:root{--primary:#7C3AED;--g1:#6D28D9;--g2:#A855F7;--gradient:linear-gradient(135deg,var(--g1),var(--g2));--accent:#C084FC;--heading:#1F1145;--ink:#2E1A54;--muted:#6E5C92;--bg:#F8F4FE;--bg-alt:#EFE7FB;--line:#E2D6F4;--band:#491B92;--band2:#7C3AED;--band-text:#F1E9FF;--radius:18px;--radius-sm:calc(var(--radius) * .6);--shadow:0 14px 34px rgba(124,58,237,.16);--shadow-h:0 22px 48px rgba(124,58,237,.24);--wrap:1200px;}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;font-size:15px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{color:var(--heading);line-height:1.25;font-weight:800}
.fsxiantao-wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.fsxiantao-main{display:block}
.fsxiantao-sec{padding:64px 0}
.fsxiantao-sec--alt{background:var(--bg-alt)}
.fsxiantao-sec__inner{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.fsxiantao-sec__head{text-align:center;max-width:760px;margin:0 auto 36px}
.fsxiantao-sec__head--left{text-align:left;margin-left:0}
.fsxiantao-sec__eyebrow{display:inline-block;font-size:13px;letter-spacing:.18em;color:var(--primary);font-weight:700;margin-bottom:10px}
.fsxiantao-sec__title{font-size:clamp(22px,3vw,30px)}
.fsxiantao-sec__lead{color:var(--muted);margin-top:12px;font-size:15px}
.fsxiantao-btn{display:inline-flex;align-items:center;gap:6px;padding:11px 22px;border-radius:var(--radius);font-weight:700;font-size:14px;cursor:pointer;border:1px solid transparent;transition:.2s}
.fsxiantao-btn--primary{background:var(--gradient);color:#fff}
.fsxiantao-btn--primary:hover{box-shadow:var(--shadow-h);transform:translateY(-2px)}
.fsxiantao-btn--ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5)}
.fsxiantao-btn--light{background:#fff;color:var(--primary)}
.fsxiantao-btn--outline{border-color:var(--primary);color:var(--primary);background:transparent}
.fsxiantao-btn--lg{padding:14px 30px;font-size:16px}
.fsxiantao-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:.2s}
.fsxiantao-card:hover{box-shadow:var(--shadow-h);transform:translateY(-3px)}
.fsxiantao-seemore{text-align:center;margin-top:30px}
.fsxiantao-metrics{padding:0}
.fsxiantao-metrics__inner{max-width:var(--wrap);margin:-34px auto 0;padding:22px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative;z-index:3}
.fsxiantao-metrics__item{text-align:center}
.fsxiantao-metrics__num{font-size:clamp(24px,3vw,34px);font-weight:800;color:var(--primary)}
.fsxiantao-metrics__unit{font-size:15px;margin-left:2px}
.fsxiantao-metrics__label{color:var(--muted);font-size:13px;margin-top:4px}
.fsxiantao-banner img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow)}
.fsxiantao-about{display:grid;grid-template-columns:1.3fr .9fr;gap:36px;align-items:start}
.fsxiantao-about__lead{font-size:16px;margin-bottom:14px}
.fsxiantao-about__full{max-height:260px;overflow:hidden;position:relative;-webkit-mask-image:linear-gradient(180deg,#000 76%,transparent);mask-image:linear-gradient(180deg,#000 76%,transparent)}
.fsxiantao-about__full--open{max-height:none;-webkit-mask-image:none;mask-image:none}
.fsxiantao-about__full p{margin-bottom:10px;color:var(--ink)}
.fsxiantao-about__full img{display:none}
.fsxiantao-about__toggle{margin-top:10px}
.fsxiantao-about__btn{display:inline-flex;align-items:center;gap:3px;border:0;background:none;color:var(--primary);font-weight:700;cursor:pointer;font-size:14px;padding:2px 0}
.fsxiantao-about__link{margin-top:14px}
.fsxiantao-about__aside-title{font-size:18px;margin-bottom:16px;color:var(--heading)}
.fsxiantao-timeline{border-left:2px solid var(--line);padding-left:18px;display:flex;flex-direction:column;gap:16px}
.fsxiantao-timeline__item{position:relative}
.fsxiantao-timeline__item::before{content:"";position:absolute;left:-25px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 3px var(--bg-alt)}
.fsxiantao-timeline__year{display:block;font-weight:800;color:var(--primary)}
.fsxiantao-timeline__desc{color:var(--muted);font-size:14px}
.fsxiantao-listrow{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.fsxiantao-listrow__k{font-weight:800;color:var(--primary);min-width:84px}
.fsxiantao-listrow__d{color:var(--muted);font-size:14px}
.fsxiantao-showcase{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.fsxiantao-showcase__item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.fsxiantao-showcase__img{width:100%;height:200px;object-fit:cover}
.fsxiantao-showcase__cap{padding:10px 14px;font-size:14px;color:var(--ink);font-weight:600}
.fsxiantao-chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.fsxiantao-chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 16px;font-size:13px;color:var(--ink)}
.fsxiantao-news{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.fsxiantao-news__item{padding:22px}
.fsxiantao-news__date{font-size:12px;color:var(--accent);font-weight:700}
.fsxiantao-news__title{font-size:17px;margin:8px 0}
.fsxiantao-news__desc{color:var(--muted);font-size:14px}
.fsxiantao-news__more{display:inline-block;margin-top:10px;color:var(--primary);font-size:13px;font-weight:700}
.fsxiantao-faq{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.fsxiantao-faq__item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:4px 20px}
.fsxiantao-faq__item summary{cursor:pointer;font-weight:700;padding:14px 0;color:var(--heading)}
.fsxiantao-faq__body{padding:0 0 16px;color:var(--muted)}
.fsxiantao-citylinks{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.fsxiantao-citylinks__item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;display:flex;flex-direction:column;gap:4px;transition:.2s}
.fsxiantao-citylinks__item:hover{box-shadow:var(--shadow-h);transform:translateY(-2px)}
.fsxiantao-citylinks__item--cur{background:var(--bg-alt)}
.fsxiantao-citylinks__region{font-weight:800;color:var(--heading)}
.fsxiantao-citylinks__site{font-size:13px;color:var(--muted)}
.fsxiantao-citylinks__item--fold{display:none}
.fsxiantao-citylinks--open .fsxiantao-citylinks__item--fold{display:flex}
.fsxiantao-citylinks__toggle{text-align:center;margin-top:16px}
.fsxiantao-citylinks__more{background:transparent;border:1px solid var(--primary);color:var(--primary);border-radius:999px;padding:8px 22px;cursor:pointer;font-weight:700}
.fsxiantao-partners{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.fsxiantao-partners__item{background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 20px;font-weight:600;color:var(--ink);transition:.2s}
.fsxiantao-partners__item:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.fsxiantao-partners__region{color:var(--muted);font-size:12px;margin-left:6px}
.fsxiantao-sec--band{background:var(--band);color:var(--band-text)}
.fsxiantao-cta{text-align:center;max-width:760px;margin:0 auto}
.fsxiantao-sec--band .fsxiantao-sec__eyebrow{color:var(--accent)}
.fsxiantao-sec--band .fsxiantao-sec__title{color:#fff}
.fsxiantao-sec--band .fsxiantao-sec__lead{color:rgba(255,255,255,.85)}
.fsxiantao-sec__phone{display:inline-block;font-size:clamp(28px,5vw,44px);font-weight:800;color:#fff;margin:18px 0}
.fsxiantao-sec__cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.fsxiantao-util{background:var(--band);color:var(--band-text);font-size:13px}
.fsxiantao-util__inner{display:flex;justify-content:space-between;padding:8px 20px}
.fsxiantao-util__phone{color:#fff}
.fsxiantao-footer,.fsxiantao-foot{background:#11161d;color:#cbd5e1}
.fsxiantao-city{background:#0c1117;border-top:1px solid #1f2937;padding:18px 0;font-size:13px}
.fsxiantao-city__inner{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.fsxiantao-city__label{color:#94a3b8;font-weight:700}
.fsxiantao-city__links{display:flex;flex-wrap:wrap;gap:8px}
.fsxiantao-city__link{color:#94a3b8;font-size:12px}
.fsxiantao-city__link--fold{display:none}
.fsxiantao-city__more{background:transparent;border:1px solid #334155;color:#94a3b8;border-radius:999px;padding:4px 12px;cursor:pointer}
.fsxiantao-foot{padding:42px 0 24px}
.fsxiantao-foot__inner{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.fsxiantao-foot__cols{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:30px}
.fsxiantao-foot__brand{font-size:18px;font-weight:800;color:#fff;margin-bottom:10px}
.fsxiantao-foot__site{color:#94a3b8;font-size:13px}
.fsxiantao-foot__text{color:#94a3b8;font-size:14px;margin-bottom:12px}
.fsxiantao-foot__phone{display:inline-block;color:var(--accent);font-weight:800;font-size:18px}
.fsxiantao-foot__title{color:#fff;font-weight:700;margin-bottom:10px}
.fsxiantao-foot__cols a{color:#94a3b8;font-size:14px;line-height:2}
.fsxiantao-foot__notice{border-top:1px solid #1f2937;margin-top:24px;padding-top:18px;color:#94a3b8;font-size:12.5px}
.fsxiantao-foot__copy{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;border-top:1px solid #1f2937;margin-top:18px;padding-top:16px;color:#64748b;font-size:12.5px}
.fsxiantao-foot__links a{color:#94a3b8}
.fsxiantao-callbar{display:none;position:fixed;left:0;right:0;bottom:0;background:var(--band);padding:12px;text-align:center;z-index:60}
.fsxiantao-callbar__btn{color:#fff;font-weight:800;font-size:16px}
.fsxiantao-prod__icon,.fsxiantao-adv__icon{width:46px;height:46px;border-radius:14px;background:var(--bg-alt);color:var(--primary);display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.fsxiantao-prod__icon svg,.fsxiantao-adv__icon svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7}
.fsxiantao-prod__title,.fsxiantao-adv__title{font-size:17px;margin-bottom:6px}
.fsxiantao-prod__desc,.fsxiantao-adv__desc{color:var(--muted);font-size:14px}
.fsxiantao-prod__tag{display:inline-block;margin-top:10px;font-size:12px;color:var(--primary);background:var(--bg-alt);border-radius:999px;padding:3px 10px}
.fsxiantao-prod--cards,.fsxiantao-adv{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.fsxiantao-prod--lines{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.fsxiantao-prod--lines .fsxiantao-prod__num{font-size:30px;font-weight:800;color:var(--primary);opacity:.35;margin-bottom:6px}
.fsxiantao-prod--list,.fsxiantao-adv--list{display:flex;flex-direction:column;gap:0}
.fsxiantao-adv--tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.fsxiantao-tile{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);transition:.2s}
.fsxiantao-tile:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.fsxiantao-pagehead{padding:54px 0;color:var(--band-text)}
.fsxiantao-pagehead__title{font-size:clamp(24px,3.4vw,34px);color:#fff}
.fsxiantao-pagehead__sub{color:rgba(255,255,255,.85);margin-top:6px}
.fsxiantao-crumb{font-size:13px;margin-bottom:10px;color:var(--band-text)}
.fsxiantao-crumb a{color:var(--accent)}
.fsxiantao-aboutpage{max-width:880px}
.fsxiantao-contact{display:grid;grid-template-columns:1fr 1fr;gap:36px}
.fsxiantao-contact__row{margin:8px 0;color:var(--ink)}
.fsxiantao-contact__row a{color:var(--primary);font-weight:700}
.fsxiantao-form{display:flex;flex-direction:column;gap:12px}
.fsxiantao-input{border:1px solid var(--line);border-radius:var(--radius-sm);padding:11px 14px;font-size:14px;font-family:inherit}
.fsxiantao-textarea{min-height:110px;resize:vertical}
.fsxiantao-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}
.fsxiantao-step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.fsxiantao-step__num{font-size:26px;font-weight:800;color:var(--primary);opacity:.4}
.fsxiantao-step__txt{color:var(--ink);margin-top:6px;font-size:14px}
.fsxiantao-newsdetail{display:grid;grid-template-columns:1fr 300px;gap:36px;align-items:start}
.fsxiantao-post__meta{color:var(--muted);font-size:13px;margin-bottom:12px}
.fsxiantao-post__thumb{width:100%;border-radius:var(--radius);margin-bottom:18px}
.fsxiantao-post__body{color:var(--ink)}
.fsxiantao-post__body p{margin-bottom:12px}
.fsxiantao-sidepanel{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.fsxiantao-sidepanel__title{font-size:16px;margin-bottom:12px}
.fsxiantao-sidepanel__list{list-style:none;display:flex;flex-direction:column;gap:8px}
.fsxiantao-sidepanel__list li{display:flex;justify-content:space-between;gap:8px;font-size:13.5px;border-bottom:1px dashed var(--line);padding-bottom:8px}
.fsxiantao-sidepanel__list a{color:var(--ink)}
.fsxiantao-sidepanel__empty{color:var(--muted);font-size:13px}
.fsxiantao-sidepanel__more{display:inline-block;margin-top:10px;color:var(--primary);font-weight:700;font-size:13px}
.fsxiantao-plist{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.fsxiantao-plist__item{padding:0;overflow:hidden}
.fsxiantao-plist__img,.fsxiantao-plist__ph{width:100%;height:200px;object-fit:cover;background:var(--bg-alt)}
.fsxiantao-plist__ph{display:flex}
.fsxiantao-plist__ph{stroke:var(--line);fill:none}
.fsxiantao-plist__body{padding:16px}
.fsxiantao-plist__title{font-size:16px}
.fsxiantao-plist__desc{color:var(--muted);font-size:13px;margin-top:6px}
.fsxiantao-prodhero{background:var(--bg-alt);padding:48px 0}
.fsxiantao-prodhero__inner{display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;align-items:center}
.fsxiantao-prodhero__media img,.fsxiantao-prodhero__ph{width:100%;border-radius:var(--radius);box-shadow:var(--shadow);background:#fff}
.fsxiantao-prodhero__ph{height:320px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-weight:800;font-size:22px}
.fsxiantao-prodhero__kicker{color:var(--primary);font-weight:700;font-size:13px}
.fsxiantao-prodhero__title{font-size:clamp(24px,3vw,32px);margin:8px 0}
.fsxiantao-prodhero__desc{color:var(--muted);margin-bottom:16px}
.fsxiantao-prodhero__rows{list-style:none;display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.fsxiantao-prodhero__rows li{display:flex;justify-content:space-between;border-bottom:1px dashed var(--line);padding-bottom:8px}
.fsxiantao-prodhero__rows span{color:var(--muted)}
.fsxiantao-prodhero__cta{display:flex;gap:12px;flex-wrap:wrap}
.fsxiantao-prodshow{display:grid;grid-template-columns:1fr 300px;gap:36px;align-items:start}
.fsxiantao-prodshow__list{list-style:none;display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.fsxiantao-prodshow__list li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:13.5px}
.pagination{display:flex;gap:8px;justify-content:center;margin-top:24px;flex-wrap:wrap}
.pagination a,.pagination span{padding:7px 13px;border:1px solid var(--line);border-radius:8px;color:var(--ink);font-size:13px}
.pagination .current{background:var(--primary);color:#fff;border-color:var(--primary)}
@media(max-width:960px){.fsxiantao-about,.fsxiantao-news,.fsxiantao-prod--cards,.fsxiantao-prod--lines,.fsxiantao-prod--list,.fsxiantao-adv,.fsxiantao-showcase,.fsxiantao-plist,.fsxiantao-contact,.fsxiantao-newsdetail,.fsxiantao-prodhero__inner,.fsxiantao-prodshow{grid-template-columns:1fr}.fsxiantao-metrics__inner{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.fsxiantao-callbar{display:block}.fsxiantao-news,.fsxiantao-prod--cards,.fsxiantao-prod--lines,.fsxiantao-showcase,.fsxiantao-plist{grid-template-columns:1fr}.fsxiantao-foot__cols{grid-template-columns:1fr}}

.fsxiantao-util{border-bottom:1px solid var(--line)}
.fsxiantao-topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);border-bottom:1px solid var(--line)}
.fsxiantao-topbar__inner{display:flex;align-items:center;justify-content:space-between;padding:12px 20px}
.fsxiantao-brand{display:flex;align-items:center;gap:12px}
.fsxiantao-brand__logo img{height:36px}
.fsxiantao-brand__title{display:flex;flex-direction:column;line-height:1.15}
.fsxiantao-brand__name{font-size:18px;font-weight:800;color:var(--heading)}
.fsxiantao-brand__meta{font-size:12px;color:var(--muted)}
.fsxiantao-brand__meta b{color:var(--primary)}
.fsxiantao-topbar__cta{margin-left:auto;margin-right:10px}
.fsxiantao-burger{display:none;flex-direction:column;gap:4px;background:none;border:0;cursor:pointer;padding:8px}
.fsxiantao-burger span{width:22px;height:2px;background:var(--heading)}
.fsxiantao-sub{position:sticky;top:60px;z-index:40;background:var(--band);color:var(--band-text)}
.fsxiantao-sub__inner{display:flex;gap:4px;padding:10px 20px;overflow-x:auto}
.fsxiantao-sub__link{color:rgba(255,255,255,.85);font-size:14px;font-weight:600;padding:6px 14px;border-radius:999px;white-space:nowrap}
.fsxiantao-sub__link:hover{background:rgba(255,255,255,.15)}
.fsxiantao-drawer{position:fixed;top:0;right:-100%;width:78%;max-width:320px;height:100%;background:#fff;z-index:80;box-shadow:-8px 0 30px rgba(0,0,0,.2);padding:20px;transition:.3s;overflow:auto}
.fsxiantao-drawer--open{right:0}
.fsxiantao-drawer__head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;font-weight:800}
.fsxiantao-drawer__close{background:none;border:0;font-size:24px;cursor:pointer}
.fsxiantao-drawer__nav{display:flex;flex-direction:column;gap:6px}
.fsxiantao-drawer__link{padding:12px;border-radius:10px;background:var(--bg-alt);font-weight:600}
.fsxiantao-drawer__tel{display:block;margin-top:16px;text-align:center;background:var(--gradient);color:#fff;padding:12px;border-radius:10px;font-weight:700}
.fsxiantao-scrim{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:70}
.fsxiantao-scrim--open{display:block}
.fsxiantao-hero{padding:90px 0 50px}
.fsxiantao-hero--slogan .fsxiantao-hero__inner{max-width:880px;margin:0 auto;padding:0 20px}
.fsxiantao-hero__badge{display:inline-block;background:var(--bg-alt);color:var(--primary);font-weight:700;padding:6px 16px;border-radius:999px;font-size:13px}
.fsxiantao-hero__title{font-size:clamp(46px,9vw,84px);margin:18px 0;letter-spacing:-.03em;font-weight:900;line-height:1.05}
.fsxiantao-hero__sub{font-size:19px;color:var(--ink);max-width:680px}
.fsxiantao-hero__meta{color:var(--muted);margin:16px 0 24px}
.fsxiantao-hero__actions{display:flex;gap:14px;flex-wrap:wrap}
.fsxiantao-sec{padding:80px 0}
.fsxiantao-about{display:block}
.fsxiantao-about__text{max-width:820px;margin:0 auto}