/* 凯美科官网原型 · 共用样式
   规范：深蓝 #0C447C / #185FA5 + 浅灰 #F4F5F7 + 白；圆角 8px；无渐变、无装饰动效 */

:root {
  --blue-900: #0C447C;
  --blue-700: #185FA5;
  --gray-bg: #F4F5F7;
  --text: #2C2C2A;
  --text-sub: #6B7280;
  --line: #E3E6EA;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  background: #fff;
}

a { color: var(--blue-700); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* 原型提示条 */
.topbar {
  background: var(--blue-900);
  color: #fff;
  font-size: 13px;
  padding: 6px 0;
  text-align: center;
}
.topbar span { opacity: .85; }

/* 顶部导航 */
.header {
  position: sticky; top: 0; z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; gap: 32px;
  height: 96px;
}
.logo { display: flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 700; color: var(--blue-900); }
.logo small { display: block; font-size: 12px; font-weight: 400; color: var(--text-sub); letter-spacing: .5px; }
.logo img { height: 84px; width: auto; display: block; }
.nav { display: flex; gap: 4px; margin-left: auto; }
.nav a {
  display: block; padding: 8px 14px; border-radius: var(--radius);
  color: var(--text); font-size: 15px;
}
.nav a:hover { background: var(--gray-bg); text-decoration: none; }
.nav a.active { color: var(--blue-900); font-weight: 600; background: var(--gray-bg); }

/* 导航下拉菜单（hover 展开） */
.nav-item { position: relative; }
.nav-item > a { display: block; padding: 8px 14px; border-radius: var(--radius); color: var(--text); font-size: 15px; }
.nav-item > a:hover { background: var(--gray-bg); text-decoration: none; }
.nav-item.active > a { color: var(--blue-900); font-weight: 600; background: var(--gray-bg); }
.nav-item.has-dropdown > a::after { content: "\25BE"; font-size: 11px; margin-left: 5px; color: var(--text-sub); }
.nav-dropdown {
  position: absolute; top: 100%; left: 0; min-width: 248px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(12, 68, 124, .14);
  padding: 6px; display: none; z-index: 60;
}
.nav-item:hover .nav-dropdown { display: block; }
.nav-dropdown a {
  display: block; padding: 9px 14px; border-radius: 6px;
  font-size: 14px; color: var(--text); white-space: nowrap;
}
.nav-dropdown a:hover { background: var(--gray-bg); text-decoration: none; color: var(--blue-900); }
.header-cta { margin-left: 12px; }

/* 按钮 */
.btn {
  display: inline-block; padding: 10px 20px; border-radius: var(--radius);
  font-size: 15px; border: 1px solid transparent; cursor: pointer;
  white-space: nowrap;
}
.btn-primary { background: var(--blue-900); color: #fff; }
.btn-primary:hover { background: #0a3a68; text-decoration: none; }
.btn-ghost { border-color: var(--blue-700); color: var(--blue-700); background: #fff; }
.btn-ghost:hover { background: var(--gray-bg); text-decoration: none; }
/* 技术专题按钮：琥珀金底 + 深藏青字（暖色点缀，用于专题/资料类入口，全站仅少量使用） */
.btn.btn-topic {
  display: inline-flex; align-items: center; gap: 8px;
  background: #F0B03C; border-color: #DFA22B; color: #123A5E; font-weight: 600;
}
.btn.btn-topic svg { flex: none; }
.btn.btn-topic:hover { background: #E7A62F; border-color: #D2951F; color: #0C2B45; text-decoration: none; }

/* 板块 */
.section { padding: 72px 0; }
.section-alt { background: var(--gray-bg); }
.section-head { max-width: 100%; margin-bottom: 36px; }
.section-title { font-size: 24px; line-height: 1.3; margin: 0 0 10px; color: var(--blue-900); }
.section-desc { color: var(--text-sub); margin: 0; font-size: 15px; }
.eyebrow { font-size: 13px; letter-spacing: 1px; color: var(--blue-700); margin: 0 0 8px; }

/* 首页技术服务整块背景：纯 CSS 深蓝渐变 + 低透明度点阵纹理（不依赖图片，零请求） */
/* 化学六方晶格（苯环蜂巢）纹理：内联 SVG 低透明度白描边，零图片请求 */
.services-banner { position: relative; overflow: hidden; background: radial-gradient(circle at 82% 12%, rgba(255,255,255,.12), transparent 46%), linear-gradient(135deg, #0C447C 0%, #185FA5 100%); }
.services-banner::before { content: ""; position: absolute; inset: 0; background-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2228%22%20height%3D%2249%22%20viewBox%3D%220%200%2028%2049%22%3E%3Cg%20fill%3D%22%23ffffff%22%20fill-opacity%3D%220.13%22%3E%3Cpath%20d%3D%22M13.99%209.25l13%207.5v15l-13%207.5L1%2031.75v-15l12.99-7.5zM3%2017.9v12.7l10.99%206.34%2011-6.35V17.9l-11-6.34L3%2017.9zM0%2015l12.98-7.5V0h-2v6.35L0%2012.69v2.3zm0%2018.5L12.98%2041v8h-2v-6.85L0%2035.81v-2.3zM15%200v7.5L27.99%2015H28v-2.31h-.01L17%206.35V0h-2zm0%2049v-8l12.99-7.5H28v2.31h-.01L17%2042.15V49h-2z%22%2F%3E%3C%2Fg%3E%3C%2Fsvg%3E"); background-size: 28px 49px; }
.services-banner::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,46,86,.40) 0%, rgba(8,46,86,0) 62%); }

/* 首页咨询转化区：与技术服务栏同款化学六方晶格背景 */
.consult-banner { position: relative; overflow: hidden; background: radial-gradient(circle at 80% 16%, rgba(255,255,255,.10), transparent 48%), linear-gradient(135deg, #0C447C 0%, #185FA5 100%); }
.consult-banner::before { content: ""; position: absolute; inset: 0; background-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2228%22%20height%3D%2249%22%20viewBox%3D%220%200%2028%2049%22%3E%3Cg%20fill%3D%22%23ffffff%22%20fill-opacity%3D%220.13%22%3E%3Cpath%20d%3D%22M13.99%209.25l13%207.5v15l-13%207.5L1%2031.75v-15l12.99-7.5zM3%2017.9v12.7l10.99%206.34%2011-6.35V17.9l-11-6.34L3%2017.9zM0%2015l12.98-7.5V0h-2v6.35L0%2012.69v2.3zm0%2018.5L12.98%2041v8h-2v-6.85L0%2035.81v-2.3zM15%200v7.5L27.99%2015H28v-2.31h-.01L17%206.35V0h-2zm0%2049v-8l12.99-7.5H28v2.31h-.01L17%2042.15V49h-2z%22%2F%3E%3C%2Fg%3E%3C%2Fsvg%3E"); background-size: 28px 49px; }
.consult-banner::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,46,86,.40) 0%, rgba(8,46,86,0) 62%); }
.consult-banner .wrap { position: relative; z-index: 2; }
.consult-banner .section-title { color: #fff; font-size: 30px; line-height: 1.25; margin: 0 0 16px; }
.consult-banner .section-desc { color: #D7E4F0; font-size: 16px; line-height: 1.95; margin: 0 0 14px; }
.consult-banner .card-list { color: #EAF1F8; }
.services-banner .ph-sectionbg {
  position: absolute; inset: 0; margin: 0; display: flex; align-items: center; justify-content: center; text-align: center;
  background: #2E5E8A; border: 1px dashed rgba(255, 255, 255, 0.55); color: rgba(255, 255, 255, 0.92); font-size: 14px;
}
.services-banner .wrap { position: relative; z-index: 2; }
.services-banner .eyebrow { color: #A9C6E4; }
.services-banner .section-title { color: #fff; }
.services-banner .section-desc { color: #D7E4F0; }

/* 技术服务页：三项服务各用不同蓝色调区分，纯 CSS 实色 + 化学六方晶格纹理（零图片请求，不需要背景照片） */
.svc-banner { position: relative; overflow: hidden; }
.svc-banner::before { content: ""; position: absolute; inset: 0; background-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2228%22%20height%3D%2249%22%20viewBox%3D%220%200%2028%2049%22%3E%3Cg%20fill%3D%22%23ffffff%22%20fill-opacity%3D%220.13%22%3E%3Cpath%20d%3D%22M13.99%209.25l13%207.5v15l-13%207.5L1%2031.75v-15l12.99-7.5zM3%2017.9v12.7l10.99%206.34%2011-6.35V17.9l-11-6.34L3%2017.9zM0%2015l12.98-7.5V0h-2v6.35L0%2012.69v2.3zm0%2018.5L12.98%2041v8h-2v-6.85L0%2035.81v-2.3zM15%200v7.5L27.99%2015H28v-2.31h-.01L17%206.35V0h-2zm0%2049v-8l12.99-7.5H28v2.31h-.01L17%2042.15V49h-2z%22%2F%3E%3C%2Fg%3E%3C%2Fsvg%3E"); background-size: 28px 49px; }
.svc-banner--1 { background: #0C447C; }
.svc-banner--2 { background: #185FA5; }
.svc-banner--3 { background: #3E7FC0; }
.svc-banner .wrap { position: relative; z-index: 2; }
.svc-banner .eyebrow { color: #A9C6E4; }
.svc-banner .section-title { color: #fff; }
.svc-banner .section-desc { color: #D7E4F0; }
.svc-num { position: absolute; right: 16px; bottom: -14px; font-size: 132px; font-weight: 800; line-height: 1; color: rgba(255, 255, 255, 0.10); z-index: 1; pointer-events: none; letter-spacing: -3px; }
.svc-panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
@media (max-width: 700px) { .svc-num { display: none; } }

/* Hero */
.hero { background: var(--gray-bg); padding: 64px 0; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.hero h1 { font-size: 36px; line-height: 1.3; margin: 0 0 16px; color: var(--blue-900); }
.hero p { font-size: 17px; color: var(--text-sub); margin: 0 0 28px; }
.hero-actions { display: flex; gap: 12px; }

/* 信任背书条 */
.trust { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 32px 0; }
.trust-item { text-align: center; }
.trust-num { font-size: 30px; font-weight: 700; color: var(--blue-900); line-height: 1.2; }
.trust-label { font-size: 14px; color: var(--text-sub); margin-top: 6px; }

/* 卡片 */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
/* 两卡并排：用于某板块只有 2 张卡时，避免 3 列布局留空（保留窄屏响应式） */
.grid-pair { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
@media (max-width: 700px) { .grid-pair { grid-template-columns: 1fr; } }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; display: flex; flex-direction: column; gap: 10px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 14px 30px rgba(12, 68, 124, .12); border-color: #c9d6e4; }
.card h3 { margin: 0; font-size: 18px; color: var(--blue-900); }
.card p { margin: 0; font-size: 14px; color: var(--text-sub); }
.card-list { margin: 0; padding-left: 18px; font-size: 14px; color: var(--text-sub); }
.feat-points { list-style: none; margin: 0; padding: 0; }
.feat-points li { position: relative; padding: 7px 0 7px 18px; font-size: 14px; line-height: 1.6; color: var(--text-sub); border-bottom: 1px dashed var(--line); }
.feat-points li:last-child { border-bottom: 0; padding-bottom: 0; }
.feat-points li::before { content: ""; position: absolute; left: 2px; top: 14px; width: 5px; height: 5px; border-radius: 50%; background: var(--blue-700); }
.card-foot { margin-top: auto; padding-top: 8px; font-size: 14px; }

.tag {
  display: inline-block; padding: 3px 10px; font-size: 12px;
  background: var(--gray-bg); color: var(--text-sub); border-radius: 4px;
}
.tag-blue { background: #E8F0F8; color: var(--blue-900); }
/* 标签行：把相邻的小分类标签收在一行内（卡片为 flex 列，单个 span 会各占一行） */
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 0; }
.tag-row .tag { margin: 0; }

/* SES 应用优势：双栏（科研 / 教学）要点清单 */
.adv-cols{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;margin-top:24px;align-items:stretch;}
.adv-side{display:flex;flex-direction:column;gap:24px;}
.adv-col{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;transition:box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column;}
.adv-col:hover{box-shadow:0 10px 26px rgba(12,68,124,.08);border-color:#c9d6e4;}
.adv-col-title{display:flex;align-items:center;gap:9px;margin:0 0 14px;font-size:17px;color:var(--blue-900);}
.adv-col-title::before{content:"";width:6px;height:18px;border-radius:3px;background:var(--blue-700);}
.adv-list{list-style:none;margin:0;padding:0;flex:1;display:flex;flex-direction:column;justify-content:space-between;}
.adv-list li{padding:11px 0;border-bottom:1px dashed var(--line);}
.adv-list li:last-child{border-bottom:0;padding-bottom:0;}
.adv-list .adv-t{margin:0 0 5px;font-size:14.5px;font-weight:600;color:var(--blue-900);line-height:1.5;}
.adv-list .adv-d{margin:0;font-size:13.5px;color:var(--text);line-height:1.7;}
.adv-sub{list-style:none;margin:9px 0 2px;padding:0;}
.adv-sub li{position:relative;padding:5px 0 5px 16px;font-size:13px;color:var(--text);line-height:1.65;}
.adv-sub li::before{content:"";position:absolute;left:2px;top:11px;width:5px;height:5px;border-radius:50%;background:var(--blue-700);}
@media(max-width:760px){.adv-cols{grid-template-columns:1fr;}}

/* 占位图件 */
.ph {
  background: var(--gray-bg);
  border: 1px dashed var(--blue-700);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-sub); font-size: 13px; text-align: center;
  padding: 8px; width: 100%;
}
.ph-hero { aspect-ratio: 1920 / 640; }
.ph-cover { aspect-ratio: 16 / 9; }
/* 产品列表卡 / 首页矩阵封面（16:9 = 800×450，与主页一致） */
img.ph-cover { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--radius); margin-bottom: 6px; }
/* 产品详情页头图（800×500 = 8:5） */
.ph-cover-detail { aspect-ratio: 8 / 5; }
img.ph-cover-detail { display: block; width: 100%; height: auto; aspect-ratio: 8 / 5; object-fit: cover; border-radius: var(--radius); margin-bottom: 6px; }
.card-cover { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--radius); margin-bottom: 6px; }
.ph-shot { aspect-ratio: 16 / 9; }
.ph-case { aspect-ratio: 1200 / 630; }
img.ph-case { display: block; width: 100%; aspect-ratio: 1200 / 630; object-fit: cover; border-radius: var(--radius); margin-bottom: 14px; }
video.ph-case { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--radius); margin-bottom: 14px; background: #000; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
@media (max-width: 700px){ .grid-2 { grid-template-columns: 1fr; } }
.ph-qr { aspect-ratio: 1 / 1; width: 120px; }
/* 实拍二维码（已替换占位） */
.qr-img { width: 140px; height: 140px; object-fit: contain; border-radius: var(--radius); border: 1px solid var(--line); background: #fff; flex: 0 0 auto; }
.footer-qr { width: 116px; height: 116px; object-fit: contain; border-radius: 8px; background: #fff; padding: 6px; flex: 0 0 auto; }
.footer-qr-box { display: flex; flex-direction: column; align-items: center; gap: 10px; flex: 0 0 auto; }
.footer-qr-cap { margin: 0; font-size: 12px; line-height: 1.65; text-align: center; color: #dbe6f0; opacity: .85; }
.footer-qr-cap span { color: #fff; font-weight: 600; }
.ph-icon { width: 48px; height: 48px; }
.ph-inline { height: 200px; }

/* 界面截图画廊：左右拖动 / 箭头切换查看大图 */
.gallery { position: relative; }
.gallery-viewport {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}
.gallery-track {
  display: flex;
  cursor: grab;
  transition: transform .38s ease;
  touch-action: pan-y;
}
.gallery-track.dragging { transition: none; cursor: grabbing; }
.gallery-item {
  flex: 0 0 100%;
  margin: 0;
  user-select: none;
}
.gallery-item img {
  display: block;
  width: 100%;
  height: 56vw;
  max-height: 660px;
  min-height: 260px;
  object-fit: contain;
  background: #fff;
  -webkit-user-drag: none;
}
.gallery-item figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  background: var(--gray-bg);
  font-size: 14px;
  color: var(--text-sub);
  text-align: center;
}
.gallery-num { color: var(--blue-700); font-weight: 600; margin-right: 8px; }
.gallery-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 50%;
  background: rgba(12, 68, 124, .62);
  color: #fff;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transition: background-color .2s ease;
}
.gallery-arrow:hover { background: rgba(12, 68, 124, .88); }
.gallery-arrow.prev { left: 14px; }
.gallery-arrow.next { right: 14px; }
.gallery-arrow:focus-visible { outline: 2px solid var(--blue-700); outline-offset: 2px; }
.gallery-dots {
  display: flex;
  justify-content: center;
  gap: 9px;
  margin-top: 14px;
}
.gallery-dots button {
  width: 9px;
  height: 9px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: var(--line);
  cursor: pointer;
  transition: background-color .2s ease;
}
.gallery-dots button.on { background: var(--blue-700); }
@media (max-width: 720px) {
  .gallery-item img { height: 62vw; max-height: 420px; }
  .gallery-arrow { width: 34px; height: 34px; font-size: 20px; }
}

/* 核心功能小图标容器：固定高度 + 居中，图标按原尺寸显示不拉伸 */
.feat-ico {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 72px;
  margin-bottom: 12px;
}
.feat-ico img { display: block; width: auto; height: auto; max-height: 68px; }

/* 产品线标题背景图区块 */
.line-head {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--blue-900);
  margin-bottom: 28px;
  padding: 34px 32px;
  min-height: 200px;
  display: flex;
  align-items: center;
}
.line-head::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg,
    rgba(12, 68, 124, 0.78) 0%,
    rgba(12, 68, 124, 0.60) 38%,
    rgba(12, 68, 124, 0.22) 75%,
    rgba(12, 68, 124, 0.16) 100%);
}
.line-head .ph-linebg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  border: 1px dashed rgba(255, 255, 255, 0.55);
  border-radius: 0;
  background: #2E5E8A;
  color: rgba(255, 255, 255, 0.92);
  font-size: 13px;
  align-items: center;
}
.line-head .linebg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.line-head-inner { position: relative; z-index: 2; max-width: 720px; }
.line-head .eyebrow { color: #A9C6E4; }
.line-head .section-title { color: #fff; margin: 0 0 8px; }
.line-head .section-desc { color: #D7E4F0; font-size: 15px; }

/* 流程步骤 */
.flow { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.flow-step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.flow-step .num { width: 26px; height: 26px; border-radius: 50%; background: var(--blue-900); color: #fff; font-size: 13px; display: flex; align-items: center; justify-content: center; margin-bottom: 10px; }
.flow-step h4 { margin: 0 0 6px; font-size: 15px; color: var(--blue-900); }
.flow-step p { margin: 0; font-size: 13px; color: var(--text-sub); }

/* 面包屑 */
.breadcrumb { font-size: 13px; color: var(--text-sub); padding: 20px 0 0; }
.breadcrumb a { color: var(--text-sub); }

/* 案例 / 文章详情页正文排版 */
.article { max-width: 760px; margin: 0 auto; }
.article p { font-size: 16px; line-height: 1.95; color: var(--text); margin: 0 0 18px; }
.article h2 { font-size: 22px; color: var(--blue-900); margin: 38px 0 14px; padding-bottom: 8px; border-bottom: 1px solid var(--line); }
.article h1 { font-size: 22px; line-height: 1.5; color: var(--blue-900); margin: 34px 0 14px; font-weight: 700; }
.article h4 { font-size: 16px; color: var(--blue-900); margin: 22px 0 8px; }
.article h3 { font-size: 18px; color: var(--blue-900); margin: 28px 0 10px; }
.article .lead { font-size: 17px; line-height: 1.9; color: var(--text-sub); }
.article ul, .article ol { font-size: 16px; line-height: 1.95; padding-left: 22px; margin: 0 0 18px; }
.article li { margin-bottom: 8px; }
.article sup { font-size: 12px; color: var(--blue-900); }
.article .callout { background: var(--gray-bg); border-left: 3px solid var(--blue-900); padding: 16px 20px; border-radius: var(--radius); margin: 0 0 22px; font-size: 15px; color: var(--text); }
.article .callout p { margin: 0; font-size: 15px; }
.article .endnote { margin-top: 40px; padding-top: 18px; border-top: 1px dashed var(--line); }
.article .endnote p { margin: 0; font-size: 14.5px; line-height: 1.9; color: var(--text-sub); }
.article .mono-box { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: #F5F7FA; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; margin: 0 0 22px; font-size: 13.5px; line-height: 1.7; overflow-wrap: anywhere; word-break: break-all; }
.article .mono-box p { margin: 0 0 10px; font-size: 13.5px; line-height: 1.7; }
.article .mono-box p:last-child { margin-bottom: 0; }
.fig { margin: 26px 0; }
.figbox { display: flex; align-items: center; justify-content: center; aspect-ratio: 16 / 9; border: 1px dashed var(--line); border-radius: var(--radius); background: var(--gray-bg); color: var(--text-sub); font-size: 14px; text-align: center; padding: 12px; }
.figimg.fig-portrait { max-width: 520px; }
.figimg { display: block; max-width: 100%; height: auto; margin: 0 auto; border: 1px solid var(--line); border-radius: var(--radius); }
.fig figcaption { font-size: 13px; color: var(--text-sub); text-align: center; margin-top: 8px; }
.fig video { display: block; width: 100%; height: auto; margin: 0 auto; background: #000; border-radius: var(--radius); }
.article img { max-width: 100%; height: auto; }
.article table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 22px 0; }
.article table td, .article table th { border: 1px solid var(--line); padding: 8px 10px; vertical-align: top; }
.article table img { max-width: 100%; height: auto; }
.article-meta { font-size: 14px; color: var(--text-sub); margin: 0 0 18px; }
.article-meta span { margin-right: 14px; }

/* 表格 */
.table { width: 100%; border-collapse: collapse; font-size: 15px; }
.table th, .table td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; }
.table th { background: var(--gray-bg); font-weight: 600; color: var(--blue-900); }

/* 表单 */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 14px; color: var(--text-sub); }
.field input, .field select, .field textarea {
  border: 1px solid var(--line); border-radius: 6px; padding: 10px 12px; font-size: 15px;
  font-family: inherit; color: var(--text); background: #fff;
}

/* 页脚 */
.footer { background: var(--blue-900); color: #dbe6f0; padding: 48px 0 24px; margin-top: 0; }
.footer a { color: #dbe6f0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; }
.footer h4 { color: #fff; font-size: 15px; margin: 0 0 12px; }
.footer ul { list-style: none; margin: 0; padding: 0; font-size: 14px; }
.footer li { margin-bottom: 8px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.15); margin-top: 32px; padding-top: 16px; font-size: 13px; opacity: .8; }

/* 提示 */
.notice {
  background: #fff; border: 1px solid var(--line); border-left: 3px solid var(--blue-700);
  border-radius: var(--radius); padding: 14px 18px; font-size: 14px; color: var(--text-sub);
}

/* 首页 Banner 轮播 */
.slider { position: relative; overflow: hidden; background: var(--blue-900); }
.slider-track { display: flex; transition: transform .45s ease; }
.slide { position: relative; flex: 0 0 100%; height: clamp(300px, 33.3vw, 640px); background: var(--blue-900); overflow: hidden; }
.slide-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.slide .ph {
  position: absolute; inset: 0; border-radius: 0; height: 100%;
  background: rgba(255,255,255,.05);
  border: 2px dashed rgba(255,255,255,.45);
  color: #CFE0EF; font-size: 14px; align-items: flex-start; justify-content: flex-start;
  padding: 20px 24px; text-align: left;
}
.slide-cap {
  position: absolute; left: 0; right: 0; top: 0; bottom: 0;
  display: flex; align-items: flex-end;
  padding-bottom: 56px;
  /* 与 Banner 同宽，从左到右由深蓝渐透明，与图片自然融合 */
  background: linear-gradient(90deg,
    rgba(8,46,86,.92) 0%,
    rgba(12,68,124,.82) 26%,
    rgba(12,68,124,.5) 52%,
    rgba(12,68,124,0) 82%);
}
.slide-cap-inner { max-width: 1200px; width: 100%; margin: 0 auto; padding: 0 24px; }
.slide-box { max-width: 620px; background: transparent; padding: 26px 30px; }
.slide-box h2 { margin: 0 0 8px; font-size: 27px; line-height: 1.35; color: #fff; text-shadow: 0 1px 10px rgba(0,0,0,.28); }
.slide-box.is-hero h2 { margin-bottom: 22px; }
.slide-box p { margin: 0 0 16px; font-size: 15px; color: #ffffff; text-shadow: 0 1px 8px rgba(0,0,0,.28); }
.slide-list { list-style: none; margin: 0 0 18px; padding: 0; max-width: 560px; }
.slide-list li { position: relative; padding-left: 17px; font-size: 14.5px; font-weight: 600; line-height: 1.95; color: #ffffff; text-shadow: 0 1px 8px rgba(0,0,0,.32); }
.slide-list li::before { content: ""; position: absolute; left: 0; top: 11px; width: 6px; height: 6px; border-radius: 50%; background: #6FA8DC; }
.slide-box .btn-primary { background: #fff; color: var(--blue-900); border-color: #fff; }
.slide-box .btn-primary:hover { background: #E6EFF8; }
.slide-box .btn-ghost { border-color: rgba(255,255,255,.85); color: #fff; background: transparent; }
.slide-box .btn-ghost:hover { background: rgba(255,255,255,.16); }
.slider-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
  width: 40px; height: 40px; border-radius: 50%; cursor: pointer;
  border: 1px solid rgba(255,255,255,.6); background: rgba(12,68,124,.35); color: #fff;
  font-size: 18px; line-height: 1;
}
.slider-arrow:hover { background: rgba(12,68,124,.75); }
.slider-arrow.prev { left: 16px; }
.slider-arrow.next { right: 16px; }
.slider-dots { position: absolute; left: 0; right: 0; bottom: 18px; z-index: 3; display: flex; justify-content: center; gap: 10px; }
.slider-dots button { width: 10px; height: 10px; padding: 0; border: none; border-radius: 50%; background: rgba(255,255,255,.45); cursor: pointer; }
.slider-dots button.on { background: #fff; }

/* 首页定位条 */
.intro-bar { padding: 48px 0 8px; text-align: center; }
.intro-bar h1 { font-size: 30px; line-height: 1.4; margin: 0 0 12px; color: var(--blue-900); }
.intro-bar p { max-width: 820px; margin: 0 auto; font-size: 16px; color: var(--text-sub); }
.card-foot-bar { margin-top: 20px; text-align: center; font-size: 14px; }

/* 培训中心 · 客户登录专区（v1.20 栏目暂时下线，样式预留，恢复时直接用） */
.gate { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 32px; align-items: start; }
.gate-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.gate-card h2 { margin: 0 0 8px; font-size: 20px; color: var(--blue-900); }
.gate-card .gate-sub { font-size: 14px; color: var(--text-sub); margin: 0 0 20px; }
.gate-form { display: flex; flex-direction: column; gap: 14px; }
.gate-form .btn { width: 100%; text-align: center; }
.gate-msg { font-size: 13px; color: #96530A; background: #FFF4E5; border-radius: 4px; padding: 8px 12px; display: none; }
.gate-help { margin-top: 16px; font-size: 13px; color: var(--text-sub); border-top: 1px dashed var(--line); padding-top: 14px; }
.gate-list { margin: 14px 0 0; padding-left: 18px; font-size: 14px; color: var(--text-sub); }
.member-bar { background: var(--blue-900); color: #fff; border-radius: var(--radius); padding: 16px 20px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.member-bar .who { font-size: 15px; font-weight: 600; }
.member-bar .meta { font-size: 13px; opacity: .8; margin-top: 4px; }
.member-grants { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.member-grants span { background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.28); border-radius: 4px; padding: 2px 8px; font-size: 12px; }
.member-bar .btn-ghost { background: transparent; border-color: rgba(255,255,255,.5); color: #fff; }
.member-bar .btn-ghost:hover { background: rgba(255,255,255,.12); }
.lock-card { background: var(--gray-bg); border: 1px dashed var(--blue-700); border-radius: var(--radius); padding: 28px; text-align: center; }
.lock-card .lock-icon { font-size: 22px; color: var(--blue-700); }
.lock-card h3 { margin: 8px 0 6px; font-size: 17px; color: var(--blue-900); }
.lock-card p { margin: 0 0 14px; font-size: 14px; color: var(--text-sub); }
.res-list { list-style: none; margin: 0; padding: 0; }
.res-list li { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--line); font-size: 14px; }
.res-list li:last-child { border-bottom: none; }
.res-list .res-meta { color: var(--text-sub); font-size: 13px; white-space: nowrap; }

/* 后台界面框架 */
.admin-body { background: var(--gray-bg); }
.admin-layout { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.admin-side { background: #fff; border-right: 1px solid var(--line); padding: 20px 0; }
.admin-side h2 { font-size: 15px; color: var(--blue-900); margin: 0 20px 18px; }
.admin-side a { display: block; padding: 9px 20px; font-size: 14px; color: var(--text); }
.admin-side a:hover { background: var(--gray-bg); text-decoration: none; }
.admin-side a.active { background: var(--gray-bg); color: var(--blue-900); font-weight: 600; border-left: 3px solid var(--blue-900); }
.admin-main { padding: 24px 28px; }
.admin-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.admin-head h1 { font-size: 22px; margin: 0; color: var(--blue-900); }
.admin-stat { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 20px; }
.stat-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.stat-card .k { font-size: 13px; color: var(--text-sub); }
.stat-card .v { font-size: 24px; font-weight: 700; color: var(--blue-900); }
.panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-bottom: 20px; }
.panel h3 { margin: 0 0 14px; font-size: 16px; color: var(--blue-900); }
.badge { display: inline-block; padding: 2px 8px; font-size: 12px; border-radius: 4px; background: var(--gray-bg); color: var(--text-sub); }
.badge-ok { background: #E6F4EA; color: #1E7A34; }
.badge-warn { background: #FFF4E5; color: #96530A; }
.editor { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.editor-bar { background: var(--gray-bg); border-bottom: 1px solid var(--line); padding: 8px 12px; font-size: 13px; color: var(--text-sub); }
.editor-body { padding: 16px; min-height: 160px; font-size: 15px; color: var(--text-sub); }

/* ===== 交互增强层（Redesign · Preserve：不改配色与版式，仅补按钮/悬停/动效反馈） ===== */

/* 按钮：统一 8px 圆角已在 .btn 基础类；此处加字重、过渡、悬停抬升、按下回弹、焦点环 */
.btn {
  font-weight: 600; letter-spacing: .3px;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease,
              transform .12s ease, box-shadow .2s ease;
}
.btn-primary { box-shadow: 0 1px 2px rgba(12, 68, 124, .18); }
.btn-primary:hover { background: #0a3a68; box-shadow: 0 6px 16px rgba(12, 68, 124, .28); transform: translateY(-1px); text-decoration: none; }
.btn-primary:active { transform: translateY(0); box-shadow: 0 1px 2px rgba(12, 68, 124, .30), inset 0 2px 4px rgba(0, 0, 0, .18); }
.btn-ghost:hover { background: var(--gray-bg); border-color: var(--blue-900); color: var(--blue-900); transform: translateY(-1px); text-decoration: none; }
.btn-ghost:active { transform: translateY(0); }
.btn:focus-visible { outline: 2px solid var(--blue-700); outline-offset: 3px; }

/* 顶部导航：悬停以品牌蓝下划线（从左展开）替代纯灰底；激活态仍用灰底区分 */
.nav a, .nav-item > a { position: relative; transition: color .2s ease, background-color .2s ease; }
.nav a::after, .nav-item > a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 2px;
  background: var(--blue-700); border-radius: 2px;
  transform: scaleX(0); transform-origin: left center; transition: transform .25s ease;
}
.nav a:hover, .nav-item > a:hover { color: var(--blue-900); text-decoration: none; }
.nav a:hover::after, .nav-item > a:hover::after { transform: scaleX(1); }

/* 卡片：悬停整体微抬升（已有）+ 封面图轻微放大（卡片裁切溢出，不上溢） */
.card { overflow: hidden; }
.card-cover { transition: transform .4s ease; }
.card:hover .card-cover { transform: scale(1.05); }

/* 卡片底部“查看详情 →”类链接：悬停右移 + 品牌色 */
.card-foot a, .card-foot-bar a {
  display: inline-block; transition: transform .2s ease, color .2s ease;
}
.card-foot a:hover, .card-foot-bar a:hover { transform: translateX(5px); color: var(--blue-900); text-decoration: none; }

/* 表单控件焦点态：品牌蓝描边 + 柔和环（非发光） */
.field input, .field select, .field textarea {
  border-radius: var(--radius);
  transition: border-color .2s ease, box-shadow .2s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--blue-700); box-shadow: 0 0 0 3px rgba(24, 95, 165, .15); outline: none;
}

/* 轮播箭头 / 圆点 反馈增强 */
.slider-arrow, .slider-dots button { transition: background-color .2s ease, transform .2s ease; }
.slider-dots button.on { transform: scale(1.15); }
.slider-dots button:hover { transform: scale(1.3); }
.slider-arrow:hover { background: rgba(12, 68, 124, .75); }

/* 滚动入场动画（仅在用户未要求减弱动效时启用，避免无 JS / 偏好减弱时内容隐藏） */
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
  .reveal { opacity: 0; transform: translateY(28px); transition: opacity .6s ease, transform .6s ease; }
  .reveal.in { opacity: 1; transform: none; }
}

/* 响应式 */
@media (max-width: 1000px) {
  .hero-grid, .grid-3, .grid-4, .grid-5, .trust, .flow, .footer-grid, .admin-layout { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 700px) {
  .hero-grid, .grid-3, .grid-4, .grid-5, .trust, .flow, .footer-grid, .form-grid, .admin-layout { grid-template-columns: 1fr; }
  .nav { flex-wrap: wrap; }
  .hero h1 { font-size: 28px; }
  .line-head { padding: 22px 18px; min-height: 160px; }
  .slide { height: clamp(220px, 52vw, 320px); }
  .slide .ph { font-size: 12px; padding: 12px 16px; }
  .slide-box { padding: 18px 20px; max-width: none; }
  .slide-box h2 { font-size: 19px; }
  .slide-box p { font-size: 14px; margin-bottom: 12px; }
  .slide-cap { padding-bottom: 44px; }
  .intro-bar { padding: 32px 0 0; }
  .intro-bar h1 { font-size: 24px; }
}

/* ===== 模块辐射式整合展示（SES 核心功能） =====
   语义：七个模块并列整合进套件，彼此非前后流程关系，故用【无箭头的辐射连线】表达归属。
   布局：SVG 画 7 条中心连线 + 节点绝对定位环绕。
   节点位置由各节点的 --dx/--dy 独立给出（非强制共圆，相邻模块半径微差 398~412px，
   肉眼几乎不可辨，但换来更大的卡片），整体按 --s 等比缩放以适配各档容器。
   卡片为 16:9 长矩形（原图即 16:9，零裁切完整展示）；--node-w 为卡宽。
   数值均为「不重叠前提下的最大值」，经 21 对包围盒穷举校验；各档容器宽已按断点下限核算（容器宽 ≤ 视口宽 − 48），不会溢出内容区。 */
.module-circle{position:relative;--s:1;--node-w:308px;width:1000px;max-width:100%;height:800px;margin:8px auto 0;}
.circle-links{position:absolute;inset:0;width:100%;height:100%;z-index:1;pointer-events:none;}
.spoke{stroke:#B7CCE3;stroke-width:4;stroke-linecap:round;transition:stroke .2s ease,stroke-width .2s ease;}
.spoke.is-active{stroke:var(--blue-700);stroke-width:5;marker-start:url(#hubArrowActive);}
/* 中心套件圆盘：斜向柔和渐变（全局唯一使用渐变的元素，作为视觉焦点）+ 双层同心光环 + 内嵌虚线细环 */
.circle-core{position:absolute;left:50%;top:50%;width:236px;height:236px;transform:translate(-50%,-50%);border:0;cursor:pointer;border-radius:50%;color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:28px;z-index:3;
  background:linear-gradient(145deg,#2C6FB4 0%,#185FA5 38%,#0C447C 100%);
  box-shadow:0 0 0 9px rgba(24,95,165,.10),0 0 0 20px rgba(24,95,165,.05),0 14px 34px rgba(12,68,124,.24);
  transition:transform .24s ease,box-shadow .24s ease;}
.circle-core::before{content:"";position:absolute;inset:12px;border:1px dashed rgba(255,255,255,.26);border-radius:50%;}
.circle-core:hover,.circle-core:focus-visible{transform:translate(-50%,-50%) scale(1.03);box-shadow:0 0 0 12px rgba(24,95,165,.13),0 0 0 27px rgba(24,95,165,.06),0 18px 40px rgba(12,68,124,.28);outline:none;}
.circle-core b{position:relative;font-size:20px;font-weight:700;line-height:1.4;}
.core-rule{position:relative;display:block;width:32px;height:1px;background:rgba(255,255,255,.3);margin:12px 0 10px;}
.core-state{position:relative;font-size:13.5px;line-height:1.6;opacity:.82;transition:opacity .2s ease;}
.core-state.is-active{opacity:1;font-weight:600;}
.core-more{position:relative;margin-top:9px;font-size:11px;opacity:.62;transition:opacity .2s ease;}
.circle-core:hover .core-more{opacity:.95;}
/* 模块节点：圆形图片 + 圆外居中标题；整块可点击进入对应产品页，悬停抬升并浮现外圈细环 */
.circle-node{position:absolute;left:50%;top:50%;width:var(--node-w);display:block;text-decoration:none;transform:translate(-50%,-50%) translate(calc(var(--dx,0px)*var(--s)),calc(var(--dy,0px)*var(--s)));z-index:4;transition:opacity .2s ease;}
/* 前序节点的文字说明不被后序节点的圆形图压住 */
.module-circle > a.circle-node:nth-of-type(1){z-index:18;}
.module-circle > a.circle-node:nth-of-type(2){z-index:16;}
.module-circle > a.circle-node:nth-of-type(3){z-index:14;}
.module-circle > a.circle-node:nth-of-type(4){z-index:12;}
.module-circle > a.circle-node:nth-of-type(5){z-index:10;}
.module-circle > a.circle-node:nth-of-type(6){z-index:8;}
.module-circle > a.circle-node:nth-of-type(7){z-index:6;}
.module-circle > a.circle-node:hover,
.module-circle > a.circle-node:focus-visible,
.module-circle > a.circle-node.is-active{z-index:40;}
.node-card{position:relative;display:block;width:100%;aspect-ratio:16/9;overflow:hidden;background:var(--gray-bg);border:2px solid #fff;border-radius:var(--radius);box-shadow:0 6px 18px rgba(12,68,124,.16);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;}
.node-card::after{content:"";position:absolute;inset:0;border-radius:var(--radius);border:1px solid rgba(24,95,165,.30);opacity:.4;pointer-events:none;transition:opacity .24s ease;}
.circle-node .node-thumb{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s ease;}
.circle-node:hover .node-card,.circle-node:focus-visible .node-card{transform:translateY(-6px);border-color:#fff;box-shadow:0 16px 34px rgba(12,68,124,.24);}
.circle-node:hover .node-card::after,.circle-node:focus-visible .node-card::after{opacity:1;transform:scale(1);}
.circle-node:hover .node-thumb,.circle-node:focus-visible .node-thumb{transform:scale(1.06);}
.circle-node:focus-visible{outline:none;}
.circle-node:focus-visible .node-card{box-shadow:0 0 0 3px rgba(24,95,165,.4),0 16px 34px rgba(12,68,124,.24);}
.node-caption{display:block;padding:12px 2px 0;text-align:center;}
.node-caption h4{margin:0;font-size:16px;font-weight:600;line-height:1.45;color:var(--blue-900);}
/* 聚焦某一模块时其余弱化，突出"该模块 ↔ 套件"的归属关系 */
.module-circle.has-active .circle-node:not(.is-active){opacity:.5;}
.module-circle.has-active .circle-node:not(.is-active) .node-card{box-shadow:0 3px 10px rgba(12,68,124,.08);}
/* 悬停说明框：鼠标移到某模块封面时，在其图片正下方弹出与图片等宽的说明框（宽度=--node-w，随卡片等比缩放），不占用页面纵向空间 */
.node-pop{position:absolute;top:100%;left:0;right:0;margin-top:10px;padding:13px 15px;background:#fff;border:1px solid #C3D4E6;border-radius:var(--radius);box-shadow:0 12px 30px rgba(12,68,124,.16);font-size:13px;line-height:1.7;color:var(--text);opacity:0;visibility:hidden;transform:translateY(-10px) scale(.98);transform-origin:top center;transition:opacity .3s cubic-bezier(.22,.61,.36,1),transform .3s cubic-bezier(.22,.61,.36,1),visibility .3s;z-index:30;pointer-events:none;}
.node-pop::before{content:"";position:absolute;left:50%;top:-6px;transform:translateX(-50%) rotate(45deg);width:10px;height:10px;background:#fff;border-left:1px solid #C3D4E6;border-top:1px solid #C3D4E6;}
.circle-node:hover .node-pop,.circle-node:focus-visible .node-pop,.circle-node.is-active .node-pop{opacity:1;visibility:visible;transform:translateY(0) scale(1);}
/* 底部两个节点（核磁数据高级分析 / 未知物从头解析）的说明框向上弹出，避免超出容器被裁掉 */
.circle-node[data-flip="up"] .node-pop{top:auto;bottom:calc(100% + 26px);margin-top:0;transform:translateY(10px) scale(.98);transform-origin:bottom center;}
.circle-node[data-flip="up"] .node-pop::before{top:auto;bottom:-6px;transform:translateX(-50%) rotate(225deg);}
.circle-node[data-flip="up"]:hover .node-pop,.circle-node[data-flip="up"]:focus-visible .node-pop,.circle-node[data-flip="up"].is-active .node-pop{transform:translateY(0) scale(1);}
.module-circle.has-active .circle-node:not(.is-active) .node-pop{opacity:0;visibility:hidden;}
@media(prefers-reduced-motion:reduce){
  .circle-core,.circle-core:hover,.circle-core:focus-visible,.spoke,.circle-node,.node-card,.node-card::after,.circle-node .node-thumb,.module-detail{transition:none;}
  .circle-core:hover,.circle-core:focus-visible{transform:translate(-50%,-50%);}
  .circle-node:hover .node-card,.circle-node:focus-visible .node-card,.circle-node:hover .node-thumb,.circle-node:focus-visible .node-thumb{transform:none;}
  .circle-node:hover .node-card::after,.circle-node:focus-visible .node-card::after{transform:none;}
}
/* 逐档等比缩小：容器 / 缩放因子 --s / 卡宽三者同步，保证 SVG 连线与节点始终对齐 */
@media(max-width:1047px){
  .module-circle{--s:.848;--node-w:251px;width:848px;height:678px;}
  .circle-core{width:210px;height:210px;padding:22px;}
  .circle-core b{font-size:18px;}
  .core-state{font-size:13px;}
}
@media(max-width:895px){
  .module-circle{--s:.708;--node-w:200px;width:708px;height:566px;}
  .circle-core{width:170px;height:170px;padding:16px;}
  .circle-core b{font-size:14px;}
  .core-rule{margin:9px 0 7px;}
  .core-state{font-size:11.5px;}
  .core-more{font-size:10px;margin-top:6px;}
  .circle-node h4{font-size:13px;}
}
@media(max-width:755px){
  .module-circle{position:static;width:100%;height:auto;}
  .circle-links{display:none;}
  .circle-core{position:static;transform:none;margin:0 auto 24px;width:200px;height:200px;padding:26px;}
  .circle-core:hover,.circle-core:focus-visible{transform:none;}
  .circle-core b{font-size:18px;}
  .core-state{font-size:13px;}
  .core-more{font-size:11px;}
  .circle-node{position:static;transform:none!important;--node-w:100%;width:100%;max-width:300px;margin:0 auto 22px;}
  .circle-node h4{font-size:15px;}
  .node-pop{position:static;top:auto;bottom:auto;left:auto;right:auto;margin-top:12px;opacity:1;visibility:visible;transform:none;display:block;pointer-events:auto;}
  .node-pop::before{display:none;}
  .circle-node[data-flip="up"] .node-pop{position:static;margin-top:12px;transform:none;}
}

/* 软件截图横向滑动栏目（可跨产品页复用） */
.shot-carousel { position: relative; }
.shot-track {
  display: flex; gap: 24px; overflow-x: auto; overflow-y: hidden;
  scroll-snap-type: x mandatory; scroll-behavior: smooth;
  padding-bottom: 14px; scrollbar-width: thin; scrollbar-color: #CFD6DE transparent;
}
.shot-track::-webkit-scrollbar { height: 6px; }
.shot-track::-webkit-scrollbar-track { background: #F1F3F5; border-radius: 3px; }
.shot-track::-webkit-scrollbar-thumb { background: #CFD6DE; border-radius: 3px; }
.shot-track::-webkit-scrollbar-thumb:hover { background: #B6C0CB; }
.shot-item {
  flex: 0 0 460px; max-width: 88%; scroll-snap-align: start; margin: 0;
}
.shot-item .figimg { width: 100%; }
.shot-nav {
  position: absolute; top: 40%; transform: translateY(-50%); z-index: 3;
  width: 42px; height: 42px; border-radius: 50%; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid var(--line); color: var(--blue-700);
  box-shadow: 0 2px 8px rgba(12, 68, 124, .12);
  transition: border-color .18s, color .18s, box-shadow .18s;
}
.shot-nav:hover { border-color: var(--blue-700); box-shadow: 0 3px 12px rgba(12, 68, 124, .2); }
.shot-nav:disabled { opacity: 0; pointer-events: none; }
.shot-nav.prev { left: -14px; }
.shot-nav.next { right: -14px; }
.shot-nav svg { width: 20px; height: 20px; }
@media (max-width: 700px) {
  .shot-nav { display: none; }
  .shot-item { flex-basis: 86%; }
}

/* 视频教程：左目录 + 右播放器（2026-10-23 · ChemSketch 19 集） */
.player-layout {
  display: grid; grid-template-columns: 296px minmax(0, 1fr); gap: 22px;
  margin-top: 20px; align-items: start;
}
.vtoc {
  display: flex; flex-direction: column; min-height: 0; overflow: hidden;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
}
.vtoc-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 10px;
  padding: 13px 14px; border-bottom: 1px solid var(--line);
}
.vtoc-head strong { font-size: 14px; color: var(--blue-900); }
.vtoc-head span { font-size: 12px; color: var(--text-sub); }
.vtoc-list {
  flex: 1; min-height: 0; overflow-y: auto; padding: 6px;
  max-height: 426px; scrollbar-width: thin;
}
.vtoc-item {
  display: grid; grid-template-columns: 24px minmax(0, 1fr) auto; align-items: center; gap: 8px;
  width: 100%; padding: 9px 10px; margin: 0; border: 0; border-left: 3px solid transparent;
  border-radius: 5px; background: transparent; text-align: left; font: inherit;
  font-size: 13.5px; line-height: 1.45; color: var(--text); cursor: pointer;
}
.vtoc-item:hover { background: var(--gray-bg); }
.vtoc-item.is-active { background: #EAF1F9; border-left-color: var(--blue-700); color: var(--blue-900); font-weight: 600; }
.vtoc-item:focus-visible { outline: 2px solid var(--blue-700); outline-offset: -2px; }
.vtoc-num { font-size: 12px; font-weight: 600; color: var(--text-sub); font-variant-numeric: tabular-nums; }
.vtoc-item.is-active .vtoc-num { color: var(--blue-700); }
.vtoc-name { overflow: hidden; text-overflow: ellipsis; }
.vtoc-dur { font-size: 12px; color: var(--text-sub); font-variant-numeric: tabular-nums; font-weight: 400; }
.vtoc-foot {
  display: block; padding: 11px 14px; border-top: 1px solid var(--line);
  font-size: 12.5px; line-height: 1.55; color: var(--blue-700); text-decoration: none;
}
.vtoc-foot:hover { background: var(--gray-bg); }

.vplayer { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.vstage { position: relative; aspect-ratio: 16 / 9; background: #08111c; }
.vstage video { display: block; width: 100%; height: 100%; background: #000; }
.vbar {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding: 11px 18px; border-top: 1px solid var(--line);
}
.vbar-main { min-width: 0; }
.vbar-ep { display: block; font-size: 12px; font-weight: 600; color: var(--blue-700); letter-spacing: .02em; }
.vbar-main h3 { margin: 2px 0 0; font-size: 16px; font-weight: 600; color: var(--blue-900); line-height: 1.4; }
.vbar-nav { display: flex; gap: 8px; flex: none; }
.vbtn {
  padding: 6px 12px; border: 1px solid var(--line); border-radius: 6px; background: #fff;
  font: inherit; font-size: 13px; color: var(--blue-900); cursor: pointer; white-space: nowrap;
}
.vbtn:hover:not(:disabled) { border-color: var(--blue-700); background: #EAF1F9; }
.vbtn:disabled { color: #B9C0C8; cursor: default; }

@media (max-width: 1080px) {
  .player-layout { grid-template-columns: 1fr; gap: 16px; }
  .vplayer { order: 1; }
  .vtoc { order: 2; }
  .vtoc-list { max-height: 300px; }
}
@media (max-width: 560px) {
  .vbar { flex-direction: column; align-items: stretch; gap: 10px; }
  .vbar-nav { justify-content: space-between; }
  .vbtn { flex: 1; text-align: center; }
}

/* 锚点跳转避开吸顶头部（2026-10-23） */
section[id] { scroll-margin-top: 104px; }

/* 咨询表单：必填标记 / 校验错误 / 提交反馈（2026-10-23） */
.field label .req { color: #C0392B; margin-left: 2px; }
.field .f-err { display: none; font-size: 12.5px; line-height: 1.5; color: #C0392B; }
.field.is-invalid .f-err { display: block; }
.field.is-invalid input,
.field.is-invalid select,
.field.is-invalid textarea { border-color: #C0392B; background: #FDF6F5; }
.field.is-invalid input:focus,
.field.is-invalid select:focus,
.field.is-invalid textarea:focus { border-color: #C0392B; box-shadow: 0 0 0 3px rgba(192, 57, 43, .12); }
.form-grid button[disabled] { opacity: .65; cursor: progress; }
.form-msg { margin: 0 0 4px; padding: 10px 12px; border-radius: var(--radius); font-size: 13.5px; line-height: 1.6; grid-column: 1 / -1; }
.form-msg--err { background: #FDF6F5; border: 1px solid #F0C7C1; color: #A5342A; }
.form-done { text-align: center; padding: 26px 16px; }
.form-done .ok {
  width: 44px; height: 44px; margin: 0 auto 12px; border-radius: 50%;
  background: #E9F4EC; color: #1E7B45; font-size: 22px; line-height: 44px;
}
.form-done h3 { margin: 0 0 6px; font-size: 17px; color: var(--blue-900); }
.form-done p { margin: 0; font-size: 14px; line-height: 1.7; color: var(--text-sub); }

/* 咨询区（2026-10-23）
   腾讯问卷内页桌面端固定 800px × 1939px，内嵌会占掉整屏高度，改用「入口卡 + 新窗口打开」。
   如日后要恢复内嵌：给 .wj-embed 恢复边框+裁切，iframe 高度设 1940（桌面）/1900（手机）。 */
.wj-note { margin: 0; font-size: 13px; line-height: 1.7; color: var(--text-sub); }
.wj-note a { color: var(--blue-700); text-decoration: underline; }
/* 咨询区：说明在上、入口卡在下 */
.consult-head { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px 48px; align-items: start; margin-bottom: 28px; }
.consult-head > * { min-width: 0; }
.consult-cta {
  display: flex; align-items: center; justify-content: space-between; gap: 20px 28px; flex-wrap: wrap;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 24px;
}
.consult-cta-main { flex: 1 1 300px; min-width: 0; }
/* 咨询顾问形象图：贴卡片左边缘，随卡片高度拉伸（2026-10-24） */
.consult-photo {
  flex: 0 0 200px; align-self: stretch; margin: -22px 0 -22px -24px;
  border-radius: var(--radius) 0 0 var(--radius); overflow: hidden; background: #E9EEF4;
}
.consult-photo img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: 50% 20%; }
.consult-cta h3 { margin: 0 0 6px; font-size: 18px; color: var(--blue-900); }
.consult-cta p { margin: 0 0 14px; font-size: 14px; line-height: 1.7; color: var(--text-sub); }
.consult-cta-actions { display: flex; align-items: center; gap: 10px 20px; flex-wrap: wrap; }
/* 问卷二维码（2026-10-24）：与按钮并列，图片自带白边保证扫码留白区 */
.consult-qr {
  flex: 0 0 auto; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  align-self: stretch; margin: -22px 0; padding: 22px 0 22px 24px; border-left: 1px solid var(--line);
}
.consult-qr img { display: block; width: 150px; height: 150px; background: #fff; }
.consult-qr span { font-size: 12.5px; color: var(--text-sub); letter-spacing: .02em; }
/* 联系方式：二维码 + 信息表，窄屏自动换行 */
.contact-who { display: flex; gap: 24px; align-items: flex-start; margin-top: 16px; flex-wrap: wrap; }
.contact-who > div { flex: 1 1 200px; min-width: 0; }
.contact-who .table td { word-break: break-word; }
@media (max-width: 900px) {
  .consult-head { grid-template-columns: 1fr; gap: 24px; }
  .consult-cta { gap: 18px 20px; }
  .consult-photo { flex-basis: 150px; }
}
@media (max-width: 700px) {
  .consult-cta { padding: 20px; }
  /* 窄屏：形象图变顶部通栏横幅 */
  .consult-photo {
    flex: 0 0 auto; width: calc(100% + 40px); height: 176px; margin: -20px -20px 0;
    border-radius: var(--radius) var(--radius) 0 0;
  }
  .consult-photo img { height: 176px; object-position: 50% 24%; }
  .consult-cta-main { flex: 1 1 100%; }
  .consult-cta-actions { width: 100%; }
  .consult-cta-actions .btn { width: 100%; text-align: center; }
  /* 窄屏二维码横排放在按钮下面，省高度 */
  .consult-qr {
    flex-direction: row; width: 100%; justify-content: center; gap: 12px;
    align-self: auto; margin: 0; padding: 16px 0 0;
    border-left: 0; border-top: 1px solid var(--line);
  }
  .consult-qr img { width: 124px; height: 124px; }
  .consult-qr span { font-size: 13.5px; }
}

/* 移动端头部：导航换到第二行，CTA 保持完整宽度（2026-10-23） */
@media (max-width: 700px) {
  .header-inner { height: auto; min-height: 72px; padding: 10px 0; flex-wrap: wrap; gap: 10px 12px; }
  .logo img { height: 56px; }
  .header-cta { margin-left: auto; flex: 0 0 auto; }
  .header-cta .btn { padding: 8px 14px; font-size: 14px; }
  .nav {
    order: 3; width: 100%; margin-left: 0; gap: 2px;
    flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch;
    padding-bottom: 2px; scrollbar-width: none;
  }
  .nav::-webkit-scrollbar { display: none; }
  .nav a, .nav-item > a { white-space: nowrap; padding: 7px 10px; font-size: 14px; }
}