;
  color: rgba(255, 255, 255, 0.6);
}

.hero__stats span {
  display: block;
  margin-top: 9px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.55);
}

/* 内页 hero */
.pagehead {
  position: relative;
  isolation: isolate;
  color: #fff;
  background: var(--brand-ink);
  overflow: hidden;
}

.pagehead__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.pagehead__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.pagehead__veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    90deg,
    rgba(4, 20, 36, 0.94),
    rgba(4, 20, 36, 0.72) 60%,
    rgba(4, 20, 36, 0.5)
  );
}

.pagehead .wrap {
  padding: 74px var(--gut) 68px;
}

.pagehead h1 {
  font-size: clamp(30px, 4vw, 46px);
}

.pagehead p {
  margin: 18px 0 0;
  max-width: 60ch;
  color: rgba(255, 255, 255, 0.7);
  font-size: 15.5px;
}

.crumb {
  display: flex;
  gap: 10px;
  align-items: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 22px;
}

.crumb a:hover {
  color: #fff;
}

.crumb i {
  font-style: normal;
  color: rgba(255, 255, 255, 0.28);
}

/* ---------- 产品体系卡片（首页） ---------- */

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

.series-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: #fff;
  overflow: hidden;
  transition: border-color 0.24s ease, transform 0.24s ease,
    box-shadow 0.24s ease;
}

.series-card:hover {
  border-color: var(--line-2);
  transform: translateY(-3px);
  box-shadow: 0 18px 40px -28px rgba(11, 17, 22, 0.5);
}

.series-card__media {
  aspect-ratio: 16 / 11;
  background: #fff;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  padding: 22px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.series-card__media img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.5s ease;
}

.series-card:hover .series-card__media img {
  transform: scale(1.04);
}

.series-card__body {
  padding: 26px 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
}

.series-card__no {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.series-card h3 {
  font-size: 21px;
}

.series-card .en {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--steel-2);
  margin-top: 7px;
  font-weight: 500;
}

.series-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
  font-size: 14px;
  color: var(--steel);
}

.series-card li {
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.series-card li::before {
  content: "";
  width: 5px;
  height: 1px;
  background: var(--line-2);
  flex: none;
  transform: translateY(-4px);
}

.series-card__foot {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--steel-2);
}

/* ---------- 工艺 / 参数 ---------- */

.craft {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 72px;
  align-items: start;
}

.craft__media {
  position: sticky;
  top: 108px;
}

.craft__media img {
  width: 100%;
  border-radius: var(--r);
  border: 1px solid var(--line);
}

.craft__media figcaption {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--steel-2);
  display: flex;
  gap: 8px;
}

.spec-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.spec-list li {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 18px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.spec-list .idx {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.06em;
  padding-top: 4px;
}

.spec-list h3 {
  font-size: 17.5px;
  margin-bottom: 8px;
}

.spec-list p {
  margin: 0;
  font-size: 14.5px;
  color: var(--steel);
  line-height: 1.8;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.chip {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--steel);
  background: #fff;
  white-space: nowrap;
}

.chip--accent {
  color: #b85c07;
  border-color: #f3d8bb;
  background: var(--accent-soft);
}

/* ---------- 行业网格 ---------- */

.ind-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.ind {
  position: relative;
  padding: 34px 30px 32px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
  transition: background 0.24s ease;
}

.ind:hover {
  background: var(--mist);
}

.ind .no {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--steel-2);
  letter-spacing: 0.1em;
}

.ind h3 {
  font-size: 18px;
  margin: 14px 0 8px;
}

.ind p {
  margin: 0;
  font-size: 14px;
  color: var(--steel);
}

.ind::after {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.ind:hover::after {
  width: 100%;
}

/* ---------- 项目列表 ---------- */

.ref-list {
  border-top: 1px solid var(--line);
}

.ref-row {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr) 120px 84px;
  gap: 24px;
  align-items: center;
  padding: 22px 4px;
  border-bottom: 1px solid var(--line);
  transition: background 0.2s ease, padding-left 0.2s ease;
}

.ref-row:hover {
  background: var(--mist);
  padding-left: 14px;
}

.ref-row .yr {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--steel-2);
}

.ref-row .nm {
  font-size: 15px;
  font-weight: 600;
}

.ref-row .nm span {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--steel-2);
  margin-top: 5px;
  text-transform: uppercase;
}

.ref-row .qt {
  font-family: var(--mono);
  font-size: 15px;
  text-align: right;
  white-space: nowrap;
}

.ref-row .qt i {
  font-style: normal;
  font-size: 10.5px;
  color: var(--steel-2);
  margin-left: 4px;
}

.ref-row .tag {
  justify-self: end;
  font-size: 11px;
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--steel);
  white-space: nowrap;
  background: #fff;
}

/* ---------- 客户 / 品牌墙 ---------- */

.logo-wall {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.logo-wall > div {
  background: #fff;
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 22px;
}

.logo-wall img {
  /* 用统一的视觉包络框，避免宽 logo 撑满、方 logo 过高造成的轻重失衡 */
  width: auto;
  height: auto;
  max-width: 132px;
  max-height: 44px;
  object-fit: contain;
  filter: grayscale(1);
  opacity: 0.72;
  transition: filter 0.24s ease, opacity 0.24s ease;
}

.logo-wall > div:hover img {
  filter: none;
  opacity: 1;
}

/* ---------- 认证 ---------- */

.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.cert {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: var(--r);
  padding: 14px;
  text-align: left;
  transition: border-color 0.22s ease, transform 0.22s ease;
}

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

.cert img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: contain;
  object-position: center;
  border: 1px solid var(--line);
  background: #fcfcfd;
}

.cert b {
  display: block;
  margin-top: 13px;
  font-size: 14px;
}

.cert span {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--steel-2);
  margin-top: 4px;
}

/* ---------- CTA 区块 ---------- */

.cta-band {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--brand-ink);
  color: #fff;
}

.cta-band__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.cta-band__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.cta-band__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
}

.cta-band__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(4, 24, 44, 0.94) 0%,
    rgba(4, 24, 44, 0.82) 52%,
    rgba(4, 24, 44, 0.7) 100%
  );
}

.cta-band .wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 40px;
  align-items: center;
  padding-top: 72px;
  padding-bottom: 72px;
}

.cta-band h2 {
  font-size: clamp(24px, 3vw, 34px);
  max-width: 20em;
}

.cta-band p {
  margin: 16px 0 0;
  color: rgba(255, 255, 255, 0.66);
  font-size: 15px;
  max-width: 48ch;
}

.cta-band .acts {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ---------- 页脚 ---------- */

.foot {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.6);
  font-size: 13.5px;
}

.foot__main {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.25fr;
  gap: 48px;
  padding: 68px 0 54px;
}

.foot__brand {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.foot__brand img {
  width: 44px;
  height: 45px;
  object-fit: contain;
  background: #fff;
  padding: 4px;
  border-radius: 2px;
}

.foot__brand strong {
  display: block;
  color: #fff;
  font-size: 15.5px;
  letter-spacing: 0.03em;
  line-height: 1.4;
}

.foot__brand span {
  display: block;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 7px;
  line-height: 1.7;
}

.foot h4 {
  color: #fff;
  font-size: 12px;
  font-family: var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 18px;
}

.foot ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.foot a:hover {
  color: #fff;
}

.foot .addr {
  line-height: 1.85;
  font-size: 13px;
}

.foot__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.36);
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

/* ---------- 产品中心：筛选 + 卡片 ---------- */

.filterbar {
  position: sticky;
  top: 74px;
  z-index: 40;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.filterbar .wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-top: 14px;
  padding-bottom: 14px;
  overflow-x: auto;
  scrollbar-width: none;
}

.filterbar .wrap::-webkit-scrollbar {
  display: none;
}

.fbtn {
  border: 1px solid transparent;
  background: transparent;
  border-radius: 2px;
  padding: 9px 16px;
  font-size: 14px;
  color: var(--steel);
  white-space: nowrap;
  transition: all 0.18s ease;
}

.fbtn:hover {
  color: var(--ink);
  background: var(--mist);
}

.fbtn[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.fcount {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--steel-2);
  white-space: nowrap;
}

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

.pcard {
  display: flex;
  flex-direction: column;
  padding: 0;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: #fff;
  overflow: hidden;
  transition: border-color 0.24s ease, transform 0.24s ease,
    box-shadow 0.24s ease;
}

.pcard:hover {
  border-color: var(--line-2);
  transform: translateY(-3px);
  box-shadow: 0 20px 44px -30px rgba(11, 17, 22, 0.55);
}

.pcard__media {
  position: relative;
  aspect-ratio: 4 / 3;
  flex: none;
  min-height: 0;
  background: linear-gradient(180deg, #fbfcfd, #f3f6f8);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.pcard__media img {
  position: absolute;
  inset: 22px;
  width: calc(100% - 44px);
  height: calc(100% - 44px);
  object-fit: contain;
  transition: transform 0.45s ease;
}

.pcard:hover .pcard__media img {
  transform: scale(1.035);
}

.pcard__media .no {
  position: absolute;
  top: 14px;
  left: 16px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--steel-2);
}

.pcard__body {
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.pcard h3 {
  font-size: 18px;
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.pcard h3 span {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--steel-2);
  text-transform: uppercase;
}

.pcard p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--steel);
}

.pcard__foot {
  margin-top: auto;
  padding-top: 15px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--steel-2);
}

.pcard__foot em {
  font-style: normal;
  color: var(--accent);
  font-weight: 600;
}

/* ---------- 弹窗 ---------- */

dialog.sheet {
  width: min(1000px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  padding: 0;
  border: 1px solid var(--line-2);
  border-radius: 4px;
  background: #fff;
  color: var(--ink);
  overflow: hidden;
  box-shadow: 0 40px 120px -40px rgba(0, 0, 0, 0.5);
}

.sheet__grid,
.sheet .zoomwrap {
  max-height: calc(100vh - 52px);
  overflow: auto;
}

dialog.sheet::backdrop {
  background: rgba(6, 16, 24, 0.55);
  backdrop-filter: blur(3px);
}

.sheet__grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  min-height: 420px;
}

.sheet__media {
  background: var(--mist);
  padding: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--line);
}

.sheet__media img {
  max-width: 100%;
  max-height: 460px;
  object-fit: contain;
}

.sheet__body {
  padding: 40px 38px 34px;
  display: flex;
  flex-direction: column;
}

.sheet__body h3 {
  font-size: 24px;
  margin-bottom: 6px;
}

.sheet__body .en {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--steel-2);
  text-transform: uppercase;
}

.sheet__body .desc {
  margin: 20px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--steel);
}

.sheet__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.sheet__close:hover {
  border-color: var(--ink);
}

.sheet__acts {
  margin-top: auto;
  padding-top: 26px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.sheet dl {
  margin: 22px 0 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.sheet dl > div {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
}

.sheet dt {
  color: var(--steel-2);
}

.sheet dd {
  margin: 0;
  color: var(--ink);
}

dialog.sheet img.zoom {
  width: 100%;
  height: auto;
  max-height: none;
}

dialog.sheet .zoomwrap {
  padding: 20px;
  background: var(--mist);
}

/* ---------- 关于我们 ---------- */

.about-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1fr);
  gap: 72px;
  align-items: start;
}

.about-intro .body p {
  margin: 0 0 20px;
  font-size: 15.5px;
  line-height: 1.95;
  color: var(--steel);
}

.about-intro .body p strong {
  color: var(--ink);
  font-weight: 600;
}

.figure-stack {
  display: grid;
  gap: 16px;
}

.figure-stack figure {
  margin: 0;
}

.figure-stack img {
  width: 100%;
  border-radius: var(--r);
  border: 1px solid var(--line);
}

.figure-stack figcaption {
  margin-top: 10px;
  font-size: 12px;
  color: var(--steel-2);
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

.timeline {
  border-top: 1px solid var(--line);
  margin-top: 8px;
}

.tl-item {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 28px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.tl-item .y {
  font-family: var(--mono);
  font-size: 15px;
  color: var(--accent);
  padding-top: 2px;
}

.tl-item b {
  display: block;
  font-size: 16px;
  margin-bottom: 6px;
}

.tl-item p {
  margin: 0;
  font-size: 14px;
  color: var(--steel);
}

.ratio {
  display: grid;
  gap: 22px;
  margin-top: 6px;
}

.ratio__bar {
  height: 10px;
  display: flex;
  border-radius: 1px;
  overflow: hidden;
  background: var(--mist);
}

.ratio__bar i {
  display: block;
  height: 100%;
}

.ratio__legend {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.ratio__legend div {
  border-left: 2px solid var(--line-2);
  padding-left: 12px;
}

.ratio__legend b {
  display: block;
  font-family: var(--mono);
  font-size: 20px;
  line-height: 1.2;
}

.ratio__legend span {
  font-size: 12.5px;
  color: var(--steel);
}

.values {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.value {
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 26px 24px;
  background: #fff;
}

.value b {
  display: block;
  font-size: 17px;
  margin-bottom: 8px;
}

.value b i {
  font-style: normal;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  display: block;
  margin-bottom: 6px;
  letter-spacing: 0.1em;
}

.value p {
  margin: 0;
  font-size: 13.5px;
  color: var(--steel);
  line-height: 1.8;
}

/* ---------- 项目页 ---------- */

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 30px 0;
}

.stat-row div b {
  display: block;
  font-family: var(--mono);
  font-size: 30px;
  line-height: 1.1;
}

.stat-row div b i {
  font-style: normal;
  font-size: 0.46em;
  color: var(--steel-2);
  margin-left: 4px;
}

.stat-row div span {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--steel);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.toolbar .search {
  margin-left: auto;
  position: relative;
}

.toolbar input[type="search"] {
  height: 42px;
  width: 260px;
  padding: 0 14px 0 38px;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  font: inherit;
  font-size: 14px;
  background: #fff;
}

.toolbar input[type="search"]:focus {
  border-color: var(--ink);
  outline: none;
}

.toolbar .search svg {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  width: 15px;
  height: 15px;
  color: var(--steel-2);
  pointer-events: none;
}

.table-wrap {
  border-top: 1px solid var(--line);
}

.tbl-head,
.tbl-row {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr) 110px 90px;
  gap: 20px;
  align-items: center;
  padding: 13px 8px;
  border-bottom: 1px solid var(--line);
}

.tbl-head {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--steel-2);
  text-transform: uppercase;
  border-bottom-color: var(--line-2);
}

.tbl-row {
  font-size: 14.5px;
  transition: background 0.16s ease;
}

.tbl-row:hover {
  background: var(--mist);
}

.tbl-row .i {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--steel-2);
}

.tbl-row .p span {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--steel-2);
  text-transform: uppercase;
  margin-top: 3px;
}

.tbl-row .q {
  font-family: var(--mono);
  text-align: right;
}

.tbl-row .d {
  text-align: right;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--steel);
}

.empty {
  padding: 56px 0;
  text-align: center;
  color: var(--steel-2);
  font-size: 14px;
}

/* ---------- 联系页 ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: start;
}

.info-list {
  border-top: 1px solid var(--line);
}

.info-list > div {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
}

.info-list dt {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel-2);
  text-transform: uppercase;
  padding-top: 3px;
}

.info-list dd {
  margin: 0;
  line-height: 1.8;
}

.info-list dd a {
  border-bottom: 1px solid var(--line-2);
}

.info-list dd a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.form {
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 32px;
  background: #fff;
}

.form h3 {
  font-size: 19px;
  margin-bottom: 6px;
}

.form > p {
  margin: 0 0 24px;
  font-size: 13.5px;
  color: var(--steel);
}

.field {
  display: grid;
  gap: 7px;
  margin-bottom: 16px;
}

.field label {
  font-size: 12.5px;
  color: var(--steel);
  letter-spacing: 0.02em;
}

.field label i {
  color: var(--accent);
  font-style: normal;
  margin-left: 2px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  padding: 11px 13px;
  font: inherit;
  font-size: 14px;
  color: var(--ink);
  background: #fff;
  transition: border-color 0.18s ease;
}

.field textarea {
  min-height: 110px;
  resize: vertical;
  line-height: 1.7;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--ink);
  outline: none;
}

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

.field.two > div {
  display: grid;
  gap: 7px;
}

.form__note {
  font-size: 12px;
  color: var(--steel-2);
  margin: 14px 0 0;
  line-height: 1.7;
}

.form__msg {
  margin-top: 14px;
  font-size: 13px;
  color: #1c6b3c;
  background: #eef8f1;
  border: 1px solid #cfe9d8;
  border-radius: 2px;
  padding: 10px 13px;
  display: none;
}

.form__msg.show {
  display: block;
}

.bank {
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 26px 28px;
  background: var(--mist);
}

.bank h4 {
  font-size: 13px;
  font-family: var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 16px;
}

.bank dl {
  margin: 0;
  display: grid;
  gap: 0;
}

.bank dl > div {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line-2);
  font-size: 13.5px;
}

.bank dl > div:last-child {
  border-bottom: 0;
}

.bank dt {
  color: var(--steel-2);
  font-size: 12.5px;
}

.bank dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
}

/* ---------- 分享条 / 数据 ---------- */

.tag-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-strip span {
  font-size: 12.5px;
  color: var(--steel);
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 2px;
  background: #fff;
}

/* ---------- 动效 ---------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
  will-change: opacity, transform;
}

[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

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

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

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

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {
  :root {
    --gut: 26px;
    --sect: 84px;
  }

  .series {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

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

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

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

  .foot__main {
    grid-template-columns: 1.3fr 1fr 1fr;
    gap: 36px;
  }

  .foot__col--contact {
    grid-column: 1 / -1;
  }

  .craft,
  .about-intro,
  .contact-grid {
    gap: 48px;
  }

  .sec-head {
    grid-template-columns: 1fr;
    gap: 20px;
    align-items: start;
  }
}

@media (max-width: 900px) {
  .nav {
    position: fixed;
    inset: 74px 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 8px 20px 20px;
    box-shadow: 0 24px 40px -30px rgba(0, 0, 0, 0.4);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.22s ease, transform 0.22s ease;
    margin-left: 0;
  }

  body.nav-open .nav {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .nav a {
    padding: 14px 8px;
    border-bottom: 1px solid var(--line);
    font-size: 15.5px;
  }

  .nav a[aria-current="page"]::after {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .head-tel {
    display: none;
  }

  .head-cta .btn {
    display: none;
  }

  .site-head .wrap {
    gap: 16px;
  }

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

  .hero__inner {
    padding: 64px var(--gut) 56px;
    margin-left: 0;
    max-width: none;
  }

  .hero__media {
    min-height: 320px;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
  }

  .hero__media::after {
    background: linear-gradient(0deg, rgba(6, 42, 77, 0.85), rgba(6, 42, 77, 0) 60%);
  }

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

  .hero__stats div:nth-child(2n) {
    border-right: 0;
  }

  .hero__stats div:nth-child(n + 3) {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }

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

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

  .craft__media {
    position: static;
  }

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

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

  .about-intro {
    grid-template-columns: 1fr;
  }

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

  .cta-band .wrap {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-top: 56px;
    padding-bottom: 56px;
  }

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

  .sheet__media {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 22px;
  }

  .sheet__body {
    padding: 28px 24px 26px;
  }

  .ref-row {
    grid-template-columns: 74px minmax(0, 1fr) 90px;
  }

  .ref-row .tag {
    display: none;
  }

  .tbl-head,
  .tbl-row {
    grid-template-columns: 44px minmax(0, 1fr) 80px 62px;
    gap: 12px;
  }

  .tools {
    position: static;
  }
}

@media (max-width: 620px) {
  :root {
    --gut: 20px;
    --sect: 64px;
  }

  body {
    font-size: 15.5px;
  }

  .topbar .tb-co {
    display: none;
  }

  .topbar .wrap {
    justify-content: center;
  }

  .brand-txt strong {
    font-size: 15px;
  }

  .brand-txt span {
    font-size: 8px;
  }

  .hero h1 {
    font-size: clamp(30px, 8.4vw, 40px);
  }

  .hero__acts .btn {
    flex: 1 1 100%;
  }

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

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

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

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

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

  .stat-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .ref-row {
    grid-template-columns: 62px minmax(0, 1fr);
    gap: 6px 14px;
    padding: 16px 0;
  }

  .ref-row .nm {
    font-size: 14px;
  }

  .ref-row .qt {
    grid-column: 2;
    text-align: left;
    font-size: 13px;
  }

  .tbl-head {
    display: none;
  }

  .tbl-row {
    grid-template-columns: 34px minmax(0, 1fr) 66px;
    font-size: 13.5px;
    padding: 12px 2px;
  }

  .tbl-row .d {
    display: none;
  }

  .toolbar .search {
    margin-left: 0;
    width: 100%;
  }

  .toolbar input[type="search"] {
    width: 100%;
  }

  .form {
    padding: 22px 20px;
  }

  .field.two {
    grid-template-columns: 1fr;
  }

  .info-list > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .foot__main {
    grid-template-columns: 1fr;
    gap: 34px;
    padding: 48px 0 40px;
  }

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

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 关于我们：团队卡片 ---------- */

.mono-label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel-2);
  margin: 0;
}

.team-card {
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: #fff;
  padding: 30px 30px 28px;
}

.mini-dl {
  margin: 14px 0 0;
  border-top: 1px solid var(--line);
}

.mini-dl > div {
  display: grid;
  grid-template-columns: 118px 1fr;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.mini-dl dt {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}

.mini-dl dd {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
}

p.chips {
  margin: 0;
}

/* ==========================================================================
   改进批次：锚点偏移 / 移动端咨询条 / 复制按钮 / 询价结果面板 / 404
   ========================================================================== */

/* 站内锚点跳转不被吸顶头部遮挡 */
[id] {
  scroll-margin-top: 96px;
}

/* ---------- 联系方式：一键复制 ---------- */

.copy {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-left: 10px;
  padding: 2px 7px;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  background: #fff;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--steel-2);
  vertical-align: 2px;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

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

.copy.is-done {
  color: #fff;
  border-color: var(--brand);
  background: var(--brand);
}

.copy svg {
  width: 11px;
  height: 11px;
  flex: none;
}

/* ---------- 询价结果面板 ---------- */

.form__out {
  margin-top: 18px;
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  background: var(--mist);
  padding: 16px 16px 14px;
  display: none;
}

.form__out.show {
  display: block;
}

.form__out h4 {
  font-size: 13.5px;
  margin-bottom: 4px;
}

.form__out p {
  font-size: 12.5px;
  color: var(--steel);
  margin: 0 0 12px;
  line-height: 1.65;
}

.form__out textarea {
  width: 100%;
  min-height: 196px;
  resize: vertical;
  padding: 12px;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  background: #fff;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink-2);
}

.form__out .acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.form__out .btn {
  flex: 1 1 auto;
  justify-content: center;
  min-height: 44px;
  font-size: 13.5px;
}

/* ---------- 参数口径说明 ---------- */

.spec-note {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 14px 0 0;
  padding: 12px 14px;
  border-left: 2px solid var(--accent);
  background: var(--accent-soft);
  font-size: 12.5px;
  line-height: 1.7;
  color: #7a4a10;
}

.spec-note b {
  color: #5d3708;
}

.tag-diagram {
  position: absolute;
  right: 12px;
  bottom: 12px;
  padding: 3px 8px;
  background: rgba(11, 17, 22, 0.72);
  color: #fff;
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
}

/* ---------- 移动端常驻咨询条 ---------- */

.mobile-bar {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  gap: 1px;
  background: var(--line-2);
  border-top: 1px solid var(--line-2);
  padding-bottom: env(safe-area-inset-bottom);
}

.mobile-bar a {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  font-size: 14.5px;
  font-weight: 600;
  background: #fff;
  color: var(--ink);
}

.mobile-bar a.is-primary {
  background: var(--accent);
  color: #fff;
}

.mobile-bar svg {
  width: 16px;
  height: 16px;
}

@media (max-width: 900px) {
  .mobile-bar {
    display: flex;
  }

  body {
    padding-bottom: 52px;
  }

  .hero__media img {
    -webkit-mask-image: none;
    mask-image: none;
  }
}

/* ---------- 关于我们：团队卡 / 证书 3 列的响应式修饰类 ---------- */

.about-intro--team {
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
}

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

.mini-dl > div {
  grid-template-columns: 118px minmax(0, 1fr);
}

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

@media (max-width: 760px) {
  .cert-grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .cert-grid--3 {
    grid-template-columns: 1fr;
  }

  .mini-dl > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

/* ---------- 404 ---------- */

.nf {
  padding: 120px 0 140px;
  text-align: center;
}

.nf .code {
  font-family: var(--mono);
  font-size: clamp(64px, 12vw, 132px);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--line-2);
}

.nf h1 {
  margin: 18px 0 12px;
  font-size: clamp(22px, 3vw, 30px);
}

.nf p {
  color: var(--steel);
  max-width: 42em;
  margin: 0 auto 30px;
}

.nf .acts {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}