:root {
  --color-bg: #f7f8fa;
  --color-surface: #ffffff;
  --color-surface-muted: #f1f3f5;
  --color-text: #1f2933;
  --color-text-secondary: #667085;
  --color-text-muted: #98a2b3;
  --color-border: #e4e7ec;
  --color-primary: #315efb;
  --color-primary-hover: #244bd1;
  --color-success: #198754;
  --color-warning: #b7791f;
  --color-danger: #c53030;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(16, 24, 40, 0.06);
  --shadow-md: 0 8px 24px rgba(16, 24, 40, 0.08);
  --spacing-unit: 4px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--color-bg); color: var(--color-text); font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; font-size: 15px; line-height: 1.6; }
button, a { font: inherit; }
button { cursor: pointer; }
a { color: inherit; text-decoration: 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; }
.container { width: min(1160px, calc(100% - 64px)); margin: 0 auto; }
.section { padding: 104px 0; }

.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid rgba(228, 231, 236, .78); background: rgba(247, 248, 250, .9); backdrop-filter: blur(14px); }
.nav-wrap { display: flex; align-items: center; min-height: 72px; gap: 36px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand-mark { display: inline-flex; align-items: flex-end; gap: 3px; width: 28px; height: 28px; padding: 5px; border: 1px solid #cbd6ff; border-radius: 8px; background: #e9edff; }
.brand-mark span { display: block; width: 4px; border-radius: 4px; background: var(--color-primary); }
.brand-mark span:nth-child(1) { height: 9px; opacity: .6; }.brand-mark span:nth-child(2) { height: 14px; opacity: .8; }.brand-mark span:nth-child(3) { height: 18px; }
.brand-mark.small { width: 22px; height: 22px; padding: 4px; border-radius: 6px; }.brand-mark.small span { width: 3px; }.brand-mark.small span:nth-child(1) { height: 6px; }.brand-mark.small span:nth-child(2) { height: 10px; }.brand-mark.small span:nth-child(3) { height: 13px; }
.brand-copy { display: grid; line-height: 1.15; }.brand-copy strong { font-size: 16px; letter-spacing: -.02em; }.brand-copy small { color: var(--color-text-muted); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; margin-top: 3px; }
.main-nav { display: flex; align-items: center; gap: 30px; margin-right: auto; }.main-nav a { position: relative; color: var(--color-text-secondary); font-size: 14px; padding: 25px 0 23px; transition: color 180ms ease; }.main-nav a:hover, .main-nav a.active { color: var(--color-text); }.main-nav a.active::after { position: absolute; bottom: -1px; left: 0; width: 100%; height: 2px; background: var(--color-primary); content: ""; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 42px; padding: 0 17px; border: 1px solid transparent; border-radius: var(--radius-md); font-weight: 600; font-size: 14px; transition: background 180ms ease, border-color 180ms ease, transform 180ms ease; }.button:hover { transform: translateY(-1px); }.button-primary { color: #fff; border-color: var(--color-primary); background: var(--color-primary); box-shadow: 0 4px 10px rgba(49, 94, 251, .16); }.button-primary:hover { border-color: var(--color-primary-hover); background: var(--color-primary-hover); }.menu-toggle { display: none; }

.hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(440px, .92fr); align-items: center; gap: 88px; min-height: 610px; padding-top: 90px; padding-bottom: 90px; }.eyebrow, .section-kicker, .panel-kicker { color: var(--color-primary); font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }.eyebrow { display: flex; align-items: center; gap: 8px; }.status-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--color-success); box-shadow: 0 0 0 3px rgba(25, 135, 84, .1); }.hero h1 { max-width: 620px; margin: 20px 0 18px; font-size: clamp(34px, 4.1vw, 49px); line-height: 1.18; letter-spacing: -.045em; font-weight: 650; }.hero h1 span { color: var(--color-primary); }.hero-lede { max-width: 560px; margin: 0; color: var(--color-text-secondary); font-size: 16px; line-height: 1.8; }.hero-actions { display: flex; align-items: center; gap: 25px; margin-top: 32px; }.text-link, .card-link { color: var(--color-primary); font-size: 14px; font-weight: 600; }.text-link:hover, .card-link:hover { color: var(--color-primary-hover); }.hero-note { display: flex; align-items: center; gap: 8px; margin-top: 29px; color: var(--color-text-muted); font-size: 12px; }.note-icon { display: inline-flex; align-items: center; justify-content: center; width: 17px; height: 17px; border-radius: 50%; color: var(--color-success); background: #e6f4ed; font-size: 11px; font-weight: 700; }
.hero-panel { overflow: hidden; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--color-surface); box-shadow: var(--shadow-md); }.panel-topline { display: flex; align-items: center; justify-content: space-between; padding: 23px 24px 21px; border-bottom: 1px solid var(--color-border); }.panel-topline > div { display: grid; gap: 4px; }.panel-kicker { color: var(--color-text-muted); font-size: 10px; }.panel-topline strong { font-size: 16px; }.badge { display: inline-flex; align-items: center; gap: 6px; width: fit-content; padding: 4px 9px; border-radius: 999px; font-size: 11px; font-weight: 600; }.badge-success { color: var(--color-success); background: #eaf7ef; }.badge-planned { color: var(--color-text-muted); background: var(--color-surface-muted); font-size: 10px; font-weight: 500; vertical-align: 2px; }.badge-outline { color: var(--color-primary); border: 1px solid #cbd6ff; background: #f7f9ff; }
.workflow-canvas { position: relative; display: grid; gap: 14px; padding: 28px 24px 26px; background: #fbfcfe; }.workflow-node { position: relative; z-index: 1; display: grid; grid-template-columns: 32px 1fr auto; align-items: center; gap: 11px; min-height: 59px; padding: 10px 13px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); box-shadow: var(--shadow-sm); }.workflow-node > span:nth-child(2) { display: grid; gap: 1px; }.workflow-node small { color: var(--color-text-muted); font-size: 11px; }.workflow-node strong { font-size: 13px; }.workflow-node em { color: var(--color-text-muted); font-size: 11px; font-style: normal; }.workflow-node.is-complete em { color: var(--color-success); }.workflow-node.is-active { border-color: #b8c6ff; box-shadow: 0 0 0 3px rgba(49, 94, 251, .07); }.workflow-node.is-active em { color: var(--color-primary); }.node-icon { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; border-radius: 8px; color: var(--color-primary); background: #eef1ff; font-size: 15px; }.node-route .node-icon { color: #7856ce; background: #f1edff; }.node-model .node-icon { color: #158779; background: #e8f7f4; }.node-review .node-icon { color: #9b6d25; background: #fff7e7; }.canvas-line { position: absolute; z-index: 0; left: 39px; width: 1px; height: 15px; border-left: 1px dashed #cfd6e2; }.line-one { top: 87px; }.line-two { top: 160px; }.panel-footer { display: flex; justify-content: space-between; padding: 14px 24px; border-top: 1px solid var(--color-border); color: var(--color-text-muted); font-size: 11px; }.panel-footer b { color: var(--color-text-secondary); font-weight: 600; }.text-success { color: var(--color-success) !important; }

.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; margin-bottom: 38px; }.section-heading h2 { max-width: 610px; margin: 8px 0 0; font-size: clamp(24px, 3vw, 31px); line-height: 1.3; letter-spacing: -.035em; }.section-heading > p { max-width: 370px; margin: 0; color: var(--color-text-secondary); font-size: 14px; line-height: 1.8; }.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }.capability-card { position: relative; min-height: 260px; padding: 23px 21px 21px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); box-shadow: var(--shadow-sm); transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease; }.capability-card:hover { border-color: #c5cff4; box-shadow: var(--shadow-md); transform: translateY(-2px); }.capability-card-muted { background: #fbfcfd; }.capability-number { position: absolute; top: 24px; right: 20px; color: #c3cad4; font-size: 11px; font-weight: 700; letter-spacing: .08em; }.capability-icon { display: flex; align-items: center; justify-content: center; width: 38px; height: 38px; margin-bottom: 25px; border-radius: 9px; font-size: 20px; }.icon-blue { color: var(--color-primary); background: #eef1ff; }.icon-slate { color: #667085; background: #eef0f4; }.icon-teal { color: #158779; background: #e8f7f4; }.icon-gray { color: #98a2b3; background: #f1f3f5; }.capability-card h3 { margin: 0 0 9px; font-size: 17px; letter-spacing: -.02em; }.capability-card p { min-height: 70px; margin: 0 0 20px; color: var(--color-text-secondary); font-size: 13px; line-height: 1.7; }.card-link { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; }.card-link span { font-size: 16px; transition: transform 180ms ease; }.card-link:hover span { transform: translateX(3px); }
.section-tint { border-top: 1px solid #edf0f4; border-bottom: 1px solid #edf0f4; background: #f1f4f8; }.orchestration-heading { align-items: center; }.flow-tabs { display: flex; padding: 3px; border: 1px solid var(--color-border); border-radius: 8px; background: var(--color-surface); }.tab { padding: 7px 13px; border: 0; border-radius: 6px; color: var(--color-text-secondary); background: transparent; font-size: 12px; }.tab.active { color: var(--color-primary); background: #eef1ff; font-weight: 600; }.flow-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 20px; }.flow-steps { display: grid; gap: 8px; }.flow-step { display: grid; grid-template-columns: 33px 1fr auto; align-items: center; gap: 12px; min-height: 74px; padding: 12px 17px; border: 1px solid var(--color-border); border-radius: var(--radius-md); color: var(--color-text); text-align: left; background: var(--color-surface); transition: border-color 180ms ease, box-shadow 180ms ease; }.flow-step:hover, .flow-step.active { border-color: #b8c6ff; box-shadow: var(--shadow-sm); }.flow-step.active { background: #fbfcff; }.step-index { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; border-radius: 50%; color: var(--color-text-muted); background: var(--color-surface-muted); font-size: 11px; font-weight: 700; }.flow-step.active .step-index { color: var(--color-primary); background: #e8edff; }.flow-step b, .flow-step small { display: block; }.flow-step b { font-size: 14px; }.flow-step small { margin-top: 2px; color: var(--color-text-muted); font-size: 12px; }.step-arrow { color: var(--color-text-muted); font-size: 17px; }.flow-detail { min-height: 320px; padding: 33px 36px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); box-shadow: var(--shadow-sm); }.detail-meta { display: flex; justify-content: space-between; align-items: center; }.detail-time { color: var(--color-text-muted); font-size: 12px; }.flow-detail h3 { max-width: 460px; margin: 29px 0 11px; font-size: 22px; line-height: 1.4; letter-spacing: -.03em; }.flow-detail p { max-width: 530px; margin: 0; color: var(--color-text-secondary); font-size: 14px; line-height: 1.8; }.detail-placeholder { display: flex; align-items: center; gap: 12px; margin-top: 29px; padding: 14px; border: 1px dashed #cbd3df; border-radius: var(--radius-md); background: #fafbfc; }.placeholder-icon { display: flex; align-items: center; justify-content: center; width: 30px; height: 30px; border-radius: 8px; color: var(--color-primary); background: #eef1ff; font-size: 20px; }.detail-placeholder div { display: grid; flex: 1; }.detail-placeholder b { font-size: 12px; }.detail-placeholder small { color: var(--color-text-muted); font-size: 11px; }
.section-heading.compact { align-items: center; margin-bottom: 26px; }.data-source { color: var(--color-text-muted); font-size: 12px; }.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }.metric-card { min-height: 154px; padding: 20px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); box-shadow: var(--shadow-sm); }.metric-label { display: flex; align-items: center; gap: 8px; color: var(--color-text-secondary); font-size: 12px; }.metric-icon { display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 6px; color: var(--color-primary); background: #eef1ff; font-size: 13px; }.metric-card > strong { display: block; margin-top: 12px; font-size: 29px; line-height: 1.2; letter-spacing: -.04em; }.metric-unit { margin-left: 3px; font-size: 15px; font-weight: 500; }.metric-foot { display: flex; gap: 7px; margin-top: 15px; color: var(--color-text-muted); font-size: 11px; }.trend-up { color: var(--color-success); font-weight: 600; }.trend-neutral { color: var(--color-primary); font-weight: 600; }.metric-card-chart { overflow: hidden; }.chart-legend { display: inline-flex; align-items: center; gap: 5px; margin-left: auto; color: var(--color-text-muted); font-size: 10px; }.chart-legend i { width: 6px; height: 6px; border-radius: 50%; background: var(--color-primary); }.mini-chart { display: flex; align-items: end; gap: 6px; height: 60px; margin-top: 16px; padding-top: 3px; border-bottom: 1px solid #edf0f4; }.mini-chart span { flex: 1; min-height: 8px; border-radius: 3px 3px 0 0; background: #cdd7ff; }.mini-chart span:last-child, .mini-chart span:nth-last-child(2) { background: var(--color-primary); }
.cta-section { display: flex; align-items: center; justify-content: space-between; gap: 30px; margin-top: 12px; margin-bottom: 72px; padding: 34px 40px; border: 1px solid #cfd8f6; border-radius: var(--radius-lg); background: #f3f6ff; }.cta-section h2 { margin: 6px 0 3px; font-size: 21px; letter-spacing: -.025em; }.cta-section p { margin: 0; color: var(--color-text-secondary); font-size: 13px; }.site-footer { border-top: 1px solid var(--color-border); background: var(--color-surface); }.footer-wrap { display: flex; align-items: center; justify-content: space-between; min-height: 74px; gap: 20px; }.footer-brand, .footer-meta { display: flex; align-items: center; gap: 9px; color: var(--color-text-muted); font-size: 11px; }.footer-brand strong { color: var(--color-text-secondary); font-size: 13px; }.footer-meta { gap: 20px; }.footer-meta a { color: var(--color-primary); }
.toast { position: fixed; right: 24px; bottom: 24px; z-index: 30; max-width: calc(100% - 48px); padding: 12px 16px; border: 1px solid #cfd8f6; border-radius: var(--radius-md); color: var(--color-text); background: var(--color-surface); box-shadow: var(--shadow-md); font-size: 13px; opacity: 0; pointer-events: none; transform: translateY(10px); transition: opacity 180ms ease, transform 180ms ease; }.toast.is-visible { opacity: 1; transform: translateY(0); }
@media (max-width: 960px) { .container { width: min(100% - 40px, 720px); }.hero { grid-template-columns: 1fr; gap: 46px; min-height: 0; padding-top: 72px; }.hero-copy { max-width: 650px; }.capability-grid, .metrics-grid { grid-template-columns: repeat(2, 1fr); }.flow-layout { grid-template-columns: 1fr; }.flow-detail { min-height: 270px; } }
@media (max-width: 680px) { .container { width: min(100% - 32px, 520px); }.nav-wrap { min-height: 64px; gap: 15px; }.header-action { display: none; }.menu-toggle { display: inline-flex; flex-direction: column; justify-content: center; gap: 4px; width: 36px; height: 36px; margin-left: auto; padding: 7px; border: 1px solid var(--color-border); border-radius: 8px; background: var(--color-surface); }.menu-toggle > span:not(.sr-only) { width: 100%; height: 1.5px; background: var(--color-text-secondary); }.main-nav { position: absolute; top: 63px; right: 16px; left: 16px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 7px; border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); box-shadow: var(--shadow-md); }.main-nav.is-open { display: flex; }.main-nav a { padding: 10px 12px; border-radius: 6px; }.main-nav a.active::after { display: none; }.main-nav a.active { background: #f1f3ff; }.section { padding: 72px 0; }.hero { padding-top: 54px; padding-bottom: 66px; }.hero h1 { font-size: 36px; }.hero-lede { font-size: 14px; }.hero-panel { min-width: 0; }.workflow-node { grid-template-columns: 30px 1fr; }.workflow-node em { display: none; }.panel-footer { flex-wrap: wrap; gap: 7px 15px; }.section-heading, .orchestration-heading { display: block; }.section-heading > p { margin-top: 16px; }.capability-grid, .metrics-grid { grid-template-columns: 1fr; }.capability-card { min-height: 0; }.capability-card p { min-height: 0; }.flow-tabs { width: fit-content; margin-top: 22px; }.flow-detail { padding: 25px 21px; }.flow-detail h3 { font-size: 20px; }.detail-placeholder { align-items: flex-start; }.detail-placeholder .badge { display: none; }.cta-section { display: block; margin-top: 0; margin-bottom: 52px; padding: 27px 23px; }.cta-section .button { margin-top: 22px; }.footer-wrap { display: block; padding: 19px 0; }.footer-meta { margin-top: 11px; }.footer-brand { flex-wrap: wrap; } }