:root {
    --bg: #07111f;
    --bg-soft: #0c1a2e;
    --card: rgba(16, 29, 53, 0.82);
    --card-strong: rgba(18, 37, 66, 0.95);
    --border: rgba(116, 190, 255, 0.18);
    --text: #eaf4ff;
    --muted: #93a8c7;
    --primary: #4dc8ff;
    --primary-2: #64f4d6;
    --accent: #8b7dff;
    --danger: #ff6b81;
    --warning: #ffb454;
    --success: #38d39f;
    --shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
    --radius: 20px;
    --radius-sm: 14px;
    --max-width: 1520px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    background: radial-gradient(circle at top left, rgba(77, 200, 255, 0.12), transparent 24%), radial-gradient(circle at top right, rgba(100, 244, 214, 0.08), transparent 22%), radial-gradient(circle at bottom center, rgba(139, 125, 255, 0.10), transparent 25%), linear-gradient(180deg, #060d18 0%, #091526 48%, #07111f 100%);
    color: var(--text);
    font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    min-height: 100%;
}

    body::before {
        content: "";
        position: fixed;
        inset: 0;
        pointer-events: none;
        background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
        background-size: 28px 28px;
        mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0.12));
    }

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

button,
input,
select,
textarea {
    font: inherit;
}

.app {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 20px 20px 36px;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 16px 20px;
    border: 1px solid var(--border);
    border-radius: 22px;
    background: rgba(8, 19, 36, 0.78);
    backdrop-filter: blur(14px);
    box-shadow: var(--shadow);
    margin-bottom: 22px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-logo {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    background: radial-gradient(circle at 35% 35%, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.15) 18%, transparent 19%), radial-gradient(circle at 65% 62%, rgba(100, 244, 214, 0.95), rgba(100, 244, 214, 0.18) 16%, transparent 17%), radial-gradient(circle at 50% 50%, rgba(77, 200, 255, 0.25), transparent 70%), linear-gradient(135deg, #193760, #0f2140);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 0 30px rgba(77, 200, 255, 0.15);
}

.brand-text h1 {
    margin: 0;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.brand-text p {
    margin: 5px 0 0;
    font-size: 12px;
    color: var(--muted);
}

.nav {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.nav-btn {
    border: 1px solid transparent;
    background: transparent;
    color: var(--muted);
    padding: 10px 16px;
    border-radius: 12px;
    cursor: pointer;
    transition: 0.2s ease;
}

    .nav-btn:hover,
    .nav-btn.active {
        color: var(--text);
        border-color: var(--border);
        background: rgba(77, 200, 255, 0.12);
    }

.top-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.04);
}

.lang-btn {
    border: none;
    background: transparent;
    color: var(--muted);
    padding: 8px 12px;
    border-radius: 999px;
    cursor: pointer;
    transition: 0.2s ease;
}

    .lang-btn.active {
        color: var(--text);
        background: rgba(77, 200, 255, 0.16);
    }

.account-dropdown {
    position: relative;
}

.account-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: 210px;
    padding: 10px 14px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
    cursor: pointer;
    text-align: left;
}

    .account-btn:hover {
        background: rgba(255, 255, 255, 0.08);
    }

    .account-btn strong {
        display: block;
        font-size: 14px;
    }

    .account-btn small {
        display: block;
        color: var(--muted);
        font-size: 12px;
        margin-top: 2px;
    }

.account-arrow {
    margin-left: auto;
    color: var(--muted);
    transition: transform 0.2s ease;
}

.account-dropdown.open .account-arrow {
    transform: rotate(180deg);
}

.account-menu {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    min-width: 220px;
    padding: 8px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: rgba(10, 19, 35, 0.98);
    box-shadow: var(--shadow);
    display: none;
    z-index: 50;
}

.account-dropdown.open .account-menu {
    display: block;
}

.account-menu-item {
    width: 100%;
    text-align: left;
    border: none;
    background: transparent;
    color: var(--text);
    padding: 12px 14px;
    border-radius: 12px;
    cursor: pointer;
}

    .account-menu-item:hover {
        background: rgba(255, 255, 255, 0.06);
    }

    .account-menu-item.danger {
        color: #ffd4da;
    }

.btn {
    border: none;
    cursor: pointer;
    transition: 0.2s ease;
    border-radius: 14px;
    padding: 11px 18px;
    color: var(--text);
}

    .btn:disabled {
        opacity: 0.55;
        cursor: not-allowed;
    }

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    color: #07111f;
    font-weight: 700;
    box-shadow: 0 10px 24px rgba(77, 200, 255, 0.25);
}

    .btn-primary:hover:not(:disabled) {
        transform: translateY(-1px);
    }

.btn-ghost {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
}

.btn-danger {
    background: rgba(255, 107, 129, 0.14);
    border: 1px solid rgba(255, 107, 129, 0.28);
}

.btn-sm {
    padding: 8px 12px;
    border-radius: 12px;
    font-size: 12px;
}

.table-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

    .table-actions .btn {
        white-space: nowrap;
    }

.card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--card);
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
}

.card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.card-title {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
}

.card-subtitle {
    margin: 6px 0 0;
    color: var(--muted);
    font-size: 13px;
}

.page {
    display: none;
}

    .page.active {
        display: block;
    }

.panel {
    padding: 22px;
    margin-bottom: 20px;
}

.section-title {
    margin: 0 0 4px;
    font-size: 22px;
    font-weight: 700;
}

.section-desc {
    margin: 0;
    color: var(--muted);
    font-size: 13px;
}

.metric-grid,
.admin-grid {
    display: grid;
    gap: 18px;
}

.metric-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    margin-bottom: 20px;
}

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

.center-stack,
.admin-stack {
    display: grid;
    gap: 20px;
}

.center-top-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(320px, 0.9fr);
    gap: 20px;
}

.profile-column {
    display: grid;
    gap: 12px;
}

    .profile-column .kv {
        margin: 0;
    }

.recharge-panel {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 100%;
}

.admin-head-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

    .admin-head-actions .btn {
        white-space: nowrap;
    }

.list-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.pager-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: nowrap;
    margin-top: 14px;
}

.pager-group {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: nowrap;
}

    .pager-group .muted,
    .pager-info,
    .page-size-select,
    .pager-group button {
        white-space: nowrap;
        flex-shrink: 0;
    }

select.input,
.page-size-select {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
}

    select.input option,
    .page-size-select option,
    select.input optgroup,
    .page-size-select optgroup {
        background: #0f1b30;
        color: var(--text);
    }

@media (max-width: 1180px) {

    .center-top-grid,
    .history-modal-layout,
    .result-grid {
        grid-template-columns: 1fr;
    }
}

.stat-card {
    padding: 18px;
    border-radius: 18px;
    background: var(--card-strong);
    border: 1px solid var(--border);
}

.stat-label {
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 10px;
}

.stat-value {
    font-size: 28px;
    font-weight: 800;
    margin: 0;
}

.stat-unit {
    font-size: 12px;
    color: var(--muted);
    margin-left: 6px;
}

.result-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 22px;
}

.compare-card,
.profile-card,
.history-card,
.admin-card {
    padding: 22px;
}

.compare-actions,
.list-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 14px;
}

.compare-wrap {
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.28);
}

.compare-stage {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01)), #091321;
    overflow: hidden;
    touch-action: none;
    user-select: none;
    cursor: ew-resize;
}

    .compare-stage.is-loading {
        cursor: progress;
    }

.compare-loading {
    position: absolute;
    inset: 0;
    z-index: 4;
    display: grid;
    place-items: center;
    background: rgba(4, 11, 22, 0.42);
    backdrop-filter: blur(4px);
    pointer-events: auto;
}

.compare-loading-logo {
    width: 128px;
    height: 128px;
    object-fit: contain;
    user-select: none;
    -webkit-user-drag: none;
    transform-origin: center center;
    will-change: transform, filter, opacity;
    filter: drop-shadow(0 0 16px rgba(77, 200, 255, 0.24));
    animation: compare-loading-spin-accent 1.8s infinite;
}

@keyframes compare-loading-spin-accent {
    0% {
        transform: rotate(0deg);
        animation-timing-function: cubic-bezier(0.42, 0, 0.9, 0.7);
    }

    5% {
        transform: rotate(5deg);
        animation-timing-function: cubic-bezier(0.12, 0.78, 0.18, 1);
    }

    95% {
        transform: rotate(355deg);
        animation-timing-function: cubic-bezier(0.25, 0.05, 0.55, 1);
    }

    100% {
        transform: rotate(360deg);
    }
}

.compare-empty {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    text-align: center;
    padding: 20px;
    color: var(--muted);
    line-height: 1.8;
}

.compare-base,
.compare-mask {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    pointer-events: none;
}

.compare-base {
    z-index: 1;
    background: #03070d;
}

.compare-mask {
    background: transparent;
}

.compare-mask-shell {
    position: absolute;
    inset: 0;
    width: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 2;
    clip-path: inset(0 50% 0 0);
}

.compare-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 0;
    z-index: 3;
    pointer-events: none;
}

    .compare-handle::before {
        content: "";
        position: absolute;
        top: 0;
        bottom: 0;
        left: -1px;
        width: 2px;
        background: rgba(255, 255, 255, 0.92);
        box-shadow: 0 0 16px rgba(255, 255, 255, 0.18);
    }

.compare-handle-dot {
    position: absolute;
    top: 50%;
    left: 0;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    background: rgba(8, 19, 36, 0.94);
    border: 2px solid rgba(255, 255, 255, 0.9);
    box-shadow: 0 12px 26px rgba(0, 0, 0, 0.26);
}

    .compare-handle-dot::before,
    .compare-handle-dot::after {
        content: "";
        position: absolute;
        top: 50%;
        width: 8px;
        height: 8px;
        border-top: 2px solid #fff;
        border-right: 2px solid #fff;
    }

    .compare-handle-dot::before {
        left: 12px;
        transform: translateY(-50%) rotate(225deg);
    }

    .compare-handle-dot::after {
        right: 12px;
        transform: translateY(-50%) rotate(45deg);
    }

.compare-slider-wrap {
    display: grid;
    gap: 10px;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.03);
}

.compare-labels {
    display: flex;
    justify-content: space-between;
    color: var(--muted);
    font-size: 12px;
}

input[type="range"] {
    width: 100%;
}

#compareSlider,
#historyCompareSlider {
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    outline: none;
}

    #compareSlider::-webkit-slider-thumb,
    #historyCompareSlider::-webkit-slider-thumb {
        -webkit-appearance: none;
        appearance: none;
        width: 18px;
        height: 18px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--primary), var(--primary-2));
        box-shadow: 0 0 0 4px rgba(77, 200, 255, 0.16);
        cursor: ew-resize;
        border: none;
    }

    #compareSlider::-moz-range-thumb,
    #historyCompareSlider::-moz-range-thumb {
        width: 18px;
        height: 18px;
        border: none;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--primary), var(--primary-2));
        box-shadow: 0 0 0 4px rgba(77, 200, 255, 0.16);
        cursor: ew-resize;
    }

.summary-list {
    display: grid;
    gap: 12px;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 13px 14px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.04);
}

    .summary-item span:first-child {
        color: var(--muted);
    }

    .summary-item strong {
        text-align: right;
        word-break: break-all;
    }

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

.kv {
    padding: 14px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.04);
}

    .kv small {
        display: block;
        color: var(--muted);
        margin-bottom: 8px;
    }

    .kv strong {
        display: block;
        word-break: break-all;
    }

.placeholder-box {
    padding: 18px;
    border-radius: 16px;
    background: rgba(255, 180, 84, 0.08);
    border: 1px solid rgba(255, 180, 84, 0.22);
    color: #ffd79c;
    line-height: 1.8;
}

.table-wrap {
    overflow: auto;
    border-radius: 16px;
    border: 1px solid var(--border);
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 900px;
    background: rgba(255, 255, 255, 0.02);
}

th,
td {
    padding: 12px 14px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 13px;
    vertical-align: top;
}

th {
    color: var(--muted);
    background: rgba(255, 255, 255, 0.03);
    font-weight: 600;
}

tr:hover td {
    background: rgba(255, 255, 255, 0.03);
}

.link-btn {
    background: transparent;
    color: var(--primary);
    border: none;
    cursor: pointer;
    padding: 0;
}

.history-empty,
.admin-empty {
    padding: 26px;
    text-align: center;
    color: var(--muted);
}

.admin-filter-bar {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(180px, 0.8fr) auto;
    gap: 10px;
    margin-bottom: 14px;
}

.admin-filter-reset {
    white-space: nowrap;
}

.muted {
    color: var(--muted);
}

.footer-note {
    margin-top: 18px;
    text-align: center;
    color: var(--muted);
    font-size: 12px;
}

.toast {
    position: fixed;
    top: 68%;
    left: 50%;
    right: auto;
    bottom: auto;
    transform: translate(-50%, -50%) scale(0.96);
    z-index: 80;
    width: min(520px, calc(100vw - 48px));
    min-width: 280px;
    max-width: 90vw;
    padding: 22px 24px;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.06));
    backdrop-filter: blur(22px) saturate(160%);
    -webkit-backdrop-filter: blur(22px) saturate(160%);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.18);
    display: none;
    text-align: center;
    font-size: 17px;
    font-weight: 600;
    line-height: 1.75;
    letter-spacing: 0.2px;
    color: var(--text);
    word-break: break-word;
    pointer-events: none;
    overflow: hidden;
    opacity: 0;
    transition: opacity 0.22s ease, transform 0.22s ease, box-shadow 0.22s ease;
}

    .toast::before {
        content: "";
        position: absolute;
        inset: 0;
        background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.22), transparent 38%), linear-gradient(135deg, rgba(77, 200, 255, 0.10), rgba(100, 244, 214, 0.06));
        pointer-events: none;
    }

    .toast::after {
        content: "";
        position: absolute;
        left: 18px;
        right: 18px;
        top: 0;
        height: 1px;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.55), transparent);
        pointer-events: none;
    }

    .toast.show {
        display: block;
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }

    .toast.success {
        border-color: rgba(56, 211, 159, 0.34);
        box-shadow: 0 24px 60px rgba(0, 0, 0, 0.34), 0 0 0 1px rgba(56, 211, 159, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.18);
    }

        .toast.success::before {
            background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.22), transparent 38%), linear-gradient(135deg, rgba(56, 211, 159, 0.16), rgba(77, 200, 255, 0.08));
        }

    .toast.error {
        border-color: rgba(255, 107, 129, 0.34);
        box-shadow: 0 24px 60px rgba(0, 0, 0, 0.34), 0 0 0 1px rgba(255, 107, 129, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.18);
    }

        .toast.error::before {
            background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.20), transparent 38%), linear-gradient(135deg, rgba(255, 107, 129, 0.16), rgba(139, 125, 255, 0.08));
        }

.modal {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(1, 7, 16, 0.62);
    backdrop-filter: blur(8px);
}

    .modal.show {
        display: flex;
    }

.modal-card {
    width: 100%;
    max-width: 520px;
    border-radius: 24px;
    border: 1px solid var(--border);
    background: rgba(10, 19, 35, 0.96);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.history-modal-card {
    max-width: 1120px;
}

.modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.modal-tabs {
    display: flex;
    gap: 8px;
    padding: 16px 20px 0;
}

.tab-btn {
    flex: 1;
    padding: 11px 14px;
    border-radius: 12px;
    border: 1px solid transparent;
    background: rgba(255, 255, 255, 0.04);
    color: var(--muted);
    cursor: pointer;
}

    .tab-btn.active {
        color: var(--text);
        border-color: var(--border);
        background: rgba(77, 200, 255, 0.12);
    }

.modal-body {
    padding: 18px 20px 22px;
}

.form {
    display: none;
    gap: 12px;
}

    .form.active {
        display: grid;
    }

.form-row {
    display: grid;
    gap: 7px;
}

    .form-row label {
        color: var(--muted);
        font-size: 13px;
    }

.input {
    width: 100%;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.10);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    outline: none;
}

    .input:focus {
        border-color: rgba(77, 200, 255, 0.42);
        box-shadow: 0 0 0 3px rgba(77, 200, 255, 0.10);
    }

.verify-code-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
}

    .verify-code-row .input {
        min-width: 0;
    }

    .verify-code-row .btn {
        min-width: 128px;
        white-space: nowrap;
    }

.modal-foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-top: 6px;
}

.modal-foot-center {
    justify-content: center;
}

.auth-submit-btn {
    min-width: 200px;
    padding: 14px 30px;
    font-size: 16px;
}

.close-btn {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--muted);
    cursor: pointer;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    padding: 6px 10px;
    font-size: 12px;
    background: rgba(77, 200, 255, 0.12);
    border: 1px solid var(--border);
    color: var(--text);
}

.status-pill {
    display: inline-block;
    padding: 5px 10px;
    border-radius: 999px;
    font-size: 12px;
}

.status-success {
    color: #cbffe6;
    background: rgba(56, 211, 159, 0.14);
    border: 1px solid rgba(56, 211, 159, 0.28);
}

.status-warning {
    color: #ffe8bf;
    background: rgba(255, 180, 84, 0.14);
    border: 1px solid rgba(255, 180, 84, 0.24);
}

.history-modal-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 20px;
}

.history-modal-panel {
    padding: 0;
}

@media (max-width: 1180px) {

    .result-grid,
    .history-modal-layout {
        grid-template-columns: 1fr;
    }

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

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

    .admin-filter-bar {
        grid-template-columns: 1fr;
    }

    .topbar {
        flex-direction: column;
        align-items: stretch;
    }

    .top-actions {
        justify-content: flex-start;
    }

    .lang-switch {
        align-self: flex-start;
    }

    .account-dropdown {
        width: 100%;
    }

    .account-btn {
        width: 100%;
    }

    .account-menu {
        left: 0;
        right: auto;
        width: 100%;
    }
}

@media (max-width: 640px) {
    .app {
        padding: 14px 14px 28px;
    }

    .metric-grid,
    .profile-grid {
        grid-template-columns: 1fr;
    }

    .panel,
    .compare-card,
    .profile-card,
    .history-card,
    .admin-card {
        padding: 16px;
    }

    .modal-body,
    .modal-head,
    .modal-tabs {
        padding-left: 16px;
        padding-right: 16px;
    }

    .compare-handle-dot {
        width: 40px;
        height: 40px;
    }

    .auth-submit-btn {
        width: 100%;
        min-width: 0;
    }

    .verify-code-row {
        grid-template-columns: 1fr;
    }

        .verify-code-row .btn {
            width: 100%;
        }
}

.required-tip {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 6px;
    color: var(--muted);
    font-size: 12px;
}

.required-star {
    color: var(--danger);
    font-weight: 700;
    font-size: 14px;
}

.required-label::after {
    content: " *";
    color: var(--danger);
    font-weight: 700;
}

#analysisPage .compare-slider-wrap {
    display: none;
}

#historyModal .compare-slider-wrap {
    display: none;
}