:root{
  --primary:#38bdf8;
  --accent:#a78bfa;
  --bg:#0f172a;
  --bg-soft:#16213b;
  --bg-card:#1b2743;
  --text:#e2e8f0;
  --text-dim:#94a3b8;
  --line:rgba(148,163,184,.18);
  --shadow-lg:0 24px 48px -12px rgba(0,0,0,.75);
  --shadow-md:0 14px 28px -10px rgba(0,0,0,.65);
  --shadow-inset:inset 0 1px 0 rgba(255,255,255,.08);
  --grad-main:linear-gradient(135deg,#38bdf8 0%,#a78bfa 100%);
  --grad-soft:linear-gradient(160deg,rgba(56,189,248,.16),rgba(167,139,250,.08));
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Inter','PingFang SC','Microsoft YaHei',sans-serif;
  font-weight:400;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{
  font-family:'Inter','PingFang SC','Microsoft YaHei',sans-serif;
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.15;
}
a{text-decoration:none;}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-family:'Inter',ui-monospace,monospace;}

/* ============ NAV ============ */
.gd-nav{
  position:fixed;top:0;left:0;right:0;z-index:1050;
  padding:18px 0;
  background:rgba(15,23,42,0);
  transition:background .35s ease,padding .35s ease,box-shadow .35s ease,border-color .35s ease;
  border-bottom:1px solid transparent;
}
.gd-nav.scrolled{
  padding:10px 0;
  background:rgba(15,23,42,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  box-shadow:0 12px 30px -14px rgba(0,0,0,.8);
}
.gd-brand{
  font-weight:900;font-size:1.4rem;color:var(--text)!important;
  display:flex;align-items:center;gap:.55rem;letter-spacing:-.03em;
}
.gd-brand i{
  color:var(--primary);
  filter:drop-shadow(0 0 10px rgba(56,189,248,.6));
  font-size:1.25rem;
}
.gd-nav .nav-link{
  color:var(--text-dim)!important;
  font-weight:600;font-size:.95rem;
  padding:.45rem 1rem!important;
  border-radius:10px;
  transition:color .2s,background .2s;
}
.gd-nav .nav-link:hover,
.gd-nav .nav-link.active{
  color:var(--text)!important;
  background:rgba(56,189,248,.1);
}
.navbar-toggler{
  border:1px solid var(--line);border-radius:10px;padding:.35rem .6rem;
  background:rgba(27,39,67,.7);
}
.navbar-toggler:focus{box-shadow:none;}
.navbar-toggler i{color:var(--text);font-size:1.1rem;}

/* ============ HERO ============ */
.gd-hero{
  position:relative;
  min-height:100vh;
  display:flex;align-items:center;
  padding:150px 0 100px;
  overflow:hidden;
}
.gd-hero-img{
  position:absolute;inset:0;
  background-image:url('{随机图片}');
  background-size:cover;background-position:center;
  filter:brightness(.32) saturate(1.15);
  transform:scale(1.04);
}
.gd-hero-veil{
  position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 25% 20%,rgba(56,189,248,.20),transparent 55%),
    radial-gradient(ellipse at 85% 75%,rgba(167,139,250,.22),transparent 55%),
    linear-gradient(180deg,rgba(15,23,42,.55) 0%,rgba(15,23,42,.55) 40%,var(--bg) 100%);
}
.gd-hero-inner{position:relative;z-index:2;}
.gd-badge{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.4rem 1.1rem;border-radius:100px;
  background:rgba(56,189,248,.14);
  border:1px solid rgba(56,189,248,.4);
  color:var(--primary);
  font-size:.82rem;font-weight:700;letter-spacing:.08em;
  box-shadow:0 0 24px -6px rgba(56,189,248,.5),var(--shadow-inset);
  margin-bottom:1.6rem;
}
.gd-hero h1{
  font-size:clamp(2.4rem,6.2vw,5rem);
  font-weight:900;
  margin-bottom:1.4rem;
  text-shadow:0 8px 32px rgba(0,0,0,.7);
}
.gd-hero h1 .hl{
  background:var(--grad-main);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  filter:drop-shadow(0 6px 24px rgba(56,189,248,.4));
}
.gd-hero p.lead{
  color:var(--text-dim);
  font-size:clamp(1rem,1.6vw,1.18rem);
  max-width:640px;
  margin-bottom:2.2rem;
  text-shadow:0 2px 12px rgba(0,0,0,.6);
}
.gd-hero-stats{
  display:flex;flex-wrap:wrap;gap:1.6rem 2.6rem;
  margin-top:2.6rem;padding-top:2rem;
  border-top:1px solid var(--line);
}
.gd-stat .num{
  font-size:clamp(1.8rem,3.2vw,2.6rem);
  font-weight:900;
  background:var(--grad-main);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  line-height:1;
}
.gd-stat .lbl{
  color:var(--text-dim);font-size:.82rem;font-weight:600;letter-spacing:.1em;margin-top:.55rem;
}

/* ============ BUTTONS ============ */
.btn-gd{
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;gap:.6rem;
  padding:.9rem 2.1rem;border-radius:14px;border:none;
  font-weight:800;font-size:.98rem;color:#08121f;
  background:var(--grad-main);
  box-shadow:0 14px 32px -10px rgba(56,189,248,.6),var(--shadow-inset);
  transition:transform .25s ease,box-shadow .25s ease;
}
.btn-gd:hover{
  transform:translateY(-3px);
  color:#08121f;
  box-shadow:0 20px 42px -10px rgba(167,139,250,.7),var(--shadow-inset);
}
.btn-gd::after{
  content:"";position:absolute;top:0;left:-120%;
  width:60%;height:100%;
  background:linear-gradient(105deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-18deg);
  transition:left .65s ease;
}
.btn-gd:hover::after{left:140%;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:.6rem;
  padding:.9rem 2rem;border-radius:14px;
  border:1px solid rgba(226,232,240,.28);
  color:var(--text);font-weight:700;font-size:.98rem;
  background:rgba(27,39,67,.45);
  box-shadow:var(--shadow-md),var(--shadow-inset);
  transition:border-color .25s,background .25s,transform .25s;
}
.btn-ghost:hover{
  border-color:var(--primary);
  background:rgba(56,189,248,.12);
  color:var(--text);
  transform:translateY(-3px);
}

/* ============ SECTIONS ============ */
.gd-sec{padding:96px 0;position:relative;}
.gd-sec.alt{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-soft) 50%,var(--bg) 100%);}
.sec-head{margin-bottom:3.6rem;max-width:760px;}
.sec-tag{
  display:inline-flex;align-items:center;gap:.5rem;
  font-size:.78rem;font-weight:800;letter-spacing:.18em;
  color:var(--accent);text-transform:uppercase;margin-bottom:1rem;
}
.sec-head h2{
  font-size:clamp(1.9rem,4vw,3rem);
  margin-bottom:1rem;
  font-weight:900;
}
.sec-head p{color:var(--text-dim);font-size:1.02rem;margin:0;}

/* ============ FEATURE CARDS ============ */
.gd-card{
  height:100%;
  background:linear-gradient(165deg,var(--bg-card) 0%,#141e36 100%);
  border:1px solid var(--line);
  border-radius:20px;
  padding:2.2rem 1.9rem;
  box-shadow:var(--shadow-md),var(--shadow-inset);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
  position:relative;
  overflow:hidden;
}
.gd-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad-main);
  opacity:0;transition:opacity .3s ease;
}
.gd-card:hover{
  transform:translateY(-8px);
  border-color:rgba(56,189,248,.45);
  box-shadow:0 30px 56px -16px rgba(0,0,0,.85),0 0 0 1px rgba(56,189,248,.2),var(--shadow-inset);
}
.gd-card:hover::before{opacity:1;}
.gd-ico{
  width:60px;height:60px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.5rem;color:#08121f;
  background:var(--grad-main);
  box-shadow:0 12px 24px -10px rgba(56,189,248,.7),var(--shadow-inset);
  margin-bottom:1.5rem;
}
.gd-card h3{font-size:1.22rem;font-weight:800;margin-bottom:.85rem;}
.gd-card p{color:var(--text-dim);font-size:.94rem;margin:0;line-height:1.8;}
.gd-card .fig{
  margin-top:1.4rem;font-size:1.9rem;font-weight:900;
  color:var(--primary);letter-spacing:-.03em;
}
.gd-card .fig small{font-size:.78rem;color:var(--text-dim);font-weight:600;letter-spacing:.06em;margin-left:.4rem;}

/* ============ TABLE ============ */
.gd-table-wrap{
  border-radius:22px;overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-lg),var(--shadow-inset);
  background:var(--bg-card);
}
.gd-table{width:100%;border-collapse:collapse;margin:0;}
.gd-table thead th{
  background:linear-gradient(180deg,#22314f,#1a2740);
  color:var(--text);
  font-weight:800;font-size:.9rem;letter-spacing:.05em;
  padding:1.15rem 1.3rem;
  border-bottom:1px solid var(--line);
  text-align:left;white-space:nowrap;
}
.gd-table thead th:first-child{border-top-left-radius:0;}
.gd-table tbody td{
  padding:1.1rem 1.3rem;
  border-bottom:1px solid var(--line);
  color:var(--text-dim);font-size:.94rem;vertical-align:middle;
}
.gd-table tbody tr:last-child td{border-bottom:none;}
.gd-table tbody tr{transition:background .22s ease;}
.gd-table tbody tr:hover{background:rgba(56,189,248,.06);}
.gd-table tbody td:first-child{
  color:var(--text);font-weight:700;
}
.pill{
  display:inline-block;padding:.24rem .78rem;border-radius:100px;
  font-size:.76rem;font-weight:800;letter-spacing:.04em;
}
.pill-a{background:rgba(56,189,248,.16);color:var(--primary);border:1px solid rgba(56,189,248,.4);}
.pill-b{background:rgba(167,139,250,.16);color:var(--accent);border:1px solid rgba(167,139,250,.4);}
.pill-c{background:rgba(148,163,184,.14);color:#cbd5e1;border:1px solid rgba(148,163,184,.35);}

/* ============ FAQ ============ */
.gd-accordion .accordion-item{
  background:linear-gradient(165deg,var(--bg-card),#141e36);
  border:1px solid var(--line);
  border-radius:16px!important;
  margin-bottom:1rem;
  overflow:hidden;
  box-shadow:var(--shadow-md),var(--shadow-inset);
}
.gd-accordion .accordion-button{
  background:transparent;
  color:var(--text);
  font-weight:800;font-size:1.02rem;
  padding:1.35rem 1.5rem;
  box-shadow:none!important;
  border:none;
}
.gd-accordion .accordion-button:not(.collapsed){
  color:var(--primary);
  background:rgba(56,189,248,.06);
}
.gd-accordion .accordion-button::after{
  filter:invert(1) brightness(1.6);
  width:1.1rem;height:1.1rem;background-size:1.1rem;
}
.gd-accordion .accordion-body{
  color:var(--text-dim);font-size:.95rem;
  padding:0 1.5rem 1.5rem;line-height:1.85;
}

/* ============ STEPS ============ */
.gd-steps{position:relative;padding-left:0;}
.gd-step{
  position:relative;
  display:flex;gap:1.6rem;
  padding-bottom:2.6rem;
}
.gd-step:last-child{padding-bottom:0;}
.gd-step::before{
  content:"";position:absolute;
  left:27px;top:56px;bottom:0;width:2px;
  background:linear-gradient(180deg,rgba(56,189,248,.55),rgba(167,139,250,.15));
}
.gd-step:last-child::before{display:none;}
.gd-step-num{
  flex:0 0 56px;height:56px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:1.25rem;color:#08121f;
  background:var(--grad-main);
  box-shadow:0 12px 26px -10px rgba(56,189,248,.7),var(--shadow-inset);
  position:relative;z-index:2;
}
.gd-step-body{
  background:linear-gradient(165deg,var(--bg-card),#141e36);
  border:1px solid var(--line);
  border-radius:16px;
  padding:1.4rem 1.7rem;
  box-shadow:var(--shadow-md),var(--shadow-inset);
  flex:1;
}
.gd-step-body h4{font-size:1.1rem;font-weight:800;margin-bottom:.55rem;}
.gd-step-body p{color:var(--text-dim);font-size:.94rem;margin:0;}

/* ============ CTA ============ */
.gd-cta{
  position:relative;overflow:hidden;
  border-radius:28px;
  padding:4rem 2.5rem;
  text-align:center;
  background:
    radial-gradient(ellipse at 20% 0%,rgba(56,189,248,.28),transparent 60%),
    radial-gradient(ellipse at 80% 100%,rgba(167,139,250,.28),transparent 60%),
    linear-gradient(165deg,#1b2743,#131d33);
  border:1px solid rgba(56,189,248,.28);
  box-shadow:var(--shadow-lg),var(--shadow-inset);
}
.gd-cta h2{font-size:clamp(1.9rem,4.2vw,3rem);margin-bottom:1.1rem;}
.gd-cta p{color:var(--text-dim);max-width:600px;margin:0 auto 2.2rem;font-size:1.02rem;}

/* ============ FOOTER ============ */
.gd-footer{
  background:#0a1120;
  border-top:1px solid var(--line);
  padding:64px 0 32px;
}
.gd-footer h5{
  font-size:.86rem;font-weight:800;letter-spacing:.14em;
  color:var(--text);text-transform:uppercase;margin-bottom:1.2rem;
}
.gd-footer a{color:var(--text-dim);font-size:.92rem;transition:color .2s;}
.gd-footer a:hover{color:var(--primary);}
.gd-footer ul{list-style:none;padding:0;margin:0;}
.gd-footer ul li{margin-bottom:.65rem;}
.gd-friend{
  padding:1.6rem 0;margin-top:2.4rem;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.gd-friend .ttl{
  font-size:.82rem;font-weight:800;letter-spacing:.16em;
  color:var(--accent);margin-bottom:.9rem;text-transform:uppercase;
}
.gd-friend-links{color:var(--text-dim);font-size:.9rem;line-height:2;}
.gd-copy{
  padding-top:2rem;color:#64748b;font-size:.86rem;text-align:center;
}

/* ============ REVEAL ============ */
.reveal{opacity:0;transform:translateY(38px);transition:opacity .8s cubic-bezier(.22,.61,.36,1),transform .8s cubic-bezier(.22,.61,.36,1);}
.reveal.in{opacity:1;transform:translateY(0);}

@media (max-width:991.98px){
  .gd-nav .navbar-collapse{
    background:rgba(16,25,44,.98);
    border:1px solid var(--line);
    border-radius:16px;
    padding:1rem;
    margin-top:.9rem;
    box-shadow:var(--shadow-lg);
  }
  .gd-hero{padding:130px 0 80px;min-height:auto;}
  .gd-sec{padding:70px 0;}
  .gd-step::before{left:23px;top:52px;}
  .gd-step-num{flex:0 0 48px;height:48px;font-size:1.05rem;}
  .gd-cta{padding:2.8rem 1.5rem;}
}
@media (max-width:575.98px){
  .gd-hero-stats{gap:1.2rem 1.8rem;}
  .gd-table thead th,.gd-table tbody td{padding:.85rem .9rem;font-size:.85rem;}
  .gd-card{padding:1.7rem 1.4rem;}
}

/* --- 子页面追加 --- */
/* 本页专属少量补充样式，复用站点变量 */
  .gd-nav .nav-link.active,
  .gd-nav .nav-link[aria-current="page"] {
    color: var(--primary);
  }
.guide-lead {
    color: var(--text-dim);
    font-size: 1.02rem;
    line-height: 1.9;
    max-width: 760px;
  }
.guide-toc {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 1.5rem 1.6rem;
    box-shadow: var(--shadow-md);
  }
.guide-toc h3 {
    font-size: .95rem;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 1rem;
    font-weight: 600;
  }
.guide-toc ol {
    margin: 0;
    padding-left: 1.15rem;
    color: var(--text-dim);
  }
.guide-toc ol li {
    margin-bottom: .55rem;
    line-height: 1.6;
  }
.guide-toc a {
    color: var(--text);
    text-decoration: none;
    border-bottom: 1px dashed rgba(148,163,184,.35);
    transition: color .2s ease, border-color .2s ease;
  }
.guide-toc a:hover {
    color: var(--primary);
    border-color: var(--primary);
  }
.guide-block {
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 1.7rem 1.75rem;
    height: 100%;
    box-shadow: var(--shadow-inset);
  }
.guide-block h3 {
    font-size: 1.12rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: .8rem;
    display: flex;
    align-items: center;
    gap: .55rem;
  }
.guide-block h3 i {
    color: var(--primary);
    font-size: .95rem;
  }
.guide-block p {
    color: var(--text-dim);
    line-height: 1.85;
    margin-bottom: .6rem;
    font-size: .95rem;
  }
.guide-block ul {
    margin: .5rem 0 0;
    padding-left: 1.1rem;
    color: var(--text-dim);
    line-height: 1.85;
    font-size: .95rem;
  }
.guide-block ul li::marker {
    color: var(--accent);
  }
.guide-note {
    background: var(--grad-soft);
    border: 1px solid var(--line);
    border-left: 3px solid var(--primary);
    border-radius: 14px;
    padding: 1.1rem 1.3rem;
    color: var(--text-dim);
    line-height: 1.85;
    font-size: .94rem;
  }
.guide-note strong { color: var(--text); }
.guide-kbd {
    display: inline-block;
    font-family: 'Inter', monospace;
    font-size: .82rem;
    padding: .1rem .45rem;
    border-radius: 6px;
    background: rgba(56,189,248,.12);
    border: 1px solid rgba(56,189,248,.3);
    color: var(--primary);
  }

/* --- 子页面追加 --- */
.rk-tabs {display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:2rem}
.rk-tab {padding:.6rem 1.15rem;border-radius:999px;border:1px solid var(--line);background:var(--bg-soft);color:var(--text-dim);font-size:.9rem;font-weight:600;cursor:pointer;transition:.25s}
.rk-tab:hover {color:var(--text);border-color:rgba(56,189,248,.5)}
.rk-tab.active {background:var(--grad-main);color:#0b1220;border-color:transparent;box-shadow:var(--shadow-md)}
.rk-row {display:flex;align-items:center;gap:1rem;padding:1rem 1.15rem;background:var(--bg-card);border:1px solid var(--line);border-radius:16px;margin-bottom:.75rem;transition:.25s;box-shadow:var(--shadow-inset)}
.rk-row:hover {transform:translateX(4px);border-color:rgba(56,189,248,.45);box-shadow:var(--shadow-md)}
.rk-rank {flex:0 0 46px;height:46px;display:flex;align-items:center;justify-content:center;border-radius:12px;font-weight:900;font-size:1.05rem;background:var(--bg-soft);color:var(--text-dim);font-family:'Inter',sans-serif}
.rk-rank.top1 {background:linear-gradient(135deg,#fbbf24,#f59e0b);color:#0b1220}
.rk-rank.top2 {background:linear-gradient(135deg,#cbd5e1,#94a3b8);color:#0b1220}
.rk-rank.top3 {background:linear-gradient(135deg,#f0a97a,#d97706);color:#0b1220}
.rk-main {flex:1 1 auto;min-width:0}
.rk-title {font-weight:700;color:var(--text);font-size:1rem;margin-bottom:.2rem;display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}
.rk-meta {font-size:.82rem;color:var(--text-dim);display:flex;gap:.9rem;flex-wrap:wrap}
.rk-meta span i {color:var(--primary);margin-right:.3rem}
.rk-score {flex:0 0 auto;text-align:right;font-family:'Inter',sans-serif}
.rk-score b {display:block;font-size:1.15rem;background:var(--grad-main);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.rk-score small {font-size:.72rem;color:var(--text-dim)}
.rk-note {font-size:.9rem;color:var(--text-dim);line-height:1.9}
.rk-note strong {color:var(--text)}
details.rk-faq {background:var(--bg-card);border:1px solid var(--line);border-radius:14px;padding:1rem 1.25rem;margin-bottom:.85rem}
details.rk-faq summary {cursor:pointer;font-weight:600;color:var(--text);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem}
details.rk-faq summary::-webkit-details-marker {display:none}
details.rk-faq summary::after {content:'\f078';font-family:'Font Awesome 6 Free';font-weight:900;font-size:.75rem;color:var(--primary);transition:.25s}
details.rk-faq[open] summary::after {transform:rotate(180deg)}
details.rk-faq p {margin:.85rem 0 0;font-size:.9rem;color:var(--text-dim);line-height:1.9}
.rk-row {gap:.7rem;padding:.85rem}
.rk-rank {flex-basis:38px;height:38px;font-size:.95rem}
.rk-score b {font-size:1rem}
.rk-meta {gap:.5rem;font-size:.76rem}

/* --- 子页面追加 --- */
/* 导航 */
.gd-nav {
  background:rgba(15,23,42,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  padding:.7rem 0;
  position:sticky;top:0;z-index:1030;
}
/* 页头 */
.gd-hero {
  position:relative;
  padding:5rem 0 4rem;
  overflow:hidden;
  background:var(--grad-soft);
  border-bottom:1px solid var(--line);
}
.gd-hero h1 span {
  background:var(--grad-main);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.gd-hero p.lead-txt {
  color:var(--text-dim);
  font-size:1.02rem;
  line-height:1.85;
  max-width:760px;
  margin-bottom:1.8rem;
}
.gd-hero-stats div {
  display:flex;flex-direction:column;
}
.gd-hero-stats strong {
  font-size:1.5rem;font-weight:800;
  background:var(--grad-main);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.gd-hero-stats small {color:var(--text-dim);font-size:.82rem;letter-spacing:.5px}
/* 按钮 */
.btn-gd {
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.72rem 1.5rem;
  border-radius:10px;
  border:none;
  background:var(--grad-main);
  color:#07111f;
  font-weight:700;font-size:.95rem;
  box-shadow:var(--shadow-md);
  transition:.22s;
}
/* 区块 */
.gd-sec {padding:4rem 0}
/* 分类卡片 */
.cat-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:1.4rem;
}
.cat-card {
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:16px;
  padding:1.6rem 1.5rem;
  box-shadow:var(--shadow-md),var(--shadow-inset);
  transition:.25s;
  display:flex;flex-direction:column;
  height:100%;
}
.cat-card:hover {
  transform:translateY(-5px);
  border-color:rgba(56,189,248,.42);
  box-shadow:var(--shadow-lg);
}
.cat-top {display:flex;align-items:center;gap:.85rem;margin-bottom:1rem}
.cat-ico {
  width:48px;height:48px;flex:0 0 48px;
  border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  background:var(--grad-soft);
  border:1px solid var(--line);
  font-size:1.2rem;color:var(--primary);
}
.cat-card h3 {
  font-size:1.12rem;font-weight:800;margin:0;
}
.cat-card h3 small {
  display:block;font-size:.74rem;font-weight:500;
  color:var(--text-dim);letter-spacing:1.2px;
  margin-top:.2rem;text-transform:uppercase;
}
.cat-card p {
  color:var(--text-dim);
  font-size:.9rem;line-height:1.8;
  margin-bottom:1.1rem;
  flex:1;
}
.cat-meta {
  display:flex;flex-wrap:wrap;gap:.45rem;
  margin-bottom:1.05rem;
}
.cat-link {
  display:inline-flex;align-items:center;gap:.4rem;
  font-size:.86rem;font-weight:700;
  color:var(--primary);
  transition:.2s;
}
.cat-link:hover {color:var(--accent);gap:.65rem}
/* 表格 */
.gd-table-wrap {
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--shadow-md);
}
.gd-table tbody tr:hover td {background:rgba(56,189,248,.045)}
.gd-table td.name {color:var(--text);font-weight:600}
.gd-table-wrap .scroll {overflow-x:auto}
/* 步骤 */
.gd-steps {display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1.3rem}
.gd-step .num {
  font-size:1.6rem;font-weight:900;
  background:var(--grad-main);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  line-height:1;margin-bottom:.7rem;display:block;
}
.gd-step h3 {font-size:1.02rem;font-weight:800;margin-bottom:.5rem}
.gd-step p {color:var(--text-dim);font-size:.88rem;line-height:1.8;margin:0}
/* 提示块 */
.note-box {
  background:var(--bg-soft);
  border:1px solid var(--line);
  border-left:3px solid var(--primary);
  border-radius:12px;
  padding:1.3rem 1.4rem;
  color:var(--text-dim);
  font-size:.92rem;
  line-height:1.85;
}
.note-box strong {color:var(--text)}
/* 页脚 */
.gd-foot {
  border-top:1px solid var(--line);
  background:var(--bg-soft);
  padding:3rem 0 1.6rem;
  margin-top:2rem;
}
.gd-foot h4 {
  font-size:.95rem;font-weight:800;margin-bottom:1rem;color:var(--text);
}
.gd-foot p,.gd-foot a {
  color:var(--text-dim);font-size:.88rem;line-height:1.9;
}
.gd-foot a:hover {color:var(--primary)}
.gd-foot ul {list-style:none;padding:0;margin:0}
.gd-foot ul li {margin-bottom:.45rem}
.gd-foot .brand-line {
  display:inline-flex;align-items:center;gap:.5rem;
  font-weight:800;color:var(--text);font-size:1.05rem;
  margin-bottom:.85rem;
}
.gd-foot .brand-line i {
  background:var(--grad-main);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.gd-foot .copy {
  border-top:1px solid var(--line);
  margin-top:2.2rem;padding-top:1.3rem;
  text-align:center;color:var(--text-dim);font-size:.82rem;
}
.cat-grid {grid-template-columns:1fr}

/* --- 子页面追加 --- */
.ar-card {background:var(--bg-card);border:1px solid var(--line);border-radius:18px;overflow:hidden;height:100%;box-shadow:var(--shadow-md);transition:transform .25s ease,border-color .25s ease}
.ar-card:hover {transform:translateY(-4px);border-color:rgba(56,189,248,.45)}
.ar-ava {width:72px;height:72px;border-radius:50%;object-fit:cover;border:2px solid rgba(56,189,248,.5);background:var(--bg-soft)}
.ar-name {font-weight:800;font-size:1.08rem;color:var(--text);margin:0}
.ar-role {font-size:.8rem;color:var(--primary);letter-spacing:.02em}
.ar-desc {color:var(--text-dim);font-size:.9rem;line-height:1.75;margin:0}
.ar-works {font-size:.82rem;color:var(--text-dim);border-top:1px dashed var(--line);padding-top:.7rem;margin-top:.9rem}
.ar-works strong {color:var(--text);font-weight:600}
.ar-stat {display:flex;gap:1.2rem;flex-wrap:wrap;margin-top:.6rem}
.ar-stat span {font-size:.78rem;color:var(--text-dim)}
.ar-stat i {color:var(--accent);margin-right:.3rem}
.ar-note {background:var(--grad-soft);border:1px solid var(--line);border-radius:18px;padding:1.6rem}
.ar-note h3 {font-size:1.05rem;font-weight:700;color:var(--text)}
.ar-note p {color:var(--text-dim);font-size:.9rem;line-height:1.85;margin:0}
.ar-list {list-style:none;padding:0;margin:0}
.ar-list li {display:flex;gap:.75rem;color:var(--text-dim);font-size:.9rem;line-height:1.7;padding:.55rem 0;border-bottom:1px solid var(--line)}
.ar-list li:last-child {border-bottom:0}
.ar-list i {color:var(--primary);margin-top:.3rem}

/* --- 子页面追加 --- */
/* 本页专属：少量补充样式，配色沿用站点变量 */
  .gd-nav {
    background: rgba(15,23,42,.86);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(14px);
  }
.gd-nav .nav-link:hover,
  .gd-nav .nav-link:focus { color: var(--text); background: rgba(56,189,248,.1); }
.gd-nav .navbar-toggler {
    border: 1px solid var(--line);
    color: var(--text);
    padding: .35rem .6rem;
    border-radius: 10px;
  }
.gd-nav .navbar-toggler:focus { box-shadow: none; }
.about-lead {
    font-size: 1.06rem;
    line-height: 1.9;
    color: var(--text-dim);
  }
.about-lead strong { color: var(--text); font-weight: 600; }
.gd-card.about-card { padding: 1.6rem 1.5rem; height: 100%; }
.about-card h3 {
    font-size: 1.06rem;
    font-weight: 700;
    margin: 0 0 .6rem;
    color: var(--text);
    letter-spacing: .01em;
  }
.about-card p {
    margin: 0;
    font-size: .93rem;
    line-height: 1.85;
    color: var(--text-dim);
  }
.about-card .gd-ico { margin-bottom: .9rem; }
.about-num {
    font-family: 'Inter', monospace;
    font-size: 1.9rem;
    font-weight: 800;
    background: var(--grad-main);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
    letter-spacing: -.02em;
  }
.about-stat-label {
    font-size: .8rem;
    color: var(--text-dim);
    margin-top: .45rem;
    letter-spacing: .04em;
  }
.about-stat {
    padding: 1.2rem 1rem;
    border-radius: 14px;
    background: var(--grad-soft);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-inset);
    text-align: center;
    height: 100%;
  }
.about-timeline { list-style: none; margin: 0; padding: 0; }
.about-timeline li {
    position: relative;
    padding: 0 0 1.7rem 2rem;
    border-left: 1px solid var(--line);
    margin-left: .45rem;
  }
.about-timeline li:last-child { padding-bottom: 0; border-left-color: transparent; }
.about-timeline li::before {
    content: '';
    position: absolute;
    left: -6px;
    top: .35rem;
    width: 11px; height: 11px;
    border-radius: 50%;
    background: var(--grad-main);
    box-shadow: 0 0 0 4px rgba(56,189,248,.14);
  }
.about-timeline .tl-time {
    font-family: 'Inter', monospace;
    font-size: .78rem;
    letter-spacing: .08em;
    color: var(--primary);
    text-transform: uppercase;
    display: block;
    margin-bottom: .3rem;
  }
.about-timeline .tl-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: .35rem;
  }
.about-timeline p {
    margin: 0;
    font-size: .92rem;
    line-height: 1.8;
    color: var(--text-dim);
  }
.about-note {
    border-left: 3px solid var(--primary);
    background: var(--grad-soft);
    border-radius: 0 12px 12px 0;
    padding: 1.1rem 1.3rem;
    font-size: .94rem;
    line-height: 1.85;
    color: var(--text-dim);
  }
.about-note strong { color: var(--text); }
.about-link-list { list-style: none; margin: 0; padding: 0; }
.about-link-list li + li { border-top: 1px dashed var(--line); }
.about-link-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: .85rem .2rem;
    color: var(--text);
    text-decoration: none;
    font-size: .95rem;
    transition: color .2s, padding-left .2s;
  }
.about-link-list a:hover { color: var(--primary); padding-left: .5rem; }
.about-link-list a i { color: var(--text-dim); font-size: .8rem; }
.about-link-list a:hover i { color: var(--primary); }
.gd-footer .foot-title {
    font-size: .8rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 1rem;
  }
.gd-footer .foot-bottom {
    margin-top: 2.2rem;
    padding-top: 1.4rem;
    border-top: 1px solid var(--line);
    font-size: .85rem;
    color: var(--text-dim);
  }

/* --- 子页面追加 --- */
.dc-hero {padding:120px 0 56px;position:relative;overflow:hidden}
.dc-hero::before {content:"";position:absolute;inset:0;background:var(--grad-soft);opacity:.55;pointer-events:none}
.dc-hero-inner {position:relative;max-width:860px}
.dc-hero h1 {font-size:clamp(1.7rem,4vw,2.7rem);font-weight:800;line-height:1.25;margin:18px 0 14px}
.dc-hero h1 em {font-style:normal;background:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent}
.dc-hero p {color:var(--text-dim);font-size:1.02rem;line-height:1.85;margin:0}
.dc-updated {display:inline-flex;align-items:center;gap:8px;margin-top:22px;font-size:.8rem;color:var(--text-dim);border:1px solid var(--line);border-radius:999px;padding:6px 14px}
.dc-updated i {color:var(--primary)}
.dc-sec {padding:26px 0}
.dc-sec h2 {font-size:clamp(1.15rem,2.4vw,1.5rem);font-weight:700;margin:0 0 14px;display:flex;align-items:center;gap:10px;line-height:1.4}
.dc-sec h2 .num {flex:0 0 auto;width:30px;height:30px;border-radius:9px;background:var(--grad-main);color:#0b1220;font-size:.85rem;font-weight:800;display:inline-flex;align-items:center;justify-content:center}
.dc-card {background:var(--bg-card);border:1px solid var(--line);border-radius:16px;padding:26px 26px;box-shadow:var(--shadow-md)}
.dc-card p {color:var(--text-dim);line-height:1.9;margin:0 0 12px;font-size:.95rem}
.dc-card p:last-child {margin-bottom:0}
.dc-card strong {color:var(--text)}
.dc-list {list-style:none;padding:0;margin:0}
.dc-list li {position:relative;padding-left:24px;color:var(--text-dim);line-height:1.88;font-size:.95rem;margin-bottom:10px}
.dc-list li:last-child {margin-bottom:0}
.dc-list li::before {content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;font-size:.7rem;color:var(--primary);position:absolute;left:0;top:7px}
.dc-note {background:rgba(56,189,248,.08);border:1px solid rgba(56,189,248,.28);border-radius:14px;padding:18px 20px;color:var(--text);font-size:.92rem;line-height:1.85}
.dc-note i {color:var(--primary);margin-right:8px}
.dc-faq {border:1px solid var(--line);border-radius:14px;background:var(--bg-soft);padding:20px 22px;margin-bottom:14px}
.dc-faq h3 {font-size:.98rem;font-weight:700;color:var(--text);margin:0 0 8px}
.dc-faq p {margin:0;color:var(--text-dim);font-size:.92rem;line-height:1.85}
.dc-toc {background:var(--bg-soft);border:1px solid var(--line);border-radius:16px;padding:22px 24px}
.dc-toc h3 {font-size:.95rem;font-weight:700;margin:0 0 14px;color:var(--text)}
.dc-toc a {display:block;color:var(--text-dim);text-decoration:none;font-size:.9rem;padding:6px 0;border-bottom:1px dashed var(--line);transition:color .2s}
.dc-toc a:last-child {border-bottom:none}
.dc-toc a:hover {color:var(--primary)}
.dc-toc a i {font-size:.65rem;margin-right:8px;color:var(--accent)}
.dc-hero {padding:96px 0 40px}
.dc-card {padding:20px 18px}
.dc-sec {padding:18px 0}

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-header { background:transparent !important; }