:root{--bg:#f5f8fc;--ink:#0c2447;--muted:#5d6e88;--line:#dbe5f1;--accent:#126bc9;--selected:#edf6ff;--white:#fff;--radius:9px;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);font-synthesis:none}*{box-sizing:border-box}body{margin:0;background:var(--bg);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}html{scroll-behavior:smooth;scroll-padding-top:24px}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.35;letter-spacing:-.035em}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,label,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}fieldset{margin:0;padding:0;border:0;min-width:0}legend{padding:0}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip-link{position:absolute;top:-80px;left:20px;z-index:20;background:var(--white);padding:12px}.skip-link:focus{top:8px}.preview-banner{min-height:36px;text-align:center;background:#e5f1fe;color:#234b7d;font-size:13px;padding:7px 20px}.preview-banner span{margin:0 8px}.site-header{background:var(--white);border-bottom:1px solid var(--line)}.header-inner{max-width:1440px;margin:0 auto;padding:0 32px;height:76px;display:flex;align-items:center;gap:64px}.brand{display:block;flex-shrink:0}.brand img{display:block;width:146px;height:auto}.header-inner nav{display:flex;gap:34px;font-size:15px;font-weight:500}.header-inner a:hover{color:var(--accent)}.back-link{margin-left:auto;display:inline-flex;align-items:center;gap:10px;font-size:15px}.icon{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.container{width:calc(100% - 164px);max-width:1372px;margin:0 auto}.page-heading{padding:42px 0 28px}.page-heading h1{font-size:46px;font-weight:730;letter-spacing:-.045em}.page-heading p{color:var(--muted);font-size:21px;margin-top:8px;line-height:1.65}.purchase-row{display:flex;align-items:center;justify-content:space-between;gap:24px;margin:0 0 18px}.purchase-options{display:flex;align-items:center;gap:28px}.purchase-options legend{float:left;margin-right:28px;line-height:46px;font-weight:600}.segmented{display:flex;gap:6px}.segmented label{position:relative;cursor:pointer}.segmented input{position:absolute;opacity:0;width:100%;height:100%;margin:0}.segmented span{display:flex;align-items:center;justify-content:center;min-width:146px;height:46px;padding:0 22px;border:1px solid #cbdced;border-radius:6px;background:#fff;color:#3d5576;transition:background .15s,color .15s}.segmented input:checked+span{background:var(--accent);color:#fff;border-color:var(--accent);font-weight:600}.segmented input:focus-visible+span{outline:3px solid var(--accent);outline-offset:4px}.purchase-hint{font-size:15px;color:#435e81}.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--radius);background:var(--white);overflow:hidden}.plan{display:flex;align-items:flex-start;position:relative;gap:24px;padding:30px 32px 30px;cursor:pointer;transition:background .16s;min-width:0}.plan+.plan{border-left:1px solid var(--line)}.plan:hover{background:#f6faff}.plan:has(input:checked){background:var(--selected)}.plan:has(input:focus-visible){box-shadow:inset 0 0 0 3px var(--accent)}.plan-radio{appearance:none;-webkit-appearance:none;position:relative;flex:0 0 27px;width:27px;height:27px;margin:0;margin-top:3px;border:1.5px solid #adc5e0;border-radius:50%;background:#fff;cursor:pointer}.plan-radio:checked{border-color:var(--accent)}.plan-radio:checked:after{content:"";position:absolute;inset:5px;background:var(--accent);border-radius:50%}.plan-radio:focus-visible{outline:none}.plan-content{flex:1;min-width:0}.plan h2{font-size:26px;font-weight:680;letter-spacing:-.03em}.plan-tagline{font-size:17px;color:var(--muted);margin-top:5px;white-space:nowrap}.plan-price{display:flex;align-items:baseline;gap:2px;margin-top:9px;white-space:nowrap;line-height:1.4;font-variant-numeric:tabular-nums}.currency{font-size:26px;font-weight:650}.plan-price strong{font-size:54px;font-weight:720;letter-spacing:-.035em}.price-period{font-size:17px;font-weight:450;margin-left:7px;letter-spacing:0}.price-detail{color:var(--muted);font-size:16px;margin-top:2px;min-height:27px}.plan-quota{border-top:1px solid var(--line);margin-top:17px;padding-top:14px;display:flex;align-items:baseline;gap:10px}.plan-quota strong{font-size:32px;font-weight:700;letter-spacing:-.03em}.plan-quota span{font-size:17px}.plan-features{list-style:none;margin:5px 0 0;padding:0;color:var(--muted);font-size:17px;line-height:1.75}.order-bar{display:flex;align-items:center;gap:26px;background:#142e50;color:white;border-radius:7px;padding:18px 30px;margin-top:13px;min-height:89px}.selected-plan{min-width:245px;padding-right:44px;border-right:1px solid #56708f}.selected-plan p{font-size:16px;font-weight:550;display:flex;align-items:baseline;gap:13px}.selected-plan strong{font-size:23px}.selected-plan>span{font-size:15px;color:#e0ebfa}.order-total{margin-left:auto;display:flex;align-items:baseline;gap:18px;white-space:nowrap}.order-total>span{font-size:15px;font-weight:550}.order-total strong{font-size:34px;letter-spacing:-.025em;font-variant-numeric:tabular-nums}.primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;gap:14px;min-height:52px;border-radius:7px;padding:12px 27px;font-size:16px;font-weight:600;line-height:1.4;border:1px solid transparent}.primary-button{background:#0875ed;color:white}.primary-button:hover{background:#0962c5}.secondary-button{background:#fff;color:var(--ink);border-color:#cbdced}.secondary-button:hover{background:#edf6ff}.primary-button:active,.secondary-button:active{transform:translateY(1px)}.cycle-rules{display:grid;grid-template-columns:1fr 1fr;background:var(--white);border-radius:var(--radius);margin-top:18px;padding:24px 34px;gap:34px}.cycle-rules>div+div{border-left:1px solid var(--line);padding-left:34px}.cycle-rules h2{font-size:23px;font-weight:670}.cycle-rules p{color:var(--muted);font-size:15px;line-height:1.8;margin-top:6px}.rules-link{display:inline-flex;gap:12px;align-items:center;color:var(--accent);font-size:15px;font-weight:550;margin-top:6px}.rules-link:hover{text-decoration:underline}.rules-link .icon{width:17px}.faq{display:grid;grid-template-columns:1fr 2fr;gap:70px;padding:54px 0 32px;scroll-margin-top:24px}.faq-heading h2{font-size:26px;font-weight:650}.faq-heading p{font-size:15px;color:var(--muted);margin-top:8px}.faq details{border-top:1px solid var(--line)}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{display:flex;align-items:center;justify-content:space-between;gap:20px;font-weight:550;font-size:16px;cursor:pointer;list-style:none;padding:19px 0;line-height:1.6}.faq summary::-webkit-details-marker{display:none}.faq summary .icon{width:18px}.faq details[open] summary .icon{transform:rotate(180deg)}.faq details p{font-size:15px;color:var(--muted);line-height:1.9;padding:0 30px 22px 0}.footer{display:flex;justify-content:center;align-items:center;gap:24px;padding:24px 0 30px;border-top:1px solid var(--line);font-size:13px;color:#6f83a0}.footer a{border-left:1px solid #bbcbe0;padding-left:24px;white-space:nowrap}.footer a:hover{color:var(--accent)}.preview-feedback{padding:14px 20px;margin-top:13px;border:1px solid #b9d5ef;border-radius:7px;color:#245483;background:#edf6ff;font-size:14px}.noscript{margin:30px;text-align:center}dialog{width:min(560px,calc(100% - 32px));max-height:calc(100dvh - 40px);overflow:auto;border:1px solid var(--line);border-radius:14px;padding:30px;color:var(--ink);background:#fff;box-shadow:0 24px 80px #071e4933}dialog::backdrop{background:#0c244762;backdrop-filter:blur(3px)}dialog h2{font-size:27px;padding-right:35px}#dialog-description{font-size:15px;color:var(--muted);margin:7px 0 20px}.close-button{position:absolute;right:16px;top:16px;width:36px;height:36px;display:grid;place-items:center;border:0;border-radius:50%;background:none;color:#6d7b92}.close-button:hover{background:var(--bg)}.order-details{margin:0}.order-details>div{display:flex;justify-content:space-between;align-items:baseline;gap:20px;margin:11px 0}.order-details dt{font-size:15px;color:var(--muted)}.order-details dd{margin:0;font-size:16px;font-weight:550;text-align:right}.order-details .dialog-price{font-size:28px;color:var(--accent);font-variant-numeric:tabular-nums}.cycle-preview{margin-top:22px;padding:18px 20px;background:#f2f7fd;border-radius:8px}.cycle-preview h3{font-size:17px;letter-spacing:0}.cycle-preview p{font-size:13px;color:var(--muted);line-height:1.75;margin-top:4px}.cycle-preview dl{margin:10px 0}.cycle-preview dl>div{display:flex;gap:25px;margin:5px 0;font-size:14px}.cycle-preview dt{color:var(--muted)}.cycle-preview dd{margin:0;font-variant-numeric:tabular-nums}.payment-note{font-size:13px;color:var(--muted);margin:18px 0;line-height:1.8}.dialog-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px}.dialog-actions button{padding-inline:12px}.modal-open{overflow:hidden}[hidden]{display:none!important}
@media(min-width:1600px){.page-heading{padding-top:54px}.plan{padding:36px}.cycle-rules{margin-top:22px}}
@media(max-width:1250px){.container{width:calc(100% - 72px)}.header-inner{padding:0 36px;gap:44px}.page-heading h1{font-size:40px}.plan{padding:25px 22px;gap:15px}.plan h2{font-size:23px}.plan-tagline,.plan-features,.plan-quota span{font-size:15px}.plan-price strong{font-size:46px}.price-period{font-size:15px}.price-detail{font-size:15px}.plan-quota strong{font-size:29px}.plan-radio{width:24px;height:24px;flex-basis:24px}.selected-plan{min-width:220px;padding-right:28px}.order-bar{gap:18px;padding:18px 24px}.order-total{gap:12px}.order-total strong{font-size:30px}.faq{gap:40px}}
@media(max-width:950px){.container{width:calc(100% - 48px)}.header-inner{padding:0 24px;gap:35px}.header-inner nav{gap:24px;font-size:14px}.plan{display:block;padding:24px 20px}.plan-radio{position:absolute;right:18px;top:23px}.plan h2{font-size:21px;padding-right:22px}.plan-tagline{font-size:14px;white-space:normal;min-height:46px;margin-top:8px}.plan-price{margin-top:5px}.plan-price strong{font-size:43px}.plan-features{font-size:14px}.price-detail{font-size:14px}.plan-quota{gap:8px}.plan-quota strong{font-size:28px}.plan-quota span{font-size:14px}.order-bar{gap:18px;padding:18px}.selected-plan{padding-right:20px;min-width:180px}.selected-plan strong{font-size:20px}.selected-plan p{font-size:14px;gap:8px}.selected-plan>span{font-size:13px}.order-total{gap:8px}.order-total>span{font-size:13px}.order-total strong{font-size:28px}.order-bar .primary-button{font-size:15px;padding:13px 18px;gap:10px}.cycle-rules{padding:24px;gap:24px}.cycle-rules>div+div{padding-left:24px}.cycle-rules h2{font-size:21px}.cycle-rules p{font-size:14px}.purchase-hint{font-size:13px}.segmented span{min-width:117px}.purchase-options legend{margin-right:20px}.faq{grid-template-columns:1fr;gap:22px;padding-top:38px}}
@media(max-width:660px){.preview-banner{font-size:12px;min-height:32px;padding:6px 12px}.header-inner{height:68px;padding:0 20px;gap:16px}.brand img{width:121px}.header-inner nav{display:none}.back-link{font-size:13px;gap:7px}.back-link .icon{width:18px}.container{width:calc(100% - 40px)}.page-heading{padding:30px 0 24px}.page-heading h1{font-size:31px;max-width:370px;line-height:1.4}.page-heading p{font-size:15px;line-height:1.8;max-width:340px;margin-top:10px}.purchase-row{display:block;margin-bottom:16px}.purchase-options{gap:14px}.purchase-options legend{font-size:14px;line-height:42px;margin-right:16px}.segmented{gap:5px;flex:1}.segmented label{flex:1}.segmented span{min-width:0;padding:0 15px;height:42px;font-size:14px}.purchase-hint{margin-top:10px;font-size:12px}.plans{grid-template-columns:1fr}.plan{padding:24px 26px;display:flex;gap:18px}.plan+.plan{border-left:0;border-top:1px solid var(--line)}.plan-radio{position:relative;right:auto;top:auto;margin-top:3px}.plan h2{font-size:23px;padding:0}.plan-tagline{font-size:14px;min-height:0;margin-top:4px}.plan-price{margin-top:8px}.plan-price strong{font-size:47px}.currency{font-size:23px}.price-period{font-size:15px}.price-detail{font-size:14px;min-height:0}.plan-quota{margin-top:15px;padding-top:12px}.plan-quota strong{font-size:28px}.plan-quota span{font-size:15px}.plan-features{font-size:14px;margin-top:3px}.order-bar{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:16px 12px;padding:20px;margin-top:16px}.selected-plan{min-width:0;padding:0;border:0}.selected-plan p{font-size:12px;gap:7px}.selected-plan strong{font-size:18px}.selected-plan>span{font-size:12px}.order-total{display:block;text-align:right;margin:0}.order-total>span{display:block;font-size:11px}.order-total strong{display:block;font-size:28px}.order-bar .primary-button{grid-column:1/-1;width:100%;min-height:48px;font-size:15px}.cycle-rules{grid-template-columns:1fr;padding:24px;gap:22px;margin-top:16px}.cycle-rules>div+div{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:22px}.cycle-rules h2{font-size:21px}.cycle-rules p{font-size:14px}.rules-link{font-size:14px}.faq{padding-top:34px;gap:18px;padding-bottom:25px}.faq-heading h2{font-size:24px}.faq-heading p{font-size:14px}.faq summary{font-size:15px;padding-block:18px}.faq details p{font-size:14px;padding-right:4px}.footer{font-size:11px;display:block;text-align:center;padding:20px 0 26px}.footer>a{display:block;border:0;padding:6px 0 0;font-size:13px}dialog{padding:26px 22px;border-radius:12px;max-height:calc(100dvh - 24px)}dialog h2{font-size:24px}.cycle-preview{padding:15px}.cycle-preview dl>div{gap:15px;font-size:13px}.dialog-actions{gap:10px}.dialog-actions button{font-size:15px}.payment-note{font-size:12px}.preview-feedback{font-size:13px;padding:12px 16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
.payment-method{margin-top:20px;border:1px solid var(--line);border-radius:8px;padding:16px 18px}.payment-method h3{font-size:16px;letter-spacing:0}.payment-method-name{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:10px}.payment-method-name strong{font-size:15px}.payment-method-name span{font-size:12px;color:#5d6e88;background:#edf2f8;border-radius:4px;padding:2px 8px;white-space:nowrap}.payment-method p{font-size:12px;color:var(--muted);margin:7px 0 12px}.payment-method button{width:100%;font-size:15px;min-height:44px}.payment-method button:disabled{background:#e7eff8;color:#617895;border-color:#d7e3f1;cursor:not-allowed;transform:none}