:root {
    --bg: #061b52;
    --bg-panel: #0c2d74;
    --bg-panel-soft: #123989;
    --line: #4463ac;
    --text: #f5f7ff;
    --muted: #b9c6eb;
    --accent: #ffe500;
    --accent-soft: #f7d74c;
    --danger: #ff8e72;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Georgia", "SimSun", serif;
    background: linear-gradient(180deg, #031337 0%, var(--bg) 45%, #04153f 100%);
    color: var(--text);
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.wrap {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    border-bottom: 2px solid var(--accent);
    background: rgba(3, 14, 46, 0.96);
    position: sticky;
    top: 0;
}

.header-inner,
.page-head {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
}

.header-inner {
    padding: 16px 0;
}

.site-brand {
    display: inline-block;
    color: var(--accent);
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 1px;
}

.site-tagline,
.muted,
label small {
    color: var(--muted);
}

.site-nav {
    display: flex;
    gap: 16px;
    align-items: center;
}

.site-nav form {
    margin: 0;
}

.link-button,
.button {
    border: 1px solid var(--accent);
    background: var(--accent);
    color: #151a2e;
    padding: 10px 14px;
    font: inherit;
    cursor: pointer;
    box-shadow: 2px 2px 0 #000;
}

.button-secondary {
    background: transparent;
    color: var(--accent);
}

.main-shell {
    padding: 24px 0 48px;
}

.panel {
    background: rgba(12, 45, 116, 0.92);
    border: 1px solid var(--line);
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.35);
    padding: 20px;
    margin-bottom: 20px;
}

.hero-panel {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: center;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.grid-two {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.forum-table {
    width: 100%;
    border-collapse: collapse;
}

.forum-table th,
.forum-table td {
    padding: 12px;
    border: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

.forum-table thead {
    background: rgba(255, 229, 0, 0.12);
}

.category-title {
    padding: 10px 12px;
    margin-top: 18px;
    background: rgba(255, 229, 0, 0.14);
    border-left: 4px solid var(--accent);
    font-weight: 700;
}

.topic-list,
.notice-list,
.reply-stack {
    list-style: none;
    margin: 0;
    padding: 0;
}

.topic-list li,
.notice-list li {
    padding: 10px 0;
    border-bottom: 1px dashed var(--line);
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.stack-form {
    display: grid;
    gap: 14px;
}

.stack-form label {
    display: grid;
    gap: 8px;
}

input,
textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--line);
    background: #081c4e;
    color: var(--text);
    font: inherit;
}

.form-panel {
    max-width: 760px;
}

.post-shell,
.reply-item {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 16px;
    padding: 16px 0;
    border-top: 1px solid var(--line);
}

.author-card {
    background: rgba(255, 229, 0, 0.08);
    border: 1px solid var(--line);
    padding: 12px;
}

.post-content {
    line-height: 1.7;
}

.tag {
    display: inline-block;
    margin-right: 8px;
    padding: 2px 6px;
    background: var(--accent);
    color: #19213d;
    font-size: 12px;
}

.tag-muted {
    background: #93a0c8;
}

.message-stack {
    display: grid;
    gap: 10px;
}

.message {
    padding: 10px 12px;
    border: 1px solid var(--line);
    background: rgba(255, 229, 0, 0.15);
}

.message.error {
    border-color: var(--danger);
    background: rgba(255, 142, 114, 0.16);
}

ul.errorlist {
    margin: 0;
    padding-left: 18px;
    color: #ffd1c6;
}

@media (max-width: 900px) {
    .grid-two,
    .post-shell,
    .reply-item,
    .hero-panel,
    .header-inner,
    .page-head,
    .topic-list li,
    .notice-list li {
        grid-template-columns: 1fr;
        flex-direction: column;
    }

    .site-nav {
        flex-wrap: wrap;
        justify-content: flex-start;
    }
}