/* ===== 幻盒子服务器 · 主题样式 ===== */
:root {
    --bg-0: #0d1117;
    --bg-1: #161b22;
    --bg-2: #1f2630;
    --border: #30363d;
    --text: #e6edf3;
    --text-dim: #8b949e;
    --accent: #4ade80;       /* 草绿 */
    --accent-2: #22c55e;
    --gold: #fbbf24;
    --blue: #60a5fa;
    --purple: #a78bfa;
    --danger: #f87171;
    --card-bg: rgba(22, 27, 34, 0.75);
    --glow: 0 0 24px rgba(74, 222, 128, 0.25);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Microsoft YaHei", sans-serif;
    background: var(--bg-0);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* 背景纹理 + 渐变 */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 0%, rgba(74, 222, 128, 0.08), transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(96, 165, 250, 0.08), transparent 50%),
        radial-gradient(ellipse at 50% 100%, rgba(167, 139, 250, 0.06), transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* 粒子 */
.particles {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}
.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0.4;
    animation: floatUp linear infinite;
}
@keyframes floatUp {
    0%   { transform: translateY(100vh) scale(0); opacity: 0; }
    10%  { opacity: 0.6; }
    90%  { opacity: 0.4; }
    100% { transform: translateY(-10vh) scale(1.2); opacity: 0; }
}

/* 导航 */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: rgba(13, 17, 23, 0.7);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; }
.logo-icon {
    font-size: 26px;
    filter: drop-shadow(0 0 6px var(--accent));
}
.logo-text {
    background: linear-gradient(135deg, var(--accent), var(--blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.nav-links { list-style: none; display: flex; gap: 28px; }
.nav-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent); }

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 80px 24px 60px;
    z-index: 1;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40'%3E%3Crect width='40' height='40' fill='%23161b22'/%3E%3Cpath d='M0 20h40M20 0v40' stroke='%2330363d' stroke-width='0.5'/%3E%3C/svg%3E");
    opacity: 0.4;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.hero-content { position: relative; z-index: 2; }
.hero-title {
    font-size: clamp(48px, 10vw, 120px);
    font-weight: 900;
    line-height: 1;
    letter-spacing: -2px;
}
.title-line1 {
    display: block;
    background: linear-gradient(135deg, var(--accent) 0%, var(--blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 60px rgba(74, 222, 128, 0.3);
}
.title-line2 {
    display: block;
    color: var(--text);
    font-size: 0.5em;
    letter-spacing: 8px;
    margin-top: 8px;
    opacity: 0.85;
}
.hero-subtitle {
    margin-top: 24px;
    font-size: clamp(16px, 2.5vw, 22px);
    color: var(--text-dim);
    letter-spacing: 4px;
}
.server-ip-card {
    margin: 40px auto 0;
    display: inline-flex;
    align-items: center;
    gap: 16px;
    padding: 14px 24px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    backdrop-filter: blur(10px);
    box-shadow: var(--glow);
}
.ip-label { font-size: 13px; color: var(--text-dim); }
.ip-value {
    font-family: "SF Mono", Consolas, monospace;
    font-size: 18px;
    color: var(--accent);
    font-weight: 600;
}
.copy-btn {
    background: var(--accent);
    color: #0d1117;
    border: none;
    padding: 6px 14px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: transform 0.15s, background 0.2s;
}
.copy-btn:hover { background: var(--accent-2); transform: translateY(-1px); }

.hero-btns {
    margin-top: 36px;
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #0d1117;
    box-shadow: 0 4px 20px rgba(74, 222, 128, 0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 28px rgba(74, 222, 128, 0.45); }
.btn-ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 6px 16px; font-size: 13px; }

/* Section */
.section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 24px;
    position: relative;
    z-index: 1;
}
.section-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    text-align: center;
    margin-bottom: 48px;
    position: relative;
}
.section-title::after {
    content: "";
    display: block;
    width: 60px;
    height: 4px;
    margin: 16px auto 0;
    background: linear-gradient(90deg, var(--accent), var(--blue));
    border-radius: 2px;
}

/* 状态卡片 */
.status-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    margin-bottom: 24px;
}
.status-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    backdrop-filter: blur(10px);
}
.main-status { display: flex; align-items: center; gap: 20px; }
.status-icon-wrap { position: relative; flex-shrink: 0; }
.server-icon {
    width: 72px; height: 72px;
    border-radius: 8px;
    image-rendering: pixelated;
    border: 2px solid var(--border);
    background: var(--bg-2);
}
.status-dot {
    position: absolute;
    bottom: -2px; right: -2px;
    width: 14px; height: 14px;
    border-radius: 50%;
    background: var(--danger);
    border: 2px solid var(--bg-0);
    box-shadow: 0 0 8px var(--danger);
}
.status-dot.online { background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.status-name { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.status-motd {
    color: var(--accent);
    font-size: 14px;
    margin-bottom: 10px;
    word-break: break-word;
}
.status-meta { display: flex; gap: 8px; flex-wrap: wrap; }
.badge {
    font-size: 12px;
    padding: 3px 10px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-dim);
}

.player-card { display: flex; flex-direction: column; justify-content: center; align-items: center; }
.player-count { font-size: 48px; font-weight: 900; line-height: 1; }
.count-num { color: var(--accent); }
.count-sep { color: var(--text-dim); margin: 0 4px; }
.count-max { color: var(--text-dim); font-size: 28px; }
.player-label { color: var(--text-dim); font-size: 14px; margin-top: 8px; }

/* 历史图表 */
.history-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    backdrop-filter: blur(10px);
}
.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.history-header h3 { font-size: 18px; }
.history-sub { font-size: 13px; color: var(--text-dim); }
.chart-wrap { position: relative; height: 260px; }

/* 介绍卡片 */
.intro-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}
.intro-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    transition: transform 0.2s, border-color 0.2s;
}
.intro-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}
.intro-icon { font-size: 36px; margin-bottom: 14px; }
.intro-card h3 { font-size: 20px; margin-bottom: 10px; color: var(--accent); }
.intro-card p { color: var(--text-dim); font-size: 14px; }
.intro-card strong { color: var(--text); }
.intro-card.featured {
    background: linear-gradient(135deg, rgba(74, 222, 128, 0.08), rgba(96, 165, 250, 0.08));
    border-color: rgba(74, 222, 128, 0.3);
}

/* 下载 */
.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}
.download-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    text-align: center;
}
.dl-icon { font-size: 48px; margin-bottom: 16px; }
.download-card h3 { font-size: 20px; margin-bottom: 10px; }
.download-card p { color: var(--text-dim); font-size: 14px; margin-bottom: 20px; }
.download-card code {
    background: var(--bg-2);
    padding: 2px 8px;
    border-radius: 4px;
    color: var(--gold);
    font-size: 14px;
}
.dl-password { margin-top: 14px; font-size: 14px; color: var(--text-dim); }

/* 文件列表 */
.file-list {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    max-width: 800px;
    margin: 0 auto;
}
.file-table { width: 100%; border-collapse: collapse; }
.file-table th, .file-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.file-table th { color: var(--text-dim); font-size: 13px; font-weight: 600; }
.file-name { font-family: monospace; color: var(--accent); }
.file-size { color: var(--text-dim); }
.empty-tip { text-align: center; padding: 40px 20px; color: var(--text-dim); }
.empty-tip code { background: var(--bg-2); padding: 2px 8px; border-radius: 4px; color: var(--gold); }
.empty-tip .hint { font-size: 13px; margin-top: 8px; }

/* 联系 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    max-width: 700px;
    margin: 0 auto;
}
.contact-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    text-align: center;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    transition: transform 0.2s, border-color 0.2s;
}
.contact-card:hover { transform: translateY(-4px); border-color: var(--accent); }
.contact-icon { font-size: 40px; margin-bottom: 12px; }
.contact-label { font-size: 13px; color: var(--text-dim); margin-bottom: 6px; }
.contact-value { font-size: 18px; font-weight: 600; color: var(--accent); font-family: monospace; }
.contact-hint { font-size: 12px; color: var(--text-dim); margin-top: 8px; }
.contact-tip { text-align: center; color: var(--text-dim); margin-top: 24px; }

/* 留言板 */
.guestbook { max-width: 800px; margin: 0 auto; }
.msg-form {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
}
.form-row { margin-bottom: 12px; }
.msg-form input, .msg-form textarea {
    width: 100%;
    background: var(--bg-2);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    transition: border-color 0.2s;
}
.msg-form input:focus, .msg-form textarea:focus {
    outline: none;
    border-color: var(--accent);
}
.msg-form textarea { margin-bottom: 12px; }

.msg-list { display: flex; flex-direction: column; gap: 12px; }
.msg-item {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px 20px;
}
.msg-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.msg-name { font-weight: 700; color: var(--accent); }
.msg-time { font-size: 12px; color: var(--text-dim); }
.msg-content { color: var(--text); font-size: 14px; word-break: break-word; }
.msg-loading, .msg-empty { text-align: center; color: var(--text-dim); padding: 20px; }

/* 页脚 */
.footer {
    text-align: center;
    padding: 40px 24px;
    color: var(--text-dim);
    font-size: 14px;
    border-top: 1px solid var(--border);
    position: relative;
    z-index: 1;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #0d1117;
    padding: 12px 24px;
    border-radius: 10px;
    font-weight: 600;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
    pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(-6px); }
.toast.error { background: var(--danger); color: #fff; }

/* ===== 备用服务器 ===== */
.backup-section {
    margin-top: 24px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    backdrop-filter: blur(10px);
}
.backup-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 16px;
    margin-top: 8px;
}
.backup-card {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px;
    transition: border-color 0.2s, transform 0.2s;
}
.backup-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.backup-card-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}
.backup-icon {
    width: 40px; height: 40px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg-0);
    image-rendering: pixelated;
    flex-shrink: 0;
}
.backup-name { font-weight: 700; font-size: 16px; }
.backup-status-wrap { position: relative; flex-shrink: 0; }
.backup-dot {
    display: inline-block;
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--danger);
    box-shadow: 0 0 6px var(--danger);
}
.backup-dot.online { background: var(--accent); box-shadow: 0 0 6px var(--accent); }
.backup-address {
    font-family: monospace;
    font-size: 13px;
    color: var(--accent);
    word-break: break-all;
    margin-bottom: 8px;
    cursor: pointer;
}
.backup-address:hover { text-decoration: underline; }
.backup-motd {
    font-size: 13px;
    color: var(--text-dim);
    min-height: 20px;
    margin-bottom: 10px;
    word-break: break-word;
}
.backup-meta { display: flex; gap: 8px; flex-wrap: wrap; }
.backup-meta .badge { font-size: 12px; }

/* 响应式 */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .status-grid { grid-template-columns: 1fr; }
    .main-status { flex-direction: column; text-align: center; }
    .player-count { font-size: 40px; }
    .hero-btns { flex-direction: column; align-items: center; }
    .btn { width: 100%; max-width: 280px; text-align: center; }
}