/* =============================================
 * 星图主题 (Constellation Theme)
 * 清雨博客 Prian Blog System
 * CSS Prefix: ct-
 * ============================================= */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

:root {
    --ct-void: #000010;
    --ct-deep: #060618;
    --ct-space: #0a0a2a;
    --ct-nebula: #12123a;
    --ct-star-white: #ffffff;
    --ct-star-blue: #aaccff;
    --ct-star-warm: #ffeedd;
    --ct-line-blue: #3355aa;
    --ct-line-glow: #6496ff;
    --ct-accent: #7799ff;
    --ct-accent-dim: #4466aa;
    --ct-red: #ff4466;
    --ct-gold: #ffcc44;
    --ct-text: #c8d0e0;
    --ct-text-dim: #6a7090;
    --ct-text-muted: #404060;
    --ct-border: rgba(100, 150, 255, 0.12);
    --ct-border-bright: rgba(100, 150, 255, 0.25);
    --ct-glass: rgba(10, 10, 42, 0.85);
    --ct-glass-light: rgba(20, 20, 60, 0.6);
    --ct-radius: 8px;
    --ct-radius-sm: 4px;
    --ct-font: 'Space Grotesk', 'Noto Sans SC', -apple-system, sans-serif;
    --ct-mono: 'Space Grotesk', 'Courier New', monospace;
    --ct-max-w: 880px;
    --ct-header-h: 52px;
}

/* ====== Reset & Base ====== */
*, *::before, *::after { box-sizing: border-box; }
body {
    margin: 0; padding: 0;
    font-family: var(--ct-font);
    font-size: 15px;
    line-height: 1.7;
    color: var(--ct-text);
    background: var(--ct-void);
    -webkit-font-smoothing: antialiased;
}
a { color: var(--ct-accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--ct-star-white); }
img { max-width: 100%; height: auto; }
::selection { background: rgba(100, 150, 255, 0.3); color: #fff; }

/* ====== Canvas Sky Background ====== */
#ct-sky {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ====== Page Layout ====== */
.ct-page {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.ct-body {
    flex: 1;
    max-width: var(--ct-max-w);
    width: 100%;
    margin: 0 auto;
    padding: 24px 16px 40px;
}

/* ====== Header ====== */
.ct-header {
    background: var(--ct-glass);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--ct-border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.ct-header-inner {
    max-width: var(--ct-max-w);
    margin: 0 auto;
    padding: 0 16px;
    height: var(--ct-header-h);
    display: flex;
    align-items: center;
    gap: 16px;
}
.ct-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    flex-shrink: 0;
}
.ct-brand-icon {
    font-size: 20px;
    color: var(--ct-accent);
    animation: ctTwinkle 3s ease-in-out infinite;
}
@keyframes ctTwinkle {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}
.ct-brand-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--ct-star-white);
    white-space: nowrap;
    letter-spacing: 1px;
}
.ct-nav {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1;
    overflow-x: auto;
    scrollbar-width: none;
}
.ct-nav::-webkit-scrollbar { display: none; }
.ct-nav-item {
    font-size: 12px;
    color: var(--ct-text-dim);
    padding: 6px 10px;
    border-radius: var(--ct-radius-sm);
    white-space: nowrap;
    transition: all .2s;
    letter-spacing: 0.5px;
}
.ct-nav-item:hover {
    color: var(--ct-star-white);
    background: rgba(100, 150, 255, 0.1);
}
.ct-nav-item--glow {
    color: var(--ct-accent);
    font-weight: 500;
}
.ct-search {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}
.ct-search-input {
    width: 130px;
    height: 30px;
    padding: 0 10px;
    font-size: 12px;
    font-family: var(--ct-font);
    border: 1px solid var(--ct-border);
    border-radius: var(--ct-radius-sm) 0 0 var(--ct-radius-sm);
    outline: none;
    background: rgba(10, 10, 42, 0.6);
    color: var(--ct-text);
    transition: border-color .2s, width .3s;
}
.ct-search-input::placeholder { color: var(--ct-text-muted); }
.ct-search-input:focus {
    border-color: var(--ct-accent-dim);
    width: 170px;
}
.ct-search-btn {
    height: 30px;
    padding: 0 10px;
    font-size: 14px;
    border: 1px solid var(--ct-border);
    border-left: none;
    border-radius: 0 var(--ct-radius-sm) var(--ct-radius-sm) 0;
    background: rgba(10, 10, 42, 0.6);
    cursor: pointer;
    color: var(--ct-text-dim);
    transition: color .2s;
}
.ct-search-btn:hover { color: var(--ct-accent); }

/* ====== Observatory (Article List) ====== */
.ct-observatory { margin-top: 4px; }
.ct-observatory-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0 16px;
    border-bottom: 1px solid var(--ct-border-bright);
    margin-bottom: 20px;
}
.ct-observatory-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--ct-accent);
    letter-spacing: 2px;
}
.ct-observatory-count {
    font-size: 11px;
    color: var(--ct-text-muted);
    font-family: var(--ct-mono);
    letter-spacing: 1px;
}
.ct-observatory-desc {
    font-size: 13px;
    color: var(--ct-text-dim);
    padding: 12px 16px;
    background: var(--ct-glass-light);
    border-radius: var(--ct-radius-sm);
    margin-bottom: 16px;
    border: 1px solid var(--ct-border);
    line-height: 1.6;
}

/* ====== Star Cards ====== */
.ct-starfield {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}
.ct-star-card {
    display: block;
    text-decoration: none;
    color: inherit;
    background: var(--ct-glass);
    backdrop-filter: blur(8px);
    border: 1px solid var(--ct-border);
    border-radius: var(--ct-radius);
    padding: 16px 18px;
    position: relative;
    overflow: hidden;
    transition: all .3s ease;
}
.ct-star-card:hover {
    border-color: var(--ct-border-bright);
    background: rgba(15, 15, 50, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(100, 150, 255, 0.08);
    color: inherit;
}
/* Star dot + glow */
.ct-star-dot {
    width: var(--star-size, 8px);
    height: var(--star-size, 8px);
    border-radius: 50%;
    background: radial-gradient(circle, var(--ct-star-white), var(--ct-star-blue));
    position: absolute;
    top: 14px;
    right: 16px;
    opacity: var(--star-brightness, 0.6);
    z-index: 2;
    box-shadow:
        0 0 calc(var(--star-size, 8px) * 1) rgba(170, 204, 255, 0.4),
        0 0 calc(var(--star-size, 8px) * 2.5) rgba(100, 150, 255, 0.15);
    animation: ctStarPulse 4s ease-in-out infinite;
    animation-delay: var(--star-delay, 0s);
}
@keyframes ctStarPulse {
    0%, 100% { opacity: var(--star-brightness, 0.6); }
    50% { opacity: calc(var(--star-brightness, 0.6) * 0.5); }
}
.ct-star-glow {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(100, 150, 255, 0.06), transparent 70%);
    pointer-events: none;
}
.ct-star-card:hover .ct-star-glow {
    background: radial-gradient(circle, rgba(100, 150, 255, 0.12), transparent 70%);
}
/* Star info */
.ct-star-info { position: relative; z-index: 1; }
.ct-star-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--ct-star-white);
    line-height: 1.5;
    margin-bottom: 6px;
    padding-right: 24px;
    transition: color .2s;
}
.ct-star-card:hover .ct-star-title { color: #fff; }
.ct-star-badge {
    display: inline-block;
    font-size: 9px;
    font-weight: 700;
    color: var(--ct-gold);
    background: rgba(255, 204, 68, 0.12);
    border: 1px solid rgba(255, 204, 68, 0.25);
    padding: 1px 6px;
    border-radius: 2px;
    margin-bottom: 6px;
    letter-spacing: 1px;
}
.ct-star-constellation {
    font-size: 10px;
    color: var(--ct-accent-dim);
    margin-bottom: 6px;
    letter-spacing: 1px;
    font-weight: 500;
}
.ct-star-constellation::before { content: '✦ '; }
.ct-star-desc {
    font-size: 12px;
    color: var(--ct-text-dim);
    line-height: 1.5;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.ct-star-nebulae {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 8px;
}
.ct-nebula {
    display: inline-block;
    font-size: 10px;
    color: var(--ct-accent);
    background: rgba(100, 150, 255, 0.08);
    border: 1px solid rgba(100, 150, 255, 0.15);
    padding: 1px 8px;
    border-radius: 10px;
    white-space: nowrap;
    transition: all .2s;
}
.ct-nebula:hover {
    background: rgba(100, 150, 255, 0.2);
    border-color: var(--ct-accent);
    color: var(--ct-star-white);
}
.ct-nebula--lg {
    font-size: 11px;
    padding: 2px 10px;
}
.ct-star-data {
    display: flex;
    gap: 10px;
    padding-top: 8px;
    border-top: 1px solid var(--ct-border);
}
.ct-data-item {
    font-size: 10px;
    color: var(--ct-text-muted);
    font-family: var(--ct-mono);
    letter-spacing: 0.5px;
}

/* ====== Telescope (Article Detail) ====== */
.ct-telescope {
    background: var(--ct-glass);
    backdrop-filter: blur(8px);
    border: 1px solid var(--ct-border);
    border-radius: var(--ct-radius);
    overflow: hidden;
    margin-bottom: 24px;
    position: relative;
}
.ct-telescope::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--ct-radius);
    box-shadow: inset 0 0 80px rgba(0, 0, 16, 0.5);
    pointer-events: none;
    z-index: 3;
}
.ct-telescope-header {
    padding: 28px 28px 24px;
    border-bottom: 1px solid var(--ct-border);
    position: relative;
}
.ct-telescope-ring {
    position: absolute;
    top: 20px;
    right: 24px;
    width: 56px;
    height: 56px;
    border: 2px solid var(--ct-border-bright);
    border-radius: 50%;
    opacity: 0.4;
}
.ct-telescope-ring::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--ct-accent);
    box-shadow: 0 0 12px rgba(100, 150, 255, 0.5);
}
.ct-telescope-info { max-width: calc(100% - 72px); }
.ct-telescope-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--ct-star-white);
    line-height: 1.4;
    margin: 0 0 10px;
}
.ct-telescope-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    font-size: 12px;
    color: var(--ct-text-dim);
    font-family: var(--ct-mono);
}
.ct-telescope-meta a { color: var(--ct-accent); }
.ct-telescope-meta a:hover { color: var(--ct-star-white); }
.ct-telescope-constellation {
    color: var(--ct-accent);
    font-weight: 500;
}
.ct-telescope-nebulae {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--ct-border);
}
.ct-telescope-nebulae-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--ct-text-muted);
    margin-right: 4px;
    letter-spacing: 1px;
}
/* Article content */
.ct-telescope-body {
    padding: 28px;
    font-size: 15px;
    line-height: 1.85;
    color: var(--ct-text);
    word-break: break-word;
    position: relative;
    z-index: 1;
}
.ct-telescope-body p { margin: 0 0 16px; }
.ct-telescope-body img { border-radius: var(--ct-radius-sm); margin: 8px 0; border: 1px solid var(--ct-border); }
.ct-telescope-body h1, .ct-telescope-body h2, .ct-telescope-body h3,
.ct-telescope-body h4, .ct-telescope-body h5, .ct-telescope-body h6 {
    margin: 28px 0 12px;
    color: var(--ct-star-white);
}
.ct-telescope-body h2 {
    font-size: 18px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--ct-border);
}
.ct-telescope-body h3 { font-size: 16px; }
.ct-telescope-body blockquote {
    margin: 16px 0;
    padding: 12px 20px;
    border-left: 3px solid var(--ct-accent-dim);
    background: rgba(100, 150, 255, 0.05);
    border-radius: 0 var(--ct-radius-sm) var(--ct-radius-sm) 0;
    color: var(--ct-text-dim);
}
.ct-telescope-body code {
    font-family: var(--ct-mono);
    font-size: 13px;
    background: rgba(100, 150, 255, 0.1);
    padding: 2px 6px;
    border-radius: 3px;
    color: var(--ct-star-blue);
}
.ct-telescope-body pre {
    margin: 16px 0;
    padding: 16px;
    background: rgba(0, 0, 16, 0.6);
    color: var(--ct-text);
    border-radius: var(--ct-radius-sm);
    overflow-x: auto;
    font-family: var(--ct-mono);
    font-size: 13px;
    line-height: 1.6;
    border: 1px solid var(--ct-border);
}
.ct-telescope-body pre code { background: none; padding: 0; color: inherit; }
.ct-telescope-body a {
    color: var(--ct-accent);
    border-bottom: 1px dashed var(--ct-accent-dim);
}
.ct-telescope-body a:hover {
    color: var(--ct-star-white);
    border-bottom-color: var(--ct-star-white);
}
.ct-telescope-body ul, .ct-telescope-body ol { margin: 12px 0; padding-left: 24px; }
.ct-telescope-body li { margin-bottom: 4px; }
.ct-telescope-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 13px;
}
.ct-telescope-body th, .ct-telescope-body td {
    padding: 8px 12px;
    border: 1px solid var(--ct-border);
    text-align: left;
}
.ct-telescope-body th {
    background: rgba(100, 150, 255, 0.08);
    font-weight: 600;
    color: var(--ct-star-white);
}
/* Telescope footer */
.ct-telescope-footer {
    padding: 16px 28px;
    border-top: 1px solid var(--ct-border);
    text-align: center;
}
.ct-telescope-end {
    font-size: 11px;
    color: var(--ct-text-muted);
    font-family: var(--ct-mono);
    letter-spacing: 2px;
}

/* ====== Detail Nav ====== */
.ct-detail-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 24px;
}
.ct-detail-prev, .ct-detail-next {
    background: var(--ct-glass);
    backdrop-filter: blur(8px);
    border: 1px solid var(--ct-border);
    border-radius: var(--ct-radius);
    padding: 14px 16px;
    transition: border-color .2s;
}
.ct-detail-prev:hover, .ct-detail-next:hover { border-color: var(--ct-border-bright); }
.ct-detail-next { text-align: right; }
.ct-detail-nav-label {
    display: block;
    font-size: 10px;
    color: var(--ct-text-muted);
    margin-bottom: 4px;
    font-family: var(--ct-mono);
    letter-spacing: 1px;
}
.ct-detail-nav a { font-size: 13px; color: var(--ct-text); font-weight: 500; }
.ct-detail-nav a:hover { color: var(--ct-star-white); }

/* ====== Comments ====== */
.ct-comments {
    background: var(--ct-glass);
    backdrop-filter: blur(8px);
    border: 1px solid var(--ct-border);
    border-radius: var(--ct-radius);
    padding: 24px 28px;
}
.ct-comments-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--ct-star-white);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--ct-border-bright);
    letter-spacing: 1px;
}
.ct-comment-form { margin-bottom: 24px; }
.ct-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 10px;
}
.ct-input {
    width: 100%;
    height: 38px;
    padding: 0 12px;
    font-size: 13px;
    font-family: var(--ct-font);
    border: 1px solid var(--ct-border);
    border-radius: var(--ct-radius-sm);
    outline: none;
    background: rgba(10, 10, 42, 0.6);
    color: var(--ct-text);
    transition: border-color .2s, box-shadow .2s;
}
.ct-input::placeholder { color: var(--ct-text-muted); }
.ct-input:focus {
    border-color: var(--ct-accent-dim);
    box-shadow: 0 0 0 3px rgba(100, 150, 255, 0.1);
}
.ct-input-sm { width: 100px; height: 36px; }
.ct-textarea {
    width: 100%;
    min-height: 100px;
    padding: 12px;
    font-size: 13px;
    font-family: var(--ct-font);
    border: 1px solid var(--ct-border);
    border-radius: var(--ct-radius-sm);
    outline: none;
    background: rgba(10, 10, 42, 0.6);
    color: var(--ct-text);
    resize: vertical;
    transition: border-color .2s, box-shadow .2s;
    margin-bottom: 10px;
}
.ct-textarea::placeholder { color: var(--ct-text-muted); }
.ct-textarea:focus {
    border-color: var(--ct-accent-dim);
    box-shadow: 0 0 0 3px rgba(100, 150, 255, 0.1);
}
.ct-form-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}
.ct-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 38px;
    padding: 0 20px;
    font-size: 13px;
    font-weight: 600;
    font-family: var(--ct-font);
    color: var(--ct-star-white);
    background: var(--ct-accent-dim);
    border: none;
    border-radius: var(--ct-radius-sm);
    cursor: pointer;
    transition: background .2s, transform .1s;
    letter-spacing: 0.5px;
}
.ct-btn:hover { background: var(--ct-line-blue); color: #fff; }
.ct-btn:active { transform: scale(0.98); }
.ct-btn--full { width: 100%; }
.ct-btn--outline {
    background: transparent;
    color: var(--ct-text-dim);
    border: 1px solid var(--ct-border);
}
.ct-btn--outline:hover {
    border-color: var(--ct-accent-dim);
    color: var(--ct-accent);
    background: rgba(100, 150, 255, 0.08);
}
.ct-vcode {
    height: 36px;
    border-radius: var(--ct-radius-sm);
    cursor: pointer;
    border: 1px solid var(--ct-border);
    vertical-align: middle;
}

/* ====== System Comment List ====== */
.ct-comment-list .comment-list,
.comment-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.comment-list .comment-list {
    margin-left: 1.2rem;
    border-left: 1px solid var(--ct-border-bright);
    padding-left: 0.8rem;
}
.comment-list li {
    color: var(--ct-text);
    padding: 14px 0;
    border-bottom: 1px solid var(--ct-border);
    margin: 0;
}
.comment-list li:last-child { border-bottom: none; }
.comment-box { padding: 0; }
.comment-box.comment-admin {
    position: relative;
    padding: 10px 14px;
    background: rgba(100, 150, 255, 0.05);
    border-left: 3px solid var(--ct-accent);
    border-radius: 0 var(--ct-radius-sm) var(--ct-radius-sm) 0;
    margin: 6px 0;
}
.comment-title {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    font-size: 12px;
    margin-bottom: 4px;
}
.comment-user {
    font-weight: 600;
    color: var(--ct-accent);
    display: inline-block;
    font-size: 13px;
}
.comment-admin > .comment-title .comment-user {
    color: var(--ct-gold);
}
.comment-admin > .comment-title .comment-user::after {
    content: ' (台长)';
    font-size: 10px;
    font-weight: 400;
    opacity: 0.7;
}
.comment-time {
    color: var(--ct-text-muted);
    font-size: 11px;
    font-family: var(--ct-mono);
    margin-left: 4px;
}
.comment-reply {
    cursor: pointer;
    color: var(--ct-accent-dim);
    font-size: 11px;
    margin: 0 4px;
    transition: color .2s;
}
.comment-reply:hover { color: var(--ct-accent); }
.comment-title a {
    color: var(--ct-red);
    font-size: 11px;
    margin-left: 4px;
    transition: color .2s;
}
.comment-title a:hover { color: #ff6688; }
.comment-content {
    font-size: 13px;
    line-height: 1.7;
    color: var(--ct-text);
    margin-top: 4px;
}
.comment-content p { margin-bottom: 4px; }
.comment-content p:last-child { margin-bottom: 0; }
.comment-replys {
    margin-left: 8px;
    font-size: 12px;
    color: var(--ct-text-dim);
}
.comment-replys span {
    margin-left: 6px;
    color: var(--ct-accent);
    border: 1px solid var(--ct-accent-dim);
    border-radius: 2px;
    padding: 1px 6px;
    font-size: 11px;
    cursor: pointer;
    transition: all .2s;
}
.comment-replys span:hover {
    background: var(--ct-accent-dim);
    color: var(--ct-star-white);
}
.vcode-img {
    width: 80px;
    height: 28px;
    border: 1px solid var(--ct-border);
    border-radius: var(--ct-radius-sm);
    cursor: pointer;
    vertical-align: middle;
}
.vcode-input {
    width: 80px;
    height: 36px;
    padding: 0 8px;
    font-size: 12px;
    font-family: var(--ct-font);
    border: 1px solid var(--ct-border);
    border-radius: var(--ct-radius-sm);
    outline: none;
    background: rgba(10, 10, 42, 0.6);
    color: var(--ct-text);
}
.vcode-input:focus { border-color: var(--ct-accent-dim); }
.comment { margin-top: 0; }
.comment textarea { height: auto; min-height: 100px; }
.comment p { margin-bottom: 0; }

/* ====== Paging ====== */
.ct-paging { margin-top: 24px; text-align: center; }
.ct-paging .paging {
    display: flex;
    justify-content: center;
    gap: 4px;
    flex-wrap: wrap;
}
.ct-paging .paging a, .ct-paging .paging span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 34px;
    height: 34px;
    padding: 0 8px;
    font-size: 12px;
    font-family: var(--ct-mono);
    border-radius: var(--ct-radius-sm);
    transition: all .2s;
}
.ct-paging .paging-link {
    color: var(--ct-text-dim);
    background: var(--ct-glass);
    border: 1px solid var(--ct-border);
}
.ct-paging .paging-link:hover {
    color: var(--ct-star-white);
    border-color: var(--ct-accent-dim);
    background: rgba(100, 150, 255, 0.1);
}
.ct-paging .paging-active {
    color: var(--ct-star-white);
    background: var(--ct-accent-dim);
    border: 1px solid var(--ct-accent-dim);
    font-weight: 600;
}
.ct-paging .paging-disabled {
    color: var(--ct-text-muted);
    background: transparent;
    border: 1px solid var(--ct-border);
    cursor: not-allowed;
}
.ct-paging .paging-ell {
    color: var(--ct-text-muted);
    border: none;
    background: none;
}

/* ====== Login ====== */
.ct-login {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
}
.ct-login-card {
    background: var(--ct-glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--ct-border);
    border-radius: var(--ct-radius);
    padding: 36px 32px;
    width: 100%;
    max-width: 360px;
    text-align: center;
}
.ct-login-icon {
    font-size: 36px;
    color: var(--ct-accent);
    margin-bottom: 8px;
    animation: ctTwinkle 2s ease-in-out infinite;
}
.ct-login-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--ct-star-white);
    margin-bottom: 4px;
}
.ct-login-subtitle {
    font-size: 10px;
    color: var(--ct-text-muted);
    font-family: var(--ct-mono);
    letter-spacing: 3px;
    margin-bottom: 24px;
}
.ct-login-form { text-align: left; }
.ct-login-form .ct-input { margin-bottom: 10px; }
.ct-vcode-row {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 10px;
}
.ct-vcode-row .ct-input { flex: 1; margin-bottom: 0; }

/* ====== Prompt Page ====== */
.ct-prompt-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
}
.ct-prompt-card {
    background: var(--ct-glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--ct-border);
    border-radius: var(--ct-radius);
    padding: 36px 32px;
    text-align: center;
    max-width: 420px;
    width: 100%;
}
.ct-prompt-icon {
    font-size: 32px;
    color: var(--ct-accent);
    margin-bottom: 16px;
    animation: ctTwinkle 3s ease-in-out infinite;
}
.ct-prompt-text {
    font-size: 15px;
    color: var(--ct-text);
    line-height: 1.7;
    margin-bottom: 20px;
}
.ct-prompt-redirect {
    font-size: 12px;
    color: var(--ct-text-muted);
    font-family: var(--ct-mono);
}
.ct-prompt-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}

/* ====== Empty State ====== */
.ct-empty {
    text-align: center;
    padding: 80px 20px;
}
.ct-empty-icon {
    font-size: 48px;
    color: var(--ct-accent);
    opacity: 0.2;
    margin-bottom: 16px;
    animation: ctTwinkle 4s ease-in-out infinite;
}
.ct-empty-text {
    font-size: 14px;
    color: var(--ct-text-muted);
    letter-spacing: 1px;
}

/* ====== Footer ====== */
.ct-footer {
    border-top: 1px solid var(--ct-border);
    background: var(--ct-glass);
    backdrop-filter: blur(8px);
    margin-top: auto;
}
.ct-footer-inner {
    max-width: var(--ct-max-w);
    margin: 0 auto;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--ct-text-muted);
    font-family: var(--ct-mono);
    letter-spacing: 0.5px;
}
.ct-footer-star {
    font-size: 14px;
    color: var(--ct-accent-dim);
    opacity: 0.5;
}
.ct-footer a { color: var(--ct-text-dim); }
.ct-footer a:hover { color: var(--ct-accent); }

/* ====== System Dialog: Alert/Confirm ====== */
.alert {
    position: fixed;
    top: 0; left: 0;
    z-index: 99990;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
}
.alert-bg {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    opacity: 0.6;
}
.alert-box {
    width: 320px;
    background: var(--ct-deep);
    position: relative;
    margin: auto;
    border-radius: var(--ct-radius);
    border: 1px solid var(--ct-border-bright);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}
.alert-content {
    font-size: 14px;
    color: var(--ct-text);
    padding: 24px 24px 20px;
    text-align: center;
    line-height: 1.6;
    font-family: var(--ct-font);
}
.alert-footer {
    width: 100%;
    border-top: 1px solid var(--ct-border);
    display: flex;
}
.alert-footer > div {
    flex: 1;
    padding: 12px 0;
    text-align: center;
    cursor: pointer;
    font-family: var(--ct-font);
    font-size: 14px;
    transition: all .2s;
    user-select: none;
}
.alert-cancel { color: var(--ct-text-dim); }
.alert-cancel:hover { background: rgba(100, 150, 255, 0.08); color: var(--ct-text); }
.alert-confirm {
    color: var(--ct-red);
    font-weight: 600;
    border-left: 1px solid var(--ct-border);
}
.alert-confirm:hover { background: rgba(255, 68, 102, 0.08); color: #ff6688; }

/* ====== System Dialog: Prompt/Toast ====== */
.prompt {
    background: rgba(0, 0, 16, 0.5);
    position: fixed;
    z-index: 99920;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
}
.prompt-box {
    text-align: center;
    font-size: 14px;
    background: var(--ct-deep);
    position: fixed;
    z-index: 99921;
    top: 0; left: 0;
    width: 100%;
    padding: 16px 20px;
    border-bottom: 2px solid var(--ct-accent-dim);
    font-family: var(--ct-font);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}
.prompt-close {
    font-size: 24px;
    color: var(--ct-text-muted);
    float: right;
    cursor: pointer;
    position: absolute;
    top: 8px; right: 16px;
    user-select: none;
    transition: color .2s;
    line-height: 1;
}
.prompt-close:hover { color: var(--ct-text); }
.prompt-title {
    display: block;
    text-align: center;
    padding-bottom: 6px;
    font-size: 12px;
    letter-spacing: 2px;
    color: var(--ct-accent);
    font-weight: 700;
}
.prompt-content {
    color: var(--ct-text);
    display: inline-block;
    margin-bottom: 6px;
    line-height: 1.6;
}
.prompt-footer { padding-top: 4px; }
.prompt-footer span {
    color: var(--ct-text-dim);
    display: inline-block;
    cursor: pointer;
    font-size: 13px;
    margin: 0 10px;
    transition: color .2s;
}
.prompt-footer span:hover { color: var(--ct-accent); }
.prompt-cancel {}
.prompt-confirm { font-weight: 600; }

/* ====== System Dialog: Pop/Toast ====== */
.pop {
    position: fixed;
    width: 260px;
    margin: auto;
    inset: 0;
    z-index: 999999;
    padding: 0;
    background: rgba(10, 10, 42, 0.92);
    text-align: center;
    color: var(--ct-text);
    border-radius: var(--ct-radius);
    border: 1px solid var(--ct-border-bright);
    backdrop-filter: blur(12px);
    height: fit-content;
    top: 30%;
}
.pop-title {
    padding: 14px 20px;
    display: inline-block;
    font-size: 14px;
    font-family: var(--ct-font);
    line-height: 1.5;
}

/* ====== Entrance Animations ====== */
.ani-up-in {
    animation: ctUpIn .35s ease-out both;
}
@keyframes ctUpIn {
    from { opacity: 0; transform: translateY(-12px); }
    to { opacity: 1; transform: translateY(0); }
}
.ani-down-out {
    animation: ctDownOut .4s ease-in both;
}
@keyframes ctDownOut {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(12px); }
}

/* ====== Responsive ====== */
@media (max-width: 640px) {
    :root { --ct-header-h: auto; }
    .ct-header-inner {
        flex-wrap: wrap;
        padding: 10px 12px;
        gap: 8px;
    }
    .ct-nav { order: 3; width: 100%; padding-bottom: 4px; }
    .ct-search { margin-left: auto; }
    .ct-search-input { width: 100px; }
    .ct-search-input:focus { width: 120px; }
    .ct-body { padding: 16px 12px 32px; }
    .ct-starfield { grid-template-columns: 1fr; }
    .ct-telescope-header { padding: 18px 18px 16px; }
    .ct-telescope-ring { display: none; }
    .ct-telescope-info { max-width: 100%; }
    .ct-telescope-title { font-size: 18px; }
    .ct-telescope-body { padding: 18px; }
    .ct-telescope-footer { padding: 12px 18px; }
    .ct-comments { padding: 18px; }
    .ct-form-row { grid-template-columns: 1fr; }
    .ct-detail-nav { grid-template-columns: 1fr; }
    .ct-login-card { padding: 28px 20px; }
    .ct-observatory-header { padding: 8px 0 12px; }
    /* Comments mobile */
    .comment-list .comment-list { margin-left: 0.8rem; padding-left: 0.5rem; }
    .comment-list li { padding: 10px 0; }
    .comment-title { font-size: 11px; }
    .comment-content { font-size: 13px; }
    /* Alert mobile */
    .alert-box { width: 88%; max-width: 320px; }
    .alert-content { padding: 20px 18px 16px; font-size: 13px; }
    .alert-footer > div { padding: 10px 0; font-size: 13px; }
    /* Prompt mobile */
    .prompt-box { padding: 12px 16px; font-size: 13px; }
    .prompt-title { font-size: 11px; display: block; text-align: center; padding-bottom: 10px; }
    /* Pop mobile */
    .pop { width: 80%; max-width: 260px; }
}
/* ====== 璇勮鍒犻櫎寮圭獥 / sx.alert / sx.confirm 閫傞厤 ====== */
/* DOM: .alert > .alert-bg + .alert-box.ani-up-in > .alert-content + .alert-footer > .alert-cancel + .alert-confirm */
.alert{z-index:99990!important;position:fixed!important;top:0!important;left:0!important;width:100%!important;height:100%!important;display:flex!important;align-items:center!important;justify-content:center!important;padding:24px!important;box-sizing:border-box}
.alert-bg{background:rgba(0,0,0,0.5)!important;opacity:1!important}
.alert-box{position:relative!important;margin:0!important;inset:auto!important;width:360px!important;max-width:90vw!important;background:#fff!important;color:#212121;border:none!important;border-radius:8px!important;box-shadow:0 12px 40px rgba(0,0,0,0.2)!important;overflow:hidden;font-family:inherit;animation:alertIn 0.3s ease both}
@keyframes alertIn{from{opacity:0;transform:translateY(20px) scale(0.96)}to{opacity:1;transform:translateY(0) scale(1)}}
.alert-content{padding:24px!important;text-align:center!important;font-family:inherit!important;font-size:16px!important;line-height:1.7!important;color:inherit!important;border-bottom:1px solid rgba(0,0,0,0.08)!important;background:transparent!important}
.alert-footer{display:flex!important;padding:0!important;border-top:none!important;background:transparent!important}
.alert-cancel,.alert-confirm{flex:1!important;padding:13px 0!important;margin:0!important;font-family:inherit!important;font-size:13px!important;font-weight:600!important;letter-spacing:1px!important;text-transform:uppercase;cursor:pointer;border:none!important;border-radius:0!important;text-align:center;transition:background 0.2s,opacity 0.2s}
.alert-cancel{color:inherit!important;background:transparent!important;border-right:1px solid rgba(0,0,0,0.08)!important}
.alert-cancel:hover{background:rgba(0,0,0,0.04)!important}
.alert-confirm{color:#fff!important;background:#212121!important}
.alert-confirm:hover{background:#424242!important}
@media(max-width:480px){.alert-box{width:100%!important;border-radius:0!important}.alert-content{font-size:15px!important;padding:20px!important}.alert-cancel,.alert-confirm{padding:12px 0!important;font-size:12px!important}}