/* ==========================================================================
       北京基智科技有限公司 (StepOneAI · steponeai.com)
       彩讯股份（300634）控股子公司 · 文曲星大模型 & 睿驰大模型双引擎驱动
       已锁定视觉：风格 3「声波脉冲 · 纯净几何风 (Acoustic Pure Geometry)」
       全系正宗基智蓝 (#016DFF) · Voice 排第一 · GEO 全结构含代理商体系
       支持 PC 端 + 手机端自适应 + 10 国语言防溢出排版 + 自研 AI 客服机器人
       ========================================================================== */
    :root {
      --brand: #016DFF;
      --brand-hover: #0058D6;
      --brand-deep: #0040A8;
      --brand-ice: #3A98FE;
      --brand-soft: rgba(1, 109, 255, 0.08);
      --brand-soft-strong: rgba(1, 109, 255, 0.14);
      --brand-border: rgba(1, 109, 255, 0.22);
      --bg-page: #F7FAFF;
      --bg-subtle: #EDF3FF;
      --bg-white: #FFFFFF;
      --bg-card: rgba(255, 255, 255, 0.94);
      --ecosystem-bg: #071226;
      --cockpit-bg: #08152E;
      --text-main: #071021;
      --text-secondary: #3B4C68;
      --text-muted: #64748B;
      --border-line: rgba(1, 109, 255, 0.12);
      --border-hover: rgba(1, 109, 255, 0.48);
      --radius-card: 24px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --radius-pill: 9999px;
      --shadow-soft: 0 16px 40px -14px rgba(7, 24, 62, 0.07);
      --shadow-hover: 0 24px 52px -14px rgba(1, 109, 255, 0.16);
      --shadow-cockpit: 0 30px 72px -16px rgba(5, 18, 46, 0.34);
      --title-grad: linear-gradient(135deg, #071021 0%, #016DFF 54%, #00A6FF 100%);
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB", "Microsoft YaHei", "Inter", "Segoe UI", Roboto, sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.62;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
      overflow-wrap: break-word;
      word-wrap: break-word;
    }
    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
      color: inherit;
      border: none;
      outline: none;
      background: none;
    }
    button { cursor: pointer; text-align: inherit; }
    a { color: inherit; text-decoration: none; }
    ul { list-style: none; }
    svg { flex-shrink: 0; }

    /* 多语言长单词防溢出与排版自适应机制 (专门解决德/法/荷/西/菲/英长词撑破布局) */
    h1, h2, h3, h4, p, span, div, li, a, button {
      overflow-wrap: break-word;
      word-break: break-word;
    }
    html:not([lang="zh-CN"]):not([lang="ja"]):not([lang="ko"]) {
      hyphens: auto;
      -webkit-hyphens: auto;
    }
    html:not([lang="zh-CN"]):not([lang="ja"]):not([lang="ko"]) .hero-h1 {
      font-size: clamp(26px, 3.1vw, 40px);
      line-height: 1.22;
      letter-spacing: -0.015em;
    }
    html:not([lang="zh-CN"]):not([lang="ja"]):not([lang="ko"]) .subpage-h1 {
      font-size: clamp(22px, 2.5vw, 32px);
      line-height: 1.24;
    }
    html:not([lang="zh-CN"]):not([lang="ja"]):not([lang="ko"]) .section-h2 {
      font-size: clamp(20px, 2.3vw, 28px);
      line-height: 1.26;
    }
    html:not([lang="zh-CN"]):not([lang="ja"]):not([lang="ko"]) .nav-link-btn {
      padding: 6px 9px;
      font-size: 12.5px;
    }
    html:not([lang="zh-CN"]):not([lang="ja"]):not([lang="ko"]) .header-actions .btn-sm {
      padding: 7px 12px;
      font-size: 12px;
    }

    /* 阿拉伯语 RTL 从右向左镜像适配 */
    [dir="rtl"] .footer-col button, [dir="rtl"] .footer-col a { text-align: right; }
    [dir="rtl"] .faq-q { text-align: right; }
    [dir="rtl"] .wecom-col { border-right: none; border-left: 1px solid #E8F0FE; }
    [dir="rtl"] .wecom-col:last-child { border-left: none; }
    [dir="rtl"] .lang-dropdown { right: auto; left: 0; }
    [dir="rtl"] .matrix-popover { left: auto; right: 0; }
    [dir="rtl"] .matrix-popover.align-center { left: auto; right: 50%; transform: translateX(50%) translateY(8px) scale(0.985); }
    [dir="rtl"] .hover-matrix-anchor.open .matrix-popover.align-center { transform: translateX(50%) translateY(0) scale(1); }

    .container {
      width: 100%;
      max-width: 1260px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 所有 Grid 强制 minmax(0, 1fr) 防止长外语单词撑宽列宽 */
    .grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
    .grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
    .grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
    .grid-5 { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; }
    .grid-6 { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; }
    .grid-2 > *, .grid-3 > *, .grid-4 > *, .grid-5 > *, .grid-6 > *, .split-hero > * {
      min-width: 0;
    }

    

    @keyframes pulseDot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.45; transform: scale(1.32); }
    }
    @keyframes waveBeat {
      0%, 100% { transform: scaleY(0.28); opacity: 0.52; }
      50% { transform: scaleY(1); opacity: 1; }
    }
    @keyframes voiceEqDance {
      0%, 100% { transform: scaleY(0.26); opacity: 0.48; }
      45% { transform: scaleY(1); opacity: 1; }
      72% { transform: scaleY(0.58); opacity: 0.82; }
    }
    @keyframes voiceRadarRipple {
      0% { transform: scale(0.86); opacity: 0.72; }
      100% { transform: scale(1.72); opacity: 0; }
    }
    @keyframes widgetAwakeGlow {
      0% { filter: drop-shadow(0 0 0 rgba(1, 109, 255, 0)); }
      40% { filter: drop-shadow(0 0 26px rgba(1, 109, 255, 0.65)); }
      100% { filter: drop-shadow(0 12px 28px rgba(7, 16, 33, 0.24)); }
    }

    .live-dot {
      width: 7px; height: 7px; border-radius: 50%;
      background: #016DFF;
      box-shadow: 0 0 0 3px rgba(1, 109, 255, 0.22);
      display: inline-block; flex-shrink: 0;
      animation: pulseDot 2.1s ease-in-out infinite;
    }

    .voice-bars {
      display: inline-flex; align-items: center; gap: 3px;
      height: 16px; vertical-align: middle; flex-shrink: 0;
    }
    .voice-bars i {
      display: inline-block; width: 3px; height: 100%; border-radius: 99px;
      background: linear-gradient(180deg, #38BDF8 0%, #016DFF 100%);
      transform-origin: center;
      animation: waveBeat 1.02s ease-in-out infinite;
    }

    /* 右侧实时语音声场交互演示舱（点击直接唤醒浮窗实时语音通话） */
    .voice-interactive-shell {
      cursor: pointer;
      transition: transform 0.24s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.24s ease;
    }
    .voice-interactive-shell:hover {
      transform: translateY(-4px);
      box-shadow: 0 34px 80px -14px rgba(1, 109, 255, 0.42);
    }
    .voice-interactive-shell:active {
      transform: translateY(-1px) scale(0.994);
    }
    .voice-stage-box {
      position: relative;
      padding: 18px 16px 15px;
      border-radius: 18px;
      background: radial-gradient(circle at 50% 35%, rgba(1, 109, 255, 0.28) 0%, rgba(8, 21, 46, 0.92) 78%);
      border: 1px solid rgba(56, 189, 248, 0.38);
      margin-bottom: 14px;
      overflow: hidden;
      transition: border-color 0.22s ease, background 0.22s ease;
    }
    .voice-interactive-shell:hover .voice-stage-box {
      border-color: #38BDF8;
    }
    .voice-eq-row {
      display: flex; align-items: center; justify-content: space-between;
      gap: 3px; height: 54px; padding: 0 4px;
    }
    .voice-eq-bar {
      flex: 1 1 0; max-width: 5px; min-width: 2px; border-radius: 99px;
      background: linear-gradient(180deg, #38BDF8 0%, #016DFF 65%, #3A98FE 100%);
      transform-origin: center;
      animation: voiceEqDance 1.28s ease-in-out infinite;
    }
    .voice-radar-wrap {
      position: relative; width: 54px; height: 54px;
      display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0;
    }
    .voice-radar-ring {
      position: absolute; inset: 0; border-radius: 50%;
      border: 1.5px solid rgba(56, 189, 248, 0.65);
      animation: voiceRadarRipple 2.2s cubic-bezier(0.16, 1, 0.3, 1) infinite;
      pointer-events: none;
    }
    .voice-radar-ring.delay-2 {
      animation-delay: 1.1s;
    }
    .voice-radar-core {
      position: relative; z-index: 2;
      width: 44px; height: 44px; border-radius: 50%;
      background: linear-gradient(135deg, #016DFF 0%, #0EA5E9 100%);
      color: #FFFFFF; display: flex; align-items: center; justify-content: center;
      box-shadow: 0 8px 22px rgba(1, 109, 255, 0.55);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .voice-interactive-shell:hover .voice-radar-core {
      transform: scale(1.08);
      box-shadow: 0 10px 28px rgba(56, 189, 248, 0.72);
    }
    .voice-call-cta-bar {
      display: flex; align-items: center; justify-content: space-between; gap: 12px;
      margin-top: 14px; padding: 10px 14px; border-radius: 14px;
      background: rgba(1, 109, 255, 0.24);
      border: 1px solid rgba(96, 165, 250, 0.42);
      color: #FFFFFF; font-size: 12.5px; font-weight: 700;
      transition: background 0.2s ease, border-color 0.2s ease;
    }
    .voice-interactive-shell:hover .voice-call-cta-bar {
      background: linear-gradient(90deg, rgba(1, 109, 255, 0.85) 0%, rgba(14, 165, 233, 0.78) 100%);
      border-color: #BAE6FD;
    }
    #stepone-agent-iframe.voice-awake {
      animation: widgetAwakeGlow 0.9s ease-out;
    }

    /* 基智 GEO「六脉神剑」六步脉冲卡片栅格 */
    .six-pulse-grid {
      display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px;
      margin-bottom: 22px;
    }
    .six-pulse-card {
      position: relative; padding: 16px 14px; border-radius: 18px;
      background: #FFFFFF; border: 1px solid rgba(1, 109, 255, 0.16);
      box-shadow: 0 10px 26px -12px rgba(7, 24, 62, 0.08);
      display: flex; flex-direction: column; justify-content: space-between; min-width: 0;
      transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    }
    .six-pulse-card:hover {
      transform: translateY(-3px); border-color: #016DFF;
      box-shadow: 0 18px 36px -12px rgba(1, 109, 255, 0.2);
    }
    .six-pulse-card.pulse-highlight {
      background: linear-gradient(160deg, #F0F7FF 0%, #FFFFFF 100%);
      border: 1.5px solid #016DFF;
    }
    @media (max-width: 1180px) {
      .six-pulse-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    }
    @media (max-width: 720px) {
      .six-pulse-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    }
    @media (max-width: 480px) {
      .six-pulse-grid { grid-template-columns: minmax(0, 1fr); }
    }

    /* 顶部纯净单行主导航栏 (自适应多语言防挤压) */
    .site-header {
      position: sticky; top: 0; z-index: 100;
      background: rgba(247, 250, 255, 0.90);
      backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border-line);
    }
    .header-row {
      display: flex; align-items: center; justify-content: space-between;
      min-height: 68px; padding: 8px 0; gap: 10px;
    }
    .brand-cluster { display: flex; align-items: center; gap: 10px; flex-shrink: 0; min-width: 0; }
    .brand-home-btn { display: inline-flex; align-items: center; gap: 9px; text-align: left; flex-shrink: 0; }
    .stepone-logo-box {
      width: 34px; height: 34px; border-radius: 10px;
      background: linear-gradient(145deg, #016DFF 0%, #004AD6 100%);
      display: flex; align-items: center; justify-content: center;
      box-shadow: 0 6px 16px -4px rgba(1, 109, 255, 0.45); flex-shrink: 0;
    }
    .brand-lockup { display: flex; flex-direction: column; line-height: 1.15; }
    .brand-en { font-size: 16.5px; font-weight: 800; letter-spacing: -0.02em; color: #071021; white-space: nowrap; }
    .brand-cn { font-size: 10.5px; font-weight: 600; color: var(--text-muted); white-space: nowrap; }

    .slash-divider { color: #CBD5E1; font-size: 18px; font-weight: 300; user-select: none; }
    .hover-matrix-anchor { position: relative; display: inline-flex; align-items: center; }

    .subbrand-switcher {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 6px 12px; border-radius: var(--radius-pill);
      background: var(--brand-soft); border: 1px solid var(--brand-border);
      color: var(--brand); font-size: 12.5px; font-weight: 700; transition: all 0.18s ease;
      white-space: nowrap; max-width: 210px; overflow: hidden; text-overflow: ellipsis;
    }
    .hover-matrix-anchor.open .subbrand-switcher,
    .subbrand-switcher:hover { background: var(--brand); color: #FFFFFF; border-color: var(--brand); }

    .chevron-icon { display: inline-block; font-size: 11px; transition: transform 0.2s ease; }
    .hover-matrix-anchor.open .chevron-icon { transform: rotate(180deg); }

    .nav-links {
      display: flex; align-items: center; justify-content: center;
      gap: 2px; flex-wrap: nowrap; min-width: 0;
    }
    .nav-link-btn {
      display: inline-flex; align-items: center; gap: 4px;
      padding: 7px 12px; border-radius: var(--radius-pill);
      font-size: 13.5px; font-weight: 600; color: var(--text-secondary);
      transition: all 0.18s ease; white-space: nowrap;
    }
    .nav-link-btn:hover,
    .hover-matrix-anchor.open > .nav-link-btn { color: var(--brand); background: var(--brand-soft); }
    .nav-link-btn.active { color: var(--brand); background: var(--brand-soft-strong); font-weight: 700; }

    /* 零点击丝滑悬停产品矩阵浮窗 */
    .matrix-popover {
      position: absolute; top: calc(100% + 12px); left: 0;
      width: 660px; max-width: calc(100vw - 32px); padding: 20px; border-radius: 22px;
      background: rgba(255, 255, 255, 0.98);
      backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px);
      border: 1px solid rgba(1, 109, 255, 0.2);
      box-shadow: 0 28px 68px -12px rgba(7, 24, 62, 0.24);
      opacity: 0; visibility: hidden; pointer-events: none;
      transform: translateY(8px) scale(0.985);
      transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
      z-index: 150; text-align: left; color: #071021;
    }
    .matrix-popover.align-center {
      left: 50%; transform: translateX(-50%) translateY(8px) scale(0.985);
    }
    .matrix-popover::before {
      content: ""; position: absolute; top: -16px; left: 0; right: 0; height: 16px;
    }
    .hover-matrix-anchor.open .matrix-popover {
      opacity: 1; visibility: visible; pointer-events: auto;
      transform: translateY(0) scale(1);
    }
    .hover-matrix-anchor.open .matrix-popover.align-center {
      transform: translateX(-50%) translateY(0) scale(1);
    }
    .popover-grid {
      display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 12px;
    }
    .popover-item {
      padding: 13px 15px; border-radius: 16px;
      background: #F8FAFF; border: 1px solid rgba(1, 109, 255, 0.12);
      text-align: left; transition: all 0.18s ease;
      display: flex; flex-direction: column; justify-content: space-between;
      color: #071021; min-width: 0; cursor: pointer;
    }
    .popover-item:hover {
      background: #EDF4FF; border-color: #016DFF; transform: translateY(-2px);
      box-shadow: 0 10px 24px -8px rgba(1, 109, 255, 0.2);
    }
    .popover-item.current {
      background: linear-gradient(135deg, rgba(1, 109, 255, 0.1), rgba(58, 152, 254, 0.08));
      border-color: #016DFF;
    }

    /* 多语言切换下拉组件 */
    .header-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
    .lang-switcher-wrap { position: relative; display: inline-flex; }
    .lang-btn {
      display: inline-flex; align-items: center; gap: 5px;
      padding: 7px 11px; border-radius: var(--radius-pill);
      background: #FFFFFF; border: 1px solid var(--brand-border);
      color: var(--text-main); font-size: 12px; font-weight: 700;
      transition: all 0.18s ease; white-space: nowrap;
    }
    .lang-btn:hover { border-color: var(--brand); color: var(--brand); }
    .lang-dropdown {
      position: absolute; top: calc(100% + 8px); right: 0;
      width: 215px; padding: 8px; border-radius: 16px;
      background: #FFFFFF; border: 1px solid rgba(1, 109, 255, 0.22);
      box-shadow: 0 20px 48px rgba(7, 24, 62, 0.18);
      display: none; flex-direction: column; gap: 2px; z-index: 180;
      max-height: 360px; overflow-y: auto;
    }
    .lang-dropdown.open { display: flex; }
    .lang-opt {
      display: flex; align-items: center; justify-content: space-between;
      padding: 8px 12px; border-radius: 10px; font-size: 12.5px; font-weight: 600;
      color: #1E293B; text-align: left; transition: background 0.15s;
    }
    .lang-opt:hover { background: #F0F6FF; color: #016DFF; }
    .lang-opt.active { background: #016DFF; color: #FFFFFF; }

    /* 胶囊按钮（内容区允许平衡换行，绝不撑破多语言卡片；顶栏按钮保持紧凑） */
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 6px;
      font-weight: 600; border-radius: var(--radius-pill); transition: all 0.2s ease;
      white-space: normal; text-align: center; line-height: 1.32; max-width: 100%;
    }
    .header-actions .btn { white-space: nowrap; flex-shrink: 0; }
    .btn-sm { padding: 8px 15px; font-size: 12.5px; }
    .btn-lg { padding: 13px 24px; font-size: 14.5px; }
    .btn-primary {
      background: linear-gradient(135deg, #016DFF 0%, #1E7DFF 100%);
      color: #FFFFFF !important; box-shadow: 0 10px 24px -6px rgba(1, 109, 255, 0.42);
    }
    .btn-primary:hover { transform: translateY(-1px); box-shadow: 0 14px 28px -6px rgba(1, 109, 255, 0.55); }
    .btn-outline {
      border: 1px solid var(--brand-border); color: var(--brand);
      background: rgba(255, 255, 255, 0.94);
    }
    .btn-outline:hover { background: #EDF4FF; border-color: var(--brand); color: var(--brand-deep); }
    .btn-ghost { color: var(--text-secondary); padding: 8px 11px; font-size: 12.5px; }
    .btn-ghost:hover { color: var(--brand); background: var(--brand-soft); }

    /* 手机与窄屏汉堡按钮及全功能抽屉菜单 */
    .mobile-menu-toggle {
      display: none; width: 38px; height: 38px; border-radius: 11px;
      background: #FFFFFF; border: 1px solid var(--brand-border);
      color: #071021; align-items: center; justify-content: center; font-size: 18px;
      flex-shrink: 0;
    }
    .mobile-drawer {
      display: none;
      background: #FFFFFF;
      border-bottom: 1px solid var(--border-line);
      padding: 16px 20px 22px;
      box-shadow: 0 24px 48px rgba(7, 24, 62, 0.14);
      max-height: calc(100vh - 68px);
      overflow-y: auto;
    }
    .mobile-drawer.open { display: block; }
    .mobile-subnav {
      display: none; overflow-x: auto; gap: 6px; padding: 8px 16px;
      background: rgba(255, 255, 255, 0.92); border-bottom: 1px solid var(--border-line);
      -webkit-overflow-scrolling: touch;
    }
    .mobile-subnav::-webkit-scrollbar { display: none; }

    /* 页面切换动效 */
    .page-animate { animation: fadeSlideUp 0.26s cubic-bezier(0.16, 1, 0.3, 1); }
    @keyframes fadeSlideUp {
      from { opacity: 0; transform: translateY(8px); }
      to { opacity: 1; transform: translateY(0); }
    }

    /* 首屏 WebGL 声波脉冲容器 */
    .hero-section { position: relative; padding: 62px 0 54px; overflow: hidden; }
    .subpage-hero {
      position: relative; padding: 44px 0 38px; overflow: hidden;
      border-bottom: 1px solid var(--border-line);
      background: linear-gradient(180deg, rgba(1, 109, 255, 0.05) 0%, rgba(247, 250, 255, 0.95) 100%);
    }
    #hero-shader-mount { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
    #hero-shader-mount canvas { width: 100%; height: 100%; display: block; }
    .hero-fade-mask {
      position: absolute; inset: 0; z-index: 1; pointer-events: none;
      background: radial-gradient(circle at 50% 34%, rgba(247, 250, 255, 0.08) 0%, rgba(247, 250, 255, 0.94) 80%, #F7FAFF 100%);
    }
    .hero-section > .container, .subpage-hero > .container { position: relative; z-index: 2; }

    .hero-center { text-align: center; max-width: 960px; margin: 0 auto 40px; }
    .eyebrow-pill {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      padding: 6px 16px; border-radius: var(--radius-pill);
      background: rgba(255, 255, 255, 0.92); border: 1px solid var(--brand-border);
      color: var(--brand); font-size: 12.5px; font-weight: 700; margin-bottom: 18px;
      box-shadow: 0 4px 14px rgba(1, 109, 255, 0.08);
      max-width: 100%; flex-wrap: wrap; line-height: 1.45;
    }
    .breadcrumb {
      display: inline-flex; align-items: center; gap: 8px; flex-wrap: wrap;
      font-size: 12.5px; color: var(--text-muted); margin-bottom: 12px;
    }
    .breadcrumb button:hover { color: var(--brand); text-decoration: underline; }

    .hero-h1 {
      font-size: clamp(29px, 4.1vw, 50px); font-weight: 800; line-height: 1.18;
      letter-spacing: -0.02em; margin-bottom: 18px; color: var(--text-main);
    }
    .subpage-h1 {
      font-size: clamp(24px, 3.1vw, 38px); font-weight: 800; line-height: 1.24;
      letter-spacing: -0.015em; margin-bottom: 12px; color: var(--text-main);
    }
    .gradient-headline {
      background: var(--title-grad); -webkit-background-clip: text; background-clip: text; color: transparent;
    }
    .hero-lead { font-size: 15px; color: var(--text-secondary); max-width: 800px; margin: 0 auto 26px; line-height: 1.72; }
    .cta-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
    .split-hero { display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(0, 1.06fr); gap: 32px; align-items: center; }

    /* 通用区块与卡片 */
    .section-band { padding: 60px 0; position: relative; }
    .section-subtle {
      background: var(--bg-subtle);
      border-top: 1px solid var(--border-line); border-bottom: 1px solid var(--border-line);
    }
    .section-kicker {
      font-size: 12px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase;
      color: var(--brand); margin-bottom: 8px;
    }
    .section-h2 { font-size: clamp(22px, 2.7vw, 32px); font-weight: 800; line-height: 1.26; margin-bottom: 12px; color: var(--text-main); }
    .section-desc { font-size: 14.5px; color: var(--text-secondary); max-width: 760px; line-height: 1.72; }

    .pro-card {
      position: relative; background: var(--bg-card);
      backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
      border: 1px solid var(--border-line); border-radius: var(--radius-card);
      padding: 24px; box-shadow: var(--shadow-soft);
      transition: transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
      display: flex; flex-direction: column; justify-content: space-between; overflow: hidden;
      color: var(--text-main); min-width: 0;
    }
    .pro-card:hover {
      transform: translateY(-3px); border-color: var(--border-hover); box-shadow: var(--shadow-hover);
    }
    .spotlight-card::after {
      content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
      background: radial-gradient(440px circle at var(--mx, -500px) var(--my, -500px), rgba(1, 109, 255, 0.09), transparent 45%);
    }
    .badge-soft {
      display: inline-flex; align-items: center; gap: 6px; flex-wrap: wrap;
      padding: 4px 12px; border-radius: var(--radius-pill);
      background: var(--brand-soft); border: 1px solid var(--brand-border);
      color: var(--brand); font-size: 12px; font-weight: 700; line-height: 1.4;
      max-width: 100%;
    }

    /* 高保真产品工作台仿真舱 */
    .cockpit-shell {
      padding: 2px; border-radius: calc(var(--radius-card) + 2px);
      background: linear-gradient(135deg, #016DFF 0%, #3A98FE 48%, rgba(1, 109, 255, 0.16) 100%);
      box-shadow: var(--shadow-cockpit); max-width: 100%; overflow: hidden;
    }
    .cockpit-dark {
      background: var(--cockpit-bg); color: #F8FAFC;
      border-radius: var(--radius-card); padding: 22px; min-width: 0;
    }
    .cockpit-light {
      background: #FFFFFF; color: #071021;
      border-radius: var(--radius-card); overflow: hidden; min-width: 0;
    }
    .ui-window-bar {
      display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap;
      padding: 12px 16px; background: #F0F6FF; border-bottom: 1px solid rgba(1, 109, 255, 0.12);
      font-size: 12px; color: #071021;
    }
    .ui-step-flow {
      display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 8px;
      margin: 14px 0 18px;
    }
    .ui-step-node {
      padding: 9px 6px; border-radius: 13px; text-align: center;
      background: #F7FAFF; border: 1px solid rgba(1, 109, 255, 0.12); font-size: 11px; color: #071021;
      min-width: 0; line-height: 1.35;
    }
    .ui-step-node.active {
      background: linear-gradient(135deg, #016DFF, #2984FF); color: #FFFFFF;
      border-color: #016DFF; box-shadow: 0 6px 16px rgba(1, 109, 255, 0.25);
    }

    /* 企微三栏仿真台 */
    .wecom-mock {
      display: grid; grid-template-columns: minmax(140px, 0.78fr) minmax(0, 1.28fr) minmax(0, 1fr);
      min-height: 300px; font-size: 12px; color: #071021;
    }
    .wecom-col { padding: 14px; border-right: 1px solid #E8F0FE; min-width: 0; }
    .wecom-col:last-child { border-right: none; background: #F9FBFF; }
    .chat-bubble-user {
      background: #F1F5F9; color: #0F172A; padding: 9px 12px;
      border-radius: 12px 12px 12px 2px; margin-bottom: 10px; font-size: 12px;
    }
    .chat-bubble-ai {
      background: #016DFF; color: #FFFFFF; padding: 10px 12px;
      border-radius: 12px 12px 2px 12px; margin-bottom: 10px; font-size: 12px;
    }

    /* 数据表格与结构化矩阵表 (用于 GEO Agent 引擎 / 六阶段确认表) */
    .clean-table-wrap {
      width: 100%; overflow-x: auto; border-radius: 18px;
      border: 1px solid var(--border-line); background: #FFFFFF;
      box-shadow: var(--shadow-soft);
    }
    .clean-table {
      width: 100%; border-collapse: collapse; font-size: 13px; color: #071021; text-align: left;
    }
    .clean-table th {
      background: #F0F6FF; color: #016DFF; font-weight: 800; padding: 13px 16px;
      border-bottom: 1px solid rgba(1, 109, 255, 0.14); font-size: 12.5px;
    }
    .clean-table td {
      padding: 13px 16px; border-bottom: 1px solid #EEF4FF; color: var(--text-secondary);
      vertical-align: top; line-height: 1.58;
    }
    .clean-table tr:last-child td { border-bottom: none; }
    .clean-table td strong { color: #071021; }

    /* CLI 代码块 */
    .cli-box {
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      background: #040B1A; color: #E2E8F0; border: 1px solid rgba(58, 152, 254, 0.28);
      border-radius: 14px; padding: 12px 14px; font-size: 12px; line-height: 1.65;
      overflow-x: auto; direction: ltr; text-align: left;
    }

    /* 五层技术架构堆叠图 */
    .arch-layer {
      background: #FFFFFF; border: 1px solid var(--border-line);
      border-radius: 18px; padding: 18px 20px; margin-bottom: 12px;
      box-shadow: 0 6px 20px rgba(7, 24, 62, 0.04); color: #071021;
    }
    .arch-layer-head {
      display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 6px;
      margin-bottom: 12px; font-size: 13px; font-weight: 800; color: var(--brand);
    }
    .arch-chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
    .arch-chip {
      padding: 7px 13px; border-radius: 10px; background: #F4F8FF;
      border: 1px solid rgba(1, 109, 255, 0.15); font-size: 12px; font-weight: 600; color: #071021;
    }
    .arch-chip small { display: block; font-size: 11px; font-weight: 400; color: var(--text-muted); }

    /* 行业方案切换 Tabs & FAQ 折叠面板 */
    .tab-pill-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
    .tab-pill {
      padding: 10px 18px; border-radius: var(--radius-pill);
      font-size: 13px; font-weight: 700; color: var(--text-secondary);
      background: #FFFFFF; border: 1px solid var(--border-line); transition: all 0.2s; text-align: center;
    }
    .tab-pill:hover { border-color: var(--brand); color: var(--brand); }
    .tab-pill.active {
      background: var(--brand); color: #FFFFFF; border-color: var(--brand);
      box-shadow: 0 8px 20px -4px rgba(1, 109, 255, 0.38);
    }

    .faq-item {
      background: #FFFFFF; border: 1px solid var(--border-line);
      border-radius: 18px; margin-bottom: 12px; overflow: hidden; color: #071021;
    }
    .faq-q {
      width: 100%; padding: 17px 20px; text-align: left;
      display: flex; align-items: center; justify-content: space-between; gap: 12px;
      font-size: 14.5px; font-weight: 700; color: #071021;
    }
    .faq-a {
      padding: 14px 20px 18px; font-size: 13.5px; color: var(--text-secondary);
      line-height: 1.75; border-top: 1px dashed rgba(1, 109, 255, 0.12);
    }

    /* 底部通栏与统一页脚 (显式亮色高对比度锁定) */
    .cta-grand-banner {
      padding: 58px 0; text-align: center; color: #FFFFFF;
      background: radial-gradient(circle at 50% 0%, #0D3C94 0%, #071226 72%);
      border-top: 1px solid rgba(58, 152, 254, 0.24);
    }
    .site-footer {
      background: #050C1B; color: #CBD5E1; padding: 52px 0 42px;
      border-top: 1px solid rgba(58, 152, 254, 0.16); font-size: 13px;
    }
    .footer-grid {
      display: grid; grid-template-columns: minmax(0, 1.55fr) repeat(3, minmax(0, 1fr)); gap: 28px;
      padding-bottom: 32px; border-bottom: 1px solid #152646;
    }
    .footer-col h4 { color: #FFFFFF; font-size: 14px; font-weight: 700; margin-bottom: 14px; }
    .footer-col li { margin-bottom: 10px; }
    .footer-col button, .footer-col a {
      color: #CBD5E1 !important;
      text-align: left;
      font-size: 13px;
      line-height: 1.55;
      display: inline-block;
      transition: color 0.18s ease, transform 0.18s ease;
    }
    .footer-col button:hover, .footer-col a:hover {
      color: #60A5FA !important;
      transform: translateX(2px);
    }

    /* 预约演示模态框 */
    .modal-backdrop {
      position: fixed; inset: 0; z-index: 200;
      background: rgba(5, 11, 24, 0.74); backdrop-filter: blur(8px);
      display: none; align-items: center; justify-content: center; padding: 16px;
      overflow-y: auto;
    }
    .modal-backdrop.open { display: flex; }
    .modal-dialog {
      background: #FFFFFF; color: #071021; width: 100%; max-width: 700px;
      border-radius: 24px; overflow: hidden; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
      box-shadow: 0 32px 72px rgba(0, 0, 0, 0.45); max-height: calc(100vh - 32px); overflow-y: auto;
    }
    .modal-side {
      background: linear-gradient(160deg, #0044B8 0%, #016DFF 58%, #07152E 100%);
      color: #FFFFFF; padding: 28px; display: flex; flex-direction: column; justify-content: space-between;
    }
    .modal-body { padding: 28px; position: relative; color: #071021; }
    .form-field { margin-bottom: 12px; }
    .form-field label { display: block; font-size: 12px; font-weight: 700; color: #334155; margin-bottom: 5px; }
    .form-field input, .form-field select {
      width: 100%; padding: 10px 14px; border: 1px solid #CBD5E1; border-radius: 12px;
      font-size: 13px; color: #0F172A; background: #F8FAFC;
    }
    .form-field input:focus, .form-field select:focus { border-color: #016DFF; background: #FFFFFF; }

    /* ==================== 增长转化引擎：交互测算器、试听舱、扫描器、白皮书与着陆页 ==================== */
    .growth-calc-card {
      background: linear-gradient(145deg, #FFFFFF 0%, #F4F8FF 100%);
      border: 1.5px solid rgba(1, 109, 255, 0.24);
      border-radius: 24px;
      padding: 28px;
      box-shadow: 0 20px 48px -18px rgba(1, 109, 255, 0.14);
      color: #071021;
    }
    .range-slider {
      -webkit-appearance: none;
      appearance: none;
      width: 100%;
      height: 8px;
      border-radius: 999px;
      background: linear-gradient(90deg, #016DFF 0%, #60A5FA 100%);
      outline: none;
      margin: 10px 0 6px;
      cursor: pointer;
    }
    .range-slider::-webkit-slider-thumb {
      -webkit-appearance: none;
      appearance: none;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: #FFFFFF;
      border: 3px solid #016DFF;
      box-shadow: 0 4px 12px rgba(1, 109, 255, 0.35);
      cursor: pointer;
    }
    .calc-kpi-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      margin-bottom: 18px;
    }
    .calc-kpi-box {
      padding: 16px;
      border-radius: 16px;
      background: #08152E;
      border: 1px solid rgba(58, 152, 254, 0.28);
      color: #FFFFFF;
    }
    .scenario-tab-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 16px;
    }
    .scenario-tab-btn {
      padding: 8px 15px;
      border-radius: 999px;
      font-size: 12.5px;
      font-weight: 700;
      background: rgba(255, 255, 255, 0.07);
      border: 1px solid rgba(58, 152, 254, 0.26);
      color: #CBD5E1;
      transition: all 0.2s;
      cursor: pointer;
    }
    .scenario-tab-btn.active, .scenario-tab-btn:hover {
      background: #016DFF;
      border-color: #38BDF8;
      color: #FFFFFF;
    }
    .transcript-turn {
      padding: 11px 14px;
      border-radius: 14px;
      font-size: 13px;
      line-height: 1.62;
      transition: all 0.25s ease;
      border: 1px solid transparent;
    }
    .transcript-turn.turn-user {
      background: rgba(255, 255, 255, 0.06);
      color: #E2E8F0;
    }
    .transcript-turn.turn-ai {
      background: rgba(1, 109, 255, 0.24);
      border-color: rgba(58, 152, 254, 0.38);
      color: #FFFFFF;
    }
    .transcript-turn.active-turn {
      border-color: #38BDF8;
      box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.28);
      transform: translateX(3px);
    }
    .brand-scan-shell {
      background: linear-gradient(135deg, #07132B 0%, #0B2559 60%, #016DFF 140%);
      border: 1px solid rgba(58, 152, 254, 0.36);
      border-radius: 24px;
      padding: 26px 28px;
      color: #FFFFFF;
      box-shadow: 0 22px 50px -18px rgba(7, 19, 43, 0.42);
    }
    .scan-input-row {
      display: grid;
      grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr) auto;
      gap: 10px;
      margin-top: 16px;
    }
    .scan-input {
      width: 100%;
      padding: 12px 15px;
      border-radius: 12px;
      border: 1px solid rgba(147, 197, 253, 0.34);
      background: rgba(255, 255, 255, 0.96);
      color: #071021;
      font-size: 13.5px;
      font-weight: 600;
    }
    .lp-inline-form-card {
      background: #FFFFFF;
      border: 2px solid rgba(1, 109, 255, 0.26);
      border-radius: 24px;
      padding: 26px;
      box-shadow: 0 24px 56px -16px rgba(7, 24, 62, 0.16);
      color: #071021;
    }
    .whitepaper-unlock-box {
      padding: 14px 16px;
      border-radius: 16px;
      background: linear-gradient(135deg, #EDF4FF 0%, #DBEAFE 100%);
      border: 1.5px solid #60A5FA;
      text-align: left;
      margin-bottom: 16px;
    }
    .quick-conv-dock {
      position: fixed;
      left: 14px;
      bottom: 18px;
      z-index: 95;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .quick-conv-btn {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(7, 19, 43, 0.88);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(58, 152, 254, 0.42);
      color: #FFFFFF;
      font-size: 11.5px;
      font-weight: 700;
      box-shadow: 0 8px 20px rgba(7, 19, 43, 0.20);
      transition: all 0.2s ease;
      cursor: pointer;
    }
    @media (max-width: 1360px) {
      .quick-conv-dock { display: none !important; }
    }
    .quick-conv-btn:hover {
      background: #016DFF;
      border-color: #93C5FD;
      transform: translateY(-2px);
    }
    .legal-prose h2 {
      font-size: 19px;
      font-weight: 800;
      color: #071021;
      margin: 24px 0 10px;
    }
    .legal-prose p, .legal-prose li {
      font-size: 13.5px;
      color: var(--text-secondary);
      line-height: 1.8;
      margin-bottom: 10px;
    }

    /* ==================== 平板端与手机端全尺寸防挤压适配 ==================== */
    @media (max-width: 1180px) {
      .nav-links { display: none !important; }
      .mobile-menu-toggle { display: inline-flex; }
      .mobile-subnav { display: flex; }
      .grid-5, .grid-6 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
      .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .split-hero { grid-template-columns: minmax(0, 1fr) !important; gap: 26px; }
      .wecom-mock { grid-template-columns: minmax(0, 1fr) !important; }
      .wecom-col { border-right: none; border-bottom: 1px solid #E8F0FE; }
      .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    }
    @media (max-width: 960px) {
      .quick-conv-dock { display: none !important; }
      .scan-input-row { grid-template-columns: minmax(0, 1fr); }
    }
    @media (max-width: 820px) {
      .grid-3, .grid-5, .grid-6, .calc-kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    }
    @media (max-width: 720px) {
      .container { padding: 0 16px; }
      .header-row { min-height: 60px; gap: 6px; }
      .hide-xs { display: none !important; }
      .slash-divider { display: none; }
      .subbrand-switcher { padding: 5px 9px; font-size: 11.5px; max-width: 140px; }
      .brand-en { font-size: 15px; }
      .brand-cn { display: none; }
      .hero-section { padding: 34px 0 32px; }
      .subpage-hero { padding: 28px 0 26px; }
      .section-band { padding: 42px 0; }
      .grid-2, .grid-3, .grid-4, .grid-5, .grid-6, .popover-grid, .footer-grid, .calc-kpi-grid { grid-template-columns: minmax(0, 1fr); }
      .growth-calc-card, .brand-scan-shell, .lp-inline-form-card { padding: 20px 16px; border-radius: 20px; }
      .ui-step-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .pro-card { padding: 20px; border-radius: 20px; }
      .cockpit-dark { padding: 16px; }
      .cta-row .btn-lg { width: 100%; }
      
      .modal-dialog { grid-template-columns: minmax(0, 1fr); }
      .modal-side { display: none !important; }
      .modal-body { padding: 22px 18px; }
      .lang-btn { padding: 6px 9px; font-size: 11.5px; }
    }
  
    /* Production Dynamic Form & Status Enhancements */
    .form-error-banner {
      display: none;
      padding: 9px 12px;
      border-radius: 10px;
      background: #FEF2F2;
      border: 1px solid #FECACA;
      color: #DC2626;
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 12px;
    }
    .form-error-banner.show { display: block; }
    .ticket-ref-pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 14px;
      border-radius: 999px;
      background: #EDF4FF;
      border: 1px solid rgba(1, 109, 255, 0.24);
      color: #016DFF;
      font-size: 12px;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .btn[disabled] {
      opacity: 0.68;
      cursor: wait;
    }
    .hover-matrix-anchor:not(.open) .matrix-popover {
      display: none;
    }
    @media (max-width: 960px) {
      .matrix-popover,
      .matrix-popover.align-center,
      .hover-matrix-anchor.open .matrix-popover,
      .hover-matrix-anchor.open .matrix-popover.align-center {
        position: fixed;
        top: 72px;
        left: 16px;
        right: 16px;
        width: auto;
        max-width: none;
        max-height: calc(100vh - 92px);
        overflow-y: auto;
        transform: none;
      }
      .popover-grid {
        grid-template-columns: 1fr;
      }
    }