/* ==========================================================================
   网新易得 EDATA — 品牌站点样式
   Design system: dark compute-tech / GPU infra
   ========================================================================== */

/* ---------- 0. 字体（自托管） ----------
   Inter 为可变字体，单个 85KB woff2 覆盖 400–800 全部字重。
   原先依赖 fonts.googleapis.com：该域名在中国大陆常被阻断，
   且属于渲染阻塞的第三方请求。自托管后首屏不再受外部网络影响。
   中文回落到系统字体（PingFang SC / 微软雅黑），无需额外下载。 */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url("../fonts/inter-latin-var.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
                 U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC,
                 U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---------- 1. Tokens ---------- */
:root {
  --bg:          #04060d;
  --bg-elev:     #080c16;
  --bg-elev-2:   #0c1220;
  --surface:     rgba(255, 255, 255, 0.035);
  --surface-2:   rgba(255, 255, 255, 0.06);
  --line:        rgba(255, 255, 255, 0.085);
  --line-strong: rgba(255, 255, 255, 0.16);

  --txt:    #e9eef8;
  --txt-2:  #98a5bd;
  --txt-3:  #8b96ae;   /* 4.45:1 → 6.82:1（正文小字需 ≥4.5:1） */

  --cyan:   #22d3ee;
  --indigo: #6366f1;
  --violet: #a855f7;
  --lime:   #4ade80;
  --amber:  #fbbf24;

  --grad-brand: linear-gradient(118deg, #22d3ee 0%, #6366f1 52%, #a855f7 100%);
  --grad-text:  linear-gradient(100deg, #7dd3fc 0%, #a5b4fc 45%, #d8b4fe 100%);

  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 22px;
  --r-xl: 30px;

  --shadow-sm: 0 2px 10px rgba(0, 0, 0, .35);
  --shadow-md: 0 18px 48px -18px rgba(0, 0, 0, .8);
  --shadow-lg: 0 40px 90px -40px rgba(34, 211, 238, .35);

  --nav-h: 74px;    /* 导航条本身高度 */
  --top-h: 34px;    /* 顶部服务条高度（热线 / 快捷入口） */
  --ease: cubic-bezier(.22, .8, .28, 1);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
          "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
          "Noto Sans SC", sans-serif;
  --font-num: "Inter", "SF Mono", "JetBrains Mono", ui-monospace, monospace;
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--top-h) + var(--nav-h) + 18px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--txt);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.nav-open { overflow: hidden; }

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; border: 0; background: none; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }

h1, h2, h3 {
  margin: 0;
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: -.015em;
}
p { margin: 0; }

::selection { background: rgba(99, 102, 241, .42); color: #fff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: #1e2740;
  border-radius: 99px;
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: #2b3654; }

/* ---------- 3. Ambient background ---------- */
.bg-layer {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.bg-grid {
  position: absolute;
  inset: -2px;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, .032) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, .032) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 20%, transparent 78%);
}
.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: .5;
}
.bg-orb.o1 { width: 620px; height: 620px; top: -240px; left: -140px;
  background: radial-gradient(circle, rgba(34, 211, 238, .38), transparent 68%); }
.bg-orb.o2 { width: 560px; height: 560px; top: 6%; right: -200px;
  background: radial-gradient(circle, rgba(139, 92, 246, .34), transparent 68%); }
.bg-orb.o3 { width: 700px; height: 700px; bottom: -320px; left: 32%;
  background: radial-gradient(circle, rgba(99, 102, 241, .24), transparent 70%); }
.bg-noise {
  position: absolute;
  inset: 0;
  opacity: .16;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
}

/* ---------- 4. Layout ---------- */
.page { position: relative; z-index: 1; }

.container {
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 26px;
}
.container.narrow { max-width: 900px; }

.section { padding: 110px 0; position: relative; }
.section.tight { padding: 76px 0; }
.section-divider {
  height: 1px;
  border: 0;
  margin: 0;
  background: linear-gradient(90deg, transparent, var(--line-strong) 22%, var(--line-strong) 78%, transparent);
}

/* ---------- 5. Type ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan));
}
.eyebrow.center::after {
  content: "";
  width: 22px;
  height: 1px;
  background: linear-gradient(270deg, transparent, var(--cyan));
}

.h-display {
  font-size: clamp(1.95rem, 3.85vw, 3.2rem);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -.028em;
}
.h-1 { font-size: clamp(2.1rem, 4.2vw, 3.25rem); font-weight: 700; letter-spacing: -.028em; line-height: 1.12; text-wrap: balance; word-break: keep-all; }
.h-2 { font-size: clamp(1.5rem, 3.2vw, 2.55rem); font-weight: 680; letter-spacing: -.022em; line-height: 1.22; text-wrap: balance; word-break: keep-all; }
.h-3 { font-size: clamp(1.05rem, 1.7vw, 1.4rem); font-weight: 640; line-height: 1.32; text-wrap: balance; }
.h-4 { font-size: 1.03rem; font-weight: 640; line-height: 1.4; }

.grad-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  font-size: clamp(1rem, 1.35vw, 1.14rem);
  color: var(--txt-2);
  line-height: 1.85;
}
.muted { color: var(--txt-2); }
.dim   { color: var(--txt-3); }
.mono  { font-family: var(--font-num); font-variant-numeric: tabular-nums; }

.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head .h-2 { margin: 18px 0 16px; }
.section-head.center .lead { margin-inline: auto; max-width: 620px; }

/* ---------- 6. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: .94rem;
  font-weight: 600;
  letter-spacing: .01em;
  white-space: nowrap;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease),
              background .25s var(--ease), border-color .25s var(--ease), color .25s;
}
.btn svg { width: 16px; height: 16px; flex: none; }

.btn-primary {
  color: #04060d;
  background: var(--grad-brand);
  background-size: 180% 180%;
  box-shadow: 0 10px 30px -12px rgba(34, 211, 238, .6);
}
.btn-primary:hover {
  transform: translateY(-2px);
  background-position: 100% 0;
  box-shadow: 0 18px 44px -14px rgba(99, 102, 241, .72);
}

.btn-ghost {
  color: var(--txt);
  border: 1px solid var(--line-strong);
  background: var(--surface);
  backdrop-filter: blur(12px);
}
.btn-ghost:hover {
  transform: translateY(-2px);
  border-color: rgba(34, 211, 238, .55);
  background: rgba(34, 211, 238, .08);
}

.btn-sm { padding: 10px 20px; font-size: .875rem; }
.btn-lg { padding: 16px 34px; font-size: 1rem; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: .92rem;
  font-weight: 600;
  color: var(--cyan);
  transition: gap .25s var(--ease), color .25s;
}
.link-arrow::after { content: "→"; transition: transform .25s var(--ease); }
.link-arrow:hover { gap: 11px; }
.link-arrow:hover::after { transform: translateX(2px); }

/* ---------- 7. Nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: calc(var(--top-h) + var(--nav-h));
  display: flex;
  flex-direction: column;
  align-items: stretch;
  transition: background .35s var(--ease), border-color .35s, backdrop-filter .35s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(4, 6, 13, .78);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom-color: var(--line);
}

/* 顶部服务条：热线 + 快捷入口。滚动时收起，只留导航条 */
.topbar {
  flex: 0 0 auto;
  height: var(--top-h);
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, .055);
  background: rgba(6, 9, 16, .55);
  transition: height .32s var(--ease), opacity .24s, border-color .24s;
}
.nav.scrolled .topbar { height: 0; opacity: 0; border-color: transparent; }
.topbar-inner {
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 26px;
  height: var(--top-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  font-size: .78rem;
  color: var(--txt-3);
  white-space: nowrap;
}
.tb-hot { display: flex; align-items: center; gap: 7px; }
.tb-hot svg { width: 13px; height: 13px; color: var(--cyan); flex: none; }
.tb-hot a {
  font-family: var(--font-num);
  font-size: .84rem;
  font-weight: 600;
  letter-spacing: .02em;
  color: #7ee7f7;
}
.tb-hot a:hover { color: #b6f2fb; }
.tb-links { display: flex; align-items: center; }
.tb-links a {
  position: relative;
  padding: 0 12px;
  color: var(--txt-3);
  transition: color .2s;
}
.tb-links a:last-child { padding-right: 0; }
.tb-links a:hover { color: var(--txt); }
.tb-links a + a::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 1px; height: 10px;
  background: rgba(255, 255, 255, .13);
}

.nav-inner {
  flex: 1 1 auto;
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 26px;
  display: flex;
  align-items: center;
  gap: 26px;
}

.brand { display: flex; align-items: center; gap: 12px; flex: none; }
/* 原站 LOGO（去白底 + 深色底适配版），4 倍图，按 CSS 高度等比缩放 */
.brand-img {
  height: 34px;
  width: auto;
  display: block;
  filter: drop-shadow(0 2px 10px rgba(0, 0, 0, .45));
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-menu > li > a {
  display: block;
  padding: 9px 12px;
  border-radius: 9px;
  font-size: .915rem;
  font-weight: 520;
  color: var(--txt-2);
  transition: color .2s, background .2s;
}
.nav-menu > li > a:hover { color: var(--txt); background: var(--surface); }
.nav-menu > li > a.active { color: var(--txt); }
.nav-menu > li > a.active::after {
  content: "";
  display: block;
  height: 2px;
  margin-top: 4px;
  border-radius: 2px;
  background: var(--grad-brand);
}
.nav-cta { flex: none; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border-radius: 11px;
  border: 1px solid var(--line);
  background: var(--surface);
  place-items: center;
}
.nav-toggle span {
  display: block;
  width: 18px; height: 1.5px;
  background: var(--txt);
  border-radius: 2px;
  transition: transform .3s var(--ease), opacity .2s;
}
.nav-toggle span + span { margin-top: 4.5px; }
.nav-open .nav-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 8. Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--top-h) + var(--nav-h) + 92px) 0 96px;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  gap: 58px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 15px 7px 9px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  backdrop-filter: blur(10px);
  font-size: .8rem;
  color: var(--txt-2);
  margin-bottom: 26px;
}
.hero-badge b { color: var(--txt); font-weight: 600; }
.pulse-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 0 rgba(74, 222, 128, .65);
  animation: pulse 2.4s infinite;
  flex: none;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(74, 222, 128, .6); }
  70%  { box-shadow: 0 0 0 9px rgba(74, 222, 128, 0); }
  100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

.hero h1 { margin-bottom: 24px; }
.hero .lead { max-width: 560px; }
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 54px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--line);
}
.hero-stat {
  padding: 20px 18px;
  background: rgba(8, 12, 22, .82);
  backdrop-filter: blur(8px);
}
.hero-stat .val {
  font-family: var(--font-num);
  font-size: 1.62rem;
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.1;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-stat .val small { font-size: .95rem; font-weight: 600; margin-left: 2px; }
.hero-stat .lbl { font-size: .78rem; color: var(--txt-3); margin-top: 5px; letter-spacing: .04em; }

/* Hero visual */
.hero-visual { position: relative; }
.hero-canvas-wrap {
  position: relative;
  /* 鼠标视差：轻微位移，形成纵深跟随感 */
  will-change: transform;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% 0%, rgba(34, 211, 238, .1), transparent 62%),
    rgba(8, 12, 22, .6);
  overflow: hidden;
  aspect-ratio: 1 / .92;
}
#cluster-canvas { width: 100%; height: 100%; }

.hero-overlay {
  position: absolute;
  left: 16px; right: 16px; bottom: 16px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.hud {
  padding: 12px 13px;
  border-radius: 13px;
  border: 1px solid var(--line);
  background: rgba(4, 6, 13, .72);
  backdrop-filter: blur(14px);
}
.hud .k { font-size: .68rem; color: var(--txt-3); letter-spacing: .07em; text-transform: uppercase; }
.hud .v {
  font-family: var(--font-num);
  font-size: 1.02rem; font-weight: 660;
  margin-top: 3px;
}
.hud .bar {
  height: 3px; border-radius: 3px;
  background: rgba(255, 255, 255, .1);
  margin-top: 8px; overflow: hidden;
}
.hud .bar i {
  display: block; height: 100%; border-radius: 3px;
  background: var(--grad-brand);
  width: 0;
  transition: width 1.6s var(--ease);
}

.float-chip {
  position: absolute;
  /* 鼠标视差位移：用独立的 translate 属性，与下方 floaty 的 transform 叠加而不冲突 */
  translate: var(--px, 0px) var(--py, 0px);
  will-change: translate;
  display: flex; align-items: center; gap: 9px;
  padding: 9px 15px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(8, 12, 22, .88);
  backdrop-filter: blur(14px);
  font-size: .78rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  white-space: nowrap;
}
.float-chip.c1 { top: 22px; left: -18px; animation: floaty 6s ease-in-out infinite; }
.float-chip.c2 { top: 44%; right: -22px; animation: floaty 7.5s ease-in-out infinite .8s; }
.float-chip .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  flex: none;
}
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-11px); }
}

/* ---------- 9. Marquee (partners) ---------- */
.marquee {
  position: relative;
  overflow: hidden;
  padding: 26px 0;
  border-block: 1px solid var(--line);
  background: rgba(8, 12, 22, .45);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee-track {
  display: flex;
  gap: 62px;
  width: max-content;
  animation: scroll-x 38s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes scroll-x {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
.marquee-item {
  font-size: 1.02rem;
  font-weight: 680;
  letter-spacing: .12em;
  color: var(--txt-3);
  text-transform: uppercase;
  transition: color .3s;
  white-space: nowrap;
}
.marquee-item:hover { color: var(--txt-2); }

/* ---------- 10. Cards ---------- */
.card {
  position: relative;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .012));
  backdrop-filter: blur(8px);
  padding: 30px;
  overflow: hidden;
  transition: transform .4s var(--ease), border-color .4s, box-shadow .4s;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .3), transparent);
  opacity: 0;
  transition: opacity .4s;
}
.card:hover {
  transform: translateY(-5px);
  border-color: rgba(34, 211, 238, .34);
  box-shadow: var(--shadow-md);
}
.card:hover::before { opacity: 1; }

.card-ico {
  width: 48px; height: 48px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  background: rgba(34, 211, 238, .09);
  color: var(--cyan);
  margin-bottom: 20px;
}
.card-ico svg { width: 23px; height: 23px; }
.card-ico.violet { background: rgba(168, 85, 247, .1); color: var(--violet); }
.card-ico.lime   { background: rgba(74, 222, 128, .1); color: var(--lime); }
.card-ico.amber  { background: rgba(251, 191, 36, .1); color: var(--amber); }
.card-ico.indigo { background: rgba(99, 102, 241, .12); color: #8b9bff; }

.card h3 { margin-bottom: 12px; }
.card p { color: var(--txt-2); font-size: .93rem; line-height: 1.78; }

/* ---------- 11. Pillar cards (dual core) ---------- */
.pillars {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}
.pillar {
  position: relative;
  border-radius: var(--r-xl);
  border: 1px solid var(--line);
  padding: 42px 40px 40px;
  overflow: hidden;
  background: linear-gradient(160deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .012));
  transition: transform .45s var(--ease), border-color .45s, box-shadow .45s;
}
.pillar:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.pillar.a:hover { border-color: rgba(34, 211, 238, .42); }
.pillar.b:hover { border-color: rgba(168, 85, 247, .42); }
.pillar-glow {
  position: absolute;
  width: 340px; height: 340px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .34;
  pointer-events: none;
}
.pillar.a .pillar-glow { top: -160px; right: -120px; background: radial-gradient(circle, rgba(34,211,238,.55), transparent 70%); }
.pillar.b .pillar-glow { top: -160px; right: -120px; background: radial-gradient(circle, rgba(168,85,247,.55), transparent 70%); }

.pillar .num {
  position: absolute;
  top: 26px; right: 34px;
  font-family: var(--font-num);
  font-size: 4.6rem;
  font-weight: 800;
  line-height: 1;
  color: rgba(255, 255, 255, .045);
  letter-spacing: -.04em;
}
.pillar .tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.pillar.a .tag { color: var(--cyan); background: rgba(34, 211, 238, .12); border: 1px solid rgba(34,211,238,.28); }
.pillar.b .tag { color: #c084fc; background: rgba(168, 85, 247, .12); border: 1px solid rgba(168,85,247,.28); }
.pillar h3 { font-size: clamp(1.35rem, 2.1vw, 1.7rem); margin-bottom: 14px; }
.pillar > p { color: var(--txt-2); font-size: .95rem; max-width: 460px; }

.pillar-list {
  margin: 26px 0 30px;
  display: grid;
  gap: 11px;
}
.pillar-list li {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  font-size: .91rem;
  color: var(--txt-2);
}
.pillar-list li::before {
  content: "";
  flex: none;
  width: 17px; height: 17px;
  margin-top: 4px;
  border-radius: 5px;
  background: rgba(255, 255, 255, .07);
  border: 1px solid var(--line-strong);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2322d3ee' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size: 11px;
  background-repeat: no-repeat;
  background-position: center;
}
.pillar.b .pillar-list li::before {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23c084fc' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
}

/* ---------- 12. Metric strip ---------- */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}
.metric {
  padding: 28px 26px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: rgba(8, 12, 22, .55);
  position: relative;
  overflow: hidden;
}
.metric::after {
  content: "";
  position: absolute;
  left: 26px; bottom: 0;
  width: 40px; height: 2px;
  background: var(--grad-brand);
  border-radius: 2px;
}
.metric .val {
  font-family: var(--font-num);
  font-size: clamp(1.8rem, 2.9vw, 2.5rem);
  font-weight: 740;
  letter-spacing: -.03em;
  line-height: 1.05;
}
.metric .val small { font-size: 1rem; font-weight: 620; margin-left: 3px; color: var(--txt-2); }
.metric .lbl { color: var(--txt-2); font-size: .87rem; margin-top: 10px; }
.metric .sub { color: var(--txt-3); font-size: .78rem; margin-top: 3px; }

/* ---------- 13. Tabs ---------- */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 34px;
}
.tab {
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: .885rem;
  font-weight: 560;
  color: var(--txt-2);
  transition: all .25s var(--ease);
}
.tab:hover { color: var(--txt); border-color: var(--line-strong); }
.tab.active {
  color: #04060d;
  background: var(--grad-brand);
  border-color: transparent;
  font-weight: 660;
  box-shadow: 0 8px 24px -10px rgba(34, 211, 238, .6);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fade-up .5s var(--ease); }
@keyframes fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- 14. Spec table ---------- */
.table-wrap {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: rgba(8, 12, 22, .5);
}
table.spec {
  width: 100%;
  border-collapse: collapse;
  font-size: .89rem;
}
table.spec thead th {
  text-align: left;
  padding: 15px 20px;
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--txt-3);
  background: rgba(255, 255, 255, .035);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
table.spec td {
  padding: 15px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, .05);
  color: var(--txt-2);
  vertical-align: top;
}
table.spec tbody tr:last-child td { border-bottom: 0; }
table.spec tbody tr { transition: background .2s; }
table.spec tbody tr:hover { background: rgba(34, 211, 238, .045); }
table.spec td:first-child {
  color: var(--txt);
  font-weight: 620;
  white-space: nowrap;
}
table.spec td .mono { color: var(--cyan); font-size: .85rem; }

/* ---------- 15. Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}
/* 6 项时固定三列两行，避免出现 5+1 的残缺行 */
.steps.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.step {
  background: rgba(8, 12, 22, .9);
  padding: 30px 26px;
  position: relative;
  transition: background .3s;
}
.step:hover { background: rgba(15, 22, 38, .95); }
.step .n {
  font-family: var(--font-num);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--cyan);
  display: block;
  margin-bottom: 14px;
}
.step h3 { margin-bottom: 9px; font-size: 1.02rem; }
.step p { font-size: .86rem; color: var(--txt-3); line-height: 1.7; }

/* ---------- 16. Accordion ---------- */
.acc { border-top: 1px solid var(--line); }
.acc-item { border-bottom: 1px solid var(--line); }
.acc-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 4px;
  text-align: left;
  font-size: 1.03rem;
  font-weight: 600;
  color: var(--txt);
  transition: color .2s;
}
.acc-q:hover { color: var(--cyan); }
.acc-q .ico {
  flex: none;
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  display: grid;
  place-items: center;
  position: relative;
  transition: transform .35s var(--ease), border-color .3s, background .3s;
}
.acc-q .ico::before,
.acc-q .ico::after {
  content: "";
  position: absolute;
  background: currentColor;
  border-radius: 2px;
}
.acc-q .ico::before { width: 11px; height: 1.6px; }
.acc-q .ico::after  { width: 1.6px; height: 11px; transition: opacity .3s, transform .35s; }
.acc-item.open .acc-q .ico {
  transform: rotate(90deg);
  border-color: rgba(34, 211, 238, .5);
  background: rgba(34, 211, 238, .1);
  color: var(--cyan);
}
.acc-item.open .acc-q .ico::after { opacity: 0; }
.acc-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .45s var(--ease);
}
.acc-a > div {
  padding: 0 60px 26px 4px;
  color: var(--txt-2);
  font-size: .93rem;
  line-height: 1.85;
}

/* ---------- 17. Case cards ---------- */
.cases {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
@media (min-width: 961px) {
  .cases.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.case {
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .012));
  padding: 28px;
  transition: transform .4s var(--ease), border-color .4s;
  display: flex;
  flex-direction: column;
}
.case:hover { transform: translateY(-5px); border-color: rgba(99, 102, 241, .4); }
.case .sector {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #8b9bff;
  margin-bottom: 14px;
}
.case h3 { font-size: 1.1rem; margin-bottom: 12px; }
.case p { font-size: .89rem; color: var(--txt-2); flex: 1; }
.case .kpis {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.case .kpis span {
  font-family: var(--font-num);
  font-size: .78rem;
  padding: 5px 11px;
  border-radius: 7px;
  background: rgba(34, 211, 238, .08);
  border: 1px solid rgba(34, 211, 238, .2);
  color: #67e8f9;
}

/* ---------- 18. Timeline ---------- */
.timeline { position: relative; padding-left: 34px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 6px; bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--indigo) 55%, transparent);
}
.tl-item { position: relative; padding-bottom: 38px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -34px; top: 6px;
  width: 15px; height: 15px;
  border-radius: 50%;
  background: var(--bg-elev);
  border: 2px solid var(--indigo);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, .12);
}
.tl-item.now::before {
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, .18), 0 0 16px rgba(34, 211, 238, .7);
  background: var(--cyan);
}
.tl-year {
  font-family: var(--font-num);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--cyan);
  margin-bottom: 7px;
}
.tl-item h3 { font-size: 1.02rem; margin-bottom: 7px; }
.tl-item p { font-size: .89rem; color: var(--txt-2); }

/* ---------- 19. Logo wall ---------- */
.logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  max-width: 980px;   /* 每行 6 个，11 个 logo 排成 6 + 5 */
  margin-inline: auto;
}
.logo-cell {
  flex: 0 0 auto;
  width: 150px;
  height: 64px;
  border-radius: 12px;
  background: #eef1f7;
  display: grid;
  place-items: center;
  overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.logo-cell img { width: 150px; height: 64px; display: block; }
.logo-cell:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px -14px rgba(0, 0, 0, .85);
}

/* ---------- 20. CTA band ---------- */
.cta-band {
  position: relative;
  border-radius: var(--r-xl);
  border: 1px solid var(--line-strong);
  padding: 66px 56px;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 130% at 12% 0%, rgba(34, 211, 238, .17), transparent 60%),
    radial-gradient(ellipse 80% 130% at 92% 100%, rgba(168, 85, 247, .17), transparent 60%),
    rgba(8, 12, 22, .72);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 44px;
  flex-wrap: wrap;
}
.cta-band h2 { font-size: clamp(1.6rem, 2.9vw, 2.3rem); margin-bottom: 12px; }
.cta-band p { color: var(--txt-2); max-width: 520px; font-size: .96rem; }
.cta-band .actions { display: flex; gap: 13px; flex-wrap: wrap; }

/* ---------- 21. Forms ---------- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label {
  font-size: .8rem;
  font-weight: 620;
  color: var(--txt-2);
  letter-spacing: .03em;
}
.field label .req { color: var(--cyan); }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 13px 16px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .035);
  color: var(--txt);
  font-family: inherit;
  font-size: .93rem;
  transition: border-color .25s, background .25s, box-shadow .25s;
}
.field textarea { resize: vertical; min-height: 118px; line-height: 1.7; }
.field input::placeholder,
.field textarea::placeholder { color: var(--txt-3); }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: rgba(34, 211, 238, .55);
  background: rgba(34, 211, 238, .05);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, .1);
}
.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2398a5bd' stroke-width='2.2' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 16px;
  padding-right: 42px;
}
.field select option { background: var(--bg-elev-2); color: var(--txt); }
.form-note { font-size: .8rem; color: var(--txt-3); }
.form-ok {
  display: none;
  align-items: center;
  gap: 11px;
  padding: 15px 18px;
  border-radius: var(--r-sm);
  border: 1px solid rgba(74, 222, 128, .34);
  background: rgba(74, 222, 128, .09);
  color: #86efac;
  font-size: .9rem;
}
.form-ok.show { display: flex; animation: fade-up .4s var(--ease); }

/* ---------- 22. Contact cards ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}
.contact-card {
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: rgba(8, 12, 22, .55);
  padding: 26px;
}
.contact-card .k {
  font-size: .74rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--txt-3);
  margin-bottom: 12px;
}
.contact-card .v { font-size: 1.06rem; font-weight: 640; }
.contact-card .v a:hover { color: var(--cyan); }
.contact-card .s { font-size: .84rem; color: var(--txt-3); margin-top: 6px; }

/* ---------- 23. Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  background: rgba(6, 9, 16, .8);
  padding: 66px 0 30px;
  margin-top: 0;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr repeat(4, 1fr);
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--line);
}
.footer-brand .brand-img { height: 40px; }
.footer-brand p {
  color: var(--txt-3);
  font-size: .87rem;
  margin-top: 18px;
  max-width: 300px;
  line-height: 1.8;
}
.footer h3 {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--txt-3);
  margin: 0 0 18px;
}
.footer-links { display: grid; gap: 11px; }
.footer-links a {
  font-size: .89rem;
  color: var(--txt-2);
  transition: color .2s, transform .2s;
  display: inline-block;
}
.footer-links a:hover { color: var(--cyan); transform: translateX(3px); }

/* 页脚热线块 */
.footer-hot {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, .07);
}
.footer-hot .k {
  display: block;
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--txt-3);
  text-transform: uppercase;
}
.footer-hot a {
  display: inline-block;
  margin-top: 6px;
  font-family: var(--font-num);
  font-size: 1.28rem;
  font-weight: 700;
  letter-spacing: .01em;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.footer-hot .sub { display: block; margin-top: 4px; font-size: .78rem; color: var(--txt-3); }

/* 友情链接条 */
.footer-friend {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 0;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  font-size: .82rem;
}
.footer-friend .ff-label {
  flex: none;
  margin-right: 14px;
  color: var(--txt-3);
  letter-spacing: .1em;
}
.footer-friend a {
  position: relative;
  padding: 0 14px;
  color: var(--txt-2);
  transition: color .2s;
}
.footer-friend a:first-of-type { padding-left: 0; }
.footer-friend a + a::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 1px; height: 11px;
  background: rgba(255, 255, 255, .13);
}
.footer-friend a:hover { color: var(--cyan); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding-top: 26px;
  font-size: .8rem;
  color: var(--txt-3);
}

/* ---------- 24. Page hero (sub pages) ---------- */
.page-hero {
  padding: calc(var(--top-h) + var(--nav-h) + 78px) 0 72px;
  position: relative;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.page-hero .crumbs {
  font-size: .8rem;
  color: var(--txt-3);
  margin-bottom: 22px;
  display: flex;
  gap: 9px;
  align-items: center;
}
.page-hero .crumbs a:hover { color: var(--cyan); }
.page-hero h1 { margin: 16px 0 22px; max-width: 860px; }
.page-hero .lead { max-width: 660px; }
.page-hero .actions { display: flex; gap: 13px; flex-wrap: wrap; margin-top: 34px; }

/* ---------- 25. Reveal（渐进增强） ----------
   默认可见：JS 被禁用 / 加载失败 / 被拦截时，正文依然完整可读、可被搜索引擎索引。
   html.js 由 <head> 内联脚本同步写入，动画只在 JS 确实可用时启用，
   从根上避免「脚本没跑 → 整页空白」的致命问题。 */
.reveal { opacity: 1; transform: none; }
html.js .reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
html.js .reveal.in { opacity: 1; transform: none; }
html.js .reveal.d1 { transition-delay: .07s; }
html.js .reveal.d2 { transition-delay: .14s; }
html.js .reveal.d3 { transition-delay: .21s; }
html.js .reveal.d4 { transition-delay: .28s; }
html.js .reveal.d5 { transition-delay: .35s; }

/* 首屏内容不做透明度渐入。
   英雄区在视口内，若以 opacity:0 起始，浏览器要等脚本跑完才开始绘制，
   会把 FCP / LCP 推迟 2–3 秒（Core Web Vitals 直接不达标）。
   这里只做位移入场，保持不透明度为 1 —— 动效仍在，首屏却能立即绘制。 */
html.js .hero .reveal,
html.js .page-hero .reveal {
  opacity: 1;
  transform: translateY(18px);
  animation: hero-in .7s var(--ease) both;
}
html.js .hero .reveal.d1, html.js .page-hero .reveal.d1 { animation-delay: .06s; }
html.js .hero .reveal.d2, html.js .page-hero .reveal.d2 { animation-delay: .12s; }
html.js .hero .reveal.d3, html.js .page-hero .reveal.d3 { animation-delay: .18s; }
html.js .hero .reveal.d4, html.js .page-hero .reveal.d4 { animation-delay: .24s; }
html.js .hero .reveal.d5, html.js .page-hero .reveal.d5 { animation-delay: .30s; }
@keyframes hero-in {
  from { transform: translateY(18px); }
  to   { transform: translateY(0); }
}

/* 兜底：入场观察器异常 / 未及时触发时，强制显示内容 */
html.js.reveal-fallback .reveal:not(.in) {
  opacity: 1 !important; transform: none !important; transition: none !important;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; animation-iteration-count: 1 !important;
      transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .reveal, html.js .reveal { opacity: 1; transform: none; animation: none; }
}

/* ---------- 26. Back to top ---------- */
.to-top {
  position: fixed;
  right: 26px; bottom: 26px;
  z-index: 90;
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: rgba(8, 12, 22, .9);
  backdrop-filter: blur(12px);
  display: grid;
  place-items: center;
  color: var(--txt-2);
  opacity: 0;
  transform: translateY(14px);
  pointer-events: none;
  transition: all .35s var(--ease);
}
.to-top.show { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { color: var(--cyan); border-color: rgba(34, 211, 238, .5); }
.to-top svg { width: 18px; height: 18px; }

/* ---------- 27. Utility grids ---------- */
.g2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.g3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.g4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.split {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 60px;
  align-items: center;
}
.mt-s { margin-top: 20px; }
.mt-m { margin-top: 36px; }
.mt-l { margin-top: 56px; }
.center { text-align: center; }

/* ---------- 28. 运维闭环 + 并行责任域 ---------- */

/* 闭环总览图 */
.loop-figure {
  position: relative;
  padding: 30px 26px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    radial-gradient(880px 300px at 50% -12%, rgba(34, 211, 238, .075), transparent 72%),
    rgba(8, 12, 22, .5);
  overflow-x: auto;
  overflow-y: hidden;
}
.loop-figure svg { display: block; width: 100%; height: auto; }
.loop-hint {
  display: none;
  margin-top: 12px;
  font-size: .78rem;
  color: var(--txt-3);
  text-align: center;
}

/* 通道条 */
.rail {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  border: 1px solid var(--line);
  background: rgba(8, 12, 22, .78);
  font-size: .86rem;
  line-height: 1.4;
}
.rail .arw { font-size: .95rem; line-height: 1; }
.rail .rule { flex: 1 1 auto; height: 1px; background: currentColor; opacity: .22; }
.rail .tag { flex: 0 0 auto; color: var(--txt-3); font-size: .76rem; letter-spacing: .02em; }
.rail.up {
  border-radius: var(--r-md) var(--r-md) 0 0;
  border-bottom: 0;
  color: #7ee7f7;
  box-shadow: inset 0 1px 0 rgba(34, 211, 238, .16);
}
.rail.down {
  border-radius: 0 0 var(--r-md) var(--r-md);
  border-top: 0;
  color: #c4b5fd;
  box-shadow: inset 0 -1px 0 rgba(168, 85, 247, .16);
}

/* 并行责任域 */
.domains {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
}
.domain {
  background: rgba(7, 10, 19, .94);
  padding: 24px 17px 26px;
  transition: background .35s var(--ease);
  word-break: keep-all;        /* 中文只在「·」处断行，不在词内断开 */
}
.domain:hover { background: rgba(11, 17, 30, .96); }

/* 不可断行片段：每个 .nb 是一组语义完整的分项，自身不折行，且各自独占一行。
   这样六列并排时折行点固定、两行内容均衡，不会出现「· 分层」这种孤字；
   列变宽时也不会因为两段并到一行而丢掉中间的分隔符。 */
.domain .nb { white-space: nowrap; display: block; }
.domain .d-layer {
  display: inline-block;
  font-family: var(--font-num);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .06em;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(34, 211, 238, .1);
  color: #7ee7f7;
}
.domain:nth-child(2) .d-layer { background: rgba(99, 102, 241, .14); color: #a5b4fc; }
.domain:nth-child(3) .d-layer { background: rgba(168, 85, 247, .13); color: #d8b4fe; }
.domain:nth-child(4) .d-layer { background: rgba(74, 222, 128, .11); color: #86efac; }
.domain:nth-child(5) .d-layer { background: rgba(251, 191, 36, .11); color: #fcd34d; }
.domain:nth-child(6) .d-layer { background: rgba(148, 163, 184, .14); color: #cbd5e1; }

.domain h3 { font-size: .98rem; margin: 12px 0 10px; letter-spacing: .01em; }
.domain .d-obj {
  font-size: .76rem;
  color: var(--txt-3);
  line-height: 1.68;
  min-height: 3.36em;          /* 固定 2 行，保证分隔线跨列对齐 */
  margin: 0 0 15px;
  padding-bottom: 14px;
  border-bottom: 1px dashed rgba(255, 255, 255, .08);
}
.domain .d-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.domain .d-list li {
  display: flex;
  gap: 8px;
  font-size: .78rem;
  color: var(--txt-2);
  line-height: 1.62;
  min-height: 3.24em;          /* 固定 2 行，保证「盯」「做」两行跨列对齐 */
}
.domain .d-list li i {
  flex: 0 0 auto;
  width: 17px; height: 17px;
  margin-top: 1px;
  border-radius: 5px;
  display: grid; place-items: center;
  font-style: normal;
  font-size: .66rem;
  font-weight: 600;
  background: rgba(255, 255, 255, .07);
  color: var(--txt-3);
}
.domain .d-list li.hot i { background: rgba(34, 211, 238, .13); color: #7ee7f7; }

/* 「为什么不是流水线」说明 */
.why-loop {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}
.why-loop > div {
  background: rgba(7, 10, 19, .94);
  padding: 24px 22px;
}
.why-loop .w-n {
  font-family: var(--font-num);
  font-size: .72rem;
  font-weight: 600;
  color: var(--txt-3);
  letter-spacing: .08em;
}
.why-loop h3 { font-size: .95rem; margin: 9px 0 9px; }
.why-loop p { font-size: .82rem; color: var(--txt-2); line-height: 1.72; margin: 0; }
.why-loop p b { color: var(--txt); font-weight: 600; }

/* ---------- 29. Responsive ---------- */

/* 八个导航项 + LOGO + 按钮只在 ≥1201px 放得下；再窄就收起右侧按钮 */
@media (max-width: 1200px) {
  .domains { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .domain .d-obj { min-height: 1.68em; }
  .domain .d-list li { min-height: 1.62em; }
  .nav-cta { display: none; }
}

/* 导航折叠为抽屉菜单 */
@media (max-width: 1080px) {
  :root { --top-h: 0px; --nav-h: 66px; }
  .topbar { display: none; }
  .nav-menu {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 14px 20px 26px;
    background: rgba(4, 6, 13, .97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-14px);
    opacity: 0;
    visibility: hidden;
    transition: all .3s var(--ease);
    max-height: calc(100vh - var(--nav-h));
    overflow-y: auto;
  }
  .nav-open .nav-menu { transform: none; opacity: 1; visibility: visible; }
  .nav-menu > li > a {
    padding: 15px 12px;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, .05);
    border-radius: 0;
  }
  .nav-menu > li > a.active::after { display: none; }
  .nav-toggle { display: grid; margin-left: auto; }
  .nav-cta { display: none; }

  .hero-grid { grid-template-columns: 1fr; gap: 52px; }
  .hero-visual { max-width: 620px; }
  .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 36px; }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .domains { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .domain .d-obj, .domain .d-list li { min-height: 0; }
  .why-loop { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .section { padding: 78px 0; }

  .pillars { grid-template-columns: 1fr; }
  .g3 { grid-template-columns: 1fr; }
  .g2 { grid-template-columns: 1fr; }
  .steps.cols-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .logo-cell, .logo-cell img { width: 136px; height: 58px; }
  .hero-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-band { padding: 44px 30px; }
  .pillar { padding: 34px 26px; }
  .pillar .num { font-size: 3.2rem; top: 18px; right: 22px; }
  .float-chip.c1 { left: -6px; }
  .float-chip.c2 { right: -6px; }
  .acc-a > div { padding-right: 20px; }
  .domains { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rail { flex-wrap: wrap; gap: 8px 12px; padding: 11px 16px; font-size: .82rem; }
  .rail .tag { margin-left: 0; }
  .loop-figure svg { min-width: 760px; }
  .loop-hint { display: block; }
}

@media (max-width: 620px) {
  .container { padding: 0 18px; }
  .nav-inner { padding: 0 18px; }
  .section { padding: 62px 0; }
  .g4, .metrics, .form-grid { grid-template-columns: 1fr; }
  .steps, .steps.cols-3 { grid-template-columns: 1fr; }
  .logo-cell, .logo-cell img { width: 118px; height: 50px; }
  .logos { gap: 10px; }
  .footer-top { grid-template-columns: 1fr; }
  .hero { padding-top: calc(var(--nav-h) + 62px); }
  .page-hero { padding-top: calc(var(--nav-h) + 54px); }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-stat { padding: 16px 14px; }
  .hero-stat .val { font-size: 1.34rem; }
  .cta-band { padding: 34px 22px; }
  .brand-en { display: none; }
  .table-wrap { overflow-x: auto; }
  table.spec { min-width: 620px; }
  .timeline { padding-left: 26px; }
  .tl-item::before { left: -26px; width: 13px; height: 13px; }
  .card, .case { padding: 24px; }
  .to-top { right: 16px; bottom: 16px; }
  .domain { padding: 20px 15px 22px; }
  .loop-figure { padding: 18px 14px; }
  .why-loop > div { padding: 20px 18px; }
}

@media (max-width: 520px) {
  .domains { grid-template-columns: 1fr; }
}

/* ---------- 30. 产品中心 / 资源中心 / 培训中心 组件 ---------- */
.actions { display: flex; gap: 13px; flex-wrap: wrap; align-items: center; }

.list-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 22px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.model-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(198px, 1fr));
  gap: 14px;
}
.model-card {
  padding: 20px 22px 18px;
  border-radius: var(--r-md);
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-height: 138px;
}
.model-card .mc-code {
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--txt);
  word-break: break-all;
}
.model-card .mc-tag {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--cyan);
}
.model-card .mc-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .81rem;
  color: var(--txt-3);
  transition: color .22s, gap .22s;
}
.model-card .mc-link svg { width: 13px; height: 13px; flex: none; }
.model-card .mc-link:hover { color: var(--cyan); gap: 9px; }

.check-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.check-list li {
  position: relative;
  padding-left: 26px;
  font-size: .92rem;
  color: var(--txt-2);
  line-height: 1.78;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 1px; top: .58em;
  width: 11px; height: 6px;
  border-left: 1.8px solid var(--cyan);
  border-bottom: 1.8px solid var(--cyan);
  transform: rotate(-45deg);
  border-radius: 1px;
}

.stat-panel {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: rgba(8, 12, 22, .55);
  overflow: hidden;
}
.stat-panel > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 22px;
  padding: 18px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, .055);
}
.stat-panel > div:last-child { border-bottom: 0; }
.stat-panel .sp-k { flex: none; font-size: .82rem; color: var(--txt-3); letter-spacing: .04em; }
.stat-panel .sp-v { font-size: .95rem; font-weight: 600; text-align: right; color: var(--txt); }

.dl-link { color: #7ee7f7; }
.dl-link:hover { color: #b6f2fb; text-decoration: underline; }

/* 资源下载条目 */
.dl-list { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.dl-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px 26px;
  background: rgba(8, 12, 22, .9);
  transition: background .3s;
}
.dl-item:hover { background: rgba(15, 22, 38, .95); }
.dl-item .di-ico {
  flex: none;
  width: 42px; height: 42px;
  border-radius: 11px;
  display: grid; place-items: center;
  border: 1px solid var(--line-strong);
  background: rgba(34, 211, 238, .09);
  color: var(--cyan);
}
.dl-item .di-ico svg { width: 19px; height: 19px; }
.dl-item .di-body { flex: 1 1 auto; min-width: 0; }
.dl-item .di-body h3 { font-size: .98rem; margin-bottom: 5px; }
.dl-item .di-body p { font-size: .85rem; color: var(--txt-3); line-height: 1.7; }
.dl-item .di-act { flex: none; }

/* 培训课程卡 */
.course {
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .012));
  padding: 30px;
  display: flex;
  flex-direction: column;
  transition: transform .4s var(--ease), border-color .4s;
}
.course:hover { transform: translateY(-5px); border-color: rgba(34, 211, 238, .34); }
.course .c-tag {
  font-size: .72rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: #8b9bff; margin-bottom: 14px;
}
.course h3 { font-size: 1.14rem; margin-bottom: 12px; }
.course p { font-size: .9rem; color: var(--txt-2); line-height: 1.78; }
.course .c-list { list-style: none; margin: 20px 0 0; padding: 18px 0 0; border-top: 1px solid var(--line); display: grid; gap: 9px; }
.course .c-list li { position: relative; padding-left: 18px; font-size: .85rem; color: var(--txt-3); line-height: 1.7; }
.course .c-list li::before {
  content: ""; position: absolute; left: 2px; top: .62em;
  width: 5px; height: 5px; border-radius: 50%; background: var(--cyan); opacity: .7;
}
.course .c-foot { margin-top: auto; padding-top: 22px; }

@media (max-width: 620px) {
  .dl-item { flex-wrap: wrap; gap: 14px; padding: 20px 18px; }
  .dl-item .di-act { width: 100%; }
  .model-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
}

/* 培训课程详情面板 */
.course-detail {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  gap: 46px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: rgba(8, 12, 22, .5);
  padding: 38px 40px;
}
.course-detail .cd-head .c-tag {
  font-size: .72rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: #8b9bff; display: block; margin-bottom: 12px;
}
.course-detail .cd-head h3 { margin-bottom: 16px; }
.course-detail .cd-head .lead { font-size: .95rem; }
.course-detail .cd-body h3 { color: var(--txt-3); letter-spacing: .1em; margin-bottom: 16px; font-size: .78rem; text-transform: uppercase; }
.course-detail .c-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 11px; }
.course-detail .c-list li { position: relative; padding-left: 20px; font-size: .9rem; color: var(--txt-2); line-height: 1.72; }
.course-detail .c-list li::before {
  content: ""; position: absolute; left: 2px; top: .62em;
  width: 5px; height: 5px; border-radius: 50%; background: var(--cyan); opacity: .75;
}

@media (max-width: 900px) {
  .course-detail { grid-template-columns: 1fr; gap: 30px; padding: 28px 24px; }
}

/* 首页公司公告条 */
.notice-wrap { padding: 0 0 8px; }
.notice-band {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background:
    linear-gradient(90deg, rgba(34, 211, 238, .07), rgba(99, 102, 241, .05) 55%, transparent),
    rgba(8, 12, 22, .62);
  font-size: .89rem;
}
.notice-band .nb-tag {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: #7ee7f7;
}
.notice-band .nb-tag svg { width: 15px; height: 15px; }
.notice-band .nb-sep { flex: none; width: 1px; height: 15px; background: rgba(255, 255, 255, .14); }
.notice-band .nb-text { flex: 1 1 auto; min-width: 0; color: var(--txt); transition: color .2s; }
.notice-band .nb-text:hover { color: var(--cyan); }
.notice-band .nb-aux {
  flex: none;
  font-size: .78rem;
  color: var(--txt-3);
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .03);
}
.notice-band .nb-more {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .83rem;
  color: var(--txt-3);
  transition: color .2s, gap .2s;
}
.notice-band .nb-more svg { width: 13px; height: 13px; }
.notice-band .nb-more:hover { color: var(--cyan); gap: 9px; }

@media (max-width: 900px) {
  .notice-band { flex-wrap: wrap; gap: 10px 14px; padding: 14px 18px; }
  .notice-band .nb-sep { display: none; }
  .notice-band .nb-text { flex: 1 1 100%; order: 3; }
  .notice-band .nb-more { margin-left: auto; }
}

/* ---------- 31. 可访问性增强（a11y） ---------- */

/* 键盘焦点可见：仅对键盘用户显示，鼠标点击不出现描边 */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}
/* 表单控件已有自定义聚焦样式，避免双重描边 */
.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible { outline: none; }

/* 跳转到主内容：Tab 第一下即可跳过导航 */
.skip-link {
  position: fixed;
  left: 16px;
  top: 0;
  z-index: 200;
  padding: 11px 20px;
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  background: var(--grad-brand);
  color: #04060d;
  font-size: .9rem;
  font-weight: 660;
  /* 移出视口；聚焦时立即出现——跳转链接不该有动画延迟，
     且避免过渡时序导致焦点元素仍在屏外。 */
  transform: translateY(-120%);
}
.skip-link:focus,
.skip-link:focus-visible { transform: translateY(0); outline-offset: -2px; }

/* 读屏专用文本 */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- 32. 触屏点按区域 ----------
   移动端正文链接（公司公告 / 型号卡 / 页脚 / 下载项）行高偏小，
   用伪元素扩展命中区域，不改变视觉排版。 */
@media (pointer: coarse) {
  .nb-text, .nb-more, .link-arrow, .mc-link, .dl-link,
  .footer-links a, .footer-friend a, .crumbs a, .contact-card .v a {
    position: relative;
  }
  .nb-text::after, .nb-more::after, .link-arrow::after,
  .mc-link::after, .dl-link::after, .footer-links a::after,
  .footer-friend a::after, .crumbs a::after, .contact-card .v a::after {
    content: "";
    position: absolute;
    left: 0; right: 0;
    top: 50%;
    transform: translateY(-50%);
    min-height: 44px;
    height: 100%;
  }
  /* .link-arrow 的 ::after 已用于箭头，改用 ::before 承载命中区 */
  .link-arrow::after { content: "→"; min-height: 0; height: auto; position: static; transform: none; }
  .link-arrow::before {
    content: "";
    position: absolute;
    left: 0; right: 0; top: 50%;
    transform: translateY(-50%);
    min-height: 44px;
  }
  .footer-links { gap: 4px; }
  .footer-links a { padding: 5px 0; }

  /* 顶栏 LOGO 与汉堡按钮：命中区补足到 44px */
  .brand { padding: 5px 0; }
  .nav-toggle { width: 44px; height: 44px; }

  /* 面包屑与公告条按钮改用真实内边距，确保命中区稳定达到 44px */
  .crumbs { gap: 0; }
  .crumbs a { padding: 12px 8px; margin: -12px 0; }
  .crumbs a:first-child { margin-left: -8px; }
  .crumbs span { padding: 0 1px; }
  .notice-band .nb-more {
    min-height: 44px;
    align-items: center;
    padding: 0 2px;
  }
}

/* ---------- 33. 无 JS 降级 ----------
   html 初始为 class="no-js"，脚本可用时替换为 "js"。
   没有脚本时：页签导航无意义，改为把全部面板依次展开；
   手风琴答案同样全部展开，确保 FAQ 内容可读、可被搜索引擎抓取。 */
html.no-js .tabs { display: none; }
html.no-js .tab-panel { display: block; margin-bottom: 34px; }
/* 「全部课程」概览面板只是三张指向详情页的卡片，无脚本时隐藏以免重复 */
html.no-js .tab-panel[data-panel="all"] { display: none; }
html.no-js .acc-a { max-height: none !important; overflow: visible !important; }
html.no-js .acc-q { cursor: default; }
html.no-js .acc-q .ico { display: none; }

/* ---------- 34. 长文档 / 打印 ---------- */
@media print {
  .bg-layer, .nav, .to-top, .marquee, .skip-link { display: none !important; }
  body { background: #fff; color: #000; }
  html.js .reveal { opacity: 1 !important; transform: none !important; }
}