@charset "utf-8";
/* ==========================================================================
   歆康科技（深圳）有限公司  官网品牌样式
   XenKang Technology — brand layer
   载入顺序：bootstrap.css → style.css → brand.css
   本文件对该模板进行品牌化重制：配色、字体、栅格、组件与响应式。
   ========================================================================== */

/* ---------------------------------- tokens -------------------------------- */
:root {
  --brand: #1b6ef3;
  --brand-d: #0f52c4;
  --brand-l: #4a8cff;
  --brand-soft: #eef4ff;
  --navy: #0b1f3a;
  --navy-d: #071a34;
  --navy-l: #12305a;
  --teal: #14c8a0;
  --violet: #7c5cff;
  --ink: #101828;
  --text: #3d4757;
  --muted: #6b7789;
  --line: #e4e9f1;
  --line-d: #d5dce8;
  --bg: #f5f7fb;
  --white: #fff;
  --radius-s: 8px;
  --radius: 14px;
  --radius-l: 22px;
  --shadow-s: 0 1px 3px rgba(11, 31, 58, .06), 0 1px 2px rgba(11, 31, 58, .04);
  --shadow: 0 10px 28px rgba(11, 31, 58, .09);
  --shadow-l: 0 26px 60px rgba(11, 31, 58, .16);
  --ease: cubic-bezier(.22, .61, .36, 1);
  --header-h: 78px;
}

/* ----------------------------------- base --------------------------------- */
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", sans-serif !important;
  font-size: 15px !important;
  line-height: 1.75 !important;
  color: var(--text) !important;
  background: var(--white) !important;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: inherit;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -.01em;
}

p { color: var(--text); }

a {
  color: var(--brand);
  text-decoration: none;
  transition: color .22s var(--ease);
}

a:hover { color: var(--brand-d); text-decoration: none; }

img { max-width: 100%; border: 0; }

ul, ol { list-style: none; }

::selection { background: rgba(27, 110, 243, .16); color: var(--navy); }

.container {
  padding-left: 22px !important;
  padding-right: 22px !important;
}

/* bootstrap 的 .container::before/::after 是浮动清除用的 table 盒；
   在本站的 Grid / Flex 布局里会变成占位项（例如页脚第 1 列被空占），统一去掉。 */
.container::before,
.container::after {
  content: none !important;
  display: none !important;
}

@media (min-width: 1200px) {
  .container { width: 1200px !important; }
}

/* --------------------------------- header --------------------------------- */
header.site-header {
  position: sticky !important;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, .92);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  z-index: 900;
  animation: none !important;
  min-height: var(--header-h);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
}

a.brand {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  padding: 0;
}

a.brand img {
  height: 42px;
  width: auto;
  display: block;
}

/* navigation */
.site-nav { display: flex; align-items: center; gap: 26px; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
}

.nav-list > li { position: relative; }

.nav-list > li > a {
  display: block;
  padding: 8px 13px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  border-radius: 8px;
  white-space: nowrap;
  transition: all .2s var(--ease);
}

.nav-list > li > a:hover {
  color: var(--brand);
  background: var(--brand-soft);
}

.nav-list > li > a.is-active {
  color: var(--brand);
  font-weight: 600;
}

.nav-list > li > a.is-active::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: -2px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--brand), var(--teal));
}

/* nav dropdown */
.nav-list > li.has-sub > a::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin: 0 0 2px 7px;
  border-right: 1.6px solid currentColor;
  border-bottom: 1.6px solid currentColor;
  transform: rotate(45deg);
  opacity: .55;
  transition: transform .2s var(--ease);
}

.nav-list > li.has-sub:hover > a::before { transform: rotate(225deg); margin-bottom: 6px; }

.sub-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translate(-50%, 8px);
  min-width: 232px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 8px;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transition: all .22s var(--ease);
  z-index: 20;
}

.nav-list > li.has-sub:hover .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.sub-menu li a {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--text);
  white-space: nowrap;
}

.sub-menu li a:hover { background: var(--brand-soft); color: var(--brand); }
.sub-menu li a span { float: right; color: var(--muted); font-size: 12px; }

/* nav cta */
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand), #2f86ff);
  color: #fff !important;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 6px 16px rgba(27, 110, 243, .28);
  transition: all .22s var(--ease);
  white-space: nowrap;
}

.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 10px 22px rgba(27, 110, 243, .36); }

/* hamburger */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 11px 10px;
  border: 1px solid var(--line-d);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 4px 0;
  border-radius: 2px;
  background: var(--ink);
  transition: all .25s var(--ease);
}

.nav-toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------------------------------- hero ---------------------------------- */
.hero, .page-hero {
  position: relative;
  overflow: hidden;
  background-color: var(--navy-d);
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

.hero { min-height: 588px; display: flex; align-items: center; }

.hero::after, .page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 26, 52, .92) 0%, rgba(7, 26, 52, .72) 46%, rgba(7, 26, 52, .18) 78%, rgba(7, 26, 52, .05) 100%);
  pointer-events: none;
}

.hero-inner, .page-hero .container { position: relative; z-index: 2; }

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 20px;
  padding: 6px 14px 6px 8px;
  border-radius: 999px;
  background: rgba(94, 234, 212, .1);
  border: 1px solid rgba(94, 234, 212, .3);
  color: #5eead4 !important;
  font-size: 12.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.hero-kicker::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #5eead4;
  box-shadow: 0 0 0 4px rgba(94, 234, 212, .18);
}

.hero-title {
  margin: 0 0 22px;
  font-size: 60px;
  line-height: 1.16;
  font-weight: 800;
  color: #fff !important;
  letter-spacing: -.02em;
  max-width: 760px;
}

.hero-title em {
  font-style: normal;
  background: linear-gradient(100deg, #6ee7ff 0%, #5eead4 48%, #a78bfa 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  margin: 0 0 12px;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: .04em;
  color: #a9c3e6 !important;
}

.hero-desc {
  margin: 0 0 34px;
  max-width: 560px;
  font-size: 15.5px;
  line-height: 1.85;
  color: #c3d3e8 !important;
}

.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }

/* -------------------------------- buttons -------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .24s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand) 0%, #3a8bff 100%);
  color: #fff !important;
  box-shadow: 0 10px 24px rgba(27, 110, 243, .32);
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(27, 110, 243, .4); color: #fff; }

.btn-ghost {
  background: rgba(255, 255, 255, .07);
  border-color: rgba(255, 255, 255, .34);
  color: #fff !important;
}

.btn-ghost:hover { background: rgba(255, 255, 255, .16); border-color: rgba(255, 255, 255, .6); color: #fff; }

.btn-outline {
  border-color: var(--line-d);
  background: #fff;
  color: var(--ink) !important;
}

.btn-outline:hover { border-color: var(--brand); color: var(--brand) !important; box-shadow: var(--shadow-s); }

.btn-sm { padding: 9px 20px; font-size: 14px; }

.btn .arw { transition: transform .24s var(--ease); }
.btn:hover .arw { transform: translateX(4px); }

/* --------------------------- section scaffolding -------------------------- */
.section { padding: 88px 0; position: relative; }
.section--tight { padding: 64px 0; }
.section--grey { background: var(--bg); }
.section--dark { background: var(--navy-d); color: #cbd8ea; }
.section--dark .sec-title { color: #fff; }
.section--dark .sec-desc { color: #9db2ce; }

.sec-head { max-width: 760px; margin: 0 auto 52px; text-align: center; }
.sec-head--left { margin-left: 0; text-align: left; }

.sec-kicker {
  display: inline-block;
  margin: 0 0 14px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--brand) !important;
}

.sec-head--left .sec-kicker { color: var(--brand) !important; }

.sec-title {
  margin: 0 0 16px;
  font-size: 36px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -.02em;
}

.sec-desc { margin: 0; font-size: 15.5px; line-height: 1.85; color: var(--muted); }

.sec-more { margin-top: 46px; text-align: center; }

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

/* ------------------------------- svc cards -------------------------------- */
.svc-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 34px 28px 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  transition: all .28s var(--ease);
  overflow: hidden;
}

.svc-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--teal));
  opacity: 0;
  transition: opacity .28s var(--ease);
}

.svc-card:hover {
  transform: translateY(-6px);
  border-color: rgba(27, 110, 243, .3);
  box-shadow: var(--shadow-l);
}

.svc-card:hover::before { opacity: 1; }

.svc-ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  margin-bottom: 22px;
  border-radius: 15px;
  background: var(--brand-soft);
  color: var(--brand);
}

.svc-ico svg { width: 27px; height: 27px; }

.svc-card h3 { margin: 0 0 8px; font-size: 20px; }
.svc-card .svc-en { display: block; margin-bottom: 14px; font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.svc-card p.svc-desc { margin: 0 0 18px; font-size: 14px; line-height: 1.8; color: var(--muted); }

.svc-card ul.svc-points { margin: 0 0 22px; padding: 0; }

.svc-card ul.svc-points li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 7px;
  font-size: 13.5px;
  color: var(--text);
}

.svc-card ul.svc-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
}

.svc-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand) !important;
}

.svc-link .arw { transition: transform .24s var(--ease); }
.svc-card:hover .svc-link .arw { transform: translateX(5px); }

/* ------------------------------ product cards ----------------------------- */
.prod-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .28s var(--ease);
}

.prod-card:hover {
  transform: translateY(-6px);
  border-color: rgba(27, 110, 243, .28);
  box-shadow: var(--shadow-l);
}

.prod-shot {
  position: relative;
  display: block;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: #eef2f8;
}

.prod-shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .5s var(--ease);
}

.prod-card:hover .prod-shot img { transform: scale(1.045); }

.prod-cat {
  position: absolute;
  left: 14px;
  top: 14px;
  padding: 4px 11px;
  border-radius: 999px;
  background: rgba(7, 26, 52, .72);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: #dbe7f6;
  font-size: 11.5px;
  letter-spacing: .04em;
}

.prod-body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1 1 auto; }
.prod-body h3 { margin: 0 0 10px; font-size: 19px; line-height: 1.45; }
.prod-body h3 a { color: var(--ink); }
.prod-body h3 a:hover { color: var(--brand); }
.prod-body p { margin: 0 0 16px; font-size: 13.5px; line-height: 1.8; color: var(--muted); }

.prod-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 18px; }

.prod-tags span {
  padding: 3px 10px;
  border-radius: 6px;
  background: var(--bg);
  border: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}

.prod-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; }
.prod-foot .svc-link { font-size: 13.5px; }
.prod-foot .prod-arrow {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--line-d);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 13px;
  transition: all .24s var(--ease);
}
.prod-card:hover .prod-arrow { background: var(--brand); border-color: var(--brand); color: #fff; }

/* 横向排列的产品卡（案例详情里引用产品时用） */
.prod-card--row { flex-direction: row; }
.prod-card--row .prod-shot { flex: 0 0 320px; aspect-ratio: 3 / 2; }
.prod-card--row .prod-body { justify-content: center; }

@media (max-width: 767px) {
  .prod-card--row { flex-direction: column; }
  .prod-card--row .prod-shot { flex: none; width: 100%; }
}

/* --------------------------------- stats ---------------------------------- */
.stat-band {
  background: linear-gradient(120deg, var(--navy-d) 0%, var(--navy-l) 62%, #17406e 100%);
  border-radius: var(--radius-l);
  padding: 46px 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
  overflow: hidden;
}

.stat-band::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -120px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(94, 234, 212, .22), transparent 68%);
}

.stat { position: relative; text-align: center; padding: 0 10px; }

.stat + .stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12%;
  height: 76%;
  width: 1px;
  background: rgba(255, 255, 255, .13);
}

.stat .num {
  display: block;
  font-size: 42px;
  font-weight: 800;
  line-height: 1.1;
  color: #fff;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
}

.stat .num b { font-weight: inherit; font-variant-numeric: tabular-nums; }
.stat .num small { font-size: 17px; font-weight: 600; margin-left: 3px; color: #7fe3cd; }
.stat .label { display: block; margin-top: 9px; font-size: 13.5px; color: #9db2ce; }

/* -------------------------------- process --------------------------------- */
.steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }

.step {
  position: relative;
  padding: 30px 18px 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-align: center;
  transition: all .26s var(--ease);
}

.step:hover { border-color: rgba(27, 110, 243, .32); box-shadow: var(--shadow); transform: translateY(-4px); }

.step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 16px;
  border-radius: 50%;
  background: var(--brand-soft);
  color: var(--brand);
  font-size: 15px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  transition: all .26s var(--ease);
}

.step:hover .step-no {
  background: linear-gradient(135deg, var(--brand), #3a8bff);
  color: #fff;
  box-shadow: 0 8px 18px rgba(27, 110, 243, .3);
}

.step h4 { margin: 0 0 8px; font-size: 15.5px; }
.step p { margin: 0; font-size: 12.8px; line-height: 1.7; color: var(--muted); }

.steps-connector {
  position: relative;
  margin-bottom: 0;
}

/* step arrow between cards */
.step::after {
  content: "";
  position: absolute;
  right: -11px;
  top: 50%;
  width: 8px;
  height: 8px;
  margin-top: -4px;
  border-top: 1.5px solid var(--line-d);
  border-right: 1.5px solid var(--line-d);
  transform: rotate(45deg);
  z-index: 2;
}

.step:last-child::after { display: none; }

/* ------------------------------- case cards ------------------------------- */
.case-card {
  position: relative;
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--navy-d);
}

.case-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .6s var(--ease);
}

.case-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 26, 52, .06) 24%, rgba(7, 26, 52, .82) 100%);
  transition: opacity .3s var(--ease);
}

.case-card:hover img { transform: scale(1.06); }

.case-cap {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 20px;
  z-index: 2;
  color: #fff;
}

.case-cap .ind {
  display: inline-block;
  margin-bottom: 9px;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(94, 234, 212, .16);
  border: 1px solid rgba(94, 234, 212, .4);
  color: #7ff0d8;
  font-size: 11.5px;
  letter-spacing: .05em;
}

.case-cap h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.5;
  color: #fff !important;
  font-weight: 700;
}

.case-cap p {
  margin: 6px 0 0;
  font-size: 12.8px;
  line-height: 1.6;
  color: #b9cbe2 !important;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: all .3s var(--ease);
}

.case-card:hover .case-cap p { max-height: 60px; opacity: 1; }

/* -------------------------------- news list ------------------------------- */
.news-item {
  display: flex;
  gap: 26px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  transition: all .24s var(--ease);
}

.news-item:first-child { padding-top: 0; }

.news-thumb {
  flex: 0 0 216px;
  height: 138px;
  border-radius: var(--radius-s);
  overflow: hidden;
  background: var(--bg);
}

.news-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s var(--ease); }
.news-item:hover .news-thumb img { transform: scale(1.05); }

.news-body { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; }

.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 7px;
  font-size: 12.5px;
  color: var(--muted);
}

.news-meta .cat {
  padding: 2px 9px;
  border-radius: 5px;
  background: var(--brand-soft);
  color: var(--brand);
  font-weight: 600;
}

.news-body h3 { margin: 0 0 8px; font-size: 17.5px; line-height: 1.55; }
.news-body h3 a { color: var(--ink); }
.news-body h3 a:hover { color: var(--brand); }
.news-body p { margin: 0 0 12px; font-size: 13.5px; line-height: 1.8; color: var(--muted); }
.news-more { margin-top: auto; font-size: 13.5px; font-weight: 600; color: var(--brand) !important; }

/* news list small (home) */
.news-mini { display: flex; flex-direction: column; }

.news-mini li {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 15px 0;
  border-bottom: 1px dashed var(--line);
}

.news-mini li:last-child { border-bottom: 0; }
.news-mini .date { flex: 0 0 76px; font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }

.news-mini .tit {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 14.5px;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: all .24s var(--ease);
}

.news-mini .tit:hover { color: var(--brand); transform: translateX(4px); }

/* ------------------------------- partners --------------------------------- */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.partner-grid li {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 92px;
  padding: 18px;
  background: #fff;
  transition: background .24s var(--ease);
}

.partner-grid li img {
  max-height: 40px;
  width: auto;
  filter: grayscale(100%);
  opacity: .78;
  transition: all .26s var(--ease);
}

.partner-grid li:hover { background: #fbfcfe; }
.partner-grid li:hover img { filter: grayscale(0); opacity: 1; }

/* -------------------------------- cta band -------------------------------- */
.cta-band {
  position: relative;
  overflow: hidden;
  padding: 60px 56px;
  border-radius: var(--radius-l);
  background: linear-gradient(115deg, var(--navy-d) 0%, #12356a 58%, #1a4a8f 100%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  flex-wrap: wrap;
}

.cta-band::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -100px;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(20, 200, 160, .26), transparent 66%);
}

.cta-band h2 { position: relative; margin: 0 0 12px; font-size: 31px; color: #fff; line-height: 1.35; }
.cta-band p { position: relative; margin: 0; font-size: 14.5px; color: #a9c3e6; }
.cta-band .cta-actions { position: relative; display: flex; gap: 13px; flex-wrap: wrap; }

/* --------------------------------- footer --------------------------------- */
.site-footer {
  background: var(--navy-d);
  color: #93a7c0;
  padding-top: 66px;
  font-size: 13.8px;
  background-image: url(../images/deco/footer-bg.jpg);
  background-position: top center;
  background-repeat: no-repeat;
  background-size: cover;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.25fr;
  gap: 40px;
  padding-bottom: 52px;
}

.footer-brand img { height: 40px; width: auto; margin-bottom: 18px; }
.footer-brand p.f-slogan { margin: 0 0 20px; font-size: 13.5px; line-height: 1.85; color: #93a7c0; max-width: 300px; }
.footer-brand .f-biz { display: flex; flex-wrap: wrap; gap: 8px; }

.footer-brand .f-biz span {
  padding: 3px 10px;
  border-radius: 5px;
  border: 1px solid rgba(255, 255, 255, .13);
  font-size: 12px;
  color: #b6c7dc;
}

.footer-col h4 {
  margin: 4px 0 18px;
  font-size: 14.5px;
  color: #fff;
  font-weight: 600;
  letter-spacing: .02em;
}

.footer-col ul { margin: 0; padding: 0; }
.footer-col li { margin-bottom: 11px; }
.footer-col li a { color: #93a7c0; font-size: 13.5px; }
.footer-col li a:hover { color: #7ff0d8; }

.footer-contact dl { margin: 0; }
.footer-contact dt {
  font-size: 12px;
  color: #6d84a2;
  letter-spacing: .06em;
  margin-top: 15px;
}
.footer-contact dt:first-child { margin-top: 0; }
.footer-contact dd { margin: 4px 0 0; font-size: 13.5px; color: #cddbeb; line-height: 1.7; word-break: break-all; }
.footer-contact dd a { color: #cddbeb; }
.footer-contact dd a:hover { color: #7ff0d8; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .09);
  padding: 20px 0;
  font-size: 12.6px;
  color: #6d84a2;
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom a { color: #8499b4; }
.footer-bottom a:hover { color: #7ff0d8; }

/* -------------------------------- page hero ------------------------------- */
.page-hero {
  min-height: 320px;
  display: flex;
  align-items: center;
  padding: 46px 0;
}

.page-kicker {
  margin: 0 0 12px;
  font-size: 12.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: #5eead4 !important;
}

.page-hero h1 {
  margin: 0 0 14px;
  font-size: 42px;
  line-height: 1.25;
  color: #fff !important;
  font-weight: 800;
  letter-spacing: -.02em;
}

.page-hero .page-desc {
  margin: 0;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.85;
  color: #b9cbe2 !important;
}

/* breadcrumb */
.crumb-bar { border-bottom: 1px solid var(--line); background: #fff; }
.crumb { display: flex; align-items: center; gap: 9px; margin: 0; padding: 14px 0; font-size: 13px; color: var(--muted); }
.crumb li { color: var(--muted); }
.crumb li a { color: var(--muted); }
.crumb li a:hover { color: var(--brand); }
.crumb li.sep { color: var(--line-d); }
.crumb li.cur { color: var(--ink); font-weight: 500; }

/* --------------------------------- article -------------------------------- */
.article-wrap { padding: 52px 0 76px; }

.article {
  max-width: 860px;
  margin: 0 auto;
  background: #fff;
}

.article-head { padding-bottom: 26px; border-bottom: 1px solid var(--line); margin-bottom: 32px; }
.article-head h1 { margin: 0 0 14px; font-size: 32px; line-height: 1.4; }
.article-meta { display: flex; flex-wrap: wrap; gap: 16px; font-size: 13px; color: var(--muted); }
.article-meta .cat { color: var(--brand); font-weight: 600; }

.article-body p { margin: 0 0 20px; font-size: 15.5px; line-height: 2; color: var(--text); }
.article-body h2 { margin: 38px 0 16px; font-size: 21px; }
.article-body h3 { margin: 30px 0 14px; font-size: 17.5px; }
.article-body img { border-radius: var(--radius); margin: 12px 0 24px; }
.article-body img.article-cover { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; margin: 0 0 30px; }
.article-body ul { margin: 0 0 20px; padding: 0; }
.article-body ul li { position: relative; padding-left: 20px; margin-bottom: 9px; font-size: 15.5px; line-height: 1.9; }
.article-body ul li::before { content: ""; position: absolute; left: 0; top: 11px; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); }
.article-body blockquote {
  margin: 26px 0;
  padding: 20px 26px;
  border-left: 3px solid var(--brand);
  background: var(--brand-soft);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  color: var(--text);
  font-size: 15px;
}

.article-foot { margin-top: 38px; padding-top: 26px; border-top: 1px solid var(--line); }

.pager-nav { display: flex; justify-content: space-between; gap: 18px; margin-top: 34px; }
.pager-nav a {
  flex: 1 1 0;
  padding: 15px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  font-size: 13.8px;
  color: var(--text);
  background: #fff;
  transition: all .24s var(--ease);
}
.pager-nav a:hover { border-color: var(--brand); color: var(--brand); box-shadow: var(--shadow-s); }
.pager-nav a .lbl { display: block; font-size: 12px; color: var(--muted); margin-bottom: 5px; }
.pager-nav a.next { text-align: right; }

.back-link { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--brand) !important; }

/* ----------------------------- product detail ----------------------------- */
.pd-hero { padding: 56px 0 0; }

.pd-intro {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 54px;
  align-items: center;
  padding-bottom: 60px;
}

.pd-intro h1 { margin: 0 0 16px; font-size: 38px; line-height: 1.28; letter-spacing: -.02em; }
.pd-intro .pd-tagline { margin: 0 0 18px; font-size: 16px; color: var(--brand); font-weight: 600; }
.pd-intro .pd-summary { margin: 0 0 26px; font-size: 15px; line-height: 1.95; color: var(--text); }

.pd-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.pd-meta span {
  padding: 5px 13px;
  border-radius: 999px;
  background: var(--brand-soft);
  border: 1px solid rgba(27, 110, 243, .16);
  color: var(--brand-d);
  font-size: 12.5px;
  font-weight: 500;
}

.pd-shot {
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-l);
  border: 1px solid var(--line);
  background: #eef2f8;
}

.pd-shot img { width: 100%; display: block; }

.pd-section { padding: 62px 0; border-top: 1px solid var(--line); }
.pd-section:first-of-type { border-top: 0; }
.pd-section .sec-head { margin-bottom: 40px; }

.feat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

.feat {
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition: all .26s var(--ease);
}

.feat:hover { border-color: rgba(27, 110, 243, .3); box-shadow: var(--shadow); transform: translateY(-3px); }
.feat .fi { display: block; margin-bottom: 11px; font-size: 12px; font-weight: 700; color: var(--brand); letter-spacing: .08em; }
.feat p { margin: 0; font-size: 14px; line-height: 1.7; color: var(--ink); font-weight: 500; }

.hl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }

.hl {
  padding: 30px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #fff, #fbfcff);
}

.hl .hl-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 16px;
  border-radius: 11px;
  background: var(--brand-soft);
  color: var(--brand);
  font-weight: 800;
  font-size: 14px;
}

.hl h3 { margin: 0 0 10px; font-size: 17px; }
.hl p { margin: 0; font-size: 13.8px; line-height: 1.8; color: var(--muted); }

.pd-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding: 34px 30px;
  border-radius: var(--radius);
  background: var(--bg);
  border: 1px solid var(--line);
}

.pd-metric { text-align: center; }
.pd-metric .num { display: block; font-size: 32px; font-weight: 800; color: var(--brand); line-height: 1.2; font-variant-numeric: tabular-nums; }
.pd-metric .label { display: block; margin-top: 6px; font-size: 13px; color: var(--muted); }

.chip-list { display: flex; flex-wrap: wrap; gap: 10px; }
.chip-list span {
  padding: 7px 15px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 13.5px;
  color: var(--text);
}

.audience-box {
  padding: 30px 32px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--brand-soft), #f2f8ff);
  border: 1px solid rgba(27, 110, 243, .16);
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--text);
}

/* ------------------------------ case detail ------------------------------- */
.cd-hero { padding: 52px 0 0; }
.cd-head { max-width: 880px; margin: 0 auto 40px; text-align: center; }
.cd-head .cd-ind {
  display: inline-block;
  margin-bottom: 16px;
  padding: 4px 13px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-d);
  font-size: 12.5px;
  font-weight: 600;
}
.cd-head h1 { margin: 0 0 16px; font-size: 36px; line-height: 1.35; letter-spacing: -.02em; }
.cd-head p { margin: 0; font-size: 15.5px; line-height: 1.9; color: var(--muted); }

.cd-cover {
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-l);
  margin-bottom: 56px;
}
.cd-cover img { width: 100%; display: block; }

.cd-body { max-width: 900px; margin: 0 auto; }

.cd-block { margin-bottom: 44px; }
.cd-block h2 { margin: 0 0 18px; font-size: 23px; display: flex; align-items: center; gap: 12px; }
.cd-block h2::before { content: ""; width: 4px; height: 20px; border-radius: 2px; background: linear-gradient(180deg, var(--brand), var(--teal)); }
.cd-block p { margin: 0 0 16px; font-size: 15px; line-height: 1.95; }

.result-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 8px 0 4px; }
.result {
  padding: 24px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #fff;
  text-align: center;
}
.result .num { display: block; font-size: 25px; font-weight: 800; color: var(--brand); line-height: 1.25; letter-spacing: -.01em; }
.result .label { display: block; margin-top: 7px; font-size: 12.8px; color: var(--muted); line-height: 1.6; }

.cd-quote {
  position: relative;
  padding: 34px 40px 34px 46px;
  border-radius: var(--radius);
  background: var(--bg);
  border-left: 3px solid var(--brand);
}
.cd-quote::before {
  content: "\201C";
  position: absolute;
  left: 16px;
  top: 4px;
  font-size: 52px;
  line-height: 1;
  color: rgba(27, 110, 243, .22);
  font-family: Georgia, serif;
}
.cd-quote p { margin: 0 0 12px; font-size: 15.5px; line-height: 1.9; color: var(--ink); }
.cd-quote cite { font-style: normal; font-size: 13px; color: var(--muted); }

/* --------------------------------- about ---------------------------------- */
.about-split { display: grid; grid-template-columns: 1fr 1.06fr; gap: 60px; align-items: center; }
.about-split h2 { margin: 0 0 20px; font-size: 32px; line-height: 1.35; }
.about-split p { margin: 0 0 16px; font-size: 15px; line-height: 1.95; }

.about-media { position: relative; }
.about-media img { width: 100%; border-radius: var(--radius-l); display: block; box-shadow: var(--shadow-l); }
.about-media .badge-float {
  position: absolute;
  right: -18px;
  bottom: -20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 22px;
  max-width: 230px;
}
.about-media .badge-float strong { display: block; font-size: 15px; color: var(--ink); margin-bottom: 4px; }
.about-media .badge-float span { font-size: 12.5px; color: var(--muted); line-height: 1.6; }

.mvv { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.mvv-card {
  padding: 32px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #fff;
}
.mvv-card .mvv-ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  border-radius: 12px;
  background: var(--brand-soft);
  color: var(--brand);
}
.mvv-card h3 { margin: 0 0 10px; font-size: 18px; }
.mvv-card p { margin: 0; font-size: 14px; line-height: 1.85; color: var(--muted); }

.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.value-item { padding: 26px 22px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.value-item .vi-no { font-size: 12px; font-weight: 800; letter-spacing: .1em; color: var(--brand); }
.value-item h4 { margin: 10px 0 8px; font-size: 16.5px; }
.value-item p { margin: 0; font-size: 13.5px; line-height: 1.8; color: var(--muted); }

.timeline { position: relative; padding-left: 28px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--brand), var(--teal), transparent);
  border-radius: 2px;
}
.timeline li { position: relative; padding-bottom: 32px; }
.timeline li:last-child { padding-bottom: 0; }
.timeline li::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 7px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #fff;
  border: 2.5px solid var(--brand);
  box-shadow: 0 0 0 4px var(--brand-soft);
}
.timeline .tl-year { display: inline-block; margin-bottom: 6px; font-size: 12.5px; font-weight: 700; letter-spacing: .08em; color: var(--brand); }
.timeline h4 { margin: 0 0 7px; font-size: 17px; }
.timeline p { margin: 0; font-size: 13.8px; line-height: 1.8; color: var(--muted); }

.office-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.office-grid img { width: 100%; border-radius: var(--radius); display: block; height: 100%; object-fit: cover; }
.office-grid .tall { grid-row: span 2; }
.office-grid img:nth-child(3) { grid-column: 1 / -1; aspect-ratio: 16 / 7; }

/* -------------------------------- contact --------------------------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 46px; align-items: start; }

.contact-cards { display: grid; gap: 14px; }

.contact-card {
  display: flex;
  gap: 16px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition: all .24s var(--ease);
}

.contact-card:hover { border-color: rgba(27, 110, 243, .3); box-shadow: var(--shadow-s); }

.contact-card .cc-ico {
  flex: 0 0 42px;
  height: 42px;
  border-radius: 11px;
  background: var(--brand-soft);
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.contact-card .cc-ico svg { width: 21px; height: 21px; }
.contact-card h4 { margin: 0 0 5px; font-size: 14px; color: var(--muted); font-weight: 500; }
.contact-card p { margin: 0; font-size: 15px; color: var(--ink); font-weight: 600; line-height: 1.65; word-break: break-all; }
.contact-card p small { display: block; font-size: 12.5px; color: var(--muted); font-weight: 400; margin-top: 3px; }

.form-card {
  padding: 36px 34px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  box-shadow: var(--shadow-s);
}

.form-card h3 { margin: 0 0 8px; font-size: 22px; }
.form-card .form-note { margin: 0 0 26px; font-size: 13.5px; color: var(--muted); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 7px; font-size: 13px; color: var(--ink); font-weight: 600; }
.form-group label .req { color: #e5484d; margin-left: 3px; }

.form-control {
  width: 100%;
  height: 46px;
  padding: 0 14px;
  border: 1px solid var(--line-d);
  border-radius: 9px;
  font-size: 14px;
  color: var(--ink);
  background: #fff;
  font-family: inherit;
  transition: all .2s var(--ease);
}

textarea.form-control { height: 118px; padding: 12px 14px; resize: vertical; line-height: 1.7; }

.form-control:focus {
  outline: 0;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(27, 110, 243, .12);
}

.form-control::placeholder { color: #a7b1c0; }

.form-submit { width: 100%; margin-top: 8px; }
.form-tip { margin: 14px 0 0; font-size: 12.4px; color: var(--muted); line-height: 1.7; }
.form-msg { display: none; margin-top: 14px; padding: 11px 14px; border-radius: 8px; font-size: 13.5px; }
.form-msg.ok { display: block; background: #e9f9f3; color: #0d7a5c; border: 1px solid #b9ecd9; }

.map-box {
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg);
  position: relative;
}

.map-box .map-art { width: 100%; display: block; }

/* 纯 CSS 绘制的示意地图（不依赖第三方地图 SDK） */
.map-canvas {
  position: relative;
  height: 430px;
  background-color: #eaf0f7;
  background-image:
    linear-gradient(rgba(27, 110, 243, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 110, 243, .07) 1px, transparent 1px),
    radial-gradient(circle at 28% 38%, rgba(20, 200, 160, .2), transparent 44%),
    radial-gradient(circle at 74% 68%, rgba(27, 110, 243, .18), transparent 48%);
  background-size: 46px 46px, 46px 46px, 100% 100%, 100% 100%;
}

.map-canvas::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, transparent 45.4%, rgba(255, 255, 255, .92) 45.4%, rgba(255, 255, 255, .92) 48.6%, transparent 48.6%),
    linear-gradient(72deg, transparent 29.4%, rgba(255, 255, 255, .85) 29.4%, rgba(255, 255, 255, .85) 32.6%, transparent 32.6%);
}

.map-canvas::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 40%;
  width: 20px;
  height: 20px;
  border-radius: 50% 50% 50% 0;
  transform: translate(-50%, -50%) rotate(-45deg);
  background: var(--brand);
  box-shadow: 0 0 0 9px rgba(27, 110, 243, .16), 0 10px 20px rgba(11, 31, 58, .26);
  animation: mapPulse 2.4s var(--ease) infinite;
}

@keyframes mapPulse {
  0%, 100% { box-shadow: 0 0 0 9px rgba(27, 110, 243, .16), 0 10px 20px rgba(11, 31, 58, .26); }
  50% { box-shadow: 0 0 0 16px rgba(27, 110, 243, .07), 0 10px 20px rgba(11, 31, 58, .26); }
}

.map-pin-card {
  position: absolute;
  left: 24px;
  bottom: 24px;
  right: 24px;
  padding: 18px 22px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .96);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
}
.map-pin-card strong { display: block; font-size: 15px; color: var(--ink); margin-bottom: 5px; }
.map-pin-card span { font-size: 13px; color: var(--muted); line-height: 1.6; }

/* ---------------------------------- faq ----------------------------------- */
.faq-list { max-width: 880px; margin: 0 auto; }

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  margin-bottom: 13px;
  overflow: hidden;
  transition: all .24s var(--ease);
}

.faq-item.is-open { border-color: rgba(27, 110, 243, .34); box-shadow: var(--shadow-s); }

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding: 19px 24px;
  border: 0;
  background: none;
  text-align: left;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  font-family: inherit;
  line-height: 1.6;
}

.faq-q .fi-arrow {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  position: relative;
  transition: transform .26s var(--ease);
}
.faq-q .fi-arrow::before, .faq-q .fi-arrow::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 11px;
  height: 1.7px;
  background: var(--brand);
  border-radius: 2px;
  transform: translate(-50%, -50%);
}
.faq-q .fi-arrow::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform .26s var(--ease); }
.faq-item.is-open .fi-arrow::after { transform: translate(-50%, -50%) rotate(0deg); }

.faq-a { display: none; padding: 0 24px 22px; }
.faq-item.is-open .faq-a { display: block; }
.faq-a p { margin: 0; font-size: 14.2px; line-height: 1.9; color: var(--muted); }

/* ------------------------------ page filter ------------------------------- */
.filter-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin-bottom: 38px; }

.filter-bar button {
  padding: 8px 18px;
  border: 1px solid var(--line-d);
  border-radius: 999px;
  background: #fff;
  color: var(--text);
  font-size: 13.8px;
  font-family: inherit;
  cursor: pointer;
  transition: all .22s var(--ease);
}

.filter-bar button:hover { border-color: var(--brand); color: var(--brand); }

.filter-bar button.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
  font-weight: 600;
}

/* -------------------------------- back top -------------------------------- */
.to-top {
  position: fixed;
  right: 26px;
  bottom: 30px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line-d);
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all .26s var(--ease);
  z-index: 800;
  font-size: 17px;
}

.to-top.is-show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--brand); border-color: var(--brand); color: #fff; }

/* ---------------------------- scroll reveal ------------------------------ */
.reveal-init {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .62s var(--ease), transform .62s var(--ease);
}
.reveal-init.is-in { opacity: 1; transform: none; }

/* ------------------------------- utilities -------------------------------- */
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.text-center { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* =============================== responsive =============================== */
@media (max-width: 1199px) {
  .hero { min-height: 520px; }
  .hero-title { font-size: 50px; }
  .page-hero h1 { font-size: 36px; }
  .section { padding: 68px 0; }
  .sec-title { font-size: 31px; }
  .partner-grid { grid-template-columns: repeat(4, 1fr); }
  .feat-grid { grid-template-columns: repeat(4, 1fr); }
  .pd-intro { gap: 38px; }
  .pd-intro h1 { font-size: 33px; }
  .footer-top { grid-template-columns: 1.4fr 1fr 1fr; gap: 34px; }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 991px) {
  :root { --header-h: 68px; }
  .nav-toggle { display: block; }
  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 18px 22px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 40px rgba(11, 31, 58, .12);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    display: none;
  }
  .site-nav.is-open { display: flex; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-list > li > a { padding: 13px 8px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .nav-list > li > a.is-active::after { display: none; }
  .nav-list > li.has-sub > a::before { float: right; margin-top: 6px; }
  .sub-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    display: none;
    box-shadow: none;
    border: 0;
    background: var(--bg);
    border-radius: 0 0 8px 8px;
    padding: 6px 8px;
    min-width: 0;
  }
  .nav-list > li.has-sub:hover .sub-menu { transform: none; }
  .sub-menu li a { border-bottom: 0; }
  .nav-cta { margin-top: 16px; justify-content: center; }

  .hero { min-height: 480px; }
  .hero-title { font-size: 42px; }
  .hero-desc { font-size: 14.5px; }
  .section { padding: 56px 0; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stat-band { grid-template-columns: repeat(2, 1fr); gap: 28px 10px; padding: 34px 24px; }
  .stat:nth-child(3)::before { display: none; }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .step::after { display: none; }
  .feat-grid, .hl-grid, .mvv, .result-grid, .pd-metrics { grid-template-columns: repeat(2, 1fr); }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .partner-grid { grid-template-columns: repeat(3, 1fr); }
  .pd-intro, .about-split, .contact-grid { grid-template-columns: 1fr; gap: 34px; }
  .pd-intro .pd-shot { order: -1; }
  .office-grid { grid-template-columns: 1fr; }
  .office-grid .tall { grid-row: auto; }
  .cta-band { padding: 40px 30px; flex-direction: column; align-items: flex-start; }
  .cta-band h2 { font-size: 26px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 30px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-contact { grid-column: auto; }
  .about-media .badge-float { right: 12px; bottom: -18px; }
}

@media (max-width: 767px) {
  body { font-size: 14.5px !important; }
  .container { padding-left: 16px !important; padding-right: 16px !important; }
  a.brand img { height: 34px; }

  .hero { min-height: 430px; }
  .hero-title { font-size: 31px; line-height: 1.26; margin-bottom: 16px; }
  .hero-sub { font-size: 15px; }
  .hero-desc { font-size: 13.6px; margin-bottom: 26px; }
  .hero-kicker { font-size: 11px; padding: 5px 11px 5px 7px; }
  .btn { padding: 11px 22px; font-size: 14px; }

  .page-hero { min-height: 220px; padding: 34px 0; }
  .page-hero h1 { font-size: 27px; }
  .page-hero .page-desc { font-size: 13.6px; }

  .section { padding: 44px 0; }
  .section--tight { padding: 36px 0; }
  .sec-head { margin-bottom: 32px; }
  .sec-title { font-size: 24px; }
  .sec-desc { font-size: 14px; }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 16px; }
  .stat-band { grid-template-columns: repeat(2, 1fr); padding: 28px 18px; border-radius: var(--radius); }
  .stat .num { font-size: 30px; }
  .stat .label { font-size: 12px; }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .step { padding: 22px 14px; }
  .step-no { width: 40px; height: 40px; margin-bottom: 12px; }

  .news-item { flex-direction: column; gap: 14px; padding: 18px 0; }
  .news-thumb { flex: none; width: 100%; height: 178px; }
  .news-body h3 { font-size: 16px; }

  .prod-body { padding: 18px 18px 20px; }
  .prod-body h3 { font-size: 17px; }
  .svc-card { padding: 26px 22px 22px; }

  .partner-grid { grid-template-columns: repeat(2, 1fr); }
  .partner-grid li { min-height: 74px; }

  .feat-grid, .hl-grid, .mvv, .result-grid, .pd-metrics, .value-grid { grid-template-columns: 1fr; }

  .cta-band { padding: 30px 22px; border-radius: var(--radius); }
  .cta-band h2 { font-size: 22px; }
  .cta-band p { font-size: 13.5px; }

  .footer-top { grid-template-columns: 1fr; gap: 26px; padding-bottom: 32px; }
  .site-footer { padding-top: 44px; }
  .footer-bottom .container { flex-direction: column; align-items: flex-start; gap: 8px; }

  .article-wrap { padding: 32px 0 48px; }
  .article-head h1 { font-size: 23px; }
  .article-body p { font-size: 15px; line-height: 1.95; }
  .pager-nav { flex-direction: column; }

  .pd-hero { padding: 32px 0 0; }
  .pd-intro h1 { font-size: 26px; }
  .pd-section { padding: 38px 0; }

  .cd-head h1 { font-size: 24px; }
  .cd-block h2 { font-size: 19px; }
  .cd-quote { padding: 26px 22px 26px 34px; }

  .about-split h2 { font-size: 25px; }
  .form-card { padding: 24px 20px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }

  .to-top { right: 14px; bottom: 16px; width: 40px; height: 40px; }
  .filter-bar button { padding: 7px 14px; font-size: 13px; }
}

@media (max-width: 420px) {
  .stat-band { grid-template-columns: 1fr; }
  .stat + .stat::before { display: none; }
  .hero-title { font-size: 26px; }
  .steps { grid-template-columns: 1fr; }
}

/* ---------------------------- print / motion ------------------------------ */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}