:root {
  --navy: #071a36;
  --navy-soft: #0c2852;
  --blue: #2468f2;
  --blue-bright: #3c8dff;
  --red: #ef3f4a;
  --cyan: #31c4f3;
  --green: #21b77a;
  --ink: #101b30;
  --muted: #66758d;
  --canvas: #f3f7fd;
  --paper: #ffffff;
  --line: #dce5f2;
  --shadow: 0 24px 70px rgba(18, 53, 102, .14);
  --wrap: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "HarmonyOS Sans SC", "MiSans", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background: radial-gradient(circle at 12% 20%, rgba(36, 104, 242, .08), transparent 25%), radial-gradient(circle at 88% 78%, rgba(239, 63, 74, .06), transparent 23%);
}
a { color: inherit; text-decoration: none; }
.wrap { width: min(calc(100% - 48px), var(--wrap)); margin-inline: auto; }
.skip { position: fixed; left: 16px; top: -60px; z-index: 100; padding: 10px 16px; color: #fff; background: var(--red); }
.skip:focus { top: 12px; }

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, .11);
  background: rgba(7, 26, 54, .88);
  backdrop-filter: blur(18px);
}
.header-inner { height: 80px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-seal {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: #fff;
  background: linear-gradient(145deg, var(--blue), var(--red));
  border-radius: 13px;
  font-size: 23px;
  font-weight: 900;
  box-shadow: 0 9px 24px rgba(36, 104, 242, .28), inset 0 0 0 1px rgba(255, 255, 255, .22);
}
.brand > span:last-child { display: flex; flex-direction: column; }
.brand strong { font-size: 17px; line-height: 1.25; }
.brand small { color: #8ea8cd; font-size: 11px; letter-spacing: .04em; }
.nav { display: flex; align-items: center; gap: 5px; }
.nav a { padding: 9px 13px; color: #bbcae0; border-radius: 9px; font-size: 13px; font-weight: 700; transition: .2s; }
.nav a:hover { color: #fff; background: rgba(255, 255, 255, .08); }
.nav-contact { margin-left: 7px; color: #fff !important; background: var(--red) !important; box-shadow: 0 8px 20px rgba(239, 63, 74, .2); }
.menu { display: none; }

.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(128deg, #06162e 0%, #092754 56%, #081d3b 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .42;
  background-image: linear-gradient(rgba(97, 157, 255, .12) 1px, transparent 1px), linear-gradient(90deg, rgba(97, 157, 255, .12) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(90deg, transparent 0, #000 34%, #000 100%);
}
.hero::after {
  content: "";
  position: absolute;
  width: 620px;
  height: 620px;
  right: -210px;
  top: -280px;
  border-radius: 50%;
  border: 1px solid rgba(60, 141, 255, .24);
  box-shadow: 0 0 0 85px rgba(60, 141, 255, .035), 0 0 0 170px rgba(239, 63, 74, .025);
}
.hero-lines { position: absolute; inset: 0; pointer-events: none; }
.hero-lines::before {
  content: "";
  position: absolute;
  width: 520px;
  height: 2px;
  left: -90px;
  bottom: 96px;
  background: linear-gradient(90deg, transparent, rgba(239, 63, 74, .72), transparent);
  transform: rotate(-18deg);
}
.hero-grid { position: relative; z-index: 2; min-height: 690px; display: grid; grid-template-columns: 1.03fr .97fr; align-items: center; gap: 72px; padding-block: 72px; }
.overline { display: flex; align-items: center; gap: 12px; margin: 0 0 22px; color: #91acd2; font: 800 11px/1.3 monospace; letter-spacing: .12em; }
.overline span { padding: 6px 10px; color: #fff; background: var(--blue); border-radius: 4px; }
.hero h1 { margin: 0; font-size: clamp(44px, 4.9vw, 67px); line-height: 1.08; letter-spacing: -.06em; }
.hero h1 em { display: inline-block; margin-top: 8px; color: transparent; background: linear-gradient(90deg, #ff6671, #ff9a72); background-clip: text; -webkit-background-clip: text; font-style: normal; }
.lede { max-width: 650px; margin: 27px 0 0; color: #b8c8df; font-size: 17px; line-height: 1.95; }
.actions { display: flex; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 51px; padding: 0 22px; border-radius: 8px; font-size: 14px; font-weight: 850; transition: transform .2s, box-shadow .2s; }
.button:hover { transform: translateY(-2px); }
.button.primary { color: #fff; background: var(--red); box-shadow: 8px 8px 0 rgba(255, 255, 255, .08), 0 16px 35px rgba(239, 63, 74, .22); }
.button.ghost { color: #e7f0ff; border: 1px solid rgba(178, 205, 242, .35); background: rgba(255, 255, 255, .045); }
.hero-facts { display: grid; grid-template-columns: repeat(3, 1fr); margin: 38px 0 0; padding: 0; border-top: 1px solid rgba(171, 198, 235, .2); list-style: none; }
.hero-facts li { display: flex; flex-direction: column; padding: 17px 12px 0 0; }
.hero-facts li + li { padding-left: 18px; border-left: 1px solid rgba(171, 198, 235, .2); }
.hero-facts b { color: #fff; font-size: 19px; }
.hero-facts span { color: #819bbf; font-size: 11px; }

.hero-console { position: relative; padding: 17px; border: 1px solid rgba(88, 153, 245, .32); border-radius: 23px; background: rgba(8, 31, 67, .82); box-shadow: 0 34px 90px rgba(0, 0, 0, .32); backdrop-filter: blur(12px); }
.hero-console::before { content: ""; position: absolute; inset: -1px; z-index: -1; border-radius: 23px; background: linear-gradient(145deg, rgba(60, 141, 255, .45), transparent 38%, rgba(239, 63, 74, .22)); }
.console-top { display: flex; justify-content: space-between; align-items: center; padding: 6px 6px 16px; color: #dce9fb; border-bottom: 1px solid rgba(116, 168, 238, .2); font-size: 12px; font-weight: 800; }
.console-top b { color: #63e1a8; font: 10px monospace; }
.console-top i { display: inline-block; width: 7px; height: 7px; margin-right: 6px; border-radius: 50%; background: #38db98; box-shadow: 0 0 0 6px rgba(56, 219, 152, .1); animation: live 1.5s infinite; }
.radar { position: relative; height: 260px; margin: 17px 0; overflow: hidden; border: 1px solid rgba(96, 153, 231, .2); border-radius: 15px; background: radial-gradient(circle at center, rgba(36, 104, 242, .2), transparent 55%), linear-gradient(rgba(90, 149, 229, .1) 1px, transparent 1px), linear-gradient(90deg, rgba(90, 149, 229, .1) 1px, transparent 1px), #071c3c; background-size: auto, 34px 34px, 34px 34px; }
.radar::before { content: ""; position: absolute; inset: 0; background: conic-gradient(from 0deg at 50% 50%, rgba(60, 141, 255, .28), transparent 18%, transparent 100%); animation: sweep 4.5s linear infinite; }
.orbit { position: absolute; left: 50%; top: 50%; border: 1px solid rgba(94, 160, 255, .4); border-radius: 50%; transform: translate(-50%, -50%); }
.orbit-a { width: 182px; height: 182px; }
.orbit-b { width: 104px; height: 104px; }
.radar-core { position: absolute; left: 50%; top: 50%; display: grid; place-items: center; width: 58px; height: 58px; transform: translate(-50%, -50%); color: #fff; background: linear-gradient(145deg, var(--blue-bright), var(--blue)); border: 6px solid rgba(255, 255, 255, .92); border-radius: 50%; font-size: 25px; font-weight: 900; box-shadow: 0 0 0 13px rgba(36, 104, 242, .16), 0 16px 30px rgba(0, 0, 0, .25); }
.ping { position: absolute; width: 9px; height: 9px; border-radius: 50%; background: #ff5864; box-shadow: 0 0 0 7px rgba(255, 88, 100, .14); }
.p1 { left: 21%; top: 34%; }.p2 { right: 18%; top: 28%; }.p3 { right: 26%; bottom: 18%; }
.log-list { display: grid; gap: 8px; }
.log-list div { display: grid; grid-template-columns: 70px 66px 1fr; gap: 9px; padding: 9px 11px; color: #b9cbe3; background: rgba(31, 67, 114, .62); border: 1px solid rgba(115, 163, 226, .08); border-radius: 7px; font: 10px monospace; }
.log-list time { color: #758fad; }.log-list span { color: #6ca4ff; font-weight: 800; }.log-list .ok { color: #51dca0; }.log-list code { overflow: hidden; text-overflow: ellipsis; color: #d4e1f2; }
.console-note { margin: 10px 3px 0; color: #6681a5; font-size: 10px; }
@keyframes sweep { to { transform: rotate(360deg); } }
@keyframes live { 50% { opacity: .35; } }

.contact-bar { position: relative; z-index: 4; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 14px 42px rgba(20, 55, 103, .08); }
.contact-inner { min-height: 116px; display: grid; grid-template-columns: 58px 1fr auto; align-items: center; gap: 18px; }
.tg-mark { display: grid; place-items: center; width: 55px; height: 55px; border-radius: 17px; background: #2aabee; box-shadow: 0 12px 25px rgba(42, 171, 238, .24); }
.tg-mark svg { width: 30px; fill: #fff; }
.contact-inner div:nth-child(2) { display: flex; flex-direction: column; }
.contact-inner small { color: var(--muted); font-size: 11px; }
.contact-inner strong { color: var(--ink); font-size: 20px; }
.contact-inner strong span { margin-left: 8px; color: var(--blue); font-size: 14px; font-weight: 700; }
.dual-user { margin-top: 2px; color: var(--blue); font-size: 11px; font-weight: 700; }
.dual-user b { margin-left: 3px; }
.contact-inner > a { padding: 12px 19px; color: #fff; background: var(--navy); border-radius: 8px; font-size: 13px; font-weight: 800; transition: .2s; }
.contact-inner > a:hover { background: var(--blue); }

.section { padding: 108px 0; }
.section-head { display: grid; grid-template-columns: 185px minmax(0, 1fr) 330px; align-items: end; gap: 28px; margin-bottom: 45px; }
.section-head p, .chapter { margin: 0; color: var(--blue); font: 800 11px monospace; letter-spacing: .13em; }
.section-head h2 { margin: 0; font-size: clamp(31px, 3.5vw, 47px); line-height: 1.17; letter-spacing: -.05em; }
.section-head > span { color: var(--muted); font-size: 14px; }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; }
.service-card { position: relative; min-height: 330px; padding: 27px; overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: #fff; box-shadow: 0 12px 35px rgba(32, 70, 122, .06); transition: .25s; }
.service-card::before { content: ""; position: absolute; width: 145px; height: 145px; right: -70px; top: -72px; border-radius: 50%; background: rgba(36, 104, 242, .07); transition: .25s; }
.service-card:hover { color: #fff; background: linear-gradient(145deg, var(--blue), #164ba9); border-color: transparent; transform: translateY(-7px); box-shadow: var(--shadow); }
.service-card:hover::before { background: rgba(255, 255, 255, .1); transform: scale(1.45); }
.service-card > b { color: var(--red); font: 800 11px monospace; }
.service-card h3 { margin: 65px 0 13px; font-size: 20px; line-height: 1.4; }
.service-card p { margin: 0; color: var(--muted); font-size: 14px; }
.service-card > span { position: absolute; left: 27px; bottom: 25px; color: #91a0b5; font: 800 9px monospace; letter-spacing: .11em; }
.service-card:hover p, .service-card:hover > b, .service-card:hover > span { color: #fff; }

.paper-section { position: relative; overflow: hidden; background: var(--canvas); border-block: 1px solid var(--line); }
.paper-section::after { content: ""; position: absolute; width: 480px; height: 480px; right: -240px; bottom: -250px; border: 1px solid rgba(36, 104, 242, .12); border-radius: 50%; box-shadow: 0 0 0 70px rgba(36, 104, 242, .025), 0 0 0 140px rgba(239, 63, 74, .018); }
.diagnosis-grid { position: relative; z-index: 2; display: grid; grid-template-columns: .78fr 1.22fr; gap: 80px; }
.diagnosis-copy { position: sticky; top: 125px; align-self: start; }
.diagnosis-copy h2 { margin: 20px 0; font-size: 42px; line-height: 1.23; letter-spacing: -.045em; }
.diagnosis-copy > p:not(.chapter) { color: var(--muted); }
.text-link { display: inline-block; margin-top: 20px; color: var(--blue); font-weight: 850; }
.checklist { margin: 0; padding: 6px 22px; list-style: none; border: 1px solid var(--line); border-radius: 22px; background: #fff; box-shadow: 0 20px 55px rgba(27, 66, 119, .08); }
.checklist li { display: grid; grid-template-columns: 58px 1fr; gap: 15px; padding: 22px 8px; border-bottom: 1px solid var(--line); }
.checklist li:last-child { border: 0; }
.checklist li > span { display: grid; place-items: center; width: 35px; height: 35px; color: var(--blue); background: #edf4ff; border-radius: 10px; font: 800 10px monospace; }
.checklist b { font-size: 18px; }.checklist p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }

.timeline { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; }
.timeline::before { content: ""; position: absolute; left: 7%; right: 7%; top: 36px; height: 1px; background: linear-gradient(90deg, var(--blue), var(--red)); }
.timeline article { position: relative; min-height: 220px; padding: 72px 25px 24px; border: 1px solid var(--line); border-radius: 18px; background: #fff; }
.timeline article::before { content: ""; position: absolute; left: 25px; top: 28px; width: 17px; height: 17px; background: #fff; border: 5px solid var(--blue); border-radius: 50%; box-shadow: 0 0 0 6px #edf4ff; }
.timeline article:nth-child(even)::before { border-color: var(--red); box-shadow: 0 0 0 6px #fff0f2; }
.timeline time { color: var(--blue); font: 800 10px monospace; }
.timeline h3 { margin: 11px 0 8px; font-size: 20px; }.timeline p { margin: 0; color: var(--muted); font-size: 14px; }

.faq-section { color: #fff; background: linear-gradient(135deg, var(--navy), #0b2a57); }
.faq-grid { display: grid; grid-template-columns: 350px 1fr; gap: 82px; }
.faq-grid .section-head { display: block; margin: 0; }
.faq-grid .section-head p { color: #75a9ff; }.faq-grid .section-head h2 { margin: 18px 0; }.faq-grid .section-head span { color: #8fa8cb; }
.faqs { border-top: 1px solid rgba(170, 199, 238, .28); }
details { border-bottom: 1px solid rgba(170, 199, 238, .2); }
summary { position: relative; padding: 24px 45px 24px 0; cursor: pointer; list-style: none; font-weight: 800; }
summary::after { content: "+"; position: absolute; right: 8px; color: #7caeff; font-size: 22px; font-weight: 400; }
details[open] summary::after { content: "−"; }
details p { margin: 0 0 23px; color: #9cb1cf; font-size: 14px; }

.footer { padding: 56px 0 30px; color: #dbe7f8; background: #050f20; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; }
.footer strong { font-size: 18px; }.footer p { margin: 7px 0 0; color: #7186a5; font-size: 13px; }.footer-inner > a { color: #69a2ff; font-size: 13px; }
.legal { margin-top: 38px; padding-top: 18px; color: #536984; border-top: 1px solid #1a2c46; font-size: 11px; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s, transform .65s; }.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 920px) {
  .menu { display: block; padding: 8px 12px; color: #fff; border: 1px solid rgba(255, 255, 255, .2); border-radius: 8px; background: transparent; }
  .nav { display: none; position: absolute; left: 20px; right: 20px; top: 70px; padding: 12px; border: 1px solid #294972; border-radius: 14px; background: #0a2145; box-shadow: var(--shadow); }
  .nav.open { display: grid; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .section-head { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .diagnosis-grid, .faq-grid { grid-template-columns: 1fr; gap: 46px; }
  .diagnosis-copy { position: static; }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .timeline::before { display: none; }
}

@media (max-width: 620px) {
  .wrap { width: min(calc(100% - 28px), var(--wrap)); }
  .header-inner { height: 68px; }.brand-seal { width: 40px; height: 40px; border-radius: 11px; }.brand strong { font-size: 15px; }
  .hero-grid { min-height: auto; padding-block: 54px; }.hero h1 { font-size: 38px; }.lede { font-size: 15px; }
  .actions { display: grid; }.hero-facts { grid-template-columns: repeat(3, 1fr); }.hero-facts li { padding: 13px 5px 0; }.hero-facts li + li { padding-left: 10px; }
  .hero-console { padding: 12px; border-radius: 18px; }.radar { height: 215px; }.log-list div { grid-template-columns: 58px 57px 1fr; font-size: 9px; }
  .contact-inner { grid-template-columns: 46px 1fr; min-height: 132px; }.tg-mark { width: 44px; height: 44px; border-radius: 13px; }.contact-inner > a { grid-column: 1 / -1; margin-bottom: 16px; text-align: center; }
  .section { padding: 76px 0; }.section-head h2, .diagnosis-copy h2 { font-size: 31px; }
  .service-grid { grid-template-columns: 1fr; }.service-card { min-height: 265px; }.service-card h3 { margin-top: 40px; }
  .checklist { padding-inline: 14px; }.checklist li { grid-template-columns: 47px 1fr; }
  .timeline { grid-template-columns: 1fr; }.timeline article { min-height: 190px; }
  .footer-inner { display: block; }.footer-inner > a { display: inline-block; margin-top: 20px; }
}