/* =========================================================
   华嫂之家 · 移动端双体验
   A 真书 3D  = 画册/墨韵编辑排版
   B 电影分镜 = 宽银幕分镜叙事
   仅 max-width:980px；桌面不受影响
   ========================================================= */

.mb-root{
  display:none;
  position:fixed;inset:0;z-index:9990;
  background:#070605;color:#F7F3EC;
  font-family:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
  overflow:hidden;
  touch-action:manipulation;
  --mb-red:#C8102E;
  --mb-red-deep:#A60E24;
  --mb-gold:#C9A961;
  --mb-ink:#F7F3EC;
  --mb-muted:rgba(247,243,236,.62);
  --mb-faint:rgba(247,243,236,.32);
  --mb-border:rgba(247,243,236,.12);
  --mb-ease:cubic-bezier(.32,.72,0,1);
  --mb-ease-out:cubic-bezier(.16,1,.3,1);
  --mb-serif:'Noto Serif SC',Georgia,'Songti SC','STSong',serif;
  --mb-latin:'Cormorant Garamond',Georgia,serif;
  --mb-top:42px;
  --mb-bot:38px;
}
.mb-root *{box-sizing:border-box}
.mb-root button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
.mb-root a{color:inherit;text-decoration:none}
.mb-root img{max-width:100%;display:block}

@media (max-width:980px){
  body.mb-active{background:#070605!important;overflow:hidden!important}
  body.mb-active::before,body.mb-active::after{display:none!important}
  body.mb-active>.nav,
  body.mb-active>.nav-dock,
  body.mb-active>.nav-menu,
  body.mb-active>main,
  body.mb-active>footer{display:none!important}
  body.mb-active .mb-root{display:block}
}
@media (min-width:981px){.mb-root{display:none!important}}

/* ========== 门禁 ========== */
.mb-gate{
  position:absolute;inset:0;z-index:50;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  padding:24px 22px;
  background:radial-gradient(ellipse 70% 55% at 50% 42%,rgba(200,16,46,.18),transparent 60%),#070605;
  transition:opacity .5s,visibility .5s;
}
.mb-gate.hidden{opacity:0;visibility:hidden;pointer-events:none}
.mb-gate-seal{
  width:60px;height:60px;border-radius:14px;
  background:linear-gradient(145deg,var(--mb-red),var(--mb-red-deep));
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mb-serif);font-weight:900;font-size:34px;color:#fff;
  box-shadow:0 14px 36px rgba(200,16,46,.4);
  animation:mbPulse 3s ease-in-out infinite;
}
@keyframes mbPulse{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
.mb-gate-title{font-family:var(--mb-serif);font-size:28px;letter-spacing:4px;font-weight:600}
.mb-gate-sub{font-size:12px;color:var(--mb-muted);letter-spacing:2px;text-align:center;line-height:1.7}
.mb-phone-icon{
  width:44px;height:70px;border:2px solid rgba(247,243,236,.35);border-radius:9px;position:relative;
  animation:mbRot 2.4s ease-in-out infinite;
}
.mb-phone-icon::after{
  content:'';position:absolute;top:6px;left:50%;transform:translateX(-50%);
  width:14px;height:2px;border-radius:1px;background:rgba(247,243,236,.35);
}
@keyframes mbRot{0%,20%{transform:rotate(0)}45%,70%{transform:rotate(90deg)}100%{transform:rotate(90deg)}}
.mb-gate-hint{font-size:10px;color:var(--mb-faint);letter-spacing:1px;margin-top:2px}

/* 一键横屏：须压过 .mb-root button{background:none;color:inherit} */
.mb-root button.mb-gate-btn{
  position:relative;
  display:flex;align-items:center;gap:12px;
  margin-top:6px;
  padding:14px 18px 14px 14px;
  min-width:min(280px,86vw);
  border-radius:999px;
  border:none !important;
  color:#ffffff !important;
  background:
    linear-gradient(135deg,rgba(255,255,255,.14),transparent 42%),
    linear-gradient(145deg,#C8102E 0%,#A60E24 58%,#7a0c1c 100%) !important;
  box-shadow:
    0 0 0 1px rgba(255,255,255,.16) inset,
    0 14px 34px rgba(200,16,46,.48),
    0 2px 0 rgba(255,255,255,.1) inset;
  overflow:hidden;
  -webkit-tap-highlight-color:transparent;
  transition:transform .22s var(--mb-ease-out),box-shadow .22s ease;
}
.mb-root button.mb-gate-btn:active{transform:scale(.97)}
.mb-gate-btn-glow{
  position:absolute;inset:-40% -20% auto auto;width:70%;height:120%;
  background:radial-gradient(circle,rgba(255,220,170,.28),transparent 68%);
  pointer-events:none;
  animation:mbGateGlow 3.2s ease-in-out infinite;
}
@keyframes mbGateGlow{0%,100%{opacity:.55;transform:translate(0,0)}50%{opacity:1;transform:translate(-6%,4%)}}
.mb-gate-btn-icon{
  position:relative;z-index:1;flex:0 0 auto;
  width:42px;height:42px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(0,0,0,.22);
  border:1px solid rgba(255,255,255,.2);
  color:#fff !important;
}
.mb-gate-btn-icon svg{display:block;stroke:#fff}
.mb-gate-btn-copy{
  position:relative;z-index:1;flex:1;min-width:0;
  display:flex;flex-direction:column;align-items:flex-start;gap:3px;text-align:left;
}
.mb-gate-btn-title{
  font-family:var(--mb-serif);
  font-size:17px;font-weight:800;letter-spacing:1px;line-height:1.25;
  color:#ffffff !important;
}
.mb-gate-btn-sub{
  font-size:11px;letter-spacing:.5px;line-height:1.35;
  color:rgba(255,255,255,.92) !important;
}
.mb-gate-btn-arrow{
  position:relative;z-index:1;flex:0 0 auto;
  font-size:18px;color:#fff !important;opacity:1;
  transform:translateX(0);
  transition:transform .22s var(--mb-ease-out);
}
.mb-root button.mb-gate-btn:hover .mb-gate-btn-arrow,
.mb-root button.mb-gate-btn:focus-visible .mb-gate-btn-arrow{transform:translateX(3px)}
.mb-root button.mb-gate-btn:focus-visible{outline:2px solid #C9A961;outline-offset:3px}

/* 就看竖版：白底 + 红字，特异性压过 .mb-root button */
.mb-root button.mb-vertical-cta--gate{
  margin-top:10px;
  width:min(300px,88vw);
  max-width:none;
  display:flex !important;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  padding:15px 20px 16px !important;
  border-radius:999px !important;
  border:3px solid #C8102E !important;
  background:#FFFFFF !important;
  color:#1A1614 !important;
  box-shadow:0 10px 28px rgba(0,0,0,.4) !important;
  -webkit-font-smoothing:antialiased;
}
.mb-root button.mb-vertical-cta--gate:active{
  transform:scale(.98);
  background:#FFF5F5 !important;
}
.mb-root button.mb-vertical-cta--gate .mb-vertical-cta-main{
  display:block;
  color:#C8102E !important;
  font-family:var(--mb-serif);
  font-size:18px !important;
  font-weight:800 !important;
  letter-spacing:.06em !important;
  line-height:1.3 !important;
  text-shadow:none !important;
}
.mb-root button.mb-vertical-cta--gate .mb-vertical-cta-sub{
  display:block;
  color:#333333 !important;
  font-size:12px !important;
  font-weight:600 !important;
  letter-spacing:.02em !important;
  line-height:1.4 !important;
  opacity:1 !important;
}
.mb-root button.mb-vertical-cta--gate:focus-visible{
  outline:2px solid #C9A961;
  outline-offset:3px;
}

/* 竖屏机身 CSS 强制横屏：整舞台旋转为逻辑横屏视口 */
.mb-root.mb-css-landscape{
  inset:auto;
  top:50%;
  left:50%;
  width:100vh;
  width:100dvh;
  height:100vw;
  height:100dvw;
  transform:translate(-50%,-50%) rotate(90deg);
  transform-origin:center center;
}
@supports (height:100dvh){
  .mb-root.mb-css-landscape{
    width:100dvh;
    height:100dvw;
  }
}

/* ========== 舞台壳 ========== */
.mb-stage{
  position:absolute;inset:0;z-index:10;
  opacity:0;visibility:hidden;pointer-events:none;
  display:flex;flex-direction:column;
  transition:opacity .45s;
}
.mb-stage.active{opacity:1;visibility:visible;pointer-events:auto}

.mb-topbar{
  height:var(--mb-top);flex-shrink:0;z-index:40;
  display:flex;align-items:center;justify-content:space-between;gap:8px;padding:0 12px;
  min-width:0;
}
.mb-top-left{
  display:flex;align-items:center;gap:8px;min-width:0;flex:1 1 auto;
}
.mb-brand{
  display:flex;align-items:center;gap:8px;flex-shrink:0;
  color:inherit;text-decoration:none;
}
.mb-brand-seal{
  width:24px;height:24px;border-radius:6px;background:var(--mb-red);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mb-serif);font-weight:700;font-size:13px;flex-shrink:0;
}
.mb-brand-text{font-family:var(--mb-serif);font-size:12px;font-weight:600;white-space:nowrap}
.mb-brand-text small{
  display:block;font-family:var(--mb-latin);font-style:italic;font-size:8px;
  color:var(--mb-faint);letter-spacing:1px;margin-top:-1px;
}
/* logo 旁快捷导航：照片墙 / 团队风采 */
.mb-quick-nav{
  display:flex;align-items:center;gap:4px;min-width:0;
  padding-left:8px;margin-left:2px;
  border-left:1px solid rgba(201,169,97,.22);
}
.mb-qlink{
  display:inline-flex;align-items:center;justify-content:center;
  padding:4px 9px;border-radius:999px;
  font-size:10px;font-weight:600;letter-spacing:.04em;
  color:rgba(255,244,230,.78);
  border:1px solid transparent;
  background:rgba(255,255,255,.04);
  text-decoration:none;white-space:nowrap;
  transition:background .2s,color .2s,border-color .2s;
  -webkit-tap-highlight-color:transparent;
}
.mb-qlink:active,
.mb-qlink:hover{
  color:#fff;
  border-color:rgba(201,169,97,.35);
  background:rgba(201,169,97,.14);
}
.mb-top-actions{display:flex;gap:5px;flex-shrink:0}
.mb-chip{
  padding:4px 10px;border-radius:999px;font-size:10px;
  border:1px solid var(--mb-border);color:var(--mb-muted);background:rgba(255,255,255,.03);
}
.mb-chip.active{color:#fff;border-color:rgba(200,16,46,.5);background:rgba(200,16,46,.22)}

/* 选型：左右两大圆角方块，点击区域大 */
.mb-picker{
  position:absolute;inset:0;z-index:45;
  display:flex;align-items:center;justify-content:center;
  padding:12px 16px 14px;
  background:
    radial-gradient(ellipse 50% 50% at 25% 40%,rgba(200,16,46,.14),transparent 55%),
    radial-gradient(ellipse 45% 45% at 80% 60%,rgba(201,169,97,.08),transparent 50%),
    #070605;
  transition:opacity .4s,visibility .4s;
}
.mb-picker.hidden{opacity:0;visibility:hidden;pointer-events:none}
.mb-picker-inner{
  width:min(960px,100%);height:100%;max-height:100%;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  min-height:0;box-sizing:border-box;
}
.mb-picker-eyebrow{font-size:10px;letter-spacing:3px;color:var(--mb-gold);flex-shrink:0}
.mb-picker-title{
  font-family:var(--mb-serif);font-size:clamp(18px,3.4vw,26px);font-weight:600;
  flex-shrink:0;letter-spacing:.08em;
}
.mb-picker-sub{
  font-size:11px;color:var(--mb-muted);text-align:center;line-height:1.5;max-width:460px;flex-shrink:0;
}
.mb-picker-cards{
  display:grid;grid-template-columns:1fr 1fr;gap:14px;
  width:100%;flex:1 1 auto;min-height:0;
  align-items:stretch;
}
.mb-pick-card{
  position:relative;
  border-radius:22px;
  padding:16px 14px 14px;
  text-align:center;
  min-height:0;height:100%;
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  box-shadow:0 16px 40px rgba(0,0,0,.32);
  -webkit-tap-highlight-color:transparent;
  touch-action:manipulation;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.mb-pick-card.book{
  border-color:rgba(201,169,97,.35);
  background:
    radial-gradient(ellipse 80% 60% at 30% 20%,rgba(201,169,97,.12),transparent 55%),
    linear-gradient(155deg,rgba(255,255,255,.08),rgba(40,28,18,.35));
}
.mb-pick-card.film{
  border-color:rgba(200,16,46,.4);
  background:
    radial-gradient(ellipse 80% 60% at 70% 25%,rgba(200,16,46,.16),transparent 55%),
    linear-gradient(155deg,rgba(255,255,255,.06),rgba(30,12,12,.4));
}
.mb-pick-card:active{
  transform:scale(.985);
  box-shadow:0 8px 24px rgba(0,0,0,.4);
}
.mb-pick-card .pc-badge{
  align-self:center;font-size:10px;letter-spacing:1.5px;padding:4px 10px;border-radius:999px;
  background:rgba(200,16,46,.22);color:#f3a0ad;font-weight:600;
}
.mb-pick-card.film .pc-badge{background:rgba(201,169,97,.18);color:var(--mb-gold)}
.mb-pick-card .pc-title{
  font-family:var(--mb-serif);font-size:clamp(22px,3.6vw,30px);font-weight:700;
  letter-spacing:.06em;line-height:1.15;margin-top:2px;text-align:center;width:100%;
}
.mb-pick-card .pc-desc{
  font-size:12px;line-height:1.55;color:var(--mb-muted);flex:0 1 auto;min-height:0;
  max-width:28ch;margin:0 auto;text-align:center;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.mb-pick-card .pc-preview{
  height:clamp(48px,14vh,72px);width:min(100%,220px);border-radius:12px;border:1px solid rgba(255,255,255,.1);
  position:relative;overflow:hidden;flex-shrink:0;margin:4px auto 0;
}
.mb-pick-card.book .pc-preview{background:linear-gradient(180deg,#2a221c,#171410)}
.mb-pick-card.book .pc-preview::after{
  content:'';position:absolute;inset:8px 22% 8px 16%;border-radius:4px;
  background:#1f1a15;box-shadow:0 4px 14px rgba(0,0,0,.45);
  transform:perspective(220px) rotateY(-10deg);transform-origin:left center;
}
.mb-pick-card.book .pc-preview::before{
  content:'';position:absolute;left:50%;top:6px;bottom:6px;width:2px;z-index:1;
  background:linear-gradient(#5c3b25,#c9a961,#432819);box-shadow:0 0 12px rgba(201,169,97,.35);
}
.mb-pick-card.film .pc-preview{background:linear-gradient(90deg,#0a0a0a,#1a1212 60%,#100a0a);box-shadow:inset 0 0 24px #000}
.mb-pick-card.film .pc-preview::before,.mb-pick-card.film .pc-preview::after{
  content:'';position:absolute;left:0;right:0;height:6px;
  background:repeating-linear-gradient(90deg,#050505 0 6px,#333 6px 9px);
}
.mb-pick-card.film .pc-preview::before{top:0}
.mb-pick-card.film .pc-preview::after{bottom:0}
.mb-pick-card .pc-go{
  font-size:13px;font-weight:600;opacity:.95;letter-spacing:.04em;
  color:#fff;padding-top:2px;text-align:center;width:100%;
}
.mb-pick-card.book .pc-go{color:#e8d5a8}
.mb-pick-card.film .pc-go{color:#f0a8b2}

.mb-reader{flex:1;min-height:0;position:relative;display:none}
.mb-reader.active{display:block}

/* 热区 */
.mb-hotzones{position:absolute;inset:0;z-index:25;display:flex;pointer-events:none}
.mb-hotzone{height:100%;pointer-events:auto;-webkit-tap-highlight-color:transparent}
.mb-hotzone.left,.mb-hotzone.right{width:18%;flex:0 0 18%;cursor:pointer}
.mb-hotzone.mid{flex:1;pointer-events:none}
.mb-hotzone .hz-hint{
  position:absolute;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;
  border:1px solid rgba(247,243,236,.1);
  display:flex;align-items:center;justify-content:center;
  color:rgba(247,243,236,.2);font-size:13px;opacity:0;transition:opacity .25s;pointer-events:none;
}
.mb-hotzone.left .hz-hint{left:8px}
.mb-hotzone.right .hz-hint{right:8px}
.mb-reader.active:hover .hz-hint{opacity:1}

.mb-bottombar{
  height:var(--mb-bot);flex-shrink:0;z-index:40;
  display:none;align-items:center;gap:10px;padding:0 12px;
}
.mb-bottombar.show{display:flex}
.mb-nav-btns{display:flex;gap:5px}
.mb-nav-btn{
  width:30px;height:30px;border-radius:50%;border:1px solid var(--mb-border);
  display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.03);
}
.mb-nav-btn:disabled{opacity:.25;pointer-events:none}
.mb-nav-btn svg{width:13px;height:13px}
.mb-progress{flex:1;height:2px;background:rgba(255,255,255,.08);border-radius:2px;overflow:hidden}
.mb-progress>i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--mb-red),var(--mb-gold));transition:width .35s}
.mb-page-ind{font-family:var(--mb-latin);font-style:italic;font-size:11px;color:var(--mb-faint);min-width:46px;text-align:right}

.mb-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;border-radius:999px;font-size:12px;font-weight:500;
}
.mb-btn-red{background:var(--mb-red);color:#fff}
.mb-btn-ghost{border:1px solid var(--mb-border);color:var(--mb-ink)}

/* 2026 沉浸式重构：公共舞台 */
.mb-root{
  /*
   * 横屏两侧留白（像 iPhone 便于点按）：
   * 安卓大屏 safe-area 常为 0，不能只靠 env；统一最小边距 + 安全区取大
   */
  --mb-edge-min:20px;
  --mb-safe-left:max(var(--mb-edge-min),env(safe-area-inset-left,0px));
  --mb-safe-right:max(var(--mb-edge-min),env(safe-area-inset-right,0px));
  --mb-safe-x:var(--mb-safe-left);
  --mb-stage-top:40px;
  /* 底栏偏薄：少占真书阅读高度 */
  --mb-stage-bottom:28px;
  height:100vh;height:100dvh;isolation:isolate;
  background:
    radial-gradient(ellipse at 50% 44%,rgba(105,68,39,.20),transparent 46%),
    linear-gradient(155deg,#120d09 0%,#050403 55%,#0d0806 100%);
}
/* 横屏：两侧再宽一点，避免内容贴边顶满（一加等无刘海机） */
@media (orientation:landscape){
  .mb-root{
    --mb-edge-min:28px;
    --mb-safe-left:max(var(--mb-edge-min),env(safe-area-inset-left,0px));
    --mb-safe-right:max(var(--mb-edge-min),env(safe-area-inset-right,0px));
  }
}
/* 更宽的横屏（多数安卓 20:9 横过来接近 900+） */
@media (orientation:landscape) and (min-width:820px){
  .mb-root{--mb-edge-min:36px}
}
/* CSS 强制横屏时物理仍是竖屏，但逻辑视口是横的，同样留边 */
.mb-root.mb-css-landscape{
  --mb-edge-min:28px;
  --mb-safe-left:max(var(--mb-edge-min),env(safe-area-inset-top,0px),env(safe-area-inset-bottom,0px));
  --mb-safe-right:max(var(--mb-edge-min),env(safe-area-inset-top,0px),env(safe-area-inset-bottom,0px));
}
#mb-fx-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:.8;transition:opacity .5s}
#mb-fx-canvas.is-film{opacity:.52;mix-blend-mode:screen}
.mb-stage{
  z-index:2;background:transparent;overflow:hidden;
  /* 覆盖仅用 env 的旧 padding：左右强制预留可点边 */
  padding-top:env(safe-area-inset-top,0px)!important;
  padding-bottom:env(safe-area-inset-bottom,0px)!important;
  padding-left:var(--mb-safe-left)!important;
  padding-right:var(--mb-safe-right)!important;
}
.mb-topbar{
  height:var(--mb-stage-top);padding:0 6px 0 4px;
  background:linear-gradient(180deg,rgba(7,5,4,.94),rgba(7,5,4,.68));
  border-bottom:1px solid rgba(201,169,97,.13);backdrop-filter:blur(10px);
}
.mb-top-left{gap:6px}
.mb-quick-nav{padding-left:6px;gap:3px}
.mb-qlink{padding:3px 8px;font-size:9.5px}
/* 矮横屏：品牌英文隐藏，入口缩短字 */
@media (max-height:420px){
  .mb-brand-text small{display:none}
  .mb-brand-text{font-size:11px}
  .mb-qlink{padding:2px 7px;font-size:9px}
  .mb-quick-nav{padding-left:5px}
}
@media (max-width:700px) and (orientation:landscape){
  /* 极窄横屏：团队风采 → 团队 */
  .mb-qlink[href="team.html"]{font-size:0}
  .mb-qlink[href="team.html"]::after{content:'团队';font-size:9.5px;letter-spacing:.04em}
  .mb-brand-text small{display:none}
}
.mb-bottombar{
  height:var(--mb-stage-bottom);padding:0 4px;
  background:linear-gradient(0deg,rgba(7,5,4,.96),rgba(7,5,4,.7));
  border-top:1px solid rgba(201,169,97,.12);backdrop-filter:blur(10px);
  gap:8px;
}
.mb-bottombar .mb-nav-btn{
  width:24px;height:24px;
}
.mb-bottombar .mb-nav-btn svg{width:12px;height:12px}
.mb-bottombar .mb-page-ind{font-size:10px;min-width:40px}
.mb-bottombar .mb-progress{height:1.5px}
/* 高度跟父级 flex 走，避免 100dvh 在 CSS 强制横屏 / 矮横屏算错导致裁切 */
.mb-reader{
  flex:1 1 auto;
  min-height:0;
  height:auto;
  overflow:hidden;
}
.mb-picker{
  /* stage 已有左右边距，选型页只补上下 */
  padding:10px 0 12px;
  background:radial-gradient(circle at 50% 50%,rgba(200,16,46,.09),transparent 54%);
  box-sizing:border-box;
}
.mb-picker-inner{max-width:min(880px,100%);width:100%;gap:8px;margin:0 auto;display:flex;flex-direction:column;align-items:center}
.mb-picker-title{font-size:clamp(17px,3.2vw,24px);letter-spacing:.1em}
.mb-vertical-cta{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:2px;
  padding:11px 18px 12px;
  border-radius:999px;
  transition:transform .2s var(--mb-ease),box-shadow .2s,filter .2s;
  -webkit-tap-highlight-color:transparent;
}
.mb-vertical-cta:active{
  transform:scale(.98);
  filter:brightness(1.05);
}
.mb-vertical-cta-main{
  font-family:var(--mb-serif);
  font-size:clamp(15px,2.6vw,17px);
  font-weight:700;
  letter-spacing:.12em;
  line-height:1.2;
}
.mb-vertical-cta-sub{
  font-size:10px;
  letter-spacing:.08em;
  font-weight:500;
}
/* 竖版偏好：悬浮回沉浸入口 */
.mb-reenter{
  display:none;
  position:fixed;
  z-index:9988;
  right:max(14px,env(safe-area-inset-right));
  bottom:max(18px,env(safe-area-inset-bottom));
  align-items:center;
  gap:8px;
  padding:12px 16px;
  border-radius:999px;
  background:linear-gradient(135deg,#C8102E,#A60E24);
  color:#fff;
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  box-shadow:0 12px 32px rgba(200,16,46,.4);
  border:1px solid rgba(255,255,255,.15);
  font-family:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'PingFang SC',sans-serif;
  -webkit-tap-highlight-color:transparent;
}
.mb-reenter-dot{
  width:7px;height:7px;border-radius:50%;
  background:#fff;
  box-shadow:0 0 0 4px rgba(255,255,255,.2);
  animation:mb-reenter-pulse 1.6s ease-in-out infinite;
}
@keyframes mb-reenter-pulse{
  0%,100%{transform:scale(1);opacity:1}
  50%{transform:scale(1.15);opacity:.75}
}
@media (max-width:980px){
  body.mb-prefer-vertical .mb-reenter{display:inline-flex}
  body.mb-active .mb-reenter{display:none!important}
  /* 竖版官网：禁止沉浸残留影响顶栏 */
  body.mb-prefer-vertical{
    overflow-x:hidden !important;
    overflow-y:auto !important;
    position:static !important;
    width:100% !important;
    max-width:100vw !important;
    height:auto !important;
    transform:none !important;
  }
  body.mb-prefer-vertical main,
  body.mb-prefer-vertical section{
    max-width:100vw !important;
    overflow-x:hidden !important;
  }
  body.mb-prefer-vertical .nav-dock{
    position:fixed !important;
    left:0 !important;
    right:0 !important;
    width:100% !important;
    display:flex !important;
    justify-content:center !important;
    align-items:flex-start !important;
    text-align:center !important;
    z-index:10050 !important;
    pointer-events:none !important;
    transform:none !important;
  }
  body.mb-prefer-vertical .nav-dock .nav,
  body.mb-prefer-vertical #nav.nav{
    position:fixed !important;
    display:inline-flex !important;
    top:max(10px, env(safe-area-inset-top, 0px)) !important;
    left:calc(var(--hs-vv-left, 0px) + var(--hs-vv-width, 100vw) / 2) !important;
    right:auto !important;
    transform:translateX(-50%) !important;
    margin:0 !important;
    width:auto !important;
    min-width:0 !important;
    max-width:min(390px, calc(var(--hs-vv-width, 100vw) - 24px)) !important;
    justify-content:space-between !important;
    box-sizing:border-box !important;
    overflow:hidden !important;
    pointer-events:auto !important;
  }
  body.mb-prefer-vertical .nav-links{display:none !important}
  body.mb-prefer-vertical .nav-burger{display:flex !important}
  body.mb-prefer-vertical .nav-brand{min-width:0 !important}
  body.mb-prefer-vertical .nav-brand-text{
    min-width:0 !important;
    max-width:240px !important;
    overflow:hidden !important;
    text-overflow:ellipsis !important;
    white-space:nowrap !important;
  }
}
@media (min-width:981px){
  .mb-reenter{display:none!important}
}
.mb-hotzones{z-index:20}
.mb-hotzone.left,.mb-hotzone.right{width:15%;flex-basis:15%}
.mb-hotzone .hz-hint{background:rgba(15,10,7,.48);border:1px solid rgba(201,169,97,.18);backdrop-filter:blur(5px)}
.mb-live-status{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.mb-error{display:none;position:absolute;inset:0;z-index:60;align-items:center;justify-content:center;background:#090706;text-align:center;padding:24px}
.mb-root[data-phase="error"] .mb-error{display:flex}
.mb-error-card{max-width:390px;padding:22px;border:1px solid rgba(201,169,97,.22);background:#17110d;box-shadow:0 30px 80px #000}
.mb-error-card h2{font-family:var(--mb-serif);font-size:20px;margin-bottom:8px}
.mb-error-card p{font-size:12px;color:var(--mb-muted);line-height:1.7;margin-bottom:14px}

/* iPhone 15 横屏约 852×393：底栏 14px，多给书页 */
@media (max-height:420px){
  .mb-root{
    --mb-stage-top:34px;
    --mb-stage-bottom:14px;
    --mb-edge-min:24px;
  }
  .mb-bottombar{gap:6px}
  .mb-bottombar .mb-nav-btn{width:12px;height:12px;border-width:0.5px}
  .mb-bottombar .mb-nav-btn svg{width:8px;height:8px}
  .mb-bottombar .mb-page-ind{font-size:8px;min-width:28px;line-height:1}
  .mb-bottombar .mb-progress{height:1px}
  .mb-picker{padding:6px 0 8px}
  .mb-picker-inner{max-width:min(860px,100%);width:100%;gap:6px}
  .mb-picker-cards{gap:10px}
  .mb-chip{padding:3px 9px;font-size:9.5px}
  .mb-picker-sub{display:none}
  .mb-root button.mb-vertical-cta--gate{padding:13px 16px 14px !important;width:min(280px,88vw)}
  .mb-root button.mb-vertical-cta--gate .mb-vertical-cta-main{font-size:17px !important}
  .mb-root button.mb-vertical-cta--gate .mb-vertical-cta-sub{font-size:11px !important}
  .mb-gate-btn-title{font-size:16px !important}
  .mb-gate-btn-sub{font-size:11px !important;color:rgba(255,255,255,.92) !important}
  .mb-pick-card{border-radius:18px;padding:12px 12px 11px;gap:6px}
  .mb-pick-card .pc-title{font-size:clamp(18px,3.8vw,24px)}
  .mb-pick-card .pc-desc{font-size:10.5px;-webkit-line-clamp:2}
  .mb-pick-card .pc-preview{height:clamp(40px,12vh,56px);border-radius:10px}
  .mb-pick-card .pc-go{font-size:12px}
}
@media (max-height:360px){
  .mb-root{--mb-stage-top:32px;--mb-stage-bottom:14px}
  .mb-picker-eyebrow{display:none}
  .mb-pick-card{border-radius:16px;padding:10px}
  .mb-pick-card .pc-desc{display:none}
}

@media (prefers-reduced-motion:reduce){
  .mb-root *,.mb-root *::before,.mb-root *::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.12s!important;scroll-behavior:auto!important}
  #mb-fx-canvas{display:none!important}
}