:root{
  --main:#38bdf8;
  --accent:#a78bfa;
  --bg:#0f172a;
  --text:#e2e8f0;
  --card:#16213c;
  --card-2:#1b2848;
  --line:rgba(148,163,184,.16);
  --muted:#94a3b8;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --shadow:0 18px 50px -18px rgba(2,10,30,.85);
  --shadow-soft:0 10px 34px -14px rgba(56,189,248,.25);
  --font:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-weight:400;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{font-weight:800;letter-spacing:-.02em;line-height:1.25;margin:0}
p{margin:0}
a{text-decoration:none;color:inherit;transition:color .25s ease}
img{max-width:100%;display:block}
::selection{background:rgba(56,189,248,.32);color:#fff}
.container-x{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}

/* 光斑装饰 */
.glow{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;z-index:0;opacity:.55}
.glow-a{width:420px;height:420px;background:radial-gradient(circle,#38bdf8,transparent 70%);top:-120px;left:-100px}
.glow-b{width:480px;height:480px;background:radial-gradient(circle,#a78bfa,transparent 70%);bottom:-180px;right:-140px;opacity:.45}

/* 导航 */
#siteNav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:16px 0;
  background:rgba(15,23,42,0);
  backdrop-filter:blur(0px);
  transition:background .35s ease,padding .35s ease,box-shadow .35s ease,backdrop-filter .35s ease;
  border-bottom:1px solid transparent;
}
#siteNav.scrolled{
  padding:10px 0;
  background:rgba(15,23,42,.82);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 12px 30px -20px rgba(0,0,0,.9);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:900;font-size:1.28rem;letter-spacing:-.02em;color:#fff;
  white-space:nowrap;
}
.brand i{
  font-size:1.05rem;
  background:linear-gradient(135deg,var(--main),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.brand:hover{color:#fff}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.nav-links a{
  display:block;padding:9px 15px;border-radius:999px;
  font-size:.94rem;font-weight:500;color:var(--muted);
  transition:.25s ease;
}
.nav-links a:hover{color:#fff;background:rgba(56,189,248,.12)}
.nav-links a.active{color:var(--main);background:rgba(56,189,248,.1)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  background:rgba(148,163,184,.12);border:1px solid var(--line);
  color:var(--text);font-size:1.05rem;align-items:center;justify-content:center;cursor:pointer;
}
@media(max-width:900px){
  .nav-toggle{display:flex}
  .nav-links{
    position:absolute;top:calc(100% + 12px);left:16px;right:16px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(22,33,60,.97);
    border:1px solid var(--line);border-radius:var(--r-md);
    padding:12px;box-shadow:var(--shadow);
    backdrop-filter:blur(18px);
    display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 16px;border-radius:12px;font-size:1rem}
}

/* HERO 双色分屏 */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  padding:140px 0 80px;overflow:hidden;
}
.hero-split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative;z-index:2}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:999px;
  background:rgba(56,189,248,.1);
  border:1px solid rgba(56,189,248,.28);
  font-size:.82rem;font-weight:600;color:var(--main);letter-spacing:.04em;
  margin-bottom:26px;
}
.hero-eyebrow span.dot{width:7px;height:7px;border-radius:50%;background:var(--main);box-shadow:0 0 12px var(--main)}
.hero h1{
  font-size:clamp(2.3rem,5.4vw,4.1rem);
  font-weight:900;letter-spacing:-.035em;line-height:1.1;margin-bottom:24px;
}
.grad-text{
  background:linear-gradient(100deg,#38bdf8 0%,#a78bfa 55%,#38bdf8 100%);
  background-size:220% auto;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:shine 7s linear infinite;
}
@keyframes shine{to{background-position:220% center}}
.hero-desc{font-size:1.08rem;color:var(--muted);max-width:520px;margin-bottom:34px}
.hero-desc strong{color:var(--text);font-weight:600}
.btn-main{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 30px;border-radius:999px;
  background:linear-gradient(120deg,var(--main),var(--accent));
  color:#08111f;font-weight:800;font-size:1rem;border:none;
  box-shadow:0 16px 38px -14px rgba(56,189,248,.6);
  transition:transform .28s cubic-bezier(.2,.8,.3,1),box-shadow .28s ease;
}
.btn-main:hover{transform:translateY(-3px);box-shadow:0 22px 46px -14px rgba(167,139,250,.66);color:#08111f}
.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 28px;border-radius:999px;
  background:rgba(148,163,184,.09);
  border:1px solid var(--line);
  color:var(--text);font-weight:600;font-size:1rem;
  transition:.28s ease;
}
.btn-ghost:hover{background:rgba(148,163,184,.16);color:#fff;transform:translateY(-3px)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* Hero 右侧视觉面板 */
.hero-panel{
  position:relative;
  background:linear-gradient(160deg,rgba(56,189,248,.12),rgba(167,139,250,.08));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--shadow);
  backdrop-filter:blur(8px);
}
.hero-panel::before{
  content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;
  background:linear-gradient(140deg,rgba(56,189,248,.55),transparent 45%,rgba(167,139,250,.5));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.panel-title{font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:18px}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.stat-box{
  background:rgba(15,23,42,.6);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:18px 16px;
}
.stat-num{
  font-size:2.05rem;font-weight:900;letter-spacing:-.04em;line-height:1;
  background:linear-gradient(120deg,var(--main),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  display:block;margin-bottom:7px;
}
.stat-txt{font-size:.83rem;color:var(--muted);font-weight:500}
.float-badge{
  position:absolute;padding:11px 18px;border-radius:16px;
  background:rgba(22,33,60,.92);border:1px solid var(--line);
  font-size:.84rem;font-weight:600;color:var(--text);
  box-shadow:0 18px 34px -18px rgba(0,0,0,.9);
  display:flex;align-items:center;gap:9px;
  animation:floatY 5.5s ease-in-out infinite;
}
.float-badge i{color:var(--main)}
.fb-1{top:-22px;right:14px;animation-delay:.2s}
.fb-2{bottom:-24px;left:-18px;animation-delay:1.4s}
.fb-2 i{color:var(--accent)}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-11px)}}
@media(max-width:900px){
  .hero{padding:120px 0 70px;min-height:auto}
  .hero-split{grid-template-columns:1fr;gap:44px}
  .fb-2{left:0}
}

/* 通用区块头 */
.section{padding:96px 0;position:relative;overflow:hidden}
.sec-head{max-width:680px;margin-bottom:52px}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.78rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:16px;
}
.sec-tag::before{content:"";width:24px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--main),var(--accent))}
.sec-head h2{font-size:clamp(1.75rem,3.6vw,2.75rem);margin-bottom:18px}
.sec-head p{color:var(--muted);font-size:1.02rem}

/* 使用说明：手风琴 */
.acc-wrap{max-width:880px;margin:0 auto}
.acc-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .3s ease,box-shadow .3s ease,background .3s ease;
}
.acc-item:hover{border-color:rgba(56,189,248,.32)}
.acc-item.active{
  border-color:rgba(56,189,248,.42);
  box-shadow:var(--shadow-soft);
  background:var(--card-2);
}
.acc-head{
  width:100%;display:flex;align-items:center;gap:18px;
  padding:22px 26px;background:none;border:none;text-align:left;
  color:var(--text);cursor:pointer;font-family:inherit;
}
.acc-num{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:.9rem;font-weight:800;
  background:rgba(56,189,248,.12);color:var(--main);
  border:1px solid rgba(56,189,248,.22);
  transition:.3s ease;
}
.acc-item.active .acc-num{background:linear-gradient(135deg,var(--main),var(--accent));color:#08111f;border-color:transparent}
.acc-head h3{font-size:1.06rem;font-weight:700;flex:1;margin:0}
.acc-icon{color:var(--muted);font-size:.9rem;transition:transform .35s ease}
.acc-item.active .acc-icon{transform:rotate(180deg);color:var(--main)}
.acc-body{max-height:0;overflow:hidden;transition:max-height .42s cubic-bezier(.3,.9,.3,1)}
.acc-body-inner{padding:0 26px 26px 82px;color:var(--muted);font-size:.97rem}
.acc-body-inner strong{color:var(--text);font-weight:600}
@media(max-width:600px){
  .acc-head{padding:18px 18px;gap:13px}
  .acc-body-inner{padding:0 18px 22px 18px}
  .acc-num{width:32px;height:32px;border-radius:10px;font-size:.82rem}
}

/* 特色网格 */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat-card{
  position:relative;
  background:linear-gradient(165deg,var(--card),rgba(22,33,60,.55));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:32px 28px;
  overflow:hidden;
  transition:transform .35s cubic-bezier(.2,.8,.3,1),border-color .35s ease,box-shadow .35s ease;
}
.feat-card::after{
  content:"";position:absolute;top:-60px;right:-60px;width:150px;height:150px;border-radius:50%;
  background:radial-gradient(circle,rgba(167,139,250,.22),transparent 70%);
  opacity:0;transition:opacity .4s ease;
}
.feat-card:hover{transform:translateY(-7px);border-color:rgba(167,139,250,.4);box-shadow:var(--shadow)}
.feat-card:hover::after{opacity:1}
.feat-icon{
  width:56px;height:56px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;margin-bottom:22px;
  background:linear-gradient(140deg,rgba(56,189,248,.18),rgba(167,139,250,.18));
  color:var(--main);
  border:1px solid rgba(56,189,248,.2);
}
.feat-card:nth-child(2) .feat-icon{color:var(--accent);border-color:rgba(167,139,250,.22)}
.feat-card h3{font-size:1.16rem;margin-bottom:12px}
.feat-card p{color:var(--muted);font-size:.95rem}
.feat-list{list-style:none;padding:0;margin:16px 0 0}
.feat-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:.9rem;color:var(--muted);margin-bottom:9px;
}
.feat-list li i{color:var(--main);font-size:.78rem;margin-top:7px;flex:0 0 auto}
@media(max-width:940px){.feat-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.feat-grid{grid-template-columns:1fr}}

/* 长文区块 */
.longread{
  background:linear-gradient(170deg,rgba(22,33,60,.62),rgba(15,23,42,.2));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:clamp(28px,5vw,60px);
  position:relative;overflow:hidden;
}
.longread .glow-c{position:absolute;width:340px;height:340px;border-radius:50%;filter:blur(100px);background:radial-gradient(circle,rgba(56,189,248,.35),transparent 70%);top:-140px;right:-100px;opacity:.5}
.longread-content{position:relative;z-index:2;max-width:820px}
.longread h2{font-size:clamp(1.6rem,3.2vw,2.3rem);margin-bottom:22px}
.longread h3{font-size:1.18rem;margin:34px 0 12px;color:#fff}
.longread p{color:var(--muted);margin-bottom:16px;font-size:1rem}
.longread p strong{color:var(--text);font-weight:600}
.pull-quote{
  margin:30px 0;padding:22px 26px;
  border-left:3px solid var(--main);
  background:rgba(56,189,248,.07);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--text);font-style:normal;font-size:1.02rem;font-weight:500;
}
.big-nums{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:36px 0 8px}
.big-num-item{text-align:left}
.big-num-item b{
  display:block;font-size:clamp(1.9rem,4vw,2.6rem);font-weight:900;letter-spacing:-.04em;line-height:1;
  background:linear-gradient(120deg,var(--main),var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:6px;
}
.big-num-item span{font-size:.86rem;color:var(--muted)}
@media(max-width:600px){.big-nums{grid-template-columns:1fr;gap:14px}}

/* 海报/缩略卡（hover 播放按钮） */
.poster-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:38px}
.poster{
  position:relative;border-radius:var(--r-md);overflow:hidden;
  aspect-ratio:2/3;background:linear-gradient(150deg,#1b2848,#131e35);
  border:1px solid var(--line);
}
.poster img{width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .6s ease,transform .6s ease}
.poster img.loaded{opacity:1}
.poster:hover img{transform:scale(1.06)}
.poster .ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:rgba(148,163,184,.4);font-size:1.6rem}
.poster .overlay{
  position:absolute;inset:0;background:linear-gradient(to top,rgba(8,14,28,.9),rgba(8,14,28,.12) 55%,transparent);
  display:flex;align-items:center;justify-content:center;
  opacity:0;transition:opacity .35s ease;
}
.poster:hover .overlay{opacity:1}
.play-btn{
  width:58px;height:58px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--main),var(--accent));
  color:#08111f;font-size:1.15rem;
  transform:scale(.75);transition:transform .35s cubic-bezier(.2,.9,.3,1);
  box-shadow:0 10px 30px -8px rgba(56,189,248,.7);
}
.poster:hover .play-btn{transform:scale(1)}
.poster .cap{
  position:absolute;left:0;right:0;bottom:0;padding:12px 14px;
  font-size:.84rem;font-weight:600;color:#fff;
  transform:translateY(6px);transition:transform .35s ease;
}
.poster:hover .cap{transform:translateY(0)}
@media(max-width:760px){.poster-strip{grid-template-columns:repeat(2,1fr)}}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);margin-bottom:14px;overflow:hidden;
  transition:border-color .3s ease,box-shadow .3s ease;
}
.faq-item.active{border-color:rgba(167,139,250,.4);box-shadow:0 14px 36px -18px rgba(167,139,250,.45)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;justify-content:space-between;
  padding:22px 26px;background:none;border:none;color:var(--text);
  font-family:inherit;font-size:1.02rem;font-weight:700;text-align:left;cursor:pointer;
}
.faq-q i{color:var(--accent);flex:0 0 auto;transition:transform .35s ease}
.faq-item.active .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.3,.9,.3,1)}
.faq-a-inner{padding:0 26px 24px;color:var(--muted);font-size:.96rem}
@media(max-width:600px){.faq-q{padding:18px 18px;font-size:.96rem}.faq-a-inner{padding:0 18px 20px}}

/* CTA */
.cta-box{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  padding:clamp(38px,6vw,74px) clamp(24px,5vw,56px);
  text-align:center;
  background:linear-gradient(135deg,rgba(56,189,248,.16),rgba(167,139,250,.16));
  border:1px solid rgba(56,189,248,.24);
  box-shadow:var(--shadow);
}
.cta-box h2{font-size:clamp(1.7rem,4vw,2.7rem);margin-bottom:18px}
.cta-box p{color:var(--muted);max-width:600px;margin:0 auto 32px;font-size:1.02rem}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px}
.cta-box .glow-d{position:absolute;width:380px;height:380px;border-radius:50%;filter:blur(100px);background:radial-gradient(circle,rgba(167,139,250,.5),transparent 70%);top:-140px;left:-100px;opacity:.55;pointer-events:none}
.cta-box .glow-e{position:absolute;width:340px;height:340px;border-radius:50%;filter:blur(100px);background:radial-gradient(circle,rgba(56,189,248,.45),transparent 70%);bottom:-150px;right:-80px;opacity:.5;pointer-events:none}

/* 友链 */
.friend-links{padding:56px 0 20px;position:relative}
.fl-title{
  font-size:.86rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);margin-bottom:18px;display:flex;align-items:center;gap:10px;
}
.fl-title i{color:var(--accent)}
.fl-body{
  padding:20px 24px;border-radius:var(--r-md);
  border:1px dashed var(--line);
  background:rgba(22,33,60,.4);
  color:var(--muted);font-size:.92rem;
}
.fl-body a{color:var(--main);margin-right:14px;display:inline-block;line-height:2}
.fl-body a:hover{color:var(--accent);text-decoration:underline}

/* 页脚 */
footer{
  margin-top:40px;
  border-top:1px solid var(--line);
  padding:52px 0 34px;
  background:rgba(11,17,32,.6);
  position:relative;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-brand{font-size:1.16rem;font-weight:900;color:#fff;display:inline-flex;align-items:center;gap:9px;margin-bottom:14px}
.foot-brand i{background:linear-gradient(135deg,var(--main),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.foot-desc{color:var(--muted);font-size:.92rem;max-width:340px}
.foot-col h4{font-size:.86rem;letter-spacing:.1em;text-transform:uppercase;color:#fff;margin-bottom:16px;font-weight:700}
.foot-col ul{list-style:none;padding:0;margin:0}
.foot-col li{margin-bottom:10px}
.foot-col a{color:var(--muted);font-size:.93rem}
.foot-col a:hover{color:var(--main)}
.foot-bottom{
  border-top:1px solid var(--line);padding-top:24px;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  color:var(--muted);font-size:.86rem;
}
.foot-bottom .domain{color:var(--text);font-weight:600}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr;gap:30px}}

/* 渐显 */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.8,.3,1),transform .8s cubic-bezier(.2,.8,.3,1)}
.reveal.in{opacity:1;transform:none}

/* --- 子页面追加 --- */
.about-hero {padding:72px 0 8px;}
.about-hero h1 {font-size:clamp(1.9rem,4.4vw,3.1rem);line-height:1.18;font-weight:800;margin:14px 0 16px;}
.about-lead {color:var(--muted);font-size:1.02rem;line-height:1.85;max-width:760px;}
.sec {padding:54px 0;}
.sec-head .dot {width:10px;height:10px;border-radius:50%;background:var(--main);box-shadow:0 0 0 5px rgba(56,189,248,.14);flex:0 0 auto;}
.sec h2 {font-size:clamp(1.35rem,2.6vw,1.9rem);font-weight:800;margin:0;letter-spacing:.2px;}
.sec-sub {color:var(--muted);font-size:.95rem;line-height:1.8;margin:0 0 26px 22px;}
.panel {background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 24px;box-shadow:var(--shadow);height:100%;}
.panel h3 {font-size:1.08rem;font-weight:700;margin:0 0 10px;color:var(--text);}
.panel p {color:var(--muted);font-size:.94rem;line-height:1.85;margin:0;}
.panel .ico {width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.05rem;color:var(--main);background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.22);margin-bottom:14px;}
.panel.alt .ico {color:var(--accent);background:rgba(167,139,250,.12);border-color:rgba(167,139,250,.22);}
.timeline {position:relative;margin:0;padding:0 0 0 26px;list-style:none;}
.timeline::before {content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--main),var(--accent));opacity:.5;}
.timeline li {position:relative;padding:0 0 24px 4px;}
.timeline li::before {content:"";position:absolute;left:-26px;top:5px;width:12px;height:12px;border-radius:50%;background:var(--card-2);border:2px solid var(--main);}
.timeline li:last-child {padding-bottom:0;}
.timeline h4 {font-size:1rem;font-weight:700;margin:0 0 6px;}
.timeline p {margin:0;color:var(--muted);font-size:.92rem;line-height:1.8;}
.tag-list {display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.tag {font-size:.82rem;color:var(--text);background:var(--card-2);border:1px solid var(--line);border-radius:999px;padding:7px 14px;}
.tag i {color:var(--main);margin-right:6px;font-size:.78rem;}
.qa {border:1px solid var(--line);border-radius:var(--r-md);background:var(--card);padding:20px 22px;margin-bottom:14px;}
.qa h4 {font-size:.98rem;font-weight:700;margin:0 0 8px;color:var(--text);}
.qa h4 i {color:var(--main);margin-right:8px;font-size:.85rem;}
.qa p {margin:0;color:var(--muted);font-size:.92rem;line-height:1.85;}
.cta-band {background:linear-gradient(135deg,rgba(56,189,248,.14),rgba(167,139,250,.14));border:1px solid var(--line);border-radius:var(--r-lg);padding:34px 26px;text-align:center;box-shadow:var(--shadow-soft);}
.cta-band h2 {font-size:clamp(1.25rem,2.4vw,1.7rem);font-weight:800;margin:0 0 10px;}
.cta-band p {color:var(--muted);max-width:620px;margin:0 auto 22px;line-height:1.85;font-size:.95rem;}
.cta-band .hero-actions {justify-content:center;}
.about-hero {padding:46px 0 4px;}
.sec {padding:40px 0;}
.panel {padding:22px 18px;}
.cta-band {padding:26px 18px;}

/* --- 子页面追加 --- */
/* ---------- NAV ---------- */
  header.site-head {position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
    background:rgba(15,23,42,.78);border-bottom:1px solid var(--line)}
/* ---------- HERO ---------- */
  .hero {position:relative;z-index:1;padding:64px 0 40px}
.btn-main,.btn-ghost {display:inline-flex;align-items:center;gap:9px;
    padding:13px 26px;border-radius:999px;font-weight:700;font-size:.95rem;transition:.24s}
/* ---------- SECTIONS ---------- */
  section.blk {position:relative;z-index:1;padding:52px 0}
.step-grid {display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step-card {background:linear-gradient(165deg,var(--card),var(--card-2));
    border:1px solid var(--line);border-radius:var(--r-md);padding:26px 22px;
    position:relative;transition:.26s}
.step-card:hover {transform:translateY(-4px);border-color:rgba(56,189,248,.4);
    box-shadow:var(--shadow-soft)}
.step-no {font-size:.78rem;font-weight:800;letter-spacing:.1em;color:var(--accent);
    margin-bottom:12px;display:block}
.step-card h3 {font-size:1.06rem;margin:0 0 10px;font-weight:700}
.step-card p {margin:0;color:var(--muted);font-size:.9rem}
.step-ico {width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
    background:rgba(56,189,248,.12);color:var(--main);font-size:1.05rem;margin-bottom:16px}
.feat-item {display:flex;gap:16px;background:rgba(22,33,60,.7);
    border:1px solid var(--line);border-radius:var(--r-md);padding:22px}
.feat-item i {flex:0 0 auto;width:42px;height:42px;border-radius:12px;display:grid;
    place-items:center;background:rgba(167,139,250,.14);color:var(--accent);font-size:1rem}
.feat-item h3 {margin:0 0 6px;font-size:1rem;font-weight:700}
.feat-item p {margin:0;color:var(--muted);font-size:.88rem}
.story-wrap {display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:center}
.story-text p {color:var(--muted);font-size:.96rem;margin:0 0 14px}
.story-text p:last-child {margin-bottom:0}
.story-text strong {color:var(--main);font-weight:700}
.story-img {border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
    box-shadow:var(--shadow)}
.story-img img {width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.faq-list {display:grid;gap:12px;max-width:900px}
.faq-item.open .faq-q i {transform:rotate(180deg)}
.faq-a p {margin:0;padding:0 22px 20px;color:var(--muted);font-size:.92rem}
.faq-item.open .faq-a {max-height:320px}
/* ---------- FOOTER ---------- */
  footer.site-foot {border-top:1px solid var(--line);margin-top:40px;padding:42px 0 30px;
    position:relative;z-index:1;background:rgba(15,23,42,.6)}
.foot-grid h4 {font-size:.86rem;letter-spacing:.12em;text-transform:uppercase;
    color:var(--muted);margin:0 0 14px;font-weight:700}
.foot-grid p {color:var(--muted);font-size:.9rem;margin:0 0 8px}
.foot-links {list-style:none;margin:0;padding:0;display:grid;gap:9px}
.foot-links a {color:var(--muted);font-size:.9rem;transition:.2s}
.foot-links a:hover {color:var(--main)}
.step-grid {grid-template-columns:1fr 1fr}
.story-wrap {grid-template-columns:1fr}
.nav-links.show {display:flex}
.step-grid {grid-template-columns:1fr}
section.blk {padding:38px 0}

/* --- 子页面追加 --- */
/* 页面专属少量样式，其余复用站点类名 */
  .legal-hero {padding:64px 0 26px;position:relative;overflow:hidden;}
.legal-hero h1 {font-size:clamp(1.7rem,4vw,2.6rem);font-weight:800;line-height:1.25;margin:14px 0 14px;letter-spacing:-.5px;}
.legal-hero p {color:var(--muted);max-width:760px;line-height:1.85;font-size:.98rem;margin:0;}
.legal-meta {display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.legal-chip {display:inline-flex;align-items:center;gap:8px;font-size:.82rem;color:var(--muted);
    background:var(--card);border:1px solid var(--line);border-radius:999px;padding:7px 15px;}
.legal-chip i {color:var(--main);}
.legal-wrap {padding:14px 0 70px;}
.legal-layout {display:grid;grid-template-columns:260px 1fr;gap:28px;align-items:start;}
.toc {position:sticky;top:96px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 20px;box-shadow:var(--shadow);}
.toc h3 {font-size:.86rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 14px;font-weight:600;}
.toc ol {list-style:none;margin:0;padding:0;counter-reset:toc;}
.toc li {counter-increment:toc;margin-bottom:4px;}
.toc a {display:flex;gap:10px;align-items:baseline;color:var(--text);font-size:.9rem;padding:8px 10px;border-radius:10px;transition:.2s;line-height:1.5;}
.toc a::before {content:counter(toc,decimal-leading-zero);color:var(--main);font-weight:700;font-size:.76rem;flex:0 0 auto;}
.toc a:hover {background:var(--card-2);color:var(--main);}
.legal-body {display:flex;flex-direction:column;gap:22px;}
.legal-card {background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 30px 26px;box-shadow:var(--shadow);scroll-margin-top:100px;}
.legal-card h2 {font-size:clamp(1.15rem,2.4vw,1.4rem);font-weight:800;margin:0 0 16px;display:flex;align-items:center;gap:12px;line-height:1.4;}
.legal-card h2 .idx {flex:0 0 auto;width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
    background:linear-gradient(135deg,rgba(56,189,248,.22),rgba(167,139,250,.22));color:var(--main);font-size:.86rem;font-weight:800;border:1px solid var(--line);}
.legal-card p {color:var(--muted);line-height:1.9;font-size:.94rem;margin:0 0 12px;}
.legal-card p:last-child {margin-bottom:0;}
.legal-card strong {color:var(--text);font-weight:600;}
.legal-card a.inline {color:var(--main);border-bottom:1px dashed rgba(56,189,248,.4);}
.legal-card a.inline:hover {color:var(--accent);border-color:var(--accent);}
.legal-list {list-style:none;margin:10px 0 0;padding:0;display:flex;flex-direction:column;gap:12px;}
.legal-list li {position:relative;padding-left:26px;color:var(--muted);line-height:1.85;font-size:.93rem;}
.legal-list li::before {content:"\f0da";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:2px;top:2px;color:var(--main);font-size:.8rem;}
.legal-list li strong {color:var(--text);}
.note-box {display:flex;gap:14px;background:var(--card-2);border:1px solid var(--line);border-left:3px solid var(--main);border-radius:var(--r-sm);padding:16px 18px;margin-top:16px;}
.note-box i {color:var(--main);font-size:1.05rem;line-height:1.6;}
.note-box p {margin:0;font-size:.9rem;color:var(--muted);line-height:1.8;}
.cta-band h3 {margin:0 0 6px;font-size:1.08rem;font-weight:800;}
.cta-band .btns {display:flex;gap:12px;flex-wrap:wrap;}
.legal-layout {grid-template-columns:1fr;}
.toc {position:static;order:-1;}
.toc ol {display:grid;grid-template-columns:1fr 1fr;gap:0 10px;}
.legal-card {padding:24px 20px;}
.toc ol {grid-template-columns:1fr;}

/* --- 子页面追加 --- */
/* 本页专属少量样式，全部沿用站点变量 */
  .page-head {
    position:relative;padding:120px 0 56px;text-align:center;
  }
.page-head .hero-eyebrow {margin-bottom:14px;}
.page-head h1 {
    font-size:clamp(28px,4.4vw,46px);font-weight:800;line-height:1.25;
    margin:0 0 18px;letter-spacing:-.5px;
  }
.page-head p {
    max-width:720px;margin:0 auto;color:var(--muted);font-size:16px;line-height:1.85;
  }
.sec-title {
    font-size:clamp(22px,2.6vw,30px);font-weight:800;margin:0 0 12px;letter-spacing:-.3px;
    display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  }
.sec-title i {color:var(--main);font-size:.85em;}
.contact-grid {
    display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;
  }
.c-card {
    background:linear-gradient(165deg,var(--card-2),var(--card));
    border:1px solid var(--line);border-radius:var(--r-md);
    padding:26px 24px;transition:.28s ease;position:relative;overflow:hidden;
  }
.c-card::after {
    content:"";position:absolute;inset:0;pointer-events:none;
    background:radial-gradient(420px 180px at 110% -20%,rgba(56,189,248,.14),transparent 70%);
  }
.c-card:hover {transform:translateY(-4px);border-color:rgba(56,189,248,.42);box-shadow:var(--shadow-soft);}
.c-icon {
    width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
    background:rgba(56,189,248,.12);color:var(--main);font-size:19px;margin-bottom:16px;
    border:1px solid rgba(56,189,248,.22);
  }
.c-card h3 {font-size:17px;font-weight:700;margin:0 0 10px;color:var(--text);}
.c-card p {color:var(--muted);font-size:14px;line-height:1.8;margin:0 0 14px;}
.c-mail {
    display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
    color:var(--main);word-break:break-all;
  }
.c-mail i {font-size:12px;}
.c-tag {
    display:inline-block;font-size:12px;padding:3px 10px;border-radius:999px;
    background:rgba(167,139,250,.14);color:var(--accent);border:1px solid rgba(167,139,250,.28);
    margin-bottom:14px;
  }
.step-list {display:grid;gap:14px;counter-reset:st;}
.step-item {
    display:flex;gap:16px;align-items:flex-start;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);
    padding:18px 20px;
  }
.step-num {
    flex:0 0 34px;height:34px;border-radius:10px;display:grid;place-items:center;
    background:rgba(56,189,248,.14);color:var(--main);font-weight:800;font-size:14px;
    border:1px solid rgba(56,189,248,.24);
  }
.step-item h4 {margin:0 0 6px;font-size:15px;font-weight:700;color:var(--text);}
.step-item p {margin:0;font-size:14px;line-height:1.75;color:var(--muted);}
.info-card {
    background:linear-gradient(160deg,var(--card-2),var(--card));
    border:1px solid var(--line);border-radius:var(--r-lg);
    padding:30px 28px;box-shadow:var(--shadow);
  }
.info-card h3 {font-size:18px;font-weight:700;margin:0 0 18px;color:var(--text);}
.kv {display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14px;}
.kv:last-child {border-bottom:0;}
.kv span:first-child {color:var(--muted);flex:0 0 auto;}
.kv span:last-child {color:var(--text);font-weight:600;text-align:right;}
.faq-item h4 {margin:0 0 10px;font-size:15px;font-weight:700;color:var(--text);display:flex;gap:10px;align-items:flex-start;}
.faq-item h4 i {color:var(--accent);font-size:13px;margin-top:3px;flex:0 0 auto;}
.faq-item p {margin:0;color:var(--muted);font-size:14px;line-height:1.85;padding-left:23px;}
.note-box strong {color:var(--main);}
.page-head {padding:96px 0 36px;}
.info-card {padding:24px 20px;}