:root {
  --brand: #554b9d;
  --brand-deep: #463d86;
  --brand-btn: #554b9d;
  --brand-hot: #6a60ad;
  --brand-soft: #7d74b8;
  --dark: #111114;
  --dark-2: #1a1a1f;
  --dark-3: #24242a;
  --text: #666;
  --text-light: #999;
  --white: #fff;
  --line: #ececec;
  --header-h: 88px;
}

* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  overflow-y: scroll; /* 始终预留纵向滚动条，避免切换页面左右晃动 */
  scrollbar-gutter: stable;
}
body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: #333;
  background: #fff;
  line-height: 1.7;
  font-size: 14px;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: color .2s; }
a:hover { color: var(--brand); }
a.brand,
a.brand:hover,
a.hotline,
a.hotline:hover {
  color: inherit;
  transition: none;
}
img { max-width: 100%; display: block; border: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
.container { width: min(1200px, 94%); margin: 0 auto; }
.btn-more {
  display: inline-block;
  min-width: 120px;
  padding: 10px 28px;
  background: var(--brand-btn);
  color: #fff !important;
  text-align: center;
  font-size: 14px;
  border: none;
  cursor: pointer;
}
.btn-more:hover { background: var(--brand-deep); color: #fff !important; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: #fff;
  box-shadow: 0 1px 8px rgba(0,0,0,.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
}
.brand-logo {
  height: 56px;
  width: 144px;
  display: block;
  object-fit: contain;
  object-position: left center;
  max-width: none;
  background: transparent;
  image-rendering: auto;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  flex: 1 1 auto;
  min-width: 0;
}
.nav > a,
.nav-item > a {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 15px;
  color: #333;
  padding: 8px 0;
  white-space: nowrap;
  line-height: 1.4;
}
.nav > a::after,
.nav-item > a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: transparent;
}
.nav > a.active,
.nav > a:hover,
.nav-item > a.active,
.nav-item > a:hover,
.nav-item.has-sub:hover > a,
.nav-item.is-active > a {
  color: var(--brand);
}
.nav > a.active::after,
.nav-item > a.active::after,
.nav-item.is-active > a::after {
  background: var(--brand);
}
.nav-item {
  position: relative;
  flex: 0 0 auto;
}
.nav-caret {
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 2px;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  opacity: .55;
  transform: translateY(1px);
}
.nav-item.has-sub:hover .nav-caret,
.nav-item.is-active .nav-caret {
  opacity: .9;
}
.nav-sub {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  min-width: 168px;
  padding: 8px 0;
  background: #1c1c24;
  border: 1px solid rgba(255,255,255,.06);
  box-shadow: 0 12px 28px rgba(0,0,0,.22);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
  z-index: 80;
}
.nav-sub::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -10px;
  height: 10px;
}
.nav-item.has-sub:hover .nav-sub,
.nav-item.has-sub:focus-within .nav-sub {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.nav-sub a {
  display: block;
  padding: 10px 18px;
  font-size: 14px;
  color: rgba(255,255,255,.82);
  white-space: nowrap;
  line-height: 1.4;
}
.nav-sub a::after { display: none; }
.nav-sub a:hover,
.nav-sub a.active {
  color: #fff;
  background: rgba(85, 75, 157, .42);
}
.hotline {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  white-space: nowrap;
  color: var(--brand);
}
.hotline-icon {
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  border: 1px solid var(--brand);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 16px;
}
.hotline-text {
  line-height: 1.2;
  white-space: nowrap;
}
.hotline-text small {
  display: block;
  font-size: 12px;
  color: var(--brand);
  white-space: nowrap;
}
.hotline-text strong {
  display: block;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .02em;
  white-space: nowrap;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(10,12,20,.35) 0%, rgba(10,12,20,.55) 45%, rgba(10,12,20,.72) 100%),
    radial-gradient(ellipse at 30% 70%, rgba(91,80,160,.35), transparent 50%),
    linear-gradient(160deg, #0b1a33 0%, #13233f 40%, #1a1020 100%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(transparent 0%, transparent 70%, rgba(0,0,0,.35) 100%),
    repeating-linear-gradient(90deg, rgba(255,255,255,.03) 0 1px, transparent 1px 80px),
    repeating-linear-gradient(0deg, rgba(255,255,255,.02) 0 1px, transparent 1px 60px);
  pointer-events: none;
}
.hero-skyline {
  position: absolute;
  left: 0; bottom: 0;
  width: 58%;
  height: 70%;
  background:
    linear-gradient(180deg, transparent 0%, rgba(20,30,50,.4) 100%),
    radial-gradient(circle at 20% 80%, rgba(255,200,100,.15), transparent 40%),
    radial-gradient(circle at 55% 60%, rgba(255,255,255,.08), transparent 30%);
  clip-path: polygon(0 100%, 0 55%, 4% 52%, 5% 30%, 8% 30%, 8% 45%, 12% 42%, 12% 20%, 16% 20%, 16% 48%, 22% 45%, 22% 28%, 28% 25%, 28% 50%, 35% 35%, 38% 10%, 42% 10%, 42% 40%, 48% 38%, 50% 55%, 58% 50%, 62% 25%, 66% 25%, 66% 48%, 72% 45%, 75% 60%, 82% 40%, 88% 55%, 94% 48%, 100% 58%, 100% 100%);
  opacity: .85;
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  width: min(1200px, 94%);
  margin: 0 auto;
  padding: 80px 0 90px;
  display: flex;
  justify-content: flex-end;
}
.hero-copy {
  max-width: 480px;
  text-align: left;
}
.hero-copy h1 {
  margin: 0 0 18px;
  font-size: clamp(32px, 4.5vw, 46px);
  font-weight: 700;
  color: #fff;
  letter-spacing: .08em;
}
.hero-copy p {
  margin: 0 0 28px;
  font-size: 15px;
  color: rgba(255,255,255,.88);
  line-height: 1.9;
}
.hero-dots {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 2;
}
.hero-dots i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,.45);
}
.hero-dots i.on { background: #fff; }

.page-hero {
  background:
    linear-gradient(90deg, rgba(10,12,20,.65), rgba(10,12,20,.55)),
    linear-gradient(160deg, #0b1a33, #1a1020);
  color: #fff;
  padding: 70px 0 60px;
  text-align: center;
}
.page-hero h1 {
  margin: 0;
  font-size: 36px;
  font-weight: 700;
  letter-spacing: .12em;
  color: #fff;
}
.page-hero p {
  margin: 14px 0 0;
  color: rgba(255,255,255,.8);
}

/* ===== Section chrome ===== */
.section {
  padding: 70px 0 80px;
}
.section-dark {
  background: var(--dark);
  color: #fff;
}
.section-dark-2 { background: var(--dark-2); color: #fff; }
.section-light { background: #f7f7f7; }
.sec-head {
  text-align: center;
  margin-bottom: 48px;
}
.sec-head .en {
  display: block;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: .18em;
  color: #b0b0b0;
  text-transform: uppercase;
}
.section-dark .sec-head .en,
.section-dark-2 .sec-head .en { color: #6a6a6a; }
.sec-head .cn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  color: var(--brand);
  font-size: 16px;
  font-weight: 600;
}
.sec-head .cn::before,
.sec-head .cn::after {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--brand);
}

/* ===== Business grid ===== */
.biz-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.biz-card {
  border: 1px solid rgba(255,255,255,.18);
  padding: 36px 22px 30px;
  text-align: center;
  min-height: 220px;
  transition: border-color .2s, background .2s, transform .2s;
  color: #fff;
  background: rgba(255,255,255,.02);
}
.biz-card:hover {
  border-color: rgba(255,255,255,.45);
  background: rgba(255,255,255,.05);
  transform: translateY(-3px);
  color: #fff;
}
.biz-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 22px;
  font-weight: 700;
}
.biz-card h3 {
  margin: 0 0 12px;
  font-size: 18px;
  font-weight: 600;
  color: #fff;
}
.biz-card p {
  margin: 0;
  font-size: 13px;
  color: #aaa;
  line-height: 1.8;
}
.sec-more {
  text-align: center;
  margin-top: 40px;
}

/* ===== News / Dynamic ===== */
.news-layout {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 28px;
  align-items: start;
}
.news-feature {
  background: #fff;
  border: 1px solid var(--line);
  min-height: 280px;
  padding: 28px;
}
.news-feature h3 {
  margin: 0 0 14px;
  font-size: 20px;
  color: #222;
}
.news-feature p { margin: 0; color: var(--text); }
.news-side-list a {
  display: block;
  padding: 16px 0;
  border-bottom: 1px solid #333;
  color: #ddd;
}
.section-light .news-side-list a {
  border-bottom-color: var(--line);
  color: #333;
}
.news-side-list a:hover { color: var(--brand); }
.news-side-list .date {
  display: block;
  font-size: 12px;
  color: var(--text-light);
  margin-top: 4px;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.news-card {
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  padding: 24px 22px 26px;
  color: inherit;
  transition: box-shadow .2s, border-color .2s;
}
.section-dark .news-card,
.section-dark-2 .news-card {
  background: var(--dark-3);
  border-color: #3a3a3a;
  color: #eee;
}
.news-card:hover {
  border-color: var(--brand);
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
  color: inherit;
}
.news-meta {
  margin: 0 0 8px;
  font-size: 12px;
  color: var(--text-light);
}
.news-card h3 {
  margin: 0 0 10px;
  font-size: 17px;
  color: #222;
  line-height: 1.45;
}
.section-dark .news-card h3,
.section-dark-2 .news-card h3 { color: #fff; }
.news-card p {
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.section-dark .news-card p,
.section-dark-2 .news-card p { color: #aaa; }
.more-link {
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
}

/* ===== About ===== */
.about-row {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 40px;
  align-items: center;
}
.about-visual {
  min-height: 320px;
  background:
    linear-gradient(145deg, rgba(91,80,160,.9), rgba(20,20,20,.92)),
    repeating-linear-gradient(-45deg, rgba(255,255,255,.04) 0 10px, transparent 10px 20px);
}
.about-copy h2 {
  margin: 0 0 16px;
  font-size: 28px;
  color: #222;
}
.section-dark .about-copy h2 { color: #fff; }
.about-copy p {
  margin: 0 0 14px;
  color: var(--text);
  line-height: 1.9;
}
.section-dark .about-copy p { color: #bbb; }

/* ===== Advantage ===== */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.adv-item {
  display: block;
  padding: 28px 24px;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.12);
  color: #fff;
}
.adv-item:hover { border-color: rgba(255,255,255,.35); color: #fff; }
.adv-item h3 {
  margin: 0 0 10px;
  font-size: 18px;
  color: #fff;
}
.adv-item h3::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 10px;
  background: var(--brand);
  vertical-align: middle;
}
.adv-item p { margin: 0; color: #aaa; font-size: 13px; line-height: 1.85; }

/* ===== Process ===== */
.process-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}
.process-item {
  text-align: center;
  padding: 28px 12px;
  border: 1px solid rgba(255,255,255,.15);
  color: #fff;
  position: relative;
}
.process-item .num {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 10px;
}
.process-item h4 {
  margin: 0 0 8px;
  font-size: 16px;
  color: #fff;
}
.process-item p {
  margin: 0;
  font-size: 12px;
  color: #999;
}

/* ===== Team ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.team-card {
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  text-align: center;
  overflow: hidden;
  color: inherit;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.section-dark .team-card,
.section-dark-2 .team-card {
  background: var(--dark-3);
  border-color: #3a3a3a;
  color: #eee;
}
.team-card:hover {
  transform: translateY(-4px);
  border-color: var(--brand);
  box-shadow: 0 12px 28px rgba(85, 75, 157, .14);
  color: inherit;
}
.team-photo {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  background:
    linear-gradient(160deg, rgba(85,75,157,.35), rgba(20,20,28,.9)),
    #1a1a22;
  overflow: hidden;
}
.team-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.team-avatar {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  font-size: 56px;
  font-weight: 700;
  color: rgba(255,255,255,.88);
  letter-spacing: .08em;
  background:
    radial-gradient(circle at 50% 30%, rgba(85,75,157,.55), transparent 55%),
    linear-gradient(160deg, #2a2450, #121218);
}
.team-meta {
  padding: 18px 14px 22px;
}
.team-meta h3 {
  margin: 0 0 6px;
  font-size: 18px;
  color: #222;
}
.section-dark .team-meta h3,
.section-dark-2 .team-meta h3 { color: #fff; }
.team-role {
  margin: 0;
  font-size: 13px;
  color: var(--brand);
  font-weight: 600;
}
.team-desc {
  margin: 10px 0 0;
  font-size: 12px;
  color: var(--text-light);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== Contact block ===== */
.contact-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.contact-panel {
  background: #111;
  color: #ddd;
  padding: 36px 32px;
  min-height: 260px;
}
.contact-panel h3 {
  margin: 0 0 20px;
  font-size: 20px;
  color: #fff;
}
.contact-panel p {
  margin: 0 0 12px;
  line-height: 1.9;
}
.contact-panel a { color: #fff; }
.contact-panel a:hover { color: var(--brand); }
.map-panel {
  min-height: 260px;
  background:
    linear-gradient(180deg, #2a3344, #1c2430);
  display: grid;
  place-items: center;
  color: #9aa3b2;
  border: 1px solid #333;
}

/* ===== Article ===== */
.content-wrap { padding: 48px 0 70px; background: #f7f7f7; }
.article {
  max-width: 900px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--line);
  padding: 40px 42px;
}
.article-crumb {
  margin-bottom: 16px;
  font-size: 13px;
  color: #999;
}
.article-crumb a:hover { color: var(--brand); }
.article h1 {
  margin: 0 0 22px;
  font-size: 28px;
  color: #222;
  line-height: 1.4;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.article-body {
  color: #444;
  font-size: 15px;
  line-height: 1.9;
}
.article-body p { margin: 0 0 1em; }
.article-body img { margin: 16px 0; }
.list-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 56px 20px;
  color: #999;
  background: #fafafa;
  border: 1px dashed #ddd;
}

/* ===== Footer ===== */
.site-footer {
  background: #111;
  color: #aaa;
  padding: 48px 0 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid #2a2a2a;
}
.footer-top h4 {
  margin: 0 0 16px;
  color: #fff;
  font-size: 16px;
}
.footer-top p { margin: 0 0 8px; line-height: 1.9; }
.footer-top a { color: #aaa; }
.footer-top a:hover { color: var(--brand); }
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
}
.footer-bottom {
  padding: 18px 0;
  text-align: center;
  font-size: 12px;
  color: #777;
}
.footer-bottom a { color: #999; }

@media (max-width: 1024px) {
  .biz-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .process-row { grid-template-columns: repeat(3, 1fr); }
  .nav { gap: 16px; }
  .hotline-text strong { font-size: 15px; }
}
@media (max-width: 768px) {
  .header-inner { flex-wrap: wrap; padding: 12px 0; min-height: auto; }
  .brand, .hotline { flex: 0 0 auto; width: auto; }
  .hotline { width: 100%; justify-content: flex-start; }
  .nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    overflow-y: visible;
    padding-bottom: 6px;
  }
  .nav-sub {
    left: 0;
    transform: translateY(4px);
  }
  .nav-item.has-sub:hover .nav-sub,
  .nav-item.has-sub:focus-within .nav-sub {
    transform: translateY(0);
  }
  .biz-grid, .news-grid, .team-grid, .adv-grid, .about-row, .contact-row, .news-layout, .footer-top {
    grid-template-columns: 1fr;
  }
  .process-row { grid-template-columns: 1fr 1fr; }
  .hero-inner { justify-content: center; }
  .hero-copy { text-align: center; }
  .article { padding: 24px 18px; }
}