/* ============================================================
   jmcomica.cn · jmcomic 深夜书报亭
   骨架A：厚刊头导航(不吸顶) + 号外横条 + 左文案右扇形hero
         + 侧轨编号长卷 + 收据式取书单 + 横条公告FAQ + 借书卡留言
   配色：墨黑褐 #140c08 / 橘红 #ff5a2b(logo主色) / 暖纸白 #f7ecdc / 天蓝 #6cb6dc
   ============================================================ */
:root{
  --ink:#140c08;
  --ink2:#241510;
  --paper:#f7ecdc;
  --paper2:#efe0c8;
  --red:#ff5a2b;
  --red-deep:#c93f18;
  --amber:#ffa14e;
  --blue:#6cb6dc;
  --muted:#8d7f70;
  --line:rgba(20,12,8,.14);
  --serif:'Noto Serif SC',serif;
  --sans:'Noto Sans SC',sans-serif;
  --en:'Playfair Display',Georgia,serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--paper);color:var(--ink);line-height:1.75;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
ul{list-style:none}
button{font-family:inherit;border:0;background:none;cursor:pointer}

/* ---------- 厚刊头导航（不吸顶） ---------- */
.masthead{background:var(--ink);border-bottom:4px solid var(--red)}
.mast-inner{max-width:1240px;margin:0 auto;padding:22px 28px;display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{width:46px;height:46px;border-radius:10px;box-shadow:0 0 0 2px rgba(255,90,43,.55)}
.brand-txt b{display:block;font-family:var(--en);font-size:22px;letter-spacing:.14em;color:var(--paper);line-height:1.1}
.brand-txt i{display:block;font-style:normal;font-size:12px;letter-spacing:.42em;color:var(--amber);margin-top:2px}
.mast-nav{display:flex;gap:26px;margin-left:auto}
.mast-nav a{color:rgba(247,236,220,.82);font-size:15px;padding:6px 2px;border-bottom:2px solid transparent;transition:.25s}
.mast-nav a:hover{color:var(--red);border-bottom-color:var(--red)}
.mast-cta{background:var(--red);color:#fff;font-weight:700;font-size:15px;padding:11px 24px;border-radius:999px;box-shadow:0 6px 18px rgba(255,90,43,.35);transition:.25s;flex:none}
.mast-cta:hover{background:var(--red-deep);transform:translateY(-2px)}
.mast-toggle{display:none;flex-direction:column;gap:5px;padding:8px}
.mast-toggle span{width:24px;height:2px;background:var(--paper);border-radius:2px;transition:.3s}
.m-menu{display:none;background:var(--ink);border-bottom:1px solid rgba(255,255,255,.08)}
.m-menu a{display:block;padding:15px 26px;color:rgba(247,236,220,.9);border-bottom:1px solid rgba(255,255,255,.06)}
.m-menu .m-cta{color:var(--red);font-weight:700;border-bottom:0}

/* ---------- 今日号外横条 ---------- */
.extra-bar{background:var(--red);color:#fff}
.extra-inner{max-width:1240px;margin:0 auto;padding:9px 28px;display:flex;align-items:center;gap:16px;overflow:hidden}
.extra-bar b{font-family:var(--serif);font-size:14px;letter-spacing:.3em;flex:none;border-right:1px solid rgba(255,255,255,.4);padding-right:16px}
.extra-bar span{font-size:13px;letter-spacing:.08em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;opacity:.94}

/* ---------- hero ---------- */
.hero{max-width:1240px;margin:0 auto;padding:74px 28px 40px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 460px;gap:56px;align-items:center}
.hero-kicker{font-family:var(--en);font-size:14px;letter-spacing:.34em;color:var(--red-deep);margin-bottom:18px}
.hero-title{font-family:var(--serif)}
.hero-title .t-en{display:block;font-family:var(--en);font-weight:900;font-size:clamp(52px,6.4vw,84px);line-height:1.02;letter-spacing:.02em;color:var(--ink)}
.hero-title .t-cn{display:block;margin-top:14px;font-size:clamp(16px,1.8vw,20px);font-weight:700;letter-spacing:.22em;color:var(--red-deep)}
.hero-slogan{margin-top:22px;font-family:var(--serif);font-size:clamp(19px,2.2vw,25px);font-weight:700;color:var(--ink)}
.hero-slogan::before{content:"";display:inline-block;width:34px;height:4px;background:var(--red);margin-right:14px;vertical-align:middle;border-radius:2px}
.hero-lead{margin-top:14px;font-size:15.5px;color:#4d4238;max-width:56ch}
.hero-cta{margin-top:30px;display:flex;gap:16px;flex-wrap:wrap}
.btn-main{display:inline-block;background:var(--red);color:#fff;font-weight:700;font-size:16px;padding:15px 34px;border-radius:999px;box-shadow:0 10px 24px rgba(255,90,43,.34);transition:.25s}
.btn-main:hover{background:var(--red-deep);transform:translateY(-2px)}
.btn-ghost{display:inline-block;border:2px solid var(--ink);color:var(--ink);font-weight:700;font-size:15px;padding:13px 28px;border-radius:999px;transition:.25s}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.hero-note{margin-top:14px;font-size:12.5px;color:var(--muted);letter-spacing:.06em}

/* 扇形三图：显示宽 340/240/220 ≤ 源宽 450/300/270 */
.hero-fan{position:relative;height:520px}
.fan{position:absolute;border-radius:14px;overflow:hidden;background:var(--ink);box-shadow:0 24px 50px rgba(20,12,8,.32);border:4px solid #fff}
.fan img{width:100%;height:100%;object-fit:cover;object-position:top}
.fan::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(20,12,8,.2);pointer-events:none}
.f1{width:340px;height:508px;left:26px;top:0;transform:rotate(-6deg);z-index:3}
.f2{width:240px;height:400px;left:236px;top:44px;transform:rotate(2deg);z-index:2}
.f3{width:220px;height:392px;left:296px;top:112px;transform:rotate(7deg);z-index:1}
.f2::after,.f3::after{background:rgba(20,12,8,.08)}

/* 号外数据条 */
.extra-stats{margin-top:52px;background:var(--ink);border-radius:16px;display:flex;justify-content:space-around;padding:26px 20px;box-shadow:0 16px 36px rgba(20,12,8,.22)}
.extra-stats li{text-align:center;color:var(--paper)}
.extra-stats span,.extra-stats b{display:block;font-family:var(--en);font-size:34px;font-weight:900;color:var(--amber);line-height:1.15}
.extra-stats i{font-style:normal;font-size:13px;letter-spacing:.18em;color:rgba(247,236,220,.75)}

/* ---------- 分节骨架：侧轨编号 ---------- */
.sec{max-width:1240px;margin:0 auto;padding:86px 28px;position:relative}
.sec.alt{background:var(--paper2);max-width:none;padding-left:calc(max(28px,(100vw - 1240px)/2 + 28px));padding-right:calc(max(28px,(100vw - 1240px)/2 + 28px))}
.rail-no{position:absolute;left:6px;top:96px;font-family:var(--en);font-weight:900;font-size:88px;line-height:1;color:transparent;-webkit-text-stroke:2px rgba(201,63,24,.34);writing-mode:vertical-rl;letter-spacing:.1em;user-select:none}
.sec-head{margin-bottom:40px}
.sec-en{font-family:var(--en);font-size:13px;letter-spacing:.32em;color:var(--red-deep);margin-bottom:8px}
.sec-head h2{font-family:var(--serif);font-size:clamp(28px,3.4vw,40px);font-weight:900;letter-spacing:.06em}
.sec-head h2::after{content:"";display:block;width:56px;height:4px;background:var(--red);margin-top:12px;border-radius:2px}
.sec-sub{margin-top:10px;font-size:14px;color:var(--muted);letter-spacing:.1em}

/* ---------- 01 架上好书：横滑书架 ---------- */
.shelf-wrap{position:relative}
.shelf{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding:10px 4px 26px;scrollbar-width:thin;scrollbar-color:var(--red) var(--paper2)}
.shelf::-webkit-scrollbar{height:6px}
.shelf::-webkit-scrollbar-thumb{background:var(--red);border-radius:3px}
.shelf::-webkit-scrollbar-track{background:var(--paper2);border-radius:3px}
.s-card{flex:0 0 auto;width:234px;scroll-snap-align:start}
.s-ph{height:400px;border-radius:12px;overflow:hidden;border:3px solid #fff;box-shadow:0 14px 30px rgba(20,12,8,.18);background:var(--ink)}
.s-ph img{width:100%;height:100%;object-fit:cover;object-position:top;transition:.4s}
.s-card:hover .s-ph img{transform:scale(1.04)}
.s-card figcaption{margin-top:12px;font-size:13.5px;color:#4d4238;text-align:center}
.s-card figcaption b{color:var(--red-deep);margin-right:8px;font-family:var(--en);letter-spacing:.06em}
.shelf-btn{position:absolute;top:196px;width:46px;height:46px;border-radius:50%;background:var(--ink);color:var(--paper);font-size:22px;line-height:1;z-index:5;box-shadow:0 8px 20px rgba(20,12,8,.3);transition:.25s}
.shelf-btn:hover{background:var(--red)}
.shelf-btn.prev{left:-14px}
.shelf-btn.next{right:-14px}

/* ---------- 02 亭长说：四栏目卡 ---------- */
.cols{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.col{background:var(--paper);border:1px solid var(--line);border-top:5px solid var(--red);padding:26px 24px 28px;border-radius:4px;transition:.3s;position:relative}
.col:nth-child(2){border-top-color:var(--amber)}
.col:nth-child(3){border-top-color:var(--blue)}
.col:nth-child(4){border-top-color:var(--ink)}
.col:hover{transform:translateY(-6px);box-shadow:0 18px 36px rgba(20,12,8,.14)}
.col-no{font-family:var(--serif);font-size:13px;font-weight:700;letter-spacing:.3em;color:var(--red-deep);margin-bottom:12px}
.col h3{font-family:var(--serif);font-size:20px;font-weight:900;margin-bottom:10px}
.col p{font-size:14px;color:#5b5045}

/* ---------- 03 取书单（收据式） ---------- */
.slip{max-width:900px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:6px;display:grid;grid-template-columns:1fr 44px 1fr;align-items:stretch;box-shadow:0 22px 44px rgba(20,12,8,.14);position:relative}
.slip::before,.slip::after{content:"";position:absolute;width:34px;height:34px;background:var(--paper);border:1px solid var(--line);border-radius:50%;top:50%;transform:translateY(-50%)}
.slip::before{left:-17px;clip-path:inset(0 0 0 50%)}
.slip::after{right:-17px;clip-path:inset(0 50% 0 0)}
.slip-left{padding:36px 34px}
.slip-title{font-family:var(--serif);font-weight:900;font-size:18px;letter-spacing:.2em;color:var(--red-deep);padding-bottom:16px;border-bottom:2px dashed var(--line);margin-bottom:18px}
.slip-spec li{display:flex;gap:18px;padding:7px 0;font-size:14.5px}
.slip-spec span{flex:none;color:var(--muted);letter-spacing:.2em}
.slip-spec b{font-weight:700}
.slip-hole{border-left:2px dashed var(--line);position:relative;margin:18px 0}
.slip-right{padding:36px 34px;display:flex;flex-direction:column;justify-content:center;gap:14px}
.slip-right .btn-main{text-align:center}
.slip-right .btn-ghost{text-align:center}
.slip-note{font-size:12px;color:var(--muted);text-align:center;line-height:1.7}

/* ---------- 04 亭长答疑：横条公告单 ---------- */
.bulletin{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.notice{background:#fff;border:1px solid var(--line);border-left:5px solid var(--red);border-radius:4px;overflow:hidden;transition:.3s}
.notice[open]{box-shadow:0 12px 28px rgba(20,12,8,.1)}
.notice summary{display:flex;align-items:center;gap:18px;padding:18px 24px;cursor:pointer;list-style:none;user-select:none}
.notice summary::-webkit-details-marker{display:none}
.notice summary i{font-style:normal;font-family:var(--serif);font-size:12.5px;font-weight:700;letter-spacing:.24em;color:#fff;background:var(--red);padding:4px 12px;border-radius:3px;flex:none}
.notice summary b{font-size:16px;font-weight:700}
.notice summary::after{content:"+";margin-left:auto;font-family:var(--en);font-size:24px;color:var(--red-deep);transition:.3s;flex:none}
.notice[open] summary::after{transform:rotate(45deg)}
.notice p{padding:0 24px 20px 88px;font-size:14.5px;color:#5b5045}

/* ---------- 05 读者留言：借书卡 ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.note{background:#fff;border:1px solid var(--line);border-radius:6px;padding:22px 22px 20px;position:relative;transition:.3s}
.note::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--red);border-radius:6px 0 0 6px}
.note:nth-child(even)::before{background:var(--blue)}
.note:hover{transform:translateY(-5px);box-shadow:0 16px 32px rgba(20,12,8,.12)}
.note-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.note-top img{width:40px;height:40px;border-radius:50%;border:2px solid var(--red)}
.note:nth-child(even) .note-top img{border-color:var(--blue)}
.note-top b{display:block;font-size:15px;line-height:1.3}
.note-top time{font-size:12px;color:var(--muted);font-family:var(--en);letter-spacing:.06em}
.note p{font-size:14px;color:#4d4238;margin-bottom:12px}
.note-tag{display:inline-block;font-size:12px;color:var(--red-deep);border:1px solid rgba(201,63,24,.4);padding:2px 12px;border-radius:999px;letter-spacing:.08em}
.note:nth-child(even) .note-tag{color:#2c6f93;border-color:rgba(108,182,220,.6)}

/* ---------- footer ---------- */
.foot{background:var(--ink);color:rgba(247,236,220,.8);margin-top:30px}
.foot-inner{max-width:1240px;margin:0 auto;padding:56px 28px 34px}
.foot-brand{display:flex;align-items:center;gap:14px;padding-bottom:26px;border-bottom:1px solid rgba(255,255,255,.1)}
.foot-brand img{width:44px;height:44px;border-radius:10px}
.foot-brand b{display:block;color:var(--paper);font-family:var(--serif);font-size:17px;letter-spacing:.1em}
.foot-brand span{font-size:12.5px;color:var(--amber);letter-spacing:.14em}
.foot-nav{display:flex;flex-wrap:wrap;gap:26px;padding:24px 0;font-size:14px}
.foot-nav a{color:rgba(247,236,220,.75);transition:.25s}
.foot-nav a:hover{color:var(--red)}
.foot-tip{font-size:12.5px;color:rgba(247,236,220,.55);letter-spacing:.06em}
.foot-copy{margin-top:8px;font-size:12px;color:rgba(247,236,220,.4)}

/* ---------- 悬浮投诉 & 返回顶部 ---------- */
.interaction-complaint-button{position:fixed;right:24px;bottom:110px;z-index:900;display:flex;flex-direction:column;align-items:center;gap:6px;background:var(--ink);color:var(--paper);font-size:12px;padding:12px 10px;border-radius:12px;box-shadow:0 10px 24px rgba(20,12,8,.35);border:1px solid rgba(255,90,43,.5)}
.interaction-complaint-button img{width:20px;height:20px}
.interaction-complaint-button:hover{background:var(--red)}
.back-top{position:fixed;right:24px;bottom:40px;z-index:900;width:44px;height:44px;border-radius:50%;background:var(--red);color:#fff;font-family:var(--serif);font-weight:900;font-size:15px;box-shadow:0 10px 24px rgba(255,90,43,.4);opacity:0;pointer-events:none;transform:translateY(14px);transition:.3s}
.back-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}

/* ---------- 滚动显现 ---------- */
.rev{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.rev.in{opacity:1;transform:none}

/* ---------- 移动端 ≤900：文案在上、图在下 ---------- */
@media (max-width:900px){
  .mast-inner{padding:16px 18px;gap:16px}
  .mast-nav{display:none}
  .mast-cta{margin-left:auto;padding:9px 18px;font-size:14px}
  .mast-toggle{display:flex;margin-left:8px}
  .m-menu.open{display:block}
  .extra-inner{padding:8px 18px}
  .extra-bar b{letter-spacing:.14em;padding-right:10px}
  .hero{padding:44px 18px 30px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-fan{height:auto;display:flex;justify-content:center;align-items:flex-end;flex-wrap:wrap;gap:14px;padding-top:8px}
  .fan{position:static;transform:none !important}
  .f1{width:250px;height:374px}
  .f2,.f3{display:none}
  .extra-stats{margin-top:32px;padding:20px 14px}
  .extra-stats span,.extra-stats b{font-size:26px}
  .sec{padding:60px 18px}
  .sec.alt{padding-left:18px;padding-right:18px}
  .rail-no{display:none}
  .shelf-btn{display:none}
  .s-card{width:200px}
  .s-ph{height:340px}
  .cols{grid-template-columns:1fr 1fr;gap:16px}
  .slip{grid-template-columns:1fr;max-width:none}
  .slip-hole{display:none}
  .slip-left,.slip-right{padding:26px 22px}
  .cards{grid-template-columns:1fr}
  .notice p{padding-left:24px}
  .interaction-complaint-button{right:14px;bottom:96px}
  .back-top{right:16px;bottom:32px}
}
@media (max-width:520px){
  .cols{grid-template-columns:1fr}
  .hero-cta .btn-main,.hero-cta .btn-ghost{width:100%;text-align:center}
}