:root {
      --color-primary:        #0faeff;
      --color-primary-light:  #5ed4ff;
      --color-primary-dark:   #0090d9;
      --color-primary-deeper: #0077be;
      --color-primary-bg:     #e8f7ff;

      --color-orange:         #ff7849;
      --color-orange-dark:    #ff5a2a;
      --color-purple:         #7c5cfc;
      --color-purple-dark:    #5b3cf6;
      --color-amber:          #ffa940;
      --color-amber-dark:     #ff8a00;
      --color-emerald:        #10b981;

      --color-text-primary:   #1a1a2e;
      --color-text-secondary: #444466;
      --color-text-muted:     #888899;
      --color-text-disabled:  #bbbbcc;

      --color-border:         rgba(15,174,255,0.08);
      --color-border-strong:  rgba(15,174,255,0.16);
      --color-bg-page:        #f8fbff;
      --color-bg-card:        #ffffff;
      --color-bg-surface:     #f2f8ff;

      --space-1: 4px;  --space-2: 8px;   --space-3: 12px;
      --space-4: 16px; --space-5: 20px;  --space-6: 24px;  --space-8: 32px;
      --space-10: 40px; --space-12: 48px; --space-16: 64px; --space-20: 80px;

      --radius-sm: 8px;   --radius-md: 12px;
      --radius-lg: 16px;  --radius-xl: 20px;  --radius-2xl: 24px; --radius-full: 999px;

      --shadow-card:    0 2px 12px rgba(0, 60, 120, 0.05);
      --shadow-hover:   0 12px 32px rgba(0, 100, 180, 0.10);
      --shadow-feature: 0 6px 20px rgba(15, 174, 255, 0.22), inset 0 1px 0 rgba(255,255,255,0.2);
      --shadow-glass:   0 8px 32px rgba(0, 100, 180, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.5);
      --shadow-glow:    0 16px 48px rgba(15, 174, 255, 0.30);

      --font-family: 'PingFang SC', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    }

    /* ========== Hero Section (重做) ========== */
    .hero {
      position: relative;
      padding: 60px 0 120px;
      background:
        radial-gradient(ellipse 900px 600px at 15% 10%, rgba(15, 174, 255, 0.18), transparent 60%),
        radial-gradient(ellipse 700px 500px at 95% 30%, rgba(124, 92, 252, 0.10), transparent 60%),
        radial-gradient(ellipse 800px 400px at 50% 100%, rgba(15, 174, 255, 0.06), transparent 70%),
        linear-gradient(180deg, #eaf4ff 0%, #f2f8ff 40%, var(--color-bg-page) 100%);
      overflow: hidden;
    }

    /* 装饰层 1：网格 */
    .hero::before {
      content: ''; position: absolute; inset: 0;
      background-image:
        linear-gradient(rgba(15,174,255,0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,174,255,0.06) 1px, transparent 1px);
      background-size: 56px 56px;
      mask-image: radial-gradient(ellipse 900px 700px at 50% 30%, #000 30%, transparent 80%);
      -webkit-mask-image: radial-gradient(ellipse 900px 700px at 50% 30%, #000 30%, transparent 80%);
      pointer-events: none;
    }

    /* 装饰层 2：噪点纹理 */
    .hero::after {
      content: ''; position: absolute; inset: 0;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.5 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.3'/%3E%3C/svg%3E");
      opacity: 0.04;
      pointer-events: none;
      mix-blend-mode: overlay;
    }

    /* 装饰层 3：浮动光斑 */
    .hero-blob {
      position: absolute;
      border-radius: 50%;
      filter: blur(80px);
      pointer-events: none;
      z-index: 0;
    }
    .hero-blob.b1 { width: 320px; height: 320px; top: -60px; left: -80px;
      background: radial-gradient(circle, rgba(15,174,255,0.45), transparent 70%);
      animation: blobDrift 18s ease-in-out infinite;
    }
    .hero-blob.b2 { width: 280px; height: 280px; top: 40%; right: -100px;
      background: radial-gradient(circle, rgba(124, 92, 252, 0.35), transparent 70%);
      animation: blobDrift 22s ease-in-out infinite reverse;
    }
    .hero-blob.b3 { width: 220px; height: 220px; bottom: 0; left: 40%;
      background: radial-gradient(circle, rgba(255, 120, 73, 0.22), transparent 70%);
      animation: blobDrift 26s ease-in-out infinite;
    }
    @keyframes blobDrift {
      0%,100% { transform: translate(0, 0) scale(1); }
      33% { transform: translate(40px, -30px) scale(1.05); }
      66% { transform: translate(-30px, 40px) scale(0.95); }
    }

    /* 装饰层 4：粒子 - 支持 CSS 变量独立配色/透明度 */
    .hero-particle {
      position: absolute;
      width: var(--p-size, 6px);
      height: var(--p-size, 6px);
      background: var(--p-color, var(--color-primary));
      border-radius: 50%;
      box-shadow: 0 0 16px var(--p-color, var(--color-primary));
      opacity: 0;
      z-index: 0;
      animation: particleFloat var(--p-dur, 8s) linear infinite;
    }
    @keyframes particleFloat {
      0%   { transform: translateY(0) scale(0.4); opacity: 0; }
      8%   { opacity: var(--p-opacity, 0.6); }
      85%  { opacity: var(--p-opacity, 0.6); }
      100% { transform: translateY(-900px) scale(1.1); opacity: 0; }
    }

    .hero-inner {
      display: grid;
      grid-template-columns: 1.05fr 1fr;
      gap: 72px;
      align-items: center;
      position: relative;
      z-index: 2;
    }

    .hero-eyebrow {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 7px 16px;
      background: rgba(255, 255, 255, 0.7);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: none;
      border-radius: var(--radius-full);
      font-size: 12px; font-weight: 700;
      color: var(--color-primary-deeper);
      margin-bottom: 24px;
      box-shadow: 0 4px 16px rgba(15, 174, 255, 0.08);
    }
    .hero-eyebrow .dot {
      width: 6px; height: 6px; border-radius: 50%;
      background: var(--color-primary);
      box-shadow: 0 0 0 4px rgba(15, 174, 255, 0.2);
      animation: pulseDot 2s ease-in-out infinite;
    }
    .hero-eyebrow .sep { color: var(--color-text-muted); font-weight: 400; }
    @keyframes pulseDot { 0%,100% { box-shadow: 0 0 0 4px rgba(15, 174, 255, 0.2); } 50% { box-shadow: 0 0 0 8px rgba(15, 174, 255, 0.05); } }

    .hero h1 {
      font-size: 56px;
      font-weight: 800;
      line-height: 1.1;
      letter-spacing: -0.025em;
      color: var(--color-text-primary);
      margin-bottom: 24px;
    }
    .hero h1 .accent {
      position: relative;
      background: linear-gradient(135deg, #0faeff 0%, #5ed4ff 40%, #7c5cfc 100%);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .hero h1 .accent::after {
      content: '';
      position: absolute;
      left: 0; right: 0; bottom: 4px;
      height: 8px;
      background: linear-gradient(90deg, rgba(15, 174, 255, 0.18), transparent);
      border-radius: 4px;
      z-index: -1;
    }
    .hero-sub {
      font-size: 17px;
      color: var(--color-text-secondary);
      line-height: 1.75;
      margin-bottom: 36px;
      max-width: 540px;
    }
    .hero-sub strong { color: var(--color-primary-deeper); font-weight: 700; }

    .hero-actions { display: flex; gap: 12px; margin-bottom: 40px; flex-wrap: wrap; }
    .hero-actions .btn svg { width: 16px; height: 16px; }

    .hero-trust {
      display: flex; align-items: center; gap: 24px;
      padding: 16px 20px;
      background: rgba(255, 255, 255, 0.5);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: none;
      border-radius: var(--radius-lg);
      max-width: 540px;
    }
    .ht-avatars { display: flex; }
    .ht-avatars .av {
      width: 36px; height: 36px;
      border-radius: 50%;
      border: none;
      margin-left: -10px;
      display: flex; align-items: center; justify-content: center;
      font-size: 13px; font-weight: 800;
      color: #fff;
    }
    .ht-avatars .av:first-child { margin-left: 0; }
    .ht-avatars .av:nth-child(1) { background: linear-gradient(135deg, #0faeff, #0090d9); }
    .ht-avatars .av:nth-child(2) { background: linear-gradient(135deg, #ff7849, #ff5a2a); }
    .ht-avatars .av:nth-child(3) { background: linear-gradient(135deg, #7c5cfc, #5b3cf6); }
    .ht-avatars .av:nth-child(4) { background: linear-gradient(135deg, #10b981, #059669); }
    .ht-avatars .av.more { background: #fff; color: var(--color-primary-deeper); font-size: 12px; }
    .ht-text { flex: 1; }
    .ht-text .l1 { font-size: 13px; color: var(--color-text-secondary); line-height: 1.5; }
    .ht-text .l1 strong { color: var(--color-text-primary); font-weight: 700; }
    .ht-stars { display: flex; gap: 2px; margin-top: 2px; }
    .ht-stars svg { width: 12px; height: 12px; fill: #ffa940; }

    /* ========== Hero Visual: 精致工作台 Mockup ========== */
    .hero-visual {
      position: relative;
      height: 580px;
    }

    /* 主手机 mockup */
    .hv-phone {
      position: absolute;
      left: 50%; top: 50%;
      transform: translate(-50%, -50%);
      width: 260px; height: 520px;
      background: linear-gradient(160deg, #1a1a2e 0%, #0a0a1a 100%);
      border-radius: 38px;
      padding: 10px;
      box-shadow:
        0 0 0 1.5px rgba(15, 174, 255, 0.18),
        0 30px 60px -10px rgba(0, 30, 80, 0.4),
        0 50px 100px -20px rgba(15, 174, 255, 0.3);
      z-index: 3;
    }
    .hv-phone::before {
      /* 刘海 */
      content: '';
      position: absolute;
      top: 14px; left: 50%;
      transform: translateX(-50%);
      width: 80px; height: 22px;
      background: #0a0a1a;
      border-radius: 0 0 14px 14px;
      z-index: 2;
    }
    .hv-phone-inner {
      width: 100%; height: 100%;
      background: #f2f8ff;
      border-radius: 28px;
      overflow: hidden;
      position: relative;
    }

    .hv-phone-status {
      height: 36px;
      display: flex; align-items: center; justify-content: space-between;
      padding: 14px 20px 0;
      font-size: 11px; font-weight: 700; color: var(--color-text-primary);
    }
    .hv-phone-status .right { display: flex; gap: 4px; align-items: center; }
    .hv-phone-status svg { width: 12px; height: 12px; }

    .hv-phone-content {
      padding: 0 10px 10px;
      display: flex; flex-direction: column; gap: 8px;
    }

    /* 模拟工作台 Banner */
    .pv-banner {
      position: relative;
      padding: 12px;
      background: linear-gradient(135deg, #0faeff 0%, #5ed4ff 60%, #7c5cfc 100%);
      border-radius: 14px;
      color: #fff;
      overflow: hidden;
      box-shadow: 0 6px 16px rgba(15, 174, 255, 0.25);
    }
    .pv-banner::before {
      content: '';
      position: absolute;
      right: -20px; top: -20px;
      width: 80px; height: 80px;
      background: radial-gradient(circle, rgba(255,255,255,0.3), transparent 70%);
      border-radius: 50%;
    }
    .pv-banner::after {
      content: '';
      position: absolute;
      left: 0; right: 0; bottom: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    }
    .pv-banner-greet {
      font-size: 10px;
      opacity: 0.95;
      position: relative;
    }
    .pv-banner-title {
      font-size: 14px;
      font-weight: 800;
      margin-top: 2px;
      position: relative;
    }
    .pv-banner-stats {
      display: flex;
      gap: 8px;
      margin-top: 8px;
      position: relative;
    }
    .pv-bs {
      flex: 1;
      padding: 6px 8px;
      background: rgba(255, 255, 255, 0.22);
      border-radius: 6px;
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
    }
    .pv-bs .n { font-size: 13px; font-weight: 800; line-height: 1; }
    .pv-bs .l { font-size: 8px; opacity: 0.9; margin-top: 2px; }

    /* 模拟工作台功能网格 */
    .pv-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 6px;
      padding: 8px 6px;
      background: #fff;
      border-radius: 12px;
    }
    .pv-grid-item {
      display: flex; flex-direction: column; align-items: center; gap: 3px;
      padding: 4px 0;
    }
    .pv-grid-item .gi {
      width: 28px; height: 28px;
      border-radius: 8px;
      display: flex; align-items: center; justify-content: center;
    }
    .pv-grid-item .gi svg { width: 14px; height: 14px; stroke-width: 2.2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
    .pv-grid-item .gl { font-size: 8px; color: var(--color-text-secondary); }
    .pv-grid-item:nth-child(1) .gi { background: rgba(15, 174, 255, 0.12); }
    .pv-grid-item:nth-child(1) .gi svg { stroke: #0faeff; }
    .pv-grid-item:nth-child(2) .gi { background: rgba(255, 120, 73, 0.12); }
    .pv-grid-item:nth-child(2) .gi svg { stroke: #ff7849; }
    .pv-grid-item:nth-child(3) .gi { background: rgba(124, 92, 252, 0.12); }
    .pv-grid-item:nth-child(3) .gi svg { stroke: #7c5cfc; }
    .pv-grid-item:nth-child(4) .gi { background: rgba(16, 185, 129, 0.12); }
    .pv-grid-item:nth-child(4) .gi svg { stroke: #10b981; }

    /* 任务列表 */
    .pv-section-title {
      display: flex; align-items: center; justify-content: space-between;
      padding: 4px 4px 0;
    }
    .pv-section-title .t { font-size: 11px; font-weight: 700; color: var(--color-text-primary); }
    .pv-section-title .m { font-size: 9px; color: var(--color-text-muted); }

    .pv-list { display: flex; flex-direction: column; gap: 6px; }
    .pv-item {
      display: flex; align-items: center; gap: 8px;
      padding: 8px 10px;
      background: #fff;
      border-radius: 10px;
      box-shadow: 0 1px 4px rgba(0, 60, 120, 0.04);
    }
    .pv-icon {
      width: 26px; height: 26px; border-radius: 7px;
      display: flex; align-items: center; justify-content: center;
      flex-shrink: 0;
    }
    .pv-icon svg { width: 14px; height: 14px; stroke-width: 2.2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
    .pv-item:nth-child(1) .pv-icon { background: rgba(255, 120, 73, 0.12); }
    .pv-item:nth-child(1) .pv-icon svg { stroke: #ff7849; }
    .pv-item:nth-child(2) .pv-icon { background: rgba(15, 174, 255, 0.12); }
    .pv-item:nth-child(2) .pv-icon svg { stroke: #0faeff; }
    .pv-item:nth-child(3) .pv-icon { background: rgba(16, 185, 129, 0.12); }
    .pv-item:nth-child(3) .pv-icon svg { stroke: #10b981; }
    .pv-item-text { flex: 1; min-width: 0; }
    .pv-item-t { font-size: 10px; font-weight: 600; color: var(--color-text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .pv-item-s { font-size: 8px; color: var(--color-text-muted); margin-top: 1px; }
    .pv-item-status {
      font-size: 8px;
      font-weight: 700;
      padding: 2px 6px;
      border-radius: 4px;
    }
    .pv-item:nth-child(1) .pv-item-status { background: rgba(255, 73, 73, 0.1); color: #ff4949; }
    .pv-item:nth-child(2) .pv-item-status { background: rgba(15, 174, 255, 0.1); color: #0faeff; }
    .pv-item:nth-child(3) .pv-item-status { background: rgba(16, 185, 129, 0.1); color: #10b981; }

    /* 浮动数据卡（4 个，对角分布） */
    .hv-float {
      position: absolute;
      background: #fff;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-hover);
      z-index: 4;
    }

    .hv-float-1 {
      top: 30px; right: 0;
      padding: 14px 18px;
      display: flex; align-items: center; gap: 12px;
      animation: floatA 5s ease-in-out infinite;
    }
    @keyframes floatA { 0%,100%{ transform: translateY(0) rotate(0); } 50%{ transform: translateY(-8px) rotate(-0.5deg); } }

    .hv-float-2 {
      top: 180px; left: -10px;
      padding: 12px 16px;
      display: flex; flex-direction: column; gap: 6px;
      animation: floatB 6s ease-in-out infinite;
    }
    @keyframes floatB { 0%,100%{ transform: translateY(0) rotate(0); } 50%{ transform: translateY(-6px) rotate(0.5deg); } }

    .hv-float-3 {
      bottom: 80px; right: -20px;
      padding: 12px 16px;
      display: flex; align-items: center; gap: 10px;
      animation: floatA 7s ease-in-out infinite;
    }

    .hv-float-4 {
      bottom: 20px; left: 10px;
      padding: 10px 14px;
      display: flex; align-items: center; gap: 8px;
      animation: floatB 5.5s ease-in-out infinite;
    }

    .hv-icon {
      width: 36px; height: 36px;
      border-radius: 10px;
      display: flex; align-items: center; justify-content: center;
      flex-shrink: 0;
    }
    .hv-icon.b { background: linear-gradient(135deg, rgba(15, 174, 255, 0.15), rgba(15, 174, 255, 0.05)); }
    .hv-icon.b svg { stroke: var(--color-primary); }
    .hv-icon.o { background: linear-gradient(135deg, rgba(255, 120, 73, 0.15), rgba(255, 120, 73, 0.05)); }
    .hv-icon.o svg { stroke: var(--color-orange); }
    .hv-icon.p { background: linear-gradient(135deg, rgba(124, 92, 252, 0.15), rgba(124, 92, 252, 0.05)); }
    .hv-icon.p svg { stroke: var(--color-purple); }
    .hv-icon.g { background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(16, 185, 129, 0.05)); }
    .hv-icon.g svg { stroke: var(--color-emerald); }
    .hv-icon svg { width: 18px; height: 18px; stroke-width: 2.2; fill: none; stroke-linecap: round; stroke-linejoin: round; }

    .hv-float-text .t { font-size: 10px; color: var(--color-text-muted); font-weight: 600; }
    .hv-float-text .n { font-size: 18px; font-weight: 800; color: var(--color-text-primary); letter-spacing: -0.02em; line-height: 1.1; }
    .hv-float-text .n small { font-size: 11px; color: var(--color-text-muted); font-weight: 600; margin-left: 2px; }

    /* 实时在线脉冲 */
    .live-dot {
      display: inline-block;
      width: 6px; height: 6px;
      background: #10b981;
      border-radius: 50%;
      box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6);
      animation: livePulse 1.6s ease-out infinite;
    }
    @keyframes livePulse {
      0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6); }
      100% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
    }

    /* 浮动卡 2 内部：评分 */
    .hf2-row { display: flex; align-items: center; gap: 8px; }
    .hf2-num { font-size: 22px; font-weight: 800; color: var(--color-text-primary); letter-spacing: -0.02em; }
    .hf2-stars { display: flex; gap: 1px; }
    .hf2-stars svg { width: 10px; height: 10px; fill: #ffa940; }
    .hf2-label { font-size: 10px; color: var(--color-text-muted); }

    /* 浮动卡 3 内部：进度 */
    .hf3-bar { width: 90px; height: 6px; background: #edf2f7; border-radius: 6px; overflow: hidden; }
    .hf3-fill { height: 100%; background: linear-gradient(90deg, #0faeff, #5ed4ff); border-radius: 6px; width: 78%; }

    /* 浮动卡 4 内部：扫码 */
    .hf4 { display: flex; align-items: center; gap: 8px; }
    .hf4 .qr { width: 18px; height: 18px; }
    .hf4 .ti { font-size: 11px; font-weight: 700; color: var(--color-text-primary); }
    .hf4 .te { font-size: 9px; color: var(--color-text-muted); }

    /* ========== Logo Strip (升级：行业图标 + 真实 Logo 卡片) ========== */
    .logo-strip {
      position: relative;
      padding: 56px 0 64px;
      background: linear-gradient(180deg, #ffffff 0%, #f5fbff 100%);
      overflow: hidden;
    }
    .logo-strip::before {
      content: '';
      position: absolute; inset: 0;
      background:
        radial-gradient(circle at 20% 50%, rgba(15, 174, 255, 0.06) 0%, transparent 40%),
        radial-gradient(circle at 80% 50%, rgba(124, 92, 252, 0.05) 0%, transparent 40%);
      pointer-events: none;
    }
    .logo-strip-label {
      text-align: center;
      font-size: 13px; font-weight: 600; color: var(--color-text-muted);
      margin-bottom: 32px;
      letter-spacing: 0.08em;
    }
    .logo-strip-label::before,
    .logo-strip-label::after {
      content: '';
      display: inline-block;
      width: 32px; height: 1px;
      background: linear-gradient(90deg, transparent, var(--color-border-strong), transparent);
      vertical-align: middle;
      margin: 0 14px;
    }
    .logo-strip-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
    }
    .ls-logo {
      display: flex; flex-direction: column; align-items: center;
      gap: 8px;
      padding: 20px 12px 16px;
      background: #ffffff;
      border-radius: var(--radius-md);
      cursor: default;
      transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
      opacity: 0; transform: translateY(12px);
      animation: lsFadeIn 0.6s ease-out forwards;
    }
    .ls-icon { width: 40px; height: 40px; border-radius: var(--radius-md); overflow: hidden; }
    .ls-logo:hover .ls-icon {transform: scale(1.1) rotate(-6deg); }
    .ls-logo::before {
      content: '';
      position: absolute; inset: 0;
      background: linear-gradient(135deg, rgba(15, 174, 255, 0.0) 0%, rgba(15, 174, 255, 0.04) 100%);
      opacity: 0;
      transition: opacity 0.35s;
    }
    .ls-logo:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 28px rgba(15, 174, 255, 0.12);
    }
    .ls-logo:hover::before { opacity: 1; }
    .ls-logo:nth-child(1) { animation-delay: 0.05s; }
    .ls-logo:nth-child(2) { animation-delay: 0.12s; }
    .ls-logo:nth-child(3) { animation-delay: 0.19s; }
    .ls-logo:nth-child(4) { animation-delay: 0.26s; }
    .ls-logo:nth-child(5) { animation-delay: 0.33s; }
    .ls-logo:nth-child(6) { animation-delay: 0.40s; }
    .ls-name {
      font-size: 13px; font-weight: 700;
      color: var(--color-text-secondary);
      letter-spacing: 0.01em;
      text-align: center;
      line-height: 1.3;
      transition: color 0.3s;
    }
    .ls-logo:hover .ls-name { color: var(--color-text-primary); }
    .ls-tag {
      font-size: 10px; font-weight: 500;
      color: var(--color-text-muted);
      letter-spacing: 0.06em;
      text-transform: uppercase;
    }
    @keyframes lsFadeIn {
      to { opacity: 1; transform: translateY(0); }
    }

    @media (max-width: 900px) {
      .logo-strip-grid { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 540px) {
      .logo-strip-grid { grid-template-columns: repeat(2, 1fr); }
      .logo-strip-label::before, .logo-strip-label::after { width: 18px; margin: 0 8px; }
    }

    /* ========== Section Common ========== */
    section { padding: 100px 0; }
    .section-head { text-align: center; max-width: 720px; margin: 0 auto 64px; }
    .section-eyebrow {
      display: inline-block;
      font-size: 13px; font-weight: 700;
      color: var(--color-primary);
      letter-spacing: 0.08em;
      text-transform: uppercase;
      margin-bottom: 12px;
    }
    .section-title {
      font-size: 38px; font-weight: 800;
      line-height: 1.2; letter-spacing: -0.02em;
      color: var(--color-text-primary);
      margin-bottom: 16px;
    }
    .section-sub {
      font-size: 16px; color: var(--color-text-secondary);
      line-height: 1.7;
    }

    /* ========== Feature Cards (4 大卖点 - 统一精致版) ========== */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .feature-card {
      position: relative;
      padding: 36px 28px 28px;
      background: #fff;
      border-radius: var(--radius-2xl);
      box-shadow: 0 4px 20px rgba(0, 60, 120, 0.06);
      transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
      overflow: hidden;
      isolation: isolate;
      display: flex; flex-direction: column;
    }
    /* 多层背景：渐变 + 径向光晕 + 网格纹理 */
    .feature-card::before {
      content: ''; position: absolute; inset: 0;
      background:
        linear-gradient(135deg, rgba(15, 174, 255, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 100% 0%, rgba(15, 174, 255, 0.10) 0%, transparent 50%);
      opacity: 0.6;
      transition: opacity 0.5s;
      z-index: -2;
    }
    .feature-card::after {
      content: ''; position: absolute; inset: 0;
      background-image:
        linear-gradient(rgba(15, 174, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15, 174, 255, 0.05) 1px, transparent 1px);
      background-size: 24px 24px;
      mask-image: radial-gradient(circle at top right, black 0%, transparent 70%);
      -webkit-mask-image: radial-gradient(circle at top right, black 0%, transparent 70%);
      opacity: 0.5;
      z-index: -1;
      transition: opacity 0.5s;
    }
    /* 右上角超大水印数字 */
    .fc-watermark {
      position: absolute;
      top: -16px; right: -8px;
      font-size: 120px;
      font-weight: 900;
      line-height: 1;
      color: var(--color-primary);
      opacity: 0.06;
      letter-spacing: -0.05em;
      transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
      pointer-events: none;
      z-index: -1;
    }
    .feature-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 20px 40px rgba(15, 174, 255, 0.15);
    }
    .feature-card:hover::before { opacity: 1; }
    .feature-card:hover::after { opacity: 1; }
    .feature-card:hover .fc-watermark {
      opacity: 0.12;
      transform: translate(-4px, 4px) scale(1.05);
    }
    .feature-card:hover .fc-icon-wrap {
      transform: scale(1.06) rotate(-3deg);
    }
    .feature-card:hover .fc-icon-wrap .icon-bg {
      transform: scale(1.5);
      opacity: 0;
    }
    .fc-num {
      display: inline-block;
      font-size: 12px; font-weight: 800;
      color: var(--color-primary);
      letter-spacing: 0.15em;
      padding: 4px 12px;
      background: rgba(15, 174, 255, 0.08);
      border-radius: var(--radius-full);
      margin-bottom: 20px;
      position: relative;
      z-index: 1;
      align-self: flex-start;
    }
    /* 统一精致图标区 */
    .fc-icon-wrap {
      width: 80px; height: 80px;
      margin-bottom: 22px;
      position: relative;
      z-index: 1;
      transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .icon-bg {
      position: absolute; inset: 0;
      border-radius: 20px;
      background: linear-gradient(145deg, #e8f7ff 0%, #d4f0ff 50%, #c0e8ff 100%);
      box-shadow:
        0 8px 24px rgba(15, 174, 255, 0.18),
        inset 0 -2px 8px rgba(15, 174, 255, 0.08),
        inset 0 2px 8px rgba(255,255,255,0.9);
      transition: all 0.6s ease-out;
      z-index: 0;
    }
    .icon-fg {
      position: absolute; inset: 4px;
      border-radius: 17px;
      display: flex; align-items: center; justify-content: center;
      overflow: visible;
    }
    .icon-fg svg {
      width: 38px; height: 38px;
      stroke: #0077be;
      fill: none;
      stroke-width: 1.75;
      stroke-linecap: round; stroke-linejoin: round;
      filter: drop-shadow(0 2px 4px rgba(0,119,190,0.15));
    }
    .fc-title {
      font-size: 19px; font-weight: 800; color: var(--color-text-primary);
      margin-bottom: 9px;
      letter-spacing: -0.01em;
      position: relative; z-index: 1;
    }
    .fc-desc {
      font-size: 13px; color: var(--color-text-secondary);
      line-height: 1.65;
      position: relative; z-index: 1;
      flex: 1;
    }
    .fc-stat {
      display: flex; align-items: baseline; gap: 4px;
      margin-top: 14px;
      padding-top: 14px;
      position: relative; z-index: 1;
    }
    .fc-stat-num {
      font-size: 22px; font-weight: 800;
      color: var(--color-primary);
      letter-spacing: -0.02em;
      font-variant-numeric: tabular-nums;
    }
    .fc-stat-unit {
      font-size: 12px; font-weight: 600;
      color: var(--color-text-muted);
    }
    .fc-stat-desc {
      margin-left: auto;
      font-size: 11px; color: var(--color-text-muted);
    }

    @media (max-width: 900px) {
      .features-grid { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 540px) {
      .features-grid { grid-template-columns: 1fr; }
    }

    /* ========== Product Intro (双栏图文) ========== */
    .intro {
      background: linear-gradient(180deg, var(--color-bg-page) 0%, #fff 100%);
    }
    .intro-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 80px;
      align-items: center;
    }
    .intro-visual {
      position: relative;
      height: 460px;
    }
    .iv-main {
      position: absolute; left: 0; top: 30px;
      width: 90%; height: 380px;
      background: linear-gradient(135deg, #0faeff, #0090d9);
      border-radius: var(--radius-2xl);
      box-shadow: var(--shadow-glow);
      padding: 32px;
      color: #fff;
      display: flex; flex-direction: column; justify-content: space-between;
      overflow: hidden;
    }
    .iv-main::before {
      content: ''; position: absolute; right: -60px; top: -60px;
      width: 200px; height: 200px;
      background: radial-gradient(circle, rgba(255,255,255,0.2), transparent 70%);
      border-radius: 50%;
    }
    .iv-main::after {
      content: ''; position: absolute; left: -40px; bottom: -40px;
      width: 160px; height: 160px;
      background: radial-gradient(circle, rgba(255,255,255,0.1), transparent 70%);
      border-radius: 50%;
    }
    .iv-main .iv-label {
      font-size: 12px; font-weight: 600;
      letter-spacing: 0.1em;
      opacity: 0.85;
      position: relative;
    }
    .iv-main .iv-title {
      font-size: 32px; font-weight: 800;
      line-height: 1.2;
      position: relative;
    }
    .iv-main .iv-points {
      display: flex; flex-direction: column; gap: 8px;
      position: relative;
    }
    .iv-main .iv-point {
      display: flex; align-items: center; gap: 8px;
      font-size: 13px; font-weight: 500;
    }
    .iv-main .iv-point::before {
      content: ''; width: 16px; height: 16px;
      background: rgba(255,255,255,0.25);
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
      background-size: 10px;
      background-repeat: no-repeat;
      background-position: center;
    }

    .iv-float {
      position: absolute;
      background: #fff;
      border-radius: var(--radius-lg);
      padding: 16px 18px;
      box-shadow: var(--shadow-hover);
      animation: floatA 4s ease-in-out infinite;
    }
    .iv-float-1 {
      right: 0; top: 0;
      width: 220px;
    }
    .iv-float-2 {
      right: 30px; bottom: 0;
      width: 240px;
      animation: floatB 5s ease-in-out infinite;
    }
    .iv-float .ivf-label {
      font-size: 11px; font-weight: 600; color: var(--color-text-muted);
      margin-bottom: 6px;
    }
    .iv-float .ivf-num {
      font-size: 28px; font-weight: 800; letter-spacing: -0.02em;
      background: linear-gradient(135deg, var(--color-primary-deeper), var(--color-primary));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .iv-float .ivf-trend {
      display: inline-flex; align-items: center; gap: 3px;
      font-size: 11px; font-weight: 700; color: var(--color-emerald);
      margin-top: 4px;
    }
    .iv-float .ivf-trend svg { width: 10px; height: 10px; stroke: currentColor; stroke-width: 2.5; fill: none; stroke-linecap: round; stroke-linejoin: round; }

    .intro-text h2 {
      font-size: 36px; font-weight: 800;
      line-height: 1.2; letter-spacing: -0.02em;
      margin-bottom: 20px;
    }
    .intro-text h2 .accent {
      background: linear-gradient(135deg, var(--color-primary), var(--color-purple));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .intro-text > p {
      font-size: 16px; color: var(--color-text-secondary);
      line-height: 1.8; margin-bottom: 32px;
    }
    .intro-list { display: flex; flex-direction: column; gap: 16px; }
    .intro-list li {
      display: flex; align-items: flex-start; gap: 12px;
      list-style: none;
    }
    .il-icon {
      width: 32px; height: 32px;
      background: var(--color-primary-bg);
      border-radius: 8px;
      display: flex; align-items: center; justify-content: center;
      flex-shrink: 0;
    }
    .il-icon svg { width: 16px; height: 16px; stroke: var(--color-primary); stroke-width: 2.2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
    .il-text strong { display: block; font-size: 15px; font-weight: 700; color: var(--color-text-primary); margin-bottom: 2px; }
    .il-text span { font-size: 13px; color: var(--color-text-muted); line-height: 1.6; }

    /* ========== Function Modules (报修/巡检) ========== */
    .modules {
      background: #fff;
    }
    .modules-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .module-card {
      position: relative;
      padding: 40px;
      background: var(--color-bg-surface);
      border-radius: var(--radius-2xl);
      overflow: hidden;
      transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .module-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .module-card.featured {
      background: linear-gradient(135deg, #0faeff 0%, #0090d9 100%);
      color: #fff;
      box-shadow: var(--shadow-glow);
      border: none;
    }
    .module-card.featured::before {
      content: ''; position: absolute; right: -80px; top: -80px;
      width: 240px; height: 240px;
      background: radial-gradient(circle, rgba(255,255,255,0.15), transparent 70%);
      border-radius: 50%;
    }
    .mc-head {
      display: flex; align-items: center; justify-content: space-between;
      margin-bottom: 24px;
      position: relative;
    }
    .mc-tag {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 4px 12px;
      background: var(--color-primary-bg);
      color: var(--color-primary-deeper);
      border-radius: var(--radius-full);
      font-size: 11px; font-weight: 700;
      letter-spacing: 0.05em;
    }
    .module-card.featured .mc-tag {
      background: rgba(255,255,255,0.25);
      color: #fff;
    }
    .mc-icon-lg {
      width: 56px; height: 56px;
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
      border-radius: 16px;
      display: flex; align-items: center; justify-content: center;
      box-shadow: 0 6px 20px rgba(15, 174, 255, 0.3);
    }
    .mc-icon-lg svg { width: 28px; height: 28px; stroke: #fff; stroke-width: 2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
    .module-card.featured .mc-icon-lg {
      background: rgba(255,255,255,0.22);
      box-shadow: none;
    }
    .mc-title {
      font-size: 24px; font-weight: 800; margin-bottom: 12px;
      letter-spacing: -0.01em;
    }
    .mc-desc {
      font-size: 14px; line-height: 1.7;
      color: var(--color-text-secondary);
      margin-bottom: 28px;
      position: relative;
    }
    .module-card.featured .mc-desc { color: rgba(255,255,255,0.9); }
    .mc-features {
      display: flex; flex-direction: column; gap: 0;
      position: relative;
      padding-left: 4px;
    }
    .mc-features::before {
      content: ''; position: absolute; left: 25px; top: 20px; bottom: 16px;
      width: 2px; border-radius: 2px;
      background: linear-gradient(180deg, var(--color-primary), var(--color-primary-deeper));
      opacity: 0.2;
    }
    .mc-feat {
      display: flex; align-items: flex-start; gap: 14px;
      padding: 10px 4px;
      background: transparent;
      border-radius: 0;
      font-size: 13px; font-weight: 400; line-height: 1.55;
      position: relative; z-index: 1;
    }
    .module-card.featured .mc-feat {
      background: transparent;
    }
    .mc-feat-index {
      flex-shrink: 0;
      width: 36px; height: 36px;
      border-radius: 10px;
      background: linear-gradient(145deg, #e8f7ff 0%, #d4f0ff 50%, #c0e8ff 100%);
      box-shadow: 0 4px 12px rgba(15, 174, 255, 0.18), inset 0 -2px 6px rgba(15, 174, 255, 0.10), inset 0 2px 6px rgba(255,255,255,0.9);
      display: flex; align-items: center; justify-content: center;
      font-size: 13px; font-weight: 700; color: var(--color-primary-deeper);
      font-variant-numeric: tabular-nums;
      position: relative;
    }
    .module-card.featured .mc-feat-index {
      background: linear-gradient(145deg, rgba(255,255,255,0.28), rgba(255,255,255,0.12));
      box-shadow: 0 4px 12px rgba(0,0,0,0.12), inset 0 1px 0 rgba(255,255,255,0.3);
      color: #fff;
    }
    .mc-feat-body {
      flex: 1 1 auto;
      min-width: 120px;
      padding-top: 5px;
      overflow-wrap: break-word;
    }
    .mc-feat-text b {
      display: block;
      color: var(--color-text-primary);
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 2px;
    }
    .module-card.featured .mc-feat-text b { color: #fff; }
    .mc-feat-text {
      color: var(--color-text-secondary);
    }
    .module-card.featured .mc-feat-text {
      color: rgba(255,255,255,0.9);
    }
    .mc-feat svg { display: none; }

    /* ========== Roles Section (3 个角色) ========== */
    .roles {
      background: linear-gradient(180deg, #fff 0%, var(--color-bg-page) 100%);
    }
    .roles-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .role-card {
      padding: 36px 28px;
      background: #fff;
      border-radius: var(--radius-2xl);
      transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .role-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: var(--color-border-strong);
    }
    .rc-avatar {
      width: 64px; height: 64px;
      border-radius: 16px;
      display: flex; align-items: center; justify-content: center;
      margin-bottom: 20px;
    }
    .role-card:nth-child(1) { background: #edf8ff; }
    .role-card:nth-child(2) { background: #fff3ed; }
    .role-card:nth-child(3) { background: #f3f0ff; }
    .role-card:nth-child(1) .rc-avatar {
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-deeper));
    }
    .role-card:nth-child(2) .rc-avatar {
      background: linear-gradient(135deg, var(--color-orange), var(--color-orange-dark));
    }
    .role-card:nth-child(3) .rc-avatar {
      background: linear-gradient(135deg, var(--color-purple), var(--color-purple-dark));
    }
    .rc-avatar svg { width: 32px; height: 32px; stroke: #fff; stroke-width: 2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
    .rc-title {
      font-size: 20px; font-weight: 800;
      color: var(--color-text-primary);
      margin-bottom: 4px;
    }
    .rc-role {
      font-size: 13px; font-weight: 600;
      color: var(--color-primary);
      margin-bottom: 16px;
    }
    .rc-desc {
      font-size: 14px; color: var(--color-text-secondary);
      line-height: 1.7;
      margin-bottom: 24px;
      padding-bottom: 24px;
    }
    .rc-list { list-style: none; }
    .rc-list li {
      display: flex; align-items: flex-start; gap: 10px;
      padding: 8px 0;
      font-size: 14px; color: var(--color-text-secondary);
    }
    .rc-list svg {
      width: 16px; height: 16px; stroke: var(--color-emerald); stroke-width: 2.4; fill: none; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; margin-top: 3px;
    }

    /* ========== Screenshots / Gallery ========== */
    .gallery {
      background: #fff;
    }
    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .gallery-item {
      position: relative;
      aspect-ratio: 4 / 3;
      background: linear-gradient(135deg, #f2f8ff, #e8f4ff);
      border-radius: var(--radius-xl);
      overflow: hidden;
      cursor: pointer;
      transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .gallery-item:hover {
      transform: translateY(-4px) scale(1.01);
      box-shadow: var(--shadow-hover);
    }
    .gallery-item.large { grid-column: span 2; aspect-ratio: 16 / 9; }
    .gi-mock {
      position: absolute; inset: 0;
      display: flex; align-items: center; justify-content: center;
      padding: 24px;
    }
    .gi-mock .mock-window {
      width: 100%; height: 100%;
      background: #fff;
      border-radius: 12px;
      box-shadow: 0 8px 24px rgba(0, 80, 150, 0.10);
      overflow: hidden;
      display: flex; flex-direction: column;
    }
    .mock-titlebar {
      height: 28px;
      background: var(--color-bg-surface);
      display: flex; align-items: center; gap: 6px;
      padding: 0 12px;
    }
    .mock-titlebar span { width: 8px; height: 8px; border-radius: 50%; background: #e0e6ed; }
    .mock-titlebar span:nth-child(1) { background: #ff6b6b; }
    .mock-titlebar span:nth-child(2) { background: #ffc043; }
    .mock-titlebar span:nth-child(3) { background: #43a047; }
    .mock-body {
      flex: 1; padding: 12px;
      display: grid; grid-template-columns: 80px 1fr; gap: 10px;
    }
    .mock-side {
      background: var(--color-primary-bg);
      border-radius: 6px; padding: 8px 6px;
    }
    .mock-side-item {
      height: 14px; background: rgba(15,174,255,0.15); border-radius: 3px; margin-bottom: 6px;
    }
    .mock-side-item.active { background: var(--color-primary); }
    .mock-content {
      display: grid; grid-template-rows: 24px 1fr 1fr; gap: 8px;
    }
    .mock-content-bar { background: var(--color-bg-surface); border-radius: 4px; }
    .mock-content-blocks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
    .mock-block { background: var(--color-primary-bg); border-radius: 4px; }
    .mock-block.b { background: rgba(255,120,73,0.15); }
    .mock-block.g { background: rgba(16,185,129,0.15); }
    .mock-content-charts { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
    .mock-chart { background: var(--color-bg-surface); border-radius: 4px; position: relative; overflow: hidden; }
    .mock-chart::after {
      content: ''; position: absolute; bottom: 0; left: 0; right: 0;
      height: 60%;
      background: linear-gradient(180deg, transparent, var(--color-primary-bg));
    }
    .gi-label {
      position: absolute; left: 16px; bottom: 16px;
      padding: 6px 12px;
      background: rgba(255,255,255,0.95);
      backdrop-filter: blur(10px);
      border-radius: var(--radius-full);
      font-size: 12px; font-weight: 700; color: var(--color-text-primary);
      box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    }
    .gi-tag {
      position: absolute; right: 16px; top: 16px;
      padding: 4px 10px;
      background: var(--color-primary);
      color: #fff;
      border-radius: var(--radius-full);
      font-size: 10px; font-weight: 700;
      letter-spacing: 0.05em;
    }

    /* ========== CTA Section ========== */
    .cta {
      padding: 100px 0;
      background:
        radial-gradient(ellipse 800px 400px at 50% 50%, rgba(15, 174, 255, 0.10), transparent 60%),
        var(--color-bg-page);
    }
    .cta-card {
      margin: 0 auto;
      padding: 64px 48px;
      background: linear-gradient(135deg, #0faeff 0%, #0077be 100%);
      border-radius: var(--radius-2xl);
      color: #fff;
      text-align: center;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-glow);
    }
    .cta-card::before, .cta-card::after {
      content: ''; position: absolute;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255,255,255,0.15), transparent 70%);
    }
    .cta-card::before { width: 400px; height: 400px; right: -150px; top: -150px; }
    .cta-card::after  { width: 300px; height: 300px; left: -100px; bottom: -100px; }
    .cta-card > * { position: relative; }
    .cta-card h2 {
      font-size: 36px; font-weight: 800;
      line-height: 1.25; margin-bottom: 16px;
      letter-spacing: -0.02em;
    }
    .cta-card p {
      font-size: 16px; opacity: 0.92;
      line-height: 1.7; margin-bottom: 36px;
      max-width: 560px; margin-left: auto; margin-right: auto;
    }
    .cta-actions { display: flex; gap: 40px; justify-content: center; flex-wrap: wrap; }
    .cta-actions img {margin: 0 auto;}

    /* ========== News Section ========== */
    .news {
      background: linear-gradient(180deg, #fff 0%, var(--color-bg-page) 100%);
      position: relative;
      overflow: hidden;
    }
    .news::before {
      content: '';
      position: absolute;
      top: -200px; left: -300px;
      width: 700px; height: 700px;
      background: radial-gradient(circle, rgba(15, 174, 255, 0.06), transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .news::after {
      content: '';
      position: absolute;
      bottom: -200px; right: -200px;
      width: 600px; height: 600px;
      background: radial-gradient(circle, rgba(124, 92, 252, 0.05), transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }

    /* 过滤标签栏 */
    .news-filter {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      margin-bottom: 48px;
      flex-wrap: wrap;
    }
    .nf-tab {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 8px 20px;
      background: #fff;
      border: 1.5px solid rgba(15, 174, 255, 0.12);
      border-radius: var(--radius-full);
      font-size: 13px; font-weight: 600;
      color: var(--color-text-secondary);
      cursor: pointer;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      box-shadow: 0 2px 8px rgba(0, 60, 120, 0.04);
    }
    .nf-tab:hover {
      border-color: var(--color-primary);
      color: var(--color-primary);
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(15, 174, 255, 0.12);
    }
    .nf-tab.active {
      background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
      border-color: transparent;
      color: #fff;
      box-shadow: 0 6px 20px rgba(15, 174, 255, 0.30);
    }
    .nf-tab .nf-dot {
      width: 6px; height: 6px; border-radius: 50%;
      background: currentColor;
      opacity: 0.7;
    }

    /* 精选新闻 (大卡) */
    .news-featured {
      display: grid;
      grid-template-columns: 1.4fr 1fr;
      gap: 24px;
      margin-bottom: 24px;
    }

    .news-card {
      position: relative;
      background: #fff;
      border-radius: var(--radius-2xl);
      overflow: hidden;
      box-shadow: 0 4px 20px rgba(0, 60, 120, 0.06);
      transition: all 0.45s cubic-bezier(0.16, 1, 0.3, 1);
      cursor: pointer;
      display: flex;
      flex-direction: column;
    }
    .news-card:hover {
      transform: translateY(-6px);
      box-shadow: 0 20px 48px rgba(15, 174, 255, 0.14);
    }
    .news-card:hover .nc-cover-img {
      transform: scale(1.05);
    }
    .news-card:hover .nc-read-more {
      gap: 8px;
    }
    .news-card:hover .nc-read-more svg {
      transform: translateX(3px);
    }

    /* 封面图区 */
    .nc-cover {
      position: relative;
      overflow: hidden;
      flex-shrink: 0;
    }
    .nc-cover-img {
      width: 100%;
      height: 100%;
      display: block;
      transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    }
    /* 精选卡 封面高度 */
    .news-card.featured-main .nc-cover { height: 260px; }
    .news-card.featured-side .nc-cover { height: 180px; }

    /* 封面渐变遮罩 */
    .nc-cover::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 40%, rgba(0, 30, 80, 0.22) 100%);
      pointer-events: none;
    }
    /* 标签浮层 */
    .nc-badge {
      position: absolute;
      top: 14px; left: 14px;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      font-size: 10px; font-weight: 800;
      letter-spacing: 0.05em;
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      z-index: 2;
    }
    .nc-badge.tag-product { background: rgba(15, 174, 255, 0.88); color: #fff; }
    .nc-badge.tag-case    { background: rgba(16, 185, 129, 0.88); color: #fff; }
    .nc-badge.tag-update  { background: rgba(124, 92, 252, 0.88); color: #fff; }
    .nc-badge.tag-industry{ background: rgba(255, 120, 73, 0.88); color: #fff; }
    .nc-badge.tag-hot {
      top: 14px; left: auto; right: 14px;
      background: rgba(255, 73, 73, 0.88); color: #fff;
      display: flex; align-items: center; gap: 4px;
    }
    .nc-badge.tag-hot::before { content: '🔥'; font-size: 9px; }

    /* 纯色封面占位（无图片时用渐变）*/
    .nc-cover-gradient {
      width: 100%; height: 140px;
      position: relative;
      display: flex; align-items: center; justify-content: center;
      overflow: hidden;
    }
    /* 各主题配色 */
    .nc-cover-gradient.theme-blue {
      background: linear-gradient(135deg, #0faeff 0%, #5ed4ff 50%, #a8eeff 100%);
    }
    .nc-cover-gradient.theme-green {
      background: linear-gradient(135deg, #10b981 0%, #34d399 60%, #6ee7b7 100%);
    }
    .nc-cover-gradient.theme-purple {
      background: linear-gradient(135deg, #7c5cfc 0%, #a78bfa 60%, #c4b5fd 100%);
    }
    .nc-cover-gradient.theme-orange {
      background: linear-gradient(135deg, #ff7849 0%, #ffa940 60%, #ffd580 100%);
    }
    .nc-cover-gradient.theme-navy {
      background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    }
    /* 封面内部装饰 */
    .nc-cover-gradient::before {
      content: '';
      position: absolute; right: -40px; top: -40px;
      width: 160px; height: 160px;
      background: radial-gradient(circle, rgba(255,255,255,0.25), transparent 70%);
      border-radius: 50%;
    }
    .nc-cover-gradient::after {
      content: '';
      position: absolute; left: -20px; bottom: -20px;
      width: 120px; height: 120px;
      background: radial-gradient(circle, rgba(255,255,255,0.12), transparent 70%);
      border-radius: 50%;
    }
    /* 封面中央图标 */
    .nc-cover-icon {
      position: relative; z-index: 2;
      width: 68px; height: 68px;
      background: rgba(255, 255, 255, 0.22);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
      border-radius: 20px;
      display: flex; align-items: center; justify-content: center;
      box-shadow:
        0 8px 24px rgba(0,0,0,0.12),
        inset 0 1px 0 rgba(255,255,255,0.4);
    }
    .nc-cover-icon svg {
      width: 32px; height: 32px;
      stroke: #fff; stroke-width: 1.75;
      fill: none; stroke-linecap: round; stroke-linejoin: round;
    }
    /* 小卡的封面图标小一点 */
    .news-card.news-small .nc-cover-icon {
      width: 48px; height: 48px; border-radius: 14px;
    }
    .news-card.news-small .nc-cover-icon svg { width: 22px; height: 22px; }

    /* 文字内容区 */
    .nc-body {
      padding: 22px 24px 20px;
      display: flex; flex-direction: column;
      flex: 1;
    }
    .nc-meta {
      display: flex; align-items: center; gap: 10px;
      margin-bottom: 10px;
    }
    .nc-date {
      font-size: 11px; color: var(--color-text-muted); font-weight: 500;
      display: flex; align-items: center; gap: 4px;
    }
    .nc-date svg {
      width: 11px; height: 11px; stroke: currentColor; stroke-width: 2.2;
      fill: none; stroke-linecap: round; stroke-linejoin: round;
    }
    .nc-views {
      font-size: 11px; color: var(--color-text-muted); font-weight: 500;
      display: flex; align-items: center; gap: 4px;
    }
    .nc-views svg {
      width: 11px; height: 11px; stroke: currentColor; stroke-width: 2.2;
      fill: none; stroke-linecap: round; stroke-linejoin: round;
    }
    .nc-sep { width: 3px; height: 3px; border-radius: 50%; background: var(--color-text-disabled); }

    .nc-title {
      font-size: 17px; font-weight: 800;
      color: var(--color-text-primary);
      line-height: 1.45;
      margin-bottom: 10px;
      letter-spacing: -0.01em;
      transition: color 0.25s;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .news-card:hover .nc-title { color: var(--color-primary-deeper); }
    .news-card.featured-main .nc-title { font-size: 20px; }

    .nc-excerpt {
      font-size: 13px; color: var(--color-text-secondary);
      line-height: 1.7;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      margin-bottom: 16px;
      flex: 1;
    }
    .news-card.featured-main .nc-excerpt { -webkit-line-clamp: 3; }

    .nc-footer {
      display: flex; align-items: center; justify-content: space-between;
      padding-top: 14px;
      border-top: 1px solid rgba(15, 174, 255, 0.07);
      margin-top: auto;
    }
    .nc-author {
      display: flex; align-items: center; gap: 8px;
    }
    .nc-avatar {
      width: 26px; height: 26px; border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-size: 10px; font-weight: 800; color: #fff;
      flex-shrink: 0;
    }
    .nc-avatar.av-blue   { background: linear-gradient(135deg, #0faeff, #0090d9); }
    .nc-avatar.av-green  { background: linear-gradient(135deg, #10b981, #059669); }
    .nc-avatar.av-purple { background: linear-gradient(135deg, #7c5cfc, #5b3cf6); }
    .nc-avatar.av-orange { background: linear-gradient(135deg, #ff7849, #ff5a2a); }
    .nc-author-name {
      font-size: 12px; font-weight: 600; color: var(--color-text-secondary);
    }
    .nc-read-more {
      display: inline-flex; align-items: center; gap: 4px;
      font-size: 12px; font-weight: 700; color: var(--color-primary);
      transition: gap 0.25s;
    }
    .nc-read-more svg {
      width: 13px; height: 13px; stroke: currentColor; stroke-width: 2.5;
      fill: none; stroke-linecap: round; stroke-linejoin: round;
      transition: transform 0.25s;
    }

    /* 普通新闻列表 (3列网格) */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 48px;
    }
    .news-card.news-small .nc-cover { height: 140px; }
    .news-card.news-small .nc-title { font-size: 15px; -webkit-line-clamp: 2; }
    .news-card.news-small .nc-excerpt { -webkit-line-clamp: 2; font-size: 12px; }
    .news-card.news-small .nc-body { padding: 16px 18px 14px; }

    /* 加载更多 */
    .news-load-more {
      display: flex;
      justify-content: center;
    }
    .btn-load-more {
      display: inline-flex; align-items: center; gap: 8px;
      padding: 13px 32px;
      background: #fff;
      border: 1.5px solid rgba(15, 174, 255, 0.2);
      border-radius: var(--radius-full);
      font-size: 14px; font-weight: 700; color: var(--color-text-secondary);
      cursor: pointer;
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      box-shadow: 0 4px 12px rgba(0, 60, 120, 0.05);
    }
    .btn-load-more:hover {
      border-color: var(--color-primary);
      color: var(--color-primary);
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(15, 174, 255, 0.14);
    }
    .btn-load-more svg {
      width: 15px; height: 15px; stroke: currentColor; stroke-width: 2.2;
      fill: none; stroke-linecap: round; stroke-linejoin: round;
      transition: transform 0.4s;
    }
    .btn-load-more:hover svg { transform: rotate(180deg); }

    /* 数据小徽章 —— 右上角悬浮统计（精选卡右侧用） */
    .news-stats-panel {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .nsp-card {
      background: #fff;
      border-radius: var(--radius-xl);
      padding: 20px 22px;
      box-shadow: 0 4px 20px rgba(0, 60, 120, 0.06);
      display: flex; align-items: center; gap: 14px;
      transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .nsp-card:hover {
      transform: translateX(4px);
      box-shadow: 0 8px 28px rgba(15, 174, 255, 0.12);
    }
    .nsp-icon {
      width: 44px; height: 44px; border-radius: 12px;
      display: flex; align-items: center; justify-content: center;
      flex-shrink: 0;
    }
    .nsp-icon svg { width: 22px; height: 22px; stroke-width: 1.9; fill: none; stroke-linecap: round; stroke-linejoin: round; }
    .nsp-icon.ic-blue   { background: linear-gradient(145deg, #dbeeff, #bce4ff); }
    .nsp-icon.ic-blue svg { stroke: #0077be; }
    .nsp-icon.ic-green  { background: linear-gradient(145deg, #d4fce8, #aaf0d6); }
    .nsp-icon.ic-green svg { stroke: #059669; }
    .nsp-icon.ic-orange { background: linear-gradient(145deg, #ffe4d4, #ffcba8); }
    .nsp-icon.ic-orange svg { stroke: #ff7849; }
    .nsp-info { flex: 1; }
    .nsp-num {
      font-size: 24px; font-weight: 800; color: var(--color-text-primary);
      letter-spacing: -0.02em; line-height: 1;
    }
    .nsp-label {
      font-size: 11px; color: var(--color-text-muted); margin-top: 3px;
    }

    /* featured 布局: 左大右列 */
    .news-featured-wrap {
      display: grid;
      grid-template-columns: 1fr 320px;
      gap: 24px;
      margin-bottom: 24px;
    }
    .news-featured-left {
      display: grid;
      grid-template-rows: auto;
      gap: 24px;
    }
    .news-featured-left .news-card.featured-main { flex: 1; }

    /* 精选侧栏 */
    .news-featured-side {
      display: flex; flex-direction: column; gap: 16px;
    }
    .news-featured-side .news-card.featured-side {
      flex: none;
    }

    @media (max-width: 900px) {
      .news-featured-wrap { grid-template-columns: 1fr; }
      .news-grid { grid-template-columns: repeat(2, 1fr); }
      .news-stats-panel { flex-direction: row; flex-wrap: wrap; }
    }
    @media (max-width: 540px) {
      .news-grid { grid-template-columns: 1fr; }
      .news-filter { gap: 6px; }
      .nf-tab { padding: 7px 14px; font-size: 12px; }
    }

    /* ========== Responsive (Hero + Section) ========== */
    @media (max-width: 900px) {
      .hero { padding: 40px 0 80px; }
      .hero h1 { font-size: 36px; }
      .hero-sub { font-size: 15px; }
      .hero-inner { grid-template-columns: 1fr; gap: 40px; }
      .hero-visual { display: none; }
      .hv-float-1, .hv-float-2, .hv-float-3, .hv-float-4 { display: none; }
      .hv-phone { display: none; }
      .iv-float { display: none; }
      .section-title { font-size: 28px; }
      .section-sub { font-size: 14px; }
      .features-grid { grid-template-columns: repeat(2, 1fr); }
      .intro-grid { grid-template-columns: 1fr; gap: 40px; }
      .intro-text h2 { display: none; } 
      .modules-grid { grid-template-columns: 1fr; }
      .roles-grid { grid-template-columns: 1fr; }
      .gallery-grid { grid-template-columns: 1fr 1fr; }
      .gallery-item.large { grid-column: span 2; }
      .logo-strip-grid { grid-template-columns: repeat(3, 1fr); }
      .news-featured-wrap { grid-template-columns: 1fr; }
      .news-grid { grid-template-columns: repeat(2, 1fr); }
      .news-stats-panel { flex-direction: row; flex-wrap: wrap; }
      section { padding: 30px 0; }
      .cta-card { padding: 48px 32px; }
      .cta-card h2 { font-size: 28px; }
    }
    @media (max-width: 540px) {
      .hero { padding: 32px 0 56px; }
      .hero h1 { font-size: 28px; }
      .hero-sub { font-size: 14px; }
      .hero-eyebrow { font-size: 11px; padding: 6px 12px; }
      .hero-trust { flex-direction: column; align-items: flex-start; gap: 12px; }
      .section-title { font-size: 24px; }
      .features-grid { grid-template-columns: 1fr; }
      .feature-card { padding: 28px 20px 20px; }
      .iv-main { padding: 24px;  width: 100%;}
      .iv-main .iv-title { font-size: 24px; }
      .gallery-grid { grid-template-columns: 1fr; }
      .gallery-item.large { grid-column: span 1; }
      .logo-strip-grid { grid-template-columns: repeat(2, 1fr); }
      .logo-strip-label::before, .logo-strip-label::after { width: 18px; margin: 0 8px; }
      .news-grid { grid-template-columns: 1fr; }
      .news-filter { gap: 6px; }
      .nf-tab { padding: 7px 14px; font-size: 12px; }
      .cta-card { padding: 36px 20px; }
      .cta-card h2 { font-size: 24px; }
      .cta-card p { font-size: 14px; }
      .btn-lg { padding: 12px 20px; font-size: 14px; }
      .hero-actions { flex-direction: column; }
      .hero-actions .btn { width: 100%; justify-content: center; }
      .cta-actions { flex-direction: column; }
      .cta-actions .img { width: 100%; justify-content: center;}
      .module-card { padding: 28px; }
    }