/* =========================================================================
   WEINVENT · 微银合创  新官网设计系统
   配色与整体风格对齐原官网 www.wyhc.tech（取样自其 app.css 与 bg.png）：
     主蓝 #2D8CF0 · 深蓝 #1561E0 · 暗蓝 #0D50BF · 标题墨蓝 #17233D
     品牌渐变 linear-gradient(180deg,#68A9F9,#1745A5)
     首屏波段 #51ABFF → #2F81DD → #1968C7
     金色点缀 #FF9900 · 正文 #515A6E · 描边 #E8EAEC · 浅底 #F7F9FC
   结构语言保留「工程蓝图」：编号章节、发丝分隔线、技术表格、等宽标注。
   ========================================================================= */

/* ---------- 1. Tokens ---------------------------------------------------- */
:root {
  /* Brand blues */
  --blue:        #2D8CF0;
  --blue-mid:    #1561E0;
  --blue-deep:   #0D50BF;
  --blue-dark:   #1745A5;
  --blue-light:  #51ABFF;
  --blue-pale:   #E3F0FF;
  --blue-tint:   #F5F8FF;

  /* Navy (dark surfaces: footer, console) */
  --navy:        #17233D;
  --navy-2:      #1E2F52;
  --navy-3:      #27395F;

  /* Gold accent (原官网 #f90) */
  --gold:        #FF9900;
  --gold-soft:   #FFC061;
  --gold-pale:   #FFF4E0;

  /* Neutrals */
  --paper:       #FFFFFF;
  --paper-2:     #F7F9FC;
  --paper-3:     #EEF3F9;
  --tx-1:        #17233D;
  --tx-2:        #515A6E;
  --tx-3:        #808695;
  --tx-inv-1:    #FFFFFF;
  --tx-inv-2:    rgba(255, 255, 255, .88);
  --tx-inv-3:    rgba(255, 255, 255, .62);

  /* Lines */
  --rule:        #E8EAEC;
  --rule-soft:   #F0F3F7;
  --rule-strong: #DCDEE2;
  --rule-inv:    rgba(255, 255, 255, .30);
  --rule-inv-2:  rgba(255, 255, 255, .14);

  --green:       #19BE6B;
  --red:         #ED4014;

  /* Gradients — the original site's signature */
  --grad-brand:  linear-gradient(180deg, #68A9F9 0%, #1745A5 100%);
  --grad-hero:   linear-gradient(176deg, #51ABFF 0%, #3B93EC 46%, #2F81DD 72%, #1968C7 100%);
  --grad-cta:    linear-gradient(120deg, #1561E0 0%, #2D8CF0 52%, #51ABFF 100%);
  --grad-btn:    linear-gradient(180deg, #4EA1F7 0%, #1561E0 100%);

  --shadow-sm:   0 2px 8px rgba(23, 35, 61, .06);
  --shadow-md:   0 6px 20px rgba(23, 35, 61, .08);
  --shadow-lg:   0 18px 48px -18px rgba(21, 97, 224, .28);

  /* Type — original site uses a bold system sans; headings follow suit,
     monospace carries the technical annotations. */
  --f-head: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei",
            "Source Han Sans SC", system-ui, -apple-system, sans-serif;
  --f-body: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei",
            "Source Han Sans SC", system-ui, -apple-system, sans-serif;
  --f-mono: "SF Mono", "JetBrains Mono", "IBM Plex Mono", "Roboto Mono",
            Menlo, Consolas, "Courier New", monospace;

  /* Metrics */
  --nav-h: 68px;
  --maxw: 1280px;
  --gut: clamp(20px, 4.2vw, 64px);
  --sec-y: clamp(68px, 8.4vw, 132px);
  --radius: 10px;
  --radius-lg: 16px;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

/* ---------- 2. Reset ----------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
/* NOTE: no global `scroll-behavior: smooth` — on long pages it delays the
   initial fragment jump. In-page links are smoothed in site.js instead. */
body {
  margin: 0;
  background: var(--paper);
  color: var(--tx-1);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
/* Reserve intrinsic aspect ratio so lazily-loaded shots don't shift layout.
   :where() keeps it at zero specificity — component rules still win. */
:where(img[width][height]) { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; line-height: 1.28; letter-spacing: -.01em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
table { border-collapse: collapse; width: 100%; }
::selection { background: var(--blue); color: #fff; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--paper-2); }
::-webkit-scrollbar-thumb { background: #C3CDD9; border: 3px solid var(--paper-2); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: var(--blue); }

/* ---------- 3. Typography helpers --------------------------------------- */
.mono { font-family: var(--f-mono); font-variant-numeric: tabular-nums; }
.kicker {
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--blue-mid);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.kicker::before { content: ""; width: 22px; height: 1px; background: currentColor; opacity: .5; }
.kicker--inv { color: var(--gold-soft); }
.kicker--plain::before { display: none; }

.display {
  font-family: var(--f-head);
  font-weight: 700;
  letter-spacing: -.022em;
  line-height: 1.2;
  text-wrap: balance;
}
.h01 { font-size: clamp(34px, 5.4vw, 68px); }
.h02 { font-size: clamp(26px, 3.4vw, 42px); }
.h03 { font-size: clamp(19px, 2vw, 25px); }
.h04 { font-size: clamp(16px, 1.35vw, 18px); }

.lede {
  font-size: clamp(15.5px, 1.32vw, 17.5px);
  color: var(--tx-2);
  line-height: 1.85;
  max-width: 64ch;
}
.lede--inv { color: var(--tx-inv-2); }
.small { font-size: 13.5px; line-height: 1.8; color: var(--tx-3); }
.small--inv { color: var(--tx-inv-3); }

.mark { color: var(--gold); }
.mark-b { color: var(--blue-mid); }
.u-hl { background: linear-gradient(transparent 62%, var(--gold-pale) 62%); padding: 0 .1em; }

/* ---------- 4. Layout ---------------------------------------------------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gut); }
.wrap--wide { max-width: 1520px; }
.sec { padding: var(--sec-y) 0; position: relative; }
.sec--tight { padding: calc(var(--sec-y) * .6) 0; }
.sec--paper { background: var(--paper); }
.sec--paper2 { background: var(--paper-2); }
.sec--tint { background: var(--blue-tint); }

/* Brand gradient band — replaces the old dark sections */
.sec--ink, .sec--blueprint {
  background: var(--grad-brand);
  color: var(--tx-inv-1);
  position: relative;
  overflow: hidden;
}
.sec--ink .lede, .sec--blueprint .lede { color: var(--tx-inv-2); }
.sec--ink .small, .sec--blueprint .small { color: var(--tx-inv-3); }
.sec--blueprint::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--rule-inv-2) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule-inv-2) 1px, transparent 1px);
  background-size: 72px 72px, 72px 72px;
  mask-image: radial-gradient(120% 100% at 50% 0%, #000 20%, transparent 84%);
  -webkit-mask-image: radial-gradient(120% 100% at 50% 0%, #000 20%, transparent 84%);
}
.sec--ink > .wrap, .sec--blueprint > .wrap { position: relative; z-index: 1; }

.grid-bg {
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--rule-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule-soft) 1px, transparent 1px);
  background-size: 48px 48px, 48px 48px;
}

.sec-head { display: grid; gap: 18px; margin-bottom: clamp(34px, 4.4vw, 58px); }
.sec-head--split {
  grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  align-items: end;
  gap: clamp(24px, 5vw, 76px);
}
@media (max-width: 900px) { .sec-head--split { grid-template-columns: 1fr; align-items: start; } }

.rule { height: 1px; background: var(--rule); border: 0; margin: 0; }
.sec--ink .rule, .sec--blueprint .rule { background: var(--rule-inv); }

.rail {
  display: flex; align-items: baseline; gap: 14px;
  font-family: var(--f-mono); font-size: 12px; letter-spacing: .14em;
  color: var(--tx-3); text-transform: uppercase;
}
.rail b { color: var(--blue); font-weight: 600; }
.sec--ink .rail, .sec--blueprint .rail { color: var(--tx-inv-3); }
.sec--ink .rail b, .sec--blueprint .rail b { color: var(--gold-soft); }

/* ---------- 5. Navigation ------------------------------------------------ */
.progress { position: fixed; inset: 0 0 auto 0; height: 3px; z-index: 999; pointer-events: none; }
.progress i {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--blue), var(--gold));
}

/* No backdrop-filter here on purpose: a blurred fixed header over the animated
   hero canvas re-blurs every frame (measured 60fps -> 1fps). */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 900;
  height: var(--nav-h);
  display: flex; align-items: center;
  background: rgba(255, 255, 255, .97);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, box-shadow .3s, background .3s;
}
.nav.is-stuck {
  border-bottom-color: var(--rule);
  box-shadow: 0 2px 12px rgba(23, 35, 61, .06);
}
.nav.is-dark { background: transparent; border-bottom-color: transparent; }
.nav.is-dark.is-stuck {
  background: var(--blue-mid);
  border-bottom-color: rgba(255, 255, 255, .18);
  box-shadow: 0 4px 18px rgba(21, 97, 224, .28);
}
.nav__in {
  width: 100%; max-width: 1520px; margin: 0 auto; padding: 0 var(--gut);
  display: flex; align-items: center; gap: clamp(16px, 3vw, 48px);
}
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand img { height: 32px; width: auto; }
/* .brand img 直接用 logo-gold.png，不再用 filter 压成纯白 */
.brand__txt {
  display: none; font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .16em;
  color: var(--tx-3); padding-left: 12px; border-left: 1px solid var(--rule);
}
.nav.is-dark .brand__txt { color: rgba(255,255,255,.7); border-left-color: rgba(255,255,255,.3); }
@media (min-width: 1260px) { .brand__txt { display: block; } }

.nav__links { display: flex; align-items: center; gap: clamp(4px, 1.5vw, 24px); margin-left: auto; }
.nav__links a {
  position: relative; padding: 8px 2px; font-size: 15px; color: var(--tx-2);
  transition: color .2s;
}
.nav.is-dark .nav__links a { color: rgba(255, 255, 255, .86); }
.nav__links a::after {
  content: ""; position: absolute; left: 50%; right: 50%; bottom: 0; height: 2px;
  background: var(--blue); transition: left .28s var(--ease-out), right .28s var(--ease-out);
}
.nav.is-dark .nav__links a::after { background: #fff; }
.nav__links a:hover { color: var(--blue-mid); }
.nav.is-dark .nav__links a:hover { color: #fff; }
.nav__links a:hover::after, .nav__links a[aria-current]::after { left: 0; right: 0; }
.nav__links a[aria-current] { color: var(--blue-mid); font-weight: 600; }
.nav.is-dark .nav__links a[aria-current] { color: #fff; }

.nav__cta {
  margin-left: 12px; padding: 10px 20px;
  font-size: 14px; font-weight: 600; border-radius: 4px;
  background: var(--grad-btn); color: #fff;
  box-shadow: 0 4px 12px rgba(21, 97, 224, .28);
  transition: transform .2s, box-shadow .25s, filter .25s;
}
.nav.is-dark .nav__cta { background: #fff; color: var(--blue-mid); box-shadow: 0 4px 12px rgba(0,0,0,.14); }
.nav__cta:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(21, 97, 224, .34); }
.nav.is-dark .nav__cta:hover { filter: none; background: var(--gold); color: #fff; }

.burger { display: none; width: 42px; height: 42px; position: relative; margin-left: auto; }
.burger i {
  position: absolute; left: 10px; right: 10px; height: 2px; border-radius: 2px;
  background: var(--tx-1); transition: transform .3s var(--ease), opacity .2s;
}
.nav.is-dark .burger i { background: #fff; }
.burger i:nth-child(1) { top: 15px; } .burger i:nth-child(2) { top: 20.5px; } .burger i:nth-child(3) { top: 26px; }
.burger.is-on i:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.burger.is-on i:nth-child(2) { opacity: 0; }
.burger.is-on i:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

.drawer {
  position: fixed; inset: var(--nav-h) 0 0 0; z-index: 890;
  background: var(--paper); padding: 20px var(--gut) 40px;
  display: none; flex-direction: column; gap: 2px; overflow-y: auto;
  border-top: 1px solid var(--rule);
}
.drawer.is-open { display: flex; }
.drawer a {
  font-family: var(--f-head); font-weight: 600; font-size: 20px;
  padding: 15px 0; border-bottom: 1px solid var(--rule-soft);
}
.drawer a span { font-family: var(--f-mono); font-size: 11px; color: var(--blue); margin-right: 12px; }
@media (max-width: 1080px) {
  .nav__links, .nav__cta { display: none; }
  .burger { display: block; }
}

/* ---------- 6. Hero (原官网首屏波段) ------------------------------------- */
.hero {
  position: relative;
  min-height: min(88vh, 800px);
  padding: calc(var(--nav-h) + clamp(52px, 7vw, 104px)) 0 clamp(52px, 6vw, 88px);
  background: var(--grad-hero);
  color: #fff;
  overflow: hidden;
  display: flex; align-items: center;
}
.hero__canvas {
  position: absolute; inset: 0; width: 100%; height: 100%; opacity: .85;
  will-change: transform; transform: translateZ(0);
}
.hero__veil {
  position: absolute; inset: 0;
  will-change: transform; transform: translateZ(0);
  background:
    radial-gradient(90% 70% at 88% 18%, rgba(255,255,255,.20), transparent 58%),
    radial-gradient(80% 90% at 4% 96%, rgba(13,80,191,.42), transparent 62%),
    linear-gradient(180deg, rgba(81,171,255,.10) 0%, rgba(21,97,224,.18) 68%, rgba(13,80,191,.34) 100%);
}
.hero__grid {
  position: absolute; inset: 0; opacity: .6;
  will-change: transform; transform: translateZ(0);
  background-image:
    linear-gradient(rgba(255,255,255,.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.10) 1px, transparent 1px);
  background-size: 88px 88px, 88px 88px;
  mask-image: radial-gradient(120% 90% at 50% 34%, #000 24%, transparent 76%);
  -webkit-mask-image: radial-gradient(120% 90% at 50% 34%, #000 24%, transparent 76%);
}
.hero__in { position: relative; z-index: 2; width: 100%; }
.hero__cols {
  display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
  gap: clamp(28px, 4vw, 64px); align-items: center;
}
@media (max-width: 980px) { .hero__cols { grid-template-columns: 1fr; } }
.hero h1 { max-width: 17ch; }
.hero__sub { margin-top: 24px; max-width: 52ch; color: rgba(255,255,255,.92); }
.hero__actions { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero__art { position: relative; }
.hero__art img { width: 100%; height: auto; }
@media (max-width: 980px) { .hero__art { max-width: 520px; margin: 8px auto 0; } }

.hero__meta {
  margin-top: clamp(40px, 5vw, 64px);
  border-top: 1px solid var(--rule-inv);
  padding-top: 24px;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 3vw, 40px);
}
.hero__meta--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.hero__meta--6 { grid-template-columns: repeat(3, minmax(0, 1fr)); }   /* 六项排成 3 列 × 2 行 */
.hero__meta--6 dd b { white-space: nowrap; }
.hero__meta b em.arw { margin: 0 .16em; }
.hero__meta dt {
  font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .16em;
  text-transform: uppercase; color: rgba(255, 255, 255, .6); margin-bottom: 8px;
}
.hero__meta dd { margin: 0; }
.hero__meta b {
  font-family: var(--f-head); font-weight: 700;
  font-size: clamp(25px, 2.9vw, 38px); letter-spacing: -.02em; color: #fff;
}
.hero__meta b em { font-style: normal; font-size: .46em; color: var(--gold-soft); margin-left: .3em; letter-spacing: .02em; }
.hero__meta p { font-size: 13px; color: rgba(255, 255, 255, .68); margin-top: 4px; }
@media (max-width: 760px) {
  .hero__meta { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero__meta dt { min-height: 2.5em; }
}

.eyebrow-strip { display: flex; flex-wrap: wrap; gap: 8px 10px; margin-bottom: 26px; }
.tag {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .1em;
  padding: 5px 11px; border-radius: 3px;
  border: 1px solid var(--rule-strong); color: var(--tx-2); background: #fff;
  white-space: nowrap;
}
.hero .tag, .sec--ink .tag, .sec--blueprint .tag {
  border-color: rgba(255, 255, 255, .38); color: #fff; background: rgba(255, 255, 255, .14);
}
.tag--accent { border-color: var(--gold); color: var(--gold); background: var(--gold-pale); }

/* ---------- 7. Buttons --------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 26px; font-size: 15px; font-weight: 600; border-radius: 4px;
  border: 1px solid var(--blue-mid); background: var(--grad-btn); color: #fff;
  box-shadow: 0 6px 16px rgba(21, 97, 224, .26);
  transition: transform .2s, box-shadow .25s, background .25s, color .25s, border-color .25s;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(21, 97, 224, .34); }
.btn--ghost { background: #fff; color: var(--blue-mid); border-color: var(--blue); box-shadow: none; }
.btn--ghost:hover { background: var(--blue-pale); }
.btn--inv { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .6); box-shadow: none; }
.btn--inv:hover { background: #fff; color: var(--blue-mid); border-color: #fff; }
.btn--solid-inv { background: var(--gold); border-color: var(--gold); color: #fff; box-shadow: 0 8px 20px rgba(255, 153, 0, .3); }
.btn--solid-inv:hover { background: #fff; border-color: #fff; color: var(--blue-mid); }
.btn__arw { font-family: var(--f-mono); transition: transform .3s var(--ease-out); }
.btn:hover .btn__arw { transform: translateX(4px); }

.link-arw {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14.5px; font-weight: 600; color: var(--blue-mid);
  border-bottom: 1px solid var(--blue-pale); padding-bottom: 2px;
  transition: border-color .25s, color .25s;
}
.link-arw:hover { color: var(--gold); border-color: var(--gold-soft); }
.link-arw span { transition: transform .3s var(--ease-out); }
.link-arw:hover span { transform: translateX(4px); }

/* ---------- 8. Cards ---------------------------------------------------- */
.cards { display: grid; gap: 18px; }
.cards--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cards--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cards--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.cards--5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
@media (max-width: 1100px) { .cards--4, .cards--5 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 1000px) { .cards--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 720px) { .cards--2, .cards--3, .cards--4, .cards--5 { grid-template-columns: 1fr; } }

.card {
  background: #fff; border: 1px solid var(--rule); border-radius: var(--radius);
  padding: clamp(22px, 2.4vw, 32px);
  display: flex; flex-direction: column; gap: 12px;
  position: relative; overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease-out), box-shadow .3s, border-color .3s;
}
.card::before {
  content: ""; position: absolute; left: 0; top: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--blue-light));
  transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease-out);
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--blue-pale); }
.card:hover::before { transform: scaleX(1); }
.card__no { font-family: var(--f-mono); font-size: 11px; letter-spacing: .14em; color: var(--blue); }
.card h3 { font-family: var(--f-head); font-size: clamp(17px, 1.5vw, 20px); font-weight: 700; }
.card p { font-size: 14.5px; color: var(--tx-2); line-height: 1.8; }
.card__foot { margin-top: auto; padding-top: 10px; display: flex; flex-wrap: wrap; gap: 7px; }
.card__chip {
  font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .04em;
  padding: 3px 9px; border-radius: 3px;
  background: var(--blue-tint); color: var(--blue-mid); border: 1px solid var(--blue-pale);
}
.card__ico {
  width: 46px; height: 46px; border-radius: 10px; display: grid; place-items: center;
  background: linear-gradient(160deg, #EAF3FF, #D8E9FF); color: var(--blue-mid);
  margin-bottom: 4px;
}
.card__ico svg { width: 26px; height: 26px; }

/* Cards inside the brand gradient band */
.cards--ink .card {
  background: rgba(255, 255, 255, .12);
  border-color: var(--rule-inv);
  box-shadow: none;
}
.cards--ink .card h3 { color: #fff; }
.cards--ink .card p { color: var(--tx-inv-2); }
.cards--ink .card__no { color: var(--gold-soft); }
.cards--ink .card__chip { background: rgba(255,255,255,.14); color: #fff; border-color: var(--rule-inv-2); }
.cards--ink .card__ico { background: rgba(255,255,255,.16); color: #fff; }
.cards--ink .card:hover { background: rgba(255, 255, 255, .18); border-color: rgba(255,255,255,.5); }

/* ---------- 9. Data figures --------------------------------------------- */
.figs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--rule); }
.figs--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.figs--5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
@media (max-width: 1060px) { .figs, .figs--5 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .figs, .figs--3, .figs--5 { grid-template-columns: 1fr; } }
.fig { padding: 26px 24px 26px 0; border-bottom: 1px solid var(--rule); }
.figs > .fig + .fig { padding-left: 24px; border-left: 1px solid var(--rule); }
@media (max-width: 1060px) { .figs > .fig + .fig { padding-left: 0; border-left: 0; } }
.fig__v {
  font-family: var(--f-head); font-weight: 700;
  font-size: clamp(28px, 3.5vw, 46px); line-height: 1; letter-spacing: -.025em;
  font-variant-numeric: tabular-nums; color: var(--blue-mid);
}
.fig__v em { font-style: normal; font-size: .42em; font-family: var(--f-mono); font-weight: 400; color: var(--gold); margin-left: .32em; letter-spacing: .04em; }
.fig__k { margin-top: 13px; font-size: 14px; font-weight: 600; color: var(--tx-1); }
.fig__n { margin-top: 6px; font-family: var(--f-mono); font-size: 11px; color: var(--tx-3); letter-spacing: .04em; }
.sec--ink .figs, .sec--blueprint .figs { border-top-color: var(--rule-inv); }
.sec--ink .fig, .sec--blueprint .fig { border-bottom-color: var(--rule-inv); }
.sec--ink .figs > .fig + .fig, .sec--blueprint .figs > .fig + .fig { border-left-color: var(--rule-inv); }
.sec--ink .fig__v, .sec--blueprint .fig__v { color: #fff; }
.sec--ink .fig__v em, .sec--blueprint .fig__v em { color: var(--gold-soft); }
.sec--ink .fig__k, .sec--blueprint .fig__k { color: #fff; }
.sec--ink .fig__n, .sec--blueprint .fig__n { color: var(--tx-inv-3); }

/* ---------- 10. Tables --------------------------------------------------- */
.tbl-wrap {
  border: 1px solid var(--rule); border-radius: var(--radius);
  background: #fff; overflow-x: auto; box-shadow: var(--shadow-sm);
}
.tbl { min-width: 620px; font-size: 14px; }
.tbl caption {
  text-align: left; padding: 16px 22px; border-bottom: 1px solid var(--rule);
  font-family: var(--f-mono); font-size: 11.5px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--tx-3); background: var(--paper-2);
}
.tbl th, .tbl td { padding: 13px 22px; text-align: left; border-bottom: 1px solid var(--rule-soft); vertical-align: top; }
.tbl th {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--tx-3); font-weight: 500;
  background: var(--paper-2); border-bottom-color: var(--rule);
}
.tbl tbody tr:last-child td { border-bottom: 0; }
.tbl tbody tr:hover { background: var(--blue-tint); }
.tbl td strong { color: var(--tx-1); font-weight: 600; }
.tbl .mono { color: var(--blue-mid); }

.tbl--ink th { background: rgba(255,255,255,.14); color: rgba(255,255,255,.78); border-bottom-color: var(--rule-inv); }
.tbl--ink caption { background: rgba(255,255,255,.10); color: var(--tx-inv-2); border-bottom-color: var(--rule-inv); }
.tbl--ink td { border-bottom-color: var(--rule-inv-2); color: var(--tx-inv-2); }
.tbl--ink td strong { color: #fff; }
.tbl--ink .mono { color: var(--gold-soft); }
.tbl--ink tbody tr:hover { background: rgba(255,255,255,.08); }
.sec--ink .tbl-wrap, .sec--blueprint .tbl-wrap {
  background: rgba(255, 255, 255, .08); border-color: var(--rule-inv); box-shadow: none;
}

/* ---------- 11. Steps / flow -------------------------------------------- */
.flow { display: grid; border-top: 1px solid var(--rule); counter-reset: fl; }
.flow__i {
  display: grid; grid-template-columns: 88px minmax(0, 1fr) minmax(0, 1.25fr);
  gap: clamp(16px, 3vw, 48px); padding: 28px 0;
  border-bottom: 1px solid var(--rule); align-items: start;
  counter-increment: fl;
}
@media (max-width: 860px) { .flow__i { grid-template-columns: 1fr; gap: 10px; } }
.flow__n { font-family: var(--f-mono); font-size: 12px; letter-spacing: .12em; color: var(--blue); }
.flow__n::before { content: counter(fl, decimal-leading-zero); }
.flow__t { font-family: var(--f-head); font-weight: 700; font-size: clamp(17px, 1.6vw, 21px); }
.flow__t small { display: block; font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; color: var(--tx-3); margin-top: 6px; font-weight: 400; }
.flow__d { font-size: 14.5px; color: var(--tx-2); line-height: 1.85; }
.flow__d code, .flow__d .mono {
  font-family: var(--f-mono); font-size: 12.5px;
  background: var(--blue-tint); color: var(--blue-mid); padding: 1px 6px; border-radius: 3px;
}
.sec--blueprint .flow, .sec--ink .flow { border-top-color: var(--rule-inv); }
.sec--blueprint .flow__i, .sec--ink .flow__i { border-bottom-color: var(--rule-inv-2); }
.sec--blueprint .flow__t, .sec--ink .flow__t { color: #fff; }
.sec--blueprint .flow__t small, .sec--ink .flow__t small { color: var(--tx-inv-3); }
.sec--blueprint .flow__d, .sec--ink .flow__d { color: var(--tx-inv-2); }
.sec--blueprint .flow__n, .sec--ink .flow__n { color: var(--gold-soft); }
.sec--blueprint .flow__d code, .sec--ink .flow__d code,
.sec--blueprint .flow__d .mono, .sec--ink .flow__d .mono {
  background: rgba(255,255,255,.14); color: #fff;
}

.chain { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; }
.chain__n {
  background: #fff; border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow-sm);
  border-top: 3px solid var(--blue);
}
.chain__n b { display: block; font-family: var(--f-mono); font-size: 11px; letter-spacing: .1em; color: var(--blue); margin-bottom: 8px; }
.chain__n span { font-family: var(--f-head); font-weight: 700; font-size: 15px; }
.chain__n i { display: block; font-style: normal; font-size: 12.5px; color: var(--tx-3); margin-top: 6px; line-height: 1.6; }

/* ---------- 12. Console / IR demo --------------------------------------- */
.console {
  border-radius: var(--radius-lg); overflow: hidden;
  background: var(--navy);
  box-shadow: 0 26px 60px -24px rgba(13, 80, 191, .55);
  display: grid; grid-template-columns: minmax(0, 336px) minmax(0, 1fr);
  min-height: 470px; color: #fff;
}
@media (max-width: 980px) { .console { grid-template-columns: 1fr; } }
.console__side {
  border-right: 1px solid rgba(255, 255, 255, .12);
  padding: 24px 22px; display: flex; flex-direction: column; gap: 12px;
  background: rgba(255, 255, 255, .03);
}
@media (max-width: 980px) { .console__side { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.12); } }
.console__q {
  display: block; text-align: left; width: 100%;
  padding: 12px 14px; border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, .16);
  font-size: 14px; color: rgba(255, 255, 255, .82); line-height: 1.6;
  transition: border-color .25s, background .25s, color .25s;
}
.console__q:hover { border-color: var(--gold); color: #fff; background: rgba(255, 153, 0, .12); }
.console__q.is-on { border-color: var(--gold); background: rgba(255, 153, 0, .18); color: #fff; }
.console__q em { display: block; font-family: var(--f-mono); font-size: 10px; letter-spacing: .12em; font-style: normal; color: rgba(255,255,255,.5); margin-bottom: 5px; }
.console__main { padding: 24px 26px 28px; display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.console__tabs { display: flex; gap: 2px; flex-wrap: wrap; border-bottom: 1px solid rgba(255,255,255,.14); }
.console__tab {
  padding: 9px 15px; font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em;
  color: rgba(255,255,255,.55); border-bottom: 2px solid transparent; margin-bottom: -1px;
  transition: color .2s, border-color .2s;
}
.console__tab:hover { color: #fff; }
.console__tab.is-on { color: #fff; border-bottom-color: var(--gold); }
.console__pane { display: none; flex: 1; min-height: 0; }
.console__pane.is-on { display: block; animation: fade .4s var(--ease-out); }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

pre.code {
  margin: 0; font-family: var(--f-mono); font-size: 12.4px; line-height: 1.85;
  color: #C8D6EE; overflow-x: auto; white-space: pre; padding: 4px 0;
}
pre.code .k { color: #7FB2FF; }
pre.code .s { color: #FFC061; }
pre.code .c { color: #6C7C9C; }
pre.code .n { color: #6FE0B0; }
pre.code .hl { background: rgba(255, 153, 0, .18); border-radius: 3px; }

.steps-list { display: grid; gap: 8px; }
.steps-list li {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 11px 14px; border-radius: 6px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .1);
  opacity: .4; transition: opacity .4s, background .4s, border-color .4s;
}
.steps-list li.is-done { opacity: 1; background: rgba(45, 140, 240, .16); border-color: rgba(81, 171, 255, .45); }
.steps-list li.is-done .st-i { background: var(--green); border-color: var(--green); color: #fff; }
.st-i {
  flex: 0 0 auto; width: 20px; height: 20px; border-radius: 4px;
  border: 1px solid rgba(255,255,255,.3);
  display: grid; place-items: center; font-family: var(--f-mono); font-size: 11px; color: #fff; margin-top: 2px;
}
.steps-list b { display: block; color: #fff; font-size: 14px; font-weight: 600; }
.steps-list span { font-family: var(--f-mono); font-size: 11.5px; color: rgba(255,255,255,.6); }

.mini-tbl { width: 100%; font-size: 13.5px; }
.mini-tbl th, .mini-tbl td { padding: 9px 12px; text-align: right; border-bottom: 1px solid rgba(255,255,255,.1); font-variant-numeric: tabular-nums; }
.mini-tbl th:first-child, .mini-tbl td:first-child { text-align: left; }
.mini-tbl th { font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .08em; color: rgba(255,255,255,.55); font-weight: 400; }

/* ---------- 13. Logo & certificate walls -------------------------------- */
/* Static grids rather than a scrolling marquee: an animated ancestor that
   translates does not reliably re-trigger lazy image loading in Chromium, so
   most cells stayed blank. A grid also reads better and loads on scroll. */
.logo-grid {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(188px, 1fr));
}
.logo-cell {
  min-height: 96px; display: grid; place-items: center; padding: 20px;
  background: #fff; border: 1px solid var(--rule); border-radius: var(--radius);
  transition: box-shadow .3s, border-color .3s;
}
.logo-cell img {
  width: 100%; height: auto; max-height: 54px; object-fit: contain;
  /* 客户标识常驻彩色显示（此前是灰度 72% 透明度、悬停才恢复彩色） */
  filter: none; opacity: 1;
}
.logo-cell:hover { box-shadow: var(--shadow-md); border-color: var(--blue-pale); }

.cert-grid {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(138px, 1fr));
}
.cert-cell {
  background: #fff; border: 1px solid var(--rule); border-radius: 8px; padding: 7px;
  transition: transform .35s var(--ease-out), box-shadow .35s, border-color .35s;
}
.cert-cell img { width: 100%; height: auto; border-radius: 4px; }
.cert-cell:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--blue-pale); }

/* ---------- 14. Accordion ----------------------------------------------- */
.acc { border-top: 1px solid var(--rule); }
.acc__i { border-bottom: 1px solid var(--rule); }
.acc__h { width: 100%; display: flex; align-items: center; gap: clamp(14px, 2.2vw, 30px); padding: 20px 0; text-align: left; }
.acc__h .n { font-family: var(--f-mono); font-size: 11.5px; color: var(--blue); letter-spacing: .1em; flex: 0 0 auto; }
.acc__h .t { font-family: var(--f-head); font-weight: 700; font-size: clamp(16px, 1.5vw, 20px); flex: 1; }
.acc__h .x {
  flex: 0 0 auto; width: 26px; height: 26px; border-radius: 50%;
  border: 1px solid var(--rule-strong); position: relative;
  transition: background .3s, border-color .3s, transform .4s var(--ease);
}
.acc__h .x::before, .acc__h .x::after { content: ""; position: absolute; background: var(--blue-mid); transition: background .3s, opacity .3s; }
.acc__h .x::before { left: 50%; top: 7px; bottom: 7px; width: 1.5px; transform: translateX(-50%); }
.acc__h .x::after { top: 50%; left: 7px; right: 7px; height: 1.5px; transform: translateY(-50%); }
.acc__i:hover .acc__h .x { border-color: var(--blue); }
.acc__i.is-open .acc__h .x { background: var(--blue); border-color: var(--blue); transform: rotate(180deg); }
.acc__i.is-open .acc__h .x::before { opacity: 0; }
.acc__i.is-open .acc__h .x::after { background: #fff; }
.acc__b { overflow: hidden; max-height: 0; transition: max-height .45s var(--ease-out); }
.acc__b > div { padding: 0 0 26px; display: grid; grid-template-columns: minmax(0,1.06fr) minmax(0,.94fr); gap: clamp(20px, 3.6vw, 54px); }
@media (max-width: 860px) { .acc__b > div { grid-template-columns: 1fr; } }
.sec--ink .acc, .sec--blueprint .acc { border-top-color: var(--rule-inv); }
.sec--ink .acc__i, .sec--blueprint .acc__i { border-bottom-color: var(--rule-inv-2); }
.sec--ink .acc__h .n, .sec--blueprint .acc__h .n { color: var(--gold-soft); }
.sec--ink .acc__h .t, .sec--blueprint .acc__h .t { color: #fff; }
.sec--ink .acc__h .x, .sec--blueprint .acc__h .x { border-color: var(--rule-inv); }
.sec--ink .acc__h .x::before, .sec--ink .acc__h .x::after,
.sec--blueprint .acc__h .x::before, .sec--blueprint .acc__h .x::after { background: #fff; }
.sec--ink .acc__i.is-open .acc__h .x, .sec--blueprint .acc__i.is-open .acc__h .x { background: var(--gold); border-color: var(--gold); }
.sec--ink .acc__i.is-open .acc__h .x::after, .sec--blueprint .acc__i.is-open .acc__h .x::after { background: #fff; }

.bullets li { position: relative; padding-left: 20px; margin-bottom: 9px; font-size: 14.5px; color: var(--tx-2); line-height: 1.8; }
.bullets li::before { content: ""; position: absolute; left: 0; top: .72em; width: 7px; height: 2px; border-radius: 2px; background: var(--blue); }
.sec--ink .bullets li, .sec--blueprint .bullets li { color: var(--tx-inv-2); }
.sec--ink .bullets li::before, .sec--blueprint .bullets li::before { background: var(--gold-soft); }
.bullets--tight li { margin-bottom: 6px; font-size: 14px; }

/* ---------- 14b. Tool rows (合规审核智能体 · 能力单元) ------------------- */
.tool-list { border-top: 1px solid var(--rule); }
.tool-row {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(24px, 4.2vw, 64px); align-items: center;
  padding: clamp(32px, 4.2vw, 58px) 0;
  border-bottom: 1px solid var(--rule);
}
.tool-row--flip .tool-row__media { order: 2; }
@media (max-width: 940px) {
  .tool-row { grid-template-columns: 1fr; gap: 22px; }
  .tool-row--flip .tool-row__media { order: 0; }
}
.tool-row__body { display: grid; gap: 14px; align-content: start; }
.tool-row__media { min-width: 0; }
.tool-row--feature .shot { border-color: var(--blue-pale); box-shadow: 0 26px 60px -28px rgba(21, 97, 224, .45); }
.tool-row--feature .rail b { color: var(--gold); }
/* The flagship row stacks so the dense real-system screenshot gets real width. */
.tool-row--stack { grid-template-columns: 1fr; gap: clamp(22px, 3vw, 36px); }
.tool-row--stack .tool-row__media { max-width: 960px; }
.tool-row--stack .tool-row__body { max-width: 78ch; }

/* ---------- 14c. Video player (运行中的系统) ---------------------------- */
.video-figure { margin: 0; }
.video-player {
  width: 100%; height: auto; display: block;
  border-radius: var(--radius-lg);
  background: #0B1220;
  border: 1px solid var(--rule);
  box-shadow: 0 30px 70px -32px rgba(21, 97, 224, .45);
  aspect-ratio: 16 / 9;
}
.video-player:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.video-cap {
  margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--rule);
  display: flex; flex-wrap: wrap; gap: 6px 20px; justify-content: space-between;
  font-family: var(--f-mono); font-size: 11.5px; color: var(--tx-3); letter-spacing: .04em;
}

/* ---------- 14e. Pain-point result strip (首页 01) ----------------------- */
.pain-out {
  margin-top: 14px; padding: 10px 14px; border-radius: 8px;
  background: var(--gold-pale); color: var(--tx-1);
  font-size: 13.5px; line-height: 1.6;
}
.pain-out b { color: var(--gold); font-weight: 600; margin-right: .5em; letter-spacing: .02em; }

/* ---------- 15. Figures / screenshots ----------------------------------- */
.shot {
  /* figures carry a UA default margin of 1em 40px — without this reset every
     screenshot renders 80px narrower than its column (and 80px narrower on mobile). */
  margin: 0;
  border: 1px solid var(--rule); border-radius: var(--radius); background: #fff;
  padding: 10px; box-shadow: var(--shadow-md);
}
.shot img { width: 100%; border-radius: 5px; }
.shot__cap {
  margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--rule-soft);
  font-family: var(--f-mono); font-size: 11px; color: var(--tx-3); letter-spacing: .04em;
  display: flex; justify-content: space-between; gap: 12px;
}
.illus { width: 100%; height: auto; }

.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(26px, 4.4vw, 68px); align-items: center; }
.split--wide-l { grid-template-columns: minmax(0, 1.14fr) minmax(0, .86fr); }
.split--wide-r { grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr); }
@media (max-width: 940px) { .split, .split--wide-l, .split--wide-r { grid-template-columns: 1fr; } }
.split--top { align-items: start; }

/* ---------- 16. Callout / note ------------------------------------------ */
.callout {
  border-left: 3px solid var(--blue); padding: 6px 0 6px 24px;
  font-family: var(--f-head); font-weight: 600;
  font-size: clamp(17px, 1.85vw, 24px); line-height: 1.6; letter-spacing: -.012em;
}
.callout cite { display: block; margin-top: 14px; font-family: var(--f-mono); font-weight: 400; font-size: 11.5px; letter-spacing: .1em; font-style: normal; color: var(--tx-3); }
.sec--ink .callout, .sec--blueprint .callout { border-left-color: var(--gold); }
.sec--ink .callout cite, .sec--blueprint .callout cite { color: var(--tx-inv-3); }

.note {
  border: 1px solid var(--blue-pale); border-left: 3px solid var(--blue);
  border-radius: 6px; padding: 16px 18px;
  font-size: 13.5px; color: var(--tx-2); line-height: 1.8; background: var(--blue-tint);
}
.note b { color: var(--blue-mid); }
.sec--ink .note, .sec--blueprint .note {
  background: rgba(255, 255, 255, .12); border-color: var(--rule-inv); border-left-color: var(--gold);
  color: var(--tx-inv-2);
}
.sec--ink .note b, .sec--blueprint .note b { color: #fff; }

/* ---------- 17. CTA ----------------------------------------------------- */
.cta { position: relative; background: var(--grad-cta); color: #fff; overflow: hidden; }
.cta__bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(75% 120% at 88% 8%, rgba(255, 153, 0, .22), transparent 56%),
    radial-gradient(80% 120% at 2% 96%, rgba(255, 255, 255, .16), transparent 58%);
}
.cta__in {
  position: relative; z-index: 2; padding: clamp(54px, 6.6vw, 96px) 0;
  display: grid; grid-template-columns: minmax(0,1.2fr) minmax(0,.8fr);
  gap: clamp(26px, 4.6vw, 64px); align-items: center;
}
@media (max-width: 900px) { .cta__in { grid-template-columns: 1fr; } }
.cta__card {
  border: 1px solid rgba(255, 255, 255, .3); border-radius: var(--radius-lg);
  padding: 24px 22px; display: grid; gap: 14px;
  background: rgba(255, 255, 255, .1);
}
.cta__card dl { display: grid; gap: 12px; margin: 0; }
.cta__card dt { font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .14em; color: rgba(255,255,255,.62); text-transform: uppercase; }
.cta__card dd { margin: 3px 0 0; font-size: 15px; color: #fff; }

/* ---------- 18. Footer -------------------------------------------------- */
.foot { background: var(--navy); color: rgba(255, 255, 255, .78); padding: clamp(48px, 5.6vw, 76px) 0 0; }
.foot__top { display: grid; grid-template-columns: minmax(0, 1.3fr) repeat(3, minmax(0, .9fr)); gap: clamp(24px, 3.6vw, 52px); padding-bottom: 44px; }
@media (max-width: 980px) { .foot__top { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .foot__top { grid-template-columns: 1fr; } }
/* width:auto is REQUIRED here: the <img> carries width="451" as a presentational
   hint, so without it the width resolves to 451px and max-width:100% clamps it to
   the column width (326px) while height stays 32px — a 198% horizontal stretch. */
.foot img.logo { height: 40px; width: auto; }
.foot h4 { font-family: var(--f-mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: rgba(255,255,255,.5); margin-bottom: 16px; font-weight: 500; }
.foot li { margin-bottom: 10px; font-size: 14px; }
.foot a:hover { color: var(--gold-soft); }
.foot__bar {
  border-top: 1px solid rgba(255, 255, 255, .12); padding: 20px 0 28px;
  display: flex; flex-wrap: wrap; gap: 10px 26px; justify-content: space-between;
  font-family: var(--f-mono); font-size: 11.5px; color: rgba(255,255,255,.5); letter-spacing: .03em;
}
.foot__bar a:hover { color: var(--gold-soft); }

/* ---------- 19. Reveal -------------------------------------------------- */
/* Gated on .js: without JavaScript the content must still be fully visible. */
.js .rv { opacity: 0; transform: translateY(20px); transition: opacity .75s var(--ease-out), transform .75s var(--ease-out); }
.js .rv.is-in { opacity: 1; transform: none; }
.rv-d1 { transition-delay: .06s; } .rv-d2 { transition-delay: .12s; }
.rv-d3 { transition-delay: .18s; } .rv-d4 { transition-delay: .24s; }
.rv-d5 { transition-delay: .30s; } .rv-d6 { transition-delay: .36s; }
@media (prefers-reduced-motion: reduce) {
  .js .rv { opacity: 1; transform: none; transition: none; }
  .cert-cell:hover { transform: none; }
}

/* ---------- 20. Page head & misc ---------------------------------------- */
.page-head {
  padding: calc(var(--nav-h) + clamp(52px, 6.4vw, 96px)) 0 clamp(38px, 4.6vw, 62px);
  background: var(--grad-hero); color: #fff; position: relative; overflow: hidden;
}
.page-head::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.1) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px;
  mask-image: linear-gradient(180deg, #000, transparent 92%);
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 92%);
}
.page-head__in { position: relative; z-index: 2; }
.page-head__spark { position: absolute; right: -40px; bottom: -30px; width: min(420px, 38vw); opacity: .5; z-index: 1; }
@media (max-width: 900px) { .page-head__spark { display: none; } }
.crumb { font-family: var(--f-mono); font-size: 11px; letter-spacing: .12em; color: rgba(255,255,255,.62); margin-bottom: 20px; }
.crumb a:hover { color: #fff; }
.crumb span { opacity: .5; margin: 0 8px; }

.pill-row { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  font-family: var(--f-mono); font-size: 11px; padding: 5px 11px; border-radius: 3px;
  border: 1px solid var(--rule-strong); color: var(--tx-2); background: #fff;
}

.arch { display: grid; gap: 8px; }
.arch__l {
  background: #fff; border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 18px 20px; display: grid; grid-template-columns: 148px minmax(0,1fr);
  gap: 20px; align-items: center; box-shadow: var(--shadow-sm);
}
@media (max-width: 760px) { .arch__l { grid-template-columns: 1fr; gap: 10px; } }
.arch__k { font-family: var(--f-mono); font-size: 11px; letter-spacing: .06em; color: var(--blue-mid); }
.arch__v { display: flex; flex-wrap: wrap; gap: 6px; }
.arch__v span {
  font-size: 13px; padding: 5px 11px; border-radius: 4px;
  border: 1px solid var(--rule); color: var(--tx-2); background: var(--paper-2);
}
.arch__l--hl { background: linear-gradient(120deg, #EAF3FF, #F7FBFF); border-color: var(--blue-pale); }
.arch__l--hl .arch__k { color: var(--blue-deep); }
.arch__l--hl .arch__v span { background: #fff; border-color: var(--blue-pale); color: var(--blue-deep); font-weight: 500; }

.sec--ink .arch__l, .sec--blueprint .arch__l {
  background: rgba(255, 255, 255, .1); border-color: var(--rule-inv); box-shadow: none;
}
.sec--ink .arch__k, .sec--blueprint .arch__k { color: var(--gold-soft); }
.sec--ink .arch__v span, .sec--blueprint .arch__v span {
  background: rgba(255, 255, 255, .12); border-color: var(--rule-inv-2); color: var(--tx-inv-2);
}
.sec--ink .arch__l--hl, .sec--blueprint .arch__l--hl { background: rgba(255, 255, 255, .2); border-color: rgba(255,255,255,.42); }
.sec--ink .arch__l--hl .arch__k, .sec--blueprint .arch__l--hl .arch__k { color: #fff; }
.sec--ink .arch__l--hl .arch__v span, .sec--blueprint .arch__l--hl .arch__v span {
  background: rgba(255,255,255,.9); border-color: transparent; color: var(--blue-deep);
}

.kv { display: grid; gap: 10px; }
.kv > div {
  background: #fff; border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 16px 18px; display: grid; grid-template-columns: 130px minmax(0,1fr);
  gap: 18px; align-items: baseline; box-shadow: var(--shadow-sm);
}
@media (max-width: 620px) { .kv > div { grid-template-columns: 1fr; gap: 6px; } }
.kv dt, .kv .k { font-family: var(--f-mono); font-size: 11px; letter-spacing: .1em; color: var(--blue-mid); text-transform: uppercase; }
.kv .v { font-size: 14.5px; color: var(--tx-2); }

.matrix { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
@media (max-width: 820px) { .matrix { grid-template-columns: 1fr; } }
.matrix > div {
  background: #fff; border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 24px 22px; box-shadow: var(--shadow-sm); border-top: 3px solid var(--blue);
}
.matrix h4 { font-family: var(--f-head); font-weight: 700; font-size: 18px; margin-bottom: 10px; }
.matrix .tagline { font-family: var(--f-mono); font-size: 11px; color: var(--gold); letter-spacing: .1em; margin-bottom: 10px; }

.stack { display: grid; gap: 14px; }
.stack--lg { gap: 24px; }
.hr-dot { display: flex; align-items: center; gap: 14px; color: var(--tx-3); font-family: var(--f-mono); font-size: 11px; letter-spacing: .12em; }
.hr-dot::before, .hr-dot::after { content: ""; height: 1px; background: var(--rule); flex: 1; }
.sec--ink .hr-dot, .sec--blueprint .hr-dot { color: var(--tx-inv-3); }
.sec--ink .hr-dot::before, .sec--ink .hr-dot::after,
.sec--blueprint .hr-dot::before, .sec--blueprint .hr-dot::after { background: var(--rule-inv-2); }

.badge-line { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: center; }
.badge {
  display: inline-flex; align-items: center; gap: 8px; border-radius: 4px;
  font-size: 13px; padding: 7px 13px; border: 1px solid var(--rule); background: #fff;
  box-shadow: var(--shadow-sm);
}
.badge b { font-family: var(--f-mono); font-size: 11px; color: var(--gold); letter-spacing: .06em; }

/* Tool icon glyphs */
.tool-ico { width: 26px; height: 26px; stroke: currentColor; fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.tool-ico .acc-fill { fill: var(--gold); stroke: none; }