/* ===== 二级页面通用样式 ===== */
.page-header {
    margin-top: 26px;
    text-align: center;
    padding: 20px 24px;
}

.page-header h1 {
    margin: 0;
    font-size: clamp(28px, 3.2vw, 40px);
}

.page-header .breadcrumb {
    margin-top: 8px;
    color: var(--text-sub);
    font-size: 14px;
}

.page-header .breadcrumb a {
    color: var(--primary);
}

/* 标题行 + 返回按钮并排 */
.page-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-top: 12px;
}

.page-header-row h1 {
    margin: 0;
}

.btn-back-home {
    flex-shrink: 0;
    padding: 8px 18px;
    border-radius: 999px;
    border: 1px solid var(--line);
    color: var(--text-sub);
    font-size: 14px;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.btn-back-home:hover {
    background: var(--input-focus);
    color: var(--primary);
    border-color: var(--primary);
}

/* 列表容器 */
.list-page main {
    padding-top: 0;
}

.list-page .section-header {
    margin-bottom: 0;
}

/* 分类筛选按钮栏 */
.filter-bar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line);
}

.filter-btn {
    padding: 5px 14px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: transparent;
    color: var(--text-sub);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-btn.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

/* ===== 标签筛选栏 ===== */
.tag-bar {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
}

.tag-btn {
    padding: 3px 12px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: transparent;
    color: var(--text-sub);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.tag-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.tag-btn.active {
    background: var(--bg-accent);
    color: var(--primary);
    border-color: var(--primary);
}

/* ===== 排序控制 ===== */
.sort-bar {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 16px;
}

.sort-label {
    font-size: 13px;
    color: var(--text-sub);
}

.sort-btn {
    padding: 4px 14px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: transparent;
    color: var(--text-sub);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.sort-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.sort-btn.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

/* 列表卡片点击整块跳转 */
.content-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.content-card-link:hover {
    transform: translateY(-2px);
}

.content-card-link .content-card {
    transition: box-shadow 0.2s ease;
}

.content-card-link:hover .content-card {
    box-shadow: 0 8px 24px rgba(74, 62, 42, 0.12);
}

/* ===== 详情页 ===== */
.detail-page main {
    padding-top: 26px;   /* 文稿板与导航栏的呼吸距离（此前板沿直接贴住导航） */
}

.detail-article {
    position: relative;
    z-index: 2;    /* 压住下方的展开书签条(z1)与上下篇书页卡片(z0)，书签行(z3)仍在其上 */
    margin-top: 46px;   /* 与导航栏留出呼吸距离（书签行负边距随此值校准） */
    border: 1px solid var(--line-card);
    border-radius: 22px;
    /* 文稿板：纸面微渐变 + 四角螺钉（与归档页档案板同源的细节） */
    background-image:
        radial-gradient(circle at 30px 30px, var(--arch-screw) 0 3.5px, transparent 4.5px),
        radial-gradient(circle at calc(100% - 30px) 30px, var(--arch-screw) 0 3.5px, transparent 4.5px),
        radial-gradient(circle at 30px calc(100% - 30px), var(--arch-screw) 0 3.5px, transparent 4.5px),
        radial-gradient(circle at calc(100% - 30px) calc(100% - 30px), var(--arch-screw) 0 3.5px, transparent 4.5px),
        linear-gradient(180deg, var(--bg-card-alt), var(--bg-card));
    box-shadow: 0 10px 28px rgba(74, 62, 42, 0.08);
    padding: 38px 38px 0;   /* 底部留白交给 .detail-body（卷轴裁切时板边与滚轴对齐的关键） */
    scroll-margin-top: calc(var(--nav-height) + 14px);
}

/* 内衬细框线：呼应归档页文档正面的内衬边框 */
.detail-article::before {
    content: '';
    position: absolute;
    inset: 14px;
    border: 1px solid var(--arch-frame);
    border-radius: 14px;
    pointer-events: none;
}

.detail-article header {
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line-card);
}

/* 眉批短线：卷宗标题下的琥珀批注条 */
.detail-article header::after {
    content: '';
    display: block;
    width: 72px;
    height: 3px;
    margin-top: 14px;
    border-radius: 2px;
    background: var(--primary);
    opacity: 0.55;
}

.detail-article h1 {
    margin: 0 0 10px;
    font-size: clamp(26px, 3vw, 36px);
    line-height: 1.3;
}

.detail-meta {
    color: var(--text-sub);
    font-size: 13px;
    letter-spacing: 0.03em;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.detail-meta .tag {
    display: inline-block;
    background: var(--arch-amber-soft);
    color: var(--primary);
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 12px;
}

/* Markdown 风格的详情内容 */
.detail-body {
    line-height: 1.8;
    color: var(--text-main);
    position: relative;
    overflow: hidden;
    padding-bottom: 38px;   /* 承接原文稿板底部留白：滚轴（bottom:0）永远正好在板边上 */
    /* 卷轴动效走 FLIP：JS 内联 clip-path/transform 过渡，CSS 不再挂过渡 */
}

/* 折叠渐隐遮罩（卷轴揭开处的纸面雾化；卷轴杆已移除） */
.fold-mask {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    /* 窄雾化带：只在滚轴上方一小段柔化（过高会让文字提前消失、与板边收起不同步） */
    height: 34px;
    background: linear-gradient(to bottom, transparent, var(--bg-card) 85%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    z-index: 1;
}

.detail-body.folded .fold-mask {
    opacity: 1;
}

.detail-body h2 {
    margin: 32px 0 14px;
    font-size: clamp(20px, 2vw, 26px);
    padding-bottom: 8px;
    border-bottom: 1px solid var(--line-card);
}

.detail-body h3 {
    margin: 24px 0 10px;
    font-size: 18px;
}

.detail-body p {
    margin: 0 0 16px;
}

.detail-body ul,
.detail-body ol {
    margin: 0 0 16px;
    padding-left: 22px;
}

.detail-body li {
    margin-bottom: 6px;
}

.detail-body code {
    background: #f1ead9;
    padding: 2px 7px;
    border-radius: 5px;
    font-size: 14px;
    font-family: "Consolas", "Courier New", monospace;
}

.detail-body pre {
    background: #2b241a;
    color: #eae2cf;
    padding: 18px 20px;
    border-radius: 12px;
    overflow-x: auto;
    margin: 0 0 20px;
    font-size: 14px;
    line-height: 1.6;
}

.detail-body pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.detail-body blockquote {
    margin: 0 0 16px;
    padding: 12px 18px;
    border-left: 4px solid var(--primary);
    background: #f6efdd;
    border-radius: 0 8px 8px 0;
    color: var(--text-sub);
}

/* Markdown 表格 */
.detail-body .table-wrap {
    overflow-x: auto;
    margin: 0 0 20px;
}
.detail-body table {
    border-collapse: collapse;
    width: 100%;
    font-size: 14px;
}
.detail-body th,
.detail-body td {
    border: 1px solid var(--line);
    padding: 8px 14px;
    text-align: left;
}
.detail-body th {
    background: var(--bg-accent);
    font-weight: 600;
}
.detail-body tr:nth-child(even) {
    background: var(--bg-accent);
}

/* 标题锚点滚动偏移 */
.detail-body h2,
.detail-body h3 {
    scroll-margin-top: calc(var(--nav-height) + 14px);
}

/* 书签行：双书签并排挂在文稿板右上，顶边与板沿齐平（整条夹在板上，不露外侧）
   -122px = 书签高 96 + 文章板 margin-top 26（margin 折叠后板顶恰好与书签顶齐平） */
.bookmark-row {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    /* 负边距 = 书签高 96 + 文稿板 margin-top 46，margin 折叠后书签顶边与板沿齐平 */
    margin: 0 44px -142px auto;
    position: relative;
    z-index: 3;   /* 高于文稿板(z2)，书签整条夹在板上 */
}

.detail-back {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 5px;
    box-sizing: border-box;
    width: 46px;
    height: 96px;
    padding: 10px 0 24px;
    position: relative;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 50% calc(100% - 12px), 0 100%);
    background: linear-gradient(180deg, #f0e5c4, #e6d3a0 78%, #d9c288);
    color: #7c5a12;
    text-decoration: none;
    filter: drop-shadow(0 2px 3px rgba(74, 62, 42, 0.20));
    transition: height 0.3s ease, filter 0.3s ease, color 0.3s ease;
}

.detail-back::before,
.detail-back::after {
    /* 两侧竖虚线缝线（原中缝单线干扰竖排文字，移到文字两侧） */
    content: '';
    position: absolute;
    top: 8px;
    bottom: 18px;
    width: 0;
    border-left: 1px dashed rgba(124, 90, 18, 0.28);
    pointer-events: none;
}

.detail-back::before { left: 7px; }
.detail-back::after { right: 7px; }

.detail-back .bk-arrow {
    font-size: 12px;
    line-height: 1;
    opacity: 0.7;
    transition: transform 0.3s ease;
}

.detail-back .bk-text {
    writing-mode: vertical-rl;
    font-family: var(--font-serif);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.3em;
}

/* hover：书签被往下抽长一截——顶端钉在板沿不动（不漏底），只有下端 V 口下移 */
.detail-back:not(.is-disabled):hover {
    height: 104px;
    color: #5d430c;
    filter: drop-shadow(0 5px 8px rgba(74, 62, 42, 0.26));
}

.detail-back:hover .bk-arrow {
    transform: translateX(-2px);
}

[data-theme="dark"] .detail-back {
    background: linear-gradient(180deg, rgba(212, 169, 74, 0.18), rgba(212, 169, 74, 0.30) 78%, rgba(212, 169, 74, 0.42));
    color: #d4a94a;
}

[data-theme="dark"] .detail-back::before,
[data-theme="dark"] .detail-back::after {
    border-left-color: rgba(212, 169, 74, 0.30);
}

[data-theme="dark"] .detail-back:hover {
    color: #e8c98a;
}

/* 回览书签：与「返回」做轻微色差——浅茶灰 vs 麦金，扫一眼能区分但仍是同族纸签 */
.detail-back.bk-history {
    background: linear-gradient(180deg, #eae5d3, #d9cda9 78%, #c7b88f);
    color: #6b5c36;
}

[data-theme="dark"] .detail-back.bk-history {
    background: linear-gradient(180deg, rgba(206, 188, 138, 0.14), rgba(206, 188, 138, 0.26) 78%, rgba(206, 188, 138, 0.38));
    color: #c9b98c;
}

/* 回览书签：无「上一篇阅读」记录时置灰禁用 */
.detail-back.is-disabled {
    opacity: 0.38;
    filter: grayscale(0.7) drop-shadow(0 1px 2px rgba(74, 62, 42, 0.12));
    cursor: default;
}

.detail-back.is-disabled:hover {
    transform: none;
    color: #7c5a12;
    filter: grayscale(0.7) drop-shadow(0 1px 2px rgba(74, 62, 42, 0.12));
}

.detail-back.is-disabled:hover .bk-arrow {
    transform: none;
}

[data-theme="dark"] .detail-back.is-disabled {
    color: #8a7a58;
}

[data-theme="dark"] .detail-back.is-disabled:hover {
    color: #8a7a58;
}

/* 阅读量 */
.read-count {
    color: var(--text-meta);
    font-size: 13px;
}

/* 标签列表 */
.detail-tags {
    margin-top: 12px;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.detail-tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    background: var(--arch-amber-soft);
    color: var(--primary);
    font-size: 12px;
    border: 1px solid transparent;
}

/* 正文折叠 */

/* 展开全文：不再做悬浮胶囊，改为与上下篇同一套「压板」语言——
   一张居中的短纸片从文稿板下方探出（顶部 34px 藏在板后），层级位于板与书页卡片之间 */
.detail-fold {
    display: flex;
    justify-content: center;
    margin-top: -34px;   /* 纸片顶部 34px 藏进文稿板后面（板 z2 压住它） */
    position: relative;
    z-index: 1;    /* 位于上下篇卡片(z0)之上、文稿板(z2)之下 */
    pointer-events: none;   /* 包裹层是全宽的，不能拦截上下篇露出条的命中；只有纸片本身可点 */
}

.fold-btn {
    /* 320px：纸签只需容住文字；再宽会压掉上下篇露出条的中段命中区（板下 34px 窄条） */
    width: min(320px, 62%);
    height: 64px;
    box-sizing: border-box;
    padding: 36px 20px 0;   /* 文字落在露出的下半段（30px 可见区） */
    border-radius: 16px;
    border: 1px solid var(--line-card);
    background: linear-gradient(180deg, var(--bg-card), var(--bg-card-alt));
    color: var(--primary);
    font-size: 13px;
    line-height: 1;
    font-family: var(--font-serif);
    font-weight: 600;
    letter-spacing: 0.24em;
    cursor: pointer;
    box-shadow: 0 6px 14px rgba(74, 62, 42, 0.10);
    transform: translateY(0);
    pointer-events: auto;   /* 命中只发生在纸片上（父层已关） */
    transition: transform 0.3s cubic-bezier(0.3, 0.7, 0.3, 1), border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

/* hover：纸片从板下再抽出一点，边框染麦金 */
.fold-btn:hover {
    transform: translateY(10px);
    border-color: rgba(192, 138, 30, 0.55);
    color: #5d430c;
    box-shadow: 0 10px 22px rgba(74, 62, 42, 0.16);
}

[data-theme="dark"] .fold-btn {
    background: linear-gradient(180deg, #372d15, #2b230f);   /* 不透明：否则下层前后篇卡片会透出来 */
    border-color: rgba(212, 169, 74, 0.35);
    color: #d4a94a;
}

[data-theme="dark"] .fold-btn:hover {
    border-color: rgba(212, 169, 74, 0.7);
    color: #e8c98a;
}

/* 上下篇导航：书页覆盖——两张卡片压在文稿板下方，露出信息条，hover 抽出 */
.detail-prev-next {
    margin-top: -90px;   /* 卡片上段 90px 藏在文稿板后面 */
    display: flex;
    justify-content: space-between;
    gap: 14px;
    position: relative;
    z-index: 0;
    padding: 0 6px;
}

/* 有折叠书签条时补偿其占位（纸片高 64 - 藏 34 = 净占 30px），保证压住量仍是 90px */
.detail-prev-next.under-fold { margin-top: -120px; }

.pn-card {
    flex: 1;
    box-sizing: border-box;
    height: 124px;
    overflow: hidden;
    /* 顶部 40px 藏在文稿板后面；信息条钉在卡片底部，露出量稳定 */
    padding: 40px 22px 10px;
    border-radius: 16px;
    border: 1px solid var(--line-card);
    text-decoration: none;
    color: var(--text-main);
    background: var(--bg-card);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 6px;
    transform: translateY(0);
    transition: transform 0.35s cubic-bezier(0.3, 0.7, 0.3, 1), border-color 0.35s ease, box-shadow 0.35s ease;
}

.pn-title {
    font-family: var(--font-serif);
    font-size: 15px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.pn-meta {
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.pn-tag {
    font-size: 11px;
    letter-spacing: 0.14em;
    color: var(--primary);
    opacity: 0.9;
    white-space: nowrap;
    transition: transform 0.3s ease;
}

.pn-date {
    font-size: 12px;
    color: var(--text-meta);
    letter-spacing: 0.04em;
}

.pn-prev { align-items: flex-start; text-align: left; }
.pn-next { align-items: flex-end; text-align: right; }
.pn-next .pn-meta { flex-direction: row-reverse; }

/* 鼠标移入：卡片从板下抽出 56px，藏起的标题滑入视野 */
.pn-card:hover {
    transform: translateY(56px);
    border-color: rgba(192, 138, 30, 0.55);
    box-shadow: 0 10px 24px rgba(74, 62, 42, 0.14);
}

.pn-prev:hover .pn-tag { transform: translateX(-3px); }
.pn-next:hover .pn-tag { transform: translateX(3px); }

[data-theme="dark"] .pn-card:hover {
    border-color: rgba(212, 169, 74, 0.5);
}

.pn-disabled {
    visibility: hidden;
}

/* ===== 翻阅过场：书页扫过屏幕后跳转（纯 transform，GPU 合成，流畅不卡） ===== */
body.page-flipping main {
    transition: transform 0.55s cubic-bezier(0.65, 0.05, 0.35, 1), opacity 0.55s ease;
}
body.page-flipping-next main { transform: translateX(-26px); opacity: 0.88; }
body.page-flipping-prev main { transform: translateX(26px); opacity: 0.88; }

.page-flip {
    position: fixed;
    inset: 0;
    z-index: 9998;
    pointer-events: none;
    background: var(--bg-card);
}
.page-flip::before {
    /* 行进方向前缘的卷边阴影 */
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 140px;
    pointer-events: none;
}
.page-flip.to-next::before { left: 0; background: linear-gradient(to right, rgba(74, 62, 42, 0.18), transparent); }
.page-flip.to-prev::before { right: 0; background: linear-gradient(to left, rgba(74, 62, 42, 0.18), transparent); }
.page-flip::after {
    /* 纸面微光，制造书页受光感 */
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(165deg, rgba(255, 255, 255, 0.10), rgba(0, 0, 0, 0.05) 70%);
}
.page-flip.to-next { animation: flipFromRight 0.55s cubic-bezier(0.7, 0.08, 0.3, 1) forwards; }
.page-flip.to-prev { animation: flipFromLeft 0.55s cubic-bezier(0.7, 0.08, 0.3, 1) forwards; }
@keyframes flipFromRight {
    from { transform: translateX(103%) rotateZ(0.4deg); }
    to   { transform: translateX(0) rotateZ(0deg); }
}
@keyframes flipFromLeft {
    from { transform: translateX(-103%) rotateZ(-0.4deg); }
    to   { transform: translateX(0) rotateZ(0deg); }
}

/* ===== 资源分享页：列表 + 占位动画 ===== */
.res-list { max-width: 640px; margin: 0 auto; display: grid; gap: 14px; }
.res-card { border: 1px solid var(--border-color, #e5e0d8); border-radius: 12px; padding: 16px 18px; background: var(--bg-card, #fafafa); }
.res-card h3 { margin: 0 0 6px; font-size: 17px; }
.res-card p { margin: 0 0 10px; color: var(--text-sub, #777); font-size: 14px; line-height: 1.7; }
.res-card a { font-size: 14px; }

.res-scene { position: relative; width: 300px; height: 190px; margin: 0 auto; }
.res-wrench { position: absolute; left: 24px; top: 52px; font-size: 72px; cursor: pointer; user-select: none; z-index: 2; }
.res-wrench:hover { filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.18)); }
.res-wrench.working { animation: wrenchWork 2.2s ease-in-out; }
@keyframes wrenchWork {
    0%   { transform: translate(0, 0) rotate(0deg); }
    25%  { transform: translate(155px, -5px) rotate(-105deg); }
    38%  { transform: translate(155px, -5px) rotate(-75deg); }
    50%  { transform: translate(155px, -5px) rotate(-105deg); }
    62%  { transform: translate(155px, -5px) rotate(-75deg); }
    74%  { transform: translate(155px, -5px) rotate(-105deg); }
    100% { transform: translate(0, 0) rotate(0deg); }
}
.res-screw { position: absolute; right: 26px; top: 64px; width: 52px; height: 52px; z-index: 3; }   /* 压在扳手(z2)之上：扳手头藏在螺丝下面 */
.res-screw.spinning { animation: screwSpin 2.2s ease-in-out; }
@keyframes screwSpin {
    0%, 25%  { transform: rotate(0deg); }
    38%, 50% { transform: rotate(-45deg); }
    62%, 74% { transform: rotate(-95deg); }
    76%, 100% { transform: rotate(-90deg); }
}
.res-note { margin-top: 18px; color: var(--text-sub, #777); line-height: 2; font-size: 15px; }
.res-note p { animation: resFade 0.8s ease both; }
.res-hint { margin-top: 10px; font-size: 13px; color: var(--text-sub, #999); }
@keyframes resFade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.res-snake-img { width: 180px; max-width: 60%; cursor: pointer; user-select: none; -webkit-user-drag: none; }
.res-snake-img.shake { animation: resShake 0.5s ease; }
@keyframes resShake { 0%, 100% { transform: rotate(0); } 20% { transform: rotate(-8deg); } 40% { transform: rotate(8deg); } 60% { transform: rotate(-6deg); } 80% { transform: rotate(6deg); } }

.res-chain { font-size: 110px; line-height: 1; cursor: pointer; user-select: none; display: inline-block; }
.res-chain.bump { animation: resBump 0.35s ease; }
@keyframes resBump { 0%, 100% { transform: scale(1); } 40% { transform: scale(1.25) rotate(-6deg); } }
.res-chain.broken { animation: resBreak 0.6s ease both; cursor: default; }
@keyframes resBreak { 0% { transform: scale(1); } 40% { transform: scale(1.4) rotate(10deg); } 100% { transform: scale(1); } }

/* 详情页落地：普通跳转=整页淡入；从归档页"打开文档"进入=纸面衔接（无整页闪烁） */
.detail-page { animation: pageFadeIn 0.45s ease both; }
@keyframes pageFadeIn { from { opacity: 0; } to { opacity: 1; } }

/* —— 归档页纸面渐满 → 跳转 → 详情页：同色纸面覆盖层续接 —— */
/* body.arch-landing 由内联脚本在首帧绘制前添加：关闭整页淡入，避免闪断 */
.detail-page.arch-landing { animation: none; }
.detail-page.arch-landing main {
    animation: archSettle 0.7s ease 0.2s both;
}
@keyframes archSettle {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: none; }
}
/* 全屏纸面覆盖层：颜色=归档页放大尾声的纸色（由脚本注入），停顿后缓缓退场 */
.arch-entry-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    opacity: 1;
    transition: opacity 0.85s ease 0.3s;
}
.arch-entry-overlay.release { opacity: 0; }