@import url("misans.css");
@font-face { font-family: "Noto Sans SC"; src: url("noto-sans-sc.woff2") format("woff2"); font-style: normal; font-weight: 100 900; font-display: block; }
@font-face { font-family: "Noto Serif SC"; src: url("noto-serif-sc.woff2") format("woff2"); font-style: normal; font-weight: 100 900; font-display: block; }
:root {
  --paper: #f4f3ef;
  --paper-2: #ecebe5;
  --ink: #111214;
  --muted: #666a72;
  --line: rgba(17, 18, 20, 0.15);
  --line-strong: rgba(17, 18, 20, 0.32);
  --accent: #275ef3;
  --accent-soft: #e6ecff;
  --white: #ffffff;
  --max: 1240px;
  --gutter: clamp(20px, 4vw, 64px);
  --header-h: 76px;
  --serif: "MiSans VF", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --sans: "MiSans VF", "Noto Sans SC", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  --mono: "MiSans VF", "Noto Sans SC", monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
body.nav-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
img, svg { display: block; max-width: 100%; }
::selection { background: var(--accent); color: var(--white); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.container { width: min(100% - (var(--gutter) * 2), var(--max)); margin-inline: auto; }
.section { padding: clamp(70px, 9vw, 132px) 0; border-top: 1px solid var(--line); }
.section-tight { padding: clamp(52px, 7vw, 92px) 0; }
.eyebrow { margin: 0 0 14px; color: var(--accent); font: 600 11px/1.2 var(--mono); letter-spacing: .14em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; letter-spacing: -.035em; }
h1 { font-size: clamp(48px, 7.3vw, 94px); line-height: .98; }
h2 { font-size: clamp(32px, 4.4vw, 60px); line-height: 1.04; }
h3 { font-size: clamp(22px, 2.2vw, 31px); line-height: 1.15; }
p { color: var(--muted); }
.lead { max-width: 760px; color: #34363b; font-size: clamp(18px, 1.8vw, 24px); line-height: 1.55; }
.small { font-size: 13px; }
.mono { font-family: var(--mono); }
.link-arrow { display: inline-flex; gap: 9px; align-items: center; border-bottom: 1px solid currentColor; padding-bottom: 3px; font-weight: 700; }
.link-arrow:hover { color: var(--accent); }
.skip-link { position: fixed; z-index: 999; top: 10px; left: 10px; padding: 10px 14px; background: var(--ink); color: var(--white); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.site-header { position: sticky; z-index: 100; top: 0; height: var(--header-h); border-bottom: 1px solid var(--line); background: rgba(244,243,239,.92); backdrop-filter: blur(18px); }
.site-header-inner { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 28px; width: min(100% - (var(--gutter) * 2), var(--max)); height: 100%; margin-inline: auto; }
.brand { display: inline-flex; align-items: center; gap: 12px; font: 700 15px/1 var(--serif); letter-spacing: -.02em; }
.brand-mark, .brand-logo { width: 34px; height: 34px; object-fit: contain; }
.site-nav { display: flex; align-items: center; justify-content: center; gap: clamp(16px, 2.2vw, 34px); }
.site-nav a { color: #555960; font-size: 14px; transition: color .2s ease; }
.site-nav a:hover, .site-nav a.active { color: var(--ink); }
.site-nav a.active { position: relative; }
.site-nav a.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -29px; height: 2px; background: var(--accent); }
.header-tools { display:flex; align-items:center; justify-self:end; gap:10px; }
.lang-toggle { min-height:40px; min-width:48px; padding:0 12px; border:1px solid var(--line-strong); background:transparent; color:var(--ink); cursor:pointer; font-weight:700; }
.lang-toggle:hover { border-color:var(--accent); color:var(--accent); }
.header-cta { display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: 0 17px; border: 1px solid var(--ink); font-size: 13px; font-weight: 700; transition: .2s ease; }
.header-cta:hover { background: var(--ink); color: var(--white); }
.nav-toggle { display: none; border: 0; background: transparent; color: var(--ink); padding: 8px; }
.hero { padding: clamp(54px, 8vw, 110px) 0 clamp(60px, 8vw, 112px); }
.home-hero-grid { display: grid; grid-template-columns: minmax(0, 1.03fr) minmax(360px, .97fr); gap: clamp(40px, 6vw, 90px); align-items: end; }
.hero-title-accent { color: var(--accent); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 22px; border: 1px solid var(--ink); font-size: 14px; font-weight: 700; transition: .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--ink); color: var(--white); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); }
.btn-secondary:hover { background: var(--ink); color: var(--white); }
.btn-blue { background: var(--accent); border-color: var(--accent); color: var(--white); }
.btn-blue:hover { background: var(--ink); border-color: var(--ink); }
.architecture-figure { position: relative; margin: 0; padding: 18px; border: 1px solid var(--line-strong); background: #f8f7f3; }
.architecture-figure::before { content: "SYSTEM ARCHITECTURE / 01"; position: absolute; top: -25px; left: 0; color: var(--muted); font: 10px/1 var(--mono); letter-spacing: .1em; }
.architecture-figure figcaption { display: flex; justify-content: space-between; gap: 12px; padding-top: 12px; color: var(--muted); font: 11px/1.4 var(--mono); }
.hero-note { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 26px; border: 1px solid var(--line); background: var(--line); }
.hero-note div { padding: 16px; background: var(--paper); }
.hero-note strong { display: block; margin-bottom: 4px; font: 500 22px/1.1 var(--serif); }
.hero-note span { color: var(--muted); font-size: 12px; }
.metric-band { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper-2); }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.metric { min-height: 170px; padding: 28px; border-left: 1px solid var(--line); }
.metric:first-child { border-left: 0; }
.metric-index { display: block; margin-bottom: 28px; color: var(--accent); font: 11px/1 var(--mono); }
.metric strong { display: block; margin-bottom: 8px; font: 500 clamp(27px, 3vw, 43px)/1 var(--serif); letter-spacing: -.03em; }
.metric span:last-child { color: var(--muted); font-size: 13px; }
.section-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .62fr); gap: 40px; align-items: end; margin-bottom: 44px; }
.section-head p { margin-bottom: 0; }
.two-col { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.three-col { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.four-col { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.card { position: relative; min-height: 250px; padding: 28px; border: 1px solid var(--line); background: rgba(255,255,255,.28); transition: border-color .2s ease, transform .2s ease, background .2s ease; }
.card:hover { transform: translateY(-4px); border-color: var(--accent); background: var(--white); }
.card-number { display: block; margin-bottom: 60px; color: var(--accent); font: 700 11px/1 var(--mono); }
.card p { margin-bottom: 0; }
.card ul { margin: 18px 0 0; padding: 0; list-style: none; color: var(--muted); font-size: 14px; }
.card li { position: relative; padding: 7px 0 7px 17px; border-top: 1px solid var(--line); }
.card li::before { content: ""; position: absolute; top: 15px; left: 0; width: 5px; height: 5px; background: var(--accent); }
.business-card { min-height: 320px; }
.business-card h3 { max-width: 320px; margin-bottom: 58px; }
.tag { display: inline-flex; align-items: center; min-height: 25px; margin-bottom: 20px; padding: 0 9px; border: 1px solid var(--line-strong); color: var(--muted); font: 10px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.tag-blue { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.tech-rail { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line-strong); }
.tech-rail article { padding: 30px; border-left: 1px solid var(--line); }
.tech-rail article:first-child { border-left: 0; }
.tech-rail h3 { margin-bottom: 26px; }
.tech-rail p { margin-bottom: 0; }
.page-hero { padding: clamp(70px, 10vw, 150px) 0 clamp(54px, 7vw, 90px); border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 980px; font-size: clamp(45px, 7vw, 86px); }
.page-hero .lead { margin-top: 28px; }
.company-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .52fr); gap: clamp(40px, 7vw, 96px); align-items: center; }
.company-logo-frame { display: grid; min-height: 360px; place-items: center; padding: 28px; border: 1px solid var(--line); background: rgba(255,255,255,.52); }
.company-logo-frame img { width: min(100%, 330px); max-height: 360px; object-fit: contain; }
.breadcrumb { margin-bottom: 42px; color: var(--muted); font: 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.feature-list { border-top: 1px solid var(--line-strong); }
.feature-row { display: grid; grid-template-columns: 90px minmax(0, .84fr) minmax(0, 1.16fr); gap: 28px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.feature-row .index { color: var(--accent); font: 12px/1 var(--mono); }
.feature-row h3 { margin: 0; }
.feature-row p { margin: 0; }
.product-card { padding: 34px; border: 1px solid var(--line-strong); background: #faf9f6; }
.product-card.dark { background: var(--ink); color: var(--white); }
.product-card.dark p, .product-card.dark li { color: rgba(255,255,255,.68); }
.product-card h3 { margin: 70px 0 8px; font-size: clamp(42px, 5vw, 72px); }
.product-subtitle { color: var(--accent); font: 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.spec-list { margin: 30px 0 0; padding: 0; list-style: none; }
.spec-list li { padding: 12px 0; border-top: 1px solid currentColor; opacity: .82; }
.product-detail-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 64px; align-items: start; }
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); }
.step { min-height: 190px; padding: 26px; border-left: 1px solid var(--line); counter-increment: step; }
.step:first-child { border-left: 0; }
.step::before { content: "0" counter(step); display: block; margin-bottom: 54px; color: var(--accent); font: 11px/1 var(--mono); }
.step p { margin: 0; font-size: 14px; }
.cta-panel { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: center; padding: clamp(34px, 5vw, 64px); background: var(--ink); color: var(--white); }
.cta-panel p { max-width: 640px; margin: 10px 0 0; color: rgba(255,255,255,.65); }
.cta-panel .btn { border-color: var(--white); color: var(--white); }
.cta-panel .btn:hover { background: var(--accent); border-color: var(--accent); }
.news-list { border-top: 1px solid var(--line-strong); }
.news-item { display: grid; grid-template-columns: 130px minmax(0, 1fr) auto; gap: 24px; align-items: center; padding: 26px 0; border-bottom: 1px solid var(--line); }
.news-item time { color: var(--muted); font: 11px/1 var(--mono); }
.news-item h3 { margin: 0; font-size: 23px; }
.news-item .link-arrow { white-space: nowrap; font-size: 13px; }
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.team-grid.two-up { grid-template-columns: repeat(2, 1fr); }
.person-card { min-height: 250px; padding: 28px; border: 1px solid var(--line); background: rgba(255,255,255,.24); }
.person-card .role { color: var(--accent); font: 11px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.person-card h3 { margin: 76px 0 8px; }
.person-card p { margin: 0; font-size: 14px; }
.career-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.career-card { padding: 28px; border: 1px solid var(--line); }
.career-card h3 { margin-bottom: 14px; }
.career-card p { margin-bottom: 22px; }
.contact-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; padding: 30px; border: 1px solid var(--line-strong); background: var(--white); }
.contact-form label { display: grid; gap: 7px; color: #383b40; font-size: 13px; }
.contact-form input, .contact-form textarea { width: 100%; border: 1px solid var(--line-strong); background: var(--paper); padding: 13px 14px; }
.contact-form .full { grid-column: 1 / -1; }
.form-note { grid-column: 1 / -1; margin: 0; font-size: 12px; }
.notice { padding: 18px 20px; border-left: 4px solid var(--accent); background: var(--accent-soft); color: #333b59; }
.small-note { color: var(--muted); font-size: 12px; }
.site-footer { padding: 64px 0 34px; background: var(--ink); color: var(--white); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, .6fr); gap: 36px; }
.footer-brand { font: 500 clamp(26px, 3vw, 42px)/1.1 var(--serif); }
.footer-copy { max-width: 480px; margin-top: 20px; color: rgba(255,255,255,.58); font-size: 14px; }
.footer-col h3 { margin: 0 0 16px; color: rgba(255,255,255,.45); font: 11px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.footer-col a { display: block; margin: 9px 0; color: rgba(255,255,255,.78); font-size: 14px; }
.footer-col a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 60px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.16); color: rgba(255,255,255,.42); font-size: 11px; }
[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
[data-reveal].is-visible { opacity: 1; transform: none; }
.team-grid.four-up { grid-template-columns: repeat(4, 1fr); }
.team-grid.four-up .person-card { min-height: 360px; }
.team-grid.four-up .person-card h3 { margin-top: 48px; font-size: 22px; }
@media (max-width: 1000px) {
  .site-header-inner { grid-template-columns: auto 1fr auto; }
  .site-nav { position: absolute; top: 100%; left: calc(50% - 50vw); width: 100vw; height: calc(100dvh - var(--header-h)); display: none; flex-direction: column; align-items: flex-start; justify-content: flex-start; gap: 0; padding: 24px var(--gutter); overflow-y: auto; background: var(--paper); z-index: 110; }
  .site-nav a { width: 100%; padding: 18px 0; border-bottom: 1px solid var(--line); font-size: 20px; }
  .site-nav a.active::after { display: none; }
  .nav-open .site-nav { display: flex; }
  .nav-toggle { display: block; justify-self: end; }
  .header-cta { display: none; }
  .header-tools { gap:8px; }
  .home-hero-grid, .section-head, .product-detail-grid, .company-hero-grid { grid-template-columns: 1fr; }
  .architecture-figure { max-width: 760px; }
  .metric-grid, .four-col, .steps { grid-template-columns: repeat(2, 1fr); }
  .metric:nth-child(3), .step:nth-child(3) { border-left: 0; }
  .metric:nth-child(n+3), .step:nth-child(n+3) { border-top: 1px solid var(--line); }
  .three-col, .team-grid, .team-grid.two-up, .team-grid.four-up { grid-template-columns: repeat(2, 1fr); }
  .feature-row { grid-template-columns: 60px 1fr; }
  .feature-row p { grid-column: 2; }
}
@media (max-width: 680px) {
  :root { --header-h: 68px; }
  .brand-logo { width: 30px; height: 30px; }
  .brand span { font-size: 13px; }
  .hero { padding-top: 42px; }
  h1 { font-size: clamp(41px, 13vw, 62px); }
  h2 { font-size: clamp(30px, 10vw, 46px); }
  .metric-grid, .two-col, .three-col, .four-col, .tech-rail, .team-grid, .team-grid.four-up, .career-grid, .steps, .contact-form { grid-template-columns: 1fr; }
  .metric, .step, .tech-rail article { border-left: 0; border-top: 1px solid var(--line); }
  .metric:first-child, .step:first-child, .tech-rail article:first-child { border-top: 0; }
  .card { min-height: 0; }
  .card-number { margin-bottom: 34px; }
  .business-card h3 { margin-bottom: 32px; }
  .feature-row { grid-template-columns: 1fr; gap: 10px; }
  .feature-row p { grid-column: auto; }
  .news-item { grid-template-columns: 1fr; gap: 8px; }
  .cta-panel { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand, .footer-copy { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }
}


.news-filter-bar { display:flex; flex-wrap:wrap; gap:10px; margin:0 0 28px; }
.news-filter-bar button { padding:9px 13px; border:1px solid var(--line-strong); background:transparent; color:var(--muted); cursor:pointer; }
.news-filter-bar button.active, .news-filter-bar button:hover { border-color:var(--accent); background:var(--accent); color:var(--white); }
.news-card { display:grid; grid-template-columns:150px minmax(0,1fr) 54px; gap:28px; padding:32px 0; border-top:1px solid var(--line-strong); }
.news-card:last-child { border-bottom:1px solid var(--line-strong); }
.news-card-meta { display:flex; flex-direction:column; gap:8px; color:var(--muted); font:11px/1.4 var(--mono); }
.news-card-meta span { color:var(--accent); }
.news-card h2 { margin:0 0 14px; font-size:clamp(25px,3vw,40px); }
.news-card p { max-width:780px; margin-bottom:0; }
.news-card details { margin-top:20px; }
.news-card summary { cursor:pointer; color:var(--accent); font-weight:700; }
.news-card-body { max-width:780px; margin-top:16px; padding-top:16px; border-top:1px solid var(--line); white-space:pre-line; }
.news-card-index { color:var(--line-strong); font:500 24px/1 var(--mono); text-align:right; }
.admin-grid { display:grid; grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr); gap:28px; align-items:start; }
.admin-panel { padding:28px; border:1px solid var(--line-strong); background:rgba(255,255,255,.48); }
.admin-panel h2 { font-size:30px; }
.admin-list { display:grid; gap:12px; }
.admin-item { padding:18px; border:1px solid var(--line); background:var(--white); }
.admin-item h3 { margin:0 0 6px; font-size:20px; }
.admin-item p { margin:0 0 12px; font-size:13px; }
.admin-item-actions { display:flex; gap:10px; flex-wrap:wrap; }
.admin-item button, .admin-actions button, .admin-actions label { padding:9px 12px; border:1px solid var(--line-strong); background:transparent; cursor:pointer; font-size:13px; }
.admin-actions { display:flex; flex-wrap:wrap; gap:10px; margin-top:20px; }
.admin-actions .primary { background:var(--accent); border-color:var(--accent); color:var(--white); }
.admin-help { margin-top:24px; padding:18px; border-left:3px solid var(--accent); background:var(--accent-soft); font-size:13px; color:#333b59; }
@media (max-width:680px){ .news-card{grid-template-columns:1fr;gap:10px}.news-card-index{display:none}.admin-grid{grid-template-columns:1fr} }

.visual-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; }
.visual-card { margin:0; padding:22px; border:1px solid var(--line); background:rgba(255,255,255,.48); }
.visual-card img { width:100%; height:260px; object-fit:contain; }
.visual-card figcaption { margin-top:18px; color:var(--muted); font-size:13px; }
.diagram-wide { margin:0; padding:24px; border:1px solid var(--line-strong); background:#faf9f6; }
.diagram-wide img { width:100%; max-height:620px; object-fit:contain; }
.diagram-wide figcaption { margin-top:16px; color:var(--muted); font-size:13px; }
@media(max-width:680px){.visual-grid{grid-template-columns:1fr}.visual-card img{height:210px}}

.material-actions { display: flex; flex-wrap: wrap; gap: 12px; }