:root {
  --paper: #f8faff;
  --ink: #162344;
  --accent: #3446c9;
  --on-accent: #fff;
  --muted: #4d5c7a;
  --line: #d4def6;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Avenir Next", system-ui, sans-serif;
}
.wrap { width: min(100% - 88px, 1280px); }
.top { position: relative; background: #fcfdff; border-bottom: 1px solid #e3e8f7; }
.header { display: flex; align-items: center; gap: clamp(12px, 2.5vw, 36px); min-height: 71px; }
.brand { display: inline-flex; align-items: center; gap: 9px; white-space: nowrap; }
.brand strong { font-size: 1.55rem; letter-spacing: -.1em; }
.brand > span:last-child, .footer strong span { font: 800 .65rem/1 ui-monospace, monospace; letter-spacing: .07em; color: #3a4aa8; }
.brand-mark { display: grid; width: 30px; height: 30px; padding: 7px 6px; align-content: center; gap: 2px; border-radius: 7px; background: var(--accent); }
.brand-mark i { width: 15px; height: 3px; background: #fff; transform: skew(-24deg); }
.brand-mark i:nth-child(2) { margin-left: 2px; opacity: .82; }
.brand-mark i:nth-child(3) { margin-left: 4px; opacity: .66; }
.header nav { display: flex; margin-inline: auto; gap: clamp(15px, 3.3vw, 47px); color: #3d4b6b; font-size: .87rem; font-weight: 650; }
.header nav a:hover { color: var(--accent); }
.lang { color: #334288; border-color: #abb8e4; border-radius: 4px; }
.cta { display: inline-flex; justify-content: space-between; align-items: center; gap: 17px; background: var(--accent); color: white; border: 1px solid transparent; border-radius: 5px; min-height: 47px; padding: 9px 15px; font-size: .86rem; font-weight: 750; }
.cta:hover { background: #2939ac; }
.header-cta { min-height: 35px; padding: 6px 10px; white-space: nowrap; }
.hero { background: radial-gradient(ellipse at 76% 46%, #c5d0ff88, transparent 52%), radial-gradient(ellipse at 90% 0, #e3deff, transparent 50%), linear-gradient(118deg, #f4f8ff, #eaf0ff 68%, #edf3ff); border-bottom: 1px solid var(--line); overflow: clip; }
.hero-grid { display: grid; grid-template-columns: minmax(0, .84fr) minmax(0, 1.16fr); gap: clamp(12px, 2.5vw, 36px); align-items: center; padding-block: clamp(31px, 5vw, 73px) 22px; }
.copy .eyebrow { display: inline-flex; align-items: center; gap: 6px; padding: 5px 8px; border: 1px solid #c9d5f8; border-radius: 5px; background: #eef3ff; }
.eyebrow { color: #3144a9; font-size: .74rem; font-weight: 750; letter-spacing: .075em; line-height: 1.35; }
.copy h1 { margin: 16px 0; font-size: clamp(3.4rem, 6.3vw, 6.1rem); line-height: 1.035; letter-spacing: -.085em; font-weight: 850; }
.copy h1 span, .copy h1 strong { display: block; }
.copy h1 strong { color: #384ac7; font-weight: inherit; }
:lang(en) .copy h1 { font-size: clamp(2.85rem, 5.5vw, 5.4rem); line-height: .99; letter-spacing: -.065em; }
.lead { max-width: 420px; color: #3e4d6d; font-size: clamp(.96rem, 1.3vw, 1.16rem); line-height: 1.68; }
.actions { display: flex; align-items: center; flex-wrap: wrap; gap: 12px 20px; margin-top: 23px; }
.plain { color: #2c3b85; padding-block: 5px; border-bottom: 1px solid #a0afdf; font-size: .84rem; font-weight: 750; }
.plain:hover { border-color: currentColor; }
.architecture svg { width: 100%; height: auto; overflow: visible; }
.architecture figcaption { display: flex; justify-content: center; flex-wrap: wrap; gap: 7px 15px; color: #334481; }
.architecture figcaption > span { display: inline-flex; gap: 6px; align-items: center; border: 1px solid #b5c2ee; border-radius: 4px; padding: 4px 8px; background: #f6f8ff88; font-size: .69rem; font-weight: 650; }
.architecture figcaption i { width: 6px; height: 6px; border-radius: 50%; background: #505cdb; }
.architecture figcaption > span + span i { background: #63874b; }
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 17px; padding-bottom: 27px; }
.metrics > div { display: grid; gap: 4px; padding: 13px 14px; border: 1px solid #c7d4f4; background: #f8fbff94; }
.metrics > div:first-child { border-radius: 6px 0 0 6px; }
.metrics > div:last-child { border-radius: 0 6px 6px 0; }
.metrics > div + div { border-left: 0; }
.metrics strong { font-size: 1.09rem; }
.metrics span { font-size: .75rem; color: var(--muted); }
.solution, .delivery, .faq { padding-block: clamp(40px, 6vw, 87px); }
.section-head h2, .end h2 { font-size: clamp(1.95rem, 4vw, 3.9rem); line-height: 1.1; letter-spacing: -.065em; margin: 7px 0; }
.section-head > p:last-child:not(.eyebrow) { margin-top: 9px; color: var(--muted); font-size: .93rem; line-height: 1.55; }
.roles { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; margin-top: 23px; }
.roles article { border: 1px solid var(--line); border-radius: 7px; padding: clamp(17px, 3vw, 35px); background: #fff; }
.roles article + article { background: #eef1ff; }
.role-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; color: #3545ae; }
.role-icon { display: grid; place-items: center; width: 36px; height: 36px; background: #e2e9ff; border-radius: 7px; font-size: 1.32rem; font-weight: 750; }
.role-top small { font: 750 .66rem/1.2 ui-monospace, monospace; letter-spacing: .08em; }
.roles h3 { font-size: clamp(1.12rem, 2.3vw, 2.15rem); letter-spacing: -.045em; margin-top: 12px; }
.roles ul { display: grid; gap: 7px; margin: 10px 0 0; padding-left: 16px; font-size: .87rem; line-height: 1.45; color: var(--muted); }
.roles li::marker { color: var(--accent); }
.delivery { background: #eaf0ff; border-block: 1px solid var(--line); }
.delivery ol { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; list-style: none; padding: 0; margin: 22px 0 0; }
.delivery li { padding: 13px 10px 0 0; border-top: 2px solid #a6b4ed; }
.delivery li span { color: #3347a5; font: 750 .8rem/1.2 ui-monospace, monospace; }
.delivery li h3 { margin-block: 5px; font-size: 1.05rem; }
.delivery li p { color: var(--muted); font-size: .83rem; line-height: 1.5; }
.faq { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.faq details { border-top: 1px solid #cbd6f0; }
.faq summary { padding-block: 11px; cursor: pointer; font-weight: 700; }
.faq details p { padding-bottom: 12px; color: var(--muted); font-size: .85rem; line-height: 1.5; }
.end { background: #283aab; color: #fff; }
.end .wrap { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-block: 27px; }
.end h2 { font-size: clamp(1.45rem, 3.2vw, 3.1rem); margin: 0; }
.end .cta { background: #e9edff; color: #21318c; flex-shrink: 0; }
.end .cta:hover { background: #fff; }
.end .cta:focus-visible { outline-color: #fff; }
.footer { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding-block: 20px; color: var(--muted); font-size: .76rem; }
@media (max-width: 760px) {
  .wrap { width: calc(100% - 32px); }
  .header { min-height: 58px; gap: 8px; }
  .header nav { display: none; }
  .header .lang { margin-left: auto; }
  .hero-grid { grid-template-columns: minmax(0, 1fr); padding-block: 27px 10px; gap: 8px; }
  .copy h1 { font-size: clamp(3.35rem, 12.5vw, 5.4rem); margin-block: 12px; }
  :lang(en) .copy h1 { font-size: clamp(2.65rem, 10vw, 4.9rem); }
  .actions { margin-top: 15px; }
  .architecture { max-width: 560px; margin-inline: auto; }
  .metrics { margin-top: 12px; padding-bottom: 17px; }
  .metrics > div { padding: 8px 5px; }
  .metrics strong { font-size: .83rem; }
  .metrics span { font-size: .66rem; }
  .roles, .faq { grid-template-columns: 1fr; }
  .delivery ol { gap: 7px; }
  .delivery li { padding-right: 3px; }
  .end .wrap { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 500px) { .header-cta { display: none; } }

.product-proof { padding-block: clamp(32px, 5vw, 66px); border-bottom: 1px solid var(--line); }
.proof-switch { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 17px; }
.proof-switch button { border: 1px solid var(--line); background: #eef1ff; padding: 7px 10px; border-radius: 4px; font-weight: 650; }
.proof-switch button[aria-pressed="true"] { background: var(--accent); color: #fff; border-color: var(--accent); }
.proof-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; align-items: center; margin-block: 10px 14px; padding: clamp(12px, 3vw, 28px); border: 1px solid var(--line); border-radius: 7px; background: #fff; }
.proof-panel p { margin-top: 6px; color: var(--muted); line-height: 1.55; }
.proof-example { display: grid; gap: 5px; background: #edf2ff; border-radius: 6px; padding: 13px; }
.proof-example small, .proof-example span { color: var(--muted); font-size: .75rem; }
@media (max-width: 620px) { .proof-panel { grid-template-columns: 1fr; } }