:root{
  --hg-primary:#e63946;
  --hg-primary-dark:#c1121f;
  --hg-primary-light:#f77f00;
  --hg-accent:#ffd166;
  --hg-bg:#ffffff;
  --hg-bg-soft:#fff8f8;
  --hg-bg-elev:#ffffff;
  --hg-text:#222222;
  --hg-text-strong:#1a1a1a;
  --hg-text-muted:#666666;
  --hg-text-faint:#999999;
  --hg-border:#eeeeee;
  --hg-border-soft:#ffe0e0;
  --hg-shadow:0 2px 8px rgba(0,0,0,.04);
  --hg-shadow-card:0 6px 20px rgba(0,0,0,.08);
  --hg-shadow-float:0 12px 32px rgba(230,57,70,.18);
  --hg-radius-sm:10px;
  --hg-radius:12px;
  --hg-radius-lg:16px;
  --hg-radius-pill:999px;
  --hg-glass-bg:rgba(255,255,255,.72);
  --hg-glass-border:rgba(255,255,255,.55);
  --hg-glass-blur:blur(16px) saturate(180%);
  --hg-transition:.3s cubic-bezier(.22,.61,.36,1);
  --hg-maxw:1200px;
}

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

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--hg-text);
  background:var(--hg-bg);
  line-height:1.8;
  font-size:16px;
  overflow-x:hidden;
  transition:background var(--hg-transition),color var(--hg-transition);
}

::selection{background:var(--hg-primary);color:#fff}

a{color:var(--hg-primary);text-decoration:none;transition:color var(--hg-transition),opacity var(--hg-transition)}
a:hover{text-decoration:underline}
a:focus-visible{outline:2px solid var(--hg-primary);outline-offset:2px;border-radius:4px}

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

.skip-link{
  position:absolute;left:-9999px;top:0;
  background:var(--hg-primary);color:#fff;
  padding:8px 16px;z-index:9999;border-radius:0 0 8px 0;
}
.skip-link:focus{left:8px;top:8px}

/* ================= 头部 ================= */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:var(--hg-glass-bg);
  -webkit-backdrop-filter:var(--hg-glass-blur);
  backdrop-filter:var(--hg-glass-blur);
  border-bottom:1px solid rgba(0,0,0,.06);
  box-shadow:var(--hg-shadow);
  transition:background var(--hg-transition),border-color var(--hg-transition);
}

.header-inner{
  max-width:var(--hg-maxw);margin:0 auto;
  padding:12px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}

.logo{
  display:flex;align-items:center;gap:10px;
  font-size:20px;font-weight:700;color:var(--hg-primary);
  letter-spacing:.5px;white-space:nowrap;
}
.logo svg{
  width:36px;height:36px;flex-shrink:0;
  transition:transform .5s cubic-bezier(.34,1.56,.64,1),filter var(--hg-transition);
  filter:drop-shadow(0 2px 6px rgba(230,57,70,.35));
}
.logo:hover{text-decoration:none}
.logo:hover svg{transform:rotate(360deg) scale(1.08)}

.main-nav ul{
  display:flex;list-style:none;gap:22px;flex-wrap:wrap;align-items:center;
}
.main-nav a{
  color:var(--hg-text);font-size:15px;font-weight:500;
  position:relative;padding:4px 0;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:-2px;
  width:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--hg-primary),var(--hg-primary-light));
  transition:width var(--hg-transition);
}
.main-nav a:hover{color:var(--hg-primary);text-decoration:none}
.main-nav a:hover::after{width:100%}

.header-actions{display:flex;align-items:center;gap:12px}

.search-box{
  display:flex;
  border:1px solid var(--hg-border);
  border-radius:var(--hg-radius-pill);
  overflow:hidden;
  background:rgba(255,255,255,.6);
  transition:border-color var(--hg-transition),box-shadow var(--hg-transition);
}
.search-box:focus-within{
  border-color:var(--hg-primary);
  box-shadow:0 0 0 3px rgba(230,57,70,.12);
}
.search-box input{
  border:none;outline:none;background:transparent;
  padding:6px 14px;font-size:14px;width:150px;color:var(--hg-text);
  font-family:inherit;
}
.search-box input::placeholder{color:var(--hg-text-faint)}
.search-box button{
  border:none;
  background:linear-gradient(135deg,var(--hg-primary),var(--hg-primary-dark));
  color:#fff;padding:6px 16px;cursor:pointer;font-size:14px;
  font-family:inherit;font-weight:500;
  transition:filter var(--hg-transition),transform var(--hg-transition);
}
.search-box button:hover{filter:brightness(1.08)}
.search-box button:active{transform:scale(.96)}

.theme-toggle{
  background:rgba(255,255,255,.6);
  border:1px solid var(--hg-border);
  border-radius:50%;width:36px;height:36px;
  cursor:pointer;font-size:16px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  transition:transform var(--hg-transition),background var(--hg-transition),border-color var(--hg-transition);
}
.theme-toggle:hover{transform:rotate(20deg) scale(1.08);background:var(--hg-bg-soft)}

.menu-toggle{
  display:none;background:none;border:none;
  font-size:24px;cursor:pointer;color:var(--hg-text);
  line-height:1;padding:2px 6px;border-radius:8px;
  transition:background var(--hg-transition);
}
.menu-toggle:hover{background:var(--hg-bg-soft)}

/* ================= 面包屑 ================= */
.breadcrumb{
  max-width:var(--hg-maxw);margin:0 auto;
  padding:12px 20px;font-size:14px;color:var(--hg-text-faint);
}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumb li::after{content:"›";margin-left:6px;color:#ccc}
.breadcrumb li:last-child::after{content:""}
.breadcrumb a{color:var(--hg-text-muted)}
.breadcrumb a:hover{color:var(--hg-primary)}

/* ================= Banner ================= */
.banner{max-width:var(--hg-maxw);margin:0 auto;padding:0 20px}

.banner-track{
  position:relative;
  border-radius:var(--hg-radius-lg);
  overflow:hidden;
  background:linear-gradient(135deg,#e63946 0%,#f77f00 55%,#ffb703 100%);
  color:#fff;
  min-height:280px;
  display:flex;align-items:center;
  box-shadow:var(--hg-shadow-float);
  isolation:isolate;
}
.banner-track::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(circle at 85% 20%,rgba(255,255,255,.28),transparent 45%),
    radial-gradient(circle at 10% 90%,rgba(255,255,255,.18),transparent 40%);
  pointer-events:none;
}
.banner-track::after{
  content:"";position:absolute;right:-60px;bottom:-80px;z-index:0;
  width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.12);
  pointer-events:none;
  animation:hg-float 8s ease-in-out infinite;
}

@keyframes hg-float{
  0%,100%{transform:translateY(0) scale(1)}
  50%{transform:translateY(-18px) scale(1.05)}
}

.banner-slide{
  display:none;padding:40px;width:100%;
  position:relative;z-index:1;
  animation:hg-fade-up .6s cubic-bezier(.22,.61,.36,1) both;
}
.banner-slide.active{display:block}

@keyframes hg-fade-up{
  from{opacity:0;transform:translateY(18px)}
  to{opacity:1;transform:translateY(0)}
}

.banner-slide h2{
  font-size:28px;margin-bottom:12px;color:#fff;
  border:none;padding:0;line-height:1.35;
  text-shadow:0 2px 12px rgba(0,0,0,.18);
}
.banner-slide p{
  font-size:16px;opacity:.96;max-width:640px;color:#fff;
  margin-bottom:0;text-shadow:0 1px 8px rgba(0,0,0,.15);
}

.banner-dots{
  position:absolute;bottom:16px;left:50%;
  transform:translateX(-50%);
  display:flex;gap:8px;z-index:2;
}
.banner-dots button{
  width:10px;height:10px;border-radius:50%;border:none;
  background:rgba(255,255,255,.5);cursor:pointer;padding:0;
  transition:background var(--hg-transition),transform var(--hg-transition),width var(--hg-transition);
}
.banner-dots button:hover{background:rgba(255,255,255,.85);transform:scale(1.2)}
.banner-dots button.active{background:#fff;width:26px;border-radius:var(--hg-radius-pill)}

/* ================= 主体 ================= */
main{max-width:var(--hg-maxw);margin:0 auto;padding:20px}

section{margin:48px 0;scroll-margin-top:88px}

h1{font-size:30px;line-height:1.4;margin-bottom:16px;color:var(--hg-text-strong);letter-spacing:-.3px}

h2{
  font-size:24px;margin:32px 0 16px;color:var(--hg-text-strong);
  border-left:4px solid var(--hg-primary);
  padding-left:12px;line-height:1.4;
}
h2::before{
  content:"";display:block;width:0;height:0;
}

h3{font-size:19px;margin:24px 0 12px;color:#333;line-height:1.5}
h4{font-size:17px;margin:18px 0 10px;color:#444;line-height:1.5}

p{margin-bottom:14px;color:#333}

ul,ol{margin:0 0 16px 24px}
li{margin-bottom:6px}

/* ================= 简介 ================= */
.intro{
  background:
    linear-gradient(135deg,rgba(230,57,70,.06),rgba(247,127,0,.06)),
    var(--hg-bg-soft);
  border-radius:var(--hg-radius-lg);
  padding:28px;
  border:1px solid var(--hg-border-soft);
  position:relative;
  overflow:hidden;
}
.intro::before{
  content:"";position:absolute;top:-40px;right:-40px;
  width:160px;height:160px;border-radius:50%;
  background:radial-gradient(circle,rgba(230,57,70,.14),transparent 70%);
  pointer-events:none;
}
.intro p{font-size:17px;position:relative;z-index:1}
.intro p:last-child{margin-bottom:0}

/* ================= 统计 ================= */
.stats-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
  gap:20px;margin:24px 0;
}
.stat-card{
  background:var(--hg-bg-elev);
  border:1px solid var(--hg-border);
  border-radius:var(--hg-radius);
  padding:24px;text-align:center;
  position:relative;overflow:hidden;
  transition:transform var(--hg-transition),box-shadow var(--hg-transition),border-color var(--hg-transition);
}
.stat-card::after{
  content:"";position:absolute;left:0;top:0;height:3px;width:100%;
  background:linear-gradient(90deg,var(--hg-primary),var(--hg-primary-light));
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--hg-transition);
}
.stat-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--hg-shadow-card);
  border-color:var(--hg-border-soft);
}
.stat-card:hover::after{transform:scaleX(1)}

.stat-num{
  font-size:32px;font-weight:700;color:var(--hg-primary);
  line-height:1.2;font-variant-numeric:tabular-nums;
}
.stat-label{font-size:14px;color:var(--hg-text-muted);margin-top:6px}

/* ================= 卡片网格 ================= */
.card-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:20px;
}
.card{
  background:var(--hg-bg-elev);
  border:1px solid var(--hg-border);
  border-radius:var(--hg-radius);
  padding:22px;
  transition:transform var(--hg-transition),box-shadow var(--hg-transition),border-color var(--hg-transition);
  position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(230,57,70,.05),transparent 55%);
  opacity:0;transition:opacity var(--hg-transition);
  pointer-events:none;
}
.card:hover{
  transform:translateY(-6px);
  box-shadow:var(--hg-shadow-card);
  border-color:var(--hg-border-soft);
}
.card:hover::before{opacity:1}
.card h3{margin-top:0}

/* ================= 文章列表 ================= */
.article-list{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
  gap:20px;
}
.article-item{
  background:var(--hg-bg-elev);
  border:1px solid var(--hg-border);
  border-radius:var(--hg-radius);
  padding:20px;
  display:flex;flex-direction:column;
  transition:transform var(--hg-transition),box-shadow var(--hg-transition),border-color var(--hg-transition);
}
.article-item:hover{
  transform:translateY(-6px);
  box-shadow:var(--hg-shadow-card);
  border-color:var(--hg-border-soft);
}
.article-item h3{font-size:17px;margin:0 0 8px;line-height:1.5;color:var(--hg-text-strong)}
.article-meta{font-size:13px;color:var(--hg-text-faint);margin-bottom:10px}
.article-item p{font-size:14px;color:#555;flex:1}
.read-more{
  font-size:14px;font-weight:500;
  display:inline-flex;align-items:center;gap:4px;
  margin-top:auto;
  transition:gap var(--hg-transition),color var(--hg-transition);
}
.read-more:hover{gap:9px;text-decoration:none;color:var(--hg-primary-dark)}

/* ================= FAQ ================= */
.faq-item{
  border:1px solid var(--hg-border);
  border-radius:var(--hg-radius-sm);
  margin-bottom:12px;overflow:hidden;
  background:var(--hg-bg-elev);
  transition:box-shadow var(--hg-transition),border-color var(--hg-transition);
}
.faq-item:hover{border-color:var(--hg-border-soft)}
.faq-item.open{box-shadow:var(--hg-shadow-card);border-color:var(--hg-border-soft)}

.faq-q{
  width:100%;text-align:left;background:#fafafa;border:none;
  padding:16px 20px;font-size:16px;font-weight:600;cursor:pointer;
  color:var(--hg-text);display:flex;justify-content:space-between;align-items:center;
  font-family:inherit;line-height:1.6;
  transition:background var(--hg-transition),color var(--hg-transition);
}
.faq-q:hover{background:#f2f2f2}
.faq-q::after{
  content:"+";font-size:20px;color:var(--hg-primary);
  flex-shrink:0;margin-left:12px;font-weight:400;
  transition:transform var(--hg-transition);
}
.faq-item.open .faq-q::after{content:"−";transform:rotate(180deg)}
.faq-item.open .faq-q{background:#fff5f5}

.faq-a{
  display:none;padding:16px 20px;font-size:15px;color:#444;
  border-top:1px solid var(--hg-border);
  animation:hg-fade-up .35s ease both;
}
.faq-item.open .faq-a{display:block}

/* ================= 教程步骤 ================= */
.howto-step{display:flex;gap:16px;margin-bottom:20px}
.step-num{
  flex-shrink:0;width:36px;height:36px;border-radius:50%;
  background:linear-gradient(135deg,var(--hg-primary),var(--hg-primary-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;
  box-shadow:0 4px 12px rgba(230,57,70,.28);
  transition:transform var(--hg-transition);
}
.howto-step:hover .step-num{transform:scale(1.1) rotate(-6deg)}
.step-body h4{margin:0 0 6px}
.step-body p{font-size:15px;margin-bottom:0}

/* ================= 案例 ================= */
.case-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:20px;
}
.case-card{
  background:linear-gradient(135deg,#fff5f5,#fff);
  border:1px solid var(--hg-border-soft);
  border-radius:var(--hg-radius);
  padding:22px;
  position:relative;overflow:hidden;
  transition:transform var(--hg-transition),box-shadow var(--hg-transition);
}
.case-card::after{
  content:"";position:absolute;right:-30px;top:-30px;
  width:100px;height:100px;border-radius:50%;
  background:radial-gradient(circle,rgba(230,57,70,.1),transparent 70%);
  pointer-events:none;
}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--hg-shadow-card)}
.case-card h3{margin-top:0;color:var(--hg-primary-dark)}

/* ================= 评价 ================= */
.testimonial{
  background:#f8f9fa;border-radius:var(--hg-radius);
  padding:22px;border-left:4px solid var(--hg-primary);
  position:relative;
  transition:transform var(--hg-transition),box-shadow var(--hg-transition);
}
.testimonial:hover{transform:translateX(4px);box-shadow:var(--hg-shadow-card)}
.testimonial p{font-style:italic;color:#444}
.testimonial .author{font-size:14px;color:var(--hg-text-faint);margin-top:10px;font-style:normal}

/* ================= 联系 ================= */
.contact-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:20px;
}
.contact-card{
  background:var(--hg-bg-elev);
  border:1px solid var(--hg-border);
  border-radius:var(--hg-radius);
  padding:22px;
  transition:transform var(--hg-transition),box-shadow var(--hg-transition),border-color var(--hg-transition);
}
.contact-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--hg-shadow-card);
  border-color:var(--hg-border-soft);
}
.contact-card h4{margin-top:0;color:var(--hg-primary)}
.contact-card p:last-child{margin-bottom:0}

/* ================= 锚点导航 ================= */
.anchor-nav{
  background:rgba(248,249,250,.85);
  -webkit-backdrop-filter:var(--hg-glass-blur);
  backdrop-filter:var(--hg-glass-blur);
  border:1px solid var(--hg-border);
  border-radius:var(--hg-radius);
  padding:20px;margin:24px 0;
}
.anchor-nav ul{
  display:flex;flex-wrap:wrap;gap:12px;list-style:none;margin:0;
}
.anchor-nav a{
  font-size:14px;background:var(--hg-bg-elev);
  border:1px solid var(--hg-border);
  border-radius:var(--hg-radius-pill);
  padding:6px 14px;display:inline-block;
  color:var(--hg-text-muted);
  transition:all var(--hg-transition);
}
.anchor-nav a:hover{
  color:#fff;text-decoration:none;
  background:linear-gradient(135deg,var(--hg-primary),var(--hg-primary-dark));
  border-color:transparent;
  transform:translateY(-3px);
  box-shadow:0 6px 16px rgba(230,57,70,.25);
}

/* ================= 页脚 ================= */
footer{
  background:#1a1a1a;color:#bbb;
  padding:40px 20px 20px;margin-top:60px;
  position:relative;
}
footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--hg-primary),var(--hg-primary-light),var(--hg-accent));
}
.footer-inner{
  max-width:var(--hg-maxw);margin:0 auto;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
  gap:30px;
}
footer h4{color:#fff;margin:0 0 12px;font-size:16px}
footer ul{list-style:none;margin:0}
footer li{margin-bottom:8px}
footer a{color:#bbb;font-size:14px;transition:color var(--hg-transition),padding-left var(--hg-transition)}
footer a:hover{color:#fff;padding-left:4px;text-decoration:none}
.footer-bottom{
  max-width:var(--hg-maxw);margin:30px auto 0;
  padding-top:20px;border-top:1px solid #333;
  font-size:13px;color:#888;text-align:center;
}
.footer-bottom p{margin-bottom:6px;color:#888}

/* ================= 返回顶部 ================= */
.back-to-top{
  position:fixed;right:24px;bottom:24px;
  width:44px;height:44px;border-radius:50%;
  background:linear-gradient(135deg,var(--hg-primary),var(--hg-primary-dark));
  color:#fff;border:none;cursor:pointer;font-size:20px;
  display:none;z-index:900;
  box-shadow:0 4px 12px rgba(230,57,70,.4);
  transition:transform var(--hg-transition),box-shadow var(--hg-transition);
}
.back-to-top.show{display:flex;align-items:center;justify-content:center}
.back-to-top:hover{transform:translateY(-4px) scale(1.06);box-shadow:0 8px 22px rgba(230,57,70,.5)}

/* ================= 滚动动画 ================= */
.reveal{
  opacity:0;transform:translateY(20px);
  transition:opacity .6s ease,transform .6s cubic-bezier(.22,.61,.36,1);
}
.reveal.visible{opacity:1;transform:none}

/* ================= 暗色模式 ================= */
body.dark{
  --hg-bg:#121212;
  --hg-bg-soft:#1e1e1e;
  --hg-bg-elev:#1e1e1e;
  --hg-text:#dddddd;
  --hg-text-strong:#f0f0f0;
  --hg-text-muted:#aaaaaa;
  --hg-text-faint:#888888;
  --hg-border:#333333;
  --hg-border-soft:#3a2a2a;
  --hg-shadow:0 2px 8px rgba(0,0,0,.4);
  --hg-shadow-card:0 6px 20px rgba(0,0,0,.5);
  --hg-glass-bg:rgba(30,30,30,.75);
  --hg-glass-border:rgba(255,255,255,.08);
  background:#121212;color:#ddd;
}
body.dark .site-header{background:var(--hg-glass-bg);border-color:#333}
body.dark .main-nav a{color:#ccc}
body.dark h1,body.dark h2,body.dark h3,body.dark h4{color:#f0f0f0}
body.dark p,body.dark li{color:#bbb}
body.dark .card,
body.dark .article-item,
body.dark .stat-card,
body.dark .contact-card,
body.dark .faq-item{background:#1e1e1e;border-color:#333}
body.dark .faq-q{background:#252525;color:#eee}
body.dark .faq-q:hover{background:#2c2c2c}
body.dark .faq-item.open .faq-q{background:#2a1c1c}
body.dark .faq-a{color:#bbb;border-color:#333}
body.dark .intro{background:#1e1e1e;border-color:#333}
body.dark .anchor-nav{background:#1e1e1e;border-color:#333}
body.dark .anchor-nav a{background:#252525;border-color:#333;color:#ccc}
body.dark .anchor-nav a:hover{background:linear-gradient(135deg,var(--hg-primary),var(--hg-primary-dark));color:#fff}
body.dark .testimonial{background:#1e1e1e}
body.dark .testimonial p{color:#bbb}
body.dark .search-box{background:#252525;border-color:#333}
body.dark .search-box input{background:transparent;color:#eee}
body.dark .theme-toggle{background:#252525;border-color:#333;color:#eee}
body.dark .menu-toggle{color:#eee}
body.dark .case-card{background:linear-gradient(135deg,#2a1c1c,#1e1e1e);border-color:#3a2a2a}
body.dark .case-card h3{color:#f0f0f0}
body.dark .article-item p{color:#aaa}
body.dark .breadcrumb li::after{color:#555}

/* ================= 响应式 ================= */
@media(max-width:1024px){
  .header-inner{gap:12px}
  .main-nav ul{gap:16px}
  .search-box input{width:120px}
}

@media(max-width:860px){
  .main-nav{
    display:none;
    position:absolute;top:100%;left:0;right:0;
    background:var(--hg-glass-bg);
    -webkit-backdrop-filter:var(--hg-glass-blur);
    backdrop-filter:var(--hg-glass-blur);
    border-bottom:1px solid var(--hg-border);
    padding:16px 20px;
    box-shadow:0 8px 24px rgba(0,0,0,.08);
    animation:hg-fade-up .3s ease both;
  }
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;gap:12px}
  .main-nav a{display:block;padding:6px 0;font-size:16px}
  .menu-toggle{display:block}
  body.dark .main-nav{background:var(--hg-glass-bg)}

  .search-box input{width:100px}
  h1{font-size:24px}
  h2{font-size:20px}
  h3{font-size:17px}
  section{margin:36px 0}

  .banner-slide{padding:28px}
  .banner-slide h2{font-size:22px}
  .banner-slide p{font-size:15px}
  .banner-track{min-height:240px}

  .intro{padding:22px}
  .intro p{font-size:16px}
  .stat-num{font-size:26px}
  .back-to-top{right:16px;bottom:16px;width:40px;height:40px}
}

@media(max-width:560px){
  body{font-size:15px}
  .header-inner{padding:10px 14px}
  .logo{font-size:17px}
  .logo svg{width:30px;height:30px}
  .search-box{display:none}
  main{padding:14px}
  .banner{padding:0 14px}
  .breadcrumb{padding:10px 14px}
  h1{font-size:21px}
  h2{font-size:18px;padding-left:10px}
  .banner-slide{padding:22px}
  .banner-slide h2{font-size:19px}
  .banner-track{min-height:220px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .stat-card{padding:18px 12px}
  .stat-num{font-size:22px}
  .stat-label{font-size:12px}
  .card-grid,.article-list,.case-grid,.contact-grid{grid-template-columns:1fr}
  .howto-step{gap:12px}
  .step-num{width:30px;height:30px;font-size:14px}
  .footer-inner{grid-template-columns:1fr;gap:22px}
  .anchor-nav ul{gap:8px}
  .anchor-nav a{font-size:13px;padding:5px 11px}
}

@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 print{
  .site-header,.banner,.anchor-nav,.back-to-top,footer{display:none}
  body{background:#fff;color:#000}
  .reveal{opacity:1;transform:none}
}