:root {
  --blue: #185FA5;
  --blue-dark: #0C447C;
  --blue-light: #E6F1FB;
  --teal: #0F6E56;
  --teal-light: #E1F5EE;
  --ink: #1f2733;
  --muted: #5a6472;
  --line: #e3e7ec;
  --bg: #f6f8fa;
  --white: #ffffff;
  --amber: #854F0B;
  --amber-light: #FAEEDA;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.7;
  font-size: 15px;
}
a { text-decoration: none; color: inherit; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* Header */
header {
  position: sticky; top: 0; z-index: 50;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s ease;
}
header.header-scrolled { box-shadow: 0 2px 18px rgba(12,68,124,.10); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 18px; }
.logo-mark {
  width: 34px; height: 34px; border-radius: 8px;
  background: var(--blue); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 600;
}
.logo-sub { display: block; font-size: 11px; color: var(--muted); font-weight: 400; line-height: 1.2; }
.logo-img { height: 46px; width: auto; display: block; }
.nav-links { display: flex; gap: 26px; font-size: 15px; }
.nav-links a { color: var(--muted); white-space: nowrap; }
.nav-links a:hover, .nav-links a.active { color: var(--blue); }
.nav-links a.nav-login { color: var(--blue); font-weight: 600; display: inline-flex; align-items: center; gap: 5px; }
.nav-links a.nav-login .nav-login-ico { width: 16px; height: 16px; flex: 0 0 auto; }
.nav-links a.nav-login:hover { color: var(--blue-dark); }
.btn {
  display: inline-block; padding: 10px 22px; border-radius: 8px;
  font-size: 15px; cursor: pointer; border: 1px solid transparent;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); }
.btn-outline { border-color: var(--blue); color: var(--blue); }
.btn-outline:hover { background: var(--blue-light); }

/* Hero */
html { scroll-behavior: smooth; }
.hero {
  position: relative; overflow: hidden;
  background: #0a2c50;
  color: #fff; padding: 110px 0 120px;
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background:
    linear-gradient(100deg, rgba(7,30,56,.94) 0%, rgba(12,68,124,.82) 42%, rgba(10,50,92,.42) 78%, rgba(8,38,72,.30) 100%),
    linear-gradient(to top, rgba(6,24,46,.65) 0%, rgba(6,24,46,0) 30%),
    url('images/hero-factory.jpg?v=20261030a') center 35% / cover no-repeat;
  animation: heroZoom 16s ease-out both;
}
.hero > .wrap { position: relative; z-index: 2; }
@keyframes heroZoom { from { transform: scale(1.08); } to { transform: scale(1); } }
.hero h1 { font-size: 40px; line-height: 1.3; font-weight: 600; max-width: 720px; text-shadow: 0 2px 12px rgba(0,0,0,.35); animation: fadeUp .9s ease .15s both; }
.hero p { margin-top: 18px; font-size: 17px; opacity: .95; max-width: 640px; text-shadow: 0 1px 8px rgba(0,0,0,.35); animation: fadeUp .9s ease .35s both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: none; } }
.hero-actions { margin-top: 32px; display: flex; gap: 14px; }
.hero .btn-outline { border-color: rgba(255,255,255,.7); color: #fff; }
.hero .btn-outline:hover { background: rgba(255,255,255,.12); }
.hero-tags { margin-top: 40px; display: flex; gap: 10px; flex-wrap: wrap; animation: fadeUp .9s ease .55s both; }
.hero-tags span {
  background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.25);
  padding: 5px 14px; border-radius: 999px; font-size: 13px;
}

/* Scroll reveal（JS 加类触发） */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* Sections */
section { padding: 72px 0; }
.section-alt { background: var(--bg); }
.sec-head { text-align: center; margin-bottom: 44px; }
.sec-head h2 { font-size: 28px; font-weight: 600; }
.sec-head p { color: var(--muted); margin-top: 10px; font-size: 15px; }

/* Product grid */
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card {
  background: var(--white); border: 1px solid var(--line); border-radius: 12px;
  padding: 24px 22px;
  transition: border-color .15s, transform .25s ease, box-shadow .25s ease;
}
.card:hover { border-color: var(--blue); transform: translateY(-6px); box-shadow: 0 14px 30px rgba(12,68,124,.12); }
.card h3 { font-size: 16px; font-weight: 600; }
.card p { font-size: 13px; color: var(--muted); margin-top: 6px; }
/* 产品卡片底部「查看详情」入口（卡片整体可点，这里只是视觉引导） */
.card-cta {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 14px; padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13px; font-weight: 600; color: var(--blue);
  transition: color .2s ease, border-color .2s ease;
}
.card-cta::after {
  content: "→"; font-size: 14px; line-height: 1;
  transition: transform .25s cubic-bezier(.22,.61,.36,1);
}
.card:hover .card-cta { color: var(--blue-dark); border-top-color: rgba(24,95,165,.35); }
.card:hover .card-cta::after { transform: translateX(3px); }
.card-icon {
  display: inline-block; padding: 3px 11px; border-radius: 999px;
  background: var(--blue-light); color: var(--blue);
  font-size: 12px; font-weight: 600; margin-bottom: 12px;
}
.card-img {
  height: 196px; border-radius: 8px; overflow: hidden;
  background: #ffffff; border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px; padding: 4px;
}
.card-img img {
  width: 100%; height: 100%; object-fit: contain; display: block;
  transition: transform .35s ease;
}
.card:hover .card-img img { transform: scale(1.06); }
.card-img .ph { font-size: 13px; color: #b4b2a9; }

/* Feature two-column */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: stretch; }
.feature-box {
  position: relative; overflow: hidden;
  background: var(--white); border: 1px solid var(--line); border-radius: 14px;
  padding: 32px 30px; height: 100%;
  box-shadow: 0 2px 10px rgba(12,68,124,.04);
  transition: transform .25s ease, box-shadow .25s ease, border-color .2s;
}
.feature-box:hover { transform: translateY(-4px); border-color: var(--blue); box-shadow: 0 18px 36px rgba(12,68,124,.12); }
.feature-icon {
  width: 54px; height: 54px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.icon-saas { background: var(--teal-light); color: var(--teal); }
.icon-broker { background: var(--blue-light); color: var(--blue); }
.feature-box h3 { font-size: 18px; font-weight: 600; margin-bottom: 10px; }
.feature-box p { color: var(--muted); font-size: 14px; }
.feature-box ul { margin-top: 14px; padding-left: 18px; color: var(--muted); font-size: 14px; }
.feature-box li { margin-bottom: 6px; }
/* 角落水印图标，增强工业感 */
.feature-box::after {
  content: ""; position: absolute; right: -18px; bottom: -18px;
  width: 120px; height: 120px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(24,95,165,.10), rgba(24,95,165,0) 70%);
  pointer-events: none;
}
.tag-free {
  display: inline-block; background: var(--teal-light); color: var(--teal);
  font-size: 12px; padding: 3px 10px; border-radius: 999px; margin-bottom: 12px;
}
.tag-api {
  display: inline-block; background: var(--blue-light); color: var(--blue);
  font-size: 12px; padding: 3px 10px; border-radius: 999px; margin-bottom: 12px;
}

/* 解决方案区：浅色工厂底纹 */
#solutions { position: relative; overflow: hidden; background: #eef3f8; }
#solutions::before {
  content: ""; position: absolute; inset: 0;
  background: url('images/factory-light.jpg?v=20261028d') center 50% / cover no-repeat;
}
#solutions::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,.60) 0%, rgba(255,255,255,.38) 35%, rgba(255,255,255,.42) 72%, rgba(255,255,255,.86) 100%);
}
#solutions > .wrap { position: relative; z-index: 1; }
#solutions .sec-head h2 { text-shadow: 0 1px 10px rgba(255,255,255,.95), 0 0 26px rgba(255,255,255,.8); }
#solutions .sec-head p { text-shadow: 0 1px 8px rgba(255,255,255,.95), 0 0 20px rgba(255,255,255,.8); }
#solutions .feature-box {
  background: #fff;
  border-color: rgba(24,95,165,.18);
  box-shadow: 0 12px 32px rgba(12,68,124,.14);
}
#solutions .feature-box::before {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--teal), var(--blue));
}
#solutions .feature-box::after { display: none; }
#solutions .feature-box h3 { color: var(--blue-dark); font-size: 19px; font-weight: 700; letter-spacing: .01em; }
#solutions .feature-box p { color: #39434f; font-size: 14.5px; }
#solutions .feature-box ul { color: #2c3742; font-weight: 500; }
#solutions .feature-box li { margin-bottom: 8px; }
#solutions .feature-box li::marker { color: var(--blue); font-size: 1.1em; }
#solutions .feature-box:hover { box-shadow: 0 22px 46px rgba(12,68,124,.22); }

/* 四步部署区：浅色车间底纹 */
#connect { position: relative; overflow: hidden; background: #f4f8fc; }
#connect::before {
  content: ""; position: absolute; inset: 0;
  background: url('images/factory-aisle.jpg?v=20261028d') center 45% / cover no-repeat;
}
#connect::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,.86) 0%, rgba(255,255,255,.58) 40%, rgba(255,255,255,.66) 76%, rgba(255,255,255,.92) 100%);
}
#connect > .wrap { position: relative; z-index: 1; }
#connect .sec-head h2, #connect .sec-head p {
  text-shadow: 0 1px 10px rgba(255,255,255,.95), 0 0 24px rgba(255,255,255,.8);
}

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.step {
  position: relative;
  background: var(--white); border: 1px solid var(--line); border-radius: 14px; padding: 22px;
  box-shadow: 0 2px 10px rgba(12,68,124,.04);
  transition: transform .25s ease, box-shadow .25s ease, border-color .2s;
}
.step:hover { transform: translateY(-4px); border-color: var(--blue); box-shadow: 0 18px 36px rgba(12,68,124,.12); }
.step-head { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.step-icon {
  width: 42px; height: 42px; border-radius: 11px; flex: 0 0 auto;
  background: linear-gradient(150deg, var(--blue-light), #d8e8f9);
  color: var(--blue-dark);
  display: flex; align-items: center; justify-content: center;
}
.step-num { color: var(--blue); font-weight: 600; font-size: 12px; letter-spacing: .1em; }
.step h3 { font-size: 15px; font-weight: 600; margin: 0 0 6px; }
.step p { font-size: 13px; color: var(--muted); }
#connect .step {
  background: #fff; border-color: rgba(24,95,165,.16);
  box-shadow: 0 10px 26px rgba(12,68,124,.12);
}
#connect .step:hover { box-shadow: 0 22px 44px rgba(12,68,124,.2); }
#connect .step h3 { color: var(--ink); font-size: 16px; font-weight: 700; }
#connect .step p { color: #4a5563; font-size: 13.5px; }

/* 客户案例区：回到灰色 section-alt 底 */
#cases > .wrap { position: relative; z-index: 1; }
#cases .card {
  background: #fff; border-color: var(--line);
  box-shadow: 0 4px 14px rgba(12,68,124,.06);
}
#cases .card:hover { box-shadow: 0 16px 34px rgba(12,68,124,.14); }
#cases .card h3 { color: var(--blue-dark); font-weight: 700; font-size: 17px; }
#cases .card p { color: #39434f; font-size: 13.5px; }
#cases .card-icon { background: var(--blue-light); color: var(--blue-dark); font-weight: 600; }

/* 案例卡片：顶部车间场景图 */
#cases .grid { grid-template-columns: repeat(3, 1fr); }
#cases .case-card { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
#cases .case-photo {
  position: relative; aspect-ratio: 16 / 9; overflow: hidden;
  background: #e8edf3;
}
#cases .case-photo::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(9,32,58,.16) 0%, rgba(9,32,58,0) 42%);
}
#cases .case-photo img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .55s cubic-bezier(.22,.61,.36,1);
}
#cases .case-card:hover .case-photo img { transform: scale(1.055); }
#cases .case-tag {
  position: absolute; left: 14px; top: 14px; z-index: 2; margin: 0;
  padding: 4px 12px; background: rgba(255,255,255,.94); color: var(--blue-dark);
  font-size: 12px; font-weight: 700; letter-spacing: .3px;
  box-shadow: 0 3px 10px rgba(9,32,58,.16);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
#cases .case-body {
  padding: 18px 20px 22px; display: flex; flex-direction: column;
  gap: 7px; flex: 1;
}
#cases .case-body p { line-height: 1.65; }

/* Product page */
.product-hero { background: var(--blue-light); padding: 56px 0; }
.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--blue); }
.product-hero-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: center; }
.product-visual {
  background: var(--white); border: 1px solid var(--line); border-radius: 16px;
  height: 320px; display: flex; align-items: center; justify-content: center;
  position: relative; padding: 24px; overflow: hidden;
}
.product-visual img {
  max-width: 100%; max-height: 100%; object-fit: contain; display: block;
  transition: transform .4s ease;
}
.product-visual:hover img { transform: scale(1.05); }
.hero-cta { margin-top: 26px; display: flex; gap: 12px; flex-wrap: wrap; }
.product-hero h1 { font-size: 30px; font-weight: 600; }
.product-hero .lead { color: var(--muted); margin-top: 12px; font-size: 16px; }
.hero-points { margin-top: 22px; list-style: none; }
.hero-points li { padding: 7px 0 7px 26px; position: relative; font-size: 15px; }
.hero-points li::before {
  content: ""; position: absolute; left: 0; top: 13px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--teal);
  -webkit-mask: none; mask: none;
}
.hero-points li::after {
  content: "✓"; position: absolute; left: 3px; top: 9px;
  color: #fff; font-size: 12px;
}

/* Tables */
table { width: 100%; border-collapse: collapse; background: var(--white); }
.tbl-wrap { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
th, td { padding: 13px 18px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--line); }
th { background: var(--bg); font-weight: 600; width: 220px; }
tr:last-child td { border-bottom: none; }
.note { font-size: 13px; color: var(--muted); margin-top: 12px; }

/* CTA band */
.cta-band {
  background: var(--blue-dark); color: #fff; padding: 56px 0; text-align: center;
}
.cta-band h2 { font-size: 24px; font-weight: 600; }
.cta-band p { opacity: .85; margin-top: 10px; }
.cta-band .btn { margin-top: 24px; background: #fff; color: var(--blue-dark); }

/* Contact form */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
input, select, textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--line);
  border-radius: 8px; font-size: 14px; font-family: inherit; background: var(--white);
  color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--blue-light); border-color: var(--blue); }
.contact-info li { list-style: none; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.contact-info span { color: var(--muted); display: inline-block; width: 90px; }
.contact-info li.addr { display: flex; }
.contact-info li.addr span { flex: none; }
.contact-info li.addr em { font-style: normal; flex: 1; }

/* Footer */
footer { background: #22262c; color: #aab1ba; padding: 48px 0 32px; font-size: 13px; }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; }
.foot-grid h4 { color: #fff; font-size: 14px; font-weight: 600; margin-bottom: 14px; }
.foot-grid a { display: block; margin-bottom: 8px; color: #aab1ba; }
.foot-grid a:hover { color: #fff; }
.foot-bottom { margin-top: 36px; padding-top: 20px; border-top: 1px solid #3a3f47; text-align: center; color: #7a828c; }

/* ===== AI 能力 ===== */
.ai-section {
  position: relative; overflow: hidden;
  background: #ffffff;
  color: var(--ink); padding: 82px 0 86px;
  border-top: 1px solid rgba(24,95,165,.08);
  border-bottom: 1px solid rgba(24,95,165,.07);
}
.ai-section::before { display: none; }
.ai-section::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(18,165,148,.42) 35%, rgba(24,95,165,.35) 70%, transparent);
}
.ai-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: stretch;
}
.ai-copy { display: flex; flex-direction: column; justify-content: center; }
.ai-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; letter-spacing: .08em; color: #0F6E56;
  background: rgba(18,165,148,.10); border: 1px solid rgba(18,165,148,.30);
  padding: 6px 14px; border-radius: 999px;
}
.ai-kicker::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: #12a594;
  box-shadow: 0 0 0 4px rgba(18,165,148,.14);
}
.ai-head { margin-bottom: 40px; }
.ai-head .ai-kicker { margin-bottom: 18px; }
.ai-copy-lead { font-size: 14.5px; line-height: 1.8; color: #3d4753; }
.ai-copy-sub { font-size: 12.5px; letter-spacing: .02em; color: var(--muted); margin: 10px 0 18px; }
.ai-points { list-style: none; margin-top: 0; display: grid; gap: 30px; }
.ai-points li { padding-left: 16px; border-left: 2px solid rgba(18,165,148,.45); }
.ai-points b { display: block; font-size: 15px; font-weight: 600; color: var(--ink); }
.ai-points span { font-size: 13.5px; color: var(--muted); }
.ai-cta { margin-top: 34px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.ai-cta .btn-primary { background: var(--blue); box-shadow: 0 8px 20px rgba(24,95,165,.22); }
.ai-cta .btn-primary:hover { background: var(--blue-dark); }
.ai-free { font-size: 12.5px; color: var(--muted); }
.ai-note {
  margin-top: 12px; font-size: 12.5px; color: #7d8794; line-height: 1.6;
  padding-left: 12px; border-left: 2px solid rgba(24,95,165,.18);
}

/* 日报示例卡 */
.ai-mock { perspective: 1400px; }
.report {
  background: #fff; color: var(--ink); border-radius: 16px;
  padding: 22px 22px 15px;
  box-shadow: 0 20px 48px rgba(12,68,124,.16), 0 2px 8px rgba(12,68,124,.06), 0 0 0 1px rgba(24,95,165,.12);
  transform: rotateY(-6deg) rotateX(2deg);
  transition: transform .55s cubic-bezier(.2,.9,.25,1), box-shadow .55s ease;
}
.ai-mock:hover .report { transform: none; box-shadow: 0 30px 66px rgba(12,68,124,.20), 0 0 0 1px rgba(24,95,165,.12); }
.report-head { display: flex; align-items: center; gap: 9px; }
.report-ai { font-size: 14.5px; font-weight: 600; }
.report-done {
  font-size: 11.5px; color: #0F6E56; background: #E1F5EE;
  border-radius: 999px; padding: 2px 9px;
}
.report-time { margin-left: auto; font-size: 11px; color: #98a0ac; }
.report-title { font-size: 20px; font-weight: 700; margin-top: 12px; line-height: 1.35; }
.report-sub { font-size: 12.5px; color: var(--muted); margin-top: 5px; }
.report-util { margin-top: 14px; }
.util-label { font-size: 11.5px; color: #98a0ac; }
.util-num { font-size: 36px; font-weight: 700; line-height: 1.1; color: #0d2b3a; }
.util-num span { font-size: 17px; font-weight: 600; margin-left: 2px; }
.util-track { height: 7px; border-radius: 999px; background: #eef1f5; margin-top: 6px; overflow: hidden; }
.util-track i { display: block; height: 100%; border-radius: 999px; background: linear-gradient(90deg, #12a594, #66cfae); }
.report-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; margin-top: 14px; }
.st { background: #f7f9fb; border-radius: 10px; padding: 9px 10px; }
.st-name { display: flex; align-items: center; gap: 5px; font-size: 11px; color: var(--muted); }
.st-name i { width: 6px; height: 6px; border-radius: 50%; flex: none; }
.st b { display: block; font-size: 17px; font-weight: 700; margin-top: 1px; line-height: 1.3; }
.st b em { font-size: 11px; font-weight: 500; font-style: normal; color: var(--muted); margin-left: 3px; }
.st small { font-size: 11px; font-weight: 600; }
.st-green .st-name i { background: #12a594; }
.st-green small { color: #12a594; }
.st-amber .st-name i { background: #E8892B; }
.st-amber small { color: #C77517; }
.st-red .st-name i { background: #C8452F; }
.st-red small { color: #C8452F; }
.report-power {
  margin-top: 13px; background: #FDF6EE; border: 1px solid #F3E2CC;
  border-radius: 10px; padding: 9px 11px;
}
.power-label { font-size: 11px; color: #9a7b52; }
.power-num { font-size: 13.5px; font-weight: 600; margin-top: 2px; }
.power-num em { font-size: 18px; font-style: normal; font-weight: 700; color: #C8452F; }
.power-note { font-size: 11px; color: #9a7b52; display: block; margin-top: 2px; }
.report-rank { margin-top: 14px; }
.rank-head { display: flex; justify-content: space-between; font-size: 11px; color: #98a0ac; }
.rank-row { margin-top: 8px; }
.rank-top { display: flex; justify-content: space-between; font-size: 12.5px; }
.bar { height: 6px; border-radius: 999px; background: #eef1f5; margin-top: 4px; overflow: hidden; }
.bar i { display: block; height: 100%; border-radius: 999px; background: #E8892B; }
.bar i.green { background: #12a594; }
.report-ask { margin-top: 14px; }
.ask-box {
  display: flex; align-items: center; gap: 10px;
  background: #f7f9fb; border: 1px solid var(--line); border-radius: 10px;
  padding: 8px 10px; font-size: 12.5px; color: #98a0ac;
}
.ask-send {
  margin-left: auto; width: 24px; height: 24px; border-radius: 50%;
  background: #12a594; color: #fff; font-style: normal; font-size: 13px;
  display: flex; align-items: center; justify-content: center; flex: none;
}
.ask-chips { display: flex; gap: 7px; margin-top: 7px; flex-wrap: wrap; }
.ask-chips span {
  font-size: 11px; color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px; padding: 3px 9px;
}
.report-note {
  margin-top: 13px; padding-top: 9px; border-top: 1px solid var(--line);
  font-size: 10.5px; color: #a7aeb9; text-align: center;
}

@media (max-width: 900px) {
  .grid, .steps { grid-template-columns: repeat(2, 1fr); }
  .two-col, .contact-grid, .product-hero-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .hero h1 { font-size: 30px; }
  .modal { padding: 14px; }
  .modal-panel { grid-template-columns: 1fr; max-height: 90vh; }
  .modal-media { border-radius: 18px 18px 0 0; padding: 20px; }
  .modal-media img { max-height: 220px; }
  .modal-body { padding: 26px 24px 28px; }
  .modal-body h3 { font-size: 22px; }
  .ai-section { padding: 56px 0 60px; }
  .ai-inner { grid-template-columns: 1fr; gap: 34px; }
  .ai-head { margin-bottom: 32px; }
  .ai-head .ai-kicker { margin-bottom: 14px; font-size: 11.5px; }
  .ai-head h2 { font-size: 22px; }
  .ai-copy-lead { font-size: 14px; }
  .ai-cta { margin-top: 24px; }
  .ai-mock { perspective: none; }
  .report { transform: none; padding: 20px 18px 14px; }
  .report-title { font-size: 19px; }
  .util-num { font-size: 36px; }
  .report-stats { grid-template-columns: 1fr 1fr 1fr; gap: 7px; }
  .st { padding: 8px; }
  .st b { font-size: 16px; }
  #cases .grid { grid-template-columns: 1fr; }
  #cases .case-photo { aspect-ratio: 16 / 8.6; }
}

@media (max-width: 640px) {
  #cases .grid { grid-template-columns: 1fr; }
}

/* 产品弹窗 */
.modal {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  padding: 24px; visibility: hidden;
}
.modal.open { visibility: visible; }
.modal-backdrop {
  position: absolute; inset: 0; background: rgba(8,24,44,.62);
  -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px);
  opacity: 0; transition: opacity .3s ease;
}
.modal.open .modal-backdrop { opacity: 1; }
.modal-panel {
  position: relative; z-index: 1;
  width: min(1020px, 94vw); max-height: 88vh; overflow: auto;
  background: var(--white); border-radius: 18px;
  display: grid; grid-template-columns: 1.05fr 1fr;
  box-shadow: 0 30px 80px rgba(6,24,46,.38);
  opacity: 0; transform: translateY(26px) scale(.94);
  transition: opacity .32s ease, transform .42s cubic-bezier(.2,.9,.25,1.04);
}
.modal.open .modal-panel { opacity: 1; transform: none; }
.modal-media {
  background: linear-gradient(160deg, #f2f6fb, #e4edf8);
  border-radius: 18px 0 0 18px; padding: 32px;
  display: flex; align-items: center; justify-content: center;
}
.modal-media img {
  max-width: 100%; max-height: 400px; object-fit: contain; display: block;
  opacity: .5; transform: scale(.92);
  transition: transform .5s cubic-bezier(.2,.9,.25,1.04) .06s, opacity .4s ease .06s;
}
.modal.open .modal-media img { opacity: 1; transform: scale(1); }
.modal-body { padding: 42px 44px 38px; }
.modal-kicker { font-size: 12px; letter-spacing: .14em; color: var(--blue); font-weight: 600; }
.modal-body h3 { font-size: 26px; font-weight: 600; margin-top: 8px; }
.modal-desc { color: var(--muted); font-size: 15px; margin-top: 12px; }
.modal-points { list-style: none; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); }
.modal-points li { position: relative; padding-left: 22px; font-size: 14px; margin-bottom: 9px; }
.modal-points li::before {
  content: ""; position: absolute; left: 4px; top: 9px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--teal);
}
.modal-actions { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; }
.modal-close {
  position: absolute; top: 12px; right: 14px; z-index: 3;
  width: 36px; height: 36px; border: none; border-radius: 50%;
  background: rgba(255,255,255,.9); color: var(--muted);
  font-size: 22px; line-height: 1; cursor: pointer;
  transition: background .2s, color .2s, transform .25s ease;
}
.modal-close:hover { background: #fff; color: var(--ink); transform: rotate(90deg); }
body.modal-open { overflow: hidden; }

/* ===== 行业案例二级页 ===== */
.case-hero-visual { height: 360px; padding: 0; }
.case-hero-visual img { width: 100%; height: 100%; object-fit: cover; }
.case-hero-visual:hover img { transform: scale(1.04); }
.case-eyebrow {
  display: inline-block; padding: 4px 12px; margin-bottom: 14px;
  border-radius: 999px; background: #fff;
  border: 1px solid rgba(24,95,165,.2);
  color: var(--blue-dark); font-size: 12px; font-weight: 700; letter-spacing: .04em;
}
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

/* 推荐配置表 */
table.plan thead th { width: auto; background: var(--bg); }
table.plan td strong { color: var(--blue-dark); font-weight: 600; }
table.plan tbody tr:hover td { background: #f8fbfe; }

/* FAQ 折叠 */
.faq-list { max-width: 880px; margin: 0 auto; }
.faq-item {
  background: var(--white); border: 1px solid var(--line); border-radius: 12px;
  padding: 0 22px; margin-bottom: 12px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.faq-item:hover { border-color: rgba(24,95,165,.3); }
.faq-item[open] { border-color: rgba(24,95,165,.3); box-shadow: 0 8px 22px rgba(12,68,124,.06); }
.faq-item summary {
  cursor: pointer; list-style: none; position: relative;
  padding: 17px 30px 17px 0; font-size: 15px; font-weight: 600; color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 2px; top: 15px;
  color: var(--blue); font-size: 19px; font-weight: 400; line-height: 1;
}
.faq-item[open] summary::after { content: "–"; }
.faq-item p { padding: 0 0 18px; color: var(--muted); font-size: 14px; line-height: 1.8; }

/* 其他场景导航卡 */
.case-nav { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.case-nav a {
  display: flex; flex-direction: column; gap: 8px;
  background: var(--white); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px 20px;
  transition: transform .22s ease, border-color .2s ease, box-shadow .22s ease;
}
.case-nav a:hover {
  transform: translateY(-4px); border-color: var(--blue);
  box-shadow: 0 14px 30px rgba(12,68,124,.12);
}
.case-nav-tag {
  align-self: flex-start; padding: 2px 10px; border-radius: 999px;
  background: var(--blue-light); color: var(--blue-dark);
  font-size: 11.5px; font-weight: 600;
}
.case-nav strong { font-size: 15.5px; font-weight: 600; color: var(--blue-dark); }
.case-nav-go { font-size: 12.5px; color: var(--blue); font-weight: 600; }

@media (max-width: 900px) {
  .grid-3, .case-nav { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .case-hero-visual { height: 240px; }
  table.plan th, table.plan td { padding: 11px 12px; font-size: 13px; }
}
@media (max-width: 640px) {
  .grid-3, .case-nav { grid-template-columns: 1fr; }
  .tbl-wrap { overflow-x: auto; }
  table.plan { min-width: 560px; }
}

/* ==== 联系页 ==== */
.page-hero {
  padding: 46px 0 42px;
  background: linear-gradient(180deg, #f2f7fd 0%, #ffffff 100%);
  border-bottom: 1px solid var(--line);
  text-align: center;
}
.page-hero .breadcrumb { text-align: center; }
.page-hero h1 { font-size: 34px; font-weight: 700; color: var(--blue-dark); letter-spacing: .01em; }
.page-hero .lead { max-width: 660px; margin: 14px auto 0; color: var(--muted); font-size: 15px; }

/* 工程师卡片 */
.eng-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.eng-card {
  background: var(--white); border: 1px solid var(--line); border-radius: 16px;
  padding: 28px 18px 22px; text-align: center;
  box-shadow: 0 2px 10px rgba(12,68,124,.04);
  transition: transform .25s ease, box-shadow .25s ease, border-color .2s;
  display: flex; flex-direction: column;
}
.eng-card:hover { transform: translateY(-4px); border-color: var(--blue); box-shadow: 0 18px 36px rgba(12,68,124,.12); }
.eng-avatar {
  width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 25px; font-weight: 700; color: #fff; letter-spacing: .02em;
  background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
}
.eng-name { font-size: 19px; font-weight: 700; color: var(--blue-dark); }
.eng-role { font-size: 12.5px; color: var(--muted); margin-top: 3px; }
.eng-phone {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  margin: 16px 0 6px; font-size: 20px; font-weight: 700; color: var(--blue);
  letter-spacing: .02em; font-variant-numeric: tabular-nums;
}
.eng-phone:hover { color: var(--blue-dark); }
.eng-phone .ph-label { font-size: 12px; font-weight: 400; color: var(--muted); letter-spacing: 0; }
.eng-qr-box { border-top: 1px dashed var(--line); padding-top: 18px; margin-top: 14px; }
.eng-qr { width: 152px; height: 152px; margin: 0 auto; display: block; border-radius: 10px; }
.eng-qr-tip { font-size: 12px; color: var(--muted); margin-top: 12px; line-height: 1.6; }

/* 地址与地图 */
.addr-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: 32px; align-items: stretch; }
.addr-card {
  background: var(--white); border: 1px solid var(--line); border-radius: 16px;
  padding: 30px 28px; display: flex; flex-direction: column;
  box-shadow: 0 2px 10px rgba(12,68,124,.04);
}
.addr-company { font-size: 16px; font-weight: 600; color: #1b2530; line-height: 1.5; margin-bottom: 10px; letter-spacing: .01em; }
.addr-label { font-size: 12px; letter-spacing: .1em; color: var(--blue); font-weight: 600; margin-bottom: 12px; }
.addr-text { font-size: 19px; font-weight: 700; color: var(--blue-dark); line-height: 1.55; }
.addr-meta { margin-top: 18px; }
.addr-meta li { list-style: none; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 14px; color: #39434f; display: flex; gap: 10px; }
.addr-meta li span { color: #8b95a3; min-width: 62px; flex: none; }
.map-btns { display: flex; gap: 10px; flex-wrap: wrap; margin-top: auto; padding-top: 22px; }
.map-btns a, .map-btns .map-copy {
  flex: 1 1 0; min-width: 92px; text-align: center; padding: 10px 8px;
  border: 1px solid var(--line); border-radius: 9px; font-size: 14px;
  color: var(--blue-dark); background: var(--white); transition: all .2s;
  font-family: inherit; cursor: pointer;
}
.map-btns a:hover, .map-btns .map-copy:hover { border-color: var(--blue); background: var(--blue-light); color: var(--blue); }
.map-frame { position: relative; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; background: #eaf1f9; }
.map-frame a { display: block; }
.map-frame img { width: 100%; height: 420px; object-fit: cover; display: block; transition: transform .4s ease; }
.map-frame:hover img { transform: scale(1.02); }
.map-note {
  position: absolute; left: 12px; right: 12px; bottom: 12px; z-index: 2;
  background: rgba(255,255,255,.95); border: 1px solid var(--line); border-radius: 9px;
  padding: 8px 13px; font-size: 12px; color: var(--muted); line-height: 1.5;
}

/* 服务承诺小块 */
.svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.svc-item {
  background: var(--white); border: 1px solid var(--line); border-radius: 12px;
  padding: 20px 18px; text-align: center;
}
.svc-item b { display: block; font-size: 15px; color: var(--blue-dark); margin-bottom: 6px; }
.svc-item span { font-size: 13px; color: var(--muted); line-height: 1.6; }

@media (max-width: 1024px) {
  .eng-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
}
@media (max-width: 900px) {
  .page-hero { padding: 34px 0 30px; }
  .page-hero h1 { font-size: 27px; }
  .eng-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .addr-grid { grid-template-columns: 1fr; }
  .svc-grid { grid-template-columns: 1fr 1fr; }
  .map-frame img { height: 320px; }
}
@media (max-width: 640px) {
  .eng-grid { grid-template-columns: 1fr; }
  .eng-qr { width: 168px; height: 168px; }
  .svc-grid { grid-template-columns: 1fr; }
  .logo-img { height: 38px; }
}

/* 尊重系统减少动效设置 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero::before, .hero h1, .hero p, .hero-tags { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .card, .card-img img { transition: none; }
  .modal-panel, .modal-media img, .modal-backdrop { transition: none; }
}

/* ===== 联系工程师：悬浮触点 + 联系弹窗 ===== */
.ct-fab {
  position: fixed; right: 24px; bottom: 26px; z-index: 90;
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 20px; border: none; border-radius: 999px; cursor: pointer;
  background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
  color: #fff; font-family: inherit; font-size: 15px; font-weight: 600; letter-spacing: .01em;
  box-shadow: 0 12px 28px rgba(12,68,124,.32);
  transition: transform .22s ease, box-shadow .22s ease;
}
.ct-fab:hover { transform: translateY(-3px); box-shadow: 0 18px 38px rgba(12,68,124,.42); }
.ct-fab:active { transform: translateY(-1px); }
.ct-fab svg { width: 17px; height: 17px; display: block; }

.ct-dock { display: none; }
.ct-dock-btn {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 7px;
  height: 50px; border: none; border-radius: 12px; cursor: pointer;
  font-family: inherit; font-size: 16px; font-weight: 600; letter-spacing: .02em;
  text-decoration: none;
}
.ct-dock-btn svg { width: 18px; height: 18px; }
.ct-dock-btn.primary { background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%); color: #fff; }
.ct-dock-btn.ghost { background: #fff; color: var(--blue); border: 1px solid var(--line); }

.ct-modal .contact-panel {
  width: min(432px, 100%); grid-template-columns: 1fr;
  border-radius: 20px; overflow: auto;
}
.ct-head { padding: 34px 32px 0; text-align: center; }
.ct-head h3 { font-size: 25px; font-weight: 700; color: var(--blue-dark); margin-top: 8px; letter-spacing: .01em; }
.ct-sub { font-size: 13.5px; color: var(--muted); margin-top: 10px; line-height: 1.65; }
.ct-body { padding: 22px 32px 30px; }

.ct-call {
  display: flex; align-items: center; gap: 14px;
  padding: 15px 18px; border-radius: 14px; text-decoration: none;
  background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
  box-shadow: 0 10px 22px rgba(12,68,124,.22);
  transition: transform .2s ease, box-shadow .2s ease;
}
.ct-call:hover { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(12,68,124,.3); }
.ct-call-ico { width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,.2); display: flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.ct-call-ico svg { width: 20px; height: 20px; color: #fff; }
.ct-call-txt { display: flex; flex-direction: column; gap: 3px; }
.ct-call-txt b { color: #fff; font-size: 15px; font-weight: 600; letter-spacing: .01em; }
.ct-call-txt em { color: rgba(255,255,255,.92); font-style: normal; font-size: 21px; font-weight: 700; letter-spacing: .03em; font-variant-numeric: tabular-nums; }

.ct-or { display: flex; align-items: center; gap: 12px; margin: 22px 0 18px; color: var(--muted); font-size: 12px; }
.ct-or::before, .ct-or::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.ct-qr-box { text-align: center; }
.ct-qr { width: 204px; height: 204px; display: block; margin: 0 auto; border-radius: 12px; border: 1px solid var(--line); }
.ct-qr-tip { font-size: 13px; color: var(--muted); margin-top: 12px; line-height: 1.7; }
.ct-qr-tip b { color: var(--blue); font-weight: 600; }

.ct-actions { display: flex; gap: 10px; margin-top: 20px; }
.ct-btn {
  flex: 1; display: inline-flex; align-items: center; justify-content: center;
  height: 42px; border-radius: 10px; border: 1px solid var(--line);
  background: #fff; color: var(--blue); font-family: inherit; font-size: 13.5px; font-weight: 600;
  text-decoration: none; cursor: pointer; transition: border-color .2s, color .2s, background .2s;
}
.ct-btn:hover { border-color: var(--blue); background: #f5f9ff; }
.ct-foot { font-size: 11.5px; color: var(--muted); text-align: center; margin-top: 18px; line-height: 1.75; }

@media (max-width: 768px) {
  .ct-fab { display: none; }
  .ct-dock {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
    display: flex; gap: 10px; padding: 9px 14px calc(9px + env(safe-area-inset-bottom));
    background: rgba(255,255,255,.96);
    -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
    border-top: 1px solid var(--line);
    box-shadow: 0 -6px 20px rgba(12,68,124,.08);
  }
  body.has-ct-dock { padding-bottom: 78px; }
  .ct-modal .contact-panel { width: 100%; }
  .ct-head { padding: 30px 24px 0; }
  .ct-body { padding: 20px 24px 26px; }
  .ct-qr { width: 186px; height: 186px; }
  .ct-call-txt em { font-size: 20px; }
}

/* ===== 询价表单：提交后的引导卡片 ===== */
.form-slot { min-width: 0; }
.form-done {
  background: var(--white); border: 1px solid var(--line); border-radius: 16px;
  padding: 26px 24px; box-shadow: 0 2px 10px rgba(12,68,124,.04);
}
.fd-head { display: flex; gap: 13px; align-items: flex-start; }
.fd-ico {
  flex: 0 0 auto; width: 38px; height: 38px; border-radius: 50%;
  background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
  color: #fff; font-size: 19px; display: flex; align-items: center; justify-content: center;
}
.fd-head h3 { font-size: 18.5px; font-weight: 700; color: var(--blue-dark); line-height: 1.4; }
.fd-head p { font-size: 13px; color: var(--muted); margin-top: 6px; line-height: 1.65; }
.fd-call {
  display: flex; align-items: center; gap: 12px; margin-top: 20px;
  padding: 12px 16px; border-radius: 12px; text-decoration: none;
  background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
  box-shadow: 0 10px 22px rgba(12,68,124,.2);
}
.fd-call-ico {
  flex: 0 0 auto; width: 36px; height: 36px; border-radius: 50%;
  background: rgba(255,255,255,.2);
  display: flex; align-items: center; justify-content: center;
}
.fd-call-ico svg { width: 18px; height: 18px; color: #fff; }
.fd-call-txt { display: flex; flex-direction: column; gap: 2px; }
.fd-call-txt b { color: #fff; font-size: 13.5px; font-weight: 600; }
.fd-call-txt em {
  color: #fff; font-style: normal; font-size: 19px; font-weight: 700;
  letter-spacing: .03em; font-variant-numeric: tabular-nums;
}
.fd-qr-wrap { text-align: center; margin-top: 20px; }
.fd-qr { width: 172px; height: 172px; border-radius: 10px; border: 1px solid var(--line); display: block; margin: 0 auto; }
.fd-tip { font-size: 12.5px; color: var(--muted); margin-top: 10px; line-height: 1.7; }
.fd-actions { display: flex; gap: 10px; margin-top: 18px; }
.fd-btn {
  flex: 1; height: 40px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: 9px; border: 1px solid var(--line); background: #fff;
  color: var(--blue); font-family: inherit; font-size: 13px; font-weight: 600;
  text-decoration: none; cursor: pointer; transition: border-color .2s, background .2s;
}
.fd-btn:hover { border-color: var(--blue); background: #f5f9ff; }

.form-privacy {
  grid-column: 1 / -1; font-size: 11.5px; color: var(--muted);
  line-height: 1.7; margin-top: -2px;
}

/* 导航新增「登录数采平台」后，中等宽度收紧间距避免拥挤 */
@media (max-width: 1080px) {
  .nav-links { gap: 18px; font-size: 14px; }
  .nav-links a.nav-login .nav-login-ico { width: 15px; height: 15px; }
}

/* ==== 导航右侧：登录按钮 + 主 CTA + 语言切换 ==== */
.nav-right { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }

/* 导航通栏：正文档位仍 1120 居中，只让 header 撑满，右侧按钮与语言切换贴到屏幕右缘 */
header > .wrap.nav {
  max-width: none;
  padding-left: clamp(20px, 3vw, 52px);
  padding-right: clamp(20px, 3vw, 52px);
}

/* 「登录数采平台」按钮：浅蓝底 + 蓝字 + 细边框，比纯文字醒目、又不与主 CTA 抢焦点 */
.btn-login {
  display: inline-flex; align-items: center; gap: 7px; white-space: nowrap;
  background: var(--blue-dark); color: #fff;
  /* 1px 实边框 + inset 半像素内描边：视觉厚度等同 1.5px，但盒模型与主按钮完全同高 */
  border: 1px solid var(--blue-dark); font-weight: 600;
  box-shadow: inset 0 0 0 .5px var(--blue-dark), 0 1px 3px rgba(12, 68, 124, .18);
}
.btn-login:hover { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn-login .nav-login-ico { width: 17px; height: 17px; flex: 0 0 auto; }

/* 语言切换：比首版更大，落在导航最右 */
.lang-switch {
  display: inline-flex; align-items: center; gap: 3px; padding: 3px;
  border: 1px solid var(--line); border-radius: 999px; background: var(--white); flex: 0 0 auto;
}
.ls-btn {
  border: 0; background: transparent; font-family: inherit;
  font-size: 13.5px; line-height: 1; font-weight: 600; letter-spacing: .02em;
  color: var(--muted); padding: 10px 13px; border-radius: 999px; cursor: pointer;
  transition: background .18s ease, color .18s ease;
}
.ls-btn:hover { color: var(--blue); }
.ls-btn.active { background: var(--blue); color: #fff; }
.ls-btn:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

/* 登录入口从导航列表移出后，列表少一项，间距略收，把宽度让给右侧按钮 */
.nav-links { gap: 23px; }

@media (max-width: 1180px) {
  .nav-right { gap: 10px; }
  .btn-login { padding: 9px 15px; font-size: 14px; }
  .ls-btn { font-size: 13px; padding: 9px 11px; }
}
@media (max-width: 1120px) {
  .nav-links { gap: 15px; font-size: 14.2px; }
  .nav-right { gap: 9px; }
  .btn-login { padding: 8px 12px; font-size: 13.5px; }
  .btn-login .nav-login-ico { width: 15px; height: 15px; }
  .ls-btn { font-size: 12.5px; padding: 9px 9px; }
}
/* 更窄：登录按钮收为纯图标，nav 列表进一步收紧，避免与 LOGO 相撞 */
@media (max-width: 1060px) {
  .nav { gap: 16px; }
  .nav-links { gap: 12px; font-size: 13.5px; }
  .btn-login { font-size: 0; gap: 0; padding: 10px 11px; }
  .btn-login .nav-login-ico { width: 17px; height: 17px; }
}
/* <=900px 导航列表整块隐藏，登录按钮缩为纯图标，宽度留给主 CTA 与切换 */
@media (max-width: 900px) {
  .nav-right { gap: 8px; }
  .btn-login { font-size: 0; gap: 0; padding: 10px 11px; }
  .btn-login .nav-login-ico { width: 18px; height: 18px; }
  .ls-btn { font-size: 12px; padding: 8px 8px; }
}
@media (max-width: 420px) {
  .nav-right { gap: 6px; }
  .nav-right .btn-primary { padding: 9px 12px; font-size: 13px; }
  .btn-login { padding: 9px 9px; }
  .btn-login .nav-login-ico { width: 16px; height: 16px; }
  .ls-btn { font-size: 11.5px; padding: 8px 6px; }
}

/* 英文版略长，正文行高与容器放宽一点，避免单词挤断 */
html[lang="en"] body { letter-spacing: .002em; }
html[lang="en"] .hero h1 { letter-spacing: -.01em; }

/* 英文导航：词更长，收紧间距与字号，避免与右侧按钮相撞 */
html[lang="en"] .nav-links { gap: 15px; font-size: 14.5px; }
@media (max-width: 1240px) {
  html[lang="en"] .nav-links { gap: 12px; font-size: 14px; }
}
@media (max-width: 1120px) {
  html[lang="en"] .nav-links { gap: 10px; font-size: 13.5px; }
}

/* 小屏：LOGO 与 CTA 让位，避免切换控件被挤出屏幕 */
@media (max-width: 640px) {
  .nav { gap: 8px; }
  .logo-img { height: 34px; }
  .nav-right { gap: 7px; }
  .nav-right .btn-primary { padding: 8px 11px; font-size: 13px; }
  .lang-switch { padding: 2px; }
  .ls-btn { padding: 7px 6px; font-size: 11.5px; }
}
@media (max-width: 380px) {
  .logo-img { height: 30px; }
  .nav-right .btn-primary { padding: 7px 8px; font-size: 12px; }
  .ls-btn { padding: 6px 5px; font-size: 11px; }
}

/* 英文姓氏比单个汉字长，头像圈内需缩小字号，避免溢出圆形 */
html[lang="en"] .eng-avatar { font-size: 14px; letter-spacing: 0; }
html[lang="en"] .eng-name { font-size: 17px; }

/* 卡片纵向 flex：标题换行（英文常见）时「查看详情」仍对齐底部 */
.card { display: flex; flex-direction: column; }
.card p { flex: 1 1 auto; }
.card-cta { margin-top: 14px; }
/* NEWS:START */
.news-meta{display:block;margin-top:10px;font-size:12.5px;color:#7a8593}
.post-meta{font-size:13.5px;color:#7a8593;margin:10px 0 0}
/* 华为新闻式文章排版 */
.wx{background:#fff;padding:34px 15px 64px}
.wx-article{max-width:860px;margin:0 auto;padding:0}
.wx .breadcrumb{font-size:13px;color:#999;margin-bottom:22px}
.wx .breadcrumb a{color:#999}
.wx .breadcrumb a:hover{color:var(--blue)}
.wx .wx-title{font-size:30px;line-height:1.4;color:#000;font-weight:700;margin:0 0 14px}
.wx .wx-meta{font-size:14px;color:#999;margin:0;padding-bottom:20px;border-bottom:1px solid #e6e6e6}
.wx .wx-lead{font-size:16px;line-height:1.9;color:#333;margin:26px 0 0}
.wx-points{padding:24px 0 22px;margin:0 0 4px;border-bottom:1px solid #e6e6e6}
.wx .wx-points-t{font-size:15px;color:#999;font-weight:400;margin:0 0 8px}
.wx-points ul{margin:0;padding-left:20px}
.wx-points li{font-size:15px;line-height:1.9;color:#767676}
.wx h2{font-size:21px;line-height:1.5;color:#000;margin:40px 0 10px;font-weight:700}
.wx .wx-sub{font-size:14px;color:#999;margin:0 0 18px}
.wx p{font-size:16px;line-height:1.9;color:#333;margin:0 0 18px}
.wx-boxes{display:flex;flex-direction:column;gap:14px;margin:0 0 10px}
.wx-box{background:#f7f7f7;border-radius:4px;padding:18px 22px;margin:0;display:block}
.wx-box h3{font-size:16.5px;color:#000;margin:0 0 8px;line-height:1.5}
.wx-box p{font-size:15.5px;line-height:1.85;color:#555;margin:0}
.wx-box ul{margin:8px 0 0;padding-left:20px}
.wx-box li{font-size:15.5px;line-height:1.9;color:#555}
.wx .tag-free,.wx .tag-api{display:inline-block;font-size:12px;padding:2px 8px;border-radius:2px;margin-bottom:8px}
a.wx-link:hover{background:#f0f4f9}
.wx-more{display:inline-block;margin-top:10px;font-size:14px;color:var(--blue);font-weight:500}
.wx-more::after{content:" \2192"}
.wx-steps{display:flex;flex-direction:column;gap:20px;margin:0 0 10px}
.wx-step{display:flex;gap:16px}
.wx-step-num{flex:0 0 30px;width:30px;height:30px;border-radius:2px;background:var(--blue);color:#fff;font-size:15px;font-weight:600;display:flex;align-items:center;justify-content:center;margin-top:2px}
.wx-step-body h3{font-size:16.5px;color:#000;margin:2px 0 6px;line-height:1.5}
.wx-step-body p{font-size:15.5px;line-height:1.85;color:#555;margin:0}
.wx-faq{border-top:1px solid #e6e6e6;margin:0 0 10px}
.wx-faq-item{border-bottom:1px solid #e6e6e6;padding:16px 2px}
.wx-faq summary{font-size:16px;font-weight:600;color:#000;cursor:pointer;line-height:1.6}
.wx-faq p{margin:10px 0 2px;font-size:15.5px;color:#555}
.wx-cta{background:#f7f7f7;border-radius:4px;padding:26px 22px;text-align:center;margin:42px 0 0}
.wx-cta h3{font-size:19px;color:#000;margin:0 0 8px}
.wx-cta p{font-size:14px;color:#777;margin:0 0 16px}
.about-prose{max-width:820px;margin:0 auto}
.about-prose p{font-size:16px;line-height:1.95;color:#333;margin:0 0 16px}
.text-img{margin:4px auto 28px;text-align:center;max-width:720px}
.text-img img{max-width:100%;max-height:400px;width:auto;height:auto;border-radius:4px}
.text-img figcaption{font-size:13.5px;color:#999;margin-top:10px;line-height:1.6}
.wx p strong{color:#000}
@media (max-width:600px){
  .wx{padding:20px 15px 44px}
  .wx .wx-title{font-size:23px}
  .wx h2{font-size:19px}
  .text-img{margin:2px 0 22px}
}
/* NEWS:END */