/* ===================================================
   WPS Office 2026 — Template 03: Blue-Purple Future
   蓝紫渐变未来风 · Deep · Futuristic · Gradient
   =================================================== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
:root{
  --primary:#6366F1;--primary-dark:#4F46E5;--primary-light:rgba(99,102,241,0.12);
  --accent:#06B6D4;--accent2:#8B5CF6;--success:#10B981;--warning:#F59E0B;
  --bg:#07071A;--bg-soft:#0D0D2B;--bg-muted:#12123A;--surface:rgba(99,102,241,0.07);
  --border:rgba(99,102,241,0.18);--border-dark:rgba(99,102,241,0.3);
  --text-h:#F0F0FF;--text-body:#A0A0D0;--text-muted:#8080B0;--text-light:#606090;
  --grad-primary:linear-gradient(135deg,#6366F1 0%,#8B5CF6 50%,#06B6D4 100%);
  --grad-soft:linear-gradient(135deg,rgba(99,102,241,0.15) 0%,rgba(6,182,212,0.1) 100%);
  --shadow-xs:0 1px 3px rgba(0,0,0,0.3);--shadow-sm:0 2px 8px rgba(0,0,0,0.4);
  --shadow-md:0 8px 24px rgba(0,0,0,0.5);--shadow-lg:0 20px 60px rgba(0,0,0,0.6);
  --shadow-blue:0 8px 32px rgba(99,102,241,0.3);
  --radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;
  --transition:all 0.22s cubic-bezier(0.4,0,0.2,1);
  --font:'Inter','Noto Sans SC',-apple-system,BlinkMacSystemFont,sans-serif;
}
body{font-family:var(--font);background:var(--bg);color:var(--text-body);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,h4,h5{color:var(--text-h);font-weight:700;line-height:1.25}
a{color:inherit;text-decoration:none}
p{color:var(--text-body)}
::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:var(--bg-soft)}::-webkit-scrollbar-thumb{background:var(--border-dark);border-radius:3px}
::selection{background:rgba(99,102,241,0.25);color:var(--text-h)}
.container{max-width:1180px;margin:0 auto;padding:0 2rem}

/* NAVBAR */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:transparent;transition:var(--transition);border-bottom:1px solid transparent}
.navbar.scrolled{background:rgba(7,7,26,0.88);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom-color:var(--border)}
.nav-inner{display:flex;align-items:center;height:66px;gap:2rem}
.nav-logo{display:flex;align-items:center;gap:0.5rem;flex-shrink:0}
.logo-icon{width:32px;height:32px;background:var(--grad-primary);border-radius:8px;display:flex;align-items:center;justify-content:center}
.logo-icon svg{width:18px;height:18px}
.logo-text{font-size:1rem;font-weight:800;color:var(--text-h);letter-spacing:-0.02em}
.nav-links{display:flex;align-items:center;gap:0.2rem;flex:1}
.nav-link{padding:0.4rem 0.85rem;color:var(--text-muted);font-size:0.88rem;font-weight:500;border-radius:var(--radius-full);transition:var(--transition)}
.nav-link:hover,.nav-link.active{color:var(--text-h);background:var(--surface)}
.nav-actions{display:flex;align-items:center;gap:0.5rem;flex-shrink:0}
.btn-ghost{padding:0.45rem 1.1rem;border:1px solid var(--border-dark);border-radius:var(--radius-full);font-size:0.88rem;color:var(--text-muted);transition:var(--transition)}
.btn-ghost:hover{color:var(--text-h);border-color:rgba(167,139,250,0.5)}
.btn-primary{padding:0.48rem 1.25rem;background:var(--grad-primary);color:#fff;border-radius:var(--radius-full);font-size:0.88rem;font-weight:700;transition:var(--transition);box-shadow:var(--shadow-blue);border:none;cursor:pointer;display:inline-flex;align-items:center;gap:0.4rem}
.btn-primary:hover{box-shadow:0 8px 32px rgba(99,102,241,0.5);transform:translateY(-1px)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--text-muted);border-radius:2px;transition:var(--transition)}
.nav-links.nav-open{display:flex;position:fixed;top:66px;left:0;right:0;flex-direction:column;background:rgba(7,7,26,0.97);backdrop-filter:blur(20px);padding:1rem;border-bottom:1px solid var(--border);gap:0.25rem;z-index:999}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* GRADIENT TEXT */
.gradient-text{background:var(--grad-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* SECTION HEADER */
.section-header{text-align:center;margin-bottom:3.5rem}
.section-eyebrow{display:inline-flex;align-items:center;gap:0.4rem;padding:0.3rem 0.9rem;background:var(--primary-light);border:1px solid var(--border-dark);border-radius:var(--radius-full);color:rgba(167,139,250,1);font-size:0.78rem;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;margin-bottom:1rem}
.section-title{font-size:clamp(1.8rem,3.5vw,2.8rem);font-weight:900;letter-spacing:-0.03em;color:var(--text-h);margin-bottom:0.75rem}
.section-desc{font-size:1rem;color:var(--text-muted);max-width:560px;margin:0 auto;line-height:1.8}

/* BUTTONS */
.btn-hero-primary{display:inline-flex;align-items:center;gap:0.5rem;padding:0.85rem 2rem;background:var(--grad-primary);color:#fff;border-radius:var(--radius-full);font-size:1rem;font-weight:700;transition:var(--transition);box-shadow:var(--shadow-blue);border:none;cursor:pointer}
.btn-hero-primary:hover{box-shadow:0 12px 40px rgba(99,102,241,0.5);transform:translateY(-2px)}
.btn-hero-ghost{display:inline-flex;align-items:center;gap:0.5rem;padding:0.85rem 2rem;background:var(--surface);color:var(--text-h);border-radius:var(--radius-full);font-size:1rem;font-weight:700;border:1px solid var(--border-dark);transition:var(--transition);cursor:pointer}
.btn-hero-ghost:hover{background:rgba(99,102,241,0.14);transform:translateY(-2px)}
.btn-outline{display:inline-flex;align-items:center;gap:0.4rem;padding:0.65rem 1.5rem;border:1.5px solid var(--border-dark);color:rgba(167,139,250,1);border-radius:var(--radius-full);font-size:0.9rem;font-weight:600;transition:var(--transition);cursor:pointer}
.btn-outline:hover{background:var(--primary-light);border-color:var(--primary)}
.btn-nav-ghost{padding:0.45rem 1.1rem;border:1px solid var(--border-dark);border-radius:var(--radius-full);font-size:0.88rem;color:var(--text-muted);transition:var(--transition)}
.btn-nav-ghost:hover{color:var(--text-h);border-color:rgba(167,139,250,0.5)}
.btn-nav-primary{padding:0.48rem 1.25rem;background:var(--grad-primary);color:#fff;border-radius:var(--radius-full);font-size:0.88rem;font-weight:700;transition:var(--transition);box-shadow:var(--shadow-blue)}
.btn-nav-primary:hover{box-shadow:0 8px 32px rgba(99,102,241,0.5);transform:translateY(-1px)}

/* CARD */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2rem;transition:var(--transition)}
.card:hover{background:rgba(99,102,241,0.14);border-color:var(--border-dark);transform:translateY(-3px);box-shadow:0 8px 32px rgba(99,102,241,0.15)}

/* BADGE */
.badge{display:inline-flex;align-items:center;gap:0.3rem;padding:0.2rem 0.7rem;border-radius:var(--radius-full);font-size:0.75rem;font-weight:700}
.badge-blue{background:var(--primary-light);color:rgba(167,139,250,1)}
.badge-green{background:rgba(16,185,129,0.12);color:var(--success)}
.badge-orange{background:rgba(245,158,11,0.12);color:var(--warning)}

/* FOOTER */
.footer{background:var(--bg-soft);border-top:1px solid var(--border);padding:4rem 0 1.5rem}
.footer-top{display:grid;grid-template-columns:260px 1fr;gap:4rem;margin-bottom:2.5rem;padding-bottom:2.5rem;border-bottom:1px solid var(--border)}
.footer-brand p{font-size:0.88rem;color:var(--text-light);margin-top:0.75rem;line-height:1.7}
.footer-social{display:flex;gap:0.5rem;margin-top:1.25rem}
.social-link{padding:0.35rem 0.85rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-full);font-size:0.78rem;color:var(--text-light);transition:var(--transition)}
.social-link:hover{color:var(--text-h);border-color:var(--border-dark)}
.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem}
.footer-col h4{font-size:0.82rem;font-weight:700;color:var(--text-h);text-transform:uppercase;letter-spacing:0.08em;margin-bottom:1rem}
.footer-col a{display:block;font-size:0.88rem;color:var(--text-light);margin-bottom:0.5rem;transition:var(--transition)}
.footer-col a:hover{color:var(--text-body);transform:translateX(3px)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;font-size:0.82rem;color:var(--text-light)}
.footer-legal{display:flex;gap:1.5rem}
.footer-legal a{color:var(--text-light);transition:var(--transition)}
.footer-legal a:hover{color:var(--text-muted)}

/* RESPONSIVE */
@media(max-width:1024px){.nav-links{display:none}.nav-toggle{display:flex}.footer-top{grid-template-columns:1fr;gap:2rem}.footer-links{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{padding:0 1.25rem}.footer-bottom{flex-direction:column;gap:0.75rem;text-align:center}}

/* Download & Product page overrides */
.dl-hero{padding:120px 0 60px;background:var(--bg-soft);border-bottom:1px solid var(--border);text-align:center}
.dl-hero-card{max-width:520px;margin:0 auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);padding:2rem;box-shadow:0 8px 32px rgba(99,102,241,0.15);text-align:left}
.dl-card-icon{background:var(--primary-light)!important}
.dl-card-btn{background:var(--grad-primary)!important}
.dl-card-btn:hover{box-shadow:var(--shadow-blue)!important}
.platform-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.75rem;transition:var(--transition)}
.platform-card:hover{border-color:var(--border-dark);box-shadow:0 8px 32px rgba(99,102,241,0.15);transform:translateY(-3px)}
.platform-card.recommended{border-color:var(--primary);background:var(--primary-light)}
.ptag{background:rgba(99,102,241,0.1);color:rgba(167,139,250,0.9)}
.platform-card.recommended .ptag{background:rgba(99,102,241,0.2);color:rgba(167,139,250,1)}
.dl-btn{background:var(--grad-primary)!important}
.dl-btn-outline{background:transparent!important;border:1.5px solid var(--border-dark)!important;color:var(--text-body)!important}
.dl-btn-outline:hover{border-color:var(--primary)!important;color:rgba(167,139,250,1)!important;background:var(--primary-light)!important}
.cl-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.75rem}
.cl-tag{background:var(--primary-light);color:rgba(167,139,250,1)}
.type-new{background:rgba(16,185,129,0.12);color:var(--success)}
.type-fix{background:rgba(245,158,11,0.12);color:var(--warning)}
.type-opt{background:var(--primary-light);color:rgba(167,139,250,1)}
.faq-item{border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden}
.faq-q{width:100%;padding:1.1rem 1.5rem;background:none;border:none;text-align:left;font-size:0.95rem;font-weight:600;color:var(--text-h);cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:var(--transition)}
.faq-q:hover{background:var(--surface)}
.faq-item.open .faq-q .arrow{transform:rotate(180deg);color:rgba(167,139,250,1)}
.faq-a{display:none;padding:0 1.5rem 1.1rem;font-size:0.9rem;color:var(--text-muted);line-height:1.75;border-top:1px solid var(--border)}
.faq-item.open .faq-a{display:block}
.dl-cta{padding:5rem 0;background:var(--bg-soft);text-align:center}
.dl-cta h2{color:var(--text-h)}
.dl-cta p{color:var(--text-muted)}
.btn-cta-white{display:inline-flex;align-items:center;gap:0.5rem;padding:0.85rem 2rem;background:var(--grad-primary);color:#fff;border-radius:var(--radius-full);font-size:1rem;font-weight:700;transition:var(--transition);box-shadow:var(--shadow-blue)}
.btn-cta-white:hover{box-shadow:0 12px 40px rgba(99,102,241,0.5);transform:translateY(-2px)}
.prod-hero{padding:120px 0 60px;background:var(--bg-soft);border-bottom:1px solid var(--border);text-align:center}
.prod-nav{position:sticky;top:66px;z-index:100;background:rgba(7,7,26,0.95);backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.prod-pill{padding:0.4rem 1rem;border-radius:var(--radius-full);font-size:0.85rem;font-weight:600;color:var(--text-muted);transition:var(--transition);white-space:nowrap}
.prod-pill:hover,.prod-pill.active{color:rgba(167,139,250,1);background:var(--primary-light)}
.prod-section{padding:6rem 0}
.prod-section:nth-child(even){background:var(--bg-soft)}
.prod-tag{display:inline-flex;align-items:center;gap:0.4rem;padding:0.3rem 0.85rem;background:var(--primary-light);border-radius:var(--radius-full);color:rgba(167,139,250,1);font-size:0.78rem;font-weight:700;margin-bottom:1rem}
.pf-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:1rem}
.pf-box h4{font-size:0.88rem;font-weight:700;color:var(--text-h);margin-bottom:0.3rem}
.pf-box p{font-size:0.8rem;color:var(--text-muted);line-height:1.5}
.prod-visual{background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius-xl);padding:2rem;box-shadow:0 8px 32px rgba(99,102,241,0.15);min-height:300px;display:flex;flex-direction:column}
.vis-bar{display:flex;align-items:center;gap:0.5rem;margin-bottom:1.25rem}
.vis-dot{width:9px;height:9px;border-radius:50%}
.vis-title{flex:1;text-align:center;font-size:0.75rem;color:var(--text-light);font-weight:500}
.vis-line{height:9px;background:var(--border);border-radius:5px;margin-bottom:0.5rem}
.vis-line.h{height:14px;background:rgba(99,102,241,0.3);width:50%}
.vis-line.s{width:35%}.vis-line.m{width:65%}.vis-line.l{width:85%}
.vis-table{border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;margin-top:0.5rem}
.vis-row{display:grid;grid-template-columns:1fr 1fr 1fr}
.vis-cell{padding:0.4rem 0.6rem;font-size:0.72rem;border-bottom:1px solid var(--border);border-right:1px solid var(--border);color:var(--text-body)}
.vis-cell:last-child{border-right:none}
.vis-row:last-child .vis-cell{border-bottom:none}
.vis-row.header .vis-cell{background:var(--bg-muted);font-weight:700;color:var(--text-h)}
.vis-cell.up{color:var(--success);font-weight:600}
.vis-cell.down{color:#EF4444;font-weight:600}
.ai-section{padding:6rem 0;background:var(--bg-soft)}
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;margin-top:3rem}
.ai-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.75rem;transition:var(--transition)}
.ai-card:hover{background:rgba(99,102,241,0.14);border-color:var(--border-dark);transform:translateY(-4px)}
.ai-card-icon{font-size:2rem;margin-bottom:1rem}
.ai-card h3{font-size:1rem;font-weight:800;color:var(--text-h);margin-bottom:0.5rem}
.ai-card p{font-size:0.85rem;color:var(--text-muted);line-height:1.7}
.compare{padding:6rem 0;background:var(--bg)}
.compare-table{width:100%;border-collapse:collapse;margin-top:3rem;background:var(--surface);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm)}
.compare-table th,.compare-table td{padding:1rem 1.25rem;text-align:left;border-bottom:1px solid var(--border);font-size:0.9rem;color:var(--text-body)}
.compare-table th{background:var(--bg-muted);font-weight:700;color:var(--text-h);font-size:0.82rem;text-transform:uppercase;letter-spacing:0.05em}
.compare-table th.highlight{background:var(--grad-primary);color:#fff}
.compare-table td.highlight{background:var(--primary-light);color:rgba(167,139,250,1);font-weight:600}
.compare-table tr:last-child td{border-bottom:none}
.compare-table .check{color:var(--success);font-weight:700}
.compare-table .cross{color:var(--text-light)}
.prod-cta{padding:6rem 0;background:var(--bg-soft);text-align:center}
.prod-cta h2{color:var(--text-h)}
.prod-cta p{color:var(--text-muted)}
.prod-cta-btns{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}
.btn-secondary{display:inline-flex;align-items:center;gap:0.5rem;padding:0.85rem 2rem;background:var(--surface);color:var(--text-h);border-radius:var(--radius-full);font-size:1rem;font-weight:700;transition:var(--transition);border:1px solid var(--border-dark);cursor:pointer}
.btn-secondary:hover{background:rgba(99,102,241,0.14);transform:translateY(-2px)}
.platforms{padding:5rem 0;background:var(--bg)}
.platforms-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;margin-top:3rem}
.changelog{padding:5rem 0;background:var(--bg-soft)}
.changelog-list{max-width:760px;margin:3rem auto 0;display:flex;flex-direction:column;gap:1.5rem}
.cl-header{display:flex;align-items:center;gap:1rem;margin-bottom:1rem}
.cl-version{font-size:1rem;font-weight:800;color:var(--text-h)}
.cl-date{font-size:0.8rem;color:var(--text-light)}
.cl-items{display:flex;flex-direction:column;gap:0.4rem}
.cl-entry{display:flex;align-items:flex-start;gap:0.5rem;font-size:0.88rem;color:var(--text-body)}
.cl-entry .type{font-size:0.72rem;font-weight:700;padding:0.15rem 0.5rem;border-radius:var(--radius-full);flex-shrink:0;margin-top:0.1rem}
.faq{padding:5rem 0;background:var(--bg)}
.faq-list{max-width:720px;margin:3rem auto 0;display:flex;flex-direction:column;gap:0.75rem}
@media(max-width:900px){.platforms-grid{grid-template-columns:repeat(2,1fr)}.ai-grid{grid-template-columns:1fr 1fr}.prod-feats{grid-template-columns:1fr}}
@media(max-width:600px){.platforms-grid{grid-template-columns:1fr}.ai-grid{grid-template-columns:1fr}}
.prod-layout{display:grid;grid-template-columns:1fr 1fr;gap:5rem;align-items:center}
.prod-layout.reverse{direction:rtl}
.prod-layout.reverse>*{direction:ltr}
.prod-feats{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1.75rem}
.prod-section h2{font-size:clamp(1.8rem,3vw,2.5rem);font-weight:900;letter-spacing:-0.03em;color:var(--text-h);margin-bottom:1rem;line-height:1.2}
.prod-section p{font-size:0.95rem;color:var(--text-muted);line-height:1.8;margin-bottom:1.75rem}
.prod-nav-inner{display:flex;gap:0.25rem;padding:0.75rem 0;overflow-x:auto}
.prod-hero h1{font-size:clamp(2.2rem,4.5vw,3.5rem);font-weight:900;letter-spacing:-0.04em;margin-bottom:1rem}
.prod-hero p{font-size:1.05rem;color:var(--text-muted);max-width:560px;margin:0 auto 2rem}
.prod-hero-btns{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;margin-bottom:3rem}
.prod-stats{display:flex;justify-content:center;gap:3rem;flex-wrap:wrap;padding:2rem 0 0;border-top:1px solid var(--border)}
.prod-stat .num{font-size:2rem;font-weight:900;color:var(--text-h);letter-spacing:-0.03em}
.prod-stat .num span{color:rgba(167,139,250,1);font-size:1.2rem}
.prod-stat .lbl{font-size:0.82rem;color:var(--text-light)}
@media(max-width:900px){.prod-layout{grid-template-columns:1fr;gap:2rem}.prod-layout.reverse{direction:ltr}}