:root{
  --ink:#1a1424;
  --ink-soft:#4b4258;
  --cream:#fff8ef;
  --paper:#f7efe4;
  --rose:#e6396b;
  --rose-deep:#a81f4a;
  --violet:#6b3fa0;
  --violet-deep:#2b1b46;
  --amber:#f2a03d;
  --mint:#2f9e8f;
  --mint-soft:#e3f4f0;
  --line:rgba(26,20,36,.12);
  --radius:18px;
  --shadow:0 14px 34px rgba(43,27,70,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  background:var(--cream);
  color:var(--ink);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.3;font-weight:800}
h1{font-size:clamp(1.7rem,4.4vw,2.9rem)}
h2{font-size:clamp(1.4rem,3vw,2.1rem)}
h3{font-size:1.06rem}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(43,27,70,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{
  max-width:1200px;margin:0 auto;padding:.6rem 1.2rem;
  display:flex;align-items:center;gap:1rem;flex-wrap:wrap;
}
.brand{display:flex;align-items:center;gap:.55rem;color:#fff;font-weight:800;letter-spacing:.5px}
.brand img{height:32px;width:auto;border-radius:8px}
.brand span{font-size:1.08rem}
.nav-toggle{
  display:none;margin-left:auto;background:rgba(255,255,255,.1);color:#fff;
  border:1px solid rgba(255,255,255,.22);border-radius:10px;padding:.35rem .75rem;
  font-size:.85rem;cursor:pointer;
}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;flex-wrap:wrap;gap:.15rem;list-style:none}
.main-nav a{
  display:block;padding:.42rem .7rem;border-radius:9px;color:#e7ddf5;
  font-size:.88rem;transition:color .2s,background .2s;
}
.main-nav a:hover{color:#fff;background:var(--rose)}
.main-nav a.is-active{color:#ffd9e6;background:rgba(230,57,107,.25)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 16% 18%,rgba(230,57,107,.42),transparent 46%),
    radial-gradient(circle at 84% 76%,rgba(107,63,160,.55),transparent 52%),
    linear-gradient(150deg,#241536,#3b2158 58%,#1d1229);
  color:#fff;
  padding:2.4rem 1.2rem 0;
}
.hero-inner{max-width:1200px;margin:0 auto;display:grid;gap:2rem;grid-template-columns:1fr}
.hero-copy .eyebrow{
  display:inline-block;font-size:.78rem;letter-spacing:2px;
  color:#ffd6a8;border:1px solid rgba(242,160,61,.5);border-radius:999px;
  padding:.18rem .8rem;margin-bottom:1rem;
}
.hero-copy h1{color:#fff;margin-bottom:.9rem}
.hero-copy h1 em{
  font-style:normal;background:linear-gradient(90deg,#ff8fb1,#f2a03d);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-copy p{color:#d8cde9;max-width:46ch;margin-bottom:1rem}
.hero-points{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.4rem;list-style:none}
.hero-points li{
  font-size:.82rem;padding:.3rem .75rem;border-radius:999px;
  background:rgba(255,255,255,.1);color:#f3ecff;
}
.dl-row{display:flex;flex-wrap:wrap;gap:.6rem}
.dl-btn{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.62rem 1.15rem;border-radius:14px;font-weight:700;font-size:.9rem;
  background:linear-gradient(135deg,var(--rose),#f2703f);color:#fff;
  box-shadow:0 8px 20px rgba(230,57,107,.32);transition:transform .18s;
}
.dl-btn:hover{transform:translateY(-2px)}
.dl-btn.ghost{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.3);box-shadow:none}
.dl-note{font-size:.78rem;color:#b8a9cd;margin-top:.7rem}

.hero-visual{position:relative;display:grid;gap:.7rem;grid-template-columns:1fr 1fr 1fr}
.hero-visual figure{
  border-radius:16px;overflow:hidden;box-shadow:var(--shadow);
  background:#2b1b46;position:relative;
}
.hero-visual figure:nth-child(2){transform:translateY(1.5rem)}
.hero-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/4}
.hero-visual figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:.35rem .5rem;
  font-size:.72rem;color:#fff;background:linear-gradient(transparent,rgba(20,10,35,.88));
}

/* marquee */
.marquee{
  margin-top:2rem;background:rgba(0,0,0,.28);border-top:1px solid rgba(255,255,255,.1);
  overflow:hidden;white-space:nowrap;
}
.marquee-track{display:inline-block;padding:.7rem 0;animation:slide 38s linear infinite}
.marquee-track span{
  display:inline-block;margin:0 1.4rem;font-weight:800;font-size:.92rem;
  background:linear-gradient(90deg,#ff5f8f,#ffb347,#8f6bff,#38d6c3);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- generic section ---------- */
section{scroll-margin-top:74px}
.section{padding:3rem 1.2rem}
.wrap{max-width:1200px;margin:0 auto}
.sec-head{margin-bottom:1.8rem}
.sec-head .kicker{font-size:.78rem;letter-spacing:2px;color:var(--rose-deep);font-weight:700}
.sec-head h2{margin:.25rem 0 .5rem}
.sec-head p{color:var(--ink-soft);max-width:62ch}
.bg-classic{background:var(--paper)}
.bg-night{background:linear-gradient(160deg,#1b1130,#2b1b46 60%,#201430);color:#ece4f7}
.bg-night .sec-head .kicker{color:#ffb7c9}
.bg-night .sec-head p{color:#c6b7db}
.bg-origin{background:var(--mint-soft)}
.bg-full{background:#fff}
.bg-ai{background:linear-gradient(150deg,#fff4e6,#ffe8d6)}
.bg-review{background:#fdf3f6}
.bg-safe{background:#eef2f7}
.bg-fb{background:#f8f6fb}

/* classic: alternating wide rows */
.classic-list{display:grid;gap:1.1rem}
.classic-item{
  display:grid;grid-template-columns:120px 1fr;gap:1rem;align-items:center;
  background:#fff;border-radius:var(--radius);padding:.8rem;box-shadow:var(--shadow);
}
.classic-item img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:12px}
.classic-item h3{margin-bottom:.2rem}
.classic-item .tags{display:flex;flex-wrap:wrap;gap:.35rem;margin:.4rem 0}
.classic-item .tags span{font-size:.72rem;background:#f3e9dd;color:#8a5a2b;border-radius:6px;padding:.1rem .45rem}
.classic-item p{font-size:.86rem;color:var(--ink-soft)}
.classic-item time{display:block;font-size:.74rem;color:#9a8fa8;margin-top:.3rem}

/* night: timeline */
.timeline{list-style:none;position:relative;padding-left:1.6rem}
.timeline::before{
  content:"";position:absolute;left:.42rem;top:.4rem;bottom:.4rem;width:2px;
  background:linear-gradient(#ff8fb1,#8f6bff);
}
.timeline li{position:relative;padding:.55rem 0 .85rem 0;border-bottom:1px dashed rgba(255,255,255,.14)}
.timeline li::before{
  content:"";position:absolute;left:-1.35rem;top:1rem;width:.62rem;height:.62rem;border-radius:50%;
  background:#ffb7c9;box-shadow:0 0 0 4px rgba(255,183,201,.18);
}
.timeline .t-time{font-weight:800;color:#ffd36e;font-size:.9rem}
.timeline .t-title{font-weight:700;margin:.1rem 0}
.timeline .t-desc{font-size:.83rem;color:#c6b7db}
.night-extra{display:grid;gap:1rem;grid-template-columns:1fr;margin-top:1.6rem}
.night-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:1rem}
.night-card h3{color:#ffd6e2;margin-bottom:.4rem}
.night-card p{font-size:.85rem;color:#c6b7db}

/* origin: q&a */
.qa-grid{display:grid;gap:.8rem}
.qa-item{background:#fff;border-radius:14px;padding:1rem 1.1rem;border-left:4px solid var(--mint)}
.qa-item h3{font-size:.96rem;margin-bottom:.3rem;color:#1c5a52}
.qa-item p{font-size:.86rem;color:var(--ink-soft)}

/* full list: compact grid */
.full-grid{display:grid;gap:1rem;grid-template-columns:repeat(2,1fr)}
.full-card{background:#fff;border-radius:14px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.full-card img{width:100%;aspect-ratio:3/4;object-fit:cover}
.full-card .fc-body{padding:.7rem .8rem}
.full-card h3{font-size:.92rem;margin-bottom:.2rem}
.full-card .meta{font-size:.72rem;color:#9a8fa8}
.full-card p{font-size:.8rem;color:var(--ink-soft);margin-top:.3rem}

/* ai: horizontal scroll rail */
.rail{display:flex;gap:1rem;overflow-x:auto;padding:.4rem .2rem 1rem;scroll-snap-type:x mandatory}
.rail::-webkit-scrollbar{height:8px}
.rail::-webkit-scrollbar-thumb{background:rgba(242,160,61,.6);border-radius:8px}
.rail-card{
  flex:0 0 210px;scroll-snap-align:start;background:#fff;border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow);border:1px solid #ffe3c9;
}
.rail-card img{width:100%;aspect-ratio:3/4;object-fit:cover}
.rail-card .rc-body{padding:.65rem .75rem}
.rail-card h3{font-size:.9rem;color:#8a4b12}
.rail-card p{font-size:.78rem;color:#7a6a58}

/* review wall */
.review-grid{display:grid;gap:.9rem;grid-template-columns:1fr}
.review-card{
  background:#fff;border-radius:16px;padding:1rem;box-shadow:var(--shadow);
  display:grid;grid-template-columns:44px 1fr;gap:.8rem;align-items:start;
}
.review-card img{width:44px;height:44px;border-radius:50%;object-fit:cover;border:2px solid #ffd3e2}
.review-card .rv-name{font-weight:700;font-size:.86rem;color:var(--rose-deep)}
.review-card .rv-text{font-size:.86rem;color:var(--ink-soft);margin-top:.15rem}
.review-card .rv-tag{font-size:.72rem;color:#a98ab5;margin-top:.3rem}

/* safe + feedback */
.two-col{display:grid;gap:1.4rem;grid-template-columns:1fr}
.safe-list,.fb-list{list-style:none;display:grid;gap:.55rem}
.safe-list li,.fb-list li{
  background:#fff;border-radius:12px;padding:.65rem .85rem;font-size:.86rem;
  color:var(--ink-soft);border:1px solid var(--line);
}
.safe-list li strong,.fb-list li strong{color:var(--ink)}
.safe-note{
  background:#fff;border-radius:14px;padding:1rem;border:1px dashed #b9c8dd;
  font-size:.86rem;color:#4f5f75;margin-top:1rem;
}
.fb-card{background:#fff;border-radius:14px;padding:1rem;box-shadow:var(--shadow)}
.fb-card h3{margin-bottom:.5rem;color:#4a3c66}

/* install */
.steps{display:grid;gap:.9rem;grid-template-columns:1fr;counter-reset:step}
.step{
  background:#fff;border-radius:14px;padding:1rem 1rem 1rem 3rem;position:relative;
  box-shadow:var(--shadow);font-size:.88rem;color:var(--ink-soft);
}
.step::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:1rem;top:1rem;width:1.5rem;height:1.5rem;border-radius:50%;
  background:linear-gradient(135deg,var(--violet),var(--rose));color:#fff;
  font-size:.8rem;font-weight:800;display:grid;place-items:center;
}
.step strong{color:var(--ink);display:block;margin-bottom:.15rem}

/* download zone */
.dl-zone{
  background:linear-gradient(140deg,#2b1b46,#4a2760 55%,#1d1229);color:#fff;
  border-radius:22px;padding:2rem 1.4rem;text-align:center;
}
.dl-zone h2{color:#fff;margin-bottom:.5rem}
.dl-zone > p{color:#cfc1e3;max-width:56ch;margin:0 auto 1.4rem}
.dl-zone .dl-row{justify-content:center}
.dl-fine{font-size:.76rem;color:#a493bd;margin-top:1rem}

/* footer */
.site-footer{
  background:#161020;color:#8e83a3;padding:2rem 1.2rem 2.6rem;font-size:.78rem;
  text-align:center;
}
.footer-inner{max-width:900px;margin:0 auto;display:grid;gap:.9rem}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:.3rem 1.1rem}
.footer-links a{color:#b5a9c8}
.footer-links a:hover{color:#fff}
.footer-copy{color:#7d7292}
.footer-time{color:#6f6585}
.footer-beian a{color:#9a8fb0}

/* floating download */
.float-dl{
  position:fixed;left:50%;bottom:16px;transform:translateX(-50%);
  z-index:80;display:inline-flex;align-items:center;gap:.5rem;
  padding:.55rem .95rem;border-radius:999px;
  background:linear-gradient(135deg,var(--rose),#f2703f);color:#fff;
  font-weight:800;font-size:.86rem;box-shadow:0 10px 26px rgba(230,57,107,.45);
  border:1px solid rgba(255,255,255,.35);
}
.float-dl img{height:22px;width:22px;border-radius:6px;object-fit:cover}
.float-dl:hover{filter:brightness(1.06)}

/* copy modal */
.copy-modal{
  position:fixed;inset:0;z-index:120;display:none;place-items:center;
  background:rgba(16,10,26,.62);padding:1.2rem;
}
.copy-modal.is-open{display:grid}
.copy-box{
  background:#fff;border-radius:18px;padding:1.4rem 1.2rem;max-width:380px;width:100%;
  text-align:center;box-shadow:0 24px 60px rgba(0,0,0,.3);
}
.copy-box p{font-size:.86rem;color:var(--ink-soft);margin-bottom:.8rem}
.copy-box input{
  width:100%;padding:.6rem .7rem;border-radius:10px;border:1px solid var(--line);
  font-size:.82rem;color:var(--ink);margin-bottom:.9rem;background:#faf7ff;
}
.copy-box button{
  width:100%;padding:.6rem;border:none;border-radius:12px;cursor:pointer;
  background:linear-gradient(135deg,var(--rose),#f2703f);color:#fff;font-weight:800;font-size:.9rem;
}
.copy-box .close-x{
  display:block;margin-top:.6rem;font-size:.78rem;color:#9a8fa8;cursor:pointer;
  background:none;border:none;width:100%;
}

/* breakpoints */
@media (min-width:768px){
  .hero-inner{grid-template-columns:1.05fr 1fr;align-items:center}
  .full-grid{grid-template-columns:repeat(3,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .qa-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .night-extra{grid-template-columns:1.4fr 1fr}
  .two-col{grid-template-columns:1.15fr .85fr}
}
@media (min-width:1024px){
  .classic-item{grid-template-columns:150px 1fr}
  .classic-list{grid-template-columns:repeat(2,1fr)}
  .full-grid{grid-template-columns:repeat(4,1fr)}
  .review-grid{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(4,1fr)}
  .hero{padding-top:3.2rem}
}
@media (max-width:767px){
  .nav-toggle{display:inline-block}
  .main-nav{display:none;width:100%;margin-left:0;order:3}
  .main-nav.is-open{display:block}
  .main-nav ul{flex-direction:column;gap:.1rem;padding:.4rem 0 .2rem}
  .main-nav a{padding:.55rem .7rem;font-size:.9rem}
  .hero-visual{grid-template-columns:1fr 1fr;max-width:420px}
  .hero-visual figure:nth-child(3){display:none}
  .hero-visual figure:nth-child(2){transform:none}
  .classic-item{grid-template-columns:92px 1fr}
  .float-dl{font-size:.8rem;padding:.5rem .8rem;bottom:12px}
}