/* 晴天TV 官网 · 方案 B 晴空 */
:root{
  --bg:#F6F8FB; --surface:#FFFFFF; --sky:#E6F0FF; --line:#E3E8F0; --line2:#C9DAF5;
  --text:#14213A; --muted:#4A5872; --muted2:#5B6880;
  --primary:#1F6FEB; --primary-ink:#FFFFFF; --primary-dark:#123F8C; --link:#1A5FD0;
  --sun:#FFC53D; --sun-ink:#B57A00; --ok:#0F8A5F; --ok-bg:#E3F6EE; --warn:#9A5B00; --warn-bg:#FFF3D6; --err:#B42318; --err-bg:#FDECEA;
  --radius:24px; --radius-s:14px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,"Roboto Mono",monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.65}
a{color:var(--link);text-decoration:none}
a:hover{color:var(--primary-dark)}
img,svg{max-width:100%}
h1,h2,h3{line-height:1.25;margin:0}
p{margin:0}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.narrow{max-width:900px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;background:#fff;padding:8px 12px;border-radius:8px;z-index:10}
:focus-visible{outline:3px solid var(--primary);outline-offset:2px}

/* header */
.site-head{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.site-head .wrap{display:flex;align-items:center;gap:20px;min-height:68px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:21px}
.brand:hover{color:var(--text)}
.brand svg{width:34px;height:34px;flex:none}
.nav{display:flex;gap:26px;margin-left:auto;font-size:15px;flex-wrap:wrap}
.nav a{color:var(--muted);padding:8px 0}
.nav a[aria-current=page]{color:var(--link);font-weight:700}
.menu-btn{display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:var(--surface);align-items:center;justify-content:center}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;cursor:pointer;font:inherit;font-weight:700;border-radius:999px;padding:12px 24px;min-height:44px;transition:background .15s}
.btn-primary{background:var(--primary);color:var(--primary-ink)}
.btn-primary:hover{background:var(--primary-dark);color:#fff}
.btn-ghost{background:var(--surface);color:var(--text);border:1px solid var(--line2)}
.btn-ghost:hover{border-color:var(--primary);color:var(--text)}
.btn-lg{font-size:18px;padding:16px 34px}
.btn[disabled]{opacity:.55;cursor:not-allowed}
@media (max-width:760px){
  .nav{display:none;width:100%;flex-direction:column;gap:0;margin:0 0 8px}
  .nav.open{display:flex}
  .nav a{padding:12px 4px;border-top:1px solid var(--line)}
  .menu-btn{display:inline-flex}
  .head-cta{display:none}
}

/* hero */
.hero{background:var(--sky)}
.hero .wrap{padding-top:80px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:22px}
.chips{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.chip{background:var(--surface);border:1px solid var(--line2);color:var(--link);font-size:14px;padding:4px 14px;border-radius:999px;font-weight:500}
.hero h1{font-size:clamp(38px,6vw,64px);font-weight:900;letter-spacing:-1px}
.hero .lead{font-size:clamp(17px,2vw,20px);color:var(--muted);max-width:640px}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.devices{width:100%;max-width:860px;margin-top:36px;display:flex;align-items:flex-end;justify-content:center;gap:20px}
.tv{flex:0 1 600px;aspect-ratio:600/330;background:#fff;border:10px solid var(--text);border-bottom:0;border-radius:18px 18px 0 0;padding:4%;display:flex;flex-direction:column;gap:10px}
.tv .tabs{display:flex;gap:8px}.tv .tabs i{width:44px;height:18px;border-radius:999px;background:#E6EDF7}.tv .tabs i:first-child{width:54px;background:var(--sun)}
.tv .big{flex:1;border-radius:12px;background:#CFE0FA}
.tv .row{display:flex;gap:8px;height:28%}.tv .row i{flex:1;border-radius:10px}
.phone{flex:0 0 150px;aspect-ratio:150/260;background:#fff;border:8px solid var(--text);border-bottom:0;border-radius:26px 26px 0 0;padding:12px 8px;display:flex;flex-direction:column;gap:8px}
.phone i{border-radius:8px}
@media (max-width:600px){.phone{display:none}}

/* sections */
.section{padding:88px 0}
.section-sm{padding:56px 0}
.section-title{font-size:clamp(28px,4vw,40px);font-weight:900;text-align:center;margin-bottom:8px}
.section-sub{color:var(--muted);font-size:18px;text-align:center;margin-bottom:36px}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(340px,100%),1fr));gap:24px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:36px;display:flex;flex-direction:column;gap:12px}
.card .kicker{font-size:14px;color:var(--sun-ink);font-weight:700}
.card h2,.card h3{font-size:clamp(22px,2.6vw,30px);font-weight:900}
.card p{color:var(--muted)}

/* plans */
.plans{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:12px;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(170px,100%),1fr));gap:8px}
.plan{color:var(--text);border-radius:16px;padding:22px 20px;display:flex;flex-direction:column;gap:2px;border:2px solid transparent}
.plan:hover{border-color:var(--line2);color:var(--text)}
.plan .n{font-weight:700}.plan .p{font-size:34px;font-weight:800;letter-spacing:-.5px}.plan .m{font-size:14px;color:var(--muted2)}
.plan.hot{background:var(--primary);color:#fff}.plan.hot .m{color:#E6F0FF}.plan.hot:hover{color:#fff;border-color:var(--primary-dark)}
.pay-note{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:center;margin-top:22px;font-size:15px;color:var(--muted)}

.price-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(300px,100%),1fr));gap:20px}
.price-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px;display:flex;flex-direction:column;gap:8px;position:relative}
.price-card.hot{border:2px solid var(--primary)}
.price-card .badge{position:absolute;top:-13px;left:28px;background:var(--sun);color:#3A2A00;font-size:13px;font-weight:700;padding:2px 12px;border-radius:999px}
.price-card .n{font-size:18px;font-weight:700}
.price-card .p{font-size:50px;font-weight:800;letter-spacing:-1px;line-height:1.1}
.price-card .p small{font-size:18px;font-weight:500;color:var(--muted);letter-spacing:0}
.price-card .m{color:var(--muted)}
.price-card .btn{margin-top:12px}
.soldout{color:var(--err);font-weight:700;font-size:14px}

.includes{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(220px,100%),1fr));gap:10px 24px;color:var(--muted)}
.includes li{list-style:none;display:flex;gap:8px;align-items:flex-start}
.includes svg{flex:none;margin-top:4px}
ul.clean{padding:0;margin:0}

/* steps */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr));gap:24px}
.step{display:flex;gap:16px}
.step .num{width:44px;height:44px;border-radius:50%;background:var(--sun);color:#3A2A00;font-weight:800;font-size:20px;display:flex;align-items:center;justify-content:center;flex:none}
.step h3{font-size:19px;margin-bottom:4px}
.step p{color:var(--muted)}

/* faq */
.faq details{border-bottom:1px solid var(--line);padding:18px 0}
.faq summary{font-size:18px;font-weight:700;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--muted);font-weight:400;font-size:22px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq p{margin-top:10px;color:var(--muted)}

/* footer */
.site-foot{background:var(--text);color:#C3CCDB;font-size:14px}
.site-foot .wrap{padding-top:44px;padding-bottom:44px;display:flex;flex-wrap:wrap;gap:20px 32px}
.site-foot a{color:#C3CCDB}.site-foot a:hover{color:#fff}
.site-foot .about{flex:1 1 300px}
.site-foot .about b{display:block;color:#fff;font-size:19px;margin-bottom:4px}
.site-foot .links{display:flex;flex-wrap:wrap;gap:12px 28px;align-items:flex-start}

/* forms / checkout */
.page-head{padding:56px 0 24px;text-align:center}
.page-head h1{font-size:clamp(30px,4.5vw,48px);font-weight:900;margin-bottom:10px}
.page-head p{color:var(--muted);font-size:18px}
.layout{display:flex;flex-wrap:wrap;gap:28px;align-items:flex-start;padding-bottom:88px}
.layout .main{flex:999 1 560px;min-width:0;display:flex;flex-direction:column;gap:20px}
.layout .side{flex:1 1 320px;min-width:0}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px}
.panel h2{font-size:19px;margin-bottom:14px}
.panel .hint{color:var(--muted);font-size:14px;margin:-6px 0 14px}
.opt-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(130px,100%),1fr));gap:10px}
.opt{display:block;position:relative;cursor:pointer}
.opt input{position:absolute;opacity:0;inset:0;cursor:pointer}
.opt .box{display:block;border:2px solid var(--line);border-radius:14px;padding:14px 16px;background:var(--surface)}
.opt input:checked + .box{border-color:var(--primary);background:#EEF4FF}
.opt input:focus-visible + .box{outline:3px solid var(--primary);outline-offset:2px}
.opt input:disabled + .box{opacity:.5}
.opt .t{display:block;font-weight:700}.opt .v{display:block;font-size:24px;font-weight:800}.opt .s{display:block;font-size:13px;color:var(--muted2)}
.pay-list{display:flex;flex-direction:column;gap:10px}
.pay-list .box{display:flex;align-items:center;gap:14px}
.pay-ico{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;flex:none}
.pay-ico.alipay{background:#1677FF;color:#fff}.pay-ico.wxpay,.pay-ico.wechat{background:#07C160;color:#04210F}.pay-ico.paypal{background:#fff;color:#003087;border:1px solid var(--line)}
.field{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--muted);flex:1 1 240px}
.field input{font:inherit;font-size:16px;color:var(--text);background:#fff;border:1px solid #B9C6DA;border-radius:12px;padding:12px 14px;min-height:48px}
.field input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #CFE0FA}
.fields{display:flex;flex-wrap:wrap;gap:16px}
.summary{position:sticky;top:88px;display:flex;flex-direction:column;gap:12px}
.summary .row{display:flex;justify-content:space-between;gap:12px;color:var(--muted)}
.summary .total{border-top:1px solid var(--line);padding-top:14px;display:flex;justify-content:space-between;align-items:baseline}
.summary .total b{font-size:34px}
.note{font-size:13px;color:var(--muted);text-align:center}
.msg{border-radius:12px;padding:12px 14px;font-size:15px}
.msg.err{background:var(--err-bg);color:var(--err)}
.msg.ok{background:var(--ok-bg);color:var(--ok)}
.msg.warn{background:var(--warn-bg);color:var(--warn)}
[hidden]{display:none!important}

/* result */
.result{max-width:900px;margin:0 auto;padding:56px 24px 88px;display:flex;flex-direction:column;gap:24px}
.result-top{text-align:center;display:flex;flex-direction:column;align-items:center;gap:10px}
.circle{width:72px;height:72px;border-radius:50%;display:flex;align-items:center;justify-content:center}
.circle.ok{background:var(--ok-bg)}.circle.wait{background:var(--sky)}
.code-box{background:var(--surface);border:2px solid var(--primary);border-radius:var(--radius);padding:32px 24px;display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center}
.code{font-family:var(--mono);font-size:clamp(26px,5vw,44px);font-weight:700;letter-spacing:3px;word-break:break-all}
.codes{display:flex;flex-direction:column;gap:10px;width:100%}
.spin{width:36px;height:36px;border:4px solid #CFE0FA;border-top-color:var(--primary);border-radius:50%;animation:sp 1s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}
.qr{background:#fff;padding:12px;border-radius:12px;border:1px solid var(--line);display:inline-block}

/* orders */
.order{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:10px}
.order .top{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tag{font-size:13px;font-weight:700;padding:1px 10px;border-radius:999px}
.tag.ok{background:var(--ok-bg);color:var(--ok)}.tag.wait{background:var(--warn-bg);color:var(--warn)}.tag.off{background:#EEF1F5;color:var(--muted)}
.order .meta{margin-left:auto;color:var(--muted);font-size:14px}
.code-line{display:flex;flex-wrap:wrap;gap:12px;align-items:center;background:var(--bg);border-radius:10px;padding:10px 14px}
.code-line span{font-family:var(--mono);font-size:20px;letter-spacing:2px;flex:1;word-break:break-all}

/* article */
.article-wrap{display:flex;flex-wrap:wrap;gap:48px;align-items:flex-start;padding:40px 0 88px}
.article{flex:999 1 640px;min-width:0;font-size:17px;line-height:1.85}
.article h1{font-size:clamp(30px,4.5vw,44px);font-weight:900;margin:0 0 10px;line-height:1.3}
.article h2{font-size:26px;margin:36px 0 12px}
.article p,.article ol,.article ul{margin:0 0 16px;color:#2B3954}
.article li{margin-bottom:6px}
.crumbs{font-size:14px;color:var(--muted);margin-bottom:16px}
.crumbs a{color:var(--muted)}
.updated{color:var(--muted);font-size:14px;margin-bottom:24px}
.aside{flex:1 1 260px;min-width:0;display:flex;flex-direction:column;gap:18px;font-size:15px}
.aside .panel{display:flex;flex-direction:column;gap:8px}
.aside .panel b{font-size:16px}
.callout{background:var(--sky);border-radius:14px;padding:16px 18px;color:#20365E}
.dl-card{display:flex;flex-wrap:wrap;gap:16px;align-items:center}
.dl-card .info{flex:1 1 220px}
.app-ico{width:56px;height:56px;border-radius:14px;background:var(--sun);display:flex;align-items:center;justify-content:center;flex:none}
.table-box{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:#fff;margin-bottom:16px}
table{width:100%;min-width:480px;border-collapse:collapse;font-size:15px}
th,td{padding:12px 16px;text-align:left;border-top:1px solid var(--line)}
thead th{border-top:0;background:var(--bg)}
.guide-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr));gap:16px}
.guide-list a{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px;color:var(--text);display:flex;flex-direction:column;gap:6px}
.guide-list a:hover{border-color:var(--primary)}
.guide-list b{font-size:18px}.guide-list span{color:var(--muted);font-size:15px}

/* 1 天体验入口 */
.trial{display:flex;flex-wrap:wrap;align-items:center;gap:6px 18px;margin-top:16px;background:#FFF6DC;border:1px solid #F3D27A;border-radius:18px;padding:16px 22px;color:#3A2A00}
.trial:hover{color:#3A2A00;border-color:#E0A800}
.trial-t{font-weight:800}
.trial b{font-size:18px}
.trial-go{margin-left:auto;font-weight:700;color:#8A5A00}