/* ════════════════════════════════════════════════════════════
   正糖名家官网 · 交互原型 v0.2（真实素材版）
   style.css — 按1920px设计稿1:1比例复原
   设计稿色值采样：主色#04A9BC / 深青#08869C / 浅青#E4F6F8
   导航 rgba(1,119,144,.6) / Footer #5DBCCE
   ════════════════════════════════════════════════════════════ */

:root {
  --c-main: #04A9BC;        /* 品牌主色·青 */
  --c-main-deep: #08869C;   /* 主色加深 */
  --c-main-dark: #017790;   /* 导航深青 */
  --c-light: #E4F6F8;       /* 浅青背景 */
  --c-lighter: #F2F3F5;     /* 极浅灰 */
  --c-footer: #5DBCCE;      /* 过渡区青 */
  --c-orange: #D6A071;      /* 暖棕点缀 */
  --c-red: #912824;         /* 党建红 */
  --c-blue: #23B4C5;        /* 品牌蓝 */
  --c-green: #1E7A4C;       /* 媒体绿 */
  --t-1: #333333;
  --t-2: #666666;
  --t-3: #999999;
  --nav-h: 86px;
  --container: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "思源黑体", sans-serif;
  color: var(--t-1);
  background: #fff;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
#app { overflow-x: clip; }
img { display: block; max-width: 100%; border: 0; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; border: 0; background: none; cursor: pointer; }
ul { list-style: none; }

.container { width: var(--container); max-width: 92%; margin: 0 auto; }

/* ───────── 页面切换 ───────── */
.page { display: none; }
.page.active { display: block; }

/* ═══════════════════ 导航栏 ═══════════════════ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(1, 119, 144, .45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.nav-inner {
  width: 100%; max-width: none; height: 100%; margin: 0;
  padding: 0 clamp(24px, 2vw, 154px);
  position: relative; display: flex; align-items: center;
}
.nav-logo { margin-right: auto; }
.nav-logo img { height: 44px; width: auto; }
.nav-menu { position: absolute; left: 50%; transform: translateX(-50%); display: flex; align-items: center; gap: 6px; }
.nav-item { position: relative; }
.nav-item > a {
  display: flex; align-items: center; gap: 6px;
  padding: 12px 18px; color: #fff; font-size: 17px; letter-spacing: 1px;
  transition: color .25s;
}
.nav-item > a:hover { color: #CFF6FB; }
.nav-item.active > a { color: #fff; font-weight: 600; }
.nav-item.active > a::after {
  content: ""; position: absolute; left: 50%; transform: translateX(-50%);
  bottom: 4px; width: 26px; height: 3px; border-radius: 2px; background: #fff;
}
.arr { width: 0; height: 0; border: 4px solid transparent; border-top-color: #fff; margin-top: 3px; transition: transform .25s; }
.nav-item.has-sub:hover .arr { transform: rotate(180deg); }

/* 下拉子菜单 */
.sub-menu {
  position: absolute; top: calc(100% + 6px); left: 50%; transform: translateX(-50%) translateY(8px);
  background: rgba(255,255,255,.98); border-radius: 8px; overflow: hidden;
  box-shadow: 0 10px 30px rgba(4,80,95,.18);
  min-width: 132px; padding: 6px 0;
  opacity: 0; visibility: hidden; transition: all .25s ease;
}
.nav-item.has-sub:hover .sub-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.sub-menu li a {
  display: block; padding: 10px 20px; font-size: 14px; color: var(--t-2);
  white-space: nowrap; text-align: center; transition: all .2s;
}
.sub-menu li a:hover { color: var(--c-main); background: var(--c-light); }

/* 汉堡 */
.nav-burger { display: none; width: 40px; height: 40px; position: relative; }
.nav-burger span {
  position: absolute; left: 8px; right: 8px; height: 2px; background: #fff; border-radius: 2px;
  transition: all .3s;
}
.nav-burger span:nth-child(1) { top: 13px; }
.nav-burger span:nth-child(2) { top: 20px; }
.nav-burger span:nth-child(3) { top: 27px; }
.nav-burger.open span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { top: 20px; transform: rotate(-45deg); }

/* ═══════════════════ 首页 Banner ═══════════════════ */
/* 横幅图片等比显示：宽度 100%，高度按原图比例自动缩放；各层容器高度均由图片撑起（素材 1920×1110） */
.banner { position: relative; height: auto; min-height: 0; overflow: hidden; }
.banner-track { display: flex; align-items: flex-start; height: auto; transition: transform .9s ease; will-change: transform; }
.banner-track.is-resetting { transition: none; }
.banner-slide { position: relative; flex: 0 0 100%; height: auto; }
.banner-slide img { display: block; width: 100%; height: auto; }
.banner-overlay {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
}
.banner-frame {
  background: url("/site-design/assets/home/brand-frame.png") center/100% 100% no-repeat;
  width: 724px; max-width: 46vw; padding: 48px 56px; text-align: center; color: #fff;
}
.banner-frame h2 { font-size: clamp(20px, 2.3vw, 38px); line-height: 1.45; letter-spacing: 3px; text-shadow: 0 2px 8px rgba(2,90,110,.35); }
.banner-frame p { margin: 16px 0 24px; font-size: clamp(13px, 1.15vw, 19px); letter-spacing: 4px; opacity: .95; }
.banner-btn { display: inline-block; }
.banner-btn img { height: 40px; width: auto; transition: transform .3s; }
.banner-btn:hover img { transform: translateY(-3px); }

.banner-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(1,90,110,.28); color: #fff; font-size: 34px; line-height: 1;
  transition: background .25s;
}
.banner-arrow:hover { background: rgba(1,90,110,.55); }
.banner-arrow.prev { left: 24px; }
.banner-arrow.next { right: 24px; }
.banner-dots { position: absolute; bottom: 34px; left: 0; right: 0; display: flex; justify-content: center; gap: 12px; z-index: 5; }
.banner-dots i {
  width: 12px; height: 12px; border-radius: 6px; background: rgba(255,255,255,.55);
  cursor: pointer; transition: all .3s;
}
.banner-dots i.on { width: 34px; background: #fff; }

/* 子页面Banner：高度随图片等比自动撑开 */
.sub-banner { height: auto; min-height: 0; overflow: hidden; }
.sub-banner img { display: block; width: 100%; height: auto; }

/* ═══════════════════ 通用模块 ═══════════════════ */
.mod { position: relative; }
.mod-title { font-size: clamp(22px, 2.1vw, 36px); color: var(--c-main-deep); letter-spacing: 2px; }
.en-tag { display: inline-block; font-size: 13px; letter-spacing: 5px; color: var(--c-main); margin-bottom: 10px; text-transform: uppercase; }

/* ───────── 首页·品牌特色（设计稿815px → 42.4vw） ───────── */
.mod-brand {
  height: 32.4vw; min-height: 520px;
  background: url("/site-design/assets/home/brand-bg.png") center/100% 100% no-repeat;
  display: flex; align-items: center;
}
.brand-grid { display: flex; align-items: center; gap: 60px; }
.brand-text { flex: 1.1; }
.brand-text .mod-title { margin-bottom: 18px; }
.brand-desc { font-size: 15px; line-height: 2; color: var(--t-2); text-align: justify; margin-bottom: 28px; }
.btn-img { display: inline-block; }
.btn-img img { height: 40px; transition: transform .3s, filter .3s; }
.btn-img:hover img { transform: translateY(-3px); filter: brightness(1.06); }

.brand-points { flex: 0.9; }
.mod-brand .brand-grid { width: 1152px; max-width: calc(100% - 40px); gap: clamp(42px, 6vw, 87px); }
.mod-brand .brand-text { flex: 1.06; position: relative; top: 14px; padding-top: 34px; padding-left: 22px; margin-left: -15%; }
.mod-brand .brand-text .mod-title {
  margin-bottom: 24px;
  font-family: "HarmonyOS Sans SC", sans-serif;
  font-weight: bold;
  color: #04AABB;
}
.mod-brand .brand-desc { margin-bottom: 50px; }
.mod-brand .brand-points { flex: 1; display: grid; gap: 28px; position: relative; top: -8px; margin-right: -15%; }
.brand-frame {
  min-height: 189px; background: rgba(255,255,255,.82); border-radius: 14px; padding: 20px 22px 18px;
  box-shadow: 0 10px 34px rgba(4,120,140,.12); position: relative;
}
.brand-frame::before {
  content: ""; position: absolute; inset: 8px; pointer-events: none;
}
.brand-frame h3 { font-size: 18px; color: var(--c-main-deep); margin-bottom: 11px; letter-spacing: 1px; }
.brand-frame h3::after {
  content: "";
  display: block;
  width: 24px;
  height: 2px;
  margin-top: 8px;
  background: var(--c-main);
}
.brand-frame p { font-size: 14px; line-height: 1.9; color: var(--t-2); }
.brand-list { margin-top: 0; }
.brand-list li {
  position: relative; padding: 0 0 6px 14px; font-size: 0.8333vw; color: var(--t-2); line-height: 1.6;
}
.brand-list li::before {
  content: ""; position: absolute; left: 0; top: .7em; width: 5px; height: 5px;
  border-radius: 50%; background: var(--c-main);
}
.brand-frame--support { min-height: 189px; }

/* ───────── 首页·1369体系（设计稿1232px → 64.2vw） ───────── */
.mod-sys {
  position: relative; height: 64.13vw; max-height: 1232px; min-height: 700px;
  background: url("/site-design/assets/home/sys-bg-bg.png") center/100% 100% no-repeat;
  padding-top: var(--sys-mod-pt);
  overflow: hidden;
  /* 数字背景图 sys-bg.png 设计稿宽度 1663px（1663/1920 = 86.61458vw），原始尺寸 1663×684 */
  --sys-num-w: min(86.61458vw, 1663px);
  --sys-num-h: calc(var(--sys-num-w) * 684 / 1663);
  /* 纵向基准：数字背景图上边距 = 体系舞台顶边距，两者共用同一组数值 */
  --sys-mod-pt: 2.2vw;
  --sys-head-h: clamp(51.37255px, 6.82292vw, 131px);
  --sys-num-top: 15.625vw;
  /* 体系舞台宽度（设计稿 1152px = 72rem），供节点以数字背景图边缘为基准换算横向位置 */
  --sys-stage-w: min(72rem, calc(100vw - 40px));
  /* 圆环容器与人体地球图共用尺寸，默认与数字背景图等高 */
  --sys-globe-size: var(--sys-num-h);
}
.sys-number-bg {
  position: absolute; z-index: 0; top: var(--sys-num-top); left: 50%;
  display: block; width: var(--sys-num-w); height: auto; max-width: none;
  transform: translateX(-50%); pointer-events: none;
}
.mod-sys .sys-stage { width: var(--sys-stage-w); max-width: calc(100% - 40px); }
.sys-head { position: relative; z-index: 1; display: flex; justify-content: center; align-items: center; min-height: var(--sys-head-h); text-align: center; }
.sys-en {
  position: absolute; z-index: 0; top: 0; left: 50%; width: min(28.6979vw, 551px); height: auto;
  transform: translateX(-50%); pointer-events: none;
}
.sys-title {
  position: relative; z-index: 1; display: inline-flex; align-items: center; justify-content: center; gap: .04em; margin: 0;
  color: #04AABB; line-height: 1; white-space: nowrap;
}
.sys-title-copy {
  display: inline-block; font-family: "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(24px, 2.1vw, 40px); font-weight: 700; line-height: 1; transform: translateY(.15em);
}
.sys-title-number {
  display: inline-block; font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  /* 始终保持相对于 sys-title-copy 的 131 / 51 倍比例。 */
  font-size: clamp(51.37255px, 4.7395vw, 91px); font-weight: 400; line-height: .86;
}

@media (max-width: 540px) {
  .sys-head { min-height: var(--sys-head-h); }
  .sys-en { width: min(74vw, 400px); }
  .sys-title { gap: .02em; }
}

/* 顶边与 .sys-number-bg 对齐：数字背景图上边距 - 区块内边距 - 标题区高度 */
.sys-stage { position: relative; z-index: 1; width: var(--sys-stage-w); max-width: 90%; height: var(--sys-globe-size); margin: calc(var(--sys-num-top) - var(--sys-mod-pt) - var(--sys-head-h)) auto 0; }
.sys-rings { position: absolute; left: 50%; top: 50%; width: var(--sys-globe-size); height: var(--sys-globe-size); transform: translate(-50%, -50%); overflow: hidden; pointer-events: none; }
.sys-human-globe {
  /* 高度与 .sys-number-bg 保持一致；human-globe.gif 原始尺寸 710×710 为正方形，宽度同高即可保持比例 */
  position: absolute; left: 50%; top: 50%; display: block;
  height: var(--sys-globe-size); width: var(--sys-globe-size);
  max-width: none; transform: translate(-50%, -50%); mix-blend-mode: multiply;
  background-color: #fff;
  border-radius: 50%;
}

.sys-node {
  position: absolute; display: flex; align-items: center; gap: 0; width: 260px; min-width: 260px;
  padding: 0; color: var(--c-main-deep); text-align: left; transition: transform .3s, filter .3s; z-index: 5;
}
.sys-node:hover { transform: translateY(-4px); filter: drop-shadow(0 8px 10px rgba(4,120,140,.16)); }
.sys-node-copy { display: flex; flex-direction: column; gap: 2px; }
/* 字号按设计稿换算：b 42px（2.1875vw）、span 21px（1.09375vw） */
.sys-node b { color: var(--c-main); font-family: "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif; font-size: clamp(16px, 2.1875vw, 42px); line-height: 1; letter-spacing: 1px; }
.sys-node span { color: var(--t-3); font-family: Arial, sans-serif; font-size: clamp(9px, 1.09375vw, 21px); line-height: 1.25; white-space: nowrap; }
.sys-dot-gif { position: relative; z-index: 1; display: block; width: 34px; height: 34px; object-fit: contain; flex: none; transform: scale(4); }
/* 纵向：n1/n3 距舞台顶 164px、n2/n4 距舞台顶 495px，按 1920 设计稿占比换算 */
.sys-node.n1, .sys-node.n3 { top: min(8.54167vw, 164px); }
.sys-node.n2, .sys-node.n4 { top: min(25.78125vw, 495px); }
/* 横向：以数字背景图边缘为基准，n1/n2 左边距其左边 108px（5.625vw），n3/n4 右边距其右边 91px（4.73958vw）
   舞台与数字背景图均水平居中，故两者边缘差为 (舞台宽 - 背景图宽) / 2 */
/* 宽度由内部文案（.sys-node-copy）决定，避免英文副标题 nowrap 时溢出节点边框 */
.sys-node.n1, .sys-node.n2 { left: calc((var(--sys-stage-w) - var(--sys-num-w)) / 2 + min(5.625vw, 108px)); right: auto; width: max-content; min-width: 0; }
/* 横向：以圆环右边框为基准，n3 左边距其右边 60px（3.125vw），n4 左边与之相接（0） */
.sys-node.n3 { left: calc(50% + var(--sys-globe-size) / 2 + min(3.125vw, 60px)); right: auto; width: max-content; min-width: 0; }
.sys-node.n4 { left: calc(50% + var(--sys-globe-size) / 2); right: auto; width: max-content; min-width: 0; }
/* 圆点按设计稿定位：n1/n2 距节点左边 8.07vw、n3/n4 距节点右边 8.8vw，距顶均为 6px */
.sys-node.n1 .sys-dot-gif, .sys-node.n2 .sys-dot-gif { position: absolute; left: 8.07vw; top: 6px; }
.sys-node.n3 .sys-dot-gif, .sys-node.n4 .sys-dot-gif { position: absolute; right: 8.8vw; top: 6px; }
/* 右侧节点文案右对齐：标题与英文副标题均靠节点右边框 */
.sys-node.n3 .sys-node-copy, .sys-node.n4 .sys-node-copy { text-align: right; }
.sys-node.n1::after, .sys-node.n2::after, .sys-node.n3::after, .sys-node.n4::after {
  content: ''; position: absolute; top: 31%; height: 4px; z-index: -1; clip-path: polygon(0 0, 100% 42%, 100% 58%, 0 100%);
}
/* 连接线宽度按设计稿 221px / 1920 换算，最大不超过设计稿原始宽度 */
.sys-node.n1::after, .sys-node.n2::after { left: 8.69vw; right: auto; width: min(11.5104vw, 221px); background: linear-gradient(to right, rgba(4,169,188,.78), rgba(4,169,188,.18)); }
/* 右侧节点连接线：自左向右逐渐变粗，故左端收窄（42%~58%）、右端满高（0~100%），渐变同步为左浅右深 */
.sys-node.n3::after {
  left: -3.9vw; width: min(11.5104vw, 221px); clip-path: polygon(0 42%, 100% 0, 100% 100%, 0 58%);
  background: linear-gradient(to right, rgba(4,169,188,.18), rgba(4,169,188,.78));
}
.sys-node.n4::after {
  left: -0.5vw; width: min(11.5104vw, 221px); clip-path: polygon(0 42%, 100% 0, 100% 100%, 0 58%);
  background: linear-gradient(to right, rgba(4,169,188,.18), rgba(4,169,188,.78));
}
/* 设计稿：HarmonyOS Sans SC / 300 / 21px / #3B3B3B，字号按 1920 占比换算 */
.sys-intro {
  position: absolute; z-index: 1; text-align: center;
  font-family: "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif; font-weight: 300;
  font-size: clamp(12px, 1.09375vw, 21px); line-height: 2.05; color: #3B3B3B;
  left: 0; right: 0; bottom: 50px;
  width: 100%; max-width: 1060px !important; margin: 0 auto; padding-top: 8px;
}

/* ───────── 首页·专家团队（设计稿896px → 46.7vw） ───────── */
.mod-exp {
  height: 43.7vw; min-height: 560px;
  background: url("/site-design/assets/home/exp-bg.png") center/100% 100% no-repeat;
  padding-top: 3.1vw;
}
.exp-head { display: flex; justify-content: center; align-items: center; margin-bottom: 2.7vw; text-align: center; }
.exp-head .exp-en { display: none; }
.exp-title-img { display: block; width: min(52.8vw, 845px); height: auto; margin: 0 auto; }

.exp-grid { display: flex; justify-content: center; align-items: flex-start; gap: clamp(24px, 4.6vw, 88px); }
.exp-card {
  width: clamp(240px, 16.5vw, 316px); background: transparent; border-radius: 0; overflow: visible;
  position: relative; transition: transform .3s, filter .3s;
}
.exp-card:hover { transform: translateY(-8px); filter: drop-shadow(0 12px 16px rgba(4,100,120,.15)); z-index: 3; }
.exp-photo {
  height: clamp(330px, 25vw, 482px); display: flex; align-items: flex-end; justify-content: center;
  background: transparent; overflow: visible;
}
.exp-photo img {
  display: block; width: 100%; max-height: 100%; object-fit: contain;
  transform-origin: center bottom; transition: transform .4s ease;
}
.exp-photo:hover img, .exp-photo:focus-within img { transform: scale(1.08); }
.exp-info { padding: .6vw 0 0; text-align: center; }
.exp-info h3 { font-size: clamp(20px, 1.8vw, 30px); color: var(--c-main); letter-spacing: 2px; }
.exp-role { font-size: clamp(13px, 1.1vw, 17px); color: var(--t-2); line-height: 1.8; margin: .45vw 0 0; }
.exp-brief { display: none; }

/* ───────── 首页·荣誉资质（设计稿1237px → 64.4vw） ───────── */
.mod-honor {
  height: 64.427vw; min-height: 640px;
  background: url("/site-design/assets/home/honor-bg.png") center/100% auto no-repeat;
  padding-top: 4vw;
}
.honor-head { text-align: center; margin-bottom: 2.2vw; }
.honor-head .honor-en { display: block; margin: 0 auto; }
.honor-title { margin: -.65vw 0 0; color: #00a8bc; font-size: clamp(24px, 2.1vw, 40px); line-height: 1.1; font-weight: 700; letter-spacing: .04em; }
.honor-subtitle { margin: .38vw 0 0; color: #818181; font-size: clamp(12px, .9vw, 17px); line-height: 1.5; }
.honor-en { height: clamp(22px, 2.4vw, 42px); width: auto; }

.honor-grid { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 3vw; transform: translateY(4.7vw); }
.honor-item { cursor: zoom-in; position: relative; }
.honor-grid .honor-item:nth-child(n+4) { margin-top: min(1.88vw, 36px); }
.honor-item img { transition: transform .35s, filter .35s; }
.honor-item:hover img { transform: scale(1.05) translateY(-4px); filter: brightness(1.04); }
.honor-item::after {
  content: "🔍"; position: absolute; right: -6px; top: -6px; width: 30px; height: 30px; line-height: 30px;
  border-radius: 50%; background: var(--c-main); color: #fff; font-size: 14px; text-align: center;
  opacity: 0; transform: scale(.5); transition: all .3s;
}
.honor-item:hover::after { opacity: 1; transform: scale(1); }
.honor-grid .honor-item:nth-child(1) img { height: 17.5vw; max-height: 285px; }
.honor-grid .honor-item:nth-child(2) img,
.honor-grid .honor-item:nth-child(3) img { height: 17.6vw; max-height: 286px; }
.honor-grid .honor-item:nth-child(4) img,
.honor-grid .honor-item:nth-child(5) img,
.honor-grid .honor-item:nth-child(6) img { height: 18.8vw; max-height: 305px; }

/* ───────── 首页·新闻动态（设计稿1108px → 57.7vw）
   实测结构：标题区(News英文+最新动态) → 3卡片(白区464×394、间距38、网格x228-1694)
   → 白色长框(白区1472×289、内5行列表、行间#E8E8E8分隔线) → 了解更多按钮 ───────── */
.mod-news {
  background: url("/site-design/assets/home/news-bg.png") center/100% 100% no-repeat;
  padding: 2.9vw 0 2.9vw;
}
.news-head { --news-en-height: clamp(22px, 4.3vw, 83px); display: flex; flex-direction: column; align-items: center; text-align: center; margin-bottom: .5vw; }
.news-en { display: block; height: var(--news-en-height); width: auto; margin: 0 auto; }
.news-title {
  /* 设计稿：标题顶端距 news-en 顶端 47px（47/1920 = 2.4479vw）；
     news-en 已占据自身高度，故 margin-top = 目标间距 - news-en 高度 */
  margin-top: calc(min(2.2479vw, 47px) - var(--news-en-height));
  font-size: clamp(24px, 2.2vw, 42px); font-weight: 700;
  color: var(--c-main); letter-spacing: 4px; line-height: 1.35;
}

/* 首页新闻卡宽度与间隙（桌面 vw 基准，随视口自适应）；news-card / news-grid / news-list-wrap 同步引用保证宽度一致 */
.mod-news {
  --news-card-w: 24.1145vw;
  --news-card-gap: 1.9791vw;
  /* 三张卡片 + 两个间隙的总宽，news-grid 与 news-list-wrap 共用，保证左右边框严格对齐 */
  --news-row-w: calc(3 * var(--news-card-w) + 2 * var(--news-card-gap));
}

/* 3张新闻卡片：元素含投影 494×424（素材news-frame.png 白区464×394） */
.news-grid {
  display: flex; justify-content: center; gap: 0.42vw;
  margin-top: 1.3vw;
}
.news-card {
  flex: 0 0 25.73vw; max-width: 494px;
  aspect-ratio: 494 / 424;
  background: url("/site-design/assets/home/news-frame.png") center/100% 100% no-repeat;
  padding: 0.55vw 0.78vw 0;
  cursor: pointer; transition: transform .3s;
}
.news-card:hover { transform: translateY(-6px); }
.news-card .nc-img { height: 13.75vw; max-height: 264px; overflow: hidden; border-radius: 6px 6px 0 0; }
.news-card .nc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.news-card:hover .nc-img img { transform: scale(1.06); }
.news-card .nc-body { padding: 0.9vw 0.2vw 0; }
/* 设计稿：Arial / 400 / 16px（0.8333vw）/ #3B3B3B */
.nc-date { font-family: Arial, sans-serif; font-weight: 400; font-size: clamp(11px, 0.8333vw, 16px); color: #3B3B3B; display: block; margin-bottom: 0.3vw; }
.nc-cat { font-size: 12px; color: #fff; padding: 2px 10px; border-radius: 3px; }
.nc-cat.party { background: var(--c-red); }
.nc-cat.brand { background: var(--c-blue); }
.nc-cat.media { background: var(--c-green); }
/* 设计稿：HarmonyOS Sans SC / 500 / 21px（1.0937vw）/ #3B3B3B */
.news-card h3 {
  font-family: "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif; font-weight: 500;
  font-size: clamp(12px, 1.0937vw, 21px); line-height: 1.7; color: #3B3B3B;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  transition: color .25s;
}
.news-card:hover h3 { color: var(--c-main); }

/* 首页新闻卡片按设计稿重排：无内缩边框，图片铺满上半区，文字区保留左右留白。 */
@media (min-width: 768px) {
  .news-grid {
    gap: var(--news-card-gap);
    margin-top: 3.15vw;
  }
  .news-card {
    flex: 0 0 var(--news-card-w);
    width: var(--news-card-w);
    max-width: none;
    aspect-ratio: 399 / 338;
    padding: 0;
    overflow: hidden;
    background: #fff;
    border-radius: 0;
    box-shadow: 0 9px 22px rgba(22, 67, 82, .13);
  }
  .news-card .nc-img {
    height: auto;
    aspect-ratio: 464 / 264;
    max-height: none;
    border-radius: 0;
  }
  .news-card .nc-body {
    height: 33.1%;
    padding: 1.2vw 2.02vw 1vw;
  }
  .news-card .nc-date {
    margin-bottom: .38vw;
    line-height: 1.2;
  }
  .news-card h3 {
    font-size: clamp(14px, 1.1vw, 21px);
    line-height: 1.5;
    font-weight: 600;
  }
}

/* 白色新闻列表长框：素材 news-longframe.png 为 1502×319，可视白区仅 x∈[11,1483) y∈[11,299)（1472×288） */
.news-list-wrap {
  /* 宽度 = 上方 .news-grid 三张卡片总宽（共享 --news-row-w），实现左右边缘严格对齐 */
  width: var(--news-row-w); max-width: none; margin: 1vw auto 0;
  aspect-ratio: 1502 / 319;
  /* 素材四周灰边不对称（左11/右19/上11/下20）。若按整图 100% 铺满，白区会在盒内左缩7px、右缩12px并偏左上，
     看起来"边框比 padding 小"且左右与卡片不齐。故按白区尺寸放大（1502/1472、319/288），
     并用 11/30、11/31 的定位把白区四边精确贴到元素盒边缘 */
  background: url("/site-design/assets/home/news-longframe.png") 36.6667% 35.4839% / calc(100% * 1502 / 1472) calc(100% * 319 / 288) no-repeat;
  /* 上下 padding 与下方 .news-row 行高共同对应素材内的虚线位置（见 .news-row 注释） */
  padding: 1.1563vw 2.4vw 1.1517vw;
}
/* 设计稿：HarmonyOS Sans SC / 300 / 21px（1.0937vw）/ #3B3B3B，行内标题与日期统一继承 */
.news-row {
  /* 素材 news-longframe.png 白区 288px 内含 4 条虚线（行区 70/50/49/49/69），折算到元素盒后每行约 53.4px：
     行高 2.78vw（≈53.4px@1920）配合容器 padding-top 1.1563vw，使每行底边与素材虚线重合 */
  height: 2.78vw;
  /* 文字底部对齐并保留 0.35vw 间距，让文字贴近该行下方的虚线分割线 */
  display: flex; align-items: flex-end; justify-content: space-between; gap: 2vw;
  padding-bottom: 0.35vw;
  font-family: "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif; font-weight: 300;
  font-size: clamp(12px, 1.0937vw, 21px); color: #3B3B3B;
  border-bottom: 0; cursor: pointer;
}
.news-row:last-child { border-bottom: 0; }
.news-row .nr-title {
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: color .25s;
}
/* 标题前圆点：设计稿 #04AABB，直径 8px（0.4167vw） */
.news-row .nr-title::before {
  content: ''; display: inline-block; width: clamp(6px, 0.4167vw, 8px); height: clamp(6px, 0.4167vw, 8px);
  border-radius: 50%; background: #04AABB; margin-right: 0.42vw; vertical-align: middle;
}
.news-row:hover .nr-title { color: var(--c-main); }
.news-row .nr-date { flex: none; }

.news-more { text-align: center; margin-top: 2.2vw; }
.news-more img { height: 52px; width: auto; margin: 0 auto; transition: transform .3s; }
.news-more:hover img { transform: translateY(-3px); }

/* ───────── 过渡区（473px → 24.6vw） ───────── */
.transition { position: relative; height: 24.64vw; max-height: 473px; min-height: 0; overflow: hidden; }
.transition img { width: 100%; height: 100%; object-fit: cover; }
.transition-copy { position: absolute; left: 65.5%; top: 51%; transform: translate(-50%, -50%); display: flex; flex-direction: column; color: #fff; text-align: center; white-space: nowrap; }
/* 设计稿：strong = HarmonyOS Sans SC / bold / 75px（3.9062vw）；span = Arial / 400 / 21px（1.0937vw）且靠右 */
.transition-copy strong { font-family: "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif; font-weight: 700; font-size: 3.9062vw; line-height: 1.1; letter-spacing: 4px; }
.transition-copy span { margin-top: min(.52vw, 10px); font-family: Arial, sans-serif; font-weight: 400; font-size: 1.0937vw; letter-spacing: .3px; text-align: right; }

/* ───────── Footer（378px → 19.7vw） ───────── */
.footer {
  min-height: 20.15vw; background: #f4f5f6; color: #9a9b9d; position: relative;
}
.footer-inner { min-height: calc(20.15vw - 38px); display: grid; grid-template-columns: 360px minmax(0, 1fr) 118px; gap: clamp(28px, 4vw, 78px); align-items: start; padding-top: 2.15vw; }
.footer-left { min-width: 0; }
.footer-brand { width: 100%; }
.footer-brand img.fb-logo { width: min(100%, 320px); height: auto; margin: 0; }
.footer-nav { display: grid; grid-template-columns: repeat(5, minmax(72px, 1fr)); gap: clamp(18px, 2.5vw, 48px); padding-top: 4px; }
.fn-col h5 { font-size: clamp(13px, 1.08vw, 17px); color: #8a8b8e; font-weight: 600; margin: 0 0 21px; letter-spacing: 0; white-space: nowrap; }
.fn-col a { display: block; font-size: clamp(11px, .88vw, 14px); color: #aaa; padding: 0 0 13px; transition: color .2s, transform .2s; white-space: nowrap; }
.fn-col a:hover { color: var(--c-main); transform: translateX(3px); }
.footer-contact { display: grid; gap: 13px; margin-top: 28px; }
.fc-item { display: flex; gap: 8px; align-items: flex-start; margin: 0; }
.fc-item img { width: 16px; height: 16px; margin-top: 2px; opacity: .72; }
.fc-item p { margin: 0; font-size: clamp(11px, .86vw, 14px); color: #aaa; line-height: 1.8; }
.footer-qr { text-align: center; }
.footer-qr img { width: clamp(88px, 7.25vw, 117px); height: auto; margin: 0 auto 8px; transition: transform .3s; }
.footer-qr:hover img { transform: scale(1.06); }
.footer-qr p { margin: 0; font-size: clamp(11px, .82vw, 13px); color: #aaa; }
.footer-bottom {
  position: absolute; left: 0; right: 0; bottom: 0; height: 38px; border-top: 1px solid #d3d4d5;
  text-align: right; font-size: 11px; color: #b5b6b8; line-height: 38px;
}
.footer-bottom p { margin: 0; }

/* ═══════════════════ 关于我们页 ═══════════════════ */
/* 品牌介绍（设计稿1920×760：左栏x224-908 | 右栏两白框x1040-1764） */
.about-brand {
  position: relative;
  height: 39.6vw; min-height: 560px;
  background: url("/site-design/assets/about/brand-bg.png") center/100% 100% no-repeat;
}
/* 左栏：标题48px青色 + 段落20px/行距35px + 按钮 */
.ab-left {
  position: absolute; left: 11.67vw; top: 14.95vw;
  width: 35.6vw; max-width: 684px;
}
.ab-title {
  font-size: clamp(26px, 2.5vw, 48px); font-weight: 700;
  color: #03A9B5; letter-spacing: 0.1em; line-height: 1;
}
.ab-desc {
  margin-top: 2.55vw; font-size: clamp(13px, 1.04vw, 20px);
  line-height: 1.75; color: #59595B;
}
.ab-btn { display: inline-block; margin-top: 4.45vw; }
.ab-btn img { width: 6.3vw; max-width: 121px; height: auto; display: block; }
/* 右栏：两个半透明白框（724×262）纵向排列 */
.ab-right {
  position: absolute; left: 54.17vw; top: 7.3vw;
  width: 37.7vw; max-width: 724px;
}
.ab-frame {
  background: url("/site-design/assets/about/brand-frame1.png") center/100% 100% no-repeat;
  padding: 0.83vw 0.73vw 1.93vw 1.35vw;
}
.ab-frame + .ab-frame { margin-top: 1.67vw; }
.ab-sec-title {
  position: relative;
  font-size: clamp(16px, 1.35vw, 26px); font-weight: 700;
  color: #00AAB7; letter-spacing: 0.08em; line-height: 1;
}
.ab-sec-title::after {
  content: ""; position: absolute; top: calc(100% + .7vw); left: 0;
  width: min(1.46vw, 28px); height: 2px; background: #00AAB7;
}
.ab-list { margin-top: 1.1458vw; }
.ab-list li {
  position: relative; padding-left: 0.9vw;
  font-size: clamp(13px, 1.04vw, 20px); color: #616161;
  line-height: 1.75;
}
.ab-list li::before {
  content: ""; position: absolute; left: 0; top: 0.72em;
  width: 0.31vw; height: 0.31vw; min-width: 5px; min-height: 5px;
  background: #03A9B5; border-radius: 50%;
}

/* 发展历程（设计稿1920×2448：bg含蜿蜒道路插画；EN图y94/787×81 | 标题y151字48 | 副标题y234字28；
   12条目2025→2014降序左右两栏交错，年份字40青#00A0B0、正文20行距35、两端对齐；条目坐标vw） */
.about-dev {
  position: relative;
  height: 127.5vw;
  background: url("/site-design/assets/about/dev-bg.png") center/100% 100% no-repeat;
}
.dev-en {
  position: absolute; top: 4.9vw; left: calc(50% - 20.5vw);
  width: 40.99vw; height: auto; display: block;
}
.dev-title {
  position: absolute; top: 7.86vw; left: 0; right: 0;
  text-align: center; font-size: 2.5vw; font-weight: 700;
  color: #00A0B0; letter-spacing: 0.05em; line-height: 1;
}
.dev-sub {
  position: absolute; top: 12.19vw; left: 0; right: 0;
  text-align: center; font-size: 1.458vw; color: #606070; line-height: 1;
}
.dev-list { position: absolute; inset: 0; }
.dev-item {
  position: absolute; left: var(--dx); top: var(--dy); width: var(--dw);
}
.dev-year {
  font-size: 1.8vw; font-weight: 700; color: #00A0B0;
  line-height: 1; letter-spacing: 0.02em;
}
.dev-text {
  margin-top: 1.563vw; font-size: 0.85vw; line-height: 1.823vw;
  color: #59595B; text-align: justify;
}

/* 荣誉资质（1206px → 62.8vw） */
.about-honor {
  height: 50.8vw; min-height: 620px;
  background: url("/site-design/assets/about/honor-bg.png") center/100% 100% no-repeat;
  padding-top: 3vw;
}
.about-honor-head { position: relative; display: flex; flex-direction: column; align-items: center; text-align: center; margin-bottom: 0; }
.about-honor-head .honor-en { height: clamp(42px, 4.4vw, 84px); opacity: 1; margin: 0 auto -1.55vw; }
.about-honor-title { position: relative; margin: 0; color: #00a8bc; font-size: clamp(24px, 2.25vw, 43px); line-height: 1.2; font-weight: 700; letter-spacing: .04em; }
.about-honor-subtitle { margin: .55vw 0 0; color: #777; font-size: clamp(13px, 1vw, 19px); line-height: 1.5; }
.honor-carousel { width: min(1000px, 92%); margin: 4.2vw auto 0; display: flex; align-items: center; justify-content: center; gap: clamp(22px, 3vw, 55px); }
.hc-window { flex: 0 0 min(450px, 70vw); width: min(450px, 70vw); overflow: hidden; }
.hc-track { display: flex; width: 100%; gap: 0; transition: transform .6s ease; }
.hc-item { flex: 0 0 100%; width: 100%; text-align: center; position: relative; padding-top: clamp(8px, 0.8333vw, 16px); }
.hc-item:hover { z-index: 10; }
/* 背景虚影：元素后方一层模糊色块，营造柔和投影感 */
.hc-item::before {
  content: ""; position: absolute; z-index: -1; inset: 6% 10% 14%;
  border-radius: min(0.73vw, 14px); background: rgba(220, 220, 220, .32);
  pointer-events: none;
}
/* 证书卡片：width:auto 使投影紧贴证书内容；max-width 预留放大余量，避免 scale(1.06) 后超出 450px 窗口被裁切
   box-shadow 用两层（紧贴接触影 + 大范围虚影）营造落于背景上的 3D 立体感 */
.hc-item img {
  height: min(24vw, 460px); max-height: 460px; width: auto;
  max-width: calc(100% - 28px);
  margin: 0 auto 1vw; border-radius: 6px;
  transition: transform .35s ease;
}
.hc-item:hover img { transform: scale(1.06); }
.hc-item p { margin: 0 auto; color: #00a8bc; font-size: clamp(18px, 1.55vw, 30px); font-weight: 600; line-height: 1.45; }
.hc-arrow img { width: min(4vw, 62px); height: auto; transition: transform .25s, opacity .25s; opacity: .8; }
.hc-arrow:hover img { transform: scale(1.1); opacity: 1; }
.hc-arrow[disabled] img { opacity: .25; cursor: default; }

/* ═══════════════════ 健康管理页 ═══════════════════ */
/* 健康理念（1129px → 58.8vw） */
.health-concept {
  height: 43.8vw; min-height: 620px;
  background: url("/site-design/assets/health/concept-bg.png") center/100% 100% no-repeat;
  display: flex; align-items: center;
}
.concept-grid { display: flex; }
.concept-left { flex: 1; max-width: 900px; }
.concept-en { height: clamp(22px, 2.5vw, 42px); width: auto; margin-bottom: 8px; }
.concept-left .mod-title { margin-bottom: 1.4vw; }
.concept-desc {
  font-size: 14px; line-height: 2.1; color: var(--t-2); text-align: justify; margin-bottom: 12px;
  background: rgba(255,255,255,.55); border-radius: 8px; padding: 14px 18px;
}

/* 管理体系（bg 931px + 卡片区 → 总高约96vw） */
.health-mgmt {
  background: url("/site-design/assets/health/mgmt-bg.png") center top/100% auto no-repeat;
  padding: 3.4vw 0 4vw;
}
.mgmt-head { text-align: center; margin-bottom: 2vw; }
.mgmt-en { height: clamp(22px, 2.5vw, 44px); width: auto; }
.mgmt-cards { display: flex; justify-content: center; gap: 1.6vw; }
.flip-card { flex: 0 0 276px; height: 530px; }
.flip-inner { position: relative; width: 100%; height: 100%; }
.flip-front, .flip-back { position: absolute; inset: 0; border-radius: 14px; overflow: hidden; }
.flip-front { opacity: 1; transition: opacity .22s ease; }
.flip-front img { width: 100%; height: 100%; }
.flip-back { opacity: 0; pointer-events: none; background: linear-gradient(160deg, #06B3C6 0%, #048FA6 60%, #037A90 100%); transition: opacity .22s ease; }
.flip-card:hover .flip-front { opacity: 0; }
.flip-card:hover .flip-back { opacity: 1; pointer-events: auto; }
@media (hover: none) {
  .flip-front { opacity: 0; }
  .flip-back { opacity: 1; pointer-events: auto; }
}
.fb-color { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .18; }
.fb-body { position: relative; z-index: 2; height: 100%; display: flex; flex-direction: column; align-items: center; padding: 34px 22px; color: #fff; }
.fb-img { width: 78%; max-height: 200px; object-fit: contain; margin-bottom: 14px; }
.fb-icon { width: 52px; height: auto; margin-bottom: 12px; }
.fb-body h4 { font-size: 21px; letter-spacing: 3px; margin-bottom: 12px; }
.fb-body p { font-size: 13.5px; line-height: 1.95; text-align: center; opacity: .95; }
.mgmt-note { text-align: center; margin-top: 2.4vw; font-size: 14.5px; color: var(--t-2); line-height: 1.9; }
.mgmt-note .hint { display: block; font-size: 12px; color: var(--t-3); margin-top: 6px; }

/* 九科协同（1189px → 61.9vw） */
.health-collab {
  height: 61.9vw; min-height: 640px;
  background: url("/site-design/assets/health/collab-bg.png") center/100% 100% no-repeat;
  padding-top: 3vw;
}
.collab-head { text-align: center; margin-bottom: 2vw; }
.collab-en { height: clamp(22px, 2.6vw, 46px); width: auto; }
.collab-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4vw; }
.collab-item {
  background: rgba(255,255,255,.92); border-radius: 12px; padding: 20px 18px;
  display: flex; align-items: center; gap: 16px;
  box-shadow: 0 6px 20px rgba(4,110,130,.10); transition: transform .3s, box-shadow .3s;
}
.collab-item:hover { transform: translateY(-6px); box-shadow: 0 14px 30px rgba(4,110,130,.18); }
.collab-item .ci {
  flex: 0 0 62px; height: 62px; border-radius: 50%;
  background: linear-gradient(150deg, var(--c-main), #038AA0);
  color: #fff; font-size: 15px; font-style: normal; display: flex; align-items: center; justify-content: center;
  letter-spacing: 1px; box-shadow: 0 6px 14px rgba(4,140,160,.35);
}
.collab-item h4 { font-size: 16.5px; color: var(--t-1); margin-bottom: 4px; }
.collab-item p { font-size: 12.5px; color: var(--t-3); }
.collab-note { margin-top: 2vw; font-size: 13.5px; line-height: 2; color: var(--t-2); text-align: center; }

/* 专家智库（整幅轮播 1199px/张） */
.health-expert { padding: 3vw 0 2vw; }
.expert-head { text-align: center; margin-bottom: 1.6vw; }
.expert-title-img { height: clamp(24px, 2.8vw, 50px); width: auto; }
.expert-carousel { position: relative; }
.ec-window { overflow: hidden; }
.ec-track { display: flex; transition: transform .7s ease; }
.ec-slide { flex: 0 0 100%; }
.ec-slide img { width: 100%; }
.ec-arrow { position: absolute; top: 50%; transform: translateY(-50%); z-index: 5; }
.ec-arrow img { width: 56px; height: 88px; opacity: .8; transition: opacity .25s, transform .25s; }
.ec-arrow:hover img { opacity: 1; transform: scale(1.08); }
.ec-prev { left: 2vw; }
.ec-next { right: 2vw; }
.ec-dots { position: absolute; bottom: 18px; left: 0; right: 0; display: flex; justify-content: center; gap: 10px; z-index: 5; }
.ec-dots i { width: 11px; height: 11px; border-radius: 6px; background: rgba(255,255,255,.6); cursor: pointer; transition: all .3s; }
.ec-dots i.on { width: 30px; background: #fff; }

/* 糖友反馈（1384px → 72vw） */
.health-feedback {
  height: 72vw; min-height: 700px;
  background: url("/site-design/assets/health/feedback-bg.png") center/100% 100% no-repeat;
  padding-top: 3vw;
}
.feedback-head { text-align: center; margin-bottom: 2vw; }
.feedback-title-img { height: clamp(24px, 2.8vw, 50px); width: auto; }
.feedback-video { position: relative; }
.video-frame { position: relative; width: 900px; max-width: 92%; margin: 0 auto; }
.video-frame .vf-bg { width: 100%; }
.vf-body {
  position: absolute; inset: 6% 9%;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 18px;
  background: rgba(3,70,88,.30); border-radius: 10px;
}
.vf-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; background: #000; }
.vf-body.is-playing .vf-cover,
.vf-body.is-playing .vf-play,
.vf-body.is-playing .vf-tip { opacity: 0; pointer-events: none; }
.vf-play {
  width: 84px; height: 84px; border-radius: 50%;
  background: rgba(255,255,255,.94) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2304A9BC'%3E%3Cpath d='M8 5v14l11-7z'/%3E%3C/svg%3E") center/38% no-repeat;
  box-shadow: 0 0 0 12px rgba(255,255,255,.22), 0 10px 30px rgba(0,40,55,.4);
  transition: transform .3s;
}
.vf-play:hover { transform: scale(1.08); }
.vf-tip { color: rgba(255,255,255,.92); font-size: 14px; letter-spacing: 2px; }
.fb-prev, .fb-next { position: absolute; top: 50%; transform: translateY(-50%); z-index: 5; }
.fb-prev { left: -1vw; }
.fb-next { right: -1vw; }

/* ═══════════════════ 科研创新页 ═══════════════════ */
.rs-head { text-align: center; }
.rs-title-img { display: block; width: auto; height: auto; }

/* 数智化平台（1920 x 2270 原稿） */
.rs-digi {
  height: 99.23vw; max-height: 2270px; min-height: 0;
  padding: 5.7vw 0 0; overflow: hidden; background: #fff;
}
.rs-digi .rs-head {
  position: relative; width: 100%; max-width: none; height: 12.49vw; max-height: 451px;
  margin: 0; padding: 0;
}
.rs-digi .rs-title-img {
  position: absolute; top: 1vw; left: 50%; width: min(43.8vw, 841px);
  transform: translateX(-50%); opacity: 1;
}
.rs-digi .rs-head h2 {
  position: absolute; top: 5.15vw; left: 0; right: 0; margin: 0;
  color: #04a9bc; font-size: min(1.46vw, 28px); font-weight: 600; line-height: 1.2; letter-spacing: 0;
}
.rs-digi .rs-head p {
  position: absolute; top: 8.93vw; left: 0; right: 0; margin: 0;
  color: #777; font-size: min(.78vw, 15px); line-height: 1.4; letter-spacing: 0;
}
.digi-grid {
  display: flex; justify-content: center; gap: min(1.3021vw, 25px);
  width: min(90.8854vw, 1745px); max-width: none; margin: 0 auto; padding: 0;
}
.digi-grid.second { gap: min(1.875vw, 36px); width: min(90.8854vw, 1745px); margin-top: min(2.6042vw, 50px); }
.digi-card { position: relative; overflow: hidden; text-align: center; background: #fff; }
.digi-card.v { flex: 0 0 min(24.6354vw, 473px); width: min(24.6354vw, 473px); aspect-ratio: 473 / 764; }
.digi-card.h { flex: 0 0 min(44.5313vw, 855px); width: min(44.5313vw, 855px); aspect-ratio: 855 / 743; }
.digi-grid.second .digi-card.h:nth-child(2) { flex-basis: min(44.4792vw, 854px); width: min(44.4792vw, 854px); aspect-ratio: 854 / 743; }
.digi-card::before {
  content: ""; position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background: center / 100% 100% no-repeat;
}
.digi-card.v::before { background-image: url("/site-design/assets/research/digi-frame-a.png"); }
.digi-card.h::before { background-image: url("/site-design/assets/research/digi-frame-c.png"); }
.digi-img { width: 100%; height: 71.47%; }
.digi-card.h .digi-img { height: 71.2%; }
.digi-img img { width: 100%; object-fit: cover; }
/* 竖向卡片：图片下边框与 .digi-label 上边框间距 1.562vw
   图片区高度 = 卡片高度 - 标签高度 7.9166vw - 间距 1.562vw */
.digi-card.v .digi-img { height: calc(100% - 7.9166vw - 1.562vw); }
.digi-card.v .digi-img img { height: 100%; }
/* 第二行（两张横向卡片）：容器宽 37.5vw，卡片在容器内等比平分；
   标签高 7.8645vw，图片下边框与标签上边框间距 1.5625vw（图片高度随卡片等比缩放） */
@media (min-width: 768px) {
  .container.digi-grid.second { width: auto; }
  .container.digi-grid.second .digi-card.h:nth-child(n) { flex: 0 0 37.5vw; width: 37.5vw; }
  .container.digi-grid.second .digi-label { height: 7.8645vw; }
  .container.digi-grid.second .digi-img { height: calc(100% - 7.8645vw - 1.5625vw); }
  .container.digi-grid.second .digi-img img { height: 100%; }
}
.digi-label {
  position: absolute; right: 0; bottom: 0; left: 0; height: 7.9166vw;
  z-index: 3;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: #fff; background: url("/site-design/assets/research/digi-frame-b.png") center / 100% 100% no-repeat;
}
.digi-card.h .digi-label { height: 24.23%; background-image: url("/site-design/assets/research/digi-frame-d.png"); }
.digi-label h4 { position: relative; z-index: 3; margin: 0; color: #fff; font-size: min(1.6667vw, 32px); font-weight: 500; line-height: 1.2; letter-spacing: .04em; }
.digi-label p { position: relative; z-index: 3; margin: .35vw 0 0; color: #fff; font-family: Arial, sans-serif; font-size: min(1.0417vw, 20px); line-height: 1.2; letter-spacing: .09em; }

/* 专利创新（1920 x 1587 原稿） */
.rs-patent {
  height: 82.66vw; max-height: 1587px; min-height: 0; position: relative;
  overflow: hidden; padding: 0;
  background: url("/site-design/assets/research/patent-bg.png") center/100% 100% no-repeat;
}
.rs-patent .rs-head {
  position: absolute; top: 7.2vw; left: 11.75vw; width: min(22.34vw, 429px); height: min(8vw, 154px); margin: 0; text-align: left;
}
.rs-patent .rs-title-img { display: block; width: 100%; height: auto; margin: 0; }
.rs-patent .rs-head h2 {
  position: absolute; top: 5.65vw; left: 0; margin: 0;
  color: #04a9bc; font-size: min(2.08vw, 40px); font-weight: 600; line-height: 1.1; letter-spacing: 0;
}
.patent-desc {
  position: absolute; top: 30.2vw; left: 11.75vw; width: min(16.15vw, 310px); margin: 0;
  color: #777; font-size: min(.78vw, 15px); line-height: 1.85; text-align: justify; letter-spacing: 0;
}

/* 科技创新（1920 x 1154 原稿） */
.rs-tech {
  height: 60.1vw; max-height: 1154px; min-height: 0; position: relative;
  background: url("/site-design/assets/research/tech-bg.png") center/100% 100% no-repeat;
  padding: 0; overflow: hidden;
}
.rs-tech .rs-head { position: absolute; top: 9.79vw; left: 11.77vw; width: min(39.38vw, 756px); height: min(5.37vw, 103px); margin: 0; }
.rs-tech .rs-title-img { width: 100%; opacity: .58; }
.rs-tech .rs-head h2 { position: absolute; top: 4.78vw; left: 0; margin: 0; color: #046cab; font-size: min(2.35vw, 45px); font-weight: 600; line-height: 1.1; letter-spacing: 0; }
.tech-desc {
  position: absolute; top: 22.6vw; left: 11.98vw; width: min(22.4vw, 430px); margin: 0;
  color: #777; font-size: min(.89vw, 17px); line-height: 2; text-align: justify; letter-spacing: 0;
}

/* 精准检测（1920 x 2330 原稿） */
.rs-test {
  height: 121.35vw; max-height: 2330px; min-height: 0; position: relative;
  background: url("/site-design/assets/research/test-bg.png") center/100% 100% no-repeat;
  padding: 0; overflow: hidden;
}
.rs-test .rs-head { position: absolute; top: 8.02vw; left: 11.98vw; width: min(24.22vw, 465px); height: min(5.37vw, 103px); margin: 0; }
.rs-test .rs-title-img { width: 100%; opacity: .8; }
.rs-test .rs-head h2 { position: absolute; top: 4.61vw; left: 0; margin: 0; color: #04a9bc; font-size: min(1.98vw, 38px); font-weight: 600; line-height: 1.1; letter-spacing: 0; }
.test-intro {
  position: absolute; top: 21.56vw; left: 40.31vw; width: min(30.2vw, 580px); margin: 0;
  color: #777; font-size: min(.73vw, 14px); line-height: 1.8; text-align: justify; letter-spacing: 0;
}
.test-photos { position: absolute; top: 28.13vw; left: 33.33vw; width: min(57.08vw, 1096px); height: min(42.55vw, 817px); }
.test-photos { isolation: isolate; }
/* .test-photos::before,
.test-photos::after {
  content: ""; position: absolute; z-index: 0;
  border-radius: min(1.04vw, 20px); background: rgba(255,255,255,.78); box-shadow: 0 16px 30px rgba(111,167,184,.10);
}
.test-photos::before { top: 15%; left: 4%; width: 8.47%; height: 70%; }
.test-photos::after { top: 25%; left: 1%; width: 8.97%; height: 50%; background: rgba(255,255,255,.54); } */
.tp-window { position: relative; z-index: 1; height: 100%; overflow: hidden; }
.tp-track { display: flex; height: 100%; transition: transform .65s ease; }
.tp-slide { flex: 0 0 100%; height: 100%; }
.tp-slide img { width: 100%; height: 100%; object-fit: cover; }
.test-pagination {
  position: absolute; z-index: 2; top: 16.5%; left: calc(100% - min(1.25vw, 24px));
  display: flex; flex-direction: column; align-items: center; gap: min(3.39vw, 65px); overflow: hidden;
  width: min(3.33vw, 64px); padding: 0; border-radius: 999px;
  background: rgba(255,255,255,.96); box-shadow: 0 16px 30px rgba(111,167,184,.16);
}
.test-pagination button {
  width: min(3.33vw, 64px); height: min(3.33vw, 64px); border-radius: 50%; color: #888;
  background: transparent; font-size: min(.73vw, 14px); line-height: 1; transition: color .25s, background .25s;
}
.test-pagination button.on { color: #fff; background: #04a9bc; box-shadow: 0 7px 18px rgba(4,169,188,.25); }
.test-service-img { position: absolute; top: 72.2vw; left: 8.5vw; width: min(26.72vw, 513px); }
.test-service-copy { position: absolute; top: 78.7vw; left: 36.8vw; }
.test-service-copy h3 { margin: 0; color: #444; font-size: min(2.08vw, 40px); font-weight: 500; line-height: 1.1; letter-spacing: 0; }
.test-service-copy p { margin: .35vw 0 0; color: #777; font-family: Arial, sans-serif; font-size: min(1.04vw, 20px); line-height: 1.1; letter-spacing: .08em; }
.test-service-visual { position: absolute; z-index: 0; top: 68.9vw; left: 0; width: 100%; height: 43vw; pointer-events: none; }
.test-service-ball { position: absolute; top: 0; left: 53.3vw; width: min(38.3vw, 735px); height: auto; }
.test-service-person { position: absolute; top: 6.4vw; left: 59.2vw; width: min(27vw, 519px); height: auto; }
.test-service-line { position: absolute; z-index: 1; top: 93.5vw; left: 32.3vw; width: min(18vw, 345px); height: auto; opacity: .72; }
.test-service-microscope { position: absolute; z-index: 2; top: 91.4vw; left: 36vw; width: min(2.55vw, 49px); height: auto; opacity: .72; }
.test-phone { position: absolute; top: 91.1vw; left: 50.65vw; display: flex; flex-direction: column; align-items: center; color: #444; }
.test-phone strong { font-family: Arial, sans-serif; font-size: min(1.98vw, 38px); line-height: 1.1; letter-spacing: .02em; }
.test-phone span { margin-top: .35vw; color: #999; font-size: min(.78vw, 15px); line-height: 1.1; }
.test-action {
  position: absolute; z-index: 3; top: 98.4vw; left: 36.45vw; width: min(12.75vw, 244px); height: min(3.65vw, 70px);
  display: flex; align-items: center; justify-content: center; gap: min(3vw, 58px); border-radius: 999px;
  color: #fff; background: url("/site-design/assets/research/test-service-button.png") center/100% 100% no-repeat; font-size: min(1.04vw, 20px); line-height: 1; transition: filter .2s, transform .2s;
}
.test-action:hover { filter: brightness(.96); transform: translateY(-2px); }
.test-action-label, .test-action-arrow { display: inline-flex; align-items: center; line-height: 1; transform: translateY(-.57em); }
.test-action-arrow { font-size: min(1.67vw, 32px); transform: translateY(-.49em); }
.test-footnote { position: absolute; top: 108.65vw; left: 11.8vw; width: min(76.4vw, 1467px); margin: 0; color: #999; font-size: min(1.04vw, 20px); line-height: 1.65; text-align: justify; }

/* 战略合作（1920 x 1429 原稿） */
.rs-coop {
  height: 74.43vw; max-height: 1429px; min-height: 0; position: relative;
  background: url("/site-design/assets/research/coop-bg.png") center/100% 100% no-repeat;
  padding: 0; overflow: hidden;
}
.rs-coop .rs-head { position: absolute; top: 8vw; left: 0; width: 100%; height: min(5.32vw, 102px); margin: 0; }
.rs-coop .rs-title-img { position: absolute; top: 0; left: 50%; width: min(35.05vw, 673px); transform: translateX(-50%); opacity: 1; }
.rs-coop .rs-head h2 { position: absolute; top: 3.55vw; left: 0; right: 0; margin: 0; color: #04a9bc; font-size: min(2.7vw, 52px); font-weight: 600; line-height: 1.1; letter-spacing: 0; }
.coop-carousel {
  --coop-main-width: min(59.53vw, 1143px);
  --coop-main-half: min(29.765vw, 571.5px);
  --coop-side-1-width: min(47.4vw, 910px);
  --coop-side-2-width: min(39.58vw, 760px);
  --coop-side-1-exposure: min(5.21vw, 100px);
  --coop-side-2-exposure: min(10.42vw, 200px);
  position: absolute; top: 17.24vw; left: 0; right: 0; height: min(43.49vw, 835px);
}
.coop-track { position: relative; width: 100%; height: 100%; transform: translateX(calc(-1 * var(--coop-track-shift))); }
.coop-slide {
  position: absolute; top: 0; left: 50%; width: min(53.49vw, 1027px); opacity: 0; pointer-events: none;
  border-radius: min(1.15vw, 22px); overflow: hidden;
  transform-origin: center center;
  transition: transform .55s ease, opacity .45s ease, filter .45s ease; filter: none; z-index: 1;
  /* 边框虚影：紧贴轮廓的接触影 + 大范围柔和虚影，使图片卡片从背景浮起呈 3D 立体感 */
  box-shadow:
    0 min(.21vw, 4px) min(.68vw, 13px) rgba(4, 36, 46, .22),
    0 min(1.25vw, 24px) min(2.86vw, 55px) calc(-1 * min(.42vw, 8px)) rgba(4, 36, 46, .3);
}
.coop-slide img { position: relative; z-index: 1; display: block; width: 100%; height: auto; box-shadow: none; }
.coop-slide.pos-center.active::after {
  content: ""; position: absolute; z-index: 2; right: 0; bottom: 0; left: 0;
  height: clamp(6px, .63vw, 12px); background: #04a9bc;
}
.coop-slide.pos-center { top: 0; left: 50%; width: var(--coop-main-width); opacity: 1; pointer-events: auto; transform: translateX(-50%); z-index: 5; }
.coop-slide.pos-left-1, .coop-slide.pos-right-1 { top: min(5.1vw, 98px); width: var(--coop-side-1-width); opacity: .95; z-index: 4; }
.coop-slide.pos-left-2, .coop-slide.pos-right-2 { top: min(7.92vw, 152px); width: var(--coop-side-2-width); opacity: .84; z-index: 3; }
.coop-slide.pos-left-1 { transform: perspective(1800px) rotateY(12deg); transform-origin: center center; }
.coop-slide.pos-left-2 { transform: perspective(1800px) rotateY(18deg); transform-origin: center center; }
.coop-slide.pos-right-1 { transform: perspective(1800px) rotateY(-12deg); transform-origin: center center; }
.coop-slide.pos-right-2 { transform: perspective(1800px) rotateY(-18deg); transform-origin: center center; }
.coop-slide.pos-left-1 { left: calc(50% - var(--coop-main-half) - var(--coop-side-1-exposure)); }
.coop-slide.pos-left-2 { left: calc(50% - var(--coop-main-half) - var(--coop-side-2-exposure)); }
.coop-slide.pos-right-1 { left: calc(50% + var(--coop-main-half) + var(--coop-side-1-exposure) - var(--coop-side-1-width)); }
.coop-slide.pos-right-2 { left: calc(50% + var(--coop-main-half) + var(--coop-side-2-exposure) - var(--coop-side-2-width)); }
.coop-slide.is-hidden { opacity: 0; pointer-events: none; transform: translateX(-50%) scale(.9); z-index: 1; }
.coop-arrow { position: absolute; top: calc(100% + min(4vw, 77px)); z-index: 5; width: min(3.28vw, 63px); height: min(3.28vw, 63px); border-radius: 50%; overflow: hidden; }
.coop-arrow img { width: 100%; height: 100%; transition: transform .2s; }
.coop-arrow:hover img { transform: scale(1.06); }
.coop-prev { left: calc(50% - min(4vw, 50.5px)); }
.coop-next { left: calc(50% + min(.84vw, 16px)); }
.coop-dots { display: none; }
.coop-dots button { width: min(.57vw, 11px); height: min(.57vw, 11px); border-radius: 50%; background: rgba(4,169,188,.28); transition: background .2s, transform .2s; }
.coop-dots button.on { background: #04a9bc; transform: scale(1.25); }

/* 产品系列（桌面端适度缩放：3列×4行居中，保留产品图与名称条比例） */
.rs-product { padding: 4.92vw 0 7.34vw; background: #fff; }
.rs-product .rs-head { position: relative; height: min(8.3vw, 159px); width: 100%; max-width: none; margin: 0; padding: 0; }
.rs-product .rs-title-img { position: absolute; top: 0; left: 50%; width: min(27.5vw, 528px); transform: translateX(-50%); opacity: 1; }
.rs-product .rs-head::after { content: "产品系列"; position: absolute; top: 3.8vw; left: 0; right: 0; color: #04a9bc; font-size: min(1.56vw, 30px); font-weight: 600; line-height: 1.1; text-align: center; }
.product-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: min(1vw, 19px) min(.86vw, 17px); width: min(66.24vw, 1271px); max-width: 92%; margin: 0 auto;
}
.product-item { position: relative; overflow: hidden; transition: transform .3s; }
.product-item:hover { transform: translateY(-6px); }
.product-item img.pi-img { width: 100%; display: block; transition: transform .35s ease; }
.product-item .pi-name {
  position: absolute; left: 0; right: 0; bottom: 0; height: 20.25%;
  display: flex; align-items: center; justify-content: center;
  background: url("/site-design/assets/research/product-name-frame.png") center/100% 100% no-repeat, #04AABB;
  color: #fff; font-size: min(1.15vw, 22px); font-weight: 500; letter-spacing: 0;
  opacity: 0; pointer-events: none; transform: translateY(100%); transition: opacity .28s ease, transform .28s ease;
}
.product-item:hover img.pi-img { transform: scale(1.035); }
.product-item:hover .pi-name,
.product-item:focus-within .pi-name { opacity: 1; transform: translateY(0); }

@media (hover: none), (pointer: coarse) {
  .product-item .pi-name { opacity: 1; transform: translateY(0); }
}

/* ═══════════════════ 最新动态页 ═══════════════════ */
.news-page { padding: 5.99vw 0 5.2vw; background: #fff; }
.news-page-inner {
  width: min(76.46vw, 1468px); max-width: calc(100% - 40px); margin: 0 auto;
  display: grid; grid-template-columns: min(8.34vw, 160px) minmax(0, 1fr); gap: min(6.77vw, 130px); align-items: start;
}
.news-tabs { display: flex; flex-direction: column; align-items: stretch; padding: min(.94vw, 18px) min(.63vw, 12px); background: #eefbfd; }
.news-tab {
  position: relative; min-height: min(2.3vw, 44px); padding: 0 min(.42vw, 8px); border-radius: 0; color: #777;
  background: transparent; font-size: min(.73vw, 14px); line-height: 1; text-align: left; letter-spacing: 0; transition: color .25s, background .25s;
}
.news-tab::after { content: ">"; position: absolute; right: min(.42vw, 8px); top: 50%; transform: translateY(-50%); opacity: 0; }
.news-tab:hover { color: var(--c-main); }
.news-tab.active { color: #04a9bc; font-weight: 600; background: rgba(255,255,255,.72); }
.news-tab.active::before { content: ""; position: absolute; top: 0; bottom: 0; left: 0; width: 2px; background: #04a9bc; }
.news-tab.active::after { opacity: 1; }
.news-content { min-width: 0; }
.news-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: min(2.08vw, 40px) min(1.88vw, 36px); }
.news-item {
  position: relative; aspect-ratio: 1.6 / 1; overflow: hidden; background: #e8f1f2; cursor: pointer; transition: transform .3s;
}
.news-item:hover { transform: translateY(-4px); }
.news-item .ni-img { position: absolute; inset: 0; overflow: hidden; }
.news-item .ni-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.news-item:hover .ni-img img { transform: scale(1.04); }
.news-item .ni-body { position: absolute; inset: 0; display: flex; align-items: flex-end; padding: min(1.25vw, 24px); background: linear-gradient(transparent 36%, rgba(0,0,0,.7) 100%); }
.news-item h3 {
  margin: 0; color: #fff; font-size: min(1.04vw, 20px); line-height: 1.6; font-weight: 500; text-align: left;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; text-shadow: 0 1px 2px rgba(0,0,0,.25);
}
.news-item:hover h3 { color: #fff; }
.news-item .ni-brief, .news-item .ni-meta { display: none; }
.news-item.hide { display: none; }
.news-loadmore {
  width: 100%; height: min(2.81vw, 54px); margin: min(2.6vw, 50px) 0 0; cursor: pointer;
  display: flex; align-items: center; justify-content: center; background: #eefbfd;
}
.news-loadmore span {
  position: static; color: #888; font-size: min(.73vw, 14px); letter-spacing: .05em;
}
.news-loadmore span::after { content: "⌄"; margin-left: min(1.04vw, 20px); font-size: 1.2em; }
.news-loadmore:hover span { color: var(--c-main); }
.news-loadmore.done span { color: var(--t-3); }
.news-empty { grid-column: 1/-1; text-align: center; color: var(--t-3); padding: 60px 0; font-size: 14px; }

/* 新闻详情 */
.news-detail { padding: 3.4vw 0 4.5vw; }
.nd-body { max-width: 900px; }
.nd-back { display: inline-block; margin-bottom: 24px; font-size: 14px; color: var(--t-3); transition: color .2s; }
.nd-back:hover { color: var(--c-main); }
.nd-title { font-size: clamp(20px, 2vw, 30px); line-height: 1.6; color: var(--t-1); margin-bottom: 16px; }
.nd-meta { display: flex; gap: 18px; padding-bottom: 20px; border-bottom: 1px solid #E5EAEE; margin-bottom: 26px; font-size: 13px; color: var(--t-3); }
.nd-content p { font-size: 15px; line-height: 2.2; color: var(--t-2); margin-bottom: 18px; text-align: justify; }
.nd-content img { margin: 10px auto 24px; border-radius: 8px; }

/* ═══════════════════ 联系我们页 ═══════════════════ */
.contact-page {
  min-height: 90vw;
  background: url("/site-design/assets/contact/form-bg.png") center/100% 100% no-repeat;
  padding: 4vw 0;
}
.contact-info-bar {
  display: flex; gap: 2vw; margin-bottom: 2.4vw;
}
.ci-item {
  flex: 1; display: flex; align-items: center; gap: 18px;
  background: #fff; border-radius: 10px; padding: 26px 34px;
  box-shadow: 0 8px 26px rgba(4,100,120,.10);
}
.ci-item img { width: 46px; height: auto; }
.ci-item h6 { font-size: 13px; color: var(--t-3); font-weight: normal; margin-bottom: 6px; letter-spacing: 1px; }
.ci-item p { font-size: 16px; color: var(--t-1); font-weight: 600; letter-spacing: .5px; }

.contact-form-wrap {
  width: 900px; max-width: 100%; margin: 0 auto;
  background: #fff; border-radius: 14px; padding: 44px 54px 50px;
  box-shadow: 0 14px 44px rgba(4,100,120,.14);
}
.cf-title { font-size: 22px; color: var(--c-main-deep); letter-spacing: 3px; text-align: center; margin-bottom: 30px; }
.cf-row { display: flex; gap: 26px; margin-bottom: 20px; }
.cf-field { flex: 1; }
.cf-field label { display: block; font-size: 14px; color: var(--t-2); margin-bottom: 8px; }
.cf-field label::before { content: "*"; color: var(--c-main); margin-right: 4px; }
.cf-field input, .cf-field textarea {
  width: 100%; padding: 12px 16px; border: 1px solid #D9E3E8; border-radius: 6px;
  font-size: 14px; color: var(--t-1); font-family: inherit; outline: none;
  transition: border-color .25s, box-shadow .25s; background: #FAFCFD;
}
.cf-field input:focus, .cf-field textarea:focus {
  border-color: var(--c-main); box-shadow: 0 0 0 3px rgba(4,169,188,.14); background: #fff;
}
.cf-field textarea { resize: vertical; min-height: 110px; }
.cf-err { font-size: 12px; color: #D64545; margin-top: 6px; min-height: 16px; }
.cf-field.error input, .cf-field.error textarea { border-color: #D64545; background: #FFF8F8; }
.cf-captcha { max-width: 340px; }
.captcha-box { display: flex; gap: 12px; align-items: center; }
.captcha-box input { flex: 1; }
.captcha-code {
  flex: 0 0 110px; height: 44px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(120deg, #DFF5F8, #C4EDF3); border-radius: 6px;
  font-size: 19px; letter-spacing: 6px; font-weight: 700; color: var(--c-main-deep);
  font-style: italic; cursor: pointer; user-select: none; font-family: Georgia, serif;
}
.cf-submit {
  display: block; margin: 8px auto 0; padding: 13px 58px; border-radius: 25px;
  background: linear-gradient(140deg, var(--c-main), #0389A0); color: #fff;
  font-size: 16px; letter-spacing: 6px; box-shadow: 0 8px 22px rgba(4,140,160,.32);
  transition: transform .25s, box-shadow .25s;
}
.cf-submit:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(4,140,160,.42); }

/* ═══════════════════ 灯箱 ═══════════════════ */
.lightbox {
  position: fixed; inset: 0; z-index: 200; display: none;
  background: rgba(2,26,33,.88); backdrop-filter: blur(4px);
}
.lightbox.show { display: flex; align-items: center; justify-content: center; }
.lb-img { max-width: 78vw; max-height: 76vh; border-radius: 8px; box-shadow: 0 20px 60px rgba(0,0,0,.5); }
.lb-title { position: absolute; bottom: 46px; left: 0; right: 0; text-align: center; color: rgba(255,255,255,.92); font-size: 15px; letter-spacing: 2px; }
.lb-close {
  position: absolute; top: 26px; right: 34px; width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255,255,255,.14); color: #fff; font-size: 30px; line-height: 48px; text-align: center;
  transition: background .25s;
}
.lb-close:hover { background: rgba(255,255,255,.3); }
.lb-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 56px; height: 56px; border-radius: 50%; font-size: 34px; color: #fff;
  background: rgba(255,255,255,.14); line-height: 56px; text-align: center; transition: background .25s;
}
.lb-arrow:hover { background: rgba(255,255,255,.3); }
.lb-prev { left: 40px; }
.lb-next { right: 40px; }

/* ═══════════════════ Toast ═══════════════════ */
.toast {
  position: fixed; left: 50%; bottom: 60px; transform: translateX(-50%) translateY(30px);
  background: rgba(20,50,60,.92); color: #fff; padding: 12px 30px; border-radius: 26px;
  font-size: 14px; letter-spacing: 1px; opacity: 0; pointer-events: none; z-index: 300;
  transition: all .35s ease; box-shadow: 0 10px 30px rgba(0,20,30,.3);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.ok { background: linear-gradient(140deg, #0AAA7C, #078A64); }
.toast.err { background: linear-gradient(140deg, #D65757, #B03A3A); }

/* ═══════════════════ 原型说明角标 ═══════════════════ */
.proto-note {
  position: fixed; left: 18px; bottom: 18px; z-index: 90;
  background: rgba(4,60,75,.88); color: #CFF6FB; border-radius: 10px;
  padding: 10px 16px; font-size: 12px; line-height: 1.8; max-width: 300px;
  box-shadow: 0 8px 24px rgba(0,20,30,.3); backdrop-filter: blur(4px);
}
.proto-note b { display: block; font-size: 13px; color: #fff; margin-bottom: 2px; }

/* ═══════════════════ 入场动画 ═══════════════════ */
[data-anim] { opacity: 0; transition: opacity .7s ease, transform .7s ease; }
[data-anim="fade-up"] { transform: translateY(34px); }
[data-anim="zoom-in"] { transform: scale(.92); }
[data-anim].in { opacity: 1; transform: none; }
[data-anim][data-delay="1"] { transition-delay: .12s; }
[data-anim][data-delay="2"] { transition-delay: .24s; }
[data-anim][data-delay="3"] { transition-delay: .36s; }
[data-anim][data-delay="4"] { transition-delay: .48s; }
[data-anim][data-delay="5"] { transition-delay: .6s; }
[data-anim][data-delay="6"] { transition-delay: .72s; }
[data-anim][data-delay="7"] { transition-delay: .84s; }
[data-anim][data-delay="8"] { transition-delay: .96s; }
html:not(.js) [data-anim] { opacity: 1; transform: none; }

/* 锚点跳转时为固定导航留出空间 */
section[id^="sec-"] { scroll-margin-top: calc(var(--nav-h) + 12px); }

/* ═══════════════════ 响应式 ═══════════════════ */
@media (max-width: 1199px) {
  :root { --nav-h: 84px; }
  .nav-item > a { padding: 10px 12px; font-size: 15px; }
  .exp-grid { gap: 24px; }
  .exp-card { width: 292px; }
  .sys-stage { width: 760px; }
  .mod-sys .sys-stage { width: min(1152px, calc(100% - 40px)); }
  .mod-sys { height: auto; min-height: 0; padding-bottom: 40px; }
  .mod-brand, .mod-exp, .mod-honor, .mod-news { height: auto; min-height: 0; padding-bottom: 40px; }
  .mod-brand, .health-concept { display: block; padding-top: 40px; }
  .mod-brand .brand-grid { width: min(1152px, calc(100% - 40px)); }
  .about-brand { height: auto; min-height: 0; padding: 40px 24px; background-size: cover; }
  .about-brand .ab-left, .about-brand .ab-right { position: static; width: auto; max-width: 720px; margin: 0 auto; }
  .ab-left .ab-btn { margin-top: 24px; }
  .ab-right { margin-top: 28px; }
  .ab-btn img { width: 121px; }
  /* 发展历程：改流式布局（年份+正文上下排，按2025→2014降序） */
  .about-dev {
    height: auto; min-height: 0; padding: 48px 20px 56px;
    background-size: cover; background-position: top center;
  }
  .dev-en { position: static; display: block; width: min(70%, 500px); margin: 0 auto; }
  .dev-title { position: static; font-size: 26px; margin-top: 10px; }
  .dev-sub { position: static; font-size: 15px; line-height: 1.6; margin-top: 12px; padding: 0 12px; }
  .dev-list { position: static; margin-top: 32px; }
  .dev-item { position: static; width: auto; max-width: 680px; margin: 0 auto 30px; }
  .dev-item:last-child { margin-bottom: 0; }
  .dev-year { font-size: 20px; }
  .dev-text { margin-top: 10px; font-size: 14px; line-height: 1.8; }
  .about-honor { height: auto; padding-bottom: 40px; }
  .health-collab { height: auto; padding-bottom: 40px; }
  .health-feedback { height: auto; padding-bottom: 40px; }
  .rs-patent { min-height: 0; padding-bottom: 40px; }
  .patent-body { min-height: 0; }
  .contact-page { min-height: 0; padding-bottom: 40px; }
  .honor-grid { transform: none; }
  .honor-grid .honor-item:nth-child(n+4) { margin-top: 0; }
  .honor-grid .honor-item img { height: auto; max-height: none; }
  .honor-grid .honor-item:nth-child(n) img { height: 240px; }
}

@media (max-width: 991px) {
  .nav-burger { display: block; }
  .nav-menu {
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    background: rgba(1,100,122,.97); flex-direction: column; align-items: stretch;
    padding: 10px 24px 24px; gap: 0; max-height: calc(100vh - var(--nav-h)); overflow-y: auto;
    transform: translateX(100%); transition: transform .35s ease;
  }
  .nav-menu.open { transform: translateX(0); }
  .nav-item > a { padding: 14px 6px; font-size: 16px; }
  .sub-menu { position: static; opacity: 1; visibility: visible; transform: none; background: rgba(255,255,255,.08); box-shadow: none; border-radius: 8px; margin: 0 0 8px; }
  .sub-menu li a { color: rgba(255,255,255,.82); text-align: left; }
  .sub-menu li a:hover { background: rgba(255,255,255,.12); color: #fff; }

  .brand-grid { flex-direction: column; gap: 26px; }
  .exp-grid { flex-wrap: wrap; }
  .news-grid { flex-wrap: wrap; }
  .ab-frame { padding: 20px 22px 24px; }
  .ab-frame + .ab-frame { margin-top: 18px; }
  .ab-list { margin-top: 14px; }
  .ab-list li { padding-left: 18px; margin-bottom: 8px; }
  .ab-list li::before { top: 0.65em; }
  .dev-list { margin-top: 26px; }
  .dev-item { margin-bottom: 24px; }
  .dev-text { font-size: 13.5px; }
  .mgmt-cards { flex-wrap: wrap; }
  .flip-card { flex: 0 0 calc(50% - 12px); height: 460px; }
  .collab-grid { grid-template-columns: repeat(2, 1fr); }
  .test-grid { flex-direction: column; }
  .test-service { flex: none; width: 100%; }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .news-list { grid-template-columns: 1fr; }
  .contact-info-bar { flex-direction: column; }
  .cf-row { flex-direction: column; gap: 0; }
  .contact-form-wrap { padding: 30px 26px 36px; }
  .footer { min-height: 0; padding-bottom: 42px; }
  .footer-inner { min-height: 0; grid-template-columns: minmax(260px, .9fr) minmax(0, 1.6fr); gap: 34px; padding: 34px 0 18px; }
  .footer-nav { grid-template-columns: repeat(3, minmax(80px, 1fr)); gap: 24px; }
  .footer-qr { grid-column: 2; justify-self: end; }
  .footer-bottom { height: 42px; line-height: 42px; text-align: center; }
}

@media (max-width: 767px) {
  :root { --nav-h: 64px; }
  .nav-logo img { height: 32px; }
  .banner { height: auto; min-height: 0; }
  .banner-slide { height: 58vw; min-height: 260px; }
  .banner-overlay { align-items: flex-start; padding-top: 26vw; }
  .banner-frame { width: 86vw; max-width: 86vw; padding: 22px 20px; }
  .banner-frame h2 { font-size: 17px; letter-spacing: 1px; }
  .banner-frame p { font-size: 12px; letter-spacing: 2px; margin: 10px 0 14px; }
  .banner-btn img { height: 32px; }
  .banner-arrow { width: 40px; height: 40px; font-size: 24px; }
  .banner-arrow.prev { left: 8px; }
  .banner-arrow.next { right: 8px; }
  .sub-banner { height: 57vw; min-height: 220px; }
  .hc-window { flex-basis: 70vw; width: 70vw; }
  .hc-item img { width: auto; height: auto; max-width: calc(100% - 6%); max-height: min(58vw, 300px); margin-bottom: 12px; object-fit: contain; }
  .hc-item p { font-size: 20px; }
  .transition { height: 32vw; min-height: 140px; }
  .transition-copy { left: 66%; }
  .transition-copy strong { font-size: 20px; letter-spacing: 1px; }
  .transition-copy span { margin-top: 5px; font-size: 6px; }
  .footer { min-height: 0; padding: 0 0 42px; }
  .footer-inner { grid-template-columns: 1fr; gap: 26px; padding: 30px 20px 20px; }
  .footer-brand img.fb-logo { width: min(100%, 260px); }
  .footer-contact { margin-top: 18px; }
  .footer-nav { grid-column: 1; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 28px; }
  .fn-col h5 { margin-bottom: 11px; }
  .fn-col a { padding-bottom: 9px; }
  .footer-qr { grid-column: 1; justify-self: start; display: flex; align-items: center; gap: 12px; text-align: left; }
  .footer-qr img { width: 82px; margin: 0; }
  .footer-bottom { height: 42px; line-height: 1.4; display: flex; align-items: center; text-align: center; }
  .proto-note { display: none; }

  .mod { padding-left: 18px; padding-right: 18px; }
  .mod-brand .brand-grid { width: 100%; max-width: none; gap: 28px; }
  .mod-brand .brand-text { top: 0; padding-top: 20px; padding-left: 0; }
  .sys-intro { width: auto; max-width: 100% !important; padding-left: 0; padding-right: 0; }
  .news-row .nr-title { min-width: 0; flex: 1 1 auto; }
  .news-row { gap: 10px; }
  .mod-brand { background-size: cover; }
  .sys-stage { width: 100%; max-width: none; }
  .sys-node { width: 150px; min-width: 0; gap: 3px; }
  .sys-node b { font-size: 14px; }
  .sys-node span { display: none; }
  .sys-dot-gif { width: 28px; height: 28px; transform: scale(3.2); }
  .sys-node.n1, .sys-node.n2 { left: 0; right: auto; }
  .sys-node.n3, .sys-node.n4 { right: 0; left: auto; }
  .sys-node.n1 { top: 35%; }
  .sys-node.n2 { top: 68%; }
  .sys-node.n3 { top: 35%; }
  .sys-node.n4 { top: 68%; }
  .sys-node.n1 .sys-dot-gif, .sys-node.n2 .sys-dot-gif { left: 59px; }
  .sys-node.n3 .sys-dot-gif, .sys-node.n4 .sys-dot-gif { left: 59px; position: absolute; right: 8.8vw; top: 6px;}
  .sys-node.n3 .sys-node-copy, .sys-node.n4 .sys-node-copy { margin-left: 91px; }
  .sys-node.n1::after, .sys-node.n2::after { left: 82px; width: 52px; }
  .sys-node.n3::after, .sys-node.n4::after { left: 16px; width: 52px; }
  .exp-card { width: 100%; max-width: 340px; }
  .honor-grid { gap: 20px; }
  .honor-grid .honor-item:nth-child(n) img { height: 150px; }
  .news-grid { flex-direction: column; align-items: center; gap: 18px; }
  .news-card { flex: none; width: 100%; max-width: 494px; }
  .news-card .nc-img { height: 200px; }
  .news-list-wrap { width: 100%; padding: 18px 20px 22px; }
  .news-row { height: auto; min-height: 0; padding: 12px 0; flex-direction: column; align-items: flex-start; gap: 4px; }
  .ec-arrow img { width: 34px; height: 54px; }
  .flip-card { flex: 0 0 100%; height: 480px; }
  .collab-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .coop-slide { flex-direction: column; }
  .coop-slide > img { flex: none; width: 100%; height: 200px; }
  .coop-text { padding: 22px 20px; }
  .coop-prev { left: 4px; }
  .coop-next { right: 4px; }
  .news-item { flex-direction: column; }
  .news-item .ni-img { flex: none; width: 100%; height: 180px; }
  .news-item .ni-body { padding: 14px 16px; }
  .tech-stats { flex-direction: column; gap: 14px; align-items: center; }
  .ts-item b { font-size: 42px; }
  .vf-play { width: 64px; height: 64px; }
  .cf-captcha { max-width: 100%; }
}

/* 首页品牌特色：正文标题锚定背景 ABOUT 的原始左边缘（228 / 1920）。 */
@media (min-width: 992px) {
  .mod-brand .brand-grid {
    position: relative;
    width: 100%;
    max-width: none;
    height: 100%;
    margin: 0;
  }
  .mod-brand .brand-text {
    position: absolute;
    top: calc(48% - 108px);
    left: 10.73vw;
    width: 38.36vw;
    flex: none;
    margin: 0;
    padding-top: 34px;
    padding-left: 1.146vw;
  }
  .mod-brand .brand-points {
    position: absolute;
    top: calc(50% - 193px);
    left: 53.89vw;
    width: 35.11vw;
    flex: none;
    margin: 0;
  }
}

@media (min-width: 768px) and (max-width: 991px) {
  .mod-brand .brand-grid { align-items: flex-start; }
  .mod-brand .brand-text {
    flex: none;
    width: 76vw;
    margin-left: calc(11.875vw - 42px);
    padding-left: 22px;
  }
  .mod-brand .brand-points { align-self: center; }
}

/* ═══════════════════ 联系我们页·设计稿还原覆盖 ═══════════════════ */
/* 内容区占满整行，不受 .container 的内容宽度限制 */
.container.contact-content { width: 100%; max-width: none; }
@media (min-width: 768px) {
  .contact-page {
    position: relative;
    height: 90vw;
    min-height: 0;
    padding: 0;
    background-size: 100% 100%;
    overflow: hidden;
  }
  .contact-page [data-anim] { opacity: 1; transform: none; }
  .contact-content {
    position: relative;
    width: 100%;
    max-width: none;
    height: 100%;
    margin: 0;
  }
  .contact-head, .contact-message-head {
    position: absolute;
    z-index: 2;
    left: 0;
    right: 0;
    text-align: center;
  }
  .contact-head { top: 7.45vw; }
  .contact-message-head { top: 27.35vw; }
  .contact-head h2, .contact-message-head h2 {
    position: relative;
    margin: 0;
    color: #08a9bd;
    font-size: min(2.85vw, 55px);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: .04em;
  }
  .contact-head h2::after, .contact-message-head h2::after {
    content: "";
    position: absolute;
    left: 50%;
    top: calc(100% + min(.95vw, 18px));
    width: min(7.96875vw, 153px);
    height: min(.26042vw, 5px);
    margin: 0;
    background: url("/site-design/assets/contact/line.png") center/100% 100% no-repeat;
    transform: translateX(-50%);
  }
  .contact-head span, .contact-message-head span {
    display: block;
    margin-top: min(1.55vw, 30px);
    color: #3B3B3B;
    font-family: Arial, serif;
    font-size: 0.85vw;
    line-height: 1.2;
    letter-spacing: .05em;
  }
  /* 设计稿：留言区英文说明 = Arial / 400 / 21px（1.0937vw）/ #3B3B3B */
  .contact-message-head span {
    font-family: Arial, sans-serif; font-weight: 400;
    font-size: 0.85vw; color: #3B3B3B;
  }
  .contact-info-bar {
    position: absolute;
    top: 18.25vw;
    left: 12vw;
    width: min(76.46vw, 1468px);
    height: min(6.61vw, 127px);
    display: block;
    margin: 0;
    padding: 0;
    background: url("/site-design/assets/contact/info-bar.png") center/100% 100% no-repeat;
  }
  .ci-item {
    position: absolute;
    top: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    gap: min(1.6vw, 31px);
    padding: 0;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
  }
  .ci-item:first-child { left: 4.9%; width: 39%; }
  .ci-item:last-child { left: 44.6%; right: 1.5%; }
  .ci-item img { flex: none; width: auto; height: min(3.49vw, 67px); }
  .ci-item:first-child img { width: min(3.18vw, 61px); }
  .ci-item:last-child img { width: min(2.19vw, 42px); }
  .ci-item h5 {
    margin: 0 0 .18vw;
    color: #777;
    font-size: min(1.04vw, 20px);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: 0;
  }
  .ci-item p {
    margin: 0;
    color: #777;
    font-size: min(1.04vw, 20px);
    font-weight: 400;
    line-height: 1.3;
    letter-spacing: 0;
    white-space: nowrap;
  }
  .contact-form-wrap {
    position: absolute;
    top: 37.7vw;
    left: 12vw;
    width: min(76.46vw, 1468px);
    height: min(32.66vw, 627px);
    margin: 0;
    padding: 0;
    background: url("/site-design/assets/contact/form-white.png") center/100% 100% no-repeat;
    border-radius: 0;
    box-shadow: none;
  }
  .contact-form-wrap .cf-title { display: none; }
  .contact-form { position: absolute; inset: 0; }
  .contact-form .cf-row {
    position: absolute;
    left: 10.9%;
    right: 5%;
    display: block;
    margin: 0;
  }
  .contact-form .cf-row:nth-child(1) { top: 14.7%; height: 20%; }
  .contact-form .cf-row:nth-child(2) { top: 76.4%; height: 10%; }
  .contact-form .cf-row:nth-child(3) { top: 33.9%; height: 42%; }
  .contact-form .cf-row:nth-child(1) .cf-field { position: absolute; left: 0; right: 0; }
  .contact-form .cf-row:nth-child(1) .cf-field:first-child { top: 0; }
  .contact-form .cf-row:nth-child(1) .cf-field:last-child { top: min(3.15vw, 60px); }
  .contact-form .cf-field { position: relative; }
  .contact-form .cf-field label {
    position: absolute;
    top: min(.42vw, 8px);
    right: auto;
    left: -7.2%;
    width: min(4vw, 77px);
    margin: 0;
    color: #777;
    font-size: min(1.04vw, 20px);
    font-weight: 400;
    line-height: 1.2;
    text-align: left;
    white-space: nowrap;
  }
  .contact-form .cf-field label::before { display: none; }
  .contact-form .cf-field input,
  .contact-form .cf-field textarea {
    display: block;
    width: 100%;
    border: 1px solid #fff;
    border-radius: 0;
    padding: 0 min(.65vw, 12px);
    color: #777;
    background: url("/site-design/assets/contact/input-bg.png") center/100% 100% no-repeat;
    font-size: min(1.04vw, 20px);
    line-height: 1.2;
  }
  .contact-form .cf-field input::placeholder,
  .contact-form .cf-field textarea::placeholder { color: transparent; }
  .contact-form .cf-field input { height: min(2.55vw, 49px); }
  .contact-form .cf-field textarea {
    height: min(13.55vw, 260px);
    min-height: 0;
    padding-top: min(.5vw, 10px);
    resize: none;
    background-image: url("/site-design/assets/contact/content-frame.png");
  }
  .contact-form .cf-err { display: none; }
  .contact-form .cf-captcha { max-width: none; }
  .contact-form .captcha-box { display: flex; gap: 0; align-items: stretch; }
  .contact-form .captcha-box input { flex: 1; }
  .contact-form .captcha-code {
    flex: 0 0 min(7.03vw, 135px);
    height: min(2.55vw, 49px);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0;
    background: url("/site-design/assets/contact/captcha-input.png") center/100% 100% no-repeat;
    color: #fff;
    font-family: Georgia, serif;
    font-size: min(1.25vw, 24px);
    font-style: normal;
    letter-spacing: .18em;
  }
  .contact-form .cf-submit {
    position: absolute;
    top: 87.5%;
    left: 10.9%;
    width: min(5.52vw, 106px);
    height: min(2.55vw, 49px);
    margin: 0;
    padding: 0;
    border-radius: 0;
    background: url("/site-design/assets/contact/btn-submit.png") center/100% 100% no-repeat;
    box-shadow: none;
    color: #fff;
    font-size: min(.73vw, 14px);
    letter-spacing: 0;
  }
  .contact-notice {
    position: absolute;
    top: 72.6vw;
    left: 15.63vw;
    width: min(50vw, 960px);
    color: #777;
    font-size: min(1.1vw, 21px);
    line-height: 1.9;
  }
  .contact-notice strong { display: block; font-weight: 600; }
  .contact-notice p { margin: 0; font-size: min(1vw, 20px); }
}

@media (max-width: 767px) {
  .contact-page { position: relative; }
  .contact-head, .contact-message-head { position: static; text-align: center; }
  .contact-head { padding-top: 34px; }
  .contact-message-head { margin-top: 32px; }
  .contact-head h2, .contact-message-head h2 { margin: 0; color: var(--c-main); font-size: 28px; }
  .contact-head span, .contact-message-head span { display: block; margin-top: 5px; color: #888; font-size: 11px; }
  .contact-notice { margin: 30px 20px 0; color: #777; font-size: 12px; line-height: 1.8; }
}

/* 最新动态页在窄屏下改为分类横排与单列封面卡，保留图片标题叠层。 */
@media (max-width: 767px) {
  .news-page { padding: 38px 0 48px; }
  .news-page-inner { width: calc(100% - 36px); max-width: none; grid-template-columns: 1fr; gap: 22px; }
  .news-tabs { flex-direction: row; justify-content: stretch; padding: 6px; }
  .news-tab { flex: 1; min-height: 38px; padding: 0 8px; font-size: 12px; text-align: center; }
  .news-tab::after { display: none; }
  .news-tab.active::before { top: auto; right: 18%; bottom: 0; left: 18%; width: auto; height: 2px; }
  .news-list { grid-template-columns: 1fr; gap: 18px; }
  .news-item { aspect-ratio: 1.6 / 1; }
  .news-item .ni-img { position: absolute; width: auto; height: auto; }
  .news-item .ni-body { position: absolute; padding: 18px; }
  .news-item h3 { font-size: 15px; }
  .news-loadmore { height: 44px; margin-top: 28px; }
  .news-loadmore span { font-size: 13px; }
}

/* ═══════════════════ 健康管理页·设计稿还原覆盖 ═══════════════════ */
.health-concept {
  position: relative;
  display: block;
  height: 58.802vw;
  min-height: 0;
  padding: 0;
  background-size: 100% auto;
  background-position: center top;
  background-repeat: no-repeat;
}
.concept-inner { position: relative; width: 100%; height: 100%; }
.concept-heading {
  position: absolute;
  top: 5.64vw;
  left: 0;
  right: 0;
  text-align: center;
}
.concept-en {
  width: 21.302vw;
  height: auto;
  margin: 0 auto;
  opacity: 1;
}
.concept-heading .mod-title {
  margin-top: -1.25vw;
  font-size: 2.25vw;
  line-height: 1.25;
  letter-spacing: .14em;
  color: #08a9bd;
}
.concept-lead {
  position: absolute;
  top: 15.07vw;
  left: 19.6%;
  width: 60.8%;
  margin: 0;
  color: #8a8a8a;
  font-size: 1.02vw;
  line-height: 1.85;
  text-align: center;
}
.concept-panels {
  position: absolute;
  top: 23.47vw;
  left: 11.8%;
  width: 76.4%;
  display: flex;
  gap: .65vw;
}
.concept-panel {
  flex: 1;
  height: 23.37vw;
  padding: 3.71vw 4.6vw 2.6vw;
  background: url("/site-design/assets/health/concept-rect.png") center/100% 100% no-repeat;
}
.concept-panel h3 {
  margin: 0 0 1.15vw;
  color: #0aaabd;
  font-size: 2.02vw;
  line-height: 1.25;
  text-align: center;
  letter-spacing: .06em;
}
.concept-panel p {
  margin: 0;
  color: #8a8a8a;
  font-size: 1.03vw;
  line-height: 1.9;
  text-align: justify;
}

.health-mgmt {
  position: relative;
  height: 96.56vw;
  min-height: 0;
  padding: 0;
  background-size: 100% 48.49vw;
  background-position: center top;
  background-repeat: no-repeat;
}
.mgmt-head {
  position: absolute;
  z-index: 3;
  top: 5.6vw;
  left: 0;
  right: 0;
  margin: 0;
  text-align: center;
}
.mgmt-en {
  width: 39.11vw;
  height: auto;
  margin: 0 auto;
  opacity: .72;
}
.mgmt-head .mod-title {
  margin-top: -1.35vw;
  font-size: 2.28vw;
  line-height: 1.2;
  letter-spacing: .12em;
  color: #08a9bd;
}
.mgmt-cards {
  position: absolute;
  z-index: 2;
  top: 48.49vw;
  left: 0;
  right: 0;
  display: flex;
  gap: 0;
  margin: 0;
  padding: 0;
}
.flip-card {
  flex: 0 0 25%;
  width: 25%;
  height: 48.07vw;
}
@media (min-width: 1200px) {
  .mgmt-cards .flip-card { position: relative; }
  .mgmt-cards .flip-card:not(:last-child)::after {
    content: "";
    position: absolute;
    z-index: 4;
    top: 0;
    right: 0;
    bottom: 0;
    width: 1px;
    background: #fff;
    pointer-events: none;
  }
}
.flip-front, .flip-back { border-radius: 0; }
.flip-front img { width: 100%; height: 100%; object-fit: cover; }
.flip-back { background: #08aabb; }
.fb-color { opacity: 1; }
.fb-body { position: relative; z-index: 2; display: block; height: 100%; padding: 0; color: #fff; }
.fb-img {
  position: absolute; top: 32.07%; left: 0; width: 100%; height: 49.08%; max-height: none;
  object-fit: cover; margin: 0;
}
.fb-icon {
  position: absolute; top: 5.85%; left: 50%; width: 16.25%; height: auto;
  margin: 0; transform: translateX(-50%);
}
.fb-body h4 {
  position: absolute; top: 17.66%; left: 50%; width: 50.42%; height: 6.07%; margin: 0;
  display: flex; align-items: center; justify-content: center;
  background: url("/site-design/assets/health/text-frame.png") center/100% 100% no-repeat;
  color: #fff; font-size: min(1.88vw, 36px); font-weight: 700; line-height: 1;
  letter-spacing: .04em; transform: translateX(-50%);
}
.fb-body p {
  position: absolute; right: 4%; bottom: 0; left: 4%; height: 18.85%; margin: 0;
  display: flex; align-items: center; justify-content: center; padding: 0 2%;
  color: #fff; font-size: min(1.2vw, 23px); font-weight: 500; line-height: 1.55;
  text-align: center; opacity: 1;
}

.health-collab {
  position: relative;
  height: 61.927vw;
  min-height: 0;
  padding: 0;
  background-size: 100% 100%;
}
.collab-head {
  position: absolute;
  top: 3.35vw;
  left: 0;
  right: 0;
  margin: 0;
  text-align: center;
  z-index: 2;
}
.collab-en {
  width: 47.135vw;
  height: auto;
  margin: 0 auto;
}
.collab-head .mod-title {
  margin-top: -1.55vw;
  font-size: 2.28vw;
  line-height: 1.2;
  letter-spacing: .12em;
  color: #08a9bd;
}
.collab-grid { display: none; }
.collab-note {
  position: absolute;
  z-index: 2;
  left: 16.3%;
  bottom: 4.3vw;
  width: 67.4%;
  margin: 0;
  color: #8a8a8a;
  font-size: 1.02vw;
  line-height: 1.9;
  text-align: center;
}

.health-expert {
  position: relative;
  height: 62.448vw;
  min-height: 0;
  padding: 0;
  overflow: hidden;
  background: #fff;
}
.expert-head {
  position: absolute;
  z-index: 4;
  top: 3.1vw;
  left: 0;
  right: 0;
  margin: 0;
  text-align: center;
}
.expert-title-img {
  width: 22.34vw;
  height: auto;
  margin: 0 auto;
  opacity: 1;
}
.expert-head .mod-title {
  margin-top: -2.55vw;
  font-size: 2.28vw;
  line-height: 1.2;
  letter-spacing: .12em;
  color: #08a9bd;
}
.expert-tabs {
  width: 63.6%;
  margin: 2.05vw auto 0;
  display: flex;
  border-bottom: 1px solid #dce7e9;
}
.expert-tabs span {
  position: relative;
  flex: 1;
  padding: 0 0 .55vw;
  color: #666;
  font-size: .96vw;
  line-height: 1.4;
  text-align: center;
  white-space: nowrap;
}
.expert-tabs span.active::after {
  content: "";
  position: absolute;
  left: 16%;
  right: 16%;
  bottom: -1px;
  height: 2px;
  background: #08a9bd;
}
.expert-carousel {
  position: absolute;
  inset: 0;
  margin: 0;
}
.ec-window, .ec-track, .ec-slide { width: 100%; height: 100%; }
.ec-slide { flex-basis: 100%; }
.ec-slide img { width: 100%; height: 100%; object-fit: cover; }
.ec-arrow img { width: 2.95vw; height: auto; }
.ec-prev { left: 4.1vw; }
.ec-next { right: 4.1vw; }
.ec-dots { bottom: .9vw; }

.health-feedback {
  position: relative;
  height: 72vw;
  min-height: 0;
  padding: 0;
  overflow: hidden;
  background-size: 100% 100%;
}
.feedback-head {
  position: absolute;
  z-index: 3;
  top: 5.55vw;
  left: 0;
  right: 0;
  margin: 0;
  text-align: center;
}
.feedback-title-img {
  width: 30.885vw;
  height: auto;
  margin: 0 auto;
  opacity: 1;
}
.feedback-head .mod-title {
  margin-top: -2.7vw;
  font-size: 2.28vw;
  line-height: 1.2;
  letter-spacing: .12em;
  color: #08a9bd;
}
.feedback-video {
  position: absolute;
  z-index: 2;
  top: 24.1vw;
  left: 50%;
  width: 60.48vw;
  margin: 0;
  transform: translateX(-50%);
}
.video-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 1336 / 762;
  max-width: none;
  margin: 0;
  overflow: hidden;
  border-radius: min(2vw, 34px);
  background: #fff;
  box-shadow: 0 min(.55vw, 10px) min(1.5vw, 28px) rgba(0, 35, 50, .18);
}
.video-frame .vf-bg { display: none; }
.vf-body {
  position: absolute;
  inset: min(.65vw, 12px) min(.75vw, 14px);
  overflow: hidden;
  border-radius: min(1.35vw, 26px);
  background: none;
}
.vf-cover { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.vf-tip { display: none; }
.vf-play { position: absolute; z-index: 1; inset: 0; width: auto; height: auto; min-width: 0; min-height: 0; border-radius: 0; background: transparent; box-shadow: none; }
.vf-play:hover { transform: none; }
.fb-prev { left: -5.2vw; }
.fb-next { right: -5.2vw; }



@media (max-width: 767px) {
  .health-concept { height: auto; min-height: 760px; padding: 34px 18px 42px; background-size: cover; }
  .concept-inner { height: auto; }
  .concept-heading, .concept-lead, .concept-panels { position: static; }
  .concept-en { width: 190px; }
  .concept-heading .mod-title { margin-top: -12px; font-size: 28px; }
  .concept-lead { width: 100%; margin: 30px auto 0; font-size: 14px; line-height: 1.9; }
  .concept-panels { width: 100%; margin-top: 26px; flex-direction: column; gap: 16px; }
  .concept-panel { height: auto; min-height: 240px; padding: 34px 28px 28px; }
  .concept-panel h3 { margin-bottom: 14px; font-size: 24px; }
  .concept-panel p { font-size: 14px; line-height: 1.9; }

  .health-mgmt { height: auto; min-height: 0; padding: 34px 0 0; background-size: auto 390px; background-position: center top; }
  .mgmt-head { position: static; }
  .mgmt-en { width: 280px; }
  .mgmt-head .mod-title { margin-top: -12px; font-size: 28px; }
  .mgmt-cards { position: static; margin-top: 250px; flex-wrap: wrap; }
  .flip-card { flex: 0 0 50%; width: 50%; height: 96vw; }
  .fb-body h4 { font-size: 20px; }
  .fb-body p { font-size: 12px; line-height: 1.5; }

  .health-collab { height: auto; min-height: 620px; padding: 34px 18px 42px; background-size: cover; }
  .collab-head { position: static; }
  .collab-en { width: 300px; }
  .collab-head .mod-title { margin-top: -12px; font-size: 28px; }
  .collab-note { position: static; width: 100%; margin-top: 390px; font-size: 14px; }

  .health-expert { height: 62.45vw; min-height: 420px; }
  .expert-head { top: 24px; }
  .expert-title-img { width: 220px; }
  .expert-head .mod-title { margin-top: -12px; font-size: 28px; }
  .expert-tabs { width: 88%; margin-top: 22px; }
  .expert-tabs span { font-size: 11px; white-space: normal; }
  .ec-arrow img { width: 28px; }

  .health-feedback { height: 138vw; min-height: 560px; background-size: cover; }
  .feedback-head { top: 24px; }
  .feedback-title-img { width: 250px; }
  .feedback-head .mod-title { margin-top: -12px; font-size: 28px; }
  .feedback-video { top: 180px; width: 88vw; }
  .fb-prev { left: -8px; }
  .fb-next { right: -8px; }
}

/* 科研创新在窄屏下保持内容顺序和可读性，不沿用 1920px 的绝对坐标。 */
@media (max-width: 767px) {
  .rs-digi { height: auto; max-height: none; padding: 54px 18px 58px; }
  .rs-digi .rs-head { position: relative; height: 156px; width: 100%; max-width: none; }
  .rs-digi .rs-title-img { top: 0; width: min(84vw, 360px); }
  .rs-digi .rs-head h2 { top: 68px; font-size: 23px; white-space: nowrap; }
  .rs-digi .rs-head p { top: 105px; padding: 0 12px; font-size: 11px; line-height: 1.75; }
  .digi-grid, .digi-grid.second { width: 100%; max-width: 420px; margin: 0 auto; flex-direction: column; gap: 16px; }
  .digi-grid.second { margin-top: 16px; }
  .digi-card.v, .digi-card.h, .digi-grid.second .digi-card.h:nth-child(2) { flex: none; width: 100%; }
  .digi-label h4 { font-size: 20px; }
  .digi-label p { margin-top: 5px; font-size: 10px; }

  .rs-patent { height: auto; max-height: none; min-height: 650px; padding: 54px 24px 60px; background-size: auto 100%; background-position: 58% top; }
  .rs-patent .rs-head { position: relative; top: auto; left: auto; width: min(60vw, 240px); height: 86px; margin: 0; }
  .rs-patent .rs-title-img { width: 100%; }
  .rs-patent .rs-head h2 { top: 55px; font-size: 28px; }
  .patent-desc { position: relative; top: auto; left: auto; width: min(52vw, 210px); margin: 82px 0 0; font-size: 12px; line-height: 1.9; }

  .rs-tech { height: auto; max-height: none; min-height: 650px; padding: 54px 24px; background-size: auto 100%; background-position: 61% center; }
  .rs-tech .rs-head { position: relative; top: auto; left: auto; width: min(88vw, 360px); height: 74px; margin: 0 auto; }
  .rs-tech .rs-title-img { width: 100%; }
  .rs-tech .rs-head h2 { top: 38px; font-size: 30px; }
  .tech-desc { position: relative; top: auto; left: auto; width: 100%; margin: 62px 0 0; font-size: 14px; line-height: 2; }

  .rs-test { height: auto; max-height: none; min-height: 0; padding: 54px 18px 42px; background-size: cover; background-position: center top; }
  .rs-test .rs-head { position: relative; top: auto; left: auto; width: min(70vw, 300px); height: 70px; margin: 0 auto; }
  .rs-test .rs-title-img { width: 100%; }
  .rs-test .rs-head h2 { top: 36px; font-size: 28px; }
  .test-intro { position: relative; top: auto; left: auto; width: 100%; margin: 42px 0 26px; font-size: 13px; line-height: 1.9; }
  .test-photos { position: relative; top: auto; left: auto; width: 100%; height: auto; }
  .test-photos .tp-window, .test-photos .tp-track, .test-photos .tp-slide { height: auto; }
  .test-photos .tp-slide img { height: auto; }
  .test-pagination { position: static; flex-direction: row; justify-content: center; gap: 12px; width: auto; padding: 0; margin-top: 14px; background: transparent; box-shadow: none; }
  .test-pagination button { width: 34px; height: 34px; font-size: 11px; }
  .test-service-img { position: relative; top: auto; left: auto; display: block; width: min(76vw, 360px); margin: 50px 0 0; }
  .test-service-visual, .test-service-line, .test-service-microscope { display: none; }
  .test-service-copy { position: relative; top: auto; left: auto; margin: -190px 0 145px 47%; }
  .test-service-copy h3 { font-size: 19px; }
  .test-service-copy p { margin-top: 5px; font-size: 10px; }
  .test-phone { position: relative; top: auto; left: auto; width: max-content; margin: 0 auto; }
  .test-phone strong { font-size: 22px; }
  .test-phone span { margin-top: 6px; font-size: 10px; }
  .test-action { position: relative; top: auto; left: auto; width: 132px; height: 32px; margin: 24px auto 0; font-size: 12px; gap: 28px; }
  .test-action-arrow { font-size: 20px; }
  .test-footnote { position: relative; top: auto; left: auto; width: 100%; margin: 42px 0 0; font-size: 11px; line-height: 1.9; }

  .rs-coop { height: auto; max-height: none; min-height: 620px; padding: 54px 0 64px; background-size: cover; }
  .rs-coop .rs-head { position: relative; top: auto; left: auto; height: 78px; }
  .rs-coop .rs-title-img { width: min(85vw, 350px); }
  .rs-coop .rs-head h2 { top: 40px; font-size: 29px; }
  .coop-carousel {
    --coop-main-width: 78vw;
    --coop-main-half: 39vw;
    --coop-side-1-width: 66vw;
    --coop-side-2-width: 55vw;
    --coop-side-1-exposure: 19vw;
    --coop-side-2-exposure: 41vw;
    position: relative; top: auto; left: auto; right: auto; height: 68vw; min-height: 260px; margin-top: 36px;
  }
  .coop-slide { width: 78vw; }
  .coop-slide > img { height: auto; }
  .coop-slide.pos-center { left: 50%; width: var(--coop-main-width); height: auto; transform: translateX(-50%); }
  .coop-slide.pos-left-1, .coop-slide.pos-right-1 { top: 8vw; width: 66vw; }
  .coop-slide.pos-left-2, .coop-slide.pos-right-2 { top: 13vw; width: 55vw; }
  .coop-arrow { top: calc(100% + 12px); width: 38px; height: 38px; }
  .coop-prev { left: calc(50% - 47px); }
  .coop-next { left: calc(50% + 9px); }
  .coop-dots { top: calc(100% + 62px); gap: 10px; }
  .coop-dots button { width: 8px; height: 8px; }

  .rs-product { padding: 54px 0 54px; }
  .rs-product .rs-head { height: 118px; }
  .rs-product .rs-title-img { width: min(58vw, 260px); }
  .rs-product .rs-head::after { top: 43px; font-size: 25px; }
  .product-grid { width: calc(100% - 36px); gap: 10px 8px; }
  .product-item .pi-name { font-size: 11px; }

  .transition { height: 34vw; min-height: 140px; max-height: none; }
  .transition-copy { left: 65.5%; }
  .transition-copy strong { font-size: 20px; letter-spacing: 1px; }
  .transition-copy span { margin-top: 5px; font-size: 6px; }
}

/* ═══════════════════ 全站自适应布局规范 ═══════════════════
   页面布局不再依赖固定像素尺寸；细边框、阴影与素材的原始像素不受此层影响。 */
:root {
  --page-gutter: clamp(1rem, 2.083vw, 2.5rem);
  --content-width: min(62.5vw, 75rem);
  --space-1: clamp(.375rem, .625vw, .75rem);
  --space-2: clamp(.75rem, 1.25vw, 1.5rem);
  --space-3: clamp(1rem, 2.083vw, 2.5rem);
  --space-4: clamp(1.5rem, 3.125vw, 3.75rem);
  --control-size: clamp(2.25rem, 2.917vw, 3.5rem);
  --nav-h: clamp(3.25rem, 4.479vw, 5.375rem);
}

html, body, #app { max-width: 100%; overflow-x: clip; }
.container { width: var(--content-width); max-width: calc(100% - var(--page-gutter) - var(--page-gutter)); }

/* 全局导航、横幅、页脚 */
.nav-inner { padding-inline: var(--page-gutter); }
.nav-logo img { height: clamp(2rem, 2.292vw, 2.75rem); }
.nav-menu, .nav-item > a { gap: var(--space-1); }
.nav-item > a { padding: var(--space-1) var(--space-2); font-size: clamp(.8125rem, .885vw, 1.0625rem); }
.sub-menu { min-width: min(10.5vw, 8.25rem); padding-block: var(--space-1); }
.sub-menu li a { padding: var(--space-1) var(--space-2); font-size: clamp(.75rem, .729vw, .875rem); }
/* 横幅/子页横幅高度随图片等比自适应，图片宽度 100% 时各父级高度与图片一致 */
.banner, .banner-track, .banner-slide, .sub-banner { height: auto; min-height: 0; max-height: none; }
.banner-slide img, .sub-banner img { display: block; width: 100%; height: auto; }
.banner-frame { width: min(37.708vw, 45.25rem); max-width: calc(100% - var(--page-gutter) - var(--page-gutter)); padding: var(--space-4) clamp(1.25rem, 2.917vw, 3.5rem); }
.banner-btn img { height: clamp(2rem, 2.083vw, 2.5rem); }
.banner-arrow { width: var(--control-size); height: var(--control-size); font-size: clamp(1.25rem, 1.771vw, 2.125rem); }
.banner-arrow.prev { left: var(--space-2); }
.banner-arrow.next { right: var(--space-2); }
.banner-dots { bottom: var(--space-3); gap: var(--space-1); }
.footer-inner { width: 80%; grid-template-columns: minmax(0, 1.1fr) minmax(0, 2fr) minmax(5rem, .45fr); gap: var(--space-4); padding: var(--space-3) var(--page-gutter) clamp(3rem, 3.125vw, 3.75rem); }
.footer-nav { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--space-2); }
.footer-bottom { height: clamp(2rem, 1.979vw, 2.375rem); line-height: clamp(2rem, 1.979vw, 2.375rem); padding-inline: var(--page-gutter); }

/* 首页、关于我们、健康管理、科研创新、新闻与联系页主布局 */
.mod-brand, .mod-exp, .mod-honor, .mod-news,
.about-brand, .about-honor, .health-concept, .health-mgmt,
.health-collab, .health-expert, .health-feedback { min-height: 0; }
.brand-grid, .exp-grid, .honor-grid, .news-grid, .collab-grid { gap: var(--space-3); }
/* news-grid 间隙改为卡片变量值，须位于批量 gap 之后才生效（移动端由下方 max-width 规则覆盖） */
.news-grid { gap: var(--news-card-gap); }
.brand-frame { min-height: clamp(8rem, 9.844vw, 11.8125rem); padding: var(--space-2); }
.brand-desc, .ab-desc, .dev-text, .tech-desc, .patent-desc, .test-intro, .test-footnote { font-size: clamp(.75rem, 1.042vw, 1.25rem); }
.sys-stage { max-width: calc(100% - var(--page-gutter) - var(--page-gutter)); }
.sys-node { width: min(15.625vw, 16.25rem); min-width: 0; }

.sys-dot-gif { width: clamp(1.5rem, 1.771vw, 2.125rem); height: clamp(1.5rem, 1.771vw, 2.125rem); }
.exp-card { width: min(16.458vw, 19.75rem); }
.exp-photo { height: min(25.104vw, 30.125rem); }
.honor-grid .honor-item img { max-width: 100%; height: auto; }
.about-honor, .health-concept, .health-mgmt, .health-collab, .health-expert, .health-feedback,
.rs-digi, .rs-patent, .rs-tech, .rs-test, .rs-coop { max-height: none; }
.flip-card { flex-basis: 25%; width: 25%; height: min(48.073vw, 57.688rem); }
.collab-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.collab-item { padding: var(--space-2); }
.collab-item .ci { flex-basis: clamp(2.5rem, 3.229vw, 3.875rem); height: clamp(2.5rem, 3.229vw, 3.875rem); }
.expert-tabs { width: min(63.6vw, 76.25rem); }
.ec-arrow img, .fb-prev img, .fb-next img { width: var(--control-size); height: auto; }
.feedback-video { width: min(60.48vw, 72.576rem); }
.rs-patent .rs-head, .rs-tech .rs-head, .rs-test .rs-head, .rs-coop .rs-head { max-width: calc(100% - var(--page-gutter) - var(--page-gutter)); }
.digi-grid, .digi-grid.second, .product-grid, .news-page-inner, .contact-info-bar, .contact-form-wrap { max-width: calc(100% - var(--page-gutter) - var(--page-gutter)); }
.contact-page, .contact-content { min-height: 0; }
.contact-form .cf-field input, .contact-form .cf-field textarea { font-size: clamp(.75rem, 1.042vw, 1.25rem); }
.transition { min-height: 0; }

/* 平板：从绝对坐标构图切换为宽度受控的流式布局。 */
@media (max-width: 74.9375rem) {
  :root { --content-width: min(92vw, 72rem); --nav-h: clamp(3.75rem, 7vw, 5.25rem); }
  /* 桌面端 footer-inner 放大到 80% 后，在平板/移动端恢复为常规内容宽度 */
  .footer-inner { width: var(--content-width); }
  .mod-brand, .mod-exp, .mod-honor, .mod-news, .about-brand, .about-honor,
  .health-concept, .health-mgmt, .health-collab, .health-feedback,
  .rs-digi, .rs-patent, .rs-tech, .rs-test, .rs-coop, .contact-page { height: auto; }
  .mod-brand, .about-brand, .health-concept, .health-mgmt, .health-collab, .health-feedback,
  .rs-patent, .rs-tech, .rs-test, .rs-coop { padding: var(--space-4) var(--page-gutter); background-size: cover; }
  .mod-brand .brand-grid, .about-brand .ab-left, .about-brand .ab-right,
  .rs-patent .rs-head, .patent-desc, .rs-tech .rs-head, .tech-desc,
  .rs-test .rs-head, .test-intro, .test-photos, .test-service-img,
  .test-service-copy, .test-phone, .test-action, .test-footnote,
  .rs-coop .rs-head, .coop-carousel { position: relative; inset: auto; left: auto; right: auto; top: auto; width: 100%; max-width: var(--content-width); margin-inline: auto; }
  .mod-brand .brand-grid, .about-brand { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; }
  .mod-brand .brand-text, .mod-brand .brand-points, .about-brand .ab-left, .about-brand .ab-right { width: auto; margin: 0; padding: 0; }
  .about-brand { gap: var(--space-4); }
  .rs-patent .rs-head, .rs-tech .rs-head, .rs-test .rs-head, .rs-coop .rs-head { height: auto; text-align: center; }
  .rs-patent .rs-head h2, .rs-tech .rs-head h2, .rs-test .rs-head h2, .rs-coop .rs-head h2 { position: relative; top: auto; left: auto; right: auto; margin-top: calc(var(--space-1) * -1); }
  .patent-desc, .tech-desc, .test-intro, .test-footnote { margin-top: var(--space-4); }
  .test-photos, .test-service-img { margin-top: var(--space-3); }
  .test-service-copy, .test-phone, .test-action { margin-top: var(--space-2); }
  .coop-carousel { height: min(52vw, 39rem); margin-top: var(--space-3); }
  .contact-content, .contact-page { display: block; }
  .contact-head, .contact-message-head, .contact-info-bar, .contact-form-wrap, .contact-notice { position: relative; inset: auto; width: var(--content-width); max-width: calc(100% - var(--page-gutter) - var(--page-gutter)); height: auto; margin: var(--space-3) auto; }
  .contact-form-wrap { padding: var(--space-4); background-size: cover; }
  .contact-form, .contact-form .cf-row, .contact-form .cf-field, .contact-form .cf-submit { position: relative; inset: auto; }
  .contact-form .cf-row { margin-block: var(--space-2); }
  .contact-form .cf-field label { position: static; display: block; width: auto; margin-bottom: var(--space-1); }
  .contact-form .cf-submit { margin-top: var(--space-2); }
}

/* 移动端：所有页面统一为可换行、可滚动、无固定像素高度的单列布局。 */
@media (max-width: 47.9375rem) {
  :root { --page-gutter: clamp(.875rem, 4.615vw, 1.5rem); --content-width: calc(100% - var(--page-gutter) - var(--page-gutter)); --nav-h: clamp(3.5rem, 16.41vw, 4rem); }
  .nav-inner { padding-inline: var(--page-gutter); }
  .nav-menu { gap: 0; }
  .nav-burger { width: clamp(2.25rem, 10.256vw, 2.75rem); height: clamp(2.25rem, 10.256vw, 2.75rem); }
  .banner-slide, .sub-banner { height: auto; min-height: 0; }
  .banner-overlay { padding-top: 26vw; }
  .banner-frame { width: calc(100% - var(--page-gutter) - var(--page-gutter)); padding: var(--space-3); }
  .banner-frame h2 { font-size: clamp(1rem, 4.359vw, 1.375rem); }
  .banner-frame p { font-size: clamp(.6875rem, 3.077vw, .875rem); }
  .mod { padding-inline: var(--page-gutter); }
  .container { width: var(--content-width); max-width: none; }
  .mod-brand .brand-grid, .about-brand { grid-template-columns: 1fr; width: 100%; }
  .brand-grid, .exp-grid, .honor-grid, .news-grid, .mgmt-cards, .collab-grid { gap: var(--space-2); }
  .sys-stage { width: 100%; }
  /* 移动端圆环与地球图仍共用同一尺寸，避免地球图过度放大后溢出文字区 */
  .mod-sys { --sys-globe-size: min(96vw, 31rem); }
  .sys-node { width: min(38vw, 10rem); }
  .sys-node span, .sys-node::after { display: none; }
  .sys-node.n3 .sys-node-copy, .sys-node.n4 .sys-node-copy { margin-left: 0; }
  .sys-node .sys-dot-gif { position: static; transform: scale(2.25); }
  .exp-card { width: min(82vw, 20rem); }
  .exp-photo { height: min(90vw, 28rem); }
  .honor-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); display: grid; }
  .honor-grid .honor-item img { width: 100%; height: auto; }
  .flip-card { flex: 0 0 100%; width: 100%; height: min(120vw, 36rem); }
  .collab-grid { grid-template-columns: 1fr; }
  .expert-tabs { width: 100%; }
  .expert-tabs span { white-space: normal; }
  .feedback-video { width: 100%; }
  .video-frame { border-radius: clamp(1rem, 5.128vw, 2rem); }
  .fb-prev { left: calc(0rem - var(--page-gutter)); }
  .fb-next { right: calc(0rem - var(--page-gutter)); }
  .digi-grid, .digi-grid.second { flex-direction: column; width: 100%; gap: var(--space-2); }
  .digi-card.v, .digi-card.h, .digi-grid.second .digi-card.h:nth-child(2) { flex-basis: auto; width: 100%; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); width: 100%; gap: var(--space-1); }
  .coop-carousel { height: min(72vw, 28rem); }
  .coop-arrow { width: var(--control-size); height: var(--control-size); }
  .news-page-inner, .news-list { grid-template-columns: 1fr; }
  .news-tabs { overflow-x: auto; }
  .news-tab { min-width: max-content; }
  .footer-inner { grid-template-columns: 1fr; gap: var(--space-3); padding-inline: var(--page-gutter); }
  .footer-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-qr { justify-self: start; }
  .footer-bottom { position: relative; text-align: center; }
  .transition { height: 34vw; }
  .transition-copy strong { font-size: clamp(1.125rem, 5.128vw, 1.5rem); }
  .transition-copy span { font-size: clamp(.375rem, 1.538vw, .5rem); }
}