/* 676a驱动网 - 全站样式表 v2（零外部依赖 · 明暗双主题） */
:root{
  color-scheme:light;
  --brand:#0b5fd8; --brand-2:#2f8dff; --brand-dark:#0a3f8f;
  --brand-solid:#0b5fd8; --on-brand:#fff;
  --brand-soft:#eaf2ff; --brand-line:#c9dcff;
  --accent:#d9600f; --accent-solid:#f26b1d; --on-accent:#fff;
  --accent-soft:#fff1e7; --accent-line:#ffd3ae;
  --ok:#0f8a5f; --ok-soft:#e6f7f0; --warn:#b8730a; --warn-soft:#fff7e8;
  --bg:#f4f7fc; --surface:#fff; --surface-2:#f7faff; --surface-3:#eef4fd;
  --surface-glass:rgba(255,255,255,.88);
  --ink:#14213a; --ink-2:#3d4a60; --ink-3:#71809a;
  --line:#e3eaf4; --line-2:#d2dded;
  --shadow:0 2px 10px rgba(20,45,90,.055);
  --shadow-md:0 10px 30px rgba(20,60,130,.10);
  --shadow-lg:0 18px 46px rgba(16,48,105,.15);
  --radius:14px; --radius-sm:10px; --radius-lg:20px;
  --max:1200px;
  --hero-1:#082f74; --hero-2:#0b5fd8; --hero-3:#3b93ff;
  --foot-1:#101d33; --foot-2:#0a1424;
  --grid-line:rgba(255,255,255,.075);
}
[data-theme="dark"]{
  color-scheme:dark;
  --brand:#77acff; --brand-2:#9ac4ff; --brand-dark:#b2d0ff;
  --brand-solid:#2f6fdf; --on-brand:#fff;
  --brand-soft:#1a2b48; --brand-line:#2b4670;
  --accent:#ff9c5c; --accent-solid:#e9702c; --on-accent:#fff;
  --accent-soft:#382518; --accent-line:#6b4227;
  --ok:#46c99a; --ok-soft:#12362c; --warn:#e5b34c; --warn-soft:#382d16;
  --bg:#0d1421; --surface:#151f30; --surface-2:#1a263a; --surface-3:#202e45;
  --surface-glass:rgba(21,31,48,.9);
  --ink:#e9f0fd; --ink-2:#b9c7dd; --ink-3:#8698b4;
  --line:#293a54; --line-2:#354967;
  --shadow:0 2px 12px rgba(0,0,0,.22);
  --shadow-md:0 12px 30px rgba(0,0,0,.34);
  --shadow-lg:0 20px 50px rgba(0,0,0,.44);
  --hero-1:#071531; --hero-2:#103b86; --hero-3:#1c63c4;
  --foot-1:#0a1220; --foot-2:#060d18;
  --grid-line:rgba(255,255,255,.045);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font:15px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;display:flex;flex-direction:column;min-height:100vh;
  transition:background-color .25s ease,color .25s ease}
a{color:var(--brand);text-decoration:none;transition:color .16s}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{line-height:1.35;margin:0 0 .6em;font-weight:700;color:var(--ink)}
h1{font-size:30px} h2{font-size:23px} h3{font-size:18px} h4{font-size:16px}
p{margin:0 0 12px}
ul,ol{padding-left:22px;margin:0 0 14px}
li{margin:5px 0}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.clear::after{content:"";display:block;clear:both}
::selection{background:var(--brand-2);color:#fff}

/* ============ 阅读进度 / 顶部导航 ============ */
.scroll-progress{position:fixed;top:0;left:0;height:3px;width:100%;z-index:120;pointer-events:none;
  background:linear-gradient(90deg,#ffb35c,var(--accent-solid),#ff7a45,var(--brand-2));
  transform:scaleX(0);transform-origin:0 50%;box-shadow:0 0 10px rgba(242,107,29,.6)}
.site-head{background:var(--surface-glass);backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;transition:box-shadow .2s,border-color .2s}
.site-head.scrolled{box-shadow:0 6px 24px rgba(16,42,88,.10);border-color:var(--line-2)}
.head-in{max-width:var(--max);margin:0 auto;padding:0 20px;height:66px;display:flex;align-items:center;gap:26px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink);font-size:20px;font-weight:800;letter-spacing:-.5px}
.logo:hover{color:var(--ink)}
.logo-mark{width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand-solid),#3d97ff 90%);position:relative;overflow:hidden;
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;
  box-shadow:0 5px 16px rgba(11,95,216,.30)}
.logo-mark::after{content:"";position:absolute;left:-14px;top:-18px;width:26px;height:70px;
  background:rgba(255,255,255,.24);transform:rotate(28deg)}
.logo small{display:block;font-size:10.5px;font-weight:600;color:var(--ink-3);letter-spacing:1.6px;line-height:1.2}
.nav{display:flex;gap:4px;flex:1}
.nav a{padding:8px 14px;border-radius:9px;color:var(--ink-2);font-size:15px;font-weight:600;white-space:nowrap;position:relative}
.nav a:hover{color:var(--brand);background:var(--brand-soft)}
.nav a.on{color:var(--brand);background:var(--brand-soft)}
.nav a.on::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--brand)}
.head-act{display:flex;gap:9px;align-items:center;flex-shrink:0;margin-left:auto}
.btn-search-ico,.theme-toggle,.nav-toggle{border:1px solid var(--line-2);background:var(--surface);color:var(--ink-2);
  border-radius:10px;cursor:pointer;transition:.16s;display:flex;align-items:center;justify-content:center}
.btn-search-ico{width:38px;height:38px;font-size:19px;line-height:1}
.btn-search-ico:hover,.nav-toggle:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.theme-toggle{height:38px;padding:0 12px;gap:6px;font:inherit;font-size:12.5px;font-weight:700}
.theme-toggle:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.tt-ico{font-size:16px;line-height:1}
.nav-toggle{display:none;width:38px;height:38px;font-size:19px}

/* ============ Hero ============ */
.hero{background:linear-gradient(122deg,var(--hero-1) 0%,var(--hero-2) 54%,var(--hero-3) 100%);
  color:#fff;padding:58px 0 96px;position:relative;overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;
  background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);
  background-size:44px 44px;mask-image:linear-gradient(100deg,rgba(0,0,0,.9),transparent 78%)}
.hero::after{content:"";position:absolute;right:-140px;top:-190px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.16),rgba(255,255,255,0) 68%);z-index:-1}
.hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:46px;align-items:center}
.hero-copy{min-width:0}
.hero-kicker{display:inline-flex;align-items:center;gap:9px;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.25);border-radius:99px;padding:5px 14px;font-size:12.5px;
  font-weight:600;color:#fff;letter-spacing:.3px;backdrop-filter:blur(6px);margin-bottom:19px}
.hk-dot{width:7px;height:7px;border-radius:50%;background:#7dffc0;box-shadow:0 0 0 4px rgba(125,255,192,.2)}
.hk-sep{opacity:.45}
.hero h1{color:#fff;font-size:38px;line-height:1.34;margin:0 0 14px;letter-spacing:-.8px;font-weight:800}
.hero-hl{background:linear-gradient(92deg,#ffffff 0%,#ffe6c4 58%,#ffc68c 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
@supports not (-webkit-background-clip:text){
  .hero-hl{color:#fff;-webkit-text-fill-color:#fff}
}
.hero p.lead{font-size:15.5px;color:rgba(255,255,255,.85);max-width:620px;margin-bottom:24px;line-height:1.85}
.search-box{display:flex;align-items:center;max-width:640px;background:#fff;color:#172033;
  border:1px solid rgba(255,255,255,.7);border-radius:15px;padding:6px 6px 6px 16px;
  box-shadow:0 16px 40px rgba(2,24,68,.26);transition:box-shadow .2s,transform .2s}
.search-box:focus-within{box-shadow:0 0 0 4px rgba(255,255,255,.22),0 18px 44px rgba(2,24,68,.34)}
.sb-ico{flex:0 0 19px;width:19px;height:19px;color:#93a2ba;margin-right:10px}
.search-box input{flex:1;border:0;outline:0;padding:12px 2px;font-size:15px;color:#172033;min-width:0;background:transparent}
.search-box input::placeholder{color:#9aa8bc}
.search-box button{border:0;background:linear-gradient(135deg,#ff8b3e,#ee5d10);color:#fff;font-weight:700;
  font-size:15px;padding:12px 26px;border-radius:10px;cursor:pointer;white-space:nowrap;
  box-shadow:0 5px 14px rgba(238,93,16,.32);transition:.16s}
.search-box button:hover{filter:brightness(1.07);transform:translateY(-1px)}
.hot-words{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:17px;font-size:12.5px;color:rgba(255,255,255,.76)}
.hw-label{margin-right:2px;font-weight:600}
.hot-words a{display:inline-block;color:#fff;background:rgba(255,255,255,.13);
  border:1px solid rgba(255,255,255,.24);padding:3px 11px;border-radius:99px;
  text-decoration:none;margin:0;font-size:12.5px;backdrop-filter:blur(4px);transition:.16s}
.hot-words a:hover{color:#fff;background:rgba(255,255,255,.26);border-color:rgba(255,255,255,.5);transform:translateY(-1px)}
.hero-alt{margin-top:17px;font-size:13.5px;color:rgba(255,255,255,.82)}
.hero-alt a{color:#fff;text-decoration:underline;text-underline-offset:4px;font-weight:600}
.hero-alt a:hover{color:#ffd9b8}

/* Hero 右侧：本站下载示意卡（纯 CSS + 内联 SVG，零外部依赖） */
.hero-visual{position:relative;min-width:0;padding:22px 22px 28px}
.hv-glow{position:absolute;left:12%;top:8%;width:80%;height:88%;border-radius:50%;
  background:radial-gradient(circle,rgba(120,190,255,.42),transparent 66%);filter:blur(24px)}
.hv-card{position:relative;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.28);
  border-radius:20px;padding:16px 18px 18px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:0 26px 60px rgba(3,24,66,.34);transform:rotate(-1.2deg);color:#fff}
.hv-top{display:flex;align-items:center;justify-content:space-between;gap:10px;
  border-bottom:1px solid rgba(255,255,255,.18);padding-bottom:12px;margin-bottom:14px}
.hv-dots{display:flex;gap:5px}
.hv-dots i{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.45)}
.hv-dots i:first-child{background:#ff8d72}.hv-dots i:nth-child(2){background:#ffd36e}.hv-dots i:last-child{background:#79e6a8}
.hv-path{font-size:11px;color:rgba(255,255,255,.78);letter-spacing:.4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hv-device{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.hv-printer{flex:0 0 74px;width:74px;height:62px;color:rgba(255,255,255,.95)}
.hv-device-txt{min-width:0}
.hv-device-txt b{display:block;font-size:16px;letter-spacing:.2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hv-device-txt span{display:block;font-size:12px;color:rgba(255,255,255,.75);margin-top:2px}
.hv-row{display:flex;align-items:center;gap:11px;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:10px 12px}
.hv-file{flex:0 0 32px;width:32px;height:32px;border-radius:9px;background:rgba(255,255,255,.2);
  display:flex;align-items:center;justify-content:center;font-size:16px}
.hv-row>div{min-width:0;flex:1}
.hv-row b{display:block;font-size:12.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hv-row span.hv-sub{display:block;font-size:11px;color:rgba(255,255,255,.72);margin-top:1px}
.hv-ok{flex:0 0 22px;width:22px;height:22px;border-radius:50%;background:#68e0a8;color:#083a25;
  font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center}
.hv-bar{height:5px;border-radius:5px;background:rgba(255,255,255,.2);margin:13px 0 12px;overflow:hidden}
.hv-bar i{display:block;height:100%;width:100%;border-radius:5px;background:linear-gradient(90deg,#7dffc0,#59b9ff)}
.hv-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:11.5px;color:rgba(255,255,255,.82)}
.hv-btn{background:#fff;color:#0b4fae;font-weight:800;padding:6px 14px;border-radius:99px;font-size:11.5px}
.hv-badge{position:absolute;z-index:2;background:#fff;color:#13233d;border-radius:13px;
  padding:9px 14px;box-shadow:0 14px 30px rgba(2,20,58,.28);display:flex;flex-direction:column;line-height:1.25}
.hv-badge b{font-size:18px;color:#0b5fd8}
.hv-badge span{font-size:11px;color:#6b7c95}
.hv-badge.b1{left:2px;bottom:-28px;transform:rotate(4deg)}
.hv-badge.b2{right:0;top:-24px;transform:rotate(-5deg)}

/* ============ 统计条（悬浮卡片） ============ */
.stats{background:transparent;border:0;position:relative;z-index:3;margin-top:-48px}
.stats-in{max-width:var(--max);margin:0 auto;padding:18px 14px;display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg)}
.stat{display:flex;align-items:center;gap:13px;padding:4px 18px;border-right:1px solid var(--line);min-width:0}
.stat:last-child{border-right:0}
.stat:nth-child(1){--h:212;--ico:"型"}
.stat:nth-child(2){--h:262;--ico:"牌"}
.stat:nth-child(3){--h:24;--ico:"障"}
.stat:nth-child(4){--h:158;--ico:"存"}
.stat::before{content:var(--ico);flex:0 0 44px;width:44px;height:44px;border-radius:13px;
  background:linear-gradient(135deg,hsl(var(--h) 92% 96%),hsl(var(--h) 88% 89%));
  color:hsl(var(--h) 72% 38%);font-size:17px;font-weight:800;display:flex;align-items:center;justify-content:center}
[data-theme="dark"] .stat::before{background:hsl(var(--h) 42% 22%);color:hsl(var(--h) 85% 74%)}
.stat-n{font-size:25px;font-weight:800;color:var(--brand);line-height:1.15;letter-spacing:-.5px}
.stat-t{font-size:12.5px;color:var(--ink-3);line-height:1.5}

/* ============ 通用区块 ============ */
main{padding-bottom:56px}
.section{margin-top:38px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:17px;flex-wrap:wrap}
.sec-head h2{font-size:23px;margin:0;position:relative;padding-left:14px;letter-spacing:-.3px}
.sec-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand-2),var(--brand-solid))}
.kicker{display:block;font-size:11.5px;font-weight:800;color:var(--brand);letter-spacing:2.2px;margin:0 0 5px 14px}
.sec-head .sub{color:var(--ink-3);font-size:13px;margin:5px 0 0 14px}
.sec-head a.more{font-size:13.5px;font-weight:700;white-space:nowrap;background:var(--surface);
  border:1px solid var(--line);border-radius:99px;padding:6px 14px;box-shadow:var(--shadow)}
.sec-head a.more:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.pad{padding:24px}

/* 品牌网格 */
.brand-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:13px}
.brand-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:17px 12px 15px;text-align:center;transition:.2s cubic-bezier(.2,.7,.3,1);display:block;
  color:var(--ink);overflow:hidden}
.brand-card::after{content:"→";position:absolute;right:9px;top:8px;font-size:13px;color:var(--brand);
  opacity:0;transform:translateX(-4px);transition:.2s}
.brand-card::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,hsl(var(--h) 80% 62%),hsl(var(--h) 85% 78%));
  transform:scaleX(0);transition:.25s;transform-origin:0 50%}
.brand-card:nth-child(6n+1){--h:212}.brand-card:nth-child(6n+2){--h:265}
.brand-card:nth-child(6n+3){--h:24}.brand-card:nth-child(6n+4){--h:158}
.brand-card:nth-child(6n+5){--h:330}.brand-card:nth-child(6n){--h:190}
.brand-card:hover{border-color:var(--brand-line);box-shadow:var(--shadow-md);transform:translateY(-4px);color:var(--ink)}
.brand-card:hover::after{opacity:1;transform:none}
.brand-card:hover::before{transform:scaleX(1)}
.brand-ico{width:46px;height:46px;margin:0 auto 11px;border-radius:14px;
  background:linear-gradient(135deg,hsl(var(--h) 92% 96%),hsl(var(--h) 88% 88%));
  color:hsl(var(--h) 70% 38%);display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:800;transition:.2s}
[data-theme="dark"] .brand-ico{background:hsl(var(--h) 42% 23%);color:hsl(var(--h) 85% 74%)}
.brand-card:hover .brand-ico{transform:scale(1.08) rotate(-4deg)}
.brand-card b{display:block;font-size:14px;line-height:1.4}
.brand-card span{display:block;font-size:11.5px;color:var(--ink-3);margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* 三步流程 */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.flow-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 22px 20px;display:block;color:var(--ink);box-shadow:var(--shadow);transition:.2s}
.flow-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-line);color:var(--ink)}
.flow-card::after{content:"→";position:absolute;right:-15px;top:50%;transform:translateY(-50%);z-index:3;
  width:30px;height:30px;border-radius:50%;background:var(--brand-solid);border:2px solid var(--bg);
  color:#fff;font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(11,95,216,.3)}
.flow-card:last-child::after{display:none}
.flow-n{font-size:12px;font-weight:800;color:var(--brand);letter-spacing:2px}
.flow-ico{display:flex;width:42px;height:42px;border-radius:12px;background:var(--brand-soft);color:var(--brand);
  align-items:center;justify-content:center;font-size:19px;font-weight:800;margin:9px 0 12px}
.flow-card h3{font-size:16.5px;margin:0 0 6px}
.flow-card p{font-size:13px;color:var(--ink-3);margin:0;line-height:1.75}

/* 最近查看 */
.recent-strip{margin-top:26px}
.recent-strip[hidden]{display:none}
.recent-list{display:flex;flex-wrap:wrap;gap:9px}
.recent-list a{display:inline-flex;align-items:center;gap:7px;max-width:100%;background:var(--surface);
  border:1px solid var(--line);border-radius:99px;padding:7px 14px;font-size:13px;color:var(--ink-2);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;box-shadow:var(--shadow)}
.recent-list a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.recent-list a::before{content:"◷";color:var(--brand);font-size:14px}
.btn-clear{border:0;background:transparent;color:var(--ink-3);font:inherit;font-size:13px;cursor:pointer;padding:4px 6px}
.btn-clear:hover{color:var(--accent)}

/* 驱动列表卡片 */
.driver-list{display:flex;flex-direction:column;gap:13px}
.driver-item{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;display:flex;gap:16px;align-items:flex-start;transition:.2s;overflow:hidden}
.driver-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--brand-2),var(--accent-solid));opacity:0;transition:.2s}
.driver-item:hover{border-color:var(--brand-line);box-shadow:var(--shadow-md)}
.driver-item:hover::before{opacity:1}
.driver-item .di-body{flex:1;min-width:0}
.driver-item h3{font-size:17px;margin:0 0 9px;letter-spacing:-.2px}
.driver-item h3 a{color:var(--ink)}
.driver-item h3 a:hover{color:var(--brand)}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:9px}
.tag{font-size:11.5px;line-height:1.9;padding:0 9px;border-radius:6px;background:var(--surface-3);
  color:var(--ink-2);white-space:nowrap}
.tag.hot{background:var(--accent-soft);color:var(--accent)}
.tag.ok{background:var(--ok-soft);color:var(--ok)}
.tag.blue{background:var(--brand-soft);color:var(--brand)}
.desc{color:var(--ink-2);font-size:13.5px;margin:0 0 10px;line-height:1.75}
.meta-line{font-size:12.5px;color:var(--ink-3);display:flex;flex-wrap:wrap;gap:14px}
.di-act{flex-shrink:0;display:flex;flex-direction:column;gap:8px;align-items:stretch;min-width:132px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:10px;padding:10px 18px;
  font-size:14px;font-weight:700;border:1px solid transparent;cursor:pointer;text-align:center;
  transition:.18s;line-height:1.4}
.btn-primary{background:var(--brand-solid);color:var(--on-brand);box-shadow:0 4px 12px rgba(11,95,216,.2)}
.btn-primary:hover{background:var(--brand-dark);color:var(--on-brand);transform:translateY(-1px)}
.btn-accent{background:linear-gradient(135deg,#ff8b3e,#ee5d10);color:var(--on-accent);
  box-shadow:0 4px 12px rgba(238,93,16,.24)}
.btn-accent:hover{color:var(--on-accent);filter:brightness(1.07);transform:translateY(-1px)}
.btn-ghost{background:var(--surface);color:var(--brand);border-color:var(--brand-line)}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand)}
.btn-sm{padding:7px 13px;font-size:13px}
.btn-block{width:100%}
.btn-lg{padding:14px 26px;font-size:16px}

/* 面包屑 / 页标题 */
.crumb{font-size:13px;color:var(--ink-3);padding:18px 0 0}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand)}
.crumb span{margin:0 7px;color:var(--ink-3);opacity:.6}
.crumb span.cur{color:var(--ink-2);opacity:1;font-weight:600}
.page-head{margin:16px 0 22px;position:relative}
.page-head::before{content:"";position:absolute;left:-20px;top:2px;width:4px;height:26px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand-2),var(--brand-solid))}
.page-head h1{font-size:29px;margin-bottom:8px;letter-spacing:-.5px}
.page-head .intro{color:var(--ink-2);font-size:14.5px;max-width:860px;margin:0}

/* 两栏布局 */
.cols{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}
.cols>*{min-width:0}
.side{display:flex;flex-direction:column;gap:16px}
.side-box{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;
  box-shadow:var(--shadow)}
.side-box h3{font-size:16px;margin:0 0 12px;padding-bottom:11px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:8px}
.side-box h3::before{content:"";width:4px;height:15px;border-radius:3px;background:var(--brand)}
.link-list{list-style:none;padding:0;margin:0}
.link-list li{margin:0;padding:7px 0;border-bottom:1px dashed var(--line);font-size:13.5px}
.link-list li:last-child{border-bottom:0}
.link-list li a{display:flex;justify-content:space-between;gap:8px;color:var(--ink-2)}
.link-list li a:hover{color:var(--brand)}
.link-list li em{font-style:normal;color:var(--ink-3);font-size:12px;white-space:nowrap}

/* 正文 */
.content{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow)}
.content::before{content:"";position:absolute;left:22px;right:22px;top:-1px;height:3px;border-radius:0 0 4px 4px;
  background:linear-gradient(90deg,var(--brand-2),var(--accent-solid),transparent)}
.content h2{font-size:21px;margin:30px 0 13px;padding-left:13px;border-left:4px solid var(--brand)}
.content h2:first-child{margin-top:0}
.content h3{font-size:17px;margin:22px 0 10px}
.content p{color:var(--ink-2)}
.content strong{color:var(--ink)}
.content ul li,.content ol li{color:var(--ink-2)}
.note{position:relative;background:var(--brand-soft);border-left:4px solid var(--brand);padding:13px 16px 13px 18px;
  border-radius:0 10px 10px 0;margin:16px 0;font-size:14px;color:var(--ink-2)}
.note.warn{background:var(--warn-soft);border-left-color:var(--accent-solid)}
.note::before{content:"i";position:absolute;left:-4px;top:-4px;display:none}
.ai-summary{position:relative;background:linear-gradient(120deg,var(--brand-soft),var(--surface) 72%);
  border:1px solid var(--brand-line);border-radius:var(--radius);padding:20px 24px;margin-bottom:20px;
  box-shadow:var(--shadow);overflow:hidden}
.ai-summary::after{content:"";position:absolute;right:-46px;top:-56px;width:170px;height:170px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,141,255,.13),transparent 68%)}
.as-head{display:flex;align-items:center;gap:9px;margin-bottom:10px;position:relative;z-index:1}
.as-ico{width:26px;height:26px;border-radius:8px;background:var(--brand-solid);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px}
.as-head h2{font-size:16px;margin:0;padding:0;border:0;color:var(--brand-dark)}
.as-tag{font-size:11px;font-weight:700;color:var(--brand);background:var(--surface);
  border:1px solid var(--brand-line);border-radius:99px;padding:1px 9px}
.ai-summary ul{margin:0;padding:0;list-style:none;columns:2;column-gap:34px;position:relative;z-index:1}
.ai-summary li{font-size:13.5px;color:var(--ink-2);margin:5px 0;padding-left:17px;position:relative;
  break-inside:avoid;line-height:1.75}
.ai-summary li::before{content:"";position:absolute;left:2px;top:10px;width:6px;height:6px;border-radius:50%;
  background:var(--brand-2)}
@media(max-width:860px){.ai-summary ul{columns:1}}

/* 表格 */
.tbl{width:100%;border-collapse:collapse;font-size:14px;margin:14px 0}
.tbl th,.tbl td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.tbl th{background:linear-gradient(180deg,var(--surface-2),var(--surface-3));color:var(--ink);font-weight:700;
  width:150px;white-space:nowrap}
.tbl td{color:var(--ink-2);overflow-wrap:anywhere;word-break:break-word}
.tbl tr:hover td{background:var(--surface-2)}
.tbl-wrap{overflow-x:auto}

/* 步骤 */
.steps{list-style:none;padding:0;margin:16px 0;counter-reset:st}
.steps>li{position:relative;padding:0 0 22px 48px;counter-increment:st;border-left:2px solid var(--brand-line);margin-left:16px}
.steps>li:last-child{border-left-color:transparent;padding-bottom:0}
.steps>li::before{content:counter(st);position:absolute;left:-17px;top:-2px;width:32px;height:32px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand-solid),var(--brand-2));color:#fff;font-weight:800;font-size:14px;
  display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(11,95,216,.24)}
.steps>li b{display:block;font-size:15.5px;margin-bottom:4px;color:var(--ink)}
.steps>li p{color:var(--ink-2);font-size:14px;margin:0}

/* FAQ */
.faq-item{border:1px solid var(--line);border-radius:11px;margin-bottom:10px;overflow:hidden;
  background:var(--surface);transition:.2s}
.faq-item:hover{border-color:var(--brand-line)}
.faq-item[open]{box-shadow:var(--shadow)}
.faq-item summary{cursor:pointer;padding:14px 17px;font-weight:600;font-size:14.5px;color:var(--ink);list-style:none;
  display:flex;align-items:center;gap:10px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"Q";flex-shrink:0;width:23px;height:23px;border-radius:7px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:800;
  display:flex;align-items:center;justify-content:center}
.faq-item summary::after{content:"+";margin-left:auto;color:var(--ink-3);font-size:18px;font-weight:400;line-height:1}
.faq-item[open] summary::after{content:"−"}
.faq-item[open] summary{border-bottom:1px solid var(--line);background:var(--surface-2)}
.faq-a{padding:14px 17px 16px 50px;color:var(--ink-2);font-size:14px;position:relative}
.faq-a::before{content:"A";position:absolute;left:17px;top:14px;width:23px;height:23px;border-radius:7px;
  background:var(--ok-soft);color:var(--ok);font-size:12px;font-weight:800;display:flex;
  align-items:center;justify-content:center}
.faq-a p:last-child{margin-bottom:0}

/* 网格卡片（故障/教程/工具） */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.tile{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 19px 18px;display:block;transition:.2s cubic-bezier(.2,.7,.3,1);color:var(--ink);overflow:hidden}
.tile::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--brand-2),var(--accent-solid));transform:scaleX(0);transform-origin:0 50%;transition:.25s}
.tile:nth-child(3n+1){--h:212}.tile:nth-child(3n+2){--h:265}.tile:nth-child(3n){--h:170}
.tile:hover{border-color:var(--brand-line);box-shadow:var(--shadow-md);transform:translateY(-4px);color:var(--ink)}
.tile:hover::before{transform:scaleX(1)}
.tile-ico{width:42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,hsl(var(--h) 92% 96%),hsl(var(--h) 88% 88%));
  color:hsl(var(--h) 70% 38%);font-size:18px;font-weight:800;
  display:flex;align-items:center;justify-content:center;margin-bottom:13px;transition:.2s}
[data-theme="dark"] .tile-ico{background:hsl(var(--h) 42% 23%);color:hsl(var(--h) 85% 74%)}
.tile:hover .tile-ico{transform:rotate(-6deg) scale(1.06)}
.tile h3{font-size:16px;margin:0 0 7px}
.tile p{font-size:13px;color:var(--ink-3);margin:0;line-height:1.7}
.tile .tile-foot{margin-top:13px;font-size:12.5px;color:var(--brand);font-weight:700;
  display:inline-flex;align-items:center;gap:5px}
.tile:hover .tile-foot{gap:9px}

/* 下载区 */
.download-box{border:1px solid var(--accent-line);background:linear-gradient(160deg,var(--accent-soft),var(--surface) 70%);
  border-radius:var(--radius);padding:24px;margin:20px 0;box-shadow:var(--shadow)}
.download-box h2{font-size:19px;margin:0 0 6px;padding:0;border:0}
.download-box .db-sub{color:var(--ink-3);font-size:13px;margin-bottom:16px}
.dl-btns{display:flex;flex-wrap:wrap;gap:10px}
.dl-tip{font-size:12.5px;color:var(--ink-3);margin:14px 0 0;line-height:1.8}

/* 广告位 */
.adslot{margin:18px 0;border:1px dashed var(--line-2);border-radius:10px;background:var(--surface-2);min-height:60px;
  display:flex;align-items:center;justify-content:center;color:var(--ink-3);font-size:12px;text-align:center;padding:10px}
.adslot.filled{border:0;background:transparent;min-height:0;display:block;padding:0}
.adslot.filled img,.adslot.filled iframe{display:block;margin:0 auto}

/* 分页 */
.pager{display:flex;flex-wrap:wrap;gap:7px;margin-top:22px;justify-content:center}
.pager a,.pager span{padding:7px 13px;border:1px solid var(--line);border-radius:9px;
  background:var(--surface);font-size:13.5px;color:var(--ink-2)}
.pager a:hover{border-color:var(--brand);color:var(--brand)}
.pager .cur{background:var(--brand-solid);border-color:var(--brand-solid);color:#fff}

/* 页脚 */
.site-foot{position:relative;overflow:hidden;background:linear-gradient(150deg,var(--foot-1),var(--foot-2));
  color:#a9b8cd;padding:42px 0 0;margin-top:auto;flex-shrink:0;border-top:3px solid var(--brand-solid)}
.site-foot::before{content:"";position:absolute;right:-120px;top:-180px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,141,255,.16),transparent 68%)}
.site-foot .wrap{position:relative;z-index:1}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;padding-bottom:30px}
.foot-grid h4{color:#fff;font-size:15px;margin:0 0 14px;position:relative;padding-left:12px}
.foot-grid h4::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,#ff9a52,var(--brand-2))}
.foot-grid p{font-size:13px;line-height:1.85;margin:0 0 10px}
.foot-grid a{color:#a9b8cd;font-size:13px;display:block;padding:3px 0}
.foot-grid a:hover{color:#fff;transform:translateX(2px)}
.foot-logo{color:#fff;font-size:19px;font-weight:800;display:flex;align-items:center;gap:9px;margin-bottom:13px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.09);padding:16px 0 24px;font-size:12.5px;
  color:#7d8da6;line-height:1.9}
.foot-bottom a{color:#7d8da6}
.foot-bottom a:hover{color:#fff}

/* 搜索页 */
.search-page-head{background:var(--surface);border-bottom:1px solid var(--line);padding:28px 0}
.search-result{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:17px 20px;margin-bottom:10px;transition:.18s}
.search-result:hover{border-color:var(--brand-line);box-shadow:var(--shadow-md);transform:translateX(3px)}
.search-result h3{font-size:16px;margin:0 0 5px}
.search-result p{font-size:13px;color:var(--ink-3);margin:0}
.search-result .sr-type{font-size:11.5px;color:var(--brand);background:var(--brand-soft);
  padding:2px 9px;border-radius:6px;margin-right:8px}
.empty{padding:50px 20px;text-align:center;color:var(--ink-3)}
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 8px}
.filter-btn{font:inherit;font-size:13px;line-height:1.6;padding:6px 14px;border:1px solid var(--line);
  border-radius:99px;background:var(--surface);color:var(--ink-2);cursor:pointer;transition:.16s}
.filter-btn:hover{border-color:var(--brand);color:var(--brand)}
.filter-btn.on{background:var(--brand-solid);border-color:var(--brand-solid);color:#fff;font-weight:700;
  box-shadow:0 4px 12px rgba(11,95,216,.22)}
.suggest-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:12px}
.suggest-grid h4{margin:0 0 8px;font-size:14px}
.suggest-grid .sitemap-links a{font-size:12.5px;padding:4px 9px}
@media(max-width:760px){.suggest-grid{grid-template-columns:1fr}}
.hot-tags{margin-top:12px;font-size:13px;color:var(--ink-3)}
.hot-tags a{display:inline-block;margin:4px 10px 0 0;padding:4px 12px;border:1px solid var(--line);
  border-radius:99px;background:var(--surface);color:var(--ink-2);font-size:12.5px}
.hot-tags a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}

/* 工具 */
.tool-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.tool-row label{font-size:14px;color:var(--ink-2);min-width:96px}
.tool-row input,.tool-row select{border:1px solid var(--line-2);border-radius:9px;padding:9px 12px;
  font-size:14px;color:var(--ink);background:var(--surface);outline:0;transition:.16s}
.tool-row input:focus,.tool-row select:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.tool-out{background:linear-gradient(120deg,var(--brand-soft),var(--surface));border:1px solid var(--brand-line);
  border-radius:11px;padding:17px 19px;font-size:15px;color:var(--ink)}
.tool-out b{color:var(--brand);font-size:20px}
.check-list{list-style:none;padding:0;margin:0}
.check-list li{padding:10px 0;border-bottom:1px dashed var(--line);display:flex;gap:10px;
  align-items:flex-start;font-size:14px;color:var(--ink-2)}
.check-list li:last-child{border:0}
.check-list input{margin-top:5px;accent-color:var(--brand-solid);width:16px;height:16px;flex-shrink:0}

/* 其它 */
.backtop{position:fixed;right:22px;bottom:24px;width:44px;height:44px;border-radius:50%;
  background:var(--brand-solid);color:#fff;border:0;box-shadow:0 8px 24px rgba(11,95,216,.38);
  font-size:19px;cursor:pointer;display:none;z-index:60;transition:.18s}
.backtop:hover{transform:translateY(-3px);filter:brightness(1.1)}
.badge-free{display:inline-block;background:var(--ok-soft);color:var(--ok);font-size:12px;
  font-weight:700;padding:2px 9px;border-radius:6px}
.sitemap-sec{margin-bottom:22px}
.sitemap-links{display:flex;flex-wrap:wrap;gap:8px}
.sitemap-links a{font-size:13px;background:var(--surface);border:1px solid var(--line);border-radius:8px;
  padding:6px 12px;color:var(--ink-2);transition:.16s}
.sitemap-links a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);transform:translateY(-1px)}
.muted{color:var(--ink-3)}

/* ============ 本站下载中心 / 下载页 ============ */
.dl-panel,.dl-panel-head>*,.dl-verify,.dl-verify p{min-width:0}
.dl-verify code,.dl-file code,.content code{overflow-wrap:anywhere;word-break:break-word}
.dl-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:18px 0}
.dl-stats>div{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;text-align:center;box-shadow:var(--shadow)}
.dl-stats b{display:block;font-size:26px;color:var(--brand);line-height:1.2}
.dl-stats span{font-size:12.5px;color:var(--ink-3)}
.dl-count{font-size:12px;color:var(--ink-3);font-weight:400;margin-left:10px}
.dl-list{list-style:none;padding:0;margin:10px 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px}
.dl-list li{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:8px 0;
  border-bottom:1px dashed var(--line);font-size:14px;margin:0}
.dl-list li>a{font-weight:600}
.dl-list em{font-style:normal;color:var(--ink-3);font-size:12px;margin-left:auto}
.dl-badge{display:inline-block;padding:1px 9px;border-radius:99px;font-size:11.5px;font-weight:700;
  white-space:nowrap;line-height:1.7}
.dl-badge.ok{background:var(--ok-soft);color:var(--ok);border:1px solid var(--ok)}
.dl-badge.wait{background:var(--surface-3);color:var(--ink-3);border:1px solid var(--line)}
.dl-file{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:14px;padding:12px 15px;background:var(--surface);
  border:1px dashed var(--accent-line);border-radius:10px;font-size:12.5px;color:var(--ink-3)}
.dl-file b{color:var(--ink-2)}
.dl-file code{font-size:12px;color:var(--brand);background:var(--brand-soft);padding:1px 6px;border-radius:5px}
.dl-file.pending{background:var(--surface-2);border-color:var(--line);color:var(--ink-2);display:block;line-height:1.75}
/* 每个型号的「下载地址三件套」 */
.addr-box{margin-top:12px;border:1px solid var(--line);border-radius:10px;background:var(--surface-2);overflow:hidden}
.addr-row{display:flex;align-items:center;gap:10px;padding:9px 12px;border-top:1px dashed var(--line);min-width:0}
.addr-row:first-child{border-top:0}
.addr-k{flex:0 0 auto;width:60px;font-size:12px;font-weight:700;color:var(--ink-3);letter-spacing:.02em}
.addr-row code{flex:1 1 auto;min-width:0;font-size:12.5px;color:var(--brand);background:var(--brand-soft);
  padding:3px 8px;border-radius:6px;overflow-wrap:anywhere;word-break:break-all;line-height:1.6}
.addr-row .btn{flex:0 0 auto}
.tbl code.fname{font-size:12.5px;color:var(--ink-2);background:var(--surface-3);padding:1px 6px;
  border-radius:5px;white-space:nowrap;overflow-wrap:normal}
.dl-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-md);padding:26px;margin:18px 0 20px;position:relative;overflow:hidden}
.dl-panel::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--brand-2),var(--accent-solid),transparent)}
.dl-panel.pending{border-style:dashed}
.dl-panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;
  padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:18px}
.dl-panel-head h2{font-size:23px;margin:10px 0 6px}
.dl-panel-head p{font-size:13.5px;color:var(--ink-3);margin:0}
.dl-size{text-align:center;flex-shrink:0;background:var(--brand-soft);border-radius:12px;padding:12px 18px}
.dl-size b{display:block;font-size:22px;color:var(--brand)}
.dl-size span{font-size:11.5px;color:var(--ink-3)}
.dl-panel .dl-btns{margin-bottom:4px}
.dl-status{margin:12px 0 0;padding:10px 14px;border-radius:9px;background:var(--ok-soft);
  color:var(--ok);font-size:13px;border:1px solid var(--ok)}
.dl-panel .tbl-wrap{margin-top:16px}
.dl-verify{margin-top:18px;padding:16px 17px;background:var(--surface-2);border:1px solid var(--line);border-radius:11px}
.dl-verify h3{font-size:15px;margin:0 0 9px}
.dl-verify p{font-size:13px;margin:0 0 9px}
.dl-verify code{background:var(--surface-3);border:1px solid var(--line);border-radius:5px;padding:2px 6px;font-size:12px}
.dl-verify code.hash{display:inline-block;max-width:100%;overflow-wrap:anywhere;word-break:break-all;
  background:var(--surface);color:var(--ink-2)}
.dl-verify .btn{margin-left:8px}
.hero-alt{font-size:13.5px;color:rgba(255,255,255,.86)}

/* ============ 设备示意图 ============ */
.prod-hero{display:flex;gap:22px;align-items:center;
  background:linear-gradient(120deg,var(--surface-2),var(--surface) 62%);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin:20px 0}
.prod-hero .ph-media{position:relative;flex:0 0 270px;max-width:270px;border:1px solid var(--line);
  border-radius:12px;overflow:hidden;background:var(--surface);line-height:0;box-shadow:var(--shadow)}
.prod-hero .ph-media img{width:100%;height:auto;display:block}
.ph-cap{display:block;background:var(--surface-3);color:var(--ink-3);font-size:11px;line-height:1.6;
  padding:5px 8px;text-align:center;border-top:1px solid var(--line);letter-spacing:.2px}
.prod-hero .ph-info{flex:1;min-width:0}
.ph-brand{font-size:13px;color:var(--ink-3);font-weight:600}
.ph-model{font-size:23px;font-weight:800;line-height:1.35;margin:2px 0 7px;color:var(--ink);overflow-wrap:anywhere}
.ph-type{font-size:13.5px;color:var(--ink-2);margin:0 0 11px;line-height:1.65}
.ph-tags{margin-bottom:10px}
.ph-note{font-size:12.5px;line-height:1.75;color:var(--ink-3);margin:0}
.prod-hero.compact{padding:15px;margin:18px 0 0}
.prod-hero.compact .ph-media{flex-basis:200px;max-width:200px}
.prod-hero.compact .ph-model{font-size:19px}
.prod-hero.compact .ph-note{display:none}
.di-thumb{flex:0 0 96px;width:96px;align-self:flex-start;border:1px solid var(--line);
  border-radius:10px;overflow:hidden;background:var(--surface-2);line-height:0;display:block;transition:.18s}
.di-thumb:hover{border-color:var(--brand);box-shadow:var(--shadow-md)}
.di-thumb img{width:100%;height:auto;display:block;aspect-ratio:3/2;object-fit:cover}

/* ============ 入场动效（JS 尊重 prefers-reduced-motion） ============ */
.reveal-ready [data-reveal]{opacity:0;transform:translateY(16px);
  transition:opacity .55s ease,transform .55s cubic-bezier(.2,.7,.3,1)}
.reveal-ready [data-reveal].in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .reveal-ready [data-reveal]{opacity:1!important;transform:none!important}
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .brand-grid{grid-template-columns:repeat(4,1fr)}
  .cols{grid-template-columns:1fr}
  .side{display:grid;grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .hero-grid{gap:26px}
  .hero h1{font-size:33px}
}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{display:none}
  .hero{padding:48px 0 90px}
  .hero p.lead{max-width:none}
}
@media (max-width:768px){
  body{font-size:14.5px}
  .head-in{height:60px;gap:10px}
  .logo{font-size:17px}
  .logo-mark{width:33px;height:33px;font-size:15px}
  .nav-toggle{display:flex;margin-left:0}
  .btn-search-ico{display:none}
  .tt-txt{display:none}
  .theme-toggle{width:38px;padding:0;justify-content:center}
  .nav{display:none;position:absolute;top:60px;left:0;right:0;background:var(--surface);
    border-bottom:1px solid var(--line);flex-direction:column;padding:10px 16px 16px;
    box-shadow:0 14px 28px rgba(20,40,80,.14);gap:2px}
  .nav.open{display:flex}
  .nav a{padding:10px 12px}
  .nav a.on::after{display:none}
  .hero{padding:36px 0 64px}
  .hero h1{font-size:27px}
  .hero p.lead{font-size:14px}
  .hero-kicker{font-size:11.5px;padding:4px 11px}
  .search-box{border-radius:12px;padding:5px 5px 5px 13px}
  .search-box button{padding:11px 16px}
  .stats{margin-top:-42px}
  .stats-in{grid-template-columns:repeat(2,1fr);gap:8px 0;padding:14px 8px}
  .stat{border-right:0;border-bottom:1px solid var(--line);padding:8px 10px;gap:10px}
  .stat:nth-child(3),.stat:nth-child(4){border-bottom:0}
  .stat::before{flex-basis:38px;width:38px;height:38px;font-size:15px;border-radius:11px}
  .stat-n{font-size:21px}
  .brand-grid{grid-template-columns:repeat(3,1fr)}
  .grid-3,.grid-2,.flow{grid-template-columns:1fr}
  .flow-card::after{display:none}
  .flow{gap:11px}
  .side{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  h1{font-size:24px}
  .page-head h1{font-size:23px}
  .page-head::before{left:-14px;height:22px}
  .content{padding:19px}
  .driver-item{flex-flow:row wrap;gap:12px;padding:16px}
  .driver-item .di-body{flex:1 1 calc(100% - 92px)}
  .di-act{flex-direction:row;min-width:0;width:100%;order:3}
  .di-act .btn{flex:1}
  .di-thumb{flex-basis:76px;width:76px}
  .tbl th{width:110px;white-space:normal}
  .backtop{right:14px;bottom:14px}
  .dl-stats{grid-template-columns:repeat(2,1fr)}
  .dl-list{grid-template-columns:1fr}
  .dl-panel{padding:17px}
  .dl-panel-head{flex-direction:column;gap:12px}
  .dl-size{text-align:left;padding:8px 14px}
  .dl-panel-head h2{font-size:20px}
  .addr-row{flex-wrap:wrap;gap:6px}
  .addr-k{width:100%}
  .addr-row .btn{width:100%}
  .prod-hero{flex-direction:column;align-items:stretch;gap:14px;padding:15px}
  .prod-hero .ph-media,.prod-hero.compact .ph-media{flex:none;max-width:100%;width:100%}
  .ph-model{font-size:19px}
}
@media (max-width:420px){
  .brand-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr}
  .stats-in{grid-template-columns:repeat(2,1fr)}
  .di-thumb{flex-basis:64px;width:64px}
  .driver-item .di-body{flex:1 1 calc(100% - 80px)}
  .driver-item h3{font-size:15px}
  .hero h1{font-size:24px}
  .hot-words a{font-size:11.5px;padding:3px 9px}
  .sec-head a.more{padding:5px 11px;font-size:12.5px}
}
@media print{
  .site-head,.site-foot,.backtop,.adslot,.dl-btns,.btn,.hero-visual,.scroll-progress,.theme-toggle{display:none!important}
  .prod-hero,.di-thumb{display:none!important}
  body{background:#fff;color:#000}
  .content,.card{border:0;box-shadow:none}
  .reveal-ready [data-reveal]{opacity:1!important;transform:none!important}
}