:root {
  --bg: #f4f7fb;
  --paper: #ffffff;
  --navy: #0d2f5b;
  --blue: #1a56a8;
  --blue2: #2a6fd0;
  --ink: #1b2433;
  --muted: #5d6b7e;
  --line: #dce4ef;
  --gold: #b0893a;
  --serif: "Noto Serif SC", "Songti SC", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --shadow: 0 10px 30px rgba(13, 47, 91, .08);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background:
    linear-gradient(180deg, #eef3f9 0%, var(--bg) 280px);
  line-height: 1.75;
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.noise, .orb { display: none; }

.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
}
.nav.scrolled { border-bottom-color: var(--line); box-shadow: 0 8px 24px rgba(13,47,91,.06); }
.nav-inner { width: min(1180px, calc(100% - 28px)); margin: 0 auto; display: flex; align-items: center; gap: 18px; height: 76px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 40px; height: 40px; display: grid; place-items: center;
  background: var(--navy); color: #fff;
  font-family: var(--serif); font-weight: 700; letter-spacing: .1em;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 16px; letter-spacing: .08em; color: var(--navy); }
.brand-text small { color: var(--muted); font-size: 10px; letter-spacing: .22em; }
.nav-links { display: flex; align-items: stretch; gap: 4px; margin-left: auto; font-size: 14px; height: 76px; }
.nav-links > a, .drop > a {
  color: #3a4a5e;
  display: flex;
  align-items: center;
  height: 76px;
  padding: 0 12px;
}
.nav-links > a.on, .drop.on > a, .nav-links a:hover { color: var(--blue); }
.drop { position: relative; display: flex; align-items: stretch; }
.drop-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background: #fff;
  border: 1px solid var(--line);
  padding: 8px 0;
  box-shadow: var(--shadow);
  z-index: 60;
}
.drop:hover .drop-menu,
.drop.open .drop-menu,
.drop:focus-within .drop-menu { display: block; }
.drop-menu a { display: block; padding: 10px 16px; color: #3a4a5e; font-size: 13px; height: auto; }
.drop-menu a:hover { color: var(--blue); background: #f3f7fc; }
.nav-phone { display: flex; align-items: center; gap: 8px; color: var(--navy); font-size: 13px; letter-spacing: .04em; font-weight: 600; }
.nav-toggle { display: none; width: 42px; height: 42px; background: none; border: 1px solid var(--line); }
.nav-toggle span { display: block; height: 1px; background: var(--navy); margin: 6px 10px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 46px; padding: 0 22px; border: 1px solid var(--navy);
  letter-spacing: .12em; font-size: 13px; transition: .25s ease;
}
.btn.gold { background: var(--navy); color: #fff; border-color: var(--navy); }
.btn.gold:hover { background: var(--blue); border-color: var(--blue); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(26,86,168,.22); }
.btn.ghost { background: transparent; color: var(--navy); }
.btn.ghost:hover { background: #eef3f9; }

.eyebrow { color: var(--blue); letter-spacing: .32em; font-size: 12px; margin-bottom: 12px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 700; line-height: 1.25; color: var(--navy); }
h1 { font-size: clamp(34px, 5vw, 56px); }
h2 { font-size: 32px; margin-bottom: 16px; }
h3 { font-size: 20px; margin-bottom: 8px; }
.lead { font-size: 18px; color: var(--muted); max-width: 40ch; }
.muted { color: var(--muted); }
.gold-text { color: var(--blue); }

.hero { position: relative; z-index: 1; padding: 64px 0 80px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.hero-actions { display: flex; gap: 14px; margin: 28px 0 36px; }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.hero-stats b, .stat-board b { display: block; font-family: var(--serif); font-size: 28px; color: var(--navy); }
.hero-stats span, .stat-board span { color: var(--muted); font-size: 12px; }
.hero-panel {
  position: relative; min-height: 420px; border: 1px solid var(--line);
  background: linear-gradient(165deg, #0d2f5b 0%, #1a56a8 58%, #3d8ad4 100%);
  overflow: hidden; box-shadow: var(--shadow);
}
.radar { position: absolute; inset: 40px; border-radius: 50%; border: 1px solid rgba(255,255,255,.28); }
.radar span { position: absolute; inset: 18%; border: 1px solid rgba(255,255,255,.18); border-radius: 50%; }
.radar span:nth-child(2) { inset: 34%; }
.radar span:nth-child(3) { inset: 50%; }
.radar i {
  position: absolute; left: 50%; top: 50%; width: 50%; height: 1px;
  background: linear-gradient(90deg, #fff, transparent);
  transform-origin: left center; animation: sweep 4.5s linear infinite;
}
.hero-chips { position: absolute; left: 24px; right: 24px; bottom: 24px; display: flex; flex-wrap: wrap; gap: 8px; }
.hero-chips li { list-style: none; font-size: 12px; letter-spacing: .08em; padding: 6px 10px; border: 1px solid rgba(255,255,255,.28); color: #fff; }

.section { position: relative; z-index: 1; padding: 88px 0; }
.section.dim { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { text-align: center; margin-bottom: 42px; }
.section-head p { color: var(--muted); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.stat-board { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.stat-board article, .card, .glass, .price-card, .sol-card, .case-mini, .quote-card {
  border: 1px solid var(--line); background: var(--paper); padding: 24px; box-shadow: 0 6px 20px rgba(13,47,91,.04);
}
.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.card-grid.four { grid-template-columns: repeat(4, 1fr); }
.card { display: block; transition: .25s ease; min-height: 100%; }
.card:hover, .sol-card:hover, .price-card:hover { transform: translateY(-6px); border-color: #b7cbe4; box-shadow: var(--shadow); }
.card-ico {
  width: 46px; height: 46px; display: grid; place-items: center;
  border: 1px solid var(--line); color: var(--blue); background: #f3f7fc; margin-bottom: 16px;
}
.card-ico.lg { width: 64px; height: 64px; }
.ico { width: 22px; height: 22px; }
.more { display: inline-block; margin-top: 14px; color: var(--blue); font-size: 13px; letter-spacing: .12em; }
.sol-grid, .case-row, .three, .price-grid { display: grid; gap: 18px; }
.sol-grid, .three { grid-template-columns: repeat(3, 1fr); }
.center-cta { text-align: center; margin-top: 32px; }

.page-hero {
  position: relative; z-index: 1; padding: 56px 0 40px;
  background: linear-gradient(180deg, #e8eef6, #f4f7fb);
  border-bottom: 1px solid var(--line);
}
.page-hero .muted a { color: var(--blue); }
.pill-nav { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 32px; }
.pill-nav a { padding: 8px 14px; border: 1px solid var(--line); font-size: 13px; color: var(--muted); background: #fff; }
.pill-nav a.on, .pill-nav a:hover { color: var(--navy); border-color: var(--navy); }
.check-list { list-style: none; display: grid; gap: 10px; }
.check-list li { display: flex; gap: 10px; align-items: flex-start; color: #334155; }
.check-list .ico { color: var(--blue); flex: 0 0 auto; margin-top: 4px; }
.price-grid { grid-template-columns: repeat(3, 1fr); }
.price-card { position: relative; text-align: center; }
.price-card.popular { border-color: var(--navy); box-shadow: var(--shadow); }
.price-card em { position: absolute; top: 14px; right: 14px; font-style: none; font-size: 11px; color: #fff; background: var(--navy); padding: 2px 8px; }
.price { font-family: var(--serif); font-size: 36px; color: var(--navy); margin: 10px 0 18px; }
.price small { font-size: 14px; color: var(--muted); }
.price-card ul { list-style: none; color: var(--muted); margin-bottom: 22px; }
.domain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.domain-grid article { border: 1px solid var(--line); padding: 22px; display: flex; justify-content: space-between; background: #fff; }
.domain-grid b { font-family: var(--serif); font-size: 28px; color: var(--navy); }

.timeline { display: grid; gap: 0; }
.timeline article { display: grid; grid-template-columns: 90px 1fr; gap: 20px; padding: 22px 0; border-left: 1px solid var(--line); padding-left: 24px; position: relative; }
.timeline article:before { content: ""; position: absolute; left: -5px; top: 30px; width: 9px; height: 9px; background: var(--blue); border-radius: 50%; }
.timeline b { color: var(--navy); font-family: var(--serif); font-size: 24px; }
.honor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.honor-grid article { border: 1px solid var(--line); min-height: 110px; display: grid; place-items: center; font-family: var(--serif); letter-spacing: .08em; background: #fff; color: var(--navy); }
.avatar {
  width: 64px; height: 64px; display: grid; place-items: center; margin-bottom: 12px;
  background: #eef3f9; color: var(--navy); font-family: var(--serif); font-size: 24px;
}
.team-card { text-align: center; }
.team-card .avatar { margin: 0 auto 12px; }
.sol-list { display: grid; gap: 28px; }
.sol-block { display: grid; grid-template-columns: .7fr 1.3fr; gap: 28px; align-items: center; border: 1px solid var(--line); padding: 28px; background: #fff; }
.sol-block.reverse { grid-template-columns: 1.3fr .7fr; }
.sol-block.reverse .sol-visual { order: 2; }
.sol-visual { min-height: 180px; display: grid; place-items: center; border: 1px solid var(--line); color: var(--blue); background: #f3f7fc; }
.sol-visual .ico { width: 64px; height: 64px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.steps article { background: #fff; border: 1px solid var(--line); padding: 22px; }
.steps b { font-family: var(--serif); color: var(--blue); font-size: 28px; }
.tag, .tags em { display: inline-block; font-size: 12px; color: var(--blue); border: 1px solid var(--line); padding: 2px 8px; margin: 0 6px 8px 0; font-style: normal; background: #f3f7fc; }
.quote-card p { color: #334155; margin-bottom: 18px; }
.who { display: flex; gap: 12px; align-items: center; }
.who .avatar { width: 42px; height: 42px; margin: 0; font-size: 16px; }
.who span { display: block; color: var(--muted); font-size: 13px; }
.faq details { border: 1px solid var(--line); padding: 16px 20px; background: #fff; margin-bottom: 10px; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--navy); }
.faq p { color: var(--muted); margin-top: 10px; }
.doc-links { list-style: none; }
.doc-links a { color: var(--muted); display: block; padding: 6px 0; }
.doc-links a:hover { color: var(--blue); }
.news-list { display: grid; gap: 14px; }
.news-item { display: grid; grid-template-columns: 140px 1fr; gap: 24px; padding: 22px; border: 1px solid var(--line); background: #fff; }
.news-item time { color: var(--blue); letter-spacing: .12em; }
.article { max-width: 760px; }
.article p { color: #334155; margin-bottom: 24px; }

.contact-list { list-style: none; display: grid; gap: 12px; margin-top: 18px; }
.contact-list li { display: flex; gap: 10px; color: #334155; }
.glass { background: #fff; }
.qq-consult { display: grid; gap: 12px; }
.qq-consult .btn { justify-self: start; }
a.card { color: inherit; text-decoration: none; }
.panel-form { display: grid; gap: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.panel-form label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }
.panel-form input, .panel-form select, .panel-form textarea {
  width: 100%; background: #fff; border: 1px solid var(--line); padding: 12px 12px; outline: none;
}
.panel-form input:focus, .panel-form select:focus, .panel-form textarea:focus { border-color: var(--blue); }
.form-note { min-height: 1.4em; font-size: 13px; }
.form-note.ok { color: #1a7f4a; }
.form-note.err { color: #c0392b; }
.map-wrap iframe { width: 100%; height: 360px; border: 1px solid var(--line); background: #eef3f9; }

.foot { position: relative; z-index: 1; background: var(--navy); color: #d7e2ee; padding-top: 48px; }
.foot .brand-text strong, .foot h2, .foot h3 { color: #fff; }
.foot-grid { display: grid; grid-template-columns: 1.4fr .8fr .9fr 1fr; gap: 24px; }
.foot h4 { font-size: 14px; letter-spacing: .16em; margin-bottom: 14px; color: #fff; }
.foot ul { list-style: none; }
.foot a { color: #c5d3e4; font-size: 14px; }
.foot a:hover { color: #fff; }
.foot-brand { margin-bottom: 14px; }
.foot-brand .brand-mark { background: #fff; color: var(--navy); }
.foot-bottom { margin-top: 36px; padding: 18px 0; border-top: 1px solid rgba(255,255,255,.12); color: #9fb0c8; font-size: 13px; }
.foot .btn.gold { background: #fff; color: var(--navy); border-color: #fff; }
.foot .btn.gold:hover { background: #e8eef6; }
.to-top {
  position: fixed; right: 22px; bottom: 96px; width: 42px; height: 42px; z-index: 40;
  border: 1px solid var(--navy); background: #fff; color: var(--navy); display: none;
}
.to-top.show { display: grid; place-items: center; }
.float-bar { position: fixed; right: 18px; top: 42%; z-index: 40; display: grid; gap: 8px; }
.float-bar a {
  width: 46px; overflow: hidden; white-space: nowrap; display: flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--line); color: var(--navy); padding: 10px 12px;
  transition: .2s ease; box-shadow: var(--shadow);
}
.float-bar a:hover { width: 128px; }
.reveal { opacity: 0; transform: translateY(18px); animation: up .7s ease forwards; }
.reveal:nth-child(2) { animation-delay: .08s; }
.reveal:nth-child(3) { animation-delay: .16s; }

@keyframes sweep { to { transform: rotate(360deg); } }
@keyframes up { to { opacity: 1; transform: none; } }

@media (max-width: 980px) {
  .nav-links, .nav-phone { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute; top: 76px; left: 0; right: 0;
    background: #fff; padding: 10px 18px 18px; border-bottom: 1px solid var(--line); align-items: stretch;
    box-shadow: var(--shadow); height: auto;
  }
  .nav-links.open > a, .nav-links.open .drop > a { height: 44px; }
  .nav-links.open .drop-menu {
    display: block; position: static; box-shadow: none; border: 0; padding: 0 0 8px 12px;
  }
  .nav-toggle { display: block; margin-left: auto; }
  .hero-grid, .split, .sol-block, .sol-block.reverse, .news-item { grid-template-columns: 1fr; }
  .card-grid, .card-grid.four, .sol-grid, .three, .price-grid, .honor-grid, .steps, .foot-grid, .hero-stats, .form-row, .domain-grid {
    grid-template-columns: 1fr 1fr;
  }
  .sol-block.reverse .sol-visual { order: 0; }
  .float-bar { display: none; }
}
@media (max-width: 640px) {
  .card-grid, .card-grid.four, .sol-grid, .three, .price-grid, .honor-grid, .steps, .foot-grid, .hero-stats, .form-row, .domain-grid, .stat-board {
    grid-template-columns: 1fr;
  }
  .hero { padding-top: 36px; }
  .timeline article { grid-template-columns: 1fr; }
}