@charset "utf-8";
/* bikaapp.com.cn — 共享样式表 */

*,*::before,*::after{box-sizing:border-box}
html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,
address,big,cite,code,del,dfn,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,
b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,
tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,menu,
nav,output,ruby,section,summary,time,mark,audio,video{
  margin:0;padding:0;border:0;font-size:100%;font:inherit;vertical-align:baseline}
article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{display:block}
ol,ul{list-style:none}
table{border-collapse:collapse;border-spacing:0}
button,input,select,textarea{font:inherit;color:inherit}

:root{
  --blue:#2B8FE6;      /* 主色 晴空蓝 */
  --blue-d:#1768BC;
  --navy:#10304F;      /* 深墨蓝 */
  --pink:#FF6F9C;      /* 辅色 樱花粉 */
  --pink-d:#EC3A6E;
  --mint:#2FD0C0;      /* 点缀 薄荷青 */
  --bg:#F3F8FE;
  --line:#E2EAF4;
  --ink:#16324E;
  --ink2:#5C7691;
  --wh:#FFFFFF;
  --shadow:0 10px 30px rgba(23,74,124,.08);
  --radius:16px;
}

body{
  font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB","Source Han Sans SC",
    "Noto Sans CJK SC","WenQuanYi Micro Hei",sans-serif;
  font-size:16px;line-height:1.78;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--pink-d)}
img{max-width:100%;height:auto;display:block;border:0}
strong{font-weight:700;color:var(--navy)}
em{font-style:normal}

.wrap{width:100%;max-width:1160px;margin:0 auto;padding-left:22px;padding-right:22px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ── 头部 ───────────────────────────── */
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);backdrop-filter:saturate(160%) blur(6px)}
.header-in{display:flex;align-items:center;justify-content:space-between;gap:14px;
  min-height:70px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand img{width:44px;height:44px;border-radius:11px;box-shadow:0 4px 12px rgba(43,143,230,.22)}
.brand-name{font-size:21px;font-weight:700;color:var(--navy);letter-spacing:.5px;
  display:flex;align-items:baseline;gap:9px}
.brand-name .sub{font-size:12px;font-weight:400;color:var(--ink2);letter-spacing:0}
.nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav a{display:inline-block;padding:9px 13px;font-size:15px;color:var(--ink2);border-radius:10px}
.nav a:hover{color:var(--blue);background:#EAF3FD}
.nav a.on{color:var(--blue);font-weight:700;background:#EAF3FD}
.nav .header-cta{padding:10px 20px;margin-left:6px;color:#fff;font-weight:700;
  background:linear-gradient(135deg,#FFA3BE,#FF5C8A 56%,#EC3A6E);border-radius:999px;
  box-shadow:0 6px 16px rgba(236,58,110,.28)}
.nav .header-cta:hover{color:#fff;background:linear-gradient(135deg,#FFB4CB,#FF6E97 56%,#E42B62)}
.nav .header-cta::after{display:none}

/* ── 按钮 ───────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 30px;border-radius:999px;font-size:16px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,#FFA3BE,#FF5C8A 56%,#EC3A6E);
  box-shadow:0 10px 24px rgba(236,58,110,.26);transition:transform .18s ease,box-shadow .18s ease}
.btn:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(236,58,110,.32)}
.btn.ghost{background:rgba(255,255,255,.9);color:var(--blue);border:1px solid #CFE3F8;
  box-shadow:0 6px 16px rgba(23,74,124,.08)}
.btn.ghost:hover{color:var(--blue-d)}
.btn.sm{padding:11px 22px;font-size:15px}
.btn i{font-size:15px}

/* ── Hero ───────────────────────────── */
.hero{position:relative;overflow:hidden;
  background:linear-gradient(158deg,#EAF4FF,#F8FCFF 44%,#FFF0F6)}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(520px 300px at 12% 8%,rgba(43,143,230,.16),transparent 70%),
    radial-gradient(460px 280px at 88% 22%,rgba(255,111,156,.16),transparent 70%),
    radial-gradient(420px 260px at 62% 96%,rgba(47,208,192,.14),transparent 70%),
    radial-gradient(#C9DEF4 1px,transparent 1px);
  background-size:auto,auto,auto,22px 22px;
}
.hero-in{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:34px;align-items:center;padding-top:62px;padding-bottom:74px}
.hero-grid>*{min-width:0}
.hero h1{font-size:44px;line-height:1.2;font-weight:800;color:var(--navy);letter-spacing:.5px;
  margin-bottom:16px}
.hero .lead{font-size:17px;color:var(--ink2);margin-bottom:22px;max-width:600px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:26px}
.hero-tags span{font-size:13px;padding:6px 13px;border-radius:999px;background:#fff;
  color:var(--blue-d);border:1px solid #D6E7F9}
.hero-acts{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hero-visual{display:flex;align-items:flex-end;justify-content:center;gap:16px}
.phone{width:206px;flex:none}
.phone.small{width:142px}
.phone .case{position:relative;background:#12314F;border-radius:26px;padding:9px 8px;
  box-shadow:0 22px 44px rgba(16,48,79,.26)}
.phone .case::after{content:"";position:absolute;left:50%;top:4px;transform:translateX(-50%);
  width:52px;height:5px;border-radius:3px;background:rgba(255,255,255,.32)}
.phone .screen{border-radius:19px;overflow:hidden;background:#fff;margin-top:9px;
  box-shadow:0 0 0 1px rgba(255,255,255,.5)}
.phone .screen img{width:100%;height:auto;display:block}

/* ── 通用区块 ───────────────────────── */
.sec{padding-top:62px;padding-bottom:62px}
.sec.alt{background:#fff}
.sec-head{max-width:760px;margin:0 auto 34px;text-align:center}
.sec-head h2{font-size:30px;font-weight:800;color:var(--navy);line-height:1.35}
.sec-head-p{font-size:15px;color:var(--ink2);margin-top:10px}
.sec-body{font-size:16px;color:var(--ink2);max-width:820px;margin:0 auto}

/* 统计条 */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 20px;box-shadow:var(--shadow)}
.stats .it{text-align:center;min-width:0}
.stats .it .num{font-size:31px;font-weight:800;color:var(--blue);line-height:1.2}
.stats .it .num .u{font-size:15px;margin-left:2px}
.stats .it .lbl{font-size:14px;color:var(--ink2);margin-top:6px}

/* 功能卡 */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;
  box-shadow:var(--shadow);transition:transform .2s ease}
.card:hover{transform:translateY(-4px)}
.card .ic{width:46px;height:46px;border-radius:13px;display:flex;align-items:center;
  justify-content:center;font-size:20px;color:#fff;margin-bottom:15px;
  background:linear-gradient(135deg,var(--blue),var(--mint))}
.card:nth-child(3n+2) .ic{background:linear-gradient(135deg,var(--pink),#FFA98C)}
.card:nth-child(3n+3) .ic{background:linear-gradient(135deg,#4FB0F0,#2FD0C0)}
.card h3{font-size:18px;font-weight:700;color:var(--navy);margin-bottom:9px}
.card p{font-size:15px;color:var(--ink2)}

/* 预览图栅格 */
.shots{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.shot{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:12px;box-shadow:var(--shadow)}
.shot img{width:100%;height:auto;display:block;border-radius:10px;
  box-shadow:0 0 0 1px #EAF1F8}
.shot figcaption{font-size:14px;color:var(--ink2);text-align:center;padding:11px 4px 3px}

/* 表格 */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;
  border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table.cmp{width:100%;min-width:680px;font-size:15px}
table.cmp caption{caption-side:top;text-align:left;font-size:14px;color:var(--ink2);
  padding:14px 18px 0}
table.cmp th,table.cmp td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);
  vertical-align:top}
table.cmp thead th{background:#EFF6FE;color:var(--navy);font-weight:700;font-size:14px;
  white-space:nowrap}
table.cmp tbody tr:last-child td{border-bottom:0}
table.cmp tbody tr:nth-child(even){background:#FAFCFF}
table.cmp td:first-child{font-weight:700;color:var(--navy);white-space:nowrap}

/* 评价 */
.reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.review{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow)}
.review .who{display:flex;align-items:center;gap:11px;margin-bottom:12px}
.review .av{width:40px;height:40px;border-radius:50%;flex:none;color:#fff;font-weight:700;
  font-size:15px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--blue),var(--pink))}
.review .nm{font-size:15px;font-weight:700;color:var(--navy)}
.review .meta{font-size:13px;color:var(--ink2)}
.review p{font-size:15px;color:var(--ink2)}

/* FAQ 速览 */
.faq-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.faq-list details{background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:0 18px;box-shadow:var(--shadow)}
.faq-list summary{cursor:pointer;list-style:none;font-size:16px;font-weight:700;
  color:var(--navy);padding:17px 30px 17px 0;position:relative}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";position:absolute;right:2px;top:15px;font-size:20px;
  color:var(--blue);font-weight:700}
.faq-list details[open] summary::after{content:"–"}
.faq-list details p{font-size:15px;color:var(--ink2);padding:0 0 17px}

/* 内页入口卡 */
.entries{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.entry{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 20px;box-shadow:var(--shadow);transition:transform .2s ease}
.entry:hover{transform:translateY(-4px)}
.entry .tag{display:inline-block;font-size:12px;padding:4px 11px;border-radius:999px;
  background:#EAF3FD;color:var(--blue-d);margin-bottom:12px}
.entry h3{font-size:17px;font-weight:700;color:var(--navy);margin-bottom:8px}
.entry p{font-size:14px;color:var(--ink2)}

/* CTA 条 */
.band{background:linear-gradient(120deg,#12314F,#1768BC 56%,#2B8FE6);border-radius:22px;
  padding:34px 30px;display:grid;grid-template-columns:1fr auto;gap:14px 24px;align-items:center;
  box-shadow:0 18px 40px rgba(16,48,79,.22)}
.band h2{font-size:25px;font-weight:800;color:#fff;grid-column:1;grid-row:1}
.band .btn{grid-column:2;grid-row:1;justify-self:end}
.band-txt{grid-column:1/-1;grid-row:2;font-size:15px;color:#CBE1F7}

/* 内页横幅 */
.page-hero{background:linear-gradient(158deg,#EAF4FF,#F8FCFF 46%,#FFF0F6);
  border-bottom:1px solid var(--line)}
.page-hero .in{padding-top:44px;padding-bottom:44px}
.page-hero h1{font-size:32px;font-weight:800;color:var(--navy);line-height:1.3;
  margin-bottom:12px}
.page-hero .lead{font-size:16px;color:var(--ink2);max-width:820px}
.crumb{font-size:13px;color:var(--ink2);margin-bottom:14px}
.crumb a{color:var(--blue)}

/* 正文 */
.prose{width:100%;max-width:900px;min-width:0;margin:0 auto;padding:54px 22px 64px}
.prose h2{font-size:25px;font-weight:800;color:var(--navy);margin:40px 0 14px;line-height:1.4}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:19px;font-weight:700;color:var(--navy);margin:26px 0 10px}
.prose p{font-size:16px;color:#33506C;margin-bottom:15px}
.prose ul,.prose ol{margin:0 0 17px}
.prose ul>li,.prose ol>li{font-size:16px;color:#33506C;margin-bottom:9px;
  padding-left:22px;position:relative}
.prose ul>li::before{content:"";position:absolute;left:3px;top:11px;width:7px;height:7px;
  border-radius:50%;background:var(--mint)}
.prose ul ul>li::before{background:#C6D6E6}
.prose .steps{list-style:none;counter-reset:st;margin:0 0 20px}
.prose .steps>li{counter-increment:st;padding-left:44px;position:relative;margin-bottom:16px}
.prose .steps>li::before{content:counter(st);position:absolute;left:0;top:2px;width:28px;
  height:28px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--mint));
  color:#fff;font-size:14px;font-weight:700;display:flex;align-items:center;
  justify-content:center;line-height:1}
.prose .steps>li strong{display:block;font-size:16px;margin-bottom:3px}
.prose .steps ul>li::before{content:"";background:#C6D6E6}
.prose .shot{max-width:368px;margin:22px auto 26px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:11px;box-shadow:var(--shadow)}
.prose .shot img{width:100%;height:auto;display:block;border-radius:9px;
  box-shadow:0 0 0 1px #EAF1F8}
.prose .shot figcaption{font-size:13px;color:var(--ink2);text-align:center;padding:10px 4px 2px}
.prose .note{background:#FFF4F8;border-left:4px solid var(--pink);border-radius:0 12px 12px 0;
  padding:16px 18px;font-size:15px;color:#7B3A52;margin:0 0 18px}
.prose .rel{margin-top:38px;background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:20px 22px;box-shadow:var(--shadow)}
.prose .rel b{color:var(--navy)}
.prose .rel a{font-weight:700}

/* 页脚 */
.site-footer{background:#0E2740;color:#A9C2D9;margin-top:56px;font-size:15px}
.footer-in{padding-top:44px;padding-bottom:20px}
.footer-cols{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr) minmax(0,1fr);
  gap:28px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.footer-brand img{width:40px;height:40px;border-radius:10px}
.footer-brand span{font-size:19px;font-weight:700;color:#fff}
.site-footer p{font-size:14px;line-height:1.8;color:#93AEC8}
.site-footer h3{font-size:15px;color:#fff;font-weight:700;margin-bottom:12px}
.site-footer li{margin-bottom:9px}
.site-footer a{color:#A9C2D9}
.site-footer a:hover{color:#fff}
.footer-dl{display:inline-flex;align-items:center;gap:8px;margin-top:14px;padding:11px 24px;
  border-radius:999px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,#FFA3BE,#FF5C8A 56%,#EC3A6E)}
.footer-dl:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:18px;
  padding-bottom:22px;font-size:13px;color:#8AA6C0;line-height:1.9}

/* 渐显 */
.reveal{transition:opacity .6s ease,transform .6s ease}
.js .reveal{opacity:0;transform:translateY(18px)}
.js .reveal.is-in{opacity:1;transform:none}

/* ── ≤980px ─────────────────────────── */
@media (max-width:980px){
  .hero h1{font-size:36px}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:26px;
    padding-top:44px;padding-bottom:56px}
  .hero-visual{order:2}
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .shots{grid-template-columns:repeat(3,minmax(0,1fr))}
  .entries{grid-template-columns:repeat(2,minmax(0,1fr))}
  .reviews{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-cols{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .band{grid-template-columns:minmax(0,1fr)}
  .band h2{grid-column:1;grid-row:1}
  .band .btn{grid-column:1;grid-row:2;justify-self:start}
  .band-txt{grid-column:1;grid-row:3}
}

/* ── ≤620px ─────────────────────────── */
@media (max-width:620px){
  body{font-size:15px}
  .header-in{flex-direction:column;align-items:stretch;gap:6px;padding-top:10px;
    padding-bottom:8px}
  .nav{gap:0;justify-content:space-between}
  .nav a{flex:0 0 33.3333%;text-align:center;white-space:nowrap;padding:9px 4px;
    font-size:14px}
  .nav .header-cta{display:none}
  .brand-name{font-size:19px}
  .brand-name .sub{display:none}
  .hero h1{font-size:28px}
  .hero .lead{font-size:15px}
  .hero-visual{gap:12px}
  .phone{width:44vw;max-width:196px}
  .phone.small{width:30vw;max-width:132px}
  .sec{padding-top:44px;padding-bottom:44px}
  .sec-head h2{font-size:23px}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;padding:20px 14px}
  .stats .it .num{font-size:26px}
  .cards,.reviews,.faq-list{grid-template-columns:minmax(0,1fr)}
  .shots{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .entries{grid-template-columns:minmax(0,1fr)}
  .footer-cols{grid-template-columns:minmax(0,1fr)}
  .page-hero h1{font-size:23px}
  .page-hero .in{padding-top:30px;padding-bottom:30px}
  .prose{padding:36px 22px 48px}
  .prose h2{font-size:21px;margin-top:32px}
  .prose .steps>li{padding-left:38px}
  .band{padding:26px 20px;border-radius:18px}
  .band h2{font-size:20px}
}

@media (prefers-reduced-motion:reduce){
  .reveal,.js .reveal,.js .reveal.is-in{opacity:1;transform:none;transition:none}
  .btn:hover,.card:hover,.entry:hover{transform:none}
}