/* roulang page: index */
:root{
  --brand-400:#FF7A45; --brand-500:#F4551F; --brand-600:#D93E12;
  --accent-400:#8B5CF6; --accent-500:#6C3CE9;
  --mint:#10B981; --amber:#FFB020;
  --ink-950:#14101C; --ink-900:#17131F; --ink-600:#5B5566; --ink-400:#8E8896;
  --line:#EFE8E2; --bg:#FFF9F5; --surface:#FFFFFF;
  --grad:linear-gradient(120deg,#FF7A45 0%,#F4551F 42%,#6C3CE9 100%);
  --radius-lg:24px; --radius-md:16px; --radius-sm:14px;
  --shadow:0 1px 2px rgba(23,19,31,.04), 0 12px 32px -12px rgba(23,19,31,.12);
  --shadow-hover:0 18px 44px -14px rgba(23,19,31,.20);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--ink-600);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-500);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{color:var(--ink-900);letter-spacing:0;font-weight:700;}
:focus-visible{outline:3px solid rgba(244,85,31,.30);outline-offset:2px;border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}
@media(min-width:768px){.container{padding:0 24px;}}
@media(min-width:1024px){.container{padding:0 32px;}}
.section{padding:64px 0;}
@media(min-width:768px){.section{padding:96px 0;}}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;color:var(--brand-600);
  background:rgba(244,85,31,.08);border:1px solid rgba(244,85,31,.18);
  padding:5px 14px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(22px,3vw,30px);line-height:1.3;font-weight:700;margin-bottom:12px;}
.section-head p{font-size:15.5px;color:var(--ink-600);line-height:1.85;}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,249,245,.92);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .25s ease,box-shadow .25s ease;}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 10px 30px -22px rgba(23,19,31,.35);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px;}
@media(min-width:1024px){.header-inner{height:76px;}}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--ink-900);white-space:nowrap;}
.brand:hover{color:var(--ink-900);}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--grad);display:grid;place-items:center;color:#fff;font-size:14px;font-weight:800;box-shadow:0 8px 20px -10px rgba(244,85,31,.85);}
.chip-nav{display:none;align-items:center;gap:4px;background:#F5EFEA;border:1px solid var(--line);padding:4px;border-radius:999px;}
@media(min-width:1024px){.chip-nav{display:inline-flex;}}
.chip{display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:999px;font-size:14.5px;font-weight:600;color:var(--ink-600);transition:all .22s ease;white-space:nowrap;}
.chip:hover{color:var(--ink-900);background:rgba(255,255,255,.85);}
.chip.is-active{background:var(--grad);color:#fff;box-shadow:0 8px 20px -12px rgba(108,60,233,.9);}
.chip.is-active:hover{color:#fff;}
.header-actions{display:flex;align-items:center;gap:10px;}
.menu-toggle{width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;gap:4px;}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;}
@media(min-width:1024px){.menu-toggle{display:none;}}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:16px;}
.mobile-drawer.is-open{display:block;}
@media(min-width:1024px){.mobile-drawer{display:none !important;}}
.mobile-drawer nav{display:grid;gap:8px;}
.mobile-drawer a{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 16px;border-radius:14px;background:var(--bg);font-weight:600;color:var(--ink-900);}
.mobile-drawer a.is-active{background:var(--grad);color:#fff;}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:700;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;text-align:center;}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 30px -14px rgba(244,85,31,.85);}
.btn-primary:hover{color:#fff;transform:translateY(-1px) scale(1.02);filter:brightness(1.08);box-shadow:0 18px 40px -16px rgba(108,60,233,.75);}
.btn-ghost{background:rgba(244,85,31,.08);color:var(--brand-600);border:1px solid rgba(244,85,31,.22);}
.btn-ghost:hover{background:rgba(244,85,31,.14);color:var(--brand-600);transform:translateY(-1px);}
.btn-outline{background:#fff;color:var(--ink-900);border:1px solid var(--line);}
.btn-outline:hover{color:var(--ink-900);border-color:rgba(255,122,69,.5);box-shadow:var(--shadow);}
.btn-block{width:100%;}

/* hero */
.hero{position:relative;overflow:hidden;padding:44px 0 56px;}
@media(min-width:1024px){.hero{padding:72px 0 88px;}}
.hero-grid{display:grid;gap:40px;align-items:center;}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px;}}
.hero-copy{max-width:560px;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--accent-500);background:#fff;border:1px solid var(--line);padding:6px 16px;border-radius:999px;box-shadow:var(--shadow);}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--grad);display:inline-block;}
.hero h1{font-size:clamp(28px,4.6vw,44px);line-height:1.25;font-weight:800;margin:20px 0 18px;}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-lead{font-size:16.5px;line-height:1.9;color:var(--ink-600);}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 26px;}
.badge-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;}
@media(min-width:640px){.badge-row{grid-template-columns:repeat(3,minmax(0,1fr));}}
.badge{background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 16px;display:flex;flex-direction:column;gap:2px;box-shadow:var(--shadow);}
.badge b{font-size:20px;font-weight:800;color:var(--ink-900);font-variant-numeric:tabular-nums;line-height:1.2;}
.badge span{font-size:12.5px;color:var(--ink-400);}
.badge.mint b{color:var(--mint);}
.badge.amber b{color:var(--amber);}
.hero-note{margin-top:18px;font-size:12.5px;color:var(--ink-400);line-height:1.7;}
.hero-visual{position:relative;}
.hero-visual .photo{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);background:var(--grad);position:relative;}
.hero-visual .photo img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;}
.img-fallback{background:var(--grad);min-height:180px;}
.float-card{position:absolute;left:-8px;bottom:-18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:14px 18px;box-shadow:var(--shadow-hover);display:flex;gap:14px;align-items:center;}
@media(min-width:1024px){.float-card{left:-28px;bottom:-24px;padding:16px 22px;}}
.float-card b{font-size:22px;font-weight:800;color:var(--brand-500);font-variant-numeric:tabular-nums;}
.float-card span{font-size:12.5px;color:var(--ink-400);display:block;}
.glow{position:absolute;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(108,60,233,.35),rgba(255,122,69,0) 70%);filter:blur(6px);z-index:-1;}
.glow-a{top:-60px;right:-40px;}
.glow-b{bottom:-70px;left:-60px;background:radial-gradient(circle,rgba(255,122,69,.38),rgba(255,122,69,0) 70%);}

/* steps */
.steps-wrap{display:grid;gap:32px;align-items:center;}
@media(min-width:1024px){.steps-wrap{grid-template-columns:4fr 8fr;gap:48px;}}
.steps-photo{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:var(--grad);}
.steps-photo img{width:100%;aspect-ratio:3/4;object-fit:cover;}
@media(max-width:1023px){.steps-photo img{aspect-ratio:16/9;}}
.step-list{display:grid;gap:24px;position:relative;}
@media(min-width:768px){
  .step-list{grid-template-columns:repeat(3,1fr);gap:20px;}
  .step-list::before{content:"";position:absolute;top:26px;left:12%;right:12%;border-top:2px dashed rgba(244,85,31,.32);z-index:0;}
}
.step{position:relative;z-index:1;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px 22px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,122,69,.4);}
.step-num{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:#fff;border:2px solid transparent;background-image:linear-gradient(#fff,#fff),var(--grad);background-origin:border-box;background-clip:padding-box,border-box;font-weight:800;font-size:19px;color:var(--brand-500);font-variant-numeric:tabular-nums;margin-bottom:16px;}
.step h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.step p{font-size:14.5px;line-height:1.8;color:var(--ink-600);}

/* evidence */
.evidence-grid{display:grid;gap:20px;}
@media(min-width:768px){.evidence-grid{grid-template-columns:repeat(2,1fr);gap:24px;}}
.evidence-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column;}
.evidence-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,122,69,.4);}
.evidence-card .cover{overflow:hidden;background:var(--grad);}
.evidence-card .cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .28s ease-out;}
.evidence-card:hover .cover img{transform:scale(1.03);}
.evidence-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.tag{display:inline-flex;align-items:center;font-size:12.5px;font-weight:700;padding:4px 12px;border-radius:999px;background:rgba(108,60,233,.09);color:var(--accent-500);width:fit-content;}
.tag.mint{background:rgba(16,185,129,.10);color:var(--mint);}
.evidence-body h3{font-size:19px;line-height:1.5;}
.evidence-body p{font-size:14.5px;line-height:1.85;}
.evidence-body .more{margin-top:auto;font-size:14px;font-weight:700;color:var(--brand-600);}
.stat-band{margin-top:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 20px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;box-shadow:var(--shadow);}
@media(min-width:768px){.stat-band{padding:30px 32px;}}
@media(min-width:1024px){.stat-band{grid-template-columns:repeat(4,minmax(0,1fr));}}
.stat b{display:block;font-size:26px;font-weight:800;color:var(--ink-900);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat span{font-size:13px;color:var(--ink-400);}
.stat.mint b{color:var(--mint);}
.stat.amber b{color:var(--amber);}

/* posts */
.posts-section{background:linear-gradient(180deg,#FFF9F5 0%,#FDF3EC 100%);}
.post-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media(min-width:640px){.post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.post-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}}
.post-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,122,69,.4);}
.post-cover{overflow:hidden;background:var(--grad);}
.post-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .28s ease-out;}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.post-body h3{font-size:17px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body p{font-size:14.5px;line-height:1.8;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-400);font-variant-numeric:tabular-nums;}
.post-meta .more{color:var(--brand-600);font-weight:700;}
.empty-state{border:1px dashed rgba(255,122,69,.45);border-radius:var(--radius-lg);background:#fff;padding:48px 20px;text-align:center;color:var(--ink-400);font-size:14.5px;}
.posts-foot{margin-top:32px;text-align:center;}

/* faq */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item.is-open{border-color:rgba(255,122,69,.45);box-shadow:var(--shadow-hover);}
.faq-q{width:100%;display:flex;align-items:center;gap:16px;padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--ink-900);min-height:60px;}
.faq-num{flex:0 0 auto;width:32px;height:32px;border-radius:10px;display:grid;place-items:center;font-size:13px;font-weight:800;color:#fff;background:var(--grad);font-variant-numeric:tabular-nums;}
.faq-q span.q{flex:1;}
.faq-arrow{flex:0 0 auto;width:18px;height:18px;position:relative;transition:transform .25s ease;}
.faq-arrow::before,.faq-arrow::after{content:"";position:absolute;top:8px;width:10px;height:2px;background:var(--brand-500);border-radius:2px;}
.faq-arrow::before{left:0;transform:rotate(45deg);}
.faq-arrow::after{right:0;transform:rotate(-45deg);}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;}
.faq-a p{padding:0 20px 20px 68px;font-size:15px;line-height:1.85;color:var(--ink-600);}

/* cta */
.cta-section{position:relative;background:var(--ink-950);color:#E9E4F0;overflow:hidden;border-radius:0;}
.cta-section .glow{opacity:.55;}
.cta-grid{position:relative;display:grid;gap:36px;align-items:center;}
@media(min-width:1024px){.cta-grid{grid-template-columns:1fr 1fr;gap:56px;}}
.cta-copy h2{color:#fff;font-size:clamp(22px,3vw,30px);line-height:1.35;margin-bottom:14px;}
.cta-copy p{font-size:15.5px;line-height:1.9;color:#C8C1D4;}
.cta-list{margin-top:22px;display:grid;gap:10px;}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#D8D2E2;}
.cta-list li::before{content:"";flex:0 0 auto;width:8px;height:8px;margin-top:8px;border-radius:50%;background:var(--grad);}
.form-card{background:#fff;border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-hover);color:var(--ink-600);}
@media(min-width:768px){.form-card{padding:32px;}}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .sub{font-size:13.5px;color:var(--ink-400);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-900);margin-bottom:7px;}
.field input,.field select,.field textarea{width:100%;min-height:48px;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;transition:border-color .2s ease,box-shadow .2s ease;}
.field textarea{min-height:96px;resize:vertical;}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#8E8896 50%),linear-gradient(135deg,#8E8896 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand-400);box-shadow:0 0 0 3px rgba(244,85,31,.16);}
.field .hint{font-size:12px;color:var(--ink-400);margin-top:6px;}
.form-msg{margin-top:14px;font-size:13.5px;color:var(--mint);display:none;}
.form-msg.is-shown{display:block;}

/* footer */
.site-footer{background:var(--ink-950);color:#B9B2C6;padding:56px 0 0;}
.footer-grid{display:grid;gap:32px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:14px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px;}
.footer-col p{font-size:14px;line-height:1.85;color:#B9B2C6;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#B9B2C6;min-height:24px;display:inline-flex;align-items:center;}
.footer-col a:hover{color:var(--brand-400);}
.footer-bottom{margin-top:44px;border-top:1px solid rgba(255,255,255,.10);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8E8896;}

@media(max-width:520px){
  .hero-actions .btn{width:100%;}
  .float-card{position:static;margin-top:14px;left:auto;bottom:auto;}
  .faq-a p{padding-left:20px;}
  h1{word-break:break-word;}
}

/* roulang page: article */
:root{
  --brand-400:#FF7A45;
  --brand-500:#F4551F;
  --brand-600:#D93E12;
  --accent-400:#8B5CF6;
  --accent-500:#6C3CE9;
  --mint:#10B981;
  --amber:#FFB020;
  --ink-950:#14101C;
  --ink-900:#17131F;
  --ink-600:#5B5566;
  --ink-400:#8E8896;
  --line:#EFE8E2;
  --bg:#FFF9F5;
  --surface:#FFFFFF;
  --soft-bg:#F5EFEA;
  --brand-tint:#FFF3EC;
  --grad:linear-gradient(120deg,#FF7A45 0%,#F4551F 42%,#6C3CE9 100%);
  --shadow-soft:0 1px 2px rgba(23,19,31,.04), 0 12px 32px -12px rgba(23,19,31,.12);
  --shadow-hover:0 18px 44px -14px rgba(23,19,31,.20);
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;height:auto;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{letter-spacing:0;color:var(--ink-900);margin:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}
@media(min-width:640px){.container{padding:0 24px;}}
@media(min-width:1024px){.container{padding:0 32px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,249,245,.94);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 10px 28px -22px rgba(23,19,31,.55);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:76px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;font-size:18px;font-weight:800;color:var(--ink-900);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:13px;font-weight:800;letter-spacing:.02em;
  box-shadow:0 8px 18px -10px rgba(244,85,31,.9);
}
.chip-nav{
  display:flex;align-items:center;gap:4px;
  background:var(--soft-bg);padding:5px;border-radius:999px;
  margin:0 auto;
}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:40px;padding:8px 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--ink-600);white-space:nowrap;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.chip:hover{color:var(--brand-600);background:rgba(255,255,255,.85);}
.chip:focus-visible{outline:3px solid rgba(244,85,31,.3);outline-offset:2px;}
.chip.is-active{background:var(--grad);color:#fff;box-shadow:0 8px 18px -10px rgba(244,85,31,.85);}
.header-cta{flex:0 0 auto;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:999px;
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,filter .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn:focus-visible{outline:3px solid rgba(244,85,31,.3);outline-offset:2px;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px -14px rgba(244,85,31,.95);}
.btn-primary:hover{filter:brightness(1.08);transform:scale(1.02);box-shadow:0 18px 34px -16px rgba(108,60,233,.7);}
.btn-primary:active{transform:scale(.99);}
.btn-outline{background:#fff;color:var(--ink-900);border-color:var(--line);}
.btn-outline:hover{background:var(--brand-tint);color:var(--brand-600);border-color:rgba(255,122,69,.45);}
.btn-ghost-light{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.28);}
.btn-ghost-light:hover{background:rgba(255,255,255,.2);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}

/* ============ 文章头部 ============ */
.article-hero{padding:36px 0 4px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);}
.breadcrumb a{color:var(--ink-400);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:#CFC6BE;}
.breadcrumb .current{color:var(--ink-600);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.hero-head{margin-top:22px;max-width:820px;}
.cat-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  background:var(--brand-tint);color:var(--brand-600);
  font-size:13px;font-weight:600;border:1px solid rgba(244,85,31,.18);
}
.page-title{
  margin-top:16px;
  font-size:clamp(28px,4.6vw,44px);
  font-weight:800;line-height:1.25;color:var(--ink-900);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;margin-top:18px;font-size:14px;color:var(--ink-400);}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#D8CFC8;}
.meta-row .strong{color:var(--ink-600);font-weight:600;}

/* ============ 主体布局 ============ */
.article-layout{display:grid;grid-template-columns:1fr;gap:40px;padding:32px 0 72px;}
@media(min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 304px;gap:56px;padding:40px 0 88px;}
}
.article-col{max-width:780px;width:100%;}

.article-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-soft);
  padding:24px 20px;
}
@media(min-width:768px){.article-card{padding:36px 40px;}}

/* ============ 正文排版 ============ */
.article-body{font-size:16.5px;line-height:1.88;color:var(--ink-600);word-break:break-word;}
.article-body > * + *{margin-top:1.15em;}
.article-body h2{
  position:relative;
  margin-top:2.2em;
  padding-left:16px;
  font-size:clamp(20px,3vw,26px);
  font-weight:700;line-height:1.4;color:var(--ink-900);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:5px;
  border-radius:999px;background:var(--grad);
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{margin-top:1.9em;font-size:19px;font-weight:600;line-height:1.5;color:var(--ink-900);}
.article-body h4{margin-top:1.6em;font-size:16.5px;font-weight:600;color:var(--ink-900);}
.article-body p{color:var(--ink-600);}
.article-body strong{color:var(--ink-900);font-weight:600;}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--accent-500);}
.article-body ul,.article-body ol{padding-left:1.4em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.45em 0;padding-left:.15em;}
.article-body li::marker{color:var(--brand-500);font-weight:700;}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;
  background:var(--brand-tint);
  border-left:3px solid var(--brand-400);
  border-radius:0 16px 16px 0;
  color:var(--ink-900);
}
.article-body blockquote p{color:var(--ink-900);}
.article-body figure{margin:1.6em 0;}
.article-body img{border-radius:var(--radius-md);width:100%;}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--ink-400);text-align:center;}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:2.2em 0;}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;
  font-size:15px;border:1px solid var(--line);border-radius:var(--radius-sm);
  overflow:hidden;
}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;}
.article-body th{background:var(--brand-tint);color:var(--ink-900);font-weight:600;}
.article-body tr:last-child td{border-bottom:0;}
.article-body code{background:var(--soft-bg);padding:2px 6px;border-radius:6px;font-size:.92em;color:var(--ink-900);}
.article-body pre{
  margin:1.6em 0;padding:18px 20px;background:var(--ink-950);color:#F1ECE7;
  border-radius:var(--radius-md);overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;color:inherit;padding:0;}

.empty-state{
  text-align:center;padding:48px 24px;border:1px dashed var(--line);
  border-radius:var(--radius-md);background:#FFFDFB;
}
.empty-state .empty-title{font-size:20px;font-weight:700;color:var(--ink-900);margin-bottom:10px;}
.empty-state p{margin-bottom:20px;font-size:15px;color:var(--ink-400);}

/* ============ 侧栏 ============ */
.article-aside{display:flex;flex-direction:column;gap:18px;}
@media(min-width:1024px){
  .article-aside{position:sticky;top:100px;align-self:start;}
}
.aside-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-md);padding:20px;box-shadow:var(--shadow-soft);
}
.aside-title{
  display:flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--ink-900);margin-bottom:14px;
}
.aside-title::before{content:"";width:4px;height:14px;border-radius:999px;background:var(--grad);}
.toc-list{display:grid;gap:2px;max-height:340px;overflow-y:auto;}
.toc-list a{
  display:block;padding:7px 12px;border-radius:10px;
  font-size:14px;line-height:1.6;color:var(--ink-600);
  border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-list a:hover{background:var(--brand-tint);color:var(--brand-600);border-left-color:var(--brand-400);}
.toc-list a.toc-sub{padding-left:24px;font-size:13px;color:var(--ink-400);}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:999px;
  background:var(--soft-bg);font-size:13px;color:var(--ink-600);
  transition:background .2s ease,color .2s ease;
}
.tag:hover{background:var(--brand-tint);color:var(--brand-600);}
.aside-cta{
  position:relative;overflow:hidden;
  background:var(--ink-950);border:0;color:#EDE9F2;
  padding:22px;
}
.aside-cta::after{
  content:"";position:absolute;inset:-40% -30% auto auto;width:200px;height:200px;
  background:radial-gradient(circle,rgba(108,60,233,.55) 0%,rgba(244,85,31,.35) 45%,rgba(255,122,69,0) 70%);
  pointer-events:none;
}
.aside-cta h3{position:relative;font-size:17px;font-weight:700;color:#fff;line-height:1.5;}
.aside-cta p{position:relative;margin-top:10px;font-size:14px;line-height:1.8;color:#B9B3C0;}
.aside-cta .btn{position:relative;width:100%;margin-top:16px;}

/* ============ 文末模块 ============ */
.article-footer-zone{display:grid;gap:32px;margin-top:40px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px;}
.section-head h2{font-size:22px;font-weight:700;color:var(--ink-900);}
.section-head p{font-size:14px;color:var(--ink-400);margin-top:6px;}

.related-grid{display:grid;gap:18px;grid-template-columns:1fr;}
@media(min-width:640px){.related-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.related-grid{grid-template-columns:repeat(3,1fr);}}
.post-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-soft);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(255,122,69,.45);box-shadow:var(--shadow-hover);}
.post-card .thumb{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(120deg,#FFE7DA,#EFE7FF);}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out;}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-card .body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card .cat{font-size:12px;font-weight:600;color:var(--brand-600);background:var(--brand-tint);border-radius:999px;padding:4px 11px;align-self:flex-start;}
.post-card h3{font-size:16px;font-weight:600;line-height:1.55;color:var(--ink-900);}
.post-card .excerpt{font-size:14px;line-height:1.75;color:var(--ink-600);}
.post-card .meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-400);}
.post-card .more{color:var(--brand-600);font-weight:600;}
.post-card:hover .more{color:var(--accent-500);}

.post-nav{display:grid;gap:12px;grid-template-columns:1fr;}
@media(min-width:640px){.post-nav{grid-template-columns:repeat(2,1fr);}}
.post-nav a{
  display:block;padding:18px 20px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--surface);box-shadow:var(--shadow-soft);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.post-nav a:hover{transform:translateY(-3px);border-color:rgba(108,60,233,.4);box-shadow:var(--shadow-hover);}
.post-nav .nav-label{font-size:12px;color:var(--ink-400);}
.post-nav .nav-title{margin-top:6px;font-size:15px;font-weight:600;color:var(--ink-900);line-height:1.6;}

.back-entry{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.back-entry .hint{font-size:14px;color:var(--ink-400);}

.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-950);border-radius:var(--radius-lg);
  padding:30px 26px;color:#fff;
  display:flex;flex-wrap:wrap;gap:22px;align-items:center;justify-content:space-between;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-90px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(244,85,31,.55) 0%,rgba(108,60,233,.4) 45%,rgba(20,16,28,0) 72%);
  pointer-events:none;
}
.cta-band .cta-text{position:relative;max-width:560px;}
.cta-band h2{font-size:clamp(20px,3vw,26px);font-weight:700;color:#fff;line-height:1.45;}
.cta-band p{margin-top:10px;font-size:15px;line-height:1.85;color:#BEB7C8;}
.cta-band .cta-actions{position:relative;display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-950);color:#B9B3C0;padding:56px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800;}
.footer-col p{margin-top:14px;font-size:14px;line-height:1.85;color:#9B95A6;max-width:340px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{list-style:none;display:grid;gap:11px;}
.footer-col ul a{font-size:14px;color:#B9B3C0;transition:color .2s ease;}
.footer-col ul a:hover{color:var(--brand-400);}
.footer-bottom{
  margin-top:42px;padding:20px 0 28px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8E8896;
}

/* ============ 响应式导航 ============ */
@media(max-width:900px){
  .header-inner{flex-wrap:wrap;min-height:auto;padding:10px 0;row-gap:10px;}
  .chip-nav{order:3;width:100%;margin:0;overflow-x:auto;flex-wrap:nowrap;scrollbar-width:none;}
  .chip-nav::-webkit-scrollbar{display:none;}
  .header-cta{margin-left:auto;}
  .brand{font-size:16px;}
}
@media(max-width:520px){
  .brand-mark{width:34px;height:34px;}
  .article-card{padding:20px 16px;}
  .cta-band{padding:26px 20px;}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --brand-400:#FF7A45; --brand-500:#F4551F; --brand-600:#D93E12;
  --accent-400:#8B5CF6; --accent-500:#6C3CE9;
  --mint:#10B981; --amber:#FFB020;
  --ink-950:#14101C; --ink-900:#17131F; --ink-600:#5B5566; --ink-400:#8E8896;
  --line:#EFE8E2; --bg:#FFF9F5; --surface:#FFFFFF;
  --grad:linear-gradient(120deg,#FF7A45 0%,#F4551F 42%,#6C3CE9 100%);
  --radius-lg:24px; --radius-sm:16px;
  --shadow-1:0 1px 2px rgba(23,19,31,.04),0 12px 32px -12px rgba(23,19,31,.12);
  --shadow-2:0 18px 44px -14px rgba(23,19,31,.20);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-600);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{color:var(--ink-900);letter-spacing:0;margin:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(244,85,31,.30);outline-offset:2px;border-radius:8px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px;}
@media(min-width:768px){.container{padding-left:24px;padding-right:24px;}}
@media(min-width:1024px){.container{padding-left:32px;padding-right:32px;}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,249,245,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 6px 24px -18px rgba(23,19,31,.45);
  background:rgba(255,255,255,.94);
}
.header-inner{
  display:flex;align-items:center;gap:16px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);color:#fff;
  display:grid;place-items:center;
  font-weight:800;font-size:14px;font-variant-numeric:tabular-nums;
  box-shadow:0 8px 20px -10px rgba(244,85,31,.85);
}
.brand-text{font-weight:800;color:var(--ink-900);font-size:16px;white-space:nowrap;}
.chip-nav{
  display:none;align-items:center;gap:4px;
  background:#F5EFEA;padding:4px;border-radius:999px;
  margin-left:8px;
}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:36px;padding:0 16px;border-radius:999px;
  font-size:14px;color:var(--ink-900);white-space:nowrap;
  transition:all .2s ease;font-weight:500;
}
.chip:hover{background:rgba(255,255,255,.85);color:var(--brand-600);}
.chip.is-active{
  background:var(--grad);color:#fff;font-weight:600;
  box-shadow:0 8px 18px -10px rgba(244,85,31,.9);
}
.header-cta{margin-left:auto;display:none;}
.menu-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:.2s;}
.menu-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.menu-toggle.is-open span:nth-child(2){opacity:0;}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:14px 0 20px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .drawer-links{display:flex;flex-direction:column;gap:4px;}
.mobile-drawer .drawer-links a{
  padding:12px 14px;border-radius:14px;font-size:15px;color:var(--ink-900);
}
.mobile-drawer .drawer-links a:hover{background:#FBF4EF;color:var(--brand-600);}
.mobile-drawer .drawer-links a.is-active{background:var(--grad);color:#fff;font-weight:600;}
.mobile-drawer .drawer-cta{margin-top:12px;}
@media(min-width:1024px){
  .chip-nav{display:flex;}
  .header-cta{display:block;}
  .menu-toggle{display:none;}
  .mobile-drawer{display:none !important;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
  white-space:nowrap;
}
.btn-sm{min-height:44px;padding:0 20px;font-size:14px;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 14px 30px -16px rgba(244,85,31,.95);}
.btn-primary:hover{filter:brightness(1.08);transform:scale(1.02);box-shadow:0 18px 38px -16px rgba(244,85,31,1);}
.btn-primary:active{transform:scale(.99);}
.btn-ghost{background:#fff;color:var(--ink-900);border-color:var(--line);}
.btn-ghost:hover{background:#FFF1EA;border-color:var(--brand-400);color:var(--brand-600);transform:scale(1.02);}
.btn-light{background:#fff;color:var(--brand-600);}
.btn-light:hover{background:#FFEFE7;transform:scale(1.02);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:scale(1.02);}

/* ---------- 页面横幅 ---------- */
.page-banner{position:relative;overflow:hidden;color:#fff;}
.banner-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(115deg, rgba(20,16,28,.90) 0%, rgba(20,16,28,.72) 48%, rgba(108,60,233,.72) 100%), url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.banner-inner{position:relative;padding:64px 0 56px;}
@media(min-width:768px){.banner-inner{padding:88px 0 72px;}}
.banner-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  font-size:13px;color:#fff;margin-bottom:18px;
}
.banner-chip i{width:6px;height:6px;border-radius:50%;background:var(--brand-400);display:block;}
.banner-inner h1{
  color:#fff;font-size:clamp(28px,4.6vw,44px);font-weight:800;line-height:1.25;
  max-width:820px;
}
.banner-sub{
  margin-top:16px;max-width:660px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.84);
}
.banner-meta{
  margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;
}
.banner-meta span{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.24);
  font-size:13px;color:rgba(255,255,255,.92);
  font-variant-numeric:tabular-nums;
}

/* ---------- 锚点条 ---------- */
.anchor-bar{
  position:sticky;top:72px;z-index:40;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.anchor-scroll{
  display:flex;gap:8px;overflow-x:auto;padding:12px 0;
  scrollbar-width:none;
}
.anchor-scroll::-webkit-scrollbar{display:none;}
.anchor-chip{
  display:inline-flex;align-items:center;gap:8px;
  min-height:40px;padding:0 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:13.5px;color:var(--ink-600);white-space:nowrap;
  transition:all .2s ease;font-variant-numeric:tabular-nums;
}
.anchor-chip b{color:var(--brand-500);font-weight:800;font-variant-numeric:tabular-nums;}
.anchor-chip:hover{border-color:var(--brand-400);color:var(--brand-600);background:#FFF6F1;}
.anchor-chip.is-current{background:var(--grad);color:#fff;border-color:transparent;}
.anchor-chip.is-current b{color:#fff;}

/* ---------- 主区布局 ---------- */
.main-wrap{padding:56px 0 8px;}
@media(min-width:768px){.main-wrap{padding:72px 0 8px;}}
.guide-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media(min-width:1024px){
  .guide-grid{grid-template-columns:232px minmax(0,1fr);gap:48px;}
}
.side-nav{display:none;}
@media(min-width:1024px){
  .side-nav{
    display:block;position:sticky;top:150px;align-self:start;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:22px 18px;box-shadow:var(--shadow-1);
  }
}
.side-nav h4{
  font-size:13px;color:var(--ink-400);font-weight:600;letter-spacing:.04em;
  margin-bottom:14px;
}
.side-nav ul{display:flex;flex-direction:column;gap:2px;}
.side-nav a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:12px;font-size:14px;color:var(--ink-600);
  transition:all .18s ease;border-left:2px solid transparent;
}
.side-nav a b{
  font-variant-numeric:tabular-nums;font-weight:800;color:var(--ink-400);
  font-size:12.5px;
}
.side-nav a:hover{background:#FBF4EF;color:var(--brand-600);}
.side-nav a:hover b{color:var(--brand-500);}
.side-nav a.is-current{background:#FFF3EC;color:var(--brand-600);border-left-color:var(--brand-500);font-weight:600;}
.side-nav a.is-current b{color:var(--brand-500);}
.side-note{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:12.5px;color:var(--ink-400);line-height:1.7;
}

/* ---------- 时间轴章节 ---------- */
.section-head{margin-bottom:28px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-600);
  background:#FFF1EA;border:1px solid #FFDCCB;border-radius:999px;
  padding:5px 12px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,2.6vw,30px);font-weight:700;line-height:1.35;}
.section-head p{margin-top:10px;font-size:15px;color:var(--ink-600);max-width:680px;}

.timeline{position:relative;display:flex;flex-direction:column;gap:22px;}
.timeline::before{
  content:'';position:absolute;left:23px;top:20px;bottom:20px;
  border-left:2px dashed #E4D8CF;
}
.tl-item{position:relative;display:grid;grid-template-columns:48px minmax(0,1fr);gap:18px;}
.tl-num{
  position:relative;z-index:1;
  width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;
  font-weight:800;font-size:15px;
  font-variant-numeric:tabular-nums;
  color:var(--brand-600);
  background:linear-gradient(#fff,#fff) padding-box, var(--grad) border-box;
  border:2px solid transparent;
  box-shadow:0 10px 22px -16px rgba(23,19,31,.6);
}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px 22px 20px;box-shadow:var(--shadow-1);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,122,69,.4);}
.tl-card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.tl-card p{font-size:15px;line-height:1.85;}
.tl-points{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.tl-points li{
  position:relative;padding-left:20px;font-size:14.5px;color:var(--ink-600);
}
.tl-points li::before{
  content:'';position:absolute;left:2px;top:9px;
  width:7px;height:7px;border-radius:50%;
  background:var(--brand-400);
  box-shadow:0 0 0 3px rgba(255,122,69,.18);
}
.tl-foot{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
}
.tl-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-600);
  transition:gap .2s ease,color .2s ease;
}
.tl-link:hover{gap:10px;color:var(--brand-500);}
.tl-tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;font-size:12.5px;
  background:#F2FBF7;border:1px solid #C7EEDD;color:#0E8F65;
}
.tl-shot{
  margin-top:16px;border-radius:var(--radius-sm);overflow:hidden;
  border:1px solid var(--line);background:linear-gradient(120deg,#FFE7DA,#E7E0FB);
}
.tl-shot img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .25s ease;}
.tl-card:hover .tl-shot img{transform:scale(1.03);}
.tl-shot figcaption{
  padding:10px 14px;font-size:12.5px;color:var(--ink-400);background:#fff;
}

/* ---------- 核对清单 ---------- */
.check-band{
  margin-top:64px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:28px 22px;box-shadow:var(--shadow-1);
}
@media(min-width:768px){.check-band{padding:36px 34px;}}
.check-band h2{font-size:24px;font-weight:700;margin-bottom:8px;}
.check-band > p{font-size:15px;color:var(--ink-600);max-width:680px;}
.check-grid{
  margin-top:24px;display:grid;grid-template-columns:1fr;gap:12px;
}
@media(min-width:640px){.check-grid{grid-template-columns:1fr 1fr;}}
.check-item{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px;border-radius:var(--radius-sm);
  background:#FFFBF8;border:1px solid var(--line);
  transition:border-color .2s ease, transform .2s ease;
}
.check-item:hover{border-color:rgba(255,122,69,.45);transform:translateY(-2px);}
.check-item i{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:#F2FBF7;border:1px solid #C7EEDD;color:var(--mint);
  display:grid;place-items:center;font-size:12px;font-style:normal;font-weight:800;
  margin-top:2px;
}
.check-item strong{display:block;font-size:15px;color:var(--ink-900);font-weight:600;margin-bottom:3px;}
.check-item span{font-size:13.5px;color:var(--ink-600);line-height:1.75;}

/* ---------- 数据带 ---------- */
.metric-band{
  margin-top:56px;
  border-radius:var(--radius-lg);
  background:linear-gradient(120deg,#FFF3EC 0%,#F4F0FE 100%);
  border:1px solid #F2E4DA;
  padding:26px 22px;
}
.metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
@media(min-width:1024px){.metric-grid{grid-template-columns:repeat(4,minmax(0,1fr));}}
.metric{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:18px 16px;
}
.metric b{
  display:block;font-size:24px;font-weight:800;color:var(--ink-900);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.metric b em{font-style:normal;font-size:14px;color:var(--ink-400);margin-left:3px;}
.metric span{display:block;margin-top:6px;font-size:13px;color:var(--ink-400);}

/* ---------- FAQ ---------- */
.faq-section{margin-top:64px;}
.faq-list{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;transition:border-color .2s ease, box-shadow .2s ease;
}
.faq-item.is-open{border-color:rgba(255,122,69,.45);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:18px 20px;background:transparent;border:0;text-align:left;
}
.faq-idx{
  flex:0 0 auto;width:34px;height:34px;border-radius:11px;
  background:var(--grad);color:#fff;font-weight:800;font-size:13px;
  display:grid;place-items:center;font-variant-numeric:tabular-nums;
}
.faq-q span{flex:1;font-size:15.5px;font-weight:600;color:var(--ink-900);line-height:1.6;}
.faq-arrow{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  color:var(--ink-400);font-size:12px;transition:transform .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);color:var(--brand-600);border-color:var(--brand-400);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .25s ease;
}
.faq-a p{
  padding:0 20px 20px 68px;font-size:15px;line-height:1.8;color:var(--ink-600);
}
@media(max-width:520px){
  .faq-a p{padding-left:20px;}
}

/* ---------- CTA 条 ---------- */
.cta-band{
  margin-top:64px;position:relative;overflow:hidden;
  border-radius:var(--radius-lg);
  background:var(--ink-950);
  padding:32px 24px;color:#fff;
  display:flex;flex-direction:column;gap:20px;
}
@media(min-width:900px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:40px 40px;}
}
.cta-band::after{
  content:'';position:absolute;right:-80px;top:-90px;width:320px;height:320px;
  border-radius:50%;background:var(--grad);opacity:.30;filter:blur(10px);
  pointer-events:none;
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.4vw,26px);font-weight:700;position:relative;z-index:1;}
.cta-band p{margin-top:8px;font-size:15px;color:rgba(255,255,255,.76);max-width:620px;position:relative;z-index:1;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-950);color:rgba(255,255,255,.72);margin-top:72px;padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:11px;font-size:13px;}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.68);transition:color .18s ease,padding-left .18s ease;}
.footer-col ul a:hover{color:var(--brand-400);padding-left:4px;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-direction:column;gap:8px;
  font-size:13px;color:rgba(255,255,255,.5);
}
@media(min-width:768px){.footer-bottom{flex-direction:row;justify-content:space-between;align-items:center;}}

/* 图片兜底 */
.img-fallback{background:linear-gradient(120deg,#FFE7DA 0%,#E7E0FB 100%);}

/* roulang page: category2 */
:root{
  --brand-500:#F4551F;
  --brand-600:#D93E12;
  --brand-400:#FF7A45;
  --accent-500:#6C3CE9;
  --accent-400:#8B5CF6;
  --mint:#10B981;
  --amber:#FFB020;
  --ink-950:#14101C;
  --ink-900:#17131F;
  --ink-600:#5B5566;
  --ink-400:#8E8896;
  --line:#EFE8E2;
  --bg:#FFF9F5;
  --surface:#FFFFFF;
  --grad:linear-gradient(120deg,#FF7A45 0%,#F4551F 42%,#6C3CE9 100%);
  --shadow-sm:0 1px 2px rgba(23,19,31,.04),0 12px 32px -12px rgba(23,19,31,.12);
  --shadow-lg:0 18px 44px -14px rgba(23,19,31,.20);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:14px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink-600);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{color:var(--ink-900);margin:0;letter-spacing:0;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(244,85,31,.35);outline-offset:2px;border-radius:10px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}
.section{padding:56px 0}
@media (min-width:768px){.section{padding:80px 0}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,249,245,.93);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 10px 28px -20px rgba(23,19,31,.45)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  display:grid;place-items:center;width:38px;height:38px;border-radius:12px;
  background:var(--grad);color:#fff;font-weight:800;font-size:15px;letter-spacing:.5px;
  font-variant-numeric:tabular-nums;flex:none;
}
.brand-name{font-weight:800;color:var(--ink-900);font-size:16px;white-space:nowrap}
.chip-nav{display:none}
@media (min-width:1024px){
  .chip-nav{
    display:flex;align-items:center;gap:4px;
    background:#F5EFEA;padding:4px;border-radius:999px;
  }
}
.chip{
  display:inline-flex;align-items:center;
  padding:9px 18px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--ink-600);
  white-space:nowrap;min-height:38px;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.chip:hover{color:var(--brand-600);background:rgba(255,255,255,.85)}
.chip.is-active{
  background-image:var(--grad);color:#fff;
  box-shadow:0 10px 22px -12px rgba(108,60,233,.75);
}
.chip.is-active:hover{color:#fff}
.header-actions{display:flex;align-items:center;gap:10px;flex:none}
.header-actions .btn{min-height:44px;padding:10px 20px;font-size:14px}
.nav-toggle{
  display:flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:14px;cursor:pointer;padding:0 11px;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (min-width:1024px){.nav-toggle{display:none}}
.mobile-drawer{max-height:0;overflow:hidden;transition:max-height .3s ease;background:#FFF9F5}
.mobile-drawer.open{max-height:480px;border-top:1px solid var(--line)}
.mobile-drawer .inner{padding:14px 16px 22px;display:grid;gap:8px}
.mobile-chip{
  display:block;padding:13px 18px;border-radius:14px;background:#fff;
  border:1px solid var(--line);color:var(--ink-900);font-weight:600;font-size:15px;
}
.mobile-chip.is-active{background-image:var(--grad);color:#fff;border-color:transparent}
@media (min-width:1024px){.mobile-drawer{display:none}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 26px;border-radius:999px;
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .2s ease,background-position .35s ease,color .2s ease;
}
.btn-primary{
  background-image:var(--grad);background-size:180% 100%;background-position:0% 50%;
  color:#fff;box-shadow:0 14px 28px -14px rgba(244,85,31,.8);
}
.btn-primary:hover{background-position:100% 50%;transform:scale(1.02);box-shadow:0 18px 36px -14px rgba(244,85,31,.85)}
.btn-primary:active{transform:scale(.99)}
.btn-ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.3);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.24)}
.btn-light{background:#fff;border-color:var(--line);color:var(--brand-600)}
.btn-light:hover{background:rgba(244,85,31,.08);border-color:rgba(255,122,69,.45)}

/* ---------- banner ---------- */
.page-banner{position:relative;overflow:hidden;background:var(--ink-950);color:#fff;padding:48px 0 52px}
.page-banner__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.45;
}
.page-banner__mask{
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(20,16,28,.94) 0%,rgba(20,16,28,.80) 46%,rgba(108,60,233,.62) 100%);
}
.page-banner .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7)}
.breadcrumb a{transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand-400)}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.breadcrumb .current{color:#fff}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  padding:6px 16px;border-radius:999px;font-size:13px;font-weight:600;
  color:#FFD9C6;background:rgba(255,122,69,.18);border:1px solid rgba(255,122,69,.45);
}
.banner-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-400)}
.page-banner h1{
  margin-top:16px;color:#fff;
  font-size:clamp(28px,4.6vw,44px);font-weight:800;line-height:1.25;
  max-width:900px;
}
.banner-desc{margin-top:16px;max-width:760px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.82)}
.anchor-bar{
  display:flex;gap:8px;overflow-x:auto;margin-top:30px;padding:6px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);border-radius:999px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.anchor-bar::-webkit-scrollbar{display:none}
.anchor-chip{
  flex:none;padding:9px 18px;border-radius:999px;font-size:14px;font-weight:600;
  color:#fff;background:rgba(255,255,255,.10);white-space:nowrap;
  transition:background-color .2s ease,transform .2s ease;
}
.anchor-chip:hover{background:rgba(255,255,255,.26);transform:translateY(-1px)}

/* ---------- section head ---------- */
.section-head{max-width:740px;margin-bottom:36px}
.section-title{font-size:clamp(22px,3.2vw,30px);font-weight:700}
.section-sub{margin-top:12px;font-size:15px;line-height:1.85;color:var(--ink-600)}

/* ---------- staggered rows ---------- */
.rule-row{
  display:grid;gap:24px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-sm);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.rule-row + .rule-row{margin-top:22px}
.rule-row:hover{box-shadow:var(--shadow-lg);border-color:rgba(255,122,69,.36)}
@media (min-width:900px){
  .rule-row{grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:40px;padding:32px}
  .rule-row.reverse .rule-media{order:2}
}
.rule-media{position:relative;overflow:hidden;border-radius:18px;background:linear-gradient(120deg,#FF7A45,#6C3CE9)}
.rule-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand-600);
  background:rgba(244,85,31,.10);border:1px solid rgba(244,85,31,.24);
  padding:5px 14px;border-radius:999px;
}
.rule-body h3{margin-top:14px;font-size:20px;font-weight:700}
.rule-body p{margin-top:12px;font-size:15.5px;line-height:1.85}
.check-list{margin-top:16px;display:grid;gap:10px}
.check-list li{position:relative;padding-left:28px;font-size:15px;line-height:1.75}
.check-list li::before{
  content:"";position:absolute;left:0;top:7px;width:17px;height:17px;border-radius:50%;
  background:rgba(16,185,129,.14);border:1px solid rgba(16,185,129,.45);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:12px;width:7px;height:4px;
  border-left:2px solid var(--mint);border-bottom:2px solid var(--mint);
  transform:rotate(-45deg);
}

/* ---------- numbered cards ---------- */
.rule-grid{display:grid;gap:20px}
@media (min-width:640px){.rule-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.rule-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}}
.rule-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:76px 24px 26px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rule-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(255,122,69,.4)}
.rule-num{
  position:absolute;top:20px;left:22px;
  display:grid;place-items:center;width:46px;height:46px;border-radius:14px;
  background-image:var(--grad);color:#fff;font-weight:800;font-size:15px;
  font-variant-numeric:tabular-nums;letter-spacing:.5px;
}
.rule-card h3{font-size:18px;font-weight:700}
.rule-card p{margin-top:10px;font-size:15px;line-height:1.8}

/* ---------- compare strip ---------- */
.compare-strip{
  display:grid;gap:16px;background:var(--ink-950);border-radius:28px;padding:28px;
  position:relative;overflow:hidden;
}
.compare-strip::after{
  content:"";position:absolute;width:340px;height:340px;right:-140px;bottom:-200px;border-radius:50%;
  background:var(--grad);filter:blur(90px);opacity:.42;
}
@media (min-width:900px){.compare-strip{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;padding:34px}}
.compare-item{
  position:relative;z-index:2;border-radius:20px;padding:22px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
}
.compare-item h3{color:#fff;font-size:17px;font-weight:700;display:flex;align-items:center;gap:10px}
.dot{width:10px;height:10px;border-radius:50%;flex:none}
.dot-mint{background:var(--mint);box-shadow:0 0 0 4px rgba(16,185,129,.18)}
.dot-amber{background:var(--amber);box-shadow:0 0 0 4px rgba(255,176,32,.18)}
.dot-accent{background:var(--accent-400);box-shadow:0 0 0 4px rgba(139,92,246,.2)}
.compare-item ul{margin-top:14px;display:grid;gap:9px}
.compare-item li{font-size:14.5px;line-height:1.7;color:rgba(255,255,255,.76);padding-left:16px;position:relative}
.compare-item li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.35)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s ease}
.faq-item:hover{border-color:rgba(255,122,69,.36)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:18px 22px;background:none;border:0;text-align:left;cursor:pointer;min-height:64px;
}
.faq-index{
  flex:none;display:grid;place-items:center;width:40px;height:40px;border-radius:13px;
  background:linear-gradient(135deg,rgba(255,122,69,.16),rgba(108,60,233,.16));
  border:1px solid rgba(244,85,31,.32);color:var(--brand-600);
  font-weight:800;font-size:14px;font-variant-numeric:tabular-nums;
}
.faq-q .q{flex:1;font-size:16px;font-weight:600;color:var(--ink-900);line-height:1.6}
.faq-arrow{
  flex:none;width:22px;height:22px;position:relative;
  transition:transform .25s ease;
}
.faq-arrow::before,.faq-arrow::after{
  content:"";position:absolute;top:10px;width:11px;height:2px;border-radius:2px;background:var(--ink-400);
}
.faq-arrow::before{left:1px;transform:rotate(45deg)}
.faq-arrow::after{right:1px;transform:rotate(-45deg)}
.faq-item.open .faq-arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-item.open .faq-a{max-height:360px}
.faq-a p{padding:0 24px 22px 78px;font-size:15px;line-height:1.85;color:var(--ink-600)}
@media (max-width:640px){
  .faq-a p{padding:0 18px 20px 18px}
}

/* ---------- CTA ---------- */
.cta-wrap{padding:0 0 72px}
.cta-strip{
  position:relative;overflow:hidden;background:var(--ink-950);color:#fff;
  border-radius:28px;padding:34px 24px;display:grid;gap:24px;
}
@media (min-width:900px){.cta-strip{grid-template-columns:1.7fr auto;align-items:center;padding:48px 52px;gap:36px}}
.cta-glow{
  position:absolute;width:420px;height:420px;right:-140px;top:-200px;border-radius:50%;
  background:var(--grad);filter:blur(95px);opacity:.45;
}
.cta-strip .cta-content{position:relative;z-index:2}
.cta-strip h2{color:#fff;font-size:clamp(20px,3vw,27px);font-weight:700}
.cta-strip p{margin-top:12px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.78);max-width:620px}
.cta-strip .cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-950);color:#C6C1D0;padding:60px 0 0;margin-top:8px}
.footer-grid{display:grid;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px}
.footer-brand .brand-mark{width:36px;height:36px;border-radius:11px;font-size:14px}
.footer-col p{margin-top:16px;font-size:14px;line-height:1.85;color:#9E98AC;max-width:340px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col ul a{font-size:14px;color:#B4AEC0;transition:color .2s ease,padding-left .2s ease}
.footer-col ul a:hover{color:var(--brand-400);padding-left:3px}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;font-size:13px;color:#8E8899;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --brand-400:#FF7A45; --brand-500:#F4551F; --brand-600:#D93E12;
  --accent-400:#8B5CF6; --accent-500:#6C3CE9;
  --mint:#10B981; --amber:#FFB020;
  --ink-950:#14101C; --ink-900:#17131F; --ink-600:#5B5566; --ink-400:#8E8896;
  --line:#EFE8E2; --bg:#FFF9F5; --surface:#FFFFFF;
  --grad:linear-gradient(120deg,#FF7A45 0%,#F4551F 42%,#6C3CE9 100%);
  --r-lg:24px; --r-md:16px; --r-sm:14px;
  --shadow-1:0 1px 2px rgba(23,19,31,.04),0 12px 32px -12px rgba(23,19,31,.12);
  --shadow-2:0 18px 44px -14px rgba(23,19,31,.20);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--ink-600);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;letter-spacing:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,opacity .2s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:0;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(244,85,31,.30);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1280px){.container{padding:0 32px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,249,245,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 24px -16px rgba(23,19,31,.35);}
.header-inner{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding-top:12px;padding-bottom:12px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink-900);font-size:17px;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;flex:none;
  background:var(--grad);color:#fff;display:grid;place-items:center;
  font-size:13px;font-weight:800;letter-spacing:.5px;
  box-shadow:0 8px 18px -10px rgba(244,85,31,.85);
}
.brand-text{white-space:nowrap;}
.chip-nav{
  display:flex;align-items:center;gap:4px;padding:4px;margin-left:auto;
  background:#F5EFEA;border-radius:999px;overflow-x:auto;scrollbar-width:none;
  -ms-overflow-style:none;max-width:100%;
}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;min-height:38px;padding:8px 16px;
  border-radius:999px;font-size:14px;color:var(--ink-900);white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.chip:hover{background:#EBE2DB;color:var(--brand-600);}
.chip.is-active{background:var(--grad);color:#fff;box-shadow:0 10px 20px -14px rgba(108,60,233,.9);}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;min-height:44px;
  padding:10px 22px;border-radius:999px;font-size:14px;font-weight:700;color:#fff;
  background:var(--grad);box-shadow:0 12px 24px -14px rgba(244,85,31,.95);
  transition:transform .2s ease,filter .2s ease,box-shadow .2s ease;
}
.header-cta:hover{transform:translateY(-1px) scale(1.02);filter:brightness(1.08);box-shadow:0 18px 32px -16px rgba(244,85,31,.95);}
.header-cta:active{transform:translateY(0) scale(.99);}
@media (max-width:1023px){
  .header-inner{padding-top:10px;padding-bottom:10px;}
  .chip-nav{order:3;width:100%;margin-left:0;}
  .header-cta{margin-left:auto;}
  .brand-text{font-size:15px;}
}
@media (max-width:480px){
  .brand-text{display:none;}
}

/* ============ Banner ============ */
.page-banner{
  position:relative;overflow:hidden;color:#fff;
  background:
    linear-gradient(115deg,rgba(20,16,28,.90) 0%,rgba(20,16,28,.74) 46%,rgba(108,60,233,.62) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding:64px 0 48px;
}
.page-banner::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(255,122,69,.55),rgba(108,60,233,0) 70%);
  pointer-events:none;
}
.page-banner .container{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  font-size:13px;color:#fff;margin-bottom:18px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--brand-400);flex:none;}
.page-banner h1{
  color:#fff;font-size:clamp(28px,4.6vw,44px);font-weight:800;line-height:1.25;max-width:900px;
}
.page-banner .lede{
  margin-top:16px;max-width:760px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.86);
}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.banner-pill{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;
  font-size:13px;color:#fff;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);
}
.banner-pill strong{font-variant-numeric:tabular-nums;color:#fff;font-weight:800;}
.anchor-bar{display:flex;overflow-x:auto;gap:8px;margin-top:28px;padding-bottom:4px;scrollbar-width:none;}
.anchor-bar::-webkit-scrollbar{display:none;}
.anchor-chip{
  display:inline-flex;align-items:center;min-height:40px;padding:8px 18px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);
  color:#fff;font-size:13.5px;white-space:nowrap;transition:background-color .2s ease,transform .2s ease;
}
.anchor-chip:hover{background:rgba(255,255,255,.24);transform:translateY(-1px);}

/* ============ 通用区块 ============ */
.section{padding:64px 0;}
@media (min-width:768px){.section{padding:88px 0;}}
.section-head{max-width:760px;margin-bottom:36px;}
.section-tag{
  display:inline-block;padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:700;
  color:var(--brand-600);background:rgba(244,85,31,.10);border:1px solid rgba(244,85,31,.20);margin-bottom:14px;
}
.section-head h2{font-size:clamp(22px,3vw,30px);font-weight:700;}
.section-head p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--ink-600);}

/* ============ 徽章矩阵 2×3 ============ */
.badge-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:700px){.badge-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.badge-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
.shield-card{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.shield-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,122,69,.40);}
.shield-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(16,185,129,.12);color:#0E9E6E;border:1px solid rgba(16,185,129,.28);
  font-size:20px;font-weight:800;
}
.shield-card h3{font-size:18px;font-weight:600;}
.shield-card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--ink-600);}
.shield-card .mini-tag{
  display:inline-block;margin-top:16px;padding:4px 12px;border-radius:999px;font-size:12px;
  color:#0E9E6E;background:rgba(16,185,129,.10);border:1px solid rgba(16,185,129,.24);
}

/* ============ 数据统计带 ============ */
.stat-band{
  background:var(--ink-950);border-radius:var(--r-lg);padding:8px 20px;margin-top:8px;
  display:grid;gap:4px;grid-template-columns:repeat(2,1fr);
  position:relative;overflow:hidden;
}
.stat-band::before{
  content:"";position:absolute;left:-80px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,60,233,.45),rgba(108,60,233,0) 70%);pointer-events:none;
}
@media (min-width:900px){.stat-band{grid-template-columns:repeat(4,1fr);padding:10px 12px;}}
.stat-item{position:relative;z-index:2;padding:22px 18px;text-align:left;}
.stat-item + .stat-item{border-left:0;}
@media (min-width:900px){.stat-item + .stat-item{border-left:1px solid rgba(255,255,255,.12);}}
.stat-num{
  font-size:clamp(22px,3.2vw,30px);font-weight:800;color:#fff;font-variant-numeric:tabular-nums;
  background:linear-gradient(120deg,#FF7A45,#8B5CF6);-webkit-background-clip:text;background-clip:text;color:transparent;
  -webkit-text-fill-color:transparent;
}
.stat-label{margin-top:8px;font-size:13.5px;color:rgba(255,255,255,.72);line-height:1.7;}

/* ============ 横向对比条 ============ */
.compare-bar{
  display:grid;grid-template-columns:1fr;gap:0;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;background:var(--surface);box-shadow:var(--shadow-1);
}
@media (min-width:860px){.compare-bar{grid-template-columns:1fr 1px 1fr;}}
.compare-col{padding:28px 26px;}
.compare-col.good{background:linear-gradient(120deg,rgba(16,185,129,.08),rgba(16,185,129,0));}
.compare-col.risk{background:linear-gradient(120deg,rgba(255,176,32,.10),rgba(255,176,32,0));}
.compare-divider{background:var(--line);}
@media (max-width:859px){.compare-divider{height:1px;width:100%;}}
.compare-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:12.5px;font-weight:700;margin-bottom:16px;
}
.compare-col.good .compare-tag{color:#0E9E6E;background:rgba(16,185,129,.12);border:1px solid rgba(16,185,129,.28);}
.compare-col.risk .compare-tag{color:#9A6200;background:rgba(255,176,32,.16);border:1px solid rgba(255,176,32,.34);}
.compare-col h3{font-size:18px;font-weight:600;margin-bottom:12px;}
.compare-list li{
  position:relative;padding-left:22px;font-size:14.5px;line-height:1.85;color:var(--ink-600);margin-bottom:10px;
}
.compare-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:3px;
}
.compare-col.good .compare-list li::before{background:var(--mint);}
.compare-col.risk .compare-list li::before{background:var(--amber);}

/* ============ 信息核对四步 ============ */
.flow-grid{display:grid;gap:18px;grid-template-columns:1fr;}
@media (min-width:640px){.flow-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.flow-grid{grid-template-columns:repeat(4,1fr);}}
.flow-card{
  position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 22px 24px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.flow-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,122,69,.40);}
.flow-num{
  width:40px;height:40px;border-radius:999px;display:grid;place-items:center;font-weight:800;font-size:16px;
  color:var(--brand-500);background:#fff;border:2px solid transparent;margin-bottom:16px;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  font-variant-numeric:tabular-nums;
}
.flow-card h3{font-size:17px;font-weight:600;}
.flow-card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--ink-600);}
.flow-line{
  display:none;
}
@media (min-width:1024px){
  .flow-line{
    display:block;height:1px;border-top:1px dashed rgba(244,85,31,.45);margin:12px 0 24px;
  }
}

/* ============ 图文重点区 ============ */
.media-block{
  display:grid;gap:28px;grid-template-columns:1fr;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);overflow:hidden;
}
@media (min-width:920px){.media-block{grid-template-columns:5fr 6fr;}}
.media-figure{
  position:relative;min-height:260px;height:100%;
  background:linear-gradient(120deg,rgba(255,122,69,.85),rgba(108,60,233,.85));
}
.media-figure img{width:100%;height:100%;min-height:260px;object-fit:cover;}
.media-body{padding:28px 26px 32px;}
@media (min-width:920px){.media-body{padding:40px 40px 40px 8px;}}
.media-body h2{font-size:clamp(20px,2.6vw,26px);font-weight:700;}
.media-body p{margin-top:14px;font-size:15px;line-height:1.9;color:var(--ink-600);}
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;font-size:14.5px;line-height:1.8;color:var(--ink-600);
  background:#FFFCFA;border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 14px;
}
.check-list .ck{
  flex:none;width:22px;height:22px;border-radius:8px;display:grid;place-items:center;
  background:rgba(16,185,129,.14);color:#0E9E6E;font-size:12px;font-weight:800;margin-top:2px;
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(255,122,69,.35);}
.faq-item.is-open{border-color:rgba(255,122,69,.45);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  background:none;border:0;cursor:pointer;padding:20px 20px;min-height:44px;
}
.faq-idx{
  flex:none;width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-size:14px;font-weight:800;color:#fff;background:var(--grad);font-variant-numeric:tabular-nums;
}
.faq-q span.qtext{flex:1;font-size:16px;font-weight:600;color:var(--ink-900);line-height:1.6;}
.faq-arrow{
  flex:none;width:24px;height:24px;color:var(--ink-400);transition:transform .2s ease,color .2s ease;
  display:grid;place-items:center;font-size:14px;
}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);color:var(--brand-500);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .25s ease;
}
.faq-a p{padding:0 20px 22px 74px;font-size:15px;line-height:1.8;color:var(--ink-600);}
@media (max-width:560px){.faq-a p{padding-left:20px;}}

/* ============ CTA 条 ============ */
.cta-strip{
  position:relative;overflow:hidden;border-radius:var(--r-lg);background:var(--ink-950);
  padding:40px 26px;display:grid;gap:24px;align-items:center;
}
@media (min-width:860px){.cta-strip{grid-template-columns:1fr auto;padding:48px 44px;}}
.cta-strip::before{
  content:"";position:absolute;right:-100px;top:-140px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,69,.55),rgba(108,60,233,0) 70%);pointer-events:none;
}
.cta-strip h2{color:#fff;font-size:clamp(20px,2.8vw,28px);font-weight:700;position:relative;z-index:2;}
.cta-strip p{margin-top:12px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.76);max-width:640px;position:relative;z-index:2;}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 30px;
  border-radius:999px;font-size:15px;font-weight:700;color:#fff;background:var(--grad);
  box-shadow:0 16px 34px -18px rgba(244,85,31,.95);
  transition:transform .2s ease,filter .2s ease,box-shadow .2s ease;position:relative;z-index:2;
}
.btn-primary:hover{transform:translateY(-2px) scale(1.02);filter:brightness(1.08);box-shadow:0 22px 40px -20px rgba(244,85,31,1);}
.btn-primary:active{transform:translateY(0) scale(.99);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 24px;
  border-radius:999px;font-size:14.5px;font-weight:600;color:var(--brand-600);
  background:rgba(244,85,31,.08);border:1px solid rgba(244,85,31,.26);
  transition:background-color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:rgba(244,85,31,.16);transform:translateY(-1px);}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-950);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:8px;}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr;}
@media (min-width:720px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:13px;font-weight:800;flex:none;
}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:380px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col ul a:hover{color:var(--brand-400);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.50);
}
@media (max-width:767px){
  .footer-col h4{cursor:pointer;display:flex;justify-content:space-between;align-items:center;margin-bottom:0;padding:6px 0;}
  .footer-col h4::after{content:"＋";font-size:14px;color:rgba(255,255,255,.55);}
  .footer-col.is-open h4::after{content:"－";}
  .footer-col ul{display:none;padding-top:12px;}
  .footer-col.is-open ul{display:block;}
  .footer-col p{display:block;margin-top:14px;}
}

/* roulang page: category4 */
:root{
  --brand-500:#F4551F;
  --brand-600:#D93E12;
  --brand-400:#FF7A45;
  --accent-500:#6C3CE9;
  --accent-400:#8B5CF6;
  --mint:#10B981;
  --amber:#FFB020;
  --ink-950:#14101C;
  --ink-900:#17131F;
  --ink-600:#5B5566;
  --ink-400:#8E8896;
  --line:#EFE8E2;
  --bg:#FFF9F5;
  --surface:#FFFFFF;
  --grad:linear-gradient(120deg,#FF7A45 0%,#F4551F 42%,#6C3CE9 100%);
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:14px;
  --shadow:0 1px 2px rgba(23,19,31,.04),0 12px 32px -12px rgba(23,19,31,.12);
  --shadow-hover:0 18px 44px -14px rgba(23,19,31,.20);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:0;font-weight:700;line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(244,85,31,.30);border-radius:8px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 16px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,filter .2s ease;
  white-space:nowrap;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px -12px rgba(244,85,31,.75);}
.btn-primary:hover{filter:brightness(1.08);transform:scale(1.02);box-shadow:0 16px 32px -14px rgba(108,60,233,.55);}
.btn-primary:active{transform:scale(.99);}
.btn-ghost{background:#fff;color:var(--ink-900);border:1px solid var(--line);}
.btn-ghost:hover{background:#FFF1E9;border-color:rgba(255,122,69,.45);color:var(--brand-600);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--brand-600);box-shadow:0 12px 28px -14px rgba(0,0,0,.45);}
.btn-light:hover{background:#FFF1E9;transform:scale(1.02);}
.btn-outline-light{background:rgba(255,255,255,.10);color:#fff;border:1px solid rgba(255,255,255,.45);backdrop-filter:blur(6px);}
.btn-outline-light:hover{background:rgba(255,255,255,.22);transform:translateY(-2px);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,249,245,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px -14px rgba(23,19,31,.35);background:rgba(255,255,255,.96);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);
  color:#fff;font-weight:800;font-size:14px;display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 10px 20px -12px rgba(244,85,31,.85);letter-spacing:.5px;
}
.brand-text{font-size:17px;font-weight:800;color:var(--ink-900);letter-spacing:0;}
.chip-nav{
  display:none;align-items:center;gap:4px;
  background:#F5EFEA;border-radius:999px;padding:4px;
}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:36px;padding:0 16px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--ink-900);
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.chip:hover{background:rgba(255,255,255,.85);color:var(--brand-600);}
.chip.is-active{background:var(--grad);color:#fff;box-shadow:0 8px 18px -10px rgba(108,60,233,.7);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-menu{border-top:1px solid var(--line);background:#fff;padding:14px 0 18px;}
.mobile-menu .container{display:flex;flex-direction:column;gap:8px;}
.mobile-menu a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 16px;border-radius:14px;background:#FFF9F5;
  font-size:15px;font-weight:600;color:var(--ink-900);border:1px solid var(--line);
}
.mobile-menu a:hover{background:#FFF1E9;border-color:rgba(255,122,69,.45);color:var(--brand-600);}
.mobile-menu a.is-active{background:var(--grad);color:#fff;border-color:transparent;}
@media (min-width:1024px){
  .chip-nav{display:flex;}
  .nav-toggle{display:none;}
  .mobile-menu{display:none !important;}
}

/* ============ 页面横幅 ============ */
.page-banner{
  position:relative;overflow:hidden;
  background-image:linear-gradient(120deg,rgba(20,16,28,.88) 0%,rgba(20,16,28,.78) 42%,rgba(108,60,233,.72) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  padding:56px 0 64px;
}
.page-banner::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,69,.45),rgba(255,122,69,0) 68%);pointer-events:none;
}
.page-banner .container{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  color:#FFE6DA;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
}
.page-banner h1{
  color:#fff;font-size:clamp(28px,4.6vw,44px);font-weight:800;line-height:1.25;
  margin:18px 0 14px;max-width:860px;letter-spacing:0;
}
.page-banner .banner-sub{color:rgba(255,255,255,.86);font-size:16px;max-width:720px;}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.banner-meta .pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 14px;border-radius:999px;font-size:13px;font-weight:600;
  color:#fff;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);
}
.banner-meta .pill i{color:var(--brand-400);}

/* ============ 搜索框 ============ */
.search-panel{
  margin-top:28px;background:rgba(255,255,255,.96);border-radius:20px;padding:14px;
  box-shadow:0 24px 48px -22px rgba(0,0,0,.55);max-width:760px;
}
.search-form{display:flex;flex-direction:column;gap:10px;}
.search-input-wrap{position:relative;flex:1;}
.search-input-wrap i{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  color:var(--ink-400);font-size:15px;
}
.search-input{
  width:100%;min-height:52px;padding:0 16px 0 44px;border-radius:14px;
  border:1px solid var(--line);background:#FFFDFB;font-size:15px;color:var(--ink-900);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-input::placeholder{color:var(--ink-400);}
.search-input:focus{border-color:var(--brand-400);box-shadow:0 0 0 3px rgba(244,85,31,.16);outline:none;}
.search-hint{margin-top:10px;font-size:12.5px;color:var(--ink-400);}
@media (min-width:640px){
  .search-form{flex-direction:row;align-items:center;}
  .search-form .btn{min-height:52px;padding:0 26px;}
}

/* ============ 通用板块 ============ */
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:80px 0;}}
.section-head{max-width:760px;margin-bottom:28px;}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--brand-600);text-transform:none;margin-bottom:10px;
}
.section-head .kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad);}
.section-head h2{font-size:clamp(22px,3.2vw,30px);font-weight:700;margin-bottom:12px;}
.section-head p{font-size:15.5px;color:var(--ink-600);}

/* ============ 筛选条 ============ */
.filter-wrap{
  position:sticky;top:72px;z-index:40;background:rgba(255,249,245,.96);
  backdrop-filter:blur(8px);padding:12px 0;border-bottom:1px solid var(--line);
  margin-bottom:26px;
}
.filter-bar{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none;}
.filter-bar::-webkit-scrollbar{display:none;}
.filter-chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:7px;
  min-height:40px;padding:0 18px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--ink-900);
  font-size:14px;font-weight:600;transition:all .2s ease;
}
.filter-chip:hover{border-color:rgba(255,122,69,.5);color:var(--brand-600);background:#FFF6F0;}
.filter-chip.is-active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 10px 22px -12px rgba(108,60,233,.7);}
.filter-chip .count{
  font-size:12px;font-variant-numeric:tabular-nums;padding:1px 7px;border-radius:999px;
  background:#F5EFEA;color:var(--ink-600);
}
.filter-chip.is-active .count{background:rgba(255,255,255,.24);color:#fff;}

/* ============ FAQ 手风琴 ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--shadow);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.faq-item:hover{border-color:rgba(255,122,69,.40);box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.faq-item.is-open{border-color:rgba(255,122,69,.55);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:14px;text-align:left;
  padding:18px 20px;min-height:64px;
}
.faq-num{
  flex:0 0 auto;width:34px;height:34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;color:var(--brand-600);
  background:linear-gradient(#fff,#fff) padding-box,var(--grad) border-box;
  border:1.5px solid transparent;font-variant-numeric:tabular-nums;
}
.faq-text{flex:1;font-size:16px;font-weight:600;color:var(--ink-900);line-height:1.6;padding-top:3px;}
.faq-arrow{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:#F5EFEA;color:var(--ink-600);font-size:12px;margin-top:2px;
  transition:transform .25s ease,background-color .25s ease,color .25s ease;
}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);background:var(--grad);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;}
.faq-a-inner{padding:0 20px 20px 68px;font-size:15px;line-height:1.85;color:var(--ink-600);}
.faq-a-inner strong{color:var(--ink-900);font-weight:600;}
.faq-a-inner ul{margin-top:10px;display:flex;flex-direction:column;gap:6px;}
.faq-a-inner li{position:relative;padding-left:16px;}
.faq-a-inner li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand-400);}
.faq-empty{
  border:1.5px dashed rgba(142,136,150,.5);border-radius:18px;background:#fff;
  padding:48px 20px;text-align:center;color:var(--ink-400);
}
.faq-empty i{font-size:26px;color:var(--brand-400);display:block;margin-bottom:12px;}
@media (max-width:639px){
  .faq-a-inner{padding-left:20px;}
  .faq-text{font-size:15px;}
}

/* ============ 提示横条 ============ */
.tip-band{
  display:flex;flex-direction:column;gap:16px;
  background:linear-gradient(120deg,#FFF3EC 0%,#FFF9F5 60%,#F4F0FF 100%);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 24px;
}
.tip-band h3{font-size:19px;margin-bottom:8px;}
.tip-band .tip-list{display:grid;gap:12px;grid-template-columns:1fr;}
.tip-band .tip-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-600);}
.tip-band .tip-list i{color:var(--brand-500);margin-top:5px;font-size:13px;}
@media (min-width:768px){
  .tip-band{flex-direction:row;align-items:center;justify-content:space-between;gap:32px;padding:32px;}
  .tip-band > div{flex:1;}
  .tip-band .tip-list{grid-template-columns:1fr 1fr;}
}

/* ============ 双栏链接卡 ============ */
.link-cards{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:900px){.link-cards{grid-template-columns:1fr 1fr;gap:24px;}}
.link-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.link-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,122,69,.40);}
.link-card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--grad);}
.link-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.link-card:hover .link-card-media img{transform:scale(1.03);}
.link-card-media .tag{
  position:absolute;left:14px;top:14px;padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.94);color:var(--brand-600);font-size:12.5px;font-weight:700;
}
.link-card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.link-card-body h3{font-size:20px;}
.link-card-body p{font-size:15px;color:var(--ink-600);}
.link-list{display:flex;flex-direction:column;gap:2px;margin-top:2px;}
.link-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:44px;padding:8px 0;border-bottom:1px dashed var(--line);
  font-size:14.5px;font-weight:600;color:var(--ink-900);
}
.link-list a:last-child{border-bottom:0;}
.link-list a:hover{color:var(--brand-600);}
.link-list a i{color:var(--brand-400);font-size:12px;transition:transform .2s ease;}
.link-list a:hover i{transform:translateX(3px);}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:var(--ink-950);padding:34px 26px;
  display:flex;flex-direction:column;gap:22px;
}
.cta-band::before{
  content:"";position:absolute;left:-80px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,60,233,.55),rgba(108,60,233,0) 70%);pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-100px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(244,85,31,.50),rgba(244,85,31,0) 70%);pointer-events:none;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(21px,3vw,27px);margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media (min-width:900px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;gap:40px;padding:42px 44px;}
  .cta-actions{flex:0 0 auto;}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-950);color:rgba(255,255,255,.72);padding:56px 0 26px;margin-top:0;}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff;font-weight:800;font-size:17px;}
.footer-brand .brand-mark{width:36px;height:36px;font-size:13px;}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:2px;}
.footer-col li a{
  display:inline-flex;align-items:center;min-height:36px;font-size:14px;
  color:rgba(255,255,255,.68);
}
.footer-col li a:hover{color:var(--brand-400);}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-direction:column;gap:8px;font-size:13px;color:rgba(255,255,255,.52);
}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:18px;bottom:18px;z-index:70;
  width:46px;height:46px;border-radius:50%;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 14px 30px -14px rgba(108,60,233,.85);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{filter:brightness(1.08);}