:root{--ink:#203e35;--muted:#667469;--paper:#f5f4ec;--line:#d5dbcf;--green:#274f3f;--lime:#dcedb5;font-family:"Avenir Next","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}header{max-width:1240px;margin:auto;padding:28px 40px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font-family:"Hiragino Mincho ProN","Songti SC",serif;font-size:26px;font-weight:700}.brand span{font:14px "Avenir Next",sans-serif;margin-left:12px}nav{display:flex;gap:28px;font-size:12px}main{max-width:1160px;margin:auto;padding:0 24px}.preview{display:flex;gap:14px;align-items:center;margin:22px 0 0;font-size:11px;color:var(--muted);line-height:1.8}.preview span{border:1px solid #aab99b;border-radius:3px;padding:2px 7px;white-space:nowrap}.hero{display:flex;justify-content:space-between;align-items:center;padding:48px 0 56px}.eyebrow,.plan-index{font-size:10px;letter-spacing:2px;color:var(--muted)}h1{font:500 clamp(34px,4.5vw,58px)/1.3 "Hiragino Mincho ProN","Songti SC",serif;letter-spacing:-1px;margin:18px 0 22px}h1>span{color:#879b68}.lead{font-size:14px;line-height:1.95;color:var(--muted);margin-bottom:0}.time-note{width:240px;padding:25px 0 18px 38px;border-left:1px solid var(--line);align-self:center}.time-note>span{font-size:9px;letter-spacing:1.6px}.time-note strong{display:block;font:500 92px/1.2 "Baskerville","Times New Roman",serif;letter-spacing:-4px}.time-note strong span{font:13px "PingFang SC",sans-serif;letter-spacing:0;margin-left:14px}.time-note p{font-size:12px;line-height:1.8;color:var(--muted)}.ticks{height:14px;margin-top:24px;background:repeating-linear-gradient(90deg,#afbea3 0,#afbea3 1px,transparent 1px,transparent 10px)}.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;scroll-margin-top:24px}.plan{position:relative;padding:28px 28px 26px;border:1px solid var(--line);border-radius:12px;background:#fafaf5}.plan.featured{background:var(--green);color:#f5f5e7;border-color:var(--green)}.recommend{position:absolute;right:18px;top:19px;font-size:10px;padding:4px 8px;color:var(--lime);border:1px solid #7d9a76;border-radius:20px}.featured .plan-index,.featured .description{color:#c3d0bf}h2{font-size:22px;font-weight:500;letter-spacing:-.5px;margin:22px 0 12px}.price{margin:22px 0 0;display:flex;align-items:baseline;gap:10px}.price strong{font:500 46px/1.2 "Baskerville","Times New Roman",serif;letter-spacing:-1px}.price>span{font-size:11px;color:var(--muted)}.featured .price>span{color:#bccbb6}.allowance{font-size:14px;margin:12px 0 16px}.description{font-size:12px;line-height:1.9;color:var(--muted);min-height:46px}button{border:1px solid #9cac94;background:transparent;color:var(--ink);border-radius:6px;padding:13px 14px;font-size:12px;transition:background .15s}.plan button{width:100%;margin:10px 0 12px}.featured button{background:var(--lime);border-color:var(--lime);color:#26432f}button:hover:enabled{background:#e6ecd9}.featured button:hover:enabled{background:#ebf8d0}button:disabled{cursor:default;opacity:.5}.plan ul{list-style:none;padding:0;font-size:11px;line-height:2.5;margin:8px 0 0}.plan li:before{content:'✓';margin-right:9px;color:#78905b}.featured li:before{color:var(--lime)}.common{font-size:11px;line-height:1.8;color:var(--muted);text-align:center;padding:15px 0 25px}.account-overview{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);border:1px solid var(--line);border-radius:12px;background:#fafaf5;margin-bottom:26px;overflow:hidden}.account-overview:has(>.login-panel[hidden]){grid-template-columns:1fr}.account{display:grid;grid-template-columns:minmax(0,1fr) auto;align-content:start;align-items:start;gap:16px;padding:28px;border-left:1px solid var(--line);scroll-margin-top:24px;min-width:0}.account>div:first-child{grid-column:1/-1}.account h2{margin:12px 0}.account p:not(.eyebrow){font-size:11px;color:var(--muted);line-height:1.9;margin-bottom:0}.balance{display:flex;flex-direction:column;gap:8px;min-width:0}.balance strong{font-size:26px;font-weight:500;line-height:1.45;font-variant-numeric:tabular-nums}.balance>span{font-size:10px;color:var(--muted)}.account-actions{display:flex;flex-direction:column;gap:8px;align-items:flex-end;max-width:170px}.secondary{padding:10px 14px;font-size:11px}.account #feedback{grid-column:1/-1;max-width:none;margin:0}.account #feedback.error{color:#a4372a}#grants{grid-column:1/-1;padding:0;margin:0;list-style:none}#grants li{display:flex;flex-wrap:wrap;justify-content:space-between;font-size:11px;line-height:1.7;gap:4px 16px;padding:12px 0;border-top:1px solid var(--line)}#grants li span{overflow-wrap:anywhere}
.rules{display:grid;grid-template-columns:1fr 1.65fr;gap:60px;padding:55px 0 64px;scroll-margin-top:24px}.rules h2{font:500 32px/1.45 "Hiragino Mincho ProN","Songti SC",serif}.rules>div>p:not(.eyebrow){font-size:12px;line-height:1.9;color:var(--muted)}details{border-bottom:1px solid var(--line);padding:17px 0}summary{cursor:pointer;font-size:13px;line-height:1.6}details p{font-size:12px;line-height:1.95;color:var(--muted);padding-left:18px}footer{max-width:1160px;margin:auto;padding:24px 24px 36px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;font-size:11px;color:var(--muted)}[hidden]{display:none!important}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid #a2ba64;outline-offset:5px}@media(max-width:760px){header{padding:22px 24px}.brand span{display:none}nav{gap:14px;font-size:11px}.hero{padding:34px 0}.time-note{display:none}.preview{font-size:10px}.plans{grid-template-columns:1fr}.plan{padding:24px}.description{min-height:0}.common{text-align:left}.account-overview{grid-template-columns:1fr}.account{border-left:0;border-top:1px solid var(--line);padding:24px}.balance{grid-column:auto}.account-actions{align-items:flex-end}.rules{grid-template-columns:1fr;gap:14px;padding:32px 0}.rules h2 br{display:none}footer{flex-wrap:wrap}.price strong{font-size:44px}}

.login-panel{padding:28px;min-width:0;max-width:100%}.login-panel h2{margin:12px 0}.login-panel p{overflow-wrap:anywhere;font-size:12px;line-height:1.8;color:var(--muted)}.login-panel label{display:block;font-size:12px;margin:14px 0 7px}.login-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.login-panel input{font:inherit;font-size:14px;padding:12px;border:1px solid #aab99b;background:var(--paper);color:var(--ink);border-radius:6px;width:min(100%,360px);min-width:0}.login-row input{flex:1;max-width:360px}.login-panel button{white-space:nowrap}.login-panel #connectionInfo{border-top:1px solid var(--line);margin-top:20px;padding-top:10px}.login-panel #loginFeedback{min-height:22px}.preview #previewText{border:0;padding:0;white-space:normal}.login-panel input:focus-visible{outline:2px solid #78905b;outline-offset:2px}@media(max-width:480px){.login-panel,.account{padding:20px}.account-actions{max-width:130px}.balance strong{font-size:22px}.login-row input{flex-basis:100%;max-width:100%}.login-row button{flex:1}}

.login-panel .primary{background:var(--green);border-color:var(--green);color:#fff;font-size:14px;font-weight:600;padding:15px 22px}.login-panel .primary:hover:enabled{background:#193d30}.login-panel .primary:focus-visible{outline:3px solid #9bb86c;outline-offset:4px}

header{flex-wrap:wrap;gap:18px}header nav{flex-wrap:wrap}
.ui-language{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--muted)}
.ui-language select{font:inherit;color:var(--ink);background:#fafaf5;border:1px solid var(--line);border-radius:6px;padding:8px;max-width:160px}
select:focus-visible{outline:2px solid #78905b;outline-offset:3px}
.price{flex-wrap:wrap}.price strong{font-size:clamp(30px,3.5vw,46px)}
.plan{padding-top:48px}.recommend{position:absolute;right:18px;top:12px;margin:0}
.balance strong{overflow-wrap:anywhere}.preview{flex-wrap:wrap}
@media(max-width:760px){header .ui-language{margin-left:auto}.hero h1{font-size:clamp(32px,8vw,48px)}.price strong{font-size:38px}}

/* 首页安装引导：下载位于首屏，步骤先于账户与方案展示。 */
.nav-install{font-weight:700;border-bottom:2px solid var(--green);padding-bottom:4px}
.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:18px;margin:26px 0 12px}
.download-button{display:inline-flex;align-items:center;justify-content:center;background:var(--green);color:#fff;border-radius:8px;padding:17px 25px;font-size:15px;font-weight:600;line-height:1.5;transition:background .15s}
.download-button:hover{background:#193d30}.guide-link{font-size:12px;line-height:1.7;text-decoration:underline;text-underline-offset:5px}
.download-note{font-size:11px;line-height:1.8;color:var(--muted);margin:4px 0}
.install-guide{scroll-margin-top:24px;background:#fafaf5;border:1px solid var(--line);border-radius:12px;padding:30px;margin-bottom:32px}
.install-heading{display:flex;justify-content:space-between;align-items:center;gap:24px;padding-bottom:26px}.install-heading h2{margin:10px 0;font:500 28px/1.4 "Hiragino Mincho ProN","Songti SC",serif}.install-heading p:not(.eyebrow){font-size:12px;line-height:1.8;color:var(--muted);margin:0}.install-heading>.guide-link{flex-shrink:0}
.install-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));list-style:none;margin:0;padding:0}.install-steps>li{min-width:0;padding:0 22px;border-left:1px solid var(--line)}.install-steps>li:first-child{border:0;padding-left:0}.install-steps>li:last-child{padding-right:0}.step-number{font:500 32px/1.2 "Baskerville","Times New Roman",serif;color:#7d906b}
.install-guide h3{font-size:15px;line-height:1.5;font-weight:600;margin:12px 0}.install-steps p,.install-help p{font-size:12px;line-height:1.9;color:var(--muted);margin:10px 0}.install-steps .step-tip{font-size:11px;color:var(--ink)}.extension-address{display:block;background:#eaf0e3;border:1px solid var(--line);border-radius:5px;padding:9px 7px;font-size:11px;user-select:all;overflow-wrap:anywhere}
.install-help{margin-top:26px;border-top:1px solid var(--line);border-bottom:0;padding:16px 0 0}.install-help-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}.install-help p{padding:0}.login-panel{scroll-margin-top:24px}
@media(max-width:1000px){.install-steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 0}.install-steps>li:nth-child(3){border:0;padding-left:0}.install-steps>li:nth-child(2){padding-right:0}}
@media(max-width:760px){.install-guide{padding:24px}.install-heading{display:block}.install-heading>.guide-link{display:inline-block;margin-top:14px}.install-heading h2{font-size:25px}.install-help-grid{grid-template-columns:1fr;gap:6px}.hero-actions{gap:14px}.download-button{width:100%}}
@media(max-width:480px){.install-guide{padding:20px}.install-steps{grid-template-columns:1fr;gap:20px}.install-steps>li,.install-steps>li:first-child,.install-steps>li:nth-child(3){border:0;border-top:1px solid var(--line);padding:20px 0 0}.install-steps>li:first-child{padding-top:0;border:0}.extension-address{font-size:13px}}