:root{
  --bg:#ffffff; --ink:#16203a; --mut:#5b6678; --line:#e6ebf3;
  --brand:#1f3a8a; --brand2:#0e7490; --acc:#b45309; --ok:#15803d; --warn:#b91c1c;
  --soft:#f5f8fc; --soft2:#eef3fa;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:15px}
.wrap{max-width:1040px;margin:0 auto;padding:0 22px}
header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar{max-width:1040px;margin:0 auto;padding:12px 22px;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:17px;color:var(--brand);letter-spacing:.3px}
.logo .dot{width:11px;height:11px;border-radius:3px;background:linear-gradient(135deg,var(--brand),var(--brand2))}
.lang{display:flex;gap:4px;background:var(--soft2);border-radius:999px;padding:3px}
.lang button{border:0;background:transparent;color:var(--mut);font-size:13px;padding:5px 11px;border-radius:999px;cursor:pointer;font-weight:600}
.lang button.on{background:#fff;color:var(--brand);box-shadow:0 1px 3px rgba(0,0,0,.08)}
.bar-right{display:flex;align-items:center;gap:10px}
.nav-links{display:flex;align-items:center;gap:10px}
.navbuilder{color:var(--brand);text-decoration:none;font-weight:600;font-size:14px;padding:7px 14px;border:1px solid var(--line);border-radius:999px;background:#fff}
.navbuilder:hover{background:var(--soft2)}
.card .goto{display:inline-block;margin-top:14px;background:var(--brand);color:#fff;text-decoration:none;padding:9px 16px;border-radius:9px;font-weight:600;font-size:14px}
.card .goto:hover{background:#162d6e}
.hero{padding:64px 0 40px;text-align:center;background:radial-gradient(1200px 400px at 50% -10%,#eaf1ff 0,transparent 60%)}
.eyebrow{display:inline-block;background:var(--soft2);color:var(--brand2);border:1px solid var(--line);border-radius:999px;padding:4px 14px;font-size:13px;font-weight:600;margin-bottom:18px}
h1{font-size:46px;line-height:1.1;margin:0 0 14px;letter-spacing:-.5px}
h1 .hl{background:linear-gradient(135deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:17px;color:var(--mut);max-width:680px;margin:0 auto 26px}
.cta{display:inline-block;background:var(--brand);color:#fff;text-decoration:none;padding:13px 28px;border-radius:10px;font-weight:700;font-size:15px;box-shadow:0 6px 18px rgba(31,58,138,.25)}
.cta:hover{background:#162d6e}
.cta.ghost{background:#fff;color:var(--brand);border:1px solid var(--line);box-shadow:none;margin-left:10px}
.kpis{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:34px}
.kpis div{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:14px 20px;min-width:140px}
.kpis b{display:block;font-size:22px;color:var(--brand)}
.kpis span{font-size:12px;color:var(--mut)}
section{padding:54px 0;border-bottom:1px solid var(--line)}
h2{font-size:26px;margin:0 0 8px;color:var(--brand)}
.sub{color:var(--mut);margin:0 0 26px;font-size:15px}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:1fr 1fr}
.g3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--soft);border:1px solid var(--line);border-radius:14px;padding:20px 22px}
.card.core{border-left:4px solid var(--brand2);background:#f1f8fb}
.card.shellA{border-left:4px solid var(--ok);background:#f1faf3}
.card.shellB{border-left:4px solid var(--acc);background:#fdf6ec}
.card h3{margin:0 0 8px;font-size:18px;color:var(--ink)}
.card p{margin:6px 0;color:var(--mut);font-size:14px}
.tag{display:inline-block;font-size:12px;font-weight:700;padding:2px 9px;border-radius:6px;margin-bottom:10px}
.tag.core{background:#d7eef5;color:var(--brand2)}
.tag.a{background:#d8f0df;color:var(--ok)}
.tag.b{background:#fbe9cf;color:var(--acc)}
ul.clean{margin:8px 0 0;padding-left:18px}
ul.clean li{margin:5px 0;font-size:14px;color:var(--ink)}
.diagram{background:var(--soft);border:1px solid var(--line);border-radius:14px;padding:18px;margin-top:8px}
svg{display:block;width:100%;height:auto}
.note{font-size:13px;color:var(--mut)}
.accent{color:var(--acc);font-weight:700}
.banner{background:linear-gradient(135deg,#1f3a8a,#0e7490);color:#fff;border-radius:14px;padding:26px 28px;margin-top:8px}
.banner h3{color:#fff;margin:0 0 8px;font-size:20px}
.banner p{color:#dce8ff;margin:6px 0;font-size:14px}
.banner .pill{display:inline-block;background:rgba(255,255,255,.16);border-radius:999px;padding:3px 12px;font-size:12px;margin:4px 6px 0 0}
form.wait{background:var(--soft);border:1px solid var(--line);border-radius:14px;padding:24px;margin-top:8px}
form.wait label{display:block;font-size:13px;font-weight:600;margin:12px 0 5px;color:var(--ink)}
form.wait input,form.wait select,form.wait textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:9px;font-size:16px;font-family:inherit;background:#fff}
form.wait button{margin-top:16px;width:100%;background:var(--brand);color:#fff;border:0;padding:13px;border-radius:10px;font-weight:700;font-size:15px;cursor:pointer}
form.wait button:hover{background:#162d6e}
.okmsg{display:none;background:#f1faf3;border:1px solid #bfe6c8;color:var(--ok);padding:12px 14px;border-radius:9px;margin-top:14px;font-size:14px}
/* 双入口卡片 */
.heroBtns{margin-top:4px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta.big{display:inline-flex;flex-direction:column;align-items:center;gap:3px;padding:14px 36px;margin:0}
.cta.big b{font-size:16px;font-weight:800}
.cta.big span{display:block;font-size:12.5px;font-weight:500;opacity:.82}
/* 两条路 · 各自卖点 */
.paths{display:grid;grid-template-columns:1fr 1fr;gap:14px;max-width:780px;margin:30px auto 0;text-align:left}
.path{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:16px 18px;border-top:3px solid var(--ok)}
.path.pb{border-top-color:var(--acc)}
.path h4{margin:0 0 8px;font-size:14px;color:var(--brand)}
.path ul{margin:0;padding:0;list-style:none}
.path li{position:relative;padding-left:22px;margin:6px 0;font-size:13.5px;color:var(--ink)}
.path li::before{content:"✓";position:absolute;left:0;top:0;font-weight:800;color:var(--ok)}
.path.pb li::before{color:var(--acc)}
.door{display:flex;flex-direction:column;align-items:flex-start}
.door .what{font-size:15px;color:var(--ink);margin:0 0 10px}
.door .who{font-size:13px;color:var(--mut);background:rgba(255,255,255,.7);border:1px dashed var(--line);border-radius:9px;padding:7px 11px;margin:0 0 12px}
.door ol.steps{margin:0 0 12px;padding-left:20px;counter-reset:s;list-style:none}
.door ol.steps li{position:relative;margin:7px 0;font-size:14px;color:var(--ink);padding-left:4px}
.door ol.steps li::before{counter-increment:s;content:counter(s);position:absolute;left:-20px;top:1px;width:17px;height:17px;border-radius:50%;background:var(--brand2);color:#fff;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center}
.door .price{font-size:13px;color:var(--mut);margin:0 0 4px}
.door .goto{margin-top:auto}
.status{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--mut);background:rgba(255,255,255,.75);border:1px solid var(--line);border-radius:9px;padding:8px 12px;margin:12px 0 2px;flex-wrap:wrap}
.status .dot2{width:8px;height:8px;border-radius:50%;background:var(--mut);flex:none}
.status .dot2.ok{background:var(--ok)}
.status .dot2.warn{background:var(--acc)}
footer a{color:var(--mut);text-decoration:underline}
footer{padding:34px 0 60px;color:var(--mut);font-size:13px;text-align:center}
section[id]{scroll-margin-top:86px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--brand2);outline-offset:2px;border-radius:8px}
.menu-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--brand);border-radius:9px;width:42px;height:38px;font-size:17px;line-height:1;cursor:pointer;align-items:center;justify-content:center}
.menu-toggle[aria-expanded="true"]{background:var(--soft2)}
@media(max-width:860px){
  .nav-links{display:none;position:absolute;top:100%;right:12px;left:12px;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;box-shadow:0 18px 44px rgba(16,32,80,.18);z-index:40}
  .nav-links.open{display:flex}
  .nav-links .navbuilder{display:block;text-align:center;margin:0}
  .menu-toggle{display:inline-flex}
}
@media(max-width:760px){
  .wrap{padding:0 16px}
  .bar{padding:10px 16px}
  h1{font-size:30px}
  .hero{padding:44px 0 30px}
  .cta,.cta.ghost{display:block;width:100%;margin:10px 0 0;box-sizing:border-box}
  .cta.ghost{margin-left:0}
  .kpis{gap:10px;margin-top:26px}
  .kpis div{flex:1 1 calc(50% - 10px);min-width:0;padding:12px 14px}
  .kpis b{font-size:20px}
  .g2,.g3{grid-template-columns:1fr}
  .diagram{overflow-x:auto;-webkit-overflow-scrolling:touch}
  .diagram svg{width:660px;max-width:none}
  form.wait{padding:18px}
  section{padding:40px 0}
}
@media(max-width:760px){
  .heroBtns{margin-top:8px}
  .door .who,.status{font-size:12.5px}
  .door ol.steps li{font-size:13.5px}
  .paths{grid-template-columns:1fr;max-width:none}
}

/* ============ v2 · 全站组件（2026-09-16 布局规划落地） ============ */
/* 主导航 */
.nav-item{color:var(--mut);text-decoration:none;font-weight:600;font-size:14px;padding:7px 10px;border-radius:9px}
.nav-item:hover{color:var(--brand);background:var(--soft2)}
.nav-item.hot{color:var(--brand);font-weight:700}
.nav-cta{background:var(--brand);color:#fff!important;padding:8px 16px;border-radius:999px;font-weight:700}
.nav-cta:hover{background:#162d6e}
@media(max-width:860px){.nav-links .nav-item,.nav-links .nav-cta{display:block;text-align:center;margin:0}}

/* Hero 双 CTA（API 主线更重） */
.doorCards{display:grid;grid-template-columns:1.15fr 1fr;gap:16px;max-width:820px;margin:26px auto 0;text-align:left}
.doorCard{border-radius:16px;padding:22px 24px;border:1px solid var(--line);background:var(--soft);text-decoration:none;color:inherit;display:block;transition:transform .15s ease,box-shadow .15s ease}
.doorCard:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(16,32,80,.10)}
.doorCard.main{background:linear-gradient(135deg,#1f3a8a,#0e7490);color:#fff;border:0}
.doorCard.main .who{color:#cfe0ff;border-color:rgba(255,255,255,.3)}
.doorCard.main h3{color:#fff}
.doorCard h3{margin:0 0 6px;font-size:19px;color:var(--brand)}
.doorCard .sub2{font-size:13.5px;opacity:.85;margin:0 0 12px}
.doorCard ul{margin:0 0 14px;padding:0;list-style:none}
.doorCard li{font-size:13.5px;margin:5px 0;padding-left:20px;position:relative}
.doorCard li::before{content:"✓";position:absolute;left:0;font-weight:800}
.doorCard.main li::before{color:#7fe0b0}
.doorCard .who{font-size:12.5px;color:var(--mut);border:1px dashed var(--line);border-radius:9px;padding:6px 10px;background:rgba(255,255,255,.55)}
.doorCard .go{display:inline-block;margin-top:12px;font-weight:700;font-size:14px}
.doorCard.main .go{color:#ffd98a}
.doorCard:not(.main) .go{color:var(--brand)}
@media(max-width:760px){.doorCards{grid-template-columns:1fr}}

/* 信任条 */
.trust{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:26px}
.trust div{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 15px;font-size:13px;color:var(--ink);font-weight:600}
.trust div::before{content:"✓";color:var(--ok);font-weight:800;margin-right:6px}

/* 六档价格卡（横向滑动，移动端必须横滑不竖排） */
.tier-scroll{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(158px,1fr);gap:12px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding:4px 2px 12px;scroll-snap-type:x mandatory}
.tier{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 16px 14px;scroll-snap-align:start;position:relative;min-width:0}
.tier.hot{border:2px solid var(--brand);box-shadow:0 8px 22px rgba(31,58,138,.14)}
.tier .badge{position:absolute;top:-11px;left:12px;background:var(--brand);color:#fff;font-size:11px;font-weight:700;padding:2px 10px;border-radius:999px}
.tier h4{margin:2px 0 2px;font-size:14px;color:var(--ink)}
.tier .res{font-size:11.5px;color:var(--mut)}
.tier .price{font-size:24px;font-weight:800;color:var(--brand);margin:8px 0 0}
.tier .price span{font-size:12px;font-weight:600;color:var(--mut)}
.tier .vnd{font-size:12px;color:var(--mut)}
.tier .use{font-size:12px;color:var(--mut);margin-top:8px;line-height:1.5}
@media(min-width:900px){.tier-scroll{grid-auto-flow:column;grid-auto-columns:1fr;overflow:visible}}

/* 对比表 */
.cmp{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;font-size:14px}
.cmp th,.cmp td{padding:11px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.cmp th{background:var(--soft2);font-size:13px;color:var(--brand)}
.cmp td:first-child{font-weight:600;color:var(--ink)}
.cmp .y{color:var(--ok);font-weight:800}
.cmp .n{color:#b45309;font-weight:800}
.cmp .m{color:var(--mut)}
.cmp .us{background:#f1f8fb;font-weight:700;color:var(--brand2)}
.cmp small{display:block;font-weight:400;color:var(--mut);font-size:11.5px}

/* 接入 3 步 */
.steps3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.step3{background:var(--soft);border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.step3 b{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--brand);color:#fff;font-size:14px;margin-bottom:8px}
.step3 h4{margin:0 0 6px;font-size:15px}
.step3 p{margin:0;font-size:13px;color:var(--mut)}
.step3 a{color:var(--brand);font-weight:600;font-size:13px}
@media(max-width:760px){.steps3{grid-template-columns:1fr}}

/* FAQ */
details.faq{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 16px;margin-bottom:10px}
details.faq summary{cursor:pointer;font-weight:600;font-size:14.5px;padding:13px 0;list-style:none}
details.faq summary::before{content:"+";color:var(--brand2);font-weight:800;margin-right:9px;font-size:16px}
details.faq[open] summary::before{content:"–"}
details.faq p{margin:0 0 13px;font-size:13.5px;color:var(--mut)}

/* 估价器 */
.est{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 22px;box-shadow:0 10px 30px rgba(16,32,80,.07)}
.est .row{display:flex;gap:10px;flex-wrap:wrap}
.est .fld{flex:1;min-width:130px}
.est label{display:block;font-size:12px;font-weight:700;color:var(--mut);margin-bottom:4px}
.est select,.est input{width:100%;padding:10px 11px;border:1px solid var(--line);border-radius:9px;font-size:16px;font-family:inherit;background:#fff}
.est .out{margin-top:14px;background:linear-gradient(135deg,#1f3a8a,#0e7490);color:#fff;border-radius:12px;padding:14px 18px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}
.est .out .big{font-size:26px;font-weight:800}
.est .out .small{font-size:12.5px;opacity:.85}
.est .out .copy{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);color:#fff;font-size:12.5px;padding:7px 13px;border-radius:999px;cursor:pointer;font-weight:600}

/* 三档客户价 */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.plan{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.plan.hot{border:2px solid var(--brand2)}
.plan h4{margin:0 0 4px;font-size:15px;color:var(--brand)}
.plan .cond{font-size:12px;color:var(--mut);margin-bottom:10px}
.plan .off{font-size:26px;font-weight:800;color:var(--brand2)}
.plan ul{margin:10px 0 0;padding-left:18px;font-size:13px;color:var(--mut)}
.plan li{margin:4px 0}
@media(max-width:760px){.plans{grid-template-columns:1fr}}

/* 文档布局 */
.doclay{display:grid;grid-template-columns:210px 1fr;gap:26px;align-items:start}
.docside{position:sticky;top:76px;background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:14px;font-size:13px}
.docside a{display:block;color:var(--mut);text-decoration:none;padding:5px 9px;border-radius:7px;font-weight:600}
.docside a:hover{color:var(--brand);background:#fff}
.docside .grp{font-size:11px;font-weight:800;color:var(--brand2);text-transform:uppercase;letter-spacing:.6px;margin:10px 9px 3px}
.docbody{min-width:0}
.docbody p,.docbody li,.docbody code,.docbody pre{overflow-wrap:anywhere;word-break:break-word}
.docbody h2{scroll-margin-top:90px}
.codebox{position:relative;background:#101a30;color:#d7e3ff;border-radius:12px;margin:12px 0;font-size:12.5px}
.codebox .langtag{display:flex;gap:6px;padding:8px 12px 0}
.codebox .langtag button{background:rgba(255,255,255,.08);border:0;color:#9db4e8;font-size:11.5px;padding:4px 11px;border-radius:999px;cursor:pointer;font-weight:600}
.codebox .langtag button.on{background:#2c4a8f;color:#fff}
.codebox pre{margin:0;padding:12px 14px;overflow-x:auto;line-height:1.55;font-family:"SFMono-Regular",Consolas,monospace}
.codebox .copybtn{position:absolute;top:8px;right:10px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#cfe0ff;font-size:11px;padding:4px 10px;border-radius:7px;cursor:pointer}
.codebox .copybtn:hover{background:rgba(255,255,255,.2)}
.codewrap{display:none}.codewrap.on{display:block}
@media(max-width:860px){.doclay{grid-template-columns:1fr}.docside{position:static}}

/* 控制台侧栏 */
.tramlay{display:grid;grid-template-columns:180px 1fr;gap:20px;align-items:start}
.tramside{position:sticky;top:76px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px}
.tramside button{display:block;width:100%;text-align:left;background:none;border:0;color:var(--mut);font-size:13.5px;font-weight:600;padding:9px 12px;border-radius:9px;cursor:pointer;font-family:inherit}
.tramside button:hover{background:var(--soft2)}
.tramside button.on{background:var(--brand);color:#fff}
.trampane{display:none}.trampane.on{display:block}
@media(max-width:860px){.tramlay{grid-template-columns:1fr}.tramside{position:static;display:flex;overflow-x:auto;gap:4px}.tramside button{white-space:nowrap}}

/* Zalo 悬浮 */
.zalo-float{position:fixed;right:18px;bottom:18px;z-index:60;display:flex;align-items:center;gap:9px;background:#0068ff;color:#fff;text-decoration:none;font-weight:700;font-size:14px;padding:12px 18px;border-radius:999px;box-shadow:0 8px 24px rgba(0,104,255,.35)}
.zalo-float:hover{background:#0052cc}
.zalo-float .zi{width:22px;height:22px;border-radius:50%;background:#fff;color:#0068ff;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:800}

/* 页脚 4 列 */
.footgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;text-align:left;margin-bottom:22px}
.footgrid h5{margin:0 0 9px;font-size:13px;color:var(--ink)}
.footgrid a{display:block;color:var(--mut);text-decoration:none;font-size:13px;margin:5px 0}
.footgrid a:hover{color:var(--brand)}
.footlegal{border-top:1px solid var(--line);padding-top:14px;font-size:12px;color:var(--mut)}
@media(max-width:760px){.footgrid{grid-template-columns:1fr 1fr}}

/* 案例 / 博客卡 */
.casegrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.casecard{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;text-decoration:none;color:inherit;display:block}
.casecard:hover{box-shadow:0 8px 22px rgba(16,32,80,.09)}
.casecard .ind{font-size:11.5px;font-weight:700;color:var(--brand2);text-transform:uppercase;letter-spacing:.5px}
.casecard h4{margin:6px 0 6px;font-size:15px;color:var(--ink)}
.casecard p{margin:0;font-size:13px;color:var(--mut)}
.casecard .num{font-size:22px;font-weight:800;color:var(--brand);margin-top:10px}
.casecard .num span{font-size:12px;font-weight:600;color:var(--mut)}
@media(max-width:760px){.casegrid{grid-template-columns:1fr}}

/* 时长阶梯表 */
.ladder{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;font-size:13.5px}
.ladder th,.ladder td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:right}
.ladder th{background:var(--soft2);color:var(--brand);font-size:12.5px}
.ladder td:first-child,.ladder th:first-child{text-align:left;font-weight:600}
.ladder .hot{background:#f1f8fb;font-weight:700;color:var(--brand2)}

/* 面包屑 */
.crumb{font-size:12.5px;color:var(--mut);margin-bottom:14px}
.crumb a{color:var(--brand);text-decoration:none}

/* 同意勾选（个人数据保护法 91/2025 要求：不得默认勾选） */
.consent{display:flex;gap:8px;align-items:flex-start;font-size:13px;color:var(--mut);margin:12px 0 4px;line-height:1.6}
.consent input[type=checkbox]{margin-top:3px;flex:0 0 auto;width:16px;height:16px;accent-color:var(--brand)}
.consent a{color:var(--brand);text-decoration:underline}

.btn.sm{padding:7px 12px;font-size:13px;border-radius:9px}

/* 品牌标语（hero + 页脚） */
.slogan{font-size:15px;font-weight:800;letter-spacing:.6px;color:var(--brand);margin:0 0 14px;text-transform:none}
.fslogan{font-size:13px;font-weight:700;color:var(--brand);margin:0 0 6px}
/* 留言按钮（Zalo 未开放时的替代样式：用品牌蓝而非 Zalo 蓝） */
.zalo-float.msg-mode{background:var(--brand);box-shadow:0 8px 24px rgba(31,58,138,.32)}
.zalo-float.msg-mode:hover{background:#162d6e}
.zalo-float.msg-mode .zi{color:var(--brand)}
/* AI 应用库 */
.aifilter{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0 6px}
.aifilter button{border:1px solid var(--line);background:#fff;color:var(--mut);font-size:13px;font-weight:600;padding:7px 14px;border-radius:999px;cursor:pointer;font-family:inherit}
.aifilter button.on{background:var(--brand);color:#fff;border-color:var(--brand)}
.pcard{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.pcard h4{margin:8px 0 6px;font-size:15px}
.pcard .kind{font-size:11.5px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;color:var(--brand2)}
.pcard .prompt{background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:11px 13px;font-size:13px;line-height:1.6;color:var(--ink);white-space:pre-wrap;margin:10px 0 8px;position:relative}
.pcard .copy{background:var(--brand);color:#fff;border:0;border-radius:8px;padding:6px 12px;font-size:12.5px;font-weight:700;cursor:pointer;font-family:inherit}
.pcard .copy.done{background:var(--ok)}
.pcard .use{font-size:12.5px;color:var(--mut)}
.coursebox{background:linear-gradient(135deg,#1f3a8a,#0e7490);color:#fff;border-radius:16px;padding:26px 28px;margin:26px 0}
.coursebox h3{margin:0 0 8px;font-size:20px}
.coursebox p{margin:0 0 14px;font-size:14px;color:rgba(255,255,255,.88)}
.coursebox .wait{max-width:520px}
.coursebox .wait label{color:#fff}
.coursebox .wait input{background:rgba(255,255,255,.95)}
.coursebox .wait button{background:#fff;color:var(--brand)}
.coursebox .consent{color:rgba(255,255,255,.85)}
.coursebox .consent a{color:#fff}
.coursebox .okmsg{background:rgba(255,255,255,.16);color:#fff}