:root{
  --brand:#2b6cb0;
  --brand-deep:#1a4a7a;
  --brand-light:#4a90d9;
  --accent:#7c5cff;
  --accent-2:#00b8d9;
  --bg:#f5f7fb;
  --bg-soft:#eef2f9;
  --surface:#ffffff;
  --surface-glass:rgba(255,255,255,.72);
  --surface-glass-strong:rgba(255,255,255,.88);
  --border:rgba(43,108,176,.14);
  --border-soft:rgba(43,108,176,.08);
  --text:#1a2332;
  --text-soft:#4a5568;
  --text-mute:#718096;
  --shadow-sm:0 2px 8px rgba(26,74,122,.06);
  --shadow-md:0 8px 28px rgba(26,74,122,.10);
  --shadow-lg:0 20px 50px rgba(26,74,122,.16);
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --radius-xl:32px;
  --header-h:72px;
  --grad-banner:linear-gradient(135deg,#2b6cb0 0%,#4a90d9 35%,#7c5cff 70%,#00b8d9 100%);
  --grad-btn:linear-gradient(135deg,#2b6cb0,#4a90d9);
  --grad-accent:linear-gradient(135deg,#7c5cff,#00b8d9);
  --ease:cubic-bezier(.22,.61,.36,1);
  --transition:.35s var(--ease);
}

html[data-theme="dark"]{
  --brand:#5b9be0;
  --brand-deep:#3a7cc4;
  --brand-light:#7db4ec;
  --accent:#9d85ff;
  --accent-2:#33d6f0;
  --bg:#0d1420;
  --bg-soft:#131c2b;
  --surface:#182334;
  --surface-glass:rgba(24,35,52,.72);
  --surface-glass-strong:rgba(24,35,52,.9);
  --border:rgba(125,180,236,.16);
  --border-soft:rgba(125,180,236,.08);
  --text:#e8eef7;
  --text-soft:#b8c4d6;
  --text-mute:#8494ab;
  --shadow-sm:0 2px 8px rgba(0,0,0,.3);
  --shadow-md:0 8px 28px rgba(0,0,0,.4);
  --shadow-lg:0 20px 50px rgba(0,0,0,.55);
  --grad-banner:linear-gradient(135deg,#1a3a5c 0%,#2b6cb0 35%,#5b4bb8 70%,#0a5a6b 100%);
  --grad-btn:linear-gradient(135deg,#3a7cc4,#5b9be0);
  --grad-accent:linear-gradient(135deg,#7c5cff,#00b8d9);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

html{
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 16px);
  -webkit-text-size-adjust:100%;
}

body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  background-image:
    radial-gradient(circle at 8% 4%,rgba(124,92,255,.07),transparent 42%),
    radial-gradient(circle at 92% 12%,rgba(0,184,217,.07),transparent 40%),
    radial-gradient(circle at 50% 100%,rgba(43,108,176,.06),transparent 50%);
  background-attachment:fixed;
  min-height:100vh;
  overflow-x:hidden;
  transition:background-color .4s ease,color .4s ease;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img,svg{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input{font-family:inherit}
::selection{background:rgba(124,92,255,.25);color:var(--text)}

:focus-visible{
  outline:3px solid var(--accent);
  outline-offset:3px;
  border-radius:4px;
}

.visually-hidden{
  position:absolute!important;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);
  white-space:nowrap;border:0;
}

.skip-link{
  position:fixed;
  top:-100px;left:16px;
  z-index:9999;
  padding:12px 24px;
  background:var(--brand);
  color:#fff;
  border-radius:0 0 var(--radius) var(--radius);
  font-weight:600;
  transition:top .3s var(--ease);
}
.skip-link:focus{top:0;color:#fff}

/* ============ HEADER ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  height:var(--header-h);
  background:var(--surface-glass);
  -webkit-backdrop-filter:blur(18px) saturate(180%);
  backdrop-filter:blur(18px) saturate(180%);
  border-bottom:1px solid var(--border-soft);
  transition:box-shadow var(--transition),background var(--transition),border-color var(--transition);
}
.site-header.scrolled{
  box-shadow:var(--shadow-md);
  background:var(--surface-glass-strong);
  border-bottom-color:var(--border);
}

.header-inner{
  max-width:1240px;
  height:100%;
  margin:0 auto;
  padding:0 24px;
  display:flex;
  align-items:center;
  gap:24px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  text-decoration:none;
}
.brand-logo{
  width:40px;height:40px;
  border-radius:12px;
  box-shadow:0 4px 14px rgba(43,108,176,.35);
  transition:transform var(--transition),box-shadow var(--transition);
}
.brand:hover .brand-logo{
  transform:rotate(-6deg) scale(1.06);
  box-shadow:0 6px 20px rgba(124,92,255,.45);
}
.brand-name{
  font-size:1.2rem;
  font-weight:800;
  letter-spacing:.02em;
  background:var(--grad-banner);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  white-space:nowrap;
}

.main-nav{flex:1;min-width:0}
.main-nav ul{
  display:flex;
  align-items:center;
  gap:2px;
  flex-wrap:nowrap;
  overflow-x:auto;
  scrollbar-width:none;
}
.main-nav ul::-webkit-scrollbar{display:none}
.main-nav a{
  display:block;
  padding:8px 12px;
  font-size:.9rem;
  font-weight:500;
  color:var(--text-soft);
  border-radius:var(--radius-sm);
  white-space:nowrap;
  position:relative;
  transition:color var(--transition),background var(--transition);
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--grad-accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--transition);
}
.main-nav a:hover{
  color:var(--brand);
  background:rgba(43,108,176,.07);
}
.main-nav a:hover::after{transform:scaleX(1)}

.header-tools{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}

.site-search{
  display:flex;
  align-items:center;
  background:var(--bg-soft);
  border:1px solid var(--border-soft);
  border-radius:999px;
  padding:4px 4px 4px 16px;
  transition:border-color var(--transition),box-shadow var(--transition),background var(--transition);
}
.site-search:focus-within{
  border-color:var(--brand-light);
  box-shadow:0 0 0 4px rgba(74,144,217,.15);
  background:var(--surface);
}
.site-search input{
  width:150px;
  border:none;
  background:transparent;
  color:var(--text);
  font-size:.85rem;
  outline:none;
  padding:4px 0;
}
.site-search input::placeholder{color:var(--text-mute)}
.site-search button{
  padding:6px 16px;
  font-size:.82rem;
  font-weight:600;
  color:#fff;
  background:var(--grad-btn);
  border-radius:999px;
  transition:filter var(--transition),transform var(--transition);
}
.site-search button:hover{filter:brightness(1.1);transform:translateY(-1px)}

.theme-toggle,
.menu-toggle{
  width:40px;height:40px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.1rem;
  border-radius:12px;
  background:var(--bg-soft);
  border:1px solid var(--border-soft);
  color:var(--text);
  transition:transform var(--transition),background var(--transition),box-shadow var(--transition);
}
.theme-toggle:hover,
.menu-toggle:hover{
  transform:translateY(-2px) rotate(8deg);
  background:rgba(124,92,255,.12);
  box-shadow:var(--shadow-sm);
}
.menu-toggle{display:none}

/* ============ HERO ============ */
.hero{
  position:relative;
  max-width:1240px;
  margin:28px auto 0;
  padding:64px 48px 48px;
  border-radius:var(--radius-xl);
  background:var(--grad-banner);
  background-size:200% 200%;
  animation:gradientShift 18s ease infinite;
  color:#fff;
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  isolation:isolate;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 85% 15%,rgba(255,255,255,.22),transparent 45%),
    radial-gradient(circle at 15% 90%,rgba(255,255,255,.14),transparent 40%);
  z-index:-1;
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  top:-120px;right:-80px;
  width:380px;height:380px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.16),transparent 70%);
  z-index:-1;
  animation:floatOrb 12s ease-in-out infinite;
}
@keyframes gradientShift{
  0%,100%{background-position:0% 50%}
  50%{background-position:100% 50%}
}
@keyframes floatOrb{
  0%,100%{transform:translate(0,0) scale(1)}
  50%{transform:translate(-30px,30px) scale(1.1)}
}

.hero-slides{position:relative;min-height:260px}
.hero-slide{
  display:none;
  animation:slideFade .7s var(--ease);
}
.hero-slide.active{display:block}
@keyframes slideFade{
  from{opacity:0;transform:translateY(18px)}
  to{opacity:1;transform:translateY(0)}
}

.hero h1,
.hero h2{
  font-size:clamp(1.7rem,3.6vw,2.9rem);
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.01em;
  margin-bottom:20px;
  text-shadow:0 2px 20px rgba(0,0,0,.18);
  max-width:900px;
}
.hero-lead,
.hero-slide p{
  font-size:clamp(.95rem,1.4vw,1.1rem);
  line-height:1.85;
  max-width:820px;
  color:rgba(255,255,255,.92);
  margin-bottom:16px;
  text-shadow:0 1px 8px rgba(0,0,0,.12);
}
.hero-cta{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}

.btn-primary,
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:13px 30px;
  font-size:.95rem;
  font-weight:700;
  border-radius:999px;
  transition:transform var(--transition),box-shadow var(--transition),background var(--transition),color var(--transition);
  will-change:transform;
}
.btn-primary{
  background:#fff;
  color:var(--brand-deep);
  box-shadow:0 8px 24px rgba(0,0,0,.2);
}
.btn-primary:hover{
  transform:translateY(-3px) scale(1.02);
  box-shadow:0 14px 34px rgba(0,0,0,.28);
  color:var(--brand-deep);
}
.btn-ghost{
  background:rgba(255,255,255,.14);
  color:#fff;
  border:1.5px solid rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.26);
  transform:translateY(-3px);
  color:#fff;
  box-shadow:0 10px 28px rgba(0,0,0,.2);
}

.hero-dots{
  display:flex;
  gap:10px;
  margin:32px 0 8px;
}
.hero-dots .dot{
  width:36px;height:6px;
  border-radius:999px;
  background:rgba(255,255,255,.35);
  transition:background var(--transition),width var(--transition),transform var(--transition);
}
.hero-dots .dot:hover{background:rgba(255,255,255,.6);transform:scaleY(1.4)}
.hero-dots .dot.active{
  width:56px;
  background:#fff;
  box-shadow:0 0 12px rgba(255,255,255,.6);
}

.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-top:40px;
  padding-top:32px;
  border-top:1px solid rgba(255,255,255,.2);
}
.stat{
  text-align:center;
  padding:14px 8px;
  border-radius:var(--radius);
  transition:background var(--transition),transform var(--transition);
}
.stat:hover{
  background:rgba(255,255,255,.12);
  transform:translateY(-3px);
}
.stat-num{
  display:block;
  font-size:clamp(1.4rem,2.6vw,2.1rem);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.2;
}
.stat-label{
  display:block;
  margin-top:6px;
  font-size:.8rem;
  color:rgba(255,255,255,.82);
  letter-spacing:.02em;
}

/* ============ BREADCRUMB ============ */
.breadcrumb{
  max-width:1240px;
  margin:24px auto 0;
  padding:0 24px;
}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:.85rem;
  color:var(--text-mute);
}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{
  content:"›";
  color:var(--text-mute);
  opacity:.6;
}
.breadcrumb a{color:var(--text-soft)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb [aria-current="page"]{color:var(--text);font-weight:600}

/* ============ SECTIONS ============ */
.section{
  max-width:1240px;
  margin:0 auto;
  padding:64px 24px;
  scroll-margin-top:calc(var(--header-h) + 20px);
}

.section > h2{
  position:relative;
  font-size:clamp(1.5rem,3vw,2.1rem);
  font-weight:800;
  line-height:1.3;
  letter-spacing:-.015em;
  margin-bottom:28px;
  padding-left:20px;
  color:var(--text);
}
.section > h2::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:6px;height:1.15em;
  border-radius:999px;
  background:var(--grad-accent);
  box-shadow:0 0 16px rgba(124,92,255,.4);
}

.section h3{
  font-size:clamp(1.15rem,2vw,1.4rem);
  font-weight:700;
  line-height:1.4;
  margin:36px 0 14px;
  color:var(--text);
  letter-spacing:-.01em;
}
.section h3:first-of-type{margin-top:8px}

.section h4{
  font-size:1.02rem;
  font-weight:700;
  margin:22px 0 10px;
  color:var(--brand);
}

.section p{
  margin-bottom:16px;
  color:var(--text-soft);
  line-height:1.85;
  max-width:920px;
}
.section p:last-child{margin-bottom:0}

.section strong{color:var(--text);font-weight:700}

.section ul:not([class]),
.section ol:not([class]){
  margin:0 0 18px;
  padding-left:0;
}
.section ul:not([class]) li,
.section ol:not([class]) li{
  position:relative;
  padding-left:26px;
  margin-bottom:10px;
  color:var(--text-soft);
  line-height:1.8;
}
.section ul:not([class]) li::before{
  content:"";
  position:absolute;
  left:6px;top:.7em;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--grad-accent);
  box-shadow:0 0 8px rgba(124,92,255,.4);
}

/* ============ CARDS / GLASS ============ */
#about,#products,#solutions,#applications,#cases,#news,#articles,#howto,#faq,#contact,#sitemap,#friends,#legal{
  position:relative;
}

.timeline{
  display:grid;
  gap:14px;
  margin:20px 0 28px;
  padding:0;
  list-style:none;
  counter-reset:tl;
}
.timeline li{
  position:relative;
  padding:18px 20px 18px 56px;
  background:var(--surface);
  border:1px solid var(--border-soft);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  color:var(--text-soft);
  line-height:1.8;
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
  counter-increment:tl;
}
.timeline li::before{
  content:counter(tl);
  position:absolute;
  left:16px;top:18px;
  width:28px;height:28px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:.85rem;
  font-weight:800;
  color:#fff;
  background:var(--grad-btn);
  border-radius:50%;
  box-shadow:0 4px 12px rgba(43,108,176,.3);
}
.timeline li::after{
  content:"";
  position:absolute;
  left:29px;top:50px;bottom:-14px;
  width:2px;
  background:var(--border);
}
.timeline li:last-child::after{display:none}
.timeline li:hover{
  transform:translateX(6px);
  box-shadow:var(--shadow-md);
  border-color:var(--brand-light);
}

.advantage-list{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:16px;
  margin:24px 0 8px;
  padding:0;
  list-style:none;
}
.advantage-list li{
  position:relative;
  padding:22px 22px 22px 52px;
  background:var(--surface-glass);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  color:var(--text-soft);
  line-height:1.75;
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.advantage-list li::before{
  content:"✓";
  position:absolute;
  left:18px;top:22px;
  width:24px;height:24px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:.75rem;
  font-weight:900;
  color:#fff;
  background:var(--grad-accent);
  border-radius:8px;
  box-shadow:0 4px 12px rgba(124,92,255,.3);
}
.advantage-list li:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-md);
  border-color:var(--brand-light);
}

/* ============ NEWS ============ */
.news-list{
  display:grid;
  gap:12px;
  padding:0;
  list-style:none;
}
.news-list li{
  position:relative;
  padding:18px 22px 18px 22px;
  background:var(--surface);
  border:1px solid var(--border-soft);
  border-left:4px solid var(--brand);
  border-radius:var(--radius-sm);
  color:var(--text-soft);
  line-height:1.75;
  transition:transform var(--transition),box-shadow var(--transition),border-left-color var(--transition),background var(--transition);
}
.news-list li:hover{
  transform:translateX(6px);
  box-shadow:var(--shadow-md);
  border-left-color:var(--accent);
  background:var(--surface-glass-strong);
}
.news-list time{
  display:inline-block;
  margin-right:12px;
  padding:2px 10px;
  font-size:.78rem;
  font-weight:700;
  color:var(--brand);
  background:rgba(43,108,176,.1);
  border-radius:999px;
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}

/* ============ ARTICLES ============ */
#articles > p{
  margin-bottom:28px;
}
.article-card{
  position:relative;
  padding:26px 28px;
  margin-bottom:20px;
  background:var(--surface);
  border:1px solid var(--border-soft);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.article-card::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:100%;height:3px;
  background:var(--grad-accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .5s var(--ease);
}
.article-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:var(--border);
}
.article-card:hover::before{transform:scaleX(1)}

.article-card h3{
  margin:0 0 8px;
  font-size:1.18rem;
  line-height:1.45;
}
.article-card h3 a{
  color:var(--text);
  background-image:linear-gradient(var(--accent),var(--accent));
  background-size:0% 2px;
  background-position:0 100%;
  background-repeat:no-repeat;
  transition:color var(--transition),background-size var(--transition);
}
.article-card h3 a:hover{
  color:var(--brand);
  background-size:100% 2px;
}
.article-card .meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:.82rem;
  color:var(--text-mute);
  margin-bottom:12px;
}
.article-card .meta time{
  padding:2px 10px;
  background:var(--bg-soft);
  border-radius:999px;
  font-weight:600;
  font-variant-numeric:tabular-nums;
}
.article-card p{
  color:var(--text-soft);
  margin-bottom:12px;
  line-height:1.85;
}
.article-card p:last-child{margin-bottom:0}
.article-card p:last-child a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:700;
  font-size:.9rem;
  color:var(--brand);
  padding:6px 0;
  transition:gap var(--transition),color var(--transition);
}
.article-card p:last-child a::after{
  content:"→";
  transition:transform var(--transition);
}
.article-card p:last-child a:hover{color:var(--accent);gap:10px}
.article-card p:last-child a:hover::after{transform:translateX(3px)}

/* ============ HOWTO ============ */
.howto-steps{
  counter-reset:step;
  display:grid;
  gap:14px;
  margin:20px 0 28px;
  padding:0;
  list-style:none;
}
.howto-steps li{
  position:relative;
  padding:20px 24px 20px 68px;
  background:var(--surface);
  border:1px solid var(--border-soft);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  color:var(--text-soft);
  line-height:1.8;
  counter-increment:step;
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.howto-steps li::before{
  content:counter(step);
  position:absolute;
  left:20px;top:50%;
  transform:translateY(-50%);
  width:34px;height:34px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:.95rem;
  font-weight:800;
  color:#fff;
  background:var(--grad-accent);
  border-radius:12px;
  box-shadow:0 4px 14px rgba(124,92,255,.32);
}
.howto-steps li:hover{
  transform:translateX(6px);
  box-shadow:var(--shadow-md);
  border-color:var(--brand-light);
}

/* ============ FAQ ============ */
.faq-item{
  margin-bottom:12px;
  background:var(--surface);
  border:1px solid var(--border-soft);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:box-shadow var(--transition),border-color var(--transition),background var(--transition);
}
.faq-item:hover{
  box-shadow:var(--shadow-md);
  border-color:var(--border);
}
.faq-q{margin:0}
.faq-q button{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:20px 24px;
  font-size:1rem;
  font-weight:700;
  line-height:1.55;
  color:var(--text);
  transition:color var(--transition),background var(--transition);
}
.faq-q button::after{
  content:"+";
  flex-shrink:0;
  width:28px;height:28px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.25rem;
  font-weight:400;
  line-height:1;
  color:var(--brand);
  background:rgba(43,108,176,.1);
  border-radius:50%;
  transition:transform var(--transition),background var(--transition),color var(--transition);
}
.faq-q button:hover{color:var(--brand);background:rgba(43,108,176,.04)}
.faq-q button[aria-expanded="true"]{
  color:var(--brand);
  background:rgba(43,108,176,.05);
}
.faq-q button[aria-expanded="true"]::after{
  content:"−";
  transform:rotate(180deg);
  background:var(--grad-btn);
  color:#fff;
}
.faq-a{
  display:none;
  padding:0 24px 22px;
  animation:slideFade .4s var(--ease);
}
.faq-a.open{display:block}
.faq-a p{
  color:var(--text-soft);
  line-height:1.85;
  margin:0;
  padding-top:4px;
  border-top:1px dashed var(--border);
  padding-top:18px;
}

/* ============ CONTACT ============ */
.contact-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:20px;
  margin-top:8px;
}
.contact-card{
  position:relative;
  padding:28px 26px;
  background:var(--surface-glass);
  -webkit-backdrop-filter:blur(16px) saturate(170%);
  backdrop-filter:blur(16px) saturate(170%);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.contact-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:4px;
  background:var(--grad-banner);
  opacity:.85;
}
.contact-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:var(--brand-light);
}
.contact-card h3{
  margin:0 0 16px;
  font-size:1.12rem;
  color:var(--text);
}
.contact-card p{
  margin-bottom:10px;
  font-size:.92rem;
  color:var(--text-soft);
  line-height:1.75;
  word-break:break-word;
}
.contact-card p:last-child{margin-bottom:0}
.contact-card a{font-weight:600;color:var(--brand)}
.contact-card a:hover{color:var(--accent)}

/* ============ SITEMAP / FRIENDS ============ */
.sitemap-list,
.friend-links{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:0;
  list-style:none;
}
.sitemap-list a,
.friend-links a{
  display:inline-flex;
  align-items:center;
  padding:9px 18px;
  font-size:.9rem;
  font-weight:500;
  color:var(--text-soft);
  background:var(--surface);
  border:1px solid var(--border-soft);
  border-radius:999px;
  box-shadow:var(--shadow-sm);
  transition:transform var(--transition),color var(--transition),background var(--transition),border-color var(--transition),box-shadow var(--transition);
}
.sitemap-list a:hover,
.friend-links a:hover{
  transform:translateY(-3px);
  color:#fff;
  background:var(--grad-btn);
  border-color:transparent;
  box-shadow:0 8px 20px rgba(43,108,176,.3);
}

/* ============ LEGAL ============ */
#legal{
  background:var(--surface-glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--border-soft);
  border-radius:var(--radius-xl);
  margin-top:24px;
  margin-bottom:24px;
  box-shadow:var(--shadow-sm);
}
#legal h3{
  color:var(--brand);
  margin-top:28px;
}
#legal h3:first-of-type{margin-top:0}

/* ============ META INFO ============ */
.meta-info{
  padding-top:32px;
  padding-bottom:32px;
}
.meta-info h2{
  font-size:1.1rem!important;
  margin-bottom:16px;
}
.meta-info p{
  font-size:.85rem;
  color:var(--text-mute);
  margin-bottom:6px;
  line-height:1.7;
}

/* ============ FOOTER ============ */
.site-footer{
  margin-top:40px;
  background:linear-gradient(180deg,var(--bg-soft),var(--surface));
  border-top:1px solid var(--border-soft);
  padding:48px 24px 40px;
}
.footer-inner{
  max-width:1240px;
  margin:0 auto;
  text-align:center;
}
.footer-inner p{
  color:var(--text-mute);
  font-size:.88rem;
  margin-bottom:8px;
  line-height:1.7;
}
.footer-inner p:first-child{
  font-size:1rem;
  font-weight:700;
  color:var(--text-soft);
  margin-bottom:12px;
  background:var(--grad-banner);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.footer-inner a{color:var(--brand);font-weight:600}
.footer-inner a:hover{color:var(--accent)}

/* ============ BACK TO TOP ============ */
.back-to-top{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:900;
  width:48px;height:48px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.2rem;
  font-weight:700;
  color:#fff;
  background:var(--grad-btn);
  border-radius:50%;
  box-shadow:0 8px 24px rgba(43,108,176,.4);
  opacity:0;
  visibility:hidden;
  transform:translateY(20px) scale(.85);
  transition:opacity var(--transition),visibility var(--transition),transform var(--transition),box-shadow var(--transition);
}
.back-to-top.show{
  opacity:1;
  visibility:visible;
  transform:translateY(0) scale(1);
}
.back-to-top:hover{
  transform:translateY(-4px) scale(1.06);
  box-shadow:0 14px 34px rgba(124,92,255,.5);
}

/* ============ SCROLL ANIMATION ============ */
.reveal{
  opacity:0;
  transform:translateY(32px);
  transition:opacity .8s var(--ease),transform .8s var(--ease);
  will-change:opacity,transform;
}
.reveal.visible{
  opacity:1;
  transform:translateY(0);
}
.reveal-delay-1{transition-delay:.08s}
.reveal-delay-2{transition-delay:.16s}
.reveal-delay-3{transition-delay:.24s}

/* ============ RESPONSIVE ============ */
@media (max-width:1100px){
  .main-nav a{padding:8px 9px;font-size:.85rem}
  .site-search input{width:110px}
}

@media (max-width:980px){
  :root{--header-h:64px}
  .header-inner{padding:0 16px;gap:12px}
  .main-nav{
    position:fixed;
    top:var(--header-h);
    left:0;right:0;
    background:var(--surface-glass-strong);
    -webkit-backdrop-filter:blur(20px) saturate(180%);
    backdrop-filter:blur(20px) saturate(180%);
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-lg);
    max-height:0;
    overflow:hidden;
    transition:max-height .45s var(--ease);
    z-index:999;
  }
  .main-nav.open{max-height:520px;overflow-y:auto}
  .main-nav ul{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:12px 16px 20px;
  }
  .main-nav a{
    padding:13px 16px;
    font-size:.95rem;
    border-radius:var(--radius-sm);
  }
  .main-nav a::after{display:none}
  .menu-toggle{display:flex}
  .site-search{display:none}
  .hero{padding:48px 28px 36px;margin:16px 16px 0;border-radius:var(--radius-lg)}
  .hero-slides{min-height:auto}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:8px;margin-top:28px;padding-top:24px}
  .section{padding:48px 16px}
  .contact-grid{grid-template-columns:1fr}
}

@media (max-width:640px){
  :root{--header-h:60px}
  body{font-size:15px}
  .brand-logo{width:34px;height:34px}
  .brand-name{font-size:1.05rem}
  .header-tools{gap:8px}
  .theme-toggle,.menu-toggle{width:36px;height:36px;font-size:1rem;border-radius:10px}
  .hero{padding:36px 20px 28px;margin:12px 12px 0;border-radius:var(--radius)}
  .hero h1,.hero h2{font-size:1.5rem;margin-bottom:14px}
  .hero-lead,.hero-slide p{font-size:.92rem;line-height:1.8}
  .hero-cta{gap:10px;margin-top:20px}
  .btn-primary,.btn-ghost{padding:11px 22px;font-size:.88rem;flex:1;min-width:140px}
  .hero-dots{margin:22px 0 4px}
  .hero-dots .dot{width:28px;height:5px}
  .hero-dots .dot.active{width:44px}
  .hero-stats{margin-top:24px;padding-top:20px;gap:4px}
  .stat{padding:10px 4px}
  .stat-num{font-size:1.35rem}
  .stat-label{font-size:.72rem}
  .breadcrumb{padding:0 16px;margin-top:16px}
  .section{padding:40px 16px}
  .section > h2{padding-left:16px;margin-bottom:22px}
  .section > h2::before{width:5px}
  .section h3{margin:28px 0 12px}
  .timeline li{padding:16px 16px 16px 50px}
  .timeline li::before{left:12px;width:26px;height:26px;font-size:.78rem}
  .timeline li::after{left:24px;top:46px}
  .advantage-list{grid-template-columns:1fr;gap:12px}
  .advantage-list li{padding:18px 18px 18px 48px}
  .advantage-list li::before{left:16px;top:18px}
  .news-list li{padding:16px 16px}
  .news-list time{margin-right:8px;margin-bottom:4px}
  .article-card{padding:20px 18px;border-radius:var(--radius)}
  .article-card h3{font-size:1.05rem}
  .howto-steps li{padding:18px 18px 18px 60px}
  .howto-steps li::before{left:16px;width:30px;height:30px;border-radius:10px;font-size:.85rem}
  .faq-q button{padding:16px 18px;font-size:.95rem;gap:12px}
  .faq-q button::after{width:24px;height:24px;font-size:1.1rem}
  .faq-a{padding:0 18px 18px}
  .faq-a p{padding-top:14px}
  .contact-card{padding:22px 20px;border-radius:var(--radius)}
  #legal{border-radius:var(--radius);padding:36px 18px}
  .sitemap-list a,.friend-links a{padding:8px 14px;font-size:.84rem}
  .back-to-top{right:16px;bottom:16px;width:44px;height:44px;font-size:1.05rem}
  .site-footer{padding:36px 16px 32px;margin-top:24px}
}

@media (max-width:380px){
  .hero-stats{grid-template-columns:1fr 1fr}
  .stat-num{font-size:1.2rem}
  .btn-primary,.btn-ghost{flex:1 1 100%}
}

/* ============ 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}
}

@media (prefers-contrast:more){
  :root{--border:rgba(43,108,176,.35);--border-soft:rgba(43,108,176,.22)}
  .section p,.section li{color:var(--text)}
}

@media print{
  .site-header,.back-to-top,.hero-dots,.hero-cta,.site-search,.theme-toggle,.menu-toggle{display:none!important}
  body{background:#fff;color:#000}
  .hero{background:#f0f0f0!important;color:#000;box-shadow:none;animation:none}
  .hero h1,.hero h2,.hero p{color:#000!important;text-shadow:none}
  .section{page-break-inside:avoid}
  a{color:#000;text-decoration:underline}
  .reveal{opacity:1;transform:none}
}
</｜｜DSML｜｜ parameter>
</｜｜DSML｜｜ invoke>
</｜｜DSML｜｜ calls>