@import url("https://fonts.googleapis.com/css2?family=Lexend:wght@400;700&display=swap");

:root {
    --primary: #d3b65e;
    --onPrimary: #3c2f00;
    --primaryContainer: #574500;
    --onPrimaryContainer: #ffe086;
    --secondary: #e9c16c;
    --onSecondary: #3f2e00;
    --background: #131318;
    --onBackground: #e4e1e9;
    --surface: #131318;
    --onSurface: #e4e1e9;
    --surfaceContainer: #1f1f25;
    --surfaceContainerHigh: #2a292f;
    --outline: #979080;
}

/* 星空画布层 */
#stars-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    background-color: #0a0a0f;
}

body {
    background-color: transparent;
    color: var(--onBackground);
    font-family: "Lexend", sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

.header {
    text-align: center;
    padding: 2rem 1rem;
    background-color: var(--surfaceContainerHigh);
    position: relative;
    z-index: 1;
}

.header h1 {
    font-size: 2.5rem;
    color: var(--primary);
    margin: 0;
}

.tagline {
    margin-top: 0.5rem;
    color: var(--onSurface);
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 2rem 1rem;
    position: relative;
    z-index: 1;
}

h2 {
    color: var(--secondary);
    margin-bottom: 1rem;
    text-align: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.feature-card {
    background-color: var(--surfaceContainer);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card h3 {
    color: var(--primary);
    margin-top: 0;
}

.download {
    text-align: center;
    margin: 3rem 0;
}

.download-actions {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.download-btn {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--primary);
    color: var(--onPrimary);
    font-weight: bold;
    border-radius: 8px;
    text-decoration: none;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.download-btn:hover {
    background-color: var(--secondary);
    transform: scale(1.05);
}

.download-btn.disabled {
    pointer-events: none;
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.community {
    margin: 3rem 0;
    text-align: center;
}

.footer {
    text-align: center;
    padding: 1rem;
    background-color: var(--surfaceContainerHigh);
    color: var(--onSurface);
    position: relative;
    z-index: 1;
}

.footer a {
    color: var(--primary);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

.release-banner {
    width: 100%;
    margin: 0;
    padding: 24px 32px;
    background: linear-gradient(90deg, #7c3aed, #d946ef, #06b6d4, #22c55e);
    color: #ffffff;
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    border: none;
    border-radius: 0;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    display: grid;
    place-items: center;
    box-sizing: border-box;
}

.release-banner p {
    margin: 0;
    display: inline-flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: center;
    gap: 0.5rem;
}

.release-banner strong {
    color: #ffffff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.35);
}

#release-countdown {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.5px;
}

.release-banner.released {
    background: linear-gradient(90deg, #10b981, #22c55e, #34d399);
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.35);
}

.amongus-download-section {
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 2px solid var(--surfaceContainerHigh);
}

.amongus-download-section h2 {
    color: var(--secondary);
    margin-bottom: 0.5rem;
    text-align: center;
}

.version-badge {
    display: inline-block;
    background-color: var(--primaryContainer);
    color: var(--onPrimaryContainer);
    padding: 0.35rem 1rem;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.95rem;
    margin: 0.5rem 0 1.2rem;
    letter-spacing: 0.3px;
}

.version-badge strong {
    color: var(--primary);
    font-size: 1.05rem;
}

.amongus-download-btn {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: #22c55e;
    color: #ffffff;
    font-weight: bold;
    border-radius: 8px;
    text-decoration: none;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 14px rgba(34, 197, 94, 0.3);
    position: relative;
}

.amongus-download-btn:hover {
    background-color: #16a34a;
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.45);
}

.amongus-download-btn .file-format {
    display: block;
    font-size: 0.75rem;
    font-weight: 400;
    opacity: 0.85;
    margin-top: 2px;
    letter-spacing: 0.5px;
}

.install-notice {
    background-color: var(--surfaceContainer);
    border-left: 4px solid var(--primary);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    margin: 1.5rem auto 0;
    max-width: 600px;
    text-align: left;
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--onSurface);
}

.install-notice p {
    margin: 0;
}

.install-notice strong {
    color: var(--secondary);
}

.install-notice a {
    color: var(--primary);
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.2s ease;
}

.install-notice a:hover {
    color: var(--secondary);
    text-decoration: underline;
}

.install-notice .notice-icon {
    font-size: 1.3rem;
    margin-right: 0.35rem;
    vertical-align: -2px;
}

.announcement{
    display:flex; gap:14px; align-items:flex-start;
    border-radius:14px; padding:18px 22px 18px 20px;
    margin-bottom:32px; border:1px solid;
    position:relative; overflow:hidden;
    animation: announce-in .45s ease;
}
.announcement::before{
    content:""; position:absolute; left:0; top:0; bottom:0; width:4px;
}
.announcement-icon{
    font-size:1.25rem; line-height:1.5; flex-shrink:0;
}
.announcement-body{
    font-size:.96rem; line-height:1.75; min-width:0;
    word-break:break-word;
}
.announcement-body a{
    text-decoration:underline; text-underline-offset:3px; word-break:break-all;
}

.announcement-info{
    background:rgba(34,211,238,.08); border-color:rgba(34,211,238,.35); color:#d3f4fa;
}
.announcement-info::before{ background:#22d3ee; }
.announcement-info a{ color:#22d3ee; }

.announcement-success{
    background:rgba(34,197,94,.08); border-color:rgba(34,197,94,.35); color:#d2f5dd;
}
.announcement-success::before{ background:#22c55e; }
.announcement-success a{ color:#4ade80; }

.announcement-warning{
    background:rgba(250,204,21,.09); border-color:rgba(250,204,21,.35); color:#fdf3c9;
}
.announcement-warning::before{ background:#facc15; }
.announcement-warning a{ color:#facc15; }

.announcement-danger{
    background:rgba(239,68,68,.09); border-color:rgba(239,68,68,.35); color:#fdd5d5;
}
.announcement-danger::before{ background:#ef4444; }
.announcement-danger a{ color:#ff8a8a; }

@keyframes announce-in{
    from{ opacity:0; transform:translateY(-6px); }
    to{ opacity:1; transform:translateY(0); }
}

@media (max-width: 640px) {
    .release-banner {
        padding: 16px 20px;
        font-size: 1.25rem;
        box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
    }
    .install-notice {
        margin: 1.2rem 0.5rem 0;
        padding: 0.85rem 1rem;
        font-size: 0.85rem;
    }
    .amongus-download-btn {
        padding: 0.85rem 1.5rem;
        font-size: 0.95rem;
    }
    .version-badge {
        font-size: 0.85rem;
        padding: 0.3rem 0.8rem;
    }
}

@media (max-width: 420px) {
    .release-banner {
        padding: 12px 16px;
        font-size: 1.1rem;
    }
    .release-banner p {
        display: block;
    }
    #release-countdown {
        display: block;
        margin-top: 4px;
    }
}

.dl-modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(10, 10, 15, .72);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: dl-overlay-in .22s ease;
}
.dl-modal-overlay.show {
    display: flex;
}
@keyframes dl-overlay-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.dl-modal {
    position: relative;
    width: 100%;
    max-width: 460px;
    padding: 30px 30px 26px;
    border-radius: 18px;
    background:
        linear-gradient(160deg, #1a1a22 0%, #16161c 100%) padding-box,
        linear-gradient(135deg, #d3b65e 0%, #e9c16c 40%, #574500 100%) border-box;
    border: 2px solid transparent;
    box-shadow:
        0 0 0 1px rgba(211, 182, 94, .15),
        0 24px 70px rgba(0, 0, 0, .75),
        0 0 60px rgba(211, 182, 94, .12),
        inset 0 0 40px rgba(211, 182, 94, .05);
    color: var(--onBackground, #e4e1e9);
    font-family: "Lexend", sans-serif;
    overflow: hidden;
    animation: dl-modal-in .38s cubic-bezier(.16, 1, .3, 1);
}
@keyframes dl-modal-in {
    from { opacity: 0; transform: translateY(24px) scale(.94); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

.dl-modal::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #d3b65e, #ffe086, #d3b65e);
    opacity: .9;
}

.dl-modal-head {
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px dashed rgba(211, 182, 94, .28);
}
.dl-modal-icon {
    display: block;
    font-size: 2.2rem;
    margin-bottom: 8px;
    animation: dl-modal-pulse 1.6s ease-in-out infinite;
}
@keyframes dl-modal-pulse {
    0%, 100% { transform: scale(1); }
    50%      { transform: scale(1.18); }
}
.dl-modal-head strong {
    font-size: 1.2rem;
    color: var(--primary, #d3b65e);
    letter-spacing: .02em;
    font-weight: 700;
}

.dl-modal-body {
    font-size: .96rem;
    line-height: 1.85;
    color: var(--onSurface, #e4e1e9);
    text-align: center;
}
.dl-modal-body p { margin: 0 0 10px; }
.dl-modal-body p:last-child { margin-bottom: 0; }
.dl-modal-body strong { color: var(--secondary, #e9c16c); }

.dl-modal-sponsor {
    margin: 18px 0 !important;
    font-size: 1rem;
}
.dl-modal-sponsor a {
    display: inline-block;
    padding: 8px 22px;
    border-radius: 999px;
    background: linear-gradient(100deg, rgba(211, 182, 94, .18), rgba(233, 193, 108, .12));
    border: 1px solid rgba(211, 182, 94, .55);
    color: var(--secondary, #e9c16c) !important;
    text-decoration: none;
    font-weight: 700;
    letter-spacing: .02em;
    transition: .2s;
}
.dl-modal-sponsor a:hover {
    background: linear-gradient(100deg, rgba(211, 182, 94, .32), rgba(233, 193, 108, .22));
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(211, 182, 94, .3);
    color: #ffe086 !important;
}

.dl-modal-bless {
    color: rgba(228, 225, 233, .6);
    font-size: .86rem;
    font-style: italic;
    padding-top: 14px;
    border-top: 1px dashed rgba(211, 182, 94, .18);
    margin-top: 16px !important;
}

.dl-modal-actions {
    display: flex;
    gap: 14px;
    margin-top: 22px;
}
.dl-modal-btn {
    flex: 1;
    padding: 13px 18px;
    border-radius: 10px;
    font-size: .96rem;
    font-weight: 700;
    letter-spacing: .03em;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: .2s;
    font-family: "Lexend", sans-serif;
    white-space: nowrap;
}
.dl-modal-btn.primary {
    background: linear-gradient(100deg, #d3b65e, #e9c16c);
    color: #3c2f00;
    box-shadow: 0 6px 22px rgba(211, 182, 94, .35);
}
.dl-modal-btn.primary:hover {
    background: linear-gradient(100deg, #e9c16c, #ffe086);
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(211, 182, 94, .5);
}
.dl-modal-btn.sponsor {
    background: transparent;
    border: 1.5px solid rgba(211, 182, 94, .55);
    color: var(--primary, #d3b65e);
}
.dl-modal-btn.sponsor:hover {
    background: rgba(211, 182, 94, .12);
    border-color: var(--secondary, #e9c16c);
    color: var(--secondary, #e9c16c);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(211, 182, 94, .2);
}

@media (max-width: 480px) {
    .dl-modal { padding: 24px 20px 20px; border-radius: 14px; }
    .dl-modal-icon { font-size: 1.8rem; }
    .dl-modal-head strong { font-size: 1.08rem; }
    .dl-modal-actions { flex-direction: column; }
    .dl-modal-btn { padding: 12px 16px; }
}