/* ==========================================================================
   能猫智匠云 · 移动端专属极致体验样式表 (Mobile Master Stylesheet)
   适用于 index_mobile.html · 全面适配 344px ~ 430px+ 主流移动设备
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. 全局移动端底座与视口防溢出 (Global Mobile Baseline)
   -------------------------------------------------------------------------- */
@media screen and (max-width: 900px) {
  html, body {
    max-width: 100vw !important;
    overflow-x: clip !important;
    -webkit-text-size-adjust: 100%;
    touch-action: pan-x pan-y; /* 仅允许平移滚动，禁止双指缩放与双击缩放页面 */
  }

  /* 消除 iOS 点击灰色闪烁，提升原生触感 */
  * {
    -webkit-tap-highlight-color: transparent;
  }

  /* 移动端安全区域适配 */
  body {
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }

  /* 修复通用容器宽度与内边距 */
  .wrap {
    width: 100% !important;
    max-width: 100% !important;
    padding-left: clamp(14px, 4vw, 20px) !important;
    padding-right: clamp(14px, 4vw, 20px) !important;
    box-sizing: border-box !important;
  }

  /* 通用按键触控热区保底 ≥ 44px */
  .btn, button.btn-line, button.btn-dark, button.btn-light, .mc-play, .modal-x {
    min-height: 44px;
    touch-action: manipulation;
  }

  /* 表单输入框字号 ≥ 16px，彻底杜绝 iOS 聚焦时自动放大视口 */
  input[type="text"],
  input[type="tel"],
  input[type="email"],
  textarea,
  select {
    font-size: 16px !important;
  }

  /* 噪点与流体背景移动端性能优化 */
  .grain {
    max-width: 100vw !important;
    overflow: hidden !important;
  }
}

/* --------------------------------------------------------------------------
   1. 独立首屏 Hero Cover (section.neg-screen-cover) 移动端自适应重构
   -------------------------------------------------------------------------- */
@media screen and (max-width: 900px) {
  .neg-screen-cover {
    height: auto !important;
    min-height: 100svh !important;
    padding-bottom: 24px !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: space-between !important;
    overflow-x: clip !important;
  }

  /* 首屏顶部导航栏 */
  .neg-cover-nav {
    height: 58px !important;
    padding: 0 14px !important;
  }
  .neg-cover-nav .nav-inner {
    padding: 0 !important;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .neg-cover-nav .brand-name {
    font-size: 16px !important;
  }
  .neg-cover-nav .brand-tag {
    display: none !important;
  }
  .neg-cover-nav .neg-logo-icon {
    width: 32px !important;
    height: 32px !important;
  }

  /* 轮播视窗容器 */
  .neg-carousel-viewport {
    padding-top: 10px !important;
    padding-bottom: 12px !important;
    flex: 1 !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
  }

  .neg-cover-body {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    text-align: center !important;
    padding: 10px 0 !important;
    gap: 16px !important;
  }

  .neg-cover-left {
    width: 100% !important;
    max-width: 100% !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    padding: 0 !important;
  }

  /* 标题体系缩放与换行优化 */
  .neg-hero-title.is-main-cn {
    font-size: clamp(24px, 6.8vw, 32px) !important;
    letter-spacing: -0.01em !important;
    margin-bottom: 6px !important;
    line-height: 1.25 !important;
  }

  .neg-hero-eng.is-sub-eng {
    font-size: clamp(14px, 4vw, 18px) !important;
    letter-spacing: 0.05em !important;
    margin-bottom: 8px !important;
    opacity: 0.8 !important;
  }

  .neg-hero-sub {
    font-size: clamp(13px, 3.6vw, 15px) !important;
    margin-bottom: 16px !important;
    line-height: 1.5 !important;
    color: var(--mu-l) !important;
  }
  body.bp-dark .neg-hero-sub {
    color: var(--mu-d) !important;
  }

  /* 核心行动号召双按钮 */
  .neg-hero-ctas {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 12px !important;
    width: 100% !important;
    max-width: 340px !important;
    margin: 0 auto 12px !important;
  }
  .neg-hero-ctas .btn {
    flex: 1 !important;
    padding: 0 14px !important;
    font-size: 13.5px !important;
    height: 42px !important;
    white-space: nowrap !important;
  }

  /* 右侧展台/三维设备窗口在移动端优雅缩放 */
  .neg-cover-right {
    width: 100% !important;
    max-width: 100% !important;
    display: flex !important;
    justify-content: center !important;
  }

  .neg-device-stage,
  .neg-window-mockup,
  .neg-placeholder-panel {
    max-width: min(340px, 88vw) !important;
    width: 100% !important;
    margin: 0 auto !important;
  }

  .neg-window-body img,
  .neg-phone-screen img {
    width: 100% !important;
    height: auto !important;
    object-fit: contain !important;
  }

  /* 修复控制器溢出：轮播指示器在移动端完美自适应且绝不超界 */
  .neg-cover-footer {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 14px 10px !important;
    gap: 14px !important;
    box-sizing: border-box !important;
  }

  .neg-carousel-controls {
    width: 100% !important;
    max-width: 100% !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 8px !important;
    overflow: hidden !important;
  }

  .neg-ctrl-btn {
    flex: 0 0 32px !important;
    width: 32px !important;
    height: 32px !important;
    font-size: 15px !important;
  }

  .neg-segmented-track {
    flex: 1 1 auto !important;
    max-width: calc(100% - 80px) !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 6px !important;
  }

  .neg-seg-item {
    flex: 1 1 0 !important;
    padding: 4px 2px !important;
    gap: 4px !important;
    justify-content: center !important;
    min-width: 0 !important;
  }

  .neg-seg-num {
    display: none !important; /* 移动端隐藏分段数字，避免挤压溢出 */
  }

  .neg-seg-bar {
    width: 100% !important;
    max-width: 44px !important;
    height: 4px !important;
    border-radius: 99px !important;
  }

  .neg-scroll-down {
    height: 36px !important;
    padding: 0 16px !important;
    font-size: 12px !important;
    gap: 6px !important;
  }
}

/* 针对 344px ~ 375px 超窄屏额外微调 */
@media screen and (max-width: 375px) {
  .neg-hero-ctas {
    flex-direction: column !important;
    gap: 8px !important;
  }
  .neg-hero-ctas .btn {
    width: 100% !important;
  }
  .neg-device-stage,
  .neg-window-mockup {
    max-width: 290px !important;
  }
}

/* --------------------------------------------------------------------------
   2. 主站吸顶导航栏 (header.nav) 与移动端抽屉 (mnav) 优化
   -------------------------------------------------------------------------- */
@media screen and (max-width: 900px) {
  .nav {
    height: 58px !important;
  }
  .nav .nav-inner {
    padding: 0 14px !important;
  }
  .nav .brand-name {
    font-size: 16px !important;
  }
  .nav .brand-mark {
    width: 32px !important;
    height: 32px !important;
  }
  .nav-actions {
    gap: 8px !important;
  }
  .mode-tg {
    width: 58px !important;
    height: 32px !important;
  }
  .burger {
    width: 40px !important;
    height: 40px !important;
  }

  /* 移动端全屏抽屉菜单 */
  .mnav {
    padding: env(safe-area-inset-top, 0px) 20px 30px !important;
    gap: 12px !important;
    background: rgba(7, 18, 48, 0.97) !important;
    backdrop-filter: blur(24px) !important;
    -webkit-backdrop-filter: blur(24px) !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
    z-index: 9999 !important;
  }
  /* 菜单顶部：左上角关闭按钮 + 品牌（菜单层级高于顶栏，需自带关闭入口） */
  .mnav-head {
    position: sticky;
    top: 0;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 10px;
    height: 58px;
    flex-shrink: 0;
    margin: 0 -6px;
    background: rgba(7, 18, 48, 0.97);
  }
  .mnav-close {
    display: inline-grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: 8px;
    color: #f1f5f9;
  }
  .mnav-close:active {
    background: rgba(255, 255, 255, 0.1);
  }
  .mnav-close svg {
    width: 22px;
    height: 22px;
  }
  .mnav-brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--f-disp);
    font-weight: 700;
    font-size: 16px;
    color: #f1f5f9;
  }
  .mnav-brand .brand-mark {
    width: 28px;
    height: 28px;
  }
  .mnav-links {
    display: flex !important;
    flex-direction: column !important;
    gap: 4px !important;
  }
  .mnav-links a {
    min-height: 48px !important;
    padding: 12px 6px !important;
    font-size: 18px !important;
    color: #f1f5f9 !important; /* 强制亮白文字，杜绝暗色背景下黑字看不清 */
    border-bottom: 1px solid rgba(255, 255, 255, 0.12) !important;
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
  }
  .mnav-links a:hover,
  .mnav-links a:active {
    color: #38bdf8 !important;
  }
  .mnav-links a i.mono {
    font-size: 11px !important;
    padding: 2px 7px !important;
    border-radius: 4px !important;
    background: rgba(61, 115, 221, 0.35) !important;
    color: #93c5fd !important;
  }
}

/* --------------------------------------------------------------------------
   3. 主站 Hero 门面区 (#top) 移动端排版优化
   -------------------------------------------------------------------------- */
@media screen and (max-width: 900px) {
  .hero {
    padding-top: calc(var(--nav-h, 58px) + 20px) !important;
    padding-bottom: 40px !important;
    min-height: auto !important;
  }

  .hero-eyebrow {
    font-size: 12px !important;
    padding: 4px 12px !important;
    margin-bottom: 16px !important;
  }

  .hero-titlebox {
    padding-top: 20px !important;
    margin-bottom: 24px !important;
    width: 100% !important;
  }

  /* 修复主标题在移动端字号过大导致单个词截断的问题 */
  .hero-title {
    font-size: clamp(34px, 9.6vw, 48px) !important;
    line-height: 1.25 !important;
    letter-spacing: -0.02em !important;
  }

  .hero-sub {
    font-size: clamp(18px, 5.2vw, 24px) !important;
    margin-top: 10px !important;
    line-height: 1.4 !important;
  }

  .hero-desc {
    font-size: 14px !important;
    line-height: 1.65 !important;
    margin-bottom: 22px !important;
  }

  .hero-ctas {
    display: flex !important;
    flex-direction: column !important;
    gap: 10px !important;
    width: 100% !important;
    max-width: 320px !important;
    margin: 0 auto 32px !important;
  }
  .hero-ctas .btn {
    width: 100% !important;
    height: 46px !important;
    font-size: 14.5px !important;
    display: flex !important;
    justify-content: center !important;
  }

  /* 4 组关键成效指标面板 2x2 网格高对比度优化 */
  .hero-stats {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    width: 100% !important;
    max-width: 390px !important;
    margin: 0 auto !important;
    border: 1px solid rgba(61, 115, 221, 0.35) !important;
    border-radius: 12px !important;
    background: #0c1a3d !important;
    overflow: hidden !important;
  }
  .hero-stats .stat {
    padding: 24px 14px 14px !important;
    box-sizing: border-box !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
  }
  .hero-stats .stat::before {
    color: #38bdf8 !important;
  }
  .hero-stats .stat dt {
    font-size: 12px !important;
    color: #94a3b8 !important;
  }
  .hero-stats .stat dd {
    margin-top: 4px !important;
    color: #ffffff !important;
  }
  .hero-stats .stat dd b {
    font-size: clamp(24px, 6vw, 30px) !important;
    color: #ffffff !important;
  }
  .hero-stats .stat dd small {
    color: #60a5fa !important;
  }
}

/* --------------------------------------------------------------------------
   4. 实践先行教学闭环 (#practice) 移动端自适应
   -------------------------------------------------------------------------- */
@media screen and (max-width: 900px) {
  .loop-pin {
    height: auto !important;
    min-height: 100svh !important;
    padding: 40px 0 !important;
  }
  .loop-grid {
    display: flex !important;
    flex-direction: column !important;
    gap: 20px !important;
  }
  .loop-left {
    width: 100% !important;
    order: 2 !important;
  }
  .loop-right {
    width: 100% !important;
    height: 240px !important;
    order: 1 !important;
    position: relative !important;
  }
  .hcard {
    width: min(320px, 90vw) !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    margin-left: 0 !important;
  }
  .loop-progress {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 6px !important;
    margin-top: 16px !important;
  }
  .loop-progress li {
    font-size: 11.5px !important;
    padding: 4px 10px !important;
  }
}

/* --------------------------------------------------------------------------
   5. 生态伙伴与合作院校 (.logos) 移动端优化
   -------------------------------------------------------------------------- */
@media screen and (max-width: 900px) {
  .section.logos {
    padding: 40px 0 30px !important;
  }
  .partner-eco-cards {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }
  .eco-card {
    padding: 16px 14px !important;
  }
  .eco-card-title {
    font-size: 15px !important;
  }
  .partner-school-rail {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 10px !important;
  }
  .school-rail-badge {
    width: 100% !important;
    text-align: center !important;
    justify-content: center !important;
    padding: 8px 14px !important;
  }
}

/* --------------------------------------------------------------------------
   6. 02 双端架构便当盒 (#architecture) 移动端优化
   -------------------------------------------------------------------------- */
@media screen and (max-width: 900px) {
  .section.arch {
    padding: 40px 0 !important;
  }
  .bento {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }
  .bcard {
    padding: 18px 16px !important;
    min-height: auto !important;
  }
  .bcard-a #globe {
    max-height: 220px !important;
  }
  .stack-3d {
    transform: scale(0.85) !important;
    transform-origin: center center !important;
    margin: -10px auto !important;
  }
}

/* --------------------------------------------------------------------------
   7. 【核心】超级老师系统运行架构蓝图 (#superTeacherArch) 移动端全景升华
   -------------------------------------------------------------------------- */
@media screen and (max-width: 900px) {
  .st-arch-sec {
    margin-top: 32px !important;
    width: 100% !important;
  }

  .st-arch-header {
    margin-bottom: 14px !important;
    padding-bottom: 12px !important;
  }

  .st-arch-badge {
    font-size: 10px !important;
    padding: 4px 10px !important;
    letter-spacing: 0.05em !important;
  }

  .st-arch-title {
    font-size: clamp(18px, 5.2vw, 24px) !important;
    line-height: 1.35 !important;
    margin-bottom: 6px !important;
  }

  .st-arch-sub {
    font-size: 12px !important;
    line-height: 1.5 !important;
  }
}

/* --------------------------------------------------------------------------
   8. 【核心】03 专业课程矩阵 (#courses) 移动端极致体验
   -------------------------------------------------------------------------- */
@media screen and (max-width: 900px) {
  .courses {
    padding: 40px 0 !important;
  }

  .courses-head {
    margin-bottom: 20px !important;
  }

  /* 4 项规模统计指标条 2x2 网格紧凑适配 */
  .cmx-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    width: 100% !important;
    border-radius: 10px !important;
  }
  .cmx-stats > div {
    padding: 10px 12px !important;
    border-left: 1px dashed var(--line-l) !important;
  }
  .cmx-stats > div:nth-child(2n+1) {
    border-left: 0 !important;
  }
  .cmx-stats > div:nth-child(n+3) {
    border-top: 1px dashed var(--line-l) !important;
  }
  .cmx-stats dt {
    font-size: 10px !important;
    letter-spacing: 0.05em !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
  }
  .cmx-stats dd {
    font-size: 24px !important;
    margin-top: 4px !important;
  }

  /* 结果过滤栏：分段筛选器横向滑动，带渐变提示 */
  .cmx-controls {
    display: flex !important;
    flex-direction: column !important;
    gap: 10px !important;
    width: 100% !important;
  }

  .cmx-filter-scroll-wrap {
    position: relative;
    width: 100%;
    overflow: hidden;
  }
  .cmx-filter-scroll-wrap::after {
    content: "";
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 24px;
    background: linear-gradient(90deg, transparent, var(--bg, #f2f4f8));
    pointer-events: none;
  }
  body.bp-dark .cmx-filter-scroll-wrap::after {
    background: linear-gradient(90deg, transparent, #071230);
  }

  .seg {
    display: flex !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    width: 100% !important;
    padding: 3px !important;
    gap: 4px !important;
  }
  .seg::-webkit-scrollbar {
    display: none !important;
  }
  .seg button {
    flex-shrink: 0 !important;
    white-space: nowrap !important;
    padding: 7px 12px !important;
    font-size: 12.5px !important;
    min-height: 36px !important;
  }

  /* 搜索框在移动端满宽高触控体验 */
  .cmx-search {
    width: 100% !important;
    max-width: 100% !important;
  }
  .cmx-search input {
    height: 42px !important;
    font-size: 14px !important;
    padding-left: 38px !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* 面包屑条 */
  .cmx-status-bar {
    flex-wrap: wrap !important;
    gap: 8px !important;
    padding: 10px 0 !important;
  }
  .cmx-crumbs {
    font-size: 12px !important;
  }

  /* 课程分类侧边树移动端折叠抽屉 */
  .cmx-side {
    border-radius: 10px !important;
  }
  .cmx-side-head {
    min-height: 48px !important;
    padding: 0 14px !important;
    font-size: 13.5px !important;
  }

  /* 课程列表单列排版 */
  .cmx-grid {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }
  .ccell {
    padding: 12px 14px !important;
    border-radius: 10px !important;
  }
  .ccell-name {
    font-size: 14.5px !important;
  }

  /* 课程实训资源卡单列 */
  .cmx-sw-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }
  .ccard {
    border-radius: 12px !important;
  }
  .ccard-foot .btn {
    min-height: 42px !important;
    font-size: 13.5px !important;
  }
}

/* --------------------------------------------------------------------------
   9. 【核心】04 AI智能体系统运行动态路由图 (Magpie风格) 移动端纵向流拓扑
   -------------------------------------------------------------------------- */
@media screen and (max-width: 900px) {
  .console-sec {
    padding: 40px 0 !important;
  }

  /* 顶部场景选择 Tabs 横向原生触控滑动 */
  .magpie-header-bar {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 12px !important;
    margin-bottom: 16px !important;
    position: relative !important;
    z-index: 40 !important;
  }

  .magpie-tabs-ctrl {
    width: 100% !important;
    gap: 8px !important;
    position: relative !important;
    z-index: 40 !important;
  }

  .magpie-tabs-lead {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 6px !important;
  }

  .magpie-tabs-hint {
    font-size: 11.5px !important;
    line-height: 1.4 !important;
  }

  /* 隐藏桌面端横向左右滑动 Tab 栏，避免在移动端上下浏览时产生理解割裂与截断不自知 */
  .magpie-tabs {
    display: none !important;
  }

  /* 显示移动端专属单列下拉菜单栏 (用户无需左右滑动，单手点触即弹出原生选择器) */
  .magpie-mobile-select-wrap {
    display: block !important;
    width: 100% !important;
    margin: 2px 0 4px !important;
    position: relative !important;
    z-index: 50 !important;
  }

  .magpie-mobile-select-wrap.is-open {
    z-index: 9999 !important;
  }

  .magpie-desc-card {
    max-width: 100% !important;
    padding: 10px 12px !important;
    border-radius: 10px !important;
  }

  .magpie-header-desc {
    font-size: 12px !important;
    line-height: 1.55 !important;
  }

  /* 取消移动端上下结构模式，采用专属交互小窗口架构，完整保留桌面端横向拓扑并支持平移缩放 */
  .magpie-window-frame {
    margin-top: 12px !important;
    border-radius: 14px !important;
  }

  .magpie-win-toolbar {
    padding: 8px 10px !important;
    gap: 6px !important;
  }

  .magpie-win-badge {
    font-size: 11px !important;
    padding: 2.5px 6px !important;
  }

  .magpie-win-tip {
    font-size: 10px !important;
  }

  .magpie-win-tools {
    gap: 4px !important;
  }

  .magpie-tool-btn {
    height: 28px !important;
    padding: 0 7px !important;
    font-size: 11.5px !important;
  }

  .magpie-tool-ratio {
    min-width: 34px !important;
    font-size: 10.5px !important;
  }

  .magpie-btn-expand {
    padding: 0 9px !important;
    font-size: 11.5px !important;
  }

  .magpie-viewport-box {
    height: clamp(420px, 60vh, 480px) !important;
  }

  .magpie-pan-hint {
    font-size: 11px !important;
    padding: 5px 12px !important;
  }

  .magpie-win-statusbar {
    padding: 6px 10px !important;
    font-size: 10.5px !important;
  }
}

/* --------------------------------------------------------------------------
   10. B/C 双通道、下载矩阵、社区工单与合作表单移动端优化
   -------------------------------------------------------------------------- */
@media screen and (max-width: 900px) {
  .chan-grid,
  .dl-grid {
    grid-template-columns: 1fr !important;
    gap: 14px !important;
  }
  .chan {
    padding: 24px 18px !important;
    min-height: auto !important;
    border-radius: 14px !important;
  }
  .chan-title {
    font-size: 20px !important;
  }
  .chan-desc {
    font-size: 13.5px !important;
  }
  .chan-list li {
    font-size: 13px !important;
  }

  .down-card {
    padding: 20px 16px !important;
  }
  .down-btn {
    width: 100% !important;
    height: 46px !important;
    justify-content: center !important;
  }

  .community-grid {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }
  .ticket {
    padding: 14px !important;
  }

  /* --------------------------------------------------------------------------
     10.4 产教融合生态与商务拓展 (#partners) 移动端紧凑瘦身 (方案一)
     -------------------------------------------------------------------------- */
  .partner-sec {
    padding-bottom: 40px !important;
  }
  .partner {
    grid-template-columns: 1fr !important;
    padding: 22px 16px !important;
    gap: 20px !important;
    border-radius: 16px !important;
  }
  .partner-l {
    display: flex !important;
    flex-direction: column !important;
  }
  .partner .eyebrow-dark {
    font-size: 11px !important;
    margin-bottom: 6px !important;
  }
  .partner .eyebrow-dark .idx {
    font-size: 11px !important;
  }
  .partner .h2 {
    font-size: clamp(24px, 6.5vw, 30px) !important;
    line-height: 1.22 !important;
    letter-spacing: -0.02em !important;
  }
  .partner-desc {
    margin-top: 10px !important;
    font-size: 13px !important;
    line-height: 1.65 !important;
    color: var(--tx-d2) !important;
  }
  .tracks {
    margin-top: 14px !important;
    gap: 0 !important;
  }
  .tracks li {
    grid-template-columns: 28px 1fr !important;
    gap: 8px !important;
    padding: 9px 0 !important;
  }
  .tracks i {
    font-size: 11px !important;
    padding-top: 2px !important;
  }
  .tracks b {
    font-size: 13.5px !important;
    font-weight: 600 !important;
  }
  .tracks p {
    margin-top: 2px !important;
    font-size: 12px !important;
    line-height: 1.5 !important;
    color: var(--tx-d2) !important;
  }

  /* 表单卡片 (.form) 移动端紧凑优化 */
  .partner .form {
    padding: 18px 14px !important;
    gap: 10px !important;
    border-radius: 12px !important;
    box-shadow: 0 16px 36px -12px rgba(2, 8, 26, 0.45) !important;
  }
  .form-head {
    margin-bottom: 2px !important;
    padding-bottom: 8px !important;
  }
  .form-head .h4 {
    font-size: 15.5px !important;
    line-height: 1.35 !important;
  }
  .form-head p {
    margin-top: 3px !important;
    font-size: 10.5px !important;
  }

  /* 姓名与联系电话：移动端保持双列并排，不折行 */
  .partner .form .field-row {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 8px !important;
  }

  /* 输入框高度与内边距紧凑化 */
  .partner .form .field input {
    height: 46px !important;
    padding: 19px 12px 5px !important;
    font-size: 13.5px !important;
    border-radius: 6px !important;
  }
  .partner .form .field > input + span {
    left: 12px !important;
    top: 14px !important;
    font-size: 13px !important;
  }
  .partner .form .field > input:focus + span,
  .partner .form .field > input:not(:placeholder-shown) + span {
    transform: translateY(-8px) scale(0.72) !important;
  }
  .partner .form .field em {
    left: 12px !important;
    top: 25px !important;
    right: 12px !important;
    font-size: 11px !important;
  }

  /* 合作类型：整齐的 2x2 网格 */
  .partner .form .field-select {
    padding: 10px 12px 12px !important;
    border-radius: 6px !important;
  }
  .partner .form .field-static {
    font-size: 11px !important;
    margin-bottom: 8px !important;
  }
  .partner .form .opts {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 6px !important;
  }
  .partner .form .opts label {
    display: block !important;
    width: 100% !important;
    margin: 0 !important;
  }
  .partner .form .opts span {
    width: 100% !important;
    height: 35px !important;
    padding: 0 4px !important;
    font-size: 11.5px !important;
    letter-spacing: -0.01em !important;
    border-radius: 5px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    text-align: center !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    box-sizing: border-box !important;
  }

  /* 留言需求框：移动端按需展开 */
  .partner .form .field-msg-box {
    position: relative;
    width: 100%;
  }
  .partner .form .field-msg-box:not(.is-expanded) .field-area {
    display: none !important;
  }
  .partner .form .field-msg-box:not(.is-expanded) .field-msg-toggle {
    display: flex !important;
  }
  .partner .form .field-msg-box.is-expanded .field-msg-toggle {
    display: none !important;
  }
  .partner .form .field-msg-box.is-expanded .field-area {
    display: block !important;
    animation: fieldFadeIn .22s ease-out;
  }
  .partner .form .field-msg-toggle {
    display: none;
    width: 100%;
    height: 36px;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: rgba(61, 115, 221, 0.05);
    border: 1px dashed rgba(61, 115, 221, 0.35);
    border-radius: 6px;
    color: var(--blue-700, #2563eb);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all .2s ease;
    padding: 0 10px;
    box-sizing: border-box;
  }
  .partner .form .field-msg-toggle:active {
    background: rgba(61, 115, 221, 0.12);
  }
  [data-mode="dark"] .partner .form .field-msg-toggle,
  :root:not([data-mode="light"]) .partner .form .field-msg-toggle {
    background: rgba(61, 115, 221, 0.1);
    border-color: rgba(61, 115, 221, 0.4);
    color: #93c5fd;
  }
  .partner .form .field textarea {
    min-height: 74px !important;
    height: 74px !important;
    padding: 22px 12px 6px !important;
    font-size: 13.5px !important;
    border-radius: 6px !important;
  }
  .partner .form .field > textarea + span {
    left: 12px !important;
    top: 14px !important;
    font-size: 13px !important;
  }
  .partner .form .field > textarea:focus + span,
  .partner .form .field > textarea:not(:placeholder-shown) + span {
    transform: translateY(-8px) scale(0.72) !important;
  }
  .partner .form .field-area em {
    left: 12px !important;
    top: 25px !important;
    right: 12px !important;
    font-size: 11px !important;
  }

  /* 提交意向按钮 */
  .partner .form .btn-submit {
    width: 100% !important;
    height: 46px !important;
    margin-top: 4px !important;
    border-radius: 6px !important;
  }
  .partner .form .btn-submit .btn-label {
    font-size: 14px !important;
    font-weight: 600 !important;
  }
  .partner .form .btn-submit .btn-ico svg {
    width: 14px !important;
    height: 14px !important;
  }
}

@keyframes fieldFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   11. 站点页脚与图签 (.footer) 移动端优化
   -------------------------------------------------------------------------- */
@media screen and (max-width: 900px) {
  .footer {
    padding: 40px 0 24px !important;
  }
  .footer-cta {
    padding: 24px 16px !important;
    text-align: center !important;
  }
  .footer-cta h3 {
    font-size: clamp(20px, 5.5vw, 26px) !important;
  }
  .footer-cta-btns {
    flex-direction: column !important;
    gap: 10px !important;
    width: 100% !important;
  }
  .footer-cta-btns .btn {
    width: 100% !important;
  }
  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .wordmark-text {
    font-size: clamp(32px, 9vw, 56px) !important;
  }
}

/* --------------------------------------------------------------------------
   12. 全局交互模态窗与侧边抽屉移动端优化
   -------------------------------------------------------------------------- */
@media screen and (max-width: 900px) {
  .modal-box {
    width: 94vw !important;
    max-width: 94vw !important;
    padding: 20px 14px !important;
    border-radius: 14px !important;
    max-height: 90svh !important;
  }

  /* 课程导学 5 步按钮可横向平滑滚动 */
  .mc-steps {
    display: flex !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    gap: 6px !important;
    margin: 16px 0 12px !important;
  }
  .mc-steps::-webkit-scrollbar {
    display: none !important;
  }
  .mc-steps li {
    flex-shrink: 0 !important;
  }
  .mc-steps button {
    height: 40px !important;
    padding: 0 12px !important;
    font-size: 12.5px !important;
  }

  .mc-view {
    aspect-ratio: 16 / 10 !important;
    min-height: 180px !important;
  }
  .mc-line {
    font-size: 13px !important;
  }
  .mc-sub {
    font-size: 11px !important;
  }
  .mc-foot {
    flex-direction: column !important;
    gap: 10px !important;
    text-align: center !important;
  }
  .mc-foot .btn {
    width: 100% !important;
  }

  /* 智能体详情弹窗 */
  .st-agent-modal-backdrop {
    padding: 12px !important;
  }
  .st-agent-modal-dialog {
    width: 95vw !important;
    max-width: 95vw !important;
    border-radius: 14px !important;
  }
  .st-dialog-header {
    padding: 14px 16px !important;
  }
  .st-dialog-body {
    padding: 14px 16px !important;
    font-size: 13px !important;
  }
  .st-dialog-meta-item {
    flex-direction: column !important;
    gap: 4px !important;
  }
  .st-dialog-meta-label {
    min-width: auto !important;
    font-size: 12px !important;
  }
  .st-dialog-meta-val {
    font-size: 12.5px !important;
  }
  .st-dialog-foot {
    padding: 10px 16px !important;
  }
  .st-dialog-ok-btn {
    width: 100% !important;
    height: 40px !important;
  }
}