:root {
  --navy: #0b1f3a;
  --navy-2: #123056;
  --navy-3: #1a3d68;
  --cyan: #1aa6c9;
  --cyan-2: #3ec6e8;
  --text: #1c2430;
  --muted: #5b6778;
  --line: #e4e9f0;
  --bg: #f4f7fb;
  --white: #ffffff;
  --shadow: 0 12px 32px rgba(11, 31, 58, 0.08);
  --radius: 14px;
  --header-h: 72px;
  --max: 1160px;
}
[data-animate]:not(.animate__animated) { opacity: 0; }
@media (prefers-reduced-motion: reduce) {
  [data-animate]:not(.animate__animated) { opacity: 1; }
}
html, body { margin: 0; padding: 0; }
html {
  scrollbar-gutter: stable;
  scrollbar-width: thin;
  overflow-x: hidden;
  overflow-x: clip;
  max-width: 100%;
}
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb {
  background: #c1c1c1;
  border-radius: 10px;
  border: 2px solid #f1f1f1;
}
::-webkit-scrollbar-thumb:hover { background: #a8a8a8; }
::-webkit-scrollbar-corner { background: transparent; }
body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  overflow-x: hidden;
  overflow-x: clip;
  max-width: 100%;
}
/* 覆盖 animate.css 的 ±100% 左右入场，避免撑出横向滚动条 */
@keyframes fadeInLeft {
  from { opacity: 0; transform: translate3d(-28px, 0, 0); }
  to { opacity: 1; transform: translate3d(0, 0, 0); }
}
@keyframes fadeInRight {
  from { opacity: 0; transform: translate3d(28px, 0, 0); }
  to { opacity: 1; transform: translate3d(0, 0, 0); }
}
@-webkit-keyframes fadeInLeft {
  from { opacity: 0; -webkit-transform: translate3d(-28px, 0, 0); }
  to { opacity: 1; -webkit-transform: translate3d(0, 0, 0); }
}
@-webkit-keyframes fadeInRight {
  from { opacity: 0; -webkit-transform: translate3d(28px, 0, 0); }
  to { opacity: 1; -webkit-transform: translate3d(0, 0, 0); }
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%;}
.preview-banner {
  position: sticky;
  top: 0;
  z-index: 80;
  padding: 8px 16px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: #0b1f3a;
  background: #ffe58f;
  border-bottom: 1px solid #f0c040;
}
.page-main {
  min-height: calc(100vh - 280px);
  overflow-x: hidden;
  overflow-x: clip;
  max-width: 100%;
}
.wrap { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: .18s ease;
}
.btn-primary { background: var(--cyan); color: #fff; }
.btn-primary:hover { background: #1489a8; }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.45); }
.btn-ghost:hover { background: rgba(255,255,255,.1); }
.btn-outline { background: #fff; color: var(--navy); border-color: var(--line); }
.btn-outline:hover { border-color: var(--cyan); color: var(--cyan); }
.kicker {
  display: inline-block;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}
h1, h2, h3 { margin: 0 0 12px; line-height: 1.25; color: var(--navy); }
.lead { color: var(--muted); font-size: 16px; max-width: 640px; }
.section { padding: 72px 0; }
.section-alt { background: var(--bg); }
.section-head { margin-bottom: 36px; }
.section-head .lead { margin: 8px 0 0; }
.section-head.center { text-align: center; }
.section-head.center .lead { margin-left: auto; margin-right: auto; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(26, 166, 201, .28);
  box-shadow: 0 16px 36px rgba(26, 166, 201, .12);
}
a.card { color: inherit; text-decoration: none; }
/* 产品卡片网格：末行自动居中 */
.prod-card-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  justify-content: center;
}
.prod-card-grid > .card,
.prod-card-grid > a.card,
.prod-card-grid > .sol-highlight-card {
  box-sizing: border-box;
  width: 100%;
}
.prod-card-grid.is-2 > .card,
.prod-card-grid.is-2 > a.card,
.prod-card-grid.is-2 > .sol-highlight-card {
  flex: 0 1 calc((100% - 22px) / 2);
  max-width: calc((100% - 22px) / 2);
}
.prod-card-grid.is-1 > .card,
.prod-card-grid.is-1 > a.card,
.prod-card-grid.is-1 > .sol-highlight-card {
  flex: 0 1 100%;
  max-width: 520px;
}
.prod-card-grid.is-3 > .card,
.prod-card-grid.is-3 > a.card,
.prod-card-grid.is-3 > .sol-highlight-card {
  flex: 0 1 calc((100% - 44px) / 3);
  max-width: calc((100% - 44px) / 3);
}
.prod-card-grid.is-4 > .card,
.prod-card-grid.is-4 > a.card,
.prod-card-grid.is-4 > .sol-highlight-card {
  flex: 0 1 calc((100% - 54px) / 4);
  max-width: calc((100% - 54px) / 4);
}
.prod-card-grid.is-4 { gap: 18px; }
.prod-card-grid.is-highlight { gap: 20px; }
.prod-card-grid.is-highlight.is-2 > .sol-highlight-card {
  flex: 0 1 calc((100% - 20px) / 2);
  max-width: calc((100% - 20px) / 2);
}
.prod-card-grid.is-highlight.is-3 > .sol-highlight-card {
  flex: 0 1 calc((100% - 40px) / 3);
  max-width: calc((100% - 40px) / 3);
}
.prod-card-grid.is-highlight.is-4 > .sol-highlight-card {
  flex: 0 1 calc((100% - 60px) / 4);
  max-width: calc((100% - 60px) / 4);
}
.prod-refs-more {
  display: flex;
  justify-content: center;
  margin-top: 28px;
}
.lead.rich-text p { margin: 0 0 8px; }
.lead.rich-text p:last-child { margin-bottom: 0; }
.rich-text p { margin: 0 0 8px; }
.rich-text p:last-child { margin-bottom: 0; }
.prod-pain-solution { color: var(--navy); }
.list-check-html ul { margin: 0; padding: 0; list-style: none; }
.list-check-html li { position: relative; padding: 6px 0 6px 22px; color: var(--muted); }
.list-check-html li::before { content: ""; position: absolute; left: 0; top: 14px; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); }
.prod-ref-list {
  display: grid;
  gap: 14px;
}
.prod-ref-list-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 18px;
  align-items: stretch;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition: .18s ease;
}
.prod-ref-list-item:hover {
  border-color: rgba(26, 166, 201, .45);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.prod-ref-list-cover {
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg);
  min-height: 110px;
}
.prod-ref-list-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  min-height: 110px;
}
.prod-ref-list-body h3 {
  margin: 8px 0 6px;
  font-size: 18px;
}
.prod-ref-list-body p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}
.prod-ref-list-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.prod-ref-list-meta .prod-ref-extra { margin-top: 0; }
.prod-card-grid.is-compact .card-img,
.sol-prod-card.is-compact .card-img { height: 120px; }
.sol-prod-card.is-compact .card-body { padding: 14px; }
.sol-prod-card.is-compact h3 { font-size: 16px; }
.sol-prod-card.is-compact p {
  font-size: 13px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
@media (max-width: 760px) {
  .prod-ref-list-item { grid-template-columns: 1fr; }
  .prod-ref-list-cover img { min-height: 160px; }
}
.card-cover {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
  background: #eef3f8;
}
.card-cover-wrap { width: 100%; }
.card-carousel {
  border: none;
  border-radius: 0;
  background: #eef3f8;
}
.card-carousel .prod-carousel-btn {
  width: 30px;
  height: 30px;
  font-size: 18px;
}
.card-carousel .prod-carousel-dots { bottom: 8px; }
.card-carousel .prod-carousel-dot { width: 6px; height: 6px; }
.card-body { padding: 22px; }
.card h3 { font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.card-img { height: 180px; object-fit: cover; width: 100%; background: var(--navy); }
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: #e8f7fc;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 600;
}
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(11, 31, 58, .94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: .04em;
}
.logo span { color: var(--cyan-2); font-weight: 500; font-size: 12px; letter-spacing: .16em; }
.nav { display: flex; gap: 4px; align-items: center; }
.nav-item { position: relative; }
.nav-item > a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: rgba(255,255,255,.82);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 14px;
  white-space: nowrap;
}
.nav-item > a:hover,
.nav-item > a.active,
.nav-item:hover > a { color: #fff; background: rgba(255,255,255,.08); }
.nav-has-dropdown > a::after {
  content: "";
  width: 0;
  height: 0;
  margin-top: 2px;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  opacity: .7;
}
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  z-index: 60;
  min-width: 220px;
  padding-top: 10px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(-50%) translateY(6px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
}
.nav-item:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(11, 31, 58, .16);
  padding: 8px;
}
.nav-dropdown-mega {
  left: 50%;
  min-width: auto;
  width: max-content;
  max-width: min(960px, calc(100vw - 32px));
}
.nav-mega-panel {
  padding: 14px 20px 18px;
  min-width: min(100%, calc(var(--nav-cols, 2) * 180px + 40px));
}
.nav-mega-head {
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}
.nav-mega-head .nav-dropdown-all {
  display: inline-block;
  margin: 0;
  padding: 0 !important;
  border: 0;
  border-radius: 0;
  font-size: 14px;
}
.nav-mega-grid {
  display: grid;
  grid-template-columns: repeat(var(--nav-cols, 2), minmax(168px, 1fr));
  gap: 0 0;
  align-items: start;
}
.nav-mega-col {
  min-width: 168px;
  padding: 0 24px;
  border-right: 1px solid var(--line);
}
.nav-mega-col:first-child { padding-left: 0; }
.nav-mega-col:last-child { padding-right: 0; border-right: 0; }
.nav-mega-title {
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
  color: var(--navy);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
}
.nav-mega-col a {
  display: block;
  padding: 7px 0;
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
  line-height: 1.45;
}
.nav-mega-col a:hover {
  color: var(--cyan);
  background: transparent;
}
.nav-mega-col a.active {
  color: var(--cyan);
  font-weight: 700;
}
.nav-dropdown-panel:not(.nav-mega-panel) a {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--text);
  font-size: 13px;
  line-height: 1.45;
  white-space: normal;
}
.nav-dropdown-panel:not(.nav-mega-panel) a:hover {
  background: #f0f7fb;
  color: var(--navy);
}
.nav-dropdown-panel:not(.nav-mega-panel) a.active {
  background: #e8f7fc;
  color: var(--cyan);
  font-weight: 600;
}
.nav-dropdown-all {
  font-weight: 700;
  color: var(--navy) !important;
  border-bottom: 1px solid var(--line);
  border-radius: 8px 8px 0 0 !important;
  margin-bottom: 4px;
  padding-bottom: 10px !important;
}
.nav-dropdown-all.active {
  color: var(--cyan) !important;
}
.header-cta { display: flex; gap: 10px; align-items: center; }
.menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255,255,255,.2);
  background: transparent;
  color: #fff;
  border-radius: 8px;
}
.hero {
  position: relative;
  min-height: 560px;
  padding: 88px 0 72px;
  background:
    linear-gradient(120deg, rgba(11,31,58,.92) 0%, rgba(18,48,86,.78) 48%, rgba(26,166,201,.35) 100%),
    url("/images/scene-dam.png") center/cover no-repeat;
  color: #fff;
}
.hero h1 { color: #fff; font-size: 44px; max-width: 720px; }
.hero .lead { color: rgba(255,255,255,.82); font-size: 18px; }
.hero-actions { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; }
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 48px;
}
.stat {
  padding: 16px 18px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 12px;
  background: rgba(255,255,255,.06);
}
.stat b { display: block; font-size: 22px; color: var(--cyan-2); }
.stat b i { font-style: normal; font-size: 14px; font-weight: 600; color: rgba(255,255,255,.82); }
.stat span { font-size: 13px; color: rgba(255,255,255,.75); }
.home-hero-visual {
  padding-top: 0;
  background: linear-gradient(180deg, #0b2038 0%, #0e2a4a 60%, var(--bg) 100%);
}
.home-hero-visual img {
  width: 100%;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, .14);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .35);
}
.home-empower-img {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--line);
  margin-bottom: 24px;
}
.home-metric-band { background: #0b2038; }
.home-metric-stats {
  margin-top: 0;
  grid-template-columns: repeat(4, 1fr);
}
.page-hero {
  padding: 56px 0 40px;
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
}
.page-hero h1 { color: #fff; font-size: 32px; }
.page-hero p { color: rgba(255,255,255,.78); margin: 0; max-width: 720px; }
.page-hero .hero-stats { margin-top: 32px; }
.error-page {
  min-height: calc(100vh - 220px);
  display: flex;
  align-items: center;
  padding: 72px 0 88px;
  background:
    radial-gradient(ellipse 70% 50% at 50% -10%, rgba(26, 166, 201, .12), transparent 60%),
    linear-gradient(180deg, #f7fbfd 0%, #fff 55%);
}
.error-page-inner {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.error-code {
  display: inline-block;
  font-size: 88px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.06em;
  color: var(--cyan);
  text-shadow: 0 10px 30px rgba(26, 166, 201, .18);
}
.error-code.is-warn { color: #c67a12; text-shadow: 0 10px 30px rgba(198, 122, 18, .16); }
.error-page h1 {
  margin: 18px 0 12px;
  font-size: 28px;
  color: var(--navy);
}
.error-page .lead {
  margin: 0 auto 28px;
  max-width: 520px;
}
.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 28px;
}
.error-actions .btn-ghost {
  color: var(--navy);
  border-color: var(--line);
  background: #fff;
}
.error-actions .btn-ghost:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  background: #f3fbfd;
}
.error-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  justify-content: center;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}
.error-links a {
  font-size: 13px;
  color: var(--muted);
  font-weight: 600;
}
.error-links a:hover { color: var(--cyan); }
@media (max-width: 640px) {
  .error-code { font-size: 64px; }
  .error-page { padding: 48px 0 64px; min-height: calc(100vh - 180px); }
  .error-page h1 { font-size: 22px; }
}
.crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 13px;
  color: rgba(255,255,255,.5);
}
.crumb a { color: rgba(255,255,255,.72); }
.crumb a:hover { color: #fff; }
.case-card { display: flex; flex-direction: column; height: 100%; transition: transform .18s ease, box-shadow .18s ease; }
.case-card:hover { transform: translateY(-4px); box-shadow: 0 16px 32px rgba(11, 31, 58, .12); }
.case-card .card-img { height: 180px; }
.case-card h3 { margin: 10px 0 0; }
.case-sub { margin: 8px 0 10px; color: var(--navy); font-size: 14px; font-weight: 600; opacity: .72; }
.case-more { display: inline-block; margin-top: 14px; color: var(--cyan); font-weight: 600; font-size: 14px; }
.case-empty { margin: 8px 0 0; color: var(--muted); }
.case-detail {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 28px;
  align-items: start;
}
.case-cover {
  width: 100%;
  max-height: 380px;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid var(--line);
  margin-bottom: 22px;
}
.case-detail-actions { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; }
.case-side { display: grid; gap: 12px; }
.case-fact {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  box-shadow: var(--shadow);
}
.case-fact b { display: block; font-size: 12px; color: var(--muted); font-weight: 600; margin-bottom: 6px; }
.case-fact span { color: var(--navy); font-size: 14px; line-height: 1.55; }
.sol-hero {
  padding: 56px 0 48px;
  background: linear-gradient(135deg, #071526 0%, #0b1f3a 45%, #123056 100%);
  color: #fff;
}
.sol-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 36px;
  align-items: center;
}
.sol-hero-copy h1 { color: #fff; font-size: 34px; margin-bottom: 14px; }
.sol-hero-copy p { color: rgba(255,255,255,.78); margin: 0; max-width: 640px; font-size: 16px; line-height: 1.75; }
.sol-hero-copy .kicker { color: var(--cyan-2); }
.sol-hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.sol-btn-light { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.28); }
.sol-btn-light:hover { background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.45); color: #fff; }
.sol-hero-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 18px 40px rgba(0,0,0,.28);
  background: rgba(255,255,255,.06);
}
.sol-narrow { max-width: 860px; }
.sol-block { padding: 64px 0; }
.sol-sec-head { margin-bottom: 28px; }
.sol-sec-head.center { text-align: center; }
.sol-sec-head.center .lead { margin: 10px auto 0; }
.sol-sec-kicker {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 8px;
}
.sol-lead { margin: 0; font-size: 17px; color: var(--muted); line-height: 1.8; }
.sol-pain-grid,
.sol-highlight-grid,
.sol-value-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}
.sol-pain-grid { counter-reset: sol-pain; }
.sol-value-grid { counter-reset: sol-value; }
.sol-highlight-grid > .sol-highlight-card,
.sol-pain-grid > .sol-pain-card,
.sol-value-grid > .sol-value-card {
  box-sizing: border-box;
  flex: 0 1 calc((100% - 20px) / 2);
  max-width: calc((100% - 20px) / 2);
  width: 100%;
}

/* 行业痛点：序号水印 + 顶部金色强调 */
.sol-pain-card {
  position: relative;
  counter-increment: sol-pain;
  padding: 22px 22px 20px 68px;
  border: 1px solid #e6ebf2;
  border-top: 3px solid #c9a227;
  border-radius: var(--radius);
  background: #f7f9fc;
  box-shadow: none;
  transition: transform .22s ease, box-shadow .22s ease, background .22s ease;
}
.sol-pain-card::before {
  content: counter(sol-pain, decimal-leading-zero);
  position: absolute;
  left: 16px;
  top: 20px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: .02em;
  line-height: 1;
  color: rgba(11, 31, 58, .16);
}
.sol-pain-card:hover {
  transform: translateY(-3px);
  background: #fff;
  box-shadow: 0 12px 28px rgba(11, 31, 58, .08);
}
.sol-pain-card h3 {
  margin: 0 0 10px;
  font-size: 17px;
  color: var(--navy);
  line-height: 1.4;
}
.sol-pain-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

/* 方案亮点：顶部青蓝渐变条 + 标题左侧短竖线 */
.sol-highlight-card {
  position: relative;
  padding: 26px 24px 22px;
  border: 1px solid rgba(26, 166, 201, .22);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 10px 28px rgba(26, 166, 201, .08);
  overflow: hidden;
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.sol-highlight-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, #0b1f3a 0%, #1aa6c9 100%);
}
.sol-highlight-card h3 {
  margin: 0 0 10px;
  padding-left: 14px;
  border-left: 3px solid var(--cyan);
  font-size: 17px;
  color: var(--navy);
  line-height: 1.4;
}
.sol-highlight-card p,
.sol-highlight-card .rich-text {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}
.sol-highlight-card .rich-text p { margin: 0 0 8px; color: inherit; font-size: inherit; }
.sol-highlight-card .rich-text p:last-child { margin-bottom: 0; }
.sol-highlight-card:hover {
  transform: translateY(-3px);
  border-color: rgba(26, 166, 201, .45);
  box-shadow: 0 16px 34px rgba(26, 166, 201, .14);
}

/* 方案价值：圆形序号徽章 + 浅青渐变底 */
.sol-value-card {
  position: relative;
  counter-increment: sol-value;
  padding: 22px 22px 20px 78px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(135deg, #eef8fb 0%, #fff 48%);
  box-shadow: 0 8px 22px rgba(11, 31, 58, .05);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.sol-value-card::before {
  content: counter(sol-value, decimal-leading-zero);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0b1f3a 0%, #1aa6c9 100%);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1;
  box-shadow: 0 6px 14px rgba(11, 31, 58, .2);
}
.sol-value-card h3 {
  margin: 0 0 10px;
  font-size: 17px;
  color: var(--navy);
  line-height: 1.4;
}
.sol-value-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}
.sol-value-card:hover {
  transform: translateY(-3px);
  border-color: rgba(26, 166, 201, .35);
  box-shadow: 0 14px 30px rgba(11, 31, 58, .1);
}

.sol-arch { display: grid; gap: 12px; max-width: 920px; margin: 0 auto; }
.sol-arch-layer {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  align-items: center;
  padding: 16px 18px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.sol-arch-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: .04em;
}
.sol-arch-items { display: flex; flex-wrap: wrap; gap: 8px; }
.sol-arch-items span {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  background: #e8f7fc;
  color: #1489a8;
  font-size: 13px;
  font-weight: 600;
}
.sol-arch-items a {
  color: inherit;
  text-decoration: none;
}
.sol-arch-items a:hover { text-decoration: underline; }
.sol-arch-layer:nth-child(1) { background: linear-gradient(90deg, #fff 0%, #f3fbfd 100%); }
.sol-arch-layer:nth-child(2) { background: linear-gradient(90deg, #fff 0%, #eef6fb 100%); }
.sol-arch-layer:nth-child(3) { background: linear-gradient(90deg, #fff 0%, #e8f2fa 100%); }
.sol-arch-layer:nth-child(4) { background: linear-gradient(90deg, #fff 0%, #e3eef8 100%); }
.sol-tabs { margin-top: 8px; }
.sol-tab-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 24px;
}
.sol-tab-btn {
  height: 40px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--navy);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: .18s ease;
}
.sol-tab-btn:hover { border-color: var(--cyan); color: var(--cyan); }
.sol-tab-btn.is-active { background: var(--navy); color: #fff; border-color: var(--navy); }
.sol-tab-panel { display: none; }
.sol-tab-panel.is-active { display: block; }
.sol-func-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.sol-func-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}
.sol-func-card h3 { font-size: 17px; margin-bottom: 12px; }
.sol-func-card .list-check li { font-size: 14px; }
.sol-items { columns: 2; column-gap: 28px; }
.sol-items-html { max-width: none; }
.sol-items-html ul { margin: 0; padding: 0; list-style: none; }
.sol-items-html li { position: relative; padding: 6px 0 6px 22px; color: var(--muted); }
.sol-items-html li::before { content: ""; position: absolute; left: 0; top: 14px; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); }
.sol-items-html p { margin: 0 0 12px; }
.sol-items-html img { border-radius: 12px; margin: 8px 0 16px; }
.sol-prod-card { display: flex; flex-direction: column; height: 100%; }
.prod-feature.is-flip .prod-feature-media-wrap { order: 2; }
.prod-feature.is-flip .prod-feature-body { order: 1; }
.prod-feature-stack {
  display: flex;
  flex-direction: column;
  gap: 28px;
  max-width: 920px;
  margin: 0 auto;
}
.prod-feature-stack.is-media-bottom .prod-feature-media-wrap { order: 2; }
.prod-feature-stack.is-media-bottom .prod-feature-body { order: 1; }
.prod-feature-media-wrap { width: 100%; }
.prod-feature-media {
  display: block;
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
}
.prod-carousel {
  position: relative;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--card, #fff);
  overflow: hidden;
}
.prod-carousel-viewport { overflow: hidden; }
.prod-carousel-track {
  display: flex;
  transition: transform .45s ease;
  will-change: transform;
}
.prod-carousel-slide {
  flex: 0 0 100%;
  min-width: 100%;
}
.prod-carousel-slide .prod-feature-media { border: none; border-radius: 0; }
.prod-carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: rgba(15, 23, 42, .55);
  color: #fff;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
  transition: background .2s ease;
}
.prod-carousel-btn:hover { background: rgba(15, 23, 42, .78); }
.prod-carousel-prev { left: 10px; }
.prod-carousel-next { right: 10px; }
.prod-carousel-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 10px;
  display: flex;
  justify-content: center;
  gap: 8px;
  z-index: 2;
}
.prod-carousel-dot {
  width: 8px;
  height: 8px;
  border: none;
  border-radius: 50%;
  padding: 0;
  background: rgba(255, 255, 255, .45);
  cursor: pointer;
  transition: transform .2s ease, background .2s ease;
}
.prod-carousel-dot.is-active {
  background: #fff;
  transform: scale(1.15);
}
@media (max-width: 960px) {
  .prod-feature.is-flip .prod-feature-media-wrap,
  .prod-feature.is-flip .prod-feature-body { order: unset; }
  .prod-feature-stack.is-media-bottom .prod-feature-media-wrap,
  .prod-feature-stack.is-media-bottom .prod-feature-body { order: unset; }
}
.sol-index-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.sol-index-card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform .18s ease, box-shadow .18s ease;
}

.sol-index-card:hover {
   transform: translateY(-4px); 
   box-shadow: 0 16px 40px rgba(26,166,201, 0.12) !important;
    border-color: rgba(26,166,201, 0.2) !important;
  }

.sol-index-cover {
  position: relative;
  overflow: hidden;
  height: 158px;
  background: var(--navy);
}
.sol-index-card .card-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1);
  transition: transform .45s;
}
.sol-index-card:hover .card-img {
  transform: scale(1.08);
}
.sol-index-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 2;
  padding: 3px 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, #0b1f3a 0%, #1aa6c9 100%);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .04em;
  line-height: 1.4;
  text-shadow: 0 1px 2px rgba(0, 0, 0, .45);
  box-shadow: 0 4px 12px rgba(11, 31, 58, .35), inset 0 1px 0 rgba(255, 255, 255, .18);
  border: 1px solid rgba(255, 255, 255, .22);
}
.sol-index-go {
  position: absolute;
  right: 14px;
  bottom: 24px;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #0b1f3a;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  box-shadow: 0 5px 10px rgba(11, 31, 58, .35);
  opacity: 0;
  transform: translateX(8px) scale(.92);
  transition: opacity .28s, transform .28s;
  pointer-events: none;
}
.sol-index-card:hover .sol-index-go {
  opacity: 1;
  transform: translateX(0) scale(1);
}
.sol-index-card .card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding-right: 20px;
  padding-bottom: 20px;
}
.sol-index-card h3 { margin: 10px 0 8px; font-size: 17px; }
.sol-index-card p {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.sol-index-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.sol-index-metrics b { display: block; color: var(--cyan); font-size: 18px; line-height: 1.2; }
.sol-index-metrics span { font-size: 12px; color: var(--muted); }
.sol-cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.sol-cap-item {
  padding: 24px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.sol-cap-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(11, 31, 58, .1);
  border-color: rgba(26, 166, 201, .28);
  background: rgba(26, 166, 201, 0.05);
}
.sol-cap-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.sol-cap-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(26, 166, 201, .12) 0%, rgba(11, 31, 58, .06) 100%);
  color: var(--cyan);
  font-size: 20px;
  line-height: 1;
  border: 1px solid rgba(26, 166, 201, .18);
  transition: background .22s ease, color .22s ease, border-color .22s ease;
}
.sol-cap-icon i{
  font-size: 20px;
}

.sol-cap-head h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.35;
}
.sol-cap-item p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.sol-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.sol-flow-item {
  position: relative;
  padding: 24px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.sol-flow-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 32px rgba(11, 31, 58, .1);
  border-color: rgba(26, 166, 201, .28);
  background: rgba(26, 166, 201, 0.05);
}
.sol-flow-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.sol-flow-num {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 35px;
  height: 35px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0b1f3a 0%, #1aa6c9 100%);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1;
  box-shadow: 0 4px 12px rgba(11, 31, 58, .18);
}
.sol-flow-head h3 { margin: 0; font-size: 18px; line-height: 1.35; }
.sol-flow-item p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.cta-band {
  background: var(--navy);
  color: #fff;
  padding: 48px 0;
}
.cta-band h2 { color: #fff; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer {
  background: #071526;
  color: rgba(255,255,255,.72);
  padding: 48px 0 20px;
  font-size: 14px;
}
.footer h4 { color: #fff; margin: 0 0 14px; font-size: 15px; }
.footer a:hover { color: var(--cyan-2); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px; }
.footer-copy {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,.08);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12px;
}
.spec-table { width: 100%; border-collapse: collapse; background: #fff; }
.spec-table th, .spec-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.spec-table th { background: var(--bg); color: var(--navy); width: 28%; }
.prod-specs-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin-top: 12px;
  align-items: start;
}
.prod-specs-split .spec-table { margin: 0; }
.prod-specs-media {
  max-width: 920px;
  margin: 0 auto 20px;
}
.prod-specs-text {
  max-width: 920px;
  margin: 0 auto 20px;
}
@media (max-width: 960px) {
  .prod-specs-split { grid-template-columns: 1fr; }
}
.list-check { margin: 0; padding: 0; list-style: none; }
.list-check li { position: relative; padding: 6px 0 6px 22px; color: var(--muted); }
.list-check li::before { content: ""; position: absolute; left: 0; top: 14px; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); }
.form { display: grid; gap: 14px; }
.form > div,
.contact-form-grid > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.form label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
  line-height: 1.4;
}
.form input, .form select, .form textarea {
  display: block;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  font: inherit;
  background: #fff;
  color: var(--text);
  line-height: 1.4;
}
.form textarea { min-height: 120px; resize: vertical; }
.contact-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  min-width: 0;
}
.note { font-size: 13px; color: var(--muted); }
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 28px;
  align-items: start;
}
.contact-panel-head h3 { margin-bottom: 6px; }
.contact-panel-head .note { margin: 0 0 18px; }
.contact-alert {
  margin: 0 0 16px;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.5;
}
.contact-alert.is-ok {
  background: #eaf8f0;
  color: #0a8f4e;
  border: 1px solid #bfe8cf;
}
.contact-alert.is-err {
  background: #fff2f0;
  color: #c0392b;
  border: 1px solid #f0c4be;
}
.contact-submit { width: 100%; margin-top: 4px; box-sizing: border-box; }
.contact-info-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.contact-info-list li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: start;
}
.contact-info-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #e8f7fc;
  color: var(--cyan);
  font-size: 16px;
}
.contact-info-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 4px;
}
.contact-info-list a,
.contact-info-list span {
  color: var(--navy);
  font-size: 15px;
  font-weight: 600;
  word-break: break-all;
}
.contact-info-list a:hover { color: var(--cyan); }
.contact-coop-card { margin-top: 18px; }
.contact-coop-list { margin-top: 12px; }
.contact-map-section .lead { margin-left: auto; margin-right: auto; }
.contact-map-frame {
  margin-top: 8px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow);
}
.contact-map-frame iframe {
  display: block;
  width: 100%;
  height: 420px;
  border: 0;
  background: #eef3f8;
}
.contact-map-canvas {
  width: 100%;
  height: 420px;
  background: #eef3f8;
  z-index: 0;
}
.contact-map-marker {
  background: transparent;
  border: 0;
}
.contact-map-pin {
  display: block;
  width: 22px;
  height: 22px;
  margin: 0 auto;
  border-radius: 50% 50% 50% 0;
  background: var(--cyan);
  border: 3px solid #fff;
  box-shadow: 0 4px 12px rgba(11, 31, 58, 0.28);
  transform: rotate(-45deg);
}
.contact-map-popup {
  min-width: 160px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--navy);
}
.contact-map-popup strong { display: block; margin-bottom: 4px; }
.contact-map-popup p { margin: 0; color: var(--muted); font-weight: 400; }
.leaflet-container { font: inherit; }
.leaflet-control-attribution {
  font-size: 11px !important;
  background: rgba(255,255,255,.85) !important;
}
.contact-map-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 16px 18px;
  border-top: 1px solid var(--line);
  background: #f7f9fc;
}
.contact-map-addr { display: inline-flex; align-items: center; gap: 8px; }
@media (max-width: 960px) {
  .contact-layout { grid-template-columns: 1fr; }
  .contact-form-grid { grid-template-columns: 1fr; }
  .contact-map-frame iframe,
  .contact-map-canvas { height: 320px; }
}
.quote {
  margin: 20px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--cyan);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
}
.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 28px; }
.tab {
  height: 38px;
  line-height: 38px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--navy);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.tab.active { background: var(--navy); color: #fff; border-color: var(--navy); }
.news-list { display: grid; gap: 16px; }
.news-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 18px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}
.news-item img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: 10px;
  background: var(--navy);
}
.news-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.news-meta time { font-size: 12px; color: var(--muted); }
.news-item h3 { font-size: 18px; }
.news-article { max-width: 800px; }
.news-article p { color: var(--muted); font-size: 16px; }
.about-intro { align-items: start; }
.about-hero-img {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  display: block;
}
.about-intro-text { margin-top: 12px; max-width: none; }
.privacy-article {
  max-width: 860px;
  margin: 0 auto;
}
.privacy-article p,
.about-intro-text p { margin: 0 0 14px; line-height: 1.75; color: var(--muted); }
.privacy-article p:last-child,
.about-intro-text p:last-child { margin-bottom: 0; }
.privacy-article h2,
.privacy-article h3,
.about-intro-text h2,
.about-intro-text h3 { color: var(--navy); margin: 22px 0 10px; }
.privacy-article ul,
.about-intro-text ul { margin: 0 0 14px; padding-left: 1.2em; color: var(--muted); }
.about-intro-actions { margin-top: 18px; }
.about-product-cards { margin-top: 20px; }
.about-arch-link { color: inherit; }
.about-arch-link:hover { color: var(--cyan); }
.news-article img,
.news-article video,
.sol-items-html img,
.sol-items-html video {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  margin: 8px 0 16px;
}
.news-article video,
.sol-items-html video { width: 100%; background: #0b1f3a; }
.news-cover {
  width: 100%;
  max-height: 360px;
  object-fit: cover;
  border-radius: 14px;
  margin-bottom: 24px;
}
.mobile-nav {
  display: none;
  background: var(--navy-2);
  padding: 8px 20px 16px;
}
.mobile-nav > a,
.mnav-group > a:first-child {
  display: block;
  color: #fff;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.mnav-group { margin-bottom: 2px; }
.mnav-sub-title {
  padding: 8px 0 4px 14px;
  color: rgba(255,255,255,.45);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
}
.mnav-sub {
  display: block;
  color: rgba(255,255,255,.72);
  padding: 8px 0 8px 14px;
  font-size: 13px;
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.mnav-sub:hover,
.mnav-sub.active,
.mobile-nav > a.active,
.mnav-group > a:first-child.active { color: var(--cyan-2); }
@media (max-width: 1100px) {
  .nav, .header-cta .hide-m { display: none; }
  .menu-btn { display: inline-flex; align-items: center; justify-content: center; }
  .mobile-nav.open { display: block; }
}
@media (max-width: 960px) {
  .grid-3, .grid-4, .hero-stats, .footer-grid, .sol-index-grid, .sol-cap-grid, .sol-flow { grid-template-columns: 1fr 1fr; }
  .grid-2, .cta-inner, .case-detail, .sol-hero-inner, .sol-func-grid { grid-template-columns: 1fr; display: grid; }
  .sol-highlight-grid > .sol-highlight-card,
  .sol-pain-grid > .sol-pain-card,
  .sol-value-grid > .sol-value-card {
    flex-basis: 100%;
    max-width: 100%;
  }
  .prod-card-grid.is-3 > .card,
  .prod-card-grid.is-3 > a.card,
  .prod-card-grid.is-3 > .sol-highlight-card,
  .prod-card-grid.is-4 > .card,
  .prod-card-grid.is-4 > a.card,
  .prod-card-grid.is-4 > .sol-highlight-card {
    flex-basis: calc((100% - 22px) / 2);
    max-width: calc((100% - 22px) / 2);
  }
  .sol-arch-layer { grid-template-columns: 1fr; gap: 10px; }
  .sol-items { columns: 1; }
  .hero h1 { font-size: 32px; }
}
@media (max-width: 640px) {
  .grid-3, .grid-4, .hero-stats, .footer-grid, .grid-2, .sol-index-grid, .sol-cap-grid, .sol-flow { grid-template-columns: 1fr; }
  .prod-card-grid.is-2 > .card,
  .prod-card-grid.is-2 > a.card,
  .prod-card-grid.is-2 > .sol-highlight-card,
  .prod-card-grid.is-3 > .card,
  .prod-card-grid.is-3 > a.card,
  .prod-card-grid.is-3 > .sol-highlight-card,
  .prod-card-grid.is-4 > .card,
  .prod-card-grid.is-4 > a.card,
  .prod-card-grid.is-4 > .sol-highlight-card {
    flex-basis: 100%;
    max-width: 100%;
  }
  .wrap { width: calc(100% - 28px); }
  .section { padding: 48px 0; }
  .news-item { grid-template-columns: 1fr; }
}

/* ---------- 全站右下角悬浮按钮 ---------- */
.site-float-dock {
  position: fixed;
  right: 22px;
  bottom: 28px;
  z-index: 1200;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}
.site-float-item {
  position: relative;
  display: flex;
  justify-content: flex-end;
}
.site-float-btn {
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  height: 52px;
  min-width: 52px;
  padding: 0;
  border: none;
  border-radius: 999px;
  color: #fff;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 10px 28px rgba(11, 31, 58, .22);
  transition: width .28s ease, background .2s ease, transform .2s ease, box-shadow .2s ease, gap .28s ease, padding .28s ease;
  overflow: hidden;
  white-space: nowrap;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
}
.site-float-btn i {
  width: 20px;
  text-align: center;
  font-size: 20px;
  flex: 0 0 auto;
}
.site-float-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(11, 31, 58, .28);
}
.site-float-btn.is-wechat { background: #07c160; color: #fff; }
.site-float-btn.is-wechat:hover { background: #06ad56; color: #fff; }
.site-float-btn.is-demo {
  width: 52px;
  padding: 0 16px;
  background: var(--cyan);
  color: #fff;
}
.site-float-btn.is-demo:hover { background: #1489a8; color: #fff; }
.site-float-demo-text {
  display: inline-block;
  max-width: 0;
  opacity: 0;
  overflow: hidden;
  transform: translateX(6px);
  transition: max-width .28s ease, opacity .22s ease, transform .28s ease;
}
.site-float-btn.is-phone {
  background: #f0a202;
  color: #1a2a3a;
  box-shadow: 0 10px 28px rgba(240, 162, 2, .35);
}
.site-float-btn.is-phone:hover {
  background: #ffa61a;
  color: #1a2a3a;
  box-shadow: 0 14px 32px rgba(240, 162, 2, .45);
}
.site-float-btn.is-top {
  background: #fff;
  color: var(--navy);
  border: 1px solid rgba(255, 255, 255, .9);
  box-shadow: 0 10px 28px rgba(11, 31, 58, .28), 0 0 0 1px rgba(11, 31, 58, .08);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}
.site-float-btn.is-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.site-float-btn.is-top:hover {
  background: #f3f8fc;
  color: var(--cyan);
  box-shadow: 0 14px 32px rgba(11, 31, 58, .32);
}
.site-float-qr {
  position: absolute;
  right: 0;
  bottom: calc(100% + 12px);
  width: 168px;
  padding: 12px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 16px 40px rgba(11, 31, 58, .18);
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px) scale(.96);
  transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
  pointer-events: none;
}
.site-float-qr::after {
  content: "";
  position: absolute;
  right: 18px;
  bottom: -6px;
  width: 12px;
  height: 12px;
  background: #fff;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transform: rotate(45deg);
}
.site-float-qr img {
  display: block;
  width: 140px;
  height: 140px;
  object-fit: contain;
  margin: 0 auto 8px;
  border-radius: 8px;
  background: #f5f8fb;
}
.site-float-qr span {
  display: block;
  color: var(--navy);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.4;
}
.site-float-wechat.is-open .site-float-qr {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
@media (hover: hover) and (pointer: fine) {
  .site-float-btn.is-demo:hover,
  .site-float-btn.is-demo:focus-visible {
    width: 138px;
    gap: 8px;
  }
  .site-float-btn.is-demo:hover .site-float-demo-text,
  .site-float-btn.is-demo:focus-visible .site-float-demo-text {
    max-width: 80px;
    opacity: 1;
    transform: translateX(0);
  }
}
@media (prefers-reduced-motion: reduce) {
  .site-float-btn,
  .site-float-demo-text,
  .site-float-qr,
  .site-float-btn.is-top {
    transition: none;
  }
}
@media (max-width: 640px) {
  .site-float-dock {
    right: 14px;
    bottom: 18px;
    gap: 10px;
  }
  .site-float-btn {
    height: 48px;
    min-width: 48px;
  }
  .site-float-btn.is-demo { width: 48px; }
  .site-float-qr { width: 156px; }
  .site-float-qr img { width: 128px; height: 128px; }
}