:root {
    --bg: #060d18;
    --bg-deep: #02060c;
    --panel: rgba(9, 20, 39, 0.84);
    --line: rgba(104, 223, 255, 0.16);
    --line-strong: rgba(104, 223, 255, 0.34);
    --ink: #e7f5ff;
    --muted: #8ca8c2;
    --primary: #69dfff;
    --accent: #19f0c1;
    --danger: #ff7f96;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Microsoft YaHei", sans-serif;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(105, 223, 255, 0.12), transparent 24%),
        radial-gradient(circle at top right, rgba(110, 123, 255, 0.12), transparent 24%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(105, 223, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(105, 223, 255, 0.04) 1px, transparent 1px);
    background-size: 36px 36px;
    opacity: 0.55;
}

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

.member-shell,
.container,
.hero {
    width: min(100% - 16px, 1120px);
    margin: 0 auto;
}

.auth-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 14px;
}

.auth-card,
.panel {
    position: relative;
    background: linear-gradient(180deg, rgba(9, 20, 39, 0.9), rgba(5, 12, 24, 0.92));
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: 0 18px 48px rgba(0, 0, 0, 0.34);
}

.auth-card {
    width: min(100%, 480px);
    padding: 22px 18px;
}

.member-shell {
    padding: 14px 0 28px;
}

.member-header,
.nav-links,
.auth-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.member-header {
    margin-bottom: 18px;
}

.brand {
    margin-bottom: 6px;
    color: var(--primary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 700;
}

.nav-links a {
    padding: 11px 14px;
    border-radius: 14px;
    border: 1px solid rgba(104, 223, 255, 0.12);
    color: var(--muted);
    background: rgba(255, 255, 255, 0.02);
}

.grid-two {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.panel {
    padding: 20px 16px;
    margin-bottom: 14px;
}

label {
    display: block;
    margin: 12px 0 8px;
    font-weight: 700;
    color: #c6def3;
}

input,
textarea {
    width: 100%;
    border: 1px solid rgba(104, 223, 255, 0.18);
    border-radius: 14px;
    padding: 12px 14px;
    background: rgba(5, 12, 24, 0.88);
    color: var(--ink);
    font: inherit;
}

button {
    cursor: pointer;
    font: inherit;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 13px 18px;
    border-radius: 14px;
    border: 1px solid var(--line-strong);
    background: linear-gradient(90deg, rgba(105, 223, 255, 0.22), rgba(25, 240, 193, 0.18));
    color: var(--ink);
}

form .button {
    margin-top: 18px;
}

.auth-links {
    margin-top: 18px;
    color: var(--muted);
}

.stack-form {
    display: grid;
}

.table {
    width: 100%;
    border-collapse: collapse;
    display: block;
    overflow-x: auto;
}

.table th,
.table td {
    padding: 12px 10px;
    text-align: left;
    border-bottom: 1px solid rgba(104, 223, 255, 0.08);
    white-space: nowrap;
}

.flash,
.flash-panel {
    padding: 12px 14px;
    border-radius: 14px;
    margin-bottom: 16px;
    border: 1px solid var(--line);
}

.flash.success,
.flash-panel.success {
    background: rgba(25, 240, 193, 0.1);
    color: #a8f8e6;
}

.flash.error,
.flash-panel.error {
    background: rgba(255, 127, 150, 0.12);
    color: #ffc4cf;
    border-color: rgba(255, 127, 150, 0.2);
}

strong {
    color: #dff4ff;
}

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

@media (min-width: 768px) {
    .member-shell,
    .container,
    .hero {
        width: min(100% - 28px, 1120px);
    }

    .auth-page {
        padding: 24px;
    }

    .auth-card {
        padding: 32px;
    }

    .member-header {
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    .nav-links,
    .auth-links {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .grid-two {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 18px;
    }

    .panel {
        padding: 28px;
        margin-bottom: 18px;
    }

    .button {
        width: auto;
    }

    form .button {
        width: 100%;
    }
}