/* E站 EhViewer · ehviewer2027.org.cn —— 热门作品、收藏管理
   暖白工具书：中字重黑体 + 等宽数字 · 8px 圆角 · 首屏左框右文（界面展示并入）· 详情速览表 · 整宽深色下载条 */
:root{
  --bg:#FBF9F4; --bg-alt:#F2EFE6; --ink:#24312A; --dim:#77837B;
  --acc:#2E9E8F; --acc-soft:#DFEFEA; --dark:#1C3A33; --line:#E0DCCE;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:15px;line-height:1.85}
.wrap{width:min(1180px,92%);margin:0 auto}
h1,h2{font-weight:600;letter-spacing:.02em}
a{color:inherit;text-decoration:none}
img{display:block}

/* 顶栏 */
.top{position:sticky;top:0;z-index:20;background:rgba(251,249,244,.96);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;gap:26px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:600}
.brand img{border-radius:9px}
.top-nav{display:flex;gap:22px;margin-left:auto;font-size:14px;color:var(--dim)}
.top-nav a:hover{color:var(--acc)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;font-size:14px;border-radius:8px;border:1px solid var(--acc);transition:opacity .15s}
.btn:hover{opacity:.85}
.btn-p{background:var(--acc);color:#F2FAF7;font-weight:600}
.top-cta{padding:9px 22px}

/* 首屏：左滑动框右文（反向构图），界面展示并入 */
.hero{padding:88px 0 84px;border-bottom:1px solid var(--line)}
.hero-in{display:grid;grid-template-columns:380px 1fr;gap:72px;align-items:center}
.kick{font-family:ui-monospace,"Cascadia Mono",Consolas,monospace;font-size:11px;letter-spacing:.32em;color:var(--acc);text-transform:uppercase;margin-bottom:20px}
h1{font-size:52px;line-height:1.28;margin-bottom:22px}
.h1-narrow{display:none}
.lead{color:var(--dim);font-size:16px;margin-bottom:32px}
.hero-btns{display:flex;gap:14px}
.viewer-wrap{justify-self:center}
.viewer{position:relative}
.phone{width:300px;background:#FFFFFF;border:1px solid var(--line);border-radius:18px;padding:10px;box-shadow:0 14px 36px rgba(36,49,42,.12)}
.track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;border-radius:10px;scrollbar-width:none}
.track::-webkit-scrollbar{display:none}
.slide{flex:0 0 100%;scroll-snap-align:start}
.slide img{width:100%;height:auto;border-radius:10px}
.arrow{position:absolute;top:50%;transform:translateY(-50%);width:38px;height:38px;border-radius:8px;border:1px solid var(--line);background:#FFFFFF;color:var(--acc);font-size:19px;cursor:pointer;line-height:1}
.arrow:hover{background:var(--acc);color:#FFFFFF}
.arrow[disabled]{opacity:.35;pointer-events:none}
.prev{left:-52px}.next{right:-52px}
.bar{display:flex;align-items:center;gap:14px;justify-content:center;margin-top:18px}
.dots{display:flex;gap:8px}
.dots button{width:9px;height:9px;border-radius:3px;border:0;background:var(--line);cursor:pointer;padding:0}
.dots button[aria-current="true"]{background:var(--acc)}
.now{font-size:13px;color:var(--dim);min-width:5em}

/* 通用区块 */
.sec{padding:112px 0}
.sec-alt{background:var(--bg-alt)}
.sec-kick{font-family:ui-monospace,"Cascadia Mono",Consolas,monospace;font-size:11px;letter-spacing:.3em;color:var(--acc);margin-bottom:14px}
h2{font-size:33px;margin-bottom:14px}
.sec-p{color:var(--dim);max-width:560px;margin-bottom:44px}

/* 功能卡 */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:#FFFFFF;border:1px solid var(--line);border-radius:8px;padding:28px 26px 24px;box-shadow:0 3px 12px rgba(36,49,42,.05)}
.card b{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:600;margin-bottom:8px}
.card p{font-size:14px;color:var(--dim)}
.ico{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;font-style:normal;font-size:16px;font-weight:600;color:var(--acc);background:var(--acc-soft);border-radius:8px;flex:none}
.ico-b{color:#2D5FA8;background:#E3EBF7}
.ico-c{color:#8A5A22;background:#F4E9D7}
.ico-d{color:#7A3A55;background:#F2E2E9}
.ico-e{color:#4A6B2C;background:#E8EEDB}
.ico-f{color:#6B4A9E;background:#ECE3F5}

/* 详情速览表 */
.spec{width:100%;max-width:860px;border-collapse:collapse;background:#FFFFFF;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.spec th,.spec td{text-align:left;padding:15px 22px;font-size:14px;border-bottom:1px solid var(--line)}
.spec thead th{font-size:12px;font-family:ui-monospace,"Cascadia Mono",Consolas,monospace;letter-spacing:.18em;color:var(--acc);background:var(--acc-soft)}
.spec tbody tr:last-child td{border-bottom:0}
.spec td:first-child{font-weight:600;white-space:nowrap;width:9em}
.spec td:last-child{color:var(--dim)}

/* 下载区：整宽深色条 */
.dl{background:var(--dark);color:#E8F2ED;padding:96px 0}
.dl-kick{font-family:ui-monospace,"Cascadia Mono",Consolas,monospace;font-size:11px;letter-spacing:.3em;color:#6FCABB;margin-bottom:14px}
.dl h2{font-size:35px;margin-bottom:12px}
.dl-sub{color:#9FB7AE;margin-bottom:42px}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:860px}
.store{align-items:center;gap:14px;background:#FFFFFF;color:var(--ink);border-radius:8px;padding:16px 20px;transition:transform .15s}
.store:not([hidden]){display:flex}
.dl:not(:has(a[data-channel]:not([hidden]))){display:none}
.store:hover{transform:translateY(-2px)}
.store-ico{font-size:24px;width:36px;text-align:center;flex:none}
.store-t b{display:block;font-size:15px}
.store-t small{font-size:12px;color:var(--dim)}
.check{list-style:none;display:flex;gap:26px;flex-wrap:wrap;margin:30px 0 0;font-size:13px;color:#9FB7AE}
.check li::before{content:"✓";color:#6FCABB;margin-right:8px}

/* 安装步骤 */
.step-list{list-style:none;max-width:760px;counter-reset:step}
.step-list li{display:grid;grid-template-columns:64px 128px 1fr;gap:20px;align-items:start;background:#FFFFFF;border:1px solid var(--line);border-radius:8px;padding:22px 26px;margin-bottom:14px}
.step-n{font-family:ui-monospace,"Cascadia Mono",Consolas,monospace;font-size:24px;font-weight:600;color:var(--acc);line-height:1.5}
.step-list b{font-size:16px;font-weight:600;padding-top:3px}
.step-list p{font-size:14px;color:var(--dim);padding-top:4px}

/* 问答 */
.faq-list{display:grid;grid-template-columns:1fr 1fr;gap:16px 22px;max-width:920px}
details{background:#FFFFFF;border:1px solid var(--line);border-radius:8px;padding:16px 22px}
details summary{cursor:pointer;font-size:15px;font-weight:600;list-style:none;position:relative;padding-right:28px}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";position:absolute;right:2px;top:0;color:var(--acc);font-size:18px}
details[open] summary::after{content:"−"}
details p{font-size:14px;color:var(--dim);padding-top:10px}

/* 页脚 */
.foot{background:var(--bg-alt);color:var(--dim);padding:64px 0 0;border-top:1px solid var(--line)}
.foot-in{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;padding-bottom:44px}
.foot-h{font-size:13px;color:var(--acc);margin-bottom:14px;font-weight:600}
.foot-col a,.foot-col span{display:block;font-size:13px;padding:3px 0}
.foot-col a:hover{color:var(--acc)}
.foot-bot{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:18px 0;font-size:12px;color:#A5A898}

/* 无下载入口 */
.no-dl .dl{display:none}
.no-dl .top-cta{display:none}

/* 404 */
.nf-page{background:var(--bg);min-height:100vh;display:flex;align-items:center;justify-content:center}
.nf-in{text-align:center;padding:60px 24px;max-width:560px}
.nf-logo{width:88px;height:88px;border-radius:16px;margin:0 auto}
.nf-code{font-family:ui-monospace,"Cascadia Mono",Consolas,monospace;font-size:76px;line-height:1;color:var(--acc);margin:22px 0 8px}
.nf-in h1{font-size:30px;margin-bottom:14px}
.nf-p{font-size:14px;color:var(--dim);line-height:1.9;margin-bottom:26px}
.nf-small{font-size:12px;color:var(--dim);margin-top:26px}

/* 窄屏 */
@media (max-width:900px){
  .top-nav{display:none}
  .hero{padding:60px 0 56px}
  .hero-in{grid-template-columns:1fr;gap:44px}
  .viewer-wrap{order:1;justify-self:center}
  .hero-copy{order:2;text-align:left}
  h1{font-size:42px}
  .sec{padding:72px 0}
  .grid{grid-template-columns:1fr 1fr}
  .prev{left:6px}.next{right:6px}
  .dl{padding:72px 0}
  .dl-grid{grid-template-columns:1fr;max-width:420px}
  .foot-in{grid-template-columns:1fr 1fr}
  .faq-list{grid-template-columns:1fr}
  .step-list li{grid-template-columns:44px 1fr;grid-template-rows:auto auto;padding:18px 20px}
  .step-list p{grid-column:2}
}
@media (max-width:560px){
  .nav:not([hidden]){display:none}
  h1{font-size:36px}
  .h1-wide{display:none}
  .h1-narrow{display:inline}
  .grid{grid-template-columns:1fr}
  .phone{width:240px}
  .top-in{gap:14px}
  .top-cta{margin-left:auto}
  .spec th,.spec td{padding:11px 12px;font-size:13px}
}