/* =========================================================
   电子工作证官网 · 样式
   设计语言：深空蓝 + 靛紫渐变 + 金色点缀，玻璃拟态，留白大气
   ========================================================= */
:root{
  --navy:#0a1530;
  --navy-2:#0f1f44;
  --ink:#0d1426;
  --text:#eaf0ff;
  --muted:#9fb0d4;
  --muted-2:#6f82ad;
  --line:rgba(255,255,255,.10);
  --card:rgba(255,255,255,.045);
  --card-2:rgba(255,255,255,.07);
  --brand:#5b6cff;
  --brand-2:#9b5bff;
  --gold:#e0b15e;
  --grad:linear-gradient(120deg,#5b6cff 0%,#9b5bff 55%,#c06bff 100%);
  --gold-grad:linear-gradient(120deg,#e8c074,#e0b15e 60%,#caa14e);
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 24px 60px -20px rgba(2,8,28,.7);
  --maxw:1180px;
  --ease:cubic-bezier(.2,.7,.2,1);
  font-synthesis:none;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color:var(--text);
  background:var(--navy);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
section{position:relative}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--gold);font-weight:600;margin-bottom:14px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;
  border:1px solid transparent;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s;
  white-space:nowrap;
}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 14px 34px -12px rgba(123,91,255,.7)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 22px 44px -14px rgba(123,91,255,.85)}
.btn--ghost{background:rgba(255,255,255,.06);border-color:var(--line);color:var(--text);backdrop-filter:blur(8px)}
.btn--ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn--block{width:100%}
.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}

/* ---------- 导航 ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:background .3s,box-shadow .3s,border-color .3s}
.nav__inner{
  max-width:var(--maxw);margin:0 auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;
  border-bottom:1px solid transparent;transition:border-color .3s;
}
.nav.scrolled{background:rgba(10,21,48,.82);backdrop-filter:blur(14px);box-shadow:0 10px 30px -16px rgba(0,0,0,.6)}
.nav.scrolled .nav__inner{border-color:var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-weight:700}
.brand__mark{display:grid;place-items:center;filter:drop-shadow(0 6px 14px rgba(91,108,255,.5))}
.brand__text{font-size:18px;letter-spacing:.04em;display:flex;flex-direction:column;line-height:1.05}
.brand__text small{font-size:10px;letter-spacing:.28em;color:var(--muted-2);font-weight:600}
.nav__links{display:flex;align-items:center;gap:30px}
.nav__links a{font-size:15px;color:var(--muted);transition:color .2s;position:relative}
.nav__links a:hover{color:var(--text)}
.nav__links a:not(.nav__cta)::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--grad);transition:width .25s var(--ease)}
.nav__links a:not(.nav__cta):hover::after{width:100%}
.nav__cta{background:var(--grad);color:#fff!important;padding:9px 20px;border-radius:999px;box-shadow:0 10px 26px -12px rgba(123,91,255,.7)}
.nav__cta:hover{transform:translateY(-1px)}
.nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav__toggle span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:.3s}

/* ---------- Hero ---------- */
.hero{min-height:100vh;display:flex;align-items:center;padding:140px 24px 80px;overflow:hidden}
.hero__bg{position:absolute;inset:0;z-index:0;background:
  radial-gradient(1200px 700px at 75% -10%,rgba(123,91,255,.22),transparent 60%),
  radial-gradient(900px 600px at 10% 10%,rgba(91,108,255,.18),transparent 55%),
  linear-gradient(180deg,#0a1530 0%,#0b1736 50%,#0a142e 100%);}
.orb{position:absolute;border-radius:50%;filter:blur(60px);opacity:.55;animation:float 14s var(--ease) infinite}
.orb--1{width:420px;height:420px;background:#5b6cff;top:-80px;right:8%;animation-delay:-2s}
.orb--2{width:360px;height:360px;background:#9b5bff;bottom:-120px;left:6%;animation-delay:-6s}
.orb--3{width:300px;height:300px;background:#3ad0c8;top:40%;left:40%;opacity:.3;animation-delay:-9s}
.grid-mask{position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:54px 54px;mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 75%);opacity:.4}
@keyframes float{0%,100%{transform:translateY(0) translateX(0)}50%{transform:translateY(-30px) translateX(20px)}}

.hero__inner{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;width:100%;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.pill{display:inline-block;padding:7px 16px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.05);color:var(--muted);font-size:13px;margin-bottom:22px;backdrop-filter:blur(6px)}
.hero__title{font-size:clamp(34px,5vw,60px);line-height:1.12;font-weight:800;letter-spacing:-.01em}
.hero__sub{margin:22px 0 32px;color:var(--muted);font-size:17px;max-width:540px}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap}
.hero__trust{list-style:none;display:flex;gap:38px;margin-top:42px;flex-wrap:wrap}
.hero__trust b{display:block;font-size:30px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__trust span{font-size:13px;color:var(--muted-2)}

/* 手机样机 */
.hero__art{display:grid;place-items:center}
.phone{width:300px;height:610px;background:linear-gradient(160deg,#1a2750,#0c1430);border-radius:40px;padding:14px;box-shadow:var(--shadow),inset 0 0 0 2px rgba(255,255,255,.06);position:relative;animation:rise 1s var(--ease) both}
.phone__notch{position:absolute;top:14px;left:50%;transform:translateX(-50%);width:120px;height:22px;background:#0c1430;border-radius:0 0 14px 14px;z-index:2}
@keyframes rise{from{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}
.card-mock{margin-top:30px;height:calc(100% - 30px);border-radius:26px;background:linear-gradient(160deg,#5b6cff,#9b5bff);padding:20px 18px;color:#fff;display:flex;flex-direction:column;box-shadow:0 20px 40px -16px rgba(91,108,255,.7);position:relative;overflow:hidden}
.card-mock::after{content:"";position:absolute;right:-40px;top:-40px;width:160px;height:160px;border-radius:50%;background:rgba(255,255,255,.16)}
.card-mock__top{display:flex;justify-content:space-between;align-items:center;position:relative;z-index:1}
.card-mock__logo{font-weight:800;letter-spacing:.1em;font-size:15px}
.card-mock__badge{font-size:11px;background:rgba(255,255,255,.22);padding:3px 9px;border-radius:999px}
.card-mock__avatar{width:74px;height:74px;border-radius:50%;background:rgba(255,255,255,.25);margin:18px auto 12px;border:3px solid rgba(255,255,255,.5)}
.card-mock__name{text-align:center;font-size:18px;font-weight:700;position:relative;z-index:1}
.card-mock__org{text-align:center;font-size:12px;opacity:.9;margin-bottom:14px;position:relative;z-index:1}
.card-mock__row{display:flex;justify-content:space-between;font-size:12.5px;padding:8px 12px;background:rgba(255,255,255,.14);border-radius:10px;margin-bottom:8px;position:relative;z-index:1}
.card-mock__row span{opacity:.85}
.card-mock__qr{width:96px;height:96px;margin:6px auto 8px;border-radius:12px;background:
  repeating-conic-gradient(#0a1530 0 25%,#fff 0 50%) 0/16px 16px;position:relative;z-index:1}
.card-mock__hint{text-align:center;font-size:11px;opacity:.92;position:relative;z-index:1}

.hero__scroll{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);width:26px;height:42px;border:2px solid var(--line);border-radius:14px;z-index:1}
.hero__scroll span{position:absolute;top:8px;left:50%;transform:translateX(-50%);width:4px;height:8px;border-radius:2px;background:var(--muted);animation:scrolldot 1.6s infinite}
@keyframes scrolldot{0%{opacity:0;top:8px}40%{opacity:1}100%{opacity:0;top:22px}}

/* ---------- 通用 section ---------- */
.section{max-width:var(--maxw);margin:0 auto;padding:96px 24px}
.section--alt{position:relative}
.section--alt::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.02),transparent);pointer-events:none}
.section__head{text-align:center;max-width:680px;margin:0 auto 54px}
.section__head h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;letter-spacing:-.01em}
.section__head p{color:var(--muted);margin-top:14px;font-size:16px}

/* ---------- 功能介绍 ---------- */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feature{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:transform .3s var(--ease),border-color .3s,background .3s;position:relative;overflow:hidden;
}
.feature::before{content:"";position:absolute;inset:0;background:var(--grad);opacity:0;transition:opacity .3s;z-index:0}
.feature>*{position:relative;z-index:1}
.feature:hover{transform:translateY(-6px);border-color:transparent;background:var(--card-2)}
.feature:hover::before{opacity:.10}
.feature__icon{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:rgba(91,108,255,.14);margin-bottom:16px}
.feature__icon svg{width:26px;height:26px;fill:none;stroke:#aeb8ff;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.feature h3{font-size:18px;font-weight:700;margin-bottom:8px}
.feature p{color:var(--muted);font-size:14.5px}

/* ---------- 套餐价格 ---------- */
.pricing{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;align-items:stretch}
.price{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px;
  display:flex;flex-direction:column;position:relative;transition:transform .3s var(--ease),border-color .3s;
}
.price:hover{transform:translateY(-6px);border-color:rgba(123,91,255,.5)}
.price--rec{background:linear-gradient(180deg,rgba(91,108,255,.16),rgba(155,91,255,.06));border-color:rgba(123,91,255,.55);box-shadow:0 24px 60px -26px rgba(91,108,255,.6)}
.price--rec::after{content:"推荐";position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12px;padding:5px 16px;border-radius:999px;font-weight:600}
.price__name{font-size:17px;font-weight:700}
.price__tag{font-size:12px;color:var(--muted-2);min-height:18px;margin:4px 0 12px}
.price__price{font-size:30px;font-weight:800;letter-spacing:-.01em}
.price__price small{font-size:13px;color:var(--muted);font-weight:500}
.price__price.free{background:var(--gold-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.price__list{list-style:none;margin:18px 0 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.price__list li{font-size:13.5px;color:var(--muted);padding-left:22px;position:relative}
.price__list li::before{content:"✓";position:absolute;left:0;color:var(--brand-2);font-weight:700}
.price__list li b{color:var(--text);font-weight:600}
.price .btn{margin-top:auto}
.price--loading{grid-column:1/-1;text-align:center;color:var(--muted);padding:40px}

/* ---------- 关于我们 ---------- */
.about{display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}
.about__copy h2{font-size:clamp(26px,3vw,36px);font-weight:800;margin-bottom:18px}
.about__copy p{color:var(--muted);margin-bottom:14px}
.values{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:24px}
.value{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.value__k{display:block;font-weight:700;color:var(--gold);font-size:15px;margin-bottom:4px}
.value__v{display:block;font-size:13px;color:var(--muted)}
.about__stats{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.stat{background:linear-gradient(160deg,rgba(91,108,255,.14),rgba(155,91,255,.05));border:1px solid var(--line);border-radius:var(--radius);padding:26px;text-align:center}
.stat b{display:block;font-size:34px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:13px;color:var(--muted)}

/* ---------- 联系我们 ---------- */
.contact{display:flex;flex-direction:column;gap:30px}
.contact__cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.contact__card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-align:center;transition:transform .3s var(--ease),border-color .3s}
.contact__card:hover{transform:translateY(-5px);border-color:rgba(123,91,255,.45)}
.contact__ic{font-size:26px;margin-bottom:10px}
.contact__card h4{font-size:15px;font-weight:700;margin-bottom:6px}
.contact__card p{font-size:15px;color:var(--text)}
.contact__card span{font-size:12.5px;color:var(--muted-2)}
.contact__cta{background:linear-gradient(120deg,rgba(91,108,255,.16),rgba(155,91,255,.08));border:1px solid var(--line);border-radius:var(--radius);padding:34px;text-align:center}
.contact__cta h3{font-size:22px;font-weight:800}
.contact__cta p{color:var(--muted);margin:10px auto 20px;max-width:480px}

/* ---------- 申请试用 ---------- */
.trial{position:relative}
.trial::before{content:"";position:absolute;inset:0;background:radial-gradient(800px 400px at 80% 0%,rgba(123,91,255,.16),transparent 60%);pointer-events:none}
.trial__inner{position:relative;max-width:1040px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:start}
.trial__intro h2{font-size:clamp(26px,3vw,36px);font-weight:800;margin-bottom:16px}
.trial__intro p{color:var(--muted);margin-bottom:18px}
.trial__intro strong{color:var(--text)}
.trial__bullets{list-style:none;display:flex;flex-direction:column;gap:10px}
.trial__bullets li{font-size:14.5px;color:var(--muted)}
.trial__form{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;backdrop-filter:blur(8px)}
.field{margin-bottom:16px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:7px}
.field label i{color:#ff8a8a;font-style:normal}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text);font-size:14.5px;font-family:inherit;transition:border-color .2s,box-shadow .2s;
}
.field textarea{resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(91,108,255,.22)}
.field input::placeholder,.field textarea::placeholder{color:var(--muted-2)}
.field select{color-scheme:dark}
.field select option{background:#0b132b;color:#eaf0ff}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.err{display:block;color:#ff9a9a;font-size:12.5px;margin-top:6px;min-height:1px}
.hint{display:block;color:var(--muted-2);font-size:12px;margin-top:6px}
.agree{display:flex;align-items:flex-start;gap:9px;font-size:13.5px;color:var(--muted);margin:4px 0 6px;cursor:pointer}
.agree input{margin-top:4px;accent-color:var(--brand)}
.trial__note{font-size:12px;color:var(--muted-2);margin-top:12px;text-align:center}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--line);background:linear-gradient(180deg,#0a142e,#070f24);margin-top:40px}
.footer__inner{max-width:var(--maxw);margin:0 auto;padding:54px 24px 30px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px}
.footer__brand p{color:var(--muted-2);font-size:13.5px;margin-top:12px;max-width:300px}
.footer__col h5{font-size:14px;margin-bottom:14px;color:var(--text)}
.footer__col a{display:block;color:var(--muted-2);font-size:13.5px;margin-bottom:9px;transition:color .2s}
.footer__col a:hover{color:var(--text)}
.footer__bar{max-width:var(--maxw);margin:0 auto;padding:18px 24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;font-size:12.5px;color:var(--muted-2);flex-wrap:wrap;gap:8px}

/* ---------- 弹窗 ---------- */
.modal{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:20px}
.modal.open{display:flex}
.modal__mask{position:absolute;inset:0;background:rgba(4,9,22,.72);backdrop-filter:blur(6px)}
.modal__panel{position:relative;width:min(460px,100%);background:linear-gradient(180deg,#121e40,#0d1733);border:1px solid var(--line);border-radius:22px;padding:32px 28px;box-shadow:var(--shadow);animation:pop .3s var(--ease)}
@keyframes pop{from{opacity:0;transform:scale(.94) translateY(10px)}to{opacity:1;transform:scale(1)}}
.modal__x{position:absolute;top:14px;right:16px;background:none;border:0;color:var(--muted);font-size:24px;cursor:pointer;line-height:1}
.modal__ok{width:56px;height:56px;border-radius:50%;background:var(--grad);color:#fff;font-size:28px;display:grid;place-items:center;margin:0 auto 14px;box-shadow:0 14px 30px -12px rgba(123,91,255,.8)}
.modal__panel h3{text-align:center;font-size:22px;font-weight:800}
.modal__sub{text-align:center;color:var(--muted);font-size:14px;margin:8px 0 18px}
.modal__sub b{color:var(--gold)}
.cred{border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-bottom:18px}
.cred__row{display:grid;grid-template-columns:78px 1fr auto;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--line);font-size:13.5px}
.cred__row:last-child{border-bottom:0}
.cred__row span{color:var(--muted-2)}
.cred__row code{font-family:"SFMono-Regular",Consolas,monospace;color:var(--text);font-size:13px;word-break:break-all}
.cred__url{color:var(--brand);font-size:12.5px;word-break:break-all}
.cred__pass{color:var(--gold);font-weight:600;letter-spacing:.04em}
.cred__row--muted{background:rgba(255,255,255,.03)}
.copy{background:rgba(255,255,255,.08);border:1px solid var(--line);color:var(--muted);border-radius:8px;padding:4px 10px;font-size:12px;cursor:pointer;transition:background .2s}
.copy:hover{background:rgba(255,255,255,.16);color:var(--text)}
.modal__tip{font-size:12px;color:var(--muted-2);text-align:center;margin-top:14px}

/* ---------- Toast ---------- */
.toast{position:fixed;left:50%;bottom:40px;transform:translateX(-50%) translateY(20px);background:#16224a;border:1px solid var(--line);color:var(--text);padding:13px 22px;border-radius:12px;font-size:14px;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.35s var(--ease);z-index:120;max-width:90vw}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.err{background:#3a1620;border-color:#7a2a3a}

/* ---------- 滚动揭示动画 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:980px){
  .hero__inner{grid-template-columns:1fr;gap:30px}
  .hero__art{order:-1}
  .features{grid-template-columns:repeat(2,1fr)}
  .pricing{grid-template-columns:repeat(2,1fr)}
  .about{grid-template-columns:1fr;gap:30px}
  .trial__inner{grid-template-columns:1fr;gap:30px}
  .contact__cards{grid-template-columns:repeat(2,1fr)}
  .footer__inner{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  .nav__links{position:fixed;top:64px;right:16px;left:16px;flex-direction:column;gap:6px;background:rgba(12,22,48,.97);backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:16px;padding:14px;display:none}
  .nav__links.open{display:flex}
  .nav__links a{padding:10px 12px;border-radius:10px}
  .nav__links a:not(.nav__cta)::after{display:none}
  .nav__cta{text-align:center}
  .nav__toggle{display:flex}
  .hero{padding-top:120px}
  .hero__trust{gap:24px}
  .features{grid-template-columns:1fr}
  .pricing{grid-template-columns:1fr}
  .contact__cards{grid-template-columns:1fr}
  .values{grid-template-columns:1fr}
  .about__stats{grid-template-columns:1fr 1fr}
  .footer__inner{grid-template-columns:1fr}
  .section{padding:72px 18px}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .orb,.phone,.hero__scroll span{animation:none}
}