/* ==========================================================================
   desktop.css — 麦谷云科技官网桌面端样式表
   ==========================================================================
   主题: Maigu Cloud
   适用: 桌面端 (非移动设备)
   加载方式: wp_enqueue_style() → functions.php
   依赖: style.css (基础重置)

   Table of Contents
   -----------------------------------------------------------------------
   1.  CSS Variables          CSS 自定义属性（设计令牌）
   2.  Global Reset           全局重置与基础元素
   3.  Layout                 布局容器
   4.  Header & Navigation    顶部导航栏
   5.  Hero                   首屏英雄区域
   6.  Section Base           通用板块基类
   7.  About                  关于我们
   8.  Services               服务矩阵
   9.  Advantages             优势能力
   10. Cases                  客户案例与弹窗
   11. Footer                 页脚
   12. Responsive             响应式断点
   13. Visual Refresh 2026    2026视觉升级（增长叙事/制作能力/受众分析）
   14. Scroll Animation       滚动动效
   15. Responsive Overrides   响应式覆盖（大屏/平板/手机）
   ========================================================================== */

/* ==========================================================================
   1. CSS Variables — CSS 自定义属性（设计令牌）
   ========================================================================== */
    :root {
      --navy: #071a3a;
      --blue: #1266e3;
      --blue-dark: #0b4ab2;
      --cyan: #22c7e8;
      --gold: #f5b84b;
      --text: #10213f;
      --muted: #65728a;
      --line: #e6edf7;
      --soft: #f5f8fc;
      --white: #ffffff;
      --shadow: 0 18px 45px rgba(17, 48, 96, .10);
      --radius: 8px;
      --max: 1180px;
    }

/* ==========================================================================
   2. Global Reset — 全局重置与基础元素
   ========================================================================== */

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      overflow-x: hidden;
    }

    body {
      margin: 0;
      font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", Arial, sans-serif;
      color: var(--text);
      background: var(--white);
      line-height: 1.65;
    }

    img {
      display: block;
      width: 100%;
      height: auto;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

/* ==========================================================================
   3. Layout — 布局容器
   ========================================================================== */

    .container {
      width: min(var(--max), calc(100% - 48px));
      margin: 0 auto;
    }

/* ==========================================================================
   4. Header & Navigation — 顶部导航栏
   ========================================================================== */

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 255, 255, .92);
      border-bottom: 1px solid rgba(214, 224, 240, .72);
      backdrop-filter: blur(14px);
    }

    .nav {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
	  font-size: 26px;
      color: var(--navy);
      white-space: nowrap;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      object-fit: contain;
      flex: 0 0 auto;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 26px;
      color: #2c3b55;
      font-size: 14px;
      font-weight: 600;
    }

    .nav-links a {
      position: relative;
      padding: 8px 0;
    }

    .nav-links a::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 1px;
      width: 0;
      height: 2px;
      background: var(--blue);
      transition: width .2s ease;
    }

    .nav-links a:hover::after {
      width: 100%;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 22px;
      border: 1px solid transparent;
      border-radius: 6px;
      font-size: 14px;
      font-weight: 700;
      cursor: pointer;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--blue), var(--blue-dark));
      box-shadow: 0 14px 28px rgba(18, 102, 227, .22);
    }

    .nav-school-link {
      position: relative;
      color: var(--blue) !important;
      font-weight: 600;
    }
    .nav-school-link::before {
      content: "";
      position: absolute;
      left: -10px; top: 50%;
      transform: translateY(-50%);
      width: 4px; height: 4px;
      border-radius: 50%;
      background: var(--blue);
      box-shadow: 0 0 0 4px rgba(18, 102, 227, .12);
    }

    .nav-links .btn {
      min-width: 88px;
      min-height: 38px;
      padding: 0 16px;
      border-radius: 6px;
      line-height: 1;
      white-space: nowrap;
    }

    .btn-ghost {
      color: var(--blue);
      background: #fff;
      border-color: #cfe0f6;
    }

    .btn:hover {
      transform: translateY(-2px);
    }

    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--line);
      border-radius: 6px;
      background: #fff;
    }

    .menu-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      margin: 4px auto;
      background: var(--navy);
    }

/* ==========================================================================
   5. Hero — 首屏英雄区域
   ========================================================================== */

    .hero {
      position: relative;
      min-height: 760px;
      overflow: hidden;
      background:
        linear-gradient(90deg, rgba(255,255,255,.98) 0%, rgba(255,255,255,.92) 42%, rgba(255,255,255,.20) 72%, rgba(255,255,255,.05) 100%),
        url("../hero-shenzhen.jpg") right top / auto 64% no-repeat,
        #fff;
    }

    .hero::after {
      content: "";
      position: absolute;
      inset: auto 0 0;
      height: 250px;
      background:
        linear-gradient(180deg, rgba(255,255,255,0) 0%, #fff 88%),
        url("../glass-building.png") left bottom / 56% auto no-repeat;
      opacity: .30;
      pointer-events: none;
    }

    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 580px) 1fr;
      align-items: center;
      min-height: 688px;
      padding: 96px 0 70px;
    }

    .hero h1 {
      margin: 0 0 22px;
      color: var(--navy);
      font-size: 58px;
      line-height: 1.14;
      letter-spacing: 0;
      font-weight: 850;
    }

    .hero h1 span {
      color: var(--blue);
    }

    .hero-copy {
      max-width: 620px;
      margin: 0 0 34px;
      color: #43516b;
      font-size: 19px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 46px;
    }

    .hero-proof {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
      max-width: 650px;
    }

    .proof-item {
      padding: 18px 16px;
      background: rgba(255,255,255,.82);
      border: 1px solid rgba(221, 231, 245, .85);
      border-radius: var(--radius);
      box-shadow: 0 12px 30px rgba(17, 48, 96, .08);
    }

    .proof-item strong {
      display: block;
      color: var(--navy);
      font-size: 25px;
      line-height: 1;
      margin-bottom: 8px;
    }

    .proof-item span {
      display: block;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.45;
    }

/* ==========================================================================
   6. Section Base — 通用板块基类
   ========================================================================== */

    .section {
      padding: 96px 0;
    }

    .section.soft {
      background: linear-gradient(180deg, #f7faff 0%, #fff 100%);
    }

    .section.dark {
      color: #fff;
      background:
        linear-gradient(135deg, rgba(7, 26, 58, .96), rgba(9, 68, 143, .91)),
        url("../production-live.jpeg") center / cover no-repeat;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 32px;
      margin-bottom: 42px;
    }

    .section-title {
      margin: 0;
      color: var(--navy);
      font-size: 36px;
      line-height: 1.24;
      letter-spacing: 0;
    }

    .dark .section-title,
    .dark .section-note {
      color: #fff;
    }

    .section-title::after {
      content: "";
      display: block;
      width: 42px;
      height: 3px;
      margin-top: 14px;
      background: linear-gradient(90deg, var(--blue), var(--cyan));
      border-radius: 99px;
    }

    .section-note {
      max-width: 520px;
      margin: 0;
      color: var(--muted);
      font-size: 16px;
    }

/* ==========================================================================
   7. About — 关于我们
   ========================================================================== */

    .about-grid {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 54px;
      align-items: center;
    }

    .about-copy {
      color: #34425a;
      font-size: 17px;
    }

    .about-copy p {
      margin: 0 0 20px;
    }

    .feature-list {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
      margin-top: 28px;
    }

    .feature-list div,
    .service-card,
    .advantage-card,
    .case-card,
    .model-step {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: 0 12px 34px rgba(17, 48, 96, .06);
    }

    .feature-list div {
      padding: 18px;
    }

    .feature-list strong {
      display: block;
      color: var(--navy);
      margin-bottom: 4px;
    }

    .image-panel {
      position: relative;
      overflow: hidden;
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      background: #dfe9f5;
    }

    .image-panel img {
      aspect-ratio: 4 / 3;
      object-fit: cover;
    }

    .about-carousel {
      position: relative;
    }

    .carousel-track {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      aspect-ratio: auto;
      overflow: hidden;
      background: #dfe9f5;
    }

    .carousel-slide {
      position: absolute;
      inset: 0;
      opacity: 0;
      transition: opacity .45s ease;
    }

    .carousel-slide.is-active {
      opacity: 1;
    }

    .carousel-slide img {
      width: 100%;
      height: 100%;
      min-height: 0;
      aspect-ratio: auto;
      object-fit: cover;
    }

    .carousel-control {
      position: absolute;
      top: 50%;
      z-index: 2;
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      border: 1px solid rgba(255,255,255,.72);
      border-radius: 6px;
      color: #fff;
      background: rgba(7, 26, 58, .38);
      transform: translateY(-50%);
      cursor: pointer;
      backdrop-filter: blur(8px);
    }

    .carousel-control svg {
      width: 18px;
      height: 18px;
      stroke-width: 2.4;
    }

    .carousel-control.prev {
      left: 14px;
    }

    .carousel-control.next {
      right: 14px;
    }

    .carousel-dots {
      position: absolute;
      left: 0;
      right: 0;
      bottom: 14px;
      z-index: 2;
      display: flex;
      justify-content: center;
      gap: 8px;
    }

    .carousel-dots button {
      width: 8px;
      height: 8px;
      padding: 0;
      border: 0;
      border-radius: 999px;
      background: rgba(255,255,255,.62);
      cursor: pointer;
    }

    .carousel-dots button.is-active {
      width: 22px;
      background: var(--blue);
    }

    .image-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      border: 1px solid rgba(255,255,255,.45);
      border-radius: inherit;
      pointer-events: none;
    }

/* ==========================================================================
   8. Services — 服务矩阵
   ========================================================================== */

    .services-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 18px;
    }

    .service-card {
      min-height: 230px;
      padding: 28px 24px;
      transition: transform .2s ease, box-shadow .2s ease;
    }

    .service-card:hover,
    .case-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 18px 42px rgba(17, 48, 96, .12);
    }

    .icon {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      margin-bottom: 20px;
      color: #fff;
      background: linear-gradient(135deg, var(--blue), var(--cyan));
      border-radius: 8px;
      font-weight: 800;
      font-size: 15px;
    }

    .service-card h3,
    .advantage-card h3,
    .case-card h3,
    .model-step h3 {
      margin: 0 0 10px;
      color: var(--navy);
      font-size: 20px;
      line-height: 1.35;
    }

    .service-card p,
    .advantage-card p,
    .case-card p,
    .model-step p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

/* ==========================================================================
   9. Advantages — 优势能力
   ========================================================================== */

    .advantage-layout {
      display: grid;
      grid-template-columns: 380px 1fr;
      gap: 26px;
      align-items: stretch;
    }

    .advantage-feature {
      overflow: hidden;
      color: #fff;
      border-radius: var(--radius);
      background:
        linear-gradient(180deg, rgba(7, 26, 58, .22), rgba(7, 26, 58, .84)),
        url("../live-studio.jpeg") center / cover no-repeat;
      box-shadow: var(--shadow);
      min-height: 520px;
      display: flex;
      align-items: end;
      padding: 34px;
    }

    .advantage-feature h3 {
      margin: 0 0 10px;
      font-size: 28px;
      line-height: 1.25;
    }

    .advantage-feature p {
      margin: 0;
      color: rgba(255,255,255,.84);
    }

    .advantage-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }

    .advantage-card {
      padding: 28px;
    }

/* ==========================================================================
   10. Cases — 客户案例与弹窗
   ========================================================================== */

    .case-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 20px;
    }

    .case-card {
      overflow: hidden;
      display: block;
      width: 100%;
      padding: 0;
      text-align: left;
      font: inherit;
      color: inherit;
      cursor: pointer;
      transition: transform .2s ease, box-shadow .2s ease;
    }

    .case-card img {
      aspect-ratio: 16 / 10;
      object-fit: cover;
    }

    .case-image-placeholder {
      aspect-ratio: 16 / 10;
      display: grid;
      place-items: center;
      padding: 28px;
      color: #fff;
      background: linear-gradient(135deg, var(--navy), var(--blue));
      font-weight: 800;
      text-align: center;
    }

    .case-card:focus-visible,
    .modal-close:focus-visible {
      outline: 3px solid rgba(34, 199, 232, .55);
      outline-offset: 3px;
    }

    .case-body {
      padding: 22px;
    }

    .case-tag {
      display: inline-block;
      margin-bottom: 12px;
      color: var(--blue);
      font-size: 13px;
      font-weight: 800;
    }

    .case-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 16px;
    }

    .case-meta span {
      padding: 6px 9px;
      color: #36506f;
      background: #f4f8fe;
      border: 1px solid #e4edf8;
      border-radius: 5px;
      font-size: 12px;
      font-weight: 700;
    }

    .case-summary {
      display: -webkit-box;
      min-height: 74px;
      overflow: hidden;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
    }

    .case-more {
      display: flex;
      justify-content: center;
      margin-top: 34px;
    }

    .case-more .btn {
      min-width: min(360px, 100%);
      min-height: 50px;
      font-size: 15px;
    }

    .case-more[hidden] {
      display: none;
    }

    .logo-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 34px;
    }

    .logo-cloud span {
      padding: 9px 14px;
      color: #334762;
      background: #f5f8fc;
      border: 1px solid var(--line);
      border-radius: 6px;
      font-size: 14px;
      font-weight: 650;
    }

    .training-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 26px;
      align-items: center;
    }

    .training-copy {
      display: grid;
      gap: 18px;
    }

    .training-item {
      padding: 24px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.18);
      border-radius: var(--radius);
    }

    .training-item strong {
      display: block;
      margin-bottom: 6px;
      font-size: 20px;
    }

    .training-item span {
      color: rgba(255,255,255,.76);
    }

    .training-photos {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .training-photos img {
      height: 250px;
      object-fit: cover;
      border-radius: var(--radius);
      box-shadow: 0 18px 42px rgba(0, 0, 0, .20);
    }

    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
      margin-bottom: 44px;
    }

    .model {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
      counter-reset: steps;
    }

    .model-step {
      position: relative;
      padding: 28px 24px 30px;
      overflow: hidden;
    }

    .model-step::before {
      counter-increment: steps;
      content: "0" counter(steps);
      display: block;
      margin-bottom: 24px;
      color: rgba(18, 102, 227, .18);
      font-size: 54px;
      line-height: 1;
      font-weight: 850;
    }

    .cta {
      padding: 72px 0;
      color: #fff;
      background:
        linear-gradient(90deg, rgba(7, 26, 58, .97), rgba(12, 74, 156, .72)),
        url("../hero-shenzhen.jpg") center / cover no-repeat;
    }

    .cta-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 36px;
    }

    .cta h2 {
      margin: 0 0 12px;
      font-size: 40px;
      line-height: 1.22;
    }

    .cta p {
      margin: 0;
      color: rgba(255,255,255,.78);
      font-size: 17px;
    }

    .contact-card {
      min-width: 320px;
      padding: 26px;
      background: rgba(255,255,255,.10);
      border: 1px solid rgba(255,255,255,.20);
      border-radius: var(--radius);
    }

    .contact-card div {
      display: flex;
      justify-content: space-between;
      gap: 24px;
      padding: 10px 0;
      border-bottom: 1px solid rgba(255,255,255,.14);
    }

    .contact-card div:last-child {
      border-bottom: 0;
    }

    .contact-card span {
      color: rgba(255,255,255,.65);
    }

    .case-modal {
      position: fixed;
      inset: 0;
      z-index: 100;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 28px;
      background: rgba(4, 16, 36, .62);
      backdrop-filter: blur(10px);
    }

    .case-modal.is-open {
      display: flex;
    }

    .modal-panel {
      width: min(860px, 100%);
      max-height: min(760px, calc(100vh - 56px));
      overflow: auto;
      background: #fff;
      border-radius: var(--radius);
      box-shadow: 0 30px 80px rgba(0, 0, 0, .28);
    }

    .modal-hero {
      min-height: 190px;
      padding: 34px;
      color: #fff;
      background:
        linear-gradient(135deg, rgba(7, 26, 58, .95), rgba(18, 102, 227, .72)),
        url("../hero-shenzhen.jpg") center / cover no-repeat;
    }

    .modal-top {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 24px;
    }

    .modal-eyebrow {
      display: block;
      margin-bottom: 12px;
      color: rgba(255,255,255,.78);
      font-size: 14px;
      font-weight: 800;
    }

    .modal-title {
      margin: 0;
      font-size: 32px;
      line-height: 1.22;
    }

    .modal-close {
      flex: 0 0 auto;
      width: 42px;
      height: 42px;
      border: 1px solid rgba(255,255,255,.25);
      border-radius: 6px;
      color: #fff;
      background: rgba(255,255,255,.12);
      font-size: 26px;
      line-height: 1;
      cursor: pointer;
    }

    .modal-content {
      padding: 30px 34px 34px;
    }

    .modal-metrics {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      margin-bottom: 26px;
    }

    .modal-metrics div {
      padding: 16px;
      background: #f5f8fc;
      border: 1px solid var(--line);
      border-radius: 6px;
    }

    .modal-metrics span {
      display: block;
      margin-bottom: 5px;
      color: var(--muted);
      font-size: 12px;
      font-weight: 700;
    }

    .modal-metrics strong {
      color: var(--navy);
      font-size: 19px;
      line-height: 1.2;
    }

    .modal-block {
      margin-top: 22px;
    }

    .modal-block h4 {
      margin: 0 0 10px;
      color: var(--navy);
      font-size: 18px;
    }

    .modal-block p,
    .modal-block li {
      color: #42506a;
      font-size: 15px;
    }

    .modal-block ul {
      margin: 0;
      padding-left: 20px;
    }

    .modal-gallery {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
      margin-top: 14px;
    }

    .modal-gallery img {
      width: 100%;
      max-height: 360px;
      object-fit: contain;
      background: #f5f8fc;
      border: 1px solid var(--line);
      border-radius: 6px;
    }

/* ==========================================================================
   11. Footer — 页脚
   ========================================================================== */

    .footer {
      padding: 26px 0;
      color: rgba(255,255,255,.62);
      background: #06142d;
      font-size: 13px;
    }

    .footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .footer-links {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
    }

/* ==========================================================================
   12. Responsive — 响应式断点（平板/手机）
   ========================================================================== */

    @media (max-width: 980px) {
      .container {
        width: min(100% - 36px, var(--max));
      }

      .menu-toggle {
        display: block;
      }

      .nav-links {
        position: absolute;
        left: 18px;
        right: 18px;
        top: 72px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 10px 18px 18px;
        background: #fff;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        box-shadow: var(--shadow);
      }

      .nav-links.is-open {
        display: flex;
      }

      .nav-links a {
        padding: 12px 0;
        border-bottom: 1px solid var(--line);
      }

      .nav-links .btn {
        margin-top: 14px;
        min-height: 44px;
      }

      .hero {
        min-height: auto;
        background:
          linear-gradient(180deg, rgba(255,255,255,.98) 0%, rgba(255,255,255,.9) 52%, rgba(255,255,255,.32) 100%),
          url("../hero-shenzhen.jpg") center top / auto 360px no-repeat,
          #fff;
      }

      .hero::after {
        opacity: .22;
        background-size: 100% auto;
      }

      .hero-grid {
        display: block;
        min-height: auto;
        padding: 390px 0 72px;
      }

      .hero h1 {
        font-size: 42px;
      }

      .hero-copy {
        font-size: 17px;
      }

      .hero-proof,
      .services-grid,
      .case-grid,
      .guarantee-grid,
      .model {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .about-grid,
      .advantage-layout,
      .training-grid {
        grid-template-columns: 1fr;
      }

      .advantage-feature {
        min-height: 420px;
      }

      .section-head,
      .cta-inner,
      .footer-inner {
        align-items: flex-start;
        flex-direction: column;
      }

      .contact-card {
        min-width: 0;
        width: 100%;
      }
    }

    @media (max-width: 640px) {
      .nav {
        height: 66px;
      }

      .brand {
        font-size: 15px;
      }

      .brand-mark {
        width: 36px;
        height: 36px;
      }

      .nav-links {
        top: 66px;
      }

      .hero {
        background-size: auto 280px;
      }

      .hero-grid {
        padding-top: 306px;
      }

      .hero h1 {
        font-size: 34px;
      }

      .hero-actions {
        flex-direction: column;
      }

      .btn {
        width: 100%;
      }

      .hero-proof,
      .services-grid,
      .advantage-grid,
      .case-grid,
      .training-photos,
      .guarantee-grid,
      .model,
      .feature-list {
        grid-template-columns: 1fr;
      }

      .section {
        padding: 68px 0;
      }

      .section-title {
        font-size: 29px;
      }

      .service-card,
      .advantage-card,
      .model-step,
      .training-item {
        padding: 22px;
      }

      .advantage-feature {
        min-height: 330px;
        padding: 24px;
      }

      .training-photos img {
        height: 220px;
      }

      .cta {
        padding: 58px 0;
      }

      .cta h2 {
        font-size: 32px;
      }

      .contact-card div {
        display: block;
      }

      .contact-card strong {
        display: block;
        margin-top: 4px;
      }
    }

/* ==========================================================================
   13. Visual Refresh 2026 — 2026视觉升级
   增长叙事 / 制作能力 / 受众分析 / 数据轴 / 滚动提示
   ========================================================================== */

    /* 2026 visual refresh — editorial growth narrative */
    :root {
      --navy: #071a3a;
      --blue: #1769e8;
      --blue-dark: #0d45a4;
      --cyan: #36c7df;
      --gold: #ff7a00;
      --text: #0b1930;
      --muted: #617087;
      --line: rgba(7, 26, 58, .11);
      --soft: #f3f6fa;
      --cream: #f7f6f1;
      --white: #fff;
      --shadow: 0 28px 80px rgba(7, 26, 58, .12);
      --radius: 24px;
      --max: 1240px;
    }

    body {
      overflow-x: hidden;
      background: #fff;
      line-height: 1.6;
      text-rendering: optimizeLegibility;
    }

    ::selection {
      color: #fff;
      background: var(--blue);
    }

    .container {
      width: min(var(--max), calc(100% - 64px));
    }

    .site-header {
      position: fixed;
      width: 100%;
      background: rgba(255, 255, 255, .86);
      border-bottom: 1px solid rgba(7, 26, 58, .07);
      backdrop-filter: blur(20px) saturate(150%);
      transition: background .25s ease, box-shadow .25s ease;
    }

    .site-header.is-scrolled {
      background: rgba(255, 255, 255, .96);
      box-shadow: 0 10px 30px rgba(7, 26, 58, .07);
    }

    .nav {
      height: 82px;
    }

    .brand {
      gap: 11px;
      font-size: 21px;
      letter-spacing: -.03em;
    }

    .brand-mark {
      width: 66px;
      height: 68px;
    }

    .brand small {
      display: block;
      margin-top: -3px;
      color: #7a8799;
      font-size: 9px;
      font-weight: 700;
      letter-spacing: .14em;
    }

    .nav-links {
      gap: 30px;
      color: #26364d;
      font-size: 13px;
    }

    .nav-links a::after {
      height: 1px;
      background: var(--gold);
    }

    .btn {
      min-height: 50px;
      padding: 0 26px;
      border-radius: 999px;
      letter-spacing: .02em;
    }

    .btn-primary {
      background: var(--blue);
      box-shadow: 0 14px 30px rgba(23, 105, 232, .22);
    }

    .btn-primary::after {
      content: "↗";
      margin-left: 12px;
      font-size: 16px;
      transition: transform .2s ease;
    }

    .btn-primary:hover::after {
      transform: translate(2px, -2px);
    }

    .btn-ghost {
      color: var(--navy);
      background: transparent;
      border-color: rgba(7, 26, 58, .22);
    }

    .nav-links .btn {
      min-height: 42px;
      padding: 0 19px;
    }

    .hero {
      min-height: 920px;
      background: var(--cream);
      isolation: isolate;
    }

    .hero::before {
      content: "";
      position: absolute;
      z-index: -1;
      inset: 0;
      background:
        radial-gradient(circle at 76% 23%, rgba(54, 199, 223, .18), transparent 25%),
        radial-gradient(circle at 12% 72%, rgba(23, 105, 232, .10), transparent 25%),
        linear-gradient(rgba(7, 26, 58, .035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(7, 26, 58, .035) 1px, transparent 1px);
      background-size: auto, auto, 64px 64px, 64px 64px;
      mask-image: linear-gradient(to bottom, #000 0%, rgba(0,0,0,.75) 64%, transparent 100%);
    }

    .hero::after {
      display: none;
    }

    .hero-grid {
      grid-template-columns: minmax(0, .93fr) minmax(480px, 1.07fr);
      gap: clamp(48px, 7vw, 108px);
      min-height: 920px;
      padding: 150px 0 88px;
    }

    .hero-kicker,
    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 24px;
      color: var(--blue);
      font-size: 12px;
      font-weight: 800;
      letter-spacing: .14em;
      text-transform: uppercase;
    }

    .hero-kicker::before,
    .section-kicker::before {
      content: "";
      width: 26px;
      height: 2px;
      background: var(--gold);
    }

    .hero h1 {
      max-width: 720px;
      margin-bottom: 28px;
      color: var(--navy);
      font-size: clamp(54px, 5.3vw, 80px);
      line-height: 1.04;
      letter-spacing: -.01em;
      font-weight: 850;
    }

    .hero h1 span {
      position: relative;
      color: var(--blue);
    }

    .hero h1 span::after {
      content: "";
      position: absolute;
      right: -26px;
      top: 1px;
      width: 13px;
      height: 13px;
      border-radius: 50%;
      background: var(--gold);
    }

    .hero-copy {
      max-width: 580px;
      margin-bottom: 36px;
      color: #526078;
      font-size: 18px;
      line-height: 1.85;
    }

    .hero-actions {
      margin-bottom: 58px;
    }

    .hero-proof {
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 0;
      max-width: 680px;
      border-top: 1px solid rgba(7, 26, 58, .14);
    }

    .proof-item {
      padding: 22px 18px 0 0;
      background: transparent;
      border: 0;
      border-radius: 0;
      box-shadow: none;
    }

    .proof-item strong {
      font-size: 26px;
      letter-spacing: -.04em;
    }

    .proof-item span {
      max-width: 112px;
      color: #718096;
      font-size: 11px;
      line-height: 1.5;
    }

    .hero-visual {
      position: relative;
      min-height: 650px;
    }

    .hero-frame {
      position: absolute;
      inset: 10px 0 52px 42px;
      overflow: hidden;
      border-radius: 32px 32px 120px 32px;
      background: var(--navy);
      box-shadow: 0 40px 90px rgba(7, 26, 58, .2);
    }

    .hero-frame::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(155deg, transparent 38%, rgba(7,26,58,.72) 100%);
    }

    .hero-frame img {
      height: 100%;
      object-fit: cover;
      object-position: 52% center;
      transform: scale(1.04);
    }

    .hero-orbit {
      position: absolute;
      top: 0;
      right: -48px;
      width: 190px;
      height: 190px;
      border: 1px solid rgba(23, 105, 232, .22);
      border-radius: 50%;
      animation: orbit-spin 18s linear infinite;
    }

    .hero-orbit::before,
    .hero-orbit::after {
      content: "";
      position: absolute;
      border-radius: 50%;
    }

    .hero-orbit::before {
      inset: 24px;
      border: 1px dashed rgba(23, 105, 232, .28);
    }

    .hero-orbit::after {
      top: 17px;
      left: 18px;
      width: 14px;
      height: 14px;
      background: var(--gold);
      box-shadow: 0 0 0 8px rgba(255, 122, 0, .12);
    }

    .hero-data-card {
      position: absolute;
      z-index: 2;
      right: -24px;
      bottom: 78px;
      width: min(270px, 48%);
      padding: 24px;
      color: #fff;
      background: rgba(7, 26, 58, .92);
      border: 1px solid rgba(255,255,255,.16);
      border-radius: 22px;
      box-shadow: var(--shadow);
      backdrop-filter: blur(16px);
    }

    .hero-data-card span,
    .hero-photo-label span {
      display: block;
      color: rgba(255,255,255,.62);
      font-size: 10px;
      font-weight: 800;
      letter-spacing: .16em;
      text-transform: uppercase;
    }

    .hero-data-card strong {
      display: block;
      margin: 7px 0 10px;
      font-size: 25px;
      line-height: 1.2;
    }

    .hero-data-card p {
      margin: 0;
      color: rgba(255,255,255,.72);
      font-size: 12px;
      line-height: 1.65;
    }

    .hero-photo-label {
      position: absolute;
      z-index: 2;
      left: 0;
      bottom: 14px;
      width: 205px;
      padding: 20px;
      color: #fff;
      background: var(--blue);
      border-radius: 20px;
      box-shadow: 0 24px 50px rgba(23, 105, 232, .25);
    }

    .hero-photo-label strong {
      display: block;
      margin-top: 6px;
      font-size: 18px;
    }

    .scroll-hint {
      position: absolute;
      z-index: 4;
      left: 50%;
      bottom: 28px;
      display: flex;
      align-items: center;
      gap: 10px;
      color: #7f8b9c;
      font-size: 10px;
      font-weight: 800;
      letter-spacing: .14em;
      transform: translateX(-50%);
    }

    .scroll-hint::before {
      content: "";
      width: 1px;
      height: 34px;
      background: var(--blue);
      animation: scroll-pulse 1.8s ease-in-out infinite;
    }

    .section {
      padding: 126px 0;
    }

    .section-head {
      align-items: flex-end;
      margin-bottom: 64px;
    }

    .section-head > div {
      max-width: 760px;
    }

    .section-title {
      margin-top: 0;
      color: var(--navy);
      font-size: clamp(40px, 4.1vw, 62px);
      line-height: 1.08;
      letter-spacing: -.05em;
    }

    .section-note {
      max-width: 460px;
      color: #69768a;
      font-size: 15px;
      line-height: 1.8;
    }

    .about-grid {
      grid-template-columns: minmax(0, .85fr) minmax(500px, 1.15fr);
      gap: clamp(60px, 8vw, 120px);
      align-items: center;
    }

    .about-copy {
      max-width: 570px;
      color: #56657a;
      font-size: 18px;
      line-height: 1.9;
    }

    .feature-list {
      gap: 0;
      margin-top: 42px;
      border-top: 1px solid var(--line);
    }

    .feature-list > div {
      padding: 22px 22px 22px 0;
      background: transparent;
      border: 0;
      border-bottom: 1px solid var(--line);
      border-radius: 0;
      box-shadow: none;
    }

    .feature-list strong {
      color: var(--navy);
      font-size: 15px;
    }

    .feature-list span {
      margin-top: 7px;
      color: #778398;
      font-size: 12px;
    }

    .image-panel {
      min-height: 610px;
      border-radius: 28px 28px 96px 28px;
      box-shadow: var(--shadow);
    }

    .carousel-control {
      width: 48px;
      height: 48px;
      border-radius: 50%;
    }

    .growth-manifesto {
      position: relative;
      overflow: hidden;
      padding: 128px 0;
      color: #fff;
      background: var(--navy);
    }

    .growth-manifesto::before {
      content: "";
      position: absolute;
      width: 620px;
      height: 620px;
      right: -190px;
      top: -240px;
      border: 1px solid rgba(54, 199, 223, .18);
      border-radius: 50%;
      box-shadow: 0 0 0 80px rgba(54,199,223,.025), 0 0 0 160px rgba(54,199,223,.02);
    }

    .manifesto-head {
      display: grid;
      grid-template-columns: .36fr 1fr;
      gap: 64px;
      align-items: start;
    }

    .manifesto-head .section-kicker {
      color: #8fddec;
    }

    .manifesto-head h2 {
      max-width: 860px;
      margin: 0;
      font-size: clamp(42px, 5.2vw, 72px);
      line-height: 1.12;
      letter-spacing: -.055em;
      font-weight: 800;
    }

    .manifesto-head h2 em {
      color: #71d8e9;
      font-style: normal;
    }

    .growth-axis {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1px;
      margin-top: 82px;
      background: rgba(255,255,255,.13);
      border: 1px solid rgba(255,255,255,.13);
    }

    .growth-node {
      position: relative;
      min-height: 220px;
      padding: 34px;
      background: var(--navy);
      transition: background .3s ease;
    }

    .growth-node:hover {
      background: #0c2854;
    }

    .growth-node span {
      color: #72d9ea;
      font-size: 11px;
      font-weight: 800;
      letter-spacing: .16em;
    }

    .growth-node h3 {
      margin: 54px 0 8px;
      font-size: 27px;
    }

    .growth-node p {
      margin: 0;
      color: rgba(255,255,255,.58);
      font-size: 13px;
    }

    .growth-node::after {
      content: "↗";
      position: absolute;
      right: 28px;
      top: 26px;
      color: var(--gold);
      font-size: 20px;
    }

    .section.soft {
      background: var(--soft);
    }

    .services-grid {
      grid-template-columns: repeat(5, minmax(0, 1fr));
      grid-auto-rows: 1fr;
      gap: 18px;
    }

    .business-rails {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      margin: 0 0 38px;
      border-top: 1px solid rgba(7,26,58,.14);
      border-bottom: 1px solid rgba(7,26,58,.14);
    }

    .business-rail {
      min-height: 156px;
      padding: 24px 26px;
      border-right: 1px solid rgba(7,26,58,.12);
    }

    .business-rail:last-child {
      border-right: 0;
    }

    .business-rail span {
      display: block;
      margin-bottom: 22px;
      color: var(--blue);
      font-size: 10px;
      font-weight: 900;
      letter-spacing: .16em;
    }

    .business-rail strong {
      display: block;
      color: var(--navy);
      font-size: 17px;
      line-height: 1.4;
    }

    .business-rail p {
      margin: 7px 0 0;
      color: #7a8799;
      font-size: 11px;
      line-height: 1.65;
    }

    .service-card {
      grid-column: auto;
      min-height: 300px;
      height: 100%;
      padding: 30px;
      overflow: hidden;
      background: #fff;
      border: 1px solid transparent;
      border-radius: 24px;
      box-shadow: none;
    }

    .service-card:hover {
      border-color: rgba(23,105,232,.16);
      box-shadow: 0 28px 70px rgba(7,26,58,.11);
      transform: translateY(-8px);
    }

    .service-visual {
      min-height: 109px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .service-visual img {
      width: 100%;
      max-width: 190px;
      aspect-ratio: 190 / 109;
      object-fit: contain;
      transition: transform .25s ease;
    }

    .service-card:hover .service-visual img {
      transform: scale(1.04);
    }

    .service-card h3 {
      margin-top: 26px;
      color: var(--navy);
      font-size: 22px;
      letter-spacing: -.03em;
    }

    .service-card p {
      color: #718095;
      font-size: 13px;
      line-height: 1.75;
    }

    .platform-strip {
      display: flex;
      align-items: center;
      gap: 24px;
      margin-top: 44px;
      padding: 23px 0 0;
      border-top: 1px solid var(--line);
    }

    .platform-strip > span {
      flex: 0 0 auto;
      color: #8a96a7;
      font-size: 10px;
      font-weight: 900;
      letter-spacing: .16em;
      text-transform: uppercase;
    }

    .platform-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px 22px;
      margin: 0;
      padding: 0;
      list-style: none;
      color: #40516a;
      font-size: 12px;
      font-weight: 750;
    }

    .platform-list li::before {
      content: "";
      display: inline-block;
      width: 5px;
      height: 5px;
      margin: 0 8px 2px 0;
      border-radius: 50%;
      background: var(--blue);
    }

    .ip-method {
      position: relative;
      overflow: hidden;
      background: #fff;
    }

    .ip-method::before {
      content: "IP GROWTH";
      position: absolute;
      right: -24px;
      top: 18px;
      color: rgba(7,26,58,.025);
      font-size: clamp(88px, 13vw, 190px);
      font-weight: 900;
      line-height: 1;
      letter-spacing: -.07em;
      pointer-events: none;
    }

    .ip-steps {
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      margin-top: 26px;
      border-top: 1px solid rgba(7,26,58,.18);
      border-bottom: 1px solid rgba(7,26,58,.12);
    }

    .ip-step {
      position: relative;
      min-height: 312px;
      padding: 30px 26px;
      border-right: 1px solid rgba(7,26,58,.1);
      transition: background .25s ease, transform .25s ease;
    }

    .ip-step:last-child {
      border-right: 0;
    }

    .ip-step:hover {
      background: #f6f9fd;
      transform: translateY(-4px);
    }

    .ip-step .step-no {
      color: var(--blue);
      font-size: 11px;
      font-weight: 900;
      letter-spacing: .16em;
    }

    .ip-step::after {
      content: "";
      position: absolute;
      left: 26px;
      top: -5px;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--blue);
      box-shadow: 0 0 0 5px #fff;
    }

    .ip-step h3 {
      margin: 86px 0 13px;
      color: var(--navy);
      font-size: 20px;
      letter-spacing: -.03em;
    }

    .ip-step p {
      margin: 0;
      color: #718095;
      font-size: 12px;
      line-height: 1.75;
    }

    #advantages.section {
      color: #fff;
      background: #06152f;
    }

    #advantages .section-title {
      color: #fff;
    }

    #advantages .section-note {
      color: rgba(255,255,255,.55);
    }

    #advantages .section-kicker {
      color: #8fddec;
    }

    .advantage-layout {
      grid-template-columns: minmax(360px, .88fr) minmax(0, 1.12fr);
      gap: 22px;
    }

    .advantage-feature {
      min-height: 690px;
      padding: 42px;
      border-radius: 28px 28px 94px 28px;
      box-shadow: none;
    }

    .advantage-feature::after {
      background: linear-gradient(180deg, rgba(6,21,47,.04), rgba(6,21,47,.92));
    }

    .advantage-feature h3 {
      max-width: 410px;
      font-size: 34px;
      letter-spacing: -.04em;
    }

    .production-points {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin: 24px 0 0;
      padding: 0;
      list-style: none;
    }

    .production-points li {
      padding: 7px 10px;
      color: rgba(255,255,255,.8);
      border: 1px solid rgba(255,255,255,.24);
      border-radius: 999px;
      font-size: 10px;
      font-weight: 750;
      backdrop-filter: blur(8px);
    }

    .advantage-grid {
      gap: 1px;
      background: rgba(255,255,255,.13);
      border: 1px solid rgba(255,255,255,.13);
      border-radius: 28px;
      overflow: hidden;
    }

    .advantage-card {
      min-height: 229px;
      padding: 34px;
      background: #06152f;
      border: 0;
      border-radius: 0;
      box-shadow: none;
    }

    .advantage-card::before {
      content: "";
      display: block;
      width: 28px;
      height: 3px;
      margin-bottom: 52px;
      background: var(--blue);
      transition: width .25s ease;
    }

    .advantage-card:hover {
      background: #0b244d;
      transform: none;
    }

    .advantage-card:hover::before {
      width: 52px;
      background: var(--gold);
    }

    .advantage-card h3 {
      color: #fff;
      font-size: 18px;
    }

    .advantage-card p {
      color: rgba(255,255,255,.52);
      font-size: 12px;
      line-height: 1.7;
    }

    #cases {
      background: #fff;
    }

    .case-filters {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin: -8px 0 34px;
    }

    .case-filter {
      min-height: 42px;
      padding: 0 18px;
      color: #617087;
      background: #f5f8fc;
      border: 1px solid transparent;
      border-radius: 999px;
      font: 750 12px/1 "PingFang SC", "Microsoft YaHei", sans-serif;
      cursor: pointer;
      transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease;
    }

    .case-filter:hover {
      color: var(--blue);
      border-color: rgba(23,105,232,.2);
      transform: translateY(-2px);
    }

    .case-filter.is-active {
      color: #fff;
      background: var(--blue);
      border-color: var(--blue);
      box-shadow: 0 10px 24px rgba(23,105,232,.2);
    }

    .case-filter:focus-visible {
      outline: 3px solid rgba(34,199,232,.45);
      outline-offset: 3px;
    }

    .case-grid {
      gap: 24px;
    }

    .case-card {
      overflow: hidden;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 24px;
      box-shadow: none;
      text-align: left;
    }

    .case-card:hover {
      border-color: rgba(23,105,232,.22);
      box-shadow: 0 26px 70px rgba(7,26,58,.11);
      transform: translateY(-7px);
    }

    .case-card img {
      aspect-ratio: 1.42 / 1;
      transition: transform .55s cubic-bezier(.2,.7,.2,1);
    }

    .case-card img.case-proof-image {
      padding: 12px;
      object-fit: contain;
      background: #f6f8fb;
    }

    .case-card:hover img {
      transform: scale(1.045);
    }

    .case-body {
      padding: 26px 26px 28px;
    }

    .case-tag {
      color: var(--blue);
      background: rgba(23,105,232,.07);
      border-radius: 999px;
      font-size: 10px;
      letter-spacing: .05em;
    }

    .case-card h3 {
      margin-top: 16px;
      color: var(--navy);
      font-size: 21px;
      letter-spacing: -.03em;
    }

    .case-summary {
      min-height: 70px;
      color: #738095 !important;
      font-size: 12px !important;
      line-height: 1.8;
    }

    .case-meta {
      padding-top: 18px;
      border-top: 1px solid var(--line);
    }

    .case-meta span {
      color: #526177;
      background: transparent;
      border-radius: 0;
      font-size: 10px;
    }

    .case-more {
      margin-top: 50px;
    }

    .logo-cloud {
      gap: 10px;
      margin-top: 90px;
      padding-top: 34px;
      border-top: 1px solid var(--line);
    }

    .logo-cloud::before {
      content: "部分合作品牌";
      flex: 0 0 100%;
      margin-bottom: 14px;
      color: #8a96a7;
      font-size: 10px;
      font-weight: 800;
      letter-spacing: .18em;
    }

    .logo-cloud span {
      padding: 13px 19px;
      color: #526177;
      background: #f6f8fb;
      border: 1px solid transparent;
      border-radius: 999px;
      font-size: 12px;
    }

    .dark {
      color: #fff;
      background: var(--blue);
    }

    .dark::before {
      content: "TRAINING";
      position: absolute;
      right: -30px;
      top: 36px;
      color: rgba(255,255,255,.055);
      font-size: clamp(90px, 15vw, 220px);
      line-height: 1;
      font-weight: 900;
      letter-spacing: -.08em;
    }

    .training-grid {
      position: relative;
      grid-template-columns: minmax(0, 1fr) 718px;
      gap: clamp(42px, 5vw, 70px);
    }

    .dark .section-title {
      color: #fff;
    }

    #training .section-title {
      font-size: clamp(38px, 3.4vw, 52px);
    }

    .dark .section-kicker {
      color: #bdebf3;
    }

    .training-item {
      padding: 24px 0;
      background: transparent;
      border: 0;
      border-bottom: 1px solid rgba(255,255,255,.2);
      border-radius: 0;
    }

    .training-item strong {
      color: #fff;
      font-size: 17px;
    }

    .training-item span {
      margin-top: 8px;
      color: rgba(255,255,255,.63);
      font-size: 12px;
    }

    .training-photos {
      grid-template-columns: repeat(2, 350px);
      grid-auto-rows: 230px;
      gap: 18px;
      align-items: stretch;
      justify-content: end;
    }

    .training-photos img,
    .training-photos img + img {
      width: 350px;
      height: 230px;
      object-fit: cover;
      border-radius: 22px;
      box-shadow: 0 35px 80px rgba(4,26,77,.24);
    }

    #guarantee {
      background: var(--cream);
    }

    #guarantee .guarantee-grid {
      gap: 18px;
    }

    #guarantee .advantage-card {
      min-height: 250px;
      background: #fff;
      border-radius: 22px;
    }

    #guarantee .advantage-card::before {
      margin-bottom: 54px;
      background: var(--gold);
    }

    #guarantee .advantage-card h3 {
      color: var(--navy);
    }

    #guarantee .advantage-card p {
      color: #718095;
    }

    .model {
      grid-template-columns: repeat(4, 1fr);
      gap: 0;
      margin-top: 72px;
      counter-reset: process;
      border-top: 1px solid rgba(7,26,58,.18);
    }

    .model-step {
      position: relative;
      min-height: 245px;
      padding: 34px 34px 30px 0;
      background: transparent;
      border: 0;
      border-radius: 0;
      box-shadow: none;
      counter-increment: process;
    }

    .model-step::before {
      content: "0" counter(process);
      display: block;
      margin-bottom: 72px;
      color: var(--blue);
      font-size: 11px;
      font-weight: 900;
      letter-spacing: .16em;
    }

    .model-step::after {
      content: "";
      position: absolute;
      top: -5px;
      left: 0;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--blue);
      box-shadow: 0 0 0 5px var(--cream);
    }

    .model-step h3 {
      color: var(--navy);
      font-size: 20px;
    }

    .model-step p {
      color: #718095;
      font-size: 12px;
    }

    .cta {
      padding: 84px 0;
      color: #fff;
      background: #fff;
      scroll-margin-top: 80px;
    }

    .audience-wrap {
      margin-bottom: 76px;
      color: var(--text);
    }

    .audience-head {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(300px, 430px);
      gap: 50px;
      align-items: end;
      margin-bottom: 34px;
    }

    .audience-head h2 {
      margin: 0;
      color: var(--navy);
      font-size: clamp(38px, 4vw, 58px);
      line-height: 1.08;
      letter-spacing: -.05em;
    }

    .cta .audience-head p {
      margin: 0;
      color: #718095;
      font-size: 14px;
      line-height: 1.85;
    }

    .audience-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      border-top: 1px solid rgba(7,26,58,.16);
      border-bottom: 1px solid rgba(7,26,58,.12);
    }

    .audience-item {
      min-height: 196px;
      padding: 28px 26px;
      border-right: 1px solid rgba(7,26,58,.1);
    }

    .audience-item:last-child {
      border-right: 0;
    }

    .audience-item span {
      color: var(--blue);
      font-size: 10px;
      font-weight: 900;
      letter-spacing: .16em;
    }

    .audience-item h3 {
      margin: 42px 0 10px;
      color: var(--navy);
      font-size: 18px;
      letter-spacing: -.03em;
    }

    .cta .audience-item p {
      color: #718095;
      font-size: 12px;
      line-height: 1.7;
    }

    .cta-quote {
      max-width: 610px;
      color: rgba(255,255,255,.76) !important;
      font-size: 17px !important;
      line-height: 1.8;
    }

    .cta-inner {
      position: relative;
      overflow: hidden;
      gap: 60px;
      padding: 70px;
      background:
        radial-gradient(circle at 88% 10%, rgba(54,199,223,.28), transparent 28%),
        linear-gradient(135deg, var(--navy), #0d326a);
      border-radius: 34px;
    }

    .cta-inner::before {
      content: "";
      position: absolute;
      left: -90px;
      bottom: -210px;
      width: 430px;
      height: 430px;
      border: 1px solid rgba(255,255,255,.12);
      border-radius: 50%;
      box-shadow: 0 0 0 55px rgba(255,255,255,.025), 0 0 0 110px rgba(255,255,255,.018);
    }

    .cta h2 {
      max-width: 570px;
      font-size: clamp(38px, 4vw, 60px);
      line-height: 1.08;
      letter-spacing: -.05em;
    }

    .cta p {
      color: rgba(255,255,255,.62);
      font-size: 15px;
    }

    .contact-card {
      position: relative;
      min-width: 430px;
      padding: 30px;
      background: rgba(255,255,255,.09);
      border: 1px solid rgba(255,255,255,.14);
      border-radius: 22px;
      backdrop-filter: blur(14px);
    }

    .contact-card div {
      padding: 13px 0;
      border-color: rgba(255,255,255,.13);
    }

    .contact-card span {
      color: rgba(255,255,255,.48);
      font-size: 11px;
    }

    .contact-card strong {
      color: #fff;
      font-size: 13px;
    }

    .footer {
      padding: 32px 0;
      background: #040e20;
    }

    .case-modal {
      backdrop-filter: blur(12px);
    }

    .modal-panel {
      border-radius: 26px;
    }

    .modal-hero {
      background: linear-gradient(135deg, var(--navy), #114894);
    }

/* ==========================================================================
   14. Scroll Animation — 滚动动效
   ========================================================================== */

    [data-reveal] {
      opacity: 0;
      transform: translateY(34px);
      transition: opacity .75s ease, transform .75s cubic-bezier(.2,.7,.2,1);
    }

    [data-reveal].is-visible {
      opacity: 1;
      transform: none;
    }

    /* 折叠的案例卡片不显示（确保 hidden 属性生效，SEO 仍可读取全文） */
    .case-card[hidden] {
      display: none !important;
    }

    @keyframes orbit-spin {
      to { transform: rotate(360deg); }
    }

    @keyframes scroll-pulse {
      0%, 100% { opacity: .25; transform: scaleY(.6); transform-origin: top; }
      50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
      }

      [data-reveal] {
        opacity: 1;
        transform: none;
      }
    }

/* ==========================================================================
   15. Responsive Overrides — 响应式覆盖（大屏/平板/手机）
   ========================================================================== */

    @media (max-width: 1080px) {
      .hero-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
      }

      .hero-visual {
        min-height: 580px;
      }

      .services-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .business-rails,
      .audience-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .business-rail:nth-child(2),
      .audience-item:nth-child(2) {
        border-right: 0;
      }

      .business-rail:nth-child(-n+2),
      .audience-item:nth-child(-n+2) {
        border-bottom: 1px solid rgba(7,26,58,.1);
      }

      .ip-steps {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .ip-step:nth-child(even) {
        border-right: 0;
      }

      .ip-step:nth-child(-n+4) {
        border-bottom: 1px solid rgba(7,26,58,.1);
      }

      .service-card,
      .service-card:nth-child(-n+2) {
        grid-column: auto;
        min-height: 300px;
      }

      .about-grid,
      .training-grid {
        grid-template-columns: 1fr 1fr;
        gap: 48px;
      }

      .training-grid {
        grid-template-columns: 1fr;
      }

      .training-photos {
        grid-template-columns: repeat(2, minmax(0, 350px));
        grid-auto-rows: auto;
        justify-content: center;
      }

      .training-photos img,
      .training-photos img + img {
        width: 100%;
        height: auto;
        aspect-ratio: 350 / 230;
      }
    }

    @media (max-width: 980px) {
      .container {
        width: min(100% - 40px, var(--max));
      }

      .site-header {
        position: fixed;
      }

      .nav {
        height: 72px;
      }

      .nav-links {
        top: 72px;
        border-radius: 18px;
      }

      .hero {
        min-height: auto;
        background: var(--cream);
      }

      .hero-grid {
        display: grid;
        grid-template-columns: 1fr;
        min-height: auto;
        padding: 128px 0 92px;
      }

      .hero-visual {
        min-height: 630px;
        order: -1;
      }

      .hero-frame {
        inset: 0 40px 56px 40px;
      }

      .hero h1 {
        font-size: clamp(48px, 9vw, 70px);
      }

      .scroll-hint {
        display: none;
      }

      .section {
        padding: 96px 0;
      }

      .about-grid,
      .advantage-layout,
      .training-grid,
      .manifesto-head {
        grid-template-columns: 1fr;
      }

      .about-grid {
        gap: 60px;
      }

      .about-grid > .image-panel {
        order: -1;
      }

      .image-panel {
        min-height: 520px;
      }

      .manifesto-head {
        gap: 18px;
      }

      .growth-axis {
        margin-top: 60px;
      }

      .advantage-feature {
        min-height: 560px;
      }

      .training-photos {
        margin-top: 20px;
      }

      .cta-inner {
        padding: 54px;
      }

      .audience-head {
        grid-template-columns: 1fr;
        gap: 22px;
      }

      .contact-card {
        min-width: 0;
        width: 100%;
      }
    }

    @media (max-width: 680px) {
      .container {
        width: min(100% - 32px, var(--max));
      }

      .nav {
        height: 66px;
      }

      .brand {
        font-size: 17px;
      }

      .brand small {
        display: none;
      }

      .brand-mark {
        width: 34px;
        height: 34px;
      }

      .nav-links {
        top: 66px;
      }

      .hero-grid {
        padding: 98px 0 76px;
      }

      .hero-visual {
        min-height: 410px;
      }

      .hero-frame {
        inset: 0 14px 44px 14px;
        border-radius: 22px 22px 70px 22px;
      }

      .hero-orbit {
        right: -70px;
        width: 150px;
        height: 150px;
      }

      .hero-data-card {
        right: 0;
        bottom: 48px;
        width: 210px;
        padding: 17px;
      }

      .hero-data-card strong {
        font-size: 19px;
      }

      .hero-photo-label {
        left: 0;
        bottom: 12px;
        width: 156px;
        padding: 15px;
      }

      .hero h1 {
        font-size: clamp(42px, 13vw, 58px);
      }

      .hero h1 span::after {
        right: -16px;
        width: 9px;
        height: 9px;
      }

      .hero-copy {
        font-size: 16px;
      }

      .hero-actions {
        display: grid;
      }

      .hero-proof {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 20px;
      }

      .proof-item span {
        max-width: none;
      }

      .section {
        padding: 76px 0;
      }

      .section-head {
        gap: 18px;
        margin-bottom: 40px;
      }

      .section-title {
        font-size: 39px;
      }

      .about-grid {
        gap: 42px;
      }

      .image-panel {
        min-height: 360px;
      }

      .growth-manifesto {
        padding: 78px 0;
      }

      .manifesto-head h2 {
        font-size: 40px;
      }

      .growth-axis {
        grid-template-columns: 1fr;
      }

      .growth-node {
        min-height: 180px;
      }

      .growth-node h3 {
        margin-top: 36px;
      }

      .services-grid {
        grid-template-columns: 1fr;
      }

      .business-rails,
      .ip-steps,
      .audience-grid {
        grid-template-columns: 1fr;
      }

      .business-rail,
      .business-rail:nth-child(2),
      .audience-item,
      .audience-item:nth-child(2),
      .ip-step,
      .ip-step:nth-child(even) {
        border-right: 0;
      }

      .business-rail:not(:last-child),
      .audience-item:not(:last-child),
      .ip-step:not(:last-child) {
        border-bottom: 1px solid rgba(7,26,58,.1);
      }

      .business-rail {
        min-height: auto;
        padding: 22px 4px;
      }

      .business-rail span {
        margin-bottom: 10px;
      }

      .platform-strip {
        align-items: flex-start;
        flex-direction: column;
        gap: 14px;
      }

      .ip-step {
        min-height: 230px;
        padding: 28px 4px;
      }

      .ip-step::after {
        left: 4px;
      }

      .ip-step h3 {
        margin-top: 48px;
      }

      .service-card,
      .service-card:nth-child(-n+2) {
        min-height: 270px;
        padding: 28px;
      }

      .service-card h3,
      .service-card:nth-child(-n+2) h3 {
        margin-top: 24px;
        font-size: 24px;
      }

      .advantage-feature {
        min-height: 420px;
        padding: 28px;
      }

      .advantage-feature h3 {
        font-size: 27px;
      }

      .advantage-grid,
      .guarantee-grid,
      .case-grid {
        grid-template-columns: 1fr;
      }

      .case-filters {
        flex-wrap: nowrap;
        margin-right: -16px;
        padding: 0 16px 8px 0;
        overflow-x: auto;
        scrollbar-width: none;
      }

      .case-filters::-webkit-scrollbar {
        display: none;
      }

      .case-filter {
        flex: 0 0 auto;
      }

      .advantage-card {
        min-height: 220px;
      }

      .training-photos {
        grid-template-columns: 1fr 1fr;
      }

      .training-photos img,
      .training-photos img + img {
        width: 100%;
        height: auto;
        aspect-ratio: 350 / 230;
        border-radius: 20px;
      }

      .model {
        grid-template-columns: 1fr;
        border-top: 0;
      }

      .model-step {
        min-height: auto;
        padding: 28px 0;
        border-top: 1px solid rgba(7,26,58,.16);
      }

      .model-step::before {
        margin-bottom: 30px;
      }

      .model-step::after {
        display: none;
      }

      .cta {
        padding: 32px 0;
        scroll-margin-top: 70px;
      }

      .audience-wrap {
        margin-bottom: 56px;
      }

      .audience-head h2 {
        font-size: 38px;
      }

      .audience-item {
        min-height: auto;
        padding: 24px 4px;
      }

      .audience-item h3 {
        margin-top: 24px;
      }

      .cta-inner {
        padding: 42px 24px;
        border-radius: 24px;
      }

      .cta h2 {
        font-size: 38px;
      }

      .contact-card {
        padding: 20px;
      }

      .footer-inner {
        gap: 12px;
      }
    }