:root {
  --bg: #07131f;
  --bg-soft: #0c1b2a;
  --panel: rgba(13, 31, 47, .78);
  --panel-solid: #102437;
  --line: rgba(164, 202, 226, .16);
  --line-strong: rgba(164, 202, 226, .28);
  --text: #eef7fb;
  --muted: #9eb5c5;
  --cyan: #63e3d4;
  --blue: #77bdf4;
  --warm: #f0c88e;
  --max-width: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 20; padding: 8px 13px; border-radius: 4px; color: #06161d; background: var(--cyan); transform: translateY(-150%); transition: transform .2s ease; }.skip-link:focus { transform: translateY(0); }
.page-glow { position: fixed; width: 34rem; height: 34rem; border-radius: 50%; pointer-events: none; filter: blur(80px); opacity: .11; z-index: -1; }
.page-glow-one { top: -15rem; right: -12rem; background: var(--cyan); }
.page-glow-two { bottom: 6rem; left: -18rem; background: #2774a7; }
.section-wrap { width: min(calc(100% - 64px), var(--max-width)); margin: 0 auto; }

.site-header { width: min(calc(100% - 64px), var(--max-width)); height: 92px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; position: relative; z-index: 5; }
.brand, .footer-brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark { width: 38px; height: 38px; display: inline-grid; place-items: center; border: 1px solid rgba(99, 227, 212, .7); border-radius: 12px 12px 12px 3px; color: var(--cyan); font-size: 20px; font-weight: 700; box-shadow: 0 0 26px rgba(99, 227, 212, .12); }
.brand-copy { display: grid; gap: 0; }
.brand-copy strong { font-size: 16px; letter-spacing: .1em; }
.brand-copy small { color: var(--muted); font-size: 8px; letter-spacing: .18em; }
.site-nav { display: flex; align-items: center; gap: 34px; color: var(--muted); font-size: 13px; }
.site-nav a { transition: color .25s ease; }
.site-nav a:hover { color: var(--cyan); }
.site-nav .nav-contact { padding: 9px 17px; border: 1px solid var(--line-strong); border-radius: 99px; color: var(--text); }
.site-nav .nav-contact:hover { border-color: var(--cyan); color: var(--cyan); }
.menu-toggle { display: none; border: 0; background: transparent; color: var(--text); cursor: pointer; }

.hero { min-height: 650px; padding: 93px 0 108px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(390px, .87fr); gap: 90px; align-items: center; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 21px; color: var(--cyan); font-size: 10px; font-weight: 700; letter-spacing: .2em; }
.eyebrow span { width: 25px; height: 1px; display: inline-block; background: var(--cyan); }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 660px; margin-bottom: 24px; font-size: clamp(3.2rem, 6vw, 5.7rem); font-weight: 300; letter-spacing: -.07em; line-height: 1.08; }
h1 em, h2 em { color: var(--warm); font-style: normal; }
.hero-lead { max-width: 530px; margin-bottom: 30px; color: var(--muted); font-size: 16px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-bottom: 29px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 18px; padding: 12px 21px; border: 1px solid transparent; border-radius: 5px; font-size: 13px; transition: transform .25s ease, border-color .25s ease, background .25s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #06161d; background: var(--cyan); font-weight: 700; }
.button-primary:hover { background: #89f0e4; }
.button-ghost { border-color: var(--line-strong); color: var(--text); }
.button-ghost:hover { border-color: var(--cyan); color: var(--cyan); }
.hero-note { display: flex; align-items: center; gap: 9px; color: #7894a6; font-size: 11px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 5px rgba(99, 227, 212, .1); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }.hero-tags span { padding: 4px 10px; border: 1px solid var(--line); border-radius: 99px; color: #7f9aaa; font-size: 10px; }

.hero-visual { min-height: 440px; position: relative; display: grid; place-items: center; }
.orbit { position: absolute; border: 1px solid rgba(99, 227, 212, .14); border-radius: 50%; transform: rotate(-19deg); }
.orbit-one { width: 440px; height: 250px; }
.orbit-two { width: 510px; height: 300px; border-color: rgba(119, 189, 244, .1); transform: rotate(53deg); }
.code-card { width: min(100%, 430px); position: relative; padding: 0 24px 17px; border: 1px solid rgba(138, 204, 225, .23); border-radius: 10px; background: linear-gradient(145deg, rgba(26, 54, 75, .95), rgba(9, 24, 38, .96)); box-shadow: 20px 30px 80px rgba(0, 0, 0, .35), inset 0 1px rgba(255,255,255,.04); transform: perspective(800px) rotateY(-9deg) rotateX(3deg); }
.code-card:after { content: ""; position: absolute; inset: 10% -8% -12%; z-index: -1; border-radius: inherit; background: rgba(99, 227, 212, .16); filter: blur(45px); }
.code-card-bar { height: 51px; display: flex; align-items: center; gap: 7px; border-bottom: 1px solid var(--line); color: #85a0b4; }
.code-card-bar > span { width: 7px; height: 7px; border-radius: 50%; background: #f0a285; }
.code-card-bar > span:nth-child(2) { background: #e7c47c; }
.code-card-bar > span:nth-child(3) { background: var(--cyan); }
.code-card-bar small { margin-left: 11px; font-size: 10px; letter-spacing: .08em; }
.code-lines { padding: 22px 0 18px; color: #b9d9e5; font-family: Consolas, "SFMono-Regular", monospace; font-size: 13px; line-height: 2.05; }
.code-lines p { margin: 0; white-space: nowrap; }
.code-lines i { width: 25px; display: inline-block; color: #537386; font-style: normal; font-size: 10px; }
.code-lines b { color: #f0b783; font-weight: 400; }
.code-lines strong { color: var(--cyan); font-weight: 400; }
.code-lines .code-comment { color: #6c92a5; font-size: 11px; }
.code-card-footer { display: flex; align-items: center; gap: 8px; padding-top: 12px; border-top: 1px solid var(--line); color: #7799ab; font-family: Consolas, monospace; font-size: 10px; }
.pulse-line { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 4px rgba(99, 227, 212, .1); }
.footer-value { margin-left: auto; color: var(--cyan); }
.visual-tag { position: absolute; padding: 7px 11px; border: 1px solid var(--line); border-radius: 4px; background: rgba(10, 29, 44, .82); color: #9fb9c9; font-family: Consolas, monospace; font-size: 10px; box-shadow: 0 10px 30px rgba(0,0,0,.15); }
.visual-tag span { color: var(--cyan); }
.visual-tag-top { top: 50px; right: -8px; }
.visual-tag-bottom { bottom: 41px; left: -18px; }

.trust-strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(12, 31, 46, .42); }
.trust-inner { min-height: 80px; display: flex; align-items: center; gap: 24px; color: #9db6c5; font-size: 11px; }
.trust-inner p { margin: 0; white-space: nowrap; }
.trust-line { width: 48px; height: 1px; background: var(--line-strong); }
.trust-stats { display: flex; align-items: center; gap: 10px; margin-left: auto; color: #688797; }
.trust-stats strong { color: var(--cyan); font-family: Consolas, monospace; font-size: 13px; font-weight: 400; }
.trust-stats span { margin-right: 18px; }

.content-section { padding: 148px 0 154px; }
.section-heading { max-width: 680px; margin-bottom: 61px; }
h2 { margin-bottom: 20px; font-size: clamp(2.4rem, 4vw, 4rem); font-weight: 300; letter-spacing: -.06em; line-height: 1.16; }
.section-heading > p:last-child, .approach-intro > p:last-child { max-width: 500px; color: var(--muted); font-size: 14px; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 17px; }
.service-card { min-height: 363px; padding: 28px 28px 25px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); transition: border-color .3s ease, transform .3s ease, background .3s ease; }
.service-card:hover { border-color: rgba(99, 227, 212, .55); background: rgba(21, 48, 67, .9); transform: translateY(-6px); }
.service-card-featured { border-color: rgba(99, 227, 212, .4); background: linear-gradient(155deg, rgba(20, 60, 71, .8), rgba(14, 33, 48, .86)); }
.service-icon { width: 50px; height: 50px; margin-bottom: 41px; display: grid; place-items: center; border: 1px solid rgba(99, 227, 212, .35); border-radius: 14px 14px 14px 3px; color: var(--cyan); }
.icon-brackets { font-family: Consolas, monospace; font-size: 17px; }
.icon-grid { padding: 12px; grid-template-columns: repeat(2, 1fr); gap: 4px; }
.icon-grid span { width: 100%; height: 100%; border: 1px solid var(--cyan); opacity: .75; }
.icon-signal { display: flex; align-items: end; justify-content: center; gap: 4px; padding: 13px; }
.icon-signal span { width: 4px; border-radius: 4px; background: var(--cyan); }
.icon-signal span:nth-child(1) { height: 25%; opacity: .45; }.icon-signal span:nth-child(2) { height: 44%; opacity: .6; }.icon-signal span:nth-child(3) { height: 67%; opacity: .8; }.icon-signal span:nth-child(4) { height: 100%; }
.service-index { margin-bottom: 13px; color: var(--cyan); font-family: Consolas, monospace; font-size: 10px; letter-spacing: .1em; }
.service-card h3 { margin-bottom: 11px; font-size: 21px; font-weight: 400; letter-spacing: -.04em; }
.service-card > p:not(.service-index) { margin-bottom: 20px; color: var(--muted); font-size: 13px; }
.service-card a { margin-top: auto; color: var(--cyan); font-size: 12px; }.service-card a span { margin-left: 9px; font-size: 16px; }

.scenario-section { padding: 7px 0 151px; }.scenario-heading { display: flex; align-items: end; justify-content: space-between; gap: 60px; margin-bottom: 54px; }.scenario-heading h2 { margin-bottom: 0; }.scenario-heading > p { max-width: 400px; margin-bottom: 8px; color: var(--muted); font-size: 14px; }.scenario-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }.scenario-card { min-height: 210px; padding: 27px 20px 24px; display: flex; flex-direction: column; justify-content: space-between; border-right: 1px solid var(--line); transition: background .3s ease, color .3s ease; }.scenario-card:last-child { border-right: 0; }.scenario-card:hover { background: rgba(99, 227, 212, .07); }.scenario-symbol { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid rgba(99, 227, 212, .3); border-radius: 50%; color: var(--cyan); font-size: 20px; }.scenario-card p { margin-bottom: 7px; color: #698798; font-family: Consolas, monospace; font-size: 10px; letter-spacing: .08em; }.scenario-card h3 { margin-bottom: 4px; font-size: 17px; font-weight: 400; }.scenario-card div > span { color: var(--muted); font-size: 11px; }

.approach-section { padding: 127px 0 137px; background: #0a1c2b; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.approach-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; }
.approach-intro h2 { margin-bottom: 25px; }
.steps { border-top: 1px solid var(--line-strong); }
.step-item { display: grid; grid-template-columns: 65px 1fr; gap: 19px; padding: 27px 0; border-bottom: 1px solid var(--line); }
.step-number { color: var(--cyan); font-family: Consolas, monospace; font-size: 12px; }
.step-item h3 { margin-bottom: 7px; font-size: 19px; font-weight: 400; }.step-item p { max-width: 420px; margin-bottom: 0; color: var(--muted); font-size: 13px; }

.about-section { padding: 147px 0 140px; }
.about-panel { display: grid; grid-template-columns: 1fr 235px; gap: 40px; align-items: center; padding: 62px 68px; border: 1px solid var(--line); border-radius: 7px; background: linear-gradient(112deg, rgba(18, 48, 66, .83), rgba(9, 24, 38, .6)); }
.about-copy { max-width: 605px; }.about-copy h2 { margin-bottom: 24px; }.about-copy > p:not(.eyebrow) { margin-bottom: 12px; color: var(--muted); font-size: 14px; }
.about-seal { width: 190px; height: 190px; display: flex; flex-direction: column; align-items: center; justify-content: center; justify-self: center; border: 1px solid rgba(99, 227, 212, .42); border-radius: 50%; color: var(--cyan); transform: rotate(-12deg); position: relative; }
.about-seal:before, .about-seal:after { content: ""; position: absolute; inset: 10px; border: 1px dashed rgba(99, 227, 212, .25); border-radius: 50%; }.about-seal:after { inset: -9px; border-style: solid; border-color: rgba(240, 200, 142, .3) transparent; }
.about-seal span, .about-seal small { font-family: Consolas, monospace; font-size: 9px; letter-spacing: .22em; }.about-seal strong { margin: 4px 0; font-size: 30px; font-weight: 300; }.about-seal small { color: var(--warm); }
.company-facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 60px; margin-top: 27px; padding: 0 12px; }.company-facts > div { min-height: 70px; display: flex; flex-direction: column; justify-content: center; border-bottom: 1px solid var(--line); }.company-facts span { color: #6e8b9d; font-size: 11px; }.company-facts strong { color: #d7e6ed; font-size: 13px; font-weight: 400; }.company-facts .fact-wide { grid-column: 1 / -1; }

.faq-section { padding: 8px 0 139px; }.faq-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 100px; }.faq-intro > p:last-child { max-width: 400px; color: var(--muted); font-size: 14px; }.faq-list { border-top: 1px solid var(--line-strong); }.faq-list details { border-bottom: 1px solid var(--line); }.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 25px; padding: 23px 0; color: #dcecf2; cursor: pointer; list-style: none; font-size: 15px; }.faq-list summary::-webkit-details-marker { display: none; }.faq-list summary span { color: var(--cyan); font-size: 22px; font-weight: 200; transition: transform .25s ease; }.faq-list details[open] summary span { transform: rotate(45deg); }.faq-list details p { max-width: 580px; margin: -7px 35px 23px 0; color: var(--muted); font-size: 13px; }

.contact-section { padding-bottom: 135px; }.contact-card { padding: 55px 62px; display: flex; align-items: end; justify-content: space-between; gap: 30px; border: 1px solid rgba(99, 227, 212, .4); border-radius: 7px; background: radial-gradient(circle at 87% 13%, rgba(99, 227, 212, .15), transparent 27%), linear-gradient(120deg, rgba(20, 55, 70, .9), rgba(12, 30, 45, .85)); }.contact-card h2 { margin-bottom: 0; }.contact-email { display: flex; align-items: center; gap: 24px; padding-bottom: 6px; border-bottom: 1px solid var(--cyan); color: var(--cyan); font-family: Consolas, monospace; font-size: 13px; white-space: nowrap; }.contact-email b { font-size: 20px; font-weight: 400; }
.site-footer { min-height: 104px; display: flex; align-items: center; gap: 27px; border-top: 1px solid var(--line); color: #7692a2; font-size: 11px; }.footer-brand { color: #bdd2dd; }.footer-brand .brand-mark { width: 27px; height: 27px; border-radius: 8px 8px 8px 2px; font-size: 14px; }.footer-links { display: flex; gap: 18px; margin-left: auto; color: #8ca7b5; }.footer-links a:hover { color: var(--cyan); }.footer-copy { color: #587384; }.back-to-top { width: 34px; height: 34px; display: grid; place-items: center; position: fixed; right: 24px; bottom: 24px; z-index: 4; border: 1px solid var(--line-strong); border-radius: 50%; background: rgba(8, 24, 38, .8); color: var(--cyan); font-size: 18px; opacity: .8; transition: opacity .25s ease, transform .25s ease; }.back-to-top:hover { opacity: 1; transform: translateY(-3px); }

[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *:before, *:after { transition-duration: .01ms !important; animation-duration: .01ms !important; } [data-reveal] { opacity: 1; transform: none; } }
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 35px; padding-top: 65px; }.hero-copy { max-width: 700px; }.hero-visual { width: min(100%, 550px); min-height: 380px; justify-self: center; }.service-grid { grid-template-columns: 1fr; }.service-card { min-height: 280px; }.service-icon { margin-bottom: 27px; }.scenario-grid { grid-template-columns: repeat(2, 1fr); }.scenario-card:nth-child(2) { border-right: 0; }.scenario-card:nth-child(-n+2) { border-bottom: 1px solid var(--line); }.approach-layout { gap: 55px; }.about-panel { padding: 46px; }.contact-card { align-items: start; flex-direction: column; }
}
@media (max-width: 640px) {
  .section-wrap, .site-header { width: min(calc(100% - 38px), var(--max-width)); }.site-header { height: 75px; }.menu-toggle { width: 35px; height: 35px; display: grid; place-content: center; gap: 5px; position: relative; z-index: 2; }.menu-toggle span { width: 19px; height: 1px; display: block; background: var(--text); transition: transform .25s ease; }.menu-toggle.is-open span:first-child { transform: translateY(3px) rotate(45deg); }.menu-toggle.is-open span:last-child { transform: translateY(-3px) rotate(-45deg); }.site-nav { position: absolute; top: 70px; right: 0; left: 0; padding: 19px; display: none; flex-direction: column; align-items: stretch; gap: 0; border: 1px solid var(--line); border-radius: 6px; background: #0d2234; box-shadow: 0 22px 50px rgba(0,0,0,.25); }.site-nav.is-open { display: flex; }.site-nav a { padding: 11px 5px; }.site-nav .nav-contact { margin-top: 8px; text-align: center; }.hero { min-height: 0; padding: 72px 0 80px; }.hero h1 { font-size: clamp(2.9rem, 13vw, 4.2rem); }.hero-lead { font-size: 14px; }.hero-visual { min-height: 305px; width: calc(100% + 15px); margin-left: -7px; }.orbit-one { width: 340px; height: 190px; }.orbit-two { width: 380px; height: 225px; }.code-card { padding: 0 15px 12px; transform: none; }.code-card-bar { height: 42px; }.code-lines { padding: 17px 0 12px; font-size: 10px; }.code-lines .code-comment { font-size: 9px; }.visual-tag { font-size: 8px; }.visual-tag-top { top: 14px; right: -4px; }.visual-tag-bottom { bottom: 15px; left: -4px; }.trust-inner { min-height: 103px; flex-wrap: wrap; gap: 8px 15px; padding-top: 18px; padding-bottom: 18px; }.trust-line { width: 25px; }.trust-stats { width: 100%; margin-left: 0; }.trust-stats span { margin-right: 7px; }.content-section, .about-section { padding: 96px 0; }.scenario-section { padding: 0 0 96px; }.scenario-heading { align-items: start; flex-direction: column; gap: 18px; margin-bottom: 38px; }.scenario-heading > p { margin-bottom: 0; }.scenario-grid { grid-template-columns: 1fr; }.scenario-card { min-height: 145px; border-right: 0; border-bottom: 1px solid var(--line); }.scenario-card:last-child { border-bottom: 0; }.scenario-card:nth-child(-n+2) { border-bottom: 1px solid var(--line); }.section-heading { margin-bottom: 42px; }.service-card { padding: 23px; }.approach-section { padding: 94px 0; }.approach-layout { grid-template-columns: 1fr; gap: 50px; }.step-item { grid-template-columns: 42px 1fr; }.about-panel { grid-template-columns: 1fr; padding: 31px 24px 40px; }.about-seal { width: 150px; height: 150px; }.about-seal strong { font-size: 25px; }.company-facts { grid-template-columns: 1fr; gap: 0 20px; padding: 0; }.company-facts .fact-wide { grid-column: auto; }.faq-section { padding: 0 0 95px; }.faq-layout { grid-template-columns: 1fr; gap: 45px; }.faq-list summary { font-size: 14px; }.contact-section { padding-bottom: 93px; }.contact-card { padding: 34px 24px; }.contact-email { font-size: 10px; gap: 13px; }.site-footer { min-height: 140px; padding: 24px 0; flex-wrap: wrap; gap: 11px 20px; }.footer-links { order: 3; width: 100%; margin-left: 0; }.footer-copy { width: 100%; }
}