/*
 * ============================================================================
 *  对外展示页
 * ============================================================================
 *
 * ⚠ 来自一份 Next.js 源码，移植成纯静态页（23bb）。
 *
 *   原项目是 React + Cloudflare Workers + Vite —— 而这套系统是
 *   PHP + 原生 JS、**无构建步骤**。混两套技术栈等于长期维护两份，
 *   所以只取它的 HTML 结构和这份样式。
 *
 * ⚠ 删掉了原文件顶部的 `@import "tailwindcss"` ——
 *   这个页面一个 tailwind 类都没用，留着只会让浏览器
 *   去请求一个不存在的东西（而那是一次真实的 404）。
 *
 * ⚠ 这份是压缩过的（每行很长），改的时候用编辑器的搜索，
 *   别指望靠行号定位。
 */


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.security-section{background:radial-gradient(circle at 72% 48%,rgba(28,83,183,.18),transparent 34%),linear-gradient(145deg,#07111f,#09172b);padding:98px 0;color:#fff}.security-layout{grid-template-columns:.82fr 1.18fr}.security-points{display:grid;grid-template-columns:1fr 1fr;gap:20px 14px;margin-top:27px}.security-points>div{display:flex;gap:10px}.security-points i{width:34px;height:34px;display:grid;place-items:center;border-radius:7px;color:#5c9bff;background:rgba(40,104,218,.13);border:1px solid rgba(71,127,224,.2);font-style:normal}.security-points span{display:flex;flex-direction:column}.security-points b{font-size:12px}.security-points small{color:#71829c;font-size:8px;line-height:1.5;margin-top:4px}.topology{position:relative;min-height:365px;display:flex;flex-direction:column;align-items:center;gap:30px;padding-top:10px;background:radial-gradient(circle,rgba(40,100,210,.12),transparent 65%)}.topology:before{content:"";position:absolute;left:50%;top:48px;bottom:55px;border-left:1px dashed rgba(76,141,250,.5)}.top-node,.top-row span,.server-row span,.bottom-row span{position:relative;z-index:1;border:1px solid rgba(72,132,226,.37);background:#0d2342;border-radius:7px;box-shadow:0 10px 30px rgba(0,0,0,.12)}.top-node{padding:10px 42px;display:flex;gap:8px;align-items:center;color:#a9c6f2;font-size:11px}.top-row,.server-row,.bottom-row{display:flex;gap:14px;position:relative;z-index:1}.top-row span{padding:9px 26px;display:flex;gap:7px;align-items:center;font-size:9px;color:#9eb8df}.server-row span{width:125px;height:95px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;font-size:9px;color:#a9c2e8;background:linear-gradient(145deg,#0e2d58,#0b1c35);box-shadow:inset 0 0 25px rgba(45,112,230,.1)}.server-row svg{color:#5b9cff}.bottom-row span{padding:10px 20px;font-size:8px;color:#8da6ca}.top-row:before,.server-row:before,.bottom-row:before{content:"";position:absolute;left:10%;right:10%;top:-16px;border-top:1px dashed rgba(76,141,250,.38)}
.cta-section{background:linear-gradient(110deg,#0758ee,#3355e7 54%,#7442df);color:white;position:relative;overflow:hidden}.cta-section:before{content:"";position:absolute;inset:0;background:linear-gradient(45deg,transparent 45%,rgba(255,255,255,.05) 45% 50%,transparent 50%);background-size:120px 120px}.cta-inner{min-height:180px;position:relative;display:flex;align-items:center;justify-content:space-between}.cta-inner>div>span{color:#b9d6ff}.cta-inner h2{font-size:30px;margin:8px 0}.cta-inner p{font-size:12px;color:#c0d2f4;margin:0}.cta-inner>div:last-child{display:flex;gap:12px}.btn.white{background:#fff;color:#2861de;box-shadow:0 15px 35px rgba(0,0,0,.16)}.btn.glass{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.32);box-shadow:none}footer{background:#050d1a;color:#fff;padding:58px 0 24px}.footer-grid{display:grid;grid-template-columns:1.8fr repeat(4,1fr);gap:40px}.footer-brand p{color:#677893;font-size:11px;line-height:1.7;width:220px;margin:18px 0}.socials{display:flex;gap:8px}.socials span{width:27px;height:27px;border:1px solid #26374f;border-radius:6px;display:grid;place-items:center;color:#7185a2;font-size:10px}.footer-grid>div:not(:first-child){display:flex;flex-direction:column;gap:11px}.footer-grid>div>b{font-size:12px;margin-bottom:5px}.footer-grid>div>a{font-size:10px;color:#667893}.footer-grid>div>a:hover{color:#fff}.footer-bottom{border-top:1px solid #182439;margin-top:42px;padding-top:22px;display:flex;justify-content:space-between;color:#53637b;font-size:9px}.footer-bottom a{margin-left:22px}.floating-service{position:fixed;right:24px;bottom:24px;z-index:20;height:48px;border-radius:24px;background:linear-gradient(135deg,#1874ff,#534ef3);color:white;box-shadow:0 12px 34px rgba(26,93,224,.42);display:flex;align-items:center;gap:8px;padding:0 18px;font-size:12px;font-weight:650}
@media(max-width:1050px){.wrap{width:min(920px,calc(100% - 36px))}.hero{grid-template-columns:1fr;gap:28px;text-align:center;padding-top:70px}.hero-copy>p{margin:auto}.hero-actions,.hero-note{justify-content:center}.hero-visual{width:min(760px,100%);margin:20px auto 0}.trust{margin-top:30px}.split{grid-template-columns:1fr;gap:50px}.section-copy{text-align:center}.section-copy>p{max-width:650px;margin:auto}.section-copy ul{width:max-content;margin:26px auto 0;text-align:left}.channels-layout,.ai-layout,.security-layout{grid-template-columns:1fr}.channel-map{width:min(750px,100%);margin:auto}.ai-points{grid-template-columns:repeat(3,1fr)}.ai-points>div{flex-direction:column;text-align:center}.security-points{width:min(650px,100%);margin:27px auto 0}.topology{width:min(700px,100%);margin:auto}.chart-grid{grid-template-columns:1.3fr 1fr}.donut-box{grid-column:1/3}.donut-box ul{left:180px}.footer-grid{grid-template-columns:1.6fr repeat(2,1fr)}.footer-grid>div:nth-last-child(-n+2){margin-top:10px}.nav-links{gap:20px}}
@media(max-width:740px){.wrap{width:calc(100% - 30px)}.nav{height:66px}.nav-links,.login,.brand small{display:none}.brand{font-size:18px}.hero{min-height:auto;padding:65px 0 40px}.hero h1{font-size:37px;letter-spacing:-2px}.hero-copy>p{font-size:14px}.hero-note{font-size:10px;white-space:normal;flex-wrap:wrap}.product-window{height:390px;transform:none}.workspace{grid-template-columns:36px 125px 1fr;height:350px}.customer-card{display:none}.chat-panel{border-right:0}.float-chip{display:none}.trust{padding:17px;display:block}.logos{display:grid;grid-template-columns:1fr 1fr;font-size:11px;gap:16px}.uptime{border-left:0;border-top:1px solid rgba(255,255,255,.1);padding:14px 0 0;margin:16px 0 0;align-items:center}.features-section,.channels-section,.ai-section,.security-section{padding:70px 0}.section-head h2,.section-copy h2{font-size:28px}.feature-grid{grid-template-columns:1fr 1fr}.feature-card{padding:21px}.feature-card p{min-height:66px}.channels-layout{gap:40px}.channel-map{height:auto;display:grid;grid-template-columns:1fr 1fr;gap:15px}.channel-list{position:relative;width:auto;grid-template-columns:1fr 1fr;grid-column:1/3}.channel-lines,.unified{display:none}.inbox-mini{position:relative;top:auto;right:auto;width:auto;height:auto;grid-column:1/3}.ai-points{grid-template-columns:1fr}.ai-points>div{flex-direction:row;text-align:left}.ai-console-body{grid-template-columns:1fr}.ai-chat{min-height:290px;border-right:0;border-bottom:1px solid #e7ebf2}.metric-grid{grid-template-columns:1fr 1fr}.chart-grid{grid-template-columns:1fr}.donut-box{grid-column:auto}.chart-box{min-height:210px}.analytics-section{padding-bottom:70px}.security-points{grid-template-columns:1fr}.server-row{gap:7px}.server-row span{width:96px}.bottom-row{gap:6px}.bottom-row span{padding:9px 10px}.cta-inner{padding:40px 0;display:block;text-align:center}.cta-inner h2{font-size:25px}.cta-inner>div:last-child{justify-content:center;margin-top:25px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/3}.footer-bottom{display:block;line-height:2}.footer-bottom span{display:block}.footer-bottom a{margin:0 20px 0 0}.floating-service span{display:none}.floating-service{width:48px;padding:0;justify-content:center}}
@media(max-width:480px){.btn{padding:0 18px}.hero h1{font-size:32px}.eyebrow{font-size:11px}.hero-actions{gap:9px}.workspace{grid-template-columns:34px 102px 1fr}.product-window{height:365px}.conversation{grid-template-columns:24px 1fr}.conversation time{display:none}.avatar{width:22px;height:22px}.messages{padding:10px 8px}.message{max-width:90%;font-size:8px}.ai-suggestion p{font-size:8px}.feature-grid{grid-template-columns:1fr}.feature-card p{min-height:0}.channel-list{grid-template-columns:1fr}.metric-grid{grid-template-columns:1fr}.ai-console-head{font-size:8px}.top-row span{padding:8px 14px}.server-row span{width:30vw}.cta-inner>div:last-child{flex-direction:column}.footer-grid{gap:30px}.donut-box ul{left:145px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn,.feature-card{transition:none}}
.legal-page{min-height:100vh;background:#f6f8fc;padding-bottom:80px}.legal-nav{height:70px;background:#07111f;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 900px)/2));font-size:13px}.legal-nav a{color:#8fb9ff}.legal-page article{width:min(800px,calc(100% - 32px));margin:60px auto;background:#fff;border:1px solid #e3e9f2;border-radius:16px;padding:55px 65px;box-shadow:0 22px 60px rgba(34,57,91,.08)}.legal-page article>span{font-size:11px;letter-spacing:.16em;color:#3879e9;font-weight:700}.legal-page h1{font-size:38px;margin:12px 0 5px}.legal-date{color:#93a0b2!important;font-size:12px!important;border-bottom:1px solid #e8edf4;padding-bottom:28px}.legal-page h2{font-size:18px;margin:30px 0 10px}.legal-page article p{font-size:14px;color:#627189;line-height:1.9;margin:0}@media(max-width:600px){.legal-page article{padding:36px 25px;margin-top:30px}.legal-page h1{font-size:30px}}

/* ============================================================================
 *  联系区和留言表单
 * ============================================================================
 *
 * ⚠ 这一段是后加的（23be）。在此之前这些样式**全写成内联的**，
 *   而内联样式带不了 media query —— 于是窄屏上：
 *
 *     `.cta-inner` 是 space-between 的 flex → 表单被挤成一条
 *     表单 min-width:360px → 小屏上撑出横向滚动条
 *     联系方式那行不换行 → 超出屏幕
 *
 *   ⚠ 而这三样在宽屏上都看不出来，所以我上一轮没发现。
 */

.cta-contact{
  display:flex;flex-wrap:wrap;gap:14px 22px;margin-top:20px;
  font-size:13.5px;color:rgba(255,255,255,.82)
}
.cta-contact span{display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.cta-contact a{color:#fff;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.35)}
.cta-contact a:hover{border-bottom-color:#fff}

/* ⚠ min() 兜住窄屏：360px 是期望宽度，100% 是**上限** */
.lead-box{width:min(380px,100%);flex:0 0 auto}

.lead-flash{
  margin:0 0 12px;padding:10px 14px;border-radius:9px;font-size:13px;
  background:rgba(255,255,255,.16);color:#fff
}
.lead-flash.err{background:rgba(255,120,120,.24)}

.lead-form{display:grid;gap:10px}

.lead-form input,.lead-form textarea{
  width:100%;box-sizing:border-box;
  padding:0 14px;border-radius:9px;
  border:1px solid rgba(255,255,255,.3);
  background:rgba(255,255,255,.1);color:#fff;
  font:inherit;
  /* ⚠ 16px 不能再小 —— iOS Safari focus 小于 16px 的输入框时
     会自动放大整个页面，而用户要手动缩回去 */
  font-size:16px
}
.lead-form input{height:46px}
.lead-form textarea{padding:13px 14px;resize:none;line-height:1.6}

.lead-form input::placeholder,.lead-form textarea::placeholder{color:rgba(255,255,255,.55)}

.lead-form input:focus,.lead-form textarea:focus{
  outline:none;border-color:rgba(255,255,255,.7);background:rgba(255,255,255,.16)
}

.lead-form button{
  height:46px;border:0;border-radius:9px;cursor:pointer;
  background:#fff;color:#0d1b30;font:inherit;font-weight:600;font-size:15px
}
.lead-form button:hover{background:#eef3ff}

/* ⚠ 蜜罐：真人看不见，脚本会填 */
.lead-hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}

@media(max-width:860px){
  /* ⚠ 关键的一条：横排改竖排，否则表单被挤扁 */
  .cta-inner{flex-direction:column;align-items:stretch;gap:26px}
  .lead-box{width:100%}
}

@media(max-width:480px){
  .cta-contact{gap:12px 16px;font-size:13px}
  /* ⚠ 超窄屏允许换行 —— 一个长邮箱地址撑破布局比断开难看得多 */
  .cta-contact span{white-space:normal}
}

/* ============================================================================
 *  页脚（23be 修）
 * ============================================================================
 *
 * ⚠ 原稿的 `.footer-bottom` 有两处不能直接用：
 *
 *     font-size:9px    ⚠ 小到读不了 —— 原稿里它是「版权那一行」，
 *                        上面还有一大块页脚导航撑着。我们只有这一行，
 *                        9px 看起来像渲染坏了
 *     border-top       同上：上面没东西了，那条线是悬空的
 *
 * ⚠ 原来是靠内联 style 覆盖的，而内联样式**带不了 media query** ——
 *   这一段搬进来顺便修掉字号。
 */
footer .footer-bottom{
  border-top:0;margin-top:0;padding:26px 0;
  font-size:13px;color:#6b7b95;
  align-items:center;gap:14px
}
footer .footer-bottom a{
  color:#8b9ab2;text-decoration:none;margin-left:18px
}
footer .footer-bottom a:hover{color:#c8d3e4}

@media(max-width:600px){
  /* ⚠ 窄屏竖排居中 —— 横排的话「© 2026 XXX」和两个链接会挤在一起 */
  footer .footer-bottom{display:flex;flex-direction:column;text-align:center;gap:10px}
  footer .footer-bottom a{margin:0 9px}
}