:root{
  --brand:#c8102e;
  --brand-2:#ff4d6d;
  --brand-dark:#8f0b20;
  --brand-soft:#fdecef;
  --ink:#1d1f23;
  --ink-2:#4a4f57;
  --ink-3:#7a808a;
  --line:#e6e8ec;
  --bg:#ffffff;
  --bg-2:#f7f8fa;
  --glass:rgba(255,255,255,.62);
  --glass-line:rgba(255,255,255,.55);
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 28px rgba(20,22,26,.08);
  --shadow-lg:0 20px 48px rgba(200,16,46,.14);
  --max:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

html[data-theme="dark"]{
  --brand:#ff5a76;
  --brand-2:#ff8ba0;
  --brand-dark:#ff8ba0;
  --brand-soft:#2a1418;
  --ink:#eef0f3;
  --ink-2:#c3c8d0;
  --ink-3:#949aa4;
  --line:#2a2e35;
  --bg:#14161a;
  --bg-2:#1b1e24;
  --glass:rgba(30,33,39,.62);
  --glass-line:rgba(255,255,255,.08);
  --shadow:0 8px 28px rgba(0,0,0,.45);
  --shadow-lg:0 20px 48px rgba(0,0,0,.55);
}

*{box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.8;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
  transition:background .35s var(--ease),color .35s var(--ease);
}

a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease);}
a:hover{text-decoration:underline;}

img,svg{max-width:100%;display:block;}

h1,h2,h3,h4{line-height:1.4;margin:0 0 .6em;font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(26px,3.4vw,42px);}
h2{font-size:clamp(22px,2.4vw,30px);}
h3{font-size:clamp(18px,1.8vw,22px);}
h4{font-size:17px;}

p{margin:0 0 1em;color:var(--ink-2);}

ul,ol{color:var(--ink-2);padding-left:1.2em;}
li{margin-bottom:.4em;}

strong{color:var(--ink);}

blockquote{margin:0;}

.wrap{max-width:var(--max);margin:0 auto;padding:0 20px;}

.skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden;}
.skip-link:focus{
  left:12px;top:12px;width:auto;height:auto;
  background:var(--brand);color:#fff;padding:8px 14px;border-radius:8px;z-index:999;
}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--glass);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  backdrop-filter:saturate(180%) blur(16px);
  transition:background .35s var(--ease),border-color .35s var(--ease);
}

.header-inner{
  display:flex;align-items:center;gap:18px;height:68px;
}

.brand{
  display:flex;align-items:center;gap:10px;
  font-weight:800;font-size:18px;color:var(--ink);white-space:nowrap;
  transition:transform .3s var(--ease);
}
.brand:hover{text-decoration:none;transform:translateY(-1px);}
.brand-mark{
  width:34px;height:34px;flex:none;
  border-radius:10px;
  box-shadow:0 6px 16px rgba(200,16,46,.28);
  transition:transform .5s var(--ease),box-shadow .3s var(--ease);
}
.brand:hover .brand-mark{transform:rotate(-8deg) scale(1.05);box-shadow:0 8px 22px rgba(200,16,46,.4);}

.nav{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap;}
.nav a{
  color:var(--ink-2);padding:8px 12px;border-radius:9px;font-size:15px;
  position:relative;transition:color .25s var(--ease),background .25s var(--ease);
}
.nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav a:hover,.nav a[aria-current="page"]{
  background:var(--brand-soft);color:var(--brand);text-decoration:none;
}
.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1);}

.header-tools{display:flex;align-items:center;gap:8px;}

.search-box{
  display:flex;align-items:center;
  border:1px solid var(--line);border-radius:11px;padding:4px 8px;
  background:var(--bg-2);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.search-box:focus-within{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(200,16,46,.12);
  background:var(--bg);
}
.search-box input{
  border:0;background:transparent;color:var(--ink);outline:none;
  width:120px;font-size:14px;padding:4px;font-family:inherit;
}
.search-box input::placeholder{color:var(--ink-3);}
.search-box button{
  border:0;background:transparent;cursor:pointer;color:var(--brand);
  font-size:14px;padding:2px 4px;font-family:inherit;border-radius:6px;
  transition:background .25s var(--ease);
}
.search-box button:hover{background:var(--brand-soft);}

.icon-btn{
  border:1px solid var(--line);background:var(--bg-2);color:var(--ink-2);
  width:38px;height:38px;border-radius:11px;cursor:pointer;font-size:16px;
  display:flex;align-items:center;justify-content:center;
  transition:color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease),background .25s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-2px);background:var(--brand-soft);}

.menu-toggle{display:none;}

/* ============ Hero ============ */
.hero{
  position:relative;
  background:
    radial-gradient(1100px 520px at 8% -8%,rgba(200,16,46,.16),transparent 62%),
    radial-gradient(900px 480px at 96% 4%,rgba(255,77,109,.14),transparent 60%),
    linear-gradient(180deg,var(--bg-2),var(--bg));
  border-bottom:1px solid var(--line);
  padding:44px 0 40px;
  overflow:hidden;
  transition:background .35s var(--ease);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(200,16,46,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(200,16,46,.05) 1px,transparent 1px);
  background-size:52px 52px;
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000,transparent 78%);
  mask-image:radial-gradient(circle at 50% 30%,#000,transparent 78%);
  opacity:.7;
}

.hero-grid{
  position:relative;
  display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;
}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-soft);color:var(--brand);
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  margin-bottom:16px;border:1px solid rgba(200,16,46,.16);
  box-shadow:0 4px 14px rgba(200,16,46,.08);
}
.eyebrow::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 0 0 4px rgba(200,16,46,.14);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 3px rgba(200,16,46,.16);}
  50%{box-shadow:0 0 0 7px rgba(200,16,46,.05);}
}

.hero h1 span{
  background:linear-gradient(100deg,var(--brand),var(--brand-2) 70%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}

.hero-lead{font-size:17px;color:var(--ink-2);max-width:56ch;}

.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:11px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;font-family:inherit;
  position:relative;overflow:hidden;
  transition:transform .25s var(--ease),box-shadow .3s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn:active{transform:translateY(1px) scale(.99);}

.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#fff;
  box-shadow:0 10px 24px rgba(200,16,46,.26);
}
.btn-primary::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);
  transform:translateX(-120%);transition:transform .6s var(--ease);
}
.btn-primary:hover{
  color:#fff;text-decoration:none;transform:translateY(-2px);
  box-shadow:0 16px 32px rgba(200,16,46,.36);
}
.btn-primary:hover::after{transform:translateX(120%);}

.btn-ghost{
  background:var(--bg);color:var(--ink);border-color:var(--line);
}
.btn-ghost:hover{
  border-color:var(--brand);color:var(--brand);text-decoration:none;
  transform:translateY(-2px);box-shadow:0 10px 22px rgba(200,16,46,.12);
}

.hero-media{
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border:1px solid var(--glass-line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-lg);
  padding:14px;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
}
.hero-media:hover{transform:translateY(-4px);}

.carousel{
  position:relative;overflow:hidden;border-radius:12px;
  aspect-ratio:16/10;background:var(--bg-2);
}
.slide{
  position:absolute;inset:0;opacity:0;
  transition:opacity .6s var(--ease),transform .6s var(--ease);
  transform:scale(1.02);
  display:flex;align-items:center;justify-content:center;
}
.slide.active{opacity:1;transform:scale(1);}
.slide svg{width:100%;height:100%;}

.carousel-dots{display:flex;gap:8px;justify-content:center;margin-top:12px;}
.carousel-dots button{
  width:9px;height:9px;border-radius:50%;border:0;
  background:var(--line);cursor:pointer;padding:0;
  transition:width .3s var(--ease),background .3s var(--ease);
}
.carousel-dots button:hover{background:var(--ink-3);}
.carousel-dots button.active{
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  width:24px;border-radius:999px;
}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:34px;}
.stat{
  background:var(--glass);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--glass-line);
  border-radius:13px;padding:16px 18px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.stat:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow);
  border-color:rgba(200,16,46,.28);
}
.stat-num{
  font-size:26px;font-weight:800;line-height:1.2;
  background:linear-gradient(100deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.stat-label{font-size:13px;color:var(--ink-3);}

/* ============ Breadcrumb ============ */
.breadcrumb{font-size:13px;color:var(--ink-3);padding:14px 0;}
.breadcrumb ol{list-style:none;display:flex;gap:8px;padding:0;margin:0;flex-wrap:wrap;}
.breadcrumb li{display:flex;align-items:center;margin:0;}
.breadcrumb li::after{content:"/";margin-left:8px;color:var(--ink-3);opacity:.6;}
.breadcrumb li:last-child::after{content:"";}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand);}

/* ============ Anchor nav ============ */
.anchor-nav{
  background:var(--glass);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--line);
  border-radius:13px;padding:14px 18px;margin:26px 0 0;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.anchor-nav:hover{border-color:rgba(200,16,46,.24);box-shadow:var(--shadow);}
.anchor-nav ul{list-style:none;display:flex;flex-wrap:wrap;gap:6px 18px;padding:0;margin:0;}
.anchor-nav li{margin:0;}
.anchor-nav a{
  font-size:14px;color:var(--ink-2);position:relative;padding:2px 0;
  transition:color .25s var(--ease);
}
.anchor-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.anchor-nav a:hover{color:var(--brand);text-decoration:none;}
.anchor-nav a:hover::after{transform:scaleX(1);}

/* ============ Sections ============ */
section{padding:56px 0;border-bottom:1px solid var(--line);position:relative;}
section:last-of-type{border-bottom:0;}

.section-head{max-width:780px;margin-bottom:30px;}
.section-head .kicker{
  display:inline-block;
  color:var(--brand);font-weight:700;font-size:14px;letter-spacing:.06em;
  padding:3px 12px;border-radius:999px;
  background:var(--brand-soft);border:1px solid rgba(200,16,46,.14);
}
.section-head h2{margin-top:12px;}
.section-head p{font-size:16px;}

.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}

/* ============ Card ============ */
.card{
  position:relative;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  overflow:hidden;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transform:scaleX(0);transform-origin:left;
  transition:transform .4s var(--ease);
}
.card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(200,16,46,.22);
}
.card:hover::before{transform:scaleX(1);}
.card h3{margin-bottom:8px;}
.card p{font-size:15px;margin-bottom:0;}

.card-icon{
  width:44px;height:44px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand-soft),rgba(255,77,109,.12));
  display:flex;align-items:center;justify-content:center;
  margin-bottom:14px;
  transition:transform .35s var(--ease);
}
.card:hover .card-icon{transform:rotate(-6deg) scale(1.06);}
.card-icon svg{width:24px;height:24px;}

/* ============ Timeline ============ */
.timeline{list-style:none;padding:0;margin:0;position:relative;}
.timeline::before{
  content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(255,77,109,.15));
  border-radius:2px;
}
.timeline li{
  position:relative;padding-left:38px;margin-bottom:22px;
  transition:transform .3s var(--ease);
}
.timeline li:hover{transform:translateX(4px);}
.timeline li::before{
  content:"";position:absolute;left:2px;top:8px;width:16px;height:16px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  border:3px solid var(--bg);
  box-shadow:0 0 0 1px var(--line),0 4px 10px rgba(200,16,46,.3);
  transition:transform .3s var(--ease);
}
.timeline li:hover::before{transform:scale(1.18);}
.timeline .year{font-weight:800;color:var(--brand);margin-right:6px;}

/* ============ Article cards ============ */
.article-card{
  display:flex;flex-direction:column;
  background:var(--bg);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.article-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(200,16,46,.22);
}
.article-card .thumb{
  aspect-ratio:16/9;background:var(--bg-2);overflow:hidden;
}
.article-card .thumb svg{
  width:100%;height:100%;
  transition:transform .5s var(--ease);
}
.article-card:hover .thumb svg{transform:scale(1.06);}
.article-card .body{
  padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;
}
.article-card .meta{
  font-size:12px;color:var(--ink-3);display:flex;gap:12px;
  margin-bottom:8px;flex-wrap:wrap;
}
.article-card .meta span{
  padding:1px 8px;border-radius:999px;background:var(--brand-soft);color:var(--brand);
}
.article-card h3{font-size:17px;margin-bottom:8px;transition:color .25s var(--ease);}
.article-card:hover h3{color:var(--brand);}
.article-card p{font-size:14px;flex:1;}
.read-more{
  font-size:14px;font-weight:600;margin-top:10px;
  display:inline-flex;align-items:center;gap:6px;
}
.read-more::after{content:"→";transition:transform .3s var(--ease);}
.read-more:hover{text-decoration:none;}
.read-more:hover::after{transform:translateX(4px);}

/* ============ FAQ ============ */
.faq-item{
  border:1px solid var(--line);border-radius:13px;margin-bottom:12px;
  background:var(--bg);overflow:hidden;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.faq-item:hover{border-color:rgba(200,16,46,.24);box-shadow:var(--shadow);}
.faq-item.open{border-color:rgba(200,16,46,.3);box-shadow:var(--shadow);}
.faq-q{
  width:100%;text-align:left;background:transparent;border:0;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;display:flex;justify-content:space-between;gap:16px;
  align-items:center;font-family:inherit;
  transition:color .25s var(--ease),background .25s var(--ease);
}
.faq-q:hover{color:var(--brand);background:var(--brand-soft);}
.faq-q .plus{
  color:var(--brand);font-weight:800;font-size:20px;line-height:1;
  transition:transform .35s var(--ease);
  flex:none;
}
.faq-item.open .faq-q .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s var(--ease);}
.faq-a-inner{padding:0 20px 18px;color:var(--ink-2);font-size:15px;}

/* ============ HowTo ============ */
.howto-step{
  display:grid;grid-template-columns:52px 1fr;gap:16px;
  padding:18px 0;border-bottom:1px dashed var(--line);
  transition:transform .3s var(--ease);
}
.howto-step:hover{transform:translateX(4px);}
.howto-step:last-child{border-bottom:0;}
.step-num{
  width:44px;height:44px;border-radius:13px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:18px;
  box-shadow:0 8px 18px rgba(200,16,46,.28);
  transition:transform .35s var(--ease);
}
.howto-step:hover .step-num{transform:rotate(-6deg) scale(1.06);}
.howto-step h4{margin-bottom:4px;}
.howto-step p{margin-bottom:0;font-size:15px;}

/* ============ Table ============ */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:13px;
  -webkit-overflow-scrolling:touch;
}
table{width:100%;border-collapse:collapse;font-size:15px;min-width:560px;}
th,td{
  padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);
  color:var(--ink-2);transition:background .25s var(--ease);
}
th{
  background:var(--bg-2);color:var(--ink);font-weight:700;
  position:sticky;top:0;
}
tbody tr:hover td{background:var(--brand-soft);}
tr:last-child td{border-bottom:0;}

/* ============ Contact ============ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;}
.contact-list{list-style:none;padding:0;margin:0;}
.contact-list li{
  display:flex;gap:12px;padding:12px 0;
  border-bottom:1px dashed var(--line);font-size:15px;
  transition:padding-left .25s var(--ease);
}
.contact-list li:hover{padding-left:6px;}
.contact-list li:last-child{border-bottom:0;}
.contact-list strong{min-width:80px;color:var(--ink);flex:none;}

.form-row{display:flex;flex-direction:column;gap:6px;margin-bottom:14px;}
.form-row label{font-size:14px;font-weight:600;color:var(--ink);}
.form-row input,.form-row textarea,.form-row select{
  padding:11px 13px;border:1px solid var(--line);border-radius:11px;
  background:var(--bg-2);color:var(--ink);font-size:15px;
  font-family:inherit;outline:none;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.form-row input:hover,.form-row textarea:hover,.form-row select:hover{
  border-color:var(--ink-3);
}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{
  border-color:var(--brand);background:var(--bg);
  box-shadow:0 0 0 3px rgba(200,16,46,.12);
}
.form-row textarea{resize:vertical;min-height:100px;}

/* ============ Footer ============ */
.site-footer{
  background:var(--bg-2);border-top:1px solid var(--line);
  padding:48px 0 24px;
  position:relative;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:-120px;right:-80px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(200,16,46,.1),transparent 70%);
  pointer-events:none;
}
.footer-grid{
  position:relative;
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px;
}
.footer-grid h4{font-size:15px;margin-bottom:14px;color:var(--ink);}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:8px;}
.footer-links a{
  color:var(--ink-2);font-size:14px;display:inline-block;
  transition:color .25s var(--ease),transform .25s var(--ease);
}
.footer-links a:hover{color:var(--brand);transform:translateX(3px);text-decoration:none;}
.footer-bottom{
  position:relative;
  border-top:1px solid var(--line);margin-top:34px;padding-top:20px;
  font-size:13px;color:var(--ink-3);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}

/* ============ Back to top ============ */
.back-top{
  position:fixed;right:22px;bottom:22px;
  width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);
  background:var(--glass);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  color:var(--brand);font-size:18px;cursor:pointer;
  box-shadow:var(--shadow);
  display:none;align-items:center;justify-content:center;z-index:90;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
}
.back-top.show{display:flex;}
.back-top:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
  background:var(--brand);color:#fff;
}

/* ============ Reveal ============ */
.reveal{
  opacity:0;transform:translateY(22px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
  will-change:opacity,transform;
}
.reveal.visible{opacity:1;transform:none;}

/* ============ Focus ============ */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}

/* ============ Responsive ============ */
@media (max-width:1024px){
  .hero-grid{gap:28px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
}

@media (max-width:960px){
  .hero-grid,.grid-2,.contact-grid,.footer-grid{grid-template-columns:1fr;}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
  .stats{grid-template-columns:repeat(2,1fr);}

  .nav{
    display:none;position:absolute;top:68px;left:0;right:0;
    background:var(--glass);
    -webkit-backdrop-filter:blur(18px) saturate(180%);
    backdrop-filter:blur(18px) saturate(180%);
    border-bottom:1px solid var(--line);
    flex-direction:column;padding:12px 20px;gap:4px;
    box-shadow:var(--shadow);
    animation:slideDown .3s var(--ease);
  }
  @keyframes slideDown{
    from{opacity:0;transform:translateY(-8px);}
    to{opacity:1;transform:none;}
  }
  .nav.open{display:flex;}
  .nav a{padding:10px 12px;}
  .nav a::after{display:none;}

  .menu-toggle{display:flex;}
  .search-box input{width:90px;}

  .hero-media{max-width:560px;margin:0 auto;width:100%;}
}

@media (max-width:600px){
  body{font-size:15px;}
  .grid-3,.grid-4{grid-template-columns:1fr;}
  .stats{grid-template-columns:repeat(2,1fr);gap:12px;}
  .header-tools .search-box{display:none;}
  .hero{padding:28px 0 24px;}
  section{padding:40px 0;}
  .header-inner{height:62px;gap:10px;}
  .brand{font-size:16px;}
  .brand-mark{width:30px;height:30px;}
  .nav{top:62px;}
  .hero-actions .btn{flex:1;min-width:140px;}
  .stat{padding:13px 14px;}
  .stat-num{font-size:22px;}
  .card{padding:18px;}
  .article-card .body{padding:16px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .back-top{right:14px;bottom:14px;width:42px;height:42px;}
}

@media (max-width:380px){
  .stats{grid-template-columns:1fr;}
  .brand span{display:none;}
}

/* ============ Reduced motion ============ */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ============ Print ============ */
@media print{
  .site-header,.back-top,.hero-media,.carousel-dots,.anchor-nav,.site-footer .footer-links,.hero-actions,.search-box{display:none !important;}
  body{background:#fff;color:#000;}
  .card,.article-card{box-shadow:none;border:1px solid #ccc;}
  a{color:#000;text-decoration:underline;}
}