:root{
  --bg:#0e0a18;
  --bg2:#160f28;
  --card:rgba(255,255,255,.05);
  --card-border:rgba(168,130,255,.18);
  --purple:#a882ff;
  --purple-deep:#7c5cff;
  --pink:#ff9ad5;
  --text:#efe9ff;
  --muted:#aba0c9;
  --radius:20px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  overflow-x:hidden;
  min-height:100vh;
  display:flex;flex-direction:column;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 40px;width:100%}
section{padding:80px 0;position:relative}
.page-head{padding-top:60px}
.eyebrow{color:var(--purple);font-weight:600;letter-spacing:.18em;font-size:13px;text-transform:uppercase}
h2.title{font-size:34px;margin:10px 0 14px;font-weight:800;letter-spacing:.01em}
.sub{color:var(--muted);max-width:620px;font-size:16px}
main{flex:1}

/* ===== background glow ===== */
.glow{position:fixed;border-radius:50%;filter:blur(120px);opacity:.5;z-index:-1;pointer-events:none}
.glow.a{width:520px;height:520px;background:#6a3cff;top:-160px;left:-120px}
.glow.b{width:460px;height:460px;background:#ff5cc0;top:40%;right:-160px;opacity:.28}
.glow.c{width:480px;height:480px;background:#7c5cff;bottom:-180px;left:30%;opacity:.3}

/* ===== nav ===== */
nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(14,10,24,.6);border-bottom:1px solid var(--card-border)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px}
.brand img{width:30px;height:30px;border-radius:9px}
.navlinks{display:flex;gap:26px;font-size:15px;color:var(--muted)}
.navlinks a{transition:.15s;padding-bottom:2px;border-bottom:2px solid transparent}
.navlinks a:hover{color:var(--text)}
.navlinks a.active{color:var(--text);border-bottom-color:var(--purple)}
.navlinks a.nav-dl{display:inline-flex;align-items:center;line-height:1;background:linear-gradient(135deg,var(--purple-deep),var(--pink));color:#fff!important;padding:9px 18px;border-radius:999px;font-weight:600;font-size:14px;border:none!important}
@media(max-width:760px){.navlinks{gap:16px;font-size:14px}.navlinks .hide-sm{display:none}}

/* ===== buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;line-height:1;gap:9px;padding:15px 28px;border-radius:14px;font-weight:700;font-size:16px;transition:.2s;border:1px solid transparent}
.btn-primary{background:linear-gradient(135deg,var(--purple-deep),var(--pink));color:#fff;box-shadow:0 12px 40px -10px rgba(140,92,255,.7)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 48px -10px rgba(255,90,192,.6)}
.btn-ghost{background:var(--card);border-color:var(--card-border);color:var(--text)}
.btn-ghost:hover{border-color:var(--purple);background:rgba(168,130,255,.12)}
.cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}

/* ===== hero ===== */
.hero{padding-top:70px;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero h1{font-size:56px;line-height:1.08;font-weight:900;letter-spacing:.02em}
.hero h1 .grad{background:linear-gradient(120deg,var(--purple),var(--pink));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{margin:22px 0 12px;font-size:19px;color:var(--text)}
.hero p.lead2{color:var(--muted);font-size:16px;max-width:480px}
.meta{margin-top:18px;color:var(--muted);font-size:14px;display:flex;gap:18px;flex-wrap:wrap}
.meta b{color:var(--purple)}
.phone{justify-self:center;position:relative}
.phone .frame{width:250px;height:520px;border-radius:42px;background:linear-gradient(160deg,#221636,#160f28);border:1px solid var(--card-border);padding:14px;box-shadow:0 40px 90px -30px rgba(124,92,255,.55);position:relative}
.phone .screen{width:100%;height:100%;border-radius:30px;background:radial-gradient(circle at 50% 20%,#2a1d49,#140d24);overflow:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;padding:24px}
.phone .screen img{width:90px;height:90px;border-radius:24px;box-shadow:0 14px 30px -8px rgba(0,0,0,.6)}
.phone .screen .nm{font-size:23px;font-weight:800}
.phone .screen .live{margin-top:4px;background:linear-gradient(135deg,#ff5cc0,#ff8e3c);color:#fff;font-weight:700;font-size:13px;padding:7px 16px;border-radius:999px;animation:pulse 1.8s infinite}
.phone .screen .live.off{background:rgba(255,255,255,.08);color:var(--muted);animation:none}
.phone .screen .tip{color:var(--muted);font-size:12px;margin-top:auto}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(255,92,192,.5)}50%{box-shadow:0 0 0 14px rgba(255,92,192,0)}}
.float-star{position:absolute;width:32px;animation:floaty 4s ease-in-out infinite}
.float-star.s1{top:-14px;right:-6px}
.float-star.s2{bottom:30px;left:-22px;width:22px;animation-delay:1.5s}
@keyframes floaty{0%,100%{transform:translateY(0) rotate(-6deg)}50%{transform:translateY(-14px) rotate(8deg)}}
@media(max-width:860px){.hero{grid-template-columns:1fr;text-align:center}.hero h1{font-size:42px}.cta{justify-content:center}.meta{justify-content:center}.hero p.lead2{margin:0 auto}}

/* ===== profile ===== */
.profile-card{display:grid;grid-template-columns:auto 1fr;gap:30px;align-items:center;background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);padding:34px;backdrop-filter:blur(8px)}
.avatar{width:130px;height:130px;border-radius:50%;object-fit:cover;border:3px solid var(--purple);box-shadow:0 0 40px -6px rgba(168,130,255,.7)}
.profile-card h3{font-size:26px;font-weight:800;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.badge{font-size:12px;font-weight:700;background:rgba(168,130,255,.18);color:var(--purple);padding:4px 12px;border-radius:999px}
.profile-card .desc{color:var(--muted);margin:10px 0 16px}
.stats{display:flex;gap:30px;flex-wrap:wrap}
.stat .n{font-size:22px;font-weight:800;color:var(--purple)}
.stat .l{font-size:13px;color:var(--muted)}
.profile-links{margin-top:18px;display:flex;gap:12px;flex-wrap:wrap}
.chip{font-size:14px;padding:8px 16px;border-radius:999px;border:1px solid var(--card-border);color:var(--text);transition:.2s}
a.chip:hover{border-color:var(--pink);color:var(--pink)}
@media(max-width:640px){.profile-card{grid-template-columns:1fr;text-align:center;justify-items:center}.stats,.profile-links{justify-content:center}}

/* ===== features grid ===== */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:46px}
.feat{background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);padding:28px;transition:.25s}
.feat:hover{transform:translateY(-6px);border-color:var(--purple);background:rgba(168,130,255,.08)}
.feat .ic{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;background:linear-gradient(135deg,rgba(124,92,255,.3),rgba(255,154,213,.25));margin-bottom:16px}
.feat h4{font-size:18px;font-weight:800;margin-bottom:8px}
.feat p{color:var(--muted);font-size:14.5px}
@media(max-width:860px){.grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.grid{grid-template-columns:1fr}}

/* ===== home: feature preview row + link card ===== */
.more-link{display:inline-flex;align-items:center;gap:8px;margin-top:30px;color:var(--purple);font-weight:700;font-size:16px;transition:.2s}
.more-link:hover{gap:14px;color:var(--pink)}
.feat.linkcard{display:block}
.feat.linkcard .arrow{margin-top:14px;color:var(--purple);font-weight:700;font-size:14px}

/* ===== latest dynamics ===== */
.dyn-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:42px}
.dyn-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);overflow:hidden;transition:.25s}
.dyn-card:hover{transform:translateY(-6px);border-color:var(--purple);background:rgba(168,130,255,.08)}
.dyn-img{width:100%;height:170px;object-fit:cover;background:rgba(255,255,255,.04)}
.dyn-body{padding:20px;display:flex;flex-direction:column;gap:14px;flex:1}
.dyn-text{color:var(--text);font-size:15px;line-height:1.65;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}
.dyn-more{margin-top:auto;color:var(--purple);font-weight:700;font-size:14px}
.dyn-empty{grid-column:1/-1;text-align:center;color:var(--muted);padding:34px 0}
@media(max-width:860px){.dyn-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.dyn-grid{grid-template-columns:1fr}}

/* ===== changelog timeline ===== */
.timeline{margin-top:46px;position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--purple),transparent)}
.rel{position:relative;margin-bottom:30px}
.rel::before{content:"";position:absolute;left:-30px;top:6px;width:16px;height:16px;border-radius:50%;background:var(--purple);box-shadow:0 0 0 5px rgba(168,130,255,.15)}
.rel.latest::before{background:var(--pink);box-shadow:0 0 0 5px rgba(255,154,213,.22)}
.rel .ver{font-size:19px;font-weight:800;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tag-new{font-size:11px;font-weight:700;background:linear-gradient(135deg,var(--purple-deep),var(--pink));color:#fff;padding:3px 10px;border-radius:999px}
.rel .vc{font-size:13px;color:var(--muted);font-weight:500}
.rel p{color:var(--muted);margin-top:6px;font-size:15px}

/* ===== download ===== */
.dl{background:linear-gradient(135deg,rgba(124,92,255,.18),rgba(255,154,213,.14));border:1px solid var(--card-border);border-radius:28px;padding:60px 40px;text-align:center;margin-top:40px}
.dl h2{font-size:38px;font-weight:900;margin-bottom:14px}
.dl p{color:var(--muted);max-width:520px;margin:0 auto 32px}
.dl .cta{justify-content:center}
.dl small{display:block;margin-top:22px;color:var(--muted);font-size:13px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:50px;text-align:left}
.step{background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);padding:26px}
.step .num{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--purple-deep),var(--pink));display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:14px}
.step h4{font-size:17px;margin-bottom:6px}
.step p{color:var(--muted);font-size:14px}
@media(max-width:700px){.steps{grid-template-columns:1fr}}

/* ===== feedback ===== */
.fb-card{background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);padding:36px;margin-top:40px;max-width:680px}
.fb-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.fb-kind{flex:1;min-width:130px;padding:13px 14px;border-radius:12px;border:1px solid var(--card-border);background:rgba(255,255,255,.04);color:var(--text);font-size:15px;text-align:center;cursor:pointer;transition:.2s}
.fb-kind.on{border-color:var(--purple);background:rgba(168,130,255,.16);color:#fff;font-weight:600}
.fb-card label{display:block;font-size:14px;color:var(--muted);margin:0 0 8px}
.fb-card input,.fb-card textarea{width:100%;background:rgba(255,255,255,.04);border:1px solid var(--card-border);border-radius:12px;color:var(--text);font-size:15px;padding:13px 14px;font-family:inherit;transition:.2s}
.fb-card input:focus,.fb-card textarea:focus{outline:none;border-color:var(--purple);background:rgba(168,130,255,.08)}
.fb-card textarea{min-height:130px;resize:vertical;margin-bottom:16px}
.fb-card input{margin-bottom:18px}
.fb-submit{width:100%;border:none;cursor:pointer}
.fb-submit:disabled{opacity:.6;cursor:not-allowed}
.fb-msg{margin-top:14px;font-size:14.5px;text-align:center;min-height:20px}
.fb-msg.ok{color:#7cffb0}
.fb-msg.err{color:#ff8e8e}

/* ===== footer ===== */
footer{padding:48px 0;border-top:1px solid var(--card-border);text-align:center;color:var(--muted);font-size:13.5px;margin-top:40px}
footer .brand{justify-content:center;margin-bottom:14px;color:var(--text)}
footer p{margin:4px 0}
.beian{display:flex;gap:22px;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:12px}
.beian a{display:inline-flex;align-items:center;gap:6px;color:inherit;text-decoration:none}
.beian a:hover{color:var(--pink)}
.beian img{width:16px;height:16px}

/* ===== pinned / 瞳瞳空间 ===== */
#pinnedBox{display:flex;flex-direction:column;gap:20px;margin-top:42px}
.pinned-card{display:flex;gap:22px;align-items:flex-start;background:var(--card);border:1px solid var(--card-border);border-radius:var(--radius);padding:28px 30px;backdrop-filter:blur(8px);transition:.25s}
a.pinned-card:hover{border-color:var(--purple);background:rgba(168,130,255,.08)}
.pinned-card .pin-ic{font-size:28px;flex-shrink:0;line-height:1.3}
.pinned-card .pin-text{color:var(--text);font-size:15.5px;line-height:1.8;white-space:pre-wrap}
.pinned-card .pin-img{width:100%;max-width:260px;border-radius:14px;margin-top:14px}
.pinned-card .pin-more{margin-top:16px;color:var(--purple);font-weight:700;font-size:14px}
@media(max-width:560px){.pinned-card{flex-direction:column;gap:14px;padding:24px}}

@media(max-width:560px){.wrap{padding:0 20px}}