/* ============================================================
   CY社区 cysheequ.cn —— 「墨帖广场」主题
   宣纸白 #f6f1e5 · 暖白 #fffdf8 · 墨黑 #211d18 · 群青蓝 #2f7fe0 · 朱砂红 #d23c22
   镇口告示栏英雄 / 牌坊报数 / 六艺墨帖 / 屏风联画
   解签阁面板切换 / 墨友留言簿 / 盖印下载区
   阴影语言（全页唯一，禁止重复）：
   ① 告示栏   16px 18px 0 rgba(33,29,24,.88)      硬偏移·墨
   ② 屏风面板 0 24px 48px -22px rgba(0,0,0,.6)    软投·向下（夜）
   ③ 解签面板 0 18px 36px -18px rgba(33,29,24,.3) 软垫·向下
   ④ 留言簿框 10px 12px 0 rgba(47,127,224,.82)    硬偏移·群青
   ⑤ 大印章   0 0 64px rgba(210,60,34,.5)         朱砂发光·焦点
   内部卡片零阴影，靠描边/色条/印章分层
   ============================================================ */
:root{
  --ink:#211d18;
  --ink2:#2e2822;
  --night:#1a1713;
  --paper:#f6f1e5;
  --paper2:#efe6d0;
  --warm:#fffdf8;
  --bl:#2f7fe0;
  --bl-d:#1f63c4;
  --rd:#d23c22;
  --rd-d:#ab2c16;
  --txt:#332c22;
  --soft:#7a6f5d;
  --line:rgba(33,29,24,.16);
  --kai:"Kaiti SC","STKaiti","KaiTi","STSong","SimSun",serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;color:var(--txt);background:var(--warm);line-height:1.8;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;background:none;border:0}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
[id]{scroll-margin-top:84px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:700;border-radius:10px;border:2px solid transparent;white-space:nowrap;transition:transform .18s,box-shadow .18s,background .18s,border-color .18s}
.btn-seal{background:var(--rd);color:#fff;box-shadow:0 5px 0 var(--rd-d)}
.btn-seal:hover{background:#e04a2e;box-shadow:0 7px 0 var(--rd-d);transform:translateY(-2px)}
.btn-ink{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ink:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px)}
.btn-lg{padding:14px 30px;font-size:16px}
.btn-xl{padding:17px 44px;font-size:18px}
.seal-dot{width:24px;height:24px;border-radius:6px;background:#fff;color:var(--rd);font-style:normal;font-family:var(--kai);font-size:15px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;flex:none;transform:rotate(-4deg)}

/* ---------- 顶栏 ---------- */
.hd{position:sticky;top:0;z-index:80;background:var(--paper);border-bottom:3px solid var(--ink)}
.hd::after{content:"";display:block;height:3px;background:repeating-linear-gradient(90deg,var(--rd) 0 26px,var(--bl) 26px 52px)}
.hd-in{display:flex;align-items:center;gap:28px;height:70px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand img{border-radius:9px;border:2px solid var(--ink);background:#fff}
.brand-t{display:flex;flex-direction:column;line-height:1.25}
.brand-t strong{font-size:19px;color:var(--ink);letter-spacing:2px;font-family:var(--kai)}
.brand-t small{font-size:11px;letter-spacing:1.6px;color:var(--soft)}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{font-size:15px;padding:8px 13px;border-radius:8px;color:var(--txt);transition:color .15s,background .15s}
.nav a:hover{color:var(--rd);background:rgba(210,60,34,.08)}
.nav a.on{color:var(--paper);background:var(--ink);font-weight:700}
.hd-r{display:flex;align-items:center;gap:14px}
.hd-cta{padding:9px 22px;font-size:15px}
.burger{display:none;width:42px;height:42px;border:2px solid var(--ink);border-radius:10px;place-items:center;gap:4px;padding:9px 8px;background:var(--warm)}
.burger span{display:block;width:20px;height:2.5px;background:var(--ink);border-radius:2px}

/* ---------- 英雄区 · 镇口告示栏 ---------- */
.hero{background:radial-gradient(680px 420px at 94% 4%,rgba(47,127,224,.12),transparent 60%),radial-gradient(540px 420px at 0% 100%,rgba(210,60,34,.1),transparent 58%),var(--paper)}
.hero-in{display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center;padding:84px 24px 96px}
.kick{font-size:13px;font-weight:700;letter-spacing:2.4px;color:var(--soft);display:flex;align-items:center;flex-wrap:wrap;gap:10px}
.kick-lab{background:var(--ink);color:var(--paper);letter-spacing:2px;padding:3px 13px;border-radius:6px;font-style:normal;font-family:"Courier New",ui-monospace,monospace;font-weight:700}
.hero h1{font-size:60px;line-height:1.12;letter-spacing:6px;margin:20px 0 8px;color:var(--ink);font-family:var(--kai);font-weight:700}
.hero-slogan{font-size:26px;font-weight:800;line-height:1.5;color:var(--ink);font-family:var(--kai)}
.hero-slogan i{font-style:normal;color:var(--rd);border-bottom:3px solid var(--rd);padding-bottom:2px}
.lead{margin-top:18px;font-size:15.5px;color:var(--soft);max-width:34em}
.hero-acts{display:flex;gap:16px;flex-wrap:wrap;margin-top:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags li{font-size:13px;padding:5px 14px;border:1.5px dashed rgba(33,29,24,.36);border-radius:6px;color:var(--txt);font-family:var(--kai);letter-spacing:1px}
.hero-note{display:flex;align-items:center;gap:9px;margin-top:24px;font-size:13px;color:var(--soft)}
.hero-note .dot{width:9px;height:9px;border-radius:2px;background:var(--bl);flex:none;transform:rotate(45deg);box-shadow:0 0 0 4px rgba(47,127,224,.18)}

/* 告示栏 */
.hero-r{display:flex;justify-content:center}
.nboard{width:100%;max-width:420px;background:linear-gradient(180deg,var(--ink2),var(--ink) 26%);border:2px solid var(--night);border-radius:18px;padding:14px 16px 0;box-shadow:16px 18px 0 rgba(33,29,24,.88)}
.nb-top{display:flex;align-items:center;justify-content:space-between;padding:2px 6px 12px}
.nb-title{font-family:var(--kai);font-size:16px;letter-spacing:3px;color:var(--paper);border-bottom:2px solid var(--rd);padding-bottom:3px}
.nb-nails{display:flex;gap:10px}
.nb-nails i{width:11px;height:11px;border-radius:50%;background:radial-gradient(circle at 34% 30%,#fff,var(--rd) 46%,var(--rd-d));border:1.5px solid var(--night)}
.nb-body{position:relative;background:var(--paper);border:2px solid var(--night);border-radius:10px;padding:22px 16px 20px;background-image:repeating-linear-gradient(0deg,transparent 0 26px,rgba(33,29,24,.045) 26px 27px)}
.nb-main{position:relative;max-width:262px;margin:0 auto;background:#fff;border:2px solid var(--ink);border-radius:8px;padding:10px;transform:rotate(-.6deg)}
.nb-main img{width:100%;height:auto;max-width:236px;margin:0 auto;border-radius:4px;border:1px solid var(--line)}
.nb-tape{position:absolute;top:-11px;left:50%;transform:translateX(-50%) rotate(1.5deg);width:86px;height:22px;background:rgba(47,127,224,.32);border:1px solid rgba(47,127,224,.4);border-radius:2px;z-index:2}
.nb-seal{position:absolute;right:-13px;bottom:-13px;width:42px;height:42px;background:var(--rd);color:#fff;font-family:var(--kai);font-size:22px;font-weight:700;display:flex;align-items:center;justify-content:center;border-radius:8px;transform:rotate(6deg);border:2px solid #fff}
.nb-note{position:absolute;width:104px;background:var(--warm);border:1.5px solid var(--ink);border-radius:6px;padding:12px 10px 10px;text-align:center;z-index:3}
.nb-note b{display:block;font-family:var(--kai);font-size:15px;color:var(--rd);letter-spacing:2px;border-bottom:1.5px dashed var(--line);padding-bottom:4px;margin-bottom:5px}
.nb-note p{font-size:11px;line-height:1.7;color:var(--soft)}
.nb-pin{position:absolute;top:-7px;left:50%;transform:translateX(-50%);width:12px;height:12px;border-radius:50%;background:radial-gradient(circle at 34% 30%,#fff,var(--bl) 46%,var(--bl-d));border:1.5px solid var(--night)}
.nb-n1{left:-20px;top:34px;transform:rotate(-5deg)}
.nb-n2{right:-20px;bottom:52px;transform:rotate(4deg)}
.nb-ft{margin:12px 2px 0;padding:9px 0 11px;border-top:1.5px dashed rgba(246,241,229,.3);text-align:center}
.nb-ft span{font-family:"Courier New",ui-monospace,monospace;font-size:11px;letter-spacing:2px;color:rgba(246,241,229,.68)}

/* ---------- 牌坊报数 · 数字条 ---------- */
.arch{background:var(--bl);border-top:3px solid var(--ink);border-bottom:3px solid var(--ink)}
.arch-in{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:32px 24px}
.ar-i{text-align:center;position:relative}
.ar-i+.ar-i::before{content:"";position:absolute;left:-10px;top:14%;bottom:14%;width:2px;background:repeating-linear-gradient(180deg,rgba(255,255,255,.5) 0 6px,transparent 6px 12px)}
.ar-i b{display:block;font-family:var(--kai);font-size:40px;font-weight:700;color:#fff;line-height:1.2;text-shadow:2px 2px 0 var(--bl-d)}
.ar-i i{font-style:normal;font-size:13.5px;color:rgba(255,255,255,.92);letter-spacing:2px;border-top:2px solid rgba(255,255,255,.5);padding-top:7px;margin-top:7px;display:inline-block}

/* ---------- 区块通用 ---------- */
.sec{padding:88px 0 96px}
.sec-white{background:var(--warm)}
.sec-paper{background:var(--paper)}
.sec-ink{background:radial-gradient(700px 380px at 88% 6%,rgba(47,127,224,.14),transparent 62%),var(--night);color:var(--paper)}
.sec-h{text-align:center;max-width:46em;margin:0 auto 48px}
.sec-h .kick{justify-content:center}
.sec-h h2{font-size:36px;margin:16px 0 12px;color:var(--ink);font-family:var(--kai);font-weight:700;letter-spacing:3px}
.sec-ink .sec-h h2{color:var(--paper)}
.sec-ink .sec-h .kick{color:rgba(246,241,229,.6)}
.sec-p{font-size:15.5px;color:var(--soft)}
.sec-ink .sec-p{color:rgba(246,241,229,.66)}

/* ---------- 六艺墨帖 ---------- */
.arts{display:grid;grid-template-columns:repeat(3,1fr);gap:26px 24px}
.art{position:relative;background:var(--paper);border:2px solid var(--ink);border-radius:10px;padding:26px 22px 22px;overflow:hidden}
.art::before{content:"";position:absolute;top:0;left:0;right:0;height:6px;background:var(--bl)}
.art:nth-child(3n+2)::before{background:var(--rd)}
.art:nth-child(3n)::before{background:var(--ink)}
.art:nth-child(even){transform:translateY(14px)}
.at-no{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:8px;background:var(--rd);color:#fff;font-family:var(--kai);font-size:24px;font-weight:700;transform:rotate(-4deg);border:2px solid var(--ink)}
.art:nth-child(3n+2) .at-no{background:var(--bl)}
.art:nth-child(3n) .at-no{background:var(--ink);color:var(--paper)}
.art h3{font-family:var(--kai);font-size:21px;letter-spacing:3px;color:var(--ink);margin:15px 0 9px}
.art p{font-size:14.5px;color:var(--soft);line-height:1.85}

/* ---------- 屏风联画 ---------- */
.fold{display:flex;justify-content:center;align-items:flex-start;gap:20px;flex-wrap:nowrap}
.fp{width:216px;flex:none;background:var(--paper);border:2px solid var(--ink);border-radius:10px;padding:12px 12px 14px;box-shadow:0 24px 48px -22px rgba(0,0,0,.6)}
.fp-a{transform:rotate(-1.4deg) translateY(10px)}
.fp-b{transform:rotate(1.4deg) translateY(-8px)}
.fp-top{display:flex;align-items:center;gap:9px;border-bottom:2px solid var(--ink);padding-bottom:8px;margin-bottom:11px;font-family:var(--kai);font-size:17px;letter-spacing:2px;color:var(--ink)}
.fp-top i{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:6px;background:var(--rd);color:#fff;font-style:normal;font-size:15px;transform:rotate(-4deg);flex:none}
.fp-b .fp-top i{background:var(--bl)}
.fp-img{display:block;background:#fff;border:1.5px solid var(--line);border-radius:6px;padding:6px}
.fp-img img{width:100%;height:auto;max-width:100%;margin:0 auto;border-radius:3px}
.fp figcaption{text-align:center;font-size:13px;color:var(--soft);padding-top:10px;font-family:var(--kai);letter-spacing:1px}

/* ---------- 解签阁 ---------- */
.qian{max-width:980px;margin:0 auto}
.qian-tube{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.qz{position:relative;background:linear-gradient(180deg,var(--warm),var(--paper2));border:2px solid var(--ink);border-radius:8px;padding:16px 14px 14px;text-align:left;transition:transform .18s,background .18s,border-color .18s}
.qz::before{content:"";position:absolute;top:-2px;left:50%;transform:translateX(-50%);width:34px;height:7px;background:var(--rd);border-radius:0 0 5px 5px;border:2px solid var(--ink);border-top:0}
.qz i{display:block;font-style:normal;font-family:var(--kai);font-size:13px;letter-spacing:2px;color:var(--rd);margin-bottom:4px}
.qz span{font-size:15px;font-weight:700;color:var(--ink);line-height:1.5}
.qz:hover{transform:translateY(-3px)}
.qz.on{background:var(--ink);border-color:var(--ink)}
.qz.on i{color:var(--paper2)}
.qz.on span{color:var(--paper)}
.qz.on::after{content:"";position:absolute;left:50%;bottom:-12px;transform:translateX(-50%);border:7px solid transparent;border-top-color:var(--ink)}
.qian-panels{margin-top:26px;position:relative}
.qp{display:none;position:relative;background:var(--warm);border:2px solid var(--ink);border-left:10px solid var(--bl);border-radius:10px;padding:26px 30px 24px 76px;box-shadow:0 18px 36px -18px rgba(33,29,24,.3)}
.qp.show{display:block;animation:qpin .3s ease}
@keyframes qpin{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.qp-seal{position:absolute;left:22px;top:24px;width:36px;height:36px;background:var(--rd);color:#fff;font-family:var(--kai);font-size:20px;font-weight:700;display:flex;align-items:center;justify-content:center;border-radius:7px;transform:rotate(-5deg)}
.qp p{font-size:15.5px;color:var(--txt);line-height:1.95}

/* ---------- 墨友留言簿 ---------- */
.guest{max-width:1020px;margin:0 auto;background:var(--paper);border:3px solid var(--ink);border-radius:14px;box-shadow:10px 12px 0 rgba(47,127,224,.82);overflow:hidden}
.gb-hd{display:flex;align-items:center;justify-content:space-between;background:var(--ink);padding:13px 24px}
.gb-hd-t{font-family:var(--kai);font-size:17px;letter-spacing:3px;color:var(--paper);border-left:5px solid var(--rd);padding-left:11px}
.gb-hd-e{font-family:"Courier New",ui-monospace,monospace;font-size:11px;letter-spacing:3px;color:rgba(246,241,229,.55)}
.gb-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;padding:28px 26px 30px}
.gb{position:relative;display:flex;gap:15px;background:var(--warm);border:2px solid var(--ink);border-radius:10px;padding:20px 20px 16px}
.gb::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:5px;border-radius:0 4px 4px 0;background:var(--rd)}
.gb:nth-child(3n+2)::before{background:var(--bl)}
.gb:nth-child(3n)::before{background:var(--ink)}
.gb-seal{flex:none;width:42px;height:42px;margin-top:2px;background:var(--rd);color:#fff;font-family:var(--kai);font-size:21px;font-weight:700;display:flex;align-items:center;justify-content:center;border-radius:8px;transform:rotate(-4deg);border:2px solid var(--ink)}
.gb:nth-child(3n+2) .gb-seal{background:var(--bl)}
.gb:nth-child(3n) .gb-seal{background:var(--ink);color:var(--paper)}
.gb-main p{font-size:14.5px;color:var(--txt);line-height:1.9}
.gb-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:11px;border-top:1.5px dashed var(--line);padding-top:9px}
.gb-meta b{font-size:13.5px;color:var(--ink);font-family:var(--kai);letter-spacing:1px}
.gb-meta time{font-size:12.5px;color:var(--soft);font-family:"Courier New",ui-monospace,monospace;white-space:nowrap}

/* ---------- 下载区 · 盖印领帖 ---------- */
.stamp{background:radial-gradient(600px 320px at 50% 0%,rgba(210,60,34,.16),transparent 62%),var(--ink);color:var(--paper);padding:92px 0 96px;text-align:center}
.stamp-in{display:flex;flex-direction:column;align-items:center;gap:18px}
.st-seal{width:108px;height:108px;background:var(--rd);border:3px solid #fff;border-radius:18px;transform:rotate(-5deg);display:flex;align-items:center;justify-content:center;box-shadow:0 0 64px rgba(210,60,34,.5)}
.st-seal i{font-style:normal;font-family:var(--kai);font-size:44px;font-weight:700;color:#fff;letter-spacing:2px}
.stamp h2{font-size:34px;font-family:var(--kai);letter-spacing:4px;color:var(--paper)}
.stamp p{font-size:15.5px;color:rgba(246,241,229,.72);letter-spacing:1px}
.stamp .btn-xl{margin-top:8px}
.stamp small{font-size:13px;color:rgba(246,241,229,.5);letter-spacing:1px}

/* ---------- 页脚 ---------- */
.ft{background:var(--paper);border-top:4px solid var(--rd)}
.ft-in{padding:36px 24px 30px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:13px}
.ft-brand{display:flex;align-items:center;gap:10px}
.ft-brand img{border-radius:8px;border:2px solid var(--ink);background:#fff}
.ft-brand span{font-family:var(--kai);font-size:16px;letter-spacing:2px;color:var(--ink)}
.ft-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 18px}
.ft-nav a{font-size:14px;color:var(--soft);transition:color .15s}
.ft-nav a:hover{color:var(--rd)}
.ft-nav .complaint-link{display:inline-flex;align-items:center;gap:5px}
.ft-icp{font-size:13px;color:var(--soft)}
.ft-copy{font-size:13px;color:var(--ink);letter-spacing:1px}

/* ---------- 返回顶部 ---------- */
.backtop{position:fixed;right:22px;bottom:160px;z-index:70;width:46px;height:46px;border-radius:10px;background:var(--rd);color:#fff;font-size:21px;font-weight:700;border:2px solid var(--ink);opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .25s,transform .25s,visibility .25s}
.backtop.show{opacity:1;visibility:visible;transform:none}
.backtop:hover{background:var(--rd-d)}

/* ---------- 入场 ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .qp.show{animation:none}
  *{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .hero-in{gap:40px}
  .fold{gap:14px}
  .fp{width:200px}
}
@media (max-width:920px){
  .nav{position:fixed;top:73px;right:12px;left:12px;z-index:79;display:none;flex-direction:column;gap:4px;background:var(--paper);border:2px solid var(--ink);border-radius:12px;padding:12px}
  .nav.open{display:flex}
  .nav a{padding:11px 14px}
  .burger{display:grid}
  .hd-cta{display:none}
  .hero-in{grid-template-columns:1fr;padding:60px 24px 72px}
  .hero h1{font-size:46px;text-align:center}
  .hero-slogan{text-align:center}
  .kick{justify-content:center}
  .lead{margin-left:auto;margin-right:auto;text-align:center}
  .hero-acts{justify-content:center}
  .hero-tags{justify-content:center}
  .hero-note{justify-content:center}
  .hero-r{margin-top:10px}
  .arts{grid-template-columns:1fr 1fr;gap:20px}
  .art:nth-child(even){transform:none}
  .fold{flex-wrap:nowrap;justify-content:flex-start;overflow-x:auto;scroll-snap-type:x mandatory;padding:16px 24px 26px;margin:0 -24px;-webkit-overflow-scrolling:touch}
  .fp{width:236px;scroll-snap-align:center}
  .fp-a,.fp-b{transform:none}
  .qian-tube{grid-template-columns:1fr 1fr}
  .gb-grid{grid-template-columns:1fr}
  .sec{padding:64px 0 72px}
  .sec-h h2{font-size:29px}
  [id]{scroll-margin-top:72px}
}
@media (max-width:560px){
  .hero h1{font-size:38px;letter-spacing:4px}
  .hero-slogan{font-size:21px}
  .hero-acts .btn{width:100%}
  .nboard{max-width:100%}
  .nb-note{display:none}
  .arch-in{grid-template-columns:1fr 1fr;gap:24px 14px;padding:26px 24px}
  .ar-i b{font-size:31px}
  .ar-i+.ar-i::before{display:none}
  .arts{grid-template-columns:1fr}
  .qian-tube{grid-template-columns:1fr}
  .qz.on::after{display:none}
  .qp{padding:24px 20px 20px 20px;border-left-width:6px}
  .qp-seal{position:static;margin-bottom:12px}
  .gb-grid{padding:20px 16px 22px;gap:16px}
  .gb-meta{flex-direction:column;align-items:flex-start;gap:3px}
  .st-seal{width:88px;height:88px}
  .st-seal i{font-size:34px}
  .stamp h2{font-size:26px}
  .backtop{bottom:150px;right:16px;width:42px;height:42px}
}