:root {
  --ink: #10242d;
  --muted: #667985;
  --subtle: #edf4f4;
  --line: #d9e6e8;
  --paper: #f7fbfa;
  --white: #ffffff;
  --deep: #061f2a;
  --deep-2: #0b3140;
  --teal: #087d86;
  --cyan: #16b7bd;
  --green: #16a978;
  --amber: #f1a93b;
  --shadow: 0 24px 80px rgba(9, 42, 55, 0.13);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: radial-gradient(circle at 12% 16%, rgba(22, 183, 189, 0.12), transparent 26rem), radial-gradient(circle at 92% 44%, rgba(241, 169, 59, 0.08), transparent 28rem), linear-gradient(180deg, #ffffff 0%, var(--paper) 58%, #eef6f4 100%); }
body.nav-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; }
button, input, textarea { font: inherit; }
h1, h2, h3, p { margin: 0; overflow-wrap: anywhere; }
h1, h2, h3 { letter-spacing: 0; }
.site-header { position: fixed; top: 0; left: 0; z-index: 40; display: flex; width: 100%; align-items: center; justify-content: space-between; padding: 18px clamp(20px, 5vw, 72px); color: var(--white); transition: background 180ms ease, box-shadow 180ms ease, color 180ms ease, padding 180ms ease; }
.site-header.is-scrolled, .site-header.is-open { padding-block: 12px; color: var(--ink); background: rgba(255, 255, 255, 0.92); box-shadow: 0 14px 40px rgba(7, 38, 50, 0.1); backdrop-filter: blur(16px); }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 0; }
.brand-mark { display: grid; width: 42px; height: 42px; flex: 0 0 auto; place-items: center; border: 1px solid rgba(255, 255, 255, 0.42); border-radius: 8px; background: linear-gradient(135deg, var(--green), var(--teal)); color: var(--white); font-weight: 900; }
.brand-text strong, .brand-text small { display: block; line-height: 1.1; }
.brand-text strong { font-size: 18px; }
.brand-text small { margin-top: 4px; font-size: 12px; opacity: 0.74; }
.site-nav { display: flex; align-items: center; gap: clamp(18px, 3vw, 34px); font-size: 15px; font-weight: 700; }
.site-nav a { position: relative; padding-block: 8px; }
.site-nav a::after { position: absolute; right: 0; bottom: 0; left: 0; height: 2px; border-radius: 999px; background: currentColor; content: ""; opacity: 0; transform: scaleX(0.55); transition: opacity 160ms ease, transform 160ms ease; }
.site-nav a:hover::after, .site-nav a:focus-visible::after { opacity: 0.75; transform: scaleX(1); }
.nav-toggle { display: none; width: 44px; height: 44px; border: 1px solid rgba(255, 255, 255, 0.38); border-radius: 8px; background: rgba(255, 255, 255, 0.08); color: currentColor; cursor: pointer; }
.nav-toggle span { display: block; width: 20px; height: 2px; margin: 5px auto; border-radius: 999px; background: currentColor; }
.hero { position: relative; min-height: 88vh; overflow: hidden; color: var(--white); }
.hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4, 27, 38, 0.94) 0%, rgba(5, 42, 54, 0.82) 42%, rgba(5, 42, 54, 0.3) 78%), linear-gradient(0deg, rgba(3, 22, 30, 0.86), transparent 36%); }
.hero-grid { position: absolute; inset: 0; opacity: 0.2; background-image: linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(90deg, #000, transparent 75%); }
.hero-inner { position: relative; z-index: 1; display: grid; width: min(1200px, calc(100% - 40px)); min-height: 88vh; align-content: center; margin: 0 auto; padding: 120px 0 76px; }
.eyebrow { margin-bottom: 14px; color: var(--teal); font-size: 12px; font-weight: 900; letter-spacing: 0; text-transform: uppercase; }
.hero-eyebrow { color: #75f5d4; }
.hero h1 { max-width: 880px; font-size: clamp(42px, 7vw, 88px); line-height: 1.04; }
.hero-lead { max-width: 760px; margin-top: 24px; color: rgba(255, 255, 255, 0.82); font-size: clamp(17px, 2vw, 23px); line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 10px; border: 1px solid transparent; border-radius: 8px; padding: 0 22px; font-size: 15px; font-weight: 900; transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease, border-color 160ms ease; }
.button svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 2; }
.button:hover, .button:focus-visible { transform: translateY(-2px); }
.button-primary { background: linear-gradient(135deg, var(--green), var(--teal)); color: var(--white); box-shadow: 0 16px 38px rgba(12, 132, 133, 0.3); }
.button-glass { border-color: rgba(255, 255, 255, 0.4); background: rgba(255, 255, 255, 0.08); color: var(--white); }
.hero-metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); width: min(760px, 100%); gap: 12px; margin: 54px 0 0; }
.hero-metrics div { min-height: 112px; border: 1px solid rgba(255, 255, 255, 0.18); border-radius: 8px; padding: 20px; background: rgba(255, 255, 255, 0.08); backdrop-filter: blur(12px); }
.hero-metrics dt { font-size: clamp(25px, 4vw, 38px); font-weight: 900; }
.hero-metrics dd { margin: 8px 0 0; color: rgba(255, 255, 255, 0.74); font-size: 14px; }
.trust-band { position: relative; z-index: 2; width: min(1200px, calc(100% - 40px)); margin: -38px auto 0; }
.trust-inner { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 20px; align-items: center; border: 1px solid var(--line); border-radius: 8px; padding: 18px; background: rgba(255, 255, 255, 0.94); box-shadow: var(--shadow); backdrop-filter: blur(18px); }
.trust-inner p { color: var(--muted); font-size: 15px; line-height: 1.7; }
.trust-tags { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px; }
.trust-tags span { border: 1px solid var(--line); border-radius: 999px; padding: 8px 12px; background: #f9fcfb; color: var(--ink); font-size: 13px; font-weight: 800; }
.section { width: min(1200px, calc(100% - 40px)); margin: 0 auto; padding: 92px 0; }
.section-heading { display: grid; grid-template-columns: 0.88fr 1.12fr; gap: clamp(24px, 5vw, 72px); align-items: end; margin-bottom: 36px; }
.section-heading.compact, .section-heading.centered { display: block; max-width: 760px; }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-heading h2, .split-copy h2, .proof-card.highlight h2, .contact-copy h2 { font-size: clamp(30px, 5vw, 54px); line-height: 1.14; }
.section-heading p:not(.eyebrow), .split-copy p, .proof-card.highlight p, .contact-copy p { color: var(--muted); font-size: 17px; line-height: 1.9; }
.platform-showcase { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 18px; align-items: stretch; }
.console-panel, .dashboard-panel { border: 1px solid var(--line); border-radius: 8px; background: var(--white); box-shadow: 0 16px 48px rgba(8, 49, 63, 0.08); overflow: hidden; }
.console-panel { background: var(--deep); color: var(--white); }
.panel-bar { display: flex; align-items: center; gap: 8px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); padding: 14px 16px; background: rgba(255, 255, 255, 0.06); }
.panel-bar span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255, 255, 255, 0.38); }
.panel-bar strong { margin-left: 8px; color: rgba(255, 255, 255, 0.72); font-size: 13px; }
.terminal-lines { display: grid; gap: 16px; padding: 26px; font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; font-size: 14px; }
.terminal-lines span { display: inline-block; width: 26px; color: #72f1cf; }
.dashboard-panel { padding: 22px; }
.dashboard-header { display: flex; justify-content: space-between; gap: 18px; align-items: start; margin-bottom: 18px; }
.dashboard-header span, .stat-tile span, .chart-tile span, .flow-tile span { color: var(--muted); font-size: 13px; font-weight: 800; }
.dashboard-header strong { display: block; margin-top: 5px; font-size: 24px; }
.dashboard-header em { border-radius: 999px; padding: 7px 10px; background: #e8f8f1; color: var(--green); font-size: 12px; font-style: normal; font-weight: 900; }
.dashboard-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.stat-tile, .chart-tile, .flow-tile { border: 1px solid var(--line); border-radius: 8px; padding: 18px; background: #fbfdfd; }
.stat-tile strong { display: block; margin-top: 12px; font-size: 38px; }
.stat-tile i { display: block; height: 7px; margin-top: 18px; border-radius: 999px; background: linear-gradient(90deg, var(--green), var(--cyan), #d8edf0); }
.chart-tile, .flow-tile { grid-column: 1 / -1; }
.chart-tile svg { width: 100%; height: 128px; margin-top: 14px; }
.chart-tile path:first-child { fill: none; stroke: var(--teal); stroke-linecap: round; stroke-width: 5; }
.chart-tile path:last-child { fill: rgba(22, 183, 189, 0.12); stroke: none; }
.flow-tile div { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; margin-top: 14px; }
.flow-tile b { border-radius: 8px; padding: 12px 8px; background: var(--subtle); font-size: 13px; text-align: center; }
.service-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.service-card, .plan-card, .proof-card, .solution-stack article { border: 1px solid var(--line); border-radius: 8px; background: var(--white); box-shadow: 0 12px 40px rgba(8, 49, 63, 0.06); }
.service-card { min-height: 288px; padding: 24px; }
.icon-box { display: inline-flex; width: 48px; height: 34px; align-items: center; justify-content: center; border-radius: 999px; background: rgba(8, 125, 134, 0.1); color: var(--teal); font-size: 13px; font-weight: 900; }
.service-card h3, .solution-stack h3, .timeline h3, .plan-card h3 { margin-top: 26px; font-size: 22px; line-height: 1.3; }
.service-card p, .solution-stack p, .timeline p, .plan-card p, .proof-card span { margin-top: 14px; color: var(--muted); line-height: 1.78; }
.split-section { display: grid; grid-template-columns: 0.85fr 1.15fr; width: min(1200px, calc(100% - 40px)); gap: clamp(24px, 5vw, 72px); align-items: center; margin: 0 auto; padding: 92px 0; }
.text-link { display: inline-flex; margin-top: 26px; color: var(--teal); font-weight: 900; }
.solution-stack { display: grid; gap: 14px; }
.solution-stack article { padding: 24px; }
.solution-stack article:nth-child(2) { background: var(--deep); color: var(--white); }
.solution-stack article:nth-child(2) p { color: rgba(255, 255, 255, 0.7); }
.solution-stack span { color: var(--teal); font-size: 12px; font-weight: 900; text-transform: uppercase; }
.solution-stack article:nth-child(2) span { color: #72f1cf; }
.timeline { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin: 0; padding: 0; list-style: none; }
.timeline li { min-height: 270px; border: 1px solid var(--line); border-radius: 8px; padding: 24px; background: var(--white); }
.timeline span { display: grid; width: 52px; height: 52px; place-items: center; border-radius: 50%; background: #e8f8f1; color: var(--green); font-weight: 900; }
.proof { display: grid; grid-template-columns: 1.25fr repeat(3, minmax(0, 1fr)); gap: 14px; }
.proof-card { min-height: 220px; padding: 24px; }
.proof-card.highlight { grid-row: span 2; min-height: 454px; background: linear-gradient(135deg, rgba(7, 92, 106, 0.92), rgba(6, 31, 42, 0.94)), radial-gradient(circle at 18% 18%, rgba(117, 245, 212, 0.2), transparent 18rem); color: var(--white); }
.proof-card.highlight .eyebrow { color: #72f1cf; }
.proof-card.highlight p { color: rgba(255, 255, 255, 0.72); }
.proof-card strong { display: block; font-size: 22px; line-height: 1.32; }
.proof-card span { display: block; }
.plan-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.plan-card { display: flex; min-height: 410px; flex-direction: column; padding: 28px; }
.plan-card.featured { border-color: rgba(8, 125, 134, 0.38); background: linear-gradient(180deg, rgba(232, 248, 241, 0.96), #ffffff 38%), var(--white); box-shadow: var(--shadow); }
.plan-card > span { width: fit-content; border-radius: 999px; padding: 7px 10px; background: #e8f8f1; color: var(--teal); font-size: 12px; font-weight: 900; }
.plan-card ul { display: grid; gap: 12px; margin: auto 0 0; padding: 24px 0 0; list-style: none; }
.plan-card li { position: relative; padding-left: 22px; color: var(--muted); line-height: 1.6; }
.plan-card li::before { position: absolute; top: 0.58em; left: 0; width: 8px; height: 8px; border-radius: 50%; background: var(--green); content: ""; }
.faq { display: grid; grid-template-columns: 0.72fr 1.28fr; gap: clamp(24px, 5vw, 72px); }
.faq-list { display: grid; gap: 12px; }
.faq-list details { border: 1px solid var(--line); border-radius: 8px; background: var(--white); overflow: hidden; }
.faq-list summary { cursor: pointer; padding: 20px 22px; font-weight: 900; }
.faq-list p { padding: 0 22px 22px; color: var(--muted); line-height: 1.8; }
.contact-section { width: min(1200px, calc(100% - 40px)); margin: 0 auto; padding: 92px 0; }
.contact-panel { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: clamp(24px, 5vw, 72px); border-radius: 8px; padding: clamp(24px, 5vw, 52px); background: var(--deep); color: var(--white); box-shadow: var(--shadow); }
.contact-copy .eyebrow { color: #72f1cf; }
.contact-copy p { color: rgba(255, 255, 255, 0.74); }
.contact-methods { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.contact-methods a { border: 1px solid rgba(255, 255, 255, 0.2); border-radius: 8px; padding: 12px 14px; background: rgba(255, 255, 255, 0.06); color: var(--white); font-weight: 800; }
.contact-form { display: grid; gap: 18px; border: 1px solid rgba(255, 255, 255, 0.12); border-radius: 8px; padding: clamp(20px, 4vw, 34px); background: rgba(255, 255, 255, 0.08); }
.contact-form label { display: grid; gap: 8px; font-weight: 900; }
.contact-form input, .contact-form textarea { width: 100%; border: 1px solid rgba(255, 255, 255, 0.14); border-radius: 8px; padding: 14px 15px; color: var(--white); line-height: 1.5; background: rgba(255, 255, 255, 0.08); }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: rgba(255, 255, 255, 0.48); }
.contact-form textarea { resize: vertical; }
.contact-form input:focus, .contact-form textarea:focus { border-color: #72f1cf; outline: 3px solid rgba(114, 241, 207, 0.16); }
.contact-form .button { width: 100%; cursor: pointer; }
.form-note { min-height: 22px; color: rgba(255, 255, 255, 0.72); font-size: 14px; line-height: 1.6; }
.site-footer { display: grid; grid-template-columns: 1fr auto; gap: 28px; align-items: start; margin-top: 20px; padding: 42px clamp(20px, 5vw, 72px); background: #041922; color: var(--white); }
.footer-brand .brand-mark { width: 38px; height: 38px; }
.site-footer p { max-width: 360px; margin-top: 14px; color: rgba(255, 255, 255, 0.66); line-height: 1.7; }
.site-footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 18px; color: rgba(255, 255, 255, 0.76); font-weight: 800; }
.copyright { grid-column: 1 / -1; max-width: none; margin: 0; border-top: 1px solid rgba(255, 255, 255, 0.12); padding-top: 22px; font-size: 14px; }
@media (max-width: 1100px) { .service-grid, .timeline, .proof { grid-template-columns: repeat(2, minmax(0, 1fr)); } .proof-card.highlight { grid-column: 1 / -1; grid-row: auto; min-height: 320px; } }
@media (max-width: 920px) { .section-heading, .platform-showcase, .split-section, .faq, .contact-panel, .trust-inner { grid-template-columns: 1fr; } .trust-tags { justify-content: flex-start; } .plan-grid { grid-template-columns: 1fr; } }
@media (max-width: 760px) { .site-header { padding-inline: 20px; } .nav-toggle { display: block; } .site-nav { position: absolute; top: calc(100% + 8px); right: 20px; left: 20px; display: none; flex-direction: column; align-items: stretch; gap: 0; border: 1px solid var(--line); border-radius: 8px; padding: 8px; background: rgba(255, 255, 255, 0.96); color: var(--ink); box-shadow: var(--shadow); } .site-nav.is-open { display: flex; } .site-nav a { padding: 14px 12px; } .hero, .hero-inner { min-height: 860px; } .hero-overlay { background: linear-gradient(180deg, rgba(4, 27, 38, 0.94) 0%, rgba(5, 42, 54, 0.78) 54%, rgba(5, 42, 54, 0.46) 100%), linear-gradient(0deg, rgba(3, 22, 30, 0.8), transparent 42%); } .hero-metrics, .service-grid, .timeline, .proof, .dashboard-grid { grid-template-columns: 1fr; } .section, .split-section, .contact-section { padding: 68px 0; } .chart-tile, .flow-tile { grid-column: auto; } .flow-tile div { grid-template-columns: repeat(2, minmax(0, 1fr)); } .site-footer { grid-template-columns: 1fr; } .site-footer nav { justify-content: flex-start; } }
@media (max-width: 480px) { .brand-text small { display: none; } .hero h1 { font-size: 38px; } .hero-actions .button, .contact-methods a { width: 100%; } }