:root{
  --main:#818cf8;
  --accent:#c084fc;
  --bg:#1e1b4b;
  --text:#e0e7ff;
  --bg-soft:#272358;
  --bg-card:#2c2866;
  --line:rgba(129,140,248,.22);
  --muted:#a5b4fc;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Inter','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  overflow-x:hidden;
  line-height:1.75;
}
h1,h2,h3,h4,.hand{
  font-family:'Inter','PingFang SC',system-ui,sans-serif;
  font-weight:800;
  letter-spacing:-.02em;
}
.hand{letter-spacing:.01em}
a{text-decoration:none;color:inherit}
::selection{background:var(--accent);color:#1e1b4b}

/* ---------- 装饰几何体 ---------- */
.geo{position:absolute;pointer-events:none;opacity:.5;z-index:0}
.geo-circle{border-radius:50%;background:var(--main);filter:blur(2px)}
.geo-square{border-radius:14px;background:var(--accent)}
.geo-tri{width:0;height:0;border-style:solid}

/* ---------- 导航 ---------- */
.navbar{
  background:rgba(30,27,75,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  padding:.85rem 0;
  z-index:1050;
}
.navbar-brand{
  font-weight:900;
  font-size:1.42rem;
  color:#fff!important;
  display:flex;align-items:center;gap:.5rem;
}
.brand-dot{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(135deg,var(--main),var(--accent));
  display:grid;place-items:center;color:#1e1b4b;font-size:1rem;
  box-shadow:0 6px 18px rgba(192,132,252,.4);
}
.navbar-nav .nav-link{
  color:var(--muted)!important;
  font-weight:600;
  font-size:.95rem;
  padding:.45rem 1rem!important;
  border-radius:999px;
  transition:.25s;
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active{
  color:#fff!important;
  background:rgba(129,140,248,.16);
}
.navbar-toggler{border:1px solid var(--line);color:var(--text);padding:.3rem .6rem}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(129,140,248,.3)}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:92vh;
  display:flex;align-items:center;
  padding:7rem 0 5rem;
  overflow:hidden;
}
.hero-parallax{
  position:absolute;inset:-20% -10%;
  z-index:0;
  background:
    radial-gradient(circle at 18% 28%,rgba(129,140,248,.45),transparent 42%),
    radial-gradient(circle at 82% 22%,rgba(192,132,252,.42),transparent 45%),
    radial-gradient(circle at 60% 82%,rgba(129,140,248,.25),transparent 50%);
  will-change:transform;
}
.hero-grid-lines{
  position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(rgba(129,140,248,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(129,140,248,.06) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 78%);
}
.hero-inner{position:relative;z-index:2;width:100%}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.42rem 1.1rem;border-radius:999px;
  border:1px solid var(--line);
  background:rgba(129,140,248,.1);
  font-size:.86rem;font-weight:600;color:var(--muted);
  margin-bottom:1.6rem;
}
.hero h1{
  font-size:clamp(2.4rem,5.4vw,4rem);
  line-height:1.08;
  color:#fff;
  margin-bottom:1.3rem;
}
.hero h1 .hl{
  background:linear-gradient(115deg,var(--main),var(--accent));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.hero-lead{
  font-size:1.08rem;
  color:var(--muted);
  max-width:610px;
  margin-bottom:2rem;
}
.btn-capsule{
  display:inline-flex;align-items:center;gap:.55rem;
  border-radius:999px;
  padding:.82rem 1.9rem;
  font-weight:700;font-size:.98rem;
  border:none;cursor:pointer;
  transition:.28s;
}
.btn-primary-capsule{
  background:linear-gradient(120deg,var(--main),var(--accent));
  color:#1a1740;
  box-shadow:0 14px 32px rgba(129,140,248,.32);
}
.btn-primary-capsule:hover{
  transform:translateY(-3px);
  box-shadow:0 20px 42px rgba(192,132,252,.45);
  color:#171338;
}
.btn-ghost-capsule{
  background:transparent;
  border:1.5px solid var(--line);
  color:var(--text);
}
.btn-ghost-capsule:hover{
  border-color:var(--main);
  background:rgba(129,140,248,.1);
  transform:translateY(-3px);
}

/* 标签云 */
.tagcloud{
  margin-top:2.8rem;
  display:flex;flex-wrap:wrap;gap:.65rem;
  max-width:860px;
}
.tag-pill{
  padding:.4rem 1.05rem;
  border-radius:999px;
  font-size:.86rem;font-weight:600;
  background:rgba(129,140,248,.1);
  border:1px solid var(--line);
  color:var(--muted);
  opacity:0;
  transform:translateY(14px);
  transition:.3s;
}
.tag-pill:hover{
  background:rgba(192,132,252,.2);
  border-color:var(--accent);
  color:#fff;
  transform:translateY(-3px) scale(1.04);
}
.tag-pill.show{opacity:1;transform:translateY(0)}

/* ---------- 通用区块 ---------- */
.section{padding:5.5rem 0;position:relative}
.sec-eyebrow{
  font-size:.82rem;font-weight:700;letter-spacing:.18em;
  text-transform:uppercase;color:var(--accent);
  margin-bottom:.9rem;
}
.sec-title{
  font-size:clamp(1.8rem,3.4vw,2.7rem);
  color:#fff;margin-bottom:1rem;line-height:1.2;
}
.sec-sub{color:var(--muted);max-width:640px;font-size:1.02rem}

/* ---------- 步骤条 ---------- */
.steps{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1.4rem;
  margin-top:3rem;
}
.steps::before{
  content:"";
  position:absolute;top:32px;left:8%;right:8%;height:2px;
  background:linear-gradient(90deg,var(--main),var(--accent));
  opacity:.35;z-index:0;
}
.step{position:relative;z-index:1;text-align:center}
.step-num{
  width:66px;height:66px;margin:0 auto 1.1rem;
  border-radius:50%;
  display:grid;place-items:center;
  font-weight:900;font-size:1.35rem;color:#1e1b4b;
  background:linear-gradient(135deg,var(--main),var(--accent));
  box-shadow:0 10px 26px rgba(129,140,248,.35);
  transition:.3s;
}
.step:hover .step-num{transform:translateY(-6px) rotate(-6deg)}
.step h3{font-size:1.06rem;color:#fff;margin-bottom:.5rem;font-weight:700}
.step p{font-size:.92rem;color:var(--muted);margin:0}

/* ---------- 卡片网格 ---------- */
.cards-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1.6rem;
  margin-top:3rem;
}
.feature-card{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:22px;
  padding:2.1rem 1.8rem;
  position:relative;
  overflow:hidden;
  transition:.32s cubic-bezier(.22,.61,.36,1);
}
.feature-card::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 88% 8%,rgba(192,132,252,.18),transparent 55%);
  opacity:0;transition:.35s;pointer-events:none;
}
.feature-card:hover{
  transform:translateY(-10px);
  box-shadow:0 28px 54px rgba(10,6,40,.62);
  border-color:rgba(192,132,252,.45);
}
.feature-card:hover::after{opacity:1}
.fc-icon{
  width:56px;height:56px;border-radius:17px;
  display:grid;place-items:center;
  font-size:1.32rem;
  background:rgba(129,140,248,.14);
  color:var(--main);
  margin-bottom:1.25rem;
  transition:.32s;
}
.feature-card:hover .fc-icon{
  background:linear-gradient(135deg,var(--main),var(--accent));
  color:#1e1b4b;
  transform:rotate(-8deg) scale(1.06);
}
.feature-card h3{font-size:1.16rem;color:#fff;margin-bottom:.6rem;font-weight:700}
.feature-card p{font-size:.94rem;color:var(--muted);margin:0}
.fc-tag{
  display:inline-block;margin-top:1.1rem;
  font-size:.76rem;font-weight:700;letter-spacing:.06em;
  color:var(--accent);text-transform:uppercase;
}

/* ---------- 长文区 ---------- */
.longread{
  background:var(--bg-soft);
  border-radius:32px;
  padding:3.4rem 3rem;
  border:1px solid var(--line);
  position:relative;overflow:hidden;
}
.longread h2{font-size:clamp(1.7rem,3vw,2.3rem);color:#fff;margin-bottom:1.4rem}
.longread h3{font-size:1.2rem;color:var(--main);margin:2rem 0 .7rem;font-weight:700}
.longread p{color:#c7d2fe;font-size:1rem;margin-bottom:1.05rem}
.longread .quote{
  border-left:3px solid var(--accent);
  padding:.4rem 0 .4rem 1.3rem;
  margin:1.8rem 0;
  color:#fff;font-weight:600;font-size:1.06rem;
}
.read-list{list-style:none;padding:0;margin:1rem 0 1.4rem}
.read-list li{
  position:relative;padding-left:1.9rem;
  color:#c7d2fe;margin-bottom:.7rem;font-size:.98rem;
}
.read-list li::before{
  content:"\f058";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:.05rem;
  color:var(--accent);font-size:.95rem;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:3rem auto 0}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:18px;
  margin-bottom:1rem;
  overflow:hidden;
  transition:.28s;
}
.faq-item:hover{border-color:rgba(192,132,252,.4)}
.faq-q{
  width:100%;text-align:left;
  background:transparent;border:none;
  padding:1.25rem 1.5rem;
  color:#fff;font-weight:700;font-size:1.02rem;
  display:flex;justify-content:space-between;align-items:center;gap:1rem;
  cursor:pointer;
}
.faq-q i{color:var(--accent);transition:.3s;flex-shrink:0}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .4s ease;
}
.faq-a p{
  padding:0 1.5rem 1.35rem;
  margin:0;color:var(--muted);font-size:.96rem;
}
.faq-item.open .faq-a{max-height:340px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:32px;
  padding:4rem 2.5rem;
  text-align:center;
  background:linear-gradient(125deg,rgba(129,140,248,.2),rgba(192,132,252,.16));
  border:1px solid var(--line);
}
.cta-band h2{
  font-size:clamp(1.9rem,3.6vw,2.9rem);
  color:#fff;margin-bottom:1rem;position:relative;z-index:2;
}
.cta-band p{
  color:#d7ddff;max-width:560px;margin:0 auto 2rem;
  position:relative;z-index:2;
}
.cta-band .btn-capsule{position:relative;z-index:2}

/* ---------- 友情链接 ---------- */
.friendlinks{
  padding:3.2rem 0 2.4rem;
  border-top:1px solid var(--line);
}
.fl-title{
  font-size:.9rem;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:var(--muted);margin-bottom:1.1rem;
}
.fl-body{color:var(--muted);font-size:.92rem;word-break:break-all}

/* ---------- 页脚 ---------- */
footer{
  background:#151238;
  border-top:1px solid var(--line);
  padding:3.2rem 0 2rem;
}
.foot-brand{
  font-size:1.35rem;font-weight:900;color:#fff;
  display:flex;align-items:center;gap:.55rem;margin-bottom:.9rem;
}
.foot-desc{color:var(--muted);font-size:.93rem;max-width:340px}
.foot-h{font-size:.87rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#fff;margin-bottom:1rem}
.foot-links{list-style:none;padding:0;margin:0}
.foot-links li{margin-bottom:.6rem}
.foot-links a{color:var(--muted);font-size:.94rem;transition:.22s}
.foot-links a:hover{color:var(--accent)}
.foot-bottom{
  margin-top:2.4rem;padding-top:1.5rem;
  border-top:1px solid var(--line);
  color:#8b93d8;font-size:.88rem;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:.8rem;
}

/* ---------- 滚动动画 ---------- */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .8s ease,transform .8s cubic-bezier(.22,.61,.36,1)}
.reveal.visible{opacity:1;transform:translateY(0)}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}
.d4{transition-delay:.32s}.d5{transition-delay:.4s}

/* ---------- 响应式 ---------- */
@media(max-width:991px){
  .steps{grid-template-columns:repeat(2,1fr);row-gap:2.2rem}
  .steps::before{display:none}
  .cards-grid{grid-template-columns:repeat(2,1fr)}
  .longread{padding:2.4rem 1.7rem}
}
@media(max-width:767px){
  .hero{min-height:auto;padding:6rem 0 4rem}
  .hero h1{font-size:2.35rem}
  .cards-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step{text-align:left;display:flex;gap:1.1rem;align-items:flex-start}
  .step-num{margin:0;flex-shrink:0;width:54px;height:54px;font-size:1.1rem}
  .cta-band{padding:2.8rem 1.4rem}
  .navbar-collapse{padding-top:1rem}
  .longread{border-radius:22px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* --- 子页面追加 --- */
.guide-card {
    background:var(--bg-card);
    border:1px solid var(--line);
    border-radius:18px;
    padding:26px 24px;
    height:100%;
    transition:transform .25s ease, border-color .25s ease;
  }
.guide-card:hover {transform:translateY(-4px);border-color:var(--main);}
.guide-card h3 {font-size:1.08rem;font-weight:700;margin-bottom:10px;color:var(--text);}
.guide-card p {color:var(--muted);font-size:.94rem;line-height:1.75;margin-bottom:0;}
.guide-icon {
    width:44px;height:44px;border-radius:12px;
    display:inline-flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,var(--main),var(--accent));
    color:#fff;font-size:1.05rem;margin-bottom:16px;
  }
.step-row {
    display:flex;gap:18px;align-items:flex-start;
    background:var(--bg-soft);
    border:1px solid var(--line);
    border-radius:16px;
    padding:22px 24px;
    margin-bottom:16px;
  }
.step-row h3 {font-size:1.02rem;font-weight:700;margin-bottom:6px;}
.step-row p {color:var(--muted);font-size:.93rem;line-height:1.78;margin-bottom:0;}
.faq-item h3 {font-size:1rem;font-weight:700;margin-bottom:8px;color:var(--text);}
.faq-item p {color:var(--muted);font-size:.92rem;line-height:1.78;margin-bottom:0;}
.mode-table {
    width:100%;
    border-collapse:collapse;
    background:var(--bg-card);
    border-radius:14px;
    overflow:hidden;
    border:1px solid var(--line);
  }
.mode-table th,.mode-table td {
    padding:14px 18px;
    text-align:left;
    font-size:.92rem;
    border-bottom:1px solid var(--line);
    color:var(--text);
  }
.mode-table th {
    background:var(--bg-soft);
    color:var(--muted);
    font-weight:600;
    font-size:.85rem;
    letter-spacing:.04em;
  }
.mode-table tr:last-child td {border-bottom:none;}
.mode-table td {color:var(--muted);}
.mode-table td:first-child {color:var(--text);font-weight:600;}
.note-box {
    border-left:3px solid var(--accent);
    background:rgba(192,132,252,.08);
    border-radius:0 12px 12px 0;
    padding:16px 20px;
    color:var(--muted);
    font-size:.92rem;
    line-height:1.8;
    margin-top:22px;
  }
.step-row {flex-direction:row;padding:18px;gap:14px;}
.mode-table th,.mode-table td {padding:11px 12px;font-size:.86rem;}

/* --- 子页面追加 --- */
.page-hero {padding:130px 0 60px;position:relative;overflow:hidden;}
.page-hero h1 {font-weight:800;font-size:clamp(1.8rem,4.2vw,3rem);line-height:1.25;margin:0 0 18px;}
.page-hero h1 .hl {background:linear-gradient(100deg,var(--main),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;}
.page-hero p {color:var(--muted);max-width:680px;font-size:1.05rem;line-height:1.9;margin:0;}
.about-card {background:var(--bg-card);border:1px solid var(--line);border-radius:18px;padding:26px 24px;height:100%;transition:transform .25s ease,border-color .25s ease;}
.about-card:hover {transform:translateY(-4px);border-color:rgba(192,132,252,.5);}
.about-card .ic {width:48px;height:48px;border-radius:13px;display:flex;align-items:center;justify-content:center;background:rgba(129,140,248,.15);color:var(--main);font-size:1.25rem;margin-bottom:16px;}
.about-card h3 {font-size:1.08rem;font-weight:700;margin:0 0 10px;color:var(--text);}
.about-card p {margin:0;color:var(--muted);font-size:.94rem;line-height:1.85;}
.about-list {list-style:none;padding:0;margin:0;}
.about-list li {position:relative;padding-left:26px;margin-bottom:14px;color:var(--muted);line-height:1.85;font-size:.96rem;}
.about-list li::before {content:"\f058";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:2px;color:var(--accent);font-size:.85rem;}
.about-list li strong {color:var(--text);}
.timeline {border-left:2px solid var(--line);padding-left:26px;margin:0;list-style:none;}
.timeline li {position:relative;padding-bottom:26px;}
.timeline li:last-child {padding-bottom:0;}
.timeline li::before {content:"";position:absolute;left:-33px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--main);box-shadow:0 0 0 4px rgba(129,140,248,.18);}
.timeline h4 {font-size:1rem;font-weight:700;margin:0 0 6px;color:var(--text);}
.timeline p {margin:0;color:var(--muted);font-size:.93rem;line-height:1.8;}
.stat-box {background:var(--bg-soft);border:1px solid var(--line);border-radius:16px;padding:22px 16px;text-align:center;height:100%;}
.stat-box .num {font-size:1.75rem;font-weight:800;background:linear-gradient(100deg,var(--main),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2;}
.stat-box .lab {color:var(--muted);font-size:.86rem;margin-top:6px;}
.faq-item h4 {font-size:1rem;font-weight:700;color:var(--text);margin:0 0 8px;}
.page-hero {padding:110px 0 40px;}

/* --- 子页面追加 --- */
.policy-wrap {max-width:900px;margin:0 auto}
.policy-card {background:var(--bg-card);border:1px solid var(--line);border-radius:18px;padding:28px 26px;margin-bottom:22px}
.policy-card h3 {font-size:1.15rem;font-weight:700;color:var(--text);margin-bottom:14px;display:flex;align-items:flex-start;gap:10px;line-height:1.5}
.policy-card h3 i {color:var(--main);margin-top:3px;flex-shrink:0}
.policy-card p,.policy-card li {color:var(--muted);font-size:.96rem;line-height:1.85}
.policy-card ul {padding-left:1.15rem;margin-bottom:0}
.policy-card li {margin-bottom:8px}
.policy-card li strong {color:var(--text);font-weight:600}
.policy-card p:last-child {margin-bottom:0}
.policy-note {background:var(--bg-soft);border-left:3px solid var(--accent);border-radius:12px;padding:16px 18px;color:var(--muted);font-size:.93rem;line-height:1.8}
.policy-note strong {color:var(--text)}
.policy-meta {display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.policy-meta .tag-pill {font-size:.82rem}
.toc {display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
.toc a {display:inline-block;padding:7px 15px;border-radius:999px;background:rgba(129,140,248,.1);border:1px solid var(--line);color:var(--muted);text-decoration:none;font-size:.85rem;transition:.2s}
.toc a:hover {background:rgba(129,140,248,.22);color:var(--text);border-color:var(--main)}
.policy-card {padding:22px 18px;border-radius:14px}
.policy-card h3 {font-size:1.05rem}

/* --- 子页面追加 --- */
.legal-wrap {max-width:900px;margin:0 auto;}
.legal-card {
    background:var(--bg-card);
    border:1px solid var(--line);
    border-radius:22px;
    padding:2rem 2.2rem;
    margin-bottom:1.4rem;
  }
.legal-card h2 {
    font-size:1.28rem;
    font-weight:800;
    color:var(--text);
    margin-bottom:.9rem;
    display:flex;
    align-items:center;
    gap:.6rem;
  }
.legal-card h2 i {color:var(--main);font-size:1.05rem;}
.legal-card p,.legal-card li {
    color:var(--muted);
    font-size:.96rem;
    line-height:1.95;
    margin-bottom:.65rem;
  }
.legal-card ul {padding-left:1.15rem;margin-bottom:0;}
.legal-card li::marker {color:var(--accent);}
.legal-card strong {color:var(--text);font-weight:600;}
.legal-updated {
    display:inline-flex;align-items:center;gap:.45rem;
    background:var(--bg-soft);
    border:1px solid var(--line);
    color:var(--muted);
    border-radius:999px;
    padding:.35rem .95rem;
    font-size:.82rem;
    margin-bottom:1.6rem;
  }
.legal-toc {
    background:var(--bg-soft);
    border:1px solid var(--line);
    border-radius:18px;
    padding:1.2rem 1.5rem;
    margin-bottom:2rem;
  }
.legal-toc span {display:block;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--main);font-weight:700;margin-bottom:.6rem;}
.legal-toc a {color:var(--text);text-decoration:none;font-size:.92rem;margin-right:1.1rem;display:inline-block;padding:.2rem 0;border-bottom:1px dashed transparent;transition:.2s;}
.legal-toc a:hover {color:var(--accent);border-bottom-color:var(--accent);}
.legal-note {
    border-left:3px solid var(--accent);
    background:rgba(192,132,252,.08);
    border-radius:0 14px 14px 0;
    padding:.9rem 1.2rem;
    color:var(--muted);
    font-size:.92rem;
    line-height:1.85;
    margin-top:1rem;
  }
.legal-card {padding:1.4rem 1.2rem;border-radius:18px;}
.legal-card h2 {font-size:1.12rem;}