@charset "utf-8";
/* ==========================================================================
   凯奥化工 KaiaoChem · 官方网站样式表
   HTML5 + CSS3 纯静态实现，零外部依赖（无 CDN / 无第三方框架 / 无 JS 库）
   --------------------------------------------------------------------------
   目录
   01. 设计令牌 (Design Tokens)
   02. 基础重置与排版
   03. 布局容器与栅格
   04. 通用元件（按钮 / 标签 / 卡片 / 图形面板）
   05. 顶部信息条与导航
   06. 首屏 Hero
   07. 首页各版块
   08. 内页公共（横幅 / 面包屑 / 筛选）
   09. 内页版块（历程 / 联系 / 新闻）
   10. 页脚
   11. 响应式
   ========================================================================== */

/* ---------- 01. 设计令牌 -------------------------------------------------- */
:root {
  /* 品牌色 —— 深海蓝为主，环保绿为辅 */
  --navy-900: #072236;
  --navy-800: #0a2c4d;
  --navy-700: #0b3c6e;
  --blue-600: #1268b3;
  --teal-500: #0e8fa8;
  --green-600: #0f8f55;
  --green-500: #15a263;
  --green-400: #5fd39b;
  --green-50: #e8f6ef;
  --blue-50: #eaf3fb;

  /* 状态色（表单反馈：警示 / 报错 / 处理中） */
  --warn-600: #b26a00;
  --warn-500: #e08c00;
  --warn-50: #fdf4e3;
  --danger-600: #c0392b;
  --danger-50: #fdeceb;

  /* 中性色 */
  --ink: #0f1f33;
  --title: #0b2a4a;
  --body: #5b7391;
  --muted: #93a3b8;
  --line: #e1eaf2;
  --line-soft: #edf2f7;
  --surface: #f7fafc;
  --white: #ffffff;

  /* 圆角与阴影 */
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 18px;
  --r-xl: 24px;
  --shadow-sm: 0 1px 2px rgba(10, 44, 77, 0.06);
  --shadow-md: 0 10px 28px -12px rgba(10, 44, 77, 0.2);
  --shadow-lg: 0 28px 60px -24px rgba(10, 44, 77, 0.32);

  /* 尺寸 */
  --maxw: 1200px;
  --gutter: clamp(20px, 4vw, 40px);
  --sec-y: clamp(56px, 7vw, 96px);

  /* 字体 */
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans CN",
    "Noto Sans SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑",
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Segoe UI Semibold", "Segoe UI",
    Arial, sans-serif;

  /* 渐变 */
  --grad-brand: linear-gradient(115deg, #1268b3 0%, #0e8fa8 55%, #15a263 100%);
  --grad-deep: linear-gradient(120deg, #0a2c4d 0%, #0e4a7c 55%, #0c6673 100%);
  --grad-mist: linear-gradient(135deg, #eaf3fb 0%, #e8f6ef 100%);
}

/* ---------- 02. 基础重置与排版 -------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--white);
  color: var(--body);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--title);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.01em;
}

h1 {
  font-size: clamp(32px, 4.4vw, 54px);
  line-height: 1.18;
}
h2 {
  font-size: clamp(26px, 3vw, 36px);
}
h3 {
  font-size: clamp(20px, 2.2vw, 26px);
}
h4 {
  font-size: 19px;
}

p {
  margin: 0;
}

a {
  color: var(--blue-600);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
  color: var(--green-500);
}

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

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

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--green-500);
  outline-offset: 3px;
  border-radius: 4px;
}

/* 锚点定位时避开吸顶导航 */
[id] {
  scroll-margin-top: 108px;
}

.anchor {
  display: block;
  height: 0;
}

::selection {
  background: rgba(21, 162, 99, 0.22);
}

.num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
}

/* ---------- 03. 布局容器与栅格 -------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

.section--surface {
  background: var(--surface);
}

.section--dark {
  background: var(--navy-900);
  background-image: linear-gradient(120deg, #061b2b 0%, #0a3345 100%);
  color: #8fb3ce;
}

.grid {
  display: grid;
  gap: 20px;
}

.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

/* 区块标题行 */
.sec-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: clamp(32px, 4vw, 48px);
}

.sec-head__title {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--blue-600);
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow--green {
  color: var(--green-500);
}

.section--dark .eyebrow {
  color: var(--green-400);
}

.lead {
  max-width: 430px;
  font-size: 14px;
  line-height: 1.85;
}

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--white);
}

.more-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: none;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
}

.more-link svg {
  transition: transform 0.24s ease;
}

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

/* ---------- 04. 通用元件 -------------------------------------------------- */
/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 30px;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  background: var(--green-500);
  color: var(--white);
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  background: var(--green-600);
  color: var(--white);
  box-shadow: 0 12px 28px -12px rgba(15, 143, 85, 0.75);
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn--blue {
  background: var(--blue-600);
}
.btn--blue:hover {
  background: #0e5aa0;
  box-shadow: 0 12px 28px -12px rgba(18, 104, 179, 0.75);
}

.btn--ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.32);
  color: #d6e6f2;
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.6);
  color: var(--white);
  box-shadow: none;
}

.btn--light {
  background: var(--white);
  color: var(--navy-700);
}
.btn--light:hover {
  background: var(--green-50);
  color: var(--navy-700);
  box-shadow: var(--shadow-md);
}

.btn--sm {
  padding: 12px 22px;
  font-size: 14px;
}

/* 标签 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--green-400);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
}

.badge__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 2px solid var(--green-400);
  box-shadow: 0 0 0 3px rgba(95, 211, 155, 0.18);
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--body);
  font-size: 13px;
  line-height: 1.4;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.chip:hover,
.chip.is-active {
  border-color: var(--blue-600);
  background: var(--blue-600);
  color: var(--white);
}

/* 卡片 */
.card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--white);
  transition: transform 0.24s ease, box-shadow 0.24s ease,
    border-color 0.24s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(18, 104, 179, 0.28);
  box-shadow: var(--shadow-md);
}

.card__icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 15px;
  background: var(--blue-50);
  color: var(--blue-600);
}

.card__icon--green {
  background: var(--green-50);
  color: var(--green-500);
}

.card h4 {
  margin: 0;
}

.card p {
  font-size: 13px;
  line-height: 1.85;
  color: var(--muted);
}

.card__more {
  margin-top: auto;
  padding-top: 6px;
  font-size: 13px;
  font-weight: 500;
}

/* 图形面板（用于替代实拍图的设计化视觉） */.figure {
  position: relative;
  display: grid;
  overflow: hidden;
  border-radius: var(--r-lg);
  background: var(--grad-deep);
  color: var(--white);
  isolation: isolate;
}

.figure::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    rgba(255, 255, 255, 0.16) 1px,
    transparent 1px
  );
  background-size: 24px 24px;
  opacity: 0.7;
  z-index: -1;
}

.figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    120% 90% at 12% 6%,
    rgba(95, 211, 155, 0.3),
    transparent 62%
  );
  z-index: -1;
}

.figure--light {
  background: var(--grad-mist);
  color: var(--navy-700);
}

.figure--light::before {
  background-image: radial-gradient(
    rgba(18, 104, 179, 0.16) 1px,
    transparent 1px
  );
}

.figure--light::after {
  background: radial-gradient(
    120% 90% at 88% 96%,
    rgba(18, 104, 179, 0.14),
    transparent 60%
  );
}

.figure__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  height: 100%;
  padding: 32px;
  text-align: center;
}

.figure--compact .figure__inner {
  gap: 10px;
  padding: 22px;
}

.figure--compact .figure__icon {
  width: 34px;
  height: 34px;
}

.figure--compact .figure__label {
  display: none;
}

.figure--compact .figure__title {
  font-size: 14px;
}

.figure__icon {
  opacity: 0.92;
}

.figure__label {
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.78;
}


/* ---------- 照片版图块（真实照片填充） ---------- */
.figure--photo {
  background-color: #0d2538;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

/* 照片上不再叠加点阵 / 光晕 */
.figure--photo::before,
.figure--photo::after {
  display: none;
}

/* 文案移到画面左下，并铺一层暗色渐变蒙版保证可读性 */
.figure--photo .figure__inner {
  align-items: flex-start;
  justify-content: flex-end;
  gap: 6px;
  padding: 26px 28px;
  text-align: left;
  background: linear-gradient(
    to top,
    rgba(4, 18, 32, 0.86) 0%,
    rgba(4, 18, 32, 0.5) 40%,
    rgba(4, 18, 32, 0) 74%
  );
}

.figure--photo .figure__label {
  color: rgba(255, 255, 255, 0.7);
  opacity: 1;
}

.figure--photo .figure__title {
  color: #ffffff;
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.42);
}

/* 紧凑照片（关于版块两张小图） */
.figure--photo.figure--compact .figure__inner {
  padding: 18px 20px;
}

.figure--photo.figure--compact .figure__title {
  font-size: 14px;
}

/* 应用领域大图（首页 app-bento 顶部，自带玻璃编号标签） */
.figure--app {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  min-height: 250px;
  padding: 32px;
}

.figure--app::after {
  content: "";
  position: absolute;
  inset: 0;
  display: block;
  z-index: 0;
  background: linear-gradient(
    to top,
    rgba(4, 18, 32, 0.88) 0%,
    rgba(4, 18, 32, 0.52) 42%,
    rgba(4, 18, 32, 0.16) 100%
  );
}

.figure--app > * {
  position: relative;
  z-index: 1;
}

.figure--app .app-card__idx {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.26);
  color: #ffffff;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.figure--app h3 {
  color: #ffffff;
}

.figure--app > div p {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
  line-height: 1.9;
}

/* 数据 */
.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
}

.stat__num {
  color: var(--blue-600);
  font-family: var(--font-num);
  font-size: clamp(28px, 3vw, 34px);
  font-weight: 700;
  line-height: 1.1;
  white-space: nowrap;
}

.stat__num .unit {
  margin-left: 3px;
  font-size: 0.5em;
  font-weight: 600;
  letter-spacing: 0;
}

.stat__num--green {
  color: var(--green-500);
}

.stat__label {
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
}

/* 徽章式大数值 */
.feature-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  padding: 36px;
  border-radius: var(--r-lg);
  background: var(--grad-mist);
}

.feature-panel__num {
  color: var(--blue-600);
  font-family: var(--font-num);
  font-size: clamp(48px, 6vw, 64px);
  font-weight: 700;
  line-height: 1;
}

/* 列表行 */
.row-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.row-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px 24px;
  border-radius: var(--r-md);
  background: var(--surface);
}

.row-item__icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  color: var(--blue-600);
}

.row-item h4 {
  font-size: 16px;
}

.row-item p {
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
}

/* 深色区块内的列表行 */
.section--dark .row-item {
  background: transparent;
  padding: 0;
  align-items: flex-start;
  gap: 20px;
}

.section--dark .row-item__icon {
  width: 24px;
  height: 24px;
  color: var(--green-400);
}

.section--dark .row-item p {
  color: #8fb3ce;
  line-height: 1.85;
}

.divider {
  height: 1px;
  background: #17374d;
}

/* 屏幕阅读器可见、视觉隐藏 */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* 左右交替图文版块 */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(32px, 4vw, 60px);
}

.split + .split {
  margin-top: clamp(44px, 5vw, 76px);
}

.split--reverse .split__media {
  order: -1;
}

.split__body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.split__body p {
  line-height: 1.95;
}

.split__media .figure {
  min-height: 300px;
}

.split__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

/* ---------- 05. 顶部信息条与导航 ----------------------------------------- */
.topbar {
  background: var(--navy-800);
  color: #9fc0de;
  font-size: 12px;
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 40px;
}

.topbar a {
  color: #ffffff;
}

.topbar a:hover {
  color: var(--green-400);
}

.topbar__right {
  display: flex;
  align-items: center;
  gap: 26px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line-soft);
  transition: box-shadow 0.24s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 10px 30px -18px rgba(10, 44, 77, 0.4);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 84px;
}

/* 品牌标识 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: none;
}

.brand__mark {
  flex: none;
  width: 42px;
  height: 42px;
}

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

.brand__cn {
  color: var(--title);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.brand__en {
  color: var(--blue-600);
  font-family: var(--font-num);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.26em;
  text-transform: uppercase;
}

/* 主导航 */
.nav__menu {
  display: flex;
  align-items: center;
  gap: 34px;
  margin-left: auto;
}

.nav__menu a {
  position: relative;
  color: #24384f;
  font-size: 15px;
  white-space: nowrap;
}

.nav__menu a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -26px;
  height: 2px;
  background: var(--blue-600);
  transform: scaleX(0);
  transition: transform 0.24s ease;
}

.nav__menu a:hover,
.nav__menu a[aria-current="page"] {
  color: var(--blue-600);
}

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

.nav__actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: none;
}

.nav__search {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #24384f;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.nav__search:hover {
  background: var(--blue-50);
  color: var(--blue-600);
}

/* 汉堡按钮 */
.nav__toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  cursor: pointer;
}

.nav__toggle span {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  border-radius: 2px;
  background: var(--navy-700);
  transition: transform 0.24s ease, opacity 0.24s ease;
}

.nav__toggle span::before,
.nav__toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--navy-700);
  transition: transform 0.24s ease;
}

.nav__toggle span::before {
  top: -6px;
}
.nav__toggle span::after {
  top: 6px;
}

/* ---------- 06. 首屏 Hero ------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--grad-deep);
  color: #a9c4dc;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(
    rgba(255, 255, 255, 0.14) 1px,
    transparent 1px
  );
  background-size: 26px 26px;
  opacity: 0.6;
}

.hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  right: -12%;
  top: -30%;
  width: 70%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(95, 211, 155, 0.28) 0%,
    rgba(95, 211, 155, 0) 62%
  );
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(36px, 5vw, 56px);
  padding-block: clamp(56px, 7vw, 76px);
}

.hero__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
}

.hero__title {
  color: var(--white);
  font-size: clamp(34px, 4.4vw, 54px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.hero__title em {
  display: block;
  color: var(--green-400);
  font-style: normal;
}

.hero__text {
  max-width: 34em;
  font-size: 16px;
  line-height: 1.95;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.hero__trust {
  font-size: 13px;
  color: #7fa3c4;
}

.hero__visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero__figure {
  min-height: 340px;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.hero__stat {
  padding: 18px;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.hero__stat .num {
  display: block;
  color: var(--white);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
}

.hero__stat--accent .num {
  color: var(--green-400);
}

.hero__stat span.label {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  color: #8fb3d2;
}

/* ---------- 07. 首页各版块 ------------------------------------------------ */
/* 合作伙伴 */
.partners {
  background: var(--surface);
  padding-block: 30px;
}

.partners__label {
  margin-bottom: 18px;
  color: var(--muted);
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.partners__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px 32px;
}

.partners__list span {
  color: #7c8fa3;
  font-size: 15px;
  transition: color 0.2s ease;
}

.partners__list span:hover {
  color: var(--blue-600);
}

/* 公司简介 */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 552px) minmax(0, 1fr);
  align-items: center;
  gap: clamp(36px, 5vw, 64px);
}

.about-figs {
  display: grid;
  gap: 16px;
}

.about-figs__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.about-figs .figure {
  min-height: 330px;
}

.about-figs__row .figure {
  min-height: 158px;
}

.about-copy {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.about-copy__title {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* 应用领域 */
.app-bento {
  display: grid;
  gap: 20px;
}

.app-bento__top {
  display: grid;
  grid-template-columns: minmax(0, 720fr) minmax(0, 460fr);
  gap: 20px;
}

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

.app-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 32px;
  border-radius: var(--r-lg);
  background: #f5f8fb;
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.app-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.app-card__idx {
  color: var(--muted);
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.app-card p {
  font-size: 14px;
  line-height: 1.9;
  color: #7c8fa3;
}

.app-card--dark {
  background: var(--grad-deep);
  color: #a9c4dc;
  min-height: 250px;
}

.app-card--dark h3 {
  color: var(--white);
}

.app-card--dark .app-card__idx {
  color: var(--green-400);
}

.app-card--dark p {
  color: #a9c4dc;
}

.app-card--green {
  background: var(--green-50);
  min-height: 250px;
}

.app-card--green .app-card__idx {
  color: var(--green-500);
}

.app-card--green p {
  color: #4f7d6b;
}

.app-card--dark,
.app-card--green {
  justify-content: space-between;
}

.tag-band {
  padding: 24px 32px;
  border-radius: var(--r-lg);
  background: #f5f8fb;
}

.tag-band__label {
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
}

.tag-band__list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 企业文化（深色） */
.culture {
  display: grid;
  grid-template-columns: minmax(0, 500px) minmax(0, 1fr);
  gap: clamp(40px, 6vw, 72px);
  align-items: start;
}

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

.culture__title h2 {
  font-size: clamp(28px, 3.2vw, 34px);
  line-height: 1.45;
}

.culture__sign {
  margin-top: 18px;
  color: #6e93b0;
  font-size: 14px;
}

.culture__list {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

/* 荣誉资质 */
.honor-grid {
  display: grid;
  grid-template-columns: minmax(0, 520px) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

/* 联系转化条 */
.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  padding-block: clamp(48px, 6vw, 72px);
}

.cta-band__text {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 640px;
}

.cta-band__actions {
  display: flex;
  align-items: center;
  gap: 32px;
  flex: none;
}

.phone-block {
  display: flex;
  align-items: center;
  gap: 14px;
}

.phone-block svg {
  flex: none;
  color: var(--green-400);
}

.phone-block .label {
  display: block;
  color: #8fb3d2;
  font-size: 12px;
}

.phone-block .num {
  display: block;
  color: var(--white);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
}

/* ---------- 08. 内页公共 -------------------------------------------------- */
.page-banner {
  position: relative;
  overflow: hidden;
  background: var(--grad-deep);
  color: #a9c4dc;
  isolation: isolate;
}

.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(
    rgba(255, 255, 255, 0.14) 1px,
    transparent 1px
  );
  background-size: 26px 26px;
  opacity: 0.55;
}

.page-banner::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: -8%;
  bottom: -60%;
  width: 52%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(95, 211, 155, 0.26) 0%,
    rgba(95, 211, 155, 0) 62%
  );
}

.page-banner__inner {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-block: clamp(38px, 5vw, 56px);
}

.page-banner h1 {
  color: var(--white);
  font-size: clamp(30px, 3.6vw, 40px);
}

.page-banner p {
  max-width: 60em;
  font-size: 15px;
  line-height: 1.9;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: #8fb3d2;
  font-size: 13px;
}

.breadcrumb a {
  color: #8fb3d2;
}

.breadcrumb a:hover {
  color: var(--green-400);
}

.breadcrumb span.sep {
  opacity: 0.6;
}

.filter-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--line-soft);
}

.filter-bar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding-block: 22px;
}

.filter-bar button {
  cursor: pointer;
}

/* 分页 */
.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 40px;
}

.pager a,
.pager span {
  display: grid;
  place-items: center;
  min-width: 40px;
  height: 40px;
  padding-inline: 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--white);
  color: var(--body);
  font-size: 14px;
  transition: all 0.2s ease;
}

.pager .is-current {
  border-color: var(--blue-600);
  background: var(--blue-600);
  color: var(--white);
  font-weight: 600;
}

.pager a:hover {
  border-color: var(--blue-600);
  color: var(--blue-600);
}

/* ---------- 09. 内页版块 -------------------------------------------------- */
/* 发展历程 */
.timeline {
  position: relative;
  display: grid;
  gap: 0;
  padding-left: 30px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--blue-600), var(--green-500));
  opacity: 0.28;
}

.timeline__item {
  position: relative;
  padding: 0 0 34px 0;
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 7px;
  width: 14px;
  height: 14px;
  border: 3px solid var(--white);
  border-radius: 50%;
  background: var(--blue-600);
  box-shadow: 0 0 0 1px var(--line);
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__year {
  color: var(--blue-600);
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 700;
}

.timeline__item h4 {
  margin-top: 4px;
  font-size: 17px;
}

.timeline__item p {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
}

/* 联系我们 */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: clamp(32px, 4vw, 56px);
  align-items: start;
}

.contact-list {
  display: grid;
  gap: 20px;
}

.contact-item {
  display: flex;
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--white);
}

.contact-item__icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 13px;
  background: var(--blue-50);
  color: var(--blue-600);
}

.contact-item h4 {
  font-size: 15px;
}

.contact-item p {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.85;
}

.contact-item .num {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy-700);
}

/* 表单 */
.form {
  position: relative; /* 让蜜罐字段的绝对定位被约束在表单内 */
  display: grid;
  gap: 18px;
}

.field {
  display: grid;
  gap: 8px;
}

.field label {
  font-size: 13px;
  font-weight: 500;
  color: var(--title);
}

.field label .req {
  color: var(--green-500);
}

.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--white);
  font-size: 14px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field textarea {
  min-height: 132px;
  resize: vertical;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--blue-600);
  box-shadow: 0 0 0 4px rgba(18, 104, 179, 0.12);
  outline: none;
}

.field__hint {
  font-size: 12px;
  color: var(--muted);
}

.form__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.form__note {
  font-size: 12px;
  color: var(--muted);
}

/* 表单状态反馈：默认是「提示 / 失败」，.is-ok 才是成功 */
.form-status {
  display: none;
  padding: 14px 18px;
  border-radius: var(--r-sm);
  background: var(--warn-50);
  color: var(--warn-600);
  border-left: 3px solid var(--warn-500);
  font-size: 14px;
  line-height: 1.7;
}

.form-status.is-visible {
  display: block;
}

.form-status.is-ok {
  background: var(--green-50);
  color: var(--green-600);
  border-left-color: var(--green-500);
}

/* 蜜罐字段：对真实用户完全不可见，但机器人会去填 —— 不要用 display:none，
   部分爬虫会跳过 display:none 的字段 */
.form__trap {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* 提交中：按钮变灰并显示转圈 */
.btn.is-loading,
.btn[disabled] {
  opacity: 0.72;
  cursor: not-allowed;
  pointer-events: none;
}

.btn.is-loading::after {
  content: "";
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid currentColor;
  border-top-color: transparent;
  animation: btn-spin 0.7s linear infinite;
}

@keyframes btn-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn.is-loading::after {
    animation-duration: 2s;
  }
}

/* ---------- 联系地图（腾讯地图嵌入） ---------- */
.map-embed {
  display: grid;
  gap: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
}

.map-embed__frame {
  position: relative;
  display: block;
  width: 100%;
  /* 与 SVG viewBox 完全同比例：任何宽度下都不裁切、不留白。
     注意：不要再加 min-height —— 那会打破比例并让 slice 反过来裁掉两侧内容。 */
  aspect-ratio: 1200 / 420;
  background: #e9eff5;
  overflow: hidden;
}

/* 矢量示意地图（自绘 SVG，零外部依赖） */
.map-embed__frame .vmap {
  display: block;
  width: 100%;
  height: 100%;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.map-embed:hover .map-embed__frame .vmap {
  transform: scale(1.025);
}

/* 地图右下角的跳转提示 */
.map-embed__hint {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 19px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 8px 24px -10px rgba(10, 44, 77, 0.5);
  color: var(--navy-700);
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: background 0.22s ease, color 0.22s ease;
}

.map-embed__hint svg {
  flex: none;
  width: 15px;
  height: 15px;
  color: var(--green-500);
  transition: color 0.22s ease;
}

.map-embed:hover .map-embed__hint {
  background: var(--green-500);
  color: var(--white);
}

.map-embed:hover .map-embed__hint svg {
  color: var(--white);
}

.map-embed__caption {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 24px;
  padding: 22px 26px;
  background: var(--white);
}

.map-embed__caption h4 {
  margin: 0;
  font-size: 16px;
  color: var(--title);
}

.map-embed__caption p {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
}

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

.map-embed__btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--title);
  font-size: 13px;
  font-weight: 500;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.map-embed__btn:hover {
  border-color: var(--green-500);
  background: var(--green-50);
  color: var(--green-600);
}

.map-embed__btn svg {
  flex: none;
  width: 14px;
  height: 14px;
}

/* 新闻列表 */
.news-list {
  display: grid;
  gap: 20px;
}

.news-item {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 24px;
  padding: 26px 28px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--white);
  transition: border-color 0.24s ease, box-shadow 0.24s ease;
}

.news-item:hover {
  border-color: rgba(18, 104, 179, 0.28);
  box-shadow: var(--shadow-md);
}

.news-item__date {
  color: var(--blue-600);
  font-family: var(--font-num);
}

.news-item__date strong {
  display: block;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
}

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

.news-item h4 {
  font-size: 17px;
}

.news-item p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.9;
}

.news-item__tag {
  display: inline-block;
  margin-top: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--blue-50);
  color: var(--blue-600);
  font-size: 12px;
}

/* 对比/规格表 */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.spec-table th,
.spec-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--line-soft);
  text-align: left;
  font-size: 14px;
}

.spec-table th {
  background: var(--surface);
  color: var(--title);
  font-weight: 600;
}

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

.spec-table tbody tr:hover {
  background: #fbfdff;
}

/* ---------- 10. 页脚 ------------------------------------------------------ */
.site-footer {
  background: #06202f;
  color: #6e93b0;
  font-size: 13px;
}

.site-footer__top {
  display: grid;
  grid-template-columns: minmax(0, 340px) repeat(3, minmax(0, 1fr)) minmax(
      0,
      240px
    );
  gap: 48px;
  padding-block: 72px 48px;
}

.site-footer .brand__cn {
  color: var(--white);
  font-size: 19px;
}

.site-footer .brand__en {
  color: #63c4e8;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.footer-brand p {
  line-height: 1.9;
}

.footer-col h4 {
  margin-bottom: 16px;
  color: var(--white);
  font-size: 14px;
}

.footer-col ul {
  display: grid;
  gap: 12px;
}

.footer-col a {
  color: #8fb3ce;
}

.footer-col a:hover {
  color: var(--green-400);
}

.footer-col li {
  line-height: 1.6;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 26px;
  border-top: 1px solid #12374c;
  color: #5a87a6;
  font-size: 12px;
}

.site-footer__bottom a {
  color: #5a87a6;
}

.site-footer__bottom a:hover {
  color: var(--green-400);
}

/* 回到顶部 */
.to-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  z-index: 50;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--navy-700);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: all 0.26s ease;
  backdrop-filter: blur(8px);
}

.to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.to-top:hover {
  border-color: var(--blue-600);
  color: var(--blue-600);
}

/* 无障碍：跳转到主内容 */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 99;
  padding: 12px 20px;
  border-radius: 0 0 var(--r-sm) 0;
  background: var(--navy-800);
  color: var(--white);
}

.skip-link:focus {
  left: 0;
  color: var(--white);
}

/* ---------- 11. 响应式 ---------------------------------------------------- */
@media (max-width: 1180px) {
  .nav__menu {
    gap: 24px;
  }
  .site-footer__top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: minmax(0, 1fr);
  }
  .hero__figure {
    min-height: 280px;
  }
  .about-grid,
  .culture,
  .honor-grid,
  .contact-grid,
  .split {
    grid-template-columns: minmax(0, 1fr);
  }
  .split--reverse .split__media {
    order: 0;
  }
  .about-figs .figure {
    min-height: 260px;
  }
  .app-bento__top,
  .app-bento__bottom {
    grid-template-columns: minmax(0, 1fr);
  }
  .app-card--dark,
  .app-card--green,
  .figure--app {
    min-height: 0;
  }
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .cta-band {
    flex-direction: column;
    align-items: flex-start;
    gap: 32px;
  }
}

@media (max-width: 900px) {
  .nav__toggle {
    display: grid;
    place-items: center;
  }
  .nav__menu {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 8px var(--gutter) 20px;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    display: none;
  }
  .nav__menu.is-open {
    display: flex;
  }
  .nav__menu a {
    padding: 14px 0;
    border-bottom: 1px solid var(--line-soft);
    font-size: 16px;
  }
  .nav__menu a::after {
    display: none;
  }
  .nav__actions .btn {
    display: none;
  }
  .nav {
    position: relative;
  }
  .sec-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  .lead {
    max-width: none;
  }
}

@media (max-width: 768px) {
  body {
    font-size: 14px;
  }
  .topbar__inner {
    justify-content: center;
    text-align: center;
  }
  .topbar__right {
    display: none;
  }
  .grid--3,
  .grid--2 {
    grid-template-columns: minmax(0, 1fr);
  }
  .stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
  .news-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }
  .cta-band__actions {
    flex-wrap: wrap;
    gap: 20px;
  }
  .hero__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  /* 地图：保持 1200/420 比例自适应，不加固定高度/出血（.map-embed 自身 overflow:hidden，任何超宽都会被 CSS 裁掉） */
  .map-embed__hint {
    right: 14px;
    bottom: 14px;
    padding: 10px 16px;
    font-size: 12px;
  }
}

@media (max-width: 560px) {
  .about-figs__row {
    grid-template-columns: minmax(0, 1fr);
  }
  .grid--4 {
    grid-template-columns: minmax(0, 1fr);
  }
  .card,
  .app-card {
    padding: 24px;
  }
  .site-footer__top {
    grid-template-columns: minmax(0, 1fr);
    padding-block: 52px 36px;
  }
  .hero__actions .btn {
    width: 100%;
  }
  /* 地图统一走 aspect-ratio，小屏不再固定高度，避免裁切 */
}

/* 打印 */
@media print {
  .site-header,
  .topbar,
  .to-top,
  .cta-band {
    display: none;
  }
  body {
    color: #000;
  }
}