:root {
  --ink: #0a1c2e;
  --ink-soft: #425568;
  --navy: #061a31;
  --navy-2: #0a2747;
  --blue: #1268ff;
  --blue-light: #eaf2ff;
  --cyan: #20d8c7;
  --cyan-dark: #0d958a;
  --paper: #f5f8fb;
  --line: #dfe7ef;
  --white: #fff;
  --shadow: 0 24px 70px rgba(10, 38, 70, 0.12);
  --radius: 22px;
  --container: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--white);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, p, a, button { overflow-wrap: break-word; }
h1, h2, h3 { hyphens: auto; }
body.dialog-open { overflow: hidden; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; }
.container { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 999; top: -50px; left: 16px; padding: 10px 16px; background: var(--cyan); color: var(--navy); border-radius: 0 0 8px 8px; transition: top .2s; }
.skip-link:focus { top: 0; }

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  width: 100%;
  border-bottom: 1px solid rgba(255,255,255,.1);
  color: var(--white);
  transition: background .25s, box-shadow .25s, color .25s;
}
.site-header.scrolled { color: var(--ink); background: rgba(255,255,255,.94); box-shadow: 0 8px 28px rgba(5,30,55,.08); backdrop-filter: blur(18px); border-color: rgba(7,28,53,.08); }
.nav-wrap { height: 78px; display: flex; align-items: center; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand-official img { display: block; width: 285px; height: auto; }
.brand-english { display: flex; flex-direction: column; color: inherit; line-height: 1; }
.brand-english strong {
  display: inline-flex;
  align-items: baseline;
  font-family: "Segoe Print", "Bradley Hand", "Comic Sans MS", cursive;
  font-size: 34px;
  font-weight: 600;
  letter-spacing: .01em;
  line-height: .9;
  text-transform: lowercase;
  text-shadow: .25px 0 currentColor, 0 .2px currentColor;
}
.brand-pwit { color: #1d4f9a; }
.brand-c { color: #9d1029; margin-left: 1px; }
.brand-english small { max-width: 260px; margin-top: 5px; font-size: 10px; line-height: 1.25; opacity: .72; }
.site-header.scrolled .brand-official img { filter: brightness(0) saturate(100%) invert(10%) sepia(33%) saturate(1501%) hue-rotate(170deg) brightness(90%) contrast(99%); }
.brand-mark { width: 41px; height: 41px; display: grid; place-items: center; }
.brand-mark svg { width: 100%; height: 100%; fill: var(--cyan); }
.brand-mark svg .brand-mark-line { fill: var(--navy); }
.site-header:not(.scrolled) .brand-mark svg .brand-mark-line, .brand-footer .brand-mark svg .brand-mark-line { fill: var(--navy); }
.brand-mark svg circle { fill: var(--white); }
.brand-copy { display: flex; flex-direction: column; line-height: 1; }
.brand-copy strong { font-size: 20px; letter-spacing: .15em; }
.brand-copy small { margin-top: 7px; font-size: 8px; letter-spacing: .14em; opacity: .72; }
.site-nav { margin-left: auto; display: flex; align-items: center; gap: 27px; }
.site-nav a { position: relative; font-size: 14px; color: inherit; opacity: .82; transition: opacity .2s; }
.site-nav a::after { content: ""; position: absolute; height: 2px; width: 0; left: 0; bottom: -9px; background: var(--cyan); transition: width .2s; }
.site-nav a:hover { opacity: 1; }
.site-nav a:hover::after { width: 100%; }
.language-control { margin-left: 8px; display: inline-flex; align-items: center; }
.language-select { min-width: 42px; height: 38px; padding: 0 25px 0 11px; border: 1px solid currentColor; border-radius: 20px; color: inherit; background: transparent; opacity: .9; font-size: 11px; font-weight: 800; cursor: pointer; }
.language-select option { color: var(--ink); background: var(--white); font-weight: 600; }
.language-select:hover, .language-select:focus { opacity: 1; color: var(--cyan); outline: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.nav-toggle { display: none; border: 0; background: transparent; padding: 5px; }
.nav-toggle span { width: 24px; height: 2px; display: block; margin: 5px; background: currentColor; transition: transform .2s, opacity .2s; }

.button { border: 0; display: inline-flex; align-items: center; justify-content: center; gap: 10px; border-radius: 8px; font-weight: 700; transition: transform .2s, background .2s, box-shadow .2s; }
.button:hover { transform: translateY(-2px); }
.button-sm { min-height: 40px; padding: 0 19px; font-size: 13px; }
.button-lg { min-height: 52px; padding: 0 25px; font-size: 15px; }
.button-primary { color: var(--white); background: var(--blue); box-shadow: 0 13px 28px rgba(18,104,255,.25); }
.button-primary:hover { background: #0759e8; }
.button-primary svg { width: 18px; fill: none; stroke: currentColor; stroke-width: 2; }
.button-ghost { color: var(--white); background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.24); backdrop-filter: blur(10px); }
.button-ghost:hover { background: rgba(255,255,255,.12); }
.button-light { color: var(--navy); background: var(--white); }

.section { padding: 116px 0; }
.section-dark { color: var(--white); background: var(--navy); }
.eyebrow { margin-bottom: 20px; color: var(--blue); font-size: 12px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow-light { color: var(--cyan); }
.eyebrow-dot { width: 7px; height: 7px; display: inline-block; margin: 0 10px 1px 0; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 5px rgba(32,216,199,.12); }
.section-heading { margin-bottom: 52px; }
.section-heading h2, .upgrade h2, .ecosystem h2, .about h2, .contact-box h2 { margin: 0; font-size: clamp(32px, 4vw, 48px); line-height: 1.24; letter-spacing: -.04em; }
.section-heading p { margin: 16px 0 0; color: var(--ink-soft); font-size: 16px; line-height: 1.85; }
.heading-split { display: grid; grid-template-columns: 1.15fr .85fr; gap: 100px; align-items: end; }
.heading-split p { margin-bottom: 2px; }
.centered { max-width: 720px; margin-inline: auto; text-align: center; }

.hero { position: relative; min-height: 900px; overflow: hidden; padding-top: 78px; }
.hero-grid { position: absolute; inset: 0; opacity: .2; background-image: linear-gradient(rgba(96,154,211,.18) 1px, transparent 1px), linear-gradient(90deg, rgba(96,154,211,.18) 1px, transparent 1px); background-size: 90px 90px; mask-image: linear-gradient(to right, transparent, #000 50%, transparent); }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(1px); }
.hero-glow-one { width: 680px; height: 680px; top: -330px; right: 8%; background: radial-gradient(circle, rgba(18,104,255,.32), rgba(18,104,255,0) 68%); }
.hero-glow-two { width: 540px; height: 540px; left: -270px; bottom: -300px; background: radial-gradient(circle, rgba(32,216,199,.16), rgba(32,216,199,0) 70%); }
.hero-layout { position: relative; display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 58px; min-height: 705px; padding-top: 55px; }
.hero-copy { position: relative; z-index: 2; padding-bottom: 22px; }
.hero h1 { max-width: 650px; margin: 0; font-size: clamp(47px, 5.5vw, 72px); line-height: 1.13; letter-spacing: -.055em; }
.hero h1 span { color: var(--cyan); }
.hero-lead { max-width: 610px; margin: 27px 0 0; color: rgba(235,244,252,.74); font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; gap: 13px; margin-top: 38px; }
.hero-proof { display: flex; margin-top: 52px; }
.hero-proof div { min-width: 123px; padding: 0 22px; border-left: 1px solid rgba(255,255,255,.15); }
.hero-proof div:first-child { padding-left: 0; border-left: 0; }
.hero-proof strong, .hero-proof span { display: block; }
.hero-proof strong { font-size: 15px; }
.hero-proof span { margin-top: 8px; color: rgba(255,255,255,.48); font-size: 11px; }

.hero-visual { position: relative; z-index: 1; perspective: 1200px; }
.dashboard-shell { overflow: hidden; min-height: 460px; border: 1px solid rgba(121,186,239,.22); border-radius: 15px; background: rgba(6,31,56,.86); box-shadow: 0 45px 100px rgba(0,0,0,.32); transform: rotateY(-2deg) rotateX(1deg); backdrop-filter: blur(16px); }
.dashboard-topbar { height: 48px; padding: 0 16px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(255,255,255,.08); background: rgba(255,255,255,.025); font-size: 10px; color: rgba(255,255,255,.65); }
.dashboard-brand, .dashboard-status { display: flex; align-items: center; gap: 8px; }
.dashboard-brand i { width: 20px; height: 20px; border: 5px solid var(--cyan); transform: rotate(45deg); }
.dashboard-status i { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 5px rgba(32,216,199,.1); }
.dashboard-body { display: flex; min-height: 412px; }
.dashboard-sidebar { width: 49px; padding-top: 25px; display: flex; align-items: center; flex-direction: column; gap: 24px; border-right: 1px solid rgba(255,255,255,.07); }
.dashboard-sidebar span { width: 15px; height: 15px; display: block; border: 1px solid rgba(255,255,255,.28); border-radius: 3px; }
.dashboard-sidebar .active { background: var(--blue); border-color: var(--blue); box-shadow: 0 0 16px rgba(18,104,255,.6); }
.dashboard-content { width: calc(100% - 49px); padding: 28px; }
.dashboard-title { display: flex; justify-content: space-between; align-items: flex-end; }
.dashboard-title small, .dashboard-title strong { display: block; }
.dashboard-title small { color: rgba(255,255,255,.43); font-size: 9px; margin-bottom: 8px; }
.dashboard-title strong { font-size: 20px; }
.dashboard-title > span { color: rgba(255,255,255,.36); font-size: 9px; }
.metric-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 23px; }
.metric-row article { padding: 15px; border: 1px solid rgba(255,255,255,.07); border-radius: 8px; background: rgba(255,255,255,.035); }
.metric-row small, .metric-row strong, .metric-row em { display: block; font-style: normal; }
.metric-row small { color: rgba(255,255,255,.4); font-size: 9px; }
.metric-row strong { margin: 9px 0 5px; color: #eaf7ff; font-size: 18px; }
.metric-row em { color: #f4b964; font-size: 8px; }
.metric-row .up { color: var(--cyan); }
.chart-grid { display: grid; grid-template-columns: 1.65fr .8fr; gap: 10px; margin-top: 10px; }
.trend-card, .ai-card { min-height: 205px; border: 1px solid rgba(255,255,255,.07); border-radius: 8px; background: rgba(255,255,255,.025); }
.trend-card { padding: 15px; }
.card-heading { display: flex; justify-content: space-between; color: rgba(255,255,255,.72); font-size: 9px; }
.card-heading i { font-style: normal; color: rgba(255,255,255,.3); }
.trend-chart { width: 100%; height: 145px; margin-top: 13px; overflow: visible; }
.chart-grid-line { stroke: rgba(255,255,255,.07); stroke-width: 1; }
.chart-area { fill: url(#chartArea); }
.chart-line { fill: none; stroke: var(--cyan); stroke-width: 3; filter: drop-shadow(0 0 7px rgba(32,216,199,.4)); }
.trend-chart circle { fill: var(--cyan); stroke: rgba(32,216,199,.3); stroke-width: 7; }
.ai-card { padding: 17px; text-align: center; }
.ai-orbit { width: 62px; height: 62px; margin: 4px auto 12px; display: grid; place-items: center; border: 1px solid rgba(32,216,199,.25); border-radius: 50%; box-shadow: inset 0 0 18px rgba(32,216,199,.08); }
.ai-orbit::after { content: ""; position: absolute; width: 51px; height: 27px; border: 1px solid var(--cyan); border-radius: 50%; transform: rotate(-35deg); opacity: .45; }
.ai-orbit span { font-weight: 800; color: var(--cyan); }
.ai-card strong { display: block; font-size: 11px; }
.ai-card p { margin: 9px 0 12px; color: rgba(255,255,255,.38); font-size: 8px; line-height: 1.6; }
.ai-card button { border: 1px solid rgba(32,216,199,.3); border-radius: 4px; padding: 7px 13px; color: var(--cyan); background: rgba(32,216,199,.06); font-size: 8px; }
.floating-card { position: absolute; z-index: 2; min-width: 174px; padding: 12px 15px; display: flex; align-items: center; gap: 10px; border: 1px solid rgba(149,202,239,.2); border-radius: 9px; background: rgba(10,42,72,.9); box-shadow: 0 18px 40px rgba(0,0,0,.25); backdrop-filter: blur(14px); }
.floating-card i { width: 25px; height: 25px; display: block; border-radius: 7px; background: linear-gradient(135deg, var(--blue), var(--cyan)); }
.floating-card span, .floating-card strong { display: block; }
.floating-card span { color: rgba(255,255,255,.45); font-size: 8px; }
.floating-card strong { margin-top: 4px; color: var(--white); font-size: 10px; }
.floating-card-one { left: -30px; bottom: 66px; }
.floating-card-two { right: -24px; top: 88px; }
.audience-strip { position: relative; min-height: 115px; display: flex; align-items: center; gap: 60px; border-top: 1px solid rgba(255,255,255,.1); }
.audience-label { color: rgba(255,255,255,.4); font-size: 12px; letter-spacing: .12em; }
.audience-items { display: flex; align-items: center; flex: 1; justify-content: space-between; color: rgba(255,255,255,.73); font-size: 14px; }
.audience-items i { width: 3px; height: 3px; border-radius: 50%; background: var(--cyan); opacity: .55; }

.platform { background: var(--paper); }
.platform-stage { display: grid; grid-template-columns: 290px 1fr; overflow: hidden; min-height: 530px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow); }
.platform-tabs { padding: 18px 0; background: #0a2440; }
.platform-tab { position: relative; width: 100%; min-height: 120px; padding: 25px 30px 22px 66px; border: 0; color: rgba(255,255,255,.53); background: transparent; text-align: left; }
.platform-tab::before { content: ""; position: absolute; left: 0; top: 18px; bottom: 18px; width: 3px; background: transparent; }
.platform-tab span { position: absolute; left: 28px; top: 28px; font-size: 10px; }
.platform-tab strong, .platform-tab small { display: block; }
.platform-tab strong { margin-bottom: 10px; color: rgba(255,255,255,.83); font-size: 16px; }
.platform-tab small { font-size: 11px; }
.platform-tab:hover { color: rgba(255,255,255,.75); background: rgba(255,255,255,.025); }
.platform-tab.active { color: rgba(255,255,255,.78); background: linear-gradient(90deg, rgba(18,104,255,.22), rgba(18,104,255,.03)); }
.platform-tab.active::before { background: var(--cyan); }
.platform-tab.active strong { color: var(--white); }
.platform-panel { padding: 65px 56px; display: grid; grid-template-columns: 1fr .92fr; align-items: center; gap: 36px; }
.panel-number { display: block; margin-bottom: 28px; color: var(--blue); font-weight: 800; font-size: 11px; letter-spacing: .15em; }
.platform-panel h3 { margin: 0; font-size: 31px; letter-spacing: -.03em; }
.platform-panel p { min-height: 86px; margin: 19px 0 24px; color: var(--ink-soft); font-size: 14px; line-height: 1.85; }
.platform-panel ul { display: grid; gap: 13px; margin: 0 0 30px; padding: 0; list-style: none; }
.platform-panel li { position: relative; padding-left: 25px; font-size: 13px; }
.platform-panel li::before { content: "✓"; position: absolute; left: 0; top: -2px; width: 17px; height: 17px; display: grid; place-items: center; border-radius: 50%; color: var(--cyan-dark); background: #dcf8f5; font-size: 10px; font-weight: 900; }
.text-link { padding: 0; border: 0; color: var(--blue); background: transparent; font-weight: 800; font-size: 13px; }
.text-link span { margin-left: 6px; }
.platform-diagram { position: relative; aspect-ratio: 1; max-width: 370px; margin: auto; display: grid; place-items: center; border-radius: 50%; background: radial-gradient(circle, rgba(18,104,255,.08), transparent 67%); }
.diagram-ring { position: absolute; border: 1px dashed #b9cce0; border-radius: 50%; }
.ring-one { inset: 15%; animation: spin 30s linear infinite; }
.ring-two { inset: 30%; border-style: solid; border-color: #dae5f0; }
.diagram-core { position: relative; z-index: 2; width: 126px; height: 126px; display: grid; place-content: center; text-align: center; border: 8px solid #e6f0ff; border-radius: 50%; background: linear-gradient(145deg, #1268ff, #0a4fc7); box-shadow: 0 18px 45px rgba(18,104,255,.3); color: var(--white); }
.diagram-core span { font-size: 12px; color: var(--cyan); font-weight: 900; }
.diagram-core strong { margin-top: 5px; font-size: 14px; line-height: 1.4; }
.diagram-node { position: absolute; width: 66px; height: 66px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: var(--white); box-shadow: 0 10px 30px rgba(10,38,70,.1); color: var(--ink); font-size: 12px; font-weight: 800; }
.node-one { top: 0; left: 50%; transform: translateX(-50%); }
.node-two { top: 23%; right: 2%; }.node-three { bottom: 15%; right: 7%; }.node-four { bottom: 0; left: 50%; transform: translateX(-50%); }.node-five { bottom: 15%; left: 7%; }.node-six { top: 23%; left: 2%; }
@keyframes spin { to { transform: rotate(360deg); } }

.scenarios { background: var(--white); }
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.scenario-card { position: relative; overflow: hidden; min-height: 310px; padding: 34px; border: 1px solid var(--line); border-radius: 16px; transition: transform .25s, box-shadow .25s, border-color .25s; }
.scenario-card:hover { transform: translateY(-6px); border-color: #c9d7e6; box-shadow: 0 22px 52px rgba(10,38,70,.1); }
.scenario-card.feature { grid-row: span 2; min-height: 638px; padding-top: 38px; color: var(--white); background: linear-gradient(155deg, #0a2b4d, #06182d); border: 0; }
.scenario-card.feature::after { content: ""; position: absolute; width: 300px; height: 300px; right: -130px; bottom: -120px; border: 1px solid rgba(32,216,199,.16); border-radius: 50%; box-shadow: 0 0 0 55px rgba(32,216,199,.04), 0 0 0 110px rgba(32,216,199,.025); }
.scenario-index { position: absolute; right: 25px; top: 23px; color: #b3c2d1; font-size: 10px; font-weight: 800; }
.feature .scenario-index { color: rgba(255,255,255,.32); }
.scenario-icon { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 11px; color: var(--blue); background: var(--blue-light); font-size: 17px; font-weight: 900; }
.scenario-icon:not(.icon-radar) { font-size: 9px; letter-spacing: .04em; }
.feature .scenario-icon { width: 110px; height: 110px; margin: 60px auto 76px; border: 1px solid rgba(32,216,199,.27); border-radius: 50%; background: rgba(32,216,199,.04); color: var(--cyan); }
.icon-radar { position: relative; box-shadow: 0 0 0 24px rgba(32,216,199,.035), 0 0 0 47px rgba(32,216,199,.025); }
.icon-radar::before, .icon-radar::after { content: ""; position: absolute; border: 1px solid rgba(32,216,199,.4); border-radius: 50%; }
.icon-radar::before { inset: 17px; }.icon-radar::after { inset: 35px; }
.icon-radar i { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 18px var(--cyan); }
.scenario-card h3 { margin: 25px 0 13px; font-size: 21px; }
.scenario-card p { margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.8; }
.feature h3 { font-size: 26px; }.feature p { color: rgba(255,255,255,.61); font-size: 14px; }
.scenario-card > a { position: absolute; left: 34px; bottom: 32px; color: var(--blue); font-size: 12px; font-weight: 800; }
.scenario-card > a span { margin-left: 8px; }
.scenario-tags { position: absolute; z-index: 2; left: 34px; bottom: 38px; display: flex; flex-wrap: wrap; gap: 7px; }
.scenario-tags span { padding: 7px 10px; border: 1px solid rgba(32,216,199,.19); border-radius: 20px; color: var(--cyan); background: rgba(32,216,199,.06); font-size: 10px; }

.standards { position: relative; overflow: hidden; background: #f5f8fb; }
.standards::before { content: ""; position: absolute; width: 560px; height: 560px; right: -300px; top: 50px; border: 1px solid rgba(18,104,255,.09); border-radius: 50%; box-shadow: 0 0 0 75px rgba(18,104,255,.025), 0 0 0 150px rgba(18,104,255,.018); }
.standards .container { position: relative; }
.standard-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.standard-card { min-height: 370px; padding: 36px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.9); transition: transform .25s, box-shadow .25s, border-color .25s; }
.standard-card:hover { transform: translateY(-5px); border-color: #c9d9e9; box-shadow: 0 22px 52px rgba(10,38,70,.09); }
.standard-card > span { color: var(--blue); font-size: 9px; font-weight: 900; letter-spacing: .13em; }
.standard-card h3 { margin: 30px 0 16px; font-size: 22px; line-height: 1.45; letter-spacing: -.02em; }
.standard-card p { margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.85; }
.standard-card ul { margin: 28px 0 0; padding: 22px 0 0; display: flex; flex-wrap: wrap; gap: 9px 20px; border-top: 1px solid var(--line); list-style: none; }
.standard-card li { position: relative; padding-left: 15px; color: #617487; font-size: 10px; }
.standard-card li::before { content: ""; position: absolute; left: 0; top: 4px; width: 5px; height: 5px; border-radius: 50%; background: var(--cyan); }
.standard-card-wide { grid-column: 1 / -1; min-height: 300px; padding-right: 25%; background: linear-gradient(120deg, #fff, #edf5ff); }
.seo-faq { margin-top: 52px; display: grid; grid-template-columns: .55fr 1.45fr; gap: 65px; padding: 48px; border-radius: 18px; color: var(--white); background: #0a2847; }
.seo-faq-heading span { color: var(--cyan); font-size: 9px; font-weight: 900; letter-spacing: .17em; }
.seo-faq-heading h3 { margin: 15px 0 0; font-size: 25px; line-height: 1.45; }
.seo-faq-list details { border-bottom: 1px solid rgba(255,255,255,.11); }
.seo-faq-list details:first-child { border-top: 1px solid rgba(255,255,255,.11); }
.seo-faq-list summary { position: relative; padding: 20px 40px 20px 0; color: rgba(255,255,255,.88); cursor: pointer; list-style: none; font-size: 13px; font-weight: 700; line-height: 1.5; }
.seo-faq-list summary::-webkit-details-marker { display: none; }
.seo-faq-list summary i { position: absolute; right: 4px; top: 18px; color: var(--cyan); font-size: 19px; font-style: normal; font-weight: 400; transition: transform .2s; }
.seo-faq-list details[open] summary i { transform: rotate(45deg); }
.seo-faq-list details p { margin: -2px 0 20px; padding-right: 35px; color: rgba(255,255,255,.5); font-size: 11px; line-height: 1.8; }

.client-section { padding: 92px 0 110px; background: var(--paper); }
.client-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 80px; align-items: center; }
.client-copy h2 { margin: 0; font-size: clamp(30px, 3.4vw, 43px); line-height: 1.3; letter-spacing: -.04em; }
.client-copy p { margin: 22px 0 17px; color: var(--ink-soft); font-size: 14px; line-height: 1.85; }
.client-copy small { color: #8b9aaa; font-size: 10px; }
.client-wall { display: grid; grid-template-columns: repeat(3, 1fr); overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: var(--white); }
.client-institution { min-height: 172px; padding: 22px 16px 18px; display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 13px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background .2s, transform .2s; }
.client-institution:nth-child(3n) { border-right: 0; }
.client-institution:nth-last-child(-n+3) { border-bottom: 0; }
.client-institution:hover { position: relative; z-index: 1; background: #f3f8ff; transform: translateY(-2px); }
.client-logo-box { width: 100%; height: 90px; display: grid; place-items: center; }
.client-logo-box img { display: block; width: auto; height: auto; max-width: 92%; max-height: 86px; object-fit: contain; transition: transform .2s; }
.client-logo-en { display: none; color: #2b5c99; font-size: 12px; font-weight: 800; letter-spacing: .08em; line-height: 1.35; text-align: center; }
.client-institution:hover .client-logo-box img { transform: scale(1.035); }
.client-institution strong { color: #526578; font-size: 11px; font-weight: 700; line-height: 1.55; text-align: center; }

.upgrade { position: relative; overflow: hidden; padding: 120px 0; color: var(--white); background: #0a2847; }
.upgrade::before { content: ""; position: absolute; width: 640px; height: 640px; left: -300px; bottom: -360px; border-radius: 50%; background: radial-gradient(circle, rgba(32,216,199,.16), transparent 68%); }
.upgrade-layout { position: relative; display: grid; grid-template-columns: .85fr 1.15fr; gap: 100px; align-items: center; }
.upgrade-copy > p { max-width: 500px; margin: 24px 0 32px; color: rgba(255,255,255,.65); font-size: 15px; line-height: 1.9; }
.upgrade-points { display: grid; gap: 22px; margin-bottom: 38px; }
.upgrade-points > div { display: flex; gap: 18px; }
.upgrade-points span { flex: 0 0 auto; width: 32px; height: 32px; display: grid; place-items: center; border-radius: 50%; color: var(--cyan); background: rgba(32,216,199,.1); font-size: 10px; font-weight: 800; }
.upgrade-points p { margin: 0; color: rgba(255,255,255,.48); font-size: 12px; line-height: 1.7; }
.upgrade-points strong { display: block; color: var(--white); font-size: 14px; }
.upgrade-path { border: 1px solid rgba(255,255,255,.12); border-radius: 18px; background: rgba(255,255,255,.04); box-shadow: 0 30px 60px rgba(0,0,0,.16); backdrop-filter: blur(12px); }
.path-header { padding: 28px 32px; border-bottom: 1px solid rgba(255,255,255,.09); }
.path-header span, .path-header strong { display: block; }.path-header span { margin-bottom: 9px; color: var(--cyan); font-size: 9px; letter-spacing: .17em; }.path-header strong { font-size: 18px; }
.path-list { padding: 12px 28px; }
.path-list article { position: relative; min-height: 79px; display: grid; grid-template-columns: 38px 1fr auto; align-items: center; gap: 14px; border-bottom: 1px solid rgba(255,255,255,.07); }
.path-list article:last-child { border-bottom: 0; }
.path-list article > span { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid rgba(32,216,199,.25); border-radius: 7px; color: var(--cyan); font-size: 9px; }
.path-list article > div strong, .path-list article > div small { display: block; }.path-list article > div strong { margin-bottom: 7px; font-size: 13px; }.path-list article > div small { color: rgba(255,255,255,.38); font-size: 10px; }.path-list em { color: rgba(255,255,255,.35); font-size: 10px; font-style: normal; }
.path-footer { padding: 19px 30px; display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.44); background: rgba(255,255,255,.025); font-size: 10px; }.path-footer i { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 5px rgba(32,216,199,.08); }

.trust { background: var(--paper); }
.trust-grid { display: grid; grid-template-columns: 1.35fr 1fr 1fr; gap: 16px; }
.trust-main, .trust-card { border: 1px solid var(--line); border-radius: 16px; background: var(--white); }
.trust-main { grid-row: span 2; overflow: hidden; min-height: 510px; padding: 42px; display: flex; flex-direction: column; justify-content: flex-end; }
.trust-main > div:last-child > span { color: var(--blue); font-size: 9px; font-weight: 800; letter-spacing: .17em; }
.trust-main h3 { margin: 12px 0; font-size: 24px; }.trust-main p { margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.85; }
.trust-visual { position: relative; flex: 1; display: grid; place-items: center; }
.shield { position: relative; z-index: 2; width: 120px; height: 140px; display: grid; place-items: center; clip-path: polygon(50% 0, 92% 17%, 88% 69%, 50% 100%, 12% 69%, 8% 17%); background: linear-gradient(150deg, var(--blue), #073888); box-shadow: 0 20px 50px rgba(18,104,255,.25); }
.shield::before { content: ""; position: absolute; inset: 7px; clip-path: inherit; background: #0d2a4a; }.shield span { position: relative; display: grid; place-items: center; color: var(--cyan); font-weight: 900; letter-spacing: .08em; }.shield span b { font-size: 25px; line-height: 1; }.shield span small { margin-top: 7px; color: rgba(255,255,255,.72); font-size: 9px; letter-spacing: .14em; white-space: nowrap; }
.shield-line { position: absolute; width: 75%; height: 1px; background: linear-gradient(90deg, transparent, #9fc3e6, transparent); }.line-a { transform: rotate(25deg); }.line-b { transform: rotate(-25deg); }
.security-dot { position: absolute; width: 9px; height: 9px; border: 2px solid var(--white); border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 6px rgba(32,216,199,.1); }.dot-a { top: 22%; left: 12%; }.dot-b { top: 17%; right: 12%; }.dot-c { bottom: 25%; left: 17%; }.dot-d { right: 18%; bottom: 22%; }
.trust-card { min-height: 246px; padding: 29px; transition: transform .2s, box-shadow .2s; }.trust-card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(10,38,70,.08); }.trust-card > span { color: var(--blue); font-size: 10px; font-weight: 800; }.trust-card h3 { margin: 51px 0 13px; font-size: 20px; }.trust-card p { margin: 0; color: var(--ink-soft); font-size: 12px; line-height: 1.75; }

.ecosystem { padding-bottom: 78px; background: var(--white); }
.ecosystem-box { position: relative; overflow: hidden; padding: 70px; display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; border-radius: 22px; color: var(--white); background: linear-gradient(135deg, #0b2d4e, #06182d); }
.ecosystem-box::before { content: ""; position: absolute; width: 480px; height: 480px; left: -220px; bottom: -300px; border: 1px solid rgba(32,216,199,.16); border-radius: 50%; box-shadow: 0 0 0 70px rgba(32,216,199,.025), 0 0 0 140px rgba(32,216,199,.018); }
.ecosystem-copy { position: relative; z-index: 1; align-self: center; }.ecosystem h2 { font-size: clamp(31px, 3.8vw, 45px); }.ecosystem-copy p { margin: 24px 0 0; color: rgba(255,255,255,.58); font-size: 14px; line-height: 1.85; }
.ecosystem-paths { position: relative; z-index: 1; display: grid; gap: 10px; }
.ecosystem-paths button { min-height: 88px; padding: 18px 22px; display: grid; grid-template-columns: 1fr auto; align-items: center; border: 1px solid rgba(255,255,255,.1); border-radius: 11px; color: var(--white); background: rgba(255,255,255,.045); text-align: left; transition: background .2s, border-color .2s; }
.ecosystem-paths button:hover { background: rgba(255,255,255,.08); border-color: rgba(32,216,199,.25); }
.ecosystem-paths button span, .ecosystem-paths button small { display: block; }.ecosystem-paths button span { margin-bottom: 8px; font-size: 14px; font-weight: 800; }.ecosystem-paths button small { grid-column: 1; color: rgba(255,255,255,.38); font-size: 10px; }.ecosystem-paths button i { grid-column: 2; grid-row: 1 / span 2; color: var(--cyan); font-style: normal; font-size: 20px; }

.about { padding-top: 80px; }
.about-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 100px; }
.about-lead { margin: 3px 0 45px; font-size: 18px; line-height: 1.9; color: var(--ink-soft); }
.about-values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }.about-values div { padding: 24px 20px; border-top: 2px solid var(--line); }.about-values span, .about-values strong, .about-values small { display: block; }.about-values span { color: var(--blue); font-size: 9px; font-weight: 800; }.about-values strong { margin: 26px 0 8px; font-size: 18px; }.about-values small { color: #8291a0; font-size: 11px; }
.contact-section { padding: 0 0 110px; }
.contact-box { padding: 54px 60px; display: flex; align-items: center; justify-content: space-between; gap: 50px; border-radius: 18px; background: #eef4fb; }
.contact-box > div { max-width: 700px; }.contact-box > div > span { color: var(--blue); font-size: 9px; font-weight: 900; letter-spacing: .18em; }.contact-box h2 { margin-top: 13px; font-size: 35px; }.contact-box p { margin: 15px 0 0; color: var(--ink-soft); font-size: 13px; line-height: 1.75; }

.site-footer { color: rgba(255,255,255,.7); background: #06172a; }
.footer-main { padding: 65px 0 50px; display: grid; grid-template-columns: 1.1fr .9fr .65fr; gap: 90px; }
.brand-footer { color: var(--white); }.footer-brand p { margin: 22px 0 0; color: rgba(255,255,255,.4); font-size: 12px; }
.brand-footer img { width: 300px; filter: none !important; }
.footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 55px; }.footer-links div, .footer-contact { display: flex; flex-direction: column; align-items: flex-start; gap: 14px; }.footer-links strong, .footer-contact strong { margin-bottom: 6px; color: var(--white); font-size: 13px; }.footer-links a, .footer-contact { font-size: 11px; }.footer-links a { color: rgba(255,255,255,.45); }.footer-links a:hover, .footer-contact a:hover { color: var(--cyan); }
.footer-contact p { margin: 2px 0 0; color: rgba(255,255,255,.37); line-height: 1.75; }
.footer-bottom { min-height: 65px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.08); color: rgba(255,255,255,.31); font-size: 10px; }
.footer-filing { display: flex; align-items: center; gap: 20px; }
.footer-filing a { transition: color .2s; }
.footer-filing a:hover { color: var(--cyan); }
.filing-english { display: none; }

.language-non-zh .client-logo-box img { display: none; }
.language-non-zh .client-logo-en { display: block; }
.language-non-zh .filing-original { display: none; }
.language-non-zh .filing-english { display: inline; }
.police-filing { display: inline-flex; align-items: center; gap: 5px; }
.police-filing img { width: auto; height: 16px; }

.contact-dialog { width: min(92vw, 620px); max-height: 90vh; padding: 0; overflow: auto; border: 0; border-radius: 18px; color: var(--ink); box-shadow: 0 40px 120px rgba(0,0,0,.38); }
.contact-dialog::backdrop { background: rgba(2,13,25,.72); backdrop-filter: blur(6px); }
.dialog-close { position: absolute; z-index: 2; top: 17px; right: 19px; width: 36px; height: 36px; display: grid; place-items: center; border: 0; border-radius: 50%; color: var(--ink-soft); background: #edf2f7; font-size: 23px; }
.dialog-heading { padding: 40px 46px 25px; background: var(--paper); }.dialog-heading > span { color: var(--blue); font-size: 9px; font-weight: 900; letter-spacing: .17em; }.dialog-heading h2 { margin: 10px 0 9px; font-size: 28px; }.dialog-heading p { margin: 0; max-width: 480px; color: var(--ink-soft); font-size: 11px; line-height: 1.7; }
.contact-dialog form { padding: 27px 46px 22px; display: grid; grid-template-columns: 1fr 1fr; gap: 17px; }.contact-dialog label { display: grid; gap: 8px; color: var(--ink); font-size: 11px; font-weight: 700; }.contact-dialog label:nth-child(4), .dialog-submit, .form-feedback { grid-column: 1 / -1; }.contact-dialog input, .contact-dialog select, .contact-dialog textarea { width: 100%; border: 1px solid var(--line); border-radius: 7px; padding: 12px 13px; color: var(--ink); background: var(--white); outline: none; resize: vertical; font-size: 12px; }.contact-dialog input:focus, .contact-dialog select:focus, .contact-dialog textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(18,104,255,.08); }.dialog-submit { margin-top: 2px; }.form-feedback { min-height: 18px; margin: -5px 0 0; color: var(--cyan-dark); text-align: center; font-size: 11px; }
.dialog-direct { padding: 18px 46px 24px; display: flex; gap: 20px; align-items: center; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 11px; }.dialog-direct span { margin-right: auto; }.dialog-direct a { color: var(--blue); font-weight: 700; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay { transition-delay: .12s; }

@media (max-width: 1050px) {
  .site-nav { gap: 18px; }.site-nav a { font-size: 12px; }.nav-cta { display: none; }.language-control { margin-left: 0; }
  .hero { min-height: auto; }.hero-layout { grid-template-columns: 1fr; padding: 125px 0 80px; }.hero-copy { max-width: 720px; }.hero-visual { max-width: 760px; width: 100%; margin: 0 auto; }.audience-strip { margin-top: 20px; }
  .heading-split { gap: 55px; }.platform-panel { padding: 55px 35px; }.upgrade-layout { gap: 55px; }.ecosystem-box { padding: 55px; gap: 50px; }.about-layout { gap: 60px; }
}

@media (max-width: 800px) {
  .container { width: min(calc(100% - 32px), var(--container)); }.section { padding: 82px 0; }
  .nav-wrap { height: 68px; }.site-nav { position: fixed; inset: 68px 0 auto 0; padding: 16px 22px 25px; display: none; flex-direction: column; align-items: stretch; gap: 0; color: var(--ink); background: rgba(255,255,255,.98); box-shadow: 0 20px 30px rgba(5,30,55,.12); }.site-nav.open { display: flex; }.site-nav a { padding: 14px 4px; border-bottom: 1px solid var(--line); font-size: 14px; }.nav-toggle { margin-left: auto; display: block; color: inherit; }.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }.nav-toggle.active span:nth-child(2) { opacity: 0; }.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }.language-control { flex: 0 0 auto; }
  .brand-mark { width: 36px; height: 36px; }.brand-copy strong { font-size: 18px; }.brand-official img { width: 245px; }.brand-english strong { font-size: 27px; }.brand-english small { max-width: 190px; font-size: 8px; }
  .hero-layout { padding-top: 110px; gap: 65px; }.hero h1 { font-size: clamp(43px, 10.5vw, 62px); }.hero-lead { font-size: 15px; }.hero-proof { flex-wrap: wrap; gap: 24px 0; }.dashboard-shell { min-width: 700px; transform: scale(.78); transform-origin: left top; }.hero-visual { height: 390px; overflow: hidden; }.floating-card { display: none; }.audience-strip { padding: 28px 0; display: block; }.audience-label { display: block; margin-bottom: 22px; }.audience-items { flex-wrap: wrap; gap: 18px 22px; justify-content: flex-start; }.audience-items i { display: none; }
  .heading-split { grid-template-columns: 1fr; gap: 0; }.heading-split p { margin-top: 20px; }.platform-stage { grid-template-columns: 1fr; }.platform-tabs { padding: 0; display: grid; grid-template-columns: 1fr 1fr; }.platform-tab { min-height: 100px; padding: 23px 18px 18px 50px; }.platform-tab span { left: 19px; top: 25px; }.platform-tab::before { top: auto; bottom: 0; left: 16px; right: 16px; width: auto; height: 3px; }.platform-panel { grid-template-columns: 1fr; }.platform-diagram { max-width: 330px; width: 100%; }.platform-panel p { min-height: 0; }
  .scenario-grid { grid-template-columns: 1fr 1fr; }.scenario-card.feature { grid-row: span 2; }.seo-faq { grid-template-columns: 1fr; gap: 30px; }.client-layout { grid-template-columns: 1fr; gap: 42px; }.client-wall { grid-template-columns: repeat(3, 1fr); }.upgrade-layout { grid-template-columns: 1fr; }.trust-grid { grid-template-columns: 1fr 1fr; }.trust-main { grid-column: 1 / -1; grid-row: auto; min-height: 480px; }.ecosystem-box { grid-template-columns: 1fr; }.about-layout { grid-template-columns: 1fr; gap: 35px; }.contact-box { padding: 45px; align-items: flex-start; flex-direction: column; }.footer-main { grid-template-columns: 1fr 1fr; }.footer-contact { grid-column: 1 / -1; }.footer-bottom { padding: 18px 0; align-items: flex-start; gap: 12px; }.footer-filing { align-items: flex-end; flex-direction: column; gap: 8px; }
}

@media (max-width: 540px) {
  .container { width: min(calc(100% - 24px), var(--container)); }.section { padding: 68px 0; }.section-heading { margin-bottom: 36px; }.section-heading h2, .upgrade h2, .ecosystem h2, .about h2 { font-size: 32px; }.eyebrow { margin-bottom: 15px; }
  .brand-official img { width: 214px; }.hero-layout { padding: 100px 0 48px; }.hero h1 { font-size: 42px; }.hero-lead { margin-top: 22px; }.hero-actions { align-items: stretch; flex-direction: column; }.hero-actions .button { width: 100%; }.hero-proof { margin-top: 37px; }.hero-proof div { width: 50%; padding: 0 13px; }.hero-proof div:nth-child(3) { padding-left: 0; border-left: 0; }.hero-visual { height: 285px; }.dashboard-shell { transform: scale(.56); }.audience-strip { min-height: 0; }.brand-english strong { font-size: 23px; }.brand-english small { max-width: 155px; font-size: 7px; }
  .platform-tabs { grid-template-columns: 1fr; }.platform-tab { min-height: 90px; }.platform-panel { padding: 38px 22px; }.platform-panel h3 { font-size: 25px; }.platform-diagram { transform: scale(.86); margin: -10px auto; }
  .scenario-grid { grid-template-columns: 1fr; }.scenario-card, .scenario-card.feature { min-height: 320px; grid-row: auto; }.scenario-card.feature { min-height: 500px; }.feature .scenario-icon { margin: 40px auto 62px; }.scenario-tags { bottom: 28px; }.standard-grid { grid-template-columns: 1fr; }.standard-card, .standard-card-wide { grid-column: auto; min-height: auto; padding: 29px 23px; }.standard-card-wide { padding-right: 23px; }.seo-faq { margin-top: 35px; padding: 32px 23px; }.seo-faq-heading h3 { font-size: 22px; }.seo-faq-list summary { font-size: 12px; }.client-section { padding: 70px 0; }.client-wall { grid-template-columns: 1fr 1fr; }.client-institution { min-height: 145px; padding: 16px 10px 14px; }.client-institution:nth-child(3n) { border-right: 1px solid var(--line); }.client-institution:nth-child(2n) { border-right: 0; }.client-institution:nth-last-child(-n+3) { border-bottom: 1px solid var(--line); }.client-institution:last-child { border-bottom: 0; }.client-logo-box { height: 76px; }.client-logo-box img { max-height: 72px; }.client-institution strong { font-size: 10px; }
  .upgrade { padding: 75px 0; }.upgrade-layout { gap: 45px; }.path-header { padding: 24px 20px; }.path-list { padding: 10px 16px; }.path-list article { grid-template-columns: 34px 1fr; }.path-list em { display: none; }.path-footer { padding: 18px 20px; }
  .trust-grid { grid-template-columns: 1fr; }.trust-main { grid-column: auto; min-height: 510px; padding: 29px; }.trust-card { min-height: 220px; }.trust-card h3 { margin-top: 40px; }
  .ecosystem { padding-bottom: 56px; }.ecosystem-box { padding: 44px 24px; gap: 40px; }.ecosystem-paths button { padding: 16px; }
  .about { padding-top: 56px; }.about-values { grid-template-columns: 1fr; }.about-values div { display: grid; grid-template-columns: 36px 75px 1fr; align-items: center; padding: 17px 5px; }.about-values strong { margin: 0; }.about-values small { text-align: right; }.contact-section { padding-bottom: 70px; }.contact-box { padding: 35px 24px; }.contact-box .button { width: 100%; }
  .footer-main { grid-template-columns: 1fr; gap: 40px; }.footer-links { gap: 25px; }.footer-contact { grid-column: auto; }.footer-bottom { padding: 20px 0; align-items: flex-start; flex-direction: column; gap: 10px; }.footer-filing { align-items: flex-start; }
  .dialog-heading, .contact-dialog form, .dialog-direct { padding-left: 22px; padding-right: 22px; }.contact-dialog form { grid-template-columns: 1fr; }.contact-dialog label:nth-child(4), .dialog-submit, .form-feedback { grid-column: auto; }.dialog-direct { align-items: flex-start; flex-direction: column; gap: 8px; }.dialog-direct span { margin-bottom: 4px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}