/* 乐行助手 - 全站样式 */
:root{
  --brand:#ff5a6e;
  --brand-2:#19d3c5;
  --brand-grad:linear-gradient(135deg,#19d3c5 0%,#ff5a6e 100%);
  --ink:#141b2b;
  --ink-2:#4a5468;
  --ink-3:#8994a6;
  --line:#e9edf3;
  --bg:#f6f8fb;
  --card:#ffffff;
  --radius:18px;
  --shadow:0 10px 30px rgba(20,27,43,.08);
  --shadow-lg:0 20px 50px rgba(20,27,43,.14);
  --wrap:1160px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.section{padding:82px 0}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin-bottom:14px}
.section-title{font-size:clamp(26px,3.4vw,38px);font-weight:800;letter-spacing:-.02em;line-height:1.25}
.section-sub{color:var(--ink-2);font-size:17px;margin-top:14px;max-width:640px}
.center{text-align:center}
.center .section-sub{margin-left:auto;margin-right:auto}

/* 按钮 */
.btn{display:inline-flex;align-items:center;gap:9px;padding:14px 26px;border-radius:999px;font-weight:700;font-size:16px;border:0;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}
.btn svg{width:20px;height:20px}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 10px 24px rgba(255,90,110,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,90,110,.42)}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-lg{padding:16px 34px;font-size:17px}

/* 顶部导航 */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:20px;letter-spacing:-.01em}
.brand img{width:38px;height:38px;border-radius:10px}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{color:var(--ink-2);font-weight:600;font-size:15px;transition:color .2s}
.nav-links a:hover{color:var(--brand)}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:6px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px;transition:.3s}

/* Hero */
.hero{position:relative;overflow:hidden;padding:76px 0 90px}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(60% 60% at 82% 8%,rgba(25,211,197,.18),transparent 60%),
  radial-gradient(50% 50% at 10% 90%,rgba(255,90,110,.16),transparent 60%);
  z-index:-1}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(34px,5vw,56px);font-weight:900;line-height:1.1;letter-spacing:-.03em}
.hero h1 .grad{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:19px;color:var(--ink-2);margin:22px 0 30px;max-width:540px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-note{margin-top:18px;color:var(--ink-3);font-size:14px;display:flex;align-items:center;gap:8px}
.hero-note svg{width:16px;height:16px;color:var(--brand-2)}
.hero-badges{display:flex;gap:30px;margin-top:34px}
.hero-badges .num{font-size:28px;font-weight:800}
.hero-badges .lbl{color:var(--ink-3);font-size:14px}

/* 下载按钮旁的客服微信 */
.wx-inline{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px}
.wx-inline .lbl{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--ink-2)}
.wx-inline .lbl svg{width:18px;height:18px;color:var(--brand-2)}
.wx-pill{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 7px 6px 15px;font-size:15px;font-weight:800;color:var(--ink);box-shadow:0 4px 14px rgba(20,27,43,.06)}
.wx-pill button{background:var(--brand-grad);color:#fff;border:0;border-radius:999px;padding:5px 13px;font-size:12px;font-weight:700;cursor:pointer;transition:opacity .2s}
.wx-pill button:hover{opacity:.86}

/* 手机样机 */
.phone{position:relative;margin:0 auto;width:290px;height:590px;background:#0d1220;border-radius:44px;padding:12px;box-shadow:var(--shadow-lg);border:2px solid #222b3f}
.phone::after{content:"";position:absolute;top:20px;left:50%;transform:translateX(-50%);width:120px;height:26px;background:#0d1220;border-radius:0 0 16px 16px;z-index:2}
.phone .screen{width:100%;height:100%;border-radius:34px;overflow:hidden;background:#fff}
.phone .screen img{width:100%;height:100%;object-fit:cover;object-position:top}
.phone-float{position:absolute;background:#fff;border-radius:14px;box-shadow:var(--shadow);padding:12px 16px;display:flex;align-items:center;gap:10px;font-weight:700;font-size:14px}
.phone-float svg{width:22px;height:22px}
.pf-1{top:60px;left:-46px;animation:float 4s ease-in-out infinite}
.pf-2{bottom:80px;right:-40px;animation:float 4s ease-in-out infinite .8s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* 通用卡片网格 */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:transform .25s ease,box-shadow .25s ease}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card .ico{width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:var(--brand-grad);color:#fff;margin-bottom:18px}
.card .ico svg{width:28px;height:28px}
.card h3{font-size:19px;font-weight:800;margin-bottom:8px}
.card p{color:var(--ink-2);font-size:15px}

/* 截图展示 */
.shots{background:#0d1220;color:#fff}
.shots .section-sub{color:#9aa6bd}
.shots .eyebrow{color:var(--brand-2)}
.shots-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:40px;align-items:center;margin-top:20px}
.shot-frame{background:#141b2b;border:1px solid #263049;border-radius:26px;padding:14px;box-shadow:var(--shadow-lg);max-width:300px;margin:0 auto}
.shot-frame img{border-radius:16px}
.shots-text h3{font-size:26px;font-weight:800;margin-bottom:16px}
.shots-text .feature-row{display:flex;gap:14px;margin-bottom:20px}
.shots-text .feature-row .dot{flex:0 0 auto;width:40px;height:40px;border-radius:11px;background:rgba(25,211,197,.15);color:var(--brand-2);display:flex;align-items:center;justify-content:center}
.shots-text .feature-row .dot svg{width:22px;height:22px}
.shots-text .feature-row h4{font-size:17px;font-weight:700}
.shots-text .feature-row p{color:#9aa6bd;font-size:15px}

/* 步骤 */
.steps{counter-reset:step}
.step{position:relative;padding-left:70px}
.step::before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:48px;height:48px;border-radius:14px;background:var(--brand-grad);color:#fff;font-weight:800;font-size:20px;display:flex;align-items:center;justify-content:center}
.step h3{font-size:19px;font-weight:800;margin-bottom:6px}
.step p{color:var(--ink-2);font-size:15px}

/* 客服/微信 */
.contact-band{background:var(--brand-grad);border-radius:26px;color:#fff;padding:50px;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.contact-band h2{font-size:30px;font-weight:800}
.contact-band p{opacity:.94;margin-top:8px;max-width:520px}
.wx-cards{display:flex;gap:16px;flex-wrap:wrap}
.wx-card{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);border-radius:16px;padding:18px 22px;backdrop-filter:blur(6px)}
.wx-card .k{font-size:13px;opacity:.9}
.wx-card .v{font-size:20px;font-weight:800;letter-spacing:.02em;display:flex;align-items:center;gap:10px;margin-top:4px}
.wx-card button{background:#fff;color:var(--brand);border:0;border-radius:8px;padding:5px 12px;font-size:12px;font-weight:700;cursor:pointer}

/* FAQ */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:0;padding:20px 24px;font-size:17px;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;align-items:center;color:var(--ink)}
.faq-q .plus{flex:0 0 auto;transition:transform .3s;color:var(--brand)}
.faq-item.open .faq-q .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;color:var(--ink-2);padding:0 24px}
.faq-item.open .faq-a{max-height:300px;padding-bottom:20px}

/* 文章 */
.article-head{background:var(--brand-grad);color:#fff;padding:64px 0 54px}
.article-head .meta{opacity:.92;font-size:14px;margin-bottom:12px}
.article-head h1{font-size:clamp(28px,4vw,42px);font-weight:900;line-height:1.2;max-width:820px}
.article{max-width:800px;margin:0 auto;padding:56px 20px}
.article p{color:var(--ink-2);font-size:17px;margin-bottom:22px}
.article h2{font-size:26px;font-weight:800;margin:38px 0 16px}
.article h3{font-size:20px;font-weight:800;margin:28px 0 12px}
.article img{border-radius:16px;box-shadow:var(--shadow);margin:26px auto}
.article figure{margin:26px 0}
.article figcaption{text-align:center;color:var(--ink-3);font-size:14px;margin-top:10px}
.article ul.dot{margin:0 0 22px 4px}
.article ul.dot li{position:relative;padding-left:22px;color:var(--ink-2);margin-bottom:10px}
.article ul.dot li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;background:var(--brand)}

/* 资讯列表 */
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .25s,box-shadow .25s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.news-card .thumb{aspect-ratio:16/10;background:var(--brand-grad);overflow:hidden}
.news-card .thumb img{width:100%;height:100%;object-fit:cover}
.news-card .body{padding:24px;flex:1;display:flex;flex-direction:column}
.news-card .tag{font-size:12px;font-weight:700;color:var(--brand);text-transform:uppercase;letter-spacing:.08em}
.news-card h3{font-size:19px;font-weight:800;margin:8px 0 10px;line-height:1.4}
.news-card p{color:var(--ink-2);font-size:15px;flex:1}
.news-card .more{margin-top:16px;color:var(--brand);font-weight:700;font-size:15px}

/* 页脚 */
.footer{background:#0d1220;color:#c3cbdb;padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer .brand{color:#fff;margin-bottom:16px}
.footer p{color:#8994a6;font-size:15px;max-width:320px}
.footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer ul li{margin-bottom:10px}
.footer ul li a{color:#8994a6;font-size:15px;transition:color .2s}
.footer ul li a:hover{color:var(--brand-2)}
.footer .wx{color:#fff;font-weight:700}
.footer-bottom{border-top:1px solid #1e2740;margin-top:40px;padding-top:24px;text-align:center;color:#67718a;font-size:14px}
.footer-bottom a{color:#8994a6}

/* 面包屑 */
.crumb{color:var(--ink-3);font-size:14px;padding:22px 0}
.crumb a:hover{color:var(--brand)}

/* toast */
.toast{position:fixed;left:50%;bottom:40px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:12px 22px;border-radius:999px;font-size:14px;font-weight:600;opacity:0;pointer-events:none;transition:.3s;z-index:100}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* 响应式 */
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero .phone{margin-top:10px}
  .shots-grid{grid-template-columns:1fr;gap:30px}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-links,.nav-cta .btn-ghost{display:none}
  .nav-toggle{display:block}
  .nav.open .nav-links{display:flex;position:absolute;top:70px;left:0;right:0;flex-direction:column;background:#fff;padding:18px 20px;gap:16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .contact-band{padding:34px}
}
@media(max-width:560px){
  .section{padding:56px 0}
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-badges{gap:20px}
  .wx-inline{gap:8px}
  .wx-inline .lbl{width:100%}
  .wx-pill{font-size:14px;padding:5px 6px 5px 13px}
}