:root{--bg:#f7f8fc;--surface:#ffffff;--surface-glass:rgba(255,255,255,.72);--text:#1b1b2f;--text-secondary:#4a4a6a;--border:#e2e4ed;--border-glass:rgba(255,255,255,.5);--primary:#1a1a2e;--accent:#e94560;--accent-soft:#ff6b81;--accent-glow:rgba(233,69,96,.35);--tag-bg:#f0f1f7;--shadow:0 4px 20px rgba(0,0,0,.06);--shadow-lg:0 12px 40px rgba(0,0,0,.12);--radius:12px;--radius-sm:8px;--radius-lg:20px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;--grad-hero:linear-gradient(135deg,#1a1a2e 0%,#16213e 48%,#0f3460 100%);--grad-accent:linear-gradient(135deg,#e94560 0%,#ff6b81 100%);--glass-blur:saturate(180%) blur(16px)}
[data-theme="dark"]{--bg:#12121c;--surface:#1c1c2e;--surface-glass:rgba(28,28,46,.72);--text:#eaeaf2;--text-secondary:#a8a8c0;--border:#2e2e44;--border-glass:rgba(255,255,255,.08);--primary:#eaeaf2;--accent:#ff6b81;--accent-soft:#e94560;--accent-glow:rgba(255,107,129,.35);--tag-bg:#2a2a40;--shadow:0 4px 20px rgba(0,0,0,.3);--shadow-lg:0 12px 40px rgba(0,0,0,.5);--grad-hero:linear-gradient(135deg,#0d0d18 0%,#151530 50%,#1a1a3e 100%)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;transition:background .35s ease,color .35s ease;overflow-x:hidden}
a{color:var(--accent);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent-soft)}
img{max-width:100%;height:auto;display:block}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.site-header{position:sticky;top:0;z-index:1000;background:var(--surface-glass);border-bottom:1px solid var(--border);box-shadow:0 1px 8px rgba(0,0,0,.04);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);transition:box-shadow .3s ease,background .35s ease}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.25rem;color:var(--text);white-space:nowrap;transition:transform .25s ease}
.logo:hover{transform:scale(1.03);color:var(--text)}
.logo svg{width:32px;height:32px;flex-shrink:0;transition:transform .35s ease}
.logo:hover svg{transform:rotate(-6deg)}
.logo span{color:var(--accent)}
.logo em{font-style:normal;color:var(--accent)}
.nav-desktop{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav-desktop a{color:var(--text-secondary);padding:8px 12px;border-radius:var(--radius-sm);font-size:.9rem;font-weight:500;white-space:nowrap;position:relative;transition:background .2s ease,color .2s ease}
.nav-desktop a::after{content:'';position:absolute;left:12px;right:12px;bottom:4px;height:2px;background:var(--grad-accent);border-radius:2px;transform:scaleX(0);transform-origin:center;transition:transform .25s ease}
.nav-desktop a:hover{background:var(--tag-bg);color:var(--accent)}
.nav-desktop a:hover::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:8px}
.search-box{display:flex;align-items:center;background:var(--tag-bg);border-radius:20px;padding:4px 12px;border:1px solid transparent;transition:border-color .25s ease,box-shadow .25s ease,background .25s ease}
.search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}
.search-box input{border:none;background:transparent;outline:none;color:var(--text);font-size:.85rem;width:120px;font-family:var(--font)}
.search-box input::placeholder{color:var(--text-secondary)}
.search-box button{background:none;border:none;cursor:pointer;color:var(--text-secondary);padding:2px;display:flex;align-items:center;transition:color .2s ease,transform .2s ease}
.search-box button:hover{color:var(--accent);transform:scale(1.12)}
.theme-toggle{background:var(--tag-bg);border:none;cursor:pointer;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);transition:background .25s ease,color .25s ease,transform .35s ease;flex-shrink:0}
.theme-toggle:hover{background:var(--accent);color:#fff;transform:rotate(18deg) scale(1.06)}
.mobile-menu-btn{display:none;background:var(--tag-bg);border:none;cursor:pointer;width:36px;height:36px;border-radius:var(--radius-sm);align-items:center;justify-content:center;color:var(--text);flex-shrink:0;transition:background .2s ease}
.mobile-menu-btn:hover{background:var(--accent);color:#fff}
.mobile-nav{display:none;position:fixed;top:64px;left:0;right:0;background:var(--surface-glass);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border-bottom:1px solid var(--border);padding:12px 20px;z-index:999;box-shadow:var(--shadow-lg);max-height:calc(100vh - 64px);overflow-y:auto;animation:slideDown .3s ease}
@keyframes slideDown{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}
.mobile-nav.active{display:block}
.mobile-nav a{display:block;padding:12px 8px;color:var(--text);border-bottom:1px solid var(--border);font-weight:500;transition:color .2s ease,padding-left .2s ease}
.mobile-nav a:hover{color:var(--accent);padding-left:14px}
.mobile-nav a:last-child{border-bottom:none}
.breadcrumb{padding:16px 0;font-size:.85rem;color:var(--text-secondary)}
.breadcrumb a{color:var(--text-secondary)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{margin:0 6px}
.hero{background:var(--grad-hero);color:#fff;padding:60px 0 50px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 78% 18%,rgba(233,69,96,.18) 0%,transparent 55%),radial-gradient(circle at 12% 85%,rgba(15,52,96,.5) 0%,transparent 60%);pointer-events:none}
.hero::after{content:'';position:absolute;top:-50%;right:-20%;width:600px;height:600px;background:radial-gradient(circle,rgba(233,69,96,.15) 0%,transparent 70%);border-radius:50%;pointer-events:none;animation:floatGlow 9s ease-in-out infinite}
@keyframes floatGlow{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-24px,28px) scale(1.08)}}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.hero-text h1{font-size:2.2rem;font-weight:800;line-height:1.3;margin-bottom:16px;letter-spacing:-.5px}
.hero-text h1 em{font-style:normal;background:linear-gradient(120deg,#ff6b81 0%,#e94560 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:#ff6b81}
.hero-text p{font-size:1.05rem;color:rgba(255,255,255,.8);margin-bottom:24px;line-height:1.8}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.hero-tags span{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.15);padding:5px 14px;border-radius:20px;font-size:.82rem;color:rgba(255,255,255,.9);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);transition:background .25s ease,transform .25s ease,border-color .25s ease}
.hero-tags span:hover{background:rgba(233,69,96,.35);border-color:rgba(255,107,129,.6);transform:translateY(-2px)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 22px;border-radius:24px;font-weight:600;font-size:.9rem;transition:all .25s ease;cursor:pointer;border:none;font-family:var(--font)}
.btn svg{transition:transform .25s ease}
.btn:hover svg{transform:translateX(3px)}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:0 4px 14px rgba(233,69,96,.3)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px var(--accent-glow)}
.btn-outline{background:rgba(255,255,255,.06);color:#fff;border:1px solid rgba(255,255,255,.35);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.btn-outline:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.12);transform:translateY(-2px)}
.hero-visual{display:flex;justify-content:center;align-items:center}
.hero-visual svg{width:100%;max-width:420px;height:auto;filter:drop-shadow(0 20px 40px rgba(0,0,0,.3));animation:heroFloat 6s ease-in-out infinite}
@keyframes heroFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.stats-section{padding:40px 0;background:var(--surface);border-bottom:1px solid var(--border);transition:background .35s ease}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-item .stat-num{font-size:2rem;font-weight:800;background:var(--grad-accent);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:var(--accent);line-height:1.2}
.stat-item .stat-label{font-size:.85rem;color:var(--text-secondary);margin-top:4px}
.section{padding:56px 0}
.section-alt{background:var(--surface);transition:background .35s ease}
.section-header{text-align:center;margin-bottom:40px}
.section-header h2{font-size:1.7rem;font-weight:800;margin-bottom:10px;letter-spacing:-.3px}
.section-header p{color:var(--text-secondary);font-size:.95rem;max-width:640px;margin:0 auto}
.section-header .divider{width:48px;height:3px;background:var(--grad-accent);border-radius:2px;margin:14px auto 0}
.about-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:start}
.about-text h3{font-size:1.2rem;font-weight:700;margin:20px 0 10px;position:relative;padding-left:14px}
.about-text h3::before{content:'';position:absolute;left:0;top:.35em;bottom:.35em;width:3px;border-radius:2px;background:var(--grad-accent)}
.about-text h3:first-child{margin-top:0}
.about-text p{color:var(--text-secondary);margin-bottom:14px;font-size:.95rem;line-height:1.85}
.about-sidebar{background:var(--surface-glass);border-radius:var(--radius);padding:24px;border:1px solid var(--border);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);box-shadow:var(--shadow);transition:transform .3s ease,box-shadow .3s ease}
.about-sidebar:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.about-sidebar h4{font-size:1rem;font-weight:700;margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.info-list{list-style:none}
.info-list li{display:flex;justify-content:space-between;padding:8px 0;font-size:.88rem;border-bottom:1px dashed var(--border)}
.info-list li:last-child{border-bottom:none}
.info-list li span:first-child{color:var(--text-secondary)}
.info-list li span:last-child{font-weight:600;color:var(--text)}
.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--surface-glass);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;position:relative;overflow:hidden;backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur)}
.card::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(233,69,96,.08) 0%,transparent 60%);opacity:0;transition:opacity .35s ease;pointer-events:none}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--accent-soft)}
.card:hover::before{opacity:1}
.card-icon{width:48px;height:48px;border-radius:12px;background:var(--tag-bg);display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:var(--accent);transition:background .3s ease,color .3s ease,transform .3s ease}
.card:hover .card-icon{background:var(--grad-accent);color:#fff;transform:scale(1.08) rotate(-4deg)}
.card h3{font-size:1.05rem;font-weight:700;margin-bottom:10px}
.card p{font-size:.88rem;color:var(--text-secondary);line-height:1.75}
.articles-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.article-card{background:var(--surface-glass);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;display:flex;flex-direction:column;backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);position:relative;overflow:hidden}
.article-card::after{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad-accent);transform:scaleY(0);transform-origin:top;transition:transform .35s ease}
.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--accent-soft)}
.article-card:hover::after{transform:scaleY(1)}
.article-meta{display:flex;align-items:center;gap:12px;font-size:.78rem;color:var(--text-secondary);margin-bottom:10px}
.article-meta .tag{background:var(--tag-bg);padding:2px 10px;border-radius:12px;font-weight:500;color:var(--accent);transition:background .25s ease,color .25s ease}
.article-card:hover .article-meta .tag{background:var(--grad-accent);color:#fff}
.article-card h3{font-size:1.02rem;font-weight:700;margin-bottom:8px;line-height:1.5}
.article-card p{font-size:.86rem;color:var(--text-secondary);line-height:1.7;flex:1;margin-bottom:14px}
.article-card .read-more{font-size:.85rem;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:4px;transition:gap .25s ease}
.article-card .read-more:hover{gap:8px}
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-item{background:var(--surface-glass);border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur)}
.case-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--accent-soft)}
.case-item .case-icon{margin:0 auto 14px;width:56px;height:56px;transition:transform .35s ease}
.case-item:hover .case-icon{transform:scale(1.1) rotate(3deg)}
.case-item h4{font-size:.98rem;font-weight:700;margin-bottom:8px}
.case-item p{font-size:.85rem;color:var(--text-secondary);line-height:1.7}
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testimonial{background:var(--surface-glass);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);position:relative}
.testimonial::before{content:'\201C';position:absolute;top:8px;right:20px;font-size:3.4rem;line-height:1;color:var(--accent);opacity:.14;font-family:Georgia,serif}
.testimonial:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--accent-soft)}
.testimonial .quote{font-size:.9rem;color:var(--text-secondary);line-height:1.8;margin-bottom:16px;font-style:italic}
.testimonial .author{display:flex;align-items:center;gap:10px}
.testimonial .avatar{width:40px;height:40px;border-radius:50%;background:var(--tag-bg);display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--accent);font-size:.9rem;transition:background .3s ease,color .3s ease}
.testimonial:hover .avatar{background:var(--grad-accent);color:#fff}
.testimonial .author-info .name{font-weight:600;font-size:.88rem}
.testimonial .author-info .role{font-size:.78rem;color:var(--text-secondary)}
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:var(--surface-glass);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:10px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur)}
.faq-item:hover{border-color:var(--accent-soft)}
.faq-item.open{border-color:var(--accent);box-shadow:var(--shadow)}
.faq-question{width:100%;background:none;border:none;padding:16px 20px;text-align:left;font-size:.95rem;font-weight:600;color:var(--text);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;font-family:var(--font);transition:background .2s ease}
.faq-question:hover{background:var(--tag-bg)}
.faq-question .arrow{transition:transform .3s ease;flex-shrink:0;color:var(--text-secondary)}
.faq-item.open .faq-question .arrow{transform:rotate(180deg);color:var(--accent)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;padding:0 20px}
.faq-item.open .faq-answer{max-height:600px;padding:0 20px 18px}
.faq-answer p{font-size:.88rem;color:var(--text-secondary);line-height:1.8}
.howto-steps{max-width:820px;margin:0 auto;counter-reset:step}
.howto-step{display:flex;gap:18px;margin-bottom:24px;position:relative;transition:transform .3s ease}
.howto-step:hover{transform:translateX(4px)}
.howto-step::before{counter-increment:step;content:counter(step);width:36px;height:36px;border-radius:50%;background:var(--grad-accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;flex-shrink:0;position:relative;z-index:1;box-shadow:0 4px 12px var(--accent-glow);transition:transform .3s ease}
.howto-step:hover::before{transform:scale(1.1)}
.howto-step:not(:last-child)::after{content:'';position:absolute;left:17px;top:36px;bottom:-24px;width:2px;background:linear-gradient(180deg,var(--accent) 0%,var(--border) 100%);opacity:.5}
.howto-step-content h4{font-size:1rem;font-weight:700;margin-bottom:6px}
.howto-step-content p{font-size:.88rem;color:var(--text-secondary);line-height:1.75}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.contact-card{background:var(--surface-glass);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;text-align:center;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur)}
.contact-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--accent-soft)}
.contact-card .contact-icon{width:52px;height:52px;border-radius:50%;background:var(--tag-bg);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;color:var(--accent);transition:background .3s ease,color .3s ease,transform .3s ease}
.contact-card:hover .contact-icon{background:var(--grad-accent);color:#fff;transform:scale(1.1) rotate(6deg)}
.contact-card h4{font-size:1rem;font-weight:700;margin-bottom:8px}
.contact-card p{font-size:.88rem;color:var(--text-secondary);line-height:1.7}
.contact-card a{font-size:.88rem}
.site-footer{background:var(--primary);color:rgba(255,255,255,.7);padding:48px 0 24px;margin-top:0;position:relative;overflow:hidden;transition:background .35s ease}
.site-footer::before{content:'';position:absolute;top:-120px;right:-80px;width:380px;height:380px;background:radial-gradient(circle,rgba(233,69,96,.16) 0%,transparent 70%);border-radius:50%;pointer-events:none}
[data-theme="dark"] .site-footer{background:#0a0a14}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px;position:relative;z-index:1}
.footer-brand .logo{color:#fff;margin-bottom:12px}
.footer-brand .logo span{color:#ff6b81}
.footer-brand .logo em{color:#ff6b81}
.footer-brand p{font-size:.85rem;line-height:1.8;color:rgba(255,255,255,.6);margin-bottom:16px}
.footer-col h4{color:#fff;font-size:.92rem;font-weight:700;margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:rgba(255,255,255,.6);font-size:.85rem;transition:color .2s ease,padding-left .2s ease;display:inline-block}
.footer-col ul li a:hover{color:#ff6b81;padding-left:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:.8rem;color:rgba(255,255,255,.5);position:relative;z-index:1}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:#ff6b81}
.back-to-top{position:fixed;bottom:28px;right:28px;width:44px;height:44px;border-radius:50%;background:var(--grad-accent);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px var(--accent-glow);opacity:0;visibility:hidden;transform:translateY(12px);transition:all .3s ease;z-index:900}
.back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{transform:translateY(-3px) scale(1.06);box-shadow:0 8px 26px var(--accent-glow)}
.search-results{display:none;background:var(--surface-glass);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:24px;box-shadow:var(--shadow);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur)}
.search-results.active{display:block;animation:slideDown .3s ease}
.search-results h4{font-size:.95rem;margin-bottom:12px}
.search-results ul{list-style:none}
.search-results ul li{padding:8px 0;border-bottom:1px solid var(--border);font-size:.88rem}
.search-results ul li:last-child{border-bottom:none}
.fade-in{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}
.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}
::selection{background:var(--accent);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:6px;border:2px solid var(--bg)}
::-webkit-scrollbar-thumb:hover{background:var(--accent)}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}}
@media (max-width:1024px){.hero-inner{grid-template-columns:1fr;gap:30px}.hero-visual{order:-1}.hero-visual svg{max-width:320px}.about-grid{grid-template-columns:1fr}.cards-grid{grid-template-columns:repeat(2,1fr)}.cases-grid{grid-template-columns:repeat(2,1fr)}.testimonials-grid{grid-template-columns:repeat(2,1fr)}.contact-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:768px){.nav-desktop{display:none}.mobile-menu-btn{display:flex}.search-box input{width:80px}.hero-text h1{font-size:1.6rem}.hero-text p{font-size:.95rem}.stats-grid{grid-template-columns:repeat(2,1fr);gap:20px}.articles-grid{grid-template-columns:1fr}.cards-grid{grid-template-columns:1fr}.cases-grid{grid-template-columns:1fr}.testimonials-grid{grid-template-columns:1fr}.contact-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.section{padding:40px 0}.section-header h2{font-size:1.35rem}.howto-step{gap:14px}.back-to-top{bottom:20px;right:20px;width:40px;height:40px}}
@media (max-width:480px){.search-box{display:none}.hero{padding:40px 0 36px}.hero-text h1{font-size:1.4rem}.hero-cta{flex-direction:column}.btn{justify-content:center}.footer-bottom{flex-direction:column;text-align:center}.stat-item .stat-num{font-size:1.6rem}}