/* ============================================================
   合因科技 · 官网设计系统  —  组件层 (Components)
   ============================================================ */

/* ===================== 按钮 ===================== */
.btn {
  --btn-bg: var(--c-brand);
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 24px; border-radius: var(--r-pill);
  font-size: 15px; font-weight: 600; color: #fff; background: var(--btn-bg);
  white-space: nowrap; cursor: pointer; position: relative; overflow: hidden;
  transition: transform var(--dur-1) var(--ease), box-shadow var(--dur-2) var(--ease), background var(--dur-2) var(--ease);
  box-shadow: 0 6px 18px rgba(26,107,255,.22);
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-brand); }
.btn:active { transform: translateY(0) scale(.98); transition-duration: .08s; }
.btn .icon, .btn [data-lucide] { width: 18px; height: 18px; }
.btn--grad { background: var(--grad-brand); background-size: 160% 160%; animation: gradPan 6s var(--ease-in-out) infinite; }
.btn--grad::after { content: ""; position: absolute; top: 0; left: 0; width: 60%; height: 100%; background: var(--grad-sheen); transform: translateX(-160%) skewX(-12deg); pointer-events: none; }
.btn--grad:hover::after { animation: shimmer 1s var(--ease); }
.btn--ghost {
  background: var(--c-brand-50); color: var(--c-brand-600);
  box-shadow: inset 0 0 0 1px var(--c-brand-100);
}
.btn--ghost:hover { background: var(--c-brand-100); box-shadow: inset 0 0 0 1px var(--c-brand-300); }
.btn--outline { background: transparent; color: var(--c-ink); box-shadow: inset 0 0 0 1.5px var(--c-line-strong); }
.btn--outline:hover { color: var(--c-brand-600); box-shadow: inset 0 0 0 1.5px var(--c-brand-300); }
.btn--white { background: #fff; color: var(--c-brand-700); box-shadow: var(--shadow-md); }
.btn--white:hover { box-shadow: var(--shadow-lg); }
.btn--ghost-light { background: rgba(255,255,255,.12); color: #fff; box-shadow: inset 0 0 0 1px rgba(255,255,255,.25); }
.btn--ghost-light:hover { background: rgba(255,255,255,.2); }
.btn--lg { height: 54px; padding: 0 32px; font-size: 16px; }
.btn--sm { height: 38px; padding: 0 18px; font-size: 14px; }
.btn--block { width: 100%; }
.link-arrow { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--c-brand-600); }
.link-arrow .icon, .link-arrow [data-lucide] { width: 17px; height: 17px; transition: transform var(--dur-2) var(--ease); }
.link-arrow:hover .icon, .link-arrow:hover [data-lucide] { transform: translateX(4px); }

/* ===================== 徽章 / 标签 ===================== */
.pill { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; padding: 5px 12px; border-radius: var(--r-pill); background: var(--c-brand-50); color: var(--c-brand-600); border: 1px solid var(--c-brand-100); }
.tag { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; padding: 5px 11px; border-radius: var(--r-sm); background: var(--c-bg-muted); color: var(--c-muted); transition: background var(--dur-1) var(--ease), color var(--dur-1) var(--ease), transform var(--dur-1) var(--ease); }
a.tag:hover { background: var(--c-brand-50); color: var(--c-brand-600); transform: translateY(-1px); }
.tag .icon { width: 14px; height: 14px; color: var(--c-brand); }
.badge-num { display: inline-flex; align-items: center; justify-content: center; min-width: 22px; height: 22px; padding: 0 6px; font-size: 12px; font-weight: 700; border-radius: var(--r-pill); background: var(--c-brand); color: #fff; }

/* ===================== 顶部导航 ===================== */
/* 用 position: sticky 代替 fixed：导航在正常文档流中占位并吸顶，
   彻底规避移动端浏览器对 fixed 元素在滚动时的重绘/裁剪 Bug（“半截导航”根因）。
   始终实底白色、样式恒定，滚动时不发生任何变化。 */
.site-header {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  height: var(--nav-h);
  z-index: var(--z-nav);
  background: #fff;
  border-bottom: 1px solid var(--c-line);
  box-shadow: 0 2px 16px rgba(20,50,120,.05);
}
.nav { height: 100%; display: flex; align-items: center; gap: 18px; flex-wrap: nowrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; color: var(--c-ink); letter-spacing: -.01em; flex: none; white-space: nowrap; }
.brand img { height: 30px; width: auto; }
.brand-name { font-size: 15.5px; font-weight: 700; white-space: nowrap; letter-spacing: 0; }
.footer-brand .brand-name { font-size: 20px; }
@media (max-width: 380px) { .brand-name { font-size: 14px; } }
.brand .brand-fallback { display: inline-flex; align-items: center; gap: 9px; }
.brand .brand-mark { width: 32px; height: 32px; border-radius: 9px; background: var(--grad-brand); color: #fff; display: grid; place-items: center; font-size: 16px; font-weight: 800; box-shadow: var(--shadow-brand); }
.nav-menu { display: flex; align-items: center; gap: 2px; margin-left: 4px; flex-wrap: nowrap; }
.nav-item { position: relative; flex: none; }
.nav-link { display: inline-flex; align-items: center; gap: 4px; height: 40px; padding: 0 12px; border-radius: var(--r-sm); font-size: 15px; font-weight: 500; color: var(--c-text); white-space: nowrap; transition: color var(--dur-1) var(--ease), background var(--dur-1) var(--ease); }
.nav-link .chev { width: 15px; height: 15px; transition: transform var(--dur-2) var(--ease); opacity: .7; }
.nav-link:hover { color: var(--c-brand-600); background: var(--c-brand-50); }
.nav-item.active > .nav-link { color: var(--c-brand-600); font-weight: 600; }
.nav-item.has-mega:hover .nav-link .chev { transform: rotate(180deg); }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; flex: none; }

/* 大菜单 (mega) */
.mega { position: absolute; top: calc(100% + 10px); left: 50%; transform: translateX(-50%) translateY(10px); width: min(880px, 92vw); background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-xl); box-shadow: var(--shadow-xl); padding: 22px; opacity: 0; visibility: hidden; transition: opacity var(--dur-2) var(--ease), transform var(--dur-2) var(--ease-out); z-index: var(--z-mega); }
.nav-item.has-mega:hover .mega, .mega:hover { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.mega::before { content: ""; position: absolute; top: -10px; left: 0; right: 0; height: 10px; }
.mega-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.mega-cols { display: grid; gap: 14px; }
.mega-coltt { font-size: 11.5px; font-weight: 700; letter-spacing: .07em; color: var(--c-faint); text-transform: uppercase; padding: 2px 12px 6px; }
.mega-link { display: flex; gap: 12px; padding: 12px; border-radius: var(--r-md); transition: background var(--dur-1) var(--ease), transform var(--dur-1) var(--ease); }
.mega-link:hover { background: var(--c-brand-50); }
.mega-ico { width: 40px; height: 40px; border-radius: 11px; flex: none; display: grid; place-items: center; background: var(--c-brand-50); color: var(--c-brand-600); transition: background var(--dur-2) var(--ease), color var(--dur-2) var(--ease); }
.mega-ico [data-lucide], .mega-ico .icon { width: 21px; height: 21px; }
.mega-link:hover .mega-ico { background: var(--grad-brand); color: #fff; }
.mega-tt { font-weight: 600; color: var(--c-ink); font-size: 15px; display: flex; align-items: center; gap: 7px; }
.mega-tt .mini-badge { font-size: 10px; font-weight: 700; color: var(--c-brand-600); background: var(--c-brand-50); border: 1px solid var(--c-brand-100); padding: 1px 6px; border-radius: var(--r-pill); }
.mega-dd { font-size: 12.5px; color: var(--c-muted); margin-top: 3px; line-height: 1.5; }
.mega-foot { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--c-line); display: flex; align-items: center; justify-content: space-between; }
.mega-foot .muted { font-size: 13px; }

/* 移动端汉堡 + 抽屉 */
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: var(--r-sm); align-items: center; justify-content: center; color: var(--c-ink); }
.nav-toggle .icon, .nav-toggle [data-lucide] { width: 24px; height: 24px; }
.mobile-drawer { position: fixed; inset: var(--nav-h) 0 0 0; background: #fff; z-index: var(--z-nav); transform: translateX(100%); transition: transform var(--dur-3) var(--ease-out); overflow-y: auto; padding: 16px 20px 40px; }
.mobile-drawer.open { transform: translateX(0); }
.m-group { border-bottom: 1px solid var(--c-line); }
.m-link { display: flex; align-items: center; justify-content: space-between; padding: 15px 4px; font-size: 16px; font-weight: 500; color: var(--c-ink); }
.m-sub { display: none; padding: 0 4px 12px; }
.m-group.open .m-sub { display: block; }
.m-sub a { display: block; padding: 9px 12px; color: var(--c-muted); border-radius: var(--r-sm); }
.m-sub a:hover { background: var(--c-brand-50); color: var(--c-brand-600); }
.m-group .m-link .chev { transition: transform var(--dur-2) var(--ease); }
.m-group.open .m-link .chev { transform: rotate(180deg); }

@media (max-width: 1160px) {
  .nav-menu { display: none; }
  .nav-toggle { display: inline-flex; }
  /* 移动端只保留 logo + 汉堡菜单，进入系统/预约演示 收进抽屉，避免拥挤与溢出 */
  .nav-actions .btn { display: none; }
}

/* ===================== Hero ===================== */
.hero { position: relative; padding-top: clamp(48px, 8vw, 96px); padding-bottom: clamp(60px, 9vw, 110px); overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: -2; background:
   radial-gradient(60% 50% at 78% 8%, rgba(24,198,230,.16), transparent 60%),
   radial-gradient(55% 60% at 12% 6%, rgba(26,107,255,.16), transparent 60%),
   linear-gradient(180deg, #F4F8FF 0%, #FFFFFF 62%); }
.hero-grid-bg { position: absolute; inset: 0; z-index: -1; background-image: linear-gradient(rgba(26,107,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(26,107,255,.05) 1px, transparent 1px); background-size: 44px 44px; mask-image: radial-gradient(70% 60% at 50% 30%, #000, transparent 80%); -webkit-mask-image: radial-gradient(70% 60% at 50% 30%, #000, transparent 80%); }
.hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.hero h1 { margin-top: 22px; }
.hero .lead { margin-top: 22px; max-width: 540px; }
.hero-cta { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-meta { margin-top: 30px; display: flex; gap: 26px; flex-wrap: wrap; }
.hero-meta .hm { display: flex; align-items: center; gap: 9px; font-size: 14px; color: var(--c-muted); }
.hero-meta .hm .icon, .hero-meta .hm [data-lucide] { width: 18px; height: 18px; color: var(--c-mint); }
/* hero / 应用拟物 的响应式覆盖已统一移动到本文件末尾（在基础规则之后，确保生效） */

/* ===================== 应用界面拟物 (App Mockup) ===================== */
.mockup { position: relative; border-radius: var(--r-xl); background: #fff; box-shadow: var(--shadow-xl); border: 1px solid var(--c-line); overflow: hidden; }
.mockup-bar { height: 40px; display: flex; align-items: center; gap: 7px; padding: 0 16px; background: var(--c-bg-soft); border-bottom: 1px solid var(--c-line); }
.mockup-bar i { width: 11px; height: 11px; border-radius: 50%; background: #E2E8F4; display: inline-block; }
.mockup-bar i:nth-child(1){ background:#FF6259;} .mockup-bar i:nth-child(2){ background:#FFBD2E;} .mockup-bar i:nth-child(3){ background:#28C840;}
.mockup-bar .mb-url { margin-left: 10px; font-size: 12px; color: var(--c-faint); background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-pill); padding: 3px 12px; }
.mockup-body { padding: 18px; display: grid; grid-template-columns: 130px 1fr; gap: 16px; background: linear-gradient(180deg,#FBFCFF,#fff); }
.mk-side { display: flex; flex-direction: column; gap: 8px; }
.mk-side .mk-logo { height: 30px; border-radius: 8px; background: var(--grad-brand); margin-bottom: 6px; }
.mk-side .mk-nav { height: 30px; border-radius: 8px; background: var(--c-bg-muted); }
.mk-side .mk-nav.on { background: var(--c-brand-50); box-shadow: inset 0 0 0 1px var(--c-brand-100); }
.mk-main { display: flex; flex-direction: column; gap: 14px; }
.mk-kpis { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.mk-kpi { border: 1px solid var(--c-line); border-radius: var(--r-md); padding: 11px; background: #fff; }
.mk-kpi .v { font-family: var(--font-num); font-weight: 800; font-size: 19px; color: var(--c-ink); }
.mk-kpi .l { font-size: 11px; color: var(--c-faint); margin-top: 2px; }
.mk-kpi .v small { color: var(--c-mint); font-size: 11px; font-weight: 700; margin-left: 4px; }
.mk-chart { border: 1px solid var(--c-line); border-radius: var(--r-md); padding: 14px; background: #fff; }
.mk-chart .ct { font-size: 12px; color: var(--c-muted); margin-bottom: 12px; font-weight: 600; }
.mk-bars { display: flex; align-items: flex-end; gap: 9px; height: 96px; }
.mk-bars span { flex: 1; height: 100%; border-radius: 6px 6px 0 0; background: var(--c-brand-50); position: relative; }
.mk-bars span::after { content:""; position: absolute; left:0; right:0; bottom:0; height: var(--h,40%); border-radius: 6px 6px 0 0; background: var(--grad-brand); }
.mk-table { border: 1px solid var(--c-line); border-radius: var(--r-md); overflow: hidden; }
.mk-row { display: grid; grid-template-columns: 1fr 1fr 70px; gap: 10px; padding: 9px 12px; align-items: center; border-top: 1px solid var(--c-line); }
.mk-row:first-child { border-top: 0; background: var(--c-bg-soft); }
.mk-cell { height: 8px; border-radius: 4px; background: var(--c-bg-muted); }
.mk-cell.dark { background: var(--c-line-strong); }
.mk-stat { justify-self: end; font-size: 10px; font-weight: 700; padding: 3px 8px; border-radius: var(--r-pill); }
.mk-stat.ok { color: #0E9F6E; background: #E7F8F0; }
.mk-stat.wait { color: #B26B00; background: #FFF4E0; }
/* 悬浮小卡 */
.float-card { position: absolute; background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-md); box-shadow: var(--shadow-lg); padding: 12px 14px; display: flex; align-items: center; gap: 11px; font-size: 13px; }
.float-card .fc-ico { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; color: #fff; }
.float-card .fc-ico .icon, .float-card .fc-ico [data-lucide] { width: 18px; height: 18px; }
.float-card .fc-t { font-weight: 700; color: var(--c-ink); }
.float-card .fc-s { font-size: 11.5px; color: var(--c-faint); }
.fc-a { top: 12%; left: -26px; animation: floatY 5s var(--ease-in-out) infinite; }
.fc-b { bottom: 14%; right: -22px; animation: floatY 6s var(--ease-in-out) infinite .6s; }

/* ===================== 卡片 ===================== */
.card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--r-lg); padding: 28px; transition: transform var(--dur-2) var(--ease-out), box-shadow var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease); position: relative; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--c-brand-100); }
.card-ico { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: var(--c-brand-50); color: var(--c-brand-600); margin-bottom: 18px; transition: background var(--dur-2) var(--ease), color var(--dur-2) var(--ease), transform var(--dur-2) var(--ease); }
.card-ico .icon, .card-ico [data-lucide] { width: 26px; height: 26px; }
.card:hover .card-ico { background: var(--grad-brand); color: #fff; transform: scale(1.06) rotate(-3deg); }
.card h3 { font-size: 20px; margin-bottom: 10px; }
.card p { color: var(--c-muted); font-size: 15px; }
.card-arrow { margin-top: 16px; }
/* 悬停整卡时，"了解更多"箭头随之前移，反馈更连贯 */
.card:hover .link-arrow [data-lucide], .card:hover .link-arrow .icon { transform: translateX(4px); }
.card--soft { background: var(--c-bg-soft); border-color: transparent; }
.card--ink { background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.10); }
.card--ink h3 { color: #fff; } .card--ink p { color: #9FB0D4; }
.card--ink .card-ico { background: rgba(255,255,255,.08); color: #6FA8FF; }
.card--ink .link-arrow { color: #8FB8FF; }
.card--ink:hover { background: rgba(255,255,255,.07); border-color: rgba(111,168,255,.35); box-shadow: 0 24px 60px rgba(2,8,30,.45); }

/* 数字编号卡 */
.step { position: relative; padding-left: 4px; }
.step .step-n { font-family: var(--font-num); font-size: 15px; font-weight: 800; color: #fff; width: 38px; height: 38px; border-radius: 12px; background: var(--grad-brand); display: grid; place-items: center; box-shadow: var(--shadow-brand); margin-bottom: 16px; }
.step h3 { font-size: 18px; margin-bottom: 8px; }
.step p { color: var(--c-muted); font-size: 14.5px; }

/* 功能行 list-feature */
.feat { display: flex; gap: 14px; align-items: flex-start; }
.feat .feat-ico { width: 42px; height: 42px; border-radius: 12px; flex: none; display: grid; place-items: center; background: var(--c-brand-50); color: var(--c-brand-600); }
.feat .feat-ico .icon, .feat .feat-ico [data-lucide] { width: 21px; height: 21px; }
.feat h4 { font-size: 16px; margin-bottom: 5px; color: var(--c-ink); }
.feat p { font-size: 14px; color: var(--c-muted); }
.feat--check .feat-ico { width: 26px; height: 26px; border-radius: 8px; background: #E7F8F0; color: #0E9F6E; }
.feat--check .feat-ico .icon { width: 16px; height: 16px; }

/* ===================== 统计数字 ===================== */
.stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.stat { text-align: center; }
.stat .num { font-family: var(--font-num); font-weight: 800; font-size: clamp(34px, 4.4vw, 52px); line-height: 1; color: var(--c-ink); letter-spacing: -.02em; }
.stat .num .suf { font-size: .5em; color: var(--c-brand); margin-left: 2px; }
.stat .lbl { margin-top: 12px; color: var(--c-muted); font-size: 14.5px; }
.section--ink .stat .num { color: #fff; }
.section--ink .stat .num .suf { color: var(--c-cyan); }
.section--ink .stat .lbl { color: #9FB0D4; }
@media (max-width: 640px){ .stats { grid-template-columns: repeat(2,1fr); gap: 28px 16px; } }

/* ===================== Logo 墙 ===================== */
.logo-wall { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.logo-chip { display: flex; align-items: center; gap: 9px; padding: 12px 20px; border-radius: var(--r-pill); background: #fff; border: 1px solid var(--c-line); color: var(--c-muted); font-weight: 600; font-size: 14.5px; box-shadow: var(--shadow-xs); transition: transform var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease); }
.logo-chip:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); color: var(--c-ink); }
.logo-chip .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--grad-brand); }

/* ===================== 选项卡 (tabs) ===================== */
.tabs { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; padding: 6px; background: var(--c-bg-soft); border: 1px solid var(--c-line); border-radius: var(--r-pill); width: fit-content; margin-inline: auto; }
.tab { padding: 10px 20px; border-radius: var(--r-pill); font-weight: 600; font-size: 14.5px; color: var(--c-muted); transition: all var(--dur-2) var(--ease); }
.tab.active { background: #fff; color: var(--c-brand-600); box-shadow: var(--shadow-sm); }
.tab:hover:not(.active) { color: var(--c-ink); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeUp var(--dur-3) var(--ease-out); }

/* ===================== 手风琴 (accordion) ===================== */
.acc-item { border-bottom: 1px solid var(--c-line); }
.acc-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 4px; cursor: pointer; font-weight: 600; font-size: 17px; color: var(--c-ink); }
.acc-head .acc-ico { width: 28px; height: 28px; border-radius: 8px; background: var(--c-brand-50); color: var(--c-brand-600); display: grid; place-items: center; transition: transform var(--dur-2) var(--ease), background var(--dur-2) var(--ease), color var(--dur-2) var(--ease); flex: none; }
.acc-item.open .acc-head .acc-ico { transform: rotate(45deg); background: var(--grad-brand); color: #fff; }
.acc-body { max-height: 0; overflow: hidden; transition: max-height var(--dur-3) var(--ease); }
.acc-body-inner { padding: 0 4px 22px; color: var(--c-muted); font-size: 15px; }

/* ===================== 时间线 ===================== */
.timeline { position: relative; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--c-brand-300), transparent); }
.tl-item { position: relative; padding-bottom: 30px; }
.tl-item::before { content: ""; position: absolute; left: -28px; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 3px solid var(--c-brand); box-shadow: 0 0 0 4px var(--c-brand-50); }
.tl-item .tl-date { font-weight: 700; color: var(--c-brand-600); font-size: 14px; }
.tl-item h4 { margin: 4px 0 6px; }
.tl-item p { color: var(--c-muted); font-size: 14.5px; }

/* ===================== CTA 区带 ===================== */
.cta-band { position: relative; border-radius: var(--r-2xl); padding: clamp(40px, 6vw, 72px); overflow: hidden; background: var(--grad-ink); color: #fff; text-align: center; box-shadow: inset 0 1px 0 rgba(255,255,255,.10), var(--shadow-lg); }
.cta-band::before { content:""; position:absolute; inset:0; background: radial-gradient(50% 80% at 80% 0%, rgba(24,198,230,.28), transparent 60%), radial-gradient(50% 90% at 10% 100%, rgba(26,107,255,.34), transparent 60%); }
.cta-band::after { content:""; position:absolute; inset:-40%; pointer-events:none; background: radial-gradient(30% 34% at 50% 50%, rgba(24,198,230,.14), transparent 70%); animation: auroraDrift 16s var(--ease-in-out) infinite alternate; }
.cta-band > * { position: relative; }
.cta-band h2 { color: #fff; }
.cta-band p { color: #B8C6E6; margin: 16px auto 0; max-width: 580px; }
.cta-actions { margin-top: 32px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===================== 面包屑 / 子页 Hero ===================== */
.page-hero { position: relative; padding-top: clamp(50px, 7vw, 84px); padding-bottom: clamp(44px, 6vw, 72px); overflow: hidden; }
.page-hero-bg { position: absolute; inset: 0; z-index: -1; background:
   radial-gradient(50% 70% at 85% 0%, rgba(24,198,230,.14), transparent 60%),
   radial-gradient(55% 80% at 8% 0%, rgba(26,107,255,.13), transparent 55%),
   linear-gradient(180deg,#F4F8FF, #fff); }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--c-faint); margin-bottom: 18px; }
.breadcrumb a:hover { color: var(--c-brand-600); }
.breadcrumb .sep { opacity: .5; }
.page-hero h1 { max-width: 760px; }
.page-hero .lead { max-width: 660px; margin-top: 18px; }
.page-hero-cta { margin-top: 28px; display: flex; gap: 13px; flex-wrap: wrap; }

/* ===================== 分栏图文 ===================== */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.split--reverse .split-media { order: 2; }
.split-media { position: relative; }
@media (max-width: 900px){ .split { grid-template-columns: 1fr; gap: 36px; } .split--reverse .split-media { order: 0; } }
.check-list { display: grid; gap: 14px; margin-top: 24px; }
.check-list li { display: flex; gap: 11px; align-items: flex-start; font-size: 15px; color: var(--c-text); }
.check-list li .icon { width: 22px; height: 22px; flex: none; color: #fff; background: var(--c-mint); border-radius: 50%; padding: 4px; margin-top: 1px; }

/* 装饰玻璃面板 */
.glass-panel { border-radius: var(--r-xl); padding: 26px; background: linear-gradient(150deg, rgba(255,255,255,.9), rgba(246,249,255,.7)); border: 1px solid #fff; box-shadow: var(--shadow-lg); backdrop-filter: blur(8px); }

/* ===================== 数据流图 ===================== */
.flow { display: flex; align-items: stretch; gap: 0; flex-wrap: wrap; }
.flow-node { flex: 1; min-width: 150px; text-align: center; padding: 22px 16px; border-radius: var(--r-lg); background: #fff; border: 1px solid var(--c-line); box-shadow: var(--shadow-sm); position: relative; }
.flow-node .fn-ico { width: 46px; height: 46px; border-radius: 13px; margin: 0 auto 12px; display: grid; place-items: center; background: var(--c-brand-50); color: var(--c-brand-600); }
.flow-node .fn-ico .icon, .flow-node .fn-ico [data-lucide]{ width: 23px; height: 23px; }
.flow-node h4 { font-size: 16px; }
.flow-node p { font-size: 13px; color: var(--c-muted); margin-top: 4px; }
.flow-arrow { display: grid; place-items: center; color: var(--c-brand-300); padding: 0 6px; }
.flow-arrow .icon, .flow-arrow [data-lucide] { width: 26px; height: 26px; animation: arrowNudge 2.4s var(--ease-in-out) infinite; }
.flow-node { transition: transform var(--dur-2) var(--ease-out), box-shadow var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease); }
.flow-node:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--c-brand-100); }
@media (max-width: 820px){ .flow { flex-direction: column; } .flow-arrow { transform: rotate(90deg); padding: 6px 0; } }

/* ===================== 页脚 ===================== */
.site-footer { background: var(--grad-ink); color: #9FB0D4; padding-top: clamp(56px, 7vw, 84px); position: relative; overflow: hidden; }
.site-footer::before { content:""; position:absolute; top:0; left:0; right:0; height:1px; background: linear-gradient(90deg, transparent, rgba(26,107,255,.6), rgba(24,198,230,.6), transparent); }
.footer-top { display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); gap: 40px; padding-bottom: 48px; }
.footer-brand .brand { color: #fff; margin-bottom: 16px; }
.footer-brand .brand .brand-mark { box-shadow: none; }
.footer-brand p { font-size: 14px; color: #8595BC; max-width: 280px; line-height: 1.7; }
.footer-contact { margin-top: 20px; display: grid; gap: 10px; }
.footer-contact a, .footer-contact span { display: inline-flex; align-items: center; gap: 9px; font-size: 14px; color: #AEBCDC; }
.footer-contact .icon, .footer-contact [data-lucide] { width: 17px; height: 17px; color: #1994F3; flex: none; }
.footer-col h5 { color: #fff; font-size: 14px; font-weight: 600; margin-bottom: 18px; letter-spacing: .02em; }
.footer-col a { display: block; font-size: 13.5px; color: #8595BC; padding: 6px 0; transition: color var(--dur-1) var(--ease), transform var(--dur-1) var(--ease); }
.footer-col a:hover { color: #fff; transform: translateX(3px); }
.footer-qr { display: flex; gap: 16px; margin-top: 6px; }
.footer-qr .qr { width: 92px; text-align: center; }
.footer-qr .qr-img { width: 92px; height: 92px; border-radius: var(--r-md); background: #fff; display: grid; place-items: center; color: var(--c-ink); }
.footer-qr .qr-img .icon { width: 40px; height: 40px; color: var(--c-ink); }
.footer-qr .qr span { font-size: 12px; color: #8595BC; margin-top: 8px; display: block; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 24px 0 36px; display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; font-size: 13px; color: #7A8AB2; }
.footer-bottom a { color: #7A8AB2; }
.footer-bottom a:hover { color: #C9D4EC; }
.footer-record { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; }
.footer-record .gongan { display: inline-flex; align-items: center; gap: 7px; }
.footer-record .gongan img { height: 16px; opacity: .7; }
@media (max-width: 900px){ .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; } .footer-brand { grid-column: 1 / -1; } }
@media (max-width: 560px){ .footer-top { grid-template-columns: 1fr; } .footer-bottom { flex-direction: column; align-items: flex-start; } }

/* ===================== 杂项 ===================== */
.kpi-inline { display: flex; gap: 32px; flex-wrap: wrap; }
.kpi-inline .ki .v { font-family: var(--font-num); font-weight: 800; font-size: 28px; color: var(--c-ink); }
.kpi-inline .ki .l { font-size: 13px; color: var(--c-muted); }
.ribbon { position: absolute; top: 16px; right: 16px; font-size: 11px; font-weight: 700; color: #fff; background: var(--grad-brand); padding: 4px 10px; border-radius: var(--r-pill); }
.dot-grid { position: absolute; width: 160px; height: 120px; background-image: radial-gradient(var(--c-brand-300) 1.4px, transparent 1.4px); background-size: 18px 18px; opacity: .5; z-index: -1; }
.blob { position: absolute; border-radius: 50%; filter: blur(60px); opacity: .5; z-index: -1; }

/* ============================================================
   响应式覆盖（置于文件末尾，确保覆盖前面的基础组件规则）
   ============================================================ */
@media (max-width: 940px) {
  .hero-inner { grid-template-columns: 1fr; gap: 36px; }   /* 文案在上、可视化在下 */
  .hero-visual { width: 100%; max-width: 440px; margin-inline: auto; }
  .hero .lead { max-width: 100%; }
  .float-card { display: none !important; }   /* 悬浮装饰卡仅桌面展示 */
}
@media (max-width: 600px) {
  .hero { padding-top: 26px; padding-bottom: 46px; }
  .hero-visual { max-width: 100%; }
  /* 按钮在窄屏纵向铺满，杜绝被裁切 */
  .hero-cta { margin-top: 26px; flex-direction: column; align-items: stretch; }
  .page-hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn, .page-hero-cta .btn { width: 100%; }
  .hero-meta { margin-top: 22px; gap: 14px 18px; }
  .mockup-body { grid-template-columns: 70px 1fr; padding: 14px; gap: 12px; }
  .mk-side .mk-logo, .mk-side .mk-nav { height: 24px; }
  .mk-kpis { gap: 8px; }
  .mk-kpi { padding: 8px 9px; }
  .mk-kpi .v { font-size: 15px; }
  .mk-kpi .l { font-size: 9.5px; }
  .mk-bars { height: 72px; }
  .mockup-bar .mb-url { max-width: 150px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
}