/* ============ 变量与基础 ============ */
:root{
  --primary:#FF5E7E;
  --primary-deep:#F04368;
  --primary-soft:#FFF0F4;
  --grad-main:linear-gradient(135deg,#FF8FA8,#FF5E7E);
  --dark:#33263C;
  --text:#574A60;
  --muted:#8E8096;
  --border:#F3E0E8;
  --bg:#FFFCFE;
  --card:#FFFFFF;
  --shadow:0 10px 30px rgba(240,67,104,.12);
  --shadow-hover:0 16px 40px rgba(240,67,104,.20);
  --radius:18px;
  --radius-lg:24px;
  --container:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;border:none;background:none;cursor:pointer}
ul{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-soft{background:var(--primary-soft)}
.section-grad{background:var(--grad-main)}
.sec-title{font-size:34px;font-weight:800;color:var(--dark);line-height:1.35;text-align:center}
.sec-title.light{color:#fff}
.sec-sub{text-align:center;color:var(--muted);margin-top:10px;font-size:15px}
.section-soft .sec-sub{color:#A38892}

/* ============ 顶部导航 ============ */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,252,254,.94);border-bottom:1px solid var(--border);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.nav-inner{max-width:var(--container);margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;gap:28px}
.logo{display:flex;align-items:center;gap:8px;font-size:22px;font-weight:800;color:var(--dark);letter-spacing:.5px}
.logo-heart{width:22px;height:22px;border-radius:6px;background:var(--grad-main);position:relative;flex:none}
.logo-heart::after{content:"";position:absolute;left:7px;top:6px;width:8px;height:8px;background:#fff;border-radius:50% 50% 50% 0;transform:rotate(-45deg)}
.nav-links{display:flex;gap:24px;margin:0 auto}
.nav-links a{font-size:15px;color:var(--text);transition:color .2s;white-space:nowrap}
.nav-links a:hover{color:var(--primary)}
.btn-nav{flex:none;font-size:14px;font-weight:700;color:#fff;background:var(--grad-main);padding:8px 18px;border-radius:999px;box-shadow:0 4px 14px rgba(255,94,126,.32);transition:transform .2s,box-shadow .2s}
.btn-nav:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(255,94,126,.42)}

/* ============ Hero ============ */
.hero{padding:64px 0 84px;background:
  radial-gradient(600px 320px at 85% 10%,rgba(255,143,168,.18),transparent 60%),
  radial-gradient(520px 300px at 8% 90%,rgba(255,94,126,.10),transparent 60%),var(--bg)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-text h1{font-size:46px;line-height:1.25;font-weight:900;color:var(--dark);letter-spacing:1px}
.hero-text .ver{font-size:20px;font-weight:800;color:var(--primary);background:var(--primary-soft);border:1px solid #FFD5E0;padding:4px 14px;border-radius:999px;vertical-align:middle;margin-left:8px;letter-spacing:.5px}
.hero-desc{margin:20px 0 26px;font-size:17px;color:var(--text);max-width:520px}
.persona-label{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--dark);margin-bottom:14px}
.persona-label::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--grad-main)}
.persona-list{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}
.persona-item{display:flex;flex-direction:column;align-items:center;gap:6px;padding:8px 10px;border-radius:14px;border:2px solid transparent;transition:transform .2s,border-color .2s,box-shadow .2s}
.persona-item img{width:58px;height:58px;border-radius:50%;object-fit:cover;border:2px solid var(--border)}
.persona-item i{font-style:normal;font-size:12px;color:var(--muted)}
.persona-item:hover{transform:translateY(-3px)}
.persona-item.active{border-color:var(--primary);background:var(--primary-soft);box-shadow:0 6px 16px rgba(255,94,126,.16)}
.persona-item.active img{border-color:var(--primary)}
.persona-item.active i{color:var(--primary);font-weight:700}
.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:16px;font-weight:700;color:#fff;background:var(--grad-main);padding:14px 34px;border-radius:999px;box-shadow:0 10px 26px rgba(255,94,126,.36);transition:transform .2s,box-shadow .2s}
.btn-main:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(255,94,126,.46)}
.btn-line{display:inline-flex;align-items:center;font-size:15px;font-weight:700;color:var(--primary);border:2px solid var(--primary);padding:10px 26px;border-radius:999px;transition:all .2s}
.btn-line:hover{background:var(--primary);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,94,126,.28)}

/* 聊天窗口 */
.chat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden;max-width:400px;margin-left:auto}
.chat-head{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--border);background:linear-gradient(135deg,#FFF6F8,#FFF0F4)}
.chat-head img{width:42px;height:42px;border-radius:50%;object-fit:cover;border:2px solid #fff;box-shadow:0 3px 10px rgba(240,67,104,.18)}
.chat-head-info{display:flex;flex-direction:column;line-height:1.3}
.chat-head-info b{font-size:15px;color:var(--dark)}
.online{font-size:13px;color:var(--primary);display:flex;align-items:center;gap:5px}
.online i{width:7px;height:7px;border-radius:50%;background:#2ECC71;box-shadow:0 0 0 3px rgba(46,204,113,.18)}
.chat-body{background:#FBF7F9;padding:18px 14px;display:flex;flex-direction:column;gap:14px;min-height:318px}
.msg{display:flex;gap:8px;align-items:flex-end;max-width:86%}
.msg.ai{align-self:flex-start}
.msg.me{align-self:flex-end;flex-direction:row-reverse}
.msg-avatar{width:28px;height:28px;border-radius:50%;object-fit:cover;flex:none}
.bubble{padding:10px 14px;border-radius:16px;font-size:14px;line-height:1.6;color:var(--dark)}
.msg.ai .bubble{background:#fff;border:1px solid var(--border);border-bottom-left-radius:4px}
.msg.me .bubble{background:var(--grad-main);color:#fff;border-bottom-right-radius:4px}
.chat-input{display:flex;align-items:center;gap:10px;padding:12px 16px;border-top:1px solid var(--border)}
.placeholder{flex:1;font-size:14px;color:var(--muted)}
.send{font-size:13px;font-weight:700;color:#fff;background:var(--grad-main);padding:8px 20px;border-radius:999px;min-height:36px}

/* ============ 三步上手 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:48px}
.step-card{position:relative;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:38px 30px 30px;transition:transform .25s,box-shadow .25s}
.step-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.step-num{position:absolute;top:22px;right:26px;font-size:30px;font-weight:900;color:#FFD9E2}
.step-icon{width:58px;height:58px;border-radius:16px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.step-icon svg{width:28px;height:28px}
.step-card h3{font-size:20px;font-weight:800;color:var(--dark);margin-bottom:10px}
.step-card p{font-size:14.5px;color:var(--text)}

/* ============ 产品介绍 ============ */
.product{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.product-media img{border-radius:var(--radius-lg);box-shadow:var(--shadow);width:100%}
.product-text .sec-title{text-align:left;margin-bottom:18px}
.product-text>p{font-size:16px;color:var(--text);margin-bottom:26px}
.product-points{display:flex;flex-direction:column;gap:16px;margin-bottom:30px}
.product-points li{display:flex;gap:14px;align-items:flex-start}
.pt-icon{flex:none;width:26px;height:26px;border-radius:50%;background:var(--grad-main);color:#fff;font-size:14px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-top:2px}
.product-points b{display:block;font-size:16px;color:var(--dark)}
.product-points em{font-style:normal;font-size:14px;color:var(--muted)}

/* ============ 四大核心功能 ============ */
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:48px}
.feature-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:30px 24px;transition:transform .25s,box-shadow .25s}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.feat-icon{width:52px;height:52px;border-radius:14px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.feat-icon svg{width:26px;height:26px}
.feature-card h3{font-size:18px;font-weight:800;color:var(--dark);margin-bottom:12px}
.pain{font-size:14px;color:var(--muted);background:#FBF5F7;border-radius:10px;padding:9px 12px;margin-bottom:10px;line-height:1.55}
.solve{font-size:14px;color:var(--text)}

/* ============ 优势对比 ============ */
.cmp-wrap{margin-top:46px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.cmp-grid{display:flex;flex-direction:column}
.cmp-row{display:grid;grid-template-columns:16% 28% 28% 28%}
.cmp-row>span{display:flex;align-items:center;padding:15px 18px;font-size:14.5px;border-bottom:1px solid #F6EBF0}
.cmp-row:last-child>span{border-bottom:none}
.cmp-head{background:var(--primary-soft)}
.cmp-head>span{font-weight:800;color:var(--dark);border-bottom:1px solid #F6C9D6}
.cmp-dim{font-weight:700;color:var(--dark)}
.cmp-me{color:var(--primary-deep);font-weight:700}
.cmp-me b{font-weight:800}
.cmp-row>span:not(.cmp-dim):not(.cmp-me){color:var(--muted)}
.cmp-hint{display:none}

/* ============ 使用场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:46px}
.scene-card{display:flex;gap:14px;align-items:flex-start;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px;transition:transform .2s,box-shadow .2s}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.scene-check{flex:none;width:26px;height:26px;border-radius:50%;background:var(--grad-main);color:#fff;font-size:14px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-top:2px}
.scene-card p{font-size:15px;color:var(--text)}
.scene-vs{display:flex;align-items:center;justify-content:center;gap:30px;margin-top:44px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:30px}
.vs-side{flex:1;max-width:330px;text-align:center}
.vs-side b{display:block;font-size:17px;color:var(--dark);margin-bottom:6px}
.vs-side span{font-size:13.5px;color:var(--muted)}
.vs-side.vs-win b{color:var(--primary-deep)}
.vs-arrow{flex:none;width:58px;height:58px;border-radius:50%;background:var(--grad-main);color:#fff;font-weight:900;font-size:17px;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(255,94,126,.35)}

/* ============ 数据 ============ */
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:48px}
.data-card{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.32);border-radius:var(--radius);padding:34px 20px;text-align:center;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);transition:transform .25s}
.data-card:hover{transform:translateY(-5px)}
.data-card b{display:block;font-size:42px;font-weight:900;color:#fff;line-height:1.2}
.data-card span{font-size:14px;color:rgba(255,255,255,.92)}

/* ============ 人设定制 ============ */
.persona{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.persona-text .sec-title{text-align:left;margin-bottom:18px}
.persona-text>p{font-size:16px;margin-bottom:28px}
.persona-opts{display:flex;flex-direction:column;gap:16px;margin-bottom:32px}
.persona-opts li{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px 20px;transition:transform .2s,box-shadow .2s}
.persona-opts li:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.persona-opts b{display:block;font-size:15px;color:var(--dark);margin-bottom:4px}
.persona-opts span{font-size:13.5px;color:var(--muted)}
.persona-media{position:relative}
.persona-media img{border-radius:var(--radius-lg);box-shadow:var(--shadow);width:100%}
.persona-tag{position:absolute;left:50%;bottom:20px;transform:translateX(-50%);background:rgba(255,255,255,.92);border:1px solid var(--border);border-radius:999px;padding:8px 18px;font-size:13px;font-weight:700;color:var(--primary-deep);white-space:nowrap;box-shadow:0 6px 18px rgba(240,67,104,.18)}

/* ============ 用户评价 ============ */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
.review-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px 24px;transition:transform .25s,box-shadow .25s}
.review-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.rv-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.rv-avatar{width:46px;height:46px;border-radius:50%;background:var(--grad-main);color:#fff;font-size:18px;font-weight:800;display:flex;align-items:center;justify-content:center;flex:none;box-shadow:0 4px 12px rgba(255,94,126,.3)}
.rv-info b{display:block;font-size:15px;color:var(--dark)}
.stars{font-size:13px;color:#FFB84D;letter-spacing:2px}
.review-card p{font-size:14px;color:var(--text)}

/* ============ 隐私安全 ============ */
.privacy{max-width:760px;text-align:center}
.privacy-badge{width:72px;height:72px;margin:0 auto 26px;border-radius:22px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow)}
.privacy-badge svg{width:36px;height:36px}
.privacy>p{font-size:16px;margin:20px 0 32px}
.privacy-list{display:flex;justify-content:center;gap:18px;flex-wrap:wrap}
.privacy-list li{flex:1;min-width:190px;max-width:240px;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px 16px;transition:transform .2s,box-shadow .2s}
.privacy-list li:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.privacy-list b{display:block;font-size:15px;color:var(--dark);margin-bottom:4px}
.privacy-list span{font-size:13px;color:var(--muted)}

/* ============ 版本更新 ============ */
.changelog-card{max-width:860px;margin:48px auto 0;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.cl-head{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:34px 38px;background:var(--grad-main);color:#fff}
.cl-ver{display:flex;flex-direction:column;gap:7px}
.ver-tag{align-self:flex-start;background:rgba(255,255,255,.22);border:1px solid rgba(255,255,255,.4);font-size:13px;padding:5px 14px;border-radius:999px}
.ver-num{font-size:40px;font-weight:900;letter-spacing:1px;line-height:1.2}
.ver-date{font-size:14px;color:rgba(255,255,255,.92)}
.cl-head .btn-main{background:#fff;color:var(--primary-deep);box-shadow:0 10px 24px rgba(0,0,0,.16);flex:none}
.cl-head .btn-main:hover{transform:translateY(-3px)}
.cl-body{padding:32px 38px 36px}
.cl-body h3{position:relative;font-size:19px;font-weight:800;color:var(--dark);margin-bottom:22px;padding-left:14px}
.cl-body h3::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:18px;border-radius:4px;background:var(--grad-main)}
.cl-body ul{display:flex;flex-direction:column;gap:14px}
.cl-body li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text)}
.log-dot{flex:none;width:10px;height:10px;border-radius:50%;background:var(--grad-main);margin-top:8px;box-shadow:0 0 0 4px var(--primary-soft)}

/* ============ FAQ ============ */
.faq{max-width:800px}
.faq-list{display:flex;flex-direction:column;gap:14px;margin-top:44px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:box-shadow .2s,border-color .2s}
.faq-item.open{box-shadow:var(--shadow);border-color:#FFC9D6}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:19px 22px;font-size:16px;font-weight:700;color:var(--dark)}
.faq-arrow{flex:none;width:12px;height:12px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);transition:transform .25s,margin-top .25s;margin-top:-5px}
.faq-item.open .faq-arrow{transform:rotate(225deg);margin-top:5px;border-color:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 22px 20px;font-size:14.5px;color:var(--text)}

/* ============ 下载区域 ============ */
.down{text-align:center;color:#fff;padding:20px 24px}
.down-title{font-size:42px;font-weight:900;letter-spacing:1px}
.down-title .ver{font-size:18px;font-weight:800;background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.45);padding:4px 13px;border-radius:999px;vertical-align:middle;margin-left:8px}
.down-meta{font-size:14px;color:rgba(255,255,255,.9);margin:14px 0 32px}
.down-btns{display:flex;justify-content:center;gap:20px}
.btn-download{display:inline-flex;align-items:center;gap:10px;background:#fff;color:var(--primary-deep);font-size:16px;font-weight:800;padding:16px 34px;border-radius:999px;box-shadow:0 12px 30px rgba(0,0,0,.18);transition:transform .2s,box-shadow .2s}
.btn-download:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(0,0,0,.26)}
.dl-icon{width:22px;height:22px}
.dl-icon svg{width:22px;height:22px}
.down-tip{font-size:14px;color:rgba(255,255,255,.95);margin-top:26px}

/* ============ 页脚 ============ */
.footer{border-top:1px solid var(--border);background:#FFF9FB;padding:34px 0}
.footer .container{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-logo{font-size:20px;font-weight:800;color:var(--dark);display:flex;align-items:center;gap:8px}
.footer p{font-size:13px;color:var(--muted)}
.footer-link{color:var(--muted);transition:color .2s}
.footer-link:hover{color:var(--primary)}

/* ============ 返回顶部 ============ */
.back-top{position:fixed;right:26px;bottom:30px;z-index:99;width:46px;height:46px;border-radius:50%;background:var(--grad-main);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 22px rgba(255,94,126,.4);opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .25s,transform .25s,visibility .25s}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{transform:translateY(-3px)}
.back-top svg{width:22px;height:22px}

/* ============ Toast 提示 ============ */
.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%) translateY(16px);background:rgba(51,38,60,.94);color:#fff;font-size:14px;padding:11px 22px;border-radius:999px;opacity:0;visibility:hidden;transition:opacity .25s,transform .25s,visibility .25s;z-index:200;max-width:86vw;text-align:center;box-shadow:0 10px 30px rgba(0,0,0,.22)}
.toast.show{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}

/* ============ 平板适配 ≤1024px ============ */
@media (max-width:1024px){
  .section{padding:68px 0}
  .nav-links{gap:16px}
  .hero-grid{gap:40px}
  .hero-text h1{font-size:38px}
  .features{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .data-grid{grid-template-columns:repeat(2,1fr)}
  .product,.persona{gap:40px}
}

/* ============ 移动端适配 ≤768px ============ */
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:54px 0}
  .sec-title{font-size:26px}
  .nav-inner{padding:0 20px;height:58px;gap:12px}
  .logo{font-size:19px}
  .nav-links{display:none}
  .btn-nav{margin-left:auto;padding:10px 18px;font-size:13px;min-height:40px}
  .hero{padding:38px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-text h1{font-size:31px;line-height:1.3}
  .hero-text .ver{font-size:15px;padding:3px 11px}
  .hero-desc{font-size:15px}
  .persona-item img{width:52px;height:52px}
  .btn-main{width:100%;font-size:15px;padding:13px 0}
  .chat-card{max-width:100%;margin:0}
  .chat-body{min-height:270px}
  .steps{grid-template-columns:1fr;gap:18px;margin-top:36px}
  .step-card{padding:30px 24px}
  .product{grid-template-columns:1fr;gap:28px}
  .product-text .sec-title,.persona-text .sec-title{font-size:24px}
  .features{grid-template-columns:1fr;gap:18px;margin-top:36px}
  .cmp-wrap{margin-top:36px;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .cmp-hint{display:block;text-align:center;font-size:12px;color:var(--muted);margin-top:12px}
  .cmp-grid{min-width:585px}
  .cmp-row{grid-template-columns:90px 165px 165px 165px}
  .cmp-row>span{align-items:center;padding:12px 14px;font-size:13.5px;line-height:1.5}
  .cmp-head>span{font-size:13.5px}
  .scene-grid{grid-template-columns:1fr;gap:14px;margin-top:36px}
  .scene-card{padding:16px 18px}
  .scene-vs{flex-direction:column;gap:18px;padding:24px 18px;margin-top:34px}
  .data-grid{grid-template-columns:repeat(2,1fr);gap:14px;margin-top:36px}
  .data-card{padding:24px 12px}
  .data-card b{font-size:32px}
  .persona{grid-template-columns:1fr;gap:28px}
  .persona-opts li{padding:14px 16px}
  .review-grid{grid-template-columns:1fr;gap:16px;margin-top:36px}
  .privacy-list{flex-direction:column;align-items:center}
  .privacy-list li{max-width:100%;width:100%}
  .changelog-card{margin-top:36px}
  .cl-head{flex-direction:column;align-items:flex-start;gap:18px;padding:26px 22px}
  .cl-head .btn-main{width:100%}
  .cl-body{padding:24px 22px 28px}
  .ver-num{font-size:34px}
  .faq-list{margin-top:32px}
  .faq-q{font-size:15px;padding:17px 18px}
  .down-title{font-size:29px}
  .down-meta{font-size:12px;margin:12px 0 26px}
  .down-btns{flex-direction:column;gap:14px;align-items:stretch;padding:0 8px}
  .btn-download{justify-content:center;font-size:15px;padding:15px 0}
  .down-tip{font-size:13px}
  .footer .container{flex-direction:column;justify-content:center;text-align:center}
  .back-top{right:16px;bottom:22px;width:42px;height:42px}
}