:root{
  --green-deep:#2E7D5B;
  --green-mint:#A8D5BA;
  --green-bud:#C8E6C9;
  --cream:#F5F3E7;
  --amber:#D4A24C;
  --ink:#1B3A2D;
  --ink-soft:#6B8E7B;
  --card:#FFFFFF;
  --radius:22px;
  --shadow:0 10px 28px rgba(27,58,45,.10);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--cream);
  color:var(--ink);
  line-height:1.7;
  overflow-x:hidden;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(245,243,231,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(46,125,91,.12);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:.5px;color:var(--green-deep);}
.brand img{height:34px;width:auto;border-radius:9px;}
.nav-links{display:none;gap:26px;font-size:15px;color:var(--ink-soft);}
.nav-links a:hover{color:var(--green-deep);}
.nav-cta{
  display:inline-block;background:var(--green-deep);color:#fff;
  padding:9px 20px;border-radius:999px;font-size:14px;font-weight:600;
  transition:transform .2s ease, box-shadow .2s ease;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 18px rgba(46,125,91,.28);}

/* 首屏 */
.hero{
  position:relative;
  background:linear-gradient(170deg,#2E7D5B 0%,#6FAE8C 42%,#F5F3E7 100%);
  padding:56px 0 72px;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:auto -10% -50% -10%;height:340px;
  background:radial-gradient(ellipse at center, rgba(255,255,255,.45), transparent 70%);
  pointer-events:none;
}
.hero-grid{display:grid;gap:34px;position:relative;z-index:2;}
.hero-copy{color:#0F2A20;}
.hero-tag{
  display:inline-block;background:rgba(255,255,255,.72);color:var(--green-deep);
  font-size:13px;font-weight:600;padding:5px 14px;border-radius:999px;margin-bottom:16px;
}
.hero h1{
  font-size:29px;line-height:1.35;font-weight:800;color:#F7FBF8;
  text-shadow:0 3px 14px rgba(15,42,32,.35);
}
.hero h1 em{font-style:normal;color:#FFF3D2;}
.hero p.lead{
  margin-top:16px;font-size:15.5px;color:#F1F8F3;max-width:520px;
  text-shadow:0 2px 8px rgba(15,42,32,.3);
}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  background:#FFFDF4;color:var(--green-deep);font-weight:700;font-size:15px;
  padding:13px 28px;border-radius:999px;box-shadow:0 10px 24px rgba(15,42,32,.22);
  transition:transform .2s ease;
}
.btn-primary:hover{transform:translateY(-2px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  border:1.5px solid rgba(255,255,255,.8);color:#fff;font-weight:600;font-size:15px;
  padding:12px 26px;border-radius:999px;
  transition:background .2s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.16);}
.hero-banners{
  display:grid;grid-template-columns:1fr;gap:14px;
}
.banner-card{
  position:relative;border-radius:var(--radius);overflow:hidden;
  box-shadow:0 14px 32px rgba(15,42,32,.24);
  aspect-ratio:16/9;
}
.banner-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.banner-card:hover img{transform:scale(1.04);}
.banner-card .banner-cap{
  position:absolute;left:0;right:0;bottom:0;padding:22px 18px 14px;
  background:linear-gradient(to top, rgba(15,42,32,.82), transparent);
  color:#fff;font-size:13.5px;font-weight:600;
}

/* 通用区块 */
section{padding:64px 0;}
.section-head{max-width:640px;margin-bottom:32px;}
.eyebrow{
  font-size:13px;font-weight:700;letter-spacing:2px;color:var(--green-deep);
  text-transform:uppercase;margin-bottom:10px;
}
.section-head h2{font-size:24px;font-weight:800;line-height:1.4;}
.section-head p{margin-top:12px;color:var(--ink-soft);font-size:15px;}

/* 今日推荐 横滑 */
.rec-strip{
  display:grid;grid-auto-flow:column;grid-auto-columns:72%;
  gap:16px;overflow-x:auto;padding-bottom:14px;scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
}
.rec-strip::-webkit-scrollbar{height:6px;}
.rec-strip::-webkit-scrollbar-thumb{background:var(--green-mint);border-radius:9px;}
.rec-card{
  scroll-snap-align:start;background:var(--card);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(27,58,45,.16);}
.rec-card .cover{aspect-ratio:3/4;overflow:hidden;background:var(--green-bud);}
.rec-card .cover img{width:100%;height:100%;object-fit:cover;}
.rec-card .rec-body{padding:14px 15px 16px;}
.rec-card h3{font-size:15px;font-weight:700;line-height:1.5;}
.rec-card p{font-size:12.5px;color:var(--ink-soft);margin-top:6px;}
.pill{
  display:inline-block;background:var(--green-bud);color:var(--green-deep);
  font-size:11.5px;font-weight:600;padding:2px 10px;border-radius:999px;margin-bottom:8px;
}

/* 分类六宫格 */
.category-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px;
}
.cat-item{
  background:var(--green-bud);border-radius:18px;padding:22px 18px;
  display:flex;flex-direction:column;gap:6px;
  transition:background .25s ease, transform .25s ease;
}
.cat-item:nth-child(even){background:#DFF0E2;}
.cat-item:hover{background:var(--green-mint);transform:translateY(-3px);}
.cat-item strong{font-size:16px;color:var(--ink);}
.cat-item span{font-size:12.5px;color:var(--ink-soft);}

/* 排行榜 */
.rank-block{
  background:var(--card);border-radius:26px;padding:24px;box-shadow:var(--shadow);
  display:grid;gap:24px;
}
.rank-hero{
  position:relative;border-radius:18px;overflow:hidden;aspect-ratio:3/4;
  box-shadow:0 12px 26px rgba(27,58,45,.18);
}
.rank-hero img{width:100%;height:100%;object-fit:cover;}
.rank-hero .rank-badge{
  position:absolute;top:14px;left:14px;background:var(--amber);color:#3A2A0C;
  font-size:12px;font-weight:800;padding:4px 12px;border-radius:999px;
}
.rank-list{list-style:none;display:flex;flex-direction:column;gap:2px;}
.rank-list li{
  display:flex;align-items:center;gap:14px;padding:13px 4px;
  border-bottom:1px dashed rgba(107,142,123,.3);
}
.rank-list li:last-child{border-bottom:none;}
.rank-num{
  width:26px;height:26px;flex:none;border-radius:9px;background:var(--green-bud);
  color:var(--green-deep);font-size:13px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.rank-num.top{background:var(--amber);color:#3A2A0C;}
.rank-title{font-size:14.5px;font-weight:600;}
.rank-meta{font-size:12px;color:var(--ink-soft);margin-left:auto;flex:none;}

/* 编辑精选 */
.feature-grid{display:grid;gap:20px;}
.feature-card{
  position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:16/10;
  box-shadow:var(--shadow);
}
.feature-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.feature-card:hover img{transform:scale(1.05);}
.feature-card .f-overlay{
  position:absolute;inset:auto 0 0 0;padding:26px 20px 18px;
  background:linear-gradient(to top, rgba(15,42,32,.85), transparent);
  color:#fff;
}
.feature-card .f-overlay strong{font-size:17px;display:block;}
.feature-card .f-overlay span{font-size:13px;opacity:.88;}

/* 社区 */
.community-grid{display:grid;gap:18px;grid-template-columns:1fr;}
.community-item{
  background:var(--card);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);transition:transform .25s ease;
}
.community-item:hover{transform:translateY(-3px);}
.community-item .sq{aspect-ratio:1/1;overflow:hidden;background:var(--green-bud);}
.community-item .sq img{width:100%;height:100%;object-fit:cover;}
.community-item .c-body{padding:14px 16px 18px;font-size:13.5px;color:var(--ink-soft);}
.community-item .c-body strong{display:block;color:var(--ink);font-size:15px;margin-bottom:4px;}

/* 阅读器展示 */
.reader-show{background:#EAF3EC;border-radius:28px;padding:34px 22px;}
.reader-grid{display:grid;gap:22px;}
.reader-card{
  background:var(--card);border-radius:24px;padding:18px;box-shadow:var(--shadow);
  display:flex;flex-direction:column;gap:12px;
}
.reader-card h3{font-size:16px;font-weight:700;}
.reader-card p{font-size:13.5px;color:var(--ink-soft);}
.reader-card img{border-radius:16px;width:100%;height:auto;}

/* App 下载 */
.app-band{
  background:linear-gradient(150deg,#255C45,#3E8F6C 60%,#7FBF98);
  border-radius:30px;padding:38px 24px;color:#F4FBF6;
}
.app-band h2{font-size:23px;font-weight:800;line-height:1.4;}
.app-band p{margin-top:12px;font-size:14.5px;color:#DDEFE3;max-width:520px;}
.app-devices{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:26px;}
.app-devices figure{
  border-radius:20px;overflow:hidden;background:rgba(255,255,255,.12);
  box-shadow:0 12px 26px rgba(0,0,0,.2);
}
.app-devices img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/4;}
.app-devices figcaption{
  font-size:12px;padding:8px 10px;color:#E8F4EC;text-align:center;
}
.app-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.dl-btn{
  display:inline-flex;align-items:center;gap:8px;background:#FFFDF4;color:var(--green-deep);
  font-weight:700;font-size:15px;padding:13px 26px;border-radius:999px;
  transition:transform .2s ease;
}
.dl-btn:hover{transform:translateY(-2px);}
.dl-note{font-size:12.5px;color:#CFE7D8;}

/* 功能小卡 */
.func-grid{display:grid;gap:18px;}
.func-card{
  background:var(--card);border-radius:var(--radius);padding:20px;
  box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px;
}
.func-card img{border-radius:14px;aspect-ratio:16/10;object-fit:cover;width:100%;}
.func-card h3{font-size:16px;font-weight:700;}
.func-card p{font-size:13.5px;color:var(--ink-soft);}

/* FAQ */
.faq-wrap{background:#F0F6F0;border-radius:28px;padding:34px 22px;}
.faq-list{display:flex;flex-direction:column;gap:10px;margin-top:22px;}
.faq-item{background:var(--card);border-radius:16px;overflow:hidden;box-shadow:0 6px 16px rgba(27,58,45,.07);}
.faq-item summary{
  cursor:pointer;list-style:none;padding:16px 18px;font-size:14.5px;font-weight:600;
  display:flex;justify-content:space-between;align-items:center;gap:12px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";color:var(--green-deep);font-size:20px;font-weight:400;}
.faq-item[open] summary::after{content:"–";}
.faq-item .faq-body{padding:0 18px 18px;font-size:13.5px;color:var(--ink-soft);}
.faq-illust{max-width:180px;margin:0 auto 12px;}

/* 页脚 */
.site-footer{
  background:#E7EFE4;padding:34px 0 40px;border-top:1px solid rgba(46,125,91,.15);
}
.footer-inner{display:flex;flex-direction:column;gap:10px;align-items:center;text-align:center;}
.footer-inner p{font-size:12.5px;color:var(--ink-soft);}
.footer-inner a{color:var(--green-deep);}
.footer-inner .time{font-size:12px;color:#89A797;}

/* 断点 768 */
@media(min-width:768px){
  .hero h1{font-size:38px;}
  .hero-banners{grid-template-columns:1fr 1fr;}
  .hero-banners .banner-card:first-child{grid-column:1 / -1;}
  .rec-strip{grid-auto-columns:38%;}
  .category-grid{grid-template-columns:repeat(3,1fr);}
  .rank-block{grid-template-columns:280px 1fr;align-items:start;}
  .feature-grid{grid-template-columns:1fr 1fr;}
  .community-grid{grid-template-columns:1fr 1fr;}
  .reader-grid{grid-template-columns:1fr 1fr;}
  .func-grid{grid-template-columns:1fr 1fr;}
  .nav-links{display:flex;}
  .section-head h2{font-size:28px;}
}

/* 断点 1024 */
@media(min-width:1024px){
  section{padding:82px 0;}
  .hero{padding:76px 0 96px;}
  .hero-grid{grid-template-columns:1fr 1.05fr;align-items:center;gap:50px;}
  .hero h1{font-size:44px;}
  .hero p.lead{font-size:16.5px;}
  .hero-banners{grid-template-columns:1fr 1fr;}
  .rec-strip{grid-auto-columns:23%;}
  .app-band{padding:56px 48px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
  .app-devices{margin-top:0;}
  .community-grid{grid-template-columns:repeat(2,1fr);}
  .func-grid{grid-template-columns:repeat(2,1fr);}
  .faq-wrap{padding:48px 56px;display:grid;grid-template-columns:1fr 1.4fr;gap:36px;align-items:start;}
  .site-footer{padding:40px 0 46px;}
}