/* =========================================================
   齐齐哈尔 · 城与校 — 全屏分页 H5
   东方画册视觉系统 / 零依赖 / 移动优先
   ========================================================= */

:root{
  --ink:#141210;
  --ink-2:#1d1a17;
  --paper:#f7f3ec;
  --paper-2:#efe8dc;
  --brick:#a6402f;
  --gold:#c8a24a;
  --ice:#2c7fb8;
  --muted:#7d7468;
  --line:rgba(20,18,16,.14);
  --line-l:rgba(247,243,236,.22);
  --sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --num:"Bodoni 72","Didot","Times New Roman",Georgia,"Songti SC",serif;
  --ease:cubic-bezier(.22,.61,.36,1);
  --bounce:cubic-bezier(.2,1.5,.4,1);
  --top:150px;
  --bottom:104px;
  --accent:var(--gold);
  --pad:22px;
}

*,*::before,*::after{box-sizing:border-box}
html,body{height:100%;margin:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:auto}
body{
  overflow:hidden;background:var(--ink);color:var(--paper);
  font-family:var(--sans);font-size:16px;line-height:1.8;letter-spacing:.012em;
  -webkit-font-smoothing:antialiased;overscroll-behavior:none;
  touch-action:pan-y;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--gold);outline-offset:3px;border-radius:4px;
}
::selection{background:var(--brick);color:var(--paper)}
.skip{position:fixed;left:-9999px;top:0;z-index:9999;padding:12px 18px;background:var(--paper);color:var(--ink)}
.skip:focus{left:12px;top:12px}

/* ---------- 颗粒 / 噪点 / 粒子 ---------- */
.grain{
  position:fixed;inset:0;z-index:2;pointer-events:none;opacity:.17;mix-blend-mode:soft-light;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}
.particles{position:fixed;inset:0;z-index:3;pointer-events:none;opacity:.55}

/* ---------- 开屏加载 ---------- */
.boot{
  position:fixed;inset:0;z-index:900;background:var(--ink);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  transition:opacity .8s var(--ease),visibility .8s;
}
.boot.is-done{opacity:0;visibility:hidden}
.boot__ring{
  width:96px;height:96px;border:1px solid rgba(200,162,74,.55);border-radius:50%;
  display:grid;place-items:center;position:relative;margin-bottom:10px;
  animation:bootPulse 2.4s ease-in-out infinite;
}
.boot__ring::before{content:"";position:absolute;inset:9px;border:1px solid rgba(200,162,74,.22);border-radius:50%}
.boot__ring::after{content:"";position:absolute;top:-3px;left:50%;width:6px;height:6px;margin-left:-3px;background:var(--gold);border-radius:50%}
.boot__mark{font-family:var(--num);font-size:44px;color:var(--paper);line-height:1}
@keyframes bootPulse{50%{box-shadow:0 0 0 12px rgba(200,162,74,.06)}}
.boot__name{margin:0;font-size:15px;letter-spacing:.3em;color:var(--paper)}
.boot__word{margin:0;font-size:10.5px;letter-spacing:.36em;color:rgba(247,243,236,.45)}
.boot__bar{width:180px;height:2px;background:rgba(247,243,236,.13);overflow:hidden;margin-top:12px}
.boot__bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brick),var(--gold));transition:width .18s linear}
.boot__pct{margin:0;font-family:var(--num);font-size:22px;color:var(--gold);letter-spacing:.08em}
.boot__tip{margin:2px 0 0;font-size:11px;letter-spacing:.2em;color:rgba(247,243,236,.3)}

/* ---------- 顶部胶囊 ---------- */
.capsule{
  position:fixed;left:12px;right:12px;top:10px;height:54px;z-index:80;
  display:flex;align-items:center;gap:10px;padding:0 10px 0 11px;
  border-radius:18px;background:rgba(20,18,16,.62);
  -webkit-backdrop-filter:blur(16px) saturate(1.3);backdrop-filter:blur(16px) saturate(1.3);
  border:1px solid rgba(247,243,236,.13);
  box-shadow:0 10px 34px rgba(0,0,0,.22);
}
.capsule__brand{display:flex;align-items:center;gap:9px;min-width:0;flex:0 0 auto}
.seal{
  width:30px;height:30px;flex:0 0 30px;display:grid;place-items:center;
  background:var(--brick);color:#fff;border-radius:4px;font-family:var(--num);font-size:16px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18);
}
.capsule__name{color:var(--paper);font-size:12.5px;font-weight:600;white-space:nowrap;display:flex;align-items:baseline;gap:7px}
.capsule__name em{font-style:normal;font-weight:400;font-size:10px;letter-spacing:.16em;color:rgba(247,243,236,.5)}
.capsule__meta{
  display:flex;align-items:center;gap:9px;min-width:0;margin-left:auto;
  font-size:10.5px;letter-spacing:.14em;color:rgba(247,243,236,.62);white-space:nowrap;
}
.capsule__meta b{font-weight:600;color:var(--gold);font-size:12px}
.capsule__meta i{width:1px;height:12px;background:rgba(247,243,236,.22)}
.capsule__acts{display:flex;gap:6px;flex:0 0 auto}
.cbtn{
  height:34px;min-width:48px;padding:0 12px;border:1px solid rgba(247,243,236,.2);
  border-radius:11px;background:rgba(247,243,236,.07);color:var(--paper);
  font-size:11.5px;letter-spacing:.08em;display:inline-flex;align-items:center;justify-content:center;gap:6px;
  transition:background .25s,border-color .25s,transform .25s var(--bounce);
}
.cbtn:hover{background:rgba(200,162,74,.2);border-color:rgba(200,162,74,.5)}
.cbtn:active{transform:scale(.94)}
.cbtn--icon{min-width:34px;width:34px;padding:0}
.cbtn[aria-pressed="true"]{background:rgba(200,162,74,.24);border-color:rgba(200,162,74,.6)}
.cbtn[aria-pressed="true"] .snd__wave{opacity:1}
.snd__wave{opacity:.32}
@media (max-width:520px){.capsule__meta{display:none}}

/* ---------- 章节目录条 ---------- */
.dir{
  position:fixed;left:12px;right:12px;top:70px;height:48px;z-index:79;
  display:flex;align-items:center;gap:8px;padding:0 8px 0 12px;
  border-radius:14px;background:rgba(20,18,16,.5);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(247,243,236,.1);
  transition:transform .42s var(--bounce),opacity .32s;
}
.dir.is-hidden{transform:translateY(-72px);opacity:0;pointer-events:none}
.dir__in{flex:1;display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;height:100%}
.dir__in::-webkit-scrollbar{display:none}
.dir__tab{
  flex:0 0 auto;height:34px;padding:0 13px;border:0;border-radius:9px;background:transparent;
  color:rgba(247,243,236,.66);font-size:12px;letter-spacing:.06em;white-space:nowrap;
  display:inline-flex;align-items:center;gap:7px;transition:.25s;
}
.dir__tab b{font-weight:600;font-size:13px}
.dir__tab small{font-family:var(--num);font-size:10.5px;opacity:.6}
.dir__tab:hover{color:var(--paper);background:rgba(247,243,236,.08)}
.dir__tab.is-on{color:var(--ink);background:var(--gold);font-weight:600}
.dir__tab.is-on small{opacity:.72}
.dir__collapse{
  flex:0 0 auto;height:32px;padding:0 11px;border:1px solid rgba(247,243,236,.18);
  border-radius:9px;background:transparent;color:rgba(247,243,236,.7);font-size:11px;
}
.dir__collapse:hover{border-color:var(--gold);color:var(--gold)}

/* ---------- 半露标签 ---------- */
.peek{
  position:fixed;top:64px;width:66px;height:30px;z-index:78;
  border:1px solid rgba(200,162,74,.5);border-bottom:0;
  border-radius:10px 10px 0 0;background:rgba(166,64,47,.92);
  color:#fff;font-size:11px;letter-spacing:.1em;
  display:none;align-items:center;justify-content:center;gap:4px;
  transform:translateY(13px);box-shadow:0 -4px 16px rgba(0,0,0,.25);
  touch-action:none;user-select:none;
}
.peek.is-on{display:flex}
.peek i{font-style:normal;font-size:13px;line-height:1}
.peek.is-dragging{cursor:grabbing;transition:none}

/* ---------- 右侧进度轨 ---------- */
.rail{position:fixed;right:11px;top:50%;transform:translateY(-50%);z-index:60;width:5px;height:min(46vh,340px)}
.rail__track{position:absolute;inset:0;border-radius:4px;background:rgba(247,243,236,.13);overflow:hidden}
.rail__track i{display:block;width:100%;height:100%;background:linear-gradient(180deg,var(--gold),var(--brick));transform-origin:top;transform:scaleY(0);transition:transform .5s var(--ease)}
.rail__thumb{position:absolute;left:-3px;width:11px;height:11px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 3px rgba(200,162,74,.2);top:0;transition:top .5s var(--ease)}
@media (max-width:700px){.rail{height:32vh;right:6px;width:3px}.rail__thumb{width:8px;height:8px;left:-2.5px}}

/* ---------- 光晕 / 闪白 ---------- */
.sweep{
  position:fixed;inset:0;z-index:70;pointer-events:none;opacity:0;
  background:linear-gradient(105deg,transparent 30%,rgba(255,240,200,.09) 44%,rgba(255,246,222,.34) 50%,rgba(255,240,200,.09) 56%,transparent 70%);
  transform:translateX(-120%);
}
.sweep.is-run{animation:sweepGo .78s var(--ease)}
@keyframes sweepGo{0%{opacity:0;transform:translateX(-120%)}18%{opacity:1}100%{opacity:0;transform:translateX(120%)}}
.flash{position:fixed;inset:0;z-index:69;pointer-events:none;background:var(--paper);opacity:0}
.flash.is-run{animation:flashGo .34s ease-out}
@keyframes flashGo{0%{opacity:.16}100%{opacity:0}}

/* ---------- 画册画布 ---------- */
.deck{position:fixed;inset:0;z-index:4;overflow:hidden;touch-action:pan-y}
.page{
  position:absolute;inset:0;width:100%;height:100%;overflow:hidden;
  background:var(--ink);will-change:transform;contain:layout paint;
  transform:translate3d(100%,0,0);transition:transform .52s var(--bounce);
}
.deck.is-jump .page,.deck.is-drag .page{transition:none}
.sr-live{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.btn:disabled{opacity:.42;cursor:default;transform:none !important}
.page__text{display:flex;flex-direction:column;gap:12px}
.page.is-near{visibility:visible}
.page.is-off{visibility:hidden}
.page__bg{position:absolute;inset:0;overflow:hidden;background:var(--ink-2)}
.page__bg img{
  width:100%;height:100%;object-fit:cover;object-position:center;
  animation:ken 26s ease-in-out infinite alternate;
}
@keyframes ken{from{transform:scale(1.02) translate3d(0,0,0)}to{transform:scale(1.14) translate3d(-1.2%,-1%,0)}}
.page__scrim{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,10,9,.52) 0%,rgba(12,10,9,.30) 20%,rgba(12,10,9,.55) 48%,rgba(12,10,9,.86) 78%,rgba(10,9,8,.96) 100%);
}
.page__in{
  position:relative;height:100%;max-width:1120px;margin:0 auto;
  padding:var(--top) var(--pad) var(--bottom);
  display:flex;flex-direction:column;justify-content:flex-end;gap:14px;
}
.page__col{min-width:0}
.kicker{
  display:flex;align-items:center;gap:12px;margin:0 0 2px;
  font-size:11.5px;letter-spacing:.24em;color:var(--gold);text-transform:uppercase;
}
.kicker span{
  font-family:var(--num);font-size:11px;letter-spacing:.1em;padding:3px 9px;
  border:1px solid currentColor;border-radius:20px;opacity:.9;
}
.kicker::after{content:"";height:1px;width:44px;background:currentColor;opacity:.5}
.title{
  margin:0;font-size:clamp(32px,5.1vw,46px);line-height:1.24;font-weight:700;
  letter-spacing:-.015em;text-wrap:balance;
}
.rule{width:70px;height:2px;background:var(--accent);margin:2px 0 4px;position:relative;overflow:hidden}
.rule::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,#fff,transparent);transform:translateX(-100%);animation:shine 3.4s linear infinite}
@keyframes shine{to{transform:translateX(100%)}}
.paras{display:flex;flex-direction:column;gap:9px;max-width:62ch}
.paras p{margin:0;font-size:clamp(15px,1.35vw,17px);line-height:1.78;color:rgba(247,243,236,.9)}
.stats{
  list-style:none;margin:2px 0 0;padding:0;display:grid;
  grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:1px;
  background:var(--line-l);border:1px solid var(--line-l);border-radius:12px;overflow:hidden;
}
.stats li{padding:10px 13px;background:rgba(20,18,16,.36);display:flex;flex-direction:column;gap:1px}
.stats b{font-family:var(--num);font-size:clamp(22px,2.3vw,29px);font-weight:400;color:var(--gold);line-height:1.15;letter-spacing:-.01em;white-space:nowrap}
.stats span{font-size:11px;color:rgba(247,243,236,.6);letter-spacing:.08em}
.list{list-style:none;margin:2px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(168px,1fr));gap:7px}
.list li{
  display:flex;align-items:baseline;gap:10px;padding:7px 11px;border-left:2px solid var(--accent);
  background:rgba(247,243,236,.07);border-radius:0 8px 8px 0;font-size:13.5px;
}
.list b{flex:0 0 auto;font-weight:600;color:var(--gold);font-size:13px}
.list span{color:rgba(247,243,236,.82)}
.src{margin:0;font-size:10.5px;letter-spacing:.06em;color:rgba(247,243,236,.42)}
.src a{border-bottom:1px dotted currentColor}

/* 每页三枚跳转键 */
.rel{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-top:4px}
.btn{
  position:relative;overflow:hidden;min-height:52px;padding:10px 8px;
  border:1px solid rgba(247,243,236,.3);border-radius:14px;
  background:rgba(247,243,236,.1);color:var(--paper);
  font-size:13px;font-weight:600;letter-spacing:.04em;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  transition:transform .3s var(--bounce),background .25s,border-color .25s,box-shadow .25s;
}
.btn:hover{transform:translateY(-3px);background:rgba(200,162,74,.24);border-color:var(--gold);box-shadow:0 8px 22px rgba(0,0,0,.25)}
.btn:active{transform:translateY(0) scale(.97)}
.btn--main{background:var(--brick);border-color:var(--brick)}
.btn--main:hover{background:#bd4b37}
.btn--ghost{background:transparent}
.ripple{position:absolute;border-radius:50%;pointer-events:none;background:rgba(255,255,255,.42);transform:scale(0);animation:rip .62s ease-out forwards}
@keyframes rip{to{transform:scale(2.6);opacity:0}}

/* 前景图 */
.page__fig{position:relative;margin:0;border-radius:14px;overflow:hidden;box-shadow:0 18px 44px rgba(0,0,0,.4)}
.page__fig img{width:100%;height:100%;object-fit:cover;min-height:200px}
.page__fig figcaption{position:absolute;left:0;right:0;bottom:0;padding:8px 12px;font-size:10.5px;letter-spacing:.06em;color:rgba(255,255,255,.86);background:linear-gradient(0deg,rgba(10,9,8,.8),transparent)}
.lens{
  position:absolute;width:130px;height:130px;border-radius:50%;border:2px solid var(--gold);
  box-shadow:0 6px 24px rgba(0,0,0,.5);pointer-events:none;display:none;z-index:5;
  background-repeat:no-repeat;background-size:220% auto;
}

/* ---------- 四种版式 ---------- */
/* A：整屏背景 + 文字压底 */
.layout-a .page__in{max-width:1120px}
/* B：背景 + 前景大图（两图不同） */
.layout-b .page__in{
  display:grid;grid-template-columns:1fr;grid-template-rows:auto 1fr;align-content:end;
}
.layout-b .page__fig{height:min(30vh,260px)}
/* C：顶部大图 + 文字流（纸底） */
.layout-c{background:var(--paper)}
.layout-c .page__bg{display:none}
.layout-c .page__in{justify-content:flex-start;gap:12px;padding-top:var(--top)}
.layout-c .page__fig{height:min(28vh,250px);order:-1;border-radius:12px}
.layout-c .title,.layout-c .paras p,.layout-c .list span{color:var(--ink)}
.layout-c .paras p{color:rgba(20,18,16,.82)}
.layout-c .kicker{color:var(--brick)}
.layout-c .stats{background:var(--line);border-color:var(--line)}
.layout-c .stats li{background:rgba(255,255,255,.6)}
.layout-c .stats b{color:var(--brick)}
.layout-c .stats span{color:var(--muted)}
.layout-c .list li{background:rgba(20,18,16,.045)}
.layout-c .list span{color:rgba(20,18,16,.8)}
.layout-c .list b{color:var(--brick)}
.layout-c .src{color:var(--muted)}
.layout-c .btn{background:rgba(20,18,16,.06);border-color:rgba(20,18,16,.24);color:var(--ink)}
.layout-c .btn:hover{background:rgba(166,64,47,.14);border-color:var(--brick)}
.layout-c .btn--main{background:var(--brick);border-color:var(--brick);color:#fff}
/* D：纯文字页（背景完全淡化） */
.layout-d{background:var(--paper);color:var(--ink)}
.layout-d .page__bg img{opacity:.09;filter:grayscale(.55) contrast(.9);animation:none}
.layout-d .page__scrim{background:linear-gradient(180deg,rgba(247,243,236,.55),rgba(247,243,236,.86))}
.layout-d .title{color:var(--ink);font-size:clamp(36px,5.6vw,52px)}
.layout-d .paras p{color:rgba(20,18,16,.78)}
.layout-d .kicker{color:var(--brick)}
.layout-d .stats{background:var(--line);border-color:var(--line)}
.layout-d .stats li{background:rgba(255,255,255,.55)}
.layout-d .stats b{color:var(--brick)}
.layout-d .stats span{color:var(--muted)}
.layout-d .list li{background:rgba(20,18,16,.045)}
.layout-d .list span{color:rgba(20,18,16,.8)}
.layout-d .list b{color:var(--brick)}
.layout-d .src{color:var(--muted)}
.layout-d .btn{background:rgba(20,18,16,.05);border-color:rgba(20,18,16,.22);color:var(--ink)}
.layout-d .btn:hover{background:rgba(166,64,47,.12);border-color:var(--brick)}
.layout-d .btn--main{background:var(--brick);border-color:var(--brick);color:#fff}
.layout-d .paras::before{
  content:"“";display:block;font-family:var(--num);font-size:78px;line-height:.6;color:rgba(166,64,47,.24);height:38px;
}

/* 浅色主题：底图淡化，文字压深 */
.theme-light .page__bg img{opacity:.14;filter:saturate(.6)}
.theme-light .page__scrim{background:linear-gradient(180deg,rgba(247,243,236,.62),rgba(247,243,236,.9))}
.theme-light .title{color:var(--ink)}
.theme-light .paras p{color:rgba(20,18,16,.82)}
.theme-light .kicker{color:var(--brick)}
.theme-light .stats{background:var(--line);border-color:var(--line)}
.theme-light .stats li{background:rgba(255,255,255,.58)}
.theme-light .stats b{color:var(--brick)}
.theme-light .stats span{color:var(--muted)}
.theme-light .list li{background:rgba(20,18,16,.05)}
.theme-light .list span{color:rgba(20,18,16,.8)}
.theme-light .list b{color:var(--brick)}
.theme-light .src{color:var(--muted)}
.theme-light .btn{background:rgba(20,18,16,.05);border-color:rgba(20,18,16,.22);color:var(--ink)}
.theme-light .btn:hover{background:rgba(166,64,47,.12);border-color:var(--brick)}
.theme-light .btn--main{background:var(--brick);border-color:var(--brick);color:#fff}
.theme-light .rel .btn--ghost{-webkit-backdrop-filter:none;backdrop-filter:none}
.theme-ice{--accent:var(--ice)}
.theme-wetland{--accent:#5e8d63}
.theme-meat{--accent:#c0663c}
.theme-night{--accent:#8d86c9}

/* ---------- 封面 / 章节页 / 目录页 / 结尾页 ---------- */
.page--cover .page__in{justify-content:center;align-items:flex-start;gap:18px}
.page--cover .title{
  font-size:clamp(48px,9vw,86px);line-height:1.08;letter-spacing:.02em;
  background:linear-gradient(100deg,#f7f3ec 20%,#e2c880 42%,#fff6d8 50%,#e2c880 58%,#f7f3ec 80%);
  background-size:220% 100%;-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;animation:goldFlow 7s linear infinite;
}
@keyframes goldFlow{to{background-position:220% 0}}
.page--cover .sub{font-size:clamp(16px,2vw,21px);letter-spacing:.16em;color:rgba(247,243,236,.84);margin:0}
.page--cover .stats{max-width:640px}
.page--cover .rel,.page--chapter .rel,.page--end .rel{width:min(100%,760px)}
.page--cover .cover__mark{
  font-family:var(--num);font-size:12px;letter-spacing:.4em;color:var(--gold);
  border-top:1px solid rgba(200,162,74,.5);border-bottom:1px solid rgba(200,162,74,.5);padding:8px 0;
}
.page--chapter .page__in{justify-content:center;align-items:center;text-align:center;gap:16px}
.page--chapter .title{font-size:clamp(76px,17vw,180px);font-family:var(--num);font-weight:400;line-height:1;color:var(--paper)}
.page--chapter .chapter__s{font-size:14px;letter-spacing:.3em;color:var(--gold)}
.page--chapter .chapter__line{width:120px;height:1px;background:var(--gold);opacity:.7}
.page--chapter .chapter__n{font-family:var(--num);font-size:13px;letter-spacing:.2em;color:rgba(247,243,236,.55)}
.page--index .page__in{justify-content:flex-start;padding-top:var(--top);gap:12px}
.index__grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:7px;
  overflow-y:auto;max-height:calc(100vh - var(--top) - 170px);padding-right:4px;scrollbar-width:thin;
}
.index__grid button{
  text-align:left;padding:9px 11px;border:1px solid rgba(247,243,236,.18);border-radius:9px;
  background:rgba(247,243,236,.07);color:var(--paper);font-size:12px;line-height:1.5;
  transition:.22s;display:flex;gap:8px;align-items:baseline;
}
.index__grid button:hover{background:rgba(200,162,74,.22);border-color:var(--gold);transform:translateY(-2px)}
.index__grid em{font-family:var(--num);font-style:normal;font-size:10.5px;color:var(--gold);flex:0 0 auto}
.page--end .page__in{justify-content:center;gap:18px}
.page--end .title{font-size:clamp(42px,7vw,68px)}
.page--end .end__card{border:1px solid rgba(247,243,236,.25);border-radius:14px;padding:18px 22px;background:rgba(20,18,16,.4);max-width:560px}
.page--end .end__card p{margin:0 0 6px;font-size:14px}
.page--end .end__card p:last-child{margin:0}
.page--end .end__card b{color:var(--gold);font-weight:600}

/* ---------- 四扇门 ---------- */
.doors{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:6px}
.door{
  min-height:96px;padding:14px;border:1px solid rgba(247,243,236,.28);border-radius:14px;
  background:rgba(20,18,16,.42);text-align:left;display:flex;flex-direction:column;justify-content:center;gap:4px;
  transition:transform .34s var(--bounce),background .25s,border-color .25s;
}
.door:hover{transform:translateY(-5px) scale(1.015);background:rgba(166,64,47,.35);border-color:var(--gold)}
.door b{font-size:19px;letter-spacing:.08em}
.door span{font-size:11.5px;color:rgba(247,243,236,.64);line-height:1.5}
.door i{font-style:normal;font-family:var(--num);font-size:11px;color:var(--gold);letter-spacing:.2em}

/* ---------- 互动工具 ---------- */
.tool{
  border:1px solid rgba(247,243,236,.22);border-radius:16px;padding:16px;
  background:rgba(20,18,16,.42);display:flex;flex-direction:column;gap:12px;margin-top:4px;
}
.tool__row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.tool label{font-size:12px;letter-spacing:.1em;color:var(--gold)}
.tool input[type=number],.tool input[type=text],.tool textarea,.tool select{
  flex:1;min-width:120px;padding:11px 13px;border-radius:10px;border:1px solid rgba(247,243,236,.28);
  background:rgba(247,243,236,.08);color:var(--paper);font-family:inherit;font-size:15px;
}
.tool input::placeholder,.tool textarea::placeholder{color:rgba(247,243,236,.4)}
.tool textarea{resize:vertical;min-height:64px}
.tool__hint{font-size:11px;color:rgba(247,243,236,.5);margin:0}
.tool__out{display:flex;flex-direction:column;gap:6px;max-height:172px;overflow-y:auto;scrollbar-width:thin}
.tool__out:empty::after{content:"输入后点击查询，结果会出现在这里。";font-size:12px;color:rgba(247,243,236,.45)}
.hit{display:flex;justify-content:space-between;gap:10px;padding:8px 11px;border-radius:9px;background:rgba(200,162,74,.14);font-size:13px}
.hit b{color:var(--gold);font-weight:600}
.hit span{color:rgba(247,243,236,.7);font-size:11.5px}
.postcard__choices{display:flex;gap:8px;flex-wrap:wrap}
.postcard__choices img{width:74px;height:52px;object-fit:cover;border-radius:7px;border:2px solid transparent;cursor:pointer;transition:.2s}
.postcard__choices img.is-on{border-color:var(--gold);transform:scale(1.06)}
.postcard__preview{width:100%;max-width:420px;border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,.4)}
.map{
  position:relative;height:min(42vh,330px);border:1px solid rgba(247,243,236,.2);border-radius:14px;
  background:rgba(20,18,16,.5) linear-gradient(rgba(200,162,74,.07) 1px,transparent 1px) 0 0/38px 38px,
             linear-gradient(90deg,rgba(200,162,74,.07) 1px,transparent 1px) 0 0/38px 38px;
  overflow:hidden;
}
.map__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.2;filter:grayscale(.6)}
.map__dot{
  position:absolute;width:26px;height:26px;border-radius:50%;border:2px solid var(--gold);
  background:rgba(166,64,47,.85);color:#fff;font-size:11px;font-weight:700;
  display:grid;place-items:center;transform:translate(-50%,-50%);
  transition:transform .3s var(--bounce),box-shadow .3s;
}
.map__dot:hover,.map__dot.is-on{transform:translate(-50%,-50%) scale(1.35);box-shadow:0 0 0 8px rgba(200,162,74,.2)}
.map__info{
  position:absolute;left:10px;right:10px;bottom:10px;padding:10px 13px;border-radius:10px;
  background:rgba(12,10,9,.88);border:1px solid rgba(200,162,74,.35);font-size:12.5px;
}
.map__info b{color:var(--gold);margin-right:8px}
.map__label{position:absolute;top:10px;left:12px;font-size:10.5px;letter-spacing:.2em;color:rgba(247,243,236,.55)}

/* ---------- 页脚字幕 / 悬浮按钮 ---------- */
.ticker{
  position:fixed;left:0;right:0;bottom:0;height:28px;z-index:62;overflow:hidden;
  background:rgba(12,10,9,.78);border-top:1px solid rgba(247,243,236,.1);
  display:flex;align-items:center;
}
.ticker__in{white-space:nowrap;font-size:11px;letter-spacing:.16em;color:rgba(247,243,236,.6);animation:marquee 32s linear infinite;padding-left:100%}
@keyframes marquee{to{transform:translateX(-100%)}}
.fab{
  position:fixed;right:14px;bottom:42px;z-index:64;height:46px;padding:0 18px;border:0;border-radius:24px;
  background:var(--brick);color:#fff;font-size:13px;font-weight:600;letter-spacing:.06em;
  box-shadow:0 10px 26px rgba(0,0,0,.35);display:flex;align-items:center;gap:8px;
  transition:transform .3s var(--bounce);
}
.fab:hover{transform:translateY(-3px)}
.fab i{font-style:normal;font-size:16px}
@media (min-width:900px){.fab{display:none}}

/* ---------- 面板 ---------- */
.sheet{position:fixed;inset:0;z-index:200;visibility:hidden;opacity:0;transition:opacity .3s,visibility .3s}
.sheet.is-on{visibility:visible;opacity:1}
.sheet__mask{position:absolute;inset:0;background:rgba(8,7,6,.72);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.sheet__box{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-46%) scale(.97);
  width:min(760px,calc(100vw - 28px));max-height:min(78vh,720px);
  background:var(--paper-2);color:var(--ink);border-radius:18px;overflow:hidden;
  display:flex;flex-direction:column;box-shadow:0 30px 80px rgba(0,0,0,.55);
  transition:transform .4s var(--bounce);
}
.sheet.is-on .sheet__box{transform:translate(-50%,-50%) scale(1)}
.sheet__head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line)}
.sheet__head b{font-size:15px;letter-spacing:.08em}
.sheet__x{width:32px;height:32px;border:0;background:transparent;font-size:24px;line-height:1;color:var(--muted);border-radius:8px}
.sheet__x:hover{background:rgba(20,18,16,.08);color:var(--ink)}
.sheet__body{overflow-y:auto;padding:16px 18px 22px;scrollbar-width:thin}
.sheet__q{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;background:#fff;font:inherit;font-size:14px;margin-bottom:12px}
.sheet__grp{margin-bottom:16px}
.sheet__grp h3{margin:0 0 8px;font-size:13px;letter-spacing:.16em;color:var(--brick);display:flex;align-items:center;gap:10px}
.sheet__grp h3::after{content:"";flex:1;height:1px;background:var(--line)}
.sheet__links{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:6px}
.sheet__links button{
  text-align:left;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;
  font:inherit;font-size:12px;display:flex;gap:7px;align-items:baseline;transition:.2s;
}
.sheet__links button:hover{border-color:var(--brick);background:#fff8f0;transform:translateY(-2px)}
.sheet__links em{font-family:var(--num);font-style:normal;color:var(--brick);font-size:10.5px;flex:0 0 auto}
.sheet__help{font-size:14px;line-height:1.9}
.sheet__help h4{margin:16px 0 6px;font-size:13px;letter-spacing:.12em;color:var(--brick)}
.sheet__help ul{margin:0;padding-left:20px}
.sheet__help kbd{font-family:var(--num);padding:1px 6px;border:1px solid var(--line);border-radius:5px;background:#fff;font-size:12px}
.toast{
  position:fixed;left:50%;bottom:64px;transform:translate(-50%,14px);z-index:300;
  padding:10px 18px;border-radius:22px;background:rgba(20,18,16,.92);color:var(--paper);
  font-size:12.5px;letter-spacing:.06em;opacity:0;pointer-events:none;transition:.3s;
  border:1px solid rgba(200,162,74,.4);
}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

/* ---------- 七种入场动画 ---------- */
.page.is-active .anim{animation-duration:.72s;animation-fill-mode:both;animation-timing-function:var(--ease);animation-delay:calc(var(--d,0) * 58ms)}
.fx-1 .anim{animation-name:fxSlide}
.fx-2 .anim{animation-name:fxFade}
.fx-3 .anim{animation-name:fxZoom}
.fx-4 .anim{animation-name:fxRise}
.fx-5 .anim{animation-name:fxFlip}
.fx-6 .anim{animation-name:fxWipe}
.fx-7 .anim{animation-name:fxTilt}
@keyframes fxSlide{from{opacity:0;transform:translateX(-46px)}to{opacity:1;transform:none}}
@keyframes fxFade{from{opacity:0}to{opacity:1}}
@keyframes fxZoom{from{opacity:0;transform:scale(.9)}to{opacity:1;transform:none}}
@keyframes fxRise{from{opacity:0;transform:translateY(44px)}to{opacity:1;transform:none}}
@keyframes fxFlip{from{opacity:0;transform:perspective(800px) rotateY(-28deg) translateX(-20px)}to{opacity:1;transform:none}}
@keyframes fxWipe{from{opacity:0;clip-path:inset(0 100% 0 0)}to{opacity:1;clip-path:inset(0 0 0 0)}}
@keyframes fxTilt{from{opacity:0;transform:rotate(-2.2deg) translateY(24px)}to{opacity:1;transform:none}}

/* ---------- 响应式 ---------- */
@media (min-width:720px){
  :root{--pad:34px;--top:158px;--bottom:110px}
  .page__in{gap:16px}
  .title{font-size:clamp(36px,4.6vw,50px)}
  .rel{grid-template-columns:1fr 1fr 1fr;max-width:760px}
  .doors{grid-template-columns:repeat(4,1fr)}
  .door{min-height:132px}
  .layout-b .page__in{
    grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);grid-template-rows:1fr;
    align-items:center;column-gap:44px;justify-content:unset;
  }
  .layout-b .page__text{align-self:center}
  .layout-b .page__fig{height:min(62vh,560px);align-self:center}
  .layout-c .page__in{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);grid-template-rows:1fr;column-gap:46px;align-items:center;justify-content:unset;padding-top:var(--top)}
  .layout-c .page__fig{order:0;height:min(64vh,580px)}
  .layout-c .page__text{display:flex;flex-direction:column;gap:12px}
  .index__grid{grid-template-columns:repeat(auto-fill,minmax(170px,1fr))}
}
@media (max-width:719px){
  :root{--top:142px;--bottom:100px;--pad:18px}
  .capsule{height:50px;border-radius:16px;left:9px;right:9px;top:8px}
  .dir{left:9px;right:9px;top:64px;height:44px}
  .dir__in{gap:4px}
  .dir__tab{padding:0 9px;font-size:11.5px}
  .dir__tab small{display:none}
  .dir__collapse{padding:0 8px;font-size:10px;height:30px}
  .peek{top:58px}
  .page__in{gap:11px;padding-bottom:96px}
  .title{font-size:clamp(30px,8.4vw,38px)}
  .paras p{font-size:15px;line-height:1.72}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stats b{font-size:22px}
  .list{grid-template-columns:1fr 1fr;gap:5px}
  .list li{font-size:12px;padding:6px 9px}
  .rel{gap:6px}
  .btn{min-height:50px;font-size:12px;border-radius:12px}
  .layout-c .page__fig,.layout-b .page__fig{height:24vh;min-height:130px}
  .layout-d .paras::before{font-size:58px;height:28px}
  .doors{gap:8px}
  .door{min-height:82px;padding:11px}
  .door b{font-size:16px}
  .map{height:34vh}
  .tool{padding:12px}
}
@media (max-width:380px){
  .capsule__name em{display:none}
  .cbtn{padding:0 9px;min-width:42px}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition:none !important}
  .page__bg img{animation:none}
  .ticker__in{animation:none;padding-left:12px;white-space:normal}
}

/* ---------- 版式修正：纸底页不留暗色蒙版、B 版式移动端重排 ---------- */
.layout-c .page__scrim,.layout-c.theme-light .page__scrim{display:none}
.layout-c .page__bg{display:none}
.fab{display:none}

@media (max-width:719px){
  :root{--top:132px;--bottom:96px}
  .page__in{gap:9px}
  .title{font-size:30px;line-height:1.22}
  .paras p{font-size:14.5px;line-height:1.65}
  .stats li{padding:7px 9px}
  .stats b{font-size:20px}
  .list li{padding:5px 8px;font-size:11.5px}
  .src{font-size:9.5px}
  .btn{min-height:46px;font-size:12px}
  .rel{gap:5px}
  .page__text{gap:9px}
  .layout-b .page__in{display:flex;flex-direction:column;justify-content:flex-end;align-content:stretch}
  .layout-b .page__fig{order:-1;height:19vh;min-height:110px;align-self:stretch}
  .layout-c .page__in{gap:9px;padding-top:132px}
  .layout-c .page__fig,.layout-b .page__fig{height:19vh;min-height:110px}
  .layout-c .page__fig{order:-1}
  .layout-d .paras::before{font-size:52px;height:26px}
  .tool{padding:10px;gap:8px}
  .tool input[type=number],.tool input[type=text],.tool textarea,.tool select{padding:8px 10px;font-size:14px;min-width:110px}
  .tool__hint{font-size:10px;line-height:1.5}
  .tool__out{max-height:120px}
  .postcard__choices img{width:62px;height:44px}
  .postcard__preview{width:auto;max-width:100%;height:132px}
  .map{height:30vh}
  .index__grid{max-height:calc(100vh - var(--top) - 150px)}
}

/* =========================================================
   常驻返航 / 翻屏 / 离场幕布  ·  book v8
   ========================================================= */
.exitbar{
  position:fixed;left:14px;bottom:42px;z-index:66;
  display:flex;align-items:center;gap:6px;padding:5px 6px;
  border:1px solid rgba(247,243,236,.16);border-radius:16px;
  background:rgba(20,18,16,.72);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);backdrop-filter:blur(14px) saturate(1.2);
  box-shadow:0 10px 30px rgba(0,0,0,.32);
}
.exitbar__tag{
  padding:0 8px 0 6px;font-size:10px;letter-spacing:.16em;
  color:rgba(247,243,236,.52);white-space:nowrap;border-right:1px solid rgba(247,243,236,.16);
}
.exitbar__btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:5px;
  min-height:38px;min-width:44px;padding:0 11px;border-radius:11px;
  border:1px solid rgba(247,243,236,.2);background:rgba(247,243,236,.07);color:var(--paper);
  font-size:11.5px;letter-spacing:.06em;white-space:nowrap;
  transition:background .25s,border-color .25s,transform .3s var(--bounce);
}
.exitbar__btn:hover{background:rgba(200,162,74,.22);border-color:rgba(200,162,74,.6)}
.exitbar__btn:active{transform:scale(.93)}
.exitbar__btn--main{background:var(--brick);border-color:rgba(255,255,255,.22);font-weight:600}
.exitbar__btn--main:hover{background:#bd4a37}
.exitbar__ico{font-size:15px;line-height:1}
.exitbar__t--short{display:none}

.pager{
  position:fixed;right:14px;bottom:42px;z-index:66;
  display:flex;align-items:center;gap:6px;padding:5px 6px;
  border:1px solid rgba(247,243,236,.16);border-radius:16px;
  background:rgba(20,18,16,.72);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);backdrop-filter:blur(14px) saturate(1.2);
  box-shadow:0 10px 30px rgba(0,0,0,.32);
}
.pager__btn{
  position:relative;min-width:38px;min-height:38px;padding:0 10px;border-radius:11px;
  border:1px solid rgba(247,243,236,.2);background:rgba(247,243,236,.07);color:var(--paper);
  font-size:15px;line-height:1;
  transition:background .25s,border-color .25s,transform .3s var(--bounce);
}
.pager__btn:hover{background:rgba(200,162,74,.22);border-color:rgba(200,162,74,.6)}
.pager__btn:active{transform:scale(.92)}
.pager__btn--main{background:var(--brick);border-color:rgba(255,255,255,.22)}
.pager__btn--main:hover{background:#bd4a37}
.pager__btn.is-edge{opacity:.4}
.pager__num{
  min-width:58px;text-align:center;font-family:var(--num);font-size:11px;
  letter-spacing:.08em;color:rgba(247,243,236,.72);white-space:nowrap;
}

/* 浏览器拦下自动播放时的轻提示 */
.capsule.is-ask #soundBtn{position:relative;animation:sndAsk 1.25s ease-in-out infinite}
.capsule.is-ask #soundBtn::after{
  content:"点一下开启音乐";position:absolute;top:40px;right:0;z-index:2;
  padding:6px 10px;border-radius:8px;white-space:nowrap;font-size:11px;
  background:rgba(20,18,16,.92);border:1px solid rgba(200,162,74,.5);color:var(--gold);
  box-shadow:0 8px 20px rgba(0,0,0,.35);
}
@keyframes sndAsk{0%,100%{box-shadow:0 0 0 0 rgba(200,162,74,.45)}50%{box-shadow:0 0 0 7px rgba(200,162,74,0)}}

/* 离场幕布 */
.exit-veil{
  position:fixed;inset:0;z-index:880;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:12px;text-align:center;
  background:radial-gradient(circle at 50% 42%,#241f1a 0%,var(--ink) 72%);
  color:var(--paper);transform:translateY(101%);visibility:hidden;pointer-events:none;
  /* 站点 reduced-motion 的 * 规则会给出 transition-duration，默认 transition-property:all
     会让 visibility 卡在过渡起点；幕布单独禁掉过渡，保证任何环境下都能立即覆盖 */
  transition:none !important;
}
.exit-veil.is-in{visibility:visible !important;animation:veilIn .5s cubic-bezier(.2,.85,.25,1) forwards}
@keyframes veilIn{to{transform:translateY(0)}}
.exit-veil__seal{width:46px;height:46px;display:grid;place-items:center;border-radius:5px;
  background:var(--brick);font-family:var(--num);font-size:24px;color:#fff;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.2)}
.exit-veil__to{font-size:clamp(17px,2.6vw,24px);letter-spacing:.18em;font-weight:500}
.exit-veil__en{font-size:10px;letter-spacing:.34em;color:rgba(247,243,236,.42)}
.exit-veil__line{display:block;width:120px;height:1px;margin-top:8px;background:rgba(247,243,236,.18);position:relative;overflow:hidden}
.exit-veil__line::after{content:"";position:absolute;inset:0;background:var(--gold);animation:veilLine .5s linear forwards}
@keyframes veilLine{from{transform:translateX(-100%)}to{transform:translateX(0)}}

@media (max-width:520px){
  .exitbar__tag{display:none}
  .exitbar__t--long{display:none}
  .exitbar__t--short{display:inline}
  .exitbar,.pager{bottom:38px;padding:4px}
  .exitbar__btn{min-height:40px;padding:0 9px;font-size:11px}
  .pager__btn{min-height:40px;min-width:40px}
  .pager__num{min-width:48px;font-size:10px}
  .capsule.is-ask #soundBtn::after{right:-34px}
}
@media (max-width:360px){
  .pager__num{display:none}
  .exitbar__btn{padding:0 7px}
}
@media (prefers-reduced-motion:reduce){
  .exit-veil.is-in{animation-duration:.01ms;transform:translateY(0)}
  .exit-veil__line::after,.capsule.is-ask #soundBtn{animation:none}
}