/* roulang page: index */
:root{
  --ink-950:#12172E;
  --ink-800:#1E2450;
  --ink-600:#3A4270;
  --ink-400:#6B7292;
  --paper:#FAF9F6;
  --paper-2:#F1EFE9;
  --jade:#2F8F8A;
  --jade-deep:#1F6B67;
  --star:#E4B75C;
  --line:#E2DFD8;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(30,36,80,.06);
  --shadow-lift:0 8px 24px rgba(30,36,80,.08);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.015em;
  color:var(--ink-600);
  background:var(--paper);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;}
h1,h2,h3,h4{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  color:var(--ink-800);
  margin:0;
  font-weight:600;
  letter-spacing:.01em;
}
h1{font-size:clamp(30px,3.6vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,2.4vw,32px);line-height:1.35;}
h3{font-size:20px;line-height:1.5;}
h4{font-size:17px;line-height:1.5;}
p{margin:0;}
ul,ol{margin:0;}
::selection{background:rgba(47,143,138,.22);}
:focus-visible{outline:2px solid var(--jade);outline-offset:2px;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--paper-2);}
::-webkit-scrollbar-thumb{background:#CFCBC2;border-radius:999px;border:3px solid var(--paper-2);}
::-webkit-scrollbar-thumb:hover{background:#B9B4A9;}

.nav-item{
  display:flex;align-items:center;justify-content:space-between;
  height:44px;padding:0 12px 0 14px;border-radius:10px;
  font-size:15px;color:rgba(255,255,255,.72);
  transition:background .18s ease-out,color .18s ease-out;
}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff;}
.nav-item.is-active{background:rgba(255,255,255,.08);color:#fff;box-shadow:inset 3px 0 0 var(--jade);}
.nav-item i{font-size:12px;opacity:.5;}
.nav-item.is-active i{opacity:.9;color:var(--star);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,border-color .18s ease-out,filter .18s ease-out;
}
.btn-primary{background:var(--ink-800);color:#fff;}
.btn-primary:hover{background:var(--ink-950);transform:translateY(-1px);}
.btn-ghost{border-color:var(--ink-800);color:var(--ink-800);background:transparent;}
.btn-ghost:hover{background:rgba(30,36,80,.06);}
.btn-star{background:var(--star);color:var(--ink-950);}
.btn-star:hover{filter:brightness(1.06);transform:translateY(-1px);}
.btn-outline-light{border-color:rgba(255,255,255,.45);color:#fff;background:transparent;}
.btn-outline-light:hover{background:rgba(255,255,255,.1);}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.card:hover{transform:translateY(-2px);border-color:rgba(30,36,80,.12);box-shadow:var(--shadow-lift);}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;line-height:1.6;
  background:var(--paper-2);color:var(--ink-600);letter-spacing:.02em;
}
.badge-star{background:var(--star);color:var(--ink-950);}

.link-jade{color:var(--jade);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.link-jade:hover{color:var(--jade-deep);}

.sec{padding:56px 0;}
@media (min-width:768px){.sec{padding:72px 0;}}
@media (min-width:1024px){.sec{padding:96px 0;}}

.star-dots{position:relative;}
.star-dots::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.7;
  background-image:
    radial-gradient(1.4px 1.4px at 10% 24%, rgba(228,183,92,.6), transparent 100%),
    radial-gradient(1.2px 1.2px at 26% 68%, rgba(228,183,92,.45), transparent 100%),
    radial-gradient(1.6px 1.6px at 44% 16%, rgba(255,255,255,.5), transparent 100%),
    radial-gradient(1.2px 1.2px at 62% 78%, rgba(228,183,92,.4), transparent 100%),
    radial-gradient(1.4px 1.4px at 78% 32%, rgba(255,255,255,.45), transparent 100%),
    radial-gradient(1.2px 1.2px at 90% 62%, rgba(228,183,92,.5), transparent 100%);
}

.steps{list-style:none;padding:0;position:relative;}
.steps::before{content:"";position:absolute;left:28px;top:20px;bottom:20px;width:1px;background:rgba(255,255,255,.14);}
.step{position:relative;display:flex;gap:24px;padding-bottom:36px;}
.step:last-child{padding-bottom:0;}
.step-no{
  flex:0 0 56px;width:56px;height:56px;border-radius:999px;
  border:1px solid rgba(255,255,255,.2);background:var(--ink-950);
  display:flex;align-items:center;justify-content:center;
  font-family:"Noto Serif SC",serif;font-size:17px;color:var(--star);
  position:relative;z-index:1;
}

.cms-row{
  display:flex;gap:18px;align-items:flex-start;
  padding:22px 4px;border-bottom:1px solid var(--line);
  transition:background .18s ease-out;
}
.cms-row:hover{background:rgba(241,239,233,.7);}
.cms-row:first-child{border-top:1px solid var(--line);}
.cms-index{
  flex:0 0 42px;font-family:"Noto Serif SC",serif;font-size:15px;
  color:var(--ink-400);padding-top:2px;letter-spacing:.06em;
}

.faq-list{max-width:820px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:14px 2px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink-800);line-height:1.6;
}
.faq-q:hover{color:var(--jade-deep);}
.faq-icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:999px;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:15px;color:var(--ink-600);transition:background .18s ease-out,color .18s ease-out;
}
.faq-item.is-open .faq-icon{background:var(--ink-800);color:#fff;border-color:var(--ink-800);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out;}
.faq-item.is-open .faq-a{max-height:500px;}
.faq-a-inner{margin:0 0 18px;padding:18px 20px;background:var(--paper-2);border-radius:12px;font-size:15px;line-height:1.85;color:var(--ink-600);}

.field{
  width:100%;height:48px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink-800);
  font-size:15px;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field::placeholder{color:#9AA0B5;}
.field:focus{outline:none;border-color:var(--jade);box-shadow:0 0 0 3px rgba(47,143,138,.15);}

.no-scrollbar::-webkit-scrollbar{display:none;}
.no-scrollbar{-ms-overflow-style:none;scrollbar-width:none;}

.foot-link{color:rgba(255,255,255,.66);transition:color .18s ease-out;}
.foot-link:hover{color:var(--star);text-decoration:underline;text-underline-offset:3px;}

.logo-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:linear-gradient(135deg,var(--jade) 0%,var(--ink-800) 100%);
  display:flex;align-items:center;justify-content:center;
  color:var(--star);font-size:15px;
}

/* roulang page: category1 */
:root{
    --ink-950:#12172E;
    --ink-800:#1E2450;
    --ink-600:#3A4270;
    --ink-400:#6B7292;
    --paper:#FAF9F6;
    --paper-2:#F1EFE9;
    --jade:#2F8F8A;
    --jade-deep:#1F6B67;
    --star:#E4B75C;
    --line:#E2DFD8;
    --card-r:14px;
    --btn-r:10px;
    --img-r:12px;
    --shadow-soft:0 1px 2px rgba(30,36,80,.06);
    --shadow-hover:0 8px 24px rgba(30,36,80,.08);
    --gap-section:96px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;scroll-padding-top:80px;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink-600);
    font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
    font-size:17px;
    line-height:1.9;
    letter-spacing:.015em;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,.font-serif{
    font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
    color:var(--ink-800);
    letter-spacing:.01em;
  }
  p{margin:0 0 1.1em;}
  a{color:var(--jade);text-decoration:none;text-underline-offset:3px;}
  a:hover{color:var(--jade-deep);}
  img{max-width:100%;display:block;}
  button,input{font:inherit;}
  ul,ol{padding-left:1.15em;}
  :focus-visible{outline:2px solid var(--jade);outline-offset:2px;border-radius:4px;}

  .skip-link{
    position:absolute;left:-9999px;top:0;background:var(--ink-950);color:#fff;
    padding:10px 16px;border-radius:0 0 10px 0;z-index:200;
  }
  .skip-link:focus{left:0;}

  .page-h1{font-size:clamp(30px,3.6vw,46px);line-height:1.25;font-weight:600;letter-spacing:.01em;}
  .page-h2{font-size:clamp(24px,2.4vw,32px);line-height:1.35;font-weight:600;}
  .page-h3{font-size:20px;line-height:1.5;font-weight:600;}
  .page-h4{font-size:17px;line-height:1.5;font-weight:600;}

  .logo-mark{
    width:34px;height:34px;flex:0 0 34px;border-radius:10px;
    display:inline-flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,var(--star) 0%,var(--jade) 100%);
    color:var(--ink-950);font-size:14px;
  }

  .nav-group-title{
    font-size:12px;letter-spacing:.12em;color:var(--ink-400);
    text-transform:none;padding:0 14px;margin:26px 0 10px;
  }
  .nav-item{
    position:relative;display:flex;align-items:center;height:44px;
    padding:0 14px;border-radius:10px;font-size:14.5px;
    color:rgba(255,255,255,.72);transition:background .18s ease,color .18s ease;
  }
  .nav-item:hover{background:rgba(255,255,255,.06);color:#fff;}
  .nav-item.active{background:rgba(255,255,255,.08);color:#fff;}
  .nav-item.active::before{
    content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
    border-radius:999px;background:var(--jade);
  }
  .nav-item i{width:18px;font-size:13px;color:rgba(255,255,255,.5);}
  .nav-item.active i{color:var(--star);}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--btn-r);
    font-size:15px;font-weight:500;line-height:1;cursor:pointer;
    border:1px solid transparent;transition:all .18s ease-out;
    text-decoration:none;
  }
  .btn-primary{background:var(--ink-800);color:#fff;}
  .btn-primary:hover{background:var(--ink-950);color:#fff;transform:translateY(-1px);}
  .btn-ghost{background:transparent;color:var(--ink-800);border-color:rgba(30,36,80,.35);}
  .btn-ghost:hover{background:rgba(30,36,80,.06);color:var(--ink-800);}
  .btn-star{background:var(--star);color:var(--ink-950);}
  .btn-star:hover{background:#eec575;color:var(--ink-950);transform:translateY(-1px);}
  .btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.35);}
  .btn-outline-light:hover{background:rgba(255,255,255,.1);color:#fff;}
  .btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}

  .text-link{
    color:var(--jade);text-decoration:underline;text-decoration-thickness:1px;
    text-underline-offset:3px;font-size:15px;
  }
  .text-link:hover{color:var(--jade-deep);}
  .text-link i{font-size:12px;margin-left:4px;}

  .card{
    background:#fff;border:1px solid var(--line);border-radius:var(--card-r);
    transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
  }
  .card:hover{transform:translateY(-2px);border-color:rgba(30,36,80,.12);box-shadow:var(--shadow-hover);}

  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;
    border-radius:999px;background:var(--paper-2);color:var(--ink-600);
    font-size:12px;line-height:1;letter-spacing:.02em;
  }
  .badge-star{background:var(--star);color:var(--ink-950);}

  .entry{
    display:grid;grid-template-columns:260px 1fr;gap:24px;
    background:#fff;border:1px solid var(--line);border-radius:var(--card-r);
    padding:20px;transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
  }
  .entry:hover{transform:translateY(-2px);border-color:rgba(30,36,80,.12);box-shadow:var(--shadow-hover);}
  .entry-media{border-radius:var(--img-r);overflow:hidden;background:var(--paper-2);aspect-ratio:3/2;}
  .entry-media img{width:100%;height:100%;object-fit:cover;}
  .entry h3{margin:10px 0 8px;font-size:19px;line-height:1.5;}
  .entry p.sum{margin:0 0 12px;font-size:15px;line-height:1.8;color:var(--ink-600);}
  .entry-points{list-style:none;padding:0;margin:0 0 14px;display:grid;gap:7px;}
  .entry-points li{position:relative;padding-left:18px;font-size:14px;line-height:1.75;color:var(--ink-400);}
  .entry-points li::before{
    content:"";position:absolute;left:2px;top:10px;width:6px;height:6px;
    border-radius:999px;background:var(--jade);opacity:.75;
  }

  .anchor-nav{list-style:none;margin:0;padding:0;display:grid;gap:4px;}
  .anchor-nav a{
    display:flex;align-items:center;gap:10px;height:40px;padding:0 12px;
    border-radius:10px;font-size:14.5px;color:var(--ink-600);
    border-left:2px solid transparent;transition:all .18s ease-out;
  }
  .anchor-nav a:hover{background:var(--paper-2);color:var(--ink-800);}
  .anchor-nav a.is-current{
    background:var(--paper-2);color:var(--ink-800);font-weight:600;
    border-left:2px solid var(--star);
  }
  .anchor-nav span.num{font-size:12px;color:var(--ink-400);letter-spacing:.06em;}

  .checklist{list-style:none;padding:0;margin:0;display:grid;gap:14px;}
  .checklist li{
    display:grid;grid-template-columns:28px 1fr;gap:14px;align-items:start;
    background:#fff;border:1px solid var(--line);border-radius:var(--card-r);padding:18px 20px;
  }
  .checklist .ico{
    width:28px;height:28px;border-radius:999px;display:flex;align-items:center;justify-content:center;
    background:rgba(47,143,138,.12);color:var(--jade-deep);font-size:12px;
  }
  .checklist strong{display:block;color:var(--ink-800);font-size:16px;margin-bottom:4px;}
  .checklist p{margin:0;font-size:14.5px;line-height:1.8;color:var(--ink-400);}

  .faq-item{border:1px solid var(--line);border-radius:12px;background:#fff;overflow:hidden;}
  .faq-item + .faq-item{margin-top:12px;}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:56px;padding:12px 20px;background:transparent;border:0;cursor:pointer;
    text-align:left;font-size:16px;font-weight:600;color:var(--ink-800);line-height:1.6;
  }
  .faq-q:hover{color:var(--ink-950);}
  .faq-icon{
    flex:0 0 26px;width:26px;height:26px;border-radius:999px;
    display:flex;align-items:center;justify-content:center;font-size:12px;
    background:var(--paper-2);color:var(--ink-600);transition:transform .2s ease,background .2s ease;
  }
  .faq-item.open .faq-icon{background:var(--jade);color:#fff;transform:rotate(45deg);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;background:var(--paper-2);}
  .faq-a-inner{padding:18px 20px;font-size:15px;line-height:1.9;color:var(--ink-600);}

  .foot-link{color:rgba(255,255,255,.55);text-decoration:none;transition:color .18s ease;}
  .foot-link:hover{color:var(--star);text-decoration:underline;text-underline-offset:3px;}

  .starfield{position:relative;overflow:hidden;}
  .starfield::after{
    content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
    background-image:
      radial-gradient(1.4px 1.4px at 12% 24%, rgba(228,183,92,.85) 50%, transparent 51%),
      radial-gradient(1.2px 1.2px at 32% 68%, rgba(255,255,255,.7) 50%, transparent 51%),
      radial-gradient(1.6px 1.6px at 58% 18%, rgba(228,183,92,.7) 50%, transparent 51%),
      radial-gradient(1.1px 1.1px at 74% 52%, rgba(255,255,255,.6) 50%, transparent 51%),
      radial-gradient(1.5px 1.5px at 88% 30%, rgba(228,183,92,.6) 50%, transparent 51%),
      radial-gradient(1.2px 1.2px at 46% 84%, rgba(255,255,255,.5) 50%, transparent 51%);
  }
  .orbit-line{
    height:1px;border:0;margin:0;
    background:linear-gradient(90deg,rgba(47,143,138,0) 0%,rgba(47,143,138,.85) 50%,rgba(47,143,138,0) 100%);
  }

  ::-webkit-scrollbar{width:10px;height:10px;}
  ::-webkit-scrollbar-track{background:var(--paper-2);}
  ::-webkit-scrollbar-thumb{background:rgba(58,66,112,.28);border-radius:999px;}
  ::-webkit-scrollbar-thumb:hover{background:rgba(58,66,112,.45);}

  @media (max-width:1023px){
    :root{--gap-section:72px;}
  }
  @media (max-width:767px){
    :root{--gap-section:56px;}
    body{font-size:16px;}
    .entry{grid-template-columns:1fr;gap:16px;padding:16px;}
    .entry-media{aspect-ratio:16/9;}
  }

/* roulang page: article */
:root{
  --ink-950:#12172E;
  --ink-800:#1E2450;
  --ink-600:#3A4270;
  --ink-400:#6B7292;
  --paper:#FAF9F6;
  --paper-2:#F1EFE9;
  --jade:#2F8F8A;
  --jade-deep:#1F6B67;
  --star:#E4B75C;
  --line:#E2DFD8;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:0 1px 2px rgba(30,36,80,.06);
  --shadow-hover:0 8px 24px rgba(30,36,80,.08);
  --section:96px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-600);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.015em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s ease-out}
button{font:inherit;cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--jade);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--ink-800);margin:0;font-weight:600;letter-spacing:.01em}
::selection{background:rgba(47,143,138,.18);color:var(--ink-950)}

/* 滚动条 */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(107,114,146,.32);border-radius:999px;border:2px solid transparent;background-clip:padding-box}
::-webkit-scrollbar-thumb:hover{background:rgba(107,114,146,.55);background-clip:padding-box}

/* 品牌标记 */
.logo-mark{
  width:32px;height:32px;flex:0 0 32px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;
  background:rgba(47,143,138,.18);
  border:1px solid rgba(228,183,92,.4);
  color:var(--star);
  font-size:13px;
}

/* 侧栏导航 */
.nav-group{
  font-size:12px;letter-spacing:.12em;color:var(--ink-400);
  margin:0 0 10px;padding:0 14px;line-height:1.6;
}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:10px;
  min-height:44px;padding:0 14px;margin-bottom:4px;
  border-radius:var(--radius-btn);
  color:rgba(255,255,255,.7);
  font-size:14px;line-height:1.4;
  transition:background .18s ease-out,color .18s ease-out;
}
.nav-item i{width:16px;text-align:center;font-size:13px;opacity:.75}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-item.is-active{background:rgba(255,255,255,.08);color:#fff}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--jade);
}
.nav-item.is-active i{opacity:1;color:var(--star)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;line-height:1;
  letter-spacing:.02em;
  transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--ink-800);color:#fff}
.btn-primary:hover{background:var(--ink-950);transform:translateY(-1px)}
.btn-ghost{border:1px solid rgba(30,36,80,.28);color:var(--ink-800)}
.btn-ghost:hover{background:rgba(30,36,80,.06)}
.btn-star{background:var(--star);color:var(--ink-950)}
.btn-star:hover{background:#efc86f;transform:translateY(-1px)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}

/* 链接 */
.link-jade{
  color:var(--jade);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:3px;
}
.link-jade:hover{color:var(--jade-deep)}
.foot-link{
  color:rgba(255,255,255,.6);
  text-decoration:none;
  transition:color .18s ease-out;
}
.foot-link:hover{color:var(--star);text-decoration:underline;text-underline-offset:3px}

/* 卡片与徽章 */
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
a.card:hover,a.card:focus-visible{
  transform:translateY(-2px);
  border-color:rgba(30,36,80,.12);
  box-shadow:var(--shadow-hover);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 12px;border-radius:999px;
  background:var(--paper-2);color:var(--ink-600);
  font-size:13px;line-height:1.6;white-space:nowrap;
}
.badge-star{
  background:var(--star);color:var(--ink-950);
  font-size:12px;letter-spacing:.04em;
}
.chip{
  display:inline-flex;align-items:center;
  min-height:34px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:#fff;
  color:var(--ink-600);font-size:13.5px;
  transition:border-color .18s ease-out,background .18s ease-out,color .18s ease-out;
}
.chip:hover{border-color:var(--jade);color:var(--ink-800);background:rgba(47,143,138,.06)}

/* 文章头部装饰纹理 */
.page-head{
  position:relative;
  background-image:
    linear-gradient(rgba(250,249,246,.95),rgba(250,249,246,.99)),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 28%,rgba(228,183,92,.7),transparent 60%),
    radial-gradient(1.5px 1.5px at 78% 18%,rgba(47,143,138,.55),transparent 60%),
    radial-gradient(1.2px 1.2px at 58% 72%,rgba(30,36,80,.35),transparent 60%),
    radial-gradient(1.2px 1.2px at 32% 84%,rgba(228,183,92,.5),transparent 60%);
}
.head-line{
  height:1px;width:100%;
  background:linear-gradient(90deg,rgba(47,143,138,0),rgba(47,143,138,.85),rgba(47,143,138,0));
}

/* 正文排版 */
.article-body{
  max-width:760px;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.015em;
  color:var(--ink-600);
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  font-size:clamp(22px,2.2vw,28px);
  line-height:1.4;
  margin:2em 0 .8em;
  padding-left:14px;
  border-left:3px solid var(--jade);
}
.article-body h3{font-size:20px;line-height:1.5;margin:1.7em 0 .6em;color:var(--ink-800)}
.article-body h4{font-size:17px;line-height:1.5;margin:1.4em 0 .5em;color:var(--ink-800)}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:1.3em}
.article-body li{margin-bottom:.5em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body ul li::marker{color:var(--jade)}
.article-body ol li::marker{color:var(--jade);font-weight:600}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;
  background:var(--paper-2);
  border-left:3px solid var(--jade);
  border-radius:0 var(--radius-img) var(--radius-img) 0;
  color:var(--ink-800);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{
  color:var(--jade);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:3px;
}
.article-body a:hover{color:var(--jade-deep)}
.article-body img{border-radius:var(--radius-img);margin:1.4em 0;width:100%}
.article-body figure{margin:1.6em 0}
.article-body figcaption{
  font-size:13px;color:var(--ink-400);text-align:center;
  line-height:1.7;margin-top:8px;
}
.article-body table{
  width:100%;border-collapse:collapse;
  font-size:15px;line-height:1.75;margin:1.6em 0;
  border:1px solid var(--line);border-radius:var(--radius-img);overflow:hidden;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:10px 14px;text-align:left;vertical-align:top;
}
.article-body th{background:var(--paper-2);color:var(--ink-800);font-weight:600}
.article-body tr:nth-child(even) td{background:rgba(241,239,233,.5)}
.article-body code{
  background:var(--paper-2);color:var(--ink-800);
  padding:2px 6px;border-radius:6px;font-size:14.5px;
}
.article-body pre{
  background:var(--ink-950);color:rgba(255,255,255,.86);
  padding:18px 20px;border-radius:var(--radius-img);
  overflow-x:auto;font-size:14.5px;line-height:1.75;margin:1.6em 0;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

/* 空态 */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;min-height:220px;padding:36px 24px;
  background:var(--paper-2);
  border:1px dashed rgba(107,114,146,.45);
  border-radius:var(--radius-img);
}

/* 分节间距 */
.section{padding-top:var(--section);padding-bottom:var(--section)}
@media (max-width:1023px){:root{--section:72px}}
@media (max-width:767px){:root{--section:56px}}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
    --ink-950:#12172E;
    --ink-800:#1E2450;
    --ink-600:#3A4270;
    --ink-400:#6B7292;
    --paper:#FAF9F6;
    --paper-2:#F1EFE9;
    --jade:#2F8F8A;
    --jade-deep:#1F6B67;
    --star:#E4B75C;
    --line:#E2DFD8;
    --success:#3E8A63;
    --warn:#C77A3A;
    --error:#B8503F;
    --radius-card:14px;
    --radius-btn:10px;
    --radius-img:12px;
    --shadow-card:0 1px 2px rgba(30,36,80,.06);
    --shadow-hover:0 8px 24px rgba(30,36,80,.08);
  }

  *,*::before,*::after{ box-sizing:border-box; }

  html{ scroll-behavior:smooth; }

  body{
    margin:0;
    background:var(--paper);
    color:var(--ink-800);
    font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
    font-size:17px;
    line-height:1.9;
    letter-spacing:.015em;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }

  @media (max-width:767px){ body{ font-size:16px; } }

  h1,h2,h3,h4,.font-serif{
    font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
    color:var(--ink-800);
  }

  h1{ font-size:clamp(30px,3.6vw,46px); line-height:1.25; font-weight:600; letter-spacing:.01em; }
  h2{ font-size:clamp(24px,2.4vw,32px); line-height:1.35; font-weight:600; }
  h3{ font-size:20px; line-height:1.5; font-weight:600; }
  h4{ font-size:17px; line-height:1.5; font-weight:600; }

  p{ margin:0 0 1.1em; }
  p:last-child{ margin-bottom:0; }

  a{ color:var(--jade); text-decoration:none; }
  a:hover{ color:var(--jade-deep); }

  img{ max-width:100%; display:block; }
  button{ font-family:inherit; cursor:pointer; }

  :focus-visible{
    outline:2px solid var(--jade);
    outline-offset:2px;
    border-radius:4px;
  }

  ::selection{ background:rgba(47,143,138,.2); }

  /* 滚动条 */
  ::-webkit-scrollbar{ width:10px; height:10px; }
  ::-webkit-scrollbar-track{ background:var(--paper-2); }
  ::-webkit-scrollbar-thumb{ background:rgba(58,66,112,.28); border-radius:999px; border:2px solid var(--paper-2); }
  ::-webkit-scrollbar-thumb:hover{ background:rgba(30,36,80,.45); }

  /* 星点纹理 */
  .starfield{ position:absolute; inset:0; pointer-events:none; }
  .starfield::before{
    content:"";
    position:absolute; inset:0;
    background-image:
      radial-gradient(1.6px 1.6px at 12% 28%, rgba(228,183,92,.7) 50%, transparent 52%),
      radial-gradient(1.5px 1.5px at 31% 72%, rgba(255,255,255,.5) 50%, transparent 52%),
      radial-gradient(1.4px 1.4px at 54% 20%, rgba(255,255,255,.42) 50%, transparent 52%),
      radial-gradient(1.7px 1.7px at 72% 62%, rgba(228,183,92,.55) 50%, transparent 52%),
      radial-gradient(1.3px 1.3px at 88% 34%, rgba(255,255,255,.38) 50%, transparent 52%),
      radial-gradient(1.3px 1.3px at 44% 88%, rgba(255,255,255,.3) 50%, transparent 52%);
    opacity:.85;
  }

  .starline{
    height:1px;
    background:linear-gradient(90deg, transparent, rgba(47,143,138,.75), transparent);
  }

  /* Logo 标记 */
  .logo-mark{
    width:30px; height:30px; flex:0 0 auto;
    display:inline-flex; align-items:center; justify-content:center;
    border-radius:9px;
    background:linear-gradient(135deg,#2F8F8A 0%,#1F6B67 100%);
    color:#fff; font-size:13px;
  }

  /* 侧栏导航 */
  .side-group{
    font-size:12px; letter-spacing:.12em; color:var(--ink-400);
    padding:0 14px; margin:22px 0 8px; text-transform:uppercase;
  }
  .side-group:first-child{ margin-top:0; }

  .side-item{
    position:relative;
    display:flex; align-items:center; gap:10px;
    height:44px; padding:0 14px; border-radius:10px;
    font-size:15px; color:rgba(255,255,255,.72);
    transition:background .18s ease-out, color .18s ease-out;
  }
  .side-item i{ font-size:13px; width:16px; text-align:center; opacity:.75; }
  .side-item:hover{ background:rgba(255,255,255,.08); color:#fff; }
  .side-item.is-active{ background:rgba(255,255,255,.08); color:#fff; font-weight:500; }
  .side-item.is-active::before{
    content:""; position:absolute; left:0; top:10px; bottom:10px;
    width:3px; border-radius:2px; background:var(--jade);
  }

  /* 按钮 */
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    height:46px; padding:0 22px;
    border-radius:var(--radius-btn);
    font-size:15px; font-weight:500; line-height:1;
    border:1px solid transparent;
    transition:background .18s ease-out, color .18s ease-out, border-color .18s ease-out, transform .18s ease-out, box-shadow .18s ease-out;
  }
  .btn-main{ background:var(--ink-800); color:#fff; }
  .btn-main:hover{ background:var(--ink-950); color:#fff; transform:translateY(-1px); }
  .btn-ghost{ background:transparent; border-color:var(--ink-800); color:var(--ink-800); }
  .btn-ghost:hover{ background:rgba(30,36,80,.06); color:var(--ink-800); }
  .btn-star{ background:var(--star); color:var(--ink-950); }
  .btn-star:hover{ background:#efc871; color:var(--ink-950); transform:translateY(-1px); }
  .btn-sm{ height:40px; padding:0 18px; font-size:14px; }
  .btn-block{ width:100%; }

  /* 徽章 / 标签 */
  .badge{
    display:inline-flex; align-items:center; gap:6px;
    padding:5px 12px; border-radius:999px;
    background:var(--paper-2); color:var(--ink-600);
    font-size:12.5px; letter-spacing:.04em;
  }
  .badge-star{ background:var(--star); color:var(--ink-950); }

  .chip{
    display:inline-flex; align-items:center; gap:7px;
    height:38px; padding:0 16px; border-radius:999px;
    border:1px solid var(--line); background:#fff; color:var(--ink-600);
    font-size:14px; white-space:nowrap;
    transition:border-color .18s ease-out, color .18s ease-out, background .18s ease-out;
  }
  .chip:hover{ border-color:var(--jade); color:var(--jade); }
  .chip.is-active{ background:var(--ink-800); border-color:var(--ink-800); color:#fff; }

  /* 卡片 */
  .card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    transition:transform .18s ease-out, box-shadow .18s ease-out, border-color .18s ease-out;
  }
  .card:hover{
    transform:translateY(-2px);
    border-color:rgba(30,36,80,.12);
    box-shadow:var(--shadow-hover);
  }
  .card-img{ border-radius:var(--radius-img); overflow:hidden; }

  .meta{ font-size:13px; line-height:1.6; color:var(--ink-400); }
  .lead{ font-size:15px; line-height:1.8; color:var(--ink-600); }

  /* 状态点 */
  .dot{ width:9px; height:9px; border-radius:999px; flex:0 0 auto; margin-top:8px; }
  .dot-ok{ background:var(--success); box-shadow:0 0 0 3px rgba(62,138,99,.14); }
  .dot-warn{ background:var(--warn); box-shadow:0 0 0 3px rgba(199,122,58,.14); }
  .dot-alt{ background:var(--jade); box-shadow:0 0 0 3px rgba(47,143,138,.14); }

  /* 序号 */
  .num{
    font-family:"Noto Serif SC",serif;
    font-size:26px; line-height:1; color:var(--jade);
    letter-spacing:.02em;
  }

  /* 面包屑 */
  .breadcrumb{ font-size:13px; color:rgba(255,255,255,.6); }
  .breadcrumb a{ color:rgba(255,255,255,.6); }
  .breadcrumb a:hover{ color:#fff; }
  .breadcrumb .sep{ margin:0 8px; color:rgba(255,255,255,.35); }
  .breadcrumb .current{ color:#fff; font-weight:600; }

  /* 页脚链接 */
  .foot-link{ color:rgba(255,255,255,.6); transition:color .18s ease-out; }
  .foot-link:hover{ color:var(--star); text-decoration:underline; text-underline-offset:3px; }

  /* FAQ */
  .faq-item{ padding:0 22px; }
  .faq-q{
    display:flex; align-items:center; justify-content:space-between; gap:18px;
    width:100%; min-height:56px; padding:14px 0;
    background:none; border:0; text-align:left;
    font-size:16px; font-weight:600; color:var(--ink-800);
    font-family:"Noto Serif SC","Songti SC",serif;
  }
  .faq-icon{
    flex:0 0 auto; width:28px; height:28px; border-radius:999px;
    border:1px solid var(--line); color:var(--ink-600);
    display:flex; align-items:center; justify-content:center;
    font-size:14px; transition:transform .2s ease-out, background .2s ease-out, color .2s ease-out;
  }
  .faq-item.open .faq-icon{ background:var(--ink-800); color:#fff; border-color:var(--ink-800); transform:rotate(45deg); }
  .faq-a{ max-height:0; overflow:hidden; transition:max-height .28s ease-out; }
  .faq-item.open .faq-a{ max-height:340px; }
  .faq-a-inner{
    background:var(--paper-2); border-radius:12px;
    padding:18px 20px; margin:0 0 20px;
    font-size:15px; line-height:1.85; color:var(--ink-600);
  }

  /* 表单 */
  .field{
    height:48px; width:100%;
    border:1px solid var(--line); border-radius:var(--radius-btn);
    background:#fff; padding:0 16px;
    font-size:15px; color:var(--ink-800);
    transition:border-color .18s ease-out, box-shadow .18s ease-out;
  }
  .field::placeholder{ color:var(--ink-400); }
  .field:focus{ outline:none; border-color:var(--jade); box-shadow:0 0 0 3px rgba(47,143,138,.15); }
  .helper{ font-size:13px; color:var(--ink-400); }

  /* 分页 / 继续浏览 */
  .page-link{
    display:inline-flex; align-items:center; gap:8px;
    height:44px; padding:0 18px; border-radius:var(--radius-btn);
    border:1px solid var(--line); background:#fff; color:var(--ink-600);
    font-size:14.5px;
    transition:border-color .18s ease-out, color .18s ease-out, transform .18s ease-out;
  }
  .page-link:hover{ border-color:var(--ink-800); color:var(--ink-800); transform:translateY(-1px); }
  .page-link.is-current{ background:var(--ink-800); border-color:var(--ink-800); color:#fff; }
  .page-link.is-current:hover{ color:#fff; }

  /* 移动抽屉 */
  #sidebar{ will-change:transform; }
  body.drawer-open{ overflow:hidden; }

  @media (max-width:1023px){
    #sidebar.open{ transform:translateX(0); }
  }

  /* 更新条 */
  .update-bar{ background:var(--ink-950); }

  @media (prefers-reduced-motion:reduce){
    *{ transition:none !important; animation:none !important; }
    html{ scroll-behavior:auto; }
  }

/* roulang page: category4 */
:root{
    --ink-950:#12172E;
    --ink-800:#1E2450;
    --ink-600:#3A4270;
    --ink-400:#6B7292;
    --paper:#FAF9F6;
    --paper-2:#F1EFE9;
    --jade:#2F8F8A;
    --jade-deep:#1F6B67;
    --star:#E4B75C;
    --line:#E2DFD8;
    --banner-h:240px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink-600);
    font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
    font-size:17px;
    line-height:1.9;
    letter-spacing:.015em;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,.font-serif{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;}
  h1{font-size:clamp(30px,3.6vw,46px);line-height:1.25;font-weight:600;letter-spacing:.01em;}
  h2{font-size:clamp(24px,2.4vw,32px);line-height:1.35;font-weight:600;letter-spacing:.01em;}
  h3{font-size:20px;line-height:1.5;font-weight:600;}
  p{margin:0 0 1.1em;}
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input{font:inherit;color:inherit;}
  ::selection{background:rgba(47,143,138,.2);}
  :focus-visible{outline:2px solid var(--jade);outline-offset:2px;}
  ::-webkit-scrollbar{width:10px;height:10px;}
  ::-webkit-scrollbar-track{background:var(--paper-2);}
  ::-webkit-scrollbar-thumb{background:#c9c5bb;border-radius:999px;border:2px solid var(--paper-2);}
  ::-webkit-scrollbar-thumb:hover{background:#b3aea1;}

  .logo-mark{
    width:32px;height:32px;flex:0 0 32px;border-radius:9px;
    background:linear-gradient(140deg,#2F8F8A 0%,#1E2450 100%);
    display:inline-flex;align-items:center;justify-content:center;
    color:var(--star);font-size:14px;
  }
  .star-dots{
    position:absolute;inset:0;pointer-events:none;opacity:.55;
    background-image:
      radial-gradient(1.5px 1.5px at 12% 28%, rgba(228,183,92,.85) 50%, transparent 51%),
      radial-gradient(1.2px 1.2px at 32% 68%, rgba(255,255,255,.6) 50%, transparent 51%),
      radial-gradient(1.6px 1.6px at 58% 22%, rgba(255,255,255,.5) 50%, transparent 51%),
      radial-gradient(1.2px 1.2px at 76% 74%, rgba(228,183,92,.7) 50%, transparent 51%),
      radial-gradient(1.4px 1.4px at 88% 34%, rgba(255,255,255,.45) 50%, transparent 51%),
      radial-gradient(1.1px 1.1px at 44% 88%, rgba(255,255,255,.4) 50%, transparent 51%);
  }
  .nav-item{
    display:flex;align-items:center;height:44px;padding-left:14px;
    border-radius:10px;color:rgba(255,255,255,.7);font-size:15px;
    border-left:3px solid transparent;
    transition:background .18s ease,color .18s ease,border-color .18s ease;
  }
  .nav-item i{width:18px;margin-right:12px;font-size:14px;text-align:center;color:rgba(255,255,255,.45);}
  .nav-item:hover{background:rgba(255,255,255,.06);color:#fff;}
  .nav-item:hover i{color:var(--star);}
  .nav-item.active{background:rgba(255,255,255,.08);color:#fff;border-left-color:var(--jade);padding-left:11px;}
  .nav-item.active i{color:var(--star);}
  .kicker{
    font-size:12px;letter-spacing:.12em;text-transform:uppercase;
    color:var(--jade);font-weight:600;margin:0 0 10px;
  }
  .banner .kicker{color:var(--star);}
  .breadcrumb{font-size:13px;line-height:1.6;color:rgba(255,255,255,.58);}
  .breadcrumb a{color:rgba(255,255,255,.58);transition:color .18s ease;}
  .breadcrumb a:hover{color:var(--star);text-decoration:underline;text-underline-offset:3px;}
  .breadcrumb .sep{margin:0 8px;opacity:.5;}
  .breadcrumb .cur{color:#fff;font-weight:600;}
  .link-jade{
    color:var(--jade);text-decoration:underline;text-underline-offset:3px;
    text-decoration-thickness:1px;transition:color .18s ease;
  }
  .link-jade:hover{color:var(--jade-deep);}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:10px;font-size:15px;font-weight:500;
    line-height:1;border:1px solid transparent;cursor:pointer;
    transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  }
  .btn-primary{background:var(--ink-800);color:#fff;}
  .btn-primary:hover{background:var(--ink-950);transform:translateY(-1px);box-shadow:0 8px 20px rgba(30,36,80,.16);}
  .btn-ghost{background:transparent;color:var(--ink-800);border-color:rgba(30,36,80,.28);}
  .btn-ghost:hover{background:rgba(30,36,80,.06);border-color:var(--ink-800);}
  .btn-star{background:var(--star);color:var(--ink-950);}
  .btn-star:hover{background:#efc871;transform:translateY(-1px);}
  .btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.32);}
  .btn-outline-light:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.6);}
  .btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;}

  .chip{
    display:inline-flex;align-items:center;gap:8px;
    height:40px;padding:0 18px;border-radius:999px;white-space:nowrap;
    font-size:14px;color:var(--ink-600);background:#fff;border:1px solid var(--line);
    cursor:pointer;transition:all .18s ease;
  }
  .chip:hover{border-color:rgba(30,36,80,.28);color:var(--ink-800);}
  .chip.active{background:var(--ink-800);border-color:var(--ink-800);color:#fff;}
  .chip .cnt{font-size:12px;opacity:.7;}

  .badge{
    display:inline-flex;align-items:center;height:26px;padding:0 12px;
    border-radius:999px;font-size:12.5px;letter-spacing:.02em;
    background:var(--paper-2);color:var(--ink-600);
  }
  .badge-dark{background:rgba(18,23,46,.82);color:#fff;backdrop-filter:none;}
  .badge-star{background:var(--star);color:var(--ink-950);font-weight:600;}

  .filter-card{transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;}
  .filter-card:hover{transform:translateY(-2px);border-color:rgba(30,36,80,.2);box-shadow:0 8px 24px rgba(30,36,80,.08);}
  .filter-card .thumb-img{transition:transform .5s ease-out;}
  .filter-card:hover .thumb-img{transform:scale(1.03);}
  .is-hidden{display:none !important;}

  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:56px;padding:14px 0;background:none;border:0;border-bottom:1px solid var(--line);
    text-align:left;font-size:17px;font-weight:600;color:var(--ink-800);cursor:pointer;
    font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
    transition:color .18s ease;
  }
  .faq-q:hover{color:var(--jade-deep);}
  .faq-icon{
    flex:0 0 28px;width:28px;height:28px;border-radius:999px;
    border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
    font-size:12px;color:var(--ink-600);transition:all .18s ease;
  }
  .faq-item.open .faq-icon{background:var(--jade);border-color:var(--jade);color:#fff;transform:rotate(180deg);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
  .faq-item.open .faq-a{max-height:340px;}
  .faq-a-inner{
    margin-top:14px;background:var(--paper-2);border-radius:12px;padding:20px;
    font-size:15.5px;line-height:1.85;color:var(--ink-600);
  }
  .faq-a-inner p:last-child{margin-bottom:0;}

  .page-btn{
    min-width:44px;height:44px;padding:0 14px;border-radius:10px;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);background:#fff;color:var(--ink-600);
    font-size:14px;transition:all .18s ease;
  }
  .page-btn:hover{border-color:var(--ink-800);color:var(--ink-800);}
  .page-btn.current{background:var(--ink-800);border-color:var(--ink-800);color:#fff;font-weight:600;}

  .field{
    width:100%;height:48px;padding:0 16px;border-radius:10px;
    border:1px solid var(--line);background:#fff;color:var(--ink-800);
    font-size:15px;transition:border-color .18s ease,box-shadow .18s ease;
  }
  .field::placeholder{color:var(--ink-400);}
  .field:focus{outline:none;border-color:var(--jade);box-shadow:0 0 0 3px rgba(47,143,138,.15);}
  .helper{font-size:13px;line-height:1.6;color:var(--ink-400);margin:10px 0 0;}

  .foot-link{color:rgba(255,255,255,.6);transition:color .18s ease;}
  .foot-link:hover{color:var(--star);text-decoration:underline;text-underline-offset:3px;}

  #drawer{transition:transform .3s ease;}
  @media (max-width:1023px){
    body{font-size:16px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  }

/* roulang page: category3 */
:root{
    --ink-950:#12172E;
    --ink-800:#1E2450;
    --ink-600:#3A4270;
    --ink-400:#6B7292;
    --paper:#FAF9F6;
    --paper-2:#F1EFE9;
    --jade:#2F8F8A;
    --jade-deep:#1F6B67;
    --star:#E4B75C;
    --line:#E2DFD8;
    --radius-card:14px;
    --radius-btn:10px;
    --radius-img:12px;
    --shadow-card:0 1px 2px rgba(30,36,80,.06);
    --shadow-hover:0 8px 24px rgba(30,36,80,.08);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
    background:var(--paper);
    color:var(--ink-600);
    font-size:17px;
    line-height:1.9;
    letter-spacing:.015em;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;color:var(--ink-800);margin:0;letter-spacing:.01em;}
  h2{font-size:clamp(24px,2.4vw,32px);line-height:1.35;font-weight:600;}
  h3{font-size:20px;line-height:1.5;font-weight:600;}
  h4{font-size:17px;line-height:1.5;font-weight:600;}
  p{margin:0;}
  a{color:var(--jade);text-decoration:none;text-underline-offset:3px;}
  a:hover{color:var(--jade-deep);}
  img{max-width:100%;display:block;}
  button,input{font:inherit;color:inherit;}
  ul{list-style:none;margin:0;padding:0;}

  a:focus-visible,button:focus-visible,input:focus-visible{
    outline:2px solid var(--jade);
    outline-offset:2px;
    border-radius:6px;
  }

  ::-webkit-scrollbar{width:10px;height:10px;}
  ::-webkit-scrollbar-track{background:var(--paper-2);}
  ::-webkit-scrollbar-thumb{background:#CFCBC2;border-radius:999px;border:2px solid var(--paper-2);}
  ::-webkit-scrollbar-thumb:hover{background:#B9B4AA;}

  /* ---------- 侧栏导航 ---------- */
  .logo-mark{
    width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
    background:linear-gradient(140deg,#1E2450,#12172E);
    border:1px solid rgba(228,183,92,.35);
    color:var(--star);font-size:14px;flex:0 0 auto;
  }
  .side-link{
    position:relative;display:flex;align-items:center;gap:10px;
    height:44px;padding-left:14px;border-radius:10px;
    color:rgba(255,255,255,.62);font-size:15px;line-height:1;
    transition:background .18s ease-out,color .18s ease-out;
  }
  .side-link i{font-size:14px;width:16px;text-align:center;opacity:.85;}
  .side-link:hover{background:rgba(255,255,255,.06);color:#fff;}
  .side-link.active{background:rgba(255,255,255,.08);color:#fff;}
  .side-link.active::before{
    content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:2px;background:var(--jade);
  }
  .nav-group{
    font-size:12px;letter-spacing:.12em;color:var(--ink-400);
    padding-left:14px;margin:20px 0 8px;
  }
  .nav-group:first-child{margin-top:0;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 22px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:500;line-height:1;
    border:1px solid transparent;cursor:pointer;
    transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
  }
  .btn-primary{background:var(--ink-800);color:#fff;}
  .btn-primary:hover{background:var(--ink-950);color:#fff;transform:translateY(-1px);}
  .btn-ghost{background:transparent;color:var(--ink-800);border-color:var(--ink-800);}
  .btn-ghost:hover{background:rgba(30,36,80,.06);color:var(--ink-800);}
  .btn-star{background:var(--star);color:var(--ink-950);}
  .btn-star:hover{background:#EDC577;color:var(--ink-950);transform:translateY(-1px);}
  .btn-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
  .btn-light:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.7);}
  .btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}

  /* ---------- 卡片与徽章 ---------- */
  .card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
  }
  .card:hover{transform:translateY(-2px);border-color:rgba(30,36,80,.12);box-shadow:var(--shadow-hover);}
  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
    background:var(--paper-2);color:var(--ink-600);font-size:12px;line-height:1;letter-spacing:.02em;
  }
  .badge-star{background:var(--star);color:var(--ink-950);}
  .tag{
    display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
    border:1px solid var(--line);background:#fff;color:var(--ink-600);font-size:13px;line-height:1;
  }

  /* ---------- 面包屑 ---------- */
  .crumb{color:var(--ink-400);}
  .crumb:hover{color:var(--jade);}

  /* ---------- 首屏 ---------- */
  .hero-media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
  .hero-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,23,46,.72) 0%,rgba(18,23,46,.88) 100%);}
  .starfield{
    position:absolute;inset:0;pointer-events:none;opacity:.85;
    background-image:
      radial-gradient(1.6px 1.6px at 8% 26%, rgba(228,183,92,.85) 50%, transparent 51%),
      radial-gradient(1.2px 1.2px at 19% 68%, rgba(255,255,255,.55) 50%, transparent 51%),
      radial-gradient(1.8px 1.8px at 33% 18%, rgba(228,183,92,.7) 50%, transparent 51%),
      radial-gradient(1.2px 1.2px at 47% 78%, rgba(255,255,255,.45) 50%, transparent 51%),
      radial-gradient(1.5px 1.5px at 61% 34%, rgba(228,183,92,.6) 50%, transparent 51%),
      radial-gradient(1.2px 1.2px at 72% 72%, rgba(255,255,255,.4) 50%, transparent 51%),
      radial-gradient(1.7px 1.7px at 84% 22%, rgba(228,183,92,.7) 50%, transparent 51%),
      radial-gradient(1.2px 1.2px at 93% 60%, rgba(255,255,255,.45) 50%, transparent 51%);
  }
  .hero-line{
    position:absolute;left:0;right:0;bottom:0;height:2px;
    background:linear-gradient(90deg,rgba(47,143,138,0) 0%,rgba(47,143,138,.9) 45%,rgba(228,183,92,.8) 100%);
  }

  /* ---------- 时间线 ---------- */
  .timeline{position:relative;}
  .tl-item{
    position:relative;display:grid;grid-template-columns:88px minmax(0,1fr);gap:24px;
    padding-bottom:42px;
  }
  .tl-item::before{
    content:"";position:absolute;left:43px;top:66px;bottom:6px;width:1px;
    background:linear-gradient(180deg,var(--line) 0%,rgba(226,223,216,.35) 100%);
  }
  .tl-item:last-child{padding-bottom:0;}
  .tl-item:last-child::before{display:none;}
  .tl-num{
    font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
    font-size:44px;line-height:1;font-weight:600;letter-spacing:.02em;
    color:rgba(30,36,80,.16);text-align:center;padding-top:2px;
    transition:color .18s ease-out;
  }
  .tl-item:hover .tl-num{color:var(--star);}
  .tl-body{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:22px 24px;box-shadow:var(--shadow-card);
    transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
  }
  .tl-body:hover{transform:translateY(-2px);border-color:rgba(30,36,80,.12);box-shadow:var(--shadow-hover);}

  /* ---------- FAQ ---------- */
  .faq-item{border:1px solid var(--line);border-radius:12px;background:#fff;overflow:hidden;transition:border-color .18s ease-out;}
  .faq-item + .faq-item{margin-top:12px;}
  .faq-item:hover{border-color:rgba(30,36,80,.14);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:56px;padding:14px 20px;background:transparent;border:0;cursor:pointer;
    text-align:left;font-size:16px;font-weight:600;color:var(--ink-800);line-height:1.6;
  }
  .faq-ico{
    width:28px;height:28px;flex:0 0 auto;border-radius:999px;border:1px solid var(--line);
    display:inline-flex;align-items:center;justify-content:center;color:var(--ink-600);font-size:14px;
    transition:transform .22s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  }
  .faq-item.open .faq-ico{transform:rotate(45deg);background:var(--jade);border-color:var(--jade);color:#fff;}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease-out;}
  .faq-a-inner{
    background:var(--paper-2);border-radius:12px;padding:18px 20px;margin:0 20px 18px;
    font-size:15px;line-height:1.85;color:var(--ink-600);
  }

  /* ---------- 表单 ---------- */
  .form-input{
    height:48px;width:100%;border:1px solid var(--line);border-radius:var(--radius-btn);
    padding:0 16px;font-size:15px;background:#fff;color:var(--ink-800);outline:none;
    transition:border-color .18s ease-out,box-shadow .18s ease-out;
  }
  .form-input::placeholder{color:var(--ink-400);}
  .form-input:focus{border-color:var(--jade);box-shadow:0 0 0 3px rgba(47,143,138,.15);}
  .form-input.is-error{border-color:var(--error);}
  .form-help{font-size:13px;color:var(--ink-400);line-height:1.6;}

  /* ---------- 页脚 ---------- */
  .foot-link{color:rgba(255,255,255,.62);font-size:14px;transition:color .18s ease-out;}
  .foot-link:hover{color:var(--star);text-decoration:underline;text-underline-offset:3px;}

  /* ---------- 移动端抽屉 ---------- */
  .drawer{transform:translateX(-100%);transition:transform .26s ease-out;}
  .drawer.open{transform:translateX(0);}
  .chip{
    display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
    background:#fff;border:1px solid var(--line);color:var(--ink-600);
    font-size:14px;line-height:1;white-space:nowrap;transition:all .18s ease-out;
  }
  .chip:hover{border-color:rgba(30,36,80,.2);color:var(--ink-800);}
  .chip.active{background:var(--ink-800);border-color:var(--ink-800);color:#fff;}
  .no-bar{-ms-overflow-style:none;scrollbar-width:none;}
  .no-bar::-webkit-scrollbar{display:none;}

  @media (max-width:1023px){
    body{font-size:16px;}
  }
  @media (max-width:767px){
    .tl-item{grid-template-columns:56px minmax(0,1fr);gap:14px;padding-bottom:32px;}
    .tl-item::before{left:27px;top:48px;}
    .tl-num{font-size:30px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;scroll-behavior:auto !important;}
  }