/* ==========================================================================
   里恩 RIEHEN 首页 —— 流式响应式（PC 优先，字号保持设计稿原值）
   设计基准：1920 画布，内容区 1440px（左右各 240 留白）
   ========================================================================== */

:root {
  --blue: #1b487d;
  --red: #d61918;
  --red-alt: #cd1918;
  --red-light: #fd4953;
  --bg-soft: #f6f8fa;
  --bg-soft-2: #ecf1f6;
  --text: #212529;
  --muted: #5d6666;
  --white: #ffffff;
  --dark: #0a1725;

  --font-cn: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --font-en: "Inder", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;

  /* 布局尺度 */
  --container: 1440px;
  --gutter: clamp(48px, 8vw, 160px);
  --gap: clamp(20px, 1.6vw, 30px);
  --section-py: clamp(64px, 5.2vw, 100px);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-cn);
  color: var(--text);
  background: #eef1f5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  display: block;
  border: 0;
  max-width: 100%;
}

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

ul {
  list-style: none;
}

/* 内容容器：1920 屏下正好 1440px，窄屏自动收缩 */
.container {
  width: min(var(--container), 100% - var(--gutter));
  margin: 0 auto;
}

/* ---------------- 通用标题组件 ---------------- */
.section-head {
  position: relative;
  /* 设计稿：标题组底部到内容区固定 70px */
  margin-bottom: 70px;
}

.section-head--center {
  text-align: center;
}

.section-en {
  display: block;
  font-family: var(--font-en);
  font-size: 20px;
  line-height: 20px;
  letter-spacing: 0.4px;
  color: var(--blue);
  white-space: pre;
}

.section-head--light .section-en {
  color: rgba(255, 255, 255, 0.7);
}

.section-line {
  width: 60px;
  height: 3px;
  margin-top: 13px;
  background: linear-gradient(90deg, var(--blue) 11.538%, var(--red-alt) 100%);
}

.section-head--center .section-line {
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  margin-top: 14px;
  font-size: 40px;
  line-height: 40px;
  letter-spacing: 0.4px;
  color: var(--text);
}

.section-head--light .section-title {
  color: #fff;
}

/* 渐变线与英文标题同行并排（线在左，垂直居中） */
.section-head__eyebrow {
  display: flex;
  align-items: center;
  gap: 20px;
}

.section-head__eyebrow .section-line {
  flex: 0 0 60px;
  margin-top: 0;
}

/* ---------------- 通用按钮 / 链接 ---------------- */
.btn-primary {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 46px;
  padding: 0 60px 0 20px;
  border-radius: 86px;
  background-image: linear-gradient(90deg, var(--blue), var(--blue)),
    linear-gradient(90deg, var(--red) 9.615%, var(--red-light) 100%);
  background-repeat: no-repeat, no-repeat;
  background-position: left center, left center;
  background-size: 0% 100%, 100% 100%;
  transition: background-size 0.45s cubic-bezier(0.22, 0.75, 0.3, 1);
  color: #fff;
  font-size: 16px;
  letter-spacing: 0.4px;
  cursor: pointer;
}

.btn-primary:hover {
  background-size: 100% 100%, 100% 100%;
}

.btn-primary__arrow {
  position: absolute;
  right: 8px;
  top: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-image: linear-gradient(90deg, var(--blue), var(--blue)), linear-gradient(#fff, #fff);
  background-repeat: no-repeat, no-repeat;
  background-position: left center, left center;
  background-size: 0% 100%, 100% 100%;
  transition: background-size 0.4s cubic-bezier(0.22, 0.75, 0.3, 1) 0.1s;
}

/* .btn-primary:hover .btn-primary__arrow {
  background-size: 100% 100%, 100% 100%;
} */

.btn-primary__arrow img {
  width: 20px;
  height: 20px;
  transform: rotate(130deg);
  transition: transform 0.45s cubic-bezier(0.22, 0.75, 0.3, 1), filter 0.4s ease 0.1s;
}

/* .btn-primary:hover .btn-primary__arrow img {
  filter: brightness(0) invert(1);
} */

.btn-primary:hover .btn-primary__arrow img {
  transform: rotate(180deg);
}

.btn-primary--lg {
  height: 52px;
  padding: 0 76px 0 34px;
  font-size: 20px;
  margin-top: 33px;
}

.btn-primary--lg .btn-primary__arrow {
  right: 9px;
  top: 9px;
  width: 34px;
  height: 34px;
}

.btn-primary--lg .btn-primary__arrow img {
  width: 24px;
  height: 24px;
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  line-height: 20px;
  letter-spacing: 0.4px;
  color: var(--blue);
}

.link-more img {
  width: 10px;
  /* height: 12px; */
}

/* ==========================================================================
   导航
   ========================================================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.nav.is-sticky {
  background: #fff;
  box-shadow: 0 2px 20px rgba(15, 32, 56, 0.08);
}

.nav__inner {
  display: flex;
  align-items: center;
  height: 80px;
}

.nav__logo {
  position: relative;
  flex: 0 0 auto;
  width: 86px;
  height: 32px;
}

.nav__logo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: opacity 0.3s ease;
}

.nav__logo-dark {
  opacity: 0;
}

.nav.is-sticky .nav__logo-light {
  opacity: 0;
}

.nav.is-sticky .nav__logo-dark {
  opacity: 1;
}

.nav__menu {
  display: flex;
  align-items: center;
  margin: 0 auto;
  gap: clamp(24px, 2.66vw, 51px);
}

.nav__item {
  font-size: 20px;
  line-height: 20px;
  letter-spacing: 0.4px;
  color: #fff;
  white-space: nowrap;
  transition: color 0.3s ease;
}

.nav__item--active {
  font-weight: bold;
}

/* ==========================================================================
   Mega Menu — 全宽下拉面板
   参考 medidata.com 风格：一级菜单 hover 后弹出全宽带状面板
   ========================================================================== */
.nav__item--has-mega {
  position: static;
  display: flex;
  align-items: center;
  height: 100%;
}

.nav__item--has-mega > a {
  display: flex;
  align-items: center;
  height: 100%;
  position: relative;
}

/* 一级菜单文字下方：hover 时出现红色小三角 */
.nav__item--has-mega > a::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -6px;
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid var(--red);
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.nav__item--has-mega:hover > a::after,
.nav__item--has-mega:focus-within > a::after {
  opacity: 1;
}

/* mega 面板：全宽
   注意：.nav__item 有 white-space: nowrap（防止菜单项折行），
   会被面板内长文案继承导致不换行，必须在此显式恢复 normal */
.nav__mega {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  width: 100%;
  white-space: normal;
  background: #fff;
  box-shadow: 0 20px 60px rgba(15, 32, 56, 0.15);
  border-top: 1px solid #e9edf2;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
  z-index: 110;
}

.nav__item--has-mega:hover .nav__mega,
.nav__item--has-mega:focus-within .nav__mega {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__mega-inner {
  width: min(var(--container), 100% - var(--gutter));
  margin: 0 auto;
  padding: 40px 0 44px;
}

.nav__mega-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 56px;
}

/* 左侧：链接组 */
.nav__mega-group h4 {
  margin-bottom: 22px;
  font-size: 12px;
  font-weight: bold;
  letter-spacing: 1.2px;
  color: var(--muted);
  text-transform: uppercase;
}

.nav__mega-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.nav__mega-list--compact {
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  max-width: 640px;
}

.nav__mega-list a {
  display: block;
  padding: 14px 16px;
  border-radius: 6px;
  transition: background 0.2s ease, transform 0.2s ease;
  position: relative;
}

.nav__mega-list a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 0;
  height: 2px;
  background: var(--blue);
  transform: translateY(-50%);
  transition: width 0.3s ease;
}

.nav__mega-list a:hover {
  background: var(--bg-soft);
  transform: translateX(4px);
}

.nav__mega-list a:hover::before {
  width: 6px;
}

.nav__mega-list a strong {
  display: block;
  font-size: 16px;
  font-weight: bold;
  line-height: 22px;
  color: var(--text);
  letter-spacing: 0.4px;
}

.nav__mega-list a span {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  line-height: 18px;
  color: var(--muted);
}

/* 右侧：特色介绍卡片 */
.nav__mega-feature {
  padding: 28px 24px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--bg-soft) 0%, #e6eef7 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.nav__mega-feature__label {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 4px;
  background: var(--red);
  color: #fff;
  font-size: 11px;
  font-weight: bold;
  letter-spacing: 0.8px;
}

.nav__mega-feature h5 {
  margin-top: 16px;
  font-size: 18px;
  line-height: 24px;
  color: var(--text);
}

.nav__mega-feature p {
  margin-top: 12px;
  font-size: 12px;
  line-height: 20px;
  color: var(--muted);
}

.nav__mega-feature__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-size: 13px;
  font-weight: bold;
  color: var(--blue);
  transition: gap 0.2s ease;
}

.nav__mega-feature__cta:hover {
  gap: 10px;
}

.nav__mega-feature__cta::after {
  content: '→';
}

/* 简单的二级下拉（备用，给"客户案例""质量与合规"等无二级时使用） */
.nav__dropdown {
  position: absolute;
  top: calc(100% + 0px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  display: flex;
  flex-direction: column;
  min-width: 180px;
  padding: 8px 0;
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 12px 36px rgba(15, 32, 56, 0.18);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
  z-index: 110;
}

.nav__item--has-dropdown:hover .nav__dropdown,
.nav__item--has-dropdown:focus-within .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav__dropdown a {
  display: block;
  padding: 12px 24px;
  font-size: 16px;
  line-height: 20px;
  letter-spacing: 0.4px;
  color: var(--text);
  white-space: nowrap;
  transition: background 0.2s ease, padding-left 0.2s ease;
}

.nav__dropdown a:hover {
  background: var(--bg-soft);
  color: var(--blue);
  padding-left: 28px;
}

.nav.is-sticky .nav__item,
.nav.is-sticky .nav__tel {
  color: var(--text);
}

.nav__right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 0 0 auto;
}

.nav__icons {
  display: flex;
  gap: 15px;
}

.nav__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 29px;
  background: rgba(241, 243, 247, 0.3);
  transition: background 0.3s ease;
}

.nav__icon img {
  width: 18px;
  height: 18px;
  transition: filter 0.3s ease;
}

.nav.is-sticky .nav__icon {
  background: rgba(27, 72, 125, 0.08);
}

.nav.is-sticky .nav__icon img {
  filter: brightness(0);
}

.nav__tel {
  font-size: 20px;
  font-weight: bold;
  line-height: 20px;
  letter-spacing: 0.4px;
  color: #fff;
  white-space: nowrap;
  transition: color 0.3s ease;
}

/* ==========================================================================
   Banner
   ========================================================================== */
.banner {
  position: relative;
  height: 100vh;
  overflow: hidden;
}

.banner__bg {
  position: absolute;
  inset: 0;
}

.banner__bg img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.8s ease;
}

.banner__bg img.is-active {
  opacity: 1;
  /* 缩放动画与 4.5s 轮播间隔保持同步（原 7s） */
  animation: banner-zoom 4.5s ease-in-out both;
}

@keyframes banner-zoom {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.08);
  }
  100% {
    transform: scale(1);
  }
}

.banner__mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(2, 22, 43, 0.8) 0%, rgba(2, 18, 34, 0.24) 100%);
}

.banner__inner {
  position: relative;
  z-index: 2;
  /* 撑满 banner 高度，内容自身垂直居中，指示点得以贴底定位 */
  height: 100%;
  display: flex;
  align-items: center;
}

/* 左下角轮播指示点 */
.banner__dots {
  position: absolute;
  left: 0;
  bottom: 48px;
  display: flex;
  gap: 10px;
}

.banner__dots button {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  transition: background 0.3s ease, transform 0.3s ease;
}

.banner__dots button:hover {
  background: rgba(255, 255, 255, 0.7);
}

.banner__dots button.is-active {
  background: #fff;
  transform: scale(1.2);
}

.banner__content {
  max-width: 846px;
  /* 设计稿中文案块中心比 banner 中心低 34px */
  margin-top: 68px;
  color: #fff;
}

.banner__en {
  font-size: 20px;
  line-height: 22px;
  letter-spacing: 0.4px;
}

.banner__title {
  margin-top: 15px;
  font-size: 50px;
  line-height: 70px;
  letter-spacing: 0.4px;
}

.banner__line {
  width: 361px;
  height: 12px;
  margin-top: -15px;
  background: linear-gradient(
    90deg,
    rgba(22, 97, 185, 0.5) 23.61%,
    rgba(22, 97, 185, 0.5) 30.288%,
    rgba(233, 32, 60, 0.5) 100%
  );
}

.banner__desc {
  margin-top: 47px;
  font-size: 16px;
  line-height: 30px;
  letter-spacing: 0.4px;
}

.banner__desc + .banner__desc {
  margin-top: 0;
}

/* 逐行从左到右滑入 */
.banner__line-item {
  opacity: 0;
}

.banner__content.is-animating .banner__line-item {
  animation: banner-line-in 0.9s cubic-bezier(0.22, 0.75, 0.3, 1) forwards;
}

.banner__content.is-animating .banner__line-item:nth-child(1) {
  animation-delay: 0.05s;
}

.banner__content.is-animating .banner__line-item:nth-child(2) {
  animation-delay: 0.2s;
}

.banner__content.is-animating .banner__line-item:nth-child(3) {
  animation-delay: 0.35s;
}

.banner__content.is-animating .banner__line-item:nth-child(4) {
  animation-delay: 0.5s;
}

.banner__content.is-animating .banner__line-item:nth-child(5) {
  animation-delay: 0.65s;
}

@keyframes banner-line-in {
  from {
    opacity: 0;
    transform: translateX(-56px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.banner__slider {
  position: absolute;
  right: 0;
  bottom: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  width: 180px;
  height: 160px;
  background: var(--blue);
  overflow: hidden;
}

.banner__slider.is-growing {
  animation: slider-grow 0.75s cubic-bezier(0.22, 0.75, 0.3, 1) both;
}

@keyframes slider-grow {
  from {
    height: 50px;
  }
  to {
    height: 160px;
  }
}

.banner__slider-current {
  position: relative;
  display: block;
  width: 64px;
  height: 50px;
  overflow: hidden;
}

.banner__slider-current .num {
  position: absolute;
  left: 0;
  bottom: 0;
  font-size: 50px;
  line-height: 50px;
  letter-spacing: 0.4px;
  color: #fff;
}

.banner__slider-current .num--in {
  animation: num-roll-in 0.5s cubic-bezier(0.22, 0.75, 0.3, 1) both;
}

.banner__slider-current .num--out {
  animation: num-roll-out 0.5s cubic-bezier(0.22, 0.75, 0.3, 1) both;
}

@keyframes num-roll-in {
  from {
    transform: translateY(105%);
  }
  to {
    transform: translateY(0);
  }
}

@keyframes num-roll-out {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-105%);
  }
}

.banner__slider-sep {
  width: 1px;
  height: 17px;
  background: rgba(255, 255, 255, 0.4);
}

.banner__slider-total {
  font-size: 26px;
  line-height: 26px;
  letter-spacing: 0.4px;
  color: rgba(255, 255, 255, 0.6);
}

/* ==========================================================================
   三高特性条
   ========================================================================== */
.features {
  background: var(--bg-soft);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: stretch;
}

.feature {
  position: relative;
  display: flex;
  flex-direction: column;
  /* 内边距随屏幕收放，窄屏不再挤压文字 */
  padding: 0 clamp(16px, 1.2vw, 24px) 66px clamp(20px, 2.4vw, 46px);
  cursor: pointer;
}

/* hover 高亮：从上往下展开 */
.feature::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--bg-soft-2);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.4s cubic-bezier(0.22, 0.75, 0.3, 1);
}

.feature:hover::before {
  transform: scaleY(1);
}

.feature__body {
  position: relative;
  display: flex;
  gap: clamp(16px, 1.8vw, 34px);
  padding-top: 60px;
}

.feature__icon {
  position: relative;
  flex: 0 0 clamp(40px, 2.8vw, 54px);
  width: clamp(40px, 2.8vw, 54px);
  height: clamp(40px, 2.8vw, 54px);
  margin-top: 27px;
  transition: transform 0.5s cubic-bezier(0.22, 0.75, 0.3, 1);
}

/* hover 时图标 3D 翻面 */
.feature:hover .feature__icon {
  transform: perspective(400px) rotateY(180deg);
}

.feature__icon img {
  width: 100%;
  height: 100%;
}

.feature__icon-inner {
  position: absolute;
  left: 24%;
  top: 24%;
  width: 52% !important;
  height: 52% !important;
}

.feature__text {
  flex: 1;
  min-width: 0;
  max-width: 283px;
}

.feature__title {
  font-size: 20px;
  line-height: 24px;
  letter-spacing: 0.4px;
  color: var(--text);
}

.feature__desc {
  margin-top: 15px;
  font-size: 14px;
  line-height: 28px;
  letter-spacing: 0.4px;
  color: var(--muted);
}

/* MORE 条：从左往右滑出 */
.feature__more {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 66px;
  overflow: hidden;
  pointer-events: none;
}

.feature__more-inner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-left: 24px;
  background: var(--blue);
  font-size: 16px;
  letter-spacing: 0.4px;
  color: #fff;
  transform: translateX(-100%);
  transition: transform 0.5s cubic-bezier(0.22, 0.75, 0.3, 1);
}

.feature:hover .feature__more-inner {
  transform: translateX(0);
}

.feature__more-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 66px;
  width: 66px;
  height: 66px;
  background: var(--red);
  transform: translateX(-66px);
  transition: transform 0.5s cubic-bezier(0.22, 0.75, 0.3, 1) 0.08s;
}

.feature:hover .feature__more-btn {
  transform: translateX(0);
}

.feature__more-btn img {
  width: 24px;
  height: 24px;
}

/* ==========================================================================
   关于里恩
   ========================================================================== */
.about {
  /* 设计稿：内容即区块（高 733px），与前一个区块间隔 90px */
  margin-top: 90px;
}

.about__grid {
  display: grid;
  grid-template-columns: 600fr 673fr;
  gap: clamp(48px, 11.5vw, 165px);
}

.about__left {
  min-width: 0;
}

.about .section-en {
  font-size: 16px;
}

.about .section-title {
  margin-top: 20px;
}

.about__media {
  position: relative;
  width: 100%;
  max-width: 600px;
  margin-top: 53px;
}

.about__photo {
  position: relative;
  aspect-ratio: 1;
  border-radius: 8px 8px 230px 8px;
  overflow: hidden;
}

.about__photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about__badge {
  position: absolute;
  left: 81.5%;
  top: 42%;
  width: 195px;
  height: 213px;
  padding-top: 41px;
  border-radius: 8px;
  background: var(--blue);
  text-align: center;
}

.about__badge {
  animation: badge-bounce 2.2s cubic-bezier(0.25, 0.8, 0.3, 1) infinite both;
}

@keyframes badge-bounce {
  0% {
    transform: translateY(0);
  }
  12% {
    transform: translateY(-16px);
  }
  26% {
    transform: translateY(9px);
  }
  40% {
    transform: translateY(-6px);
  }
  54% {
    transform: translateY(3.5px);
  }
  68% {
    transform: translateY(-2px);
  }
  82% {
    transform: translateY(1px);
  }
  100% {
    transform: translateY(0);
  }
}

.about__badge strong {
  display: block;
  font-size: 50px;
  line-height: 70px;
  letter-spacing: 0.4px;
  color: #fff;
}

.about__badge span {
  display: block;
  font-family: var(--font-en);
  font-size: 16px;
  line-height: 25px;
  letter-spacing: 0.4px;
  color: #fff;
}

.about__right {
  min-width: 0;
  padding-top: clamp(60px, 9vw, 131px);
}

.about__intro {
  font-size: 14px;
  line-height: 28px;
  letter-spacing: 0.4px;
  text-align: justify;
  color: var(--muted);
}

.about__intro + .about__intro {
  margin-top: 20px;
}

.about__list {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.about__item {
  display: flex;
  gap: 20px;
}

.about__item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 60px;
  width: 60px;
  height: 60px;
  border-radius: 8px;
  background: var(--bg-soft);
}

.about__item-icon img {
  width: 28px;
  height: 28px;
}

.about__item h4 {
  font-size: 20px;
  line-height: 24px;
  letter-spacing: 0.4px;
  color: var(--text);
}

.about__item p {
  margin-top: 15px;
  font-size: 14px;
  line-height: 24px;
  letter-spacing: 0.4px;
  color: var(--muted);
}

.about__right .btn-primary {
  margin-top: 61px;
}

/* 首次进入视口：左图横向滑出，右侧文字纵向落入 */
.about.is-visible .about__photo {
  animation: about-photo-in 0.9s cubic-bezier(0.22, 0.75, 0.3, 1) both;
}

.about.is-visible .about__intro {
  animation: about-text-down 0.8s cubic-bezier(0.22, 0.75, 0.3, 1) 0.1s both;
}

.about.is-visible .about__list {
  animation: about-text-down 0.8s cubic-bezier(0.22, 0.75, 0.3, 1) 0.25s both;
}

.about.is-visible .about__right .btn-primary {
  animation: about-text-down 0.8s cubic-bezier(0.22, 0.75, 0.3, 1) 0.4s both;
}

@keyframes about-photo-in {
  from {
    opacity: 0;
    transform: translateX(-90px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes about-text-down {
  from {
    opacity: 0;
    transform: translateY(-60px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   数据
   ========================================================================== */
.stats {
  /* 设计稿：卡片高 320px，与上方间隔 70px */
  margin-top: 70px;
}

.stats__card {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 75px 40px 60px;
  border-radius: 8px;
  background: var(--bg-soft);
  text-align: center;
}

.stats__item strong {
  display: block;
  font-size: 50px;
  line-height: 50px;
  letter-spacing: 0.4px;
  color: var(--blue);
}

.stats__label {
  display: block;
  margin-top: 15px;
  font-size: 20px;
  font-weight: bold;
  line-height: 20px;
  letter-spacing: 0.4px;
  color: var(--text);
}

.stats__item p {
  max-width: 283px;
  margin: 45px auto 0;
  font-size: 14px;
  line-height: 28px;
  letter-spacing: 0.4px;
  color: var(--muted);
}

/* 依次浮出 */
.stats.is-visible .stats__item strong {
  animation: stats-num-roll 0.6s cubic-bezier(0.22, 0.75, 0.3, 1) both;
}

.stats.is-visible .stats__item:nth-child(2) strong {
  animation-delay: 0.15s;
}

.stats.is-visible .stats__item:nth-child(3) strong {
  animation-delay: 0.3s;
}

@keyframes stats-num-roll {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 逐位翻滚（odometer） */
.stats__item strong .digit {
  display: inline-block;
  width: 0.6em;
  height: 50px;
  overflow: hidden;
  text-align: center;
  vertical-align: top;
}

.stats__item strong .digit__strip {
  display: block;
  transition: transform 1.2s cubic-bezier(0.22, 0.75, 0.3, 1);
}

.stats__item strong .digit__strip > span {
  display: block;
  height: 50px;
  line-height: 50px;
}

.stats__item strong .stats__suffix {
  display: inline-block;
  vertical-align: top;
}

/* ==========================================================================
   公司产品
   ========================================================================== */
.products {
  /* 设计稿：区块 2524~3864，内边距上下各 90px */
  padding: 90px 0;
  margin-top: 80px;
  /* 深色弧形背景：SVG 顶部透明处透出页面底色 */
  background: url("../image/products-bg.svg") no-repeat top center / 100% 100%;
}

.products__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr); /* 产品矩阵：4 列 × 2 排 */
  grid-auto-rows: 1fr;
  gap: 40px clamp(16px, 1.5vw, 26px);
}

@media (max-width: 1100px) {
  .products__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.product-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 34px 16px 36px;
  border-radius: 8px;
  background: #fff;
  text-align: center;
  transition: transform 0.58s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.58s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-card__thumb {
  position: relative;
  /* 宽高都用同一表达式，避免百分比高度解析失败导致图片变形 */
  width: clamp(140px, 10.5vw, 186px);
  height: clamp(140px, 10.5vw, 186px);
  border-radius: 50%;
  overflow: hidden;
}

.product-card__thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-card__no {
  position: absolute;
  left: 34%;
  top: 79%;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--blue);
  font-size: 30px;
  font-weight: bold;
  line-height: 40px;
  letter-spacing: 0.4px;
  color: #fff;
  transition: all 0.3s ease;
}
.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 18px 40px rgba(15, 32, 56, 0.12);
}

.product-card:hover .product-card__no {
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  font-size: 60px;
  line-height: 60px;
  background: rgba(27, 72, 125, 0.7);
}

.product-card__title {
  margin-top: 28px;
  font-size: 20px;
  line-height: 20px;
  letter-spacing: 0.4px;
  color: var(--text);
}

.product-card__sub {
  margin-top: 14px;
  font-size: 16px;
  line-height: 20px;
  letter-spacing: 0.4px;
  color: var(--muted);
}

.product-card .link-more {
  margin-top: 18px;
}

/* 与新闻中心一致的 link-more 特效：hover 时箭头右移 */
.product-card .link-more img {
  transition: transform 0.3s ease;
}

.product-card:hover .link-more img,
.product-card .link-more:hover img {
  transform: translateX(5px);
}

/* ==========================================================================
   新闻中心
   ========================================================================== */
.news {
  /* 设计稿：区块 3864~4864，上 90px、下 100px */
  padding: 90px 0 100px;
  background: #fff;
}

.news .section-head {
  margin-bottom: 80px;
}

.news__grid {
  display: grid;
  grid-template-columns: 460fr 906fr;
  gap: clamp(32px, 5.2vw, 75px);
}

.news__feature {
  display: flex;
  flex-direction: column;
  background: var(--bg-soft);
  border-radius: 4px;
  overflow: hidden;
}

.news__feature-img {
  position: relative;
  aspect-ratio: 460 / 360;
  overflow: hidden;
}

.news__feature-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news__feature h3 {
  margin: 40px 30px 0;
  font-size: 20px;
  line-height: 20px;
  letter-spacing: 0.4px;
  color: var(--text);
}

.news__feature p {
  margin: 25px 30px 0;
  font-size: 14px;
  line-height: 28px;
  letter-spacing: 0.4px;
  text-align: justify;
  color: var(--muted);
}

.news__feature .link-more {
  margin: 74px 30px 45px;
  font-size: 16px;
  align-self: flex-start;
}

.news__list {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.news__row {
  position: relative;
  display: grid;
  /* 缩略图固定 321px，文字占剩余宽度 */
  grid-template-columns: minmax(0, 321px) minmax(0, 1fr);
  gap: 44px;
  padding-bottom: 40px;
  border-bottom: 1px solid #e9edf2;
  cursor: pointer;
}

.news__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.news__row-img {
  position: relative;
  aspect-ratio: 321 / 160;
  overflow: hidden;
  border-radius: 4px;
}

.news__row-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news__row-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
}

.news__date {
  margin-top: 9px;
  font-size: 14px;
  line-height: 14px;
  letter-spacing: 0.4px;
  color: var(--muted);
}

.news__row h3 {
  max-width: 375px;
  margin-top: 30px;
  font-size: 20px;
  line-height: 20px;
  letter-spacing: 0.4px;
  color: var(--text);
}

.news__row p {
  max-width: 506px;
  margin-top: 15px;
  font-size: 14px;
  line-height: 14px;
  letter-spacing: 0.4px;
  color: var(--muted);
}

.news__row .link-more {
  margin-top: 31px;
}

/* 首次进入视口：条目由下往上依次浮出 */
.news.is-visible .news__feature,
.news.is-visible .news__row {
  animation: news-rise-in 1.15s cubic-bezier(0.22, 0.75, 0.3, 1) both;
}

.news.is-visible .news__row:nth-child(1) {
  animation-delay: 0.2s;
}

.news.is-visible .news__row:nth-child(2) {
  animation-delay: 0.4s;
}

.news.is-visible .news__row:nth-child(3) {
  animation-delay: 0.6s;
}

@keyframes news-rise-in {
  from {
    opacity: 0;
    transform: translateY(80px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 鼠标经过特效 */
.news__feature,
.news__row {
  transition: transform 0.4s cubic-bezier(0.22, 0.75, 0.3, 1), box-shadow 0.4s ease;
}

.news__feature:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 48px rgba(15, 32, 56, 0.14);
}

.news__feature:hover .news__feature-img img,
.news__row:hover .news__row-img img {
  transform: scale(1.08);
}

.news__feature h3,
.news__row h3 {
  transition: color 0.3s ease;
}

.news__feature-img img,
.news__row-img img {
  transition: transform 0.6s cubic-bezier(0.22, 0.75, 0.3, 1);
}

.news__feature:hover h3,
.news__row:hover h3 {
  color: var(--blue);
}

.news__feature .link-more img,
.news__row .link-more img {
  transition: transform 0.3s ease;
}

.news__feature:hover .link-more img,
.news__row:hover .link-more img {
  transform: translateX(5px);
}

.news__row h3,
.news__row p,
.news__row .news__date,
.news__row .link-more {
  transition: transform 0.4s cubic-bezier(0.22, 0.75, 0.3, 1), color 0.3s ease;
}

.news__row:hover h3,
.news__row:hover p,
.news__row:hover .news__date,
.news__row:hover .link-more {
  transform: translateX(8px);
}

/* ==========================================================================
   行业洞察
   ========================================================================== */
.insight {
  position: relative;
  /* 设计稿：区块 4864~5694，上 90px、下 150px */
  padding: 90px 0 150px;
  overflow: hidden;
}

.insight .section-head {
  margin-bottom: 80px;
}

.insight__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.insight__bg img {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  /* 高于容器，供「固定背景」抵消滚动时始终铺满 */
  height: 140%;
  object-fit: cover;
  will-change: transform;
}

.insight__mask {
  position: absolute;
  inset: 0;
  background: rgba(10, 23, 37, 0.7);
}

.insight__inner {
  position: relative;
  z-index: 2;
}

.insight__arrow {
  position: absolute;
  /* 与卡片垂直中心对齐：标题组 90 + 间距 80 + 卡片半高 210 */
  top: 380px;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}

.insight__arrow img {
  width: 28px;
  height: 28px;
}

/* 定位相对内容容器：贴在其外侧留白中，窄屏时自动收回，不脱离卡片 */
.insight__arrow--prev {
  left: max(-88px, calc((100% - 100vw) / 2 + 16px));
}

.insight__arrow--next {
  right: max(-60px, calc((100% - 100vw) / 2 + 16px));
}

/* hover：左箭头向左轻移回弹，右箭头向右轻移回弹 */
.insight__arrow--prev:hover {
  animation: arrow-nudge-left 0.5s cubic-bezier(0.22, 0.75, 0.3, 1);
}

.insight__arrow--next:hover {
  animation: arrow-nudge-right 0.5s cubic-bezier(0.22, 0.75, 0.3, 1);
}

@keyframes arrow-nudge-left {
  0% {
    transform: translateX(0);
  }
  40% {
    transform: translateX(-8px);
  }
  70% {
    transform: translateX(2px);
  }
  100% {
    transform: translateX(0);
  }
}

@keyframes arrow-nudge-right {
  0% {
    transform: translateX(0);
  }
  40% {
    transform: translateX(8px);
  }
  70% {
    transform: translateX(-2px);
  }
  100% {
    transform: translateX(0);
  }
}
.insight__arrow--next img {
  transform: rotate(180deg);

}

.insight__card {
  position: relative;
  display: grid;
  /* 配图固定 739px，文字区占剩余宽度 */
  grid-template-columns: minmax(0, 739px) minmax(0, 1fr);
  padding: 10px;
  border-radius: 4px;
  background: #fff;
  overflow: hidden;
}

.insight__card-img {
  position: relative;
  aspect-ratio: 739 / 400;
  overflow: hidden;
  border-radius: 4px;
}

.insight__card-img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: filter 0.5s ease;
}

/* hover：图片提亮 + 轻微增饱和（filter 与切换动画的 transform 不冲突） */
.insight__card:hover .insight__card-img img {
  filter: brightness(1.12) saturate(1.15);
}

.insight__card-body {
  padding: 30px 24px 30px 33px;
}

.tag {
  display: inline-block;
  width: 88px;
  height: 30px;
  border-radius: 2px;
  background: var(--blue);
  font-size: 14px;
  line-height: 30px;
  letter-spacing: 0.4px;
  text-align: center;
  color: #fff;
}

.insight__date {
  display: block;
  margin-top: 60px;
  font-size: 14px;
  line-height: 14px;
  letter-spacing: 0.4px;
  color: var(--muted);
}

.insight__card-body h3 {
  margin-top: 22px;
  font-size: 20px;
  line-height: 24px;
  letter-spacing: 0.4px;
  color: var(--text);
}

.insight__card-body p {
  margin-top: 16px;
  font-size: 14px;
  line-height: 28px;
  letter-spacing: 0.4px;
  color: var(--muted);
}

.insight__card-body .link-more {
  margin-top: 43px;
  font-size: 16px;
}

/* hover：箭头右移（与其他区块 link-more 一致） */
.insight__card-body .link-more img {
  transition: transform 0.3s ease;
}

.insight__card:hover .insight__card-body .link-more img {
  transform: translateX(5px);
}

/* 切换动画：信息从左往右依次滑入 */
.insight__card.is-switching .insight__card-body > * {
  animation: insight-text-in 0.7s cubic-bezier(0.22, 0.75, 0.3, 1) both;
}

.insight__card.is-switching .insight__card-body > *:nth-child(2) {
  animation-delay: 0.08s;
}

.insight__card.is-switching .insight__card-body > *:nth-child(3) {
  animation-delay: 0.16s;
}

.insight__card.is-switching .insight__card-body > *:nth-child(4) {
  animation-delay: 0.24s;
}

.insight__card.is-switching .insight__card-body > *:nth-child(5) {
  animation-delay: 0.32s;
}

@keyframes insight-text-in {
  from {
    opacity: 0;
    transform: translateX(-56px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.insight__card.is-switching .insight__card-img img {
  animation: insight-img-in 0.8s cubic-bezier(0.22, 0.75, 0.3, 1) both;
}

@keyframes insight-img-in {
  from {
    opacity: 0.35;
    transform: scale(1.08);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ==========================================================================
   客户案例
   ========================================================================== */
.cases {
  /* 设计稿：区块 5694~6599，上 90px、下 110px */
  padding: 90px 0 110px;
  background: #fff;
}

.cases .section-title {
  margin-top: 30px;
}

.cases .section-head {
  margin-bottom: 85px;
}

.cases__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.case-card {
  position: relative;
  border-radius: 4px;
  background: var(--bg-soft);
  overflow: hidden;
  cursor: pointer;
  transition: background-color .45s ease, box-shadow .58s cubic-bezier(.16, 1, .3, 1), transform .58s cubic-bezier(.16, 1, .3, 1);
}

.case-card::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: 0;
  z-index: 0;
  width: 20px;
  height: 20px;
  background: var(--blue);
  transform: scale(1);
  transform-origin: bottom right;
  transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.3, 1);
}
.case-card:hover {
          box-shadow: 0 26px 52px rgba(6, 27, 45, .18);
            transform: translateY(-8px);
}

.case-card:hover::after {
  transform: scale(24, 28);
}

.case-card__img {
  position: relative;
  z-index: 1;
  aspect-ratio: 460 / 320;
  overflow: hidden;
}

.case-card__img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-card__body {
  position: relative;
  z-index: 1;
  padding: 0 30px 60px;
}

.case-card__no {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 70px;
  height: 70px;
  margin-top: -40px;
  border-radius: 4px;
  background: var(--blue);
  font-size: 30px;
  font-weight: bold;
  line-height: 40px;
  letter-spacing: 0.4px;
  color: #fff;
  transition: background 0.3s ease;
}

.case-card h3 {
  margin-top: 35px;
  font-size: 20px;
  line-height: 20px;
  letter-spacing: 0.4px;
  color: var(--text);
  transition: color 0.3s ease;
}

.case-card p {
  margin-top: 25px;
  font-size: 14px;
  line-height: 28px;
  letter-spacing: 0.4px;
  color: var(--muted);
  transition: color 0.3s ease;
}

.case-card:hover h3 {
  color: #fff;
}

.case-card:hover p {
  color: rgba(255, 255, 255, 0.75);
}

.case-card:hover .case-card__no {
  background: var(--red);
}

/* 首次进入视口：卡片从右往左依次滑出 */
.cases.is-visible .case-card {
  animation: case-slide-in 0.9s cubic-bezier(0.22, 0.75, 0.3, 1) both;
}

.cases.is-visible .case-card:nth-child(2) {
  animation-delay: 0.12s;
}

.cases.is-visible .case-card:nth-child(3) {
  animation-delay: 0.24s;
}

@keyframes case-slide-in {
  from {
    opacity: 0;
    transform: translateX(90px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ==========================================================================
   合作客户
   ========================================================================== */
.partners {
  /* 设计稿：区块 6599~7164，上 90px、下 125px */
  padding: 90px 0 125px;
  background: var(--bg-soft);
}

.marquee {
  position: relative;
  width: 100%;
  height: 80px;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 48px, #000 calc(100% - 48px), transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 48px, #000 calc(100% - 48px), transparent 100%);
}

.marquee--top {
  margin-top: 0; /* 间距由标题组的 margin-bottom 提供 */
}

.marquee--bottom {
  margin-top: 30px;
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee-left 45s linear infinite;
}

.marquee--reverse .marquee__track {
  animation-name: marquee-right;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

.marquee__group {
  display: flex;
}

@keyframes marquee-left {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

@keyframes marquee-right {
  from {
    transform: translateX(-50%);
  }
  to {
    transform: translateX(0);
  }
}

.partner {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 215px;
  height: 80px;
  margin-right: 30px;
  padding: 0 16px;
  border-radius: 4px;
  background: #fff;
}

.partner img {
  max-width: 100%;
  max-height: 46px;
  object-fit: contain;
}

/* ==========================================================================
   CTA
   ========================================================================== */
.cta {
  /* 设计稿：区块 7170~7804，上 115px、下 116px */
  padding: 115px 0 116px;
  margin-top: 6px;
  background: var(--blue);
}

.cta__grid {
  display: grid;
  grid-template-columns: 739fr 786fr;
  align-items: center;
}

.cta__img {
  position: relative;
  aspect-ratio: 739 / 390;
  overflow: hidden;
  border-radius: 4px;
}

.cta__img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cta__panel {
  margin-left: clamp(-85px, -4vw, -24px);
  padding: clamp(40px, 4.6vw, 71px) clamp(28px, 4.6vw, 72px) clamp(36px, 3vw, 48px);
  border-radius: 4px;
  background: #fff;
  text-align: center;
}

.cta__panel h2 {
  font-size: 40px;
  line-height: 50px;
  letter-spacing: 0.4px;
  color: var(--text);
}

.cta__panel p {
  margin-top: 24px;
  font-size: 14px;
  line-height: 32px;
  letter-spacing: 0.4px;
  color: var(--muted);
}

.cta__panel .btn-primary--lg {
  margin-top: 41px;
}

/* 首次进入视口：左右两块从左往右依次滑入 */
.cta.is-visible .cta__img {
  animation: cta-slide-in 0.9s cubic-bezier(0.22, 0.75, 0.3, 1) both;
}

.cta.is-visible .cta__panel {
  animation: cta-slide-in 0.9s cubic-bezier(0.22, 0.75, 0.3, 1) 0.15s both;
}

@keyframes cta-slide-in {
  from {
    opacity: 0;
    transform: translateX(-90px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  position: relative;
  /* 设计稿：区块 7804~8401，上 76px、下 22px */
  padding: 76px 0 22px;
  overflow: hidden;
  color: #fff;
}

.footer__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

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

.footer__mask {
  position: absolute;
  inset: 0;
  background: rgba(3, 9, 17, 0.85);
}

.footer__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.8fr) auto;
  gap: clamp(40px, 6vw, 100px);
}

.footer__logo {
  display: block;
  width: 86px;
  height: 32px;
}

.footer__logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.footer__slogan {
  margin-top: 20px;
  font-size: 16px;
  line-height: 16px;
  letter-spacing: 0.4px;
  color: #fff;
}

.footer__contact {
  margin-top: 39px;
}

.footer__contact li {
  font-size: 16px;
  line-height: 40px;
  letter-spacing: 0.4px;
  color: rgba(255, 255, 255, 0.7);
}

.footer__contact span {
  display: inline-block;
  width: 108px;
  color: #fff;
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 47px;
  padding-top: 44px;
  font-size: 16px;
  line-height: 16px;
  letter-spacing: 0.4px;
  color: #fff;
}

.footer__nav a:first-child {
  font-weight: bold;
}

.footer__qr {
  width: 159px;
  height: 159px;
  margin-top: 44px;
  padding: 6px;
  background: #fff;
}

.footer__qr img {
  width: 147px;
  height: 147px;
}

.footer__wechat {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 16px;
  line-height: 16px;
  letter-spacing: 0.4px;
  color: #fff;
}

.footer__wechat img {
  width: 18px;
  height: 18px;
}

.footer__bottom {
  position: relative;
  z-index: 2;
  margin-top: 61px;
}

.footer__divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.15);
}

.footer__copy {
  margin-top: 10px;
  font-size: 14px;
  line-height: 40px;
  letter-spacing: 0.4px;
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

/* ==========================================================================
   产品详情页共用样式（product-detail）
   ========================================================================== */

/* ---------- Hero ---------- */
.pd-hero {
  position: relative;
  height: 540px;
  background: linear-gradient(135deg, #0a1725 0%, var(--blue) 60%, #1f5c97 100%);
  display: flex;
  align-items: center;
  color: #fff;
  overflow: hidden;
}
.pd-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('image/products-bg.svg') no-repeat center / cover;
  opacity: 0.18;
}
.pd-hero__inner { position: relative; z-index: 2; padding-top: 60px; }
.pd-hero__breadcrumb {
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.8px;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 24px;
}
.pd-hero__breadcrumb a {
  color: rgba(255, 255, 255, 0.65);
  transition: color 0.2s;
}
.pd-hero__breadcrumb a:hover { color: #fff; }
.pd-hero__no {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.15);
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.8px;
}
.pd-hero__name {
  margin-top: 18px;
  font-family: var(--font-en);
  font-size: 60px;
  line-height: 70px;
  letter-spacing: 0.4px;
  font-weight: bold;
}
.pd-hero__sub {
  margin-top: 10px;
  font-size: 22px;
  line-height: 30px;
  color: rgba(255, 255, 255, 0.9);
}
.pd-hero__line {
  width: 361px; height: 12px; margin-top: -2px;
  background: linear-gradient(90deg, rgba(22, 97, 185, 0.5) 23.61%, rgba(233, 32, 60, 0.5) 100%);
}
.pd-hero__slogan {
  margin-top: 28px;
  font-size: 24px;
  line-height: 38px;
  font-weight: bold;
  letter-spacing: 0.4px;
  color: #fff;
}
.pd-hero__desc {
  max-width: 846px;
  margin-top: 18px;
  font-size: 14px;
  line-height: 28px;
  color: rgba(255, 255, 255, 0.85);
}
.pd-hero__cta { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 客户痛点 ---------- */
.pd-pain { padding: 90px 0; background: #fff; }
.pd-pain__grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.pd-pain__card {
  position: relative;
  padding: 32px 28px;
  border-radius: 8px;
  background: var(--bg-soft);
  border-top: 4px solid var(--blue);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.pd-pain__card:hover { transform: translateY(-4px); box-shadow: 0 14px 32px rgba(15, 32, 56, 0.08); }
.pd-pain__card:nth-child(2) { border-top-color: var(--red); }
.pd-pain__card:nth-child(3) { border-top-color: #1f5c97; }
.pd-pain__no {
  font-family: var(--font-en);
  font-size: 48px;
  font-weight: bold;
  color: var(--blue);
  opacity: 0.18;
  line-height: 1;
}
.pd-pain__card:nth-child(2) .pd-pain__no { color: var(--red); }
.pd-pain__card:nth-child(3) .pd-pain__no { color: #1f5c97; }
.pd-pain__title { margin-top: -10px; font-size: 20px; line-height: 28px; color: var(--text); }
.pd-pain__desc { margin-top: 14px; font-size: 13px; line-height: 24px; color: var(--muted); }

/* ---------- 4 大核心立柱 ---------- */
.pd-pillars {
  padding: 90px 0;
  background: var(--bg-soft);
}
.pd-pillars__grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.pd-pillar {
  position: relative;
  padding: 32px 30px;
  border-radius: 8px;
  background: #fff;
  border-left: 4px solid var(--blue);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.pd-pillar:hover { transform: translateY(-4px); box-shadow: 0 14px 32px rgba(15, 32, 56, 0.08); }
.pd-pillar:nth-child(2) { border-left-color: var(--red); }
.pd-pillar:nth-child(4) { border-left-color: var(--red); }
.pd-pillar__no {
  position: absolute;
  top: 24px;
  right: 28px;
  font-family: var(--font-en);
  font-size: 36px;
  font-weight: bold;
  color: var(--blue);
  opacity: 0.12;
  line-height: 1;
}
.pd-pillar__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 8px;
  background: rgba(27, 72, 125, 0.1);
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: bold;
  color: var(--blue);
}
.pd-pillar:nth-child(even) .pd-pillar__icon { background: rgba(214, 25, 24, 0.1); color: var(--red); }
.pd-pillar__title { margin-top: 18px; font-size: 22px; line-height: 30px; color: var(--text); }
.pd-pillar__desc { margin-top: 12px; font-size: 14px; line-height: 26px; color: var(--muted); }

/* ---------- 功能架构 ---------- */
.pd-features { padding: 100px 0; background: #fff; }
.pd-features__grid {
  margin-top: 60px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border: 1px solid #e9edf2;
  border-radius: 12px;
  overflow: hidden;
}
.pd-feature {
  padding: 36px 32px;
  border-right: 1px solid #e9edf2;
  border-bottom: 1px solid #e9edf2;
  transition: background 0.3s ease;
}
.pd-feature:hover { background: var(--bg-soft); }
.pd-feature:nth-child(2n) { border-right: 0; }
.pd-feature:nth-last-child(-n+2) { border-bottom: 0; }
.pd-feature__no {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 4px;
  background: rgba(27, 72, 125, 0.08);
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: bold;
  color: var(--blue);
}
.pd-feature__title { margin-top: 16px; font-size: 20px; line-height: 28px; color: var(--text); }
.pd-feature__desc { margin-top: 12px; font-size: 13px; line-height: 24px; color: var(--muted); }
.pd-feature__tags {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.pd-feature__tag {
  padding: 4px 10px;
  border-radius: 3px;
  background: rgba(27, 72, 125, 0.06);
  font-size: 11px;
  color: var(--blue);
}

/* ---------- 合规对标 ---------- */
.pd-compliance { padding: 80px 0; background: var(--bg-soft); }
.pd-compliance__grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.pd-compliance__chip {
  padding: 24px 20px;
  border-radius: 8px;
  background: #fff;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.pd-compliance__chip:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(15, 32, 56, 0.08); }
.pd-compliance__chip strong {
  display: block;
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: bold;
  color: var(--blue);
}
.pd-compliance__chip span {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 20px;
  color: var(--muted);
}

/* ---------- 应用案例 ---------- */
.pd-scenarios { padding: 90px 0 100px; background: #fff; }
.pd-scenarios__grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.pd-scenario {
  padding: 28px 24px;
  border-radius: 8px;
  background: var(--bg-soft);
  border-top: 4px solid var(--blue);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.pd-scenario:hover { transform: translateY(-4px); box-shadow: 0 14px 32px rgba(15, 32, 56, 0.08); }
.pd-scenario:nth-child(2) { border-top-color: var(--red); }
.pd-scenario:nth-child(3) { border-top-color: #1f5c97; }
.pd-scenario__tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 3px;
  background: rgba(27, 72, 125, 0.08);
  font-size: 12px;
  color: var(--blue);
  font-weight: bold;
}
.pd-scenario__title { margin-top: 16px; font-size: 18px; line-height: 26px; color: var(--text); }
.pd-scenario__desc { margin-top: 12px; font-size: 13px; line-height: 24px; color: var(--muted); }
.pd-scenario__metric {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed #e9edf2;
  font-family: var(--font-en);
  font-size: 12px;
  color: var(--muted);
}
.pd-scenario__metric strong { color: var(--blue); font-size: 20px; }

/* ---------- 客户证言 ---------- */
.pd-quote {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--blue) 0%, #1f5c97 100%);
  color: #fff;
  text-align: center;
}
.pd-quote blockquote {
  max-width: 760px;
  margin: 0 auto;
  font-size: 22px;
  line-height: 38px;
  color: #fff;
}
.pd-quote blockquote::before { content: '"'; }
.pd-quote blockquote::after { content: '"'; }
.pd-quote__by {
  margin-top: 28px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
}

/* ---------- CTA ---------- */
.pd-cta {
  padding: 80px 0;
  background: var(--bg-soft);
  text-align: center;
}
.pd-cta h2 { font-size: 36px; line-height: 44px; color: var(--text); }
.pd-cta p {
  max-width: 720px; margin: 18px auto 0;
  font-size: 14px; line-height: 28px; color: var(--muted);
}
.pd-cta .btn-primary { margin-top: 36px; }

@media (max-width: 900px) {
  .pd-pain__grid,
  .pd-pillars__grid,
  .pd-features__grid,
  .pd-compliance__grid,
  .pd-scenarios__grid {
    grid-template-columns: 1fr;
  }
  .pd-feature { border-right: 0; border-bottom: 1px solid #e9edf2; }
}

/* ---------- 1) Body 入场 ---------- */
body {
  animation: body-fade-in 0.6s ease-out both;
}

@keyframes body-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ---------- 2) 通用 section 入场：除 banner / hero / footer 外，所有 section 进入视口时由下往上淡入 ----------
   注：默认显示（无 JS 也能看），只有当 <html> 加载了 .js-ready 类（由 main.js 设置）后，
   且 section 未带 .is-visible 时才隐藏。这样 JS 加载失败时页面仍可见。 */
/* 注意：全局入场用 is-inview，避免与各模块自用的 is-visible 动画类冲突
   （首页 about/news 的旧动画会在播放结束后移除 is-visible，若共用会导致区块被重新隐藏） */
.js-ready .page > section:not(.page-hero):not(.footer):not(.banner):not(.is-inview) {
  opacity: 0;
  transform: translateY(48px);
  transition: opacity 0.85s cubic-bezier(0.22, 0.75, 0.3, 1),
              transform 0.85s cubic-bezier(0.22, 0.75, 0.3, 1);
}

.js-ready .page > section:not(.page-hero):not(.footer):not(.banner).is-inview {
  opacity: 1;
  transform: translateY(0);
}

/* 第一个进入的 section 立即入场（无需滚动触发） */
.page > section.is-visible--first {
  opacity: 1 !important;
  transform: none !important;
}

/* ---------- 3) link-more 箭头右移增强（统一） ---------- */
.link-more img {
  transition: transform 0.3s cubic-bezier(0.22, 0.75, 0.3, 1);
}

.link-more:hover img {
  transform: translateX(6px);
}

/* ---------- 4) 通用按钮悬浮：箭头旋转+位移 ---------- */
.btn-primary:hover {
  letter-spacing: 0.6px;
}

.btn-primary__arrow img {
  transition: transform 0.45s cubic-bezier(0.22, 0.75, 0.3, 1), filter 0.3s ease;
}

/* ---------- 5) 文本渐显（可选） ---------- */
.reveal-text {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s cubic-bezier(0.22, 0.75, 0.3, 1),
              transform 0.8s cubic-bezier(0.22, 0.75, 0.3, 1);
}

.reveal-text.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 6) 缩略图悬浮缩放 ---------- */
img {
  transition: filter 0.4s ease, transform 0.4s ease;
}

/* 父元素 hover 时图片轻微放大 */
.case-card__media:hover img,
.pd__media:hover img,
.flow-node:hover img {
  transform: scale(1.05);
}

/* ---------- 7) Section-head 入场（仅在 JS 就绪且 section 未入场时隐藏） ---------- */
.js-ready .page > section .section-head {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.22, 0.75, 0.3, 1) 0.1s,
              transform 0.7s cubic-bezier(0.22, 0.75, 0.3, 1) 0.1s;
}

.js-ready .page > section.is-inview .section-head {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 8) 减少动画的用户偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .page > section:not(.page-hero):not(.footer) {
    opacity: 1;
    transform: none;
  }
}

/* ==========================================================================
   预约信息收集抽屉（全局，由 main.js 注入 DOM）
   ========================================================================== */
.lead-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(10, 23, 37, 0.55);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.lead-overlay.is-open { opacity: 1; visibility: visible; }

.lead-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 201;
  display: flex;
  flex-direction: column;
  width: min(430px, 94vw);
  background: #fff;
  box-shadow: -20px 0 60px rgba(3, 15, 30, 0.3);
  transform: translateX(105%);
  transition: transform 0.45s cubic-bezier(0.22, 0.75, 0.3, 1);
}
.lead-drawer.is-open { transform: translateX(0); }

.lead-drawer__head {
  position: relative;
  padding: 30px 30px 26px;
  background: linear-gradient(135deg, var(--blue), #2a5e97);
  color: #fff;
}
.lead-drawer__head .section-en {
  font-size: 12px;
  letter-spacing: 1.4px;
  color: rgba(255, 255, 255, 0.65);
}
.lead-drawer__head h3 { margin-top: 10px; font-size: 24px; line-height: 30px; }
.lead-drawer__head p { margin-top: 8px; font-size: 13px; line-height: 22px; color: rgba(255, 255, 255, 0.82); }
.lead-drawer__close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.25s ease;
}
.lead-drawer__close:hover { background: var(--red); transform: rotate(90deg); }

.lead-form {
  flex: 1;
  overflow-y: auto;
  padding: 26px 30px 30px;
}
.lead-field { margin-bottom: 16px; }
.lead-field label {
  display: block;
  margin-bottom: 7px;
  font-size: 13px;
  color: var(--text);
}
.lead-field label i { font-style: normal; color: var(--red); margin-right: 3px; }
.lead-field input,
.lead-field select,
.lead-field textarea {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  border: 1.5px solid #dde5ee;
  border-radius: 6px;
  background: #fff;
  font-size: 14px;
  font-family: var(--font-cn);
  color: var(--text);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  outline: none;
}
.lead-field textarea { height: 84px; padding: 11px 14px; resize: vertical; }
.lead-field input:focus,
.lead-field select:focus,
.lead-field textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(27, 72, 125, 0.12);
}
.lead-field.has-error input,
.lead-field.has-error select { border-color: var(--red); }
.lead-field__err {
  display: none;
  margin-top: 5px;
  font-size: 12px;
  color: var(--red);
}
.lead-field.has-error .lead-field__err { display: block; }

.lead-submit {
  width: 100%;
  height: 48px;
  margin-top: 6px;
  border: 0;
  border-radius: 8px;
  background-image: linear-gradient(90deg, var(--red), var(--red-light));
  color: #fff;
  font-size: 16px;
  font-family: var(--font-cn);
  letter-spacing: 1px;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.lead-submit:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(214, 25, 24, 0.32); }
.lead-privacy { margin-top: 14px; font-size: 11px; line-height: 18px; color: #9aa5ae; }

/* 提交成功态 */
.lead-done {
  display: none;
  flex: 1;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 34px;
  text-align: center;
}
.lead-done.is-show { display: flex; }
.lead-done__icon {
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: rgba(46, 156, 88, 0.12);
  color: #2e9c58;
  font-size: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: lead-pop 0.5s cubic-bezier(0.25, 0.8, 0.3, 1.4) both;
}
@keyframes lead-pop {
  from { transform: scale(0.3); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.lead-done h4 { margin-top: 22px; font-size: 20px; color: var(--text); }
.lead-done p { margin-top: 10px; font-size: 13px; line-height: 24px; color: var(--muted); }
.lead-done button {
  margin-top: 26px;
  padding: 11px 34px;
  border: 1.5px solid var(--blue);
  border-radius: 40px;
  background: #fff;
  color: var(--blue);
  font-size: 14px;
  font-family: var(--font-cn);
  cursor: pointer;
  transition: all 0.25s ease;
}
.lead-done button:hover { background: var(--blue); color: #fff; }

/* ==========================================================================
   导航自适应（≤1280 收紧 / ≤1024 汉堡 + 移动端抽屉，DOM 由 main.js 注入）
   ========================================================================== */
/* 汉堡按钮（桌面隐藏） */
.nav__burger {
  display: none;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
}
.nav__burger i {
  position: relative;
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  transition: background 0.3s ease;
}
.nav__burger i::before,
.nav__burger i::after {
  content: '';
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: #fff;
  transition: transform 0.3s ease, background 0.3s ease;
}
.nav__burger i::before { top: -7px; }
.nav__burger i::after { top: 7px; }
.nav.is-sticky .nav__burger i,
.nav.is-sticky .nav__burger i::before,
.nav.is-sticky .nav__burger i::after { background: var(--text); }

/* 中屏收紧 */
@media (max-width: 1280px) {
  .nav__menu { gap: clamp(14px, 2vw, 24px); }
  .nav__item { font-size: 16px; }
  .nav__tel { display: none; }
  .nav__icons { display: none; }
}

/* 小屏：收起桌面菜单，出汉堡 */
@media (max-width: 1024px) {
  .nav__menu { display: none; }
  .nav__burger { display: flex; margin-left: auto; }
  .nav__inner { height: 68px; }
}

/* ---------- 移动端抽屉 ---------- */
.mnav {
  position: fixed;
  inset: 0;
  z-index: 300;
  visibility: hidden;
}
.mnav__mask {
  position: absolute;
  inset: 0;
  background: rgba(10, 23, 37, 0.55);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.mnav__panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  width: min(340px, 86vw);
  padding-bottom: 34px;
  background: #fff;
  box-shadow: -18px 0 50px rgba(3, 15, 30, 0.28);
  transform: translateX(102%);
  transition: transform 0.4s cubic-bezier(0.22, 0.75, 0.3, 1);
  overflow-y: auto;
}
.mnav.is-open { visibility: visible; }
.mnav.is-open .mnav__mask { opacity: 1; }
.mnav.is-open .mnav__panel { transform: translateX(0); }

.mnav__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 16px;
  border-bottom: 1px solid #eef1f5;
}
.mnav__head img { width: 86px; height: 32px; object-fit: contain; }
.mnav__close {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: var(--bg-soft);
  color: var(--text);
  font-size: 16px;
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease;
}
.mnav__close:hover { background: var(--red); color: #fff; transform: rotate(90deg); }

.mnav__list { padding: 8px 0; }
.mnav__item { border-bottom: 1px solid #f3f5f8; }
.mnav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 22px;
  font-size: 16px;
  font-weight: bold;
  color: var(--text);
}
.mnav__link:active { background: var(--bg-soft); }
.mnav__caret {
  font-style: normal;
  color: var(--muted);
  font-size: 13px;
  transition: transform 0.3s ease;
}
.mnav__item.is-open .mnav__caret { transform: rotate(180deg); color: var(--red); }
.mnav__sub {
  max-height: 0;
  overflow: hidden;
  background: var(--bg-soft);
  transition: max-height 0.38s cubic-bezier(0.22, 0.75, 0.3, 1);
}
.mnav__item.is-open .mnav__sub { max-height: 460px; }
.mnav__sub a {
  display: block;
  padding: 12px 22px 12px 34px;
  font-size: 14px;
  color: var(--muted);
  border-top: 1px dashed #e6ecf3;
}
.mnav__sub a b { display: inline; margin-right: 8px; color: var(--text); font-size: 14px; }
.mnav__sub a:active { color: var(--blue); }

.mnav__foot {
  margin-top: auto;
  padding: 20px 22px 0;
  border-top: 1px solid #eef1f5;
}
.mnav__tel {
  display: inline-block;
  font-size: 18px;
  font-weight: bold;
  color: var(--blue);
}
.mnav__mail { display: block; margin-top: 6px; font-size: 13px; color: var(--muted); }

/* ==========================================================================
   EDC 产品页 · 新增区块（试验领域 / 合规专区 / 4000+ 项目）
   ========================================================================== */

/* section-head__sub：副标题小字（如未在原文件中存在则启用此段） */
.section-head__sub {
  max-width: 780px;
  margin: 18px auto 0;
  font-size: 14px;
  line-height: 28px;
  color: var(--muted);
  text-align: center;
}

/* ---------- 试验领域数据卡片（8 大领域） ---------- */
.edc-domains {
  padding: clamp(48px, 4vw, 80px) 0;
  background: var(--bg-soft);
}
.edc-domains__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.edc-domains__item {
  background: var(--white);
  padding: 28px 24px;
  border-radius: 10px;
  text-align: center;
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.edc-domains__item:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(27, 72, 125, 0.08);
}
.edc-domains__item strong {
  display: block;
  font-family: var(--font-en);
  font-size: 36px;
  line-height: 1;
  color: var(--blue);
  margin-bottom: 8px;
}
.edc-domains__item span {
  color: var(--muted);
  font-size: 14px;
}

/* ---------- 合规专区（5 重合规框架） ---------- */
.edc-compliance {
  padding: clamp(64px, 5.2vw, 100px) 0;
  background: linear-gradient(180deg, var(--white) 0%, var(--bg-soft) 100%);
}
.edc-compliance__list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.edc-compliance__item {
  position: relative;
  background: var(--white);
  padding: 32px 32px 32px 88px;
  border-radius: 12px;
  border: 1px solid rgba(27, 72, 125, 0.08);
  box-shadow: 0 4px 12px rgba(27, 72, 125, 0.04);
}
.edc-compliance__no {
  position: absolute;
  left: 24px;
  top: 28px;
  font-family: var(--font-en);
  font-size: 32px;
  line-height: 1;
  font-weight: 700;
  background: linear-gradient(135deg, var(--blue) 0%, var(--red-alt) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.edc-compliance__item h4 {
  font-size: 18px;
  line-height: 1.5;
  color: var(--blue);
  margin-bottom: 10px;
}
.edc-compliance__item p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 4000+ 项目的共同选择 ---------- */
.edc-projects {
  padding: clamp(64px, 5.2vw, 100px) 0;
  background: var(--bg-soft-2);
}

/* 试验分期占比 */
.edc-projects__phases {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 64px;
}
.edc-projects__phases-major {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.edc-projects__phases-minor {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 14px;
}
.edc-projects__phase {
  background: var(--white);
  padding: 24px 16px;
  text-align: center;
  border-radius: 10px;
  border-top: 3px solid var(--blue);
}
.edc-projects__phase--big {
  background: linear-gradient(135deg, var(--blue) 0%, #1f5c97 100%);
  border-top-color: var(--red-alt);
}
.edc-projects__phase--big span {
  color: #fff;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.5px;
}
.edc-projects__phase strong {
  display: block;
  font-family: var(--font-en);
  font-size: 28px;
  line-height: 1;
  color: var(--red-alt);
  margin-bottom: 8px;
}
.edc-projects__phase--big strong { color: var(--white); font-size: 36px; }
.edc-projects__phase span {
  color: var(--muted);
  font-size: 13px;
}

/* 移动端：两组都改为 2 列堆叠 */
@media (max-width: 768px) {
  .edc-projects__phases-major,
  .edc-projects__phases-minor {
    grid-template-columns: 1fr 1fr;
  }
}

/* Logo 墙 */
.edc-projects__block-title {
  font-size: 22px;
  color: var(--blue);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid rgba(27, 72, 125, 0.1);
}
.edc-projects__logos { margin-bottom: 64px; }
.edc-projects__logo-group { margin-bottom: 24px; }
.edc-projects__logo-group h4 {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 12px;
  font-weight: 500;
  letter-spacing: 1px;
}
.edc-projects__logo-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background: var(--white);
  padding: 24px;
  border-radius: 10px;
}
.edc-projects__logo-row img {
  max-width: 100%;
  height: 48px;
  object-fit: contain;
  opacity: 0.65;
  filter: grayscale(20%);
  transition: opacity 0.25s ease, filter 0.25s ease;
}
.edc-projects__logo-row img:hover {
  opacity: 1;
  filter: none;
}

/* 上市药品清单 */
.edc-projects__drugs-intro {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 24px;
}
.edc-projects__drugs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.edc-projects__drug {
  background: var(--white);
  padding: 24px 28px;
  border-radius: 10px;
  border-left: 4px solid var(--red-alt);
}
.edc-projects__drug strong {
  display: block;
  font-size: 16px;
  color: var(--blue);
  margin-bottom: 10px;
}
.edc-projects__drug span {
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

/* ==========================================================================
   客户案例页 · 顶级案例卡片（期刊成果区）
   ========================================================================== */
.cases-spotlight {
  padding: clamp(64px, 5.2vw, 100px) 0;
  background: linear-gradient(180deg, var(--bg-soft) 0%, var(--white) 100%);
}
.cases-spotlight__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.cases-spotlight__card {
  background: var(--white);
  padding: 32px;
  border-radius: 12px;
  border-left: 4px solid var(--red-alt);
  box-shadow: 0 4px 16px rgba(27, 72, 125, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.cases-spotlight__card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(27, 72, 125, 0.12);
}
.cases-spotlight__tag {
  display: inline-block;
  background: var(--bg-soft);
  color: var(--blue);
  padding: 6px 14px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}
.cases-spotlight__card h3 {
  font-size: 18px;
  line-height: 1.5;
  color: var(--blue);
  margin-bottom: 12px;
}
.cases-spotlight__card p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  margin-bottom: 8px;
}
.cases-spotlight__card em {
  font-style: italic;
  color: var(--text);
  font-weight: 500;
}
.cases-spotlight__ability {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed rgba(27, 72, 125, 0.15);
  color: var(--text) !important;
}
.cases-spotlight__ability strong {
  color: var(--red-alt);
  margin-right: 4px;
}