/* ==========================================================================
   磁力居云 · 官网
   ========================================================================== */
:root{
  --accent:#ff5c8a;
  --accent-deep:#ff3d71;
  --accent-soft:#fff0f4;
  --blue:#4597ff;
  --blue-soft:#eaf3ff;
  --purple:#a66bff;
  --purple-soft:#f3ebff;
  --mint:#2ec4a6;
  --mint-soft:#e6f8f3;
  --ink:#12121a;
  --ink-2:#4b4854;
  --muted:#8f8b98;
  --line:#f0edf1;
  --page:#fdfcfd;
  --card:#ffffff;
  --shadow-s:0 10px 28px rgba(90,70,110,.08);
  --shadow-m:0 24px 60px rgba(90,70,110,.12);
  --shadow-l:0 40px 110px rgba(90,70,110,.16);
  --container:1400px;
  --radius-l:34px;
  --radius-m:22px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;background:var(--page);color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  line-height:1.65;-webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
h1,h2,h3{margin:0;line-height:1.1;font-weight:800;letter-spacing:-.01em;text-wrap:balance}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:min(100% - 48px,var(--container));margin-inline:auto}
@media (min-width:1100px){.container{width:min(100% - 96px,var(--container))}}

/* header */
.site-header{position:absolute;inset:0 0 auto;z-index:100;height:118px;transition:.3s ease}
.site-header.is-stuck{position:fixed;height:78px;background:rgba(255,255,255,.86);border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}
.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:12px;font-weight:800}
.brand-mark{width:44px;height:44px;border-radius:14px;background:linear-gradient(140deg,var(--accent),var(--purple));display:grid;place-content:center;color:#fff;font-size:20px;font-weight:800;flex:none;box-shadow:0 10px 20px rgba(255,92,138,.26)}
.site-header.is-stuck .brand-mark{width:34px;height:34px;border-radius:11px;font-size:16px}
.brand-name{font-size:20px;letter-spacing:.02em;white-space:nowrap}
.site-nav{display:flex;align-items:center;gap:clamp(22px,2.6vw,46px);font-size:17px;color:var(--ink-2)}
.site-nav a:not(.nav-cta){position:relative;padding:10px 0;white-space:nowrap}
.site-nav a:not(.nav-cta)::after{content:"";position:absolute;left:50%;right:50%;bottom:2px;height:2px;background:var(--accent);transition:left .25s ease,right .25s ease}
.site-nav a:hover::after,.site-nav a.is-active::after{left:0;right:0}
.site-nav a.is-active{color:var(--accent)}
.nav-cta{padding:11px 22px;border:2px solid var(--accent);border-radius:999px;color:var(--accent);font-weight:700;transition:.25s ease}
.nav-cta:hover{color:#fff;background:var(--accent);box-shadow:0 12px 24px rgba(255,92,138,.26);transform:translateY(-2px)}
.menu-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);margin:4px auto;border-radius:2px;transition:.25s}
body.menu-open .menu-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.menu-open .menu-toggle span:nth-child(2){opacity:0}
body.menu-open .menu-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* language switch */
.lang-switch{display:inline-flex;align-items:center;gap:2px;padding:3px;border:1px solid var(--line);border-radius:999px;background:#fff;box-shadow:var(--shadow-s);flex:none}
.lang-switch a{display:inline-flex;align-items:center;padding:5px 10px;border-radius:999px;font-size:12.5px;font-weight:700;color:var(--muted);line-height:1.45;letter-spacing:.02em;transition:background .2s ease,color .2s ease}
.lang-switch a:hover{color:var(--ink);background:var(--accent-soft)}
.lang-switch a.is-on{background:var(--ink);color:#fff}
.lang-switch a.is-on:hover{background:var(--ink);color:#fff}
@media (max-width:1180px){
  .site-nav{gap:18px;font-size:15.5px}
  .brand-name{font-size:18px}
}
@media (max-width:1000px){
  .site-nav{gap:14px;font-size:14px}
  .nav-cta{padding:9px 15px;font-size:14px}
  .lang-switch{padding:2px}
  .lang-switch a{padding:4px 8px;font-size:12px}
}


/* hero */
.hero{position:relative;padding:150px 0 90px;overflow:hidden;isolation:isolate}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(60px);z-index:-1}
.hero::before{width:520px;height:520px;top:-120px;right:-80px;background:radial-gradient(circle at 30% 30%,rgba(255,92,138,.22),rgba(255,255,255,0) 70%)}
.hero::after{width:460px;height:460px;bottom:-160px;left:-120px;background:radial-gradient(circle at 60% 40%,rgba(166,107,255,.18),rgba(255,255,255,0) 70%)}
.hero-grid{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:clamp(28px,4vw,64px);align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--accent);font-size:16px;font-weight:700;letter-spacing:.14em;margin-bottom:20px}
.eyebrow::before{content:"";width:34px;height:2px;background:var(--accent);border-radius:2px}
.hero h1{font-size:clamp(46px,5.6vw,92px);line-height:1.02;letter-spacing:-.03em;margin-bottom:22px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-lead{font-size:clamp(16px,1.3vw,20px);color:var(--ink-2);max-width:36ch}
.hero-lead strong{color:var(--ink)}
.hero-note{margin-top:14px;font-size:13px;color:var(--muted)}
.download-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:34px;max-width:420px}
.dl-btn{display:inline-flex;align-items:center;gap:9px;min-height:52px;padding:0 20px;border-radius:999px;font-weight:700;font-size:14.5px;background:var(--ink);color:#fff;box-shadow:var(--shadow-m);transition:transform .22s ease,box-shadow .22s ease,filter .22s ease}
.dl-btn svg{width:19px;height:19px;fill:currentColor}
.dl-btn--primary{background:linear-gradient(135deg,var(--accent-deep),var(--accent));box-shadow:0 18px 40px rgba(255,73,116,.34)}
.dl-btn--ghost{background:#fff;color:var(--ink);border:1.5px solid var(--line);box-shadow:var(--shadow-s)}
.dl-btn:hover{transform:translateY(-4px);filter:saturate(1.08)}
.qr-chip{display:flex;align-items:center;gap:12px;margin-top:20px;padding:12px 16px 12px 12px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-s)}
.qr-box{width:66px;height:66px;flex:none;border-radius:12px;background:#f5f3f7;object-fit:contain}
.qr-chip p{font-size:13px;color:var(--muted);line-height:1.5}
.qr-chip b{display:block;color:var(--ink);font-size:14px}

/* app mock */
.mock-wrap{position:relative}
.mock{position:relative;margin:0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-l);box-shadow:var(--shadow-l);overflow:hidden}
.mock-bar{display:flex;align-items:center;gap:8px;padding:16px 20px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#fff,#fdfbfc)}
.mock-bar i{width:11px;height:11px;border-radius:50%;background:#ffd0da;flex:none}
.mock-bar i:nth-child(2){background:#ffe1bd}
.mock-bar i:nth-child(3){background:#c9e8d8}
.mock-bar .mock-title{margin-left:8px;font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.04em}
.mock-body{display:grid;grid-template-columns:168px minmax(0,1fr);min-height:420px}
.mock-side{padding:18px 14px;border-right:1px solid var(--line);background:#fcfbfd}
.mock-side li{display:flex;align-items:center;gap:9px;padding:9px 10px;border-radius:11px;font-size:13.5px;color:var(--ink-2)}
.mock-side li>span:not(.dot){min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mock-side li.is-on{background:var(--accent-soft);color:var(--accent-deep);font-weight:700}
.mock-side li b{margin-left:auto;font-size:11px;color:var(--muted);font-weight:600}
.mock-side .dot{width:8px;height:8px;border-radius:50%;background:var(--line);flex:none}
.mock-side li.is-on .dot{background:var(--accent)}
.mock-main{padding:22px 24px}
.mock-speed{display:flex;align-items:baseline;gap:10px;padding-bottom:16px;border-bottom:1px dashed var(--line);margin-bottom:16px}
.mock-speed .num{font-size:38px;font-weight:800;letter-spacing:-.03em;color:var(--ink);font-variant-numeric:tabular-nums}
.mock-speed .unit{font-size:14px;color:var(--muted)}
.mock-speed .tag{margin-left:auto;font-size:12px;font-weight:700;color:var(--blue);background:var(--blue-soft);padding:6px 12px;border-radius:999px}
.task{margin-bottom:14px}
.task-top{display:flex;align-items:center;gap:10px;font-size:13.5px;margin-bottom:8px}
.task-top .nm{font-weight:600;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.task-top .sz{margin-left:auto;color:var(--muted);font-size:12px;flex:none}
.track{height:8px;border-radius:999px;background:#f2eff3;overflow:hidden}
.fill{height:100%;width:0;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--purple));animation:grow 1.6s cubic-bezier(.2,.8,.2,1) forwards}
.fill--blue{background:linear-gradient(90deg,var(--blue),#7bd0ff)}
.fill--mint{background:linear-gradient(90deg,var(--mint),#8ce8c8)}
@keyframes grow{to{width:var(--w,60%)}}
.mock-chips{display:grid;grid-template-columns:repeat(auto-fit,minmax(148px,1fr));gap:12px;margin-top:16px}
.mock-chip{padding:11px 14px;border-radius:14px;background:#fff;box-shadow:var(--shadow-s);font-size:12.5px;font-weight:700;display:flex;align-items:center;gap:10px;border:1px solid var(--line);line-height:1.35}
.mock-chip small{display:block;font-weight:500;font-size:11.5px;color:var(--muted)}
.mock-chip--a{background:linear-gradient(135deg,#fff,var(--accent-soft))}

.mock-chip .pip{width:26px;height:26px;border-radius:9px;background:var(--accent);color:#fff;display:grid;place-content:center;font-size:12px;flex:none}
.mock-chip--b .pip{background:var(--blue)}
.scroll-hint{display:flex;justify-content:center;margin-top:64px}
.scroll-hint span{width:26px;height:44px;border:2px solid var(--line);border-radius:999px;position:relative}
.scroll-hint span::after{content:"";position:absolute;left:50%;top:8px;width:4px;height:8px;margin-left:-2px;border-radius:3px;background:var(--accent);animation:hint 1.6s ease-in-out infinite}
@keyframes hint{0%{opacity:0;transform:translateY(0)}40%{opacity:1}100%{opacity:0;transform:translateY(14px)}}

/* stats */
.stats{padding:34px 0 8px}
.stats-inner{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px;background:linear-gradient(135deg,var(--accent-soft),var(--purple-soft));border-radius:var(--radius-l);padding:clamp(24px,3vw,44px)}
.stat{text-align:left}
.stat .v{font-size:clamp(30px,3.4vw,50px);font-weight:800;letter-spacing:-.03em;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.1}
.stat .v small{font-size:.42em;font-weight:700;margin-left:6px;color:var(--accent-deep)}
.stat .k{font-size:13.5px;color:var(--ink-2);margin-top:6px}

/* features */
.features{padding:120px 0 40px}
.section-head{max-width:760px;margin-bottom:64px}
.section-kicker{font-size:13px;font-weight:800;letter-spacing:.22em;color:var(--accent);margin-bottom:14px}
.section-head h2{font-size:clamp(30px,3.8vw,56px);letter-spacing:-.02em}
.section-head p{margin-top:16px;color:var(--muted);font-size:16px}
.feature{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:clamp(28px,4vw,72px);align-items:center;padding-block:clamp(48px,5vw,84px)}
.feature+.feature{border-top:1px solid var(--line)}
.feature--reverse .feature-copy{order:2}
.feature h3{font-size:clamp(26px,3vw,42px);letter-spacing:-.02em;margin-bottom:20px}
.feature h3 em{font-style:normal;padding:0 6px;color:var(--accent)}
.feature-list{display:grid;gap:16px}
.feature-list li{position:relative;padding-left:30px;font-size:16px;color:var(--ink-2)}
.feature-list li::before{content:"";position:absolute;left:0;top:.62em;width:14px;height:14px;border-radius:5px;background:var(--accent-soft);box-shadow:inset 0 0 0 2px var(--accent)}
.feature-list strong{color:var(--ink)}
.feature-tag{display:inline-flex;gap:8px;flex-wrap:wrap;margin-top:26px}
.feature-tag b{font-size:12.5px;font-weight:700;padding:7px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink-2)}
.art{position:relative;border-radius:var(--radius-l);padding:clamp(20px,2.4vw,34px);box-shadow:var(--shadow-m);overflow:hidden}
.art--stream{background:linear-gradient(150deg,#1b1b26,#2c2340)}
.art--speed{background:linear-gradient(150deg,var(--accent-soft),#fff)}
.art--cloud{background:linear-gradient(150deg,var(--blue-soft),#fff)}
.art--sync{background:linear-gradient(150deg,var(--purple-soft),#fff)}
.art-label{position:absolute;top:18px;left:22px;font-size:11.5px;font-weight:800;letter-spacing:.2em;opacity:.5}
.art--stream .art-label{color:#fff}
.player{margin-top:34px;border-radius:20px;background:#0d0d14;border:1px solid rgba(255,255,255,.1);overflow:hidden}
.player-screen{position:relative;aspect-ratio:16/8;background:
  radial-gradient(circle at 22% 30%,rgba(255,92,138,.5),transparent 55%),
  radial-gradient(circle at 76% 66%,rgba(69,151,255,.45),transparent 55%),
  linear-gradient(120deg,#20202e,#141420)}
.player-play{position:absolute;inset:0;margin:auto;width:62px;height:62px;border-radius:50%;background:rgba(255,255,255,.92);display:grid;place-content:center;box-shadow:0 12px 30px rgba(0,0,0,.35)}
.player-play::after{content:"";border-left:18px solid var(--ink);border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:5px}
.player-info{position:absolute;left:18px;bottom:16px;color:#fff;font-size:13px}
.player-info b{display:block;font-size:16px}
.player-bar{display:flex;align-items:center;gap:12px;padding:12px 16px;background:#15151d;color:#b9b6c6;font-size:12px}
.player-line{flex:1;height:4px;border-radius:3px;background:rgba(255,255,255,.16);overflow:hidden}
.player-line i{display:block;height:100%;width:38%;background:var(--accent);border-radius:3px}
.player-pill{padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.1);font-weight:700}
.speed-list{margin-top:30px;display:grid;gap:14px}
.speed-row{display:grid;grid-template-columns:auto minmax(60px,1fr) 76px;align-items:center;gap:12px;font-size:12.5px;color:var(--ink-2)}
.speed-row>span:first-child{white-space:nowrap}
.speed-row .bar{height:26px;border-radius:9px;background:#fff;box-shadow:inset 0 0 0 1px var(--line);overflow:hidden}
.speed-row .bar i{display:block;height:100%;width:0;border-radius:9px;background:linear-gradient(90deg,var(--accent),#ff9ab0);animation:grow 1.8s ease forwards}
.speed-row+.speed-row .bar i{background:linear-gradient(90deg,#d9d5e4,#efeaf6)}
.speed-row .val{text-align:right;font-weight:800;font-variant-numeric:tabular-nums;color:var(--ink)}
.cloud-grid{margin-top:30px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.cloud-item{aspect-ratio:1/1.1;border-radius:18px;background:#fff;box-shadow:var(--shadow-s);padding:14px;display:flex;flex-direction:column;justify-content:space-between;font-size:12px;color:var(--muted);border:1px solid var(--line)}
.cloud-item b{font-size:12.5px;color:var(--ink);font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cloud-item .ic{width:34px;height:34px;border-radius:11px;display:grid;place-content:center;font-size:11px;font-weight:800;color:#fff;background:var(--blue)}
.cloud-item:nth-child(2) .ic{background:var(--purple)}
.cloud-item:nth-child(3) .ic{background:var(--mint)}
.cloud-item:nth-child(4) .ic{background:var(--accent)}
.cloud-item:nth-child(5){align-items:center;justify-content:center;border-style:dashed;background:transparent;box-shadow:none;color:var(--blue);font-weight:700;font-size:12.5px}
.cloud-item:nth-child(6) .ic{background:#f6a13c}
.sync{margin-top:30px;display:flex;align-items:flex-end;gap:clamp(10px,2vw,26px)}
.dev{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-s);display:grid;place-content:center;color:var(--ink-2);font-size:12px;font-weight:700;gap:6px;padding:14px}
.dev i{display:block;width:100%;border-radius:8px;background:linear-gradient(135deg,var(--purple-soft),var(--blue-soft));border:1px solid var(--line)}
.dev--pc{flex:1;height:150px}
.dev--pc i{height:82px}
.dev--pad{width:34%;height:128px}
.dev--pad i{height:64px}
.dev--phone{width:22%;height:112px}
.dev--phone i{height:52px}
.sync-line{margin-top:16px;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--ink-2);background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 16px;box-shadow:var(--shadow-s)}
.sync-line span{width:8px;height:8px;border-radius:50%;background:var(--mint);flex:none}
.sync-line em{font-style:normal}

/* matrix */
.matrix{padding:60px 0 110px}
.matrix-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.mcard{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);padding:26px 24px 24px;box-shadow:var(--shadow-s);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.mcard:hover{transform:translateY(-8px);box-shadow:var(--shadow-m);border-color:#ffdbe5}
.mcard .ic{width:52px;height:52px;border-radius:16px;display:grid;place-content:center;margin-bottom:18px;background:var(--accent-soft)}
.mcard .ic svg{width:26px;height:26px;stroke:var(--accent-deep);fill:none;stroke-width:1.9}
.mcard:nth-child(3n) .ic{background:var(--blue-soft)}
.mcard:nth-child(3n) .ic svg{stroke:var(--blue)}
.mcard:nth-child(3n+2) .ic{background:var(--purple-soft)}
.mcard:nth-child(3n+2) .ic svg{stroke:var(--purple)}
.mcard h4{margin:0 0 8px;font-size:17px;font-weight:800}
.mcard p{font-size:14px;color:var(--muted)}
.mcard .more{margin-top:16px;display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--accent)}
.mcard .more::after{content:"→";transition:transform .2s ease}
.mcard:hover .more::after{transform:translateX(4px)}

/* platforms */
.platforms{padding:100px 0}
.pl-wrap{background:linear-gradient(160deg,#fff,var(--accent-soft));border:1px solid var(--line);border-radius:var(--radius-l);box-shadow:var(--shadow-m);padding:clamp(24px,3.4vw,54px)}
.pl-tabs{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 30px}
.pl-tab{min-height:48px;padding:0 20px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:700;font-size:14.5px;color:var(--ink-2);display:inline-flex;align-items:center;gap:8px;transition:.2s ease}
.pl-tab svg{width:17px;height:17px;fill:currentColor}
.pl-tab.is-on{background:var(--ink);color:#fff;border-color:var(--ink);box-shadow:var(--shadow-s)}
.pl-detail{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,auto);gap:clamp(20px,3vw,40px);align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);padding:clamp(20px,2.6vw,34px)}
.pl-info h4{font-size:clamp(20px,2.2vw,28px);font-weight:800;margin-bottom:6px}
.pl-meta{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:18px;font-size:14px;color:var(--muted)}
.pl-meta b{color:var(--ink);font-weight:700;font-variant-numeric:tabular-nums}
.pl-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.pl-hint{font-size:12.5px;color:var(--muted);margin-top:14px}
.pl-check{display:grid;gap:10px;margin-top:20px;font-size:14px;color:var(--ink-2)}
.pl-check div{display:flex;align-items:center;gap:9px}
.pl-check i{width:18px;height:18px;border-radius:50%;background:var(--mint-soft);color:var(--mint);display:grid;place-content:center;font-size:11px;font-weight:800;flex:none;font-style:normal}

/* faq */
.faq{padding:0 0 110px}
.faq-list{display:grid;gap:14px;max-width:1000px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}
.faq-q{width:100%;text-align:left;display:flex;align-items:center;gap:16px;padding:20px 22px;font-weight:700;font-size:16px}
.faq-q .sign{margin-left:auto;width:26px;height:26px;border-radius:50%;background:var(--accent-soft);color:var(--accent-deep);display:grid;place-content:center;font-size:17px;flex:none;transition:transform .3s ease}
.faq-item.is-open .sign{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 22px;color:var(--muted);font-size:14.5px}

/* articles（首页文章模块：一行三个） */
.articles{padding:0 0 110px}
.article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.acard{background:#fff;border:1px solid var(--line);border-radius:var(--radius-m);box-shadow:var(--shadow-s);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;overflow:hidden}
.acard:hover{transform:translateY(-7px);box-shadow:var(--shadow-m);border-color:#ffdbe5}
.acard-link{display:flex;flex-direction:column;gap:12px;padding:26px 24px;height:100%}
.acard-cat{align-self:flex-start;font-size:12px;font-weight:700;color:var(--accent-deep);background:var(--accent-soft);padding:5px 12px;border-radius:999px;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.acard-title{font-size:18px;line-height:1.45;font-weight:800;letter-spacing:-.01em;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease}
.acard:hover .acard-title{color:var(--accent-deep)}
.acard-sum{margin:0;font-size:13.5px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.acard-foot{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);padding-top:12px;border-top:1px dashed var(--line);font-variant-numeric:tabular-nums}
.acard-views{margin-left:auto}
.article-more{margin-top:36px;text-align:center}
.article-more-btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;border:1.5px solid var(--accent);color:var(--accent);font-weight:700;font-size:14.5px;background:#fff;transition:.25s ease}
.article-more-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.article-more-btn:hover{background:var(--accent);color:#fff;box-shadow:0 14px 30px rgba(255,92,138,.26);transform:translateY(-2px)}
.article-empty{color:var(--muted);font-size:14.5px;padding:28px 0}

/* support */
.contact{position:relative;padding:110px 0 120px;background:linear-gradient(180deg,#fff,var(--purple-soft));overflow:hidden}
.contact::before{content:"";position:absolute;width:640px;height:640px;border-radius:50%;left:50%;top:-300px;transform:translateX(-50%);background:radial-gradient(circle,rgba(255,92,138,.16),transparent 70%);filter:blur(30px)}
.contact-head{text-align:center;position:relative;margin-bottom:50px}
.contact-head .kick{font-size:13px;letter-spacing:.32em;color:var(--muted);font-weight:700}
.contact-head h2{font-size:clamp(30px,4vw,54px);margin-top:12px}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px;position:relative}
.contact-card{background:#fff;border:1px solid rgba(255,255,255,.9);border-radius:var(--radius-m);padding:30px 26px;box-shadow:var(--shadow-s);display:grid;justify-items:start;gap:6px;transition:transform .25s ease,box-shadow .25s ease}
.contact-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-m)}
.contact-ic{width:58px;height:58px;border-radius:18px;display:grid;place-content:center;margin-bottom:14px;background:var(--accent-soft)}
.contact-ic svg{width:27px;height:27px;stroke:var(--accent-deep);fill:none;stroke-width:1.9}
.contact-card:nth-child(2) .contact-ic{background:var(--blue-soft)}
.contact-card:nth-child(2) .contact-ic svg{stroke:var(--blue)}
.contact-card:nth-child(3) .contact-ic{background:var(--mint-soft)}
.contact-card:nth-child(3) .contact-ic svg{stroke:var(--mint)}
.contact-card h3{font-size:17px}
.contact-card p{font-size:13.5px;color:var(--muted)}
.contact-card .val{margin-top:6px;font-size:16px;font-weight:800;letter-spacing:.01em}

/* footer */
.site-footer{padding:64px 0 46px;background:#fff;border-top:1px solid var(--line)}
.footer-inner{text-align:center;display:grid;gap:14px;justify-items:center}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 30px;font-size:14px;color:var(--ink-2)}
.footer-links a:hover{color:var(--accent)}
.copyright{font-size:12.5px;color:var(--muted);max-width:78ch;line-height:1.9}
.filing{margin-left:4px}
.filing:hover{color:var(--accent)}
.footer-slogan{font-size:15px;color:var(--ink-2)}

/* toast + reveal */
.toast{position:fixed;left:50%;bottom:34px;z-index:900;transform:translate(-50%,26px);opacity:0;pointer-events:none;padding:14px 22px;border-radius:999px;background:var(--ink);color:#fff;font-size:14px;font-weight:600;box-shadow:var(--shadow-m);transition:.3s ease;max-width:88vw;text-align:center}
.toast.is-on{opacity:1;transform:translate(-50%,0)}
.reveal{opacity:1;transform:none}
.js .reveal{opacity:0;transform:translateY(38px);transition:opacity .75s cubic-bezier(.2,.7,.2,1),transform .75s cubic-bezier(.2,.7,.2,1)}
.js .reveal--right{transform:translate(46px,0)}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none}
  .fill,.speed-row .bar i{animation:none;width:var(--w,60%)}
}

/* responsive */
@media (max-width:1080px){
  .js .reveal--right{transform:translateY(38px)}
  .hero{padding-top:130px}
  .hero-grid,.feature,.pl-detail{grid-template-columns:minmax(0,1fr)}
  .feature--reverse .feature-copy{order:0}
  .pl-actions{justify-self:start}
  .mock-body{grid-template-columns:132px minmax(0,1fr)}
}
@media (max-width:820px){
  .menu-toggle{display:block;order:3}
  .lang-switch{order:2;margin-left:auto;padding:2px}
  .lang-switch a{padding:4px 8px;font-size:12px}
  .site-header{height:76px;position:fixed;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
  .site-nav{position:fixed;inset:76px 0 auto;z-index:99;flex-direction:column;align-items:stretch;gap:0;background:#fff;padding:10px 24px 24px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-m);transform:translateY(-130%);transition:transform .3s ease}
  body.menu-open .site-nav{transform:none}
  .site-nav a{padding:16px 0;border-bottom:1px solid var(--line);font-size:17px}
  .site-nav a:not(.nav-cta)::after{display:none}
  .nav-cta{margin-top:16px;text-align:center;justify-content:center}
  body.menu-open{overflow:hidden}
  .mock-body{grid-template-columns:minmax(0,1fr)}
  .mock-side{display:none}
  .hero h1{letter-spacing:-.02em}
  .download-row{max-width:none}
  .speed-row{grid-template-columns:auto minmax(0,1fr) 64px}
  .cloud-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .features{padding:80px 0 24px}
  .matrix{padding:40px 0 72px}
  .platforms{padding:60px 0}
  .faq{padding-bottom:72px}
}
@media (max-width:520px){
  .download-row{grid-template-columns:1fr}
  .stats-inner{grid-template-columns:repeat(2,minmax(0,1fr))}
  .qr-chip{align-items:flex-start}
  .pl-meta{gap:8px 18px;font-size:13px}
}

/* 俄语 / 英文排版微调（西里尔与拉丁字串比中文长） */
html[lang="ru"] .hero h1,
html[lang="en"] .hero h1{font-size:clamp(34px,4.4vw,68px);letter-spacing:-.02em}
html[lang="ru"] .hero-lead,
html[lang="en"] .hero-lead{max-width:46ch;font-size:clamp(15px,1.2vw,18px)}
html[lang="ru"] .section-head h2,
html[lang="en"] .section-head h2{font-size:clamp(28px,3.2vw,48px)}
html[lang="ru"] .feature h3,
html[lang="en"] .feature h3{font-size:clamp(24px,2.5vw,36px)}
html[lang="ru"] .contact-head h2,
html[lang="en"] .contact-head h2{font-size:clamp(28px,3.2vw,46px)}
html[lang="ru"] .pl-info h4,
html[lang="en"] .pl-info h4{font-size:clamp(19px,1.9vw,25px)}
html[lang="ru"] .pl-tab,
html[lang="en"] .pl-tab{font-size:14px;padding:0 16px}
html[lang="ru"] .mock-chip,
html[lang="en"] .mock-chip{font-size:12px}
html[lang="ru"] .speed-row,
html[lang="en"] .speed-row{font-size:12px}
@media (min-width:1081px){
  html[lang="ru"] .mock-body{grid-template-columns:204px minmax(0,1fr)}
  html[lang="en"] .mock-body{grid-template-columns:190px minmax(0,1fr)}
}
@media (min-width:821px) and (max-width:1080px){
  html[lang="ru"] .mock-body,
  html[lang="en"] .mock-body{grid-template-columns:152px minmax(0,1fr)}
}

/* ==========================================================================
   内页：文章列表 / 文章详情（articles.php、article.php）
   ========================================================================== */
.page-main{padding:150px 0 96px;min-height:60vh}
.container--narrow{width:min(100% - 48px,880px)}
.page-head{margin-bottom:26px}
.page-title{font-size:clamp(28px,3.4vw,44px);letter-spacing:-.02em;margin:0}
.page-intro{margin-top:12px;color:var(--muted);font-size:15px;max-width:70ch}

/* 面包屑 */
.breadcrumb{margin-bottom:18px;font-size:13px;color:var(--muted)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;padding:0;list-style:none}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;max-width:100%}
.breadcrumb li+li::before{content:"/";color:#d7d2dc}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span[aria-current]{color:var(--ink-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:52ch}

/* 分类 / 标签胶囊（内链） */
.topic-bar{display:flex;flex-wrap:wrap;gap:9px;margin:0 0 28px;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-s)}
.topic-chip{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;background:var(--accent-soft);color:var(--accent-deep);font-size:13px;font-weight:700;transition:.2s ease}
.topic-chip b{font-size:11px;font-weight:700;color:var(--muted)}
.topic-chip--tag{background:#f6f4f8;color:var(--ink-2)}
.topic-chip:hover{background:var(--accent);color:#fff}
.topic-chip.is-on{background:var(--ink);color:#fff}
.topic-chip.is-on b{color:rgba(255,255,255,.7)}

/* 分页 */
.pager{margin-top:34px}
.pager ul{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;list-style:none;margin:0;padding:0}
.pager a,.pager span{display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:42px;padding:0 14px;border-radius:12px;border:1px solid var(--line);background:#fff;font-size:14px;font-weight:700;color:var(--ink-2)}
.pager a:hover{border-color:var(--accent);color:var(--accent)}
.pager .is-on{background:var(--ink);border-color:var(--ink);color:#fff}

/* 文章详情 */
.article-detail{padding-top:6px}
.article-title{font-size:clamp(26px,3.2vw,40px);line-height:1.25;letter-spacing:-.02em;margin:0 0 16px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--muted);margin-bottom:22px}
.article-meta .meta-cat{padding:4px 12px;border-radius:999px;background:var(--accent-soft);color:var(--accent-deep);font-weight:700}
.article-summary{padding:16px 20px;background:#fff;border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:14px;color:var(--ink-2);font-size:14.5px;line-height:1.85;margin:0 0 30px}
.article-content{font-size:16px;line-height:1.95;color:var(--ink-2)}
.article-content h2{font-size:22px;line-height:1.4;margin:40px 0 14px;padding-left:14px;border-left:4px solid var(--accent);color:var(--ink)}
.article-content h3{font-size:18px;margin:30px 0 12px;color:var(--ink)}
.article-content p{margin:0 0 16px}
.article-content ul,.article-content ol{margin:0 0 18px;padding-left:22px;list-style:revert}
.article-content li{margin-bottom:8px}
.article-content strong{color:var(--ink)}
.article-content a{color:var(--accent-deep);text-decoration:underline;text-underline-offset:3px}
.article-content code{padding:2px 7px;border-radius:7px;background:#f6f4f8;font-size:13.5px;color:#c31d4d}
.article-content blockquote{margin:0 0 18px;padding:14px 18px;background:var(--accent-soft);border-radius:14px;color:var(--ink-2)}
.article-content img{max-width:100%;height:auto;border-radius:16px;margin:8px 0 20px}
.article-content table{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:14.5px}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-content th{background:#fbfafc;font-weight:700;color:var(--ink)}
.article-tags{display:flex;flex-wrap:wrap;gap:9px;margin:34px 0 0;padding-top:22px;border-top:1px solid var(--line)}
.tag-link{padding:6px 13px;border-radius:999px;background:#f6f4f8;color:var(--ink-2);font-size:12.5px;font-weight:700}
.tag-link:hover{background:var(--accent-soft);color:var(--accent-deep)}
.article-cta{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin:34px 0 10px}
.article-back{font-size:13.5px;color:var(--muted);font-weight:700}
.article-back:hover{color:var(--accent)}
.article-related{margin-top:56px}
.article-related h2{font-size:22px;margin:0 0 20px;letter-spacing:-.01em}
.not-found{padding:20px 0 40px}

@media (max-width:1080px){
  .article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:820px){
  .page-main{padding:120px 0 72px}
  .container--narrow{width:min(100% - 40px,880px)}
  .article-content{font-size:15.5px}
  .article-content h2{font-size:20px;margin-top:32px}
}
@media (max-width:640px){
  .article-grid{grid-template-columns:minmax(0,1fr)}
  .breadcrumb span[aria-current]{max-width:100%}
  .article-meta{gap:10px}
}