/* 书渊 — Academia 书房风
   深胡桃木底 / 黄铜金 / 羊皮纸卡 / 衬线标题 — 禁紫蓝渐变·禁玻璃拟态 */

:root{
  --bg:#1c1917;            /* 胡桃木底 */
  --bg-sunk:#15120f;       /* 更深一档 */
  --panel:#251e19;         /* 橡木面板 */
  --panel-2:#2e2620;
  --paper:#f7f2e7;         /* 羊皮纸(亮卡) */
  --paper-dim:#efe7d6;
  --ink:#221d18;           /* 纸上墨色 */
  --brass:#c9a962;         /* 黄铜金 */
  --brass-deep:#a16207;    /* 深金(CTA) */
  --crimson:#8b2635;       /* 绛红 */
  --txt:#e8dfd4;           /* 深底文字(羊皮纸白) */
  --txt-dim:#9c8b7a;
  --txt-faint:#6f6255;
  --line:#4a3f35;          /* 深底线 */
  --line-gold:rgba(201,169,98,.32);
  --ok:#7c9a6d;
  --bad:#c65f5f;
  --r:4px;
  --serif:"Noto Serif SC","Source Han Serif SC","STSong","SimSun",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,sans-serif;
  --shadow-card:0 4px 14px rgba(0,0,0,.34);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  background-image:
    radial-gradient(1200px 500px at 50% -200px, rgba(201,169,98,.07), transparent 60%),
    repeating-linear-gradient(90deg, transparent 0 2px, rgba(0,0,0,.014) 2px 4px);
  color:var(--txt);
  font-family:var(--sans);
  line-height:1.6;
  min-height:100vh;
  padding-bottom:76px;
}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}
a{color:var(--brass)}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;gap:18px;
  padding:14px clamp(16px,4vw,40px);
  background:rgba(28,25,23,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:grid;place-items:center;
  background:linear-gradient(160deg,var(--brass) 0%,var(--brass-deep) 90%);
  color:#1a1408;font-family:var(--serif);font-weight:700;font-size:22px;
  border-radius:var(--r);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4), 0 3px 8px rgba(0,0,0,.4);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-text strong{font-family:var(--serif);font-size:20px;letter-spacing:.14em;font-weight:700}
.brand-text em{font-style:normal;font-size:11px;color:var(--txt-dim);letter-spacing:.08em;white-space:nowrap}
.nav-desk{display:flex;gap:4px;margin-left:18px}
.nav-btn{
  padding:9px 18px;font-size:14.5px;color:var(--txt-dim);
  border-radius:var(--r);letter-spacing:.1em;position:relative;
  transition:color .18s;
}
.nav-btn:hover{color:var(--txt)}
.nav-btn.active{color:var(--brass);font-weight:600}
.nav-btn.active::after{
  content:"";position:absolute;left:18px;right:18px;bottom:2px;height:2px;
  background:linear-gradient(90deg,var(--brass),rgba(201,169,98,.2));
}
.quota-pill{
  margin-left:auto;padding:7px 16px;font-size:13px;
  border:1px solid var(--line-gold);border-radius:999px;color:var(--brass);
  background:rgba(201,169,98,.07);letter-spacing:.06em;white-space:nowrap;
}
.quota-pill.anon{color:var(--txt-dim);border-color:var(--line);background:none}

/* ---------- 公告 ---------- */
.notice{
  margin:18px clamp(16px,4vw,40px) -6px;padding:10px 16px;
  font-size:13.5px;color:var(--paper-dim);
  background:linear-gradient(90deg, rgba(139,38,53,.16), rgba(139,38,53,.05));
  border:1px solid rgba(139,38,53,.4);border-left:3px solid var(--crimson);
  border-radius:var(--r);
}

/* ---------- 视图切换 ---------- */
.view{display:none;padding:0 clamp(16px,4vw,40px) 40px}
.view.active{display:block}

/* ---------- Hero / 搜索 ---------- */
.hero{padding:clamp(28px,5vw,56px) 0 clamp(20px,3vw,34px);max-width:860px}
.hero-slim{padding-bottom:10px}
.overline{
  font-size:12px;letter-spacing:.32em;color:var(--brass);
  text-transform:uppercase;margin-bottom:14px;
  display:flex;align-items:center;gap:10px;
}
.overline::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--line-gold),transparent);max-width:260px}
.searchform{
  display:flex;align-items:center;gap:10px;
  background:var(--panel);
  border:1px solid var(--line);
  border-bottom-color:var(--line-gold);
  border-radius:var(--r);
  padding:8px 8px 8px 16px;
  transition:border-color .2s;
}
.searchform:focus-within{border-color:var(--brass)}
.s-ic{width:18px;height:18px;flex:0 0 18px;stroke:var(--txt-dim);fill:none;stroke-width:2}
.searchform input{
  flex:1;min-width:0;background:none;border:none;outline:none;
  color:var(--txt);font-size:16.5px;padding:10px 0;letter-spacing:.02em;
}
.searchform input::placeholder{color:var(--txt-faint)}
.btn-brass{
  background:linear-gradient(170deg,#d8bd7a,var(--brass-deep));
  color:#1a1408;font-weight:700;letter-spacing:.2em;
  padding:11px 26px;border-radius:var(--r);font-size:14.5px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.45), 0 2px 6px rgba(0,0,0,.35);
  transition:transform .12s, filter .15s;
}
.btn-brass:hover{filter:brightness(1.07)}
.btn-brass:active{transform:translateY(1px)}
.btn-brass:disabled{opacity:.55;cursor:not-allowed}
.btn-brass.wide{width:100%;padding:13px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chip{
  font-size:12.5px;color:var(--txt-dim);padding:5px 13px;
  border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.02);
  transition:all .15s;
}
.chip:hover{color:var(--brass);border-color:var(--line-gold)}

/* ---------- 流式状态 ---------- */
.stream-state{
  display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--txt-dim);
  padding:8px 0 4px;letter-spacing:.05em;
}
.spinner{
  width:14px;height:14px;border-radius:50%;
  border:2px solid var(--line);border-top-color:var(--brass);
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* 下载进度条(模拟渐进, 让用户知道在下载) */
.dl-prog{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--txt-dim);letter-spacing:.04em;padding:4px 0}
.dl-prog .dl-track{
  flex:1;max-width:280px;height:6px;
  background:var(--bg-sunk);border:1px solid var(--line);
  border-radius:999px;overflow:hidden;
}
.dl-prog .dl-fill{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--brass-deep),var(--brass));
  border-radius:999px;transition:width .45s ease;
}
.dl-prog .dl-pct{min-width:38px;text-align:right;color:var(--brass);font-variant-numeric:tabular-nums;font-size:12.5px}
/* 行内进度条: 插在下载按钮所在行的下一行, 占满整行 */
.row-prog{flex:0 0 100%;width:100%;margin-top:8px}

/* 页脚 + 侵权申诉 */
.site-foot{display:flex;justify-content:center;gap:18px;padding:18px 0 84px;opacity:.75}
.site-foot .cp-link{background:none;border:none;color:var(--txt-faint);font-size:12.5px;letter-spacing:.08em;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.site-foot .cp-link:hover{color:var(--brass)}
#cpForm label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--txt-dim)}
#cpForm input,#cpForm select,#cpForm textarea{
  background:var(--bg-sunk);border:1px solid var(--line);border-radius:var(--r);
  padding:9px 11px;color:var(--txt);font-size:14px;outline:none;font-family:var(--sans);
}
#cpForm input:focus,#cpForm select:focus,#cpForm textarea:focus{border-color:var(--line-gold)}
#cpForm textarea{resize:vertical;min-height:64px}

/* ---------- 三板块 ---------- */
.board{
  margin-top:30px;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  animation:rise .34s cubic-bezier(.2,.7,.3,1);
}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.board-head{
  display:flex;align-items:center;gap:12px;
  padding:15px 20px;border-bottom:1px solid var(--line);
  background:linear-gradient(180deg, rgba(201,169,98,.05), transparent);
}
.board-ic{
  width:30px;height:30px;display:grid;place-items:center;
  font-family:var(--serif);font-size:15px;color:var(--brass);
  border:1px solid var(--line-gold);border-radius:var(--r);
  background:rgba(201,169,98,.08);
}
.board-head h2{font-family:var(--serif);font-size:16.5px;font-weight:600;letter-spacing:.1em}
.board-count{margin-left:auto;font-style:normal;font-size:12.5px;color:var(--txt-dim)}
.board-body{padding:6px 0}

/* 蓝奏 / 文件型条目 */
.rowfile{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:13px 20px;border-bottom:1px dashed rgba(74,63,53,.55);
}
.board-body .rowfile:last-child{border-bottom:none}
.rowfile-main{flex:1;min-width:0}
.rowfile-name{
  font-size:14.5px;color:var(--paper-dim);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.rowfile-meta{display:flex;gap:12px;font-size:12px;color:var(--txt-faint);margin-top:3px;flex-wrap:wrap}
.tag{
  font-size:11px;padding:1px 8px;border-radius:2px;letter-spacing:.06em;
  background:rgba(201,169,98,.1);color:var(--brass);border:1px solid rgba(201,169,98,.25);
}
.tag.dim{background:rgba(255,255,255,.04);color:var(--txt-faint);border-color:var(--line)}

/* mysite 分站小节 */
.site-sec{padding:8px 0}
.site-sec-title{
  font-family:var(--serif);font-size:14px;color:var(--brass);
  padding:9px 20px 5px;letter-spacing:.12em;
  display:flex;align-items:center;gap:8px;
}
.site-sec-title::after{content:"";flex:1;height:1px;background:var(--line-gold);opacity:.5}
.site-sec .rowfile{padding-left:26px}

/* sonovel 书籍行 */
.rowbook{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:13px 20px;border-bottom:1px dashed rgba(74,63,53,.55);
}
.board-body .rowbook:last-child{border-bottom:none}
.rowbook-no{
  font-family:var(--serif);font-size:13px;color:var(--txt-faint);
  width:26px;text-align:right;flex:0 0 26px;
}
.rowbook-main{flex:1;min-width:0}
.rowbook-name{font-size:14.5px;color:var(--paper-dim);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rowbook-name b{color:var(--txt);font-weight:600}
.rowbook-meta{display:flex;gap:12px;font-size:12px;color:var(--txt-faint);margin-top:3px;flex-wrap:wrap}
.empty-in{padding:26px 20px;text-align:center;color:var(--txt-faint);font-size:13.5px}

/* 行内按钮 */
.btn-line{
  flex:0 0 auto;padding:8px 16px;font-size:13px;letter-spacing:.08em;
  border:1px solid var(--line-gold);border-radius:var(--r);
  color:var(--brass);background:rgba(201,169,98,.06);
  transition:all .15s;
}
.btn-line:hover{background:rgba(201,169,98,.16)}
.btn-line:disabled{opacity:.5;cursor:wait}
.btn-line.busy::after{
  content:"";display:inline-block;width:9px;height:9px;margin-left:7px;
  border:1.5px solid currentColor;border-top-color:transparent;border-radius:50%;
  animation:spin .7s linear infinite;vertical-align:-1px;
}

/* ---------- 空状态 ---------- */
.empty-state{
  text-align:center;padding:clamp(40px,9vh,90px) 20px;color:var(--txt-dim);
  display:flex;flex-direction:column;align-items:center;gap:16px;
}
.empty-glyph{
  width:74px;height:74px;display:grid;place-items:center;
  font-family:var(--serif);font-size:32px;color:var(--brass);
  border:1.5px solid var(--line-gold);border-radius:50%;
  background:radial-gradient(circle at 35% 30%, rgba(201,169,98,.14), transparent 70%);
}
.empty-state p:last-child{font-size:13.5px;letter-spacing:.06em;line-height:2}

/* ---------- 书卡片(七猫/番茄) ---------- */
.book-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(150px,1fr));
  gap:clamp(14px,2.5vw,24px);
  padding:22px 0;
}
.book-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;cursor:pointer;text-align:left;
  transition:transform .18s, border-color .18s, box-shadow .18s;
  animation:rise .3s ease both;
}
.book-card:hover{transform:translateY(-3px);border-color:var(--line-gold);box-shadow:0 8px 22px rgba(0,0,0,.42)}
.book-cover{
  aspect-ratio:3/4;position:relative;overflow:hidden;
  background:linear-gradient(150deg,#3a3028,#241d17);
}
.book-cover img{width:100%;height:100%;object-fit:cover;display:block}
.book-cover .noimg{
  position:absolute;inset:0;display:grid;place-items:center;
  font-family:var(--serif);font-size:34px;color:rgba(201,169,98,.5);
}
.book-cover .status{
  position:absolute;top:8px;right:8px;font-size:11px;padding:2px 8px;
  background:rgba(21,18,15,.85);color:var(--brass);border:1px solid var(--line-gold);
  border-radius:2px;letter-spacing:.05em;
}
.book-info{padding:11px 12px 13px}
.book-title{
  font-family:var(--serif);font-size:14.5px;font-weight:600;color:var(--paper);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  line-height:1.45;min-height:2.9em;
}
.book-author{font-size:12px;color:var(--txt-dim);margin-top:5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.book-stats{display:flex;gap:8px;font-size:11.5px;color:var(--txt-faint);margin-top:6px}
.grid-empty{padding:50px 0;text-align:center;color:var(--txt-faint);letter-spacing:.1em}

/* ---------- 我的 ---------- */
.me-panel{max-width:520px;margin:0 auto;padding-top:clamp(24px,5vw,48px)}
.tabs-mini{display:flex;gap:6px;margin-bottom:20px;border-bottom:1px solid var(--line)}
.tabs-mini button{
  padding:10px 22px;font-size:14.5px;color:var(--txt-dim);
  border-bottom:2px solid transparent;letter-spacing:.1em;
}
.tabs-mini button.active{color:var(--brass);border-bottom-color:var(--brass);font-weight:600}
.stackform{display:flex;flex-direction:column;gap:16px}
.stackform label{display:flex;flex-direction:column;gap:7px;font-size:13px;color:var(--txt-dim);letter-spacing:.08em}
.stackform input{
  background:var(--bg-sunk);border:1px solid var(--line);border-radius:var(--r);
  padding:13px 14px;font-size:15px;color:var(--txt);outline:none;
  transition:border-color .18s;
}
.stackform input:focus{border-color:var(--brass)}
.fineprint{font-size:12px;color:var(--txt-faint)}
.fineprint.center{text-align:center;margin-top:14px}

.member-card{
  background:linear-gradient(155deg,var(--panel-2),var(--panel));
  border:1px solid var(--line-gold);border-radius:var(--r);
  padding:20px;box-shadow:var(--shadow-card);position:relative;overflow:hidden;
}
.member-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--brass),transparent 70%);
}
.member-top{display:flex;align-items:center;gap:14px}
.member-avatar{
  width:52px;height:52px;border-radius:50%;display:grid;place-items:center;
  background:radial-gradient(circle at 30% 30%,#d8bd7a,var(--brass-deep));
  color:#1a1408;font-family:var(--serif);font-size:22px;font-weight:700;
}
.member-top strong{font-family:var(--serif);font-size:19px;letter-spacing:.08em;display:block}
.member-top p{font-size:12.5px;color:var(--txt-dim);margin-top:2px}
.member-badge{
  margin-left:auto;font-size:11px;color:var(--crimson);font-weight:700;
  border:1px solid var(--crimson);padding:3px 10px;border-radius:2px;letter-spacing:.12em;
  background:rgba(139,38,53,.12);
}
.member-stats{display:flex;gap:10px;margin-top:18px}
.member-stats div{
  flex:1;background:rgba(0,0,0,.24);border:1px solid var(--line);
  border-radius:var(--r);padding:12px;text-align:center;
}
.member-stats b{font-family:var(--serif);font-size:22px;color:var(--brass);display:block;font-weight:600}
.member-stats span{font-size:11.5px;color:var(--txt-dim);letter-spacing:.1em}
.admin-entry{display:block;text-align:center;margin-top:14px;text-decoration:none;font-size:13.5px}
.btn-ghost{
  border:1px solid var(--line);color:var(--txt-dim);background:rgba(255,255,255,.03);
  padding:11px 20px;border-radius:var(--r);font-size:14px;letter-spacing:.1em;
  transition:all .15s;display:inline-block;text-align:center;
}
.btn-ghost:hover{border-color:var(--txt-dim);color:var(--txt)}
.btn-ghost.danger:hover{border-color:var(--bad);color:var(--bad)}
.btn-ghost.wide{width:100%;margin-top:26px}
.me-block{margin-top:26px}
.redeem-row{display:flex;gap:10px}
.redeem-row input{
  flex:1;min-width:0;background:var(--bg-sunk);border:1px solid var(--line);
  border-radius:var(--r);padding:12px 14px;color:var(--txt);font-size:14.5px;
  outline:none;letter-spacing:.05em;
}
.redeem-row input:focus{border-color:var(--brass)}
.records{list-style:none;display:flex;flex-direction:column;gap:2px}
.records li{
  display:flex;gap:12px;align-items:baseline;font-size:13.5px;color:var(--paper-dim);
  padding:9px 2px;border-bottom:1px dashed rgba(74,63,53,.5);
}
.records li .mod{font-size:11px;color:var(--brass);flex:0 0 auto;letter-spacing:.08em}
.records li .t{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.records li time{font-size:11.5px;color:var(--txt-faint)}

/* ---------- 抽屉 ---------- */
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(10,8,6,.6);z-index:80;
  animation:fade .2s ease;
}
@keyframes fade{from{opacity:0}to{opacity:1}}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(460px,100vw);z-index:90;
  background:var(--bg);border-left:1px solid var(--line-gold);
  box-shadow:-18px 0 50px rgba(0,0,0,.5);
  transform:translateX(102%);transition:transform .3s cubic-bezier(.2,.8,.25,1);
  overflow-y:auto;overscroll-behavior:contain;
}
.drawer.open{transform:none}
.drawer-close{
  position:absolute;top:12px;right:14px;z-index:2;
  width:36px;height:36px;font-size:22px;color:var(--txt-dim);
  background:rgba(21,18,15,.7);border:1px solid var(--line);border-radius:50%;
}
.drawer-close:hover{color:var(--brass);border-color:var(--line-gold)}
.drawer-inner{padding:26px 24px 40px}
.d-head{display:flex;gap:18px;margin-bottom:6px}
.d-cover{
  width:118px;flex:0 0 118px;aspect-ratio:3/4;border-radius:var(--r);overflow:hidden;
  background:linear-gradient(150deg,#3a3028,#241d17);border:1px solid var(--line-gold);
  box-shadow:0 8px 20px rgba(0,0,0,.5);
}
.d-cover img{width:100%;height:100%;object-fit:cover}
.d-cover .noimg{width:100%;height:100%;display:grid;place-items:center;font-family:var(--serif);font-size:38px;color:rgba(201,169,98,.5)}
.d-title{font-family:var(--serif);font-size:19px;font-weight:700;color:var(--paper);line-height:1.45;letter-spacing:.04em}
.d-sub{font-size:13px;color:var(--txt-dim);margin-top:7px}
.d-abstract{
  font-size:13.5px;color:var(--txt-dim);line-height:1.85;margin-top:16px;
  padding-top:14px;border-top:1px solid var(--line);
  display:-webkit-box;-webkit-line-clamp:5;-webkit-box-orient:vertical;overflow:hidden;
}
.d-actions{display:flex;gap:12px;margin-top:18px;align-items:center}
.d-actions .btn-brass{flex:1}
.d-wait{font-size:12.5px;color:var(--brass);display:flex;align-items:center;gap:8px}
.d-catalog{
  margin-top:22px;border-top:1px solid var(--line);padding-top:14px;
}
.d-catalog .overline{margin-bottom:10px}
.d-chapters{list-style:none;max-height:44vh;overflow-y:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--bg-sunk)}
.d-chapters li{
  padding:10px 14px;font-size:13.5px;color:var(--paper-dim);
  border-bottom:1px dashed rgba(74,63,53,.4);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.d-chapters li:last-child{border-bottom:none}

/* ---------- 弹层 ---------- */
[hidden]{display:none !important}

/* 下载记录重下按钮 */
.records li{display:flex;align-items:center;gap:8px}
.records li .t{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rec-dl{
  flex:0 0 auto;font-size:11.5px;padding:3px 10px;border-radius:3px;cursor:pointer;
  border:1px solid var(--line-gold);background:rgba(201,169,98,.1);color:var(--brass);
  letter-spacing:.05em;transition:background .15s;
}
.rec-dl:hover{background:rgba(201,169,98,.22)}
.rec-dl:disabled{opacity:.5;cursor:wait}
#recordNote{margin:-4px 0 8px;line-height:1.6}

/* 七猫/番茄 紧凑列表行 (图3风格: 小封面+元数据+简介+下载) */
.book-list{display:flex;flex-direction:column;gap:10px;padding:4px 0}
.book-row{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:12px 16px;
  border:1px solid var(--line);border-radius:var(--r);
  background:rgba(255,255,255,.02);
  transition:border-color .15s ease, background .15s ease;
}
.book-row:hover{border-color:var(--line-gold);background:rgba(201,169,98,.05)}
.br-cover{
  flex:0 0 auto;width:54px;height:72px;border-radius:4px;overflow:hidden;
  background:rgba(201,169,98,.08);display:flex;align-items:center;justify-content:center;
}
.br-cover img{width:100%;height:100%;object-fit:cover;display:block}
.br-noimg{font-family:var(--serif);font-size:20px;color:var(--brass);opacity:.55}
.br-main{flex:1;min-width:0}
.br-title{
  font-family:var(--serif);font-size:15px;font-weight:600;color:var(--paper-dim);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.br-meta{font-size:12px;color:var(--txt-faint);margin-top:4px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.br-alias{font-size:11.5px;color:var(--brass);opacity:.78;margin-top:3px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.br-brief{
  font-size:12px;color:var(--txt-faint);opacity:.72;margin-top:5px;line-height:1.5;
  overflow:hidden;text-overflow:ellipsis;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.book-row .btn-line{flex:0 0 auto}

@media (max-width:640px){
  .book-row{padding:10px 12px;gap:10px}
  .br-cover{width:46px;height:62px}
  .br-title{font-size:14px}
  .br-brief{display:none}
}
.modal-backdrop{
  position:fixed;inset:0;z-index:110;background:rgba(10,8,6,.65);
  display:flex;align-items:flex-start;justify-content:center;
  overflow-y:auto;-webkit-overflow-scrolling:touch;
  padding:20px;animation:fade .18s ease;
}
.modal{
  width:min(400px,100%);background:var(--panel);border:1px solid var(--line-gold);
  border-radius:var(--r);padding:26px 24px 22px;box-shadow:0 24px 60px rgba(0,0,0,.6);
  margin:auto;flex-shrink:0;
}
.modal h3{font-family:var(--serif);font-size:19px;margin-bottom:18px;letter-spacing:.08em;font-weight:700}
.modal-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:4px}
.modal-actions .btn-brass{padding:11px 22px}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:96px;transform:translate(-50%,20px);z-index:200;
  background:var(--panel-2);color:var(--paper);font-size:14px;
  border:1px solid var(--line-gold);border-radius:var(--r);
  padding:12px 22px;opacity:0;pointer-events:none;
  transition:all .25s;max-width:88vw;box-shadow:0 10px 30px rgba(0,0,0,.5);
  letter-spacing:.03em;
}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.bad{border-color:var(--bad);color:#f0c9c9}
.toast.good{border-color:var(--ok)}

/* ---------- 底部 tab (移动端) ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:none; /* 桌面隐藏,移动显示 */
  background:rgba(21,18,15,.97);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar button{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:10px 0 9px;font-size:11.5px;color:var(--txt-faint);letter-spacing:.06em;
}
.tabbar .t-ic{
  font-family:var(--serif);font-size:17px;width:30px;height:30px;
  display:grid;place-items:center;border-radius:50%;
  border:1.5px solid transparent;
}
.tabbar button.active{color:var(--brass)}
.tabbar button.active .t-ic{border-color:var(--brass);background:rgba(201,169,98,.1)}

/* ---------- 响应式 ---------- */
@media (max-width: 820px){
  .nav-desk{display:none}
  .tabbar{display:flex}
  .topbar{padding:11px 16px}
  .brand-mark{width:36px;height:36px;flex-basis:36px;font-size:19px}
  .brand-text strong{font-size:17.5px}
  .brand-text em{font-size:10px}
  .quota-pill{font-size:11.5px;padding:6px 12px}
  .book-grid{grid-template-columns:repeat(auto-fill,minmax(118px,1fr));gap:12px}
  .book-title{font-size:13px;min-height:2.8em}
  .hero{padding-top:24px}
  .searchform{padding-left:12px}
  .searchform input{font-size:16px}
  .btn-brass{padding:11px 18px;letter-spacing:.12em}
  .drawer{width:100vw;border-left:none}
  .rowfile,.rowbook{padding:12px 14px;gap:10px}
  .site-sec .rowfile{padding-left:18px}
  .board-head{padding:13px 14px}
  .board-count{font-size:11.5px}
}
@media (min-width: 821px) and (max-width: 1024px){
  .nav-btn{padding:9px 13px;font-size:13.5px}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* ---------- modal 手机端适配 ---------- */
@media (max-width:480px){
  .modal-backdrop{padding:12px}
  .modal{padding:22px 16px 18px}
  .modal h3{font-size:18px;margin-bottom:14px}
  .modal-actions{gap:10px}
  .modal-actions .btn-brass{padding:11px 18px}
}

/* 下载首字节不确定态: 滑动条(不显示百分比, 防止假进度回退) */
.dl-prog.loading .dl-fill{width:35%;transition:none;animation:dlslide 1.1s ease-in-out infinite}
.dl-prog.loading .dl-pct{visibility:hidden}
@keyframes dlslide{0%{transform:translateX(-110%)}100%{transform:translateX(330%)}}