:root{--ink:#202723;--muted:#626c66;--green:#2f6456;--green-dark:#244d42;--wash:#eaf1ed;--page:#f5f6f4;--line:#dce1dc;--rail:148px;--white:#fff}
*{box-sizing:border-box}body{margin:0;background:var(--page);color:var(--ink);font:14px/1.65 "PingFang SC","Microsoft YaHei UI","Microsoft YaHei",sans-serif}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--green);outline-offset:4px}svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.55;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.sprite{position:absolute;width:0;height:0;overflow:hidden}.skip-link{position:absolute;top:-70px;left:160px;background:var(--green);color:white;padding:10px 18px;z-index:30}.skip-link:focus{top:10px}
.rail{position:fixed;inset:0 auto 0 0;z-index:10;display:flex;flex-direction:column;width:var(--rail);padding:30px 16px 20px;background:white;border-right:1px solid var(--line)}.brand{display:flex;gap:9px;align-items:center;margin:0 3px 36px}.brand-mark{display:grid;place-items:center;width:33px;height:33px;border-radius:9px;background:var(--green);color:white}.brand-mark svg{width:23px;height:23px}.brand-name{font-size:12px;font-weight:650;line-height:1.55}.rail nav{display:grid;gap:8px}.nav-link{display:flex;align-items:center;gap:9px;padding:12px 9px;border-radius:7px;color:var(--muted);font-size:12px;white-space:nowrap}.nav-link svg{width:18px;height:18px}.nav-link[aria-current=page]{background:var(--wash);color:var(--green);font-weight:600}.nav-link:hover{background:#f1f4f0}.nav-divider{height:1px;background:#e7ebe5;margin:14px 9px}.rail-foot{display:flex;gap:8px;margin-top:auto;padding:18px 5px 0;border-top:1px solid var(--line);font-size:10px;color:#7a837b}.rail-foot svg{width:15px;height:15px;margin-top:2px}
.main{margin-left:var(--rail)}.topbar{height:70px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 38px;background:white;border-bottom:1px solid var(--line);font-size:13px}.topbar-right{display:flex;align-items:center;gap:24px}.topbar-right>a{display:flex;align-items:center;gap:8px;color:var(--green);font-size:12px}.topbar-right>a svg{width:16px}.preview-badge{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:11px}.preview-badge>span:first-child{width:6px;height:6px;background:#8c9d83;border-radius:50%}.workspace{max-width:1260px;margin:auto;padding:32px 38px 42px;min-height:calc(100vh - 140px)}.eyebrow{font-size:11px;letter-spacing:.06em;color:#7b857d;margin-bottom:13px}.page-intro h1{font-size:30px;letter-spacing:-.7px;font-weight:620;line-height:1.35;margin:0 0 10px}.page-intro p{color:var(--muted);margin:0;max-width:700px;font-size:13px}.intro-row{display:flex;justify-content:space-between;gap:24px;align-items:end}.updated{font-size:11px;color:#7a837b;white-space:nowrap;padding-bottom:4px}.notice-strip{display:flex;align-items:center;gap:10px;margin:24px 0 22px;padding:12px 15px;border:1px solid #d7e3d8;background:#eef3ed;border-radius:8px;color:#4d6557;font-size:12px}.notice-strip svg{width:17px;height:17px}.notice-strip a{margin-left:auto;display:flex;gap:5px;align-items:center;white-space:nowrap;color:var(--green)}.notice-strip a svg{width:14px}
.section-title{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 0 14px}.section-title h2{font-size:17px;font-weight:620;margin:0}.section-title p,.section-title>span{font-size:11px;color:var(--muted);margin:3px 0 0}.single-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.single-card{display:flex;align-items:center;justify-content:space-between;gap:16px;background:white;border:1px solid var(--line);border-radius:9px;padding:17px 19px}.single-label{font-size:16px;font-weight:650}.single-label small{display:block;font-size:11px;color:var(--muted);font-weight:400;margin-top:2px}.single-price{display:flex;gap:3px;align-items:baseline;font-family:"Bahnschrift","Arial",sans-serif;font-variant-numeric:tabular-nums}.single-price b{font-size:25px;font-weight:550}.single-price em{font-family:inherit;font-size:11px;font-style:normal;color:var(--muted);margin-left:2px}.single-caption{color:var(--muted);font-size:11px;margin:10px 0 0}.packages-section{margin-top:29px}.package-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:17px}.package-heading h2{font-size:18px;margin:0 0 3px;font-weight:620}.package-heading p{font-size:12px;color:var(--muted);margin:0}.resolution-tabs{display:flex;padding:4px;gap:3px;background:#e7ece6;border-radius:8px;border:1px solid #e1e7de}.resolution-tabs button{min-width:59px;min-height:34px;background:none;border:1px solid transparent;border-radius:5px;font-size:12px;color:var(--muted)}.resolution-tabs button[aria-pressed=true]{background:white;border-color:#d7dfd4;box-shadow:0 1px 3px #20372608;color:var(--green);font-weight:650}.package-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px}.package-card{display:flex;flex-direction:column;min-width:0;border:1px solid var(--line);background:white;border-radius:10px;padding:21px 20px 19px;position:relative}.package-card.first-order{border-color:#abc3ad;background:linear-gradient(135deg,#f6faf3,#fff 70%)}.package-tag{font-size:10px;color:var(--green);background:#e5eee2;border-radius:4px;padding:3px 7px;position:absolute;top:18px;right:16px}.package-card h3{font-size:15px;font-weight:620;margin:0 0 12px}.price-row{display:flex;align-items:baseline;gap:4px;font-family:"Bahnschrift","Arial",sans-serif;font-variant-numeric:tabular-nums}.price-row span{font-size:15px}.price-row b{font-size:37px;line-height:1.15;font-weight:550;letter-spacing:-1px}.price-caption{font-size:10px;color:#7a837b;margin:3px 0 22px}.capacity{display:flex;align-items:baseline;gap:5px;margin-bottom:8px}.capacity strong{font-size:21px;font-family:"Bahnschrift","Arial",sans-serif;font-weight:550}.capacity span{font-size:12px;color:var(--green)}.capacity-note{min-height:34px;margin:0;font-size:11px;color:var(--muted)}.card-divider{height:1px;background:#e6eae3;margin:17px 0 13px}.benefits{list-style:none;padding:0;margin:0 0 19px;display:grid;gap:8px;font-size:11px;color:#535e55}.benefits li{display:flex;align-items:center;gap:7px}.benefits svg{width:14px;height:14px;color:#658b73}.purchase-button{margin-top:auto;min-height:37px;border:1px solid #dce4d8;border-radius:6px;background:#f3f6f0;color:#798574;font-size:11px;cursor:not-allowed}.first-order .purchase-button{background:#e3ecdf;border-color:#d2e0cb;color:#62725c}.package-note{font-size:11px;color:var(--muted);margin:13px 0 0}.mixed-example{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:24px;margin:24px 0;padding:20px 23px;border:1px solid #dce4d6;border-radius:9px;background:#edf2e9}.mixed-example h3{margin:0 0 6px;font-size:14px;font-weight:620}.mixed-example p{margin:0;font-size:11px;color:var(--muted)}.equation{display:flex;align-items:center;gap:9px;color:var(--green);font-size:12px;white-space:nowrap}.equation span{padding:9px 11px;background:#ffffffb3;border:1px solid #dce4d5;border-radius:6px}.equation i{font-style:normal;color:#8c9c88}.rules-title{font-size:15px;margin:0 0 10px;font-weight:620}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{display:flex;justify-content:space-between;align-items:center;gap:15px;cursor:pointer;list-style:none;padding:14px 1px;font-size:12px}.faq-list summary::after{content:"＋";color:var(--green);font-size:16px}.faq-list details[open] summary::after{content:"−"}.faq-list details p{font-size:12px;color:var(--muted);margin:0 0 15px;max-width:800px;line-height:1.9}.page-footer{max-width:1260px;margin:auto;padding:18px 38px 22px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px;font-size:10px;color:#7d857f}
.notices-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;align-items:start;gap:26px;margin-top:25px}.filter-row{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:18px}.filter-row button{border:1px solid var(--line);border-radius:6px;background:transparent;padding:7px 12px;color:var(--muted);font-size:11px}.filter-row button[aria-pressed=true]{color:white;background:var(--green);border-color:var(--green)}.notice-list{display:grid;gap:13px}.announcement{border:1px solid var(--line);background:white;border-radius:10px;overflow:hidden}.announcement.pinned{border-color:#b9ceb8}.announcement summary{list-style:none;cursor:pointer;padding:22px 24px;position:relative}.announcement-head{display:flex;align-items:center;gap:9px;margin-bottom:10px;padding-right:23px;font-size:10px;color:#7a837b}.category-tag{padding:2px 7px;background:#edf1ea;border-radius:4px;color:#5f745f}.pin-label{font-size:10px;color:var(--green)}.announcement h2{font-size:17px;font-weight:610;line-height:1.55;margin:0 23px 9px 0}.announcement summary>p{margin:0;color:var(--muted);font-size:12px;line-height:1.9;padding-right:15px}.announcement .expand{display:flex;align-items:center;gap:5px;color:var(--green);font-size:11px;margin-top:15px}.expand svg{width:14px;height:14px}.announcement[open] .expand svg{transform:rotate(90deg)}.announcement-body{padding:0 24px 21px}.announcement-body p{font-size:12px;line-height:1.95;color:#566158;margin:0 0 10px;padding-top:10px;border-top:1px solid #edf0e9}.announcement-body p+p{padding-top:0;border-top:0}.notice-aside{display:grid;gap:15px;margin-top:47px}.aside-card{padding:22px;border:1px solid var(--line);border-radius:9px;background:#fff}.aside-card.soft{background:#edf2e9;border-color:#dce4d6}.aside-card>svg{width:25px;height:25px;color:var(--green);margin-bottom:12px}.aside-card h3{font-size:14px;margin:0 0 9px;font-weight:620}.aside-card p{font-size:11px;line-height:1.9;color:var(--muted);margin:0}.aside-card a{font-size:11px;display:flex;align-items:center;gap:6px;color:var(--green);margin-top:16px}.aside-card a svg{width:15px}.notices-end{text-align:center;color:#879184;font-size:11px;padding:23px}.preview-state{margin:20px 0;padding:24px;border:1px dashed #cdd8c8;border-radius:10px;color:var(--muted);background:#fff}.preview-state h2{color:var(--ink);font-size:17px}.preview-state p{font-size:12px}.preview-state button{border:1px solid var(--line);border-radius:6px;background:var(--wash);color:var(--green);padding:8px 16px}.state-preview-link{margin-top:22px;font-size:10px;color:#7d877a}.state-preview-link a{text-decoration:underline;text-underline-offset:3px;margin-right:13px}.loading-line{height:13px;border-radius:3px;background:#e9eee5;width:76%;margin:13px 0}.loading-line.short{width:40%}
@media(max-width:1100px){.workspace{padding:28px 26px 36px}.topbar{padding:0 26px}.package-card{padding:19px 14px 16px}.package-tag{right:10px;font-size:9px}.notices-layout{grid-template-columns:minmax(0,1fr) 215px;gap:18px}.mixed-example{grid-template-columns:1fr;gap:13px}.page-footer{padding-left:26px;padding-right:26px}}
@media(max-width:850px){.package-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.package-card{padding:22px}.notices-layout{grid-template-columns:1fr}.notice-aside{margin-top:0;grid-template-columns:repeat(2,minmax(0,1fr))}.updated{display:none}.topbar-right{gap:14px}.preview-badge{display:none}}
@media(max-width:600px){:root{--rail:0px}.rail{position:static;width:auto;padding:14px 17px 0;border-right:0;border-bottom:1px solid var(--line);background:#fff}.brand{margin:0 0 14px}.brand-name br{display:none}.brand-name{font-size:13px}.brand-mark{width:29px;height:29px}.brand-mark svg{width:21px;height:21px}.rail nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:3px;padding-bottom:10px}.nav-link{justify-content:center;flex-direction:column;gap:4px;padding:8px 3px;font-size:10px}.nav-link svg{width:17px;height:17px}.nav-divider,.rail-foot{display:none}.main{margin:0}.topbar{height:49px;padding:0 19px;font-size:11px}.topbar>span{display:none}.topbar-right{justify-content:space-between;width:100%}.preview-badge{display:flex;font-size:10px}.topbar-right>a{font-size:10px}.workspace{padding:25px 18px 30px}.eyebrow{font-size:10px;margin-bottom:12px}.page-intro h1{font-size:25px;letter-spacing:-.4px}.page-intro p{font-size:12px;line-height:1.9}.notice-strip{align-items:start;padding:12px;font-size:11px;margin:19px 0}.notice-strip svg{margin-top:2px}.notice-strip a{display:none}.single-grid{grid-template-columns:1fr;gap:8px}.single-card{padding:12px 16px}.single-label{font-size:14px}.single-label small{display:inline;margin-left:8px;font-size:10px}.single-price b{font-size:24px}.single-caption{font-size:10px;line-height:1.9}.section-title h2{font-size:15px}.section-title>span{font-size:10px}.package-heading{align-items:start;gap:12px;flex-direction:column}.package-heading h2{font-size:17px}.package-heading p{font-size:11px}.resolution-tabs{width:100%;padding:4px}.resolution-tabs button{flex:1;min-height:35px}.package-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.package-card{padding:18px 12px 14px}.package-tag{position:static;align-self:start;margin-bottom:10px;font-size:9px}.package-card:not(.first-order){padding-top:43px}.package-card h3{font-size:14px;margin-bottom:10px}.price-row b{font-size:31px}.price-row span{font-size:12px}.price-caption{margin-bottom:17px;font-size:9px}.capacity{gap:4px;flex-wrap:wrap}.capacity strong{font-size:20px}.capacity span{font-size:11px}.capacity-note{font-size:10px;min-height:38px}.benefits{font-size:10px;gap:8px}.benefits svg{width:12px;height:12px}.purchase-button{font-size:10px;min-height:36px}.package-note{font-size:10px;line-height:1.9}.mixed-example{padding:17px 15px;margin:20px 0;gap:12px}.mixed-example h3{font-size:13px}.mixed-example p{font-size:10px}.equation{font-size:10px;gap:6px;white-space:normal;flex-wrap:wrap}.equation span{padding:7px 9px}.faq-list summary{font-size:11px;line-height:1.8}.faq-list details p{font-size:11px}.page-footer{padding:17px 18px;flex-direction:column;gap:4px;font-size:9px}.notices-layout{margin-top:22px;gap:12px}.filter-row{gap:5px;margin-bottom:15px}.filter-row button{padding:6px 9px;font-size:10px}.announcement summary{padding:18px 16px}.announcement h2{font-size:15px;margin-right:0}.announcement-head{font-size:9px;gap:7px;padding:0}.announcement summary>p{font-size:11px;padding-right:0}.announcement-body{padding:0 16px 14px}.announcement-body p{font-size:11px}.notice-aside{grid-template-columns:1fr;gap:12px}.aside-card{padding:18px}.aside-card>svg{width:22px;height:22px;margin-bottom:8px}.preview-state{padding:20px}.state-preview-link{font-size:9px;line-height:2}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
/* 三档张数同时常显，避免用户依赖切换才看到1K、2K套餐权益。 */
.capacity-list{display:grid;gap:0;margin:0 0 17px;border-top:1px solid #e6eae3;border-bottom:1px solid #e6eae3}.capacity-list>div{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 0}.capacity-list>div+div{border-top:1px solid #edf0e9}.capacity-list dt{font-size:12px;color:var(--muted)}.capacity-list dd{display:flex;align-items:baseline;gap:4px;font-size:11px;margin:0;color:var(--green)}.capacity-list strong{font-family:"Bahnschrift","Arial",sans-serif;font-size:21px;font-weight:550}
@media(max-width:600px){.capacity-list dt{font-size:11px}.capacity-list strong{font-size:20px}.capacity-list>div{padding:8px 0}}

/* 仅新账号实例注入第五个入口，旧公开页继续四项导航。 */
@media(max-width:600px){body[data-account-center="1"] .rail nav{grid-template-columns:repeat(5,minmax(0,1fr))}body[data-account-center="1"] .nav-link{font-size:9px}}
/* 正式购买链接沿用套餐按钮区域；点击只前往账户，保留可触达的最小高度。 */
a.purchase-button{display:flex;align-items:center;justify-content:center;min-height:44px;text-decoration:none;cursor:pointer;background:var(--green);color:#fff;border-color:var(--green)}