/* ============================================================
   喵盒社区 mhsqcafe.cn —— 「猫咪盒子集市」主题
   白 #ffffff · 云蓝 #f2f5ff · 墨黑 #1b1f2a · 盒蓝 #3b5bdb · 领巾红 #e63946
   开箱货架 + 七层货架 + 陈列卡片 + 社区玩法 + 竖排橱窗 + 旅程三站 + FAQ卡片阵 + 时间线
   阴影语言：每个大区块外容器仅一组且全页参数唯一；内部卡片零阴影靠细线分层
   ============================================================ */
:root{
  --ink:#1b1f2a;
  --ink2:#232939;
  --ink3:#2e3650;
  --blu:#3b5bdb;
  --blu-d:#2f4bc0;
  --blu-l:#7a94f0;
  --red:#e63946;
  --red-d:#c8273a;
  --cloud:#f2f5ff;
  --txt:#232a38;
  --line:rgba(27,31,42,.13);
  --line-d:rgba(255,255,255,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;color:var(--txt);background:#fff;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}
.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;font-weight:700;border-radius:22px;transition:transform .18s,box-shadow .18s,background .18s;white-space:nowrap;border:2px solid transparent}
.btn:hover{transform:translateY(-2px)}
.btn-blu{background:var(--blu);color:#fff}
.btn-blu:hover{background:var(--blu-l)}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{background:var(--ink3)}
.btn-lg{padding:13px 30px;font-size:16px}
.btn-xl{padding:16px 44px;font-size:18px}

/* ---------- 头部 ---------- */
.hd{position:sticky;top:0;z-index:60;background:rgba(27,31,42,.97);backdrop-filter:blur(8px);border-bottom:3px solid var(--blu)}
.hd-in{display:flex;align-items:center;gap:22px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:#fff}
.brand img{border-radius:12px;background:#fff}
.brand-t{display:flex;flex-direction:column;line-height:1.2}
.brand-t strong{font-size:18px;letter-spacing:1px}
.brand-t small{font-size:10px;letter-spacing:2px;color:rgba(255,255,255,.52)}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{padding:8px 11px;font-size:14px;color:rgba(255,255,255,.76);border-bottom:2px solid transparent}
.nav a:hover{color:#fff}
.nav a.on{color:var(--blu-l);border-bottom-color:var(--blu-l)}
.hd-cta{padding:9px 24px;font-size:14px;box-shadow:0 3px 0 rgba(0,0,0,.3)}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;margin-left:12px;padding:6px}
.burger span{width:24px;height:2px;background:#fff;transition:.25s}

/* ---------- 区块通用 ---------- */
.sec{padding:80px 0}
.sec-white{background:#fff}
.sec-cloud{background:var(--cloud)}
.sec-ink{background:var(--ink);color:#f5f7ff;border-top:4px solid var(--blu)}
.sec-h{max-width:740px;margin-bottom:40px}
.kick{font-size:12px;letter-spacing:3px;font-weight:700;color:var(--blu-d);margin-bottom:12px;display:flex;align-items:center;gap:10px;text-transform:uppercase}
.sec-ink .kick{color:#ff8b95}
.kick-lab{background:var(--red);color:#fff;font-style:normal;font-size:11px;letter-spacing:2px;padding:3px 10px;border-radius:20px}
.sec-h h2{font-size:31px;line-height:1.35;letter-spacing:.5px;color:var(--ink)}
.sec-ink .sec-h h2{color:#fff}
.sec-p{margin-top:10px;color:#5a6478;font-size:15.5px}
.sec-ink .sec-p{color:rgba(245,247,255,.66)}

/* ---------- 英雄区 · 开箱货架 ---------- */
.hero{background:radial-gradient(560px 380px at 88% 10%,rgba(230,57,70,.09),transparent 60%),radial-gradient(680px 480px at 2% 96%,rgba(59,91,219,.12),transparent 62%),linear-gradient(180deg,#eef1ff 0%,#f7f9ff 70%,#fff 100%);padding:70px 0;border-bottom:4px solid var(--blu);position:relative;overflow:hidden}
.hero-in{display:grid;grid-template-columns:1.04fr .96fr;gap:52px;align-items:center}
.hero h1{font-size:60px;line-height:1.08;letter-spacing:5px;color:var(--ink);margin:16px 0 14px;position:relative;display:inline-block}
.hero h1::after{content:"";position:absolute;left:2px;bottom:-7px;width:64px;height:6px;background:var(--red);border-radius:3px}
.hero-slogan{font-size:22px;font-weight:700;color:var(--ink);margin-bottom:18px}
.hero-slogan i{font-style:normal;color:var(--blu-d)}
.lead{color:#4b5568;font-size:15.5px;max-width:560px}
.hero-acts{display:flex;gap:14px;margin:26px 0 18px;flex-wrap:wrap}
.hero-acts .btn-blu{box-shadow:0 14px 32px rgba(59,91,219,.36)}
.hero-acts .btn-ink{box-shadow:0 10px 22px rgba(27,31,42,.22)}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:16px}
.hero-tags li{font-size:13px;padding:4px 14px;border:1px solid rgba(230,57,70,.45);border-radius:20px;color:var(--red-d);background:rgba(255,255,255,.7)}
.hero-note{font-size:13px;color:#7d8698;display:flex;align-items:center;gap:8px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--red);box-shadow:0 0 0 4px rgba(230,57,70,.15);flex:0 0 auto}

/* 开箱货架 */
.mbox{position:relative;height:512px;border-radius:26px;background:linear-gradient(165deg,#e9edff 0%,#f6f8ff 100%);border:2px dashed rgba(59,91,219,.45);box-shadow:0 30px 58px rgba(27,31,42,.15);overflow:hidden}
.mb-flap{position:absolute;top:0;width:51%;height:64px;background:var(--blu);opacity:.92;z-index:2}
.mb-fl{left:0;transform:skewY(-4deg);transform-origin:top left;border-bottom-right-radius:18px}
.mb-fr{right:0;transform:skewY(4deg);transform-origin:top right;border-bottom-left-radius:18px;background:var(--blu-d)}
.mb-main{position:absolute;left:50%;top:54%;transform:translate(-55%,-50%);width:236px;border:3px solid var(--ink);border-radius:18px;overflow:hidden;background:#fff;z-index:3}
.mb-main img{width:100%;height:auto}
.mb-mini{position:absolute;right:5%;bottom:8%;width:118px;border:3px solid var(--red);border-radius:14px;overflow:hidden;background:#fff;transform:rotate(6deg);z-index:4}
.mb-mini img{width:100%;height:auto}
.mb-stamp{position:absolute;font-size:12.5px;font-weight:800;padding:8px 15px;border-radius:20px;z-index:5}
.mb-s1{left:5%;top:15%;background:var(--red);color:#fff;transform:rotate(-5deg)}
.mb-s2{right:6%;top:29%;background:var(--ink);color:#fff;transform:rotate(3deg)}
.mb-s2 b{color:var(--blu-l);font-size:16px}
.mb-fish{position:absolute;left:6%;bottom:6%;font-size:11px;font-weight:800;letter-spacing:3px;color:rgba(27,31,42,.38);z-index:5}

/* ---------- 七大货架 ---------- */
.shelf{display:grid;grid-template-columns:1.25fr 1fr 1fr;grid-auto-rows:minmax(148px,auto);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.sh{background:#fff;padding:24px 22px;position:relative;transition:background .2s}
.sh:hover{background:#f2f5ff}
.sh b{display:block;font-size:16.5px;color:var(--ink);margin-bottom:8px}
.sh p{font-size:13.6px;color:#5a6478;line-height:1.7}
.sh-big{grid-row:span 2;background:linear-gradient(160deg,#fff 0%,#eef1ff 100%);padding:30px 26px}
.sh-big b{font-size:21px}
.sh-big p{font-size:14.5px;max-width:92%}
.sh-tag{position:absolute;top:16px;right:18px;font-size:11px;font-weight:800;color:#fff;background:var(--red);padding:4px 11px;border-radius:14px}
.sh-num{display:inline-block;margin-top:16px;font-size:12px;font-weight:700;color:var(--blu-d);border-left:3px solid var(--blu);padding-left:10px}
.sh:not(.sh-big)::before{content:"";position:absolute;left:22px;top:22px;width:8px;height:8px;border-radius:50%;background:var(--blu);opacity:.55}
.sh:not(.sh-big) b{padding-left:18px}

/* ---------- 今日上架 · 陈列卡片 ---------- */
.fresh{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.fr{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;position:relative;transition:transform .2s,border-color .2s}
.fr:hover{transform:translateY(-3px);border-color:var(--blu)}
.fr-badge{position:absolute;top:-9px;left:18px;font-size:11px;font-weight:800;color:#fff;background:var(--red);padding:3px 11px;border-radius:12px}
.fr b{display:block;font-size:17px;color:var(--ink);margin-bottom:7px}
.fr p{font-size:13.6px;color:#5a6478;line-height:1.7;margin-bottom:14px}
.fr-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12px;color:#7d8698}
.fr-meta i{font-style:normal;margin-left:auto;color:var(--blu-d);background:var(--cloud);border-radius:12px;padding:3px 10px;font-weight:700}

/* ---------- 数字绸带 ---------- */
.ribbon{background:var(--blu);padding:30px 0;box-shadow:inset 0 -5px 0 rgba(27,31,42,.22)}
.ribbon-in{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.rb-i{text-align:center;color:#fff;border-right:1px dashed rgba(255,255,255,.4)}
.rb-i:last-child{border-right:0}
.rb-i b{font-size:34px;font-weight:800;line-height:1.1}
.rb-i i{font-style:normal;font-size:14px;margin-left:2px}
.rb-i span{display:block;font-size:12.5px;color:rgba(255,255,255,.85);margin-top:4px}

/* ---------- 社区玩法 ---------- */
.play{display:grid;grid-template-columns:1.2fr .8fr;gap:26px}
.pl-left{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.pl{display:flex;gap:14px;background:var(--ink2);border:1px solid var(--line-d);border-radius:16px;padding:20px}
.pl-ico{flex:0 0 auto;width:42px;height:42px;display:flex;align-items:center;justify-content:center;background:var(--blu);color:#fff;font-size:15px;font-weight:800;border-radius:50%}
.pl:nth-child(2) .pl-ico{background:var(--red)}
.pl:nth-child(3) .pl-ico{background:var(--red)}
.pl b{display:block;font-size:15.5px;color:#fff;margin-bottom:5px}
.pl p{font-size:13px;color:rgba(245,247,255,.62);line-height:1.7}
.pl-right{background:var(--ink2);border:1px solid var(--line-d);border-top:5px solid var(--red);border-radius:16px;padding:24px 26px}
.pl-right>b{display:block;font-size:17px;color:#fff;margin-bottom:14px;letter-spacing:1px}
.pl-right li{font-size:14px;color:rgba(245,247,255,.75);padding:9px 0 9px 18px;border-bottom:1px dashed rgba(255,255,255,.14);position:relative}
.pl-right li:last-child{border-bottom:0}
.pl-right li::before{content:"";position:absolute;left:0;top:18px;width:7px;height:7px;border-radius:50%;background:var(--blu-l)}

/* ---------- 应用画面 · 竖排橱窗 ---------- */
.window{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.wd{text-align:center}
.wd-f{border:2px solid var(--ink);border-radius:20px;padding:14px;background:linear-gradient(170deg,#eef1ff, #fff);display:flex;justify-content:center}
.wd:nth-child(2n) .wd-f{border-color:var(--blu)}
.wd-f img{width:100%;max-width:175px;height:auto;border-radius:12px}
.wd figcaption{margin-top:12px;font-size:13px;font-weight:700;color:var(--ink)}

/* ---------- 开启旅程 · 三站路牌 ---------- */
.journey{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;position:relative}
.journey::before{content:"";position:absolute;left:6%;right:6%;top:34px;height:3px;background:repeating-linear-gradient(90deg,var(--blu) 0 14px,transparent 14px 26px);opacity:.5}
.jn{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 22px;position:relative;z-index:1;text-align:center}
.jn-no{display:inline-block;font-size:12px;font-weight:800;letter-spacing:2px;color:#fff;background:var(--blu);padding:6px 14px;border-radius:16px;margin-bottom:14px}
.jn-mid .jn-no{background:var(--red)}
.jn b{display:block;font-size:17.5px;color:var(--ink);margin-bottom:8px}
.jn p{font-size:14px;color:#5a6478;line-height:1.75}

/* ---------- FAQ 卡片阵 ---------- */
.faqgrid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.fg{background:#fff;border:1px solid var(--line);border-left:5px solid var(--blu);border-radius:14px;padding:22px 24px;box-shadow:0 18px 36px rgba(27,31,42,.06)}
.fg:nth-child(3n){border-left-color:var(--red)}
.fg h3{font-size:16.5px;color:var(--ink);margin-bottom:10px;display:flex;align-items:center;gap:10px}
.fg h3 span{flex:0 0 auto;font-size:12px;font-weight:800;color:#fff;background:var(--ink);width:26px;height:26px;display:flex;align-items:center;justify-content:center;border-radius:50%}
.fg p{font-size:14px;color:#4b5568;line-height:1.85}

/* ---------- 猫友留言 · 时间线 ---------- */
.timeline{max-width:820px;position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:3px;background:linear-gradient(180deg,var(--blu),var(--red));border-radius:2px;opacity:.5}
.tl{position:relative;margin-bottom:16px}
.tl-dot{position:absolute;left:-26px;top:22px;width:15px;height:15px;border-radius:50%;background:#fff;border:4px solid var(--blu)}
.tl:nth-child(2n) .tl-dot{border-color:var(--red)}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 22px}
.tl-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.tl-head b{font-size:15px;color:var(--ink)}
.tl-star{font-size:12px;color:var(--red);letter-spacing:2px}
.tl-card p{font-size:14px;color:#4b5568;line-height:1.8;margin-bottom:10px}
.tl-time{font-size:12px;color:#9aa3b2}

/* ---------- 下载 · 开盒领取处 ---------- */
.sec-get{padding:84px 0;background:linear-gradient(180deg,#fff 0%,#eef1ff 100%);border-top:4px solid var(--blu)}
.gt-box{position:relative;max-width:560px;margin:0 auto;border-radius:24px;background:var(--ink);padding:6px;box-shadow:0 26px 52px rgba(59,91,219,.3)}
.gt-ear{position:absolute;top:-13px;width:34px;height:34px;background:var(--ink);border-radius:8px;transform:rotate(45deg)}
.gt-el{left:16%}
.gt-er{right:16%}
.gt-card{background:#fff;border-radius:18px;padding:40px 36px 32px;text-align:center}
.gt-logo img{margin:0 auto 14px;border-radius:16px;border:3px solid var(--blu)}
.gt-name{display:block;font-size:26px;color:var(--ink);letter-spacing:2px;margin-bottom:6px}
.gt-sub{font-size:15px;color:#5a6478;margin-bottom:20px}
.gt-rows{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-bottom:24px}
.gt-rows span{border:1px solid var(--line);border-radius:14px;padding:8px 14px;font-size:12.5px}
.gt-rows i{font-style:normal;color:#7d8698;margin-right:6px}
.gt-rows b{color:var(--ink)}
.gt-btn{width:100%;box-shadow:0 16px 34px rgba(59,91,219,.4)}
.gt-note{margin-top:14px;font-size:12.5px;color:#7d8698}

/* ---------- 页脚 ---------- */
.ft{background:var(--ink);color:rgba(255,255,255,.72);border-top:4px solid var(--red)}
.ft-in{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:30px 24px 22px;flex-wrap:wrap}
.ft .brand img{border-radius:10px}
.ft-links{display:flex;gap:20px}
.ft-links a{font-size:14px;color:rgba(255,255,255,.72)}
.ft-links a:hover{color:var(--blu-l)}
.ft-icp{padding:0 24px 8px;font-size:13px}
.ft-icp a{color:rgba(255,255,255,.5)}
.ft-icp a:hover{color:var(--blu-l)}
.ft-c{padding:0 24px 26px;font-size:13px;color:rgba(255,255,255,.45)}

/* ---------- 返回顶部 / 入场 ---------- */
.backtop{position:fixed;right:24px;bottom:24px;z-index:70;width:44px;height:44px;border:0;border-radius:50%;background:var(--blu);color:#fff;font-size:20px;line-height:1;opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;transform:translateY(8px)}
.backtop.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.backtop:hover{background:var(--red)}
.rv{opacity:0;transform:translateY(22px);transition:opacity .55s ease,transform .55s ease}
.rv.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:960px){
  [id]{scroll-margin-top:72px}
  .nav{position:fixed;top:64px;right:0;left:0;background:rgba(27,31,42,.98);flex-direction:column;padding:10px 20px 16px;gap:2px;display:none;border-bottom:3px solid var(--blu)}
  .nav.open{display:flex}
  .nav a{padding:10px 6px;font-size:15px}
  .burger{display:flex}
  .hd-cta{margin-left:auto}
  .hero{padding:46px 0}
  .hero-in{grid-template-columns:1fr;gap:34px}
  .hero h1{font-size:42px;letter-spacing:2px}
  .mbox{height:452px;max-width:420px;margin:0 auto;width:100%}
  .mb-main{width:200px}
  .mb-mini{width:100px}
  .sec{padding:56px 0}
  .sec-h h2{font-size:25px}
  .shelf{grid-template-columns:1fr 1fr}
  .sh-big{grid-column:span 2;grid-row:auto}
  .fresh{grid-template-columns:1fr}
  .play{grid-template-columns:1fr}
  .pl-left{grid-template-columns:1fr}
  .window{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;margin:0 -24px;padding:0 24px 10px}
  .wd{flex:0 0 210px;scroll-snap-align:start}
  .journey{grid-template-columns:1fr}
  .journey::before{display:none}
  .faqgrid{grid-template-columns:1fr}
  .ribbon-in{grid-template-columns:repeat(2,1fr);gap:20px}
  .rb-i:nth-child(2){border-right:0}
  .backtop{right:16px;bottom:24px;width:42px;height:42px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .rv{opacity:1;transform:none}
}