/* =============================================================
   多页体系 + 科技化增强 (Pages & Tech) —— 在 components.css 之上
   新增：英雄区光斑 / 电路分隔 / 流程步骤 / 架构分层 / 时间线 / CTA 横幅
   ============================================================= */

/* ============ 英雄区渐变光斑（替代原粒子连线）============ */
.hero .container, .hero-grid { position: relative; z-index: 2; }
.hero::before,
.page-hero::before {
  content: ""; position: absolute; inset: -14% -10%; z-index: 0; pointer-events: none;
  background:
    radial-gradient(38rem 30rem at 22% 26%, var(--blob-1), transparent 68%),
    radial-gradient(34rem 28rem at 78% 18%, var(--blob-2), transparent 70%),
    radial-gradient(30rem 26rem at 58% 88%, var(--blob-3), transparent 72%);
  animation: blobDrift 26s var(--ease-out) infinite alternate;
}
@keyframes blobDrift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  50%  { transform: translate3d(-2.5%, 2%, 0) scale(1.06); }
  to   { transform: translate3d(2.5%, -2.5%, 0) scale(1.03); }
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    repeating-linear-gradient(0deg, var(--scan-line) 0 1px, transparent 1px 60px),
    repeating-linear-gradient(90deg, var(--scan-line) 0 1px, transparent 1px 60px);
  mask-image: radial-gradient(circle at 60% 40%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 60% 40%, #000 0%, transparent 72%);
}

/* ============ 电路分隔线 ============ */
.circuit {
  position: relative; height: 2px; margin: 0;
  background: linear-gradient(90deg, transparent, var(--color-accent-line), transparent);
}

/* ============ 章节插画 / 图片 ============ */
.section-figure {
  margin: var(--space-5) auto 0;
  max-width: 960px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-2);
  box-shadow: var(--shadow-1);
}
.section-figure img { width: 100%; height: auto; display: block; }
.circuit::before {
  content: ""; position: absolute; left: 50%; top: 50%; width: 14px; height: 14px;
  transform: translate(-50%,-50%) rotate(45deg);
  background: var(--color-bg); border: 2px solid var(--color-accent);
  box-shadow: 0 0 16px var(--glow-1); border-radius: 3px;
}
.circuit::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 44px; height: 44px;
  transform: translate(-50%,-50%); border: 1px solid var(--color-accent-line);
  border-radius: 50%; animation: ringPulse 3.4s ease-out infinite;
}
@keyframes ringPulse { 0%{opacity:.6;transform:translate(-50%,-50%) scale(.5)} 100%{opacity:0;transform:translate(-50%,-50%) scale(1.4)} }

/* ============ 通用 CTA 横幅 ============ */
.cta-band {
  position: relative; overflow: hidden;
  margin-block: var(--space-7);
  border-radius: var(--radius-xl);
  padding: clamp(40px,6vw,72px);
  background-color: var(--glass-bg);
  background-image:
    radial-gradient(40rem 20rem at 12% 0%, var(--glow-accent), transparent 60%),
    radial-gradient(40rem 22rem at 92% 100%, var(--glow-1), transparent 60%);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur)) saturate(150%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(150%);
  box-shadow: var(--shadow-2), inset 0 1px 0 var(--glass-inner);
  text-align: center;
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.cta-band::before {
  content: ""; position: absolute; left: -10%; top: -60%; width: 55%; height: 220%;
  background: linear-gradient(100deg, transparent, var(--glow-2) 45%, transparent 85%);
  transform: translateX(-30%); pointer-events: none;
  animation: auraSweep 12s var(--ease-out) infinite alternate;
}
@keyframes auraSweep { to { transform: translateX(240%); } }
.cta-band:hover { transform: translateY(-4px); border-color: var(--glass-border-hover); }
.cta-band > * { position: relative; }
.cta-band h2 { font-size: clamp(26px,3.4vw,40px); margin-bottom: var(--space-3); }
.cta-band p { max-width: 620px; margin: 0 auto var(--space-4); font-size: 17px; }
.cta-band .hero-actions { justify-content: center; margin-bottom: 0; }

/* ============ 流程步骤（科技节点）============ */
.process { display: grid; grid-template-columns: repeat(6,1fr); gap: var(--space-3); position: relative; }
.process::before {
  content: ""; position: absolute; left: 6%; right: 6%; top: 34px; height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent-line) 12%, var(--color-accent-line) 88%, transparent);
  z-index: 0;
}
.step { position: relative; z-index: 1; text-align: center; }
.step .node {
  width: 68px; height: 68px; margin: 0 auto 16px; border-radius: 22px;
  display: grid; place-items: center; position: relative;
  background-color: var(--glass-bg);
  background-image: linear-gradient(145deg, var(--glow-1), transparent 62%);
  border: 1px solid var(--glass-border); color: var(--color-accent);
  backdrop-filter: blur(var(--glass-blur)) saturate(150%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(150%);
  font-family: var(--font-display); font-weight: 700; font-size: 22px;
  box-shadow: var(--glow), inset 0 1px 0 var(--glass-inner);
  transition: transform var(--dur-base) var(--ease-spring), border-color var(--dur-base), box-shadow var(--dur-base), background-color var(--dur-base);
}
.step .node svg { width: 30px; height: 30px; }
.step:hover .node { transform: translateY(-7px) rotate(-5deg); border-color: var(--glass-border-hover); background-color: var(--glass-bg-hover); }
.step .k { font-family: var(--font-display); font-size: 12px; letter-spacing: .2em; color: var(--color-accent); }
.step h3 { font-size: 17px; margin: 8px 0 6px; }
.step p { font-size: 13.5px; line-height: 1.55; }

/* ============ AI 技术架构分层图 ============ */
.arch { display: flex; flex-direction: column; gap: 12px; max-width: 920px; margin-inline: auto; }
.arch-layer {
  position: relative; padding: 20px 24px; border-radius: var(--radius-lg);
  background-color: var(--glass-bg);
  background-image: linear-gradient(100deg, var(--glow-3), transparent 52%);
  border: 1px solid var(--glass-border); display: flex; align-items: center; gap: 18px;
  backdrop-filter: blur(var(--glass-blur)) saturate(150%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(150%);
  box-shadow: var(--shadow-1), inset 0 1px 0 var(--glass-inner);
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out), background-color var(--dur-base), box-shadow var(--dur-base);
}
.arch-layer:hover { border-color: var(--glass-border-hover); background-color: var(--glass-bg-hover); transform: translateX(6px); box-shadow: var(--shadow-2), inset 0 1px 0 var(--glass-inner); }
.arch-layer .lv { font-family: var(--font-display); font-weight: 700; font-size: 13px; letter-spacing: .14em; color: var(--color-accent); width: 120px; flex: none; }
.arch-layer .lv small { display:block; color: var(--color-faint); font-size: 11px; letter-spacing: .1em; }
.arch-layer .items { display: flex; flex-wrap: wrap; gap: 8px; }
.arch-layer .items span { font-size: 13px; padding: 5px 12px; border-radius: var(--radius-pill); background: var(--color-accent-soft); border: 1px solid var(--color-accent-line); color: var(--color-text); }
.arch-layer.l1 .lv { color: var(--color-cyan); }
.arch-layer.l4 .lv { color: var(--color-accent-2); }

/* ============ 时间线（发展历程）============ */
.timeline { position: relative; padding-left: 34px; }
.timeline::before { content:""; position:absolute; left:9px; top:6px; bottom:6px; width:2px; background: linear-gradient(var(--color-accent), var(--color-accent-2)); }
.tl-item { position: relative; padding-bottom: var(--space-5); }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before { content:""; position:absolute; left:-34px; top:4px; width:20px; height:20px; border-radius:50%; background: var(--color-bg); border:2px solid var(--color-accent); box-shadow:0 0 14px var(--glow-1); }
.tl-item .yr { font-family: var(--font-display); font-weight: 700; font-size: 20px; color: var(--color-accent); }
.tl-item h3 { font-size: 18px; margin: 6px 0 6px; }
.tl-item p { font-size: 14.5px; }

/* ============ 案例筛选标签 ============ */
.case-filter { display:flex; flex-wrap:wrap; gap:10px; margin-bottom: var(--space-4); }
.case-filter button {
  font-family: var(--font-display); font-size: 13.5px; padding: 9px 16px; border-radius: var(--radius-pill);
  background-color: var(--glass-bg); border: 1px solid var(--glass-border); color: var(--color-muted);
  backdrop-filter: blur(var(--glass-blur)) saturate(150%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(150%);
  box-shadow: inset 0 1px 0 var(--glass-inner);
  transition: transform var(--dur-base) var(--ease-spring), color var(--dur-base), border-color var(--dur-base), background-color var(--dur-base), box-shadow var(--dur-base);
}
.case-filter button:hover { color: var(--color-text); border-color: var(--glass-border-hover); transform: translateY(-2px); }
.case-filter button.active { background: linear-gradient(135deg, var(--color-accent), var(--color-accent-strong)); color: var(--color-on-accent); border-color: transparent; box-shadow: 0 8px 24px var(--glow-1); }

/* ============ 页面头（子页 hero 简化版）============ */
.page-hero { position: relative; padding-top: calc(var(--nav-h) + 64px); padding-bottom: var(--space-6); overflow: hidden; }
.page-hero::after {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    repeating-linear-gradient(0deg, var(--scan-line) 0 1px, transparent 1px 60px),
    repeating-linear-gradient(90deg, var(--scan-line) 0 1px, transparent 1px 60px);
  mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(circle at 50% 0%, #000 0%, transparent 75%);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero .eyebrow { margin-bottom: var(--space-3); }
.page-hero h1 { font-size: clamp(34px,5vw,60px); line-height: 1.04; letter-spacing: -.03em; margin-bottom: var(--space-3); }
.page-hero p { max-width: 680px; font-size: 18px; }
.page-hero .crumbs { font-size: 14px; color: var(--color-muted); margin-bottom: var(--space-3); }
.page-hero .crumbs a:hover { color: var(--color-accent); }

/* ============ 联系表单 ============ */
.contact-form { display: grid; gap: var(--space-3); }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-size: 13px; letter-spacing: .08em; color: var(--color-muted); text-transform: uppercase; font-family: var(--font-display); }
.field input, .field textarea, .field select {
  font-family: var(--font-body); font-size: 15px; color: var(--color-text);
  background-color: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
  padding: 14px 16px; box-shadow: inset 0 1px 0 var(--glass-inner);
  backdrop-filter: blur(var(--glass-blur)) saturate(150%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(150%);
  transition: border-color var(--dur-base), box-shadow var(--dur-base), background-color var(--dur-base);
}
.field input:focus, .field textarea:focus, .field select:focus { outline:none; border-color: var(--color-accent); background-color: var(--glass-bg-hover); box-shadow: 0 0 0 3px var(--color-accent-soft), inset 0 1px 0 var(--glass-inner); }
.field textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: 13px; color: var(--color-faint); }
.form-ok { display:none; padding: 14px 16px; border-radius: var(--radius-lg); background: var(--color-accent-soft); border:1px solid var(--color-accent-line); color: var(--color-text); font-size: 14.5px; }
.form-ok.show { display:block; animation: okIn var(--dur-slow) var(--ease-spring); }
@keyframes okIn { from { opacity: 0; transform: translateY(8px) scale(.98); } to { opacity: 1; transform: none; } }

/* ============ 资质 / 数据卡（关于页）============ */
.cert-grid { display:grid; grid-template-columns: repeat(4,1fr); gap:1px; background: var(--glass-border); border:1px solid var(--glass-border); border-radius: var(--radius-xl); overflow:hidden; backdrop-filter: blur(var(--glass-blur)) saturate(150%); -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(150%); box-shadow: var(--shadow-1); }
.cert { background-color: var(--glass-bg); background-image: linear-gradient(180deg, var(--glow-3), transparent 74%); padding: var(--space-4); text-align:center; transition: background-color var(--dur-base) var(--ease-out); }
.cert:hover { background-color: var(--glass-bg-hover); }
.cert .big { font-family: var(--font-display); font-weight:700; font-size: clamp(28px,3vw,40px); color: var(--color-text); font-variant-numeric: tabular-nums; }
.cert .big .plus { color: var(--color-accent); }
.cert span { display:block; margin-top:8px; font-size:13.5px; color: var(--color-muted); }

/* ============ 响应式（多页元素）============ */
@media (max-width: 1080px) {
  .process { grid-template-columns: repeat(3,1fr); gap: var(--space-4); }
  .process::before { display: none; }
  .cert-grid { grid-template-columns: repeat(2,1fr); }
  .arch-layer { flex-direction: column; align-items: flex-start; gap: 10px; }
  .arch-layer .lv { width: auto; }
}
@media (max-width: 760px) {
  .section { padding-block: clamp(48px, 12vw, 72px); }
  .section-head { margin-bottom: var(--space-5); }
  .process { grid-template-columns: 1fr 1fr; }
  .cert-grid { grid-template-columns: 1fr 1fr; }
  .cta-band { margin-block: var(--space-6); padding: clamp(28px, 7vw, 40px); }
  .cta-band .hero-actions .btn { flex: 1 1 100%; justify-content: center; }
  .page-hero { padding-top: calc(var(--nav-h) + 32px); }
  .page-hero h1 { font-size: clamp(28px, 8vw, 38px); }
  .page-hero p { font-size: 16px; }
  .case-filter { gap: 8px; }
  .case-filter button { font-size: 13px; padding: 8px 13px; }
  .field input, .field textarea { font-size: 16px; }  /* ≥16px 防 iOS 聚焦自动放大 */
  .contact-card { padding: var(--space-4); }
  .faq-q { font-size: 15.5px; padding: 16px; }
  .faq-a .inner { padding: 0 16px 16px; font-size: 14.5px; }
}