:root{
  --ink:#10182b;
  --ink-2:#1c2740;
  --ink-3:#2a3a5f;
  --bg:#f4f5f7;
  --card:#ffffff;
  --line:#e3e6ec;
  --muted:#6b7280;
  --muted-2:#9aa3b2;
  --gold:#c9a24b;
  --gold-deep:#a97f2f;
  --text:#232a38;
  --ok:#2e8b57;
  --shadow:0 10px 30px rgba(16,24,43,.06);
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:15px;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1140px;margin:0 auto;padding:0 20px}

/* ---------- Top bar ---------- */
.topbar{
  background:var(--ink);
  color:#cfd6e4;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:52px;font-size:13px}
.topbar .brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:600;font-size:15px;letter-spacing:.5px}
.topbar .brand img{width:26px;height:26px;border-radius:6px}
.topbar .brand b{color:var(--gold);font-weight:700}
.topbar .tagline{color:#8fa0bf;letter-spacing:3px}
nav.main-nav{background:var(--ink);box-shadow:0 1px 0 rgba(255,255,255,.05)}
nav.main-nav .container{display:flex;gap:4px;flex-wrap:wrap}
nav.main-nav a{
  display:block;padding:13px 18px;color:#c3cbdb;font-size:14.5px;
  transition:color .2s,background .2s;border-radius:6px 6px 0 0;
}
nav.main-nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
nav.main-nav a.on{color:#fff;background:rgba(255,255,255,.08)}
nav.main-nav a.on::after{content:"";display:block;height:2px;background:var(--gold);margin-top:8px;border-radius:2px}

/* ---------- Hero (首页) ---------- */
.hero{
  background:
    radial-gradient(1000px 420px at 85% -10%, rgba(201,162,75,.16), transparent 60%),
    radial-gradient(900px 400px at -10% 110%, rgba(28,39,64,.9), transparent 60%),
    var(--ink);
  color:#dfe5f0;padding:64px 0 56px;
}
.hero .grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.hero .crumb{color:#8fa0bf;font-size:13px;margin-bottom:16px;letter-spacing:1px}
.hero h1{font-size:34px;line-height:1.3;color:#fff;font-weight:700;letter-spacing:.5px}
.hero h1 span{color:var(--gold)}
.hero .sub{margin-top:16px;color:#b8c3d7;font-size:15.5px;max-width:560px}
.hero .meta{margin-top:22px;display:flex;flex-wrap:wrap;gap:22px;font-size:13.5px;color:#9fb0cf}
.hero .meta i{font-style:normal;color:var(--gold);margin-right:6px}
.hero .cta{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.hero .nc{font-size:12.5px;color:#7e8fae;margin-top:12px}
.hero .shot{border-radius:12px;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.5);border:1px solid rgba(255,255,255,.08)}
.hero .shot img{width:100%}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;padding:13px 26px;border-radius:10px;
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;transition:.22s;
  user-select:none;
}
.btn svg{width:17px;height:17px;fill:currentColor}
.btn-primary{background:linear-gradient(135deg,#d8b15e,#b9882f);color:#1b1505;border-color:#cfa855}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(201,162,75,.35)}
.btn-ghost{background:transparent;color:#dfe5f0;border-color:rgba(255,255,255,.25)}
.btn-ghost:hover{background:rgba(255,255,255,.08)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--ink-2)}
.btn-gold-outline{background:#fff;color:#8a6a22;border-color:#dcc98f}
.btn-gold-outline:hover{background:#faf6ea}

/* ---------- Sections ---------- */
.section{padding:56px 0}
.section.alt{background:#eceef2}
.section-head{margin-bottom:34px}
.section-head .tag{display:inline-block;font-size:12.5px;letter-spacing:2px;color:var(--gold-deep);margin-bottom:10px;font-weight:600}
.section-head h2{font-size:26px;color:var(--ink);font-weight:700;letter-spacing:.5px}
.section-head p{color:var(--muted);margin-top:8px;max-width:640px;font-size:14.5px}

/* ---------- Cards / grid ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);transition:.22s;
}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(16,24,43,.1)}
.card .ic{width:46px;height:46px;border-radius:10px;background:linear-gradient(135deg,#1c2740,#10182b);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card .ic svg{width:24px;height:24px;fill:var(--gold)}
.card h3{font-size:17px;color:var(--ink);margin-bottom:8px}
.card p{font-size:14px;color:var(--muted)}

/* ---------- Feature 列表 ---------- */
.feature-list .item{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line)}
.feature-list .item:last-child{border-bottom:none}
.feature-list .dot{flex:none;width:8px;height:8px;margin-top:8px;border-radius:50%;background:var(--gold)}
.feature-list .item b{color:var(--ink);font-weight:600}
.feature-list .item span{display:block;color:var(--muted);font-size:13.5px}

/* ---------- 下载卡片 ---------- */
.dlbox{
  background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow);margin-bottom:22px;
}
.dlbox .hd{background:var(--ink);color:#fff;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}
.dlbox .hd b{font-size:16px;letter-spacing:.5px}
.dlbox .hd .ver{background:rgba(201,162,75,.18);color:#e6c77e;padding:3px 12px;border-radius:20px;font-size:12.5px}
.dlbox .bd{padding:24px}
.dlbox .rows{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin-bottom:20px}
.dlbox .rows .kv{background:#f7f8fa;border:1px solid var(--line);border-radius:10px;padding:12px 16px}
.dlbox .rows .kv b{display:block;font-size:12px;color:var(--muted-2);font-weight:400;letter-spacing:1px;margin-bottom:4px}
.dlbox .rows .kv span{color:var(--ink);font-weight:600;font-size:14px}

.disk-btns{display:flex;gap:14px;flex-wrap:wrap}
.disk-btns .btn{flex:1;min-width:210px;justify-content:center}
.btn-quark{background:linear-gradient(135deg,#3468de,#1c43a8);color:#fff}
.btn-quark:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(52,104,222,.3)}
.btn-baidu{background:linear-gradient(135deg,#2f6fd6,#1e4f9e);color:#fff}
.btn-baidu:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(47,111,214,.3)}
.note-tip{margin-top:14px;font-size:13px;color:var(--muted-2)}

/* ---------- 版本对比 ---------- */
.cmp{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cmp .col{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px;text-align:center;box-shadow:var(--shadow);transition:.22s;position:relative}
.cmp .col:hover{transform:translateY(-4px)}
.cmp .col.hot{border-color:var(--gold);box-shadow:0 16px 44px rgba(201,162,75,.16)}
.cmp .col .badge{position:absolute;top:-11px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,#d8b15e,#b9882f);color:#1b1505;font-size:12px;padding:3px 14px;border-radius:20px;font-weight:600;white-space:nowrap}
.cmp .col .name{font-size:18px;color:var(--ink);font-weight:700}
.cmp .col .price{font-size:13px;color:var(--gold-deep);margin:6px 0 16px}
.cmp .col ul{list-style:none;margin-bottom:20px}
.cmp .col ul li{font-size:13.5px;color:var(--muted);padding:6px 0;border-bottom:1px dashed var(--line)}
.cmp .col ul li.on{color:var(--text)}
.cmp .col ul li.off{color:#c3c9d4;text-decoration:line-through}

/* ---------- Screens ---------- */
.screens{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.screens .s{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow);transition:.22s}
.screens .s:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(16,24,43,.1)}
.screens .s img{width:100%;aspect-ratio:4/3;object-fit:cover;background:#eef0f4}
.screens .s .cap{padding:12px 16px;font-size:13.5px;color:var(--ink);font-weight:500}
.screens .s .cap small{display:block;color:var(--muted-2);font-weight:400;font-size:12px;margin-top:2px}

/* ---------- 工具分类 ---------- */
.toolcat{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.toolcat a{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;transition:.2s}
.toolcat a:hover{border-color:var(--gold);transform:translateY(-3px);box-shadow:var(--shadow)}
.toolcat a .n{font-size:20px;color:var(--gold-deep);font-weight:700}
.toolcat a b{display:block;margin-top:6px;font-size:15px;color:var(--ink)}
.toolcat a small{color:var(--muted-2);font-size:12.5px}

/* ---------- FAQ ---------- */
.faq .q{border:1px solid var(--line);border-radius:12px;background:var(--card);padding:20px 24px;margin-bottom:14px;box-shadow:0 4px 14px rgba(16,24,43,.04)}
.faq .q b{color:var(--ink);font-size:15.5px;display:block;margin-bottom:8px}
.faq .q b::before{content:"Q";color:var(--gold);font-weight:800;margin-right:10px}
.faq .q p{color:var(--muted);font-size:14px}

/* ---------- 面包屑 ---------- */
.bread{background:#e9ebf0;padding:14px 0;font-size:13px;color:var(--muted)}
.bread .container{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.bread a{color:var(--ink-3)}
.bread a:hover{color:var(--gold-deep)}
.bread .sep{color:#b6bdc9}

/* ---------- 文章页 ---------- */
.page-body{background:#fff;border:1px solid var(--line);border-radius:16px;padding:40px 44px;box-shadow:var(--shadow);margin:40px 0}
.page-body h2{font-size:22px;color:var(--ink);margin:30px 0 14px;padding-left:14px;border-left:4px solid var(--gold);line-height:1.4}
.page-body h2:first-child{margin-top:0}
.page-body p{color:#3d4757;margin-bottom:14px;font-size:14.5px}
.page-body ul, .page-body ol{margin:0 0 16px 22px;color:#3d4757}
.page-body li{margin-bottom:8px;font-size:14.5px}
.page-body .step{display:flex;gap:16px;margin-bottom:26px;align-items:flex-start}
.page-body .step .no{flex:none;width:34px;height:34px;border-radius:50%;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;margin-top:2px}
.page-body .step h4{color:var(--ink);font-size:16px;margin-bottom:6px}
.page-body .step p{color:var(--muted);margin:0;font-size:14px}
.page-body .step img{border:1px solid var(--line);border-radius:10px;margin-top:12px;max-height:520px}
.page-body .table-wrap{overflow-x:auto;margin:16px 0}
.page-body table{width:100%;border-collapse:collapse;font-size:13.5px}
.page-body table th{background:var(--ink);color:#fff;text-align:left;padding:10px 14px;white-space:nowrap}
.page-body table td{padding:10px 14px;border-bottom:1px solid var(--line);color:#3d4757}
.page-body table tr:nth-child(even) td{background:#f7f8fa}
.callout{background:#faf6ea;border:1px solid #eadfb4;border-radius:10px;padding:14px 18px;margin:18px 0;font-size:14px;color:#6b551d}

/* ---------- Modal ---------- */
.modal-mask{position:fixed;inset:0;background:rgba(10,15,28,.58);backdrop-filter:blur(3px);display:none;align-items:center;justify-content:center;z-index:999}
.modal-mask.show{display:flex;animation:fadeIn .2s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.modal{
  background:#fff;border-radius:18px;max-width:420px;width:calc(100% - 40px);
  padding:30px 30px 26px;text-align:center;position:relative;box-shadow:0 30px 80px rgba(0,0,0,.35);
}
.modal .x{position:absolute;top:14px;right:16px;border:none;background:none;font-size:22px;color:#9aa3b2;cursor:pointer;line-height:1}
.modal .x:hover{color:var(--ink)}
.modal h3{color:var(--ink);font-size:18px;margin-bottom:4px}
.modal .msub{color:var(--muted);font-size:13px;margin-bottom:16px}
.qr-frame{display:inline-block;position:relative;padding:14px;background:#fff;border-radius:14px;box-shadow:0 6px 24px rgba(16,24,43,.12);margin-bottom:16px}
.qr-frame img{width:164px;height:164px}
/* 呼吸边框 */
.qr-frame::after{
  content:"";position:absolute;inset:-3px;border-radius:18px;border:2.5px solid rgba(47,111,214,.6);
  animation:breath 2.6s ease-in-out infinite;pointer-events:none;
}
.qr-frame.q-quark::after{border-color:rgba(52,104,222,.65)}
.qr-frame.q-baidu::after{border-color:rgba(47,111,214,.65)}
@keyframes breath{
  0%,100%{box-shadow:0 0 0 0 rgba(47,111,214,.00)}
  50%{box-shadow:0 0 0 9px rgba(47,111,214,.16)}
}
.qr-frame:hover::after{animation-play-state:running}
.modal .dl-tip{font-size:13.5px;color:var(--ink);line-height:1.8;background:#f6f8fc;border-radius:10px;padding:12px 16px;text-align:left;margin:14px 0}
.modal .dl-tip b{color:var(--gold-deep)}
.modal .urgent{margin-top:14px;font-size:12.5px;color:#b0701f;line-height:1.7}

/* ---------- Footer ---------- */
footer{background:var(--ink);color:#8fa0bf;padding:34px 0 64px;margin-top:20px}
footer .container{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px}
footer a:hover{color:#fff}
footer .disclaimer{flex:1 1 100%;border-top:1px solid rgba(255,255,255,.07);padding-top:16px;margin-top:16px;color:#6f809f;font-size:12.5px;line-height:1.9}
footer .f-nav{display:flex;gap:18px;flex-wrap:wrap}
footer .ver{color:#4e5f80;font-size:12px}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .hero .grid{grid-template-columns:1fr}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .cmp{grid-template-columns:1fr}
  .screens{grid-template-columns:repeat(2,1fr)}
  .toolcat{grid-template-columns:repeat(2,1fr)}
  .page-body{padding:26px 20px}
  .topbar .tagline{display:none}
}
@media (max-width:560px){
  .grid-3,.grid-4,.screens{grid-template-columns:1fr}
  .hero h1{font-size:26px}
  .section{padding:40px 0}
  nav.main-nav a{padding:12px 13px;font-size:13.5px}
}