:root{--ec-ink:#1c374c;--ec-muted:#577286;--ec-border:#d9e4eb;--ec-cyan:#1a7189;--ec-amber:#edc18a;--ec-bg:#f3f7f9;--ec-night:#112b3e}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body.ec-page{margin:0;background:#fff;color:var(--ec-ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC","Helvetica Neue",Arial,sans-serif;line-height:1.6}
.ec-page h1,.ec-page h2,.ec-page h3{letter-spacing:-.031em;line-height:1.15}
.ec-page h1{font-size:clamp(40px,5.5vw,72px);letter-spacing:-.055em}
.ec-page h2{font-size:clamp(28px,3.5vw,43px);margin:0 0 22px}
.ec-page h3{font-size:20px;margin:7px 0 14px}
.ec-page a{overflow-wrap:anywhere;color:#1b6882}
.ec-wrap{max-width:1160px;width:calc(100% - 48px);margin-left:auto;margin-right:auto}
.ec-top{background:#fff;border-bottom:1px solid #e8eef2}
.ec-head{display:flex;justify-content:space-between;align-items:center;gap:18px;min-height:90px;flex-wrap:wrap}
.ec-brand{display:flex;flex-direction:column;font-weight:850;font-size:28px;letter-spacing:-.03em;color:#214359!important;text-decoration:none}
.ec-brand small{letter-spacing:.17em;text-transform:uppercase;font-size:8px;color:#345266;line-height:2}
.ec-top nav{display:flex;flex-wrap:wrap;gap:18px;font-size:13px}
.ec-top nav a{color:#2b596f;font-weight:650;text-decoration:none}
.ec-top nav a:hover{text-decoration:underline}
.ec-hero{color:white;background:radial-gradient(circle at 87% 0%,rgba(97,151,176,.23),transparent 35%),linear-gradient(135deg,#102639,#193e58);padding:28px 0 0}
.ec-breadcrumb{font-size:12px;line-height:1.7;color:#c5d9e5;margin:0 0 38px}
.ec-breadcrumb a{color:#e4f3fa;text-decoration:none;border-bottom:1px solid #9bb6c6}
.ec-hero-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(290px,.79fr);gap:48px;align-items:center;padding:0 0 53px}
.ec-kicker{font-size:12px;text-transform:uppercase;font-weight:850;letter-spacing:.12em;color:#27728f;margin:0 0 16px}
.ec-hero .ec-kicker,.ec-dark .ec-kicker{color:#f0c58b}
.ec-hero h1{color:#fff;margin:0 0 22px}
.ec-hero h1 span{color:#f3c98c}
.ec-lead{font-size:clamp(17px,1.65vw,20px);line-height:1.72;color:#e5f1f6;max-width:760px}
.ec-zh{color:var(--ec-muted);font-size:15px;line-height:1.84}
.ec-hero .ec-zh,.ec-dark .ec-zh{color:#d7e9ef}
.ec-hero .ec-lead-zh{font-size:16px;max-width:760px}
.ec-actions{display:flex;flex-wrap:wrap;gap:11px;align-items:center;margin-top:24px}
.ec-button{display:inline-flex;align-items:center;justify-content:center;border:1px solid transparent;padding:11px 16px;min-height:45px;border-radius:8px;font:750 14px/1.3 inherit;text-decoration:none!important;cursor:pointer;transition:transform .15s,filter .15s;background:#fff}
.ec-button:hover{transform:translateY(-1px);filter:brightness(1.03)}
.ec-button:disabled{opacity:.55;cursor:not-allowed;transform:none}
.ec-primary{background:#f0cb94;color:#17354b!important}
.ec-outline{background:rgba(255,255,255,.05);border-color:#9dbcc9;color:#f1faff!important}
.ec-ghost{background:#fff;border-color:#b7cbd4;color:#23516d!important}
.ec-textbutton{background:transparent;color:#23728b!important;border-color:#c0d4dc}
.ec-proof{background:rgba(255,255,255,.07);border:1px solid rgba(221,238,246,.25);border-radius:14px;padding:28px;box-shadow:0 18px 50px rgba(9,20,30,.12)}
.ec-proof-head{font-size:12px;letter-spacing:.1em;color:#edc78e;font-weight:850}
.ec-proof strong{display:block;font-size:43px;line-height:1.1;color:#f4d2a1;margin:22px 0 4px}
.ec-proof p{color:#e0ecf1;font-size:14px;line-height:1.62;margin:0}
.ec-proof small{display:block;border-top:1px solid #ffffff44;padding-top:18px;margin-top:25px;color:#cbdee7;font-size:12px;line-height:1.65}
.ec-meta{display:flex;gap:13px;justify-content:space-between;flex-wrap:wrap;border-top:1px solid #ffffff2f;color:#b8d1de;font-size:11px;padding:15px 0 19px}
.ec-section{padding:80px 0}
.ec-section-intro{max-width:920px;line-height:1.84;font-size:16px;color:#527487;margin:0 0 32px}
.ec-soft{background:var(--ec-bg)}
.ec-grid{display:grid;gap:17px}
.ec-grid3{grid-template-columns:repeat(3,minmax(0,1fr))}
.ec-grid2{grid-template-columns:repeat(2,minmax(0,1fr))}
.ec-card{background:#fff;border:1px solid var(--ec-border);border-radius:11px;padding:26px;min-width:0}
.ec-card p{font-size:15px;line-height:1.76;color:#526f7e}
.ec-card p:last-child{margin-bottom:0}
.ec-card .ec-zh{font-size:14px}
.ec-tag{display:block;color:#288199;letter-spacing:.09em;font-size:11px;font-weight:850;text-transform:uppercase}
.ec-footnote{font-size:13px;line-height:1.7;color:#6a7e8a;margin:24px 0 0}
.ec-card .ec-type{display:inline-flex;background:#ebf3f6;padding:4px 9px;border-radius:5px;color:#346777;font-size:12px;margin:5px 0 8px}
.ec-spec-line{margin:0 0 8px!important;color:#4a697a;font-size:14px!important;line-height:1.65}
.ec-model-title{font-size:19px!important;line-height:1.22;color:#20465d!important}
.ec-scope{font-size:11px;font-weight:850;color:#936c33;margin:0 0 7px}
.ec-supplier{font-size:13px;color:#4a6f7c;margin:0 0 13px}
.ec-card .ec-source-link{display:inline-flex;margin-top:14px;border-bottom:1px solid #a2c3d3;color:#165d80;text-decoration:none;font-size:13px;font-weight:850}
.ec-need-label{font-size:11px;color:#79592c;font-weight:800;margin-top:14px;text-transform:uppercase}
.ec-simulator{display:grid;grid-template-columns:minmax(290px,.91fr) minmax(0,1.09fr);gap:0;border:1px solid #c6d7e1;border-radius:14px;overflow:hidden;box-shadow:0 12px 38px #16374b0d}
.ec-controls,.ec-results{padding:30px}
.ec-controls{background:#eef4f7}
.ec-results{background:#fdfefe;min-height:470px}
.ec-controls h3{margin:0 0 20px}
.ec-controls>label{display:block;font-size:13px;font-weight:800;color:#35576c;margin:19px 0 7px}
.ec-controls select{width:100%;min-height:43px;background:white;border:1px solid #b3c9d5;border-radius:8px;padding:10px;color:#244b62;font-size:14px}
.ec-profile-note{border:1px solid #d1e1e9;background:#fff;border-radius:8px;padding:12px;margin:14px 0;line-height:1.6;font-size:13px;color:#597485}
.ec-controls fieldset{border:1px solid #bfd1dd;padding:12px 15px;border-radius:8px;margin:19px 0}
.ec-controls legend{font-size:13px;font-weight:800;color:#315871;padding:0 5px}
.ec-checkbox{display:flex;gap:11px;align-items:flex-start;font-size:13px;line-height:1.6;margin:11px 0;color:#3c6376;cursor:pointer}
.ec-checkbox input{margin-top:5px;accent-color:#167d78}
.ec-checkbox input:disabled+span{opacity:.65}
.ec-results h3{font-size:23px;margin:12px 0 10px;overflow-wrap:anywhere}
.ec-results p{color:#536f7f;font-size:14px;line-height:1.8}
.ec-events{list-style:none;padding:0;margin:22px 0 16px;border-left:2px solid #bdd3dc}
.ec-events li{position:relative;padding:4px 0 16px 20px;line-height:1.7;color:#486a7b;font-size:13px}
.ec-events li::before{content:"";position:absolute;width:10px;height:10px;border:2px solid white;background:#6bafaa;box-shadow:0 0 0 1px #9ebac7;border-radius:50%;left:-6px;top:9px}
.ec-events b{display:block;color:#29586b;font-size:13px}
.ec-events small{display:block;color:#66818d}
.ec-results .ec-empty{color:#8a9ca6}
.ec-copy-result{font-size:12px!important;color:#167363!important;min-height:20px}
.ec-success{color:#0c7665!important}
.ec-alert{color:#a16e2d!important}
.ec-step{color:#2c8093;font-weight:850;font-size:11px;letter-spacing:.12em}
.ec-warning{background:#fff6e9;border-left:4px solid #d89d43;padding:18px 22px;margin-top:26px;border-radius:0 8px 8px 0}
.ec-warning p{color:#625f57;line-height:1.8;margin:9px 0}
.ec-dark{background:linear-gradient(145deg,#15354c,#102b3d);color:#fff}
.ec-dark h2{color:#fff}
.ec-dark .ec-lead{font-size:18px;color:#dfeef2;line-height:1.75;max-width:1020px}
.ec-partner{border:1px solid rgba(237,246,250,.23);background:rgba(255,255,255,.04);padding:26px;border-radius:12px}
.ec-partner h3{font-size:22px;color:#fff}
.ec-partner p{font-size:15px;line-height:1.8;color:#dce9f0}
.ec-partner a{display:inline-block;color:#f3cd94;font-weight:750;font-size:14px;margin-top:13px}
.ec-disclaimer{display:block;font-size:12px;color:#bdd1dc;line-height:1.7;margin-top:22px}
.ec-resource-links{display:flex;gap:11px;flex-wrap:wrap;margin:22px 0}
.ec-resource-links a{display:inline-flex;padding:11px 15px;border:1px solid #adc8d6;border-radius:8px;color:#255c7c;background:#fff;font-weight:700;text-decoration:none;font-size:13px}
.ec-document{padding:25px 27px;border-radius:12px;border:1px solid #c7d6e0;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;margin:18px auto 65px}
.ec-document h2{font-size:23px;margin:2px 0 9px}
.ec-document a{font-size:14px;font-weight:750}
.ec-document .ec-actions{margin:0}
.ec-footer{background:#eef3f5;padding:27px 0;font-size:12px;color:#547180}
.ec-footer-line{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
.ec-page :is(a,button,input,select):focus-visible{outline:3px solid #df9c3f;outline-offset:3px}
@media(max-width:980px){.ec-hero-grid{grid-template-columns:1fr}.ec-proof{max-width:650px}.ec-grid3{grid-template-columns:repeat(2,minmax(0,1fr))}.ec-simulator{grid-template-columns:1fr}}
@media(max-width:620px){.ec-wrap{width:calc(100% - 32px)}.ec-head{padding:15px 0;gap:12px}.ec-top nav{gap:12px}.ec-hero{padding-top:18px}.ec-breadcrumb{margin:0 0 26px}.ec-hero-grid{gap:21px}.ec-hero h1{font-size:42px}.ec-section{padding:53px 0}.ec-grid2,.ec-grid3{grid-template-columns:1fr}.ec-controls,.ec-results{padding:22px}.ec-meta{gap:12px}.ec-proof{padding:23px}.ec-document{margin-bottom:42px}}
@media print{.ec-hero,.ec-dark{background:white!important;color:#111!important}.ec-hero *,.ec-dark *{color:#111!important}.ec-section{padding:24px 0}.ec-grid,.ec-simulator{display:block}.ec-card,.ec-partner{break-inside:avoid;margin:12px 0}.ec-top nav,.ec-actions{display:none}.ec-results{min-height:0}}