/* 栗子漫画 · lizicomic.cn · 速写本
   纯白格线纸 + 柠檬黄，楷体标题，直角，表格式首屏 */
:root{
  --bg:#FFFFFF; --card:#FFFFFF; --ink:#2B2B2B; --dim:#6E6E6E;
  --yellow:#FFD400; --line:#DCDCD5; --grid:#E9F0FA; --paper:#FAF9F3;
  --sh:0 10px 22px -18px rgba(43,43,43,.5);
  --kai:"KaiTi","STKaiti","Kaiti SC","楷体",serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",system-ui,sans-serif;
  font-size:15px;line-height:1.78;-webkit-font-smoothing:antialiased}
img{max-width:100%}
a{color:inherit;text-decoration:none}
b{font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{width:min(1140px,calc(100% - 64px));margin:0 auto}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:#fff;padding:8px 14px;z-index:50}
.h1-narrow{display:none}

/* ---------- 顶栏 ---------- */
.top{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--ink);transition:box-shadow .2s}
.top.on{box-shadow:0 6px 18px -14px rgba(43,43,43,.6)}
.top-in{display:flex;align-items:center;gap:36px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;
  font-family:var(--kai);white-space:nowrap}
.brand img{width:34px;height:34px;display:block}
.tnav{display:flex;gap:26px;margin-left:auto;font-size:13.5px;color:var(--dim)}
.tnav a:hover{color:var(--ink)}
.top-cta{background:var(--yellow);color:var(--ink);font-size:13.5px;font-weight:700;
  padding:9px 20px;border:1px solid var(--ink);white-space:nowrap}
.top-cta:hover{background:#F0C800}
.no-dl .top-cta{display:none}

/* ---------- 首屏 ---------- */
.hero{padding:60px 0 86px;border-bottom:1px solid var(--line);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),
                   linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:30px 30px;background-position:-1px -1px}
.hero-head{display:flex;align-items:center;justify-content:space-between;gap:20px;
  border-bottom:1px solid var(--ink);padding-bottom:12px}
.kick{font-size:10.5px;font-weight:700;letter-spacing:.18em;color:#8A7A20;text-transform:uppercase}
.head-dl{font-size:13.5px;font-weight:700;border-bottom:2px solid var(--yellow);padding-bottom:2px}
.hero-t{padding:48px 0 40px;max-width:760px}
.hero h1{font-family:var(--kai);font-size:clamp(38px,4.2vw,56px);line-height:1.22;
  letter-spacing:.01em;font-weight:700;margin:0 0 18px}
.hero .lead{font-size:15px;color:#575757;line-height:1.9;max-width:620px}
.acts{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:24px}
.btn{font-size:14.5px;font-weight:700;padding:11px 28px;border:1px solid var(--ink);display:inline-block}
.btn.btn-p{background:var(--yellow);color:var(--ink)}
.btn.btn-p:hover{background:#F0C800}
.btn.btn-s{background:#fff;color:var(--ink)}
.btn.btn-s:hover{background:var(--paper)}
.acts-note{font-size:12.5px;color:var(--dim);margin-top:13px}
.idx{width:100%;border-collapse:collapse;table-layout:fixed;background:#fff;
  border:1px solid var(--ink);box-shadow:var(--sh)}
.idx caption{text-align:left;font-size:12.5px;color:var(--dim);padding:0 0 10px}
.idx th,.idx td{border:1px solid var(--line);padding:13px 18px;text-align:left;font-size:13.8px}
.idx th{background:var(--paper);font-size:12.5px;font-weight:700;letter-spacing:.06em;
  border-bottom:1px solid var(--ink)}
.idx th:nth-child(1),.idx td:nth-child(1){width:24%;font-weight:700}
.idx th:nth-child(2),.idx td:nth-child(2){width:20%;color:var(--dim)}
.idx tbody tr:hover{background:#FFFDF0}

/* ---------- 区块通用 ---------- */
.sec{padding:100px 0}
.sec-h{margin-bottom:40px}
.sec-h h2{font-family:var(--kai);font-size:clamp(28px,2.9vw,38px);
  font-weight:700;line-height:1.3;margin:12px 0 0}
.sec-p{font-size:14px;color:var(--dim);margin-top:12px}

/* ---------- 功能长条卡 ---------- */
.feat{border-bottom:1px solid var(--line);background:var(--paper)}
.feat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.feat-grid li{background:#fff;border:1px solid var(--line);
  padding:20px 22px 18px;display:grid;grid-template-columns:44px minmax(0,1fr);
  gap:0 16px;align-items:start;box-shadow:var(--sh)}
.fi{width:44px;height:44px;background:#FFF6C4;border:1px solid #E8D46A;
  display:flex;align-items:center;justify-content:center;
  font-family:Georgia,serif;font-size:14px;font-weight:700;color:#7A6414}
.feat-grid b{font-size:16px;font-weight:700}
.feat-grid p{font-size:13.8px;color:var(--dim);line-height:1.85;margin-top:7px}

/* ---------- 界面展示 ---------- */
.shots-in{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:56px;align-items:center}
.shots-t h2{font-family:var(--kai);font-size:clamp(28px,2.9vw,38px);
  font-weight:700;line-height:1.3;margin:12px 0 18px}
.shots-t .sub{font-size:14.5px;color:#575757;line-height:1.9;max-width:520px}
.shots-note{font-size:13px;color:var(--dim);line-height:1.85;margin-top:22px;
  padding-top:18px;border-top:1px solid var(--line);max-width:490px}
.stage{width:380px;margin:0 auto;position:relative;background:#fff;border:1px solid var(--yellow);
  padding:16px 40px 10px;box-shadow:var(--sh)}
.viewer{width:300px;margin:0 auto}
.phone{background:#2B2B2B;border-radius:0;padding:8px;
  box-shadow:0 20px 40px -26px rgba(43,43,43,.85)}
.track{display:flex;overflow-x:auto;overscroll-behavior-x:contain;
  scroll-snap-type:x mandatory;scrollbar-width:none}
.track::-webkit-scrollbar{display:none}
.slide{flex:0 0 100%;margin:0;scroll-snap-align:center}
.slide img{display:block;width:100%;height:auto;pointer-events:none}
.stage .nav{position:absolute;top:42%;transform:translateY(-50%);z-index:2;
  width:30px;height:30px;border-radius:50%;padding:0;font-size:16px;line-height:1;
  background:#fff;border:1px solid #C9C9C0;color:var(--ink);cursor:pointer;
  box-shadow:0 8px 16px -9px rgba(43,43,43,.6)}
.stage .nav:not([hidden]){display:flex;align-items:center;justify-content:center}
.stage .nav.prev{left:6px}
.stage .nav.next{right:6px}
.stage .nav[disabled]{opacity:.5;cursor:default}
.bar{margin-top:12px;display:flex;flex-direction:column;align-items:center;gap:8px}
.dots{display:flex;gap:6px}
.dots button{width:7px;height:7px;padding:0;border:0;border-radius:50%;
  background:#D8D8CE;cursor:pointer;transition:background .2s,width .2s}
.dots button[aria-current="true"]{background:var(--ink);width:18px;border-radius:4px}
.now{margin:0;font-size:12.5px;color:var(--dim);text-align:center}
.now b{color:var(--ink)}

/* ---------- 下载区 ---------- */
.dl{padding:92px 0}
.dl:not(:has(.store:not([hidden]))){display:none}
.dl-card{background:var(--yellow);border:1px solid var(--ink);padding:46px 44px 40px;
  box-shadow:8px 8px 0 rgba(43,43,43,.12)}
.dl .kick{color:#6D5C0F}
.dl-h h2{font-family:var(--kai);font-size:clamp(28px,2.9vw,38px);
  font-weight:700;line-height:1.3;margin:12px 0 10px}
.dl-h p{font-size:14.5px;color:#4D451F;max-width:640px}
.stores{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;margin-top:30px}
.store{background:#fff;border:1px solid var(--ink);padding:16px 18px;color:var(--ink)}
.store:not([hidden]){display:grid;grid-template-columns:38px minmax(0,1fr) 14px;
  gap:0 14px;align-items:center}
.store:hover{background:var(--paper)}
.si{width:38px;height:38px;background:#FFF6C4;border:1px solid #E8D46A;
  display:flex;align-items:center;justify-content:center;
  font-family:Georgia,serif;font-size:17px;font-weight:700}
.st b{display:block;font-size:15px;font-weight:700}
.st small{display:block;font-size:12.5px;color:var(--dim);margin-top:3px;line-height:1.6}
.sa{font-size:17px;color:#8B8570;text-align:right}
.checks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 36px;
  margin-top:28px;padding-top:24px;border-top:1px solid rgba(43,43,43,.35)}
.checks li{font-size:13.5px;color:#3F3A22;padding-left:18px;position:relative;line-height:1.8}
.checks li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;
  background:#2B2B2B}
.dl-note{font-size:12.8px;color:#5C5324;margin-top:20px}

/* ---------- 安装步骤 ---------- */
.steps{border-bottom:1px solid var(--line)}
.step-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0}
.step-row li{display:grid;grid-template-columns:50px minmax(0,1fr);gap:2px 14px;
  padding:0 28px;border-left:1px solid var(--line)}
.step-row li:first-child{padding-left:0;border-left:0}
.step-row span{grid-row:span 2;font-family:Georgia,serif;font-size:26px;
  font-weight:700;color:#9A8314;line-height:1.2}
.step-row b{font-size:16px;font-weight:700;align-self:end}
.step-row p{font-size:13.8px;color:var(--dim);line-height:1.85;margin-top:6px}

/* ---------- 问答 ---------- */
.faq{background:var(--paper)}
.qa{max-width:880px;border-top:1px solid var(--ink)}
.qa details{border-bottom:1px solid var(--line);padding:16px 4px}
.qa summary{cursor:pointer;font-size:14.5px;font-weight:700;list-style:none;
  display:flex;justify-content:space-between;gap:14px}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";color:#9A8314;font-size:17px;line-height:1}
.qa details[open] summary::after{content:"−"}
.qa details p{font-size:13.5px;color:var(--dim);line-height:1.85;margin-top:10px}

/* ---------- 页脚 ---------- */
.foot{background:#F4F4F0;border-top:1px solid var(--ink);color:var(--ink);padding:56px 0 20px}
.f-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.f-brand .brand{font-size:19px}
.f-brand p{font-size:13px;color:var(--dim);margin-top:16px;line-height:1.85;max-width:280px}
.f-grid h3{font-size:12px;letter-spacing:.12em;color:#7A6414;margin:0 0 16px;font-weight:700}
.f-grid li{font-size:13px;color:var(--dim);padding:5px 0}
.f-grid li a:hover{color:var(--ink)}
.f-line{display:flex;justify-content:space-between;gap:20px;
  margin-top:40px;padding-top:18px;border-top:1px solid var(--line)}
.f-line p{font-size:12px;color:#8B8B83}

/* ---------- 404 ---------- */
.nf-in{padding:96px 0 110px;max-width:680px}
.nf h1{font-family:var(--kai);font-size:clamp(34px,4vw,52px);font-weight:700;
  line-height:1.24;margin:16px 0 18px}
.nf .lead{font-size:15px;color:#575757;line-height:1.9}
.nf .acts{margin-top:26px}

/* ---------- 窄屏 ---------- */
@media (max-width:900px){
  .shots-in{grid-template-columns:minmax(0,1fr);gap:36px;justify-items:center;text-align:center}
  .shots-t .sub,.shots-note{margin-left:auto;margin-right:auto}
  .stage{width:340px;padding:14px 20px 10px}
  .viewer{width:280px}
  .stage .nav.prev{left:2px}
  .stage .nav.next{right:2px}
}
@media (max-width:640px){
  .wrap{width:calc(100% - 36px)}
  .top-in{gap:12px;height:62px}
  .tnav{display:none}
  .top-cta{margin-left:auto;padding:8px 16px;font-size:13px}
  .hero{padding:40px 0 56px}
  .hero-t{padding:34px 0 30px}
  .hero h1{font-size:34px}
  .h1-wide{display:none}
  .h1-narrow{display:inline}
  .lead br{display:none}
  .idx th,.idx td{padding:8px 5px;font-size:11px}
  .idx th:nth-child(1),.idx td:nth-child(1){width:21%}
  .idx th:nth-child(2),.idx td:nth-child(2){width:18%}
  .sec{padding:72px 0}
  .feat-grid,.checks,.step-row,.stores{grid-template-columns:1fr}
  .step-row li{padding:16px 0 0;border-left:0;border-top:1px solid var(--line)}
  .step-row li:first-child{border-top:0;padding-top:0}
  .dl{padding:72px 0}
  .dl-card{padding:30px 20px 26px}
  .stage{width:280px;padding:12px 20px 10px}
  .viewer{width:240px}
  .stage .nav:not([hidden]){display:none}
  .f-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .f-line{flex-direction:column;gap:6px}
}