/* =============================================================
   QUANXIN · SCI-FI SKIN  (2026-10)
   -------------------------------------------------------------
   纯覆盖层：不修改结构与内容，只重绘视觉。
   回退方式：删掉 base.html 里引用本文件的那一行 <link> 即可。
   ============================================================= */

/* -------------------------------------------------------------
   1. 设计令牌覆盖：冷青 HUD 色系 + 近乎直角的工业形态
   ------------------------------------------------------------- */
:root {
  --bg: #04060a;
  --bg-soft: #060a11;
  --bg-elev: #0a1018;

  --surface: rgba(0, 229, 255, 0.04);
  --surface-hover: rgba(0, 229, 255, 0.075);
  --line: rgba(0, 229, 255, 0.13);
  --line-strong: rgba(0, 229, 255, 0.32);

  --text: #e9fbff;
  --text-2: #9db6c8;
  --text-3: #5f7a8c;

  --brand: #0aa6ff;
  --brand-2: #00e5ff;
  --brand-3: #7c5cff;
  --grad: linear-gradient(118deg, #0aa6ff 0%, #00e5ff 58%, #5ffbf1 100%);
  --grad-soft: linear-gradient(135deg, rgba(10, 166, 255, 0.18), rgba(0, 229, 255, 0.05));

  --radius: 3px;
  --radius-lg: 4px;
  --radius-sm: 2px;

  --shadow-sm: 0 6px 22px -12px rgba(0, 0, 0, 0.95);
  --shadow: 0 26px 70px -34px rgba(0, 0, 0, 0.98);
  --glow: 0 0 0 1px rgba(0, 229, 255, 0.4), 0 0 48px -14px rgba(0, 229, 255, 0.6);

  --hud: #00e5ff;
  --hud-dim: rgba(0, 229, 255, 0.35);
  --warn: #ff7a3d;

  --font-num: "Bahnschrift", "DIN Alternate", "SF Mono", "JetBrains Mono", Consolas,
    "Microsoft YaHei", monospace;
}

/* -------------------------------------------------------------
   2. 全局背景：深空 + 坐标网格 + CRT 扫描线
   ------------------------------------------------------------- */
body {
  background:
    radial-gradient(ellipse 72% 52% at 50% -8%, rgba(10, 166, 255, 0.1), transparent 66%),
    radial-gradient(ellipse 46% 34% at 100% 104%, rgba(124, 92, 255, 0.06), transparent 70%),
    linear-gradient(180deg,
      rgba(4, 6, 10, 0.55) 0%,
      rgba(4, 6, 10, 0.68) 30%,
      rgba(4, 6, 10, 0.8) 62%,
      rgba(4, 6, 10, 0.9) 100%),
    url("../img/tech-bg-v2.jpg") center top / cover no-repeat #050608;
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.055) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 12%, transparent 88%);
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 12%, transparent 88%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.022) 0 1px,
    transparent 1px 4px
  );
  opacity: 0.65;
}

/* 内容压在装饰层之上（header 自身 z-index 更高，不受影响） */
main,
.site-footer {
  position: relative;
  z-index: 2;
}

/* -------------------------------------------------------------
   3. 顶栏：HUD 状态条 + 扫描线
   ------------------------------------------------------------- */
.site-header {
  background: rgba(4, 6, 10, 0.74);
  border-bottom: 1px solid rgba(0, 229, 255, 0.12);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.9), transparent);
  background-size: 38% 100%;
  background-repeat: no-repeat;
  animation: hudScan 6s linear infinite;
}

@keyframes hudScan {
  0% {
    background-position: -40% 0;
  }
  100% {
    background-position: 140% 0;
  }
}

.site-header.is-scrolled {
  background: rgba(4, 6, 10, 0.94);
}

/* 品牌标记：发光方章 */
.brand-mark {
  border-radius: 2px;
  background: linear-gradient(140deg, #0aa6ff, #00e5ff);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.65), inset 0 0 10px rgba(255, 255, 255, 0.4);
}

.brand-text strong {
  letter-spacing: 0.02em;
}

.brand-text small {
  color: var(--hud-dim);
  letter-spacing: 0.3em;
  font-family: var(--font-num);
}

/* 导航：仪表式下划线 */
.nav > a {
  border-radius: 2px;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
}

.nav > a:hover {
  background: rgba(0, 229, 255, 0.06);
  color: #d8f6ff;
}

.nav > a.is-active::after {
  width: 70%;
  height: 1px;
  bottom: 1px;
  border-radius: 0;
  background: linear-gradient(90deg, transparent, var(--hud), transparent);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.9);
}

/* -------------------------------------------------------------
   4. 按钮：切角 + 硬边发光
   ------------------------------------------------------------- */
.btn {
  border-radius: 2px;
  letter-spacing: 0.04em;
}

.btn-primary {
  clip-path: polygon(
    13px 0,
    100% 0,
    100% calc(100% - 13px),
    calc(100% - 13px) 100%,
    0 100%,
    0 13px
  );
  background: linear-gradient(118deg, #0aa6ff, #00e5ff 62%, #6ffcf4);
  color: #02131a;
  font-weight: 700;
  filter: drop-shadow(0 0 16px rgba(0, 229, 255, 0.5));
  box-shadow: none;
}

.btn-primary:hover {
  color: #02131a;
  filter: drop-shadow(0 0 26px rgba(0, 229, 255, 0.85));
  box-shadow: none;
}

.btn-ghost {
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: 2px;
  background: rgba(0, 229, 255, 0.05);
  color: #cdf3ff;
}

.btn-ghost:hover {
  border-color: rgba(0, 229, 255, 0.7);
  background: rgba(0, 229, 255, 0.1);
  color: #fff;
  box-shadow: 0 0 24px -8px rgba(0, 229, 255, 0.8);
}

.btn-link {
  color: var(--hud);
  letter-spacing: 0.04em;
}

.btn-link:hover {
  color: #8ff8ff;
}

/* -------------------------------------------------------------
   5. 小标签：仪表铭牌
   ------------------------------------------------------------- */
.eyebrow {
  padding: 4px 14px 4px 11px;
  border: 0;
  border-left: 2px solid var(--hud);
  border-radius: 0;
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.16), rgba(0, 229, 255, 0));
  color: #8ff2ff;
  font-family: var(--font-num);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 4px;
  height: 4px;
  border-radius: 0;
  background: var(--hud);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.95);
  transform: rotate(45deg);
  animation: dotBlink 2.4s steps(1, end) infinite;
}

@keyframes dotBlink {
  0%,
  72% {
    opacity: 1;
  }
  76%,
  92% {
    opacity: 0.25;
  }
  96%,
  100% {
    opacity: 1;
  }
}

/* -------------------------------------------------------------
   6. 区块标题：上方发光刻度线
   ------------------------------------------------------------- */
.section-head h2 {
  letter-spacing: -0.02em;
}

.section-head h2::before {
  content: "";
  display: block;
  width: 46px;
  height: 2px;
  margin-bottom: 18px;
  background: var(--grad);
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.9);
}

.section-head--center h2::before {
  margin-inline: auto;
}

/* -------------------------------------------------------------
   7. 卡片：HUD 面板（切角 / 内发光 / 网格纹理）
   ------------------------------------------------------------- */
.card {
  border: 1px solid rgba(0, 229, 255, 0.14);
  border-radius: 2px;
  background-color: rgba(6, 12, 20, 0.82);
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.035) 1px, transparent 1px),
    linear-gradient(160deg, rgba(8, 17, 27, 0.9), rgba(4, 8, 14, 0.92));
  background-size: 26px 26px, 26px 26px, 100% 100%;
  box-shadow: inset 0 1px 0 rgba(0, 229, 255, 0.1);
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease),
    transform 0.3s var(--ease);
}

.card::before {
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.95), transparent);
  left: 0;
  right: 0;
  height: 2px;
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.8);
}

.card:hover {
  border-color: rgba(0, 229, 255, 0.45);
  background-color: rgba(8, 16, 26, 0.9);
  box-shadow: inset 0 1px 0 rgba(0, 229, 255, 0.2), 0 0 42px -18px rgba(0, 229, 255, 0.65);
}

.card--lift:hover {
  transform: translateY(-4px);
  box-shadow: inset 0 1px 0 rgba(0, 229, 255, 0.22), 0 0 46px -16px rgba(0, 229, 255, 0.7);
}

/* 图标徽章：直角 + 发光描边 */
.icon-badge {
  width: 44px;
  height: 44px;
  border: 1px solid rgba(0, 229, 255, 0.4);
  border-radius: 2px;
  background: linear-gradient(150deg, rgba(0, 229, 255, 0.16), rgba(0, 229, 255, 0.02));
  color: var(--hud);
  box-shadow: inset 0 0 16px -6px rgba(0, 229, 255, 0.7);
}

.cap-card:hover .icon-badge {
  box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.6), 0 0 28px -6px rgba(0, 229, 255, 0.8);
}

.card-index,
.sol-num {
  color: var(--hud-dim);
  letter-spacing: 0.16em;
}

.cap-list li {
  border-radius: 1px;
  border-color: rgba(0, 229, 255, 0.16);
  color: #86a6b8;
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
}

/* -------------------------------------------------------------
   8. 数据条：作战仪表盘
   ------------------------------------------------------------- */
.stats {
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(6, 14, 22, 0.9), rgba(4, 8, 14, 0.9));
  box-shadow: inset 0 0 60px -30px rgba(0, 229, 255, 0.9), 0 0 40px -24px rgba(0, 229, 255, 0.5);
}

.stat {
  position: relative;
  background: transparent;
  padding-inline: clamp(22px, 3vw, 38px);
}

.stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 8px;
  height: 8px;
  border-left: 1px solid rgba(0, 229, 255, 0.55);
  border-top: 1px solid rgba(0, 229, 255, 0.55);
  pointer-events: none;
}

.stat:hover {
  background: rgba(0, 229, 255, 0.045);
}

.stat strong {
  letter-spacing: -0.01em;
  text-shadow: 0 0 30px rgba(0, 229, 255, 0.5);
}

.stat span {
  color: #7b98a9;
  font-family: var(--font-num);
  letter-spacing: 0.12em;
  font-size: 0.78rem;
}

.stat::after {
  width: 2px;
  background: linear-gradient(180deg, transparent, var(--hud), transparent);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.9);
}

/* -------------------------------------------------------------
   9. HERO：指挥中心首屏
   ------------------------------------------------------------- */
.hero {
  border-bottom: 1px solid rgba(0, 229, 255, 0.1);
}

.hero-copy h1 {
  letter-spacing: -0.032em;
  line-height: 1.06;
}

.hero-copy h1 em {
  filter: drop-shadow(0 0 30px rgba(0, 229, 255, 0.55));
}

.hero-copy .lede {
  color: #a9c3d4;
}

/* HUD 状态行（装饰，文案来自后台 ui.hud） */
.hero-hud {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  padding: 5px 12px 5px 10px;
  border: 1px solid rgba(0, 229, 255, 0.22);
  border-radius: 2px;
  background: rgba(0, 229, 255, 0.05);
  color: #86dfef;
  font-family: var(--font-num);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-hud i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #2dffb3;
  box-shadow: 0 0 10px #2dffb3;
  animation: hudPulse 1.8s ease-in-out infinite;
}

@keyframes hudPulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.35;
    transform: scale(0.8);
  }
}

/* 首屏四角括线 */
.hero-inner::before,
.hero-inner::after {
  content: "";
  position: absolute;
  width: 26px;
  height: 26px;
  pointer-events: none;
  z-index: 2;
  opacity: 0.6;
}

.hero-inner::before {
  left: -14px;
  top: -14px;
  border-left: 1px solid var(--hud);
  border-top: 1px solid var(--hud);
}

.hero-inner::after {
  right: -14px;
  bottom: -14px;
  border-right: 1px solid var(--hud);
  border-bottom: 1px solid var(--hud);
}

/* 平台截图：HUD 外框 */
.console {
  border: 1px solid rgba(0, 229, 255, 0.4);
  border-radius: 2px;
  box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.12), 0 0 70px -26px rgba(0, 229, 255, 0.75);
}

.hero-visual:hover .console {
  box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.3), 0 0 90px -20px rgba(0, 229, 255, 0.95);
  transform: translateY(-4px);
}

/* 悬浮小卡：终端风格 */
.float-chip {
  border: 1px solid rgba(0, 229, 255, 0.35);
  border-radius: 2px;
  background: rgba(5, 12, 20, 0.94);
  box-shadow: 0 0 30px -12px rgba(0, 229, 255, 0.6);
  font-family: var(--font-num);
}

.float-chip b {
  border-radius: 1px;
  background: rgba(0, 229, 255, 0.14);
  color: var(--hud);
}

/* 信任条：刻度分隔 */
.hero-trust {
  border-top: 1px solid rgba(0, 229, 255, 0.12);
  font-family: var(--font-num);
  letter-spacing: 0.05em;
}

.hero-trust svg {
  color: var(--hud);
}

/* -------------------------------------------------------------
   10. 单位条 / 流程 / 报价 / 案例：统一 HUD 语言
   ------------------------------------------------------------- */
.logo-wall {
  border-bottom: 1px solid rgba(0, 229, 255, 0.1);
}

.logo-wall p {
  font-family: var(--font-num);
  color: #5f7f91;
}

.logo-row span {
  color: #4d6879;
  letter-spacing: 0.08em;
}

.logo-row span:hover {
  color: var(--hud);
  text-shadow: 0 0 16px rgba(0, 229, 255, 0.7);
}

.solution-card {
  border-radius: 2px;
  border: 1px solid rgba(0, 229, 255, 0.14);
  background: linear-gradient(165deg, rgba(8, 17, 27, 0.9), rgba(4, 8, 14, 0.9));
}

.solution-card:hover {
  border-color: rgba(0, 229, 255, 0.5);
  box-shadow: 0 0 40px -16px rgba(0, 229, 255, 0.7);
}

.price-card {
  border-radius: 2px;
  background: rgba(6, 12, 20, 0.85);
}

.price-card--featured {
  border-color: rgba(0, 229, 255, 0.55);
  background: radial-gradient(ellipse 100% 90% at 50% 0%, rgba(0, 229, 255, 0.16), transparent 62%),
    linear-gradient(170deg, #08131f, #04080e);
}

.price-tag {
  border-radius: 2px;
  background: var(--grad);
  color: #02131a;
  letter-spacing: 0.1em;
}

.price-value strong {
  font-family: var(--font-num);
  text-shadow: 0 0 26px rgba(0, 229, 255, 0.5);
}

.filter-btn {
  border-radius: 2px;
  border-color: rgba(0, 229, 255, 0.2);
  font-family: var(--font-num);
  letter-spacing: 0.06em;
}

.filter-btn.is-active {
  background: rgba(0, 229, 255, 0.16);
  border-color: rgba(0, 229, 255, 0.7);
  color: #bff7ff;
  box-shadow: 0 0 24px -10px rgba(0, 229, 255, 0.9);
}

.anchor-nav a {
  border-radius: 0;
  border-left-width: 1px;
  font-family: var(--font-num);
  letter-spacing: 0.03em;
}

.anchor-nav a.is-current {
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.16), transparent);
  border-left: 2px solid var(--hud);
  color: #a8f4ff;
}

/* 流程步骤：编号仪表化 */
.process-step span {
  font-family: var(--font-num);
  color: var(--hud);
  text-shadow: 0 0 18px rgba(0, 229, 255, 0.8);
}

/* -------------------------------------------------------------
   11. CTA 大字条
   ------------------------------------------------------------- */
.cta-band {
  border-radius: 3px;
  border: 1px solid rgba(0, 229, 255, 0.3);
  background: radial-gradient(ellipse 90% 140% at 50% 0%, rgba(0, 229, 255, 0.2), transparent 62%),
    linear-gradient(165deg, #07121d, #04070c);
}

.cta-band::before {
  background: conic-gradient(
    from var(--cta-angle),
    rgba(0, 229, 255, 0.06) 0deg,
    rgba(0, 229, 255, 0.06) 240deg,
    rgba(0, 229, 255, 1) 305deg,
    rgba(111, 252, 244, 1) 330deg,
    rgba(0, 229, 255, 0.06) 360deg
  );
}

/* -------------------------------------------------------------
   12. 表单 / 页脚 / 悬浮按钮
   ------------------------------------------------------------- */
input,
textarea,
select {
  border-radius: 2px !important;
}

input:focus,
textarea:focus,
select:focus {
  border-color: rgba(0, 229, 255, 0.65) !important;
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.12) !important;
}

.site-footer {
  background: linear-gradient(180deg, #050a11, #03050a);
  border-top: 1px solid rgba(0, 229, 255, 0.14);
}

.site-footer::before {
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 229, 255, 0.9),
    rgba(111, 252, 244, 0.9),
    transparent
  );
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.6);
}

.footer-col h4 {
  font-family: var(--font-num);
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: #86a6b8;
  text-transform: uppercase;
}

.footer-social a {
  border-radius: 2px;
  border-color: rgba(0, 229, 255, 0.2);
}

.footer-social a:hover {
  border-color: rgba(0, 229, 255, 0.7);
  color: var(--hud);
  box-shadow: 0 0 20px -8px rgba(0, 229, 255, 0.9);
}

.qx-fab-btn {
  border-radius: 2px !important;
  border-color: rgba(0, 229, 255, 0.3) !important;
  background: rgba(5, 12, 20, 0.94) !important;
}

.qx-fab-btn:hover {
  border-color: rgba(0, 229, 255, 0.85) !important;
  box-shadow: 0 0 28px -8px rgba(0, 229, 255, 0.8) !important;
}

.qx-fab-btn svg {
  color: var(--hud) !important;
}

/* -------------------------------------------------------------
   13. 选中 / 滚动条
   ------------------------------------------------------------- */
::selection {
  background: rgba(0, 229, 255, 0.3);
  color: #eafcff;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #0d3a49, #0a2230);
  border-radius: 0;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, #12667d, #0d3a49);
}

/* -------------------------------------------------------------
   14. 「强」压强：首屏字号与角标加码
   ------------------------------------------------------------- */
.hero-copy h1 {
  font-size: clamp(2.35rem, 5.1vw, 4.05rem);
  line-height: 1.04;
  letter-spacing: -0.042em;
}

.hero-copy .lede {
  font-size: clamp(1rem, 1.55vw, 1.14rem);
  line-height: 1.85;
}

.section-head h2 {
  font-size: clamp(1.85rem, 3.9vw, 2.95rem);
  line-height: 1.14;
}

/* 平台截图四角括线，强化"指挥中心"观感 */
.hero-visual::before,
.hero-visual::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  pointer-events: none;
  z-index: 3;
  opacity: 0.75;
}

.hero-visual::before {
  left: -10px;
  top: -10px;
  border-left: 1px solid var(--hud);
  border-top: 1px solid var(--hud);
}

.hero-visual::after {
  right: -10px;
  bottom: -10px;
  border-right: 1px solid var(--hud);
  border-bottom: 1px solid var(--hud);
}

/* -------------------------------------------------------------
   15. 响应式 & 动效降级
   ------------------------------------------------------------- */
@media (max-width: 980px) {
  .hero-inner::before,
  .hero-inner::after {
    display: none;
  }
}

@media (max-width: 560px) {
  /* 手机端：换小图 + 遮罩加深（iOS 不支持 fixed 背景） */
  body {
    background-attachment: scroll;
    background-image:
      radial-gradient(ellipse 72% 52% at 50% -8%, rgba(10, 166, 255, 0.1), transparent 66%),
      linear-gradient(180deg,
        rgba(4, 6, 10, 0.64) 0%,
        rgba(4, 6, 10, 0.74) 30%,
        rgba(4, 6, 10, 0.84) 62%,
        rgba(4, 6, 10, 0.92) 100%),
      url("../img/tech-bg-v2-sm.jpg") center top / cover no-repeat #050608;
  }

  .eyebrow {
    letter-spacing: 0.14em;
  }
  .hero-hud {
    font-size: 0.64rem;
    letter-spacing: 0.1em;
  }
  .hero-copy h1 {
    font-size: 1.82rem;
    line-height: 1.14;
    letter-spacing: -0.03em;
    text-wrap: initial;
  }
  .hero-copy h1 em {
    filter: drop-shadow(0 0 18px rgba(0, 229, 255, 0.5));
  }
  .hero-visual::before,
  .hero-visual::after {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header::after,
  .eyebrow::before,
  .hero-hud i {
    animation: none;
  }
  body::after {
    display: none;
  }
}

/* -------------------------------------------------------------
   16. 修复：导航 CTA 与正文主按钮统一为深色字（对比度 7.1~15.2:1）
   ------------------------------------------------------------- */
.nav .nav-cta,
.nav .nav-cta:hover,
.nav .nav-cta:focus-visible {
  color: #02131a;
}

/* 移动端菜单里的 CTA 同样处理 */
@media (max-width: 900px) {
  .nav .nav-cta,
  .nav .nav-cta:hover {
    color: #02131a;
  }
}

/* -------------------------------------------------------------
   17. 案例封面图（后台可上传）
   ------------------------------------------------------------- */
.case-cover--img {
  display: block;
  height: 200px;
  background: #0a0d15;
}

.case-cover--img img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.65s var(--ease), filter 0.45s var(--ease);
  filter: saturate(0.95);
}

.case-card:hover .case-cover--img img {
  transform: scale(1.045);
  filter: saturate(1.05) brightness(1.05);
}

/* 图片版不显示内置渐变光 */
.case-cover--img::before,
.case-cover--img::after {
  content: none;
}

/* 底部渐隐，保证角标可读 */
.case-cover--img .cover-shade {
  position: absolute;
  inset: auto 0 0 0;
  height: 62%;
  background: linear-gradient(180deg, transparent, rgba(4, 6, 10, 0.88));
  z-index: 1;
  pointer-events: none;
}

/* badge 改为图上的小标签 */
.case-cover--img b {
  position: absolute;
  left: 14px;
  bottom: 13px;
  z-index: 2;
  padding: 4px 11px;
  border: 1px solid rgba(0, 229, 255, 0.32);
  border-radius: 2px;
  background: rgba(4, 8, 14, 0.78);
  color: #b8f4ff;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  backdrop-filter: blur(6px);
}

.case-cover--img i {
  z-index: 2;
  border-color: rgba(0, 229, 255, 0.3);
  color: #a9eaff;
}

/* -------------------------------------------------------------
   18. 科技感 v3 动态增强（配合 scifi-enhance.js）
   ------------------------------------------------------------- */

/* 星链粒子 / 光斑层：压在背景网格之上、正文之下 */
.qx-fx-layer {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.qx-fx-layer canvas {
  display: block;
}

/* 顶部滚动进度条 */
.qx-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  z-index: 130;
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.25), #00e5ff 60%, #5ffbf1);
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.9);
  pointer-events: none;
}

/* 首屏数码字符雨（0/1 数据流） */
.qx-digits {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.8;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.82) 58%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.82) 58%, transparent 100%);
}

/* 雷达扫描装饰 */
.qx-radar {
  position: absolute;
  top: 52px;
  right: 3%;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 1px solid rgba(0, 229, 255, 0.35);
  pointer-events: none;
  z-index: 0;
  opacity: 0.9;
  background:
    radial-gradient(circle, transparent 58%, rgba(0, 229, 255, 0.14) 59%, transparent 61%),
    radial-gradient(circle, transparent 29%, rgba(0, 229, 255, 0.12) 30%, transparent 32%);
}

.qx-radar::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(0, 229, 255, 0.55), transparent 80deg, transparent);
  animation: qxSpin 7s linear infinite;
}

.qx-radar::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #2dffb3;
  box-shadow: 0 0 14px #2dffb3, 0 0 30px rgba(45, 255, 179, 0.6);
  transform: translate(-50%, -50%);
}

@keyframes qxSpin {
  to {
    transform: rotate(360deg);
  }
}

/* 首屏内容入场：由 scifi-enhance.js 添加 qx-prep/qx-in（transition 驱动，
   无 JS 或弱动效环境自动跳过，内容始终可见） */
.hero-copy .qx-prep,
.hero-visual.qx-prep {
  opacity: 0;
  transform: translateY(26px);
}

.hero-copy .qx-prep.qx-in,
.hero-visual.qx-prep.qx-in {
  opacity: 1;
  transform: none;
}

.hero-copy .qx-prep,
.hero-visual.qx-prep {
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
}

/* 资产/部署卡片：hover 扫描光掠过 */
.solution-card {
  overflow: hidden;
}

.solution-card::before {
  content: "";
  position: absolute;
  left: -60%;
  top: 0;
  width: 45%;
  height: 100%;
  background: linear-gradient(105deg, transparent, rgba(0, 229, 255, 0.12), transparent);
  transform: skewX(-18deg);
  transition: left 0.7s var(--ease);
  pointer-events: none;
  z-index: 1;
}

.solution-card:hover::before {
  left: 130%;
}

/* 能力卡 hover 光晕统一为青色系 */
.cap-card::after {
  background: radial-gradient(circle, rgba(0, 229, 255, 0.12), transparent 70%);
}

/* 移动端 / 弱动效降级 */
@media (max-width: 900px) {
  .qx-fx-layer,
  .qx-radar {
    display: none;
  }

  .qx-digits {
    opacity: 0.3;
  }
}

@media (prefers-reduced-motion: reduce) {
  .qx-progress,
  .qx-fx-layer,
  .qx-digits,
  .qx-radar {
    display: none;
  }

  .hero-copy .qx-prep,
  .hero-visual.qx-prep {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .solution-card::before {
    content: none;
  }
}

/* -------------------------------------------------------------
   19. 科技感 v3.1：点击涟漪 / 跟随环 / HUD 四角括线
   ------------------------------------------------------------- */

/* 点击涟漪 */
.qx-ripple {
  position: fixed;
  z-index: 145;
  width: 18px;
  height: 18px;
  margin: -9px 0 0 -9px;
  border: 1px solid rgba(0, 229, 255, 0.9);
  border-radius: 50%;
  pointer-events: none;
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.75), inset 0 0 10px rgba(0, 229, 255, 0.45);
  animation: qxRipple 0.68s cubic-bezier(0.2, 0.7, 0.3, 1) forwards;
}

@keyframes qxRipple {
  0% {
    transform: scale(0.4);
    opacity: 1;
  }
  100% {
    transform: scale(4.6);
    opacity: 0;
  }
}

/* 鼠标跟随环（保留系统光标，只做辅助指示） */
.qx-cursor {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 150;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(0, 229, 255, 0.45);
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  will-change: transform;
  transition: opacity 0.25s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 0 14px -2px rgba(0, 229, 255, 0.5), inset 0 0 8px -2px rgba(0, 229, 255, 0.35);
}

.qx-cursor.is-on {
  opacity: 1;
}

.qx-cursor::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--hud);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 8px rgba(0, 229, 255, 0.9);
}

.qx-cursor.is-hot {
  border-color: rgba(95, 251, 241, 0.95);
  box-shadow: 0 0 24px -2px rgba(0, 229, 255, 0.85), inset 0 0 14px -2px rgba(0, 229, 255, 0.5);
}

/* 卡片 hover：四角 HUD 括线 */
.solution-card,
.price-card {
  position: relative;
}

.card:not(.cap-card)::after,
.solution-card::after,
.price-card::after {
  content: "";
  position: absolute;
  inset: 7px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  background:
    linear-gradient(var(--hud), var(--hud)) left top / 13px 1px no-repeat,
    linear-gradient(var(--hud), var(--hud)) left top / 1px 13px no-repeat,
    linear-gradient(var(--hud), var(--hud)) right top / 13px 1px no-repeat,
    linear-gradient(var(--hud), var(--hud)) right top / 1px 13px no-repeat,
    linear-gradient(var(--hud), var(--hud)) left bottom / 13px 1px no-repeat,
    linear-gradient(var(--hud), var(--hud)) left bottom / 1px 13px no-repeat,
    linear-gradient(var(--hud), var(--hud)) right bottom / 13px 1px no-repeat,
    linear-gradient(var(--hud), var(--hud)) right bottom / 1px 13px no-repeat;
}

.card:not(.cap-card):hover::after,
.solution-card:hover::after,
.price-card:hover::after {
  opacity: 0.9;
}

@media (max-width: 900px) {
  .qx-cursor,
  .qx-ripple {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .qx-cursor,
  .qx-ripple {
    display: none;
  }
}

/* -------------------------------------------------------------
   20. 首屏演示视频播放卡
   ------------------------------------------------------------- */
.console--video video {
  display: block;
  width: 100%;
  aspect-ratio: 1280 / 672;
  object-fit: cover;
  background: #05070c;
}

.console--video .hero-play {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  border: 0;
  cursor: pointer;
  background: linear-gradient(180deg, rgba(4, 8, 14, 0.06), rgba(4, 8, 14, 0.42));
  color: #eafcff;
  font: inherit;
  transition: background 0.35s var(--ease);
}

.console--video .hero-play:hover {
  background: linear-gradient(180deg, rgba(4, 8, 14, 0.02), rgba(4, 8, 14, 0.3));
}

.hero-play-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 74px;
  height: 74px;
  border-radius: 50%;
  border: 1px solid rgba(0, 229, 255, 0.75);
  background: radial-gradient(circle at 35% 30%, rgba(0, 229, 255, 0.35), rgba(6, 16, 26, 0.9));
  box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.2), 0 0 46px -8px rgba(0, 229, 255, 0.85),
    inset 0 0 18px rgba(0, 229, 255, 0.3);
  color: #bff7ff;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.hero-play-btn svg {
  width: 30px;
  height: 30px;
  margin-left: 4px;
  filter: drop-shadow(0 0 10px rgba(0, 229, 255, 0.9));
}

.console--video .hero-play:hover .hero-play-btn {
  transform: scale(1.08);
  box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.4), 0 0 66px -6px rgba(0, 229, 255, 1),
    inset 0 0 24px rgba(0, 229, 255, 0.4);
}

.hero-play-label {
  padding: 6px 16px;
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: 2px;
  background: rgba(4, 10, 18, 0.78);
  font-family: var(--font-num);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  color: #a9eaff;
  backdrop-filter: blur(6px);
}

/* 播放后：隐藏按钮与封面遮罩，让位给原生控件 */
.console--video .hero-play.is-hidden {
  display: none;
}

/* -------------------------------------------------------------
   21. 品牌 logo 图片版（原 SVG 菱形 → 公司盾牌 logo）
   ------------------------------------------------------------- */
.brand-mark {
  background: transparent;
  border-radius: 8px;
  box-shadow: none;
  overflow: visible;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 0 14px rgba(0, 229, 255, 0.35));
  transition: filter 0.3s var(--ease);
}

.brand:hover .brand-mark img {
  filter: drop-shadow(0 0 20px rgba(0, 229, 255, 0.65));
}