/* ============================================
       像素级还原 Figma node 612:730 — 解决方案
       画布 1920 × 2790；1rem = 16px @ 1920w（与 Vue 项目一致），
       PC 端所有尺寸只使用 1920 设计画布的单一横向缩放比例。
       ============================================ */

    .solution-page-html {
      --sol-design-w: 100vw;
      font-size: var(--fs-16);
      --sol-fs-10: var(--fs-10);
      --sol-fs-12: var(--fs-12);
      --sol-fs-14: var(--fs-14);
      --sol-fs-16: var(--fs-16);
      --sol-fs-18: calc(18 / 1920 * var(--sol-design-w));
      --sol-fs-20: var(--fs-20);
      --sol-fs-24: var(--fs-24);
      --sol-fs-28: var(--fs-28);
      --sol-fs-36: var(--fs-36);
      --sol-fs-48: var(--fs-48);
      --sol-space-4: calc(4 / 1920 * var(--sol-design-w));
      --sol-space-6: calc(6 / 1920 * var(--sol-design-w));
      --sol-space-8: calc(8 / 1920 * var(--sol-design-w));
      --sol-space-10: calc(10 / 1920 * var(--sol-design-w));
      --sol-space-12: calc(12 / 1920 * var(--sol-design-w));
      --sol-space-14: calc(14 / 1920 * var(--sol-design-w));
      --sol-space-16: calc(16 / 1920 * var(--sol-design-w));
      --sol-space-18: calc(18 / 1920 * var(--sol-design-w));
      --sol-space-20: calc(20 / 1920 * var(--sol-design-w));
      --sol-space-22: calc(22 / 1920 * var(--sol-design-w));
      --sol-space-24: calc(24 / 1920 * var(--sol-design-w));
      --sol-space-28: calc(28 / 1920 * var(--sol-design-w));
      --sol-space-30: calc(30 / 1920 * var(--sol-design-w));
      --sol-space-32: calc(32 / 1920 * var(--sol-design-w));
      --sol-space-33: calc(33 / 1920 * var(--sol-design-w));
      --sol-space-36: calc(36 / 1920 * var(--sol-design-w));
      --sol-space-40: calc(40 / 1920 * var(--sol-design-w));
      --sol-space-44: calc(44 / 1920 * var(--sol-design-w));
      --sol-space-45: calc(45 / 1920 * var(--sol-design-w));
      --sol-space-48: calc(48 / 1920 * var(--sol-design-w));
      --sol-space-50: calc(50 / 1920 * var(--sol-design-w));
      --sol-space-60: calc(60 / 1920 * var(--sol-design-w));
      --sol-space-68: calc(68 / 1920 * var(--sol-design-w));
      --sol-space-72: calc(72 / 1920 * var(--sol-design-w));
      --sol-space-75: calc(75 / 1920 * var(--sol-design-w));
      --sol-space-80: calc(80 / 1920 * var(--sol-design-w));
      --sol-space-84: calc(84 / 1920 * var(--sol-design-w));
      --sol-space-90: calc(90 / 1920 * var(--sol-design-w));
      --sol-space-120: calc(120 / 1920 * var(--sol-design-w));
      --sol-space-136: calc(136 / 1920 * var(--sol-design-w));
      --sol-space-160: calc(160 / 1920 * var(--sol-design-w));
      --sol-space-240: calc(240 / 1920 * var(--sol-design-w));
      --sol-float-frame-w: calc(282 / 1920 * var(--sol-design-w));
      --sol-float-frame-h: calc(42 / 1920 * var(--sol-design-w));
      --sol-radius-4: calc(4 / 1920 * var(--sol-design-w));
      --sol-radius-6: calc(6 / 1920 * var(--sol-design-w));
      --sol-radius-7: calc(7 / 1920 * var(--sol-design-w));
      --sol-radius-8: calc(8 / 1920 * var(--sol-design-w));
      --sol-radius-10: calc(10 / 1920 * var(--sol-design-w));
      --sol-platform-card-w: calc(326 / 1920 * var(--sol-design-w));
      --sol-platform-card-h: var(--sol-space-68);
      --sol-platform-card-gap: var(--sol-space-36);
      --sol-panel-w: calc(450 / 1920 * var(--sol-design-w));
      --sol-panel-row-h: calc(90 / 1920 * var(--sol-design-w));
      --sol-panel-title-fs: var(--fs-24);
      --sol-panel-title-lh: calc(34 / 1920 * var(--sol-design-w));
      --sol-panel-arrow: calc(18 / 1920 * var(--sol-design-w));
      --sol-panel-pad-left: calc(48 / 1920 * var(--sol-design-w));
      --sol-panel-pad-right: calc(61 / 1920 * var(--sol-design-w));
      --sol-panel-media-w: calc(360 / 1920 * var(--sol-design-w));
      --sol-panel-media-h: calc(184 / 1920 * var(--sol-design-w));
      --sol-panel-media-x: calc(45 / 1920 * var(--sol-design-w));
      --sol-panel-media-y: calc(24 / 1920 * var(--sol-design-w));
      --sol-panel-content-y: calc(28 / 1920 * var(--sol-design-w));
      --sol-panel-tags-w: calc(283 / 1920 * var(--sol-design-w));
      --sol-panel-tags-x: calc(84 / 1920 * var(--sol-design-w));
      --sol-panel-block-w: calc(327 / 1920 * var(--sol-design-w));
      --sol-panel-single-sensor-w: calc(366 / 1920 * var(--sol-design-w));
      --sol-panel-block-x: calc(36 / 1920 * var(--sol-design-w));
      --sol-panel-body-fs: var(--fs-14);
      --sol-panel-feature-fs: var(--fs-16);
      --sol-panel-body-lh: calc(24 / 1920 * var(--sol-design-w));
      --sol-panel-label-h: calc(24 / 1920 * var(--sol-design-w));
      --sol-panel-label-px: calc(8 / 1920 * var(--sol-design-w));
      --sol-panel-label-radius: calc(4 / 1920 * var(--sol-design-w));
      --sol-panel-tag-gap-x: calc(10 / 1920 * var(--sol-design-w));
      --sol-panel-item-gap: calc(4 / 1920 * var(--sol-design-w));
      --sol-panel-block-gap-lg: calc(24 / 1920 * var(--sol-design-w));
      --sol-panel-block-gap: calc(10 / 1920 * var(--sol-design-w));
      --sol-panel-body-bottom: calc(12 / 1920 * var(--sol-design-w));
      --sol-panel-bottom-fill-h: calc(29 / 1920 * var(--sol-design-w));
    }

    @media (min-width: 1081px) and (max-height: 800px) {
      .solution-page-html {
        --sol-panel-media-y: calc(10 / 1920 * var(--sol-design-w));
        --sol-panel-content-y: calc(10 / 1920 * var(--sol-design-w));
        --sol-panel-block-gap-lg: calc(10 / 1920 * var(--sol-design-w));
      }
    }

    body.solution-page {
      margin: 0;
      --solution-page-bg: #fff;
      --sol-modal-h: var(--amicro-viewport-h, 100dvh);
      --sol-modal-offset-y: 0px;
      background: var(--solution-page-bg);
      color: #fff;
      font-family: 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Microsoft YaHei', sans-serif;
      font-weight: 400;
      overflow-x: hidden;
    }

    @supports selector(body:has(> .header)) {
      body.solution-page:has(> .header:not(.hidden)) {
        --sol-modal-h: var(--amicro-viewport-h, 100dvh);
        --sol-modal-offset-y: 0px;
        --sol-panel-bottom-fill-h: 0px;
      }

      body.solution-page:has(> .header.hidden) {
        --sol-modal-h: var(--amicro-viewport-h, 100dvh);
        --sol-modal-offset-y: 0px;
      }
    }

    .sol-canvas {
      position: relative;
      width: 100%;
      margin: 0;
      background: var(--solution-page-bg);
      color: #fff;
      overflow-x: hidden;
    }
    .sol-canvas img { display: block; max-width: none; }

    /* ===== 通用：渐变文字（白→蓝） ===== */
    .sol-grad-text {
      background: linear-gradient(270deg, #125bce 0%, #ffffff 100%);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
      color: transparent;
    }

    /* ===== 通用：分区基底 ===== */
    .sec {
      position: relative;
      width: 100%;
      overflow: hidden;
    }
    .sol-canvas > * {
      isolation: isolate;
    }
    /* ============================================
       Section 1 — Hero (0 — 1080)
       ============================================ */
    .s-hero {
      height: var(--amicro-section-h);
      scroll-snap-align: start;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      width: 100%;
      position: relative;
      background:
        linear-gradient(180deg, rgba(3, 13, 27, 0.96) 0%, rgba(3, 13, 27, 0.3) 18%, rgba(1, 10, 22, 0) 38%),
        var(--sol-page-bg-image) center top / cover no-repeat,
        var(--solution-page-bg);
    }
    .s-hero .hero-ref {
      position: relative;
      width: min(calc(1376 / 1920 * var(--sol-design-w)), 100%);
      height: calc(626 / 1920 * var(--sol-design-w));
      flex-shrink: 0;
      margin-top: calc(-0.5 * var(--sol-space-50));
    }
    .s-hero .hero-ref .hero-ref-img {
      position: absolute;
      left: 50%;
      top: 0;
      width: calc(901 / 1920 * var(--sol-design-w));
      height: 100%;
      object-fit: contain;
      transform: translateX(-50%);
    }
    /* Legacy static platform layer is no longer rendered; keep hidden for compatibility. */
    .s-hero .hero-ref .hero-platform-img {
      display: none;
    }
    /* 设备卡片区域 */
    .equip-cards {
      display: flex; align-items: center; justify-content: center; gap: var(--sol-space-4);
      z-index: 4;
    }
    @media (min-width: 1081px) {
      .s-hero .equip-cards {
        transform: translateY(max(
          0px,
          calc(
            var(--header-height, 70px)
            + var(--sol-space-16)
            - 50dvh
            + (366.5 / 1920 * var(--sol-design-w))
          )
        ));
      }
    }
    .equip-sep {
      width: calc(48 / 1920 * var(--sol-design-w)); height: 1px;
      background: rgba(255,255,255,0.4);
      flex-shrink: 0;
    }
    .equip-card {
      position: relative;
      width: calc(140 / 1920 * var(--sol-design-w)); height: calc(132 / 1920 * var(--sol-design-w));
      cursor: pointer;
      flex-shrink: 0;
      overflow: visible;
    }
    .equip-card .ec-bg,
    .equip-card .ec-bg-hover {
      position: absolute; inset: 0;
      width: 100%; height: 100%;
      object-fit: fill;
      transition: opacity 0.3s;
      pointer-events: none;
    }
    .equip-card .ec-bg { opacity: 1; z-index: 0; }
    .equip-card .ec-bg-hover { opacity: 0; z-index: 1; }
    .equip-card:hover .ec-bg { opacity: 0; }
    .equip-card:hover .ec-bg-hover { opacity: 1; }
    .equip-card .ec-img {
      position: absolute;
      left: 50%; top: 50%;
      transform: translate(-50%, -50%);
      width: calc(80 / 1920 * var(--sol-design-w)); height: calc(80 / 1920 * var(--sol-design-w));
      object-fit: contain;
      z-index: 2;
      transition: transform 0.3s;
    }
    .equip-card:hover .ec-img { transform: translate(-50%, -50%) scale(1.08); }
    .equip-card .equip-name {
      position: absolute;
      left: 50%;
      bottom: calc(-20 / 1920 * var(--sol-design-w));
      transform: translateX(-50%);
      font-size: var(--sol-fs-14);
      line-height: calc(20 / 1920 * var(--sol-design-w));
      color: rgba(255,255,255,0.72);
      white-space: nowrap;
      transition: color 0.3s;
      z-index: 2;
    }
    .equip-card:hover .equip-name { color: #fff; }
    /* 顶部 562px 高的蓝色渐变条 (Rectangle 121) — 已移除 */
    /*
    .s-hero .top-fade {
      position: absolute; left: 0; top: 4.375rem;
      width: 120rem; height: 35.1875rem;
      background: linear-gradient(181deg, rgba(13,84,198,1) 0%, rgba(13,84,198,0) 60%);
      pointer-events: none;
    }
    */
    /* Group 177 162-高 渐变薄条 — 已移除 */
    /*
    .s-hero .top-bar {
      position: absolute; left: 0; top: 4.375rem;
      width: 120rem; height: 10.125rem;
      background: linear-gradient(182deg, rgba(13,84,198,1) 0%, rgba(13,84,198,0) 58%);
      pointer-events: none;
    }
    */
    .solution-float-tags {
      position: absolute;
      inset: 0;
      z-index: 3;
      pointer-events: none;
    }
    .solution-float-tag {
      position: absolute;
      width: var(--sol-float-frame-w);
      height: calc(192 / 1920 * var(--sol-design-w));
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: flex-start;
      filter: none;
      animation: solutionFloatTag 5.6s ease-in-out infinite;
      pointer-events: auto;
      cursor: pointer;
      outline: none;
    }
    .solution-float-tag--ai {
      left: calc((93 / 1920 * var(--sol-design-w)) - (var(--sol-float-frame-w) / 2));
      top: calc(190 / 1920 * var(--sol-design-w));
      animation-delay: -0.3s;
    }
    .solution-float-tag--soc {
      left: calc((247 / 1920 * var(--sol-design-w)) - (var(--sol-float-frame-w) / 2));
      top: calc(411 / 1920 * var(--sol-design-w));
      animation-delay: -1.4s;
    }
    .solution-float-tag--tool {
      right: calc((85 / 1920 * var(--sol-design-w)) - (var(--sol-float-frame-w) / 2));
      top: calc(205 / 1920 * var(--sol-design-w));
      animation-delay: -2.1s;
    }
    .solution-float-tag--sensor {
      right: calc((248 / 1920 * var(--sol-design-w)) - (var(--sol-float-frame-w) / 2));
      top: calc(415 / 1920 * var(--sol-design-w));
      animation-delay: -3.2s;
    }
    .solution-float-icon {
      position: relative;
      width: 11rem;
      height: 11rem;
      display: block;
      transform-style: preserve-3d;
    }
    .solution-float-icon::before {
      content: none;
    }
    .solution-float-icon::after,
    .solution-float-icon i,
    .solution-float-icon i::before,
    .solution-float-icon i::after {
      content: '';
      position: absolute;
      box-sizing: border-box;
    }
    .solution-float-icon--ai::after {
      left: 4.45rem;
      top: 2.95rem;
      width: 2.75rem;
      height: 2.75rem;
      border: 0.125rem solid rgba(108, 229, 255, 0.92);
      background:
        linear-gradient(135deg, rgba(28, 112, 255, 0.92), rgba(103, 236, 255, 0.72));
      box-shadow:
        0 -1.4rem 0 -0.4rem rgba(23, 108, 240, 0.9),
        1.55rem 0.9rem 0 -0.5rem rgba(22, 151, 250, 0.9),
        -1.55rem 0.9rem 0 -0.5rem rgba(31, 143, 255, 0.9),
        0 0 1.25rem rgba(54, 184, 255, 0.78);
      transform: rotate(45deg) skew(-6deg, -6deg);
    }
    .solution-float-icon--ai i {
      left: 5.35rem;
      top: 0.85rem;
      width: 0.85rem;
      height: 6rem;
      background: linear-gradient(180deg, rgba(92, 230, 255, 0), rgba(63, 181, 255, 0.8), rgba(92, 230, 255, 0));
      box-shadow:
        -2.1rem 1.1rem 0 -0.18rem rgba(63, 181, 255, 0.6),
        2.1rem 1.1rem 0 -0.18rem rgba(63, 181, 255, 0.6);
      transform: rotate(45deg);
    }
    .solution-float-icon--soc::after {
      left: 3.95rem;
      top: 2.9rem;
      width: 3rem;
      height: 3rem;
      border-radius: 0.45rem;
      border: 0.125rem solid rgba(141, 235, 255, 0.9);
      background: linear-gradient(145deg, rgba(21, 89, 219, 0.96), rgba(64, 219, 255, 0.78));
      box-shadow: 0 0 1rem rgba(48, 174, 255, 0.8), inset 0 0 1rem rgba(255, 255, 255, 0.26);
    }
    .solution-float-icon--soc i {
      left: 3.15rem;
      top: 2.1rem;
      width: 4.65rem;
      height: 4.65rem;
      border-radius: 0.75rem;
      border: 0.1rem solid rgba(58, 197, 255, 0.32);
      box-shadow:
        0 -0.75rem 0 -0.63rem #58d9ff,
        0 0.75rem 0 -0.63rem #58d9ff,
        -0.75rem 0 0 -0.63rem #58d9ff,
        0.75rem 0 0 -0.63rem #58d9ff;
    }
    .solution-float-icon--tool::after {
      left: 5rem;
      top: 1.95rem;
      width: 0.95rem;
      height: 4.4rem;
      border-radius: 0.5rem;
      background: linear-gradient(180deg, #7cf3ff, #1677ff);
      box-shadow:
        -2.2rem 1.15rem 0 -0.18rem #1697ff,
        2.2rem 1.15rem 0 -0.18rem #1697ff,
        0 0 1rem rgba(84, 220, 255, 0.7);
    }
    .solution-float-icon--tool i {
      left: 4.9rem;
      top: 1.45rem;
      width: 1.2rem;
      height: 1.2rem;
      border-radius: 50%;
      background: #6eeaff;
      box-shadow:
        -2.25rem 2.85rem 0 -0.08rem #32b9ff,
        2.25rem 2.85rem 0 -0.08rem #32b9ff,
        0 4.85rem 0 -0.12rem #147fff;
    }
    .solution-float-icon--sensor::after {
      left: 4.5rem;
      top: 2.25rem;
      width: 2rem;
      height: 4.7rem;
      transform: skewY(-17deg);
      border: 0.1rem solid rgba(98, 220, 255, 0.92);
      background: linear-gradient(145deg, rgba(22, 94, 220, 0.9), rgba(66, 217, 255, 0.42));
      box-shadow: 0 0 1rem rgba(47, 178, 255, 0.75);
    }
    .solution-float-icon--sensor i {
      left: 3.55rem;
      top: 3.5rem;
      width: 3.95rem;
      height: 1rem;
      border-radius: 999px;
      background: linear-gradient(90deg, rgba(27, 95, 214, 0.18), rgba(90, 232, 255, 0.86), rgba(27, 95, 214, 0.18));
      box-shadow: 0 1.2rem 0 -0.28rem rgba(76, 203, 255, 0.7);
    }
    .solution-float-icon img {
      position: absolute;
      left: 50%;
      top: 0;
      width: 11rem;
      height: 11rem;
      transform: translateX(-50%);
      object-fit: contain;
      filter: none;
      pointer-events: none;
      user-select: none;
    }
    .solution-float-icon::after,
    .solution-float-icon i,
    .solution-float-icon i::before,
    .solution-float-icon i::after {
      display: none;
    }
    .solution-float-line {
      position: absolute;
      left: 50%;
      bottom: 0;
      width: 100%;
      height: 2.875rem;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #6bd8ff;
      font-size: var(--sol-fs-10);
      line-height: 1;
      letter-spacing: 0;
      transform: translateX(-50%);
      transition:
        width 0.22s ease,
        height 0.22s ease,
        bottom 0.22s ease,
        background 0.22s ease,
        box-shadow 0.22s ease;
    }
    .solution-float-line::before,
    .solution-float-line::after {
      content: none;
    }
    .solution-float-line em {
      position: relative;
      min-width: 3.75rem;
      padding: 0;
      color: #77e7ff;
      font-style: normal;
      font-size: var(--sol-fs-14);
      white-space: nowrap;
      transition:
        color 0.22s ease,
        font-size 0.22s ease,
        text-shadow 0.22s ease;
    }
    .solution-float-line em::before,
    .solution-float-line em::after {
      content: none;
      position: absolute;
      top: 50%;
      width: 0;
      height: 0;
      transform: translateY(-50%);
      border-top: 0.25rem solid transparent;
      border-bottom: 0.25rem solid transparent;
    }
    .solution-float-detail {
      position: absolute;
      left: 50%;
      bottom: -1.8rem;
      width: 25rem;
      color: rgba(225, 239, 255, 0.5);
      font-size: var(--sol-fs-12);
      line-height: 1.25rem;
      text-align: center;
      white-space: nowrap;
      opacity: 0;
      pointer-events: none;
      transform: translate(-50%, 0.375rem);
      transition:
        opacity 0.22s ease,
        transform 0.22s ease;
    }
    .solution-float-tag:hover,
    .solution-float-tag:focus-visible {
      z-index: 5;
      animation-play-state: paused;
    }
    .solution-float-tag:hover .solution-float-line,
    .solution-float-tag:focus-visible .solution-float-line {
      bottom: -0.125rem;
      width: var(--sol-float-frame-w);
      height: var(--sol-float-frame-h);
      background: transparent;
      box-shadow: none;
      filter: drop-shadow(0 0.5rem 1rem rgba(0, 111, 255, 0.24));
    }
    .solution-float-tag:hover .solution-float-line::before,
    .solution-float-tag:focus-visible .solution-float-line::before,
    .solution-float-tag:hover .solution-float-line::after,
    .solution-float-tag:focus-visible .solution-float-line::after {
      content: '';
      position: absolute;
      left: 7%;
      right: 7%;
      height: 0.125rem;
      background: linear-gradient(90deg, rgba(48, 214, 255, 0), rgba(58, 160, 255, 0.42) 18%, rgba(101, 225, 255, 0.96) 50%, rgba(58, 160, 255, 0.42) 82%, rgba(48, 214, 255, 0));
      box-shadow:
        0 0 0.625rem rgba(80, 220, 255, 0.74),
        0 0 1.375rem rgba(18, 91, 206, 0.4);
    }
    .solution-float-tag:hover .solution-float-line::before,
    .solution-float-tag:focus-visible .solution-float-line::before {
      top: 0.375rem;
    }
    .solution-float-tag:hover .solution-float-line::after,
    .solution-float-tag:focus-visible .solution-float-line::after {
      bottom: 0.375rem;
    }
    .solution-float-tag:hover .solution-float-line em,
    .solution-float-tag:focus-visible .solution-float-line em {
      color: #46edf8;
      font-size: var(--sol-fs-24);
      line-height: 1.75rem;
      text-shadow: 0 0 1rem rgba(50, 221, 255, 0.8);
    }
    .solution-float-tag:hover .solution-float-line em::before,
    .solution-float-tag:focus-visible .solution-float-line em::before {
      content: '';
      left: -2.25rem;
      border-right: 0;
      border-left: 0.45rem solid #37e8f2;
    }
    .solution-float-tag:hover .solution-float-line em::after,
    .solution-float-tag:focus-visible .solution-float-line em::after {
      content: '';
      right: -2.25rem;
      border-left: 0;
      border-right: 0.45rem solid #37e8f2;
    }
    .solution-float-tag:hover .solution-float-detail,
    .solution-float-tag:focus-visible .solution-float-detail {
      opacity: 1;
      transform: translate(-50%, 0);
    }
    @keyframes solutionFloatTag {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-0.75rem); }
    }
    @media (prefers-reduced-motion: reduce) {
      .solution-float-tag { animation: none; }
    }
    /* 主标题 — 现在挂在 .hero-ref 底部 */
    .pill-group {
      position: absolute;
      left: 50%; bottom: 3.5417vw;
      transform: translateX(-50%);
      width: 15.4167vw;
      height: 5.7292vw;
    }
    .pill-group .main-title {
      position: absolute;
      left: 50%; top: 50%;
      transform: translate(-50%, -50%);
      width: 15vw;
      text-align: center;
      white-space: nowrap;
    }
    .main-title .t2 {
      background: linear-gradient(270deg, #125BCE 0%, #FFFFFF 100%);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
      color: transparent;
    }
    .main-title .t1 {
      font-size: var(--fs-48);
      line-height: 2.9167vw;
      color: #fff;
    }
    .main-title .t2 {
      font-size: var(--fs-36);
      line-height: 2.2917vw;
    }

    .s-hero-inner {
      width: calc(1920 / 1920 * var(--sol-design-w));
      height: 100%;
      min-height: calc(1080 / 1920 * var(--sol-design-w));
      position: relative;
      flex-shrink: 0;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }

    /* ============================================
       Section 2 — 全栈技术平台 (1080 — 1980)
       ============================================ */
    .s-platform {
      --sol-platform-copy-shift-y: 8dvh;
      height: var(--amicro-section-h);
      scroll-snap-align: start;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      width: 100%;
      position: relative;
      background: #000;
    }
    .s-platform .chip-bg {
      position: absolute; left: 50%; top: 50%;
      width: max(calc(1920 / 1920 * var(--sol-design-w)), var(--sol-design-w)); height: max(calc(1080 / 1920 * var(--sol-design-w)), 100%);
      object-fit: cover;
      object-position: center center;
      transform: translate(-50%, -50%);
      mix-blend-mode: normal;
      opacity: 1;
      pointer-events: none;
      z-index: 0;
    }
    .s-platform .text-block {
      position: absolute;
      left: 0;
      top: calc(50% - var(--sol-platform-copy-shift-y));
      transform: translateY(-50%);
      width: min(calc(600 / 1920 * var(--sol-design-w)), 100%);
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      z-index: 2;
    }
    .s-platform .text-block .h3 {
      font-size: var(--sol-fs-36);
      line-height: var(--sol-space-50);
      color: #fff;
      margin: 0 0 var(--sol-space-8);
      text-shadow: 0 0.1875rem 0.1875rem rgba(11,40,116,0.2);
      white-space: nowrap;
    }
    .s-platform .text-block .sol-platform-title-line,
    .s-platform .text-block .sol-platform-description-line {
      display: block;
    }
    .s-platform .text-block .sub {
      width: 22.125rem;
      font-size: var(--sol-fs-20);
      color: #fff;
      margin: 0 0 var(--sol-space-18);
      text-shadow: 0 0.1875rem 0.1875rem rgba(11,40,116,0.2);
      white-space: nowrap;
    }
    .s-platform .text-block .desc {
      width: 37.5rem;
      font-size: var(--sol-fs-16);
      line-height: var(--sol-space-30);
      color: #fff;
      opacity: 0.6;
      margin: 0;
      white-space: nowrap;
    }
    .s-platform .text-block .sol-platform-eyebrow {
      margin: 0 0 var(--sol-space-4);
      color: rgba(255, 255, 255, 0.6);
      font-size: var(--sol-fs-16);
      line-height: var(--sol-space-30);
    }
    .s-platform .text-block .pin {
      position: relative;
      display: block;
      width: 1.1875rem;
      height: var(--sol-space-12);
      margin-top: var(--sol-space-24);
      background: url('../images/home-title-triangle.png') center / contain no-repeat;
      pointer-events: none;
    }

    /* 核心芯片 + 3 个能力卡片：默认常驻，悬停显示能力说明 */
    .s-platform .platform-actions {
      --platform-actions-bottom: calc(120 / 1920 * var(--sol-design-w));
      --platform-card-w: calc((100% - var(--platform-card-gap) - var(--platform-card-gap) - var(--platform-card-gap)) / 4);
      --platform-card-h: var(--sol-platform-card-h);
      --platform-card-gap: var(--sol-platform-card-gap);
      --platform-detail-pad-y: calc(24 / 1920 * var(--sol-design-w));
      --platform-detail-pad-x: calc(24 / 1920 * var(--sol-design-w));
	      --platform-detail-font: var(--fs-14);
	      --platform-detail-line: calc(20 / 1920 * var(--sol-design-w));
	      --platform-detail-col-gap: calc(10 / 1920 * var(--sol-design-w));
	      --platform-detail-key-gap: calc(8 / 1920 * var(--sol-design-w));
	      --platform-detail-row-gap: calc(16 / 1920 * var(--sol-design-w));
	      --platform-hover-fill: linear-gradient(75deg, rgba(54,118,245,0.42) 0%, rgba(79,135,248,0.24) 42%, rgba(255,255,255,0) 68%), rgba(58, 98, 164, 0.46);
	      position: absolute;
      left: 0;
      right: 0;
      bottom: var(--platform-actions-bottom);
      width: 100%;
      display: flex;
      align-items: flex-end;
      gap: var(--platform-card-gap);
      z-index: 6;
    }
    .s-platform .core-chip {
      position: relative;
      width: var(--platform-card-w);
      height: var(--platform-card-h);
      background: rgba(255,255,255,0.025);
      border-radius: var(--sol-radius-6);
      cursor: pointer;
      color: #fff;
      flex-shrink: 0;
      isolation: isolate;
      transition: background 0.3s, transform 0.3s;
    }
    .s-platform .core-chip::before {
      content: '';
      position: absolute;
      inset: 0;
      border-radius: var(--sol-radius-6);
      padding: 1px;
      background: linear-gradient(180deg, rgba(255,255,255,0.5) 0%, rgba(255,255,255,0) 100%);
      -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
      -webkit-mask-composite: xor;
              mask-composite: exclude;
      pointer-events: none;
      z-index: 1;
    }
    .s-platform .core-chip::after {
      content: "";
      position: absolute;
      inset: 0;
      border-radius: inherit;
      background: linear-gradient(75deg, rgba(54,118,245,0.42) 0%, rgba(79,135,248,0.24) 42%, rgba(255,255,255,0) 68%);
      opacity: 0;
      pointer-events: none;
      z-index: 0;
    }
    .s-platform .core-chip__surface {
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: var(--platform-card-h);
      overflow: hidden;
      border-radius: inherit;
      background: transparent;
      box-shadow: none;
      z-index: 3;
    }
	    .s-platform .core-chip:hover .core-chip__surface,
	    .s-platform .core-chip:focus-visible .core-chip__surface {
	      border-radius: 0 0 var(--sol-radius-6) var(--sol-radius-6);
	      background: var(--platform-hover-fill);
	      box-shadow: none;
	    }
    .s-platform .core-chip:hover::before,
    .s-platform .core-chip:focus-visible::before {
      border-radius: 0 0 var(--sol-radius-6) var(--sol-radius-6);
    }
    .s-platform .core-chip:hover::after,
    .s-platform .core-chip:focus-visible::after {
      opacity: 1;
    }
    .s-platform .core-chip:hover,
    .s-platform .core-chip:focus-visible,
    .p-card:hover,
    .p-card:focus-visible {
      z-index: 30;
    }
    .s-platform .core-chip__icon {
      position: absolute;
      left: var(--sol-space-32);
      top: 50%;
      width: 1.6rem;
      height: 1.6rem;
      border: 0.1875rem solid rgba(255,255,255,0.95);
      border-radius: var(--sol-radius-4);
      box-sizing: border-box;
      z-index: 5;
      transform: translateY(-50%);
    }
    .s-platform .core-chip__icon::before {
      content: "";
      position: absolute;
      inset: 0.3125rem;
      border: 0.125rem solid #34ACFF;
      border-radius: 50%;
    }
    .s-platform .core-chip__icon::after {
      content: "";
      position: absolute;
      left: -0.45rem;
      right: -0.45rem;
      top: -0.45rem;
      bottom: -0.45rem;
      background:
        linear-gradient(#fff,#fff) 0 22% / 0.25rem 0.125rem no-repeat,
        linear-gradient(#fff,#fff) 0 50% / 0.25rem 0.125rem no-repeat,
        linear-gradient(#fff,#fff) 0 78% / 0.25rem 0.125rem no-repeat,
        linear-gradient(#fff,#fff) 100% 22% / 0.25rem 0.125rem no-repeat,
        linear-gradient(#fff,#fff) 100% 50% / 0.25rem 0.125rem no-repeat,
        linear-gradient(#fff,#fff) 100% 78% / 0.25rem 0.125rem no-repeat,
        linear-gradient(#fff,#fff) 22% 0 / 0.125rem 0.25rem no-repeat,
        linear-gradient(#fff,#fff) 50% 0 / 0.125rem 0.25rem no-repeat,
        linear-gradient(#fff,#fff) 78% 0 / 0.125rem 0.25rem no-repeat,
        linear-gradient(#fff,#fff) 22% 100% / 0.125rem 0.25rem no-repeat,
        linear-gradient(#fff,#fff) 50% 100% / 0.125rem 0.25rem no-repeat,
        linear-gradient(#fff,#fff) 78% 100% / 0.125rem 0.25rem no-repeat;
      pointer-events: none;
    }
    .s-platform .core-chip__label {
      position: absolute;
      left: var(--sol-space-80);
      top: 50%;
      font-size: var(--sol-fs-20);
      line-height: var(--sol-space-36);
      color: #fff;
      white-space: nowrap;
      pointer-events: none;
      z-index: 5;
      transform: translateY(-50%);
    }
    .platform-toggle {
      position: absolute;
      right: var(--sol-space-24);
      top: 50%;
      width: var(--sol-space-20);
      height: var(--sol-space-20);
      z-index: 5;
      pointer-events: none;
      opacity: 0.72;
      transform: translateY(-50%);
      transition: opacity 0.25s ease;
    }
    .platform-toggle::before,
    .platform-toggle::after {
      content: "";
      position: absolute;
      left: 50%;
      top: 50%;
      width: var(--sol-space-16);
      height: 1px;
      background: rgba(255,255,255,0.92);
      transform: translate(-50%, -50%);
      box-shadow: 0 0 0.5rem rgba(255,255,255,0.22);
    }
    .platform-toggle::after {
      transform: translate(-50%, -50%) rotate(90deg);
    }
    .core-chip:hover .platform-toggle,
    .core-chip:focus-visible .platform-toggle,
    .p-card:hover .platform-toggle,
    .p-card:focus-visible .platform-toggle {
      opacity: 1;
    }
    .core-chip:hover .platform-toggle::after,
    .core-chip:focus-visible .platform-toggle::after,
    .p-card:hover .platform-toggle::after,
    .p-card:focus-visible .platform-toggle::after {
      opacity: 0;
      transform: translate(-50%, -50%) rotate(90deg) scaleX(0.2);
    }
    .platform-connector {
      --connector-w: calc(320 / 1920 * var(--sol-design-w));
      --connector-start-gap: var(--sol-space-8);
      --connector-bottom: calc(var(--platform-card-h) / 2);
      --connector-target-y: calc(740 / 1080 * var(--amicro-section-h));
      --connector-h: max(calc(48 / 1920 * var(--sol-design-w)), calc(var(--amicro-section-h) - var(--sol-space-75) - var(--connector-bottom) - var(--connector-target-y)));
      position: absolute;
      left: calc(100% + var(--connector-start-gap));
      bottom: var(--connector-bottom);
      width: max(calc(90 / 1920 * var(--sol-design-w)), calc(var(--connector-w) - var(--sol-space-24) - var(--connector-start-gap)));
      height: var(--connector-h);
      z-index: 24;
      pointer-events: none;
      opacity: 0;
      transform: translateY(0.375rem);
      transition: opacity 0.25s ease, transform 0.25s ease;
      filter: none;
    }
    .platform-connector svg {
      width: 100%;
      height: 100%;
      display: block;
      overflow: visible;
    }
    .platform-connector path {
      fill: none;
      stroke: rgba(255,255,255,0.72);
      stroke-width: 1;
      vector-effect: non-scaling-stroke;
      stroke-linecap: round;
      stroke-linejoin: round;
      stroke-dasharray: 2 7;
    }
    .platform-connector--core {
      --connector-w: calc(955 / 1920 * var(--sol-design-w));
      --connector-target-y: calc(648 / 1080 * var(--amicro-section-h));
    }
    .platform-connector--1 {
      --connector-w: calc(430 / 1920 * var(--sol-design-w));
      --connector-target-y: calc(760 / 1080 * var(--amicro-section-h));
    }
    .platform-connector--2 {
      --connector-w: calc(290 / 1920 * var(--sol-design-w));
      --connector-target-y: calc(734 / 1080 * var(--amicro-section-h));
    }
    .platform-connector--3 {
      --connector-w: calc(220 / 1920 * var(--sol-design-w));
      --connector-target-y: calc(696 / 1080 * var(--amicro-section-h));
    }
    .core-chip:hover .platform-connector,
    .core-chip:focus-visible .platform-connector,
    .p-card:hover .platform-connector,
    .p-card:focus-visible .platform-connector {
      opacity: 0.88;
      transform: translateY(0);
    }
    .s-platform .core-chip__detail {
      position: absolute;
      left: 0;
      bottom: calc(100% - 1px);
      width: 100%;
      height: auto;
      padding: var(--platform-detail-pad-y) var(--platform-detail-pad-x);
      box-sizing: border-box;
      border: 1px solid rgba(255,255,255,0.22);
      border-bottom: 0;
      border-radius: var(--sol-radius-6) var(--sol-radius-6) 0 0;
	      overflow: hidden;
	      background: var(--platform-hover-fill);
      box-shadow: 0 1rem 2rem rgba(0,0,0,0.22);
      z-index: 20;
      opacity: 0;
      transform: translateY(0.375rem);
      pointer-events: none;
      transition: opacity 0.25s ease, transform 0.25s ease;
      backdrop-filter: blur(0.35rem);
    }
    .s-platform .core-chip:hover .core-chip__detail,
    .s-platform .core-chip:focus-visible .core-chip__detail {
      opacity: 1;
      transform: translateY(0);
    }
    .p-card__detail {
      position: absolute;
      left: 0;
      bottom: calc(100% - 1px);
      width: 100%;
      height: auto;
      padding: var(--platform-detail-pad-y) var(--platform-detail-pad-x);
      box-sizing: border-box;
      border: 1px solid rgba(255,255,255,0.22);
      border-bottom: 0;
      border-radius: var(--sol-radius-6) var(--sol-radius-6) 0 0;
	      overflow: hidden;
	      background: var(--platform-hover-fill);
      box-shadow: 0 1rem 2rem rgba(0,0,0,0.22);
      opacity: 0;
      transform: translateY(0.375rem);
      pointer-events: none;
      transition: opacity 0.25s ease, transform 0.25s ease;
      backdrop-filter: blur(0.35rem);
      z-index: 20;
    }
    .s-platform .core-chip__detail::before,
    .p-card__detail::before {
      content: "";
      position: absolute;
      left: -3.9375rem;
      top: 4.125rem;
      width: 14.1875rem;
      height: 3.9375rem;
      background: linear-gradient(65deg, rgba(255,255,255,0.55) 14%, rgba(255,255,255,0) 100%);
      filter: blur(6.25rem);
      pointer-events: none;
    }
    .s-platform .core-chip__detail::after,
    .p-card__detail::after {
      content: "";
      position: absolute;
      left: 1px;
      right: 1px;
      bottom: 0;
      height: 1px;
      background: rgba(255,255,255,0.5);
      pointer-events: none;
    }
    .p-card:hover .p-card__detail {
      opacity: 1;
      transform: translateY(0);
    }
    .p-card:focus-visible .p-card__detail {
      opacity: 1;
      transform: translateY(0);
    }
    .p-card__detail .detail-row,
    .s-platform .core-chip__detail .detail-row {
      position: relative;
      z-index: 1;
      display: grid;
      row-gap: var(--platform-detail-key-gap);
      min-height: 0;
      color: #fff;
      font-size: var(--platform-detail-font);
      line-height: var(--platform-detail-line);
      text-align: left;
    }
    .p-card__detail .detail-row + .detail-row,
    .s-platform .core-chip__detail .detail-row + .detail-row {
      margin-top: var(--platform-detail-row-gap);
    }
    .p-card__detail .detail-key,
    .s-platform .core-chip__detail .detail-key {
      display: block;
      color: #fff;
      font-size: var(--fs-16);
      line-height: calc(22 / 1920 * var(--sol-design-w));
    }
    .p-card__detail .detail-value,
    .s-platform .core-chip__detail .detail-value {
      display: block;
      color: rgba(255, 255, 255, 0.7);
      font-size: var(--platform-detail-font);
      line-height: var(--platform-detail-line);
      word-break: normal;
      overflow-wrap: break-word;
    }
    .s-platform .p-cards {
      position: relative;
      display: flex;
      gap: var(--platform-card-gap);
      opacity: 1;
      pointer-events: auto;
      transition: opacity 0.3s ease;
      flex: 1 1 auto;
      min-width: 0;
    }
    .p-card {
      position: relative;
      width: calc((100% - var(--platform-card-gap) - var(--platform-card-gap)) / 3); height: var(--platform-card-h);
      background: rgba(255,255,255,0.025);
      border-radius: var(--sol-radius-6);
      cursor: pointer;
      transition: background 0.3s, transform 0.3s;
      box-sizing: border-box;
      flex-shrink: 0;
      z-index: 1;
      isolation: isolate;
    }
    .p-card::before {
      content: ''; position: absolute; inset: 0;
      border-radius: var(--sol-radius-6);
      padding: 1px;
      background: linear-gradient(180deg, rgba(255,255,255,0.5) 0%, rgba(255,255,255,0) 100%);
      -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
      -webkit-mask-composite: xor;
              mask-composite: exclude;
      pointer-events: none;
      z-index: 1;
    }
    .p-card::after {
      content: "";
      position: absolute;
      inset: 0;
      border-radius: inherit;
      background: linear-gradient(75deg, rgba(54,118,245,0.42) 0%, rgba(79,135,248,0.24) 42%, rgba(255,255,255,0) 68%);
      opacity: 0;
      pointer-events: none;
      z-index: 0;
    }
	    .p-card:hover,
	    .p-card:focus-visible {
	      border-radius: 0 0 var(--sol-radius-6) var(--sol-radius-6);
	      background: var(--platform-hover-fill);
	    }
    .p-card:hover::before,
    .p-card:focus-visible::before,
    .p-card:hover::after,
    .p-card:focus-visible::after {
      border-radius: 0 0 var(--sol-radius-6) var(--sol-radius-6);
    }
    .p-card:hover::after,
    .p-card:focus-visible::after { opacity: 1; }
    .p-card .icon { position: absolute; left: var(--sol-space-24); top: 50%; width: var(--sol-space-24); height: var(--sol-space-24); z-index: 5; transform: translateY(-50%); }
    .p-card .name { position: absolute; left: 3.875rem; top: 50%; font-size: var(--sol-fs-20); line-height: var(--sol-space-36); color: #fff; white-space: nowrap; z-index: 5; transform: translateY(-50%); }
    .p-card .arrow { position: absolute; right: var(--sol-space-24); top: 1.625rem; width: var(--sol-space-16); height: var(--sol-space-16); opacity: 0.6; z-index: 5; }
    /* k1/k2/k3 顺序由 .p-cards flex 决定，无需绝对坐标 */

    /* 中部 668×366 虚线轨迹 (574, 380) -> abs (574, 380) */
    .s-platform .trail {
      position: absolute; left: 35.875rem; top: 23.75rem;
      width: 41.75rem; height: 22.875rem;
      pointer-events: none;
    }
    .s-platform .trail svg {
      width: 100%; height: 100%; display: block;
    }
    .s-platform .trail-dot {
      position: absolute; left: 35.625rem; top: 46.375rem;
      width: 0.5rem; height: 0.5rem;
      border-radius: 50%;
      background: #fff;
      box-shadow: 0 0 0.75rem rgba(255,255,255,0.8);
    }
    .s-platform-inner {
      width: calc(1412 / 1920 * var(--sol-design-w));
      height: 100%;
      margin-inline: auto;
      position: relative;
      flex-shrink: 0;
      z-index: 1;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      align-items: flex-start;
      box-sizing: border-box;
      padding: var(--sol-space-240) 0 var(--sol-space-136);
    }

    /* ============================================
       Section 3 — 解决方案: 简洁背景图区(对齐 Vue)
       ============================================ */
    .s-solutions {
      width: 100%;
      height: calc(368 / 1920 * var(--sol-design-w));
      margin-top: 0;
      padding-top: 0;
      box-sizing: border-box;
      position: relative;
      scroll-snap-align: start;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      background:
        radial-gradient(calc(1179 / 1920 * var(--sol-design-w)) calc(850 / 1920 * var(--sol-design-w)) at -5% 50%, rgba(255,255,255,0.28) 0%, rgba(255,255,255,0.08) 28%, rgba(255,255,255,0) 62%),
        radial-gradient(calc(1343 / 1920 * var(--sol-design-w)) calc(610 / 1920 * var(--sol-design-w)) at -16% 122%, rgba(18,92,207,0.95) 0%, rgba(18,92,207,0.18) 30%, rgba(18,92,207,0) 70%),
        radial-gradient(calc(1343 / 1920 * var(--sol-design-w)) calc(610 / 1920 * var(--sol-design-w)) at 135% -134%, rgba(10,19,46,0.92) 0%, rgba(10,19,46,0.24) 30%, rgba(18,92,207,0) 70%),
        #1849A0;
    }
    .s-solutions::before,
    .s-solutions::after {
      content: '';
      position: absolute;
      left: 0;
      width: 100%;
      pointer-events: none;
      z-index: 0;
    }
    .s-solutions::before {
      top: 0;
      height: 1px;
      background: #1849A0;
    }
    .s-solutions::after {
      bottom: -1px;
      height: 1px;
      background: #1849A0;
    }
    .s-solutions__copy {
      position: relative;
      z-index: 1;
      width: calc(588 / 1920 * var(--sol-design-w));
      text-align: center;
      color: #fff;
    }
    .s-solutions__title {
      margin: 0;
      font-size: var(--sol-fs-36);
      line-height: calc(50 / 1920 * var(--sol-design-w));
      font-weight: 400;
      letter-spacing: 0;
      text-shadow: 0 0.1875rem 0.1875rem rgba(11,40,116,0.2);
      white-space: nowrap;
    }
    .s-solutions__subtitle {
      margin: calc(8 / 1920 * var(--sol-design-w)) 0 0;
      font-size: var(--sol-fs-20);
      line-height: calc(28 / 1920 * var(--sol-design-w));
      color: #fff;
      letter-spacing: 0.04em;
    }
    .s-solutions__pin {
      display: block;
      width: calc(24 / 1920 * var(--sol-design-w));
      height: calc(34 / 1920 * var(--sol-design-w));
      margin: calc(8 / 1920 * var(--sol-design-w)) auto 0;
      background: url('../images/home-title-triangle.png') center bottom / 100% auto no-repeat;
      pointer-events: none;
    }

    .s-solutions--ecosystem {
      height: var(--amicro-section-h);
      min-height: calc(1080 / 1920 * var(--sol-design-w));
      align-items: center;
      justify-content: center;
      background: #020916;
    }
    .s-solutions--ecosystem::before,
    .s-solutions--ecosystem::after {
      content: none;
    }
    .s-solutions__ecosystem-bg {
      position: absolute;
      left: 50%;
      top: 50%;
      width: max(calc(1920 / 1920 * var(--sol-design-w)), var(--sol-design-w));
      height: max(calc(1080 / 1920 * var(--sol-design-w)), 100%);
      object-fit: cover;
      object-position: center center;
      transform: translate(-50%, -50%);
      pointer-events: none;
      user-select: none;
      z-index: 0;
    }
    .s-solutions__ecosystem-inner {
      position: relative;
      width: calc(1920 / 1920 * var(--sol-design-w));
      height: calc(1080 / 1920 * var(--sol-design-w));
      flex-shrink: 0;
      z-index: 1;
    }
    .solution-eco-title {
      position: absolute;
      left: 50%;
      top: calc(80 / 1920 * var(--sol-design-w));
      width: calc(416 / 1920 * var(--sol-design-w));
      text-align: center;
      color: #fff;
      transform: translateX(-50%);
      pointer-events: none;
    }
    .solution-eco-title h2 {
      margin: 0;
      font-size: var(--sol-fs-48);
      font-weight: 400;
      line-height: calc(64 / 1920 * var(--sol-design-w));
      letter-spacing: 0;
      text-shadow: 0 0.1875rem 0.5rem rgba(0,0,0,0.22);
    }
    .solution-eco-title p {
      margin: var(--sol-space-18) 0 0;
      font-size: var(--sol-fs-28);
      font-weight: 400;
      line-height: calc(40 / 1920 * var(--sol-design-w));
      letter-spacing: 0.04em;
      text-shadow: 0 0.1875rem 0.5rem rgba(0,0,0,0.2);
    }
    .solution-eco-labels {
      position: absolute;
      inset: 0;
      pointer-events: none;
    }
    .solution-eco-label {
      position: absolute;
      height: var(--sol-space-68);
      display: inline-flex;
      align-items: center;
      gap: var(--sol-space-14);
      padding: 0 var(--sol-space-28);
      border: 1px solid rgba(130,195,255,0.38);
      border-radius: var(--sol-radius-10);
      background: rgba(33,64,112,0.42);
      color: rgba(255,255,255,0.9);
      font-size: var(--sol-fs-20);
      line-height: 1;
      white-space: nowrap;
      box-shadow:
        0 0.75rem 1.75rem rgba(16,65,151,0.18),
        inset 0 1px 0 rgba(255,255,255,0.12);
      backdrop-filter: blur(0.75rem);
      -webkit-backdrop-filter: blur(0.75rem);
      pointer-events: auto;
      outline: none;
      transition: opacity 0.25s ease, background 0.25s ease, border-color 0.25s ease;
    }
    .solution-eco-label:hover,
    .solution-eco-label:focus,
    .solution-eco-label:focus-visible {
      z-index: 8;
      background: rgba(60,105,170,0.58);
      border-color: rgba(139,212,255,0.64);
    }
    .solution-eco-labels:has(.solution-eco-label:hover) .solution-eco-label:not(:hover),
    .solution-eco-labels:has(.solution-eco-label:focus-visible) .solution-eco-label:not(:focus-visible) {
      opacity: 0.42;
    }
    .solution-eco-label--hardware {
      left: 5.625rem;
      top: 24.25rem;
      min-width: 11.25rem;
    }
    .solution-eco-label--software {
      left: 85.25rem;
      top: 24.125rem;
      min-width: 15.625rem;
    }
    .solution-eco-label--algorithm {
      left: 85.25rem;
      top: 33.625rem;
      min-width: 15.625rem;
    }
    .solution-eco-label__icon {
      width: 1.5rem;
      height: 1.5rem;
      object-fit: contain;
      flex: 0 0 auto;
    }
    .solution-eco-label__arrow {
      position: absolute;
      top: 50%;
      width: 1.75rem;
      height: 1.75rem;
      object-fit: contain;
      transform: translateY(-50%);
      filter: drop-shadow(0 0 0.375rem rgba(70,175,255,0.55));
      pointer-events: none;
      z-index: 1;
      transition: opacity 0.2s ease;
    }
    .solution-eco-label__arrow--right {
      left: calc(100% + 0.25rem);
    }
    .solution-eco-label__arrow--left {
      right: calc(100% + 0.25rem);
      transform: translateY(-50%) rotate(180deg);
    }
    .solution-eco-popup {
      position: absolute;
      top: 50%;
      display: block;
      opacity: 0;
      visibility: hidden;
      pointer-events: none;
      transform: translateY(-50%);
      transition: opacity 0.25s ease, visibility 0.25s ease;
      z-index: 6;
      cursor: default;
    }
    .solution-eco-popup img {
      display: block;
      width: 100%;
      height: 100%;
      object-fit: contain;
      user-select: none;
      pointer-events: none;
    }
    .solution-eco-label--hardware .solution-eco-popup {
      left: -5.625rem;
      width: 37.5rem;
      height: 14rem;
    }
    .solution-eco-label--software .solution-eco-popup,
    .solution-eco-label--algorithm .solution-eco-popup {
      left: 0;
      width: 25.5rem;
      height: 14rem;
    }
    .solution-eco-label:hover .solution-eco-popup,
    .solution-eco-label:focus .solution-eco-popup,
    .solution-eco-label:focus-visible .solution-eco-popup,
    .solution-eco-label:focus-within .solution-eco-popup,
    .solution-eco-label.is-hover .solution-eco-popup {
      opacity: 1;
      visibility: visible;
    }
    .solution-eco-label:hover .solution-eco-label__arrow,
    .solution-eco-label:focus .solution-eco-label__arrow,
    .solution-eco-label:focus-visible .solution-eco-label__arrow {
      opacity: 0;
    }

    .s-solutions-inner { width: 100%; height: calc(368 / 1920 * var(--sol-design-w)); position: relative; flex-shrink: 0; }

    /* ============================================
       Section 4 — 模态(planBg + 渐变底 + CTA + RightPanel)
       镜像 Vue Solution/index.vue .s-modal 与 RightPanel.vue
       ============================================ */
    .s-modal {
      --sol-modal-media-w: calc(100% - var(--sol-panel-w));
      --sol-modal-media-h: min(100%, calc(826.875 / 1920 * var(--sol-design-w)));
      --sol-modal-fill-h: max(0px, calc(var(--amicro-viewport-h, 100dvh) - var(--sol-modal-media-h)));
      --sol-modal-white-h: min(calc(180 / 1920 * var(--sol-design-w)), var(--sol-modal-media-h));
      width: 100%;
      height: var(--amicro-viewport-h, 100dvh);
      min-height: var(--amicro-viewport-h, 100dvh);
      position: relative;
      scroll-snap-align: start;
      display: flex;
      align-items: stretch;
      justify-content: center;
      overflow: hidden;
      margin-bottom: calc(64 / 1920 * var(--sol-design-w));
      background: var(--solution-page-bg);
      -webkit-mask-image: none;
      mask-image: none;
    }
    .s-modal-inner {
      width: 100%;
      height: 100%;
      position: relative;
      margin: 0;
      flex-shrink: 0;
      display: flex;
      justify-content: flex-end;
      align-items: flex-start;
      overflow: visible;
      z-index: 1;
    }
    /* Video + fallback image fill the entire space below the blue strip, no black bars */
    .s-modal .solution-bg-img {
      position: absolute;
      left: 0;
      top: calc(var(--sol-modal-offset-y) + var(--sol-panel-row-h));
      width: var(--sol-modal-media-w);
      height: calc(100% - var(--sol-modal-offset-y) - var(--sol-panel-row-h));
      transform: none;
      object-fit: cover;
      display: block;
      z-index: 1;
      pointer-events: none;
    }
    .s-modal .solution-bg-video {
      position: absolute;
      left: 0;
      top: calc(var(--sol-modal-offset-y) + var(--sol-panel-row-h));
      width: var(--sol-modal-media-w);
      height: calc(100% - var(--sol-modal-offset-y) - var(--sol-panel-row-h));
      transform: none;
      object-fit: cover;
      object-position: center center;
      display: block;
      z-index: 2;
      background: transparent;
      pointer-events: none;
    }
    html[data-mobile] body.solution-page .s-modal .solution-bg-video { display: none !important; }
    html[data-mobile] body.solution-page .s-modal .solution-bg-video { display: none !important; }
    .s-modal .modal-bottom-blue,
    .s-modal .modal-bottom-white,
    .s-modal .modal-bottom-black {
      position: absolute;
      left: 0;
      right: auto;
      bottom: 0;
      width: var(--sol-modal-media-w);
      z-index: 6;
      pointer-events: none;
    }
    /* Blue area: fixed height matching right-panel first tab row, text aligns with "多模态方案" */
    .s-modal .modal-bottom-blue {
      top: var(--sol-modal-offset-y);
      bottom: auto;
      height: var(--sol-panel-row-h);
      display: flex;
      align-items: center;
      justify-content: flex-start;
      box-sizing: border-box;
      padding: 0 var(--sol-panel-pad-right) 0 var(--sol-panel-pad-left);
      overflow: visible;
      background:
        radial-gradient(calc(1179 / 1920 * var(--sol-design-w)) calc(850 / 1920 * var(--sol-design-w)) at -5% 50%, rgba(255,255,255,0.28) 0%, rgba(255,255,255,0.08) 28%, rgba(255,255,255,0) 62%),
        radial-gradient(calc(1343 / 1920 * var(--sol-design-w)) calc(610 / 1920 * var(--sol-design-w)) at -16% 122%, rgba(18,92,207,0.95) 0%, rgba(18,92,207,0.18) 30%, rgba(18,92,207,0) 70%),
        radial-gradient(calc(1343 / 1920 * var(--sol-design-w)) calc(610 / 1920 * var(--sol-design-w)) at 135% -134%, rgba(10,19,46,0.92) 0%, rgba(10,19,46,0.24) 30%, rgba(18,92,207,0) 70%),
        #1849A0;
      pointer-events: none;
    }
    /* White gradient overlay at bottom of the full-height video */
    .s-modal .modal-bottom-white {
      bottom: 0;
      height: calc(180 / 1920 * var(--sol-design-w));
      z-index: 7;
      background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.84) 68%, #fff 100%);
    }
    .s-modal .modal-bottom-blue .s-solutions__copy {
      width: auto;
      max-width: 100%;
      text-align: left;
    }
    .s-modal .modal-bottom-blue .s-solutions__title {
      font-size: var(--sol-fs-24);
      line-height: 1.2;
    }
    .s-modal .modal-bottom-blue .s-solutions__subtitle {
      position: absolute;
      top: calc(100% + calc(52 / 1920 * var(--sol-design-w)));
      left: 0;
      width: max-content;
      max-width: 100%;
      font-size: var(--sol-fs-14);
      line-height: 1.2;
      margin: 0;
      text-align: left;
      text-shadow: 0 2px 8px rgba(0, 12, 40, 0.42);
    }
    .s-modal .modal-bottom-black { display: none; }

    .s-modal .solution-switch-dots {
      position: absolute;
      bottom: calc(120 / 1920 * var(--sol-design-w));
      right: calc(var(--sol-panel-w) + calc(40 / 1920 * var(--sol-design-w)));
      z-index: 7;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: calc(10 / 1920 * var(--sol-design-w));
      pointer-events: none;
    }
    .s-modal .solution-switch-dot {
      display: block;
      width: calc(10 / 1920 * var(--sol-design-w));
      height: calc(10 / 1920 * var(--sol-design-w));
      border-radius: 50%;
      background: #fff;
      box-shadow: 0 0 10px rgba(255, 255, 255, 0.45);
      opacity: 0.38;
      transition: opacity 0.2s ease;
    }
    .s-modal .s-modal-inner:has(.solution-drawer-item[data-tab-index="0"].is-active) .solution-switch-dot[data-tab-index="0"],
    .s-modal .s-modal-inner:has(.solution-drawer-item[data-tab-index="1"].is-active) .solution-switch-dot[data-tab-index="1"],
    .s-modal .s-modal-inner:has(.solution-drawer-item[data-tab-index="2"].is-active) .solution-switch-dot[data-tab-index="2"] {
      opacity: 1;
    }

    /* ===== RightPanel(移植 Vue RightPanel.vue) ===== */
    .s-modal .right-panel {
      position: relative;
      width: var(--sol-panel-w);
      height: var(--sol-modal-h);
      min-height: var(--sol-modal-h);
      margin-top: var(--sol-modal-offset-y);
      align-self: flex-start;
      background: #fff;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      z-index: 8;
    }
    .s-modal .right-panel::after {
      content: "";
      flex: 0 0 var(--sol-panel-bottom-fill-h);
      min-height: var(--sol-panel-bottom-fill-h);
      background: #fff;
      pointer-events: none;
    }
    .s-modal .solution-drawer-item {
      flex: 0 0 auto;
      min-height: 0;
      border-top: 1px solid #DCE6F4;
      background: #fff;
    }
    .s-modal .solution-drawer-item.is-active {
      flex: 1 1 auto;
      display: flex;
      flex-direction: column;
      min-height: 0;
    }
    .s-modal .solution-drawer-item:first-child { border-top: 0; }
    .s-modal .drawer-toggle {
      width: 100%; height: var(--sol-panel-row-h);
      flex: 0 0 var(--sol-panel-row-h);
      border: 0;
      padding: 0 var(--sol-panel-pad-right) 0 var(--sol-panel-pad-left);
      background: #fff;
      color: #050C3E;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font: inherit;
      text-align: left;
      box-sizing: border-box;
      transition: color 0.22s ease, background-color 0.22s ease;
    }
    .s-modal .solution-drawer-item.is-active .drawer-toggle {
      background-color: #488DE2;
      background-image: linear-gradient(145deg, rgba(24, 73, 160, 0) 0%, #1849A0 100%);
      color: #fff;
    }
    .s-modal .drawer-toggle .name { font-size: var(--sol-panel-title-fs); line-height: var(--sol-panel-title-lh); white-space: nowrap; }
    .s-modal .drawer-toggle .arrow {
      width: var(--sol-panel-arrow); height: var(--sol-panel-arrow);
      flex-shrink: 0;
      opacity: 0.3;
      transition: transform 0.24s ease, opacity 0.24s ease;
    }
    .s-modal .solution-drawer-item.is-active .drawer-toggle .arrow {
      opacity: 1;
      transform: rotate(90deg);
    }
    .s-modal .drawer-body {
      display: grid;
      grid-template-rows: 0fr;
      min-height: 0;
      overflow: hidden;
      visibility: hidden;
      pointer-events: none;
      contain: layout paint;
      transition: none;
    }
    .s-modal .solution-drawer-item.is-active .drawer-body {
      flex: 1 1 auto;
      grid-template-rows: 1fr;
      visibility: visible;
      pointer-events: auto;
    }
    .s-modal .drawer-body-inner {
      min-height: 0;
      overflow-x: hidden;
      overflow-y: auto;
      padding-bottom: 0;
      background: #fff;
      transform: translateZ(0);
    }
    .s-modal .solution-drawer-item.is-active .drawer-body-inner {
      min-height: 100%;
      padding-bottom: var(--sol-panel-body-bottom);
    }
    .s-modal .right-panel .tab-multi {
      position: relative;
      width: 100%; height: var(--sol-panel-row-h);
      background-color: #488DE2;
      background-image: linear-gradient(145deg, rgba(24, 73, 160, 0) 0%, #1849A0 100%);
      cursor: pointer;
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 var(--sol-panel-pad-right) 0 var(--sol-panel-pad-left);
      box-sizing: border-box;
    }
    .s-modal .right-panel .tab-multi .name { font-size: var(--sol-panel-title-fs); line-height: var(--sol-panel-title-lh); color: #fff; white-space: nowrap; }
    .s-modal .right-panel .tab-multi .arrow { width: var(--sol-panel-arrow); height: var(--sol-panel-arrow); color: #fff; flex-shrink: 0; }

    .s-modal .right-panel .module-box {
      position: relative;
      width: var(--sol-panel-media-w); height: var(--sol-panel-media-h);
      margin: var(--sol-panel-media-y) 0 0 var(--sol-panel-media-x);
      border-radius: var(--sol-radius-7);
      overflow: hidden;
      flex-shrink: 0;
    }
    .s-modal .right-panel .module-box .img {
      position: absolute;
      left: 0;
      top: 0;
      width: var(--sol-panel-media-w);
      height: var(--sol-panel-media-h);
      object-fit: cover;
      object-position: center center;
      opacity: 0.9;
      border-radius: inherit;
    }
    .s-modal .right-panel .module-box::before,
    .s-modal .right-panel .module-box::after {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      z-index: 1;
    }
    .s-modal .right-panel .module-box::before {
      bottom: auto;
      height: calc(36 / 184 * 100%);
      background: linear-gradient(0deg, rgba(255, 255, 255, 0) 0%, #fff 100%);
    }
    .s-modal .right-panel .module-box::after {
      background:
        linear-gradient(90deg, #fff 0%, rgba(255, 255, 255, 0) 100%) left top / calc(41 / 360 * 100%) 100% no-repeat,
        linear-gradient(270deg, #fff 0%, rgba(255, 255, 255, 0) 100%) right top / calc(40 / 360 * 100%) 100% no-repeat;
    }
    .s-modal .right-panel .module-box .module-edge-rect {
      display: none;
    }

    .s-modal .right-panel .multi-content {
      position: relative;
      width: 100%;
      margin-top: var(--sol-panel-content-y);
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      color: #050C3E;
      flex-shrink: 0;
    }
    .s-modal .right-panel .multi-content .tags {
      width: var(--sol-panel-tags-w);
      margin: 0 0 0 var(--sol-panel-tags-x);
      display: block;
      font-size: var(--sol-panel-feature-fs);
      line-height: var(--sol-panel-body-lh);
      color: #050C3E;
      opacity: 0.8;
      text-align: center;
      white-space: nowrap;
    }
    .s-modal .right-panel .multi-content .tags .feature-tag {
      display: inline-flex;
      align-items: center;
      white-space: nowrap;
    }
    .s-modal .right-panel .multi-content .tags .feature-tag-separator {
      display: inline-block;
      margin: 0 var(--sol-panel-tag-gap-x);
      color: currentColor;
    }
    .s-modal .right-panel .multi-content .tags .feature-line-break { display: block; }
    .s-modal .right-panel .multi-content .block {
      position: relative;
      width: var(--sol-panel-block-w);
      margin-left: var(--sol-panel-block-x);
    }
    .s-modal .right-panel .multi-content .block .label {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: var(--sol-panel-label-h);
      padding: 0 var(--sol-panel-label-px);
      background: #C3DCFF;
      border-radius: var(--sol-panel-label-radius);
      font-size: var(--sol-panel-body-fs);
      line-height: calc(20 / 1920 * var(--sol-design-w));
      color: rgba(5, 12, 62, 0.5);
      white-space: nowrap;
    }
    .s-modal .right-panel .multi-content .block .items {
      margin-top: var(--sol-panel-item-gap);
      width: 100%;
      box-sizing: border-box;
      font-size: var(--sol-panel-body-fs);
      line-height: var(--sol-panel-body-lh);
      opacity: 0.5;
      color: #050C3E;
      white-space: normal;
    }
    .s-modal .right-panel .multi-content .block .items .spec-line {
      display: inline-block;
      white-space: nowrap;
    }
    .s-modal .right-panel .solution-drawer-item:nth-child(2) .multi-content .b2 {
      width: var(--sol-panel-single-sensor-w);
    }
    .s-modal .right-panel .multi-content .b1 { margin-top: var(--sol-panel-block-gap-lg); }
    .s-modal .right-panel .multi-content .b2 { margin-top: var(--sol-panel-block-gap); }
    .s-modal .right-panel .multi-content .b3 { margin-top: var(--sol-panel-block-gap); }
    .s-modal .right-panel .multi-content .scenario-separator {
      display: inline-block;
      margin: 0 1em;
    }

    .s-modal .right-panel .tab-line {
      position: relative;
      width: 100%;
      cursor: pointer;
      flex-shrink: 0;
      border-top: 1px solid #DCE6F4;
      box-sizing: border-box;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 var(--sol-panel-pad-right) 0 var(--sol-panel-pad-left);
      height: var(--sol-panel-row-h);
    }
    .s-modal .right-panel .tab-line.t1 { margin-top: var(--sol-space-16); }
    .s-modal .right-panel .multi-content + .tab-line { margin-top: var(--sol-space-16); }
    .s-modal .right-panel .tab-line .name { font-size: var(--sol-panel-title-fs); line-height: var(--sol-panel-title-lh); color: #050C3E; white-space: nowrap; }
    .s-modal .right-panel .tab-line .arrow { width: var(--sol-panel-arrow); height: var(--sol-panel-arrow); color: #050C3E; opacity: 0.3; flex-shrink: 0; }

    /* ============================================
       视频弹层(点击 RightPanel 触发)
       ============================================ */
    .s-video-mask {
      position: fixed; inset: 0;
      background: rgba(0, 0, 0, 0.78);
      z-index: 9999;
      display: flex; align-items: center; justify-content: center;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.25s ease;
    }
    .s-video-mask.visible { opacity: 1; pointer-events: auto; }
    .s-video-wrap {
      position: relative;
      width: min(80vw, 75rem);
      max-height: 85vh;
      background: #000;
      border-radius: var(--sol-radius-8);
      overflow: hidden;
      box-shadow: 0 1.25rem 3.75rem rgba(0, 0, 0, 0.6);
    }
    .s-video-el { display: block; width: 100%; max-height: 85vh; background: #000; outline: none; }
    .s-video-close {
      position: absolute;
      top: var(--sol-space-12); right: var(--sol-space-12);
      width: var(--sol-space-36); height: var(--sol-space-36);
      border: 0;
      border-radius: 50%;
      background: rgba(0, 0, 0, 0.55);
      color: #fff;
      cursor: pointer;
      z-index: 2;
      display: flex; align-items: center; justify-content: center;
      transition: background 0.2s;
    }
    .s-video-close:hover { background: rgba(0, 0, 0, 0.8); }
    .s-video-close svg { width: var(--sol-space-18); height: var(--sol-space-18); }/* ============================================
       Back-to-top
       ============================================ */
    .back-to-top {
      position: fixed;
      right: var(--sol-space-40); bottom: var(--sol-space-40);
      width: var(--sol-space-48); height: var(--sol-space-48);
      background: rgba(18,91,206,0.7);
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      cursor: pointer;
      z-index: 100;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s, background 0.3s;
      backdrop-filter: blur(0.5rem);
    }
    .back-to-top.visible { opacity: 1; pointer-events: auto; }
    .back-to-top:hover { background: rgba(18,91,206,1); }

    /* Solution page: CTA text move down, don't cover drawer hover images */
    body.solution-page .mod-cta--photo .mod-cta-text {
      margin-top: calc(24 / 1920 * var(--sol-design-w));
    }

    /* Solution page: CTA behind stays dark like the other shared footers. */
    body.solution-page .site-footer-shell {
      background: #000;
    }

    /* Keep the platform chip background visible on the white section base. */
    .s-platform .chip-bg {
      mix-blend-mode: normal;
    }

    .header { z-index: 200; }

    /* PC: Figma 393:4926, platform cards use one 1920-wide proportional scale. */
    @media (min-width: 769px) {
      html.solution-page-html:not([data-mobile]) body.solution-page .s-platform-inner {
        width: calc(var(--sol-design-w) - (480 / 1920 * var(--sol-design-w)));
        margin-left: calc(240 / 1920 * var(--sol-design-w));
        margin-right: calc(240 / 1920 * var(--sol-design-w));
      }

      html.solution-page-html:not([data-mobile]) body.solution-page .s-platform .platform-actions {
        --platform-actions-bottom: calc(120 / 1920 * var(--sol-design-w));
        --platform-card-h: calc(68 / 1920 * var(--sol-design-w));
        --platform-card-gap: calc(36 / 1920 * var(--sol-design-w));
        --platform-icon-left: calc(24 / 1920 * var(--sol-design-w));
        --platform-icon-size: calc(24 / 1920 * var(--sol-design-w));
        --platform-icon-text-gap: calc(14 / 1920 * var(--sol-design-w));
        width: 100%;
        gap: var(--platform-card-gap);
      }

      html.solution-page-html:not([data-mobile]) body.solution-page .s-platform .core-chip,
      html.solution-page-html:not([data-mobile]) body.solution-page .s-platform .p-card {
        width: calc(333 / 1920 * var(--sol-design-w));
        height: var(--platform-card-h);
        border-radius: calc(6 / 1920 * var(--sol-design-w));
      }

      html.solution-page-html:not([data-mobile]) body.solution-page .s-platform .p-cards {
        flex: 1 1 auto;
        gap: var(--platform-card-gap);
      }

      html.solution-page-html:not([data-mobile]) body.solution-page .s-platform .core-chip__icon,
      html.solution-page-html:not([data-mobile]) body.solution-page .s-platform .p-card .icon {
        left: var(--platform-icon-left);
        width: var(--platform-icon-size);
        height: var(--platform-icon-size);
        object-fit: contain;
      }

      html.solution-page-html:not([data-mobile]) body.solution-page .s-platform .core-chip__icon {
        border: 0;
      }

      html.solution-page-html:not([data-mobile]) body.solution-page .s-platform .core-chip__label,
      html.solution-page-html:not([data-mobile]) body.solution-page .s-platform .p-card .name {
        left: calc(var(--platform-icon-left) + var(--platform-icon-size) + var(--platform-icon-text-gap));
        font-size: var(--fs-20);
        line-height: calc(36 / 1920 * var(--sol-design-w));
      }

      html.solution-page-html:not([data-mobile]) body.solution-page .s-platform .platform-toggle {
        right: calc(24 / 1920 * var(--sol-design-w));
        width: calc(16 / 1920 * var(--sol-design-w));
        height: calc(16 / 1920 * var(--sol-design-w));
      }
    }