/* 首页手机端版式（test 站 index.html） */
@media (max-width: 768px) {
    html.home-page-root,
    body.home-page {
        overflow-x: hidden;
        overflow-y: auto !important;
        max-height: none !important;
        height: auto;
        min-height: 100%;
        -webkit-overflow-scrolling: touch;
    }

    body.home-page .navbar {
        padding:
            max(0.45rem, env(safe-area-inset-top))
            max(12px, env(safe-area-inset-right))
            0.45rem
            max(12px, env(safe-area-inset-left));
        gap: 8px;
        align-items: center;
    }

    body.home-page .navbar .logo {
        width: 132px;
        height: 2rem;
        flex-shrink: 0;
    }

    body.home-page .nav-right {
        gap: 8px;
        max-width: calc(100% - 140px);
        justify-content: flex-end;
        align-items: center;
    }

    /* 已登录窄屏：仅用户名 + 退出（由 JS 加 .home-mobile-nav） */
    body.home-page.home-mobile-nav .navbar .nav-right {
        gap: 10px;
        max-width: none;
        flex-wrap: nowrap;
    }

    body.home-page.home-mobile-nav .navbar .nav-right > *:not(#userDisplay):not(#logoutBtn) {
        display: none !important;
    }

    body.home-page.home-mobile-nav .navbar .nav-right #userDisplay {
        display: inline-flex !important;
        width: auto !important;
        max-width: min(48vw, 11rem);
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        font-size: 0.875rem !important;
        line-height: 1.3 !important;
        color: var(--text-main) !important;
        padding: 0 !important;
        margin: 0 !important;
        border: none !important;
        background: transparent !important;
        min-height: 0 !important;
        height: auto !important;
    }

    body.home-page.home-mobile-nav .navbar .nav-right #userDisplay::before,
    body.home-page.home-mobile-nav .navbar .nav-right #userDisplay::after {
        display: none !important;
        content: none !important;
    }

    body.home-page.home-mobile-nav .navbar .nav-right #logoutBtn {
        width: auto !important;
        min-width: 3.25rem !important;
        height: 2.125rem !important;
        padding: 0 14px !important;
        font-size: 0.875rem !important;
        line-height: 1.2 !important;
        color: var(--text-main) !important;
        border: 1px solid var(--border-color) !important;
        border-radius: 8px !important;
        background: transparent !important;
        flex-shrink: 0;
        letter-spacing: normal !important;
    }

    body.home-page.home-mobile-nav .navbar .nav-right #logoutBtn::before,
    body.home-page.home-mobile-nav .navbar .nav-right #logoutBtn::after {
        display: none !important;
        content: none !important;
    }

    body.home-page .feature-card[data-mobile-desktop-only],
    body.home-page a.sub-item[data-mobile-desktop-only] {
        cursor: pointer;
        opacity: 0.5;
    }

    body.home-page main.main-stage {
        height: auto;
        min-height: 100vh;
        max-height: none;
        overflow: visible;
        justify-content: flex-start;
        padding:
            calc(3.25rem + env(safe-area-inset-top))
            max(14px, env(safe-area-inset-right))
            calc(1.25rem + env(safe-area-inset-bottom))
            max(14px, env(safe-area-inset-left));
    }

    body.home-page .main-stage .hero,
    body.home-page .main-stage .feature-grid,
    body.home-page .main-stage .home-chatbot-entry {
        transform: none;
        width: 100%;
    }

    body.home-page .hero {
        margin-bottom: 1.25rem;
    }

    body.home-page .hero-logo-img {
        height: 4.5rem;
        max-width: min(320px, 88vw);
    }

    body.home-page .hero p {
        font-size: 0.9375rem;
        line-height: 1.5;
        padding: 0 4px;
    }

    body.home-page .feature-grid {
        grid-template-columns: 1fr;
        gap: 0.875rem;
        max-width: none;
    }

    body.home-page .feature-card {
        padding: 1.125rem 1rem;
        border-radius: 14px;
    }

    body.home-page .feature-card:hover {
        transform: none;
    }

    body.home-page .card-icon {
        margin-bottom: 0.625rem;
    }

    body.home-page .card-icon-svg {
        width: 2rem;
        height: 2rem;
    }

    body.home-page .card-title {
        font-size: 1.75rem;
        margin-bottom: 0.75rem;
    }

    body.home-page .sub-menu {
        gap: 0.5rem;
        width: 100%;
    }

    body.home-page .sub-item,
    body.home-page a.sub-item {
        font-size: 0.9375rem;
        min-height: 44px;
        padding: 10px 14px;
        border-radius: 10px;
        background: rgba(255, 255, 255, 0.65);
        border: 1px solid var(--border-color);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        flex: 1 1 calc(50% - 0.5rem);
        max-width: calc(50% - 0.25rem);
        box-sizing: border-box;
    }

    body.home-page a.sub-item:active {
        background: rgba(var(--nav-icon-rgb, 116, 123, 255), 0.12);
        border-color: var(--accent);
        color: var(--accent);
    }

    body.home-page .home-chatbot-entry {
        margin-top: 0.875rem;
    }

    body.home-page .home-chat-btn {
        width: 3.25rem;
        height: 3.25rem;
        font-size: 0.6875rem;
    }

    body.home-page .footer {
        position: relative;
        bottom: auto;
        margin-top: 1.25rem;
        padding: 0 8px 0.5rem;
        text-align: center;
        white-space: normal;
        line-height: 1.45;
        opacity: 0.85;
    }

    body.home-page #authModal .modal-content {
        width: calc(100% - 24px);
        max-width: none;
        max-height: calc(100vh - 32px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
        overflow-y: auto;
        margin: max(12px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
        padding: 24px 18px 22px;
    }

    body.home-page #authModal .form-group input,
    body.home-page #authModal .password-input-wrapper input {
        font-size: 16px;
    }

    body.home-page #authModal .submit-btn {
        min-height: 48px;
    }
}

@media (max-width: 380px) {
    body.home-page .navbar .logo {
        width: 112px;
    }

    body.home-page .nav-right {
        max-width: calc(100% - 120px);
    }

    body.home-page .sub-item,
    body.home-page a.sub-item {
        flex: 1 1 100%;
        max-width: 100%;
    }
}