*,
*::before,
*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;color:#101820;background:radial-gradient(circle at top left,rgba(43,176,118,.14),transparent 22%),radial-gradient(circle at top right,rgba(75,101,207,.14),transparent 24%),linear-gradient(180deg,#ffffff 0%,#f3f8ff 100%)}
img{display:block;max-width:100%;height:auto}
a,button{-webkit-tap-highlight-color:transparent}
a{text-decoration:none}
button{font:inherit}
body.allplatform-page{--ink:#101820;--panel:#fff;--line:#d8e4ee;--green:#2bb076;--blue:#4b65cf;--yellow:#f5bf3b;--shadow:0 18px 40px rgba(16,24,32,.11)}
.allplatform-header,.allplatform-hero,.allplatform-section,.allplatform-footer{width:min(1360px,calc(100% - 32px));margin:0 auto}
.allplatform-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;position:sticky;top:0;z-index:50;background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(255,255,255,.82));backdrop-filter:blur(10px)}
.allplatform-brand{display:flex;align-items:center;gap:12px}
.allplatform-mark{display:inline-flex;align-items:center;justify-content:center;padding:10px 14px;border-radius:999px;background:linear-gradient(135deg,#101820,#4b65cf);color:#fff;font-weight:700}
.allplatform-nav{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.allplatform-nav a{padding:11px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink)}
.allplatform-cta{background:linear-gradient(135deg,var(--green),#101820)!important;color:#fff!important;border-color:transparent!important}
.allplatform-hero{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch;padding:22px 0 10px}
.allplatform-map,.allplatform-copy,.allplatform-grid article,.allplatform-box,.allplatform-faq,.allplatform-final,.allplatform-footer{box-shadow:var(--shadow)}
.allplatform-map,.allplatform-copy,.allplatform-grid article,.allplatform-box,.allplatform-faq,.allplatform-final{background:var(--panel);border:1px solid rgba(16,24,32,.08);border-radius:30px}
.allplatform-map{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;align-content:center;min-height:340px;padding:24px;background:linear-gradient(180deg,rgba(75,101,207,.08),rgba(43,176,118,.08)),#fff}
.allplatform-node{min-height:84px;display:flex;align-items:center;justify-content:center;border-radius:22px;border:1px solid var(--line);background:#f8fbff;font-weight:800}
.allplatform-node.is-current{background:linear-gradient(135deg,var(--yellow),#101820);color:#fff}
.allplatform-copy{padding:28px}
.allplatform-kicker,.allplatform-tag{margin:0 0 10px;letter-spacing:.14em;text-transform:uppercase;font-size:13px;color:#4b65cf;font-weight:700}
.allplatform-copy h1{margin:0;font-size:clamp(34px,4vw,54px);line-height:1.05}
.allplatform-lead{margin:16px 0 20px;color:#394756;line-height:1.85;font-size:18px}
.allplatform-actions{display:flex;gap:12px;flex-wrap:wrap}
.allplatform-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:12px 18px;border-radius:16px;border:1px solid transparent;font-weight:700;transition:transform .18s ease,box-shadow .18s ease}
.allplatform-btn:hover{transform:translateY(-1px)}
.allplatform-btn:active{transform:translateY(1px)}
.allplatform-btn:focus-visible,.allplatform-nav a:focus-visible,.allplatform-faq summary:focus-visible{outline:3px solid rgba(75,101,207,.34);outline-offset:2px}
.allplatform-btn.primary{background:linear-gradient(135deg,var(--yellow),#101820);color:#fff}
.allplatform-btn.ghost{background:#f6fbff;color:var(--ink);border-color:var(--line)}
.allplatform-btn.large{min-height:52px;padding-inline:22px}
.allplatform-suggest{margin-top:22px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.allplatform-suggest span{font-size:13px;color:#60717b}
.allplatform-suggest strong{display:block;margin-top:8px;padding:16px;border-radius:18px;background:#f5f9fb;border:1px solid var(--line)}
.allplatform-section{padding:18px 0}
.allplatform-head{margin-bottom:14px}
.allplatform-section h2{margin:0;font-size:clamp(24px,2.7vw,34px);line-height:1.14}
.allplatform-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.allplatform-grid article,.allplatform-box,.allplatform-final{padding:22px}
.allplatform-grid h3{margin:0 0 10px;font-size:18px}
.allplatform-grid p,.allplatform-box p,.allplatform-final p,.allplatform-faq p,.allplatform-footer p{margin:0;color:#394756;line-height:1.84}
.allplatform-faq{padding:22px;display:grid;gap:12px}
.allplatform-faq details{border-radius:20px;border:1px solid var(--line);background:#fbfeff;padding:14px 16px}
.allplatform-faq summary{cursor:pointer;font-weight:700}
.allplatform-final{display:grid;gap:18px}
.allplatform-footer{display:grid;grid-template-columns:1fr 1fr auto;gap:18px;align-items:center;padding:22px 26px;margin:22px auto 104px;border-radius:28px;background:linear-gradient(135deg,#101820,#4b65cf);color:#fff}
.allplatform-footer p{color:#e8f1ff}
.allplatform-footer-cta{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:12px 18px;border-radius:16px;background:#2bb076;color:#112115;font-weight:800}
.allplatform-mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:60;display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;padding:12px 16px calc(12px + env(safe-area-inset-bottom));background:rgba(12,18,24,.92);backdrop-filter:blur(12px)}
.allplatform-mobile-bar a{display:flex;align-items:center;justify-content:center;min-height:48px;padding:10px 12px;border-radius:16px;background:#f5fbff;color:#101820;font-weight:800;text-align:center}
@media (max-width:980px){.allplatform-hero,.allplatform-grid,.allplatform-footer{grid-template-columns:1fr}.allplatform-header{flex-direction:column;align-items:flex-start}}
@media (max-width:640px){.allplatform-header,.allplatform-hero,.allplatform-section,.allplatform-footer{width:min(100% - 20px,1360px)}.allplatform-map,.allplatform-copy,.allplatform-grid article,.allplatform-box,.allplatform-faq,.allplatform-final,.allplatform-footer{border-radius:22px}.allplatform-map{grid-template-columns:1fr;min-height:auto}.allplatform-actions,.allplatform-mobile-bar{grid-template-columns:1fr}.allplatform-actions,.allplatform-suggest{display:grid;grid-template-columns:1fr}.allplatform-btn,.allplatform-mobile-bar a{width:100%}.allplatform-footer{margin-bottom:176px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.allplatform-btn{transition:none}}