/* =====================================================
   言有益 · 软件科技模板（tech）
   深色科技风 / 纯 CSS，无第三方依赖
   ===================================================== */
:root{
  --bg:#050810;
  --bg-2:#080e1b;
  --card:#0c1424;
  --card-2:#101a2d;
  --line:rgba(120,160,220,.16);
  --line-strong:rgba(120,180,255,.3);
  --txt:#e8f1ff;
  --muted:#8ea6c8;
  --dim:#5f7699;
  --accent:#00d5ff;
  --accent-2:#7b5cff;
  --green:#2ee6a8;
  --amber:#ffc247;
  --radius:16px;
  --shadow:0 20px 50px -20px rgba(0,0,0,.85);
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg);
  color:var(--txt);
  font-family:"Inter","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:15px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5,p{margin:0;}
button,input{font-family:inherit;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.grad-text{
  background:linear-gradient(100deg,#5ff0ff 0%,#00d5ff 35%,#7b5cff 100%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}

/* ---------- 顶部公告条 ---------- */
.topbar{
  background:linear-gradient(90deg,rgba(0,213,255,.12),rgba(123,92,255,.12));
  border-bottom:1px solid var(--line);
  font-size:12.5px;color:var(--muted);
}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:38px;gap:16px;}
.topbar .dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--green);margin-right:7px;box-shadow:0 0 10px var(--green);}
.topbar-right{display:flex;align-items:center;gap:18px;}
.topbar a:hover{color:var(--accent);}

/* ---------- 导航 ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(5,8,16,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:70px;gap:24px;}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  display:block;object-fit:cover;
  border:1px solid var(--line-strong);
  box-shadow:0 0 22px rgba(0,213,255,.35);
}
.logo-txt strong{display:block;font-size:16px;letter-spacing:.5px;}
.logo-txt span{display:block;font-size:11px;color:var(--dim);letter-spacing:2px;text-transform:uppercase;}
.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.nav-links a{
  padding:8px 15px;border-radius:9px;font-size:14px;color:var(--muted);
  transition:.25s;border:1px solid transparent;
}
.nav-links a:hover{color:var(--txt);background:rgba(255,255,255,.05);}
.nav-links a.active{color:#04121c;background:linear-gradient(120deg,var(--accent),#48b6ff);font-weight:600;}
.nav-tools{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.search-mini{position:relative;}
.search-mini input{
  width:200px;height:38px;border-radius:10px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--txt);padding:0 38px 0 14px;font-size:13.5px;outline:none;
  transition:.25s;
}
.search-mini input::placeholder{color:var(--dim);}
.search-mini input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,213,255,.13);width:240px;}
.search-mini button{
  position:absolute;right:6px;top:5px;width:28px;height:28px;border:0;border-radius:8px;
  background:linear-gradient(130deg,var(--accent),var(--accent-2));color:#04121c;cursor:pointer;font-size:14px;
}
.nav-toggle{display:none;background:none;border:1px solid var(--line);color:var(--muted);border-radius:9px;width:38px;height:38px;font-size:18px;cursor:pointer;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:88px 0 72px;border-bottom:1px solid var(--line);}
.hero:before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 460px at 78% 8%,rgba(123,92,255,.22),transparent 65%),
    radial-gradient(760px 420px at 12% 88%,rgba(0,213,255,.18),transparent 62%);
}
.hero:after{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(120,180,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.07) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(circle at 50% 30%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 20%,transparent 78%);
}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;margin-bottom:24px;
  border:1px solid rgba(0,213,255,.35);background:rgba(0,213,255,.07);
  color:#9be9ff;font-size:12.5px;letter-spacing:.4px;
}
.hero h1{font-size:52px;line-height:1.14;letter-spacing:-1px;font-weight:800;}
.hero h1 em{font-style:normal;}
.hero p.lead{color:var(--muted);font-size:16.5px;margin-top:22px;max-width:560px;}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:9px;justify-content:center;
  padding:13px 26px;border-radius:11px;font-size:14.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:.25s;white-space:nowrap;
}
.btn-primary{background:linear-gradient(120deg,var(--accent),#4c9dff 60%,var(--accent-2));color:#03111c;box-shadow:0 12px 30px -12px rgba(0,213,255,.7);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px -14px rgba(0,213,255,.85);}
.btn-ghost{border-color:var(--line-strong);color:var(--txt);background:rgba(255,255,255,.03);}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:var(--accent);}
.hero-stats{display:flex;gap:38px;margin-top:44px;flex-wrap:wrap;}
.hero-stats b{display:block;font-size:26px;font-weight:800;letter-spacing:-.5px;}
.hero-stats span{display:block;color:var(--dim);font-size:12.5px;margin-top:2px;}

/* 右侧可视化面板 */
.hero-panel{
  position:relative;padding:22px;border-radius:22px;
  background:linear-gradient(160deg,rgba(16,26,45,.95),rgba(8,14,27,.9));
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.hero-panel:before{
  content:"";position:absolute;inset:-1px;border-radius:22px;padding:1px;
  background:linear-gradient(140deg,rgba(0,213,255,.55),transparent 40%,rgba(123,92,255,.55));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.panel-head h3{font-size:14px;letter-spacing:.6px;color:var(--muted);font-weight:600;}
.panel-dots{display:flex;gap:6px;}
.panel-dots i{width:8px;height:8px;border-radius:50%;background:var(--line-strong);}
.panel-dots i:first-child{background:var(--green);}
.term{
  background:#04070d;border:1px solid var(--line);border-radius:12px;
  padding:16px 18px;font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  font-size:12.5px;line-height:1.9;color:#9fe8ff;overflow:auto;
}
.term .c{color:#5f7699;}
.term .g{color:var(--green);}
.term .v{color:#c3a6ff;}
.term .y{color:var(--amber);}
.panel-softwares{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:14px;}
.panel-softwares i{
  display:flex;align-items:center;justify-content:center;height:46px;border-radius:11px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  font-style:normal;font-weight:700;font-size:13px;color:var(--muted);
}
.panel-softwares i:nth-child(1){color:#6ff0ff;border-color:rgba(0,213,255,.3);}
.panel-softwares i:nth-child(2){color:#c3a6ff;border-color:rgba(123,92,255,.32);}
.panel-softwares i:nth-child(3){color:#79ffc9;border-color:rgba(46,230,168,.32);}
.panel-softwares i:nth-child(4){color:#ffd58a;border-color:rgba(255,194,71,.3);}

/* ---------- 通用区块 ---------- */
.section{padding:76px 0;}
.section.tint{background:linear-gradient(180deg,var(--bg-2),var(--bg));}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;}
.sec-head .tag{color:var(--accent);font-size:12.5px;letter-spacing:2.5px;text-transform:uppercase;margin-bottom:10px;display:flex;align-items:center;gap:8px;}
.sec-head .tag:before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--accent),transparent);}
.sec-head h2{font-size:32px;letter-spacing:-.6px;font-weight:800;}
.sec-head p{color:var(--muted);font-size:14.5px;margin-top:9px;max-width:620px;}
.sec-more{font-size:13.5px;color:var(--muted);display:inline-flex;align-items:center;gap:7px;border-bottom:1px dashed var(--line-strong);padding-bottom:3px;white-space:nowrap;}
.sec-more:hover{color:var(--accent);border-color:var(--accent);}

/* ---------- 软件卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.app-card{
  position:relative;padding:22px;border-radius:var(--radius);
  background:linear-gradient(165deg,var(--card-2),var(--card));
  border:1px solid var(--line);transition:.3s;overflow:hidden;
}
.app-card:before{
  content:"";position:absolute;inset:0;opacity:0;transition:.35s;
  background:radial-gradient(400px 180px at 50% -10%,rgba(0,213,255,.16),transparent 70%);
}
.app-card:hover{transform:translateY(-6px);border-color:rgba(0,213,255,.45);box-shadow:0 26px 50px -26px rgba(0,0,0,.9);}
.app-card:hover:before{opacity:1;}
.app-top{display:flex;align-items:center;gap:14px;position:relative;}
.app-icon{
  width:56px;height:56px;border-radius:15px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:19px;letter-spacing:-.5px;
  background:linear-gradient(140deg,rgba(0,213,255,.22),rgba(123,92,255,.22));
  border:1px solid rgba(0,213,255,.3);color:#a8f2ff;
  text-transform:uppercase;
}
.app-card:nth-child(4n+2) .app-icon{background:linear-gradient(140deg,rgba(123,92,255,.24),rgba(0,213,255,.12));border-color:rgba(123,92,255,.35);color:#cbb9ff;}
.app-card:nth-child(4n+3) .app-icon{background:linear-gradient(140deg,rgba(46,230,168,.2),rgba(0,213,255,.1));border-color:rgba(46,230,168,.32);color:#8fffd4;}
.app-card:nth-child(4n+4) .app-icon{background:linear-gradient(140deg,rgba(255,194,71,.18),rgba(123,92,255,.12));border-color:rgba(255,194,71,.3);color:#ffd58a;}
.app-meta h4{font-size:16.5px;font-weight:700;letter-spacing:-.2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.app-meta span{font-size:12px;color:var(--dim);}
.app-desc{color:var(--muted);font-size:13px;margin-top:16px;min-height:42px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.app-foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px;padding-top:15px;border-top:1px solid var(--line);gap:10px;}
.chips{display:flex;gap:6px;flex-wrap:wrap;}
.chip{font-size:11px;padding:3px 9px;border-radius:999px;color:var(--muted);background:rgba(255,255,255,.05);border:1px solid var(--line);}
.chip.hot{color:var(--amber);border-color:rgba(255,194,71,.35);background:rgba(255,194,71,.08);}
.score{color:var(--amber);font-size:12.5px;font-weight:700;white-space:nowrap;}
.app-actions{display:inline-flex;align-items:center;gap:10px;}
.btn-mini{
  display:inline-flex;align-items:center;gap:4px;padding:5px 14px;border-radius:999px;
  font-size:12.5px;font-weight:700;color:#06121f;text-decoration:none;white-space:nowrap;
  background:linear-gradient(135deg,var(--accent),#5ee7ff);
  box-shadow:0 4px 14px rgba(0,213,255,.28);transition:.25s;
}
.btn-mini:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,213,255,.42);}

/* ---------- 下载列表 ---------- */
.dl-list{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.dl-row{
  display:flex;align-items:center;gap:16px;padding:18px 20px;border-radius:14px;
  background:linear-gradient(160deg,var(--card-2),var(--card));
  border:1px solid var(--line);transition:.28s;
}
.dl-row:hover{border-color:rgba(0,213,255,.42);transform:translateX(3px);}
.dl-ico{
  width:48px;height:48px;border-radius:13px;flex-shrink:0;
  background:linear-gradient(140deg,rgba(0,213,255,.18),rgba(123,92,255,.18));
  border:1px solid rgba(0,213,255,.28);
  display:flex;align-items:center;justify-content:center;color:#9fe8ff;font-size:18px;
}
.dl-main{flex:1;min-width:0;}
.dl-main h4{font-size:15px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.dl-main .sub{display:flex;gap:14px;color:var(--dim);font-size:12px;margin-top:4px;flex-wrap:wrap;}
.dl-main .sub b{color:var(--muted);font-weight:500;}
.dl-btn{
  display:inline-flex;align-items:center;gap:7px;flex-shrink:0;
  padding:9px 17px;border-radius:9px;font-size:13px;font-weight:600;
  color:#03111c;background:linear-gradient(120deg,var(--green),#37d9ff);
  transition:.25s;
}
.dl-btn:hover{transform:translateY(-2px);box-shadow:0 12px 24px -12px rgba(46,230,168,.8);}

/* ---------- 分类快捷卡 ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.cat-card{
  display:flex;align-items:center;gap:14px;padding:18px;border-radius:13px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);transition:.25s;
}
.cat-card:hover{background:rgba(0,213,255,.07);border-color:rgba(0,213,255,.4);transform:translateY(-3px);}
.cat-card .ci{width:42px;height:42px;border-radius:11px;display:flex;align-items:center;justify-content:center;background:rgba(0,213,255,.12);color:var(--accent);font-size:17px;flex-shrink:0;}
.cat-card h5{font-size:14.5px;font-weight:700;}
.cat-card span{display:block;font-size:12px;color:var(--dim);margin-top:2px;}

/* ---------- 特性 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.feature{
  padding:28px 24px;border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(16,26,45,.85),rgba(8,14,27,.7));
  border:1px solid var(--line);transition:.3s;
}
.feature:hover{border-color:rgba(123,92,255,.4);transform:translateY(-4px);}
.feature .fi{
  width:48px;height:48px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  font-size:20px;color:var(--accent);background:rgba(0,213,255,.1);border:1px solid rgba(0,213,255,.25);margin-bottom:18px;
}
.feature:nth-child(3n+2) .fi{color:#c3a6ff;background:rgba(123,92,255,.12);border-color:rgba(123,92,255,.3);}
.feature:nth-child(3n+3) .fi{color:var(--green);background:rgba(46,230,168,.1);border-color:rgba(46,230,168,.28);}
.feature h4{font-size:16px;font-weight:700;margin-bottom:8px;}
.feature p{color:var(--muted);font-size:13.5px;}

/* ---------- 内页头部 ---------- */
.page-hero{
  position:relative;padding:56px 0 46px;border-bottom:1px solid var(--line);overflow:hidden;
  background:linear-gradient(180deg,rgba(0,213,255,.06),transparent);
}
.page-hero:after{
  content:"";position:absolute;inset:0;opacity:.4;
  background-image:linear-gradient(rgba(120,180,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.07) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(circle at 15% 20%,#000 10%,transparent 65%);
  -webkit-mask-image:radial-gradient(circle at 15% 20%,#000 10%,transparent 65%);
}
.page-hero .wrap{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--dim);margin-bottom:16px;flex-wrap:wrap;}
.crumb a:hover{color:var(--accent);}
.crumb i{font-style:normal;color:var(--line-strong);}
.page-hero h1{font-size:36px;font-weight:800;letter-spacing:-.8px;}
.page-hero p{color:var(--muted);font-size:14.5px;margin-top:10px;}

/* ---------- 内容详情 ---------- */
.detail-grid{display:grid;grid-template-columns:1fr 320px;gap:28px;padding:52px 0 76px;}
.detail-main{padding:34px;border-radius:var(--radius);background:linear-gradient(165deg,var(--card-2),var(--card));border:1px solid var(--line);}
.detail-main h1{font-size:28px;line-height:1.35;letter-spacing:-.5px;}
.detail-info{display:flex;gap:18px;flex-wrap:wrap;margin-top:16px;padding-bottom:22px;border-bottom:1px solid var(--line);color:var(--dim);font-size:12.5px;}
.detail-info span b{color:var(--muted);font-weight:500;}
.detail-body{font-size:15px;color:#c9d9ee;margin-top:24px;word-break:break-word;}
.detail-body img{border-radius:12px;margin:12px 0;}
.detail-body h2,.detail-body h3{color:var(--txt);margin:22px 0 10px;}
.detail-body p{margin:12px 0;}
.detail-body ul{padding-left:22px;list-style:disc;margin:12px 0;}
.detail-body a{color:var(--accent);}
.aside-card{padding:24px;border-radius:var(--radius);background:linear-gradient(165deg,var(--card-2),var(--card));border:1px solid var(--line);margin-bottom:18px;}
.aside-card h4{font-size:13px;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted);margin-bottom:16px;}
.meta-list li{display:flex;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:13px;}
.meta-list li:last-child{border:0;}
.meta-list li span{color:var(--dim);}
.meta-list li b{color:var(--txt);font-weight:600;text-align:right;word-break:break-all;}
.buy-box .btn{width:100%;}
.pn{display:flex;gap:16px;margin-top:28px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.pn a:hover{color:var(--accent);}

.list-side-tip{color:var(--dim);font-size:12.5px;line-height:1.9;}

/* ---------- 分页（白色块统一风） ---------- */
.pager{display:flex;justify-content:center;margin-top:40px;}
.pager ul.pagination{
  display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:8px;
  list-style:none;margin:0;padding:0;
}
.pager ul.pagination li{margin:0;padding:0;}
.pager ul.pagination li a{
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:36px;padding:0 14px;
  border-radius:10px;border:1px solid #fff;background:#fff;
  font-size:13px;font-weight:600;color:#111;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease;
  text-decoration:none;
  box-shadow:0 8px 20px -10px rgba(0,0,0,.6);
}
/* hover 底部滑入色条 */
.pager ul.pagination li a::after{
  content:"";position:absolute;left:50%;bottom:0;width:0;height:3px;border-radius:3px 3px 0 0;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  transform:translateX(-50%);transition:width .28s ease;
}
.pager ul.pagination li a:hover{
  border-color:var(--accent);color:var(--accent);
  transform:translateY(-3px) scale(1.05);
  box-shadow:0 16px 28px -12px rgba(0,213,255,.55);
}
.pager ul.pagination li a:hover::after{width:64%;}
/* 点击涟漪层（从中心扩散） */
.pager ul.pagination li a::before{
  content:"";position:absolute;left:50%;top:50%;width:0;height:0;border-radius:50%;
  background:radial-gradient(circle,rgba(0,213,255,.4) 0%,rgba(0,213,255,0) 70%);
  transform:translate(-50%,-50%);opacity:0;pointer-events:none;
}
/* 点击按压反馈：下压 + 淡青底 + 阴影收紧 + 涟漪扩散 */
.pager ul.pagination li a:active{
  transform:translateY(0) scale(.94);
  background:#eafcff;color:var(--accent);
  box-shadow:0 2px 8px -4px rgba(0,213,255,.45);
  transition-duration:.06s;
}
.pager ul.pagination li a:active::before{animation:pgRipple .45s ease-out;}
@keyframes pgRipple{
  0%{width:0;height:0;opacity:1;}
  100%{width:130px;height:130px;opacity:0;}
}
.pager ul.pagination li.active a{
  border-color:var(--accent);color:var(--accent);
  box-shadow:0 0 0 1px var(--accent),0 8px 22px -10px rgba(0,213,255,.55);
}
.pager ul.pagination li.active a::after{width:64%;}
.pager ul.pagination li.active a:hover{color:var(--accent);transform:none;box-shadow:0 0 0 1px var(--accent),0 8px 22px -10px rgba(0,213,255,.55);}
/* “共X条”统计：与页码同风格白底黑字，无动效 */
.pager ul.pagination li:first-child a{
  background:#fff;color:#111;cursor:default;font-size:12.5px;min-width:0;
}
.pager ul.pagination li:first-child a::after,
.pager ul.pagination li:first-child a::before{display:none;}
.pager ul.pagination li:first-child a:hover{color:#111;transform:none;border-color:#fff;box-shadow:0 8px 20px -10px rgba(0,0,0,.6);}
/* 禁用页码 */
.pager ul.pagination li.disabled a{opacity:.4;cursor:not-allowed;}
.pager ul.pagination li.disabled a::after,
.pager ul.pagination li.disabled a::before{display:none;}
.pager ul.pagination li.disabled a:hover{border-color:#fff;color:#111;transform:none;}

/* ---------- 空状态 ---------- */
.empty{padding:70px 20px;text-align:center;color:var(--dim);border:1px dashed var(--line);border-radius:var(--radius);}
.empty b{display:block;color:var(--muted);font-size:16px;margin-bottom:6px;}

/* ---------- 下载进度面板 ---------- */
.dl-panel{
  position:fixed;top:84px;right:24px;z-index:9999;width:330px;padding:16px 18px;border-radius:14px;
  background:rgba(10,18,32,.94);border:1px solid var(--line-strong);
  box-shadow:0 18px 44px -12px rgba(0,0,0,.75);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transform:translateX(calc(100% + 40px));opacity:0;visibility:hidden;
  transition:transform .38s cubic-bezier(.2,.9,.3,1.15),opacity .3s ease,visibility .3s;
}
.dl-panel.on{transform:none;opacity:1;visibility:visible;}
.dl-panel.ok{border-color:rgba(46,230,168,.55);}
.dl-panel.fail{border-color:rgba(255,90,110,.55);}
.dlp-head{display:flex;align-items:flex-start;gap:11px;}
.dlp-ico{
  flex:0 0 34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#04121c;font-weight:800;font-size:16px;
}
.dl-panel.ok .dlp-ico{background:linear-gradient(135deg,var(--green),var(--accent));}
.dl-panel.fail .dlp-ico{background:linear-gradient(135deg,#ff5a6e,#ff9a5c);}
.dlp-title{flex:1;min-width:0;font-size:13px;font-weight:600;color:var(--txt);line-height:1.45;word-break:break-all;}
.dlp-status{display:block;font-weight:400;font-size:11.5px;color:var(--muted);margin-top:2px;}
.dl-panel.ok .dlp-status{color:var(--green);}
.dl-panel.fail .dlp-status{color:#ff8291;}
.dlp-x{
  flex:0 0 22px;height:22px;border:0;border-radius:6px;background:rgba(120,160,220,.12);
  color:var(--muted);font-size:14px;cursor:pointer;line-height:1;padding:0;transition:.2s;
}
.dlp-x:hover{background:rgba(120,160,220,.28);color:var(--txt);}
.dlp-bar{height:8px;margin-top:14px;border-radius:8px;background:rgba(120,160,220,.16);overflow:hidden;}
.dlp-bar i{
  display:block;width:0;height:100%;border-radius:8px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  box-shadow:0 0 12px rgba(0,213,255,.55);
  transition:width .3s ease;
}
.dl-panel.ok .dlp-bar i{background:linear-gradient(90deg,var(--green),var(--accent));box-shadow:0 0 12px rgba(46,230,168,.5);}
.dlp-stats{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-top:10px;}
.dlp-pct{font-size:20px;font-weight:800;color:var(--accent);letter-spacing:.5px;font-variant-numeric:tabular-nums;}
.dl-panel.ok .dlp-pct{color:var(--green);}
.dlp-info{font-size:11.5px;color:var(--muted);text-align:right;line-height:1.5;font-variant-numeric:tabular-nums;}
@media (max-width:560px){
  .dl-panel{left:16px;right:16px;top:auto;bottom:88px;width:auto;}
}

/* ---------- 返回顶部 ---------- */
.backtop{
  position:fixed;right:26px;bottom:30px;z-index:90;
  width:44px;height:44px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--accent),var(--accent-2));
  color:#04121c;font-size:19px;font-weight:800;text-decoration:none;
  box-shadow:0 10px 30px -8px rgba(0,213,255,.55);
  opacity:0;visibility:hidden;transform:translateY(14px);transition:.3s;
}
.backtop.show{opacity:1;visibility:visible;transform:translateY(0);}
.backtop:hover{transform:translateY(-3px);}

/* ---------- 全局细节 ---------- */
html{scroll-behavior:smooth;}
::selection{background:rgba(0,213,255,.32);color:#f2fbff;}

/* ---------- 页脚 ---------- */
.footer{background:#03060d;border-top:1px solid var(--line);padding:58px 0 26px;color:var(--muted);}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.foot-brand .logo{margin-bottom:16px;}
.foot-brand p{font-size:13px;line-height:1.9;color:var(--dim);max-width:300px;}
.foot-col h5{font-size:13px;letter-spacing:1.5px;text-transform:uppercase;color:var(--txt);margin-bottom:16px;}
.foot-col li{margin-bottom:9px;font-size:13px;}
.foot-col a:hover{color:var(--accent);}
.foot-bottom{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:44px;padding-top:22px;border-top:1px solid var(--line);font-size:12px;color:var(--dim);}
.foot-bottom a:hover{color:var(--accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero .wrap{grid-template-columns:1fr;gap:44px;}
  .hero h1{font-size:42px;}
  .card-grid{grid-template-columns:repeat(3,1fr);}
  .detail-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:860px){
  .nav-links{display:none;}
  .nav-toggle{display:block;}
  .search-mini input{width:150px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .feature-grid{grid-template-columns:1fr;}
  .dl-list{grid-template-columns:1fr;}
  .sec-head{flex-direction:column;align-items:flex-start;}
}
@media (max-width:560px){
  .wrap{padding:0 16px;}
  .hero{padding:60px 0 52px;}
  .hero h1{font-size:32px;}
  .hero p.lead{font-size:14.5px;}
  .hero-stats{gap:24px;}
  .card-grid,.cat-grid{grid-template-columns:1fr;}
  .page-hero h1{font-size:26px;}
  .detail-main{padding:22px;}
  .topbar-right{display:none;}
  .foot-grid{grid-template-columns:1fr;}
}