:root{
  --brand:#ff6b35;
  --brand-dark:#e0551f;
  --brand-light:#fff2ec;
  --brand-2:#5b6cff;
  --brand-3:#0ea5a4;
  --ink:#1f2329;
  --ink-2:#4a5058;
  --ink-3:#7a828c;
  --line:#e8ebef;
  --bg:#ffffff;
  --bg-2:#f7f8fa;
  --bg-3:#f0f2f5;
  --glass:rgba(255,255,255,.72);
  --glass-border:rgba(255,255,255,.6);
  --radius:14px;
  --radius-lg:20px;
  --shadow:0 6px 24px rgba(31,35,41,.08);
  --shadow-lg:0 16px 48px rgba(31,35,41,.14);
  --shadow-brand:0 10px 30px rgba(255,107,53,.28);
  --max:1200px;
  --header-h:68px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
html[data-theme="dark"]{
  --brand:#ff8558;
  --brand-dark:#ff6b35;
  --brand-light:#2a1d16;
  --brand-2:#7c8bff;
  --brand-3:#2dd4bf;
  --ink:#e8eaed;
  --ink-2:#b8bec6;
  --ink-3:#8b939d;
  --line:#2a2f36;
  --bg:#14171b;
  --bg-2:#1a1e23;
  --bg-3:#20252b;
  --glass:rgba(26,30,35,.72);
  --glass-border:rgba(255,255,255,.08);
  --shadow:0 6px 24px rgba(0,0,0,.35);
  --shadow-lg:0 16px 48px rgba(0,0,0,.5);
  --shadow-brand:0 10px 30px rgba(255,107,53,.35);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px);-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
  transition:background-color .35s ease,color .35s ease;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;-webkit-tap-highlight-color:transparent}
input,select,textarea{font-family:inherit}
::selection{background:rgba(255,107,53,.22);color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}

.container{max-width:var(--max);margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ============ Skip link ============ */
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:9999;
  background:var(--brand);color:#fff;padding:10px 18px;
  border-radius:0 0 10px 0;font-weight:600;
  transition:left .2s;
}
.skip-link:focus{left:0}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:var(--glass);
  backdrop-filter:saturate(180%) blur(16px);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease),background-color .3s ease;
}
.site-header.scrolled{box-shadow:var(--shadow)}
.header-inner{display:flex;align-items:center;gap:18px;height:var(--header-h)}
.logo{
  display:flex;align-items:center;gap:10px;
  font-weight:800;font-size:19px;letter-spacing:.5px;
  flex-shrink:0;transition:transform .25s var(--ease);
}
.logo:hover{transform:translateY(-1px)}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand),#ff9a6b);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:800;font-size:18px;
  box-shadow:0 4px 12px rgba(255,107,53,.35);
  transition:transform .35s var(--ease),box-shadow .3s;
}
.logo:hover .logo-mark{transform:rotate(-6deg) scale(1.05);box-shadow:0 6px 18px rgba(255,107,53,.5)}
.logo-text small{display:block;font-size:10px;font-weight:500;color:var(--ink-3);letter-spacing:1px;line-height:1}
.main-nav{display:flex;gap:4px;margin-left:8px;flex:1;overflow:hidden}
.main-nav a{
  padding:8px 13px;border-radius:9px;
  font-size:14.5px;color:var(--ink-2);font-weight:500;
  transition:all .2s var(--ease);white-space:nowrap;position:relative;
}
.main-nav a:hover,.main-nav a.active{color:var(--brand);background:var(--brand-light)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-2);transition:all .22s var(--ease);
  border:1px solid transparent;
}
.icon-btn:hover{background:var(--bg-3);color:var(--brand);transform:translateY(-1px)}
.icon-btn:active{transform:translateY(0) scale(.96)}
.icon-btn svg{width:20px;height:20px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:10px;
  font-size:14.5px;font-weight:600;
  transition:all .22s var(--ease);white-space:nowrap;
  position:relative;overflow:hidden;
}
.btn svg{transition:transform .22s var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),#ff8a5c);
  color:#fff;box-shadow:0 4px 14px rgba(255,107,53,.3);
}
.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{transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,107,53,.45)}
.btn-primary:hover::after{transform:translateX(120%)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{border:1px solid var(--line);color:var(--ink-2);background:var(--bg)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow)}
.menu-toggle{display:none}

/* ============ Search overlay ============ */
.search-panel{
  position:fixed;inset:0;z-index:2000;
  background:rgba(15,18,22,.55);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  display:flex;align-items:flex-start;justify-content:center;
  padding:14vh 20px 20px;
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s;
}
.search-panel.open{opacity:1;visibility:visible}
.search-box{
  width:min(620px,100%);
  background:var(--glass);
  backdrop-filter:saturate(180%) blur(24px);
  -webkit-backdrop-filter:saturate(180%) blur(24px);
  border:1px solid var(--glass-border);
  border-radius:18px;padding:22px;
  box-shadow:var(--shadow-lg);
  transform:translateY(-16px) scale(.98);
  transition:transform .32s var(--ease);
}
.search-panel.open .search-box{transform:translateY(0) scale(1)}
.search-box form{display:flex;gap:10px}
.search-box input{
  flex:1;padding:13px 16px;border-radius:10px;
  border:1.5px solid var(--line);background:var(--bg-2);
  color:var(--ink);font-size:15px;outline:none;
  transition:border-color .2s,background-color .2s;
}
.search-box input:focus{border-color:var(--brand);background:var(--bg)}
.search-hint{margin-top:14px;font-size:13px;color:var(--ink-3);font-weight:600}
.search-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.search-tags span{
  padding:5px 12px;border-radius:20px;background:var(--bg-3);
  font-size:13px;color:var(--ink-2);cursor:pointer;
  transition:all .2s var(--ease);
}
.search-tags span:hover{background:var(--brand-light);color:var(--brand);transform:translateY(-2px)}

/* ============ Mobile nav ============ */
.mobile-nav{
  position:fixed;top:var(--header-h);left:0;right:0;bottom:0;z-index:999;
  background:var(--bg);padding:16px 20px 40px;overflow-y:auto;
  transform:translateX(100%);transition:transform .34s var(--ease);
  border-top:1px solid var(--line);
}
.mobile-nav.open{transform:translateX(0)}
.mobile-nav a{
  display:block;padding:14px 12px;border-radius:10px;
  font-size:16px;font-weight:500;color:var(--ink-2);
  border-bottom:1px solid var(--line);
  transition:all .2s var(--ease);
}
.mobile-nav a:hover,.mobile-nav a:focus-visible{background:var(--brand-light);color:var(--brand);padding-left:18px}

/* ============ Breadcrumb ============ */
.breadcrumb{padding:16px 0;border-bottom:1px solid var(--line);background:var(--bg-2);transition:background-color .35s ease}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li:not(:last-child)::after{content:"/";color:var(--line)}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb [aria-current]{color:var(--ink-2);font-weight:600}

/* ============ Anchor nav ============ */
.anchor-nav{
  position:sticky;top:var(--header-h);z-index:800;
  background:var(--glass);
  backdrop-filter:saturate(180%) blur(16px);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid var(--line);
  overflow-x:auto;scrollbar-width:none;
  transition:background-color .35s ease;
}
.anchor-nav::-webkit-scrollbar{display:none}
.anchor-nav ul{display:flex;gap:4px;padding:10px 0;white-space:nowrap}
.anchor-nav a{
  display:block;padding:7px 15px;border-radius:8px;
  font-size:13.5px;font-weight:500;color:var(--ink-3);
  transition:all .2s var(--ease);
}
.anchor-nav a:hover,.anchor-nav a.active{background:var(--brand-light);color:var(--brand)}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,var(--brand-light) 0%,var(--bg) 55%);
  padding:64px 0 72px;
  transition:background .35s ease;
}
.hero::before{
  content:"";position:absolute;top:-180px;right:-120px;
  width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,53,.16),transparent 70%);
  pointer-events:none;
  animation:floatBlob 14s ease-in-out infinite;
}
.hero::after{
  content:"";position:absolute;bottom:-220px;left:-140px;
  width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(91,108,255,.12),transparent 70%);
  pointer-events:none;
  animation:floatBlob 18s ease-in-out infinite reverse;
}
@keyframes floatBlob{
  0%,100%{transform:translate(0,0) scale(1)}
  50%{transform:translate(-24px,28px) scale(1.08)}
}
.hero-grid{
  display:grid;grid-template-columns:1.1fr .9fr;
  gap:56px;align-items:center;position:relative;z-index:2;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:30px;
  background:var(--glass);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--brand);
  box-shadow:var(--shadow);margin-bottom:22px;
  transition:transform .25s var(--ease);
}
.hero-badge:hover{transform:translateY(-2px)}
.hero-badge .dot{
  width:8px;height:8px;border-radius:50%;background:#22c55e;
  box-shadow:0 0 0 4px rgba(34,197,94,.18);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 4px rgba(34,197,94,.18)}
  50%{box-shadow:0 0 0 8px rgba(34,197,94,.05)}
}
.hero h1{
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.22;font-weight:800;
  letter-spacing:-.5px;margin-bottom:20px;
}
.hero h1 .hl{color:var(--brand);position:relative;white-space:nowrap}
.hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:10px;
  background:rgba(255,107,53,.18);border-radius:4px;z-index:-1;
  transform:scaleX(0);transform-origin:left;
  animation:hlGrow .9s var(--ease) .35s forwards;
}
@keyframes hlGrow{to{transform:scaleX(1)}}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:560px;margin-bottom:16px}
.hero-lead strong{color:var(--ink);font-weight:700}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 34px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:520px}
.stat{
  padding:16px 18px;background:var(--glass);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius);box-shadow:var(--shadow);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.stat:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.stat-num{
  font-size:26px;font-weight:800;color:var(--brand);
  line-height:1.1;font-variant-numeric:tabular-nums;
}
.stat-num small{font-size:14px;font-weight:700;margin-left:2px}
.stat-label{font-size:12.5px;color:var(--ink-3);margin-top:4px}

/* ============ Banner carousel ============ */
.banner-carousel{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-lg);background:var(--bg-2);
  aspect-ratio:4/3.4;
  transition:transform .4s var(--ease);
}
.banner-carousel:hover{transform:translateY(-4px)}
.slide{
  position:absolute;inset:0;opacity:0;
  transition:opacity .7s ease;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:26px;color:#fff;
}
.slide.active{opacity:1}
.slide svg{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.slide-content{position:relative;z-index:2;transform:translateY(12px);opacity:0;transition:all .6s var(--ease) .15s}
.slide.active .slide-content{transform:translateY(0);opacity:1}
.slide-tag{
  display:inline-block;padding:4px 12px;border-radius:20px;
  background:rgba(255,255,255,.22);
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
  font-size:12px;font-weight:600;margin-bottom:10px;
}
.slide-title{font-size:20px;font-weight:800;margin-bottom:6px}
.slide-desc{font-size:13.5px;opacity:.9;line-height:1.6}
.carousel-dots{position:absolute;bottom:16px;right:20px;display:flex;gap:7px;z-index:3}
.carousel-dots button{
  width:8px;height:8px;border-radius:50%;
  background:rgba(255,255,255,.45);
  transition:all .3s var(--ease);padding:0;
}
.carousel-dots button:hover{background:rgba(255,255,255,.75)}
.carousel-dots button.active{width:22px;border-radius:5px;background:#fff}

/* ============ Section common ============ */
.section{padding:72px 0}
.section-alt{background:var(--bg-2);transition:background-color .35s ease}
.section-head{max-width:780px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand);
  letter-spacing:1.5px;text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--brand);border-radius:2px}
.section-head.center .eyebrow::before{display:none}
.section-head h2{
  font-size:clamp(24px,3vw,34px);font-weight:800;
  line-height:1.3;letter-spacing:-.3px;margin-bottom:14px;
}
.section-head p{font-size:16px;color:var(--ink-2);line-height:1.8}

/* ============ Brand intro ============ */
.brand-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.brand-text p{margin-bottom:16px;color:var(--ink-2);font-size:15.5px;line-height:1.85}
.brand-text p strong{color:var(--ink);font-weight:700}
.brand-text h3{font-size:19px;font-weight:700;margin:26px 0 10px;color:var(--ink)}
.brand-text h3:first-child{margin-top:0}
.brand-side{display:flex;flex-direction:column;gap:16px}
.info-card{
  padding:22px 24px;background:var(--bg);
  border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(255,107,53,.35)}
.info-card h4{
  font-size:15px;font-weight:700;margin-bottom:8px;
  display:flex;align-items:center;gap:8px;color:var(--ink);
}
.info-card h4 svg{width:18px;height:18px;color:var(--brand);flex-shrink:0}
.info-card p{font-size:14px;color:var(--ink-2);line-height:1.75}
.info-card ul li{
  font-size:14px;color:var(--ink-2);
  padding:5px 0 5px 20px;position:relative;
}
.info-card ul li::before{
  content:"";position:absolute;left:0;top:13px;
  width:6px;height:6px;border-radius:50%;background:var(--brand);
}

/* ============ Timeline ============ */
.timeline{position:relative;padding-left:28px;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(var(--brand),var(--line));
}
.tl-item{position:relative;padding:0 0 26px 0}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-28px;top:4px;
  width:16px;height:16px;border-radius:50%;
  background:var(--bg);border:3px solid var(--brand);
  box-shadow:0 0 0 4px var(--brand-light);
  transition:transform .3s var(--ease),box-shadow .3s;
}
.tl-item:hover::before{transform:scale(1.18);box-shadow:0 0 0 6px var(--brand-light)}
.tl-year{font-size:13px;font-weight:800;color:var(--brand);letter-spacing:.5px}
.tl-title{font-size:15.5px;font-weight:700;margin:3px 0 4px}
.tl-desc{font-size:14px;color:var(--ink-2);line-height:1.7}

/* ============ Products ============ */
.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}
.product-card{
  padding:28px;background:var(--bg);
  border:1px solid var(--line);border-radius:16px;
  transition:all .32s var(--ease);position:relative;overflow:hidden;
}
.product-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),#ffb08a);
  transform:scaleX(0);transform-origin:left;
  transition:transform .38s var(--ease);
}
.product-card::after{
  content:"";position:absolute;top:-60px;right:-60px;
  width:140px;height:140px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,53,.12),transparent 70%);
  opacity:0;transition:opacity .4s;
  pointer-events:none;
}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.product-card:hover::before{transform:scaleX(1)}
.product-card:hover::after{opacity:1}
.product-icon{
  width:52px;height:52px;border-radius:14px;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
  transition:transform .35s var(--ease),background-color .3s;
}
.product-card:hover .product-icon{transform:rotate(-8deg) scale(1.08)}
.product-icon svg{width:26px;height:26px}
.product-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.product-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8;margin-bottom:14px}
.product-card ul li{
  font-size:13.5px;color:var(--ink-3);
  padding:3px 0 3px 18px;position:relative;
}
.product-card ul li::before{
  content:"✓";position:absolute;left:0;color:var(--brand);
  font-weight:700;font-size:12px;
}

/* ============ Advantages ============ */
.adv-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.adv-item{
  padding:24px;border-radius:14px;background:var(--bg);
  border:1px solid var(--line);
  transition:all .3s var(--ease);position:relative;overflow:hidden;
}
.adv-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(var(--brand),#ffb08a);
  transform:scaleY(0);transform-origin:top;
  transition:transform .35s var(--ease);
}
.adv-item:hover{border-color:rgba(255,107,53,.4);box-shadow:var(--shadow);transform:translateY(-3px)}
.adv-item:hover::before{transform:scaleY(1)}
.adv-num{
  font-size:32px;font-weight:800;color:var(--brand);opacity:.25;
  line-height:1;margin-bottom:10px;font-variant-numeric:tabular-nums;
  transition:opacity .3s;
}
.adv-item:hover .adv-num{opacity:.6}
.adv-item h3{font-size:16px;font-weight:700;margin-bottom:8px}
.adv-item p{font-size:14px;color:var(--ink-2);line-height:1.75}

/* ============ Scenarios ============ */
.scene-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.scene-card{
  background:var(--bg);border:1px solid var(--line);
  border-radius:16px;overflow:hidden;
  transition:all .32s var(--ease);
}
.scene-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:transparent}
.scene-visual{height:150px;position:relative;overflow:hidden}
.scene-visual svg{width:100%;height:100%;transition:transform .5s var(--ease)}
.scene-card:hover .scene-visual svg{transform:scale(1.06)}
.scene-body{padding:22px 24px}
.scene-body h3{font-size:17px;font-weight:700;margin-bottom:8px}
.scene-body p{font-size:14px;color:var(--ink-2);line-height:1.8;margin-bottom:12px}
.scene-tags{display:flex;flex-wrap:wrap;gap:7px}
.scene-tags span{
  font-size:12px;padding:4px 10px;border-radius:20px;
  background:var(--bg-3);color:var(--ink-3);
  transition:all .2s var(--ease);
}
.scene-card:hover .scene-tags span{background:var(--brand-light);color:var(--brand)}

/* ============ Cases ============ */
.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.case-card{
  padding:26px;background:var(--bg);
  border:1px solid var(--line);border-radius:16px;
  position:relative;transition:all .3s var(--ease);
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(255,107,53,.3)}
.case-quote{
  font-size:15px;line-height:1.85;color:var(--ink-2);
  margin-bottom:18px;position:relative;padding-left:22px;
}
.case-quote::before{
  content:"“";position:absolute;left:0;top:-8px;
  font-size:40px;color:var(--brand);opacity:.35;
  font-family:Georgia,serif;line-height:1;
}
.case-meta{
  display:flex;align-items:center;gap:12px;
  padding-top:16px;border-top:1px solid var(--line);
}
.case-avatar{
  width:42px;height:42px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),#ffb08a);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:700;font-size:15px;flex-shrink:0;
  transition:transform .3s var(--ease);
}
.case-card:hover .case-avatar{transform:scale(1.08)}
.case-name{font-size:14px;font-weight:700}
.case-role{font-size:12.5px;color:var(--ink-3)}
.case-result{
  margin-top:14px;padding:12px 14px;
  background:var(--brand-light);border-radius:10px;
  font-size:13px;color:var(--brand-dark);font-weight:600;
}
html[data-theme="dark"] .case-result{color:var(--brand)}

/* ============ Articles ============ */
.article-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}
.article-card{
  background:var(--bg);border:1px solid var(--line);
  border-radius:16px;overflow:hidden;
  transition:all .32s var(--ease);
  display:flex;flex-direction:column;
}
.article-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:transparent}
.article-thumb{height:140px;position:relative;overflow:hidden}
.article-thumb svg{width:100%;height:100%;transition:transform .5s var(--ease)}
.article-card:hover .article-thumb svg{transform:scale(1.07)}
.article-cat{
  position:absolute;top:12px;left:12px;
  padding:4px 11px;border-radius:20px;
  background:rgba(255,255,255,.92);
  color:var(--brand-dark);font-size:11.5px;font-weight:700;z-index:2;
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
}
.article-body{padding:20px 22px 22px;flex:1;display:flex;flex-direction:column}
.article-meta{
  font-size:12.5px;color:var(--ink-3);margin-bottom:8px;
  display:flex;gap:12px;flex-wrap:wrap;
}
.article-body h3{font-size:16px;font-weight:700;line-height:1.5;margin-bottom:8px}
.article-body h3 a{transition:color .2s}
.article-body h3 a:hover{color:var(--brand)}
.article-body p{font-size:13.5px;color:var(--ink-2);line-height:1.75;margin-bottom:14px;flex:1}
.read-more{
  font-size:13.5px;font-weight:700;color:var(--brand);
  display:inline-flex;align-items:center;gap:5px;margin-top:auto;
}
.read-more svg{width:14px;height:14px;transition:transform .22s var(--ease)}
.article-card:hover .read-more svg{transform:translateX(4px)}

/* ============ FAQ ============ */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--bg);border:1px solid var(--line);
  border-radius:12px;overflow:hidden;
  transition:all .25s var(--ease);
}
.faq-item:hover{border-color:rgba(255,107,53,.35)}
.faq-item.open{border-color:var(--brand);box-shadow:var(--shadow)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:18px 22px;text-align:left;
  font-size:15.5px;font-weight:600;color:var(--ink);
  transition:color .2s;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  width:26px;height:26px;border-radius:50%;
  background:var(--bg-3);
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;transition:all .3s var(--ease);
}
.faq-icon svg{width:14px;height:14px;transition:transform .3s var(--ease)}
.faq-item.open .faq-icon{background:var(--brand);color:#fff}
.faq-item.open .faq-icon svg{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s var(--ease)}
.faq-a-inner{padding:0 22px 20px;font-size:14.5px;color:var(--ink-2);line-height:1.85}

/* ============ HowTo ============ */
.howto-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.howto-intro h3{font-size:20px;font-weight:700;margin-bottom:12px}
.howto-intro p{font-size:15px;color:var(--ink-2);line-height:1.85;margin-bottom:16px}
.howto-intro .info-card{margin-bottom:14px}
.steps{position:relative}
.step{display:flex;gap:18px;padding-bottom:26px;position:relative}
.step:last-child{padding-bottom:0}
.step::before{
  content:"";position:absolute;left:19px;top:44px;bottom:0;
  width:2px;background:var(--line);
}
.step:last-child::before{display:none}
.step-num{
  width:40px;height:40px;border-radius:50%;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;flex-shrink:0;
  border:2px solid var(--brand);z-index:1;
  transition:all .3s var(--ease);
}
.step:hover .step-num{background:var(--brand);color:#fff;transform:scale(1.08);box-shadow:var(--shadow-brand)}
.step-body h4{font-size:15.5px;font-weight:700;margin-bottom:5px;padding-top:6px}
.step-body p{font-size:14px;color:var(--ink-2);line-height:1.75}

/* ============ Contact ============ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.contact-list{display:flex;flex-direction:column;gap:14px}
.contact-item{
  display:flex;gap:16px;padding:20px 22px;
  background:var(--bg);border:1px solid var(--line);
  border-radius:14px;transition:all .25s var(--ease);
}
.contact-item:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateX(4px)}
.contact-icon{
  width:44px;height:44px;border-radius:12px;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  transition:transform .3s var(--ease);
}
.contact-item:hover .contact-icon{transform:rotate(-8deg) scale(1.06)}
.contact-icon svg{width:20px;height:20px}
.contact-item h4{font-size:14px;font-weight:700;margin-bottom:3px}
.contact-item p{font-size:14px;color:var(--ink-2);line-height:1.7}
.contact-item a{color:var(--brand);font-weight:600;transition:opacity .2s}
.contact-item a:hover{opacity:.75}
.contact-form{
  background:var(--bg);border:1px solid var(--line);
  border-radius:16px;padding:28px;box-shadow:var(--shadow);
  transition:box-shadow .3s;
}
.contact-form:hover{box-shadow:var(--shadow-lg)}
.contact-form h3{font-size:18px;font-weight:700;margin-bottom:6px}
.contact-form>p{font-size:13.5px;color:var(--ink-3);margin-bottom:20px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.form-field{display:flex;flex-direction:column;gap:6px}
.form-field label{font-size:13px;font-weight:600;color:var(--ink-2)}
.form-field input,.form-field select,.form-field textarea{
  padding:11px 14px;border-radius:9px;
  border:1.5px solid var(--line);background:var(--bg-2);
  color:var(--ink);font-size:14px;outline:none;
  transition:border-color .2s,background-color .2s,box-shadow .2s;
  width:100%;
}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  border-color:var(--brand);background:var(--bg);
  box-shadow:0 0 0 3px rgba(255,107,53,.14);
}
.form-field textarea{resize:vertical;min-height:100px}
.form-field.full{grid-column:1/-1}
.form-note{font-size:12px;color:var(--ink-3);margin-top:12px;line-height:1.6}

/* ============ Author box ============ */
.author-box{
  display:flex;gap:18px;padding:24px;
  background:var(--bg-2);border-radius:14px;
  border:1px solid var(--line);margin-top:40px;align-items:flex-start;
  transition:box-shadow .3s;
}
.author-box:hover{box-shadow:var(--shadow)}
.author-avatar{
  width:56px;height:56px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),#ffb08a);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:800;font-size:20px;flex-shrink:0;
}
.author-info h4{font-size:15px;font-weight:700;margin-bottom:4px}
.author-info p{font-size:13.5px;color:var(--ink-2);line-height:1.75}
.author-meta{
  font-size:12.5px;color:var(--ink-3);margin-top:8px;
  display:flex;flex-wrap:wrap;gap:14px;
}

/* ============ Footer ============ */
.site-footer{
  background:#12151a;color:#a8b0ba;
  padding:56px 0 0;font-size:14px;
  transition:background-color .35s ease;
}
html[data-theme="dark"] .site-footer{background:#0c0e11}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px}
.footer-brand .logo{color:#fff;margin-bottom:14px}
.footer-brand p{font-size:13.5px;line-height:1.8;color:#8b939d;max-width:320px;margin-bottom:16px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:9px;
  background:rgba(255,255,255,.06);
  display:flex;align-items:center;justify-content:center;
  color:#a8b0ba;transition:all .22s var(--ease);
}
.footer-social a:hover{background:var(--brand);color:#fff;transform:translateY(-3px)}
.footer-social svg{width:17px;height:17px}
.footer-col h4{font-size:14.5px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:9px}
.footer-col ul a{font-size:13.5px;color:#8b939d;transition:color .2s,padding-left .2s}
.footer-col ul a:hover{color:var(--brand);padding-left:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;align-items:center;
  font-size:12.5px;color:#6b7480;
}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom-links a{transition:color .2s}
.footer-bottom-links a:hover{color:var(--brand)}
.footer-declare{
  padding:18px 0 26px;border-top:1px solid rgba(255,255,255,.08);
  font-size:12px;color:#5f6873;line-height:1.8;
}

/* ============ Back to top ============ */
.back-top{
  position:fixed;right:22px;bottom:26px;
  width:46px;height:46px;border-radius:50%;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 20px rgba(255,107,53,.4);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:all .32s var(--ease);z-index:900;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(255,107,53,.55)}
.back-top:active{transform:translateY(-1px) scale(.95)}
.back-top svg{width:20px;height:20px}

/* ============ Reveal animation ============ */
.reveal{
  opacity:0;transform:translateY(26px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
  will-change:opacity,transform;
}
.reveal.in{opacity:1;transform:none}
.reveal:nth-child(2){transition-delay:.06s}
.reveal:nth-child(3){transition-delay:.12s}
.reveal:nth-child(4){transition-delay:.18s}
.reveal:nth-child(5){transition-delay:.24s}
.reveal:nth-child(6){transition-delay:.3s}

/* ============ Responsive ============ */
@media(max-width:1080px){
  .main-nav a{padding:8px 10px;font-size:14px}
}
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .banner-carousel{max-width:560px;margin:0 auto;aspect-ratio:16/11}
  .brand-grid{grid-template-columns:1fr;gap:32px}
  .howto-wrap{grid-template-columns:1fr;gap:32px}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .main-nav{display:none}
  .menu-toggle{display:flex}
}
@media(max-width:768px){
  :root{--header-h:60px}
  body{font-size:15px}
  .container{padding:0 16px}
  .section{padding:52px 0}
  .hero{padding:44px 0 56px}
  .hero-grid{gap:32px}
  .hero h1{letter-spacing:-.3px}
  .hero-lead{font-size:15.5px}
  .hero-stats{grid-template-columns:1fr 1fr;gap:12px}
  .stat:last-child{grid-column:1/-1}
  .stat-num{font-size:23px}
  .header-actions .btn-primary{display:none}
  .header-inner{gap:10px}
  .logo{font-size:17px}
  .logo-mark{width:34px;height:34px;font-size:16px}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .article-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .back-top{right:14px;bottom:16px;width:42px;height:42px}
  .hero-actions .btn{flex:1}
  .section-head{margin-bottom:32px}
  .section-head p{font-size:15px}
  .author-box{flex-direction:column;gap:12px}
  .search-panel{padding-top:10vh}
  .search-box form{flex-direction:column}
  .search-box form .btn{width:100%}
  .case-quote{font-size:14px}
  .contact-form{padding:22px}
}
@media(max-width:480px){
  .hero h1{font-size:26px}
  .hero-badge{font-size:12px;padding:6px 12px}
  .banner-carousel{aspect-ratio:4/4.2}
  .slide{padding:20px}
  .slide-title{font-size:17px}
  .slide-desc{font-size:12.5px}
  .product-card,.info-card,.case-card{padding:20px}
  .article-body{padding:18px}
  .footer-social a{width:34px;height:34px}
}

/* ============ Accessibility / motion ============ */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
    scroll-behavior:auto!important;
  }
  .reveal{opacity:1;transform:none}
  .hero h1 .hl::after{transform:scaleX(1)}
  .slide-content{opacity:1;transform:none}
}

/* ============ Print ============ */
@media print{
  .site-header,.anchor-nav,.search-panel,.mobile-nav,.back-top,
  .header-actions,.hero-actions,.footer-social,.breadcrumb{display:none!important}
  body{background:#fff;color:#000}
  .section{padding:20px 0}
  a[href]::after{content:" (" attr(href) ")";font-size:11px;color:#666}
  .reveal{opacity:1;transform:none}
}