/* ==========================================================================
   TCY Server — Endfield HUD Skin v2  (明日方舟·终末地 官网设计语言)
   --------------------------------------------------------------------------
   参考真实官网 endfield.gryphline.com 的设计语言，在【保留粉白色系】前提下重构：
     · 左侧固定图标导航轨 (signature rail)
     · ▽// kicker + ↘ EN 方框标签 + 大 CN 标题 的分区头系统
     · 巨型幽灵背景字 (ghost typography)
     · 地形等高线 / 点阵网格纹理
     · 等宽分数计数器 (01 / 08、1/4)、危险斜纹、虚线 HUD 弧、竖排书脊文字
     · 粉色 punch 强调块（替代终末地的酸性黄）

   作用域约定：
     · 导航轨 (.tcy-nav-bar) 为全站通用（桌面=左轨，窄屏=顶部条）。
     · 首页内容样式统一用 .md-content:has(.parallax-header) 限定，绝不外溢到文档页。
   加载顺序在 extra.css 之后 → 覆盖生效。

   ⚠️ 铁律：绝不给 <details>（.home-fold-card）本身加 clip-path / contain / transform，
   否则会破坏浏览器原生的折叠隐藏，令关闭态仍布局全部内容→撑高滚动区（v1 的 bug）。
   折叠卡一律装饰【内层 wrapper】。
   ========================================================================== */

:root {
    /* ---- Endfield 附加令牌（全部由现有品牌色派生，未引入异色相）---- */
    --ef-ink:        #37474f;                     /* 深字 / 主技术线 */
    --ef-line:       rgba(69, 90, 100, 0.28);     /* 细描边 hairline */
    --ef-line-soft:  rgba(69, 90, 100, 0.14);
    --ef-accent:     var(--tcy-color-primary, #ec407a);  /* 品牌粉 */
    --ef-accent-2:   #00acc1;                      /* 站点既有青（次强调/科技感）*/
    --ef-punch:      #ff2d7e;                      /* 高饱和玫红 punch（替代酸黄，仍属粉系）*/
    --ef-mono:       'Fira Code', ui-monospace, SFMono-Regular, 'Cascadia Mono', monospace;
    --ef-disp:       'ZCOOL KuaiLe', 'Noto Serif SC', cursive;
    --ef-cut:        14px;                          /* 面板切角 */
    --ef-cut-sm:     9px;
    --ef-tick:       15px;                          /* 边角括号臂长 */
    --ef-rail-w:     74px;                          /* 左侧导航轨宽度 */
    --ef-panel-bg:   rgba(255, 255, 255, 0.9);   /* 破框后每块要够不透明，才能在花哨背景上读清 */
    /* 极淡点阵纹理（HUD 底噪）*/
    --ef-dot: radial-gradient(rgba(69,90,100,0.11) 1px, transparent 1.4px);
}

/* =========================================================================
   0. 通用工具
   ========================================================================= */

/* 切角轮廓（左上+右下斜切）。仅用于【非 details】元素。 */
.ef-cut,
.md-content:has(.parallax-header) .home-section:not(.home-fold-card),
.md-content:has(.parallax-header) .nav-card,
.md-content:has(.parallax-header) .addr-card,
.md-content:has(.parallax-header) .marquee-item {
    clip-path: polygon(
        var(--ef-cut) 0, 100% 0, 100% calc(100% - var(--ef-cut)),
        calc(100% - var(--ef-cut)) 100%, 0 100%, 0 var(--ef-cut));
}

/* 四角 L 括号：单元素 4 段渐变，crisp、零额外 DOM */
.ef-ticks { position: relative; }
.ef-ticks::before {
    content: ''; position: absolute; inset: 7px; pointer-events: none; z-index: 3;
    --c: var(--ef-accent);
    background:
        linear-gradient(var(--c), var(--c)) left  top    / var(--ef-tick) 2px no-repeat,
        linear-gradient(var(--c), var(--c)) left  top    / 2px var(--ef-tick) no-repeat,
        linear-gradient(var(--c), var(--c)) right bottom / var(--ef-tick) 2px no-repeat,
        linear-gradient(var(--c), var(--c)) right bottom / 2px var(--ef-tick) no-repeat;
    opacity: .5;
}

/* 危险斜纹带 */
.ef-hazard {
    background-image: repeating-linear-gradient(45deg,
        var(--ef-punch) 0 8px, transparent 8px 16px);
}

/* =========================================================================
   1. 导航轨 —— 桌面左侧固定图标轨 / 窄屏顶部条
   ========================================================================= */

/* 通用（两态共享）：等宽编号计数 */
.tcy-nav-links { counter-reset: efnav; }
.tcy-nav-links a { counter-increment: efnav; }

/* ---------- 窄屏（< 76.25em）：精修顶部条 ---------- */
.tcy-nav-bar {
    border-radius: 2px !important;
    clip-path: polygon(16px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 16px) 100%, 0 100%, 0 12px);
    background: linear-gradient(135deg, rgba(255,255,255,0.90), rgba(255,248,250,0.82)) !important;
    border: 1px solid var(--ef-line) !important;
    box-shadow: 0 10px 30px rgba(31,38,135,0.08), inset 0 1px 0 rgba(255,255,255,0.6) !important;
    padding: 8px 14px !important;
    gap: 8px !important;
}
.tcy-nav-bar::before {
    content: '' !important; position: absolute; left: 16px; right: 12px; top: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--ef-accent) 20%, var(--ef-accent-2) 80%, transparent) !important;
    opacity: .5;
}
.tcy-nav-left { position: relative; padding-right: 10px; margin-right: 2px; display: inline-flex; align-items: center; }
.tcy-nav-left::before {
    content: 'INDEX'; font-family: var(--ef-mono); font-size: .6rem; letter-spacing: .22em;
    font-weight: 700; color: var(--ef-accent); padding: 3px 9px;
    border: 1px solid var(--ef-line); background: rgba(255,255,255,0.7);
    clip-path: polygon(6px 0,100% 0,100% calc(100% - 6px),calc(100% - 6px) 100%,0 100%,0 6px);
    white-space: nowrap;
}
.tcy-nav-links a {
    border-radius: 2px !important;
    clip-path: polygon(7px 0,100% 0,100% calc(100% - 7px),calc(100% - 7px) 100%,0 100%,0 7px);
    background: rgba(255,255,255,0.34) !important;
    border: 1px solid var(--ef-line-soft) !important;
    box-shadow: none !important;
    font-family: var(--ef-disp) !important;
    padding: 7px 13px !important;
}
.tcy-nav-links a .tcy-nav-label::before {
    content: counter(efnav, decimal-leading-zero);
    font-family: var(--ef-mono); font-size: .62em; font-weight: 700; letter-spacing: .04em;
    color: color-mix(in srgb, var(--tcy-nav-item-color, var(--ef-accent)) 70%, #90a4ae);
    margin-right: .5em; opacity: .82; vertical-align: 1px;
}
.tcy-nav-links a:hover {
    background: color-mix(in srgb, var(--tcy-nav-item-color, var(--ef-accent)) 10%, #fff) !important;
    border-color: color-mix(in srgb, var(--tcy-nav-item-color, var(--ef-accent)) 40%, var(--ef-line)) !important;
    box-shadow: 0 4px 14px color-mix(in srgb, var(--tcy-nav-item-color, var(--ef-accent)) 20%, transparent) !important;
    transform: translateY(-1px);
}
.tcy-nav-links a.active {
    background: color-mix(in srgb, var(--tcy-nav-item-color, var(--ef-accent)) 12%, #fff) !important;
    border-color: color-mix(in srgb, var(--tcy-nav-item-color, var(--ef-accent)) 55%, var(--ef-line)) !important;
    position: relative;
}
.tcy-nav-links a.active::before {
    content: ''; position: absolute; left: 0; top: 18%; bottom: 18%; width: 3px;
    background: color-mix(in srgb, var(--tcy-nav-item-color, var(--ef-accent)) 85%, var(--ef-punch));
}

/* ---------- 桌面（≥ 76.25em）：转为左侧固定图标轨 ---------- */
@media screen and (min-width: 76.25em) {
    .tcy-nav-bar {
        position: fixed !important;
        left: 0; top: 0; bottom: 0;
        width: var(--ef-rail-w);
        height: 100vh;
        margin: 0 !important;
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: 4px !important;
        padding: 12px 8px 14px !important;
        border-radius: 0 !important;
        clip-path: none !important;
        border: none !important;
        border-right: 1px solid var(--ef-line) !important;
        background: linear-gradient(180deg, rgba(255,255,255,0.94), rgba(255,248,250,0.88)) !important;
        box-shadow: 6px 0 24px rgba(31,38,135,0.06) !important;
        overflow: visible !important;
        z-index: 9;
    }
    /* 顶部竖向扫描高光 */
    .tcy-nav-bar::before {
        left: 0 !important; right: auto !important; top: 0 !important;
        width: 2px !important; height: 46% !important;
        background: linear-gradient(180deg, var(--ef-accent) 8%, var(--ef-accent-2) 70%, transparent) !important;
    }
    /* 轨顶品牌铭牌 */
    .tcy-nav-left {
        flex-direction: column; padding: 0 0 8px; margin: 0 0 6px;
        border-bottom: 1px solid var(--ef-line-soft); justify-content: center;
    }
    .tcy-nav-left::before {
        content: 'TCY'; font-size: .64rem; letter-spacing: .12em; padding: 5px 0; width: 100%;
        text-align: center; border-color: var(--ef-line-soft);
        color: var(--ef-punch);
    }
    .tcy-nav-links {
        flex-direction: column; align-items: stretch; justify-content: flex-start;
        gap: 3px !important; flex: 1 1 auto; min-height: 0;
        overflow-y: auto; overflow-x: visible;
        scrollbar-width: none;
    }
    .tcy-nav-links::-webkit-scrollbar { width: 0; height: 0; }
    .tcy-nav-links a {
        flex-direction: column; gap: 3px !important;
        padding: 9px 2px 7px !important;
        border-radius: 0 !important;
        clip-path: none !important;
        border: 1px solid transparent !important;
        background: transparent !important;
        text-align: center;
    }
    .tcy-nav-links a .tcy-nav-icon { width: 22px; height: 22px; }
    .tcy-nav-links a .tcy-nav-icon svg { width: 22px; height: 22px; }
    /* 图标下的等宽编号（label 隐藏为 tooltip，编号单独显示）*/
    .tcy-nav-links a .tcy-nav-label {
        position: absolute; left: calc(100% + 12px); top: 50%; transform: translateY(-50%) translateX(-4px);
        white-space: nowrap; font-size: .82rem; font-weight: 700; color: var(--ef-ink);
        background: rgba(255,255,255,0.96);
        border: 1px solid var(--ef-line);
        box-shadow: 0 8px 24px rgba(31,38,135,0.14);
        padding: 6px 12px; border-radius: 2px;
        clip-path: polygon(7px 0,100% 0,100% calc(100% - 7px),calc(100% - 7px) 100%,0 100%,0 7px);
        opacity: 0; pointer-events: none; z-index: 20;
        transition: opacity .18s ease, transform .18s ease;
    }
    .tcy-nav-links a .tcy-nav-label::before {
        /* tooltip 里保留编号前缀 */
        margin-right: .55em;
    }
    .tcy-nav-links a:hover .tcy-nav-label {
        opacity: 1; transform: translateY(-50%) translateX(0); pointer-events: none;
    }
    /* 图标下方的小编号 */
    .tcy-nav-links a::after {
        content: counter(efnav, decimal-leading-zero);
        font-family: var(--ef-mono); font-size: .56rem; font-weight: 700; letter-spacing: .06em;
        color: color-mix(in srgb, var(--tcy-nav-item-color, var(--ef-accent)) 62%, #b0bec5);
        opacity: .8;
    }
    .tcy-nav-links a:hover {
        background: color-mix(in srgb, var(--tcy-nav-item-color, var(--ef-accent)) 9%, #fff) !important;
        border-color: transparent !important; transform: none;
    }
    .tcy-nav-links a.active {
        background: color-mix(in srgb, var(--tcy-nav-item-color, var(--ef-accent)) 12%, #fff) !important;
        border-color: transparent !important;
    }
    .tcy-nav-links a.active::before {
        left: 0; top: 14%; bottom: 14%; width: 3px;
    }
    .tcy-nav-links a.active::after { opacity: 1; }

    /* 内容/头部为轨让位（避免与 JS 写入的 --tcy-nav-bar-height 打架：轨为整屏高，
       会把该变量写成 ~100vh，故必须显式把 header 顶部拉回 0）*/
    .md-header { top: 0 !important; padding-left: var(--ef-rail-w); }
    .md-grid {
        max-width: min(88vw, calc(100vw - var(--ef-rail-w) - 3rem)) !important;
        margin-left: calc(var(--ef-rail-w) + 1.4rem) !important;
        margin-right: auto !important;
    }
    /* 首页英雄区满血出血时也要避开轨 */
    .md-content:has(.parallax-header) .parallax-header.ef-hero {
        margin-left: calc(-1.4rem) ;
    }
}

/* =========================================================================
   2. HERO —— 电影级 HUD 英雄区（首页）
   ========================================================================= */
.parallax-header.ef-hero {
    border-radius: 4px;
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.35), 0 16px 44px rgba(0,0,0,0.16);
    min-height: 540px;
}

/* HUD 取景框层（parallax.js 不 transform 它 → 稳定悬浮）*/
.ef-hud-frame {
    position: absolute; inset: 0; z-index: 2; pointer-events: none;
    background-image: var(--ef-dot); background-size: 22px 22px;
}
.ef-hud-frame::before, .ef-hud-frame::after {
    content: ''; position: absolute; width: 44px; height: 44px; border-style: solid;
    border-color: rgba(255,255,255,0.9); filter: drop-shadow(0 1px 3px rgba(0,0,0,0.4));
}
.ef-hud-frame::before { top: 16px; left: 16px; border-width: 2px 0 0 2px; }
.ef-hud-frame::after  { bottom: 42px; right: 16px; border-width: 0 2px 2px 0; }

.ef-hud-top, .ef-hud-bottom {
    position: absolute; left: 26px; right: 26px; display: flex; justify-content: space-between;
    align-items: center; gap: 12px; font-family: var(--ef-mono); letter-spacing: .16em;
    font-weight: 600; color: rgba(255,255,255,0.94); text-shadow: 0 1px 4px rgba(0,0,0,0.55);
}
.ef-hud-top { top: 22px; font-size: .72rem; }
.ef-hud-bottom { bottom: 30px; font-size: .66rem; letter-spacing: .14em; flex-wrap: wrap; }
.ef-hud-tag {
    padding: 3px 10px; border: 1px solid rgba(255,255,255,0.55); background: rgba(0,0,0,0.2);
    clip-path: polygon(6px 0,100% 0,100% calc(100% - 6px),calc(100% - 6px) 100%,0 100%,0 6px);
}
.ef-hud-bottom span { display: inline-flex; align-items: center; gap: 6px; }
.ef-hud-bottom span::before {
    content: ''; width: 7px; height: 7px; background: var(--ef-accent-2);
    box-shadow: 0 0 8px var(--ef-accent-2); clip-path: polygon(50% 0,100% 50%,50% 100%,0 50%);
}

/* 竖排书脊文字 */
.ef-hero-spine {
    position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
    writing-mode: vertical-rl; text-orientation: mixed; z-index: 3;
    font-family: var(--ef-mono); font-size: .7rem; letter-spacing: .34em; font-weight: 700;
    color: rgba(255,255,255,0.82); text-shadow: 0 1px 3px rgba(0,0,0,0.5);
    pointer-events: none;
}

/* Hero 文案 */
.ef-hero-content { position: relative; z-index: 4; }
.ef-hero-kicker {
    display: inline-flex; align-items: center; gap: 12px; font-family: var(--ef-mono);
    font-size: .8rem; letter-spacing: .28em; font-weight: 700; color: #fff;
    text-shadow: 0 1px 4px rgba(0,0,0,0.4); margin-bottom: 14px; text-transform: uppercase;
}
.ef-hero-kicker::before, .ef-hero-kicker::after { content: ''; width: 34px; height: 2px; background: linear-gradient(90deg, transparent, var(--ef-accent)); }
.ef-hero-kicker::after { background: linear-gradient(90deg, var(--ef-accent), transparent); }
.parallax-title.ef-hero-title { letter-spacing: .08em !important; }
.ef-hero-en {
    font-family: var(--ef-mono); font-size: clamp(.7rem, 1.6vw, .95rem); letter-spacing: .34em;
    font-weight: 600; color: rgba(255,255,255,0.9); text-transform: uppercase;
    text-shadow: 0 1px 4px rgba(0,0,0,0.45); margin: 4px 0 16px;
}
/* Hero CTA 角形按钮组 */
.ef-hero-cta { display: inline-flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; justify-content: center; }
.ef-cta-tile {
    display: inline-flex; align-items: center; gap: 9px; padding: 12px 22px;
    font-weight: 700; font-family: var(--ef-disp); font-size: .98rem; text-decoration: none !important;
    color: #fff !important; background: rgba(20,24,28,0.42);
    border: 1px solid rgba(255,255,255,0.5); backdrop-filter: blur(3px);
    clip-path: polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
    transition: transform .25s ease, background .25s ease, border-color .25s ease;
}
.ef-cta-tile .ef-cta-en { font-family: var(--ef-mono); font-size: .62rem; letter-spacing: .12em; opacity: .8; }
.ef-cta-tile:hover { transform: translateY(-2px); border-color: #fff; background: rgba(20,24,28,0.6); }
.ef-cta-tile.ef-cta-primary {
    background: linear-gradient(135deg, var(--ef-punch), var(--ef-accent));
    border-color: transparent; box-shadow: 0 8px 22px rgba(255,45,126,0.35);
}
.ef-cta-tile.ef-cta-primary:hover { box-shadow: 0 12px 30px rgba(255,45,126,0.45); }

/* 传送门（现代化主页）按钮：与打字机特效同处视差图正下方那一行，文字居中、按钮靠右 */
.md-content:has(.parallax-header) .ef-typed-row {
    display: flex; align-items: center; justify-content: center; gap: 16px;
    flex-wrap: wrap; width: 100%; margin: 6px 0 2px;
}
.ef-typed-row #typed-text { flex: 1 1 auto; min-width: 0; text-align: center; }
.ef-typed-row .ef-typed-portal { flex: 0 0 auto; margin: 0 !important; }
@media screen and (max-width: 820px) {
    .ef-typed-row { gap: 10px; }
    /* 窄屏传送门换到第二行居中，标签不折行、整体收成一枚干净胶囊 */
    .ef-typed-row .ef-typed-portal { padding: 7px 16px !important; font-size: .76rem !important; white-space: nowrap; }
}

@media screen and (max-width: 720px) {
    .ef-hud-top, .ef-hud-bottom, .ef-hero-spine { display: none; }
    .ef-hud-frame::before { top: 10px; left: 10px; width: 26px; height: 26px; }
    .ef-hud-frame::after  { bottom: 34px; right: 10px; width: 26px; height: 26px; }
    .ef-hero-kicker { font-size: .64rem; letter-spacing: .16em; }
    .ef-hero-kicker::before, .ef-hero-kicker::after { width: 16px; }
    .parallax-header.ef-hero { min-height: 380px; }
}

/* =========================================================================
   3. 分区头系统 —— ▽// kicker + ↘ EN 方框标签 + 大 CN 标题 + 编号 + 幽灵字
   ========================================================================= */
.md-content:has(.parallax-header) .ef-chapter { position: relative; margin: 46px 0; }
.md-content:has(.parallax-header) { counter-reset: efchap efhead; }
#mindmap-container { contain: layout paint; }  /* 隔离力导向图重绘，减少拖动时的整页布局抖动 */

/* 工具簇：马年按钮改用干净扁平 SVG，尺寸/配色与打印·搜索图标统一（不再是发糊的 emoji 方块）*/
.tcy-horse-btn { color: var(--ef-accent); line-height: 0; }
.tcy-horse-btn svg { width: 18px; height: 18px; display: block; }
.md-content:has(.parallax-header) .ef-chapter { counter-increment: efchap; }

.md-content:has(.parallax-header) .ef-head {
    position: relative; overflow: hidden;
    counter-increment: efhead;
    display: flex; align-items: flex-end; gap: 16px;
    padding: 12px 16px 12px; margin-bottom: 22px;
    border-bottom: 2px solid var(--ef-accent);
    /* 逐块底纸：分区头自带一层浅底，在花哨背景上清晰，且读作「标签条」而非大盒子 */
    background: linear-gradient(180deg, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.7) 100%);
    box-shadow: 0 2px 12px rgba(31, 38, 135, 0.06);
}
/* 幽灵背景大字（英文，超大、极淡、被裁剪） */
.md-content:has(.parallax-header) .ef-head::after {
    content: attr(data-ghost);
    position: absolute; right: -6px; bottom: -18px; z-index: 0;
    font-family: var(--ef-mono); font-weight: 800; font-size: clamp(3.2rem, 9vw, 7rem);
    letter-spacing: .04em; line-height: .8;
    color: transparent; -webkit-text-stroke: 1.4px rgba(69,90,100,0.10);
    pointer-events: none; white-space: nowrap; text-transform: uppercase;
}
.ef-head-copy { position: relative; z-index: 1; flex: 1 1 auto; min-width: 0; }
.ef-head-kicker {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--ef-mono); font-size: .7rem; letter-spacing: .22em; font-weight: 700;
    color: var(--ef-accent-2); text-transform: uppercase; margin-bottom: 8px;
}
.ef-head-kicker::before { content: '▽'; font-size: .7em; }
.ef-head-label {
    display: inline-block; font-family: var(--ef-mono); font-size: .72rem; letter-spacing: .18em;
    font-weight: 700; color: #fff; background: linear-gradient(135deg, var(--ef-punch), var(--ef-accent));
    padding: 4px 12px 5px; margin-bottom: 10px;
    clip-path: polygon(0 0, 100% 0, calc(100% - 9px) 100%, 0 100%);
}
.ef-head-label::before { content: '↘ '; }
.md-content:has(.parallax-header) .ef-head-title {
    margin: 0 !important; border: none !important; padding: 0 !important;
    font-family: var(--ef-disp); font-size: clamp(1.5rem, 3.4vw, 2.4rem); line-height: 1.15;
    color: var(--ef-ink); letter-spacing: .01em;
}
.ef-head-index {
    position: relative; z-index: 1; flex: 0 0 auto; align-self: flex-start;
    font-family: var(--ef-mono); font-weight: 800; letter-spacing: .06em;
    padding-top: 4px;
    font-size: 0;   /* 隐藏任何硬编码数字，改用 CSS 计数器自动编号，删增分区不留空号 */
}
.ef-head-index::before { content: '// '; color: var(--ef-line); font-size: 1.1rem; }
.ef-head-index::after { content: counter(efhead, decimal-leading-zero); color: var(--ef-accent); font-size: 1.1rem; }

/* =========================================================================
   4. 首页面板 / 卡片族
   ========================================================================= */
.md-content:has(.parallax-header) .home-section:not(.home-fold-card) {
    position: relative;
    background: var(--ef-panel-bg) !important;
    border: 1px solid var(--ef-line) !important;
    border-radius: 0 !important;
    box-shadow: 0 10px 30px rgba(31,38,135,0.06) !important;
    padding: 24px 22px !important;
}
/* 右下角青色 L 括号 */
.md-content:has(.parallax-header) .home-section:not(.home-fold-card)::after {
    content: ''; position: absolute; right: 12px; bottom: 12px; width: 16px; height: 16px;
    border-right: 2px solid var(--ef-accent-2); border-bottom: 2px solid var(--ef-accent-2);
    opacity: .5; pointer-events: none;
}

/* 首页内标题（.home-section 内的 h2/h3 与 markdown ##）左侧强调竖条 */
.md-content:has(.parallax-header) .home-section-title,
.md-content:has(.parallax-header) .home-section > h2,
.md-content:has(.parallax-header) .home-section > h3 {
    position: relative; padding-left: 15px; border-bottom: none;
}
.md-content:has(.parallax-header) .home-section-title::before,
.md-content:has(.parallax-header) .home-section > h2::before,
.md-content:has(.parallax-header) .home-section > h3::before {
    content: ''; position: absolute; left: 0; top: .14em; bottom: .14em; width: 4px;
    background: linear-gradient(180deg, var(--ef-accent), var(--ef-accent-2));
    clip-path: polygon(0 0,100% 0,100% calc(100% - 4px),50% 100%,0 calc(100% - 4px));
}

/* 导航卡 / 地址卡 —— 切角 + 右上 tick + hover 青色侧条 */
.md-content:has(.parallax-header) .nav-card,
.md-content:has(.parallax-header) .addr-card {
    position: relative; border-radius: 0 !important;
    background: rgba(255,255,255,0.92) !important; border: 1px solid var(--ef-line) !important;
    contain: layout style;
    transition: transform var(--transition-normal,.3s), box-shadow var(--transition-normal,.3s), border-color var(--transition-normal,.3s);
}
.md-content:has(.parallax-header) .nav-card::after,
.md-content:has(.parallax-header) .addr-card::after {
    content: ''; position: absolute; top: 8px; right: 8px; width: 10px; height: 10px;
    border-top: 2px solid var(--ef-accent); border-right: 2px solid var(--ef-accent);
    opacity: .45; transition: opacity var(--transition-normal,.3s);
}
.md-content:has(.parallax-header) .nav-card:hover,
.md-content:has(.parallax-header) .addr-card:hover {
    transform: translateY(-3px) !important; border-color: var(--ef-accent) !important;
    box-shadow: 0 10px 26px rgba(236,64,122,0.14), -4px 0 0 var(--ef-accent-2) !important;
}
.md-content:has(.parallax-header) .nav-card:hover::after,
.md-content:has(.parallax-header) .addr-card:hover::after { opacity: 1; }
.md-content:has(.parallax-header) .nav-icon {
    border-radius: 0 !important;
    clip-path: polygon(5px 0,100% 0,100% calc(100% - 5px),calc(100% - 5px) 100%,0 100%,0 5px);
}
.md-content:has(.parallax-header) .why-feature {
    border-radius: 0 !important; border-left: 3px solid var(--ef-accent) !important;
    background: rgba(255,255,255,0.86) !important;
}
.md-content:has(.parallax-header) .marquee-item { border-radius: 0 !important; border: 1px solid var(--ef-line); }

/* 公告卡 —— 左侧危险斜纹带 + 直角 */
.md-content:has(.parallax-header) .announce-card { border-radius: 0 !important; position: relative; overflow: hidden; }
.md-content:has(.parallax-header) .announce-card::after {
    content: ''; position: absolute; top: 0; bottom: 0; left: 0; width: 6px;
    background: repeating-linear-gradient(45deg, rgba(255,255,255,0.55) 0 5px, transparent 5px 10px);
    opacity: .4;
}

/* =========================================================================
   5. 折叠卡（<details>）—— 安全装饰：绝不给 details 加 clip-path/contain！
   仅用直角 + 左accent + 右上 tick（伪元素不改变布局/裁剪）。
   ========================================================================= */
.md-content:has(.parallax-header) .home-fold-card {
    border-radius: 0 !important;
    background: var(--ef-panel-bg) !important;
    border: 1px solid var(--ef-line) !important;
    border-left: 3px solid var(--ef-accent) !important;
    box-shadow: 0 10px 30px rgba(31,38,135,0.06) !important;
    position: relative;
}
.md-content:has(.parallax-header) .home-fold-card > summary { position: relative; }
.md-content:has(.parallax-header) .home-fold-card > summary::after {
    content: ''; position: absolute; top: -6px; right: -4px; width: 11px; height: 11px;
    border-top: 2px solid var(--ef-accent-2); border-right: 2px solid var(--ef-accent-2);
    opacity: .55; pointer-events: none;
}

/* =========================================================================
   6. 角形按钮（传送门）
   ========================================================================= */
.md-content:has(.parallax-header) .portal-gate-btn {
    border-radius: 2px !important;
    clip-path: polygon(9px 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%,0 9px);
    font-family: var(--ef-mono), var(--ef-disp) !important; letter-spacing: .03em;
}
.md-content:has(.parallax-header) .portal-community-bar {
    border-radius: 2px !important;
    clip-path: polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
}

/* =========================================================================
   7. 技术分隔线（首页 <hr>）
   ========================================================================= */
.md-content:has(.parallax-header) hr {
    border: none; height: 1px; margin: 34px 0; position: relative; overflow: visible;
    background: linear-gradient(90deg, transparent, var(--ef-line) 12%, var(--ef-line) 88%, transparent);
}
.md-content:has(.parallax-header) hr::before,
.md-content:has(.parallax-header) hr::after {
    content: ''; position: absolute; top: 50%; width: 6px; height: 6px;
    transform: translateY(-50%) rotate(45deg); background: var(--ef-accent); opacity: .6;
}
.md-content:has(.parallax-header) hr::before { left: 8%; }
.md-content:has(.parallax-header) hr::after  { right: 8%; background: var(--ef-accent-2); }

/* =========================================================================
   8. 全出血影像分区（Endfield 式：整幅截图 + 竖排标签 + 遮罩文字）
   ========================================================================= */
.md-content:has(.parallax-header) .ef-bleed {
    position: relative; margin: 30px 0; border: 1px solid var(--ef-line);
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
    overflow: hidden; min-height: 260px; display: flex; align-items: flex-end;
    background-size: cover; background-position: center;
}
.md-content:has(.parallax-header) .ef-bleed::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(90deg, rgba(20,24,28,0.62) 0%, rgba(20,24,28,0.22) 46%, transparent 72%);
}
.md-content:has(.parallax-header) .ef-bleed::after {
    content: ''; position: absolute; inset: 0; background-image: var(--ef-dot); background-size: 20px 20px; opacity: .5; mix-blend-mode: overlay;
}
.ef-bleed-body { position: relative; z-index: 2; padding: 22px 26px; color: #fff; max-width: 640px; }
.ef-bleed-body h3, .ef-bleed-body h4 { color: #fff !important; border: none !important; margin: 0 0 6px !important; text-shadow: 0 2px 8px rgba(0,0,0,0.5); }
.ef-bleed-body p { color: rgba(255,255,255,0.92) !important; text-shadow: 0 1px 4px rgba(0,0,0,0.5); }
.ef-bleed-tag {
    position: absolute; top: 0; right: 0; z-index: 3; writing-mode: vertical-rl;
    background: linear-gradient(180deg, var(--ef-punch), var(--ef-accent)); color: #fff;
    font-family: var(--ef-mono); font-size: .66rem; letter-spacing: .18em; font-weight: 700;
    padding: 12px 6px; text-transform: uppercase;
}

/* 分数计数器徽标（1/4 之类）*/
.ef-count { font-family: var(--ef-mono); font-weight: 700; color: var(--ef-accent); letter-spacing: .04em; }

/* =========================================================================
   8b. 星轨选择器（GAMEPLAY 玩法支柱）—— 左侧星轨切换 / 右侧展示台
   纯 CSS radio-hack，无 JS、instant-navigation 安全。各节点 --pc 为该支柱主色。
   ========================================================================= */
.md-content:has(.parallax-header) .ef-orbit { display: flex; gap: 22px; align-items: stretch; margin: 8px 0 4px; }
.ef-orbit-radio { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

/* --- 左：星轨 --- */
.ef-orbit-rail {
    position: relative; flex: 0 0 232px; min-width: 190px;
    display: flex; flex-direction: column; justify-content: space-between; gap: 4px; padding: 8px 0;
}
.ef-orbit-rail::before {   /* 粉→青 渐变竖轨 */
    content: ''; position: absolute; left: 22px; top: 30px; bottom: 30px; width: 2px;
    background: linear-gradient(180deg, var(--ef-accent), var(--ef-accent-2)); opacity: .5;
}
.ef-orbit-rail::after {     /* 轨顶端点小菱 */
    content: ''; position: absolute; left: 18px; top: 22px; width: 9px; height: 9px;
    transform: rotate(45deg); background: var(--ef-accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--ef-accent) 18%, transparent);
}
.ef-orbit-node {
    display: flex; align-items: center; gap: 13px; background: none; border: 0;
    padding: 5px 6px; cursor: pointer; text-align: left; position: relative; z-index: 1;
    -webkit-tap-highlight-color: transparent;
}
.ef-orbit-dot {
    width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center; font-size: 20px;
    background: rgba(255,255,255,0.95); border: 2px solid var(--ef-line);
    box-shadow: 0 4px 12px rgba(31,38,135,0.08);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease, background .25s ease;
}
.ef-orbit-copy { display: flex; flex-direction: column; line-height: 1.12; }
.ef-orbit-name { font-family: var(--ef-disp); font-weight: 700; font-size: 1rem; color: var(--ef-ink); transition: color .25s; }
.ef-orbit-en { font-family: var(--ef-mono); font-size: .58rem; letter-spacing: .14em; color: #90a4ae; margin-top: 3px; }
.ef-orbit-node:hover .ef-orbit-dot { border-color: var(--pc, var(--ef-accent)); transform: translateX(2px); }

/* --- 右：展示台 --- */
.ef-orbit-stage {
    position: relative; flex: 1 1 auto; min-height: 372px; overflow: hidden;
    border: 1px solid var(--ef-line); background: #eceff1;
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}
.ef-orbit-view {
    position: absolute; inset: 0; display: flex; align-items: flex-end;
    background-size: cover; background-position: center;
    opacity: 0; visibility: hidden; transform: scale(1.05);
    transition: opacity .4s ease, transform .7s ease, visibility .4s;
}
.ef-orbit-view::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(90deg, rgba(18,22,26,0.8) 0%, rgba(18,22,26,0.42) 46%, rgba(18,22,26,0.05) 80%);
}
.ef-orbit-view::after {
    content: ''; position: absolute; inset: 0; background-image: var(--ef-dot); background-size: 20px 20px; opacity: .5; mix-blend-mode: overlay;
}
.ef-orbit-ghost {
    position: absolute; right: 12px; top: -8px; z-index: 1; margin: 0;
    font-family: var(--ef-mono); font-weight: 800; font-size: clamp(2.4rem, 6vw, 4.8rem);
    letter-spacing: .04em; line-height: .9; color: transparent;
    -webkit-text-stroke: 1.4px rgba(255,255,255,0.18); pointer-events: none; text-transform: uppercase; white-space: nowrap;
}
.ef-orbit-content { position: relative; z-index: 2; padding: 24px 26px 26px; color: #fff; max-width: 600px; }
.ef-orbit-kicker { font-family: var(--ef-mono); font-size: .7rem; letter-spacing: .2em; font-weight: 700; color: #fff; opacity: .9; }
.ef-orbit-title { margin: 6px 0 8px !important; color: #fff !important; border: none !important; padding: 0 !important; font-family: var(--ef-disp); font-size: clamp(1.5rem, 3vw, 2.2rem); text-shadow: 0 2px 10px rgba(0,0,0,0.5); }
.ef-orbit-desc { color: rgba(255,255,255,0.94) !important; text-shadow: 0 1px 4px rgba(0,0,0,0.5); margin: 0 0 13px !important; }
.ef-orbit-mods { display: flex; flex-wrap: wrap; gap: 7px; }
.ef-orbit-mods span {
    font-family: var(--ef-mono); font-size: .72rem; font-weight: 600; color: #fff;
    padding: 4px 10px; border: 1px solid rgba(255,255,255,0.5); background: rgba(255,255,255,0.14);
    clip-path: polygon(5px 0,100% 0,100% calc(100% - 5px),calc(100% - 5px) 100%,0 100%,0 5px);
}
.ef-orbit-vtag {
    position: absolute; top: 0; right: 0; z-index: 3; writing-mode: vertical-rl;
    background: linear-gradient(180deg, var(--ef-punch), var(--pc, var(--ef-accent)));
    color: #fff; font-family: var(--ef-mono); font-size: .64rem; letter-spacing: .18em; font-weight: 700;
    padding: 12px 6px; text-transform: uppercase;
}
.ef-orbit-num {
    position: absolute; left: 26px; top: 18px; z-index: 3;
    font-family: var(--ef-mono); font-weight: 800; font-size: .92rem; letter-spacing: .1em;
    color: #fff; text-shadow: 0 1px 4px rgba(0,0,0,0.55);
}
.ef-orbit-num b { color: var(--pc, var(--ef-accent)); filter: brightness(1.5); }

/* --- 选中态（radio-hack）：轨点发光 + 名字变色 + 对应视图显示 --- */
#pil-magic:checked  ~ .ef-orbit-rail label[for="pil-magic"]  .ef-orbit-dot,
#pil-tech:checked   ~ .ef-orbit-rail label[for="pil-tech"]   .ef-orbit-dot,
#pil-combat:checked ~ .ef-orbit-rail label[for="pil-combat"] .ef-orbit-dot,
#pil-anime:checked  ~ .ef-orbit-rail label[for="pil-anime"]  .ef-orbit-dot,
#pil-life:checked   ~ .ef-orbit-rail label[for="pil-life"]   .ef-orbit-dot,
#pil-tcy:checked    ~ .ef-orbit-rail label[for="pil-tcy"]    .ef-orbit-dot {
    border-color: var(--pc, var(--ef-accent));
    background: linear-gradient(135deg, #fff, color-mix(in srgb, var(--pc, var(--ef-accent)) 16%, #fff));
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--pc, var(--ef-accent)) 22%, transparent),
                0 8px 20px color-mix(in srgb, var(--pc, var(--ef-accent)) 40%, transparent);
    transform: scale(1.12);
}
#pil-magic:checked  ~ .ef-orbit-rail label[for="pil-magic"]  .ef-orbit-name,
#pil-tech:checked   ~ .ef-orbit-rail label[for="pil-tech"]   .ef-orbit-name,
#pil-combat:checked ~ .ef-orbit-rail label[for="pil-combat"] .ef-orbit-name,
#pil-anime:checked  ~ .ef-orbit-rail label[for="pil-anime"]  .ef-orbit-name,
#pil-life:checked   ~ .ef-orbit-rail label[for="pil-life"]   .ef-orbit-name,
#pil-tcy:checked    ~ .ef-orbit-rail label[for="pil-tcy"]    .ef-orbit-name { color: var(--pc, var(--ef-accent)); }

#pil-magic:checked  ~ .ef-orbit-stage .ef-orbit-view[data-pillar="magic"],
#pil-tech:checked   ~ .ef-orbit-stage .ef-orbit-view[data-pillar="tech"],
#pil-combat:checked ~ .ef-orbit-stage .ef-orbit-view[data-pillar="combat"],
#pil-anime:checked  ~ .ef-orbit-stage .ef-orbit-view[data-pillar="anime"],
#pil-life:checked   ~ .ef-orbit-stage .ef-orbit-view[data-pillar="life"],
#pil-tcy:checked    ~ .ef-orbit-stage .ef-orbit-view[data-pillar="tcy"] {
    opacity: 1; visibility: visible; transform: scale(1);
}
/* 键盘可达：聚焦选中项时给轨点一个焦点环 */
.ef-orbit-radio:focus-visible ~ .ef-orbit-rail .ef-orbit-node .ef-orbit-dot { outline: 2px dashed var(--ef-accent); outline-offset: 3px; }

/* 移动端：星轨转为顶部横排节点，展示台在下 */
@media screen and (max-width: 820px) {
    .md-content:has(.parallax-header) .ef-orbit { flex-direction: column; gap: 14px; }
    .ef-orbit-rail { flex: none; flex-direction: row; flex-wrap: wrap; justify-content: center; gap: 8px 10px; padding: 0; }
    .ef-orbit-rail::before, .ef-orbit-rail::after { display: none; }
    .ef-orbit-node { flex-direction: column; gap: 5px; align-items: center; }
    .ef-orbit-copy { align-items: center; }
    .ef-orbit-en { display: none; }
    .ef-orbit-dot { width: 40px; height: 40px; font-size: 18px; }
    .ef-orbit-stage { min-height: 300px; }
    .ef-orbit-ghost { font-size: 2.6rem; }
}
@media (prefers-reduced-motion: reduce) {
    .ef-orbit-view { transition: opacity .01ms !important; transform: none !important; }
}

/* =========================================================================
   8c. 动态中枢切换器（HUB）—— 星链状标签切换 总览 / 公告 / 活动
   纯 CSS radio-hack；视图用 display 切换，保证首屏默认视图里的 #mindmap-container 可测量。
   ========================================================================= */
.md-content:has(.parallax-header) .ef-switch { position: relative; margin: 6px 0 4px; }
.ef-switch-radio { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

/* --- 星链标签栏：三站点由渐变星链连接 --- */
.ef-switch-tabs { position: relative; display: flex; justify-content: center; gap: clamp(30px, 9vw, 96px); margin: 2px 0 28px; }
.ef-switch-tabs::before {
    content: ''; position: absolute; top: 28px; left: 14%; right: 14%; height: 2px;
    background: linear-gradient(90deg, var(--ef-accent), var(--ef-accent-2)); opacity: .45; z-index: 0;
}
.ef-switch-tab {
    position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; gap: 8px;
    cursor: pointer; -webkit-tap-highlight-color: transparent;
}
.ef-switch-dot {
    width: 58px; height: 58px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center; font-size: 25px;
    background: rgba(255,255,255,0.96); border: 2px solid var(--ef-line);
    box-shadow: 0 4px 12px rgba(31,38,135,0.08);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease, background .25s ease;
}
.ef-switch-copy { display: flex; flex-direction: column; align-items: center; line-height: 1.14; }
.ef-switch-name { font-family: var(--ef-disp); font-weight: 700; font-size: 1.02rem; color: var(--ef-ink); transition: color .25s; }
.ef-switch-en { font-family: var(--ef-mono); font-size: .56rem; letter-spacing: .16em; color: #90a4ae; margin-top: 3px; }
.ef-switch-tab:hover .ef-switch-dot { border-color: var(--tc, var(--ef-accent)); transform: translateY(-2px); }

/* --- 视图容器：display 切换 + 进场动画 --- */
.ef-switch-view { display: none; animation: efSwitchIn .42s ease both; }
@keyframes efSwitchIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* --- 选中态（radio-hack）：站点发光 + 名字染色 + 对应视图显示 --- */
#hub-overview:checked ~ .ef-switch-tabs label[for="hub-overview"] .ef-switch-dot,
#hub-notice:checked   ~ .ef-switch-tabs label[for="hub-notice"]   .ef-switch-dot,
#hub-event:checked    ~ .ef-switch-tabs label[for="hub-event"]    .ef-switch-dot {
    border-color: var(--tc, var(--ef-accent));
    background: linear-gradient(135deg, #fff, color-mix(in srgb, var(--tc, var(--ef-accent)) 16%, #fff));
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--tc, var(--ef-accent)) 22%, transparent),
                0 8px 20px color-mix(in srgb, var(--tc, var(--ef-accent)) 40%, transparent);
    transform: scale(1.1);
}
#hub-overview:checked ~ .ef-switch-tabs label[for="hub-overview"] .ef-switch-name,
#hub-notice:checked   ~ .ef-switch-tabs label[for="hub-notice"]   .ef-switch-name,
#hub-event:checked    ~ .ef-switch-tabs label[for="hub-event"]    .ef-switch-name { color: var(--tc, var(--ef-accent)); }
#hub-overview:checked ~ .ef-switch-body .ef-switch-view[data-hub="overview"],
#hub-notice:checked   ~ .ef-switch-body .ef-switch-view[data-hub="notice"],
#hub-event:checked    ~ .ef-switch-body .ef-switch-view[data-hub="event"] { display: block; }
.ef-switch-radio:focus-visible ~ .ef-switch-tabs .ef-switch-tab .ef-switch-dot { outline: 2px dashed var(--ef-accent); outline-offset: 3px; }

/* --- 公告视图：沿用 index.md 内 .announce-card，仅补节奏 --- */
.ef-switch-view[data-hub="notice"] { max-width: 860px; margin: 0 auto; }
.ef-switch-view[data-hub="notice"] .ef-switch-foot { margin: 4px 4px 0; font-size: 0.9em; color: #78909c; }

/* --- 活动视图：新春庆典切角红卡 --- */
.ef-event-card {
    position: relative; overflow: hidden; text-align: center; padding: 34px 24px;
    background: linear-gradient(135deg, #b71c1c 0%, #d32f2f 100%); color: #fff;
    border: 2px solid #ffb300; box-shadow: 0 10px 30px rgba(183,28,28,0.28);
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
    max-width: 860px; margin: 0 auto;
}
.ef-event-deco { position: absolute; font-size: 5rem; opacity: .14; user-select: none; pointer-events: none; }
.ef-event-deco-1 { top: -8px; right: 22px; transform: rotate(15deg); }
.ef-event-deco-2 { bottom: -8px; left: 22px; transform: rotate(-15deg); }
.ef-event-title {
    margin: 0 0 10px !important; padding: 0 !important; color: #fff !important; border: none !important;
    font-family: 'ZCOOL KuaiLe', var(--ef-disp), cursive; font-size: clamp(1.55rem, 3.6vw, 2.15rem);
    text-shadow: 0 2px 6px rgba(0,0,0,0.32);
}
.ef-event-desc { color: #ffe0b2 !important; margin: 0 auto 24px !important; max-width: 620px; font-size: 1.05rem; }
.ef-event-btn {
    display: inline-flex; align-items: center; gap: 8px;
    /* !important 必需：.md-typeset a { background:none } 比 .ef-event-btn 更具体，否则白底被吃掉、深字压红卡看不清 */
    background: linear-gradient(to bottom, #fff, #fff8e1) !important; color: #bf360c !important;
    font-weight: bold; font-size: 1.08rem; padding: 12px 38px; text-decoration: none !important;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2); border: 2px solid #ff6f00;
    clip-path: polygon(9px 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%,0 9px);
    transition: transform .2s ease;
}
.ef-event-btn:hover { transform: scale(1.04); }

/* 移动端：星链间距收窄、隐藏 EN 小字 */
@media screen and (max-width: 820px) {
    .ef-switch-tabs { gap: 34px; }
    .ef-switch-tabs::before { left: 7%; right: 7%; }
    .ef-switch-dot { width: 50px; height: 50px; font-size: 21px; }
    .ef-switch-en { display: none; }
}
@media (prefers-reduced-motion: reduce) {
    .ef-switch-view { animation: none !important; }
}

/* =========================================================================
   8d. 建站历史时间轴（ef-timeline）+ 页脚紧凑官网地址（ef-addr-mini）
   ========================================================================= */
.ef-timeline { position: relative; margin: 2px 0 0; padding-left: 26px; }
.ef-timeline::before {
    content: ''; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px;
    background: linear-gradient(180deg, var(--ef-accent), var(--ef-accent-2)); opacity: .5;
}
.ef-tl-item { position: relative; padding: 0 0 18px; }
.ef-tl-item:last-child { padding-bottom: 0; }
.ef-tl-item::before {
    content: ''; position: absolute; left: -23px; top: 5px; width: 10px; height: 10px;
    transform: rotate(45deg); background: #fff; border: 2px solid var(--ef-accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--ef-accent) 14%, transparent);
}
.ef-tl-item.is-now::before {
    background: var(--ef-punch); border-color: var(--ef-punch);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--ef-punch) 22%, transparent),
                0 0 14px color-mix(in srgb, var(--ef-punch) 55%, transparent);
}
.ef-tl-date { font-family: var(--ef-mono); font-weight: 700; font-size: .82rem; letter-spacing: .05em; color: var(--ef-accent-2); }
.ef-tl-item.is-now .ef-tl-date { color: var(--ef-punch); }
.ef-tl-badge {
    margin-left: 9px; font-family: var(--ef-mono); font-size: .58rem; letter-spacing: .14em; font-weight: 700;
    color: #fff; background: var(--ef-punch); padding: 2px 8px; vertical-align: 1px;
    clip-path: polygon(0 0, 100% 0, calc(100% - 5px) 100%, 0 100%);
}
.ef-tl-body { margin: 5px 0 0; color: #455a64; line-height: 1.72; }
.ef-tl-body p { margin: 0 0 6px; }
.ef-tl-body p:last-child { margin-bottom: 0; }
.ef-tl-body code {
    font-family: var(--ef-mono); font-size: .86em; background: #fff0f5;
    color: #d81b60; padding: 1px 6px; border-radius: 4px;
}
.ef-tl-foot { margin: 16px 0 0; padding-top: 12px; border-top: 1px dashed var(--ef-line); font-size: .9em; color: #78909c; }
.ef-tl-foot strong { color: var(--ef-accent-2); }

/* 页脚紧凑官网地址 */
.ef-addr-mini { display: grid; grid-template-columns: repeat(auto-fill, minmax(228px, 1fr)); gap: 10px; }
.ef-addr-chip {
    display: flex; flex-direction: column; gap: 2px; padding: 10px 15px;
    background: rgba(255,255,255,0.74); border: 1px solid var(--ef-line); border-left: 3px solid var(--ef-accent);
    text-decoration: none !important;
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.ef-addr-chip:hover { transform: translateY(-2px); border-left-color: var(--ef-punch); box-shadow: 0 6px 16px rgba(31,38,135,0.1); }
.ef-addr-name { font-weight: 700; color: var(--ef-ink) !important; font-size: .92rem; }
.ef-addr-host { font-family: var(--ef-mono); font-size: .78rem; color: var(--ef-accent-2); letter-spacing: .02em; }
.ef-addr-stat { font-family: var(--ef-mono); font-size: .7rem; color: #90a4ae; }
.ef-addr-note { margin: 12px 0 0; font-size: .84em; color: #90a4ae; line-height: 1.6; }

/* =========================================================================
   9. 性能层：content-visibility / contain（仅安全分区，避开含 canvas/iframe 测量的分区）
   ========================================================================= */
.md-content:has(.parallax-header) .ef-cv {
    content-visibility: auto;
    contain-intrinsic-size: auto 480px;   /* 占位高度，避免滚动条跳动 */
}

/* =========================================================================
   10. 主题兼容：手电筒(暗) 主题下轨与分区头的最小适配
   ========================================================================= */
body.flashlight-mode .tcy-nav-bar {
    background: linear-gradient(180deg, rgba(20,24,28,0.92), rgba(24,20,26,0.88)) !important;
    border-right-color: rgba(128,203,196,0.18) !important;
}
body.flashlight-mode .tcy-nav-left::before { background: rgba(20,24,28,0.6); color: var(--ef-punch); border-color: rgba(128,203,196,0.2); }
body.flashlight-mode .tcy-nav-links a .tcy-nav-label { background: rgba(24,28,32,0.96); color: #eceff1; border-color: rgba(128,203,196,0.22); }
body.flashlight-mode .md-content:has(.parallax-header) .ef-head-title { color: #eceff1; }
body.flashlight-mode .md-content:has(.parallax-header) .ef-head::after { -webkit-text-stroke-color: rgba(128,203,196,0.12); }

/* =========================================================================
   11. 无障碍：减弱动态
   ========================================================================= */
@media (prefers-reduced-motion: reduce) {
    .ef-cta-tile, .md-content:has(.parallax-header) .nav-card,
    .md-content:has(.parallax-header) .addr-card { transition: none !important; }
}

/* =========================================================================
   12. 突破 MkDocs 页面框：首页去掉「玻璃卡片盒」+ 加宽，让分区更接近终末地整幅式。
   仅首页（:has(.parallax-header)）。各 .home-section 自带底色保证可读性，
   分区头 / 分隔线 / 出血图则直接浮在站点背景上。
   ========================================================================= */
.md-content__inner:has(.parallax-header) {
    /* 破框：去掉整块「大玻璃卡片盒」（无底色/描边/圆角/阴影），
       改为下面的「逐块底纸」——每个分区头/面板/说明各自带浅色底，
       既打破 MkDocs 页面框，又保证在花哨背景上逐块可读。 */
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    border-radius: 0 !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}
.md-content__inner:has(.parallax-header):hover { box-shadow: none !important; }

/* 逐块底纸：散落的说明文字 / 一言 / 引用 / 打字机，各自一层浅底，确保清晰 */
.md-content:has(.parallax-header) .hitokoto-container,
.md-content__inner:has(.parallax-header) > p,
.md-content__inner:has(.parallax-header) > blockquote {
    background: rgba(255, 255, 255, 0.85);
    border-radius: 6px;
    padding: 8px 16px;
    box-shadow: 0 2px 10px rgba(31, 38, 135, 0.05);
}
.md-content:has(.parallax-header) #typed-text {
    display: inline-block;
    background: rgba(255, 255, 255, 0.85);
    border-radius: 6px;
    padding: 6px 16px;
}

@media screen and (min-width: 76.25em) {
    /* 桌面：首页正文加宽到「轨右侧到视口右缘」几乎全宽 */
    .md-main__inner:has(.parallax-header) {
        max-width: calc(100vw - var(--ef-rail-w) - 2.4rem) !important;
        margin-left: calc(var(--ef-rail-w) + 1.2rem) !important;
        margin-right: 1.2rem !important;
    }
}

/* =========================================================================
   13. 移动端界面整顿（< 76.25em）
   目标：不给顶部保留任何常驻栏；
     · 导航 = 左上角一颗浮动汉堡球 → 打开原生左抽屉；抽屉顶部提供「✕ 关闭」按钮。
     · 工具行(搜索/主题/马/打印) = 收到右下角紧凑簇（搜索点开为原生全屏浮层）。
     · 音乐播放器由 JS 默认缩为左下角小球。
   注意：原生汉堡 [for=__drawer] 嵌在 #tcy-custom-nav .tcy-nav-left .tcy-header-brand 内，
        故整条 nav 改为 position:fixed 脱离文档流、只保留汉堡为浮球，其余全部隐藏。
   ========================================================================= */
@media screen and (max-width: 76.234375em) {
    /* --- 顶部不再占位：整条自定义 nav 脱流，仅留汉堡浮球 --- */
    #tcy-custom-nav {
        position: fixed !important; top: 10px; left: 10px; z-index: 30;
        width: auto !important; max-width: none !important; height: auto !important;
        margin: 0 !important; padding: 0 !important; gap: 0 !important;
        background: none !important; border: 0 !important; box-shadow: none !important;
        border-radius: 0 !important; clip-path: none !important;
    }
    #tcy-custom-nav::before { display: none !important; }
    #tcy-custom-nav .tcy-nav-links { display: none !important; }
    #tcy-custom-nav .tcy-nav-left {
        padding: 0 !important; margin: 0 !important; border: 0 !important; flex-direction: row !important;
    }
    #tcy-custom-nav .tcy-nav-left::before { display: none !important; }
    #tcy-custom-nav .tcy-header-brand {
        background: none !important; border: 0 !important; box-shadow: none !important; padding: 0 !important;
    }
    /* 品牌里只留汉堡，隐藏 logo 与站名 */
    #tcy-custom-nav .tcy-header-brand .md-logo,
    #tcy-custom-nav .tcy-header-brand .md-header__title { display: none !important; }
    #tcy-custom-nav .md-header__button[for="__drawer"] {
        display: flex !important; align-items: center; justify-content: center;
        width: 46px; height: 46px; margin: 0 !important; padding: 0 !important;
        border-radius: 50%; color: var(--ef-accent);
        background: rgba(255,255,255,0.95);
        border: 1px solid var(--ef-line-soft);
        box-shadow: 0 6px 18px rgba(31,38,135,0.18);
    }
    /* 顶部对齐：header 已空（tcy-header-tools 移到右下角），彻底折叠为 0；
       同时去掉正文顶距，让英雄区贴到视口最顶，消除顶部那条空位。 */
    .md-header { top: 0 !important; height: 0 !important; min-height: 0 !important; padding: 0 !important; overflow: visible !important; }
    .md-header__inner { min-height: 0 !important; height: 0 !important; padding: 0 !important; }
    .md-content__inner:has(.parallax-header) { padding-top: 0 !important; margin-top: 0 !important; }
    .parallax-header.ef-hero { margin-top: 0 !important; }

    /* 抽屉打开时，隐藏所有浮动件（右下工具簇 / 左下音乐球 / 左上汉堡浮球），避免与抽屉重叠。
       抽屉自带「✕ 关闭」与点击遮罩关闭，无需保留汉堡。用 display:none 更彻底
       （音乐播放器带 data-aos，会内联 opacity，opacity:0 会被盖掉）。 */
    body:has(#__drawer:checked) .tcy-header-tools,
    body:has(#__drawer:checked) .tcy-music-player,
    body:has(#__drawer:checked) #tcy-custom-nav {
        display: none !important;
    }

    /* --- 抽屉：整齐统一版（顶部无空缺 + 全部项一致行样式）--- */
    .md-sidebar--primary { background: rgba(255,255,255,0.97) !important; }
    .md-nav--primary { padding: 0 !important; }

    /* 顶部 header：整条渐变栏，左「导航」右「✕」，紧凑 52px，无空缺；整条即关闭 label */
    .md-nav--primary > .md-nav__title {
        display: flex !important; align-items: center !important; justify-content: space-between !important;
        height: 52px !important; min-height: 52px !important; line-height: normal !important;
        padding: 0 16px !important; margin: 0 0 6px !important;
        background: linear-gradient(135deg, var(--ef-punch), var(--ef-accent)) !important;
        border: 0 !important; border-radius: 0 !important;
        box-shadow: 0 2px 10px rgba(236,64,122,0.2) !important;
        color: transparent !important; font-size: 0 !important; cursor: pointer;
        position: sticky; top: 0; z-index: 3; clip-path: none !important;
    }
    .md-nav--primary > .md-nav__title .md-nav__button.md-logo,
    .md-nav--primary > .md-nav__title .md-nav__icon { display: none !important; }
    .md-nav--primary > .md-nav__title::before {
        content: '导航 · NAVIGATION'; font-family: var(--ef-mono);
        font-size: .78rem; font-weight: 700; letter-spacing: .1em; color: #fff;
    }
    .md-nav--primary > .md-nav__title::after {
        content: '✕'; font-family: var(--ef-mono); font-size: 1.05rem; font-weight: 700; color: #fff;
        width: 30px; height: 30px; display: flex; align-items: center; justify-content: center;
        border: 1px solid rgba(255,255,255,0.65); border-radius: 6px; background: rgba(255,255,255,0.12);
    }

    /* 统一所有导航项（叶子 + 可展开）为一致的整行样式，去掉「叶子=纯文本 / 可展开=胶囊」的不一致 */
    .md-nav--primary > .md-nav__list { padding: 0 !important; margin: 0 !important; }
    .md-sidebar--primary .md-nav__item { margin: 0 !important; padding: 0 !important; }
    .md-sidebar--primary .md-nav__link,
    .md-sidebar--primary .md-nav__item--nested > .md-nav__link {
        display: flex !important; align-items: center !important; gap: .55rem;
        width: 100% !important; box-sizing: border-box !important;
        padding: 13px 16px !important; margin: 0 !important;
        background: transparent !important; border: 0 !important; border-radius: 0 !important;
        border-left: 3px solid transparent !important;
        border-bottom: 1px solid var(--ef-line-soft) !important;
        font-weight: 600 !important; letter-spacing: 0 !important;
        color: var(--ef-ink) !important; transform: none !important;
    }
    .md-sidebar--primary .md-nav__link:hover,
    .md-sidebar--primary .md-nav__item--nested > .md-nav__link:hover {
        background: color-mix(in srgb, var(--ef-accent) 9%, #fff) !important;
        border-left-color: var(--ef-accent) !important; color: var(--ef-accent) !important;
        transform: none !important;
    }
    .md-sidebar--primary .md-nav__link--active {
        background: color-mix(in srgb, var(--ef-accent) 13%, #fff) !important;
        border-left-color: var(--ef-accent) !important; color: #c2185b !important;
    }
    /* 前置图标固定在左、标签随后、展开箭头推到最右 */
    .md-sidebar--primary .tcy-sidebar-link-with-icon,
    .md-sidebar--primary .tcy-sidebar-page-with-icon { flex: 1 1 auto; min-width: 0; }
    .md-sidebar--primary .tcy-sidebar-link-with-icon .md-ellipsis,
    .md-sidebar--primary .tcy-sidebar-page-with-icon .md-ellipsis { order: 0 !important; }
    .md-sidebar--primary .tcy-sidebar-icon,
    .md-sidebar--primary .tcy-sidebar-page-icon { order: -1 !important; }
    .md-sidebar--primary .md-nav__item--nested > .md-nav__link .md-nav__icon {
        margin-left: auto !important; color: var(--ef-accent) !important; opacity: .9 !important;
    }
    /* 展开后的子菜单缩进、字重降一级，读作层级 */
    .md-sidebar--primary .md-nav__item--nested .md-nav .md-nav__link {
        padding-left: 40px !important; font-weight: 500 !important;
    }

    /* --- 工具行 → 右下角紧凑簇 --- */
    .tcy-header-tools {
        position: fixed !important; right: 12px !important; bottom: 12px !important;
        left: auto !important; top: auto !important; z-index: 28;
        width: auto !important; max-width: calc(100vw - 24px) !important;
        flex-wrap: nowrap !important; align-items: center !important;
        gap: 4px !important; padding: 5px 7px !important;
        border-radius: 16px !important;
        clip-path: polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
        background: rgba(255,255,255,0.94) !important;
        border: 1px solid var(--ef-line) !important;
        box-shadow: 0 10px 26px rgba(31,38,135,0.16) !important;
    }
    /* 搜索在窄屏用原生全屏浮层，簇内只占图标位 */
    .tcy-header-tools .md-search { flex: 0 0 auto !important; min-width: 0 !important; width: auto !important; }
    .tcy-header-tools .md-search__form { background: transparent !important; box-shadow: none !important; }

    /* --- 首页英雄区高度自适应，标题不被裁 --- */
    .parallax-header.ef-hero {
        height: auto !important;
        min-height: 58vh;
        padding: 34px 6px 42px !important;   /* 汉堡浮球悬浮在英雄区左上角装饰区，顶距不用太大 */
    }
    .parallax-header.ef-hero .ef-hero-cta { margin-top: 16px; gap: 9px; }
    .parallax-header.ef-hero .ef-cta-tile { padding: 10px 16px; font-size: .9rem; }
}