/* ===== 书简 · 书斋风设计系统 v2（秀气版） ===== */
:root{
  /* 纸与墨 */
  --paper:        #F8F5ED;
  --paper-2:      #FFFDF7;
  --paper-3:      #F2ECE0;
  --ink:          #232220;
  --ink-soft:     #6E6858;
  --ink-faint:    #9C9482;
  /* 松墨 · 朱砂 · 书腰金 */
  --pine:         #2C4638;
  --pine-2:       #3A5B49;
  --pine-wash:    #EAF0EA;
  --cinnabar:     #9B4436;
  --cinnabar-2:   #B04A38;
  --gold:         #A8873F;
  --gold-wash:    #F3ECDC;
  /* 线 */
  --line:         rgba(35,34,32,.10);
  --line-2:       rgba(35,34,32,.055);
  /* 字 */
  --serif: "Noto Serif SC","Songti SC","STSong","Source Han Serif SC","SimSun",serif;
  --sans:  "Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  /* 形 */
  --r:     5px;    /* 书封圆角 */
  --r-lg:  18px;   /* 容器圆角 */
  --maxw:  1160px;
  --ease:  cubic-bezier(.22,.61,.36,1);
  /* 影 */
  --shadow-c:    0 16px 32px -18px rgba(35,34,32,.42), 0 2px 8px -3px rgba(35,34,32,.14);
  --shadow-c-hi: 0 30px 56px -24px rgba(35,34,32,.50), 0 6px 16px -7px rgba(35,34,32,.18);
  --shadow-ui:   0 1px 2px rgba(44,70,56,.04), 0 12px 32px -14px rgba(44,70,56,.14);
  --shadow-ui-hi:0 2px 6px rgba(44,70,56,.07), 0 22px 48px -18px rgba(44,70,56,.22);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background-color:var(--paper);
  background-image:
    radial-gradient(circle at 12% 4%, rgba(168,135,63,.055), transparent 38%),
    radial-gradient(circle at 88% 12%, rgba(44,70,56,.045), transparent 44%),
    radial-gradient(circle at 50% 100%, rgba(155,68,54,.035), transparent 46%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.86' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.02'/%3E%3C/svg%3E");
  line-height:1.78;
  letter-spacing:.012em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:rgba(155,68,54,.16);}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
h1,h2,h3,h4{font-weight:700;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px;}

/* ===== 顶栏 ===== */
.nav{
  position:sticky;top:0;z-index:60;
  background:rgba(248,245,237,.78);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--line-2);
}
.nav-inner{display:flex;align-items:center;gap:30px;height:70px;}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);}
.brand .seal{
  width:34px;height:34px;border-radius:8px;
  background:linear-gradient(155deg,var(--cinnabar-2),var(--cinnabar));
  color:#FDF9F0;
  display:grid;place-items:center;font-size:18px;font-weight:700;
  font-family:var(--serif);
  box-shadow:0 3px 10px -4px rgba(155,68,54,.6), inset 0 0 0 1px rgba(255,255,255,.16);
  letter-spacing:0;
}
.brand .name{font-size:20px;letter-spacing:.16em;color:var(--ink);font-weight:700;}
.brand .name small{font-size:10.5px;letter-spacing:.22em;color:var(--ink-faint);font-weight:400;margin-left:7px;font-family:var(--sans);}
.nav-links{display:flex;gap:28px;margin-left:6px;}
.nav-links a{
  font-size:14px;color:var(--ink-soft);letter-spacing:.08em;transition:color .25s var(--ease);
  position:relative;padding-bottom:3px;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:1.5px;
  background:var(--cinnabar);transition:left .3s var(--ease),right .3s var(--ease);
}
.nav-links a:hover{color:var(--pine);}
.nav-links a:hover::after{left:0;right:0;}
.nav-cta{margin-left:auto;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--sans);font-size:13.5px;letter-spacing:.09em;
  padding:10px 22px;border-radius:999px;border:1px solid var(--pine);
  background:var(--pine);color:#F8F5ED;cursor:pointer;
  transition:transform .25s var(--ease), background .25s var(--ease), box-shadow .25s var(--ease), border-color .25s;
  white-space:nowrap;
}
.btn:hover{background:var(--pine-2);transform:translateY(-1px);box-shadow:var(--shadow-ui-hi);}
.btn:active{transform:translateY(0);}
.btn.ghost{background:transparent;color:var(--pine);border-color:var(--line);}
.btn.ghost:hover{background:var(--pine-wash);border-color:rgba(44,70,56,.28);}
.btn.cinn{background:var(--cinnabar);border-color:var(--cinnabar);}
.btn.cinn:hover{background:var(--cinnabar-2);border-color:var(--cinnabar-2);box-shadow:0 14px 28px -12px rgba(155,68,54,.5);}

/* ===== 通用区块 ===== */
.section{padding:70px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:22px;margin-bottom:34px;flex-wrap:wrap;}
.section-head h2{
  font-family:var(--serif);font-size:28px;letter-spacing:.07em;margin:0;color:var(--ink);line-height:1.4;
}
.section-head h2 .accent{color:var(--cinnabar);}
.section-head p{margin:9px 0 0;color:var(--ink-soft);font-size:14px;max-width:540px;line-height:1.8;}
.eyebrow{
  font-size:11.5px;letter-spacing:.34em;color:var(--gold);
  margin-bottom:12px;font-weight:600;display:flex;align-items:center;gap:11px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--gold);opacity:.7;}

/* ===== Hero ===== */
.hero{padding:78px 0 62px;position:relative;}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(168,135,63,.10),transparent 68%);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:62px;align-items:center;position:relative;}
.hero h1{
  font-family:var(--serif);font-size:50px;line-height:1.32;letter-spacing:.05em;
  margin:16px 0 20px;color:var(--ink);font-weight:700;
}
.hero h1 .em{color:var(--cinnabar);position:relative;white-space:nowrap;}
.hero h1 .em::after{
  content:"";position:absolute;left:-2px;right:-2px;bottom:7px;height:11px;
  background:linear-gradient(90deg,rgba(168,135,63,.30),rgba(168,135,63,.14));
  z-index:-1;border-radius:1px;
}
.hero p.lead{font-size:16.5px;color:var(--ink-soft);max-width:510px;margin:0 0 28px;line-height:1.95;}
.hero-stats{display:flex;gap:0;margin:32px 0 34px;flex-wrap:wrap;}
.stat{padding-right:32px;margin-right:32px;border-right:1px solid var(--line);}
.stat:last-child{border-right:none;padding-right:0;margin-right:0;}
.stat .num{font-family:var(--serif);font-size:29px;color:var(--pine);font-weight:700;line-height:1;letter-spacing:.02em;}
.stat .lab{font-size:12.5px;color:var(--ink-faint);margin-top:9px;letter-spacing:.12em;}
.hero-actions{display:flex;gap:13px;flex-wrap:wrap;}

/* Hero 推荐卡 */
.hero-card{
  background:linear-gradient(178deg,var(--paper-2),#FBF7EE);
  border:1px solid var(--line-2);
  border-radius:var(--r-lg);
  padding:26px 26px 22px;
  box-shadow:var(--shadow-ui);
  position:relative;overflow:hidden;
}
.hero-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--cinnabar),var(--gold) 45%,transparent);
  opacity:.85;
}
.hc-top{display:flex;gap:18px;align-items:flex-start;margin-bottom:18px;}
.hc-cover{
  width:92px;flex:0 0 auto;aspect-ratio:7/10;border-radius:var(--r);
  overflow:hidden;box-shadow:var(--shadow-c);position:relative;
}
.hc-cover img{width:100%;height:100%;object-fit:cover;}
.hc-cover.noimg{display:flex;flex-direction:column;justify-content:space-between;padding:10px 9px;color:#F8F5ED;}
.hc-cover.noimg .t{font-family:var(--serif);font-size:13px;line-height:1.35;font-weight:700;}
.hc-cover.noimg .a{font-size:9.5px;opacity:.85;}
.hc-info{flex:1;min-width:0;}
.hero-card .tag{
  font-size:11px;letter-spacing:.24em;color:var(--gold);font-weight:600;
}
.hero-card h3{font-family:var(--serif);font-size:20px;margin:9px 0 5px;color:var(--ink);letter-spacing:.03em;line-height:1.4;}
.hero-card .by{font-size:12.5px;color:var(--ink-faint);margin:0;letter-spacing:.04em;}
.hero-card .oneliner{
  font-family:var(--serif);font-style:italic;color:var(--pine);font-size:14.5px;
  margin:0 0 16px;line-height:1.85;border-left:2px solid rgba(155,68,54,.35);padding-left:14px;
}
.point{display:flex;gap:11px;padding:11px 0;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-soft);line-height:1.7;}
.point:first-of-type{border-top:none;}
.point b{color:var(--cinnabar);font-family:var(--serif);flex:0 0 auto;font-size:12.5px;padding-top:1px;}

/* ===== 分类书架 ===== */
.shelves{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;}
.shelf{
  background:var(--paper-2);border:1px solid var(--line-2);
  border-radius:var(--r-lg);padding:24px 22px;cursor:pointer;
  transition:transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  position:relative;overflow:hidden;
}
.shelf::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
  background:linear-gradient(90deg,var(--cinnabar),var(--gold));
  transition:width .4s var(--ease);
}
.shelf:hover{transform:translateY(-5px);box-shadow:var(--shadow-ui-hi);border-color:rgba(44,70,56,.2);}
.shelf:hover::after{width:100%;}
.shelf .ico{font-size:22px;margin-bottom:12px;opacity:.92;line-height:1;}
.shelf h3{font-family:var(--serif);font-size:17.5px;margin:0 0 5px;letter-spacing:.07em;}
.shelf .cnt{font-size:12.5px;color:var(--ink-faint);letter-spacing:.03em;}
.shelf .go{
  position:absolute;right:20px;bottom:20px;color:var(--cinnabar);font-size:15px;
  opacity:0;transition:opacity .28s var(--ease),transform .28s var(--ease);transform:translateX(-7px);
}
.shelf:hover .go{opacity:1;transform:translateX(0);}

/* ===== 书卡网格 ===== */
.books{display:grid;grid-template-columns:repeat(4,1fr);gap:30px 24px;}
.book{display:flex;flex-direction:column;cursor:pointer;}

/* 书封通用 */
.cover{
  aspect-ratio:7/10;position:relative;border-radius:var(--r);overflow:hidden;
  display:flex;flex-direction:column;justify-content:space-between;
  padding:20px 17px;color:#F8F5ED;
  box-shadow:var(--shadow-c);
  transition:transform .35s var(--ease), box-shadow .35s var(--ease);
}
.book:hover .cover{transform:translateY(-6px);box-shadow:var(--shadow-c-hi);}
/* 书脊 */
.cover::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:6px;z-index:3;
  background:linear-gradient(90deg,rgba(0,0,0,.30),rgba(0,0,0,.06) 60%,transparent);
  pointer-events:none;
}
/* 书封细边 */
.cover::after{
  content:"";position:absolute;inset:8px;border:1px solid rgba(255,255,255,.15);
  border-radius:2px;z-index:3;pointer-events:none;
}
.cover .cat{
  font-size:10.5px;letter-spacing:.22em;opacity:.86;text-transform:uppercase;font-weight:600;
  position:relative;z-index:2;
}
.cover .ttl{
  font-family:var(--serif);font-size:19px;line-height:1.42;font-weight:700;letter-spacing:.05em;
  text-shadow:0 1px 4px rgba(0,0,0,.28);position:relative;z-index:2;
}
.cover .au{font-size:12px;opacity:.9;letter-spacing:.06em;position:relative;z-index:2;}

/* 真实封面图 */
.cover.has-img{padding:0;display:block;background:#16233A;}
.cover.has-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s var(--ease);}
.book:hover .cover.has-img img{transform:scale(1.035);}
.cover.has-img::after{
  inset:0;border:none;border-radius:0;
  background:linear-gradient(100deg,rgba(255,255,255,.14) 0%,rgba(255,255,255,0) 32%,rgba(0,0,0,.10) 100%);
}
.cover .badge{
  position:absolute;left:12px;top:12px;z-index:4;
  font-size:10.5px;letter-spacing:.16em;font-weight:600;
  padding:4px 10px;border-radius:999px;
  background:rgba(248,245,237,.92);color:var(--cinnabar);
  backdrop-filter:blur(4px);box-shadow:0 3px 10px -4px rgba(0,0,0,.35);
}

/* 卡内文字 */
.book .meta{padding:16px 2px 0;}
.book .bt{
  font-family:var(--serif);font-size:16px;margin:0 0 4px;letter-spacing:.05em;
  line-height:1.45;color:var(--ink);font-weight:700;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.book .ba{font-size:12px;color:var(--ink-faint);letter-spacing:.08em;margin-bottom:9px;}
.book .oneliner{
  font-size:12.5px;color:var(--ink-soft);line-height:1.72;min-height:43px;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.book .foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:12px;padding-top:11px;border-top:1px solid var(--line-2);
  font-size:12px;color:var(--ink-faint);letter-spacing:.04em;
}
.rating{display:inline-flex;align-items:center;gap:5px;color:var(--gold);font-weight:600;}
.rating .star{color:var(--gold);letter-spacing:-.02em;}
.reads{color:var(--ink-faint);}

/* 封面配色（无图时） */
.c-pine{background:linear-gradient(152deg,#33513F,#1E3226);}
.c-cinn{background:linear-gradient(152deg,#A64E3E,#67291F);}
.c-gold{background:linear-gradient(152deg,#B99353,#7E5C24);}
.c-blue{background:linear-gradient(152deg,#395F72,#1B3340);}
.c-plum{background:linear-gradient(152deg,#5F4262,#38263C);}
.c-ink{background:linear-gradient(152deg,#3E3E39,#1F1F1C);}

/* ===== 书架页工具栏 ===== */
.toolbar{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-bottom:18px;}
.search{
  flex:1;min-width:250px;display:flex;align-items:center;gap:11px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:999px;padding:11px 20px;
  transition:border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.search:focus-within{border-color:rgba(44,70,56,.35);box-shadow:0 0 0 4px rgba(44,70,56,.06);}
.search input{border:none;background:transparent;outline:none;flex:1;font-size:14.5px;color:var(--ink);font-family:var(--sans);letter-spacing:.03em;}
.search input::placeholder{color:var(--ink-faint);}
.search .ico{color:var(--ink-faint);font-size:14px;}
.chips{display:flex;gap:9px;flex-wrap:wrap;}
.chip{
  font-size:12.5px;padding:7px 16px;border-radius:999px;border:1px solid var(--line);
  background:var(--paper-2);color:var(--ink-soft);cursor:pointer;
  transition:all .25s var(--ease);letter-spacing:.06em;
}
.chip:hover{border-color:rgba(44,70,56,.35);color:var(--pine);transform:translateY(-1px);}
.chip.active{
  background:var(--pine);border-color:var(--pine);color:#F8F5ED;
  box-shadow:0 8px 18px -10px rgba(44,70,56,.7);
}

/* ===== 详情页 ===== */
.detail-hero{padding:44px 0 40px;}
.back{
  font-size:13px;color:var(--ink-faint);margin-bottom:26px;display:inline-flex;gap:7px;align-items:center;
  cursor:pointer;letter-spacing:.08em;transition:color .25s var(--ease), gap .25s var(--ease);
}
.back:hover{color:var(--cinnabar);gap:11px;}
.detail-grid{display:grid;grid-template-columns:290px 1fr;gap:56px;align-items:start;}

.detail-cover{
  border-radius:var(--r);overflow:hidden;color:#F8F5ED;
  aspect-ratio:7/10;display:flex;flex-direction:column;justify-content:space-between;
  padding:26px 23px;box-shadow:var(--shadow-c-hi);
  position:sticky;top:100px;
}
.detail-cover::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:7px;z-index:3;
  background:linear-gradient(90deg,rgba(0,0,0,.30),transparent);pointer-events:none;
}
.detail-cover .cat{font-size:11px;letter-spacing:.24em;opacity:.88;text-transform:uppercase;font-weight:600;position:relative;z-index:2;}
.detail-cover .ttl{
  font-family:var(--serif);font-size:26px;line-height:1.36;font-weight:700;letter-spacing:.06em;
  text-shadow:0 1px 5px rgba(0,0,0,.3);position:relative;z-index:2;
}
.detail-cover .au{font-size:13.5px;opacity:.9;letter-spacing:.08em;position:relative;z-index:2;}
.detail-cover.has-img{padding:0;display:block;}
.detail-cover.has-img img{width:100%;height:100%;object-fit:cover;}

.detail-meta{display:flex;gap:0;flex-wrap:wrap;margin:0 0 16px;}
.detail-meta .m{padding-right:26px;margin-right:26px;border-right:1px solid var(--line);}
.detail-meta .m:last-child{border-right:none;padding-right:0;margin-right:0;}
.detail-meta .m .v{font-family:var(--serif);font-size:19px;color:var(--pine);font-weight:700;line-height:1.2;letter-spacing:.02em;}
.detail-meta .m .k{font-size:11.5px;color:var(--ink-faint);letter-spacing:.1em;margin-top:5px;}
.detail h1{font-family:var(--serif);font-size:34px;letter-spacing:.06em;margin:10px 0 8px;line-height:1.32;font-weight:700;}
.detail .byline{color:var(--ink-soft);font-size:14.5px;margin-bottom:20px;letter-spacing:.06em;}
.oneliner-big{
  font-family:var(--serif);font-style:italic;font-size:18px;color:var(--pine);
  border-left:2px solid var(--cinnabar);padding:6px 0 6px 20px;margin:20px 0 28px;line-height:1.9;letter-spacing:.03em;
}
.actions{display:flex;gap:12px;margin:24px 0 8px;flex-wrap:wrap;}

/* 听书条 */
.player{
  display:flex;align-items:center;gap:15px;background:var(--pine-wash);
  border:1px solid rgba(44,70,56,.12);border-radius:var(--r-lg);padding:13px 18px;margin:20px 0 32px;
}
.player .pp{
  width:40px;height:40px;border-radius:50%;background:var(--pine);color:#fff;
  display:grid;place-items:center;cursor:pointer;flex:0 0 auto;font-size:14px;
  transition:background .25s var(--ease), transform .25s var(--ease);
  box-shadow:0 6px 14px -8px rgba(44,70,56,.8);
}
.player .pp:hover{background:var(--pine-2);transform:scale(1.05);}
.player .bar{flex:1;height:4px;background:rgba(44,70,56,.16);border-radius:99px;overflow:hidden;}
.player .bar i{display:block;height:100%;width:34%;background:linear-gradient(90deg,var(--cinnabar),var(--cinnabar-2));border-radius:99px;transition:width .5s linear;}
.player .t{font-size:12px;color:var(--ink-soft);font-variant-numeric:tabular-nums;letter-spacing:.04em;white-space:nowrap;}
.player .hint{font-size:11px;color:#89A294;letter-spacing:.04em;white-space:nowrap;}

/* 章节要点 */
.chapter{
  background:var(--paper-2);border:1px solid var(--line-2);border-radius:var(--r-lg);
  padding:20px 24px;margin-bottom:14px;
  transition:border-color .3s var(--ease), box-shadow .3s var(--ease), transform .3s var(--ease);
}
.chapter:hover{border-color:rgba(44,70,56,.2);box-shadow:var(--shadow-ui);transform:translateY(-2px);}
.chapter .ch-head{display:flex;align-items:center;gap:13px;margin-bottom:10px;}
.chapter .ch-no{
  width:28px;height:28px;border-radius:8px;background:var(--gold-wash);color:var(--cinnabar);
  display:grid;place-items:center;font-family:var(--serif);font-weight:700;font-size:13px;flex:0 0 auto;
  box-shadow:inset 0 0 0 1px rgba(168,135,63,.22);
}
.chapter h4{font-family:var(--serif);font-size:16px;margin:0;color:var(--ink);letter-spacing:.07em;font-weight:700;}
.chapter .ch-list{margin:4px 0 0;padding-left:0;list-style:none;}
.chapter .ch-list li{
  position:relative;padding:8px 0 8px 20px;font-size:13.5px;color:var(--ink-soft);
  line-height:1.85;border-top:1px dashed var(--line-2);
}
.chapter .ch-list li:first-child{border-top:none;padding-top:4px;}
.chapter .ch-list li::before{content:"";position:absolute;left:5px;top:17px;width:4px;height:4px;border-radius:50%;background:var(--cinnabar);opacity:.55;}
.chapter .ch-list li:first-child::before{top:13px;}

/* ===== 页脚 ===== */
.footer{border-top:1px solid var(--line-2);background:var(--paper-3);padding:52px 0 32px;margin-top:50px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;}
.footer h4{font-family:var(--serif);font-size:14px;margin:0 0 14px;letter-spacing:.14em;color:var(--ink);}
.footer a{display:block;font-size:13px;color:var(--ink-soft);padding:5px 0;transition:color .25s var(--ease),padding-left .25s var(--ease);letter-spacing:.04em;}
.footer a:hover{color:var(--cinnabar);padding-left:5px;}
.footer .desc{font-size:13px;color:var(--ink-soft);max-width:320px;line-height:1.9;}
.footer .copy{
  margin-top:32px;padding-top:22px;border-top:1px solid var(--line-2);
  font-size:12px;color:var(--ink-faint);text-align:center;letter-spacing:.12em;
}

/* 工具类 */
.center{text-align:center;}
.muted{color:var(--ink-soft);}
.empty{padding:70px 0;text-align:center;color:var(--ink-faint);font-size:14px;letter-spacing:.06em;}

/* ===== 响应式 ===== */
@media(max-width:980px){
  .hero{padding:56px 0 46px;}
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .hero h1{font-size:39px;}
  .shelves{grid-template-columns:repeat(3,1fr);}
  .books{grid-template-columns:repeat(3,1fr);gap:26px 20px;}
  .detail-grid{grid-template-columns:230px 1fr;gap:34px;}
}
@media(max-width:760px){
  .nav-links{display:none;}
  .nav-inner{height:60px;gap:16px;}
  .brand .name{font-size:18px;}
  .shelves{grid-template-columns:repeat(2,1fr);}
  .books{grid-template-columns:repeat(2,1fr);gap:24px 16px;}
  .detail-grid{grid-template-columns:1fr;gap:26px;}
  .detail-cover{position:relative;top:0;max-width:230px;}
  .detail h1{font-size:27px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .hero h1{font-size:31px;line-height:1.38;}
  .hero p.lead{font-size:15.5px;}
  .section{padding:50px 0;}
  .section-head h2{font-size:23px;}
  .wrap{padding:0 18px;}
  .stat{padding-right:22px;margin-right:22px;}
  .stat .num{font-size:24px;}
  .cover{padding:16px 14px;}
  .cover .ttl{font-size:17px;}
  .player .hint{display:none;}
}
@media(max-width:440px){
  .books{grid-template-columns:repeat(2,1fr);gap:20px 14px;}
  .book .bt{font-size:14.5px;}
  .book .oneliner{display:none;}
  .hero-stats{gap:0;}
  .stat{padding-right:18px;margin-right:18px;}
  .stat .num{font-size:21px;}
  .hc-cover{width:74px;}
  .chapter{padding:16px 18px;}
}