/* =========================================================
     CSS VARIABLES — 与 index.html 保持一致
     ========================================================= */
  :root {
    color-scheme: light;

    --color-bg:             #FFFFFF;
    --color-bg-alt:         #FBFBFD;
    --color-bg-dark:        #1D1D1F;
    --color-text-primary:   #1D1D1F;
    --color-text-secondary: #6E6E73;
    --color-text-tertiary:  #86868B;
    --color-text-on-dark:   #F5F5F7;
    --color-divider:        #D2D2D7;

    --color-brand:          #05D38E;
    --color-brand-hover:    #0CE59C;
    --color-brand-pressed:  #04B87C;
    --color-link:           #0066CC;
    --color-link-hover:     #0040A0;

    --font-sans:  -apple-system, BlinkMacSystemFont, "SF Pro Display", Inter, Poppins, "Helvetica Neue", Arial, sans-serif;
    --font-cn:    "PingFang SC", "苹方", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;

    --gradient-p1: linear-gradient(30deg, #15EF82 0%, #3CE6E9 100%);

    --font-eyebrow: 14px;
    --font-display-l: clamp(40px, 6vw, 80px);
    --font-body-l: clamp(18px, 1.6vw, 24px);

    --space-2: 8px;   --space-3: 12px;
    --space-4: 16px;  --space-5: 24px;  --space-6: 32px;  --space-8: 48px;

    --radius-full: 9999px;

    --ease-out:    cubic-bezier(0.22, 1, 0.36, 1);
    --dur-fast: 150ms;

    --container-max:        1240px;
    --container-pad-desk:   32px;
    --container-pad-mobile: 20px;
  }
  @media (max-width: 734px) {
    :root { --font-display-l: 32px; }
  }

  *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    font-family: var(--font-cn), var(--font-sans);
    font-size: 16px;
    color: var(--color-text-primary);
    background: var(--color-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    padding-top: 94px;
  }
  .container {
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-pad-desk);
  }

  /* =========================================================
     BUTTONS §5.1 — 与 index.html 保持一致
     ========================================================= */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 44px;
    padding: 0 24px;
    border-radius: var(--radius-full);
    font-family: var(--font-sans);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition:
      background var(--dur-fast) var(--ease-out),
      color var(--dur-fast) var(--ease-out),
      font-weight var(--dur-fast) var(--ease-out),
      transform var(--dur-fast) var(--ease-out);
    white-space: nowrap;
  }
  .btn:active { transform: scale(0.97); }
  .btn:focus-visible { outline: 2px solid var(--color-link); outline-offset: 3px; }

  .btn-primary {
    background: var(--color-text-primary);
    color: #FFFFFF;
  }
  .btn-primary:hover {
    background: #2C2C2E;
    font-weight: 600;
    color: #FFFFFF;
  }
  .btn-primary.on-brand {
    background: var(--color-brand-pressed);
    color: #FFFFFF;
  }
  .btn-primary.on-brand:hover {
    background: var(--color-brand);
    font-weight: 600;
    color: #FFFFFF;
  }

  /* =========================================================
     TOPBAR — 产品切换栏（与 index.html 保持一致）
     ========================================================= */
  .site-topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 201;
    height: 34px;
    background: var(--color-bg-dark);
    display: flex;
    align-items: center;
  }
  .topbar-inner {
    padding-inline: 40px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .topbar-products {
    display: flex;
    gap: var(--space-6);
    align-items: center;
    list-style: none;
  }
  .topbar-products a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 400;
    color: rgba(245,245,247,0.45);
    text-decoration: none;
    font-family: var(--font-sans);
    transition: color var(--dur-fast);
  }
  .topbar-products a:hover {
    color: rgba(245,245,247,0.85);
  }
  .topbar-products li.active a {
    color: rgba(245,245,247,0.45);
    font-weight: 600;
  }
  .topbar-products .dot {
    width: 14px;
    height: 14px;
    border-radius: 4px;
    flex-shrink: 0;
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
  }
  .topbar-products .dot-fakao { background-image: url(images/icon-fakao.png); }
  .topbar-products .dot-fashuo { background-image: url(images/icon-fashuo.png); }
  .topbar-products .dot-cpa { background-image: url(images/icon-cpa.png); }
  .app-download-btn { position: relative; }
  .topbar-products .dot-app {
    position: relative;
    overflow: hidden;
    background: transparent;
  }
  .topbar-products .dot-app img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    transition: opacity 0.8s ease, transform 0.8s ease;
  }
  .topbar-products .dot-app img.dot-app-android {
    opacity: 1;
    animation: jx-topbar-slide-1 7s infinite;
  }
  .topbar-products .dot-app img.dot-app-ios {
    opacity: 0;
    animation: jx-topbar-slide-2 7s infinite;
  }
  @keyframes jx-topbar-slide-1 {
    0%, 40% { opacity: 1; transform: translateY(0); }
    45%, 95% { opacity: 0; transform: translateY(100%); }
    100% { opacity: 1; transform: translateY(0); }
  }
  @keyframes jx-topbar-slide-2 {
    0%, 40% { opacity: 0; transform: translateY(-100%); }
    45%, 95% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(100%); }
  }
  .app-qrcode {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 120px;
    margin-top: 8px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    z-index: 1000;
  }
  .app-download-btn:hover .app-qrcode { display: block; }
  @media (max-width: 734px) {
    .topbar-products a span:not(.dot) { display: none; }
    .topbar-products { gap: var(--space-3); }
  }

  /* =========================================================
     NAV §5.3 — 与 index.html 保持一致
     ========================================================= */
  .site-nav {
    position: fixed;
    top: 34px; left: 0; right: 0;
    z-index: 200;
    height: 68px;
    background: rgba(255,255,255,0.82);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
  }
  .nav-inner {
    padding-inline: 40px;
    height: 100%;
    display: flex;
    align-items: center;
    gap: var(--space-5);
  }
  .nav-logo{display:flex;align-items:center;text-decoration:none;flex-shrink:0;}
  .nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
    margin-left: 40px;
  }
  .nav-links a {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: font-weight var(--dur-fast);
  }
  .nav-links a:hover { font-weight: 600; }
  .nav-links a.nav-active {
    font-weight: 600;
    color: var(--color-brand-pressed);
  }
  .nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-shrink: 0;
    margin-left: auto;
  }
  .nav-actions .btn-primary.on-brand {
    position: relative;
    overflow: hidden;
    background: #FF9500;
    box-shadow: 0 4px 12px rgba(255,149,0,0.30), 0 0 18px rgba(255,149,0,0.18);
  }
  .nav-actions .btn-primary.on-brand:hover {
    background: #E68600;
    box-shadow: 0 8px 22px rgba(255,149,0,0.42), 0 0 28px rgba(255,149,0,0.32);
    transform: translateY(-1px);
  }
  .nav-actions .btn-primary.on-brand > * {
    position: relative;
    z-index: 2;
  }
  .nav-actions .btn-primary.on-brand::before {
    content: '';
    position: absolute;
    top: 0;
    left: -75%;
    width: 55%;
    height: 100%;
    background: linear-gradient(120deg, transparent 0%, rgba(255,255,255,0.55) 50%, transparent 100%);
    transform: skewX(-22deg);
    animation: nav-study-shine 3.6s ease-in-out 1.2s infinite;
    z-index: 1;
    pointer-events: none;
  }
  @keyframes nav-study-shine {
    0% { left: -75%; opacity: 0; }
    10% { opacity: 1; }
    50% { left: 130%; opacity: 1; }
    60%, 100% { left: 130%; opacity: 0; }
  }
  @media (prefers-reduced-motion: reduce) {
    .nav-actions .btn-primary.on-brand::before { animation: none; display: none; }
  }
  .nav-actions .btn-consult {
    background: var(--color-brand);
    color: #fff;
    border-color: transparent;
  }
  .nav-actions .btn-consult:hover {
    background: var(--color-brand-pressed);
    color: #fff;
    border-color: transparent;
  }
  .nav-mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--color-text-primary);
  }
  .nav-mobile-actions { display: none; }
  @media (max-width: 1068px) {
    .nav-links { display: none; }
    .nav-mobile-toggle { display: flex; align-items: center; }
    .nav-inner > .nav-actions > a.btn { display: none; }
    .nav-mobile-actions {
      display: block;
      order: -1;
      width: 100%;
      margin-bottom: 16px;
      padding-bottom: 16px;
      border-bottom: 1px solid rgba(0,0,0,0.08);
    }
    .nav-mobile-actions .nav-actions { margin-left: 0; width: 100%; }
    .nav-mobile-actions .nav-actions .btn { flex: 1; }
  }

  /* =========================================================
     SUBPAGE HERO — 面包屑 + 首屏大标题（参照 fashuo-stories-new.html）
     ========================================================= */
  .subpage-hero {
    position: relative;
    padding-top: 40px;
    padding-bottom: 70px;
    background: radial-gradient(ellipse 70% 60% at 20% 10%, rgba(5, 211, 142, 0.15), transparent 60%),
                radial-gradient(ellipse 60% 50% at 85% 20%, rgba(93, 234, 199, 0.13), transparent 60%),
                radial-gradient(ellipse 80% 60% at 50% 80%, rgba(60, 230, 233, 0.18), transparent 65%),
                linear-gradient(180deg, #FAFAFC 0%, #FFFFFF 100%);
    text-align: center;
  }
  .subpage-hero::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 90px;
    background: linear-gradient(180deg, rgba(255,255,255,0) 0%, #FFFFFF 100%);
    pointer-events: none;
  }
  .subpage-hero .container {
    max-width: 800px;
  }
  .subpage-hero .crumb-row {
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-pad-desk);
  }
  .breadcrumb {
    padding-bottom: 12px;
    font-size: 13px;
    color: var(--color-text-tertiary);
    text-align: left;
    position: relative;
    z-index: 2;
  }
  .breadcrumb a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--dur-fast);
  }
  .breadcrumb a:hover {
    color: var(--color-brand);
  }
  .text-gradient {
    background-clip: text;
    -webkit-background-clip: text;
    color: var(--color-text-primary);
    -webkit-text-fill-color: transparent;
  }
  .grad-p1 {
    background-image: var(--gradient-p1);
  }
  .hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-eyebrow);
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--color-brand-pressed);
    background: rgba(5, 211, 142, 0.08);
    padding: 5px 14px;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-5);
    font-family: var(--font-sans);
  }
  .subpage-hero h1 {
    font-size: var(--font-display-l);
    font-weight: 800;
    line-height: 1.42;
    letter-spacing: -0.025em;
    color: var(--color-text-primary);
    margin-bottom: var(--space-5);
    font-family: var(--font-sans);
    text-wrap: balance;
  }
  .subpage-hero .hero-sub {
    font-size: var(--font-body-l);
    color: var(--color-text-secondary);
    line-height: 1.55;
    margin-bottom: var(--space-8);
    max-width: 700px;
    margin-inline: auto;
    letter-spacing: -0.005em;
  }
  .subpage-hero .hero-sub strong {
    color: var(--color-text-primary);
    font-weight: 600;
  }

  /* =========================================================
     SECTIONS + FADE-IN — 与 fashuo-stories-new.html 保持一致
     ========================================================= */
  section { padding-block: 80px; }
  .subpage-hero + section { margin-top: -70px; }
  .fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
  }
  .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* =========================================================
     NEWS CARD WALL（占位版）— 与 fashuo-stories-new.html 的 XHS 卡片墙保持一致
     ========================================================= */
  .xhs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    align-items: start;
  }
  .xhs-card {
    display: block;
    width: 100%;
    margin-bottom: 12px;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s var(--ease-out);
  }
  .xhs-card:hover { transform: translateY(-3px); }

  .xhs-cover { position: relative; overflow: hidden; }
  .xhs-cover-img {
    width: 100%;
    height: auto;
    aspect-ratio: 21 / 9;
    object-fit: cover;
    display: block;
  }
  .xhs-cover-placeholder {
    aspect-ratio: 21 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
    background: repeating-linear-gradient(45deg, #eceff2 0 10px, #f5f6f8 10px 20px);
    color: var(--color-text-tertiary);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.04em;
  }

  .xhs-body { padding: 8px 10px 10px; }
  .xhs-title {
    font-size: 13px;
    font-weight: 500;
    color: #1a1a1a;
    line-height: 1.5;
    height: 3em;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .xhs-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 6px;
  }
  .xhs-date {
    font-size: 11px;
    color: #999;
    flex-shrink: 0;
  }
  .xhs-tag {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-brand-pressed);
    background: rgba(5, 211, 142, 0.08);
    padding: 2px 9px;
    border-radius: var(--radius-full);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100px;
  }
  @media (max-width: 1024px) {
    .xhs-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  }
  @media (max-width: 700px) {
    .xhs-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .xhs-card { margin-bottom: 10px; }
  }
  @media (max-width: 400px) {
    .xhs-grid { grid-template-columns: 1fr; }
  }

  /* =========================================================
     FOOTER — 与 index.html 保持一致
     ========================================================= */
  .site-footer {
    background: #0e0e10;
    padding-block: 64px 0;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 56px;
  }
  .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
  }
  .footer-brand-name {
    font-size: 17px;
    font-weight: 700;
    color: #fff;
    font-family: var(--font-sans);
  }
  .footer-brand-tagline {
    font-size: 13px;
    color: rgba(255,255,255,0.45);
    line-height: 1.6;
    margin-bottom: 20px;
  }
  .footer-apps {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
  }
  .footer-app-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 10px;
    text-decoration: none;
    background: rgba(255,255,255,0.05);
    transition: background 0.2s, border-color 0.2s;
    min-width: 128px;
  }
  .footer-app-btn:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.3); }
  .footer-app-btn svg { width: 20px; height: 20px; fill: #fff; flex-shrink: 0; }
  .footer-app-btn-text { display: flex; flex-direction: column; }
  .footer-app-label { font-size: 10px; color: rgba(255,255,255,0.5); line-height: 1.2; }
  .footer-app-platform { font-size: 13px; font-weight: 600; color: #fff; line-height: 1.3; }
  .footer-socials {
    display: flex;
    gap: 16px;
  }
  .footer-socials a {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
    text-decoration: none;
    transition: color 0.2s;
  }
  .footer-socials a:hover { color: rgba(255,255,255,0.8); }
  .footer-wechat-btn { position: relative; }
  .footer-wechat-qrcode {
    display: none;
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: auto;
    margin-bottom: 8px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    z-index: 1000;
  }
  .footer-wechat-btn:hover .footer-wechat-qrcode { display: block; }
  .footer-col-title {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    font-family: var(--font-sans);
  }
  .footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
    list-style: none;
  }
  .footer-links a {
    font-size: 13.5px;
    color: rgba(255,255,255,0.45);
    text-decoration: none;
    transition: color 0.2s;
  }
  .footer-links a:hover { color: rgba(255,255,255,0.85); }
  .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 24px 0 20px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
  }
  .footer-legal-company {
    font-size: 0.8125rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: var(--space-2);
    font-weight: 500;
  }
  .footer-legal-records {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.45);
    line-height: 1.8;
    max-width: 680px;
    display: flex;
    flex-wrap: wrap;
    gap: 4px 8px;
    align-items: center;
    margin-bottom: var(--space-2);
  }
  .footer-legal-records a {
    color: rgba(255,255,255,0.45);
    text-decoration: none;
  }
  .footer-legal-records a:hover { color: rgba(255,255,255,0.7); }
  .footer-legal-records .dot { margin: 0 4px; }
  .footer-legal-links {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    padding-top: 2px;
    color: rgba(255,255,255,0.45);
    font-size: 0.75rem;
  }
  .footer-legal-links a {
    font-size: 13px;
    color: rgba(255,255,255,0.45);
    text-decoration: none;
    transition: color 0.2s;
  }
  .footer-legal-links a:hover { color: rgba(255,255,255,0.7); }
  .footer-legal-links .dot { color: rgba(255,255,255,0.2); }
  .footer-tagline {
    font-size: 12px;
    color: rgba(255,255,255,0.45);
    font-style: italic;
    letter-spacing: 0.02em;
    padding: 14px 0 22px;
  }
  @media (max-width: 1068px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
  }
  @media (max-width: 734px) {
    .footer-grid { grid-template-columns: 1fr; gap: 48px; }
  }
@keyframes qr-pop{from{opacity:0;transform:scale(0.88);}to{opacity:1;transform:scale(1);}}