/* ============================================
   LiteQuant - Components
   ============================================ */

.lqnav {
    background: rgba(244, 248, 253, 0.72);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    height: 68px;
    box-shadow: var(--shadow);
}



.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav-brand img {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    box-shadow: 0 4px 14px rgba(20, 148, 211, 0.22);
}
.nav-brand span {
    font-size: 1.2rem;
    font-weight: 800;
    background: linear-gradient(120deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    color: transparent;
}

.nav-right { display: flex; align-items: center; gap: 20px; }
.nav-menu { display: flex; align-items: center; list-style: none; gap: 6px; }
.nav-menu a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 14px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 600;
    border-radius: 999px;
    transition: all 0.2s ease;
}
.nav-menu a:hover { color: var(--secondary); background: rgba(255, 255, 255, 0.86); }
.nav-menu a.active {
    color: var(--secondary);
    background: linear-gradient(120deg, rgba(20, 148, 211, 0.14), rgba(28, 36, 117, 0.14));
    box-shadow: inset 0 0 0 1px rgba(20, 148, 211, 0.14);
}
.nav-menu a.is-loading {
    pointer-events: none;
    opacity: 0.72;
}
.nav-menu a.is-loading i {
    animation: nav-console-pulse 0.8s ease-in-out infinite alternate;
}
@keyframes nav-console-pulse {
    from { transform: scale(0.9); opacity: 0.55; }
    to { transform: scale(1.08); opacity: 1; }
}

.nav-item-dropdown { position: relative; }
.dropdown-menu {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: 220px;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    padding: 14px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.2s ease;
}
.nav-item-dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-item-dropdown.open .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-menu img { width: 100%; border-radius: 10px; margin-bottom: 10px; border: 1px solid var(--border); }
.dropdown-menu p { font-size: 0.82rem; color: var(--text-muted); text-align: center; }

.nav-user-section { display: flex; align-items: center; margin-left: 18px; flex-shrink: 0; }
.btn-login {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 18px;
    background: linear-gradient(125deg, #14c87f 0%, #0ea76b 100%);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(14, 167, 107, 0.32);
    transition: all 0.2s ease;
}
.btn-login:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(14, 167, 107, 0.4); }

.user-menu-dropdown { position: relative; }
.user-avatar-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 46px;
    padding: 5px 7px 5px 5px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.76);
    cursor: pointer;
    box-shadow: 0 7px 20px rgba(24, 65, 108, 0.08);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.user-avatar-btn:hover,
.user-avatar-btn:focus-visible {
    border-color: rgba(20, 148, 211, 0.38);
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 10px 24px rgba(24, 65, 108, 0.14);
}
.user-avatar-btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 4px rgba(20, 148, 211, 0.14), 0 10px 24px rgba(24, 65, 108, 0.14);
}
.user-avatar-btn img { width: 34px; height: 34px; border-radius: 50%; object-fit: cover; }
.user-avatar-btn #navUserName {
    max-width: 90px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-primary);
    font-weight: 700;
}
.nav-user-plan,
.user-status {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    border: 1px solid transparent;
    border-radius: 999px;
    font-weight: 700;
    white-space: nowrap;
}
.nav-user-plan {
    min-height: 24px;
    padding: 3px 8px;
    font-size: 0.72rem;
    line-height: 1;
}
.user-avatar-chevron {
    display: inline-grid;
    place-items: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    color: var(--text-muted);
    background: rgba(126, 151, 181, 0.11);
    font-size: 0.68rem;
    transition: transform 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.user-menu-dropdown.open .user-avatar-chevron {
    color: var(--secondary);
    background: rgba(20, 148, 211, 0.13);
    transform: rotate(180deg);
}

.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 252px;
    max-width: calc(100vw - 16px);
    min-width: 0;
    padding: 7px 0;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.98);
    transform-origin: top right;
    transition: all 0.2s ease;
}
.user-menu-dropdown.open .user-dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.user-dropdown-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0 7px 6px;
    padding: 12px;
    border: 1px solid rgba(20, 148, 211, 0.12);
    border-radius: 14px;
    background: linear-gradient(125deg, rgba(32, 185, 255, 0.09), rgba(49, 72, 255, 0.045));
}
.user-dropdown-header img { width: 42px; height: 42px; border-radius: 50%; object-fit: cover; }
.user-dropdown-header .user-info { display: flex; flex-direction: column; align-items: flex-start; gap: 5px; min-width: 0; }
.user-name {
    max-width: 154px;
    overflow: hidden;
    color: var(--text-primary);
    font-weight: 700;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.user-status { padding: 3px 8px; font-size: 0.75rem; line-height: 1.2; }
.plan-free {
    color: #5d6f86;
    border-color: rgba(111, 132, 157, 0.25);
    background: rgba(111, 132, 157, 0.1);
}
.plan-basic {
    color: #07845c;
    border-color: rgba(16, 185, 129, 0.26);
    background: rgba(16, 185, 129, 0.11);
}
.plan-pro,
.plan-enterprise {
    color: #3155c8;
    border-color: rgba(74, 103, 222, 0.25);
    background: linear-gradient(120deg, rgba(32, 185, 255, 0.13), rgba(85, 92, 239, 0.12));
}
.user-dropdown-divider {
    height: 1px;
    margin: 6px 12px;
    background: linear-gradient(90deg, transparent, rgba(107, 132, 163, 0.24), transparent);
}
.user-dropdown-item {
    width: calc(100% - 14px);
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 2px 7px;
    padding: 11px 12px;
    border: none;
    border-radius: 11px;
    background: none;
    text-decoration: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}
.user-dropdown-item i {
    display: inline-grid;
    place-items: center;
    width: 22px;
    color: var(--text-muted);
}
.user-dropdown-item:hover {
    color: var(--secondary);
    background: var(--primary-soft);
    transform: translateX(2px);
}
.user-dropdown-item:hover i { color: var(--secondary); }
.user-dropdown-item.text-danger { color: var(--danger); }
.user-dropdown-item.text-danger:hover { background: var(--danger-light); }

body.lq-modal-open {
    overflow: hidden;
}

.modal-overlay,
.login-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(5, 12, 24, 0.58);
    backdrop-filter: blur(10px) saturate(145%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.22s ease, visibility 0.22s ease;
}

.modal-overlay.active,
.login-modal-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.modal,
.login-modal {
    position: relative;
    width: min(100%, 520px);
    max-height: min(88vh, 760px);
    overflow: auto;
    border: 1px solid rgba(125, 148, 176, 0.28);
    border-radius: 24px;
    background: rgba(251, 253, 255, 0.96);
    box-shadow: 0 30px 90px rgba(7, 18, 38, 0.28);
    backdrop-filter: blur(20px);
    transform: translateY(18px) scale(0.97);
    opacity: 0;
    transition: transform 0.24s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.2s ease;
}

.modal {
    max-width: 520px;
}

.login-modal {
    max-width: 420px;
}

.modal-overlay.active .modal,
.login-modal-overlay.active .login-modal {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 24px 18px;
    border-bottom: 1px solid rgba(125, 148, 176, 0.22);
    background: linear-gradient(135deg, rgba(32, 185, 255, 0.08), rgba(49, 72, 255, 0.05));
}

.modal-header h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0;
    color: var(--text-primary);
    font-size: 1.16rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.modal-header h3 i {
    color: var(--primary);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 10px;
    padding: 16px 24px 20px;
    border-top: 1px solid rgba(125, 148, 176, 0.2);
    background: rgba(244, 248, 253, 0.72);
}

.modal-close,
.login-modal-close {
    display: inline-grid;
    place-items: center;
    flex: 0 0 auto;
    width: 36px;
    height: 36px;
    padding: 0;
    border: 1px solid rgba(125, 148, 176, 0.24);
    border-radius: 12px;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.76);
    cursor: pointer;
    transition: color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.modal-close:hover,
.login-modal-close:hover {
    color: var(--text-primary);
    background: #fff;
    transform: translateY(-1px);
}

.modal-close:focus-visible,
.login-modal-close:focus-visible {
    outline: none;
    box-shadow: 0 0 0 4px var(--primary-light);
}

.login-modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    z-index: 2;
}

.login-modal-content { padding: 36px 30px 30px; }
.login-header { text-align: center; margin-bottom: 24px; }
.login-brand {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.8rem;
    background: linear-gradient(120deg, #14c87f, #0ea76b);
}
.login-header h2 { color: var(--text-primary); margin-bottom: 6px; }
.login-header p { color: var(--text-muted); font-size: 0.9rem; }
.login-qrcode-section { display: flex; flex-direction: column; align-items: center; }
.qrcode-container {
    width: 260px;
    height: 260px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: #fff;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.8), var(--shadow-sm);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.qrcode-loading { display: flex; flex-direction: column; gap: 10px; align-items: center; color: var(--text-muted); }
.spinner { width: 36px; height: 36px; border: 3px solid var(--gray-200); border-top-color: var(--primary); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.qrcode-expired, .qrcode-scanned { position: absolute; inset: 0; background: rgba(255,255,255,0.95); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; }
#wechatQRCode { width: 220px; height: 220px; overflow: hidden; position: relative; }
#wechatQRCode iframe {
    border: none !important; width: 300px !important; height: 400px !important;
    position: absolute; transform: translate(-13%, -20%) scale(0.75); transform-origin: center center; }

.lq-dialog-icon {
    display: grid;
    place-items: center;
    width: 58px;
    height: 58px;
    margin: 0 auto 14px;
    border-radius: 18px;
    color: #fff;
    font-size: 1.35rem;
    background: linear-gradient(135deg, #20b9ff, #3148ff);
    box-shadow: 0 14px 30px rgba(49, 72, 255, 0.24);
}

.lq-dialog-icon.danger {
    background: linear-gradient(135deg, #ef5c63, #c9363d);
    box-shadow: 0 14px 30px rgba(201, 54, 61, 0.24);
}

.lq-dialog-copy {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.7;
    text-align: center;
}

.lq-dialog-list {
    display: grid;
    gap: 8px;
    margin: 18px 0 0;
    padding: 0;
    list-style: none;
}

.lq-dialog-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid rgba(125, 148, 176, 0.2);
    border-radius: 12px;
    color: var(--text-secondary);
    background: var(--gray-50);
}

.lq-dialog-list li::before {
    content: "";
    width: 7px;
    height: 7px;
    margin-top: 8px;
    flex: 0 0 7px;
    border-radius: 50%;
    background: var(--primary);
}

.lq-confirm-dialog .modal-body {
    padding-top: 28px;
}

.lq-confirm-dialog .modal-footer .btn {
    min-width: 112px;
}

.lq-toast-region {
    position: fixed;
    top: 86px;
    right: 22px;
    z-index: 3000;
    display: grid;
    gap: 10px;
    width: min(360px, calc(100vw - 32px));
    pointer-events: none;
}

.lq-toast {
    display: flex;
    align-items: flex-start;
    gap: 11px;
    padding: 13px 15px;
    border: 1px solid rgba(125, 148, 176, 0.28);
    border-radius: 14px;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 16px 40px rgba(8, 20, 42, 0.16);
    opacity: 0;
    transform: translateX(24px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    backdrop-filter: blur(16px);
}

.lq-toast.show {
    opacity: 1;
    transform: translateX(0);
}

.lq-toast i {
    margin-top: 3px;
    color: var(--primary);
}

.lq-toast.success {
    border-color: rgba(14, 167, 107, 0.34);
}

.lq-toast.success i {
    color: var(--success);
}

.lq-toast.error {
    border-color: rgba(201, 54, 61, 0.34);
}

.lq-toast.error i {
    color: var(--danger);
}

@media (max-width: 560px) {
    .modal-overlay,
    .login-modal-overlay {
        align-items: flex-end;
        padding: 12px;
    }

    .modal,
    .login-modal {
        width: 100%;
        max-height: calc(100vh - 24px);
        border-radius: 22px;
    }

    .modal-header,
    .modal-body {
        padding-left: 18px;
        padding-right: 18px;
    }

    .modal-footer {
        padding: 14px 18px 18px;
    }

    .modal-footer .btn {
        flex: 1 1 140px;
    }

    .login-modal-content {
        padding: 34px 18px 22px;
    }

    .qrcode-container {
        width: min(260px, calc(100vw - 64px));
        height: min(260px, calc(100vw - 64px));
    }

    .lq-toast-region {
        top: 78px;
        right: 16px;
    }
}

.footer {
    text-align: center;
    padding: 44px 24px;
    border-top: 1px solid var(--border);
    margin-top: 88px;
    background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.7) 100%);
}
.footer p { color: var(--text-muted); font-size: 0.88rem; }
.footer a { color: var(--secondary); text-decoration: none; }

.page-header { text-align: center; margin-bottom: 58px; padding-top: 32px; }
.page-header h1 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    line-height: 1.15;
    color: var(--text-primary);
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: -0.03em;
}
.page-header p { font-size: 1.16rem; color: var(--text-muted); max-width: 660px; margin: 0 auto; }

.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 28px; max-width: 920px; margin: 0 auto; }
.pricing-card {
    background: rgba(255,255,255,0.82);
    border-radius: 20px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    backdrop-filter: blur(16px);
    padding: 36px 28px;
    position: relative;
    transition: all 0.25s ease;
}
.pricing-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.pricing-card.featured {
    border-color: rgba(20, 148, 211, 0.5);
    background: linear-gradient(165deg, rgba(255,255,255,0.95), rgba(242,250,255,0.88));
}
.pricing-card .card-header { text-align: center; margin-bottom: 26px; padding-bottom: 26px; border-bottom: 1px solid var(--border); }
.pricing-card .plan-name { font-size: 1.4rem; color: var(--text-primary); margin-bottom: 12px; }
.pricing-card .current-price { font-size: 3rem; font-weight: 800; color: var(--secondary); line-height: 1; }
.pricing-card .current-price .currency { font-size: 1.3rem; vertical-align: super; }
.pricing-card .current-price .period { font-size: 0.95rem; color: var(--text-muted); }
.pricing-card .original-price { color: var(--gray-400); text-decoration: line-through; }
.pricing-card .savings { display: inline-block; margin-top: 10px; padding: 4px 11px; border-radius: 999px; background: var(--warning-light); color: #9a6300; font-weight: 700; font-size: 0.8rem; }
.pricing-card .plan-description { font-size: 0.9rem; color: var(--text-muted); margin-top: 12px; }
.pricing-card .features-list { list-style: none; margin-bottom: 26px; }
.pricing-card .features-list li { display: flex; align-items: center; gap: 10px; padding: 11px 0; color: var(--text-secondary); }
.pricing-card .features-list li i { width: 18px; height: 18px; border-radius: 50%; font-size: 0.6rem; display: inline-flex; align-items: center; justify-content: center; background: var(--success-light); color: var(--success); }
.pricing-card .btn { width: 100%; }

.features-section { margin-top: 84px; padding-top: 56px; border-top: 1px solid var(--border); }
.features-section h2 { text-align: center; color: var(--text-primary); font-size: 1.9rem; margin-bottom: 40px; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }
.feature-item {
    text-align: center;
    padding: 28px 22px;
    background: rgba(255, 255, 255, 0.76);
    border-radius: 18px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}
.feature-icon {
    width: 58px;
    height: 58px;
    margin: 0 auto 16px;
    border-radius: 15px;
    background: linear-gradient(135deg, rgba(20, 148, 211, 0.12), rgba(28, 36, 117, 0.12));
    color: var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.45rem;
}
.feature-item h3 { color: var(--text-primary); margin-bottom: 6px; }
.feature-item p { color: var(--text-muted); font-size: 0.92rem; }

@media (max-width: 768px) {
    .nav-container { padding: 0 8px; }
    .nav-brand { gap: 0; flex-shrink: 0; }
    .nav-brand span,
    .btn-login span,
    .user-avatar-btn span,
    .user-avatar-btn .fa-chevron-down { display: none; }
    .nav-menu { gap: 2px; }
    .nav-menu span { display: none; }
    .nav-menu a {
        width: 40px;
        min-width: 40px;
        height: 40px;
        padding: 8px;
        justify-content: center;
    }
    .nav-right { gap: 4px; min-width: 0; }
    .nav-user-section { margin-left: 0; }
    .btn-login {
        width: 42px;
        height: 42px;
        padding: 0;
        justify-content: center;
    }
    .user-avatar-btn {
        width: 42px;
        height: 42px;
        padding: 3px;
        justify-content: center;
    }
    .page-header p { font-size: 1rem; }
    .pricing-grid { grid-template-columns: 1fr; }
}

@media (max-width: 380px) {
    .nav-container { padding: 0 4px; }
    .nav-menu a { width: 36px; min-width: 36px; }
}