/* roulang page: index */
:root{
  --c-primary:#14524B;
  --c-primary-dark:#0E3E39;
  --c-primary-light:#6FA8A0;
  --c-primary-mist:#EDF3F1;
  --c-clay:#C4703A;
  --c-clay-mist:#F3E3D6;
  --c-paper:#FAF8F4;
  --c-surface:#FFFFFF;
  --c-line:#E7E2D8;
  --c-ink:#1B2320;
  --c-muted:#5F6E68;
  --c-disabled:#9AA5A1;
  --r-card:12px;
  --r-btn:8px;
  --sh-1:0 1px 2px rgba(20,40,36,.06);
  --sh-2:0 10px 28px rgba(20,40,36,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Microsoft YaHei',system-ui,sans-serif;
  background:var(--c-paper);
  color:var(--c-ink);
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.4;letter-spacing:-0.01em;font-weight:600;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--c-clay);outline-offset:2px;border-radius:4px;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){ .wrap{padding-left:28px;padding-right:28px;} }
@media (min-width:1280px){ .wrap{padding-left:32px;padding-right:32px;} }

/* 顶栏 */
.topbar{background:var(--c-primary-dark);color:#EDF3F1;font-size:13px;}
.topbar a{color:#EDF3F1;}
.topbar a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(250,248,244,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  box-shadow:0 4px 18px rgba(20,40,36,.07);
  border-bottom-color:var(--c-line);
}
.nav-inner{transition:padding .25s ease;}
.site-header.is-scrolled .nav-inner{padding-top:8px;padding-bottom:8px;}
.logo-mark{
  width:38px;height:38px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-primary-light) 100%);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:700;font-size:15px;letter-spacing:.02em;
}
.logo-text{font-size:17px;font-weight:600;color:var(--c-primary-dark);line-height:1.25;}
.logo-sub{font-size:11.5px;color:var(--c-muted);letter-spacing:.06em;text-transform:uppercase;}

.nav-link{position:relative;font-size:16px;color:var(--c-ink);padding:6px 0;white-space:nowrap;}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-clay);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:500;}
.nav-link.is-active::after{transform:scaleX(1);}

.mega-wrap{position:relative;}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:min(820px,86vw);
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:0 14px 40px rgba(20,40,36,.12);
  padding:26px;z-index:90;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.mega-panel::before{content:"";position:absolute;left:0;right:0;top:-14px;height:14px;}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-title{font-size:12.5px;color:var(--c-muted);letter-spacing:.08em;margin-bottom:12px;}
.mega-link{display:flex;align-items:center;gap:8px;font-size:15px;color:var(--c-ink);padding:6px 0;}
.mega-link:hover{color:var(--c-primary);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:16px;line-height:1;padding:13px 22px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(20,40,36,.20);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-secondary{background:#fff;border-color:var(--c-primary);color:var(--c-primary);}
.btn-secondary:hover{background:var(--c-primary-mist);transform:translateY(-1px);}
.btn-secondary:active{transform:translateY(0);}
.btn-inverse{background:transparent;border-color:rgba(255,255,255,.65);color:#fff;}
.btn-inverse:hover{background:rgba(255,255,255,.14);border-color:#fff;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;background:none;border:none;padding:0;
  color:var(--c-primary);font-size:15px;cursor:pointer;
  text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px;
}
.btn-ghost:hover{color:var(--c-clay);}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* 徽章 */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;line-height:1;padding:5px 10px;border-radius:999px;white-space:nowrap;}
.badge-cat{background:var(--c-primary-mist);color:var(--c-primary);}
.badge-cat::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--c-primary-light);flex:none;}
.badge-state{background:var(--c-clay-mist);color:#8C4A1F;}
.badge-time{background:transparent;border:1px solid var(--c-line);color:var(--c-muted);}

/* 卡片 */
.card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  display:flex;flex-direction:column;height:100%;
}
.card:hover{border-color:var(--c-primary-light);box-shadow:var(--sh-2);}
.card:hover .card-title{color:var(--c-primary);}
.card-title{transition:color .2s ease;}
.card-media{position:relative;overflow:hidden;border-radius:calc(var(--r-card) - 1px) calc(var(--r-card) - 1px) 0 0;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.tint::after{content:"";position:absolute;inset:0;background:rgba(20,82,75,.08);pointer-events:none;}

/* 截断 */
.clamp-1,.clamp-2,.clamp-3,.clamp-4{display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden;}
.clamp-1{-webkit-line-clamp:1;}
.clamp-2{-webkit-line-clamp:2;}
.clamp-3{-webkit-line-clamp:3;}
.clamp-4{-webkit-line-clamp:4;}

/* Hero 弧线底纹 */
.arc-deco{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 92% 4%, transparent 0 190px, rgba(20,82,75,.06) 190px 191px, transparent 191px),
    radial-gradient(circle at 92% 4%, transparent 0 268px, rgba(20,82,75,.05) 268px 269px, transparent 269px),
    radial-gradient(circle at 92% 4%, transparent 0 346px, rgba(20,82,75,.04) 346px 347px, transparent 347px);
}
.hr-fade{height:1px;background:linear-gradient(90deg,transparent 0%,var(--c-line) 22%,var(--c-line) 78%,transparent 100%);}

/* 手风琴 */
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:17px;font-weight:500;line-height:1.6;padding:15px 0 15px 0;
  position:relative;transition:color .18s ease,padding-left .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:var(--c-clay);border-radius:2px;opacity:0;transition:opacity .2s ease;
}
.faq-item summary .arrow{flex:none;color:var(--c-muted);transition:transform .2s ease,color .2s ease;}
.faq-item[open] summary{color:var(--c-primary);padding-left:14px;}
.faq-item[open] summary::before{opacity:1;}
.faq-item[open] summary .arrow{transform:rotate(90deg);color:var(--c-clay);}
.faq-answer{padding:0 0 20px 14px;color:var(--c-muted);font-size:15.5px;line-height:1.85;}

/* 表单 */
.field-label{display:block;font-size:14px;color:var(--c-muted);margin-bottom:8px;}
.field-input,.field-select,.field-textarea{
  width:100%;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-btn);
  padding:11px 14px;font-size:15.5px;line-height:1.6;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field-input{height:46px;}
.field-select{height:46px;appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-muted) 50%),linear-gradient(135deg,var(--c-muted) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 15px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field-textarea{min-height:120px;line-height:1.8;resize:vertical;}
.field-input:focus,.field-select:focus,.field-textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(237,243,241,1);
}
.field-input::placeholder,.field-textarea::placeholder{color:#9AA5A1;}

/* 步骤 */
.step-item{position:relative;padding-left:60px;padding-bottom:32px;}
.step-item:last-child{padding-bottom:0;}
.step-item::before{
  content:"";position:absolute;left:15px;top:38px;bottom:0;width:1px;
  border-left:1px dashed #CBD6D2;
}
.step-item:last-child::before{display:none;}
.step-no{
  position:absolute;left:0;top:2px;width:32px;height:32px;border-radius:6px 6px 6px 24px;
  background:var(--c-clay);color:#fff;font-size:14px;font-weight:600;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}

/* 内容列表行 */
.row-item{display:flex;gap:18px;padding:18px 0;border-bottom:1px solid var(--c-line);transition:background .2s ease;}
.row-item:last-child{border-bottom:none;}
.row-item:hover{background:#FAF8F4;}
.row-thumb{width:170px;flex:none;border-radius:10px;overflow:hidden;}
@media (max-width:767px){
  .row-item{flex-direction:column;gap:12px;}
  .row-thumb{width:100%;}
}

/* 页脚 */
.site-footer{background:var(--c-primary-dark);color:#C9DAD6;font-size:14px;line-height:1.9;}
.site-footer h3{color:#EDF3F1;font-size:15px;margin-bottom:14px;font-weight:600;}
.site-footer a{color:#C9DAD6;}
.site-footer a:hover{color:#fff;}
.footer-link{display:block;padding:5px 0;}
.footer-hr{height:1px;background:rgba(255,255,255,.12);}

/* 移动端抽屉 */
.mobile-panel{background:#fff;border-top:1px solid var(--c-line);}

@media (max-width:639px){
  body{font-size:16px;line-height:1.85;}
  h1{font-size:28px !important;}
  .btn{width:100%;min-height:46px;}
  .btn-ghost{width:auto;min-height:auto;}
}

/* roulang page: category1 */
:root{
  --ink:#1B2320;
  --sub:#5F6E68;
  --paper:#FAF8F4;
  --card:#FFFFFF;
  --line:#E7E2D8;
  --teal:#14524B;
  --teal-deep:#0E3E39;
  --teal-light:#6FA8A0;
  --mist:#EDF3F1;
  --clay:#C4703A;
  --clay-mist:#F3E3D6;
  --radius-card:12px;
  --radius-img:10px;
  --radius-btn:8px;
  --shadow-1:0 1px 2px rgba(20,40,36,.06);
  --shadow-2:0 10px 28px rgba(20,40,36,.10);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  -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,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
:focus-visible{outline:2px solid var(--clay);outline-offset:2px;border-radius:2px;}
.num{font-variant-numeric:tabular-nums;}

.wrap{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
.sec{padding-top:56px;padding-bottom:56px;}
@media (min-width:768px){ .sec{padding-top:72px;padding-bottom:72px;} }
@media (min-width:1024px){ .sec{padding-top:92px;padding-bottom:92px;} }

.hairline{height:1px;border:0;background:linear-gradient(90deg,rgba(231,226,216,0) 0%,#E7E2D8 22%,#E7E2D8 78%,rgba(231,226,216,0) 100%);}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--teal-deep);color:#EDF3F1;font-size:12.5px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px;}
.topbar a{color:#EDF3F1;text-decoration:underline;text-underline-offset:3px;}
.topbar a:hover{color:#fff;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,248,244,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:background .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:0 6px 18px rgba(20,40,36,.06);
}
.nav-row{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px;transition:height .2s ease;}
.site-header.is-scrolled .nav-row{height:60px;}

.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:38px;height:38px;border-radius:10px;
  background:var(--teal);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;letter-spacing:0;
}
.brand-text{font-size:17px;font-weight:600;color:var(--teal-deep);white-space:nowrap;}

.nav-link{
  position:relative;font-size:15.5px;color:var(--ink);
  padding:6px 2px;white-space:nowrap;
  transition:color .18s ease;
}
.nav-link::after{
  content:'';position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--clay);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--teal);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--teal-deep);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}

.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:5px;
  font-size:14.5px;color:var(--sub);
  background:transparent;border:0;cursor:pointer;padding:8px 4px;
  transition:color .18s ease;
}
.mega-trigger:hover{color:var(--teal);}
.mega-caret{width:8px;height:8px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 16px);
  width:780px;max-width:calc(100vw - 40px);
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:0 14px 40px rgba(20,40,36,.12);
  padding:24px;
  display:grid;grid-template-columns:1.05fr 1fr .95fr;gap:28px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-title{font-size:12.5px;color:var(--sub);letter-spacing:.04em;margin-bottom:14px;}
.mega-link{
  display:flex;align-items:center;gap:8px;
  font-size:14.5px;color:var(--ink);padding:7px 0;line-height:1.6;
  transition:color .18s ease,transform .18s ease;
}
.mega-link:hover{color:var(--teal);transform:translateX(2px);}
.mega-post{display:block;padding:8px 0;border-bottom:1px dashed var(--line);}
.mega-post:last-child{border-bottom:0;}
.mega-post .t{font-size:14.5px;color:var(--ink);line-height:1.6;transition:color .18s ease;}
.mega-post:hover .t{color:var(--teal);}
.mega-post .d{font-size:12.5px;color:var(--sub);margin-top:2px;}
.mega-card{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;transition:box-shadow .18s ease,border-color .18s ease;}
.mega-card:hover{border-color:var(--teal-light);box-shadow:var(--shadow-2);}

.drawer-toggle{
  list-style:none;display:flex;align-items:center;justify-content:center;
  width:42px;height:42px;border:1px solid var(--line);border-radius:8px;
  background:#fff;cursor:pointer;
}
.drawer-toggle::-webkit-details-marker{display:none;}
.drawer-lines{width:18px;display:flex;flex-direction:column;gap:4px;}
.drawer-lines span{height:1.5px;background:var(--teal-deep);border-radius:2px;}
.drawer-panel{
  position:absolute;left:0;right:0;top:100%;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 14px 30px rgba(20,40,36,.10);
  padding:12px 20px 20px;
}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 2px;font-size:15.5px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-link:last-child{border-bottom:0;}
.drawer-link.is-active{color:var(--teal);font-weight:600;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15.5px;line-height:1.2;padding:12px 22px;border-radius:8px;
  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(--teal);color:#fff;}
.btn-primary:hover{background:var(--teal-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(20,40,36,.18);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-secondary{background:#fff;color:var(--teal);border-color:var(--teal);}
.btn-secondary:hover{background:var(--mist);}
.btn-ghost{background:transparent;color:var(--teal);padding:6px 0;border-radius:0;border-bottom:1px solid var(--teal-light);}
.btn-ghost:hover{color:var(--clay);border-bottom-color:var(--clay);}
.btn-outline-white{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.btn-outline-white:hover{background:rgba(255,255,255,.14);}
.btn-sm{font-size:14.5px;padding:10px 18px;}
@media (max-width:639px){
  .btn{width:100%;min-height:46px;}
  .btn-ghost{width:auto;}
}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;line-height:1;padding:5px 10px;border-radius:999px;
  border:1px solid transparent;white-space:nowrap;
}
.badge-mist{background:var(--mist);color:var(--teal-deep);}
.badge-clay{background:var(--clay-mist);color:#8C4A21;}
.badge-line{border-color:var(--line);color:var(--sub);background:transparent;}
.dot{width:5px;height:5px;border-radius:999px;background:currentColor;display:inline-block;}

/* ============ 卡片 ============ */
.card{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-1);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.card:hover{border-color:var(--teal-light);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.card-body{padding:20px 22px 22px;}
.card-title{font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;transition:color .18s ease;}
.card:hover .card-title{color:var(--teal-deep);}
.card-text{font-size:14.5px;color:var(--sub);line-height:1.8;}

.thumb{position:relative;overflow:hidden;background:var(--mist);border-radius:12px 12px 0 0;}
.thumb-16x9{aspect-ratio:16/9;}
.thumb-4x3{aspect-ratio:4/3;}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .thumb img{transform:scale(1.03);}

.clamp-1{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}

/* ============ 分类页横幅 ============ */
.page-hero{position:relative;overflow:hidden;border-radius:0;}
.page-hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;}
.page-hero-mask{position:absolute;inset:0;background:linear-gradient(120deg,rgba(14,62,57,.88) 0%,rgba(14,62,57,.62) 58%,rgba(20,82,75,.42) 100%);}
.page-hero-inner{position:relative;padding-top:40px;padding-bottom:34px;}
@media (min-width:1024px){ .page-hero-inner{padding-top:56px;padding-bottom:48px;} }
.crumb{font-size:13.5px;color:rgba(237,243,241,.78);}
.crumb a{color:rgba(237,243,241,.9);}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.crumb .sep{margin:0 8px;opacity:.6;}
.crumb .now{color:rgba(237,243,241,.62);}
.anchor-nav{display:flex;flex-wrap:wrap;gap:8px 22px;}
.anchor-nav a{
  font-size:14px;color:rgba(237,243,241,.82);padding:2px 0;
  border-bottom:1px solid transparent;transition:color .18s ease,border-color .18s ease;
}
.anchor-nav a:hover{color:#fff;border-bottom-color:var(--clay-mist);}
.anchor-nav a.is-current{color:#fff;border-bottom-color:var(--clay);}

/* ============ 时间线 ============ */
.timeline{position:relative;}
.timeline::before{
  content:'';position:absolute;left:19px;top:14px;bottom:18px;width:1px;
  background:linear-gradient(180deg,rgba(231,226,216,0) 0%,var(--line) 8%,var(--line) 92%,rgba(231,226,216,0) 100%);
}
.tl-item{position:relative;display:flex;gap:20px;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-num{
  position:relative;z-index:1;flex:none;
  width:38px;height:38px;border-radius:6px 6px 6px 18px;
  background:var(--clay);color:#fff;
  font-size:15px;font-weight:600;font-variant-numeric:tabular-nums;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 6px var(--paper);
}
.tl-body{padding-top:4px;flex:1;min-width:0;}
.tl-title{font-size:18px;font-weight:600;color:var(--ink);line-height:1.5;}
.tl-text{font-size:15px;color:var(--sub);line-height:1.85;margin-top:6px;max-width:620px;}
.tl-shot{margin-top:14px;border:1px solid var(--line);border-radius:10px;overflow:hidden;max-width:460px;}

/* ============ 粘性目录 ============ */
.toc{position:sticky;top:96px;}
.toc-list{display:flex;flex-direction:column;}
.toc-list a{
  position:relative;display:block;
  font-size:14.5px;color:var(--sub);padding:11px 0 11px 14px;
  border-bottom:1px solid var(--line);
  transition:color .18s ease,padding-left .18s ease;
}
.toc-list a::before{
  content:'';position:absolute;left:0;top:12px;bottom:12px;width:2px;
  background:transparent;transition:background .18s ease;
}
.toc-list a:hover{color:var(--teal);padding-left:17px;}
.toc-list a.is-current{color:var(--teal-deep);font-weight:600;}
.toc-list a.is-current::before{background:var(--clay);}

/* ============ 提示条 / 清单 ============ */
.notice{
  background:var(--mist);border-radius:12px;border-left:3px solid var(--teal);
  padding:22px 24px;
}
.notice h3{font-size:17px;font-weight:600;color:var(--teal-deep);}
.notice p{font-size:14.5px;color:#3F5651;line-height:1.85;margin-top:6px;}

.check-item{
  display:flex;gap:12px;align-items:flex-start;
  border:1px solid var(--line);border-radius:10px;background:#fff;
  padding:18px 18px;transition:border-color .18s ease,box-shadow .18s ease;
}
.check-item:hover{border-color:var(--teal-light);box-shadow:var(--shadow-1);}
.check-box{
  flex:none;width:20px;height:20px;border-radius:5px;border:1.5px solid var(--teal-light);
  display:flex;align-items:center;justify-content:center;margin-top:3px;
}
.check-box::after{content:'';width:9px;height:5px;border-left:2px solid var(--teal);border-bottom:2px solid var(--teal);transform:rotate(-45deg) translateY(-1px);}

/* ============ FAQ ============ */
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:15px 0;font-size:17px;font-weight:500;color:var(--ink);
  cursor:pointer;list-style:none;line-height:1.6;
  transition:color .18s ease,padding-left .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--teal);}
.faq-item summary .arrow{
  flex:none;width:9px;height:9px;margin-right:5px;
  border-right:1.5px solid var(--sub);border-bottom:1.5px solid var(--sub);
  transform:rotate(45deg);transition:transform .2s ease,border-color .2s ease;
}
.faq-item[open] summary{color:var(--teal-deep);padding-left:15px;}
.faq-item[open] summary::before{
  content:'';position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:var(--clay);border-radius:2px;
}
.faq-item[open] summary .arrow{transform:rotate(-135deg);border-color:var(--clay);}
.faq-body{padding:0 0 20px 15px;font-size:15px;color:var(--sub);line-height:1.85;max-width:720px;}

/* ============ CTA 通栏 ============ */
.cta-band{position:relative;overflow:hidden;background:var(--teal-deep);}
.cta-band-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;opacity:.5;}
.cta-band-mask{position:absolute;inset:0;background:rgba(14,62,57,.72);}

/* ============ 页脚 ============ */
.site-footer{background:var(--teal-deep);color:#C9DAD6;font-size:14px;}
.site-footer h3{font-size:14px;font-weight:600;color:#EDF3F1;margin-bottom:14px;letter-spacing:.02em;}
.site-footer p{color:#C9DAD6;}
.site-footer .footer-link{
  display:block;font-size:13.5px;line-height:1.95;color:#C9DAD6;
  transition:color .18s ease,padding-left .18s ease;
}
.site-footer .footer-link:hover{color:#fff;padding-left:3px;}
.footer-hr{height:1px;background:rgba(255,255,255,.12);}
.site-footer a{color:#C9DAD6;}
.site-footer a:hover{color:#fff;}

/* ============ 表格（备用紧凑信息） ============ */
.info-table{width:100%;border-collapse:collapse;font-size:14.5px;}
.info-table th,.info-table td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top;}
.info-table th{background:var(--mist);color:var(--teal-deep);font-weight:600;}

@media (max-width:1023px){
  .toc{position:static;}
  .mega-panel{display:none;}
}
@media (max-width:767px){
  .page-hero-inner{padding-top:32px;padding-bottom:28px;}
  .tl-item{gap:14px;}
  .tl-title{font-size:17px;}
}
@media (max-width:639px){
  body{font-size:16px;line-height:1.85;}
  .card-body{padding:18px;}
}

/* roulang page: article */
:root{
  --brand:#14524B;
  --brand-deep:#0E3E39;
  --brand-light:#6FA8A0;
  --brand-mist:#EDF3F1;
  --accent:#C4703A;
  --accent-mist:#F3E3D6;
  --paper:#FAF8F4;
  --card:#FFFFFF;
  --line:#E7E2D8;
  --ink:#1B2320;
  --ink-soft:#5F6E68;
  --ink-mute:#9AA5A1;
  --radius:12px;
  --radius-sm:8px;
  --shadow-1:0 1px 2px rgba(20,40,36,.06);
  --shadow-2:0 10px 28px rgba(20,40,36,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.clamp-1{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.fade-line{height:1px;background:linear-gradient(90deg,rgba(231,226,216,0),#E7E2D8 16%,#E7E2D8 84%,rgba(231,226,216,0))}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,248,244,.94);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(255,255,255,.97);box-shadow:0 6px 24px rgba(20,40,36,.07)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:78px;transition:height .25s ease}
.site-header.is-scrolled .header-inner{height:70px}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:10px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;letter-spacing:.02em;
}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-name{font-size:17px;font-weight:700;color:var(--brand-deep);letter-spacing:-.01em}
.logo-sub{font-size:11.5px;color:var(--ink-mute);letter-spacing:.06em}
.nav-link{position:relative;font-size:16px;color:var(--ink);padding:8px 0;transition:color .18s ease}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-deep);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1);background:var(--brand)}
.header-actions{display:flex;align-items:center;gap:14px}
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;font-size:15.5px;color:var(--ink);
  padding:9px 14px;border-radius:8px;cursor:pointer;transition:background .18s ease,color .18s ease;
}
.mega-trigger:hover,.mega-wrap:focus-within .mega-trigger{color:var(--brand);background:var(--brand-mist)}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:760px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:0 14px 40px rgba(20,40,36,.12);padding:24px;
  display:grid;grid-template-columns:1.05fr 1fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(8px);pointer-events:none;
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}
.mega-title{font-size:13px;font-weight:700;color:var(--brand-deep);letter-spacing:.04em;margin-bottom:14px}
.mega-item{display:block;padding:7px 0;font-size:14.5px;color:var(--ink);transition:color .18s ease}
.mega-item:hover{color:var(--brand)}
.mega-meta{display:block;font-size:12.5px;color:var(--ink-mute);margin-top:2px}
.mega-thumb{border-radius:10px;overflow:hidden;aspect-ratio:4/3;background:var(--brand-mist);margin-bottom:12px}
.mega-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.mega-card:hover .mega-thumb img{transform:scale(1.04)}

.nav-toggle-input{position:absolute;opacity:0;pointer-events:none;width:1px;height:1px}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;
  border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--brand-deep);cursor:pointer;
}
.nav-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.nav-drawer{display:none;background:#fff;border-top:1px solid var(--line)}
#navToggle:checked ~ .nav-drawer{display:block}
.drawer-link{display:block;padding:14px 0;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line)}
.drawer-link:hover{color:var(--brand)}
.drawer-label{font-size:12.5px;color:var(--ink-mute);letter-spacing:.06em;padding:16px 0 6px}
.drawer-sub{display:block;padding:9px 0;font-size:14.5px;color:var(--ink-soft);border-bottom:1px dashed var(--line)}
.drawer-sub:hover{color:var(--brand)}

/* ---------- buttons / badges ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15.5px;font-weight:600;padding:12px 22px;border-radius:var(--radius-sm);
  border:1px solid transparent;cursor:pointer;min-height:44px;line-height:1.2;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(20,82,75,.22)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-secondary{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-secondary:hover{background:var(--brand-mist)}
.btn-ghost{background:transparent;color:var(--brand);padding:8px 0;min-height:auto}
.btn-ghost:hover{color:var(--accent)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-sm{padding:9px 16px;font-size:14.5px;min-height:38px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;line-height:1.6;padding:4px 11px;border-radius:999px}
.badge-mist{background:var(--brand-mist);color:var(--brand-deep)}
.badge-accent{background:var(--accent-mist);color:#8C4A21}
.badge-line{border:1px solid var(--line);color:var(--ink-soft);background:#fff}
.dot{width:6px;height:6px;border-radius:999px;background:var(--brand-light);display:inline-block}

/* ---------- article head ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-soft);padding:22px 0 0}
.breadcrumb a{transition:color .18s ease}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--ink-mute)}
.breadcrumb .current{color:var(--ink-mute);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{padding:26px 0 28px}
.article-title{
  font-size:34px;line-height:1.35;font-weight:700;color:var(--brand-deep);
  letter-spacing:-.01em;margin:16px 0 18px;max-width:860px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13.5px;color:var(--ink-soft)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px}
.article-meta .meta-divider{width:4px;height:4px;border-radius:999px;background:var(--line)}

/* ---------- body ---------- */
.article-body{
  font-size:16.5px;line-height:1.95;color:var(--ink);max-width:720px;
}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  font-size:24px;line-height:1.4;font-weight:700;color:var(--brand-deep);
  margin:40px 0 16px;padding-left:12px;border-left:6px solid var(--brand);letter-spacing:-.01em;
}
.article-body h3{font-size:19px;line-height:1.5;font-weight:700;color:var(--brand-deep);margin:28px 0 12px}
.article-body h4{font-size:17px;font-weight:700;color:var(--brand);margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em}
.article-body li{margin-bottom:8px;line-height:1.85}
.article-body li::marker{color:var(--accent)}
.article-body blockquote{
  margin:24px 0;padding:16px 18px;background:var(--paper);
  border-left:3px solid var(--accent);border-radius:0 8px 8px 0;color:var(--ink-soft);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:10px;margin:24px 0}
.article-body figure{margin:24px 0}
.article-body figure img{margin:0 0 10px}
.article-body figcaption{font-size:14px;color:var(--ink-mute);text-align:center}
.article-body a{color:var(--brand);border-bottom:1px solid var(--brand-light)}
.article-body a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.article-body strong{color:var(--brand-deep)}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;
  background:var(--brand-mist);padding:2px 6px;border-radius:4px;color:var(--brand-deep);
}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:24px 0;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.article-body th{background:var(--brand-mist);color:var(--brand-deep);font-weight:600;text-align:left}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);line-height:1.7}
.article-body tr:nth-child(even) td{background:var(--paper)}
.article-body details{border-bottom:1px solid var(--line);padding:4px 0}
.article-body summary{cursor:pointer;list-style:none;padding:14px 0;font-weight:600;color:var(--brand-deep)}
.article-body summary::-webkit-details-marker{display:none}
.article-body details[open] summary{color:var(--brand)}

/* ---------- sidebar ---------- */
.side{position:sticky;top:104px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:20px;box-shadow:var(--shadow-1)}
.side-card-mist{background:var(--brand-mist);border-color:#DCE8E5}
.side-title{font-size:15px;font-weight:700;color:var(--brand-deep);margin:0 0 14px;padding-left:10px;border-left:3px solid var(--accent)}
.toc ul{list-style:none;margin:0;padding:0}
.toc li{margin-bottom:6px}
.toc a{display:block;font-size:14px;line-height:1.7;color:var(--ink-soft);padding:3px 0 3px 10px;border-left:2px solid transparent;transition:color .18s ease,border-color .18s ease}
.toc a:hover{color:var(--brand)}
.toc a.is-current{color:var(--brand-deep);border-left-color:var(--brand);font-weight:600}
.toc .toc-l3 a{padding-left:24px;font-size:13.5px}
.side-rec{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid var(--line);transition:color .18s ease}
.side-rec:last-child{border-bottom:0;padding-bottom:0}
.side-rec:hover .side-rec-title{color:var(--brand)}
.side-rec-thumb{width:72px;height:54px;border-radius:8px;overflow:hidden;flex-shrink:0;background:var(--brand-mist)}
.side-rec-thumb img{width:100%;height:100%;object-fit:cover}
.side-rec-title{font-size:14px;line-height:1.6;color:var(--ink);transition:color .18s ease}
.side-rec-time{font-size:12.5px;color:var(--ink-mute);margin-top:4px;display:block}

/* ---------- misc blocks ---------- */
.section{padding:64px 0}
.section-mist{background:var(--brand-mist)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;padding:26px 0 0}
.tag{
  display:inline-flex;align-items:center;font-size:13px;padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--ink-soft);transition:all .2s ease;
}
.tag:hover{border-color:var(--brand-light);color:var(--brand-deep);background:var(--brand-mist)}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-1);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;display:flex;flex-direction:column}
.card:hover{border-color:var(--brand-light);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.card-thumb{border-radius:10px;overflow:hidden;aspect-ratio:16/9;background:var(--brand-mist);margin-bottom:14px}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-title{font-size:17px;line-height:1.5;font-weight:700;color:var(--ink);transition:color .18s ease}
.card:hover .card-title{color:var(--brand)}
.card-desc{font-size:14.5px;line-height:1.8;color:var(--ink-soft);margin-top:10px}
.card-foot{margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-mute)}

.support-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.support-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:border-color .2s ease,box-shadow .2s ease}
.support-item:hover{border-color:var(--brand-light);box-shadow:var(--shadow-2)}
.support-item h3{font-size:16.5px;font-weight:700;color:var(--brand-deep);margin:0 0 8px}
.support-item p{font-size:14.5px;line-height:1.8;color:var(--ink-soft)}

.cta-band{
  position:relative;border-radius:16px;overflow:hidden;color:#EDF3F1;
  background:linear-gradient(rgba(14,62,57,.9),rgba(14,62,57,.9)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:56px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:26px;line-height:1.4;font-weight:700;color:#fff;margin:0 0 10px;letter-spacing:-.01em}
.cta-band p{font-size:15px;line-height:1.8;color:#C9DAD6;max-width:560px;margin:0}
.cta-band .btn-light{background:#fff;color:var(--brand-deep);border-color:#fff}
.cta-band .btn-light:hover{background:var(--brand-mist);transform:translateY(-1px)}
.cta-band .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.12)}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

.empty-state{padding:56px 24px;text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);max-width:720px}
.empty-state p{font-size:16px;color:var(--ink-soft);margin:16px 0 20px}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:#C9DAD6;font-size:14px}
.site-footer h3{font-size:14px;font-weight:700;color:#EDF3F1;margin:0 0 14px;letter-spacing:.02em}
.footer-link{display:block;font-size:13.5px;line-height:1.7;color:#C9DAD6;padding:5px 0;transition:color .18s ease}
.footer-link:hover{color:#fff}
.footer-hr{height:1px;background:rgba(255,255,255,.12)}
.site-footer a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .header-inner{height:70px}
  .site-header.is-scrolled .header-inner{height:64px}
  .article-title{font-size:28px}
  .article-body{font-size:16px;max-width:100%}
  .side{position:static}
  .cta-band{padding:44px 28px}
  .cta-band h2{font-size:22px}
}
@media (min-width:1024px){
  .nav-drawer{display:none !important}
  .nav-toggle{display:none}
}
@media (max-width:767px){
  .article-title{font-size:26px}
  .section{padding:48px 0}
  .support-grid{grid-template-columns:1fr}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:18px}
  .article-body table{font-size:14px}
  .cta-band{padding:36px 22px;border-radius:12px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .article-meta{gap:8px 14px}
}
@media (max-width:519px){
  .wrap{padding:0 18px}
  .article-title{font-size:24px}
  .breadcrumb{padding-top:16px}
}

/* roulang page: category2 */
:root{
  --ink:#1B2320;
  --ink-2:#5F6E68;
  --ink-3:#9AA5A1;
  --brand:#14524B;
  --brand-d:#0E3E39;
  --brand-l:#6FA8A0;
  --brand-mist:#EDF3F1;
  --clay:#C4703A;
  --clay-mist:#F3E3D6;
  --paper:#FAF8F4;
  --card:#FFFFFF;
  --line:#E7E2D8;
  --radius:12px;
  --radius-sm:8px;
  --shadow-1:0 1px 2px rgba(20,40,36,.06);
  --shadow-2:0 10px 28px rgba(20,40,36,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  -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{margin:0;line-height:1.4;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.tnum{font-variant-numeric:tabular-nums}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:1024px){.wrap{padding-left:32px;padding-right:32px}}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--brand-d);color:#C9DAD6;font-size:12.5px}
.topbar a{color:#EDF3F1}
.topbar a:hover{color:#F3E3D6}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.95);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(6px);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(20,40,36,.08)}
.nav-inner{height:72px;transition:height .2s ease}
.site-header.is-scrolled .nav-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(140deg,#14524B,#0E3E39);
  color:#EDF3F1;font-size:14px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.brand-name{font-size:16px;font-weight:600;color:var(--brand-d);letter-spacing:-.01em}
.brand-sub{font-size:11.5px;color:var(--ink-3);letter-spacing:.04em}

.nav-link{
  position:relative;font-size:16px;color:var(--ink);
  padding:6px 0;transition:color .18s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;
  background:var(--clay);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-d);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}

/* Mega 面板 */
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  font-size:16px;color:var(--ink);background:none;border:0;padding:6px 0;cursor:pointer;
  position:relative;transition:color .18s ease;
}
.mega-trigger::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;background:var(--clay);
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.mega-wrap:hover .mega-trigger,.mega-wrap:focus-within .mega-trigger{color:var(--brand)}
.mega-wrap:hover .mega-trigger::after,.mega-wrap:focus-within .mega-trigger::after{transform:scaleX(1)}
.mega-caret{transition:transform .2s ease}
.mega-wrap:hover .mega-caret,.mega-wrap:focus-within .mega-caret{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);
  width:820px;max-width:calc(100vw - 48px);
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:0 14px 40px rgba(20,40,36,.12);
  padding:24px;
  display:grid;grid-template-columns:1fr 1fr 240px;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-title{font-size:12.5px;color:var(--ink-3);letter-spacing:.06em;margin-bottom:12px}
.mega-cat{display:flex;align-items:center;gap:8px;padding:6px 0;font-size:14.5px;color:var(--ink);transition:color .16s ease}
.mega-cat:hover{color:var(--brand)}
.mega-dot{width:6px;height:6px;border-radius:999px;background:var(--brand-l);flex:none}
.mega-item{display:block;padding:7px 0;font-size:14.5px;color:var(--ink);transition:color .16s ease}
.mega-item:hover{color:var(--brand)}
.mega-date{font-size:12.5px;color:var(--ink-3)}
.mega-card{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--paper)}
.mega-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.mega-card-body{padding:14px}
.mega-card-body p{font-size:14px;line-height:1.7;color:var(--ink)}

/* 移动端抽屉 */
.mobile-menu{position:relative}
.mobile-menu summary{
  list-style:none;cursor:pointer;width:42px;height:42px;border:1px solid var(--line);
  border-radius:8px;display:flex;align-items:center;justify-content:center;background:#fff;
}
.mobile-menu summary::-webkit-details-marker{display:none}
.mobile-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:min(88vw,320px);
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:0 14px 40px rgba(20,40,36,.12);padding:8px 18px 18px;
}
.mobile-panel a{display:block;padding:12px 0;border-bottom:1px solid var(--line);font-size:15.5px;color:var(--ink)}
.mobile-panel a:last-of-type{border-bottom:0}
.mobile-panel a.is-active{color:var(--brand-d);font-weight:600}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15.5px;padding:12px 22px;border-radius:8px;border:1px solid transparent;
  cursor:pointer;transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  min-height:44px;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-d);transform:translateY(-1px);box-shadow:0 8px 20px rgba(20,40,36,.18)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-secondary{background:#fff;border-color:var(--brand);color:var(--brand)}
.btn-secondary:hover{background:var(--brand-mist)}
.btn-ghost{background:transparent;color:var(--brand);padding:6px 0;min-height:auto;border:0}
.btn-ghost:hover{color:var(--clay)}
.btn-ghost span{border-bottom:1px solid currentColor;padding-bottom:2px}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.72);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-1px)}
.btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--clay);outline-offset:2px;
}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;
  padding:4px 10px;border-radius:999px;line-height:1.6;
}
.badge-brand{background:var(--brand-mist);color:var(--brand-d)}
.badge-clay{background:var(--clay-mist);color:#8E4E22}
.badge-line{border:1px solid var(--line);color:var(--ink-2);background:transparent}
.badge-dot{width:6px;height:6px;border-radius:999px;background:var(--brand-l)}

/* ============ 页面横幅 ============ */
.page-banner{
  position:relative;
  min-height:280px;
  background-image:linear-gradient(rgba(14,62,57,.74),rgba(14,62,57,.74)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  display:flex;align-items:center;
}
.page-banner h1{color:#fff;font-size:32px;letter-spacing:-.01em;line-height:1.35}
@media(min-width:1024px){.page-banner h1{font-size:36px}}
@media(max-width:640px){.page-banner h1{font-size:25px}.page-banner{min-height:240px}}
.breadcrumb{font-size:13.5px;color:rgba(237,243,241,.82)}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.sep{margin:0 8px;opacity:.6}
.breadcrumb .current{color:rgba(237,243,241,.68)}
.anchor-nav a{
  font-size:14px;color:rgba(237,243,241,.88);padding-bottom:4px;
  border-bottom:2px solid transparent;transition:border-color .18s ease,color .18s ease;
}
.anchor-nav a:hover{color:#fff;border-color:var(--clay)}
.anchor-nav a.is-current{color:#fff;border-color:var(--clay)}

/* ============ 通用板块 ============ */
.section{padding-top:88px;padding-bottom:88px}
@media(max-width:1023px){.section{padding-top:70px;padding-bottom:70px}}
@media(max-width:640px){.section{padding-top:56px;padding-bottom:56px}}
.section-mist{background:var(--brand-mist)}
.sec-title{font-size:26px;letter-spacing:-.01em;color:var(--brand-d)}
@media(max-width:640px){.sec-title{font-size:22px}}
.sec-desc{color:var(--ink-2);font-size:15.5px;line-height:1.9;max-width:640px}
.hairline{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent)}

/* ============ 要点清单（左栏） ============ */
.point-list li+li{border-top:1px solid var(--line)}
.point-list a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 4px;font-size:15.5px;color:var(--ink-2);transition:color .16s ease,padding-left .16s ease;
}
.point-list a:hover{color:var(--brand-d);padding-left:10px}
.point-list .idx{font-size:12.5px;color:var(--ink-3);font-variant-numeric:tabular-nums}

/* ============ 图文卡 ============ */
.info-card{
  background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:box-shadow .2s ease,border-color .2s ease,transform .2s ease;
}
.info-card:hover{border-color:var(--brand-l);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.info-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.info-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.info-card h3{font-size:17.5px;color:var(--ink);transition:color .18s ease}
.info-card:hover h3{color:var(--brand-d)}
.info-card p{font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ============ 自查清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(1,minmax(0,1fr));gap:16px}
@media(min-width:640px){.check-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.check-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.check-box{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;
  box-shadow:var(--shadow-1);transition:border-color .2s ease,box-shadow .2s ease;
}
.check-box:hover{border-color:var(--brand-l);box-shadow:var(--shadow-2)}
.check-mark{
  width:22px;height:22px;border-radius:6px;border:1px solid var(--brand-l);
  display:flex;align-items:center;justify-content:center;color:var(--brand);flex:none;
}
.check-box p{margin-top:12px;font-size:14.5px;color:var(--ink);line-height:1.7}
.check-box small{display:block;margin-top:6px;font-size:13px;color:var(--ink-3);line-height:1.7}

/* ============ 处理步骤 ============ */
.step-grid{display:grid;grid-template-columns:repeat(1,minmax(0,1fr));gap:20px}
@media(min-width:768px){.step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.step-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;
  box-shadow:var(--shadow-1);position:relative;transition:border-color .2s ease,box-shadow .2s ease;
}
.step-card:hover{border-color:var(--brand-l);box-shadow:var(--shadow-2)}
.step-no{
  width:32px;height:32px;border-radius:6px 6px 24px 6px;background:var(--clay);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.step-card h3{font-size:17px;margin-bottom:8px;color:var(--brand-d)}
.step-card p{font-size:14.5px;color:var(--ink-2);line-height:1.85}

/* ============ FAQ ============ */
.faq-list{max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:12px 0 12px 18px;font-size:17px;font-weight:500;color:var(--ink);
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--clay);
  transform:scaleY(0);transform-origin:top;transition:transform .2s ease-out;
}
.faq-item summary:hover{color:var(--brand)}
.faq-item[open] summary{color:var(--brand-d)}
.faq-item[open] summary::before{transform:scaleY(1)}
.faq-chev{color:var(--ink-3);transition:transform .2s ease-out,color .2s ease-out;flex:none}
.faq-item[open] .faq-chev{transform:rotate(90deg);color:var(--brand)}
.faq-answer{padding:0 0 20px 18px;font-size:15.5px;line-height:1.85;color:var(--ink-2);max-width:760px}

/* ============ 通栏 CTA ============ */
.cta-band{
  background-image:linear-gradient(rgba(14,62,57,.84),rgba(14,62,57,.84)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  padding:72px 0;
}
@media(max-width:640px){.cta-band{padding:56px 0}}
.cta-band h2{color:#fff;font-size:26px;letter-spacing:-.01em}
@media(max-width:640px){.cta-band h2{font-size:22px}}
.cta-band p{color:#C9DAD6;font-size:15.5px;line-height:1.9;max-width:560px}

/* ============ 相关分类卡 ============ */
.rel-card{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:8px;
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.rel-card:hover{border-color:var(--brand-l);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.rel-card h3{font-size:17px;color:var(--brand-d)}
.rel-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.rel-card.is-current{background:var(--brand-mist);border-color:var(--brand-mist);box-shadow:none;cursor:default}
.rel-card.is-current h3{color:var(--brand-d)}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-d);color:#C9DAD6;font-size:14px}
.site-footer h3{font-size:14px;color:#EDF3F1;margin-bottom:14px;font-weight:600}
.footer-link{display:block;padding:6px 0;color:#C9DAD6;transition:color .16s ease}
.footer-link:hover{color:#F3E3D6}
.footer-hr{height:1px;background:rgba(255,255,255,.12)}
.clamp-1{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:260px}

/* roulang page: category3 */
:root{
  --pine:#14524B; --pine-deep:#0E3E39; --pine-soft:#6FA8A0; --pine-mist:#EDF3F1;
  --clay:#C4703A; --clay-mist:#F3E3D6;
  --paper:#FAF8F4; --card:#FFFFFF; --line:#E7E2D8;
  --ink:#1B2320; --ink-2:#5F6E68; --mute:#9AA5A1;
  --r-card:12px; --r-btn:8px;
  --sh-1:0 1px 2px rgba(20,40,36,.06);
  --sh-2:0 10px 28px rgba(20,40,36,.10);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--paper); color:var(--ink);
  font-size:16.5px; line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3{margin:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
h1{line-height:1.3;letter-spacing:-.01em;}
h2{line-height:1.4;letter-spacing:-.01em;}
h3{line-height:1.4;}
.tnum{font-variant-numeric:tabular-nums;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (max-width:640px){ .wrap{padding:0 20px;} }

/* ============ 顶部信息条 ============ */
.topbar{background:var(--pine-deep);color:#EDF3F1;font-size:12.5px;}
.topbar a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,248,244,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  box-shadow:0 1px 2px rgba(20,40,36,.06), 0 8px 24px rgba(20,40,36,.05);
  border-bottom-color:var(--line);
}
.nav-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:24px;transition:height .22s ease;}
@media (min-width:1024px){
  .nav-inner{height:78px;}
  .site-header.is-scrolled .nav-inner{height:70px;}
}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--pine);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;flex-shrink:0;}

.nav-link{position:relative;font-size:16px;color:var(--ink);padding:6px 0;transition:color .18s ease;}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--clay);
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-link:hover{color:var(--pine);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--pine-deep);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}

/* Mega 面板 */
.mega-wrap{position:relative;}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:780px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:0 14px 40px rgba(20,40,36,.12);
  padding:22px;opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease-out, transform .2s ease-out, visibility .2s;
  pointer-events:none;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;}
.mega-title{font-size:12.5px;font-weight:600;letter-spacing:.04em;color:var(--mute);margin:0 0 12px;}
.mega-cat{display:block;padding:9px 0;font-size:14.5px;color:var(--ink);}
.mega-cat:hover{color:var(--pine);}
.mega-cat span{display:block;font-size:12.5px;color:var(--mute);margin-top:2px;line-height:1.6;}
.mega-post{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 0;font-size:14px;color:var(--ink-2);}
.mega-post:hover{color:var(--pine);}
.mega-post time{font-size:12px;color:var(--mute);flex-shrink:0;}
.mega-card{background:var(--pine-mist);border-radius:12px;padding:14px;}

/* 移动抽屉 */
.drawer-link{display:block;padding:11px 12px;font-size:15px;border-radius:8px;color:var(--ink);}
.drawer-link:hover{background:var(--pine-mist);color:var(--pine);}
.drawer-link.is-active{background:var(--pine-mist);color:var(--pine);font-weight:600;}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:16px;font-weight:500;padding:12px 22px;border-radius:var(--r-btn);
  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:focus-visible{outline:2px solid var(--clay);outline-offset:2px;}
.btn-primary{background:var(--pine);color:#fff;}
.btn-primary:hover{background:var(--pine-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(20,40,36,.18);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-secondary{background:#fff;border-color:var(--pine);color:var(--pine);}
.btn-secondary:hover{background:var(--pine-mist);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.75);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-1px);}
.btn-sm{font-size:14px;padding:9px 18px;}

.badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;line-height:1.6;padding:4px 10px;border-radius:999px;}
.badge-pine{background:var(--pine-mist);color:var(--pine);}
.badge-pine::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--pine-soft);}
.badge-clay{background:var(--clay-mist);color:#9E5528;}
.badge-time{border:1px solid var(--line);color:var(--ink-2);background:transparent;}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease,background .2s ease;
}
.card:hover{border-color:var(--pine-soft);box-shadow:var(--sh-2);transform:translateY(-2px);}
.card:hover .card-title{color:var(--pine);}
.card-title{font-size:17.5px;font-weight:600;color:var(--ink);transition:color .2s ease;}
.card.is-current{background:var(--pine-mist);border-style:dashed;border-color:#CFDEDA;box-shadow:none;transform:none;cursor:default;}
.card.is-current:hover{transform:none;box-shadow:none;border-color:#CFDEDA;}

.img-frame{overflow:hidden;border-radius:10px;background:var(--pine-mist);}
.img-frame img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .img-frame img{transform:scale(1.03);}

.clamp-1{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:500;
  color:var(--pine);border-bottom:1px solid rgba(20,82,75,.35);padding-bottom:2px;
  transition:color .18s ease,border-color .18s ease,gap .18s ease;
}
.link-arrow:hover{color:var(--clay);border-color:var(--clay);gap:10px;}

.section-title{font-size:26px;font-weight:600;color:var(--pine-deep);}
@media (max-width:767px){ .section-title{font-size:22px;} }
.section-sub{font-size:15.5px;color:var(--ink-2);line-height:1.85;}

/* 面包屑（浅底） */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);}
.breadcrumb .sep{color:var(--mute);}
.breadcrumb .current{color:var(--ink);font-weight:500;}

/* 锚点导航 */
.anchor-nav{display:flex;flex-wrap:wrap;gap:6px 22px;}
.anchor-nav a{
  font-size:14.5px;color:var(--ink-2);padding-bottom:4px;border-bottom:2px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.anchor-nav a:hover{color:var(--pine);border-bottom-color:var(--pine-soft);}
.anchor-nav a.is-current{color:var(--pine-deep);font-weight:600;border-bottom-color:var(--pine);}

/* 规格表 */
.spec-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.spec-table{width:100%;min-width:760px;border-collapse:collapse;font-size:14.5px;background:#fff;}
.spec-table th{
  background:var(--pine-mist);color:var(--pine-deep);font-weight:600;
  text-align:left;padding:14px 16px;border:1px solid var(--line);white-space:nowrap;
}
.spec-table td{padding:14px 16px;border:1px solid var(--line);color:var(--ink-2);line-height:1.75;}
.spec-table tbody tr:nth-child(even){background:var(--paper);}
.spec-table tbody tr:hover{background:var(--pine-mist);}
.spec-table td strong{color:var(--ink);font-weight:600;}

/* 排行列表 */
.rank-list{list-style:none;border-top:1px solid var(--line);}
.rank-item{display:flex;align-items:flex-start;gap:16px;padding:20px 10px;border-bottom:1px solid var(--line);transition:background .2s ease;}
.rank-item:hover{background:#fff;}
.rank-no{
  width:32px;height:32px;border-radius:6px;background:var(--clay);color:#fff;
  font-size:13.5px;font-weight:600;display:flex;align-items:center;justify-content:center;
  flex-shrink:0;font-variant-numeric:tabular-nums;
}
.rank-body h3{font-size:17px;font-weight:600;}
.rank-body p{font-size:14.5px;color:var(--ink-2);line-height:1.75;margin-top:4px;}
@media (max-width:640px){
  .rank-item{flex-wrap:wrap;}
  .rank-item .rank-link{margin-left:48px;}
}

/* 数据条 */
.stat-item{padding:0 4px;}
.stat-num{font-size:clamp(24px,2.6vw,34px);font-weight:600;color:var(--pine-deep);line-height:1.2;font-variant-numeric:tabular-nums;}
.stat-label{font-size:13.5px;color:var(--ink-2);margin-top:8px;}
@media (min-width:1024px){
  .stat-item{border-left:1px solid #D8E3E0;padding:0 28px;}
  .stat-item:first-child{border-left:none;padding-left:0;}
}

/* FAQ */
.faq-group{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 4px 14px 16px;font-size:17px;font-weight:500;color:var(--ink);
  cursor:pointer;list-style:none;transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;background:var(--clay);
  transform:scaleY(0);transform-origin:top;transition:transform .2s ease;
}
.faq-item[open] summary::before{transform:scaleY(1);}
.faq-item[open] summary{color:var(--pine);}
.faq-item summary:hover{color:var(--pine);}
.faq-icon{flex-shrink:0;color:var(--mute);transition:transform .2s ease,color .2s ease;}
.faq-item[open] .faq-icon{transform:rotate(90deg);color:var(--clay);}
.faq-body{padding:12px 16px 20px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:680px;}

/* 页脚 */
.site-footer{background:var(--pine-deep);color:#C9DAD6;font-size:14px;}
.site-footer h3{color:#EDF3F1;font-size:14px;font-weight:600;margin-bottom:14px;}
.footer-link{display:block;color:#C9DAD6;font-size:13.5px;line-height:1.9;padding:3px 0;transition:color .18s ease;}
.footer-link:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-hr{height:1px;background:rgba(255,255,255,.12);}
.site-footer a:focus-visible{outline:2px solid var(--clay);outline-offset:2px;}

@media (max-width:640px){
  .btn{min-height:44px;}
  .btn-block-mobile{width:100%;}
}

/* roulang page: category4 */
:root{
    --paper:#FAF8F4;
    --card:#FFFFFF;
    --line:#E7E2D8;
    --ink:#1B2320;
    --muted:#5F6E68;
    --disabled:#9AA5A1;
    --primary:#14524B;
    --primary-dark:#0E3E39;
    --primary-light:#6FA8A0;
    --mist:#EDF3F1;
    --clay:#C4703A;
    --clay-mist:#F3E3D6;
    --shadow-1:0 1px 2px rgba(20,40,36,.06);
    --shadow-2:0 10px 28px rgba(20,40,36,.10);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Microsoft YaHei',system-ui,sans-serif;
    font-size:16.5px;
    line-height:1.9;
    font-variant-numeric:tabular-nums;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font:inherit;color:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul,ol{padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--clay);outline-offset:2px;border-radius:4px;}

  .wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:1024px){ .wrap{padding-left:32px;padding-right:32px;} }

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

  .sect-title{font-size:24px;line-height:1.4;letter-spacing:-.01em;color:var(--primary-dark);font-weight:600;}
  @media (min-width:768px){ .sect-title{font-size:27px;} }
  .sect-sub{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.85;max-width:660px;}

  .fade-line{height:1px;background:linear-gradient(90deg,rgba(231,226,216,0) 0%,#E7E2D8 50%,rgba(231,226,216,0) 100%);}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.95);
    backdrop-filter:saturate(140%) blur(10px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .2s ease,background .2s ease;
  }
  .site-header.is-scrolled{box-shadow:0 6px 22px rgba(20,40,36,.10);}
  .topbar{background:var(--primary-dark);color:var(--mist);font-size:12.5px;letter-spacing:.01em;}
  .topbar a{color:#EDF3F1;border-bottom:1px solid rgba(237,243,241,.4);transition:.18s;}
  .topbar a:hover{color:#fff;border-bottom-color:#fff;}
  .header-inner{height:74px;transition:height .2s ease;}
  .site-header.is-scrolled .header-inner{height:66px;}

  .logo-mark{
    width:38px;height:38px;border-radius:10px;background:var(--primary);color:#fff;
    display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;letter-spacing:.02em;
  }
  .logo-text{font-size:17px;font-weight:600;color:var(--primary-dark);line-height:1.2;}
  .logo-sub{font-size:11.5px;color:var(--muted);line-height:1.2;letter-spacing:.04em;}

  .nav-link{position:relative;display:inline-block;font-size:16px;color:var(--ink);padding:8px 0;transition:color .18s ease;}
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;background:var(--clay);
    transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
  }
  .nav-link:hover{color:var(--primary);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.is-active{color:var(--primary-dark);font-weight:500;}
  .nav-link.is-active::after{transform:scaleX(1);}

  .more-trigger{
    display:inline-flex;align-items:center;gap:6px;font-size:15.5px;color:var(--ink);
    padding:9px 14px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer;transition:.18s ease;
  }
  .more-trigger:hover{border-color:var(--primary-light);color:var(--primary);background:var(--mist);}

  .mega-panel{
    position:absolute;right:0;top:calc(100% + 14px);width:800px;
    background:#fff;border:1px solid var(--line);border-radius:12px;
    box-shadow:0 14px 40px rgba(20,40,36,.12);
    padding:24px;opacity:0;visibility:hidden;transform:translateY(8px);
    transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
    z-index:70;
  }
  .group:hover .mega-panel,
  .group:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}

  .mega-title{font-size:13px;color:var(--muted);letter-spacing:.08em;margin-bottom:14px;}
  .mega-link{display:flex;align-items:center;gap:8px;padding:6px 0;font-size:14.5px;color:var(--ink);transition:.18s;}
  .mega-link:hover{color:var(--primary);}
  .mega-date{font-size:12.5px;color:var(--disabled);}

  .badge{
    display:inline-flex;align-items:center;gap:6px;font-size:12.5px;line-height:1.4;
    padding:4px 10px;border-radius:999px;background:var(--mist);color:var(--primary-dark);
  }
  .badge::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary-light);}
  .badge-clay{background:var(--clay-mist);color:#8A4A20;}
  .badge-clay::before{background:var(--clay);}
  .badge-line{background:transparent;border:1px solid var(--line);color:var(--muted);}
  .badge-line::before{display:none;}

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:15.5px;font-weight:500;padding:12px 22px;border-radius:8px;
    border:1px solid transparent;cursor:pointer;min-height:44px;
    transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .btn-primary{background:var(--primary);color:#fff;}
  .btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
  .btn-secondary{background:#fff;border-color:var(--primary);color:var(--primary);}
  .btn-secondary:hover{background:var(--mist);transform:translateY(-1px);}
  .btn-secondary:active{transform:translateY(0);}
  .btn-outline-light{background:transparent;border-color:rgba(255,255,255,.7);color:#fff;}
  .btn-outline-light:hover{background:#fff;color:var(--primary-dark);border-color:#fff;transform:translateY(-1px);}
  .btn-link{
    display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--primary);
    border-bottom:1px solid rgba(20,82,75,.35);padding-bottom:2px;transition:.18s;
  }
  .btn-link:hover{color:var(--clay);border-bottom-color:var(--clay);}
  .btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

  /* ---------- Banner ---------- */
  .banner{position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
  .banner-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
  .banner-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,62,57,.88) 0%,rgba(14,62,57,.72) 48%,rgba(14,62,57,.42) 100%);}
  .banner-inner{position:relative;padding:52px 0 56px;min-height:240px;display:flex;flex-direction:column;justify-content:center;}
  @media (min-width:1024px){ .banner-inner{padding:64px 0 68px;min-height:276px;} }
  .crumb{font-size:13.5px;color:rgba(237,243,241,.78);display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
  .crumb a{transition:.18s;}
  .crumb a:hover{color:#fff;}
  .crumb .sep{color:rgba(237,243,241,.45);}
  .page-h1{font-size:27px;line-height:1.35;letter-spacing:-.01em;color:#fff;font-weight:600;margin-top:16px;max-width:820px;}
  @media (min-width:768px){ .page-h1{font-size:32px;} }
  @media (min-width:1024px){ .page-h1{font-size:36px;} }
  .banner-lead{margin-top:14px;color:rgba(237,243,241,.88);font-size:15.5px;line-height:1.85;max-width:640px;}
  .anchor-nav{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:22px;}
  .anchor-nav a{font-size:14px;color:rgba(237,243,241,.85);padding-bottom:4px;border-bottom:2px solid transparent;transition:.18s;}
  .anchor-nav a:hover{color:#fff;border-bottom-color:var(--clay);}

  /* ---------- Search ---------- */
  .search-box{
    display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);
    border-radius:12px;padding:10px 12px;box-shadow:var(--shadow-1);transition:.18s ease;
  }
  .search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--mist);}
  .search-box .search-icon{color:var(--primary-light);flex:none;}
  .search-box input{flex:1;min-width:0;border:0;outline:none;background:transparent;font-size:15.5px;min-height:40px;}
  .search-box input::placeholder{color:var(--disabled);}
  .chip{
    display:inline-flex;align-items:center;font-size:13.5px;color:var(--muted);
    padding:6px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;transition:.18s ease;
  }
  .chip:hover{color:var(--primary);border-color:var(--primary-light);background:var(--mist);}

  /* ---------- Entry cards ---------- */
  .entry-card{
    background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;
    display:flex;flex-direction:column;gap:12px;height:100%;transition:.2s ease;
  }
  .entry-card:hover{transform:translateY(-4px);border-color:var(--primary-light);box-shadow:var(--shadow-2);}
  .entry-card:hover .entry-title{color:var(--primary);}
  .entry-icon{
    width:44px;height:44px;border-radius:10px;background:var(--mist);color:var(--primary);
    display:flex;align-items:center;justify-content:center;flex:none;
  }
  .entry-title{font-size:17px;font-weight:600;color:var(--ink);transition:color .18s ease;}
  .entry-desc{font-size:14.5px;line-height:1.8;color:var(--muted);}
  .entry-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:13.5px;color:var(--primary);display:flex;align-items:center;gap:6px;}

  /* ---------- Response strip ---------- */
  .strip{background:var(--mist);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .strip-item{padding:22px 0;}
  .strip-item .num{font-size:26px;color:var(--primary-dark);font-weight:600;line-height:1.2;}
  .strip-item .label{font-size:14.5px;font-weight:500;color:var(--ink);margin-top:10px;}
  .strip-item .text{font-size:14px;color:var(--muted);line-height:1.8;margin-top:6px;}
  @media (min-width:768px){
    .strip-item{padding:0 24px;border-left:1px solid rgba(20,82,75,.16);}
    .strip-item:first-child{border-left:0;padding-left:0;}
  }

  /* ---------- FAQ ---------- */
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item summary{
    list-style:none;cursor:pointer;position:relative;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    min-height:56px;padding:14px 0 14px 16px;
    font-size:16.5px;font-weight:500;color:var(--ink);transition:color .18s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::before{
    content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:2px;
    background:var(--clay);opacity:0;transition:opacity .18s ease;
  }
  .faq-item summary:hover{color:var(--primary);}
  .faq-item[open] summary{color:var(--primary-dark);}
  .faq-item[open] summary::before{opacity:1;}
  .faq-arrow{flex:none;color:var(--primary-light);transition:transform .2s ease;}
  .faq-item[open] .faq-arrow{transform:rotate(90deg);}
  .faq-body{padding:12px 0 18px 16px;font-size:15px;line-height:1.85;color:var(--muted);max-width:720px;}

  /* ---------- CTA band ---------- */
  .cta-band{position:relative;background:var(--primary-dark);overflow:hidden;}
  .cta-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.28;}
  .cta-mask{position:absolute;inset:0;background:rgba(14,62,57,.62);}
  .cta-inner{position:relative;padding:56px 0;}
  @media (min-width:1024px){ .cta-inner{padding:72px 0;} }
  .cta-title{font-size:24px;line-height:1.4;color:#fff;font-weight:600;letter-spacing:-.01em;}
  @media (min-width:768px){ .cta-title{font-size:28px;} }
  .cta-text{margin-top:12px;color:rgba(237,243,241,.85);font-size:15.5px;line-height:1.85;max-width:560px;}

  /* ---------- Cross links ---------- */
  .cross-card{
    background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;
    display:flex;flex-direction:column;height:100%;transition:.2s ease;
  }
  .cross-card:hover{transform:translateY(-4px);border-color:var(--primary-light);box-shadow:var(--shadow-2);}
  .cross-card:hover .cross-title{color:var(--primary);}
  .cross-thumb{position:relative;width:100%;aspect-ratio:4/3;background:var(--mist);overflow:hidden;}
  .cross-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
  .cross-card:hover .cross-thumb img{transform:scale(1.04);}
  .cross-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1;}
  .cross-title{font-size:16.5px;font-weight:600;color:var(--ink);transition:color .18s ease;}
  .cross-desc{font-size:14px;color:var(--muted);line-height:1.8;}
  .cross-card.is-current{border-color:var(--line);background:var(--paper);opacity:.72;}
  .cross-card.is-current:hover{transform:none;box-shadow:none;border-color:var(--line);}
  .cross-card.is-current .cross-thumb img{filter:grayscale(100%);}

  .clamp-1{overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;}
  .clamp-2{overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
  .clamp-3{overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;}

  /* ---------- Mobile drawer ---------- */
  .drawer{position:relative;}
  .drawer > summary{
    list-style:none;cursor:pointer;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
    display:flex;align-items:center;justify-content:center;background:#fff;transition:.18s;
  }
  .drawer > summary::-webkit-details-marker{display:none;}
  .drawer > summary:hover{border-color:var(--primary-light);background:var(--mist);}
  .drawer-panel{
    position:absolute;right:0;top:calc(100% + 12px);width:min(88vw,320px);
    background:#fff;border:1px solid var(--line);border-radius:12px;
    box-shadow:0 14px 40px rgba(20,40,36,.12);padding:10px 16px 16px;z-index:80;
  }
  .drawer-panel a{display:block;font-size:15.5px;color:var(--ink);padding:13px 0;border-bottom:1px solid var(--line);transition:.18s;}
  .drawer-panel a:last-child{border-bottom:0;}
  .drawer-panel a:hover{color:var(--primary);}
  .drawer-panel a.is-active{color:var(--primary-dark);font-weight:500;}
  .drawer-note{font-size:12.5px;color:var(--disabled);padding:12px 0 0;letter-spacing:.04em;}

  /* ---------- Footer ---------- */
  .site-footer{background:var(--primary-dark);color:#C9DAD6;font-size:14px;line-height:1.9;}
  .site-footer h3{color:#EDF3F1;font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:.01em;}
  .footer-link{display:block;font-size:13.5px;color:#C9DAD6;padding:4px 0;transition:color .18s ease;}
  .footer-link:hover{color:#fff;}
  .footer-hr{height:1px;background:rgba(255,255,255,.12);}
  .site-footer a:hover{color:#fff;}

  @media (max-width:639px){
    body{font-size:16px;line-height:1.85;}
    .page-h1{font-size:26px;}
    .sect-title{font-size:22px;}
    .search-box{flex-direction:column;align-items:stretch;padding:14px;}
    .search-box input{min-height:38px;}
    .search-box .btn{width:100%;}
    .cta-title{font-size:22px;}
  }