:root{
  --ink:#3B2A20;
  --ink-2:#5A4234;
  --orange:#E9733C;
  --orange-d:#C8551F;
  --orange-l:#FBDCC4;
  --apricot:#F7C79C;
  --cream:#FFFAF2;
  --cream-2:#FFF3E4;
  --card:#FFFFFF;
  --line:#F1DCC7;
  --muted:#97796A;
  --r-lg:26px;
  --r-md:18px;
  --shadow:0 14px 34px rgba(202,124,66,.12);
  --shadow-s:0 6px 16px rgba(202,124,66,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  color:var(--ink);background:var(--cream);line-height:1.85;font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.35;font-weight:800}
.wrap{width:100%;max-width:1100px;margin:0 auto;padding:0 26px}

/* ============ 顶栏：奶油白 + 圆角胶囊 ============ */
.top{
  position:sticky;top:0;z-index:90;background:rgba(255,250,242,.92);
  border-bottom:1px solid rgba(241,220,199,.8);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.top.on{box-shadow:0 10px 26px rgba(202,124,66,.10)}
.top-in{display:flex;align-items:center;height:72px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand img{width:38px;height:38px;border-radius:50%;box-shadow:0 4px 12px rgba(202,124,66,.18);background:#fff}
.brand-t b{display:block;font-size:18px;letter-spacing:1.6px;line-height:1.2;color:var(--ink)}
.brand-t small{display:block;font-size:10px;letter-spacing:1.2px;color:var(--muted);margin-top:3px}
.nav{display:flex;gap:6px;margin-left:auto;font-size:13px;font-weight:700;color:var(--ink-2)}
.nav a{padding:7px 13px;border-radius:999px;transition:background .2s ease,color .2s ease}
.nav a:hover{background:var(--orange-l);color:var(--orange-d)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;color:var(--ink);padding:4px}
.cta{
  flex:none;color:#fff;font-size:13px;font-weight:800;letter-spacing:.4px;
  padding:11px 22px;border-radius:999px;
  background:linear-gradient(135deg,#F08A4B,#E9733C);
  box-shadow:0 8px 18px rgba(233,115,60,.32);
}
.cta:hover{background:linear-gradient(135deg,#E9733C,#C8551F)}

/* ============ 英雄区：杏色云朵 ============ */
.hero{
  position:relative;overflow:hidden;padding:64px 0 66px;
  background:
    radial-gradient(560px 420px at 88% 6%,rgba(247,199,156,.55),transparent 72%),
    radial-gradient(420px 340px at 4% 88%,rgba(251,220,196,.7),transparent 74%),
    linear-gradient(180deg,#FFFBF5 0%,#FFF4E6 100%);
}
.hero::after{
  content:"";position:absolute;left:-90px;bottom:-120px;width:300px;height:300px;
  border-radius:50%;background:rgba(247,199,156,.22);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:44px;align-items:center;position:relative;z-index:1}
.kick{
  display:inline-flex;align-items:center;gap:8px;font-size:11.5px;letter-spacing:2.6px;
  color:var(--orange-d);background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:5px 14px;margin-bottom:18px;box-shadow:var(--shadow-s);
}
.kick::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--orange)}
.hero h1{
  font-size:66px;letter-spacing:4px;line-height:1.1;margin-bottom:12px;color:var(--ink);
}
.hero h1 span{color:var(--orange)}
.hero .lead{font-size:19px;font-weight:800;color:var(--ink-2);margin-bottom:12px}
.hero .desc{font-size:14.8px;color:#8A6F5E;max-width:548px;margin-bottom:26px;line-height:2}
.acts{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.btn{
  display:inline-flex;align-items:center;gap:8px;color:#fff;
  padding:14px 30px;border-radius:999px;font-weight:800;font-size:15px;
  background:linear-gradient(135deg,#F08A4B,#E9733C);
  box-shadow:0 10px 24px rgba(233,115,60,.32);
}
.btn svg{width:17px;height:17px}
.btn:hover{background:linear-gradient(135deg,#E9733C,#C8551F);transform:translateY(1px)}
.ghost{
  display:inline-flex;align-items:center;padding:13px 22px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--orange-d);
  font-size:13.5px;font-weight:800;box-shadow:var(--shadow-s);
}
.ghost:hover{background:var(--cream-2);border-color:var(--apricot)}
.facts{display:flex;flex-wrap:wrap;gap:18px;margin-top:30px}
.facts div{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:10px 16px;box-shadow:var(--shadow-s);
}
.facts b{display:block;font-size:12.5px;color:var(--ink);letter-spacing:.4px}
.facts span{display:block;font-size:11px;color:var(--muted);margin-top:2px}

/* 书架叠放 */
.album{position:relative;height:470px;z-index:1}
.spine{
  position:absolute;right:0;top:5%;writing-mode:vertical-rl;letter-spacing:5px;
  font-size:10.5px;color:rgba(200,85,31,.55);
}
.pg{
  position:absolute;background:#fff;padding:9px;margin:0;border-radius:var(--r-md);
  box-shadow:0 20px 44px rgba(180,104,50,.22),0 0 0 1px rgba(241,220,199,.9);
}
.pg img{width:100%;height:100%;object-fit:cover;border-radius:10px}
.p1{left:0;top:8%;width:55%;height:68%;transform:rotate(-3deg);z-index:2}
.p2{left:27%;top:0;width:50%;height:64%;transform:rotate(2.4deg);z-index:3}
.p3{right:2%;bottom:2%;width:47%;height:58%;transform:rotate(-1.4deg);z-index:4}
.seal{
  position:absolute;left:-10px;bottom:8%;width:64px;height:64px;border-radius:50%;
  background:linear-gradient(135deg,#F7C79C,#E9733C);color:#fff;font-size:25px;font-weight:800;
  display:grid;place-items:center;z-index:6;
  box-shadow:0 10px 22px rgba(202,85,31,.3),inset 0 -3px 0 rgba(255,255,255,.3);
}

/* ============ 通用区块 ============ */
.sec{padding:70px 0;background:var(--cream)}
.band{background:var(--cream-2);border-top:1px solid rgba(241,220,199,.7);border-bottom:1px solid rgba(241,220,199,.7)}
.hd2{display:grid;grid-template-columns:92px 1fr;gap:18px;align-items:start;margin-bottom:32px}
.hd2 .no{
  font-family:"SFMono-Regular",Consolas,monospace;font-size:10.5px;letter-spacing:.8px;
  color:var(--orange-d);background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:4px 10px;text-align:center;white-space:nowrap;box-shadow:var(--shadow-s);
}
.hd2 h2{font-size:32px;letter-spacing:1.2px;margin-bottom:7px;color:var(--ink)}
.hd2 p{font-size:14.4px;color:var(--muted);max-width:800px}

/* 特色：圆角白卡 */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
  position:relative;background:var(--card);border-radius:var(--r-lg);
  padding:24px 22px 26px;box-shadow:var(--shadow-s);
  border:1px solid rgba(241,220,199,.75);
  transition:transform .22s ease,box-shadow .22s ease;
}
.card .n{
  display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;
  background:var(--orange-l);color:var(--orange-d);
  font-family:"SFMono-Regular",Consolas,monospace;font-size:11.5px;font-weight:800;letter-spacing:.6px;
}
.card h4{font-size:17.5px;letter-spacing:.8px;margin:12px 0 7px;color:var(--ink)}
.card p{font-size:13.5px;color:#7C6455;line-height:1.95}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}

/* 界面：一大图 + 三行圆卡 */
.spread{display:grid;grid-template-columns:1.1fr .9fr;gap:20px;align-items:start}
.spread figure{margin:0;background:#fff;border-radius:var(--r-lg);box-shadow:var(--shadow-s);border:1px solid rgba(241,220,199,.75)}
.big{padding:12px}
.big img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:14px}
.big figcaption{font-size:12.8px;color:var(--muted);padding:11px 6px 3px;letter-spacing:.4px}
.strip{display:grid;gap:14px}
.strip figure{display:grid;grid-template-columns:88px 1fr;gap:14px;align-items:center;padding:12px}
.strip img{width:88px;height:118px;object-fit:cover;border-radius:12px}
.strip figcaption{font-size:13.2px;color:var(--ink-2);letter-spacing:.3px;font-weight:600}

/* 指南：五步圆点 */
.steps{list-style:none;position:relative;margin-top:6px;padding-left:0;max-width:900px}
.steps::before{
  content:"";position:absolute;left:21px;top:12px;bottom:20px;width:2px;
  background:linear-gradient(180deg,var(--orange),rgba(233,115,60,.15));
}
.steps li{
  position:relative;padding:0 0 24px 62px;font-size:14.3px;color:#7C6455;line-height:1.95;
}
.steps li:last-child{padding-bottom:4px}
.steps b{
  position:absolute;left:0;top:-2px;width:44px;height:44px;border-radius:50%;
  background:#fff;border:2px solid var(--orange-l);color:var(--orange-d);
  display:grid;place-items:center;font-family:"SFMono-Regular",Consolas,monospace;
  font-size:12px;font-weight:800;box-shadow:var(--shadow-s);
}
.gnote{
  margin-top:18px;max-width:900px;border-radius:16px;
  background:#fff;border:1px dashed var(--apricot);
  padding:13px 18px;font-size:13px;color:#8A6F5E;
}

/* 答疑：圆角条目 */
.qa{display:grid;gap:12px}
.qa-item{
  display:grid;grid-template-columns:52px 1fr;gap:16px;align-items:start;
  background:#fff;border-radius:var(--r-md);padding:20px 22px;
  border:1px solid rgba(241,220,199,.8);box-shadow:var(--shadow-s);
}
.qa-item .qn{
  display:grid;place-items:center;width:38px;height:38px;border-radius:12px;
  background:var(--cream-2);color:var(--orange-d);font-size:12px;font-weight:800;
  font-family:"SFMono-Regular",Consolas,monospace;
}
.qa-item h3{font-size:16.5px;letter-spacing:.5px;margin-bottom:6px;color:var(--ink)}
.qa-item p{font-size:13.8px;color:#7C6455;line-height:1.95}

/* 评价：软卡 */
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rev-card{
  position:relative;background:#fff;border-radius:var(--r-lg);
  padding:26px 22px 18px;box-shadow:var(--shadow-s);
  border:1px solid rgba(241,220,199,.75);
}
.rev-card::before{
  content:"\201C";position:absolute;top:4px;right:16px;font-family:Georgia,serif;
  font-size:60px;line-height:1;color:rgba(233,115,60,.14);
}
.rev-card:nth-child(2){margin-top:14px}
.rev-card blockquote{position:relative;z-index:1;font-size:13.5px;color:#7C6455;line-height:2}
.rev-card .who{
  display:flex;align-items:center;gap:8px;margin-top:14px;padding-top:11px;
  border-top:1px dashed var(--line);font-size:10.8px;color:var(--muted);
}
.rev-card .who i{
  width:24px;height:24px;border-radius:50%;background:var(--orange-l);color:var(--orange-d);
  font-style:normal;font-size:10.5px;font-weight:800;display:grid;place-items:center;
}
.rev-card .who time{font-family:"SFMono-Regular",Consolas,monospace;letter-spacing:0}

/* ============ 下载：杏色大圆角面板 ============ */
.get{padding:64px 0 76px;background:var(--cream)}
.get-in{
  position:relative;overflow:hidden;text-align:center;margin:0 auto;
  max-width:1000px;border-radius:34px;padding:56px 32px 58px;
  background:
    radial-gradient(360px 240px at 84% 10%,rgba(255,255,255,.7),transparent 70%),
    linear-gradient(150deg,#FFE9D2 0%,#FBD3AE 100%);
  box-shadow:0 24px 50px rgba(202,124,66,.18);
  border:1px solid rgba(255,255,255,.7);
}
.get-in::before{
  content:"";position:absolute;right:-70px;bottom:-90px;width:260px;height:260px;
  border-radius:50%;background:rgba(255,255,255,.35);
}
.dlogo{position:relative;display:flex;align-items:center;justify-content:center;gap:11px;margin-bottom:14px}
.dlogo img{width:50px;height:50px;border-radius:50%;background:#fff;box-shadow:0 8px 18px rgba(202,124,66,.22)}
.dlogo em{font-style:normal;font-size:10px;letter-spacing:2.6px;color:#B06A38;font-weight:700}
.get h2{position:relative;font-size:34px;letter-spacing:2px;margin-bottom:11px;color:#4A2C19}
.get h2 em{font-style:normal;color:var(--orange-d)}
.get p{position:relative;font-size:13.9px;color:#8A5F3E;max-width:620px;margin:0 auto 20px;line-height:1.95}
.dm{position:relative;display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:26px}
.dm span{
  font-size:11px;background:rgba(255,255,255,.72);border-radius:999px;
  padding:5px 14px;color:#9A5A2C;font-weight:700;
}
.get .btn{position:relative;box-shadow:0 12px 26px rgba(202,85,31,.34)}

/* ============ 页脚 ============ */
.ft{background:#FFF6EA;color:#8A6F5E;padding:40px 0 28px;font-size:12.2px;border-top:1px solid var(--line)}
.ft-in{display:flex;flex-wrap:wrap;gap:12px 26px;align-items:flex-start;justify-content:space-between}
.ft-brand{display:flex;align-items:center;gap:9px;color:var(--ink);font-weight:800;font-size:13.5px;letter-spacing:1.2px}
.ft-brand img{width:28px;height:28px;border-radius:50%;background:#fff;box-shadow:var(--shadow-s)}
.ft p{max-width:520px;line-height:1.95;color:#9A8272}
.ft-links{display:flex;gap:8px;flex-wrap:wrap;font-size:11.8px;font-weight:600}
.ft-links a{padding:4px 12px;border-radius:999px;background:#fff;border:1px solid var(--line)}
.ft-links a:hover{color:var(--orange-d);border-color:var(--apricot)}
.ft-copy{width:100%;border-top:1px solid var(--line);padding-top:14px;font-size:11px;color:#A8907F;line-height:1.95}

/* ============ 返回顶部 ============ */
.backtop{
  position:fixed;right:24px;bottom:150px;z-index:70;width:46px;height:46px;border-radius:50%;
  background:#fff;border:1px solid var(--line);color:var(--orange-d);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  box-shadow:0 8px 20px rgba(202,124,66,.2);
  opacity:0;visibility:hidden;transition:opacity .2s ease;
}
.backtop.on{opacity:1;visibility:visible}
.backtop:hover{background:var(--orange);color:#fff;border-color:var(--orange)}

/* ============ 响应式 960 ============ */
@media (max-width:960px){
  .nav{
    display:none;position:absolute;top:72px;left:0;right:0;margin-left:0;
    background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;gap:0;padding:8px 26px 14px;
    box-shadow:0 14px 26px rgba(202,124,66,.12);
  }
  .nav.open{display:flex}
  .nav a{padding:11px 12px;border-radius:12px;border-bottom:1px solid rgba(241,220,199,.6)}
  .nav a:last-child{border-bottom:0}
  .nav-toggle{display:block;margin-left:auto}
  .cta{padding:10px 16px;font-size:12px}
  .hero{padding:48px 0 52px}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero h1{font-size:54px}
  .hero .desc{max-width:none}
  .album{max-width:470px;width:100%;height:432px;margin:0 auto}
  .feat-grid{grid-template-columns:1fr 1fr}
  .spread{grid-template-columns:1fr}
  .strip{grid-template-columns:repeat(3,1fr)}
  .strip figure{display:block;padding:10px}
  .strip img{width:100%;height:auto;aspect-ratio:3/4;border-radius:12px}
  .strip figcaption{display:block;padding-top:8px;font-size:12.4px}
  .rev-grid{grid-template-columns:1fr 1fr}
  .rev-card:nth-child(2){margin-top:0}
  .rev-card:nth-child(3){grid-column:1 / -1}
}

/* ============ 响应式 600 ============ */
@media (max-width:600px){
  body{font-size:15px}
  .wrap{padding:0 18px}
  .top-in{height:64px;gap:10px}
  .brand img{width:34px;height:34px}
  .brand-t b{font-size:16px;letter-spacing:1.2px}
  .brand-t small{font-size:9px;letter-spacing:.8px}
  .nav{top:64px;padding:6px 18px 12px}
  .cta{padding:9px 13px;font-size:11px}
  .hero{padding:36px 0 40px}
  .hero h1{font-size:42px;letter-spacing:2px}
  .hero .lead{font-size:16.5px}
  .hero .desc{font-size:13.8px}
  .kick{font-size:10.5px;letter-spacing:1.8px}
  .facts{gap:10px}
  .facts div{padding:8px 12px;border-radius:14px}
  .facts b{font-size:11.5px}
  .facts span{font-size:10px}
  .album{height:356px;max-width:346px}
  .seal{width:52px;height:52px;font-size:21px;left:-4px}
  .spine{display:none}
  .sec{padding:44px 0}
  .hd2{grid-template-columns:1fr;gap:9px;margin-bottom:24px}
  .hd2 .no{justify-self:start}
  .hd2 h2{font-size:25px}
  .hd2 p{font-size:13.4px}
  .feat-grid{grid-template-columns:1fr}
  .card{padding:20px 18px 22px}
  .strip{grid-template-columns:1fr}
  .strip figure{grid-template-columns:78px 1fr;display:grid;padding:10px}
  .strip img{width:78px;height:104px}
  .steps li{padding-left:54px;font-size:13.6px}
  .steps::before{left:18px}
  .steps b{width:38px;height:38px;font-size:11px}
  .qa-item{grid-template-columns:40px 1fr;gap:12px;padding:17px 16px}
  .qa-item .qn{width:32px;height:32px}
  .qa-item h3{font-size:15.5px}
  .rev-grid{grid-template-columns:1fr}
  .rev-card:nth-child(3){grid-column:auto}
  .get{padding:46px 0 52px}
  .get-in{border-radius:26px;padding:42px 20px 44px}
  .get h2{font-size:26px;letter-spacing:1.2px}
  .dm span{font-size:10.4px;padding:4px 11px}
  .ft-in{flex-direction:column}
  .backtop{right:14px;bottom:140px;width:40px;height:40px}
}