@charset "utf-8";
/* =========================================================
   兴蜀荣 · 企业官网核心样式
   设计语言：仪器的刻度与参数表——墨青、纸白、黄铜，
   细线、近距离、tabular 数字，克制而精确。
   ========================================================= */

:root {
  --ink: #112a2c;
  --ink-2: #1b3f42;
  --ink-3: #27565a;
  --paper: #f4f4ef;
  --paper-2: #fbfbf8;
  --card: #ffffff;
  --text: #1a2321;
  --muted: #5c6b67;
  --muted-2: #8a958f;
  --brass: #a9854f;
  --brass-deep: #836230;
  --line: rgba(17, 42, 44, 0.13);
  --line-soft: rgba(17, 42, 44, 0.07);
  --line-dark: rgba(244, 244, 239, 0.16);

  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
    "Noto Sans CJK SC", sans-serif;

  --wrap: 1240px;
  --gutter: 20px;
  --section-y: 64px;
  --radius: 3px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

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

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

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

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

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-wrap: balance;
}

h1 {
  font-size: clamp(2rem, 7.2vw, 3.75rem);
  letter-spacing: -0.025em;
  line-height: 1.18;
}

h2 {
  font-size: clamp(1.5rem, 4.4vw, 2.35rem);
}

h3 {
  font-size: clamp(1.06rem, 2.6vw, 1.3rem);
}

p {
  margin: 0 0 1em;
}

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

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

figure {
  margin: 0;
}

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

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

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

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--ink);
  color: var(--paper);
  font-size: 14px;
  transition: top 0.2s var(--ease);
}

.skip-link:focus {
  top: 12px;
}

/* ---------- 布局容器 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding: var(--section-y) 0;
  position: relative;
}

.section--tight {
  padding: calc(var(--section-y) * 0.72) 0;
}

.section--paper2 {
  background: var(--paper-2);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.section--ink {
  background: var(--ink);
  color: rgba(244, 244, 239, 0.8);
}

.section--ink h2,
.section--ink h3 {
  color: var(--paper);
}

/* ---------- 刻度线（站点母题） ---------- */
.ticks {
  height: 9px;
  border-top: 1px solid var(--line);
  background-image: repeating-linear-gradient(
    to right,
    var(--line) 0 1px,
    transparent 1px 24px
  );
  background-size: 100% 9px;
  background-repeat: no-repeat;
  background-position: left top;
  opacity: 0.9;
}

.ticks--brass {
  border-top-color: var(--brass);
  background-image: repeating-linear-gradient(
    to right,
    var(--brass) 0 1px,
    transparent 1px 24px
  );
}

.ticks--dark {
  border-top-color: var(--line-dark);
  background-image: repeating-linear-gradient(
    to right,
    var(--line-dark) 0 1px,
    transparent 1px 24px
  );
}

/* ---------- 区块标题 ---------- */
.sec-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 32px;
  margin-bottom: 34px;
}

.sec-head__main {
  max-width: 760px;
}

.sec-head h2 {
  margin-bottom: 10px;
}

.sec-head p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
  max-width: 56ch;
}

.sec-head__link {
  font-size: 14px;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  padding-bottom: 3px;
  white-space: nowrap;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.sec-head__link:hover {
  color: var(--brass-deep);
  border-bottom-color: var(--brass);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.btn--primary {
  background: var(--ink);
  color: var(--paper);
}

.btn--primary:hover {
  background: var(--ink-3);
}

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

.btn--brass:hover {
  background: var(--brass-deep);
}

.btn--ghost {
  border-color: rgba(244, 244, 239, 0.45);
  color: var(--paper);
}

.btn--ghost:hover {
  border-color: var(--paper);
  background: rgba(244, 244, 239, 0.08);
}

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

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

.btn__arrow {
  width: 16px;
  height: 16px;
  flex: none;
}

/* ---------- 页头 ---------- */
.site-head {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244, 244, 239, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line-soft);
}

.site-head__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
}

.brand__mark {
  width: auto;
  height: 38px;
  flex: none;
}

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

.brand__cn {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink);
}

.brand__en {
  font-size: 9px;
  letter-spacing: 0.22em;
  color: var(--muted-2);
  margin-top: 3px;
}

.nav {
  display: none;
}

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

.head-tel {
  display: none;
}

.head-cta {
  display: none;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
}

.nav-toggle__bars {
  display: grid;
  gap: 4px;
  width: 18px;
}

.nav-toggle__bars i {
  display: block;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.22s var(--ease), opacity 0.22s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}

/* 移动端抽屉导航 */
.nav--drawer {
  display: block;
  position: fixed;
  inset: 64px 0 auto 0;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 8px var(--gutter) 22px;
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease),
    visibility 0.2s;
  max-height: calc(100vh - 64px);
  overflow-y: auto;
}

.nav--drawer.is-open {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.nav__list {
  display: flex;
  flex-direction: column;
}

.nav__list a {
  display: block;
  padding: 14px 2px;
  font-size: 15px;
  color: var(--ink);
  border-bottom: 1px solid var(--line-soft);
}

.nav__list a[aria-current="page"] {
  color: var(--brass-deep);
}

.nav__cta {
  margin-top: 18px;
  display: flex;
}

/* ---------- 首屏 ---------- */
.hero {
  position: relative;
  background: var(--ink);
  color: rgba(244, 244, 239, 0.86);
  overflow: hidden;
  isolation: isolate;
}

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

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 58% center;
}

.hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
      105deg,
      rgba(9, 24, 26, 0.9) 0%,
      rgba(9, 24, 26, 0.64) 45%,
      rgba(9, 24, 26, 0.22) 100%
    ),
    linear-gradient(to top, rgba(9, 24, 26, 0.9), rgba(9, 24, 26, 0.12));
}

.hero__inner {
  position: relative;
  padding-top: 74px;
  padding-bottom: 0;
  min-height: 72vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: rgba(244, 244, 239, 0.72);
  margin-bottom: 22px;
}

.hero__eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--brass);
}

.hero h1 {
  color: #f7f7f2;
  max-width: 15em;
}

.hero__lead {
  max-width: 36em;
  margin-top: 22px;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(244, 244, 239, 0.78);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero__stats {
  position: relative;
  margin-top: 62px;
  padding-bottom: 26px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px 18px;
  border-top: 1px solid var(--line-dark);
  padding-top: 24px;
}

.stat__num {
  font-size: clamp(1.5rem, 5vw, 1.9rem);
  font-weight: 600;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  display: flex;
  align-items: baseline;
  gap: 4px;
  line-height: 1.2;
}

.stat__num small {
  font-size: 0.62em;
  font-weight: 500;
  color: rgba(244, 244, 239, 0.6);
  letter-spacing: 0;
}

.stat__label {
  font-size: 12px;
  color: rgba(244, 244, 239, 0.62);
  letter-spacing: 0.04em;
  margin-top: 4px;
}

/* ---------- 产品卡片 ---------- */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease),
    transform 0.25s var(--ease);
  overflow: hidden;
}

.card:hover {
  border-color: rgba(17, 42, 44, 0.4);
  box-shadow: 0 12px 28px -18px rgba(17, 42, 44, 0.55);
  transform: translateY(-2px);
}

.card[hidden] {
  display: none;
}

.card__media {
  background: #eceeeb;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  position: relative;
}

.card__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
  transition: transform 0.4s var(--ease);
}

.card:hover .card__media img {
  transform: scale(1.03);
}

.card__body {
  padding: 16px 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.card__code {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--brass-deep);
  font-variant-numeric: tabular-nums;
}

.card__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
  margin: 0;
}

.card__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}

/* 参数表：标签 + 点线引导 + 数值 */
.spec {
  margin-top: auto;
  border-top: 1px dashed var(--line);
  padding-top: 10px;
  display: grid;
  gap: 5px;
}

.spec__row {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 12px;
  line-height: 1.6;
}

.spec__k {
  color: var(--muted-2);
  flex: none;
}

.spec__leader {
  flex: 1;
  border-bottom: 1px dotted rgba(17, 42, 44, 0.22);
  transform: translateY(-3px);
  min-width: 8px;
}

.spec__v {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  text-align: right;
  flex: none;
}

.card--row {
  flex-direction: column;
}

/* ---------- 产品筛选 ---------- */
.filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.filter__btn {
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease);
}

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

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

.filter__count {
  font-variant-numeric: tabular-nums;
  opacity: 0.55;
  margin-left: 6px;
  font-size: 12px;
}

.filter__status {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 18px;
}

/* ---------- 优势 / 三列 ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.feature {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.feature__icon {
  width: 30px;
  height: 30px;
  color: var(--brass-deep);
  margin-bottom: 12px;
}

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

.feature p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 解决方案 ---------- */
.solution {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding: 28px 0;
  border-top: 1px solid var(--line);
}

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

.solution__media {
  overflow: hidden;
  border-radius: var(--radius);
  background: #e8eae6;
  aspect-ratio: 4 / 3;
}

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

.solution__body h3 {
  font-size: 19px;
  margin-bottom: 10px;
}

.solution__body > p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
}

.solution__list {
  margin-top: 14px;
  display: grid;
  gap: 7px;
}

.solution__list li {
  display: flex;
  gap: 9px;
  font-size: 13px;
  color: var(--text);
  line-height: 1.7;
}

.solution__list li::before {
  content: "";
  flex: none;
  width: 5px;
  height: 5px;
  margin-top: 9px;
  background: var(--brass);
}

/* ---------- 时间轴 ---------- */
.timeline {
  --tl-time: 68px;
  --tl-axis: 22px;
  display: grid;
  gap: 0;
  margin-top: 8px;
}

.tl-row {
  display: grid;
  grid-template-columns: var(--tl-time) var(--tl-axis) minmax(0, 1fr);
  align-items: start;
  column-gap: 4px;
  padding-bottom: 26px;
  position: relative;
}

.tl-row__time {
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: var(--brass-deep);
  letter-spacing: 0.02em;
  padding-top: 2px;
}

.tl-row__axis {
  position: relative;
  align-self: stretch;
  justify-self: center;
  width: 100%;
  display: flex;
  justify-content: center;
}

.tl-row__dot {
  width: 9px;
  height: 9px;
  border: 1px solid var(--brass);
  background: var(--paper);
  transform: rotate(45deg);
  margin-top: 5px;
  flex: none;
  z-index: 1;
}

.tl-row__axis::before {
  content: "";
  position: absolute;
  top: 14px;
  bottom: -26px;
  left: 50%;
  width: 1px;
  background: var(--line);
  transform: translateX(-50%);
}

.tl-row:last-child .tl-row__axis::before {
  display: none;
}

.tl-row__body h3 {
  font-size: 15px;
  margin-bottom: 4px;
}

.tl-row__body p {
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
  margin: 0;
}

/* ---------- 新闻 ---------- */
.news-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.news-item {
  border-bottom: 1px solid var(--line);
}

.news-item > a {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 20px 0;
  transition: background-color 0.2s var(--ease);
}

.news-item > a:hover h3 {
  color: var(--brass-deep);
}

.news-item__date {
  font-size: 12px;
  color: var(--muted-2);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

.news-item h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  transition: color 0.2s var(--ease);
}

.news-item p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
  margin: 0;
}

.news-item__tag {
  font-size: 11px;
  color: var(--brass-deep);
  border: 1px solid rgba(169, 133, 79, 0.38);
  padding: 1px 7px;
  border-radius: 2px;
  align-self: start;
  white-space: nowrap;
}

/* ---------- CTA 条 ---------- */
.cta-band {
  background: var(--ink);
  color: rgba(244, 244, 239, 0.78);
  padding: 46px 0;
}

.cta-band__inner {
  display: grid;
  gap: 22px;
}

.cta-band h2 {
  color: var(--paper);
  font-size: clamp(1.35rem, 3.6vw, 1.85rem);
  max-width: 22em;
}

.cta-band p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 244, 239, 0.7);
  margin-top: 10px;
}

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

/* ---------- 页脚 ---------- */
.site-foot {
  background: #0d2022;
  color: rgba(244, 244, 239, 0.62);
  padding: 52px 0 26px;
  font-size: 13px;
  line-height: 1.8;
}

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

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

.foot-brand .brand__cn {
  color: var(--paper);
}

.foot-brand .brand__mark {
  height: 44px;
}

.foot-brand .brand__en {
  color: rgba(244, 244, 239, 0.45);
}

.foot-brand__desc {
  margin-top: 14px;
  max-width: 30em;
  color: rgba(244, 244, 239, 0.6);
}

.foot-col h3 {
  color: var(--paper);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.foot-col ul {
  display: grid;
  gap: 8px;
}

.foot-contact li {
  display: flex;
  gap: 8px;
}

.foot-contact span:first-child {
  color: rgba(244, 244, 239, 0.4);
  flex: none;
}

.foot-bar {
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid var(--line-dark);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(244, 244, 239, 0.42);
}

/* ---------- 内页首屏 ---------- */
.page-head {
  padding: 46px 0 34px;
  background: var(--paper-2);
  border-bottom: 1px solid var(--line-soft);
}

.crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted-2);
  margin-bottom: 20px;
}

.crumb a {
  color: var(--muted);
}

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

.crumb__sep {
  color: var(--muted-2);
  opacity: 0.6;
}

.page-head h1 {
  font-size: clamp(1.7rem, 5.4vw, 2.6rem);
  max-width: 22em;
}

.page-head__lead {
  margin-top: 14px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
  max-width: 62ch;
}

/* ---------- 正文排版 ---------- */
.prose {
  max-width: 46em;
}

.prose p {
  font-size: 15.5px;
  line-height: 2;
  color: #2a3532;
  margin-bottom: 1.25em;
}

.prose h2 {
  font-size: 1.35rem;
  margin: 2.2em 0 0.7em;
}

.prose h3 {
  font-size: 1.1rem;
  margin: 1.8em 0 0.6em;
}

.prose ul {
  margin: 0 0 1.4em;
  display: grid;
  gap: 8px;
}

.prose ul li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.9;
}

.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 5px;
  height: 5px;
  background: var(--brass);
}

.prose figure {
  margin: 2em 0;
}

.prose figure img {
  border-radius: var(--radius);
  width: 100%;
}

.prose figcaption {
  font-size: 12.5px;
  color: var(--muted-2);
  margin-top: 10px;
  line-height: 1.7;
}

.prose blockquote {
  margin: 1.8em 0;
  padding: 4px 0 4px 20px;
  border-left: 2px solid var(--brass);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: 12.5px;
  color: var(--muted-2);
  margin-top: 16px;
  font-variant-numeric: tabular-nums;
}

.article-foot {
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

/* ---------- 联系页 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.info-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.info-list__item {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 4px;
}

.info-list__k {
  font-size: 12px;
  color: var(--muted-2);
  letter-spacing: 0.04em;
}

.info-list__v {
  font-size: 15px;
  color: var(--ink);
  line-height: 1.7;
  word-break: break-word;
}

.info-list__v a:hover {
  color: var(--brass-deep);
}

.form {
  display: grid;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 20px 26px;
}

.form__row {
  display: grid;
  gap: 16px;
}

.field {
  display: grid;
  gap: 7px;
}

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

.field label .req {
  color: var(--brass-deep);
  margin-left: 3px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 46px;
  padding: 10px 13px;
  font-family: inherit;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--ink-3);
  background: #fff;
}

.field__err {
  font-size: 12px;
  color: #a3382b;
  min-height: 0;
}

.form__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  justify-content: space-between;
}

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

.form__status {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-3);
  min-height: 0;
}

.map-card {
  border: 1px solid var(--line);
  background: var(--paper-2);
  border-radius: var(--radius);
  padding: 22px;
  display: grid;
  gap: 12px;
}

.map-card h3 {
  font-size: 15px;
}

.map-card p {
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.8;
}

.map-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 表格 ---------- */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  min-width: 520px;
}

.spec-table caption {
  text-align: left;
  font-size: 12px;
  color: var(--muted-2);
  padding-bottom: 10px;
}

.spec-table th,
.spec-table td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.spec-table th {
  background: var(--paper-2);
  font-weight: 500;
  color: var(--ink);
  white-space: nowrap;
}

.spec-table td {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* ---------- 小屏后续区块（≥768px） ---------- */
@media (min-width: 768px) {
  :root {
    --gutter: 32px;
    --section-y: 80px;
  }

  body {
    font-size: 16px;
  }

  .site-head__inner {
    min-height: 76px;
  }

  .brand__mark {
    height: 44px;
  }

  .brand__cn {
    font-size: 20px;
  }

  .brand__en {
    font-size: 10px;
  }

  .nav-toggle {
    display: none;
  }

  .head-cta {
    display: inline-flex;
    min-height: 40px;
    padding: 0 18px;
    font-size: 13px;
  }

  .nav {
    display: block;
    flex: 1;
  }

  .nav--drawer {
    position: static;
    inset: auto;
    max-height: none;
    overflow: visible;
    padding: 0;
    background: transparent;
    border: 0;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav__list {
    flex-direction: row;
    justify-content: center;
    gap: 4px;
  }

  .nav__list a {
    padding: 10px 14px;
    font-size: 14px;
    border-bottom: 0;
    position: relative;
  }

  .nav__list a::after {
    content: "";
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 4px;
    height: 1px;
    background: var(--brass);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.22s var(--ease);
  }

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

  .nav__cta {
    display: none;
  }

  .head-tel {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 13px;
    color: var(--ink);
    font-variant-numeric: tabular-nums;
    padding: 0 8px;
  }

  .head-tel svg {
    width: 15px;
    height: 15px;
    color: var(--brass-deep);
  }

  .hero__inner {
    min-height: 78vh;
    padding-top: 90px;
  }

  .hero__stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    padding-top: 30px;
    margin-top: 76px;
  }

  .product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .product-grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }

  .solution {
    grid-template-columns: 1.05fr 1fr;
    gap: 40px;
    align-items: center;
    padding: 40px 0;
  }

  .solution--flip .solution__media {
    order: 2;
  }

  .foot-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr 1.15fr;
    gap: 48px;
    align-items: start;
  }

  .form {
    padding: 30px 28px 32px;
  }

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

  .timeline {
    --tl-time: 96px;
    --tl-axis: 34px;
  }

  .tl-row {
    padding-bottom: 34px;
  }

  .tl-row__body h3 {
    font-size: 16px;
  }

  .news-item > a {
    grid-template-columns: 96px 1fr auto;
    gap: 20px;
    align-items: baseline;
    padding: 24px 4px;
  }

  .news-item__date {
    padding-top: 3px;
  }

  .cta-band {
    padding: 62px 0;
  }

  .cta-band__inner {
    grid-template-columns: 1.4fr 1fr;
    align-items: center;
    gap: 40px;
  }

  .cta-band__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1080px) {
  :root {
    --section-y: 104px;
    --gutter: 40px;
  }

  .product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .card__media {
    aspect-ratio: 5 / 4;
  }

  .hero__inner {
    min-height: 82vh;
    padding-top: 104px;
  }
}

@media (min-width: 1280px) {
  .product-grid--wide {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 动效克制处理 ---------- */
/* 只有确认 JS 可用时才隐藏内容，避免脚本被拦截后整页空白 */
html.js .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

html.js .reveal.is-in {
  opacity: 1;
  transform: none;
}

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

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

  html.js .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 打印 ---------- */
@media print {
  .site-head,
  .site-foot,
  .cta-band,
  .nav-toggle,
  .skip-link {
    display: none !important;
  }

  body {
    background: #fff;
    color: #111;
    font-size: 11pt;
  }

  .hero {
    background: #fff;
    color: #111;
  }

  .hero__media {
    display: none;
  }

  .card,
  .solution {
    break-inside: avoid;
  }
}


/* ===== 产品分类与多品类内容（2026-11） ===== */
.cat-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cat-nav a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--ink);
  text-decoration: none;
}

.cat-nav a:hover {
  border-color: var(--brass);
  color: var(--brass-deep);
}

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

.section[id] {
  scroll-margin-top: 88px;
}

.cat-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.cat-head__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--brass-deep);
  font-variant-numeric: tabular-nums;
}

.cat-head h2 {
  font-size: 1.35rem;
  margin: 0;
}

.cat-head__meta {
  margin-left: auto;
  font-size: 12px;
  color: var(--muted-2);
}

.cat-intro {
  max-width: 760px;
  margin: 16px 0 26px;
  color: var(--muted);
}

.brand-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 940px;
}

.brand-cloud span {
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12.5px;
  color: var(--ink-2);
  background: var(--card);
}

.brand-cloud__title {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--brass-deep);
  margin-bottom: 12px;
}


/* ===== 版式修正（2026-11 内容扩充） ===== */
/* 四类服务范围：2×2，避免末行落单 */
.feature-grid--2 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .feature-grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px 40px;
  }
}

/* 解决方案整段排列时，首块不重复顶部横线 */
.section--solutions .solution:first-child {
  border-top: 0;
  padding-top: 0;
}

/* 正文尾注（不是 flex 条，保持正常段落） */
.article-note {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
}

.article-note a {
  color: var(--brass-deep);
  border-bottom: 1px solid currentColor;
}