:root {
  --navy: #123A52;
  --navy-deep: #0B2839;
  --navy-soft: #1D4A66;
  --teal: #1B7F79;
  --teal-light: #6FD3BE;
  --amber: #E2703A;
  --amber-light: #F0A882;
  --paper: #F4F7F8;
  --line: #DDE6EA;
  --text: #16232B;
  --text-2: #5A6A73;
  --text-3: #8A9AA3;
  --white: #FFFFFF;

  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px;
  --sp-5: 24px; --sp-6: 32px; --sp-7: 48px; --sp-8: 64px; --sp-9: 96px;

  --r-sm: 6px; --r-md: 10px; --r-lg: 16px; --r-xl: 24px;
  --shadow: 0 4px 20px rgba(18, 58, 82, .08);
  --shadow-lg: 0 12px 40px rgba(18, 58, 82, .14);
  --maxw: 1280px;
  --header-h: 64px;

  --font: "PingFang SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-num: "Space Grotesk", "Inter", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  font-size: 16px;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font-family: inherit; font-size: inherit; }
ul { list-style: none; }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
@media (min-width: 768px)  { .wrap { padding: 0 32px; } }
@media (min-width: 1200px) { .wrap { padding: 0 48px; } }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--amber); color: #fff; padding: 12px 20px; border-radius: 0 0 var(--r-sm) 0;
}
.skip-link:focus { left: 0; }

/* ============ 顶部导航 ============ */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.94);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .25s;
}
.header.scrolled { box-shadow: var(--shadow); }
.header-inner {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4);
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-logo { height: 40px; width: auto; display: block; }
@media (max-width: 575px) { .brand-logo { height: 32px; } }

.nav { display: none; }
@media (min-width: 992px) {
  .nav { display: flex; align-items: center; gap: var(--sp-5); }
  .nav a {
    font-size: 15px; color: var(--text-2); font-weight: 500;
    padding: 6px 0; position: relative; transition: color .2s;
  }
  .nav a::after {
    content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 2px;
    background: var(--amber); transition: right .25s;
  }
  .nav a:hover { color: var(--navy); }
  .nav a:hover::after { right: 0; }
}

.header-cta {
  background: var(--amber); color: #fff; border: none;
  padding: 10px 20px; border-radius: var(--r-sm); font-weight: 600; font-size: 14.5px;
  cursor: pointer; transition: background .2s, transform .15s; white-space: nowrap;
}
.header-cta:hover { background: #c85f2e; }
.header-cta:active { transform: translateY(1px); }
@media (min-width: 992px) { .header-cta { display: inline-block; } }
@media (max-width: 991.98px) { .header .header-cta { display: none; } }

.burger {
  display: grid; place-items: center; width: 42px; height: 42px;
  background: none; border: 1px solid var(--line); border-radius: var(--r-sm); cursor: pointer;
}
@media (min-width: 992px) { .burger { display: none; } }
.burger span { display: block; width: 18px; height: 2px; background: var(--navy); position: relative; transition: .25s; }
.burger span::before, .burger span::after {
  content: ""; position: absolute; left: 0; width: 18px; height: 2px; background: var(--navy); transition: .25s;
}
.burger span::before { top: -6px; }
.burger span::after  { top: 6px; }
.burger.open span { background: transparent; }
.burger.open span::before { top: 0; transform: rotate(45deg); }
.burger.open span::after  { top: 0; transform: rotate(-45deg); }

.mobile-nav {
  display: none; position: fixed; inset: var(--header-h) 0 0; z-index: 99;
  background: var(--white); overflow-y: auto; padding: var(--sp-5) 0 var(--sp-8);
}
.mobile-nav.open { display: block; }
.mobile-nav.show { display: block; }
.mobile-nav a {
  display: block; padding: 15px 20px; font-size: 17px; color: var(--text);
  border-bottom: 1px solid var(--line); font-weight: 500;
}
.mobile-nav a .en { display: block; font-size: 11px; color: var(--text-3); font-family: var(--font-num); letter-spacing: 1px; margin-top: 2px; }
.mobile-nav .m-cta { margin: 20px; background: var(--amber); color: #fff; border-radius: var(--r-sm); text-align: center; font-weight: 600; }
@media (min-width: 992px) { .mobile-nav { display: none !important; } }

/* ============ 通用区块 ============ */
section { padding: var(--sp-7) 0; }
@media (min-width: 768px) { section { padding: var(--sp-8) 0; } }
@media (min-width: 1200px) { section { padding: var(--sp-9) 0; } }

.section-head { margin-bottom: var(--sp-6); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; letter-spacing: 2px; color: var(--teal);
  font-family: var(--font-num); font-weight: 600; text-transform: uppercase;
  margin-bottom: var(--sp-3);
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--amber); }
.section-title { font-size: 27px; font-weight: 700; color: var(--navy); line-height: 1.3; letter-spacing: -0.3px; }
@media (min-width: 768px)  { .section-title { font-size: 36px; } }
@media (min-width: 1200px) { .section-title { font-size: 42px; } }
.section-sub { margin-top: var(--sp-3); color: var(--text-2); font-size: 16px; max-width: 640px; }
@media (min-width: 768px) { .section-sub { font-size: 17px; } }
.section-head.center { text-align: center; }
.section-head.center .section-sub { margin-left: auto; margin-right: auto; }
.section-head.center .eyebrow { justify-content: center; }

.bg-paper { background: var(--paper); }
.bg-navy { background: var(--navy); color: #fff; }
.bg-navy .section-title { color: #fff; }
.bg-navy .section-sub { color: rgba(255,255,255,.72); }
.bg-navy .eyebrow { color: var(--teal-light); }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: var(--r-sm); font-weight: 600; font-size: 15.5px;
  border: 1px solid transparent; cursor: pointer; transition: .2s; white-space: nowrap;
}
.btn-primary { background: var(--amber); color: #fff; }
.btn-primary:hover { background: #c85f2e; }
.btn-ghost { border-color: rgba(255,255,255,.4); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn-outline { border-color: var(--navy); color: var(--navy); }
.btn-outline:hover { background: var(--navy); color: #fff; }
.btn-sm { padding: 9px 18px; font-size: 14px; }

/* ============ 首屏 ============ */
.hero { position: relative; min-height: 88vh; display: flex; align-items: flex-end; overflow: hidden; background: var(--navy-deep); }
@media (min-width: 768px) { .hero { min-height: 92vh; } }
.hero-slides { position: absolute; inset: 0; }
.hero-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity 1.1s ease; will-change: opacity;
}
.hero-slide.active { opacity: 1; }
.hero-slide img { width: 100%; height: 100%; object-fit: cover; }
.hero-scrim {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(11,40,57,.62) 0%, rgba(11,40,57,.30) 38%, rgba(11,40,57,.88) 100%);
}
.hero-inner { position: relative; z-index: 2; width: 100%; padding-top: var(--sp-8); padding-bottom: var(--sp-7); }
@media (min-width: 768px)  { .hero-inner { padding: var(--sp-9) 0 var(--sp-8); } }
.hero-content {
  position: absolute; z-index: 2;
  left: 50%; transform: translateX(-50%);
  bottom: calc(var(--sp-7) + 165px);
  width: 100%; max-width: var(--maxw);
  padding: 0 48px;
}
@media (max-width: 767px) {
  .hero-content { padding: 0 20px; bottom: calc(var(--sp-5) + 205px); }
}
.hero-kicker {
  display: inline-block; font-size: 12px; letter-spacing: 2.5px; color: var(--teal-light);
  font-family: var(--font-num); font-weight: 600; margin-bottom: var(--sp-4);
  padding-left: 12px; border-left: 3px solid var(--amber);
}
.hero-title {
  font-size: 34px; font-weight: 700; color: #fff; line-height: 1.22; letter-spacing: -0.5px;
  text-shadow: 0 2px 20px rgba(0,0,0,.3);
}
@media (min-width: 768px)  { .hero-title { font-size: 50px; } }
@media (min-width: 1200px) { .hero-title { font-size: 60px; } }
.hero-desc { margin-top: var(--sp-4); color: rgba(255,255,255,.84); font-size: 16px; max-width: 520px; }
@media (min-width: 768px) { .hero-desc { font-size: 18px; } }
.hero-actions { margin-top: var(--sp-5); display: flex; flex-wrap: wrap; gap: var(--sp-3); }

.hero-stats {
  margin-top: var(--sp-6); padding-top: var(--sp-5); border-top: 1px solid rgba(255,255,255,.2);
  display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-4);
}
@media (min-width: 768px) { .hero-stats { grid-template-columns: repeat(4, 1fr); } }
.hero-stat-num {
  font-family: var(--font-num); font-size: 30px; font-weight: 700; color: var(--amber-light);
  line-height: 1;
}
@media (min-width: 768px) { .hero-stat-num { font-size: 40px; } }
.hero-stat-label { font-size: 13px; color: rgba(255,255,255,.7); margin-top: 6px; }

.hero-dots {
  position: absolute; right: 20px; bottom: 40%; z-index: 3;
  display: flex; flex-direction: column; gap: 10px;
}
@media (max-width: 767px) { .hero-dots { display: none; } }
.hero-dot {
  width: 8px; height: 8px; border-radius: 50%; border: none; cursor: pointer;
  background: rgba(255,255,255,.35); transition: .25s; padding: 0;
}
.hero-dot.active { background: var(--amber); height: 24px; border-radius: 4px; }

.scroll-hint {
  position: absolute; left: 50%; transform: translateX(-50%); bottom: 18px; z-index: 3;
  color: rgba(255,255,255,.5); font-size: 11px; letter-spacing: 2px; font-family: var(--font-num);
  display: none;
}
@media (min-width: 992px) { .scroll-hint { display: block; } }

/* ============ 产品线 ============ */
.product-grid { display: grid; gap: var(--sp-4); }
@media (min-width: 768px)  { .product-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1200px) { .product-grid { grid-template-columns: repeat(3, 1fr); } }

.product-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--r-md);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .28s, box-shadow .28s, border-color .28s;
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: rgba(226,112,58,.4); }
.product-thumb { position: relative; aspect-ratio: 16/10; overflow: hidden; background: var(--paper); }
.product-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.product-card:hover .product-thumb img { transform: scale(1.05); }
.product-code {
  position: absolute; left: 0; top: 0; background: var(--navy); color: #fff;
  font-family: var(--font-num); font-weight: 700; font-size: 15px;
  padding: 8px 14px; border-radius: 0 var(--r-sm) var(--r-sm) 0;
}
.product-badge {
  position: absolute; right: 12px; top: 12px; background: rgba(255,255,255,.94);
  color: var(--amber); font-size: 12px; font-weight: 600; padding: 5px 11px; border-radius: 20px;
}
.product-body { padding: var(--sp-5); display: flex; flex-direction: column; flex: 1; }
.product-name { font-size: 19px; font-weight: 700; color: var(--navy); }
.product-name-en { font-size: 11.5px; color: var(--text-3); font-family: var(--font-num); letter-spacing: 1.2px; margin-top: 3px; }
.product-summary { margin-top: var(--sp-3); font-size: 14.5px; color: var(--text-2); line-height: 1.7; }
.product-list { margin-top: var(--sp-4); display: flex; flex-direction: column; gap: 7px; }
.product-list li { font-size: 13.5px; color: var(--text-2); display: flex; gap: 8px; align-items: flex-start; }
.product-list li::before {
  content: ""; flex-shrink: 0; width: 5px; height: 5px; border-radius: 50%;
  background: var(--teal); margin-top: 8px;
}
.product-fit {
  margin-top: auto; padding-top: var(--sp-4); border-top: 1px dashed var(--line);
  font-size: 13px; color: var(--text-3);
}
.product-fit strong { color: var(--teal); font-weight: 600; }

/* ============ 服务板块 ============ */
.service-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-3); }
@media (min-width: 640px)  { .service-grid { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 1024px) { .service-grid { grid-template-columns: repeat(7, 1fr); } }
.service-item {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--r-sm); padding: var(--sp-4) var(--sp-3); text-align: center;
  transition: .25s;
}
.service-item:hover { background: rgba(255,255,255,.12); border-color: var(--teal-light); transform: translateY(-3px); }
.service-icon { color: var(--teal-light); margin: 0 auto 10px; width: 26px; height: 26px; }
.service-name { font-size: 14px; font-weight: 600; color: #fff; }
.service-desc { font-size: 11.5px; color: rgba(255,255,255,.55); margin-top: 4px; line-height: 1.5; }
@media (max-width: 639px) { .service-desc { display: none; } }

/* ============ 案例 ============ */
.filter-row { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-bottom: var(--sp-5); }
.filter-btn {
  padding: 8px 18px; border-radius: 20px; border: 1px solid var(--line);
  background: #fff; color: var(--text-2); font-size: 14px; cursor: pointer; transition: .2s;
}
.filter-btn:hover { border-color: var(--navy); color: var(--navy); }
.filter-btn.active { background: var(--navy); border-color: var(--navy); color: #fff; font-weight: 500; }

.case-grid { display: grid; gap: var(--sp-4); }
@media (min-width: 640px)  { .case-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .case-grid { grid-template-columns: repeat(3, 1fr); } }
.case-card {
  border-radius: var(--r-md); overflow: hidden; background: var(--white);
  border: 1px solid var(--line); display: flex; flex-direction: column; transition: .3s;
  position: relative;
}
.case-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.case-thumb { position: relative; aspect-ratio: 4/3; overflow: hidden; background: var(--paper); }
.case-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.case-card:hover .case-thumb img { transform: scale(1.06); }
.case-type {
  position: absolute; left: 12px; top: 12px; background: rgba(18,58,82,.9); color: #fff;
  font-size: 12px; padding: 4px 11px; border-radius: 20px;
}
.case-body { padding: var(--sp-4); display: flex; flex-direction: column; flex: 1; }
.case-name { font-size: 17px; font-weight: 700; color: var(--navy); line-height: 1.45; min-height: 2.9em; }
.case-loc { font-size: 13px; color: var(--text-3); margin-top: 3px; }
.case-scale { font-size: 13.5px; color: var(--text-2); margin-top: var(--sp-3); line-height: 1.6; }
.case-status { display: inline-block; margin-top: auto; align-self: flex-start; font-size: 12px; color: var(--teal); background: rgba(27,127,121,.1); padding: 3px 10px; border-radius: 20px; }
.case-more {
  margin-top: auto; padding-top: var(--sp-3); font-size: 13.5px; color: var(--teal);
  font-weight: 500; display: flex; align-items: center; gap: 5px;
}
.case-empty { text-align: center; color: var(--text-3); padding: var(--sp-7) 0; }

/* ============ 国际认证标志条 ============ */
.cert-wrap { margin-top: var(--sp-5); }
.cert-eyebrow {
  display: block; font-family: var(--font-num); font-size: 12px; letter-spacing: 1.4px;
  color: var(--text-3); margin-bottom: var(--sp-3);
}
.cert-row { display: grid; gap: 10px; grid-template-columns: repeat(2, 1fr); }
@media (min-width: 640px)  { .cert-row { grid-template-columns: repeat(4, 1fr); gap: 12px; } }
.cert-item {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--r-sm);
  padding: 12px 10px; display: flex; flex-direction: column; align-items: center;
  text-align: center; gap: 8px; transition: .25s;
}
.cert-item:hover { border-color: var(--teal); box-shadow: var(--shadow-sm); }
.cert-logo { height: 46px; display: grid; place-items: center; }
.cert-logo img { max-height: 46px; max-width: 100%; width: auto; object-fit: contain; }
.cert-meta { display: flex; flex-direction: column; gap: 5px; }
.cert-name { font-size: 13px; font-weight: 600; color: var(--navy); line-height: 1.4; }
.cert-note { display: none; font-size: 12px; color: var(--text-3); line-height: 1.55; }
.cert-wrap-lg { margin-top: var(--sp-5); }
.cert-wrap-lg .cert-item { padding: 18px 14px; gap: 12px; }
.cert-wrap-lg .cert-logo { height: 62px; }
.cert-wrap-lg .cert-logo img { max-height: 62px; }
.cert-wrap-lg .cert-name { font-size: 14px; }
.cert-wrap-lg .cert-note { display: block; }

/* ============ 动态 / 产品更新 ============ */
.news-layout { display: grid; gap: var(--sp-6); }
@media (min-width: 1024px) { .news-layout { grid-template-columns: 1.35fr 1fr; gap: var(--sp-7); } }
.news-list { display: flex; flex-direction: column; }
.news-item {
  display: flex; gap: var(--sp-4); padding: var(--sp-4) 0; border-bottom: 1px solid var(--line);
}
.news-item:first-child { padding-top: 0; }
.news-thumb { width: 96px; height: 72px; border-radius: var(--r-sm); overflow: hidden; flex-shrink: 0; background: var(--paper); }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-date { font-size: 12px; color: var(--text-3); font-family: var(--font-num); }
.news-title { font-size: 16px; font-weight: 600; color: var(--navy); margin-top: 3px; line-height: 1.45; }
.news-summary { font-size: 13.5px; color: var(--text-2); margin-top: 5px; line-height: 1.6; }
.news-tag {
  display: inline-block; font-size: 11px; padding: 2px 9px; border-radius: 20px;
  background: rgba(27,127,121,.1); color: var(--teal); margin-top: 6px;
}
.update-list { display: flex; flex-direction: column; gap: var(--sp-3); }
.update-item {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--r-sm);
  padding: var(--sp-4); border-left: 3px solid var(--teal);
}
.update-date { font-size: 12px; color: var(--text-3); font-family: var(--font-num); }
.update-title { font-size: 15.5px; font-weight: 600; color: var(--navy); margin-top: 3px; }
.update-summary { font-size: 13.5px; color: var(--text-2); margin-top: 5px; line-height: 1.6; }
.update-status {
  display: inline-block; font-size: 11px; padding: 2px 9px; border-radius: 20px; margin-top: 8px;
  background: rgba(27,127,121,.1); color: var(--teal);
}
.update-status.内测中 { background: rgba(226,112,58,.12); color: var(--amber); }

/* ============ 关于我们 ============ */
.about-grid { display: grid; gap: var(--sp-5); align-items: center; }
@media (min-width: 992px) { .about-grid { grid-template-columns: 1fr 1fr; gap: var(--sp-7); } }
.about-media { border-radius: var(--r-lg); overflow: hidden; aspect-ratio: 4/3; }
.about-media img { width: 100%; height: 100%; object-fit: cover; }
.value-list { display: flex; flex-direction: column; gap: var(--sp-4); margin-top: var(--sp-5); }
.value-item { padding-left: var(--sp-4); border-left: 3px solid var(--teal); }
.value-label { font-size: 13px; color: var(--teal); font-weight: 600; letter-spacing: 1px; }
.value-text { font-size: 15px; color: var(--text-2); margin-top: 5px; line-height: 1.7; }

/* ============ 服务流程 ============ */
.process-track { display: grid; gap: var(--sp-3); counter-reset: step; }
@media (min-width: 640px)  { .process-track { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .process-track { grid-template-columns: repeat(4, 1fr); } }
.process-step {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--r-md);
  padding: var(--sp-4); position: relative;
}
.process-num {
  font-family: var(--font-num); font-size: 13px; font-weight: 700; color: var(--amber);
  letter-spacing: 1px;
}
.process-name { font-size: 17px; font-weight: 700; color: var(--navavy); color: var(--navy); margin-top: 5px; }
.process-desc { font-size: 13.5px; color: var(--text-2); margin-top: 6px; line-height: 1.6; }
.process-meta { margin-top: var(--sp-3); padding-top: var(--sp-3); border-top: 1px dashed var(--line); font-size: 12.5px; color: var(--text-3); }
.process-meta b { color: var(--teal); font-weight: 600; }

/* ============ 预留模块（伙伴 / 售后）============ */
.reserved-grid { display: grid; gap: var(--sp-4); }
@media (min-width: 768px) { .reserved-grid { grid-template-columns: repeat(2, 1fr); } }
.reserved-card {
  border: 1px dashed rgba(27,127,121,.5); border-radius: var(--r-md);
  background: rgba(27,127,121,.05); padding: var(--sp-5); position: relative;
}
.reserved-head { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); flex-wrap: wrap; }
.reserved-name { font-size: 19px; font-weight: 700; color: var(--navy); }
.reserved-name-en { font-size: 11.5px; color: var(--text-3); font-family: var(--font-num); letter-spacing: 1.2px; margin-top: 2px; }
.reserved-badge {
  font-size: 12px; font-weight: 600; color: var(--teal);
  background: rgba(27,127,121,.12); padding: 5px 12px; border-radius: 20px; white-space: nowrap;
}
.reserved-desc { font-size: 14.5px; color: var(--text-2); margin-top: var(--sp-3); line-height: 1.7; }
.reserved-features { margin-top: var(--sp-4); display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.reserved-features li {
  font-size: 12.5px; color: var(--navy); background: rgba(255,255,255,.85);
  border: 1px solid var(--line); padding: 5px 12px; border-radius: 20px;
}
.reserved-api {
  margin-top: var(--sp-4); padding-top: var(--sp-3); border-top: 1px dashed rgba(27,127,121,.35);
  font-size: 12px; color: var(--text-3); font-family: var(--font-num);
}
.reserved-api code { color: var(--teal); background: rgba(27,127,121,.1); padding: 2px 7px; border-radius: 4px; }

/* ============ 留资表单 ============ */
.lead-grid { display: grid; gap: var(--sp-6); }
@media (min-width: 992px) { .lead-grid { grid-template-columns: 1fr 1.15fr; gap: var(--sp-8); } }
.lead-list { display: flex; flex-direction: column; gap: var(--sp-4); }
.lead-item { display: flex; gap: var(--sp-3); align-items: flex-start; }
.lead-ico { flex-shrink: 0; width: 40px; height: 40px; border-radius: 50%; background: rgba(111,211,190,.16); display: grid; place-items: center; color: var(--teal-light); }
.lead-label { font-size: 13px; color: rgba(255,255,255,.55); }
.lead-value { font-size: 16px; color: #fff; font-weight: 500; margin-top: 2px; }
.form-card { background: #fff; border-radius: var(--r-lg); padding: var(--sp-5); box-shadow: var(--shadow-lg); }
@media (min-width: 768px) { .form-card { padding: var(--sp-6); } }
.form-grid { display: grid; gap: var(--sp-4); }
@media (min-width: 640px) { .form-grid { grid-template-columns: 1fr 1fr; } }
.form-field { display: flex; flex-direction: column; gap: 7px; }
.form-field.full { grid-column: 1 / -1; }
.form-label { font-size: 13.5px; color: var(--text-2); font-weight: 500; }
.form-label .req { color: var(--amber); }
.form-input, .form-select, .form-textarea {
  border: 1px solid var(--line); border-radius: var(--r-sm); padding: 11px 14px;
  font-size: 15px; background: #fff; transition: border-color .2s, box-shadow .2s; width: 100%;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(27,127,121,.12);
}
.form-textarea { min-height: 110px; resize: vertical; }
.form-check { display: flex; gap: 9px; align-items: flex-start; font-size: 13px; color: var(--text-3); line-height: 1.6; }
.form-check input { margin-top: 3px; accent-color: var(--teal); width: 15px; height: 15px; flex-shrink: 0; }
.form-submit { width: 100%; margin-top: var(--sp-2); }
.form-note { font-size: 12.5px; color: var(--text-3); text-align: center; margin-top: var(--sp-3); }
.form-success {
  display: none; background: rgba(27,127,121,.1); border: 1px solid rgba(27,127,121,.35);
  color: var(--teal); border-radius: var(--r-sm); padding: var(--sp-4); font-size: 14.5px; margin-top: var(--sp-3);
}
.form-success.show { display: block; }

/* ============ 页脚 ============ */
.footer { background: var(--navy-deep); color: rgba(255,255,255,.7); padding: var(--sp-7) 0 var(--sp-5); }
.footer-grid { display: grid; gap: var(--sp-5); }
@media (min-width: 768px)  { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: var(--sp-6); } }
.footer-title { font-size: 14px; color: #fff; font-weight: 600; margin-bottom: var(--sp-3); letter-spacing: 1px; }
.footer-brand-cn { font-size: 20px; color: #fff; font-weight: 700; letter-spacing: 2px; }
.footer-brand-en { font-size: 10px; color: rgba(255,255,255,.4); font-family: var(--font-num); letter-spacing: 1.8px; margin-top: 4px; }
.footer-desc { font-size: 13.5px; margin-top: var(--sp-3); line-height: 1.75; }
.footer-list { display: flex; flex-direction: column; gap: 9px; }
.footer-list a, .footer-list span { font-size: 13.5px; transition: color .2s; }
.footer-list a:hover { color: var(--teal-light); }
.footer-contact { font-size: 13.5px; line-height: 1.9; }
.footer-contact b { color: #fff; font-weight: 600; }
.footer-bottom {
  margin-top: var(--sp-6); padding-top: var(--sp-4); border-top: 1px solid rgba(255,255,255,.12);
  display: flex; flex-wrap: wrap; gap: var(--sp-3); justify-content: space-between;
  font-size: 12.5px; color: rgba(255,255,255,.45);
}
.footer-bottom a { text-decoration: underline; }

/* ============ 面包屑 / 返回顶部 ============ */
.to-top {
  position: fixed; left: calc(100vw - 60px); right: auto; bottom: 16px; z-index: 80;
  width: 44px; height: 44px; border-radius: 50%; border: none; cursor: pointer;
  background: var(--navy); color: #fff; box-shadow: var(--shadow-lg);
  opacity: 0; pointer-events: none; transition: .3s;
}
.to-top.show { opacity: 1; pointer-events: auto; }
.to-top:hover { background: var(--amber); }
@media (min-width: 768px) { .to-top { left: calc(100vw - 72px); bottom: 28px; } }

/* ============ 动效 ============ */
/* 渐进增强：默认内容可见；只有 JS 成功启用时才加 .js-motion 类做入场动画。
   这样即使脚本加载失败或被拦截，内容也不会永远隐藏。 */
.js-motion .reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.js-motion .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js-motion .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* 兜底：若 IntersectionObserver 异常，3 秒后强制显示全部内容 */
.js-motion .reveal { animation: reveal-failsafe 0s linear 3s forwards; }
@keyframes reveal-failsafe { to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .js-motion .reveal { animation: none; } }

/* ============ 服务板块产品体系 ============ */
.sector-block { margin-top: var(--sp-6); }
.sector-block:first-of-type { margin-top: 0; }
.sector-head {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: var(--sp-4); margin-bottom: var(--sp-5);
  padding-bottom: var(--sp-4); border-bottom: 2px solid var(--line);
}
.sector-title { font-size: 21px; font-weight: 700; color: var(--navy); line-height: 1.35; }
@media (min-width: 768px) { .sector-title { font-size: 24px; } }
.sector-desc { font-size: 14.5px; color: var(--text-2); margin-top: 8px; line-height: 1.7; max-width: 760px; }
.sector-badge {
  flex-shrink: 0; font-size: 12.5px; font-weight: 600; color: #fff;
  background: var(--amber); padding: 6px 14px; border-radius: 20px; white-space: nowrap;
}
.sector-nav { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-bottom: var(--sp-5); }
.sector-chip {
  padding: 8px 16px; border-radius: 20px; border: 1px solid var(--line);
  background: #fff; color: var(--text-2); font-size: 14px; cursor: pointer; transition: .2s;
  display: inline-flex; align-items: center; gap: 7px;
}
.sector-chip:hover { border-color: var(--navy); color: var(--navy); }
.sector-chip.active { background: var(--navy); border-color: var(--navy); color: #fff; font-weight: 500; }
.sector-chip svg { width: 15px; height: 15px; fill: currentColor; flex-shrink: 0; }

.sector-system {
  background: var(--navy); border-radius: var(--r-md); padding: var(--sp-5);
  margin-bottom: var(--sp-4);
}
.sector-system-name { font-size: 22px; font-weight: 700; color: #fff; }
@media (min-width: 768px) { .sector-system-name { font-size: 25px; } }
.sector-system-en { font-size: 11.5px; color: var(--teal-light); font-family: var(--font-num); letter-spacing: 1.3px; margin-top: 4px; }
.sector-system-desc { font-size: 15px; color: rgba(255,255,255,.78); margin-top: 10px; line-height: 1.7; max-width: 820px; }

.sector-product-grid { display: grid; gap: var(--sp-4); }
@media (min-width: 640px)  { .sector-product-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .sector-product-grid { grid-template-columns: repeat(4, 1fr); } }

.sp-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--r-md);
  overflow: hidden; display: flex; flex-direction: column; transition: transform .28s, box-shadow .28s;
}
.sp-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.sp-thumb { position: relative; aspect-ratio: 4/3; overflow: hidden; background: var(--paper); }
.sp-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.sp-card:hover .sp-thumb img { transform: scale(1.06); }
.sp-brand {
  position: absolute; left: 0; bottom: 0; right: 0;
  background: linear-gradient(180deg, rgba(18,58,82,0) 0%, rgba(18,58,82,.86) 100%);
  color: #fff; font-size: 12.5px; padding: 22px 12px 9px;
}
.sp-body { padding: var(--sp-4); display: flex; flex-direction: column; flex: 1; }
.sp-name { font-size: 16.5px; font-weight: 700; color: var(--navy); line-height: 1.4; }
.sp-summary { font-size: 14px; color: var(--text-2); line-height: 1.65; margin-top: 8px; }
.sp-list { margin-top: var(--sp-3); display: flex; flex-direction: column; gap: 6px; }
.sp-list li { font-size: 12.5px; color: var(--text-2); line-height: 1.5; display: flex; gap: 7px; align-items: flex-start; }
.sp-list li::before { content: ""; flex-shrink: 0; width: 4px; height: 4px; border-radius: 50%; background: var(--teal); margin-top: 7px; }

/* ============ V2 多页面站点：新增样式 ============ */

/* 导航当前项 */
.nav .nav-link { position: relative; }
.nav .nav-link.active { color: var(--navy); font-weight: 600; }
.nav .nav-link.active::after {
  content: ""; position: absolute; left: 50%; transform: translateX(-50%);
  bottom: -22px; width: 20px; height: 3px; border-radius: 2px; background: var(--amber);
}
.mobile-nav a.active { color: var(--amber); font-weight: 600; }

/* 面包屑 */
.crumbs { padding: 14px 0; font-size: 13.5px; color: var(--text-3); }
.crumbs a { color: var(--text-2); }
.crumbs a:hover { color: var(--navy); }
.crumb-sep { margin: 0 8px; color: var(--line); }

/* 页头 */
.page-hero {
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 60%, var(--navy-soft) 100%);
  color: #fff; padding: var(--sp-7) 0 var(--sp-6);
}
.page-hero .eyebrow { color: var(--teal-light); }
.page-title { font-size: 30px; font-weight: 800; line-height: 1.3; margin-top: 10px; }
@media (min-width: 768px) { .page-title { font-size: 40px; } }
.page-lead { font-size: 15.5px; color: rgba(255,255,255,.8); margin-top: 16px; max-width: 860px; line-height: 1.8; }
@media (min-width: 768px) { .page-lead { font-size: 17px; } }

.center { text-align: center; }
.center .section-sub, .center .page-lead { margin-left: auto; margin-right: auto; }
.hidden { display: none !important; }

/* 关于页 */
.about-text { font-size: 16px; color: var(--text-2); line-height: 1.85; margin-top: 18px; }
.stat-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-4); }
@media (min-width: 768px) { .stat-row { grid-template-columns: repeat(4, 1fr); } }
.stat-box { background: var(--paper); border-radius: var(--r-md); padding: var(--sp-5) var(--sp-4); text-align: center; }
.stat-num { display: block; font-family: var(--font-num); font-size: 34px; font-weight: 700; color: var(--navy); }
.stat-num i { font-style: normal; font-size: 16px; color: var(--amber); margin-left: 2px; }
.stat-label { display: block; font-size: 13.5px; color: var(--text-2); margin-top: 6px; }

.mile-list { display: grid; gap: var(--sp-4); }
@media (min-width: 900px) { .mile-list { grid-template-columns: repeat(2, 1fr); } }
.mile { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: var(--sp-5); display: flex; gap: var(--sp-4); }
.mile-year { flex-shrink: 0; font-family: var(--font-num); font-weight: 700; color: var(--amber); font-size: 17px; min-width: 74px; }
.mile-text { font-size: 14.5px; color: var(--text-2); line-height: 1.7; }

.cap-grid { display: grid; gap: var(--sp-4); }
@media (min-width: 768px) { .cap-grid { grid-template-columns: repeat(2, 1fr); } }
.cap { background: var(--paper); border-radius: var(--r-md); padding: var(--sp-5); border-top: 3px solid var(--teal); }
.cap h3 { font-size: 17px; color: var(--navy); margin-bottom: 10px; }
.cap p { font-size: 14.5px; color: var(--text-2); line-height: 1.75; }

.cred-list { display: grid; gap: var(--sp-3); max-width: 900px; }
.cred-list li { background: rgba(255,255,255,.06); border-left: 3px solid var(--teal-light); padding: 14px 18px; border-radius: 0 var(--r-sm) var(--r-sm) 0; color: rgba(255,255,255,.85); font-size: 14.5px; line-height: 1.7; }

.city-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: var(--sp-3); }
@media (min-width: 640px) { .city-grid { grid-template-columns: repeat(3,1fr); } }
@media (min-width: 1024px) { .city-grid { grid-template-columns: repeat(4,1fr); } }
.city { background: #fff; border: 1px solid var(--line); border-radius: var(--r-sm); padding: 14px 16px; }
.city h3 { font-size: 16px; color: var(--navy); }
.city p { font-size: 12.5px; color: var(--text-3); margin-top: 4px; line-height: 1.5; }

/* 产品体系页 */
.p-line-list-wrap { display: grid; gap: var(--sp-5); }
.p-line { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; display: grid; }
@media (min-width: 900px) { .p-line { grid-template-columns: 5fr 7fr; } }
.p-line-media { position: relative; min-height: 240px; background: var(--paper); }
.p-line-media img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.p-line-body { padding: var(--sp-5); }
.p-line-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.p-line-name { font-size: 21px; font-weight: 700; color: var(--navy); }
@media (min-width: 768px) { .p-line-name { font-size: 24px; } }
.p-line-tag { font-size: 12.5px; color: #fff; background: var(--teal); padding: 3px 10px; border-radius: 20px; }
.p-line-en { font-family: var(--font-num); font-size: 12px; color: var(--text-3); letter-spacing: 1px; margin-top: 6px; }
.p-line-sum { font-size: 15px; color: var(--text-2); line-height: 1.75; margin-top: 14px; }
.p-line-list { margin-top: 14px; display: grid; gap: 8px; }
.p-line-list li { font-size: 14px; color: var(--text-2); padding-left: 18px; position: relative; line-height: 1.6; }
.p-line-list li::before { content: "▸"; position: absolute; left: 0; color: var(--amber); }

.svc-all { display: flex; flex-wrap: wrap; gap: 10px; }
.svc-all li { background: var(--paper); border: 1px solid var(--line); border-radius: 20px; padding: 7px 16px; font-size: 14px; color: var(--navy); }

/* 案例分类入口 */
.cat-grid { display: grid; gap: var(--sp-4); }
@media (min-width: 640px) { .cat-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 1024px) { .cat-grid { grid-template-columns: repeat(4,1fr); } }
.cat-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: var(--sp-5); display: flex; flex-direction: column; gap: 10px; transition: transform .25s, box-shadow .25s, border-color .25s; }
.cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--teal); }
.cat-card h3 { font-size: 17px; color: var(--navy); line-height: 1.4; }
.cat-card p { font-size: 13.5px; color: var(--text-2); line-height: 1.65; flex: 1; }
.cat-num { font-family: var(--font-num); font-size: 12.5px; color: var(--amber); font-weight: 600; }
.case-card-lg .case-name { font-size: 19px; }

/* 视频卡片 */
.v-grid { display: grid; gap: var(--sp-4); grid-template-columns: repeat(2,1fr); }
@media (min-width: 640px) { .v-grid { grid-template-columns: repeat(3,1fr); } }
@media (min-width: 1024px) { .v-grid { grid-template-columns: repeat(4,1fr); } }
.v-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; display: flex; flex-direction: column; transition: transform .25s, box-shadow .25s; }
.v-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.v-thumb { position: relative; aspect-ratio: 3/4; background: var(--paper); overflow: hidden; }
.v-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.v-card:hover .v-thumb img { transform: scale(1.05); }
.v-play { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 30px; color: #fff; background: rgba(11,40,57,.18); transition: background .25s; }
.v-card:hover .v-play { background: rgba(11,40,57,.32); }
.v-cat { position: absolute; left: 8px; top: 8px; font-size: 11.5px; color: #fff; background: rgba(18,58,82,.82); padding: 3px 9px; border-radius: 20px; backdrop-filter: blur(4px); }
.v-body { padding: var(--sp-4); display: flex; flex-direction: column; gap: 6px; flex: 1; }
.v-title { font-size: 14.5px; font-weight: 600; color: var(--navy); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.v-meta { font-size: 12px; color: var(--text-3); }
.v-desc { font-size: 12.5px; color: var(--text-2); line-height: 1.55; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.filter-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: var(--sp-5); }
.filter-btn { padding: 7px 15px; border-radius: 20px; border: 1px solid var(--line); background: #fff; color: var(--text-2); font-size: 13.5px; cursor: pointer; transition: .2s; }
.filter-btn:hover, .filter-btn.active { background: var(--navy); border-color: var(--navy); color: #fff; }
.year-nav { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.year-link { font-family: var(--font-num); font-size: 13px; color: rgba(255,255,255,.7); border: 1px solid rgba(255,255,255,.25); border-radius: 20px; padding: 4px 13px; }
.year-link:hover { color: #fff; border-color: var(--teal-light); }

/* 动态页迷你卡 */
.mini-grid { display: grid; gap: var(--sp-4); grid-template-columns: repeat(2,1fr); }
@media (min-width: 640px) { .mini-grid { grid-template-columns: repeat(4,1fr); } }
@media (min-width: 1024px) { .mini-grid { grid-template-columns: repeat(6,1fr); } }
.mini-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-sm); overflow: hidden; transition: transform .25s, box-shadow .25s; }
.mini-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.mini-thumb { aspect-ratio: 3/4; background: var(--paper); overflow: hidden; }
.mini-thumb img { width: 100%; height: 100%; object-fit: cover; }
.mini-body { padding: 10px 12px; }
.mini-body h3 { font-size: 13px; color: var(--navy); line-height: 1.45; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.mini-body span { font-size: 11.5px; color: var(--text-3); }

/* FAQ */
.faq-list { display: grid; gap: var(--sp-3); max-width: 900px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.faq-item summary { cursor: pointer; padding: 18px 20px; font-size: 16px; font-weight: 600; color: var(--navy); list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; line-height: 1.5; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-family: var(--font-num); font-size: 22px; color: var(--amber); flex-shrink: 0; }
.faq-item[open] summary::after { content: "−"; }
.faq-item[open] summary { border-bottom: 1px solid var(--line); }
.faq-item p { padding: 16px 20px 20px; font-size: 14.5px; color: var(--text-2); line-height: 1.85; }
.faq-list-lg { max-width: 920px; }
.faq-group { margin-bottom: var(--sp-6); }
.faq-cat { font-size: 19px; color: var(--navy); margin-bottom: var(--sp-4); padding-left: 14px; border-left: 4px solid var(--amber); }

/* 联系页 */
.contact-grid { display: grid; gap: var(--sp-6); }
@media (min-width: 1024px) { .contact-grid { grid-template-columns: 7fr 5fr; } }
.lead-grid { display: grid; gap: var(--sp-5); }
.lead-list { display: grid; gap: var(--sp-3); }
@media (min-width: 640px) { .lead-list { grid-template-columns: repeat(2,1fr); } }
.lead-item { display: flex; gap: 12px; align-items: flex-start; background: var(--paper); border-radius: var(--r-sm); padding: 14px 16px; }
.lead-ico { font-size: 18px; color: var(--teal); }
.lead-label { font-size: 12.5px; color: var(--text-3); }
.lead-value { font-size: 15px; color: var(--navy); font-weight: 600; margin-top: 2px; }
.lead-value a { color: var(--navy); }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: var(--sp-5); }
.form-card h2 { font-size: 20px; color: var(--navy); margin-bottom: var(--sp-4); }
.contact-aside h2 { font-size: 19px; color: var(--navy); }
.aside-note { font-size: 13.5px; color: var(--text-3); margin: 8px 0 18px; line-height: 1.7; }
.reserved-grid { display: grid; gap: var(--sp-4); }
.reserved-card { background: var(--paper); border-radius: var(--r-md); padding: var(--sp-4); border-top: 3px solid var(--text-3); }
.reserved-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.reserved-head h3 { font-size: 15.5px; color: var(--navy); }
.reserved-badge { font-size: 11.5px; color: var(--text-2); background: #fff; border: 1px solid var(--line); padding: 2px 9px; border-radius: 20px; white-space: nowrap; }
.reserved-desc { font-size: 13px; color: var(--text-2); line-height: 1.65; margin-top: 8px; }
.reserved-features { margin-top: 10px; display: grid; gap: 4px; }
.reserved-features li { font-size: 12.5px; color: var(--text-2); padding-left: 14px; position: relative; }
.reserved-features li::before { content: "·"; position: absolute; left: 4px; color: var(--amber); }
.reserved-api { display: inline-block; margin-top: 10px; font-family: var(--font-num); font-size: 11.5px; color: var(--teal); background: rgba(27,127,121,.08); padding: 3px 9px; border-radius: 4px; }

/* 页脚备案号（工信部要求：可点击跳转 beian.miit.gov.cn） */
.icp-slot { color: var(--text-3); font-size: 12.5px; text-decoration: none; transition: color .2s; }
.icp-slot:hover, .icp-slot:focus-visible { color: var(--navy); text-decoration: underline; }

/* ============ 精选视频卡片（抖音作品，本地 mp4 可切换站内播放）============ */
.fv-grid { margin-top: 4px; }
.fv-card {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--r-md); overflow: hidden; display: flex; flex-direction: column;
  transition: transform .28s, box-shadow .28s;
}
.fv-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.fv-thumb { position: relative; aspect-ratio: 3/4; background: var(--navy-deep); overflow: hidden; }
.fv-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.fv-thumb video { width: 100%; height: 100%; object-fit: cover; background: #000; }
.fv-card:hover .fv-thumb img { transform: scale(1.06); }
.fv-play {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: 34px; color: #fff; background: rgba(11,40,57,.22); transition: background .25s;
  text-shadow: 0 2px 12px rgba(0,0,0,.4);
}
.fv-card:hover .fv-play { background: rgba(11,40,57,.36); }
.fv-cat {
  position: absolute; left: 8px; top: 8px; font-size: 11.5px; color: #fff;
  background: rgba(18,58,82,.82); padding: 3px 9px; border-radius: 20px; backdrop-filter: blur(4px);
}
.fv-plat {
  position: absolute; right: 8px; top: 8px; font-size: 11px; color: #fff;
  background: rgba(226,112,58,.92); padding: 3px 8px; border-radius: 20px;
}
.fv-body { padding: var(--sp-4); display: flex; flex-direction: column; gap: 6px; flex: 1; }
.fv-title { font-size: 14.5px; font-weight: 600; color: var(--navy); line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.fv-meta { font-size: 12px; color: var(--text-3); }
.fv-desc { font-size: 12.5px; color: var(--text-2); line-height: 1.55;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.fv-go {
  margin-top: auto; padding-top: 10px; font-size: 12.5px; font-weight: 600; color: var(--amber);
}
.fv-card:hover .fv-go { color: var(--navy); }
@media (min-width: 1024px) {
  .fv-grid { grid-template-columns: repeat(5, 1fr); }
}

/* 资质证书卡片 */
.cred-docs { display: grid; gap: var(--sp-5); margin-top: var(--sp-5); }
@media (min-width: 900px) { .cred-docs { grid-template-columns: 360px 1fr; align-items: start; } }
.cred-doc { background: #fff; border-radius: var(--r-md); overflow: hidden; box-shadow: var(--shadow-lg); }
.cred-doc img { width: 100%; height: auto; display: block; transition: transform .4s; }
.cred-doc a:hover img { transform: scale(1.03); }
.cred-doc figcaption { padding: var(--sp-5); }
.cred-doc h3 { font-size: 19px; color: var(--navy); margin-bottom: 14px; }
.cred-doc dl { display: grid; gap: 8px; margin-bottom: 14px; }
.cred-doc dl > div { display: flex; gap: 12px; font-size: 13.5px; }
.cred-doc dt { flex-shrink: 0; width: 96px; color: var(--text-3); }
.cred-doc dd { color: var(--text); font-weight: 500; }
.cred-doc figcaption > p { font-size: 14px; color: var(--text-2); line-height: 1.75; }
.cred-verify { display: inline-block; margin-top: 12px; font-size: 12.5px; color: var(--teal);
  background: rgba(27,127,121,.1); padding: 4px 12px; border-radius: 20px; }

/* ============ 14 大服务板块：图文卡（中英双语）============ */
.service-grid { display: grid; gap: var(--sp-4); grid-template-columns: repeat(2, 1fr); }
@media (min-width: 768px)  { .service-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1080px) { .service-grid { grid-template-columns: repeat(4, 1fr); } }
.svc-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-md);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .28s, box-shadow .28s;
}
.svc-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.svc-media { position: relative; aspect-ratio: 4/3; background: var(--paper); overflow: hidden; }
.svc-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.svc-card:hover .svc-media img { transform: scale(1.06); }
.svc-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(11,40,57,.34) 0%, rgba(11,40,57,0) 45%);
}
.svc-ico {
  position: absolute; left: 10px; top: 10px; z-index: 2;
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(255,255,255,.94); color: var(--navy);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 10px rgba(11,40,57,.2);
}
.svc-no {
  position: absolute; right: 10px; top: 10px; z-index: 2;
  font-family: var(--font-num); font-size: 13px; font-weight: 700;
  color: #fff; background: rgba(18,58,82,.78); padding: 3px 9px; border-radius: 20px;
  backdrop-filter: blur(4px);
}
.svc-body { padding: var(--sp-4); display: flex; flex-direction: column; gap: 6px; flex: 1; }
.svc-name { font-size: 15.5px; font-weight: 700; color: var(--navy); line-height: 1.4; display: flex; flex-direction: column; gap: 2px; }
.svc-en { font-family: var(--font-num); font-size: 11px; font-weight: 500; color: var(--teal); letter-spacing: .4px; }
.svc-desc { font-size: 13px; color: var(--text-2); line-height: 1.6; }

/* ============ 首页：商业空间 / 工装区块 ============ */
.comm-caps { display: grid; gap: var(--sp-3); margin-bottom: var(--sp-6); grid-template-columns: repeat(2, 1fr); }
@media (min-width: 768px)  { .comm-caps { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1080px) { .comm-caps { grid-template-columns: repeat(6, 1fr); } }
.comm-cap {
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--r-sm); padding: 14px 16px;
}
.comm-cap h3 { font-size: 14.5px; color: var(--teal-light); margin-bottom: 6px; }
.comm-cap p { font-size: 12px; color: rgba(255,255,255,.72); line-height: 1.6; }
.comm-cases .case-card { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.14); }
.comm-cases .case-name { color: #fff; }
.comm-cases .case-loc, .comm-cases .case-scale { color: rgba(255,255,255,.7); }
.comm-cases .case-type { background: rgba(111,211,190,.2); color: var(--teal-light); }

/* 产品页 14 板块清单双语 */
.svc-all { display: flex; flex-wrap: wrap; gap: 10px; }
.svc-all li { background: var(--paper); border: 1px solid var(--line); border-radius: 20px; padding: 7px 16px; font-size: 14px; color: var(--navy); display: flex; align-items: baseline; gap: 6px; }
.svc-all-en { font-family: var(--font-num); font-size: 11px; color: var(--text-3); letter-spacing: .3px; }

/* 案例页住宅/商业分组 */
.case-split { display: grid; gap: var(--sp-6); }
@media (min-width: 1024px) { .case-split { grid-template-columns: 1fr 1fr; } }
.case-col-title { font-size: 19px; color: var(--navy); margin-bottom: var(--sp-4); padding-bottom: 12px; border-bottom: 2px solid var(--line); display: flex; align-items: baseline; gap: 10px; }
.case-col-title span { font-family: var(--font-num); font-size: 11.5px; color: var(--text-3); letter-spacing: 1px; text-transform: uppercase; }

/* 关于我们：住宅 / 工装双图 */
.about-media { display: grid; gap: var(--sp-3); }
@media (min-width: 560px) { .about-media { grid-template-columns: 1fr 1fr; } }
.about-fig { position: relative; border-radius: var(--r-md); overflow: hidden; box-shadow: var(--shadow); }
.about-fig img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }
.about-fig figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 14px 12px;
  background: linear-gradient(180deg, rgba(11,40,57,0), rgba(11,40,57,.86));
  color: #fff; font-size: 13.5px; font-weight: 600;
  display: flex; align-items: baseline; justify-content: space-between; gap: 8px;
}
.about-fig figcaption span { font-family: var(--font-num); font-size: 11px; font-weight: 400; color: var(--teal-light); letter-spacing: .8px; }

/* 产品页工装能力条（浅色版） */
.comm-caps-light .comm-cap { background: #fff; border-color: var(--line); }
.comm-caps-light .comm-cap h3 { color: var(--navy); }
.comm-caps-light .comm-cap p { color: var(--text-2); }
.comm-cases-light { margin-top: var(--sp-5); }

/* ============ 使命 / 愿景 / 价值观 ============ */
.mvv-grid { display: grid; gap: var(--sp-3); margin-top: var(--sp-5); grid-template-columns: 1fr; }
@media (min-width: 640px)  { .mvv-grid { grid-template-columns: repeat(3, 1fr); gap: var(--sp-4); } }
.mvv-grid-lg { margin-top: 0; }
.mvv-grid-lg .mvv-card { padding: var(--sp-6) var(--sp-5); }

.mvv-card {
  position: relative; overflow: hidden;
  background: linear-gradient(160deg, #FFFFFF 0%, #F7FAFB 100%);
  border: 1px solid var(--line); border-radius: var(--r-md);
  padding: var(--sp-5) var(--sp-4);
  display: flex; flex-direction: column; gap: 16px;
  transition: transform .35s var(--ease-out), box-shadow .35s var(--ease-out), border-color .35s;
}
.mvv-card::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: linear-gradient(90deg, var(--teal), rgba(27,127,121,.15));
  opacity: .9;
}
.mvv-amber::before { background: linear-gradient(90deg, var(--amber), rgba(226,112,58,.15)); }
.mvv-card:hover {
  transform: translateY(-4px); border-color: rgba(27,127,121,.34);
  box-shadow: 0 18px 44px -18px rgba(18,58,82,.28), 0 2px 6px rgba(18,58,82,.05);
}
.mvv-amber:hover { border-color: rgba(226,112,58,.34); }

/* 圆形徽章：字符 */
.mvv-badge {
  flex-shrink: 0; width: 52px; height: 52px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 23px; font-weight: 700; color: #fff; letter-spacing: 0;
  background: radial-gradient(120% 120% at 30% 25%, #1B7F79 0%, #125F5A 100%);
  box-shadow: 0 8px 20px -8px rgba(27,127,121,.65), inset 0 1px 0 rgba(255,255,255,.22);
}
.mvv-amber .mvv-badge {
  background: radial-gradient(120% 120% at 30% 25%, #F0873F 0%, #C95F1F 100%);
  box-shadow: 0 8px 20px -8px rgba(226,112,58,.6), inset 0 1px 0 rgba(255,255,255,.22);
}

.mvv-label {
  font-size: 18px; font-weight: 700; color: var(--navy);
  display: flex; align-items: baseline; gap: 8px; line-height: 1.3;
}
.mvv-en {
  font-family: var(--font-num); font-size: 11px; font-weight: 500;
  color: var(--teal); letter-spacing: 1.1px; text-transform: uppercase;
}
.mvv-amber .mvv-en { color: var(--amber); }
.mvv-body { font-size: 14.5px; color: var(--text-2); line-height: 1.85; margin-top: 10px; }

/* 右下角微光斑，增加质感 */
.mvv-glow {
  position: absolute; right: -20px; bottom: -30px; width: 110px; height: 110px;
  border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, rgba(27,127,121,.12) 0%, rgba(27,127,121,0) 70%);
}
.mvv-amber .mvv-glow { background: radial-gradient(circle, rgba(226,112,58,.12) 0%, rgba(226,112,58,0) 70%); }

/* 旧的两行式 value-list 保留兼容但视觉弱化 */
.value-list { margin-top: var(--sp-4); }

/* ============================================================
   精细化 / 高级感 / 科技感 —— 全局增强层
   ============================================================ */
:root {
  /* 缓动曲线 */
  --ease-out: cubic-bezier(.22, .68, 0, 1);
  --ease-in-out: cubic-bezier(.45, 0, .25, 1);
  --ease-spring: cubic-bezier(.34, 1.4, .64, 1);
  /* 多层阴影：近实远虚，比单层更有质感 */
  --sh-1: 0 1px 2px rgba(18,58,82,.05), 0 2px 8px -2px rgba(18,58,82,.06);
  --sh-2: 0 2px 4px rgba(18,58,82,.04), 0 8px 24px -8px rgba(18,58,82,.12);
  --sh-3: 0 4px 8px rgba(18,58,82,.05), 0 18px 48px -16px rgba(18,58,82,.20);
  --sh-4: 0 8px 16px rgba(18,58,82,.06), 0 32px 72px -24px rgba(18,58,82,.26);
  /* 细线 */
  --line-soft: #E9EFF2;
  --line-strong: #CFDBE1;
  /* 科技网格 */
  --grid-line: rgba(18,58,82,.055);
  --grid-size: 44px;
}

/* ---------- 科技感网格背景（深色区块用） ---------- */
.bg-navy, .page-hero, .footer, #contact .contact-form-wrap {
  position: relative;
  isolation: isolate;
  overflow: hidden;          /* 裁剪 120vw 装饰光晕，防止撑破移动端视口 */
}
.bg-navy::before, .page-hero::before, .footer::before {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  mask-image: radial-gradient(ellipse 90% 80% at 50% 0%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 0%, #000 0%, transparent 78%);
}
/* 顶部一道极淡的光晕，增加纵深 */
.bg-navy::after, .page-hero::after {
  content: ""; position: absolute; left: 50%; top: -30%; z-index: -1;
  width: 120vw; height: 60vh; transform: translateX(-50%); pointer-events: none;
  background: radial-gradient(ellipse at center, rgba(111,211,190,.13) 0%, rgba(111,211,190,0) 62%);
}

/* ---------- 标题组：eyebrow 加短横线，标题收紧字距 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-num); font-size: 12px; font-weight: 600;
  letter-spacing: 2.2px; text-transform: uppercase; color: var(--teal);
}
.eyebrow::before {
  content: ""; width: 22px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--amber), var(--teal));
}
.section-title, .page-title, .hero-title {
  letter-spacing: -.01em; font-feature-settings: "tnum" 0;
}
.section-head { margin-bottom: var(--sp-6); }
.section-head .section-sub { margin-top: 14px; }
.page-hero .eyebrow { color: var(--teal-light); }
.page-hero .eyebrow::before { background: linear-gradient(90deg, var(--amber-light), var(--teal-light)); }

/* ---------- 导航：滚动后更清晰的毛玻璃与细线 ---------- */
.header { transition: box-shadow .3s var(--ease-out), background .3s; }
.header.scrolled {
  background: rgba(255,255,255,.9);
  box-shadow: 0 1px 0 var(--line-soft), 0 8px 28px -18px rgba(18,58,82,.22);
}
.brand-mark { transition: transform .4s var(--ease-spring); }
.brand:hover .brand-mark { transform: rotate(-6deg) scale(1.06); }
.nav-link { transition: color .22s var(--ease-out); }
.nav-link::after { transition: width .28s var(--ease-out), background .28s; }
.btn-nav { transition: background .25s, transform .25s var(--ease-out), box-shadow .25s; }
.btn-nav:hover { transform: translateY(-1px); box-shadow: 0 6px 18px -8px rgba(226,112,58,.6); }

/* ---------- Hero 精细化 ---------- */
.hero-media img { transform: scale(1.04); transition: transform 8s linear; }
.hero-slide.active .hero-media img { transform: scale(1); }
.hero-media::after {
  background:
    linear-gradient(180deg, rgba(11,40,57,.30) 0%, rgba(11,40,57,.10) 32%, rgba(11,40,57,.62) 78%, rgba(11,40,57,.86) 100%);
}
.hero-title { text-shadow: 0 2px 24px rgba(11,40,57,.4); }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 30px;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2);
  backdrop-filter: blur(6px);
}
.hero-dot {
  width: 26px; height: 3px; border-radius: 2px; background: rgba(255,255,255,.34);
  transition: width .4s var(--ease-out), background .3s; border: 0; padding: 0; cursor: pointer;
}
.hero-dot.active { width: 40px; background: var(--amber); }
.hero-cta .btn-primary, .hero-cta .btn-ghost { transition: transform .28s var(--ease-out), box-shadow .28s, background .28s; }
.hero-cta .btn:hover { transform: translateY(-2px); }
.scroll-hint {
  width: 22px; height: 36px; border: 1.5px solid rgba(255,255,255,.4); border-radius: 12px;
  /* 保持基础层的 absolute + left:50% + translateX(-50%) 居中定位，不可改为 relative */
}
.scroll-hint::after {
  content: ""; position: absolute; left: 50%; top: 7px; width: 3px; height: 7px;
  border-radius: 2px; background: #fff; transform: translateX(-50%);
  animation: scrollDot 1.8s var(--ease-in-out) infinite;
}
@keyframes scrollDot {
  0%   { opacity: 0; transform: translate(-50%, 0); }
  35%  { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, 13px); }
}
/* 数据带：等宽数字 */
.hero-stats .stat-num, .stat-box .stat-num { font-variant-numeric: tabular-nums; letter-spacing: -.5px; }

/* ---------- 按钮精细化 ---------- */
.btn {
  position: relative; overflow: hidden;
  transition: transform .28s var(--ease-out), box-shadow .28s var(--ease-out), background .28s, color .28s, border-color .28s;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: linear-gradient(135deg, #E8703A 0%, #D25E22 100%);
  box-shadow: 0 1px 0 rgba(255,255,255,.28) inset, 0 8px 22px -10px rgba(226,112,58,.62);
}
.btn-primary:hover { box-shadow: 0 1px 0 rgba(255,255,255,.3) inset, 0 14px 32px -12px rgba(226,112,58,.72); }
/* 光泽扫过 */
.btn-primary::after {
  content: ""; position: absolute; top: 0; left: -120%; width: 60%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255,255,255,.32), transparent);
  transform: skewX(-18deg); transition: left .55s var(--ease-out);
}
.btn-primary:hover::after { left: 130%; }
.btn-ghost {
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.28);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover { background: rgba(255,255,255,.16); border-color: rgba(255,255,255,.44); }
.btn-outline { border: 1px solid var(--line-strong); color: var(--navy); background: #fff; }
.btn-outline:hover { border-color: var(--teal); color: var(--teal); box-shadow: var(--sh-1); }

/* ---------- 卡片统一精致 hover ---------- */
.product-card, .service-item, .case-card, .v-card, .fv-card, .sp-card,
.cat-card, .mini-card, .mile, .cap, .city, .faq-item, .stat-box, .reserved-card, .form-card {
  transition: transform .34s var(--ease-out), box-shadow .34s var(--ease-out), border-color .34s;
}
.product-card:hover, .service-item:hover, .case-card:hover, .v-card:hover, .fv-card:hover,
.sp-card:hover, .cat-card:hover, .mini-card:hover, .mile:hover, .cap:hover, .faq-item:hover {
  box-shadow: var(--sh-3);
}
.case-card { border-radius: var(--r-md); overflow: hidden; }
.case-thumb { overflow: hidden; }
.case-thumb img { transition: transform .7s var(--ease-out); }
.case-card:hover .case-thumb img { transform: scale(1.045); }

/* ---------- 图片细节：轻微提亮 + 饱和，照片更通透 ---------- */
.svc-media img, .case-thumb img, .product-thumb img, .p-line-media img, .about-fig img {
  filter: saturate(1.04) contrast(1.02);
}

/* ---------- 面包屑 ---------- */
.crumbs a { transition: color .2s; }
.crumb-sep { color: var(--line-strong); }

/* ---------- 页脚精细化 ---------- */
.footer { border-top: 1px solid rgba(255,255,255,.1); }
.footer-grid { gap: var(--sp-6) var(--sp-7); }
.footer-col h4 {
  font-size: 14px; letter-spacing: .6px; color: #fff; margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}
.footer-col h4::before {
  content: ""; width: 3px; height: 13px; border-radius: 2px; background: var(--amber);
}
.footer-col a, .footer-col li { transition: color .2s; }
.footer-col a:hover { color: var(--teal-light); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); }

/* ---------- FAQ 展开动画更顺 ---------- */
.faq-item summary { transition: background .25s, color .25s; }
.faq-item summary:hover { background: rgba(18,58,82,.03); }
.faq-item[open] summary { color: var(--teal); }
.faq-item summary::after { transition: transform .3s var(--ease-spring); }
.faq-item[open] summary::after { transform: rotate(90deg); }

/* ---------- 表单精细化 ---------- */
.form-input, .form-textarea, .form-select {
  border: 1px solid var(--line-strong); background: #fff; border-radius: var(--r-sm);
  transition: border-color .25s, box-shadow .25s, background .25s;
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--teal); box-shadow: 0 0 0 3px rgba(27,127,121,.12); outline: none;
}

/* ---------- 桌面滚动条 ---------- */
@media (min-width: 768px) and (pointer: fine) {
  ::-webkit-scrollbar { width: 10px; height: 10px; }
  ::-webkit-scrollbar-track { background: #F2F6F7; }
  ::-webkit-scrollbar-thumb { background: #C3D2DA; border-radius: 6px; border: 2px solid #F2F6F7; }
  ::-webkit-scrollbar-thumb:hover { background: #9FB3BF; }
}

/* ---------- 选中色 ---------- */
::selection { background: rgba(226,112,58,.22); color: var(--navy-deep); }

/* ---------- 分区节奏：深浅交替更明显 ---------- */
.section { padding: var(--sp-8) 0; }
@media (min-width: 768px) { .section { padding: var(--sp-9) 0; } }
.bg-paper { background: linear-gradient(180deg, #F7FAFB 0%, #F4F7F8 100%); }
.bg-navy { background: linear-gradient(165deg, #0B2839 0%, #123A52 55%, #17465F 100%); }

/* ---------- 联系页 / 留资区深色化 ---------- */
.contact-form-wrap {
  background: linear-gradient(160deg, #0B2839 0%, #123A52 60%, #17465F 100%);
  border-radius: var(--r-lg); overflow: hidden;
}
.contact-form-wrap .form-input, .contact-form-wrap .form-textarea, .contact-form-wrap .form-select {
  background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.18); color: #fff;
}
.contact-form-wrap .form-input::placeholder, .contact-form-wrap .form-textarea::placeholder { color: rgba(255,255,255,.42); }
.contact-form-wrap .form-input:focus, .contact-form-wrap .form-textarea:focus {
  border-color: var(--teal-light); box-shadow: 0 0 0 3px rgba(111,211,190,.16); background: rgba(255,255,255,.09);
}
.contact-form-wrap .form-label { color: rgba(255,255,255,.72); }

/* ============ 语言切换（中文 / English） ============ */
.lang-switch {
  display: inline-flex; align-items: center; justify-content: center;
  height: 34px; min-width: 40px; padding: 0 10px; margin-left: 4px;
  border: 1px solid var(--line); border-radius: 18px; background: #fff;
  font-family: var(--font-num); font-size: 12.5px; font-weight: 600; letter-spacing: .6px;
  color: var(--navy); flex-shrink: 0; transition: border-color .2s, color .2s, background .2s;
}
.lang-switch:hover { border-color: var(--teal); color: var(--teal); background: rgba(27,127,121,.06); }
@media (max-width: 480px) {
  .lang-switch { height: 32px; min-width: 34px; padding: 0 7px; font-size: 12px; }
}
.mobile-nav .lang-switch-m {
  display: flex; align-items: center; justify-content: space-between;
  margin: 12px 20px 0; padding: 12px 16px; border: 1px solid var(--line); border-radius: var(--r-sm);
  font-size: 15px; font-weight: 600; color: var(--teal); background: rgba(27,127,121,.05);
}
.mobile-nav .lang-switch-m::after { content: "→"; font-family: var(--font-num); opacity: .7; }
.footer-lang { color: rgba(255,255,255,.6); }
.footer-lang:hover { color: #fff; }
/* 英文站导航文案更长：1200px 以下隐藏顶栏按钮，避免被压缩换行（导航内仍有 Contact 入口） */
@media (max-width: 1199.98px) {
  html[lang="en"] .header .header-cta { display: none; }
}