:root{
  --main:#38bdf8;
  --accent:#a78bfa;
  --bg:#0f172a;
  --text:#e2e8f0;
  --bg-soft:#16213b;
  --bg-card:#1b2744;
  --line:rgba(148,163,184,.16);
  --muted:#94a3b8;
  --radius-lg:24px;
  --radius-md:16px;
  --shadow-soft:0 18px 48px -18px rgba(2,8,23,.85);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  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;
  position:relative;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}
h1,h2,h3,h4,h5{font-weight:800;letter-spacing:-.02em;line-height:1.2;margin:0}
a{text-decoration:none}
p{margin:0}
.mono{font-family:'SFMono-Regular',Consolas,'Liberation Mono',Menlo,monospace;letter-spacing:-.01em}

/* ===== Nav ===== */
.site-nav{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(15,23,42,.55);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .35s ease,border-color .35s ease,box-shadow .35s ease;
}
.site-nav.scrolled{
  background:rgba(15,23,42,.92);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px -20px rgba(0,0,0,.9);
}
.nav-inner{
  max-width:1180px;
  margin:0 auto;
  padding:14px 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-weight:900;
  font-size:1.22rem;
  color:var(--text);
  letter-spacing:-.02em;
}
.brand i{color:var(--main);font-size:1.1rem}
.brand:hover{color:var(--text)}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  list-style:none;
  margin:0;
  padding:0;
}
.nav-links a{
  display:inline-block;
  padding:8px 14px;
  border-radius:999px;
  color:var(--muted);
  font-size:.93rem;
  font-weight:500;
  transition:color .25s,background .25s;
}
.nav-links a:hover,.nav-links a.active{
  color:var(--text);
  background:rgba(56,189,248,.12);
}
.nav-toggle{
  display:none;
  background:transparent;
  border:1px solid var(--line);
  border-radius:12px;
  color:var(--text);
  width:42px;height:42px;
  align-items:center;
  justify-content:center;
  font-size:1.05rem;
}
@media(max-width:860px){
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:absolute;
    top:100%;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:10px 16px 18px;
    background:rgba(15,23,42,.98);
    border-bottom:1px solid var(--line);
    display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:11px 14px;border-radius:12px}
}

/* ===== Buttons ===== */
.btn-glow{
  position:relative;
  overflow:hidden;
  border:none;
  border-radius:999px;
  padding:14px 30px;
  font-weight:700;
  font-size:.98rem;
  color:#04121f;
  background:linear-gradient(100deg,var(--main),var(--accent),var(--main));
  background-size:220% 100%;
  transition:background-position .6s ease,transform .25s ease,box-shadow .3s ease;
  box-shadow:0 14px 34px -16px rgba(56,189,248,.85);
  display:inline-flex;
  align-items:center;
  gap:9px;
}
.btn-glow:hover{
  background-position:100% 0;
  transform:translateY(-2px);
  color:#04121f;
  box-shadow:0 20px 42px -16px rgba(167,139,250,.85);
}
.btn-glow::after{
  content:"";
  position:absolute;
  top:0;left:-120%;
  width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-20deg);
  transition:left .65s ease;
}
.btn-glow:hover::after{left:130%}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:13px 28px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--text);
  font-weight:600;
  font-size:.97rem;
  background:rgba(255,255,255,.02);
  transition:border-color .25s,background .25s,transform .25s;
}
.btn-ghost:hover{border-color:var(--main);background:rgba(56,189,248,.08);color:var(--text);transform:translateY(-2px)}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:88px 20px 96px;
  overflow:hidden;
  z-index:1;
}
.hero-grid{
  max-width:1180px;
  margin:0 auto;
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:48px;
  align-items:center;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 16px;
  border-radius:999px;
  border:1px solid rgba(56,189,248,.32);
  background:rgba(56,189,248,.07);
  color:var(--main);
  font-size:.82rem;
  font-weight:600;
  letter-spacing:.04em;
  margin-bottom:22px;
}
.hero h1{
  font-size:clamp(2.3rem,5.4vw,4.1rem);
  font-weight:900;
  letter-spacing:-.035em;
  margin-bottom:20px;
}
.grad-text{
  background:linear-gradient(105deg,var(--main) 0%,var(--accent) 55%,var(--main) 100%);
  background-size:200% auto;
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  color:transparent;
  animation:shine 7s linear infinite;
}
@keyframes shine{to{background-position:200% center}}
.hero-lead{
  color:var(--muted);
  font-size:1.06rem;
  max-width:520px;
  margin-bottom:34px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:38px;
}
.hero-stats .stat-num{
  font-size:1.85rem;
  font-weight:800;
  color:var(--main);
}
.hero-stats .stat-label{
  font-size:.82rem;
  color:var(--muted);
  letter-spacing:.05em;
}
.hero-visual{
  position:relative;
  min-height:380px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.hero-panel{
  position:relative;
  width:100%;
  max-width:420px;
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(56,189,248,.14),rgba(167,139,250,.1));
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
  padding:34px 30px;
  overflow:hidden;
}
.hero-panel .panel-row{
  display:flex;
  align-items:center;
  gap:14px;
  padding:14px 0;
  border-bottom:1px dashed rgba(148,163,184,.16);
}
.hero-panel .panel-row:last-child{border-bottom:none}
.panel-icon{
  flex:0 0 42px;
  height:42px;
  border-radius:13px;
  border:1px solid rgba(56,189,248,.35);
  display:flex;align-items:center;justify-content:center;
  color:var(--main);
  font-size:1rem;
  background:rgba(56,189,248,.08);
}
.panel-icon.violet{color:var(--accent);border-color:rgba(167,139,250,.35);background:rgba(167,139,250,.08)}
.panel-row .pr-t{font-weight:700;font-size:.95rem}
.panel-row .pr-s{font-size:.79rem;color:var(--muted)}
.float-a,.float-b,.float-c{
  position:absolute;
  border-radius:50%;
  filter:blur(2px);
  animation:floaty 8s ease-in-out infinite;
  pointer-events:none;
}
.float-a{width:64px;height:64px;border:1px solid rgba(56,189,248,.4);top:-6px;right:14px}
.float-b{width:32px;height:32px;background:rgba(167,139,250,.35);bottom:36px;left:-14px;animation-delay:1.4s}
.float-c{width:14px;height:14px;background:var(--main);top:46%;right:-22px;animation-delay:2.6s;opacity:.7}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-18px)}}
@media(max-width:940px){
  .hero-grid{grid-template-columns:1fr;gap:56px}
  .hero{padding:60px 20px 72px}
  .hero-visual{min-height:auto}
}

/* ===== Section base ===== */
.section{padding:84px 20px;position:relative;z-index:1}
.container-w{max-width:1180px;margin:0 auto}
.sec-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.78rem;font-weight:700;letter-spacing:.14em;
  color:var(--accent);text-transform:uppercase;margin-bottom:16px;
}
.sec-label::before{content:"";width:26px;height:2px;background:var(--accent);border-radius:2px}
.sec-title{
  font-size:clamp(1.7rem,3.4vw,2.6rem);
  margin-bottom:18px;
}
.sec-desc{color:var(--muted);max-width:660px;font-size:1rem;margin-bottom:48px}

/* ===== Split intro (双色块) ===== */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.split-left{
  background:linear-gradient(150deg,#16213b,#101a2f);
  padding:52px 46px;
}
.split-right{
  background:linear-gradient(150deg,rgba(56,189,248,.1),rgba(167,139,250,.08)),#131e36;
  padding:52px 46px;
  border-left:1px solid var(--line);
}
.split h3{font-size:1.35rem;margin-bottom:20px}
.split p{color:var(--muted);font-size:.98rem;margin-bottom:16px}
.split p:last-child{margin-bottom:0}
.num-list{
  list-style:none;
  counter-reset:step;
  margin:0;padding:0;
}
.num-list li{
  counter-increment:step;
  position:relative;
  padding-left:52px;
  margin-bottom:24px;
  font-size:.96rem;
  color:var(--muted);
}
.num-list li:last-child{margin-bottom:0}
.num-list li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;
  left:0;top:1px;
  width:36px;height:36px;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-family:Consolas,monospace;
  font-size:.82rem;
  font-weight:700;
  color:var(--main);
  border:1px solid rgba(56,189,248,.35);
  background:rgba(56,189,248,.07);
}
.num-list li strong{color:var(--text);display:block;margin-bottom:3px;font-weight:700;font-size:.98rem}
@media(max-width:860px){
  .split{grid-template-columns:1fr}
  .split-left,.split-right{padding:38px 28px}
  .split-right{border-left:none;border-top:1px solid var(--line)}
}

/* ===== Compare table ===== */
.table-wrap{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  overflow:hidden;
  background:var(--bg-card);
  box-shadow:var(--shadow-soft);
}
table.cmp{width:100%;border-collapse:collapse;min-width:640px}
.cmp thead th{
  background:linear-gradient(90deg,rgba(56,189,248,.14),rgba(167,139,250,.1));
  color:var(--text);
  font-size:.84rem;
  font-weight:700;
  letter-spacing:.06em;
  padding:18px 22px;
  text-align:left;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.cmp tbody td{
  padding:18px 22px;
  font-size:.94rem;
  color:var(--muted);
  border-bottom:1px solid rgba(148,163,184,.09);
  vertical-align:top;
}
.cmp tbody tr:last-child td{border-bottom:none}
.cmp tbody tr:hover td{background:rgba(56,189,248,.04)}
.cmp td:first-child{color:var(--text);font-weight:700}
.cmp .tag{
  display:inline-block;
  padding:3px 11px;
  border-radius:999px;
  font-size:.76rem;
  font-weight:600;
  border:1px solid rgba(56,189,248,.35);
  color:var(--main);
  background:rgba(56,189,248,.08);
  white-space:nowrap;
}
.cmp .tag.v{border-color:rgba(167,139,250,.38);color:var(--accent);background:rgba(167,139,250,.08)}
.cmp .num{font-family:Consolas,monospace;color:var(--main);font-weight:700}
.scroll-x{overflow-x:auto}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  background:var(--bg-card);
  overflow:hidden;
  transition:border-color .3s,box-shadow .3s;
}
.faq-item[open]{border-color:rgba(56,189,248,.4);box-shadow:0 14px 36px -22px rgba(56,189,248,.6)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 24px;
  font-weight:700;
  font-size:1rem;
  color:var(--text);
  display:flex;
  align-items:center;
  gap:14px;
  transition:color .25s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:.75rem;
  color:var(--main);
  margin-left:auto;
  transition:transform .3s;
}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item summary .q-i{
  flex:0 0 30px;height:30px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(167,139,250,.35);
  background:rgba(167,139,250,.08);
  color:var(--accent);
  font-size:.8rem;font-weight:700;
}
.faq-body{padding:0 24px 22px 68px;color:var(--muted);font-size:.95rem}
@media(max-width:600px){
  .faq-body{padding:0 20px 20px 20px}
}

/* ===== Features ===== */
.feat-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.feat-card{
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--bg-card);
  padding:34px 28px;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.feat-card:hover{
  transform:translateY(-6px);
  border-color:rgba(56,189,248,.4);
  box-shadow:0 26px 50px -28px rgba(56,189,248,.55);
}
.feat-ico{
  width:52px;height:52px;
  border-radius:15px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(56,189,248,.35);
  background:rgba(56,189,248,.08);
  color:var(--main);
  font-size:1.18rem;
  margin-bottom:22px;
}
.feat-card:nth-child(even) .feat-ico{
  border-color:rgba(167,139,250,.35);
  background:rgba(167,139,250,.08);
  color:var(--accent);
}
.feat-card h4{font-size:1.1rem;margin-bottom:12px}
.feat-card p{color:var(--muted);font-size:.92rem}
@media(max-width:900px){.feat-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.feat-grid{grid-template-columns:1fr}}

/* ===== CTA ===== */
.cta-band{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  padding:66px 46px;
  text-align:center;
  background:linear-gradient(135deg,rgba(56,189,248,.16),rgba(167,139,250,.14)),#131e36;
  border:1px solid rgba(56,189,248,.24);
  box-shadow:var(--shadow-soft);
  z-index:1;
}
.cta-band::before{
  content:"";
  position:absolute;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.28),transparent 70%);
  top:-140px;right:-90px;
  pointer-events:none;
}
.cta-band h2{font-size:clamp(1.6rem,3.4vw,2.4rem);margin-bottom:16px;position:relative}
.cta-band p{color:var(--muted);max-width:560px;margin:0 auto 32px;position:relative}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;position:relative}
@media(max-width:600px){.cta-band{padding:48px 24px}}

/* ===== Footer ===== */
.site-footer{
  border-top:1px solid var(--line);
  padding:60px 20px 30px;
  position:relative;
  z-index:1;
  background:rgba(10,16,30,.6);
}
.foot-grid{
  max-width:1180px;margin:0 auto;
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:42px;
  margin-bottom:44px;
}
.foot-brand{display:inline-flex;align-items:center;gap:9px;font-weight:900;font-size:1.15rem;color:var(--text);margin-bottom:16px}
.foot-brand i{color:var(--main)}
.foot-grid p{color:var(--muted);font-size:.9rem;max-width:340px}
.foot-col h5{font-size:.86rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:18px;font-weight:700}
.foot-col ul{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.foot-col a{color:#c7d2e0;font-size:.92rem;transition:color .25s}
.foot-col a:hover{color:var(--main)}
.friend-links{
  max-width:1180px;margin:0 auto 34px;
  padding:22px 26px;
  border-radius:var(--radius-md);
  border:1px dashed rgba(148,163,184,.22);
  background:rgba(255,255,255,.015);
}
.friend-links h6{
  font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent);margin:0 0 12px;font-weight:700;
}
.friend-links .fl-body{color:var(--muted);font-size:.9rem;word-break:break-all}
.copyright{
  max-width:1180px;margin:0 auto;
  padding-top:26px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  color:var(--muted);
  font-size:.85rem;
}
@media(max-width:820px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media(max-width:560px){
  .foot-grid{grid-template-columns:1fr}
  .section{padding:60px 20px}
}

/* ===== Reveal / lazyload ===== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.lazy-img{
  display:block;
  width:100%;
  border-radius:var(--radius-md);
  background:linear-gradient(110deg,#1b2744 8%,#243252 18%,#1b2744 33%);
  background-size:220% 100%;
  animation:placeholder 1.6s linear infinite;
  min-height:160px;
}
.lazy-img.loaded{animation:none;background:#1b2744}
@keyframes placeholder{to{background-position:-220% 0}}

/* --- 子页面追加 --- */
.about-hero {padding:72px 0 32px;}
.about-hero h1 {font-size:clamp(1.9rem,4vw,3rem);font-weight:800;line-height:1.25;letter-spacing:-.02em;margin:14px 0 18px;}
.about-hero p {color:var(--muted);max-width:760px;font-size:1.02rem;line-height:1.9;}
.info-card {background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-md);padding:26px 24px;height:100%;box-shadow:var(--shadow-soft);transition:.28s ease;}
.info-card:hover {transform:translateY(-4px);border-color:rgba(56,189,248,.45);}
.info-card .ic {width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:rgba(56,189,248,.12);color:var(--main);font-size:1.15rem;margin-bottom:16px;}
.info-card h3 {font-size:1.08rem;font-weight:700;margin-bottom:10px;color:var(--text);}
.info-card p {color:var(--muted);font-size:.93rem;line-height:1.85;margin:0;}
.prose p {color:var(--muted);line-height:1.95;font-size:.97rem;margin-bottom:16px;}
.prose strong {color:var(--main);font-weight:600;}
.soft-panel {background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px 30px;}
.stat-line {display:flex;flex-wrap:wrap;gap:28px;margin-top:22px;}
.stat-line .sl {min-width:120px;}
.stat-line .sl b {display:block;font-size:1.6rem;font-weight:800;background:linear-gradient(135deg,var(--main),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;}
.stat-line .sl span {color:var(--muted);font-size:.85rem;}
.cmp-table {width:100%;border-collapse:separate;border-spacing:0;font-size:.92rem;}
.cmp-table thead th {background:rgba(56,189,248,.1);color:var(--main);font-weight:600;text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);white-space:nowrap;}
.cmp-table thead th:first-child {border-radius:var(--radius-md) 0 0 0;}
.cmp-table thead th:last-child {border-radius:0 var(--radius-md) 0 0;}
.cmp-table tbody td {padding:14px 16px;border-bottom:1px solid var(--line);color:var(--muted);line-height:1.7;}
.cmp-table tbody td:first-child {color:var(--text);font-weight:600;}
.cmp-table tbody tr:hover td {background:rgba(148,163,184,.05);}
.cmp-wrap {overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--bg-card);}
.faq-item h3 {font-size:1rem;font-weight:700;margin-bottom:10px;color:var(--text);display:flex;gap:10px;align-items:flex-start;}
.faq-item h3 i {color:var(--accent);font-size:.9rem;margin-top:4px;}
.faq-item p {color:var(--muted);font-size:.92rem;line-height:1.85;margin:0;}
.step-row {display:flex;gap:18px;align-items:flex-start;padding:20px 0;border-bottom:1px dashed var(--line);}
.step-row:last-child {border-bottom:none;}
.step-num {flex:0 0 38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.95rem;color:#071426;background:linear-gradient(135deg,var(--main),var(--accent));}
.step-row h4 {font-size:1rem;font-weight:700;margin-bottom:6px;color:var(--text);}
.step-row p {color:var(--muted);font-size:.92rem;line-height:1.8;margin:0;}
.foot-links a {color:var(--muted);text-decoration:none;margin-right:18px;font-size:.88rem;transition:.2s;}
.foot-links a:hover {color:var(--main);}
.about-hero {padding:48px 0 20px;}
.soft-panel {padding:24px 20px;}
.stat-line {gap:20px;}

/* --- 子页面追加 --- */
/* ===== 本页专属少量样式,配色沿用站点变量 ===== */
  .guide-hero .hero-eyebrow { margin-bottom: 14px; }
.guide-hero h1 { font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.25; margin-bottom: 18px; }
.guide-hero .hero-lead { max-width: 720px; }
.guide-toc {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 12px;
    margin-top: 26px;
  }
.guide-toc a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    color: var(--text);
    text-decoration: none;
    font-size: .9rem;
    font-weight: 500;
    transition: border-color .2s, transform .2s, color .2s;
  }
.guide-toc a:hover { border-color: var(--main); color: var(--main); transform: translateY(-2px); }
.guide-toc i { color: var(--accent); }
/* 步骤流程 */
  .step-list { display: grid; gap: 16px; margin-top: 28px; }
.step-card {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 18px;
    padding: 22px 24px;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
  }
.step-card h3 { font-size: 1.05rem; margin: 0 0 6px; color: var(--text); }
.step-card p { margin: 0; color: var(--muted); font-size: .93rem; line-height: 1.75; }
.step-card .tagline { color: var(--main); font-size: .82rem; font-weight: 600; letter-spacing: .02em; }
/* 特色小卡 */
  .feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 28px; }
.feature-item {
    padding: 22px;
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
  }
.feature-item i { font-size: 1.35rem; color: var(--accent); margin-bottom: 12px; display: block; }
.feature-item h3 { font-size: 1rem; margin: 0 0 8px; color: var(--text); }
.feature-item p { margin: 0; font-size: .9rem; color: var(--muted); line-height: 1.7; }
/* 自定义对比表(不用 Bootstrap .table) */
  .compare-wrap { margin-top: 28px; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-md); }
.compare-table { width: 100%; border-collapse: collapse; font-size: .92rem; min-width: 560px; }
.compare-table th, .compare-table td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--line); }
.compare-table thead th { background: var(--bg-soft); color: var(--main); font-weight: 700; font-size: .85rem; letter-spacing: .03em; }
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table tbody td:first-child { color: var(--text); font-weight: 600; }
.compare-table tbody td { color: var(--muted); }
.compare-table tbody tr:hover { background: rgba(56,189,248,.05); }
.badge-soft {
    display: inline-block; padding: 3px 10px; border-radius: 999px;
    font-size: .76rem; font-weight: 600; color: var(--main);
    background: rgba(56,189,248,.12); border: 1px solid rgba(56,189,248,.28);
  }
/* FAQ 手风琴(自写) */
  .faq-list { margin-top: 28px; display: grid; gap: 12px; }
.faq-item summary i { color: var(--main); transition: transform .25s; font-size: .85rem; }
.faq-item[open] summary i { transform: rotate(180deg); }
.faq-item .faq-body { padding: 0 22px 20px; color: var(--muted); font-size: .92rem; line-height: 1.8; margin: 0; }
/* 提示条 */
  .note-bar {
    display: flex; gap: 14px; align-items: flex-start;
    margin-top: 26px; padding: 18px 22px;
    border-radius: var(--radius-md);
    background: rgba(167,139,250,.08);
    border: 1px solid rgba(167,139,250,.28);
  }
.note-bar i { color: var(--accent); margin-top: 3px; }
.note-bar p { margin: 0; color: var(--text); font-size: .9rem; line-height: 1.75; }
.note-bar a { color: var(--main); text-decoration: none; }
.note-bar a:hover { text-decoration: underline; }
.cta-box {
    margin-top: 34px; padding: 34px 28px; text-align: center;
    background: linear-gradient(135deg, rgba(56,189,248,.12), rgba(167,139,250,.12));
    border: 1px solid var(--line); border-radius: var(--radius-lg);
  }
.cta-box h2 { font-size: 1.35rem; margin: 0 0 10px; color: var(--text); }
.cta-box p { color: var(--muted); margin: 0 auto 20px; max-width: 560px; font-size: .95rem; line-height: 1.7; }
.step-card { grid-template-columns: 1fr; gap: 12px; padding: 20px; }

/* --- 子页面追加 --- */
/* 本页专属少量样式，沿用站点变量 */
    .rank-hero {padding:70px 0 40px;}
.rank-hero h1 {font-size:clamp(1.9rem,4vw,3rem);font-weight:800;line-height:1.2;margin:0 0 14px;}
.rank-hero p {color:var(--muted);max-width:760px;font-size:1.02rem;line-height:1.85;}
.rank-tag {display:inline-block;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--main);border:1px solid var(--line);border-radius:999px;padding:6px 16px;margin-bottom:18px;}
.rank-list {display:flex;flex-direction:column;gap:18px;}
.rank-item {
      display:grid;grid-template-columns:88px 1fr auto;gap:22px;align-items:center;
      background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-md);
      padding:22px 24px;box-shadow:var(--shadow-soft);transition:transform .25s ease,border-color .25s ease;
    }
.rank-item:hover {transform:translateY(-3px);border-color:rgba(56,189,248,.45);}
.rank-no {font-size:2.1rem;font-weight:900;line-height:1;color:rgba(148,163,184,.35);font-family:'Inter',sans-serif;}
.rank-item.top .rank-no {background:linear-gradient(135deg,var(--main),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;}
.rank-body h3 {margin:0 0 6px;font-size:1.18rem;font-weight:700;}
.rank-body .rank-meta {color:var(--muted);font-size:.86rem;margin-bottom:8px;}
.rank-body p {margin:0;color:var(--text);opacity:.82;font-size:.93rem;line-height:1.7;}
.rank-side {text-align:right;min-width:120px;}
.rank-score {font-size:1.5rem;font-weight:800;color:var(--main);line-height:1;}
.rank-score small {font-size:.72rem;color:var(--muted);font-weight:500;display:block;margin-top:4px;}
.rank-badge {display:inline-block;margin-top:10px;font-size:.74rem;padding:4px 12px;border-radius:999px;background:rgba(167,139,250,.14);color:var(--accent);border:1px solid rgba(167,139,250,.28);}
.stat-strip {display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:34px;}
.stat-cell {background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-md);padding:20px;text-align:center;}
.stat-cell b {display:block;font-size:1.5rem;color:var(--main);font-weight:800;}
.stat-cell span {font-size:.82rem;color:var(--muted);}
.criteria-grid {display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.criteria-card {background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-md);padding:24px;height:100%;}
.criteria-card i {color:var(--main);font-size:1.3rem;margin-bottom:12px;display:block;}
.criteria-card h3 {font-size:1.02rem;font-weight:700;margin:0 0 8px;}
.criteria-card p {margin:0;color:var(--muted);font-size:.9rem;line-height:1.75;}
.cta-panel {background:linear-gradient(135deg,rgba(56,189,248,.12),rgba(167,139,250,.12));border:1px solid var(--line);border-radius:var(--radius-lg);padding:44px 36px;text-align:center;}
.cta-panel h2 {font-size:clamp(1.4rem,2.6vw,2rem);font-weight:800;margin:0 0 12px;}
.cta-panel p {color:var(--muted);max-width:620px;margin:0 auto 24px;line-height:1.85;}
.rank-item {grid-template-columns:56px 1fr;gap:14px;padding:18px;}
.rank-side {grid-column:2;text-align:left;display:flex;align-items:center;gap:14px;min-width:0;}
.rank-badge {margin-top:0;}
.stat-strip {grid-template-columns:repeat(2,1fr);}
.criteria-grid {grid-template-columns:1fr;}

/* --- 子页面追加 --- */
.disc-hero { padding: 72px 0 40px; }
.disc-hero h1 { font-size: clamp(1.9rem, 4vw, 3rem); font-weight: 800; line-height: 1.25; margin: 14px 0 16px; }
.disc-hero .hero-lead { max-width: 760px; }
.disc-updated { display: inline-flex; align-items: center; gap: 8px; font-size: .85rem; color: var(--muted); background: var(--bg-soft); border: 1px solid var(--line); border-radius: 999px; padding: 7px 16px; }
.disc-layout { display: grid; grid-template-columns: 240px 1fr; gap: 40px; align-items: start; }
.disc-toc { position: sticky; top: 96px; background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 22px 20px; }
.disc-toc h3 { font-size: .95rem; font-weight: 700; color: var(--text); margin: 0 0 14px; letter-spacing: .02em; }
.disc-toc ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.disc-toc a { display: block; font-size: .88rem; color: var(--muted); text-decoration: none; padding: 7px 10px; border-radius: 9px; transition: .2s; border-left: 2px solid transparent; }
.disc-toc a:hover { color: var(--main); background: rgba(56,189,248,.08); border-left-color: var(--main); }
.disc-block { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px 32px; margin-bottom: 22px; box-shadow: var(--shadow-soft); }
.disc-block h2 { font-size: 1.28rem; font-weight: 700; margin: 0 0 16px; display: flex; align-items: center; gap: 10px; }
.disc-block h2 i { color: var(--main); font-size: 1.05rem; }
.disc-block h3 { font-size: 1.02rem; font-weight: 600; margin: 22px 0 10px; color: var(--text); }
.disc-block h3:first-of-type { margin-top: 4px; }
.disc-block p { color: var(--muted); line-height: 1.85; font-size: .94rem; margin: 0 0 12px; }
.disc-block ul { margin: 0 0 12px; padding-left: 0; list-style: none; display: flex; flex-direction: column; gap: 9px; }
.disc-block ul li { position: relative; padding-left: 22px; color: var(--muted); line-height: 1.8; font-size: .94rem; }
.disc-block ul li::before { content: "\f0da"; font-family: "Font Awesome 6 Free"; font-weight: 900; color: var(--accent); position: absolute; left: 0; top: 1px; font-size: .8rem; }
.disc-block a { color: var(--main); text-decoration: none; }
.disc-block a:hover { text-decoration: underline; }
.disc-note { border-left: 3px solid var(--accent); background: rgba(167,139,250,.08); border-radius: 0 var(--radius-md) var(--radius-md) 0; padding: 16px 20px; margin: 16px 0 6px; }
.disc-note p { margin: 0; color: var(--text); font-size: .9rem; }
.disc-contact-card { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 8px; }
.disc-contact-item { flex: 1 1 200px; background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 18px 20px; }
.disc-contact-item .ci-label { font-size: .78rem; color: var(--muted); letter-spacing: .06em; text-transform: uppercase; margin-bottom: 8px; }
.disc-contact-item .ci-val { font-size: .95rem; color: var(--text); font-weight: 600; word-break: break-all; }
.disc-contact-item i { color: var(--main); margin-right: 6px; }
.disc-layout { grid-template-columns: 1fr; gap: 24px; }
.disc-toc { position: static; }
.disc-toc ul { flex-direction: row; flex-wrap: wrap; }
.disc-toc a { border-left: none; border: 1px solid var(--line); }
.disc-block { padding: 24px 20px; }