:root {
  --brand: #1a6cb5;
  --brand-dark: #0f4c85;
  --brand-darker: #0a3054;
  --brand-light: #e9f3fc;
  --accent: #2bb3e6;
  --text: #1f2937;
  --text-secondary: #5b6b7c;
  --border: #e3e9f0;
  --bg-alt: #f6f9fc;
  --radius: 12px;
  --shadow: 0 6px 24px rgba(15, 76, 133, 0.08);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: #fff;
  line-height: 1.7;
  font-size: 15px;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
  letter-spacing: 0.5px;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(26, 108, 181, 0.35); }
.btn-ghost { background: transparent; color: var(--brand); border: 1.5px solid var(--brand); }
.btn-ghost:hover { background: var(--brand); color: #fff; }

/* ===== Header ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled { box-shadow: 0 2px 16px rgba(15, 76, 133, 0.12); }
.header-inner { display: flex; align-items: center; height: 72px; gap: 32px; }

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand img { width: 46px; height: 46px; object-fit: contain; }
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text strong { font-size: 18px; color: var(--brand-darker); letter-spacing: 1px; }
.brand-text em { font-style: normal; font-size: 11px; color: var(--text-secondary); }

.main-nav { display: flex; gap: 36px; margin-left: auto; }
.main-nav a { font-size: 15px; color: var(--text); position: relative; padding: 4px 0; transition: color 0.2s; }
.main-nav a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px;
  background: var(--brand); transition: width 0.25s ease;
}
.main-nav a:hover { color: var(--brand); }
.main-nav a:hover::after { width: 100%; }

/* ===== 导航下拉：业务领域 ===== */
.nav-item { position: relative; display: inline-flex; align-items: center; }
.nav-item > a { display: inline-flex; align-items: center; gap: 5px; }
.nav-caret { flex-shrink: 0; transition: transform 0.25s ease; }
.nav-dropdown {
  position: absolute; top: 100%; left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 236px; background: #fff; border: 1px solid var(--border);
  border-radius: 10px; box-shadow: 0 14px 36px rgba(15, 76, 133, 0.16);
  padding: 8px; opacity: 0; visibility: hidden;
  transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
  z-index: 110;
}
.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(4px);
}
.nav-item:hover .nav-caret { transform: rotate(180deg); }
.nav-dropdown a {
  display: block; padding: 10px 14px; font-size: 14px; color: var(--text);
  border-radius: 6px; white-space: nowrap; transition: background 0.18s ease, color 0.18s ease;
}
.nav-dropdown a::after { display: none; }
.nav-dropdown a:hover { background: var(--brand-light); color: var(--brand); }

/* ===== 语言切换器 ===== */
.lang-switch { position: relative; flex-shrink: 0; margin-left: 6px; }
.lang-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 3px;
  width: 38px; height: 38px; padding: 0;
  background: #fff; border: 1px solid var(--border); border-radius: 50%;
  color: var(--text-secondary); cursor: pointer;
  transition: border-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}
.lang-btn:hover {
  border-color: var(--brand); color: var(--brand);
  box-shadow: 0 4px 14px rgba(26, 108, 181, 0.18);
}
.lang-globe { transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1); }
.lang-btn:hover .lang-globe { transform: rotate(180deg); }
.lang-caret { transition: transform 0.25s ease; }
.lang-switch.open .lang-btn { border-color: var(--brand); color: var(--brand); }
.lang-switch.open .lang-caret { transform: rotate(180deg); }
.lang-menu {
  position: absolute; top: calc(100% + 10px); right: 0; min-width: 152px;
  background: #fff; border: 1px solid var(--border); border-radius: 10px;
  box-shadow: 0 14px 32px rgba(15, 76, 133, 0.16); padding: 6px;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
  z-index: 120;
}
.lang-menu::before {
  content: ""; position: absolute; top: -6px; right: 14px;
  width: 11px; height: 11px; background: #fff;
  border-left: 1px solid var(--border); border-top: 1px solid var(--border);
  transform: rotate(45deg); border-top-left-radius: 2px;
}
.lang-switch.open .lang-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-menu a {
  display: flex; align-items: center; gap: 9px;
  padding: 9px 12px; font-size: 13.5px; color: var(--text); border-radius: 7px;
  transition: background 0.18s ease, color 0.18s ease;
}
.lang-menu a:hover { background: var(--brand-light); color: var(--brand); }
.lang-code {
  margin-left: auto; font-size: 10px; font-weight: 600; letter-spacing: 0.6px;
  color: #98a4b0; background: #f2f5f8; border-radius: 4px; padding: 2px 6px;
  transition: background 0.18s ease, color 0.18s ease;
}
.lang-menu a:hover .lang-code { background: #fff; color: var(--brand); }
.lang-menu a.active { color: var(--brand); font-weight: 500; }
.lang-menu a.active .lang-code { background: var(--brand); color: #fff; }
.lang-menu a.active::after { content: "✓"; font-size: 12px; font-weight: 700; }

.header-phone {
  display: flex; align-items: center; gap: 6px;
  color: var(--brand); font-weight: 500; font-size: 15px; flex-shrink: 0;
}
.header-phone:hover { color: var(--brand-dark); }

.nav-toggle { display: none; background: none; border: none; width: 28px; height: 24px; position: relative; cursor: pointer; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 24px; height: 2px; background: var(--brand-darker); position: absolute; left: 2px;
}
.nav-toggle span { top: 11px; }
.nav-toggle span::before { content: ""; top: -7px; }
.nav-toggle span::after { content: ""; top: 7px; }

/* ===== Hero ===== */
.hero { position: relative; height: 640px; margin-top: 72px; overflow: hidden; background: var(--brand-darker); }
.hero-slides { position: absolute; inset: 0; }
.hero-slide {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  opacity: 0; transition: opacity 1s ease;
}
.hero-slide.active { opacity: 1; }
.hero-slide.active .hero-content { animation: heroIn 0.8s ease both; }
@keyframes heroIn {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(10, 48, 84, 0.82) 0%, rgba(10, 48, 84, 0.45) 55%, rgba(10, 48, 84, 0.15) 100%);
}
.hero-content { position: relative; z-index: 2; height: 100%; display: flex; flex-direction: column; justify-content: center; color: #fff; }
.hero-eyebrow {
  font-size: 14px; letter-spacing: 4px; text-transform: uppercase;
  color: var(--accent); margin-bottom: 16px; font-weight: 500;
}
.hero-content h1, .hero-content .hero-title { font-size: 46px; line-height: 1.3; font-weight: 600; margin-bottom: 18px; letter-spacing: 2px; }
.hero-sub { font-size: 17px; opacity: 0.92; margin-bottom: 36px; max-width: 560px; }

.hero-dots {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 10px; z-index: 3;
}
.dot {
  width: 10px; height: 10px; border-radius: 50%; border: 1.5px solid #fff;
  background: transparent; cursor: pointer; padding: 0; transition: all 0.3s;
}
.dot.active { background: #fff; width: 28px; border-radius: 5px; }

/* ===== Sections ===== */
.section { padding: 84px 0; }
.section-alt { background: var(--bg-alt); }

.section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-tag {
  display: inline-block; font-size: 13px; letter-spacing: 3px; color: var(--brand);
  font-weight: 500; margin-bottom: 12px; padding: 4px 14px;
  background: var(--brand-light); border-radius: 4px;
}
.section-title { font-size: 30px; font-weight: 600; color: var(--brand-darker); margin-bottom: 16px; letter-spacing: 1px; }
.section-desc { color: var(--text-secondary); }

/* ===== Services ===== */
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.service-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 36px 28px; transition: all 0.3s ease; position: relative; overflow: hidden;
}
.service-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  transform: scaleX( 0); transform-origin: left; transition: transform 0.3s ease;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  width: 64px; height: 64px; border-radius: 16px; background: var(--brand-light);
  color: var(--brand); display: flex; align-items: center; justify-content: center; margin-bottom: 20px;
}
.service-card h3 { font-size: 18px; color: var(--brand-darker); margin-bottom: 12px; font-weight: 600; }
.service-card > p { font-size: 14px; color: var(--text-secondary); margin-bottom: 16px; }
.service-list { border-top: 1px dashed var(--border); padding-top: 14px; }
.service-list li { font-size: 13px; color: var(--text-secondary); padding: 4px 0 4px 18px; position: relative; }
.service-list li::before {
  content: ""; position: absolute; left: 0; top: 13px; width: 6px; height: 6px;
  border-radius: 50%; background: var(--accent);
}

/* ===== Stats ===== */
.stats { background: linear-gradient(120deg, var(--brand-dark), var(--brand)); padding: 56px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; color: #fff; }
.stat-num { display: block; font-size: 44px; font-weight: 600; letter-spacing: 1px; line-height: 1.2; }
.stat-label { font-size: 14px; opacity: 0.85; }

/* ===== About ===== */
.about-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 64px; align-items: center; }
.about-text .section-title { text-align: left; }
.about-text .section-tag { margin-bottom: 8px; }
.about-text > p { color: var(--text-secondary); margin-bottom: 18px; }
.about-text strong { color: var(--brand); }
.about-highlights { display: flex; flex-direction: column; gap: 10px; margin-top: 24px; }
.highlight-item {
  background: #fff; border: 1px solid var(--border); border-left: 3px solid var(--brand);
  padding: 12px 18px; border-radius: 6px; font-size: 14px; color: var(--text);
}
.about-visual { position: relative; }
.about-visual img { border-radius: var(--radius); height: 420px; width: 100%; object-fit: cover; box-shadow: var(--shadow); }
.about-visual-card {
  position: absolute; right: -18px; bottom: -18px; background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px 26px; display: flex; flex-direction: column;
  border-left: 4px solid var(--brand);
}
.about-visual-card strong { font-size: 20px; color: var(--brand-darker); letter-spacing: 1px; }
.about-visual-card span { font-size: 12px; color: var(--text-secondary); }

/* ===== Advantages ===== */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.adv-card {
  background: #fff; border-radius: var(--radius); padding: 32px 26px;
  border: 1px solid var(--border); transition: all 0.3s ease;
}
.adv-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.adv-num {
  display: block; font-size: 34px; font-weight: 600; color: var(--brand);
  opacity: 0.35; margin-bottom: 12px; font-family: Georgia, serif;
}
.adv-card h3 { font-size: 17px; color: var(--brand-darker); margin-bottom: 10px; font-weight: 600; }
.adv-card p { font-size: 14px; color: var(--text-secondary); }

/* ===== News ===== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: all 0.3s ease; }
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.news-img { height: 180px; background-size: cover; background-position: center; }
.news-body { padding: 22px 24px 26px; }
.news-date {
  display: inline-block; font-size: 12px; color: var(--brand); background: var(--brand-light);
  padding: 2px 10px; border-radius: 4px; margin-bottom: 12px;
}
.news-card h3 { font-size: 16px; color: var(--brand-darker); line-height: 1.5; margin-bottom: 10px; font-weight: 600; }
.news-card p { font-size: 13px; color: var(--text-secondary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-more { text-align: center; margin-top: 44px; }

/* ===== Contact ===== */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: start; }
.contact-info { display: flex; flex-direction: column; gap: 20px; }
.info-item { background: var(--bg-alt); border-radius: var(--radius); padding: 22px 26px; border-left: 3px solid var(--brand); }
.info-item h3 { font-size: 15px; color: var(--brand-darker); margin-bottom: 6px; }
.info-item p { color: var(--text-secondary); font-size: 14px; }
.info-item a { color: var(--brand); font-weight: 500; }

.contact-form {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px; display: flex; flex-direction: column; gap: 16px; box-shadow: var(--shadow);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; padding: 12px 16px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 14px; font-family: var(--font); color: var(--text); background: #fff;
  transition: border-color 0.2s; outline: none;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--brand); }
.contact-form textarea { resize: vertical; }
.form-note { font-size: 13px; color: var(--brand); min-height: 20px; }

/* ===== Footer ===== */
.site-footer { background: var(--brand-darker); color: rgba(255, 255, 255, 0.75); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 48px; padding: 64px 24px 48px; }
.footer-brand img { width: 54px; height: 54px; margin-bottom: 16px; }
.footer-brand p { font-size: 13px; line-height: 1.8; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 18px; font-weight: 500; }
.footer-col a, .footer-col p { display: block; font-size: 13px; padding: 5px 0; }
.footer-col a { transition: color 0.2s; }
.footer-col a:hover { color: #fff; }
.footer-col a { color: rgba(255, 255, 255, 0.75); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.12); padding: 18px 0; font-size: 12px; }
.footer-bottom .container { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-icp { color: rgba(255, 255, 255, 0.75); transition: color 0.2s; }
.footer-icp:hover { color: #fff; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .service-grid, .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-visual { max-width: 560px; }
  .news-grid { grid-template-columns: 1fr; }
  .news-img { height: 220px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}

@media (max-width: 768px) {
  .main-nav, .header-phone { display: none; }
  .nav-toggle { display: block; margin-left: auto; }
  .main-nav.open {
    display: flex; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0;
    background: #fff; padding: 20px 24px 28px; gap: 20px; box-shadow: 0 12px 24px rgba(15, 76, 133, 0.12);
  }
  .nav-item { display: block; }
  .nav-dropdown {
    position: static; transform: none; opacity: 1; visibility: visible;
    box-shadow: none; border: none; border-left: 2px solid var(--brand-light);
    border-radius: 0; padding: 2px 0 2px 14px; margin-top: 10px; min-width: 0;
  }
  .nav-dropdown a { white-space: normal; padding: 8px 10px; color: var(--text-secondary); }
  .header-inner { gap: 16px; }
  .lang-btn { width: 34px; height: 34px; }
  .hero { height: 520px; }
  .hero-content h1, .hero-content .hero-title { font-size: 30px; }
  .hero-sub { font-size: 15px; }
  .section { padding: 60px 0; }
  .section-title { font-size: 24px; }
  .service-grid, .adv-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .about-visual-card { right: 12px; bottom: -12px; padding: 12px 18px; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* ===== Header CTA ===== */
.header-cta {
  flex-shrink: 0;
  background: var(--brand);
  color: #fff;
  font-size: 14px;
  padding: 9px 24px;
  border-radius: 6px;
  letter-spacing: 1px;
  transition: all 0.25s ease;
}
.header-cta:hover { background: var(--brand-dark); box-shadow: 0 6px 16px rgba(26, 108, 181, 0.35); }

/* ===== Process ===== */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-step {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 26px 30px;
  transition: all 0.3s ease;
}
.process-step:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.process-step::after {
  content: "";
  position: absolute;
  top: 52px;
  right: -15px;
  width: 0;
  height: 0;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 9px solid var(--brand);
  opacity: 0.4;
}
.process-step:last-child::after { display: none; }
.process-num {
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  color: #fff;
  background: linear-gradient(120deg, var(--brand), var(--accent));
  border-radius: 20px;
  padding: 3px 14px;
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.process-step h3 { font-size: 17px; color: var(--brand-darker); margin-bottom: 10px; font-weight: 600; }
.process-step p { font-size: 14px; color: var(--text-secondary); }

/* ===== Contact roster (专属联系人) ===== */
.section-roster { background: linear-gradient(180deg, var(--bg-alt) 0%, #fff 100%); }
.roster-layout { display: grid; grid-template-columns: 330px 1fr; gap: 28px; align-items: stretch; }
.roster-main {
  background: linear-gradient(150deg, var(--brand-darker) 0%, var(--brand) 100%);
  color: #fff;
  border-radius: var(--radius);
  padding: 40px 34px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.roster-main::before {
  content: "";
  position: absolute;
  right: -70px;
  top: -70px;
  width: 210px;
  height: 210px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}
.roster-main::after {
  content: "";
  position: absolute;
  right: 24px;
  bottom: -46px;
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
}
.roster-main-eyebrow {
  font-size: 12px;
  letter-spacing: 2px;
  opacity: 0.72;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}
.roster-main h3 { font-size: 20px; font-weight: 600; margin-bottom: 20px; position: relative; z-index: 1; letter-spacing: 1px; }
.roster-main-tel {
  display: inline-block;
  font-size: 25px;
  font-weight: 700;
  letter-spacing: 1px;
  color: #fff;
  position: relative;
  z-index: 1;
  transition: opacity 0.2s;
}
.roster-main-tel:hover { opacity: 0.82; }
.roster-main-sub { font-size: 13px; opacity: 0.78; margin: 8px 0 30px; position: relative; z-index: 1; }
.roster-main-list { display: flex; flex-direction: column; gap: 15px; position: relative; z-index: 1; margin-top: auto; }
.roster-main-list li { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; line-height: 1.65; }
.roster-main-list svg { flex-shrink: 0; margin-top: 5px; opacity: 0.85; }

.roster-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.roster-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.roster-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.roster-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(26, 108, 181, 0.3); }
.roster-card.visible:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(26, 108, 181, 0.3); }
.roster-card:hover::before { transform: scaleX(1); }
.roster-card-top { display: flex; align-items: center; gap: 14px; }
.roster-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  color: #fff;
  font-size: 19px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.roster-card-head { display: flex; flex-direction: column; align-items: flex-start; gap: 5px; }
.roster-card-head strong { font-size: 18px; color: var(--brand-darker); letter-spacing: 1px; }
.roster-role {
  font-size: 12px;
  color: var(--brand);
  background: var(--brand-light);
  padding: 2px 12px;
  border-radius: 4px;
  letter-spacing: 1px;
}
.roster-line { display: flex; align-items: center; gap: 10px; font-size: 15px; color: var(--text); font-weight: 500; letter-spacing: 0.5px; transition: color 0.2s; }
.roster-line svg { color: var(--brand); flex-shrink: 0; }
.roster-line:hover { color: var(--brand); }
.roster-line.roster-mail { font-size: 13px; color: var(--text-secondary); font-weight: 400; word-break: break-all; }
.roster-line.roster-mail:hover { color: var(--brand); }
.roster-desc { font-size: 13px; color: var(--text-secondary); padding-top: 12px; border-top: 1px dashed var(--border); }

/* ===== Back to top ===== */
.back-top {
  position: fixed;
  right: 28px;
  bottom: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: var(--brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.3s ease;
  box-shadow: 0 6px 18px rgba(26, 108, 181, 0.4);
  z-index: 90;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--brand-dark); }

/* ===== Reveal on scroll ===== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== Extra responsive ===== */
@media (max-width: 1024px) {
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .process-step::after { display: none; }
  .roster-layout { grid-template-columns: 1fr; }
  .roster-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .process-grid { grid-template-columns: 1fr; }
  .roster-grid { grid-template-columns: 1fr; }
  .roster-main { padding: 32px 26px; }
  .roster-main-tel { font-size: 22px; }
  .header-cta { padding: 7px 16px; font-size: 13px; }
  .back-top { right: 16px; bottom: 20px; }
}

/* ===== Page hero (子页面头图) ===== */
.page-hero {
  position: relative;
  margin-top: 72px;
  padding: 108px 0 88px;
  background: linear-gradient(135deg, var(--brand-darker) 0%, var(--brand) 100%);
  color: #fff;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  right: -90px;
  top: -90px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
}
.page-hero::after {
  content: "";
  position: absolute;
  right: 130px;
  bottom: -70px;
  width: 170px;
  height: 170px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
}
.page-hero-eyebrow {
  position: relative;
  z-index: 1;
  font-size: 13px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
  font-weight: 500;
}
.page-hero h1 { position: relative; z-index: 1; font-size: 38px; font-weight: 600; letter-spacing: 2px; margin-bottom: 14px; }
.page-hero-sub { position: relative; z-index: 1; font-size: 16px; opacity: 0.88; }
.breadcrumb { position: relative; z-index: 1; margin-top: 28px; font-size: 13px; display: flex; gap: 8px; opacity: 0.72; }
.breadcrumb a { border-bottom: 1px solid rgba(255, 255, 255, 0.45); padding-bottom: 1px; }
.breadcrumb a:hover { opacity: 1; color: #fff; }

/* ===== Active nav ===== */
.main-nav a.active { color: var(--brand); font-weight: 500; }
.main-nav a.active::after { width: 100%; }

/* ===== Roster main slogan ===== */
.roster-main-slogan {
  position: relative;
  z-index: 1;
  margin-top: auto;
  padding-top: 26px;
  font-size: 13px;
  letter-spacing: 3px;
  opacity: 0.72;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

/* ===== CTA band ===== */
.cta-band {
  background: linear-gradient(120deg, var(--brand) 0%, var(--accent) 100%);
  color: #fff;
  text-align: center;
  padding: 72px 0;
}
.cta-band h2 { font-size: 26px; font-weight: 600; letter-spacing: 1px; margin-bottom: 12px; }
.cta-band p { font-size: 15px; opacity: 0.92; margin-bottom: 30px; }
.cta-band .btn-primary { background: #fff; color: var(--brand); }
.cta-band .btn-primary:hover { background: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(10, 48, 84, 0.25); }

/* ===== Friend links ===== */
.friend-links { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 22px 0; }
.friend-links-inner { display: flex; align-items: center; gap: 14px 30px; flex-wrap: wrap; }
.friend-links-label { font-size: 13px; color: #fff; font-weight: 500; letter-spacing: 2px; flex-shrink: 0; }
.friend-links-list { display: flex; gap: 10px 30px; flex-wrap: wrap; }
.friend-links-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.68);
  transition: color 0.2s;
}
.friend-links-list a::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.friend-links-list a:hover { color: #fff; }

/* ===== Service card entry link ===== */
.service-more {
  margin-top: auto;
  padding-top: 16px;
  font-size: 13px;
  color: var(--brand);
  font-weight: 500;
  letter-spacing: 1px;
  transition: color 0.2s;
}
.service-card:hover .service-more { color: var(--brand-dark); }

/* ===== Service detail ===== */
.detail-layout { display: grid; grid-template-columns: 1fr 300px; gap: 40px; align-items: start; }
.detail-article {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.detail-cover { height: 320px; overflow: hidden; background: var(--bg-alt); }
.detail-cover img { width: 100%; height: 100%; object-fit: cover; }
.detail-body { padding: 36px 40px 44px; }
.rich-text { color: var(--text); line-height: 1.9; font-size: 15px; }
.rich-text p { margin-bottom: 16px; }
.rich-text h2, .rich-text h3 { color: var(--brand-darker); margin: 24px 0 12px; font-weight: 600; }
.rich-text ul, .rich-text ol { margin: 0 0 16px 0; padding-left: 22px; }
.rich-text li { padding: 4px 0; list-style: disc; }
.rich-text ol li { list-style: decimal; }
.rich-text img { max-width: 100%; border-radius: 8px; margin: 12px 0; }
.rich-text a { color: var(--brand); border-bottom: 1px solid var(--brand); }
.rich-text blockquote { border-left: 3px solid var(--brand); background: var(--brand-light); padding: 14px 18px; border-radius: 0 6px 6px 0; margin: 16px 0; color: var(--text-secondary); }
.detail-side { position: sticky; top: 96px; }
.detail-side-card {
  background: linear-gradient(160deg, var(--brand-darker) 0%, var(--brand) 100%);
  color: #fff;
  border-radius: var(--radius);
  padding: 30px 28px;
  text-align: center;
}
.detail-side-card h3 { font-size: 18px; margin-bottom: 10px; letter-spacing: 1px; }
.detail-side-card p { font-size: 13px; opacity: 0.82; margin-bottom: 22px; line-height: 1.7; }
.detail-side-card .btn-primary { background: #fff; color: var(--brand); width: 100%; }
.detail-side-card .btn-primary:hover { background: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(10, 48, 84, 0.25); }
.detail-side-back { display: inline-block; margin-top: 16px; font-size: 13px; opacity: 0.75; }
.detail-side-back:hover { opacity: 1; }

@media (max-width: 960px) {
  .detail-layout { grid-template-columns: 1fr; }
  .detail-side { position: static; }
  .detail-body { padding: 26px 22px 32px; }
  .detail-cover { height: 220px; }
}

@media (max-width: 768px) {
  .page-hero { padding: 88px 0 64px; }
  .page-hero h1 { font-size: 28px; }
  .page-hero-sub { font-size: 14px; }
  .cta-band { padding: 56px 0; }
  .cta-band h2 { font-size: 22px; }
  .friend-links-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
}