:root {
      --blue:       #00579c;
      --blue-dim:   #004a85;
      --blue-deep:  #003a6e;
      --blue-glow:  rgba(0,87,156,0.22);
      --blue-faint: rgba(0,87,156,0.07);
      --blue-mid:   rgba(0,87,156,0.14);
      --orange:     #e65100;
      --orange-dim: rgba(230,81,0,0.10);
      --teal:       #00897b;
      --teal-dim:   rgba(0,137,123,0.10);
      --bg:         #ffffff;
      --bg-alt:     #f8fafc;
      --bg-card:    #ffffff;
      --border:     rgba(148,163,184,0.28);
      --border-hi:  rgba(0,87,156,0.20);
      --t1: #0f172a;
      --t2: #475569;
      --t3: #94a3b8;
      --font: 'Inter', system-ui, sans-serif;
      --mono: 'JetBrains Mono', monospace;
      --radius: 14px;
    }
    @keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.55;transform:scale(1.4)} }

    /* ZCF hero stats — design: 4 cols + dividers */
    .hero-stats-wrap {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: var(--space-module) var(--space-gutter) 0;
      box-sizing: border-box;
    }
    .hero-stats {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 0;
      max-width: 100%;
      margin: 0;
      padding: 0;
      position: relative;
      z-index: 2;
      background: transparent;
      border: none;
      border-radius: 0;
      box-shadow: none;
    }
    .hero-stat {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0;
      padding: 0 var(--space-card);
      border-radius: 0;
      position: relative;
      text-align: center;
    }
    .hero-stat:first-child { padding-left: 0; }
    .hero-stat:last-child { padding-right: 0; }
    .hero-stat:not(:last-child)::after {
      content: '';
      position: absolute;
      right: 0;
      top: 12%;
      bottom: 12%;
      width: 1px;
      background: var(--color-border);
    }
    .hero-stat-bar { display: none; }
    .hero-stat-n {
      font-size: var(--font-size-5xl);
      font-weight: 700;
      color: var(--color-title);
      letter-spacing: -0.03em;
      line-height: 1.1;
      margin-bottom: 8px;
      font-family: var(--font-sans, var(--font));
    }
    .hero-stat-n span {
      font-size: var(--font-size-lg);
      font-weight: 700;
      margin-left: 2px;
    }
    .hero-stat-l {
      font-size: var(--font-size-body);
      color: var(--color-text-secondary);
      line-height: 1.45;
      font-family: var(--font-sans, var(--font));
    }
    @media (max-width: 900px) {
      .hero-stats { grid-template-columns: 1fr 1fr; row-gap: var(--space-card); }
      .hero-stat { padding: 0 var(--space-card) var(--space-card); }
      .hero-stat:nth-child(2n)::after { display: none; }
      .hero-stat:nth-child(-n+2) {
        border-bottom: 1px solid var(--color-border);
        padding-bottom: var(--space-card);
      }
      .hero-stat:nth-child(n+3)::after { display: none; }
      .hero-stat:nth-child(odd) { padding-left: 0; }
      .hero-stat:nth-child(even) { padding-right: 0; }
    }
    @media (max-width: 640px) {
      .hero-stats-wrap { padding-top: var(--space-card); }
      .hero-stat-n { font-size: var(--font-size-2xl); }
      .hero-stat-n span { font-size: var(--font-size-base); }
      .hero-stat-l { font-size: var(--font-size-caption); }
    }

    /* ══ WHY — cards; blue only on hover ══════════════════════════════ */
    .why-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: var(--space-card);
      margin-top: 0;
    }
    .why-card {
      --accent: var(--color-primary);
      background: linear-gradient(358deg, #d2e7ff4d 2%, #d2e7ff1a 96%);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: var(--space-card);
      position: relative;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      min-height: 0;
      box-shadow: none;
      transition: border-color .28s ease, color .28s ease, box-shadow .28s ease;
    }
    /* 光束：仅扫过一次（不循环） */
    .why-card::before {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: 0;
      width: 42%;
      z-index: 1;
      pointer-events: none;
      background: linear-gradient(
        100deg,
        transparent 0%,
        rgba(170, 220, 255, 0) 35%,
        rgba(200, 240, 255, 0.55) 50%,
        rgba(170, 220, 255, 0) 65%,
        transparent 100%
      );
      opacity: 0;
      transform: translateX(-130%);
      mix-blend-mode: screen;
    }
    .why-icon {
      width: 48px;
      height: 48px;
      margin: 0 0 14px;
      border-radius: 0;
      background: transparent !important;
      display: flex;
      align-items: center;
      justify-content: flex-start;
      position: relative;
      z-index: 2;
    }
    .why-icon img {
      display: block;
      width: 48px;
      height: 48px;
      object-fit: contain;
    }
    .why-title {
      font-size: var(--font-size-module-title);
      font-weight: 700;
      letter-spacing: -0.02em;
      color: var(--color-title);
      line-height: 1.3;
      margin: 0 0 10px;
      position: relative;
      z-index: 2;
      font-family: var(--font-sans, var(--font));
    }
    .why-txt {
      font-size: var(--font-size-body);
      color: var(--color-text-secondary);
      line-height: 1.65;
      margin: 0;
      position: relative;
      z-index: 2;
      flex: 1;
    }
    .why-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: auto;
      padding-top: var(--space-card);
      position: relative;
      z-index: 2;
    }
    .why-tag {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-size: var(--font-size-caption);
      color: var(--color-primary);
      border: 1px solid rgba(28, 88, 155, 0.3);
      border-radius: var(--radius-pill);
      padding: 6px 12px;
      font-family: var(--font-sans, var(--font));
      transition: color .28s ease, border-color .28s ease, background .28s ease;
    }
    .why-tag b {
      color: inherit;
      font-weight: 700;
    }
    .why-tag::after {
      content: '→';
      margin-left: 2px;
      font-weight: 600;
    }
    .why-mark { display: none; }

    /* 圆点底纹：旋转进入一次（不做上下位移） */
    .why-card::after {
      content: '';
      position: absolute;
      inset: -18%;
      z-index: 0;
      pointer-events: none;
      background: url("/static/skin/images/product/zcf/block-4-hover-bg.png") center / cover no-repeat;
      opacity: 0;
      transform: rotate(-20deg) scale(0.86);
      transform-origin: 68% 42%;
    }

    /* Hover：蓝底 + 圆点旋转进入 + 仅一条光束扫过（只跑一次） */
    .why-card:hover {
      background-color: #023d73;
      background-image: linear-gradient(131deg, #023d73 11%, #106ab4 70%, #014a86 105%);
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
      border-color: transparent;
      box-shadow: var(--shadow-selected);
    }
    .why-card:hover::after {
      animation: why-dots-spin-in .65s cubic-bezier(.22, 1, .36, 1) forwards;
    }
    .why-card:hover::before {
      animation: why-beam-once .85s .12s ease-out forwards;
    }
    .why-card:hover .why-title,
    .why-card:hover .why-txt {
      color: var(--color-text-on-dark);
    }
    .why-card:hover .why-tag {
      color: var(--color-text-on-dark);
      background: transparent;
      border-color: rgba(255, 255, 255, 0.45);
    }

    @keyframes why-dots-spin-in {
      from {
        opacity: 0;
        transform: rotate(-20deg) scale(0.86);
      }
      to {
        opacity: 1;
        transform: rotate(0deg) scale(1.05);
      }
    }
    @keyframes why-beam-once {
      0% {
        opacity: 0.95;
        transform: translateX(-130%);
      }
      100% {
        opacity: 0;
        transform: translateX(280%);
      }
    }
    @media (prefers-reduced-motion: reduce) {
      .why-card:hover::after,
      .why-card:hover::before {
        animation: none;
      }
      .why-card:hover::after {
        opacity: 1;
        transform: rotate(0deg) scale(1.05);
      }
    }
 

    @media (max-width: 900px) {
      .why-grid { grid-template-columns: 1fr; }
    }

    /* ══ ARCHITECTURE ════════════════════════════════════════════════ */
    #architecture.section--alt {
      background: var(--bg-alt);
    }
    .arch-banner {
      background: var(--blue-faint);
      border: 1px solid var(--border-hi);
      border-radius: var(--radius-sm);
      padding: 12px var(--space-card);
      margin-bottom: var(--space-card);
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 12px;
      font-size: var(--font-size-body);
      font-weight: 600;
      color: var(--color-primary);
      font-family: var(--font-sans, var(--font));
    }
    .arch-banner-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--color-primary);
      animation: pulse 2.4s ease-in-out infinite;
      flex-shrink: 0;
    }
    .arch-layers {
      display: flex;
      flex-direction: column;
      gap: var(--space-card);
    }
    .alayer {
      display: grid;
      grid-template-columns: minmax(220px, 0.75fr) minmax(0, 1.85fr);
      align-items: stretch;
      background: var(--bg-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: none;
      transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
    }
    .alayer::before { display: none; }
    .alayer:hover {
      border-color: var(--border-hi);
      transform: translateY(-2px);
      box-shadow: var(--shadow-selected);
    }
    .alayer-media {
      display: flex;
      align-items: center;
      justify-content: center;
      box-sizing: border-box;
    }
    .alayer-media img {
      display: block;
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .alayer-in {
      display: flex;
      flex-direction: column;
      padding: var(--space-module) var(--space-module) var(--space-card);
      min-width: 0;
      box-sizing: border-box;
    }
    .alayer-name {
      margin: 0 0 8px;
      font-size: var(--font-size-module-title);
      font-weight: 700;
      letter-spacing: -0.02em;
      line-height: 1.25;
      color: var(--color-title);
      font-family: var(--font-sans, var(--font));
    }
    .alayer-eyebrow {
      margin: 0 0 14px;
      font-size: var(--font-size-body);
      font-weight: 500;
      letter-spacing: 0;
      text-transform: none;
      color: var(--t3);
      font-family: var(--font-sans, var(--font));
    }
    .alayer-lead {
      margin: 0 0 var(--space-card);
      font-size: var(--font-size-body);
      font-weight: 400;
      line-height: 1.65;
      color: var(--color-text-secondary);
      max-width: none;
    }
    .alayer-detail {
      margin: 0 0 var(--space-card);
      padding: 0;
      border: none;
    }
    .alayer-detail-k {
      margin: 0 0 12px;
      font-size: var(--font-size-body);
      font-weight: 700;
      letter-spacing: 0;
      text-transform: none;
      color: var(--color-primary);
      font-family: var(--font-sans, var(--font));
    }
    .alayer-feats {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px 24px;
    }
    .alayer-feat {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: var(--font-size-body);
      color: var(--color-text-secondary);
      line-height: 1.55;
    }
    .alayer-feat::before {
      content: '';
      flex-shrink: 0;
      width: 6px;
      height: 6px;
      margin-top: 7px;
      border-radius: 2px;
      background: var(--color-primary);
    }
    .alayer-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: auto;
      padding-top: 4px;
    }
    .alayer-tag {
      display: inline-flex;
      align-items: center;
      font-size: var(--font-size-caption);
      font-weight: 600;
      color: var(--color-primary);
      background: var(--bg-card);
      border: 1px solid var(--border-hi);
      border-radius: var(--radius-pill);
      padding: 6px 12px;
      font-family: var(--font-sans, var(--font));
      transition: background .2s ease, color .2s ease, border-color .2s ease;
    }
    .alayer-tag:hover {
      background: var(--color-primary);
      border-color: var(--color-primary);
      color: var(--color-text-on-dark);
    }
    .alayer-ic,
    .alayer-head { display: none; }

    @media (max-width: 960px) {
      .alayer {
        grid-template-columns: 1fr;
      }
      .alayer-media {
        min-height: 200px;
        padding: var(--space-card);
      }
      .alayer-media img {
        max-width: 280px;
      }
      .alayer-in {
        padding: var(--space-card);
      }
      .alayer-feats {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 640px) {
      .arch-banner {
        flex-wrap: wrap;
        text-align: center;
        font-size: var(--font-size-caption);
      }
      .alayer-media {
        min-height: 160px;
      }
    }

    /* ══ ADVANTAGES — 上三下二；蓝色仅 hover ════════════════════════ */
    #zcf-advantages .adv-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: var(--space-card);
      margin-top: var(--space-module);
    }
    #zcf-advantages .adv-card {
      grid-column: span 2;
      background: var(--gradient-2);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: calc(var(--space-card) * 2.4) var(--space-card);
      text-align: center;
      position: relative;
      overflow: hidden;
      box-sizing: border-box;
      transition: background .28s ease, border-color .28s ease, box-shadow .28s ease;
    }
    /* 光束：与 why-card 一致，仅扫过一次 */
    #zcf-advantages .adv-card::before {
      content: '';
      position: absolute;
      top: 0;
      bottom: 0;
      left: 0;
      width: 42%;
      z-index: 1;
      pointer-events: none;
      background: linear-gradient(
        100deg,
        transparent 0%,
        rgba(170, 220, 255, 0) 35%,
        rgba(200, 240, 255, 0.55) 50%,
        rgba(170, 220, 255, 0) 65%,
        transparent 100%
      );
      opacity: 0;
      transform: translateX(-130%);
      mix-blend-mode: screen;
    }
    /* 圆点底纹：旋转缩放进入，与 why-card 一致 */
    #zcf-advantages .adv-card::after {
      content: '';
      position: absolute;
      inset: -18%;
      z-index: 0;
      pointer-events: none;
      background: url("/static/skin/images/product/zcf/block-4-hover-bg.png") center / cover no-repeat;
      opacity: 0;
      transform: rotate(-20deg) scale(0.86);
      transform-origin: 68% 42%;
    }
    #zcf-advantages .adv-card:nth-child(4) { grid-column: 2 / 4; }
    #zcf-advantages .adv-card:nth-child(5) { grid-column: 4 / 6; }
    #zcf-advantages .adv-title {
      margin: 0 0 12px;
      font-family: var(--font-sans, var(--font));
      font-size: var(--font-size-module-title);
      font-weight: 700;
      letter-spacing: -0.02em;
      line-height: 1.3;
      color: var(--color-title);
      position: relative;
      z-index: 1;
    }
    #zcf-advantages .adv-txt {
      margin: 0;
      font-size: var(--font-size-body);
      line-height: 1.65;
      color: var(--color-text-secondary);
      position: relative;
      z-index: 1;
    }
    #zcf-advantages .adv-card:hover {
      background-color: #023d73;
      background-image: linear-gradient(131deg, #023d73 11%, #106ab4 70%, #014a86 105%);
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
      border-color: transparent;
      box-shadow: var(--shadow-selected);
    }
    #zcf-advantages .adv-card:hover::after {
      animation: why-dots-spin-in .65s cubic-bezier(.22, 1, .36, 1) forwards;
    }
    #zcf-advantages .adv-card:hover::before {
      animation: why-beam-once .85s .12s ease-out forwards;
    }
    #zcf-advantages .adv-card:hover .adv-title,
    #zcf-advantages .adv-card:hover .adv-txt {
      color: var(--color-text-on-dark);
    }
    @media (prefers-reduced-motion: reduce) {
      #zcf-advantages .adv-card:hover::after,
      #zcf-advantages .adv-card:hover::before {
        animation: none;
      }
      #zcf-advantages .adv-card:hover::after {
        opacity: 1;
        transform: rotate(0deg) scale(1.05);
      }
    }
    @media (max-width: 960px) {
      #zcf-advantages .adv-grid {
        grid-template-columns: 1fr 1fr;
      }
      #zcf-advantages .adv-card,
      #zcf-advantages .adv-card:nth-child(4),
      #zcf-advantages .adv-card:nth-child(5) {
        grid-column: auto;
      }
      #zcf-advantages .adv-card:last-child {
        grid-column: 1 / -1;
        max-width: calc((100% - var(--space-card)) / 2);
        justify-self: center;
        width: 100%;
      }
    }
    @media (max-width: 640px) {
      #zcf-advantages .adv-grid {
        grid-template-columns: 1fr;
        margin-top: var(--space-module);
      }
      #zcf-advantages .adv-card,
      #zcf-advantages .adv-card:nth-child(4),
      #zcf-advantages .adv-card:nth-child(5),
      #zcf-advantages .adv-card:last-child {
        grid-column: auto;
        max-width: none;
      }
      #zcf-advantages .adv-card {
        padding: var(--space-card);
      }
    }

    /* ══ USE CASES — 三列卡；蓝色仅 hover / 标签描边 ═══════════════ */
    #use-cases .uc-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: var(--space-card);
      margin-top: var(--space-module);
      align-items: stretch;
    }
    #use-cases .uc-card {
      display: flex;
      flex-direction: column;
      background: linear-gradient(0deg, #d2e7ff4d 0%, #d2e7ff1a 85%);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: calc(var(--space-card) * 1.4) var(--space-card);
      position: relative;
      overflow: hidden;
      box-sizing: border-box;
      transition: background .28s ease, border-color .28s ease, transform .28s ease, box-shadow .28s ease;
    }
    #use-cases .uc-eyebrow {
      display: inline-flex;
      align-self: flex-start;
      align-items: center;
      margin: 0 0 14px;
      padding: 6px 12px;
      font-family: var(--font-sans, var(--font));
      font-size: var(--font-size-caption);
      font-weight: 600;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      color: var(--color-primary);
      background: rgba(255, 255, 255, 0.01);
      box-shadow: inset 0px -7px 12px 0px rgba(0, 87, 156, 0.12);
      border-radius: var(--radius-pill);
      position: relative;
      z-index: 1;
      transition: color .28s ease, background .28s ease, border-color .28s ease;
    }
    #use-cases .uc-eyebrow::before { content: '- '; }
    #use-cases .uc-eyebrow::after { content: ' -'; }
    #use-cases .uc-title {
      margin: 0 0 8px;
      font-family: var(--font-sans, var(--font));
      font-size: var(--font-size-module-title);
      font-weight: 700;
      letter-spacing: -0.02em;
      line-height: 1.3;
      color: var(--color-title);
      position: relative;
      z-index: 1;
    }
    #use-cases .uc-for {
      margin: 0 0 12px;
      font-family: var(--font-sans, var(--font));
      font-size: var(--font-size-base);
      font-weight: 600;
      font-style: normal;
      line-height: 1.45;
      color: var(--color-title);
      position: relative;
      z-index: 1;
    }
    #use-cases .uc-txt {
      margin: 0;
      font-size: var(--font-size-body);
      line-height: 1.65;
      color: var(--color-text-secondary);
      position: relative;
      z-index: 1;
      flex: 1;
    }
    #use-cases .uc-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: auto;
      padding-top: var(--space-card);
      border-top: none;
      position: relative;
      z-index: 1;
    }
    #use-cases .uc-tag {
      display: inline-flex;
      align-items: center;
      font-family: var(--font-sans, var(--font));
      font-size: var(--font-size-caption);
      font-weight: 500;
      color: var(--color-primary);
      background: transparent;
      border: 1px solid rgba(0, 87, 156, 0.3);
      border-radius: var(--radius-pill);
      padding: 6px 12px;
      white-space: nowrap;
      transition: color .28s ease, border-color .28s ease, background .28s ease;
    }
    #use-cases .uc-mark { display: none; }

    /* Hover：主色底 + 白字；标签描边变白 */
    #use-cases .uc-card:hover {
      background: linear-gradient(134deg, #023d73 0%, #02569b 64%, #014a86 96%);
      transform: translateY(-2px);
      box-shadow: var(--shadow-selected);
    }
    #use-cases .uc-card:hover .uc-title,
    #use-cases .uc-card:hover .uc-for,
    #use-cases .uc-card:hover .uc-txt {
      color: var(--color-text-on-dark);
    }
    #use-cases .uc-card:hover .uc-eyebrow {
      color: var(--color-text-on-dark);
      background: rgba(255, 255, 255, 0.12);
      border-color: rgba(255, 255, 255, 0.35);
    }
    #use-cases .uc-card:hover .uc-tag {
      color: var(--color-text-on-dark);
      background: transparent;
      border-color: rgba(255, 255, 255, 0.45);
    }

    @media (max-width: 960px) {
      #use-cases .uc-grid {
        grid-template-columns: 1fr;
        gap: var(--space-card);
      }
    }
    @media (max-width: 640px) {
      #use-cases .uc-card {
        padding: var(--space-card);
      }
      #use-cases .uc-tags {
        gap: 6px;
      }
    }

    /* ══ COMPATIBILITY — 左右底图 + 悬浮白卡 ════════════════════════ */
    #compatibility {
      background: var(--bg-alt);
    }
    #compatibility .compat-stage {
      position: relative;
      padding: var(--space-module) 0;
      overflow: hidden;
    }
    #compatibility .compat-stage-bg {
      position: absolute;
      inset: 0;
      display: grid;
      grid-template-columns: 0.85fr 1.25fr;
      pointer-events: none;
      z-index: 0;
    }
    #compatibility .compat-stage-left {
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
    }
    #compatibility .compat-stage-right{
      background-size: auto;
      background-position: left center;
      background-repeat: repeat-x;
    }
    #compatibility .compat-stage-left {
      background-color: #E2EDFA;
      background-image: url("/static/skin/images/product/zcf/block-6-left-bg.png");
    }
    #compatibility .compat-stage-right {
      background-color: #023d73;
      background-image: url("/static/skin/images/product/zcf/block-6-right-bg.png");
    }
    #compatibility .compat-stage-inner {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(200px, 0.75fr) minmax(0, 2.15fr);
      gap: var(--space-card);
      align-items: center;
    }
    #compatibility .compat-panel-title {
      display: block;
      margin: 0;
      padding: 0;
      font-family: var(--font-sans, var(--font));
      font-size: var(--font-size-4xl);
      font-weight:500;
      letter-spacing: -0.01em;
      line-height: 1.5;
      color: var(--color-primary);
      text-transform: none;
    }
    #compatibility .compat-panel-title::after {
      content: '';
      display: block;
      width: 48px;
      height: 3px;
      margin-top: 12px;
      background: var(--color-primary);
      border-radius: 2px;
    }
    #compatibility .compat-panel {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: calc(var(--space-card) * 1.6) calc(var(--space-card) * 1.4);
      margin: 0;
    }
    #compatibility .compat-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: var(--space-card);
      align-items: stretch;
    }
    #compatibility .compat-card {
      display: flex;
      flex-direction: column;
      background: transparent;
      border: none;
      border-radius: 0;
      padding: 0;
      min-width: 0;
      transition: none;
    }
    #compatibility .compat-card:hover {
      border: none;
      transform: none;
    }
    #compatibility .compat-icon { display: none; }
    #compatibility .compat-head {
      display: block;
      margin-bottom: 12px;
    }
    #compatibility .compat-name {
      font-family: var(--font-sans, var(--font));
      font-size: var(--font-size-module-title);
      font-weight: 700;
      letter-spacing: -0.02em;
      line-height: 1.3;
      color: var(--color-title);
    }
    #compatibility .compat-models {
      margin: 0 0 var(--space-card);
      font-size: var(--font-size-body);
      line-height: 1.65;
      color: var(--color-text-secondary);
      flex: 1;
    }
    #compatibility .compat-status {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      align-self: flex-start;
      margin-top: auto;
      padding: 8px 16px;
      font-family: var(--font-sans, var(--font));
      font-size: var(--font-size-caption);
      font-weight: 600;
      color: var(--color-primary);
      background: transparent;
      border: 1px solid rgba(0, 87, 156, 0.35);
      border-radius: var(--radius-pill);
      gap: 0;
      transition: color .22s ease, background .22s ease, border-color .22s ease;
    }
    #compatibility .compat-status-dot { display: none; }
    #compatibility .compat-status--ok { color: var(--color-primary); }
    #compatibility .compat-card:hover .compat-status,
    #compatibility .compat-status:hover {
      color: var(--color-text-on-dark);
      background: var(--color-primary);
      border-color: var(--color-primary);
    }

    @media (max-width: 960px) {
      #compatibility .compat-stage-bg {
        grid-template-columns: 1fr;
      }
      #compatibility .compat-stage-right { display: none; }
      #compatibility .compat-stage-inner {
        grid-template-columns: 1fr;
        gap: var(--space-card);
        align-items: stretch;
      }
      #compatibility .compat-grid-3 {
        grid-template-columns: 1fr;
        gap: var(--space-card);
      }
      #compatibility .compat-card + .compat-card {
        padding-top: var(--space-card);
        border-top: 1px solid var(--color-border);
      }
      #compatibility .compat-panel {
        padding: var(--space-card);
        border-radius: var(--radius-md);
      }
    }
    @media (max-width: 640px) {
      #compatibility .compat-stage {
        padding: var(--space-card) 0;
      }
      #compatibility .compat-panel-title {
        font-size: var(--font-size-subtitle);
      }
      #compatibility .compat-status {
        width: 100%;
        box-sizing: border-box;
      }
    }

    /* Platform cards (legacy helpers) */
    .compat-grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
    .platform-card { background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 20px; transition: border-color .2s, transform .2s; }
    .platform-card:hover { border-color: var(--border-hi); transform: translateY(-2px); }
    .platform-card--overlay { background: linear-gradient(135deg,var(--blue-faint),rgba(0,137,123,0.05)); border-color: var(--border-hi); box-shadow: 0 4px 16px rgba(0,87,156,0.08); }
    .platform-tag { font-size: 12px; font-weight: 800; letter-spacing: 0.06em; font-family: var(--font); border-radius: 6px; padding: 4px 10px; display: inline-block; margin-bottom: 10px; }
    .platform-tag--blue { background: var(--blue);  color: #fff; }
    .platform-tag--teal { background: var(--teal);  color: #fff; }
    .platform-tag--dark { background: #1a2744;      color: #fff; }
    .platform-name { font-size: 14px; font-weight: 700; color: var(--t1); margin-bottom: 4px; }
    .platform-desc { font-size: 12px; color: var(--t3); line-height: 1.55; }

    /* ══ CUSTOMER STORIES — tabs + panel ══════════════════════════════ */
    #stories .stories-tabs {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      margin-top: var(--space-module);
      gap: 0 var(--space-module);
    }
    #stories .stories-tab {
      appearance: none;
      -webkit-appearance: none;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      justify-content: flex-end;
      gap: 6px;
      width: 100%;
      margin: 0 0 -1px;
      padding: 16px 12px 18px;
      background: transparent;
      border: none;
      border-bottom: 3px solid #E1E2EA;
      box-sizing: border-box;
      cursor: pointer;
      text-align: center;
      font-family: var(--font-sans, var(--font));
      transition: border-color .22s ease, color .22s ease;
    }
    #stories .stories-tab-title {
      display: block;
      font-size: var(--font-size-base);
      font-weight: 700;
      letter-spacing: -0.02em;
      line-height: 1.3;
      color: var(--color-title);
      transition: color .22s ease;
    }
    #stories .stories-tab-sub {
      display: block;
      font-size: var(--font-size-body);
      font-weight: 400;
      line-height: 1.4;
      color: var(--color-text-secondary);
      transition: color .22s ease;
    }
    #stories .stories-tab:hover .stories-tab-title,
    #stories .stories-tab.is-active .stories-tab-title {
      color: var(--color-primary);
    }
    #stories .stories-tab:hover {
      border-bottom-color: rgba(0, 87, 156, 0.35);
    }
    #stories .stories-tab.is-active {
      border-bottom-color: var(--color-primary);
    }
    #stories .stories-tab:focus-visible {
      outline: 2px solid var(--color-primary);
      outline-offset: 2px;
    }

    #stories .stories-panels {
      margin-top: var(--space-card);
    }
    #stories .stories-panel {
      display: none;
      flex-direction: column;
      align-items: center;
      text-align: center;
      padding: var(--space-module) var(--space-card);
      background-color: #E8F2FD;
      background-image: url("/static/skin/images/product/zcf/block-6-left-bg.png");
      background-size: 100% 100%;
      background-position: center;
      background-repeat: no-repeat;
      box-sizing: border-box;
    }
    #stories .stories-panel[hidden] {
      display: none !important;
    }
    #stories .stories-panel.is-active {
      display: flex;
      animation: stories-panel-in .28s ease;
    }
    @keyframes stories-panel-in {
      from { opacity: 0; transform: translateY(8px); }
      to { opacity: 1; transform: none; }
    }
    #stories .stories-quote {
      margin: 0 auto var(--space-card);
      max-width: 920px;
      font-family: var(--font-sans, var(--font));
      font-size: var(--font-size-subtitle);
      font-weight: 500;
      font-style: normal;
      line-height: 1.6;
      color: var(--color-title);
    }
    #stories .stories-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      margin: 0 0 var(--space-module);
      padding: 10px 20px;
      font-family: var(--font-sans, var(--font));
      font-size: var(--font-size-body);
      font-weight: 600;
      color: var(--color-primary);
      background: rgba(0, 87, 156, 0.1);
      border: 1px solid rgba(28, 88, 155, 0.3);
      border-radius: var(--radius-pill);
      text-decoration: none;
      transition: color .22s ease, background .22s ease, border-color .22s ease;
    }
    #stories .stories-cta:hover {
      color: var(--color-text-on-dark);
      background: var(--color-primary);
      border-color: var(--color-primary);
    }
    #stories .stories-cta svg {
      flex-shrink: 0;
    }
    #stories .stories-visual{
      max-width: 83.5%;
      margin: 0 auto;
    }
    #stories .stories-visual img {
      display: block;
      width: 100%;
      height: auto;
    }
    #stories .stories-more {
      text-align: center;
      margin-top: var(--space-module);
    }

    @media (max-width: 960px) {
      #stories .stories-tabs {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        overflow: visible;
        gap: 0;
      }
      #stories .stories-tab {
        min-width: 0;
        max-width: none;
        width: 100%;
        flex: none;
        padding: 12px 8px 14px;
        align-items: center;
        text-align: center;
      }
      #stories .stories-tab-title {
        font-size: var(--font-size-body);
        word-break: break-word;
      }
      #stories .stories-tab-sub {
        font-size: var(--font-size-caption);
        word-break: break-word;
      }
      #stories .stories-quote {
        font-size: var(--font-size-base);
      }
      #stories .stories-panel {
        padding: var(--space-card);
        border-radius: var(--radius-md);
      }
      #stories .stories-cta {
        margin-bottom: var(--space-card);
      }
    }
    @media (max-width: 640px) {
      #stories .stories-tab {
        padding: 10px 4px 12px;
      }
      #stories .stories-visual {
        padding: 10px;
      }
    }

    /* ══ RESPONSIVE ══════════════════════════════════════════════════ */
    @media (max-width: 1024px) {
      .compat-grid-4 { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 900px) {
      .layer-feat-grid { grid-template-columns: 1fr; }
    }
    @media (max-width: 640px) {
      .compat-grid-4 { grid-template-columns: 1fr; }
    }
    /* ══ TRUST BAR（设计稿：左文右文 + 中间竖线） ══ */
    .zstack_AIOS_trust-section {
      background: var(--bg-alt);
      padding: var(--space-module) 0;
    }
    .zstack_AIOS_trust-section .wrap {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 var(--space-gutter);
      box-sizing: border-box;
    }
    .trust-bar-inner {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: var(--space-module);
      align-items: start;
      position: relative;
    }
    .trust-bar-inner::before {
      content: '';
      position: absolute;
      left: 50%;
      top: 8px;
      bottom: 8px;
      width: 1px;
      background: var(--color-border);
      transform: translateX(-50%);
      pointer-events: none;
    }
    .trust-card {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 0 var(--space-module);
      background: transparent;
      border: none;
      border-radius: 0;
      padding: 0 var(--space-module);
      min-width: 0;
      max-width: none;
      box-shadow: none;
    }
    .trust-card:hover {
      border-color: transparent;
    }
    .trust-org {
      min-width: 0 !important;
      margin: 0 0 12px;
      text-align: left;
    }
    .trust-logo {
      height: 28px;
      width: auto;
      display: block;
    }
    .trust-divider {
      display: none;
    }
    .trust-report {
      margin: 0 0 8px;
      font-size: var(--font-size-lg);
      font-weight: 700;
      line-height: 1.4;
      color: var(--color-title);
      font-family: var(--font-sans, var(--font));
    }
    .trust-meta {
      margin: 0;
      font-size: var(--font-size-body);
      line-height: 1.5;
      color: var(--color-text-secondary);
      font-family: var(--font-sans, var(--font));
    }
    @media (max-width: 960px) {
      .zstack_AIOS_trust-section {
        padding: var(--space-card) 0;
      }
      .trust-bar-inner {
        grid-template-columns: 1fr;
        gap: var(--space-card);
      }
      .trust-bar-inner::before {
        display: none;
      }
      .trust-card + .trust-card {
        padding-top: var(--space-card);
        border-top: 1px solid var(--color-border);
      }
    }
    
    @media (max-width: 900px) {
	  .why-grid { grid-template-columns: 1fr; }
	}