/* Flaunch 官网样式 — 深浅双主题 */
:root[data-theme="dark"] {
    --bg-start:#06061a; --bg-mid:#0d1025; --bg-end:#111630;
    --card:rgba(22,22,50,.55); --card-hover:rgba(28,28,60,.7);
    --accent:#0078d4; --accent-light:#1a8eff;
    --text:#e6e6f2; --text-secondary:#9090b8; --text-muted:#6868a0;
    --border:rgba(255,255,255,.06); --border-hover:rgba(255,255,255,.14);
    --shadow:0 1px 2px rgba(0,0,0,.3);
    --orb-1:rgba(0,120,212,.5); --orb-2:rgba(100,50,200,.4); --orb-3:rgba(0,180,180,.35);
}
:root[data-theme="light"] {
    --bg-start:#f8fafc; --bg-mid:#ecf2fb; --bg-end:#e3edfa;
    --card:rgba(255,255,255,.7); --card-hover:rgba(255,255,255,.9);
    --accent:#0066cc; --accent-light:#1a8eff;
    --text:#1a1a2e; --text-secondary:#5a5e7a; --text-muted:#9ca3b8;
    --border:rgba(0,0,0,.06); --border-hover:rgba(0,0,0,.14);
    --shadow:0 4px 16px rgba(0,0,0,.08);
    --orb-1:rgba(0,120,212,.18); --orb-2:rgba(100,50,200,.15); --orb-3:rgba(0,180,180,.12);
}
:root {
    --radius-sm:10px; --radius:14px; --radius-lg:20px; --radius-xl:24px;
    --transition:.35s cubic-bezier(.22,.61,.36,1);
    --transition-fast:.2s cubic-bezier(.22,.61,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
    font-family:"Segoe UI","Segoe UI Variable Text","Microsoft YaHei UI","Microsoft YaHei",sans-serif;
    background:var(--bg-start); color:var(--text); line-height:1.7;
    -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
    overflow-x:hidden; min-height:100vh; transition:background .8s ease,color .3s;
}
img{max-width:100%}
a{color:inherit;text-decoration:none;transition:color var(--transition-fast)}
a:hover{color:var(--accent-light)}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}

.bg-gradient{position:fixed;inset:0;pointer-events:none;z-index:0;background:linear-gradient(180deg,var(--bg-start) 0%,var(--bg-mid) 40%,var(--bg-end) 100%);transition:background .5s ease}
.bg-orbs{position:fixed;inset:0;pointer-events:none;z-index:0;overflow:hidden}
.bg-orb{position:absolute;border-radius:50%;filter:blur(140px);opacity:.18}
.bg-orb--1{width:700px;height:700px;background:radial-gradient(circle,var(--orb-1) 0%,transparent 70%);top:-250px;left:-180px}
.bg-orb--2{width:550px;height:550px;background:radial-gradient(circle,var(--orb-2) 0%,transparent 70%);top:40%;right:-200px}
.bg-orb--3{width:400px;height:400px;background:radial-gradient(circle,var(--orb-3) 0%,transparent 70%);bottom:5%;left:30%}
.bg-grain{position:fixed;inset:0;pointer-events:none;z-index:1;opacity:.03;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.72' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* 公告条 */
.announcement{position:relative;z-index:50;background:linear-gradient(90deg,#0078d4,#1a8eff);color:#fff;animation:slideDown .4s}
@keyframes slideDown{from{transform:translateY(-100%)}to{transform:translateY(0)}}
.announcement-inner{max-width:1280px;margin:0 auto;padding:10px 24px;display:flex;align-items:center;gap:10px;font-size:14px}
.announcement-emoji{font-size:18px}
.announcement-close{margin-left:auto;color:#fff;width:24px;height:24px;border-radius:50%;font-size:18px;line-height:1}
.announcement-close:hover{background:rgba(255,255,255,.2)}
.announcement.level-warning{background:linear-gradient(90deg,#d97706,#f59e0b)}
.announcement.level-success{background:linear-gradient(90deg,#15803d,#22c55e)}
.announcement.level-danger{background:linear-gradient(90deg,#b91c1c,#ef4444)}

/* 导航 */
.nav{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;padding:14px 24px;backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);background:color-mix(in srgb,var(--bg-start) 70%,transparent);border-bottom:1px solid transparent;transition:all var(--transition)}
.nav.scrolled{border-bottom-color:var(--border);background:color-mix(in srgb,var(--bg-start) 90%,transparent)}
.nav-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--text)}
.nav-logo{width:34px;height:34px;border-radius:8px;background:linear-gradient(135deg,var(--accent),var(--accent-light));display:flex;align-items:center;justify-content:center;color:#fff;overflow:hidden}
.nav-logo img{width:24px;height:24px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:8px 14px;border-radius:8px;font-size:14px;color:var(--text-secondary);transition:all var(--transition-fast)}
.nav-links a:hover{color:var(--text);background:var(--card)}
.theme-toggle{padding:6px 10px;border-radius:8px;border:1px solid var(--border);font-size:14px}
.theme-toggle:hover{border-color:var(--accent)}
:root[data-theme="dark"] .theme-icon-light{display:none}
:root[data-theme="light"] .theme-icon-dark{display:none}
.nav-cta{background:linear-gradient(135deg,var(--accent),var(--accent-light));color:#fff !important;padding:8px 18px !important;border-radius:8px;font-weight:600}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(0,120,212,.4);background:linear-gradient(135deg,var(--accent-light),var(--accent))}
.nav-mobile{display:none;font-size:24px;padding:6px 12px}

/* 内容容器 */
.content{position:relative;z-index:2;max-width:1280px;margin:0 auto;padding:0 24px}

/* Hero */
.hero{padding:80px 0 100px;text-align:center;position:relative}
.hero-particles{position:absolute;inset:0;pointer-events:none}
.hero-particle{position:absolute;width:4px;height:4px;background:var(--accent-light);border-radius:50%;opacity:.4;animation:float 6s ease-in-out infinite}
.hero-particle:nth-child(1){top:20%;left:15%;animation-delay:0s}
.hero-particle:nth-child(2){top:60%;left:80%;animation-delay:1s}
.hero-particle:nth-child(3){top:30%;left:60%;animation-delay:2s}
.hero-particle:nth-child(4){top:70%;left:30%;animation-delay:3s}
.hero-particle:nth-child(5){top:40%;left:90%;animation-delay:4s}
.hero-particle:nth-child(6){top:80%;left:50%;animation-delay:5s}
@keyframes float{0%,100%{transform:translate(0,0)}50%{transform:translate(20px,-30px)}}
.logo-wrap{position:relative;width:120px;height:120px;margin:0 auto 28px}
.logo-glow{position:absolute;inset:-20px;border-radius:50%;background:radial-gradient(circle,var(--accent) 0%,transparent 70%);opacity:.5;filter:blur(20px);animation:pulse 4s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.4;transform:scale(1)}50%{opacity:.7;transform:scale(1.1)}}
.logo{position:relative;width:100%;height:100%;border-radius:28px;background:linear-gradient(135deg,var(--accent),var(--accent-light));display:flex;align-items:center;justify-content:center;box-shadow:0 20px 60px rgba(0,120,212,.4);overflow:hidden}
.logo img{width:80px;height:80px}
.hero h1{font-size:clamp(48px,7vw,84px);font-weight:800;letter-spacing:-2px;background:linear-gradient(135deg,var(--text) 0%,var(--accent-light) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:14px}
.subtitle{font-size:clamp(16px,2vw,20px);color:var(--text-secondary);max-width:640px;margin:0 auto 8px}
.hero-tagline{color:var(--text-muted);font-size:14px;margin-bottom:24px}
.version-badge{display:inline-block;padding:6px 16px;border:1px solid var(--border);border-radius:100px;font-size:13px;color:var(--text-secondary);margin-bottom:32px;background:var(--card)}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;max-width:640px;margin:60px auto 0;padding-top:40px;border-top:1px solid var(--border)}
.hs-num{font-size:28px;font-weight:700;color:var(--text);margin-bottom:4px;background:linear-gradient(135deg,var(--accent),var(--accent-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hs-label{font-size:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 24px;border-radius:10px;font-size:14px;font-weight:600;transition:all var(--transition);text-decoration:none;border:1px solid transparent;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-light));color:#fff;box-shadow:0 8px 24px rgba(0,120,212,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(0,120,212,.45);color:#fff}
.btn-outline{border-color:var(--border-hover);color:var(--text);background:var(--card)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent-light);background:var(--card-hover)}
.btn-ghost{color:var(--text-secondary)}
.btn-ghost:hover{color:var(--accent-light)}

/* showcase */
.showcase-section{padding:60px 0;perspective:1200px}
.showcase-wrapper{max-width:880px;margin:0 auto}
.showcase-window{background:#0a0e1a;border:1px solid rgba(255,255,255,.1);border-radius:14px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.5);transition:transform .12s}
:root[data-theme="light"] .showcase-window{background:#fff;box-shadow:0 30px 80px rgba(0,0,0,.15)}
.win-titlebar{padding:10px 14px;background:rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,.06);display:flex;align-items:center;gap:10px}
:root[data-theme="light"] .win-titlebar{background:#f6f6f6;border-color:#e0e0e0}
.win-dots{display:flex;gap:6px}
.win-dot{width:11px;height:11px;border-radius:50%}
.win-dot--red{background:#ff5f57}.win-dot--yellow{background:#febc2e}.win-dot--green{background:#28c840}
.win-title{font-size:12px;color:#888}
.mock-search-bar{padding:18px 20px;display:flex;align-items:center;gap:10px;font-size:15px;color:var(--text-secondary);border-bottom:1px solid rgba(255,255,255,.06)}
.mock-search-bar .cursor{display:inline-block;width:1px;height:16px;background:var(--accent-light);animation:blink 1s infinite}
@keyframes blink{0%,50%{opacity:1}51%,100%{opacity:0}}
.mock-results .mock-result-item{display:flex;align-items:center;gap:14px;padding:12px 20px;cursor:default;transition:background var(--transition-fast);border-left:3px solid transparent}
.mock-results .mock-result-item:hover,.mock-results .mock-result-item.active{background:rgba(0,120,212,.1);border-left-color:var(--accent)}
.mock-result-icon{width:32px;height:32px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:18px;background:rgba(255,255,255,.06)}
.mock-result-name{font-size:14px;color:var(--text)}
.mock-result-path{font-size:12px;color:var(--text-muted);margin-top:2px}

/* 章节 */
.section{padding:80px 0;position:relative}
.section-head{text-align:center;margin-bottom:48px}
.section-label{display:inline-block;padding:4px 12px;border:1px solid var(--border);border-radius:100px;font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:2px;margin-bottom:14px;background:var(--card)}
.section h2{font-size:clamp(28px,4vw,42px);font-weight:700;letter-spacing:-1px;margin-bottom:10px}
.section-desc{color:var(--text-secondary);font-size:15px;max-width:640px;margin:0 auto}

/* features grid */
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.feature-card{position:relative;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;transition:all var(--transition);overflow:hidden;backdrop-filter:blur(8px)}
.feature-card::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(0,120,212,.06) 0%,transparent 100%);opacity:0;transition:opacity var(--transition)}
.feature-card:hover::before{opacity:1}
.feature-card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 20px 40px rgba(0,120,212,.15)}
.feature-card .icon{font-size:30px;margin-bottom:12px;display:inline-block}
.feature-card h4{font-size:16px;font-weight:700;margin-bottom:8px;color:var(--text)}
.feature-card p{font-size:13px;color:var(--text-secondary);line-height:1.6}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.gallery-item{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--card);border:1px solid var(--border);aspect-ratio:16/10;cursor:pointer;transition:all var(--transition)}
.gallery-item:hover{border-color:var(--accent);transform:scale(1.02)}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.gallery-item:hover img{transform:scale(1.08)}
.gallery-cap{position:absolute;left:0;right:0;bottom:0;padding:14px 16px;background:linear-gradient(180deg,transparent,rgba(0,0,0,.85));color:#fff;font-size:13px;transform:translateY(20px);opacity:0;transition:all var(--transition)}
.gallery-item:hover .gallery-cap{transform:translateY(0);opacity:1}

/* lightbox */
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.95);display:flex;align-items:center;justify-content:center;z-index:200;padding:30px;cursor:zoom-out}
.lightbox img{max-width:100%;max-height:90vh;border-radius:8px}
.lightbox-close{position:absolute;top:20px;right:20px;font-size:32px;color:#fff}

/* pricing */
.pricing{display:flex;justify-content:center;gap:24px;flex-wrap:wrap}
.pricing-card{position:relative;width:340px;padding:40px 32px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);transition:all var(--transition);text-align:center;backdrop-filter:blur(8px)}
.pricing-card:hover{border-color:var(--border-hover);transform:translateY(-6px)}
.pricing-card.featured{border-color:var(--accent);transform:scale(1.05)}
.pricing-card.featured:hover{transform:scale(1.05) translateY(-6px)}
.pricing-card .badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--accent),var(--accent-light));color:#fff;padding:5px 16px;border-radius:100px;font-size:11px;font-weight:700;letter-spacing:1px}
.pricing-card h4{font-size:22px;color:var(--text);margin-bottom:8px;margin-top:8px}
.pricing-card .price{font-size:46px;font-weight:800;color:var(--text);margin:20px 0 4px;letter-spacing:-1px;background:linear-gradient(135deg,var(--accent),var(--accent-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.pricing-card .price-unit{font-size:13px;color:var(--text-muted);margin-bottom:28px}
.pricing-card ul{list-style:none;text-align:left;margin-bottom:28px;color:var(--text-secondary);font-size:14px}
.pricing-card ul li{padding:7px 0;line-height:1.5}
.pricing-card ul li::before{content:"✓ ";color:#22c55e;font-weight:700;margin-right:8px}
/* testimonials */
.testimonials{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.testimonial{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:all var(--transition);position:relative}
.testimonial:hover{border-color:var(--accent);transform:translateY(-4px)}
.testimonial::before{content:"❝";position:absolute;top:8px;right:14px;font-size:60px;color:var(--accent);opacity:.15;line-height:1}
.testimonial-quote{font-size:14px;line-height:1.7;color:var(--text);margin-bottom:18px}
.testimonial-author{display:flex;align-items:center;gap:12px;border-top:1px solid var(--border);padding-top:14px}
.testimonial-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-light));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:14px;overflow:hidden}
.testimonial-avatar img{width:100%;height:100%;object-fit:cover}
.testimonial-name{font-weight:600;font-size:14px}
.testimonial-role{font-size:12px;color:var(--text-muted)}
.testimonial-rating{color:#fbbf24;font-size:12px;margin-top:2px}

/* changelog */
.changelog{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.changelog-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:all var(--transition)}
.changelog-item:hover{border-color:var(--accent)}
.changelog-head{display:flex;align-items:baseline;gap:14px;margin-bottom:12px;flex-wrap:wrap}
.changelog-version{font-size:18px;font-weight:700;color:var(--accent-light)}
.changelog-date{font-size:12px;color:var(--text-muted)}
.changelog-summary{color:var(--text);font-size:14px;margin-bottom:10px}
.changelog-list{list-style:none;font-size:13px;color:var(--text-secondary)}
.changelog-list li{padding:3px 0 3px 18px;position:relative}
.changelog-list li::before{content:"•";color:var(--accent);position:absolute;left:0}

/* roadmap */
.roadmap{max-width:880px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media (max-width:760px){.roadmap{grid-template-columns:1fr}}
.roadmap-col{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px}
.roadmap-col h4{font-size:13px;text-transform:uppercase;letter-spacing:1px;color:var(--text-muted);margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid var(--border)}
.roadmap-item{padding:10px 0;border-bottom:1px solid var(--border)}
.roadmap-item:last-child{border-bottom:none}
.roadmap-item-title{font-weight:600;font-size:14px;margin-bottom:4px}
.roadmap-item-desc{font-size:12px;color:var(--text-secondary);line-height:1.5}
.roadmap-item-version{display:inline-block;margin-top:4px;font-size:10px;background:rgba(0,120,212,.15);color:var(--accent-light);padding:1px 6px;border-radius:4px}
.roadmap-col[data-status="in-progress"]{border-color:rgba(245,158,11,.3)}
.roadmap-col[data-status="done"]{border-color:rgba(34,197,94,.3)}

/* faq */
.faq-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:10px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px 22px;transition:all var(--transition);cursor:pointer}
.faq-item:hover{border-color:var(--accent)}
.faq-item summary{font-weight:600;font-size:15px;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"＋";color:var(--accent-light);font-size:20px;transition:transform var(--transition)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{margin-top:12px;color:var(--text-secondary);font-size:14px;line-height:1.7}

/* subscribe */
.subscribe-cta{padding:60px 24px}
.subscribe-card{max-width:560px;margin:0 auto;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:36px;text-align:center;backdrop-filter:blur(8px)}
.subscribe-card h3{font-size:22px;margin-bottom:8px}
.subscribe-card p{color:var(--text-secondary);margin-bottom:20px;font-size:14px}
.subscribe-form{display:flex;gap:8px;max-width:400px;margin:0 auto}
.subscribe-form input{flex:1;padding:11px 16px;border:1px solid var(--border);border-radius:10px;background:var(--card-hover);color:var(--text);font-size:14px;outline:none}
.subscribe-form input:focus{border-color:var(--accent)}
.subscribe-msg{margin-top:10px;font-size:13px;min-height:1em}
.subscribe-msg.success{color:#22c55e}
.subscribe-msg.error{color:#ef4444}

/* cta banner */
.cta-banner{margin:60px 0;padding:60px 32px;text-align:center;background:linear-gradient(135deg,rgba(0,120,212,.1),rgba(100,50,200,.1));border:1px solid var(--border);border-radius:var(--radius-xl);position:relative;overflow:hidden}
.cta-banner::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 50%,var(--orb-1) 0%,transparent 60%);opacity:.5}
.cta-banner h3{font-size:28px;margin-bottom:10px;position:relative}
.cta-banner p{color:var(--text-secondary);margin-bottom:24px;position:relative}
.cta-banner .btn{position:relative}

/* footer */
.footer{margin-top:60px;padding:50px 0 24px;border-top:1px solid var(--border)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
.footer-brand{font-size:24px;font-weight:700;margin-bottom:8px;background:linear-gradient(135deg,var(--accent),var(--accent-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.footer-text{color:var(--text-secondary);font-size:13px;line-height:1.7}
.footer-grid h5{font-size:13px;text-transform:uppercase;letter-spacing:1px;margin-bottom:12px;color:var(--text)}
.footer-grid a{display:block;color:var(--text-secondary);font-size:13px;padding:4px 0}
.footer-grid a:hover{color:var(--accent-light)}
.footer-bottom{padding-top:20px;border-top:1px solid var(--border);text-align:center;color:var(--text-muted);font-size:12px}

/* back to top */
.back-to-top{position:fixed;bottom:24px;right:24px;width:44px;height:44px;border-radius:50%;background:var(--accent);color:#fff;font-size:18px;font-weight:700;box-shadow:0 8px 24px rgba(0,120,212,.4);z-index:30;opacity:0;pointer-events:none;transition:all var(--transition)}
.back-to-top.visible{opacity:1;pointer-events:auto}
.back-to-top:hover{transform:translateY(-2px);background:var(--accent-light)}

/* reveal */
.reveal{opacity:0;transform:translateY(20px);transition:all .6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* products page */
.products-page{padding-bottom:40px}
.products-hero{padding-bottom:72px}
.product-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.product-card,.product-panel,.edition-card,.comparison-card,.download-group{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;backdrop-filter:blur(8px);transition:all var(--transition)}
.product-card:hover,.product-panel:hover,.edition-card:hover,.comparison-card:hover,.download-group:hover{border-color:var(--accent);transform:translateY(-3px)}
.product-card-badge{display:inline-block;padding:4px 10px;border-radius:999px;background:rgba(0,120,212,.14);color:var(--accent-light);font-size:12px;margin-bottom:14px}
.product-card h3{font-size:24px;margin-bottom:8px}
.product-card-subtitle,.product-panel-subtitle,.download-group-head p,.edition-summary,.edition-audience,.download-item-meta,.download-item-extra,.product-target{color:var(--text-secondary)}
.product-card-intro{margin:14px 0 20px;color:var(--text)}
.product-panel{display:grid;grid-template-columns:minmax(0,2fr) minmax(280px,1fr);gap:24px;align-items:start}
.feature-bullets{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:20px}
.feature-bullet{padding:18px;border-radius:var(--radius);background:var(--card-hover);border:1px solid var(--border)}
.feature-bullet h4{font-size:15px;margin-bottom:6px}
.feature-bullet p{font-size:13px;color:var(--text-secondary);line-height:1.7}
.callout-card{padding:20px;border-radius:var(--radius);background:linear-gradient(135deg,rgba(0,120,212,.12),rgba(100,50,200,.08));border:1px solid var(--border)}
.callout-card h3{margin-bottom:10px}
.callout-card p{color:var(--text-secondary);font-size:14px}
.edition-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-bottom:24px}
.edition-card h3{font-size:22px;margin-bottom:10px}
.edition-feature-list{margin-top:16px;padding-left:18px;color:var(--text-secondary)}
.edition-feature-list li{margin:6px 0}
.comparison-table-wrap{overflow:auto;margin-top:16px}
.comparison-table{width:100%;border-collapse:collapse;font-size:14px}
.comparison-table th,.comparison-table td{padding:12px 14px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}
.comparison-table th{color:var(--text);font-size:13px;text-transform:uppercase;letter-spacing:1px}
.download-groups{display:flex;flex-direction:column;gap:20px}
.download-group-head{margin-bottom:18px}
.download-group-head h3{font-size:24px;margin-bottom:4px}
.download-section-list{display:grid;grid-template-columns:1fr;gap:16px}
.download-section-card{padding:20px;border-radius:var(--radius);background:var(--card-hover);border:1px solid var(--border)}
.download-section-card h4{margin-bottom:14px}
.download-items{display:flex;flex-direction:column;gap:12px}
.download-item{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px;border-radius:12px;background:rgba(255,255,255,.02);border:1px solid var(--border)}
.download-item-title{font-weight:700;margin-bottom:4px}
.download-item-meta,.download-item-extra{font-size:13px}
.download-item-extra{margin-top:4px;color:var(--text-muted)}
.topo-download-layout{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.compact-download-item{align-items:center}
.advanced-apply-box p{color:var(--text-secondary);font-size:14px;line-height:1.8;margin-bottom:14px}
.advanced-apply-points{padding-left:18px;color:var(--text-secondary);margin:0 0 18px}
.advanced-apply-points li{margin:6px 0}
.advanced-apply-card{max-width:560px}
.advanced-apply-intro{padding:16px;border-radius:12px;background:var(--card-hover);border:1px solid var(--border);margin-bottom:18px}
.advanced-apply-intro p{margin:0 0 8px}
.advanced-steps{display:flex;flex-direction:column;gap:12px;margin-bottom:18px}
.advanced-step{display:flex;gap:12px;align-items:flex-start;padding:14px;border-radius:12px;background:rgba(255,255,255,.02);border:1px solid var(--border)}
.advanced-step span{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-light));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;flex:none}
.advanced-step p{margin:4px 0 0;color:var(--text-secondary);font-size:13px;line-height:1.7}
.advanced-payment-note{margin-bottom:16px;padding:12px 14px;border-radius:10px;background:rgba(0,120,212,.08);border:1px solid rgba(0,120,212,.18);color:var(--text-secondary);font-size:13px;line-height:1.7}
.empty-note{color:var(--text-secondary);font-size:14px}

/* responsive */
@media (max-width:880px){
    .nav-links{display:none}
    .nav-mobile{display:block}
    body.nav-open .nav-links{display:flex;position:absolute;top:64px;right:24px;flex-direction:column;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:12px;backdrop-filter:blur(20px)}
    .hero-stats{grid-template-columns:repeat(2,1fr);gap:16px;padding-top:24px;margin-top:30px}
    .pricing-card{width:100%;max-width:380px}
    .pricing-card.featured{transform:none}
    .pricing-card.featured:hover{transform:translateY(-6px)}
    .product-panel{grid-template-columns:1fr}
    .download-item{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
}

/* apply modal */
.apply-modal{position:fixed;inset:0;z-index:120;display:flex;align-items:center;justify-content:center;padding:20px;animation:fadeIn .2s}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.apply-modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.7);backdrop-filter:blur(6px)}
.apply-modal-card{position:relative;background:var(--bg-mid);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;max-width:480px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:0 30px 80px rgba(0,0,0,.5)}
:root[data-theme="light"] .apply-modal-card{background:#fff}
.apply-modal-card h3{font-size:22px;margin-bottom:6px}
.apply-modal-desc{color:var(--text-secondary);font-size:13px;margin-bottom:20px}
.apply-modal-close{position:absolute;top:14px;right:18px;width:32px;height:32px;border-radius:50%;font-size:22px;color:var(--text-secondary);transition:all var(--transition-fast)}
.apply-modal-close:hover{background:var(--card);color:var(--text)}
.apply-row{margin-bottom:14px}
.apply-row label{display:block;font-size:13px;color:var(--text-secondary);margin-bottom:6px}
.apply-row input,.apply-row textarea,.apply-row select{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:8px;background:var(--card);color:var(--text);font-family:inherit;font-size:14px;outline:none;transition:border-color var(--transition-fast)}
.apply-row input:focus,.apply-row textarea:focus,.apply-row select:focus{border-color:var(--accent)}
.apply-row textarea{min-height:80px;resize:vertical}
.apply-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:18px}
.apply-msg{margin-top:12px;font-size:13px;text-align:center;min-height:1em}
.apply-msg.success{color:#22c55e}
.apply-msg.error{color:#ef4444}