:root{
  --primary:#ff6b9d;
  --primary-deep:#e8548a;
  --deep:#3d3140;
  --deep-2:#4a3a44;
  --text:#4a3a44;
  --muted:#8a7a82;
  --border:#ffd9e6;
  --bg:#fff9fb;
  --card:#ffffff;
  --shadow:0 12px 28px rgba(255,107,157,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--text);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
img{display:block;width:100%;height:auto}
a{text-decoration:none;color:inherit}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.container{max-width:1160px;margin:0 auto;padding:0 24px}
.section{padding:84px 0}
.section-alt{background:var(--card)}
.section-head{text-align:center;max-width:640px;margin:0 auto 48px}
.section-tag{display:inline-block;font-size:13px;color:var(--primary-deep);background:rgba(255,107,157,.1);padding:4px 14px;border-radius:999px;margin-bottom:14px;letter-spacing:1px}
.section-head h2{font-size:clamp(26px,3vw,36px);color:var(--deep);margin-bottom:10px}
.section-head p{color:var(--muted);font-size:15px}

.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);border-bottom:1px solid var(--border);backdrop-filter:blur(8px)}
.nav-inner{max-width:1160px;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:26px;height:64px}
.logo{font-size:22px;font-weight:800;color:var(--primary-deep);letter-spacing:1px;white-space:nowrap;flex-shrink:0}
.nav-menu{display:flex;gap:2px}
.nav-menu a{font-size:14.5px;color:var(--deep-2);padding:8px 11px;border-radius:8px;transition:color .2s,background .2s}
.nav-menu a:hover,.nav-menu a.active{color:var(--primary-deep);background:rgba(255,107,157,.08)}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;font-weight:600;transition:transform .2s,box-shadow .2s,background .2s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#fff;box-shadow:0 8px 20px rgba(255,107,157,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,107,157,.45)}
.btn-ghost{background:var(--card);color:var(--primary-deep);border:1.5px solid var(--primary)}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,107,157,.2)}
.btn-nav{font-size:13px;padding:8px 18px;margin-left:auto;background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#fff;box-shadow:0 6px 16px rgba(255,107,157,.35)}
.btn-nav:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,107,157,.45)}

.hero{padding:76px 0 88px;background:linear-gradient(180deg,#fff1f6 0%,var(--bg) 100%)}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;align-items:center;gap:56px}
.hero h1{font-size:clamp(30px,4vw,44px);color:var(--deep);line-height:1.25;margin-bottom:18px}
.ver{display:inline-block;font-size:.5em;color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-deep));padding:4px 14px;border-radius:999px;vertical-align:middle;margin-left:8px}
.hero-desc{font-size:16.5px;color:var(--deep-2);max-width:560px;margin-bottom:28px}
.hero-btns{display:flex;gap:16px;margin-bottom:30px}
.hero-btns .btn{font-size:16px;padding:14px 30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags li{font-size:13px;color:var(--muted);border:1px solid var(--border);background:var(--card);padding:5px 14px;border-radius:999px}
.hero-img{width:300px;justify-self:end;position:relative}
.hero-img img{aspect-ratio:2/3;object-fit:cover;border-radius:22px;box-shadow:0 24px 48px rgba(255,107,157,.3)}
.hero-img::after{content:"";position:absolute;inset:auto -18px -18px auto;width:150px;height:150px;border-radius:50%;background:radial-gradient(circle,rgba(255,107,157,.25),transparent 70%);z-index:-1}

.works-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.work-card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:10px;box-shadow:0 4px 14px rgba(255,107,157,.08);transition:transform .25s,box-shadow .25s}
.work-card img{aspect-ratio:2/3;object-fit:cover;border-radius:12px}
.work-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}

.intro-body{max-width:820px;margin:0 auto}
.intro-lead{font-size:17px;color:var(--deep-2);text-align:center;margin-bottom:40px}
.intro-points{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.intro-point{background:linear-gradient(180deg,#fff 0%,#fff5f9 100%);border:1px solid var(--border);border-radius:18px;padding:28px 24px;text-align:center;transition:transform .25s,box-shadow .25s}
.intro-point h3{font-size:18px;color:var(--deep);margin-bottom:8px}
.intro-point p{font-size:14px;color:var(--muted)}
.intro-point:hover{transform:translateY(-6px);box-shadow:var(--shadow)}

.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature-card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:30px 26px;transition:transform .25s,box-shadow .25s}
.feature-card svg{width:30px;height:30px;color:var(--primary);margin-bottom:14px}
.feature-card h3{font-size:18px;color:var(--deep);margin-bottom:8px}
.feature-card p{font-size:14px;color:var(--muted)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}

.compare-table{border:1px solid var(--border);border-radius:18px;overflow:hidden;background:var(--card)}
.compare-row{display:grid;grid-template-columns:.9fr 1.25fr 1fr 1fr;border-bottom:1px solid var(--border)}
.compare-row:last-child{border-bottom:none}
.compare-dim,.compare-item{padding:16px 18px;font-size:14.5px;display:flex;align-items:center;justify-content:center;text-align:center}
.compare-dim{color:var(--muted);background:#fff7fa;font-weight:600}
.compare-head .compare-dim,.compare-head .compare-item{background:var(--deep);color:#fff;font-weight:700;font-size:15.5px;border:none}
.compare-best{color:var(--primary-deep);font-weight:600;background:rgba(255,107,157,.06)}

.section-dark{background:linear-gradient(135deg,var(--deep-2),var(--deep))}
.section-dark h2{color:#fff}
.section-dark .section-head p{color:rgba(255,255,255,.72)}
.section-tag-dark{background:rgba(255,107,157,.22);color:#ffb6d0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:34px 20px;text-align:center;transition:transform .25s,background .25s}
.stat-item strong{display:block;font-size:clamp(28px,3.4vw,40px);color:var(--primary);margin-bottom:6px}
.stat-item span{font-size:14px;color:rgba(255,255,255,.78)}
.stat-item:hover{transform:translateY(-6px);background:rgba(255,255,255,.1)}

.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review-card{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:26px;transition:transform .25s,box-shadow .25s}
.review-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#fff;font-size:18px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.review-name{display:block;font-size:15.5px;font-weight:600;color:var(--deep);line-height:1.4}
.stars{display:block;font-size:13px;color:#ffb347;letter-spacing:2px;line-height:1.4}
.review-card p{font-size:14px;color:var(--deep-2)}
.review-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}

.version-card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:36px;display:grid;grid-template-columns:auto 1fr;gap:40px;align-items:center;box-shadow:0 4px 14px rgba(255,107,157,.08)}
.version-info{text-align:center;padding:0 24px;border-right:1px solid var(--border)}
.version-no{display:block;font-size:clamp(34px,4vw,46px);font-weight:800;color:var(--primary-deep);line-height:1.2}
.version-date{font-size:14px;color:var(--muted);margin-top:8px}
.version-log li{position:relative;padding-left:22px;font-size:15px;color:var(--deep-2);margin-bottom:12px}
.version-log li:last-child{margin-bottom:0}
.version-log li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:50%;background:var(--primary)}

.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:box-shadow .25s}
.faq-item.open{box-shadow:var(--shadow)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-size:16px;font-weight:600;color:var(--deep);text-align:left;transition:color .2s}
.faq-q:hover{color:var(--primary-deep)}
.faq-icon{position:relative;width:20px;height:20px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .3s}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.open .faq-icon::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 24px 20px;font-size:14.5px;color:var(--muted)}

.download{background:linear-gradient(180deg,var(--bg) 0%,#ffeaf2 100%);text-align:center}
.download-inner{display:flex;flex-direction:column;align-items:center}
.download h1{font-size:clamp(28px,3.6vw,42px);color:var(--deep);margin-bottom:14px}
.download-meta{font-size:14px;color:var(--muted);margin-bottom:32px}
.download-btns{display:flex;gap:18px;margin-bottom:22px}
.download-btns .btn{font-size:17px;padding:16px 38px}
.download-tip{font-size:14px;color:var(--muted)}

.footer{background:var(--deep);padding:26px 0;text-align:center}
.footer p{color:rgba(255,255,255,.7);font-size:14px}
.footer-link{color:#fff;font-weight:600}
.footer-link:hover{color:var(--primary)}

.to-top{position:fixed;right:28px;bottom:32px;width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#fff;font-size:20px;box-shadow:0 10px 24px rgba(255,107,157,.4);transition:transform .2s;z-index:99}
.to-top:hover{transform:translateY(-4px)}

@media (max-width:1024px){
  .container,.nav-inner{padding:0 20px}
  .nav-menu{gap:0}
  .nav-menu a{font-size:13.5px;padding:8px 8px}
  .features-grid,.reviews-grid,.intro-points{grid-template-columns:repeat(2,1fr)}
  .works-grid{grid-template-columns:repeat(2,1fr)}
  .hero-inner{gap:36px}
  .hero-img{width:260px}
}

@media (max-width:768px){
  .section{padding:60px 0}
  .section-head{margin-bottom:34px}
  .container,.nav-inner{padding:0 20px}
  .nav-menu{display:none}
  .hero{padding:52px 0 64px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-text{text-align:center}
  .hero-desc{margin-left:auto;margin-right:auto}
  .hero-btns{flex-direction:column;width:100%;max-width:420px;margin-left:auto;margin-right:auto}
  .hero-btns .btn{width:100%;padding:15px 0}
  .hero-tags{justify-content:center}
  .hero-img{width:100%;max-width:300px;justify-self:center}
  .works-grid,.features-grid,.reviews-grid,.intro-points{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .compare-row{grid-template-columns:1.05fr 1.25fr 1fr 1fr}
  .compare-dim,.compare-item{padding:12px 8px;font-size:12px}
  .compare-head .compare-dim,.compare-head .compare-item{font-size:12.5px}
  .version-card{grid-template-columns:1fr;gap:24px;padding:28px 24px}
  .version-info{border-right:none;border-bottom:1px solid var(--border);padding:0 0 20px}
  .download-meta{font-size:12px;white-space:nowrap}
  .download-btns{flex-direction:column;width:100%;max-width:420px}
  .download-btns .btn{width:100%;padding:16px 0}
  .faq-q{font-size:15px;padding:18px 18px}
  .faq-a p{padding:0 18px 18px}
  .to-top{right:16px;bottom:24px;width:42px;height:42px}
}