/* 91网外部 CSS：现代、活力、科技未来感，适配 PC 与移动端 */
:root{
  --bg:#070b20;--panel:#10183f;--panel-2:#172055;--text:#eef4ff;--muted:#aebce7;--primary:#39dedb;--accent:#ffca66;--pink:#ff6fae;--line:rgba(255,255,255,.13);--card:rgba(255,255,255,.08);--shadow:0 22px 70px rgba(0,0,0,.28);--radius:28px;--max:1180px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:radial-gradient(circle at 20% 0%,rgba(57,222,219,.22),transparent 32%),radial-gradient(circle at 82% 8%,rgba(255,111,174,.18),transparent 30%),linear-gradient(180deg,#070b20 0%,#0c1233 48%,#070b20 100%);line-height:1.72;}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input{font:inherit}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(18px);background:rgba(7,11,32,.74);border-bottom:1px solid var(--line)}.nav-shell{max-width:var(--max);margin:auto;display:flex;align-items:center;justify-content:space-between;gap:22px;padding:14px 22px}.brand-logo,.footer-logo{display:inline-flex;align-items:center;gap:11px;font-weight:900;letter-spacing:.04em}.brand-logo img,.footer-logo img{border-radius:16px;box-shadow:0 0 0 1px rgba(255,255,255,.12),0 10px 30px rgba(57,222,219,.22)}.main-nav{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.main-nav a{padding:9px 13px;border:1px solid transparent;border-radius:999px;color:var(--muted);font-weight:700}.main-nav a:hover,.main-nav a.is-active{border-color:rgba(57,222,219,.45);background:rgba(57,222,219,.12);color:#fff}.nav-toggle{display:none;border:1px solid var(--line);background:rgba(255,255,255,.06);color:#fff;border-radius:14px;padding:8px 12px}.search-row{max-width:var(--max);margin:0 auto 14px;padding:0 22px 14px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px}.search-row input{min-width:0;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.08);color:#fff;border-radius:18px;padding:13px 16px;outline:none}.search-row input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(57,222,219,.1)}.search-row button,.btn{border:0;border-radius:18px;padding:13px 20px;font-weight:900;color:#071126;background:linear-gradient(135deg,var(--primary),#8df7ff);cursor:pointer;box-shadow:0 12px 30px rgba(57,222,219,.22)}.search-hint{grid-column:1/-1;margin:0;color:var(--muted);font-size:.92rem}.hero{position:relative;overflow:hidden}.hero::before{content:"";position:absolute;inset:-20%;background:conic-gradient(from 180deg,rgba(57,222,219,.22),transparent,rgba(255,111,174,.18),transparent,rgba(255,202,102,.16));filter:blur(48px);animation:spinGlow 16s linear infinite}.hero-inner{position:relative;max-width:var(--max);margin:auto;padding:78px 22px 52px;display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#c8f8ff;border:1px solid rgba(57,222,219,.38);background:rgba(57,222,219,.11);border-radius:999px;padding:7px 12px;font-weight:800}.hero h1{font-size:clamp(2.35rem,6vw,5.7rem);line-height:1.02;margin:18px 0;background:linear-gradient(135deg,#fff,#9ffcff 48%,#ffdf9b);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-.06em}.hero p{font-size:1.12rem;color:var(--muted);max-width:720px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}.btn.secondary{background:rgba(255,255,255,.08);color:#fff;border:1px solid var(--line);box-shadow:none}.hero-card{position:relative;border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.06));border-radius:38px;padding:16px;box-shadow:var(--shadow);transform:perspective(900px) rotateY(-4deg);animation:floatCard 6s ease-in-out infinite}.hero-card img{border-radius:28px}.metric-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.metric-strip span{background:rgba(255,255,255,.08);border:1px solid var(--line);border-radius:20px;padding:12px;text-align:center;color:var(--muted)}.metric-strip strong{display:block;color:#fff;font-size:1.25rem}.section{max-width:var(--max);margin:auto;padding:62px 22px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:22px;margin-bottom:24px}.section h2{font-size:clamp(1.8rem,3.7vw,3.3rem);line-height:1.1;margin:0;letter-spacing:-.04em}.section h3{margin:0 0 10px;font-size:1.3rem}.section p{color:var(--muted)}.pill{display:inline-flex;align-items:center;gap:8px;border-radius:999px;padding:6px 11px;background:rgba(255,255,255,.08);border:1px solid var(--line);color:#cdd8ff;font-weight:800;font-size:.9rem}.grid{display:grid;gap:18px}.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{position:relative;overflow:hidden;border:1px solid var(--line);background:var(--card);border-radius:var(--radius);padding:24px;box-shadow:0 12px 34px rgba(0,0,0,.14);transition:transform .25s ease,border-color .25s ease,background .25s ease}.card:hover{transform:translateY(-5px);border-color:rgba(57,222,219,.46);background:rgba(255,255,255,.11)}.story-card{min-height:260px}.story-card::after{content:"";position:absolute;right:-60px;bottom:-60px;width:180px;height:180px;border-radius:50%;background:rgba(57,222,219,.18)}.video-card{padding:0}.video-wrap{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:var(--radius) var(--radius) 0 0;background:#0b1130}.video-wrap video,.video-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease,filter .35s ease}.video-card:hover .video-wrap img,.video-card:hover .video-wrap video{transform:scale(1.06);filter:saturate(1.16) brightness(.86)}.play-mark{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.9);width:72px;height:72px;border-radius:50%;background:rgba(255,255,255,.88);display:grid;place-items:center;opacity:.72;transition:.25s ease}.play-mark::before{content:"";border-left:19px solid #111845;border-top:13px solid transparent;border-bottom:13px solid transparent;margin-left:5px}.video-card:hover .play-mark{opacity:1;transform:translate(-50%,-50%) scale(1.06)}.video-body{padding:20px}.tag-row,.stat-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.tag-row span{padding:5px 9px;border-radius:999px;background:rgba(57,222,219,.12);color:#c8fcff;border:1px solid rgba(57,222,219,.26);font-size:.84rem;font-weight:800}.stat-row span{padding:5px 9px;border-radius:999px;background:rgba(255,255,255,.08);color:var(--muted);font-size:.84rem}.timeline{counter-reset:step;display:grid;gap:14px}.timeline .card{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start}.timeline .card::before{counter-increment:step;content:"0" counter(step);display:grid;place-items:center;width:46px;height:46px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#08112f;font-weight:900}.case-card img{border-radius:22px;margin:-8px -8px 18px;width:calc(100% + 16px)}.quote{font-size:1.02rem;color:#fff}.avatar{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),var(--pink));color:#071126;font-weight:900}.review-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}.faq details{border:1px solid var(--line);border-radius:22px;background:rgba(255,255,255,.07);padding:18px}.faq details+details{margin-top:12px}.faq summary{cursor:pointer;font-weight:900;color:#fff}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.map-card img{border-radius:24px;border:1px solid var(--line)}.form-mock{display:grid;gap:12px}.form-mock input,.form-mock textarea{width:100%;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.08);color:#fff;padding:12px 14px}.notice{border:1px solid rgba(255,202,102,.34);background:rgba(255,202,102,.1);border-radius:24px;padding:18px;color:#ffe7b1}.breadcrumb{max-width:var(--max);margin:26px auto 0;padding:0 22px;color:var(--muted);font-size:.94rem}.breadcrumb a{color:#c8fcff}.page-hero{max-width:var(--max);margin:auto;padding:56px 22px 22px}.page-hero h1{font-size:clamp(2.2rem,5vw,4.6rem);line-height:1.06;margin:16px 0;background:linear-gradient(135deg,#fff,#9ffcff,#ffdf9b);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-.05em}.site-footer{border-top:1px solid var(--line);background:rgba(5,8,24,.9);margin-top:60px}.footer-grid{max-width:var(--max);margin:auto;padding:44px 22px;display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:28px}.footer-grid a{display:block;color:var(--muted);margin:7px 0}.footer-grid h3{margin:0 0 10px}.qr-row{display:flex;gap:12px}.qr-row img{width:104px;border-radius:18px}.qr-row figcaption{text-align:center;color:var(--muted);font-size:.84rem}.domain-chip{color:#071126;background:#9ffcff;border-radius:999px;padding:2px 8px;font-weight:900}.marquee{overflow:hidden;border:1px solid var(--line);border-radius:24px;background:rgba(255,255,255,.06)}.marquee-track{display:flex;gap:24px;white-space:nowrap;animation:marquee 22s linear infinite;padding:14px}.marquee-track span{color:#c8fcff;font-weight:900}.image-desc{font-size:.9rem;color:var(--muted);margin-top:9px}.mini-list{display:grid;gap:10px}.mini-list li{padding:12px 14px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.06);color:var(--muted)}@keyframes spinGlow{to{transform:rotate(360deg)}}@keyframes floatCard{0%,100%{transform:perspective(900px) rotateY(-4deg) translateY(0)}50%{transform:perspective(900px) rotateY(-2deg) translateY(-12px)}}@keyframes marquee{to{transform:translateX(-50%)}}@media (max-width:920px){.hero-inner,.grid.cols-2,.grid.cols-3,.grid.cols-4,.contact-grid,.footer-grid{grid-template-columns:1fr}.section-head{display:block}.hero-card{transform:none}.main-nav{display:none;position:absolute;left:16px;right:16px;top:70px;padding:12px;border:1px solid var(--line);border-radius:22px;background:rgba(9,14,40,.96)}.main-nav.is-open{display:grid}.nav-toggle{display:inline-block}.search-row{grid-template-columns:1fr}.footer-grid{gap:18px}.qr-row{flex-wrap:wrap}}@media (max-width:560px){.nav-shell{padding:12px 16px}.section,.hero-inner,.page-hero{padding-left:16px;padding-right:16px}.hero-inner{padding-top:52px}.card{padding:18px}.video-body{padding:16px}.metric-strip{grid-template-columns:1fr}.search-row{padding-left:16px;padding-right:16px}.footer-grid{padding-left:16px;padding-right:16px}.hero-actions .btn{width:100%;text-align:center}.timeline .card{grid-template-columns:1fr}.timeline .card::before{width:42px;height:42px}}