/* ==========================================================================
   昱硕智能中文官网 V2.0 — 全站样式
   设计基准：1920px 桌面画布 · 主容器 1280px 居中 · 完整纵向滚动
   ========================================================================== */

:root {
  --navy-950: #081220;
  --navy-900: #0c1c33;
  --navy-800: #112743;
  --navy-700: #1a3a63;
  --navy-600: #23497b;
  --blue-500: #1e6fff;
  --blue-400: #3b8bff;
  --blue-600: #0f56d6;
  --cyan-400: #4fc3f7;
  --ink-900: #16233a;
  --ink-700: #3a4a63;
  --ink-500: #5a6a82;
  --ink-300: #9aa7ba;
  --bg-page: #f4f7fb;
  --bg-card: #ffffff;
  --line: #e3e9f2;
  --shadow-sm: 0 2px 10px rgba(13, 35, 67, 0.06);
  --shadow-md: 0 10px 30px rgba(13, 35, 67, 0.10);
  --radius: 12px;
  --header-h: 76px;
  --header-h-sm: 60px;
  --container: 1280px;
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Segoe UI", system-ui, -apple-system, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink-900);
  background: var(--bg-page);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  /* 视口小于容器宽时（平板 768-1279px）内容不贴边 */
  padding-left: 24px;
  padding-right: 24px;
  padding: 0 32px;
}

/* --------------------------------------------------------------------------
   顶部导航（吸顶）
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: linear-gradient(90deg, var(--navy-950) 0%, var(--navy-800) 60%, var(--navy-700) 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: height 0.25s ease, box-shadow 0.25s ease;
}
.site-header.scrolled {
  height: var(--header-h-sm);
  box-shadow: 0 6px 24px rgba(5, 15, 30, 0.35);
}
.header-inner {
  max-width: 1560px;
  margin: 0 auto;
  padding: 0 32px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 40px;
}
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand img.brand-logo {
  height: 24px;
  width: auto;
  /* 黑字白底 Logo：反白后用 screen 混合让白底融入深色导航，仅保留白色字标 */
  filter: invert(1);
  mix-blend-mode: screen;
  transition: height 0.25s ease;
}
.site-header.scrolled .brand img.brand-logo { height: 20px; }
.brand .brand-cn {
  color: rgba(255, 255, 255, 0.92);
  font-size: 15px;
  letter-spacing: 2px;
  border-left: 1px solid rgba(255, 255, 255, 0.25);
  padding-left: 12px;
  line-height: 1.2;
  white-space: nowrap;
}
.brand .brand-cn .suffix {
  font-size: 12px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 1px;
}
.main-nav { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.main-nav a {
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
  padding: 8px 16px;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
}
.main-nav a:hover { color: #fff; background: rgba(255, 255, 255, 0.08); }
.main-nav a.active {
  color: #fff;
  font-weight: 600;
  position: relative;
}
.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--blue-400);
}
.header-cta { flex-shrink: 0; }

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  margin-left: auto;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  background: transparent;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   按钮体系
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
  color: #fff;
  box-shadow: 0 6px 18px rgba(30, 111, 255, 0.35);
}
.btn-primary:hover { box-shadow: 0 10px 26px rgba(30, 111, 255, 0.45); }
.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.55);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; }
.btn-blue-ghost {
  background: transparent;
  color: var(--blue-500);
  border: 1px solid var(--blue-500);
}
.btn-blue-ghost:hover { background: rgba(30, 111, 255, 0.06); }
.btn-sm { padding: 9px 20px; font-size: 14px; border-radius: 8px; }

/* --------------------------------------------------------------------------
   首页首屏主视觉
   -------------------------------------------------------------------------- */
.hero-home {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  background:
    linear-gradient(90deg, rgba(8, 18, 32, 0.92) 0%, rgba(10, 25, 46, 0.72) 38%, rgba(10, 25, 46, 0.25) 70%, rgba(10, 25, 46, 0.15) 100%),
    url("../img/hero-building.jpg") center right / cover no-repeat,
    var(--navy-900);
  overflow: hidden;
}
.hero-home::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 120px;
  background: linear-gradient(180deg, transparent, rgba(8, 18, 32, 0.55));
  pointer-events: none;
}
.hero-home-inner {
  position: relative;
  z-index: 2;
  padding-top: 110px;
  padding-bottom: 130px;
  color: #fff;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--cyan-400);
  margin-bottom: 22px;
}
.hero-kicker::before {
  content: "";
  width: 34px;
  height: 2px;
  background: var(--cyan-400);
}
.hero-home h1 {
  font-size: 56px;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: 1px;
  max-width: 640px;
  text-shadow: 0 4px 24px rgba(4, 12, 24, 0.5);
}
.hero-home h1 .accent {
  background: linear-gradient(90deg, #6db6ff, var(--cyan-400));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  margin-top: 22px;
  font-size: 19px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
}
.hero-actions { margin-top: 42px; display: flex; gap: 16px; flex-wrap: wrap; }

/* --------------------------------------------------------------------------
   内页通用首屏
   -------------------------------------------------------------------------- */
.page-hero {
  position: relative;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(8, 18, 32, 0.94) 0%, rgba(10, 25, 46, 0.78) 45%, rgba(10, 25, 46, 0.3) 100%),
    url("../img/hero-building.jpg") center right / cover no-repeat,
    var(--navy-900);
  overflow: hidden;
}
.page-hero-inner { padding: 96px 0 100px; }
.page-hero h1 {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: 1px;
  text-shadow: 0 4px 20px rgba(4, 12, 24, 0.5);
}
.page-hero .page-hero-sub {
  margin-top: 16px;
  font-size: 17px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 620px;
}
.page-hero .breadcrumb {
  margin-bottom: 18px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 1px;
}
.page-hero .breadcrumb a:hover { color: var(--cyan-400); }

/* --------------------------------------------------------------------------
   区块通用
   -------------------------------------------------------------------------- */
.section { padding: 88px 0; }
.section.tint { background: #fff; }
.section-head { text-align: center; margin-bottom: 52px; }
.section-head .slash {
  display: inline-block;
  width: 36px;
  height: 20px;
  margin-bottom: 12px;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 20"><g stroke="%231e6fff" stroke-width="4.5" stroke-linecap="round"><line x1="7" y1="17" x2="13" y2="3"/><line x1="16" y1="17" x2="22" y2="3"/><line x1="25" y1="17" x2="31" y2="3"/></g></svg>') center / contain no-repeat;
}
.section-head h2 {
  font-size: 34px;
  font-weight: 700;
  color: var(--ink-900);
  letter-spacing: 1px;
}
.section-head p {
  margin-top: 12px;
  color: var(--ink-500);
  font-size: 16px;
}
.section-head.on-dark h2 { color: #fff; }
.section-head.on-dark p { color: rgba(255, 255, 255, 0.75); }

/* 深色区块 */
.section-dark {
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(30, 111, 255, 0.18), transparent 60%),
    linear-gradient(180deg, var(--navy-950), var(--navy-800));
  color: #fff;
}

/* --------------------------------------------------------------------------
   卡片网格
   -------------------------------------------------------------------------- */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.value-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 26px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.value-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.value-card .icon {
  width: 58px;
  height: 58px;
  margin: 0 auto 18px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(30, 111, 255, 0.12), rgba(79, 195, 247, 0.14));
}
.value-card .icon svg { width: 30px; height: 30px; }
.value-card h3 { font-size: 19px; margin-bottom: 10px; color: var(--ink-900); }
.value-card p { font-size: 14px; color: var(--ink-500); line-height: 1.8; }

/* --------------------------------------------------------------------------
   首页：宽幅视频区
   -------------------------------------------------------------------------- */
.video-band {
  position: relative;
  /* 中性浅灰区块：去蓝味，与整页白/灰底色一体，比白色区块深一档形成区隔 */
  background: linear-gradient(180deg, #e9edf2 0%, #f1f4f7 60%, var(--bg-page) 100%);
}
.video-band .container { position: relative; z-index: 1; }
.video-shell {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(8, 20, 40, 0.35);
  cursor: pointer;
  background: var(--navy-900);
}
.video-shell img { width: 100%; height: auto; }
.video-shell .video-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 104px;
  height: 104px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.9);
  background: rgba(10, 25, 46, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s, background 0.2s;
}
.video-shell:hover .video-play { transform: translate(-50%, -50%) scale(1.06); background: rgba(30, 111, 255, 0.55); }
.video-shell .video-play svg { width: 40px; height: 40px; fill: #fff; margin-left: 6px; }
.video-tip {
  margin-top: 14px;
  text-align: center;
  font-size: 13px;
  color: var(--ink-500);
}

/* 视频弹层 */
.video-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(3, 8, 18, 0.92);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 4vh 4vw;
}
.video-modal.open { display: flex; }
.video-modal-box {
  position: relative;
  width: min(1400px, 100%);
  background: transparent;
  border: none;
  border-radius: 14px;
  padding: 0;
  box-shadow: 0 40px 110px rgba(0, 0, 0, 0.6);
  animation: videoIn 0.3s ease;
}
@keyframes videoIn {
  from { opacity: 0; transform: scale(0.96) translateY(14px); }
  to { opacity: 1; transform: none; }
}
.video-modal-close {
  position: absolute;
  top: -52px;
  right: 0;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}
.video-modal-close:hover { background: rgba(255, 255, 255, 0.26); transform: rotate(90deg); }
.video-player { display: block; width: 100%; aspect-ratio: 16 / 9; background: #000; border-radius: 14px; }
@media (max-width: 767px) {
  .video-modal { padding: 0; }
  .video-modal-box { width: 100%; height: 100%; border-radius: 0; border: none; }
  .video-modal-close { top: 12px; right: 12px; background: rgba(0, 0, 0, 0.5); }
  .video-player { height: 100%; aspect-ratio: auto; }
}

.video-modal-close:hover { background: rgba(255, 255, 255, 0.25); }

/* --------------------------------------------------------------------------
   首页：核心产品入口
   -------------------------------------------------------------------------- */
.entry-card {
  position: relative;
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.entry-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.entry-card .entry-visual {
  height: 190px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, var(--navy-900), var(--navy-700));
  display: flex;
  align-items: center;
  justify-content: center;
}
.entry-card .entry-visual img { max-height: 78%; width: auto; max-width: 86%; object-fit: contain; }
.entry-card .entry-visual img.cover { width: 100%; height: 100%; max-width: none; max-height: none; object-fit: cover; }
.entry-card .entry-body { padding: 22px 22px 26px; }
.entry-card h3 { font-size: 18px; color: var(--ink-900); margin-bottom: 8px; }
.entry-card p { font-size: 14px; color: var(--ink-500); line-height: 1.75; }
.entry-card .entry-arrow {
  position: absolute;
  right: 16px;
  bottom: 16px;
  color: var(--blue-500);
  font-size: 13px;
  font-weight: 600;
}
.entry-card:hover .entry-arrow { text-decoration: underline; }

/* UI 示意缩略（纯 CSS 绘制） */
.ui-thumb {
  width: 78%;
  aspect-ratio: 16 / 10;
  background: linear-gradient(160deg, #0d2242, #123059);
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 10px 26px rgba(5, 14, 28, 0.45);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ui-thumb .bar { height: 8px; border-radius: 4px; background: rgba(79, 195, 247, 0.65); }
.ui-thumb .row { display: flex; gap: 6px; flex: 1; }
.ui-thumb .cell { flex: 1; border-radius: 5px; background: rgba(255, 255, 255, 0.08); }
.ui-thumb .cell.hl { background: rgba(30, 111, 255, 0.55); }
.ui-thumb .line { height: 5px; border-radius: 3px; background: rgba(255, 255, 255, 0.16); }
.ui-thumb.phone { width: 34%; aspect-ratio: 9 / 17; border-radius: 14px; padding: 8px 7px; gap: 5px; }

/* --------------------------------------------------------------------------
   首页：解决方案场景入口
   -------------------------------------------------------------------------- */
.scenario-card {
  position: relative;
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  height: 170px;
  box-shadow: var(--shadow-sm);
}
.scenario-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: left center; /* 企业图文字在左侧，锚定左缘防裁切 */
  transition: transform 0.35s ease;
}
.scenario-card:hover img { transform: scale(1.05); }
.scenario-card .mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(8, 20, 40, 0.88) 100%);
}
.scenario-card .txt {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 18px;
  color: #fff;
}
.scenario-card .txt h3 { font-size: 19px; margin-bottom: 4px; }
.scenario-card .txt p { font-size: 13px; color: rgba(255, 255, 255, 0.8); }

/* --------------------------------------------------------------------------
   CTA 横幅
   -------------------------------------------------------------------------- */
.cta-band {
  position: relative;
  background:
    linear-gradient(90deg, rgba(8, 18, 32, 0.9), rgba(13, 34, 63, 0.82)),
    url("../img/hero-building.jpg") center / cover no-repeat;
  color: #fff;
  text-align: center;
  padding: 84px 0;
}
.cta-band h2 { font-size: 34px; letter-spacing: 1px; }
.cta-band p { margin-top: 12px; color: rgba(255, 255, 255, 0.8); font-size: 16px; }
.cta-band .btn { margin-top: 30px; }

/* --------------------------------------------------------------------------
   页脚
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--navy-950);
  color: rgba(255, 255, 255, 0.78);
  padding: 64px 0 0;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand img.brand-logo {
  height: 20px;
  filter: invert(1);
  mix-blend-mode: screen;
  margin-bottom: 6px;
}
.footer-brand .cn {
  color: #fff;
  letter-spacing: 2px;
  margin: 8px 0 14px;
  font-size: 15px;
}
.footer-brand p { line-height: 1.9; color: rgba(255, 255, 255, 0.6); max-width: 340px; }
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.footer-col li { margin-bottom: 10px; }
.footer-col a:hover { color: var(--cyan-400); }
.footer-col .pending { color: rgba(255, 255, 255, 0.4); }
.qr-slot {
  width: 108px;
  height: 108px;
  border: 1px dashed rgba(255, 255, 255, 0.3);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
  padding: 8px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}
.footer-bottom .beian { display: inline-flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.footer-bottom .beian a { color: rgba(255, 255, 255, 0.55); transition: color 0.2s; }
.footer-bottom .beian a:hover { color: #fff; }
.footer-bottom .beian .beian-ga { display: inline-flex; align-items: center; gap: 5px; }
.footer-bottom .beian .beian-ga img { width: auto; height: 11px; flex-shrink: 0; }

/* --------------------------------------------------------------------------
   产品中心
   -------------------------------------------------------------------------- */
.cat-nav {
  position: sticky;
  top: var(--header-h-sm);
  z-index: 60;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  transition: top 0.25s ease;
}
body.header-scrolled .cat-nav { top: var(--header-h-sm); }
.cat-nav-inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 12px 32px;
  max-width: var(--container);
  margin: 0 auto;
}
.cat-nav a {
  padding: 9px 22px;
  border-radius: 999px;
  font-size: 15px;
  color: var(--ink-700);
  background: var(--bg-page);
  border: 1px solid var(--line);
  white-space: nowrap;
  transition: all 0.2s;
}
.cat-nav a:hover, .cat-nav a.active {
  background: var(--blue-500);
  border-color: var(--blue-500);
  color: #fff;
}

.product-section { padding: 72px 0 20px; scroll-margin-top: 150px; }
.product-section:last-of-type { padding-bottom: 72px; }
.product-section-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 34px; }
.product-section-head .slash {
  width: 32px; height: 18px; align-self: center;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 20"><g stroke="%231e6fff" stroke-width="4.5" stroke-linecap="round"><line x1="7" y1="17" x2="13" y2="3"/><line x1="16" y1="17" x2="22" y2="3"/><line x1="25" y1="17" x2="31" y2="3"/></g></svg>') center / contain no-repeat;
}
.product-section-head h2 { font-size: 28px; color: var(--ink-900); }
.product-section-head .en { font-size: 14px; color: var(--ink-300); letter-spacing: 1px; }

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.product-card .p-visual {
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  background: linear-gradient(168deg, #f2f7fc, #e3edf8);
  overflow: hidden;
}
.product-card .p-visual img:not(.scenario-split-img) {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: none;
  object-fit: contain;
}
.product-card .p-body { padding: 24px 24px 26px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.product-card .p-tag {
  align-self: flex-start;
  font-size: 12px;
  color: var(--blue-500);
  background: rgba(30, 111, 255, 0.08);
  border: 1px solid rgba(30, 111, 255, 0.25);
  padding: 3px 10px;
  border-radius: 999px;
}
.product-card h3 { font-size: 20px; color: var(--ink-900); }
.product-card .p-desc { font-size: 14px; color: var(--ink-500); }
.product-card .p-specs { margin-top: 4px; }
.product-card .p-specs li {
  font-size: 13px;
  color: var(--ink-700);
  padding: 7px 0 7px 18px;
  border-top: 1px dashed var(--line);
  position: relative;
}
.product-card .p-specs li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue-400);
}
.product-card .p-foot { margin-top: auto; padding-top: 14px; display: flex; gap: 12px; align-items: center; }
.pending-note {
  font-size: 12px;
  color: var(--ink-300);
  background: repeating-linear-gradient(45deg, #fafbfd, #fafbfd 8px, #f2f5fa 8px, #f2f5fa 16px);
  border: 1px dashed #c9d4e4;
  border-radius: 8px;
  padding: 8px 12px;
}

/* 大屏 UI 示意（纯 CSS 驾驶舱） */
.bigscreen-mock {
  background: linear-gradient(160deg, #0a1a33, #0e2748);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 14px;
  color: #cfe4ff;
  font-size: 11px;
  display: grid;
  grid-template-columns: 1fr 1.4fr 1fr;
  grid-template-rows: auto 1fr auto;
  gap: 8px;
  min-height: 250px;
}
.bigscreen-mock .panel {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(120, 170, 255, 0.18);
  border-radius: 8px;
  padding: 8px;
}
.bigscreen-mock .panel h5 {
  font-size: 10px;
  color: #8fb8ff;
  letter-spacing: 1px;
  margin-bottom: 6px;
  font-weight: 600;
}
.bigscreen-mock .kpi { grid-column: 1 / 4; display: flex; gap: 8px; }
.bigscreen-mock .kpi .panel { flex: 1; text-align: center; }
.bigscreen-mock .kpi b { display: block; font-size: 20px; color: #4fc3f7; }
.bigscreen-mock .map { grid-row: 2 / 4; display: flex; align-items: center; justify-content: center; }
.bigscreen-mock .map .dotmap { position: relative; width: 84%; aspect-ratio: 4/3; }
.bigscreen-mock .map .dot {
  position: absolute;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #4fc3f7;
  box-shadow: 0 0 8px #4fc3f7;
}
.bigscreen-mock .map .dot.warn { background: #ffb03a; box-shadow: 0 0 8px #ffb03a; }
.bigscreen-mock .bars { display: flex; align-items: flex-end; gap: 5px; height: 74%; }
.bigscreen-mock .bars i { flex: 1; border-radius: 3px 3px 0 0; background: linear-gradient(180deg, #3b8bff, rgba(30, 111, 255, 0.25)); }
.bigscreen-mock .alarm li {
  padding: 4px 0;
  border-bottom: 1px dashed rgba(120, 170, 255, 0.15);
  color: #a9c6f5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.bigscreen-mock .alarm li b { color: #ffb03a; font-weight: 600; }
.ui-tag {
  display: inline-block;
  margin-top: 10px;
  font-size: 12px;
  color: var(--ink-500);
  background: #eef3fa;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 4px 10px;
}

/* 手机小程序示意 */
.phone-mock {
  width: 200px;
  margin: 0 auto;
  background: #0d2242;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 12px 10px;
  color: #dfe9f8;
  font-size: 10px;
  box-shadow: 0 16px 36px rgba(8, 20, 40, 0.35);
}
.phone-mock .ph-head {
  text-align: center;
  color: #8fb8ff;
  letter-spacing: 2px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 8px;
}
.phone-mock .ph-card {
  background: rgba(255, 255, 255, 0.07);
  border-radius: 8px;
  padding: 8px;
  margin-bottom: 6px;
}
.phone-mock .ph-card b { color: #4fc3f7; font-size: 13px; }
.phone-mock .ph-row { display: flex; justify-content: space-between; color: #a9c6f5; }
.phone-mock .ph-ok { color: #52d98f; }
.phone-mock .ph-warn { color: #ffb03a; }

/* --------------------------------------------------------------------------
   对比表
   -------------------------------------------------------------------------- */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  font-size: 14px;
}
.compare-table th, .compare-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.compare-table thead th {
  background: var(--navy-800);
  color: #fff;
  font-weight: 600;
  letter-spacing: 1px;
}
.compare-table tbody th { background: #f7fafd; color: var(--ink-700); width: 180px; }
.compare-table tbody tr:hover { background: #f7fbff; }

/* --------------------------------------------------------------------------
   冷库解决方案
   -------------------------------------------------------------------------- */
.pain-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
}
.pain-card .no {
  font-size: 13px;
  font-weight: 700;
  color: var(--blue-500);
  letter-spacing: 2px;
  margin-bottom: 10px;
}
.pain-card h3 { font-size: 18px; margin-bottom: 8px; color: var(--ink-900); }
.pain-card p { font-size: 14px; color: var(--ink-500); }

/* 架构图 */
.arch-flow { display: flex; flex-direction: column; gap: 0; }
.arch-layer {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 18px;
  align-items: stretch;
}
.arch-layer .arch-label {
  background: linear-gradient(135deg, var(--navy-800), var(--navy-600));
  color: #fff;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 2px;
  padding: 18px 10px;
  text-align: center;
}
.arch-layer .arch-label small { font-weight: 400; font-size: 11px; color: rgba(255, 255, 255, 0.55); letter-spacing: 1px; }
.arch-layer .arch-items {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  box-shadow: var(--shadow-sm);
}
.arch-items .chip {
  background: #f2f7ff;
  border: 1px solid #d5e4fa;
  color: var(--navy-700);
  font-size: 13px;
  padding: 7px 14px;
  border-radius: 8px;
}
.arch-items .chip.hl { background: var(--blue-500); border-color: var(--blue-500); color: #fff; font-weight: 600; }
.arch-items .arr { color: var(--blue-400); font-weight: 700; padding: 0 4px; }
.arch-link {
  display: flex;
  justify-content: center;
  padding: 6px 0;
  color: var(--blue-400);
  font-size: 18px;
  line-height: 1;
}

/* 实施流程 */
.flow-steps { counter-reset: step; display: grid; grid-template-columns: repeat(7, 1fr); gap: 14px; }
.flow-step {
  counter-increment: step;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 14px;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.flow-step::before {
  content: "0" counter(step);
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--blue-500);
  margin-bottom: 8px;
  letter-spacing: 1px;
}
.flow-step h4 { font-size: 15px; color: var(--ink-900); margin-bottom: 6px; }
.flow-step p { font-size: 12px; color: var(--ink-500); line-height: 1.65; }

/* 六步流程（合作伙伴页）：桌面 6 列，随断点降列，避免 inline 样式覆盖响应式 */
.flow-steps-6 { grid-template-columns: repeat(6, 1fr); }

/* 横向场景卡（冷库解决方案页）：桌面左图右文，手机恢复上下堆叠 */
.scenario-split .scenario-split-visual { padding: 0; min-height: 0; position: relative; height: 190px; }
.scenario-split .scenario-split-img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: left center;
  border-radius: 0;
}
.scenario-split .p-body { min-width: 0; } /* 防止文字列被挤压竖排 */
@media (min-width: 768px) {
  .scenario-split { flex-direction: row; align-items: stretch; }
  .scenario-split .scenario-split-visual { flex: 0 0 280px; height: auto; }
}

/* 双栏图文 */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.split .img-frame {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.split .img-frame img { width: 100%; height: 100%; object-fit: cover; }
.split h3 { font-size: 24px; color: var(--ink-900); margin-bottom: 16px; }
.split p { color: var(--ink-500); font-size: 15px; margin-bottom: 12px; }
.split ul.checklist li {
  position: relative;
  padding: 8px 0 8px 30px;
  color: var(--ink-700);
  font-size: 15px;
  border-bottom: 1px dashed var(--line);
}
.split ul.checklist li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 14px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--blue-500) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="white"><path d="M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z"/></svg>') center / 12px no-repeat;
}

/* --------------------------------------------------------------------------
   合作伙伴 / 关于我们
   -------------------------------------------------------------------------- */
.partner-type {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.partner-type:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.partner-type .icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(30, 111, 255, 0.12), rgba(79, 195, 247, 0.14));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.partner-type .icon svg { width: 26px; height: 26px; }
.partner-type h3 { font-size: 18px; margin-bottom: 8px; }
.partner-type p { font-size: 14px; color: var(--ink-500); }

.support-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.support-item {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  padding: 24px 18px;
  color: #fff;
  transition: background 0.2s, transform 0.2s;
}
.support-item:hover { background: rgba(255, 255, 255, 0.1); transform: translateY(-3px); }
.support-item b { display: block; font-size: 16px; margin-bottom: 8px; }
.support-item span { font-size: 13px; color: rgba(255, 255, 255, 0.68); line-height: 1.7; display: block; }

.coop-mode {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 30px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}
.coop-mode::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue-500), var(--cyan-400));
}
.coop-mode .mode-no { font-size: 13px; font-weight: 700; color: var(--blue-500); letter-spacing: 2px; }
.coop-mode h3 { font-size: 21px; margin: 10px 0 12px; color: var(--ink-900); }
.coop-mode p { font-size: 14.5px; color: var(--ink-500); }

/* FAQ */
.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  margin-bottom: 14px;
  overflow: hidden;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-900);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 22px;
  color: var(--blue-500);
  transition: transform 0.2s;
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-a { padding: 0 22px 20px; color: var(--ink-500); font-size: 14.5px; }
.faq-item .faq-a .pending-note { margin-top: 10px; }

/* 关于我们 */
.about-intro { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: stretch; }
.about-intro h3 { font-size: 26px; margin-bottom: 18px; }
.about-intro p { color: var(--ink-500); margin-bottom: 14px; font-size: 15.5px; }
.about-img {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  min-height: 320px;
}
.about-img img { width: 100%; height: 100%; object-fit: cover; }

.capsule-list { display: flex; flex-wrap: wrap; gap: 12px; }
.capsule-list .cap {
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink-700);
  font-size: 14px;
  padding: 10px 20px;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}
.capsule-list .cap b { color: var(--blue-500); margin-right: 6px; }

.vision-band {
  text-align: center;
  padding: 30px 20px;
}
.vision-band .v-main {
  font-size: 26px;
  font-weight: 700;
  color: var(--ink-900);
  line-height: 1.6;
}
.vision-band .v-main em { font-style: normal; color: var(--blue-500); }

/* --------------------------------------------------------------------------
   联系我们
   -------------------------------------------------------------------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 40px; align-items: stretch; }
.contact-info-card {
  background: linear-gradient(165deg, var(--navy-800), var(--navy-600));
  color: #fff;
  border-radius: 16px;
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
}
.contact-info-card .contact-qr-row { margin-top: auto; padding-top: 28px; } /* 二维码区贴底，填满与表单等高 */
.contact-info-card > p { margin: 10px 0 0; }
.contact-info-card h3 { font-size: 20px; margin-bottom: 22px; }
.contact-info-card .ci-row {
  display: flex;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.16);
  font-size: 15px;
  align-items: flex-start;
}
.contact-info-card .ci-row:last-of-type { border-bottom: none; }
.contact-info-card .ci-row .ic { flex-shrink: 0; width: 20px; color: var(--cyan-400); text-align: center; }
.contact-info-card .ci-row .lb { color: rgba(255, 255, 255, 0.55); width: 76px; flex-shrink: 0; }
.contact-info-card .ci-row .pending { color: rgba(255, 255, 255, 0.45); font-size: 13px; }
.contact-qr-row { display: flex; gap: 18px; margin-top: 24px; flex-wrap: wrap; }
.contact-qr {
  text-align: center;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
}
.contact-qr .qr-slot { margin-bottom: 8px; border-color: rgba(255, 255, 255, 0.28); }

/* 已替换为真实二维码的槽位：白底衬边，保证二维码扫码对比度 */
.qr-slot.qr-ready { border: none; padding: 6px; background: #fff; overflow: hidden; }
.qr-slot.qr-ready img { display: block; width: 100%; height: 100%; object-fit: cover; border-radius: 7px; }
.qr-tip { display: block; margin-top: 8px; font-size: 12px; color: rgba(255, 255, 255, 0.55); }

.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 36px 34px;
  box-shadow: var(--shadow-md);
}
/* 联系页 · 位置地图卡 */
.map-card {
  margin-top: 40px; /* 与上方卡片间距一致，形成同一组卡片节奏 */
  position: relative;
  z-index: 0; /* 建立独立层叠上下文：Leaflet 内部高 z-index（400-800）不会盖过 sticky header */
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  background: #fff;
}
.map-visual {
  position: relative;
  min-height: 300px;
  background: #e8eef5;
}
/* 注意：#companyMap 与 .map-visual 是同一元素，不可用 absolute（会脱离卡片以视口定位） */
#companyMap { width: 100%; } /* 高度交给 .map-visual 的 min-height 控制 */
.leaflet-container { font: inherit; background: #e8eef5; }
.map-pin {
  display: block;
  width: 24px; height: 24px;
  background: var(--blue-500);
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  box-shadow: 0 10px 24px rgba(30, 111, 255, 0.45);
  border: 2px solid #fff;
}
.map-pin::after {
  content: "";
  position: absolute;
  inset: 6px;
  background: #fff;
  border-radius: 50%;
}
.map-info { padding: 36px; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; gap: 12px; }
.map-tag {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--blue-500);
  background: rgba(30, 111, 255, 0.08);
  padding: 4px 12px;
  border-radius: 999px;
}
.map-info strong { font-size: 19px; color: var(--ink-900); line-height: 1.5; }
.map-info p { font-size: 14px; color: var(--ink-500); line-height: 1.8; margin: 0; }
.map-info .btn { margin-top: 6px; }

.form-card h3 { font-size: 20px; margin-bottom: 6px; }
.form-card .form-sub { font-size: 14px; color: var(--ink-500); margin-bottom: 24px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { display: flex; flex-direction: column; gap: 7px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 14px; color: var(--ink-700); font-weight: 600; }
.form-field label .req { color: #e5484d; margin-left: 4px; }
.form-field input, .form-field select, .form-field textarea {
  font-family: inherit;
  font-size: 15px;
  color: var(--ink-900);
  border: 1px solid #cfdaea;
  border-radius: 9px;
  padding: 11px 14px;
  background: #fbfdff;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}
.form-field textarea { resize: vertical; min-height: 96px; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(30, 111, 255, 0.12);
}
.form-field.err input, .form-field.err select, .form-field.err textarea { border-color: #e5484d; }
.form-field .err-msg { font-size: 12px; color: #e5484d; display: none; }
.form-field.err .err-msg { display: block; }
.privacy-note { font-size: 12.5px; color: var(--ink-300); margin-top: 16px; line-height: 1.7; }
.form-actions { margin-top: 22px; display: flex; align-items: center; gap: 16px; }
.form-status { font-size: 14px; display: none; padding: 12px 16px; border-radius: 10px; }
.form-status.show { display: block; }
.form-status.ok { background: #eafaf1; color: #1c7c46; border: 1px solid #bfe8cf; }
.form-status.info { background: #eef4ff; color: var(--blue-600); border: 1px solid #cfe0fb; }

.map-slot {
  margin-top: 40px;
  border-radius: 16px;
  border: 1px dashed #c9d4e4;
  background: repeating-linear-gradient(45deg, #f4f7fb, #f4f7fb 14px, #eef2f8 14px, #eef2f8 28px);
  height: 240px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--ink-300);
  font-size: 14px;
  text-align: center;
  padding: 20px;
}

/* --------------------------------------------------------------------------
   返回顶部
   -------------------------------------------------------------------------- */
.back-top {
  position: fixed;
  right: 26px;   /* 与聊窗浮球同列对齐（浮球 bottom:92px，本按钮 bottom:26px） */
  bottom: 26px;
  width: 54px;   /* 与浮球同尺寸，成套观感 */
  height: 54px;
  border-radius: 50%;
  border: 1px solid #E3EAF3;
  background: #fff;
  color: #1E6FFF;
  font-size: 20px;
  font-weight: 600;
  box-shadow: 0 10px 26px rgba(23, 35, 61, .14);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 0.25s, transform 0.25s, background 0.2s;
  z-index: 90;
}
.back-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-top:hover { background: #F0F6FF; }
@media (max-width: 767px) {
  .back-top { right: 16px; bottom: 16px; width: 48px; height: 48px; font-size: 18px; }
}

/* --------------------------------------------------------------------------
   响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1439px) {
  .hero-home h1 { font-size: 48px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .support-list { grid-template-columns: repeat(3, 1fr); }
  .flow-steps { grid-template-columns: repeat(4, 1fr); }
  .flow-steps-6 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 1023px) {
  .section { padding: 64px 0; }
  .hero-home h1 { font-size: 40px; }
  .page-hero h1 { font-size: 34px; }
  .main-nav, .header-cta { display: none; }
  .menu-toggle { display: flex; }
  .main-nav.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--navy-900);
    padding: 12px 20px 20px;
    gap: 4px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 18px 30px rgba(5, 12, 24, 0.4);
  }
  .main-nav.open a { padding: 13px 16px; }
  .main-nav.open a.active::after { display: none; }
  .split, .about-intro, .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .arch-layer { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
  .map-card { grid-template-columns: 1fr; }
  .map-visual { min-height: 200px; }
  .map-info { padding: 26px 22px; }
  .container { padding: 0 20px; }
  .hero-home-inner { padding-top: 72px; padding-bottom: 90px; }
  .hero-home h1 { font-size: 31px; }
  .hero-sub { font-size: 16px; }
  .page-hero-inner { padding: 64px 0 68px; }
  .grid-4 { grid-template-columns: 1fr; }
  .flow-steps { grid-template-columns: repeat(2, 1fr); }
  .flow-steps-6 { grid-template-columns: repeat(2, 1fr); }
  .support-list { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .section-head h2 { font-size: 26px; }
  .cta-band h2 { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .compare-table thead { display: none; }
  .compare-table td { display: block; border-bottom: none; padding: 4px 18px; }
  .compare-table tbody th { display: block; width: auto; border-bottom: none; padding-bottom: 0; }
  .compare-table tbody tr { display: block; border-bottom: 1px solid var(--line); padding: 10px 0; }
  .video-shell .video-play { width: 64px; height: 64px; }
  .video-shell .video-play svg { width: 24px; height: 24px; }
  /* 手机端显示品牌名：两行排布，宽度随视口收缩，确保汉堡菜单按钮不被挤出屏幕 */
  .header-inner { gap: 12px; padding: 0 16px; }
  .brand { gap: 8px; min-width: 0; }
  .menu-toggle { flex-shrink: 0; }
  .brand img.brand-logo { height: clamp(16px, 5vw, 20px); }
  .brand .brand-cn {
    display: block;
    min-width: 0;
    font-size: clamp(11px, 3.3vw, 13px);
    letter-spacing: 1px;
    padding-left: 8px;
    line-height: 1.2;
    white-space: nowrap;
  }
  .brand .brand-cn .suffix {
    display: block;
    font-size: clamp(7.5px, 2.4vw, 9.5px);
    letter-spacing: 0;
    margin-top: 3px;
    white-space: nowrap;
  }
  /* 副标题已独占一行时，前置的「-」去掉 */
  .brand .brand-cn .suffix .dash { display: none; }
  /* 大屏监控示意图：手机改单列堆叠，避免三列过挤 */
  .bigscreen-mock { grid-template-columns: 1fr; grid-template-rows: none; font-size: 10px; }
  .bigscreen-mock .kpi { grid-column: auto; }
  .bigscreen-mock .map { grid-row: auto; min-height: 150px; }
}
.form-status.success { background: #eafaf1; color: #1c7c46; border: 1px solid #bfe8cf; }
.form-status.error { background: #fdeeee; color: #c0392b; border: 1px solid #f5c6cb; }

/* 深蓝海报卡面：深底衬托，图片等比放入 16:9 区域 */
.product-card .p-visual.p-visual-dark { background: #0b1830; }

/* 图即卡面变体：容器高度跟随图片原始比例（铺满无留边无裁切） */
.product-card .p-visual.p-visual-raw { aspect-ratio: auto; }
.product-card .p-visual.p-visual-raw img:not(.scenario-split-img) { height: auto; }

/* 竖屏手机截图（小程序）：16:9 统一区域内居中放大 */
.product-card .p-visual.p-visual-phone {
  background: linear-gradient(168deg, #eaf2fa, #d9e6f4);
}
.product-card .p-visual.p-visual-phone img:not(.scenario-split-img) {
  width: auto;
  height: 97%;
  max-width: 94%;
  object-fit: contain;
  border-radius: 14px;
  box-shadow: 0 16px 36px rgba(15, 43, 82, 0.20);
}

/* 配套说明卡：图形化示意区（数据监控 + 视频监控），与产品图卡结构对称 */
.product-card .p-visual.p-visual-note {
  background:
    radial-gradient(420px 200px at 78% 0%, rgba(30, 111, 255, 0.12), transparent 62%),
    linear-gradient(168deg, #eaf2fa, #d9e6f4);
}
.combine-demo { display: flex; align-items: center; gap: 14px; }
.combine-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  background: #fff;
  border: 1px solid rgba(30, 111, 255, 0.18);
  border-radius: 14px;
  padding: 16px 18px;
  box-shadow: 0 10px 24px rgba(15, 43, 82, 0.08);
  min-width: 118px;
}
.combine-chip .combine-ic {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(30, 111, 255, 0.1);
  color: var(--blue-500);
  display: flex;
  align-items: center;
  justify-content: center;
}
.combine-chip .combine-ic svg { width: 20px; height: 20px; }
.combine-chip b { font-size: 14px; color: var(--ink-900); }
.combine-chip .combine-sub { font-size: 11px; color: var(--ink-500); }
.combine-plus {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--blue-500);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 600;
  box-shadow: 0 6px 16px rgba(30, 111, 255, 0.35);
  flex: none;
}

/* 页脚二维码并排：公众号 + 抖音 */
.qr-pair { display: flex; gap: 16px; align-items: flex-start; }
.qr-pair .qr-item { flex: 0 0 auto; text-align: center; }
.qr-pair .qr-slot { width: 96px; height: 96px; }
.qr-pair .qr-tip { white-space: nowrap; }