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

html {
    background: #b8d4cc;
    min-height: 100%;
}

body { line-height: 1.6; min-height: 100vh; background: transparent; }
a { text-decoration: none; }
a:hover { text-decoration: none; }
img { max-width: 100%; height: auto; }

/* ── 半透明毛玻璃（透出背景山水） ── */
.landing-body {
    --wx-ink: rgba(255, 255, 255, 0.94);
    --wx-ink-muted: rgba(255, 255, 255, 0.72);
    --wx-ink-soft: rgba(255, 255, 255, 0.55);
    --wx-glass: rgba(10, 16, 14, 0.42);
    --wx-glass-mid: rgba(10, 16, 14, 0.28);
    --wx-glass-light: rgba(255, 255, 255, 0.12);
    --wx-glass-hover: rgba(255, 255, 255, 0.18);
    --wx-highlight: #e8954a;
    --wx-highlight-glow: rgba(232, 149, 74, 0.55);
    --wx-border: rgba(255, 255, 255, 0.32);
    --wx-border-soft: rgba(255, 255, 255, 0.16);
    --wx-blur: blur(14px);
    --wx-font-title: "Ma Shan Zheng", "KaiTi", "STKaiti", "FangSong", serif;
    --wx-font-body: "Noto Serif SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    --wx-max: 1440px;

    font-family: var(--wx-font-body);
    background: transparent;
    overflow-x: hidden;
    min-height: 100vh;
    color: var(--wx-ink);
}

/* 整页背景：官网式分层（场景 + 人物 PNG 叠加） */
.page-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background: #8aa89c;
    overflow: hidden;
}
.page-bg-stack {
    position: absolute;
    inset: 0;
}
.page-bg-stack--scene { z-index: 0; }
.page-bg-stack--role { z-index: 1; }

.page-bg-layer {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.85s ease;
}
.page-bg-stack--scene .page-bg-layer {
    object-fit: cover;
    object-position: center top;
}
.page-bg-role {
    object-fit: contain;
    object-position: 58% 92%;
    filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.35));
}
.page-bg-layer.is-active {
    opacity: 1;
}

.page-bg-vignette {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse 100% 70% at 50% 35%, transparent 35%, rgba(60, 90, 80, 0.18) 100%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.12) 0%, transparent 28%, rgba(40, 60, 55, 0.08) 100%);
}

/* 顶栏公告 */
.site-notice {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 200;
    background: var(--wx-glass-mid);
    border-bottom: 1px solid var(--wx-border-soft);
    overflow: hidden;
    height: 32px;
    display: flex;
    align-items: center;
    backdrop-filter: var(--wx-blur);
    -webkit-backdrop-filter: var(--wx-blur);
}
.site-notice-track {
    display: flex;
    white-space: nowrap;
    animation: notice-scroll 35s linear infinite;
}
.site-notice-item {
    padding: 0 48px;
    color: var(--wx-ink);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
}
@keyframes notice-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* 浮动控件 */
.float-tools {
    position: fixed;
    top: 44px;
    right: 16px;
    z-index: 150;
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: flex-end;
}
.play-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--wx-glass);
    border: 1px solid var(--wx-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
    backdrop-filter: var(--wx-blur);
    -webkit-backdrop-filter: var(--wx-blur);
    transition: transform 0.2s, background 0.2s;
}
.play-btn:hover { transform: scale(1.06); background: var(--wx-glass-hover); }
.play-btn::after {
    content: "";
    border: 7px solid transparent;
    border-left: 12px solid #fff;
    margin-left: 3px;
}
.play-btn.is-playing::after {
    width: 11px;
    height: 13px;
    border: none;
    margin: 0;
    background: linear-gradient(to right, #fff 0 35%, transparent 35% 65%, #fff 65% 100%);
}
.online-badge {
    padding: 5px 12px;
    border-radius: 20px;
    background: var(--wx-glass-mid);
    border: 1px solid var(--wx-border-soft);
    font-size: 11px;
    color: var(--wx-ink-muted);
    backdrop-filter: var(--wx-blur);
    -webkit-backdrop-filter: var(--wx-blur);
}
.online-badge strong { color: var(--wx-ink); }

.admin-fab {
    position: fixed;
    bottom: 16px;
    left: 16px;
    z-index: 150;
    padding: 6px 12px;
    background: var(--wx-glass-mid);
    border: 1px solid var(--wx-border-soft);
    font-size: 11px;
    border-radius: 4px;
    backdrop-filter: var(--wx-blur);
    -webkit-backdrop-filter: var(--wx-blur);
}
.admin-fab a { color: var(--wx-ink); text-decoration: none; }

/* 背景视频 */
.video-bg {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    filter: brightness(0.45) sepia(0.2);
    opacity: 0;
    transition: opacity 0.5s;
}
.video-bg.is-playing { opacity: 1; }

/* ── 主内容 ── */
.page {
    position: relative;
    z-index: 2;
    max-width: var(--wx-max);
    margin: 0 auto;
    padding: 48px 20px 32px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.has-notice .page { padding-top: 56px; }

/* ── 紧凑横排 Hero ── */
.hero--wuxia {
    flex-shrink: 0;
    padding: 14px 18px 10px;
    background: var(--wx-glass-mid);
    backdrop-filter: var(--wx-blur);
    -webkit-backdrop-filter: var(--wx-blur);
    border: 1px solid var(--wx-border-soft);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
    margin-bottom: 16px;
    position: relative;
    border-radius: 6px;
}
.hero--wuxia::before,
.hero--wuxia::after {
    content: "◇";
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: var(--wx-ink-soft);
    opacity: 0.6;
    font-size: 10px;
}
.hero--wuxia::before { left: 8px; }
.hero--wuxia::after { right: 8px; }

.hero-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    min-width: 180px;
}
.hero-seal {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    font-family: var(--wx-font-title);
    font-size: 22px;
    color: var(--wx-ink);
    background: var(--wx-glass-light);
    border: 1px solid var(--wx-border);
    border-radius: 50%;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    flex-shrink: 0;
}
.hero-brand-text h1 {
    font-family: var(--wx-font-title);
    font-size: clamp(1.15rem, 2.4vw, 1.55rem);
    color: var(--wx-ink);
    font-weight: 400;
    letter-spacing: 4px;
    line-height: 1.2;
    margin: 0;
}
.hero-sub {
    color: var(--wx-ink-muted);
    font-size: 11px;
    line-height: 1.4;
    margin-top: 2px;
    max-width: 280px;
}
.hero-tagline {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--wx-border-soft);
    font-size: 11px;
    color: var(--wx-ink-soft);
    text-align: center;
    letter-spacing: 1px;
}

/* 功能横条 */
.feature-strip {
    display: flex;
    flex: 1;
    gap: 6px;
    list-style: none;
    flex-wrap: wrap;
    justify-content: center;
    min-width: 0;
}
.feature-chip {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 5px 10px;
    background: var(--wx-glass-light);
    border: 1px solid var(--wx-border-soft);
    border-radius: 20px;
    cursor: default;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: border-color 0.2s, background 0.2s;
    white-space: nowrap;
}
.feature-chip:hover {
    border-color: var(--wx-border);
    background: var(--wx-glass-hover);
}
.feature-chip-icon {
    font-size: 11px;
    color: var(--wx-ink-muted);
}
.feature-chip-title {
    font-size: 11px;
    color: var(--wx-ink);
    letter-spacing: 0.5px;
}

/* CTA 按钮 */
.hero-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
    flex-wrap: wrap;
}
.hero-actions .btn-cta {
    padding: 7px 16px;
    font-family: var(--wx-font-body);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    text-decoration: none;
    border-radius: 2px;
    transition: filter 0.15s, transform 0.15s;
    white-space: nowrap;
}
.hero-actions .btn-cta-primary {
    background: var(--wx-glass-hover);
    color: var(--wx-ink);
    border: 1px solid var(--wx-border);
    box-shadow: none;
    border-radius: 20px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.hero-actions .btn-cta-outline {
    background: var(--wx-glass-light);
    color: var(--wx-ink-muted);
    border: 1px solid var(--wx-border-soft);
    border-radius: 20px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.hero-actions .btn-cta:hover {
    background: rgba(255, 255, 255, 0.22);
    transform: translateY(-1px);
    text-decoration: none;
}

@media (max-width: 900px) {
    .hero-row { flex-direction: column; align-items: stretch; }
    .hero-brand { justify-content: center; }
    .hero-brand-text { text-align: center; }
    .hero-sub { max-width: none; }
    .feature-strip { justify-content: center; }
    .hero-actions { justify-content: center; }
}

/* ── 版本广告位（四列卡片） ── */
.versions--wuxia {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

/* ≤2 排广告时整体下移，露出背景人物 */
.versions--lower {
    margin-top: min(24vh, 220px);
}

@media (max-width: 1100px) {
    .versions--lower {
        margin-top: min(16vh, 140px);
    }
}

@media (max-width: 600px) {
    .versions--lower {
        margin-top: 32px;
    }
}

.versions-head {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 14px;
    flex-shrink: 0;
}
.versions-head h2 {
    font-family: var(--wx-font-title);
    font-size: clamp(1.2rem, 2.4vw, 1.55rem);
    color: var(--wx-ink);
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
    font-weight: 400;
    letter-spacing: 8px;
    white-space: nowrap;
}
.versions-ornament {
    color: var(--wx-ink-muted);
    opacity: 0.85;
    font-size: 12px;
    letter-spacing: -2px;
}

.version-grid {
    display: grid;
    gap: 14px;
    flex: 1;
    align-content: start;
}
.version-grid.cols-1 { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; width: 100%; }
.version-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.version-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.version-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1100px) {
    .version-grid.cols-3, .version-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .version-grid.cols-2, .version-grid.cols-3, .version-grid.cols-4 { grid-template-columns: 1fr; }
}

.version-card.is-hidden {
    display: none !important;
}
.version-grid.is-filtered {
    justify-content: center;
}

.version-card {
    display: flex;
    flex-direction: column;
    min-height: 400px;
    background: var(--wx-glass-mid);
    border: 1px solid var(--wx-border-soft);
    border-radius: 6px;
    padding: 16px;
    position: relative;
    box-shadow: 0 6px 28px rgba(0, 0, 0, 0.18);
    backdrop-filter: var(--wx-blur);
    -webkit-backdrop-filter: var(--wx-blur);
}
.version-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 12px;
    right: 12px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--wx-border), transparent);
    opacity: 0.8;
}
.version-tag {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 10px;
    padding: 2px 8px;
    background: var(--wx-glass-light);
    border: 1px solid var(--wx-border-soft);
    color: var(--wx-ink-muted);
    letter-spacing: 1px;
    border-radius: 12px;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}
.version-title {
    font-family: var(--wx-font-title);
    font-size: clamp(0.95rem, 1.6vw, 1.15rem);
    font-weight: 400;
    color: var(--wx-ink);
    margin-bottom: 8px;
    padding-right: 56px;
    line-height: 1.35;
    letter-spacing: 2px;
}
.version-qq {
    font-size: 12px;
    color: var(--wx-highlight);
    font-weight: 600;
    margin-bottom: 10px;
    display: block;
}
a.version-qq:hover { color: var(--wx-ink); text-decoration: none; }
.version-desc {
    flex: 1;
    font-size: 12px;
    color: var(--wx-ink-muted);
    line-height: 1.65;
    min-height: 160px;
    max-height: min(280px, 36vh);
    overflow-y: auto;
    margin-bottom: 12px;
    padding: 12px 10px;
    background: var(--wx-glass-light);
    border: 1px solid var(--wx-border-soft);
    border-radius: 4px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.version-desc::-webkit-scrollbar { width: 4px; }
.version-desc::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.25); }
.version-actions {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: auto;
    padding-top: 10px;
    border-top: 1px solid var(--wx-border-soft);
}
.version-actions-row { display: flex; gap: 6px; }
.version-btn {
    flex: 1;
    display: block;
    padding: 9px 6px;
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    border-radius: 20px;
    background: var(--wx-glass-hover);
    color: var(--wx-ink);
    text-decoration: none;
    border: 1px solid var(--wx-border);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: none;
}
.version-btn:hover { background: rgba(255, 255, 255, 0.24); text-decoration: none; }
.version-btn--ghost {
    background: var(--wx-glass-light);
    border-color: var(--wx-border-soft);
    color: var(--wx-ink-muted);
}

/* 右侧背景轮换（仅切换整页背景图） */
.bg-rail {
    position: fixed;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 120;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8px 4px;
}
.bg-rail-orbit {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 200px;
    height: 520px;
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 50%;
    clip-path: inset(0 0 0 52%);
    pointer-events: none;
    opacity: 0.65;
}
.bg-rail-btn {
    --rail-i: 0;
    --rail-n: 7;
    position: relative;
    width: 46px;
    height: 46px;
    margin: 4px 0;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    transform: translateX(calc(-14px + (var(--rail-i) - (var(--rail-n) - 1) / 2) * (var(--rail-i) - (var(--rail-n) - 1) / 2) * -4px));
    transition: transform 0.25s ease;
}
.bg-rail-btn.is-active {
    transform: translateX(calc(-22px + (var(--rail-i) - (var(--rail-n) - 1) / 2) * (var(--rail-i) - (var(--rail-n) - 1) / 2) * -6px)) scale(1.12);
    z-index: 2;
}
.bg-rail-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 1px solid var(--wx-border);
    background: var(--wx-glass-mid);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
}
.bg-rail-btn.is-active .bg-rail-ring {
    border-color: var(--wx-highlight);
    border-width: 2px;
    box-shadow: 0 0 16px var(--wx-highlight-glow);
    background: var(--wx-glass-hover);
}
.bg-rail-icon {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font-family: var(--wx-font-title);
    font-size: 13px;
    color: var(--wx-ink);
    text-shadow: 0 1px 6px rgba(0, 0, 0, 0.35);
    letter-spacing: 0;
}
.bg-rail-btn.is-active .bg-rail-icon {
    color: var(--wx-ink);
    font-weight: 600;
}
.bg-rail-tip {
    position: absolute;
    right: calc(100% + 8px);
    top: 50%;
    transform: translateY(-50%);
    padding: 4px 10px;
    font-size: 11px;
    white-space: nowrap;
    color: var(--wx-ink);
    background: var(--wx-glass-mid);
    border: 1px solid var(--wx-border-soft);
    border-radius: 12px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    backdrop-filter: var(--wx-blur);
    -webkit-backdrop-filter: var(--wx-blur);
}
.bg-rail-btn.is-active .bg-rail-tip { opacity: 1; }

@media (max-width: 960px) {
    .bg-rail {
        position: static;
        transform: none;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
        margin-top: 12px;
        padding: 0;
    }
    .bg-rail-orbit { display: none; }
    .bg-rail-btn { transform: none !important; margin: 0; }
    .bg-rail-tip { display: none; }
}

.page-footer {
    text-align: center;
    padding: 16px;
    font-size: 11px;
    color: var(--wx-ink-soft);
    letter-spacing: 3px;
    flex-shrink: 0;
    margin-top: 12px;
    border-top: 1px solid var(--wx-border-soft);
}