/* roulang page: index */
:root{
  --ink:#123F3A;
  --ink-deep:#0C2B27;
  --ink-light:#2E6A60;
  --mist:#A9C4BB;
  --orange:#C65324;
  --orange-dark:#A8431B;
  --orange-soft:#F3D9CC;
  --gold:#D8B26A;
  --bg:#F7F2E8;
  --panel:#FFFDF8;
  --warm:#EFE7D9;
  --text:#1B2421;
  --text-2:#5D6A64;
  --text-3:#8A958F;
  --line:#DED6C8;
  --focus:rgba(198,83,36,.35);
  --success:#2F7D5B;
  --warning:#A96B1F;
  --error:#B23A3A;
  --radius:14px;
  --radius-lg:18px;
  --shadow:0 10px 30px rgba(18,63,58,.08);
  --shadow-hover:0 16px 40px rgba(18,63,58,.12);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  padding-bottom:96px;
}
body.lock{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--orange);}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);margin:0;letter-spacing:.02em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px;}
::selection{background:var(--orange-soft);color:var(--ink-deep);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ---------- 按钮 ---------- */
.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:600;white-space:nowrap;
  transition:transform .16s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 18px rgba(198,83,36,.22);}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--ink);}
.btn-ghost:hover{background:var(--warm);color:var(--ink-deep);transform:translateY(-1px);}
.btn-ghost-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6);}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--orange);}
.link-arrow:hover{color:var(--orange-dark);text-decoration:underline;text-underline-offset:3px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.nav-top{display:flex;align-items:center;gap:22px;height:76px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:17px;font-weight:700;letter-spacing:0;
  position:relative;overflow:hidden;
}
.logo-mark::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(to right,rgba(216,178,106,.35) 1px,transparent 1px),linear-gradient(to bottom,rgba(216,178,106,.35) 1px,transparent 1px);
  background-size:50% 50%;
}
.logo-mark span{position:relative;z-index:1;}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-name{font-family:var(--serif);font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.02em;}
.logo-desc{font-size:11px;color:var(--text-3);letter-spacing:.14em;}

.search{position:relative;flex:1;max-width:520px;}
.search-field{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:0 6px 0 16px;height:44px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-field:focus-within{border-color:var(--ink);box-shadow:0 0 0 4px var(--focus);}
.search-field .icon{width:18px;height:18px;flex-shrink:0;color:var(--text-3);}
.search-field input{
  flex:1;min-width:0;border:0;background:transparent;height:100%;
  font-size:14px;color:var(--text);outline:none;
}
.search-field input::placeholder{color:var(--text-3);}
.search-btn{
  height:34px;padding:0 18px;border-radius:999px;
  background:var(--ink);color:#fff;font-size:14px;font-weight:600;
  transition:background-color .18s ease;
}
.search-btn:hover{background:var(--ink-light);}
.search-panel{
  position:absolute;top:calc(100% + 10px);left:0;right:0;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow);padding:16px 18px;z-index:95;
}
.search-panel[hidden]{display:none;}
.search-panel h4{font-size:13px;color:var(--text-3);font-family:var(--sans);font-weight:600;margin-bottom:10px;letter-spacing:.04em;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:999px;background:var(--warm);color:var(--ink-light);
  font-size:13px;transition:background-color .18s ease,color .18s ease;
}
.tag:hover{background:var(--orange-soft);color:var(--orange-dark);}

.nav-actions{display:flex;align-items:center;gap:6px;margin-left:auto;flex-shrink:0;}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 12px;
  font-size:15px;color:var(--text-2);border-radius:9px;
  position:relative;transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--ink);background:var(--warm);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--orange);border-radius:2px;
}
.nav-cta{margin-left:10px;}

.nav-sub{border-top:1px solid var(--line);background:var(--bg);}
.nav-sub-inner{display:flex;align-items:center;gap:14px;height:44px;overflow-x:auto;scrollbar-width:none;}
.nav-sub-inner::-webkit-scrollbar{display:none;}
.nav-sub .nav-link{height:32px;padding:0 10px;font-size:14px;white-space:nowrap;}
.nav-sub .nav-link.is-active::after{left:10px;right:10px;bottom:0;}
.nav-sub-label{font-size:12px;color:var(--text-3);white-space:nowrap;padding-right:2px;border-right:1px solid var(--line);padding-right:14px;}

.mobile-tools{display:none;align-items:center;gap:6px;margin-left:auto;}
.icon-btn{
  width:42px;height:42px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  color:var(--ink);border:1px solid transparent;transition:background-color .18s ease,border-color .18s ease;
}
.icon-btn:hover{background:var(--warm);border-color:var(--line);}
.icon-btn svg{width:21px;height:21px;}
.mobile-search{display:none;padding:0 0 14px;}
.mobile-search.open{display:block;}
.mobile-search .search{max-width:none;}

/* ---------- Hero ---------- */
.hero{padding:74px 0 78px;position:relative;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  background:var(--orange-soft);color:var(--orange-dark);
  font-size:13px;font-weight:600;letter-spacing:.04em;
}
.hero h1{
  margin-top:20px;
  font-size:clamp(36px,4.2vw,52px);line-height:1.18;font-weight:700;letter-spacing:.02em;
}
.hero h1 .h1-line2{display:block;font-size:.62em;color:var(--ink-light);margin-top:10px;letter-spacing:.04em;}
.hero-lead{margin-top:20px;font-size:17px;color:var(--text-2);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px;}
.hero-tags .tag{background:#fff;border:1px solid var(--line);}
.hero-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow);}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(18,63,58,.42),rgba(12,43,39,.16) 55%,rgba(198,83,36,.18));
}
.hero-grid-lines{
  position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:linear-gradient(to right,rgba(255,255,255,.16) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:33.333% 33.333%;
  opacity:.55;
}
.hero-media-cap{
  position:absolute;left:18px;bottom:16px;z-index:2;
  color:#fff;font-size:13px;letter-spacing:.04em;
  background:rgba(12,43,39,.55);border:1px solid rgba(255,255,255,.22);
  border-radius:999px;padding:6px 14px;
}

/* ---------- 可信信息条 ---------- */
.factbar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--panel);}
.factbar-inner{display:grid;grid-template-columns:repeat(4,1fr);}
.fact{
  display:flex;align-items:center;gap:10px;
  padding:18px 20px;font-size:13px;color:var(--text-2);
  border-right:1px solid var(--line);
}
.fact:last-child{border-right:0;}
.fact svg{width:17px;height:17px;color:var(--ink-light);flex-shrink:0;}

/* ---------- 通用板块 ---------- */
.section{padding:82px 0;}
.section-alt{background:var(--warm);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section-head h2{font-size:clamp(26px,2.6vw,34px);line-height:1.3;font-weight:700;}
.section-label{
  display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--orange);
  font-weight:700;margin-bottom:10px;
}
.section-intro{font-size:15px;color:var(--text-2);margin-top:10px;max-width:640px;}

/* ---------- 卖点横带 ---------- */
.points{border-top:1px solid var(--line);}
.point{
  display:grid;grid-template-columns:110px 1fr auto;align-items:center;gap:28px;
  padding:30px 28px;border-bottom:1px solid var(--line);
  transition:background-color .2s ease;
}
.point:nth-child(odd){background:var(--panel);}
.point:hover{background:var(--warm);}
.point-num{font-family:var(--serif);font-size:40px;font-weight:700;color:var(--gold);line-height:1;letter-spacing:.02em;}
.point-body h3{font-size:21px;font-weight:600;margin-bottom:6px;}
.point-body p{font-size:15px;color:var(--text-2);}
.point-arrow{
  width:42px;height:42px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--ink);
  transition:background-color .2s ease,color .2s ease,transform .2s ease,border-color .2s ease;
}
.point:hover .point-arrow{background:var(--orange);border-color:var(--orange);color:#fff;transform:translateX(3px);}

/* ---------- 场景演示 ---------- */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:36px 0;}
.scene + .scene{border-top:1px dashed var(--line);}
.scene-reverse .scene-media{order:2;}
.scene-media{
  border-radius:var(--radius);overflow:hidden;aspect-ratio:16/10;
  border:1px solid var(--line);box-shadow:var(--shadow);background:var(--panel);
}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.scene-media:hover img{transform:scale(1.03);}
.scene-body h3{font-size:23px;font-weight:600;margin-bottom:12px;}
.scene-body p{font-size:15.5px;color:var(--text-2);max-width:460px;}
.scene-body .link-arrow{margin-top:16px;font-size:14.5px;}
.scene-step{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--text-3);margin-bottom:12px;
}
.scene-step::before{content:"";width:18px;height:2px;background:var(--gold);border-radius:2px;}

/* ---------- 最新信息 ---------- */
.latest-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:32px;align-items:start;}
.feature-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;
  display:block;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.feature-media{aspect-ratio:16/9;overflow:hidden;background:var(--warm);}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature-body{padding:22px 24px 24px;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--orange-soft);color:var(--orange-dark);font-size:12px;font-weight:600;
}
.feature-body h3{font-size:21px;line-height:1.5;margin:12px 0 10px;font-weight:600;color:var(--ink);}
.feature-body p{font-size:14.5px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.feature-meta{display:flex;align-items:center;gap:14px;margin-top:16px;font-size:13px;color:var(--text-3);}
.latest-list{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.latest-item{border-bottom:1px solid var(--line);}
.latest-item:last-child{border-bottom:0;}
.latest-item a{
  display:grid;grid-template-columns:88px 1fr 20px;gap:14px;align-items:center;
  padding:16px 20px;transition:background-color .18s ease;
}
.latest-item a:hover{background:var(--warm);}
.latest-time{font-size:12.5px;color:var(--text-3);letter-spacing:.02em;}
.latest-title{font-size:15.5px;color:var(--ink);font-weight:600;line-height:1.5;}
.latest-cat{display:block;font-size:12px;color:var(--text-3);margin-top:3px;font-weight:400;}
.latest-arrow{color:var(--text-3);display:flex;justify-content:flex-end;}
.latest-item a:hover .latest-arrow{color:var(--orange);}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius);
  background:var(--panel);padding:46px 24px;text-align:center;color:var(--text-2);
}
.empty-state svg{width:34px;height:34px;color:var(--mist);margin:0 auto 14px;}
.empty-state p{font-size:15px;}
.empty-links{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:18px;}

/* ---------- 说明带 ---------- */
.note-band{display:grid;grid-template-columns:1.05fr 1fr;gap:32px;align-items:start;}
.note-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 28px;box-shadow:var(--shadow);
}
.note-card h3{font-size:19px;font-weight:600;margin-bottom:16px;}
.note-row{display:flex;gap:14px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--text-2);}
.note-row:last-child{border-bottom:0;}
.note-row strong{color:var(--ink);font-weight:600;min-width:88px;flex-shrink:0;font-size:14px;}
.mini-faq{display:flex;flex-direction:column;gap:14px;}
.mini-faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;transition:border-color .18s ease,box-shadow .18s ease;
}
.mini-faq-item:hover{border-color:var(--mist);box-shadow:var(--shadow);}
.mini-faq-item h4{font-family:var(--sans);font-size:15.5px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.mini-faq-item p{font-size:14.5px;color:var(--text-2);}
.mini-faq-item .link-arrow{margin-top:12px;font-size:14px;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:320px 1fr;gap:48px;align-items:start;}
.faq-side{position:sticky;top:140px;}
.faq-side h2{font-size:clamp(26px,2.6vw,32px);line-height:1.3;font-weight:700;}
.faq-side p{font-size:15px;color:var(--text-2);margin-top:14px;max-width:280px;}
.faq-side .btn{margin-top:24px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);transition:background-color .18s ease;}
.faq-item.open{background:var(--warm);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 8px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
  font-family:var(--sans);transition:color .18s ease;
}
.faq-q:hover{color:var(--orange);}
.faq-icon{position:relative;width:20px;height:20px;flex-shrink:0;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--orange);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a-inner{padding:0 8px 24px;}
.faq-a-inner p{font-size:15px;line-height:1.8;color:var(--text-2);}
.faq-a-inner p + p{margin-top:10px;}

/* ---------- 底部 CTA 表单 ---------- */
.cta-band{background:var(--ink);color:#fff;position:relative;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(to right,rgba(216,178,106,.1) 1px,transparent 1px),linear-gradient(to bottom,rgba(216,178,106,.1) 1px,transparent 1px);
  background-size:120px 120px;pointer-events:none;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;padding:80px 0;align-items:start;}
.cta-copy h2{color:#fff;font-size:clamp(26px,2.8vw,34px);line-height:1.3;font-weight:700;}
.cta-copy p{color:rgba(255,255,255,.78);font-size:15.5px;margin-top:16px;max-width:420px;}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:10px;}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:rgba(255,255,255,.82);}
.cta-points li::before{content:"";width:6px;height:6px;border-radius:1px;background:var(--gold);flex-shrink:0;}
.ask-form{background:var(--panel);border-radius:var(--radius);padding:26px 26px 24px;box-shadow:0 20px 48px rgba(0,0,0,.22);}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:7px;}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:10px;
  background:#fff;font-size:14.5px;color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 4px var(--focus);}
.field.has-error input,.field.has-error textarea{border-color:var(--error);}
.field-error{display:none;font-size:13px;color:var(--error);margin-top:6px;}
.field.has-error .field-error{display:block;}
.form-note{font-size:13px;color:var(--text-3);margin-top:12px;line-height:1.7;}
.form-note.is-warn{color:var(--warning);background:#FBF3E4;border-radius:8px;padding:10px 12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo-name{color:#fff;font-size:18px;}
.footer-brand p{font-size:14px;line-height:1.85;margin-top:14px;max-width:280px;color:rgba(255,255,255,.62);}
.footer-col h4{font-family:var(--sans);font-size:14px;color:#fff;font-weight:600;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col a:hover{color:var(--gold);}
.footer-contact{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 底部固定条 ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:100;
  background:var(--panel);border-top:1px solid var(--line);
  box-shadow:0 -10px 30px rgba(18,63,58,.1);
  height:64px;display:flex;align-items:center;
}
.sticky-bar .container{display:flex;align-items:center;gap:16px;justify-content:space-between;}
.sticky-text{font-size:14.5px;color:var(--ink);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.sticky-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.bar-close{
  width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  color:var(--text-3);font-size:20px;line-height:1;transition:background-color .18s ease,color .18s ease;
}
.bar-close:hover{background:var(--warm);color:var(--ink);}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:120;background:rgba(12,43,39,.42);
  display:none;align-items:flex-start;justify-content:flex-end;
}
.drawer.open{display:flex;}
.drawer-panel{
  width:min(360px,88vw);height:100%;background:var(--bg);
  padding:20px 22px 32px;overflow-y:auto;
  display:flex;flex-direction:column;gap:22px;
  box-shadow:-18px 0 40px rgba(0,0,0,.18);
  animation:slideIn .22s ease;
}
@keyframes slideIn{from{transform:translateX(24px);opacity:.6;}to{transform:translateX(0);opacity:1;}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-nav{display:flex;flex-direction:column;gap:2px;}
.drawer-nav a{
  padding:12px 12px;border-radius:10px;font-size:15.5px;color:var(--ink);
  transition:background-color .18s ease;
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--warm);}
.drawer-sub{font-size:12px;letter-spacing:.14em;color:var(--text-3);margin-bottom:4px;}
.drawer .search{max-width:none;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .hero-grid{gap:36px;}
}
@media (max-width:1024px){
  .nav-actions .nav-link{padding:0 8px;font-size:14px;}
  .search{max-width:420px;}
  .hero{padding:60px 0 66px;}
  .section{padding:66px 0;}
  .latest-grid{grid-template-columns:1fr;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .faq-side{position:static;}
  .note-band{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;gap:34px;padding:64px 0;}
  .factbar-inner{grid-template-columns:repeat(2,1fr);}
  .fact:nth-child(2){border-right:0;}
  .fact:nth-child(1),.fact:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .nav-actions{display:none;}
  .search{display:none;}
  .mobile-tools{display:flex;}
  .nav-top{height:64px;gap:12px;}
  .logo-desc{display:none;}
  .nav-sub{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{max-width:560px;}
  .scene{grid-template-columns:1fr;gap:22px;padding:26px 0;}
  .scene-reverse .scene-media{order:0;}
  .point{grid-template-columns:66px 1fr auto;gap:18px;padding:24px 18px;}
  .point-num{font-size:32px;}
}
@media (max-width:768px){
  body{padding-bottom:84px;}
  .container{padding:0 18px;}
  .hero{padding:44px 0 50px;}
  .hero-actions{gap:12px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px;}
  .fact{padding:14px 14px;font-size:12.5px;}
  .latest-item a{grid-template-columns:1fr 18px;gap:10px;}
  .latest-time{grid-column:1 / -1;font-size:12px;}
  .sticky-bar{height:56px;}
  .sticky-text{font-size:13.5px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding-bottom:32px;}
  .cta-inner{padding:48px 0;}
  .ask-form{padding:22px 18px;}
  .faq-q{padding:18px 4px;font-size:15.5px;}
}
@media (max-width:520px){
  .hero h1{font-size:clamp(30px,8.4vw,36px);}
  .hero h1 .h1-line2{font-size:.66em;}
  .hero-actions .btn{width:100%;}
  .hero-tags .tag{height:28px;font-size:12.5px;padding:0 12px;}
  .point{grid-template-columns:1fr auto;gap:8px 14px;}
  .point-num{grid-column:1 / -1;font-size:26px;}
  .factbar-inner{grid-template-columns:1fr;}
  .fact{border-right:0;border-bottom:1px solid var(--line);}
  .fact:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .sticky-bar .container{gap:10px;}
  .sticky-text{font-size:12.5px;}
  .sticky-actions .btn{height:38px;padding:0 14px;font-size:13.5px;}
  .feature-body{padding:18px;}
  .note-card{padding:20px;}
}

/* roulang page: article */
:root{
  --ink:#123F3A;
  --ink-deep:#0C2B27;
  --ink-light:#2E6A60;
  --mist:#A9C4BB;
  --orange:#C65324;
  --orange-hover:#A8431B;
  --orange-soft:#F3D9CC;
  --gold:#D8B26A;
  --bg:#F7F2E8;
  --bg-head:#FBF7EF;
  --panel:#FFFDF8;
  --warm:#EFE7D9;
  --text:#1B2421;
  --muted:#5D6A64;
  --faint:#8A958F;
  --line:#DED6C8;
  --focus:0 0 0 3px rgba(198,83,36,.35);
  --r-card:14px;
  --r-media:18px;
  --r-btn:10px;
  --sh:0 10px 30px rgba(18,63,58,.08);
  --sh-hover:0 16px 40px rgba(18,63,58,.12);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:var(--sans);font-size:16px;line-height:1.85;color:var(--text);background:var(--bg);padding-bottom:64px;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--orange);}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
h1,h2,h3,h4{margin:0;font-family:var(--serif);color:var(--ink);letter-spacing:.02em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:8px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:200;}
.skip-link:focus{left:0;color:#fff;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 按钮 / 标签 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;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(--orange);color:#fff;box-shadow:0 8px 20px rgba(198,83,36,.22);}
.btn-primary:hover{background:var(--orange-hover);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(198,83,36,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border:1px solid var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--warm);color:var(--ink);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.badge{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;background:var(--orange-soft);color:var(--orange-hover);font-size:13px;font-weight:600;font-family:var(--sans);}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:var(--warm);color:var(--muted);font-size:13px;transition:background .18s ease,color .18s ease;}
.tag:hover{background:var(--orange-soft);color:var(--orange-hover);}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--bg-head);border-bottom:1px solid var(--line);}
.header-main{display:flex;align-items:center;gap:20px;padding:16px 0 12px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{width:42px;height:42px;border-radius:12px;background:var(--ink);color:var(--gold);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:21px;font-weight:700;flex:0 0 auto;}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-name{font-family:var(--serif);font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.02em;}
.logo-sub{font-size:12px;color:var(--faint);letter-spacing:.04em;}
.search-form{flex:1 1 320px;max-width:520px;margin:0 auto;display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:4px 4px 4px 16px;transition:border-color .18s ease,box-shadow .18s ease;}
.search-form:focus-within{border-color:var(--ink);box-shadow:var(--focus);}
.search-form svg{flex:0 0 auto;color:var(--faint);}
.search-form input[type="search"]{flex:1 1 auto;min-width:0;border:none;outline:none;background:transparent;font-family:inherit;font-size:15px;color:var(--text);height:38px;}
.search-form input[type="search"]::placeholder{color:var(--faint);}
.nav-actions{display:flex;align-items:center;gap:2px;flex:0 0 auto;}
.nav-link{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 12px;font-size:15px;color:var(--ink);border-radius:8px;border-bottom:2px solid transparent;transition:color .18s ease,border-color .18s ease,background .18s ease;}
.nav-link:hover{color:var(--ink-light);border-bottom-color:var(--mist);}
.nav-link.is-active{color:var(--ink);border-bottom-color:var(--orange);font-weight:600;}
.nav-cta{margin-left:10px;}
.header-tools{display:none;align-items:center;gap:6px;margin-left:auto;}
.icon-btn,.menu-toggle{width:42px;height:42px;display:flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);transition:background .18s ease,border-color .18s ease;}
.icon-btn:hover,.menu-toggle:hover{background:var(--warm);}
.menu-toggle{flex-direction:column;gap:4px;}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .18s ease,opacity .18s ease;}
.menu-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.menu-toggle.is-open span:nth-child(2){opacity:0;}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.subnav{border-top:1px solid var(--line);}
.subnav-row{display:flex;align-items:center;gap:10px;padding:9px 0;overflow-x:auto;scrollbar-width:none;}
.subnav-row::-webkit-scrollbar{display:none;}
.subnav-label{font-size:13px;color:var(--faint);flex:0 0 auto;letter-spacing:.04em;}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--faint);padding:20px 0 0;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--orange);}
.crumb-current{color:var(--ink);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 280px;gap:32px;align-items:start;padding-top:22px;padding-bottom:64px;}
.article-main{min-width:0;}
.article-head .badge{margin-bottom:14px;}
.article-head h1{font-size:clamp(28px,3.4vw,42px);line-height:1.26;font-weight:700;color:var(--ink);}
.article-lead{margin-top:16px;font-size:16px;line-height:1.85;color:var(--muted);}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:13px;color:var(--faint);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:12px 0;margin-top:22px;}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-cover{margin:24px 0 0;border-radius:var(--r-media);overflow:hidden;border:1px solid var(--line);}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ---------- 正文排版 ---------- */
.article-body{margin-top:28px;font-size:17px;line-height:1.9;color:var(--text);overflow-wrap:break-word;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{font-size:clamp(21px,2.4vw,27px);line-height:1.36;font-weight:700;margin:2em 0 .8em;padding-left:14px;border-left:4px solid var(--orange);color:var(--ink);}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;margin:1.7em 0 .6em;color:var(--ink);}
.article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em;color:var(--ink-light);}
.article-body a{color:var(--orange);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--orange-hover);}
.article-body img{border-radius:12px;margin:1.2em auto;}
.article-body figure{margin:1.4em 0;}
.article-body figcaption{font-size:13px;color:var(--faint);text-align:center;margin-top:8px;line-height:1.7;}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.1em;}
.article-body ul li{list-style:square;margin:.4em 0;}
.article-body ol li{list-style:decimal;margin:.4em 0;}
.article-body li::marker{color:var(--orange);}
.article-body blockquote{margin:1.4em 0;padding:16px 20px;background:var(--warm);border-left:3px solid var(--gold);border-radius:0 10px 10px 0;color:var(--ink-light);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{width:100%;border-collapse:collapse;margin:1.3em 0;font-size:15px;display:block;overflow-x:auto;white-space:nowrap;}
.article-body th{background:var(--warm);text-align:left;padding:10px 14px;border:1px solid var(--line);color:var(--ink);font-weight:600;}
.article-body td{padding:10px 14px;border:1px solid var(--line);white-space:normal;}
.article-body code{background:var(--warm);padding:2px 6px;border-radius:6px;font-size:.92em;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2em 0;}

/* ---------- 侧栏 ---------- */
.article-aside{position:sticky;top:108px;display:flex;flex-direction:column;gap:20px;}
.toc-card,.aside-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:18px 20px;box-shadow:var(--sh);}
.toc-title,.aside-title{font-family:var(--serif);font-size:16px;font-weight:700;color:var(--ink);margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.toc-title::before,.aside-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--gold);}
.toc-list{border-left:2px solid var(--line);}
.toc-list li a{display:block;padding:6px 0 6px 14px;margin-left:-2px;font-size:14px;line-height:1.55;color:var(--muted);border-left:2px solid transparent;transition:color .18s ease,border-color .18s ease;}
.toc-list li a:hover{color:var(--orange);}
.toc-list li a.is-active{color:var(--ink);font-weight:600;border-left-color:var(--orange);}
.toc-list li.toc-h3 a{padding-left:26px;font-size:13px;}
.aside-links li+li{margin-top:8px;}
.aside-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;border-radius:10px;background:var(--warm);font-size:14px;color:var(--ink);transition:background .18s ease,color .18s ease;}
.aside-links a:hover{background:var(--orange-soft);color:var(--orange-hover);}
.aside-links a span{color:var(--faint);font-size:13px;}
.aside-note{font-size:13px;line-height:1.8;color:var(--muted);margin-top:12px;}

/* ---------- 相关推荐 ---------- */
.related-section{padding:8px 0 64px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;}
.section-kicker{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--warm);color:var(--orange-hover);font-size:12px;letter-spacing:.08em;margin-bottom:10px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.related-card{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh);transition:transform .2s ease,box-shadow .2s ease;}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);}
.related-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.related-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.related-body h3{font-size:18px;line-height:1.45;font-weight:600;}
.related-body p{font-size:14px;line-height:1.75;color:var(--muted);}
.related-link{margin-top:auto;font-size:14px;color:var(--orange);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.related-card:hover .related-link{color:var(--orange-hover);}

/* ---------- 返回 / 提示 ---------- */
.back-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;padding:0 0 72px;}
.notfound{padding:80px 0 100px;text-align:center;}
.notfound h1{font-size:clamp(24px,3vw,34px);margin-bottom:14px;}
.notfound p{color:var(--muted);margin-bottom:26px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:#D9E2DE;padding:56px 0 0;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-name{color:#FFFDF8;}
.footer-brand .logo-mark{background:#fffdf8;color:var(--ink);}
.footer-brand p{font-size:14px;line-height:1.85;color:#A9C4BB;}
.footer-col h4{font-family:var(--sans);font-size:14px;font-weight:600;color:#FFFDF8;letter-spacing:.06em;margin-bottom:14px;}
.footer-col ul li+li{margin-top:10px;}
.footer-col a{font-size:14px;color:#A9C4BB;}
.footer-col a:hover{color:#F3D9CC;}
.footer-contact{font-size:14px;line-height:1.9;color:#A9C4BB;}
.footer-bottom{border-top:1px solid rgba(169,196,187,.22);padding:18px 0 22px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:#8A958F;}

/* ---------- 底部阅读工具条 ---------- */
.reading-bar{position:fixed;left:0;right:0;bottom:0;z-index:70;background:var(--bg-head);border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(18,63,58,.09);}
.reading-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:48px;}
.reading-hint{font-size:13px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.reading-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.rb-link{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;font-size:13px;color:var(--ink);background:var(--warm);transition:background .18s ease,color .18s ease;}
.rb-link:hover{background:var(--orange-soft);color:var(--orange-hover);}
.rb-link.is-primary{background:var(--orange);color:#fff;}
.rb-link.is-primary:hover{background:var(--orange-hover);color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:26px;}
  .nav-link{padding:0 9px;font-size:14px;}
}
@media (max-width:980px){
  .search-form{max-width:340px;flex:1 1 200px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:900px){
  .nav-actions,.search-form,.nav-cta{display:none;}
  .header-tools{display:flex;}
  .header-main{padding:10px 0;}
  .logo-name{font-size:17px;}
  .logo-sub{display:none;}
  .search-form.is-open{display:flex;position:absolute;left:16px;right:16px;top:calc(100% + 8px);max-width:none;margin:0;background:#fff;box-shadow:var(--sh);z-index:90;}
  .nav-actions.is-open{display:flex;flex-direction:column;align-items:stretch;gap:4px;position:absolute;left:0;right:0;top:100%;background:var(--bg-head);border-bottom:1px solid var(--line);padding:14px 20px 20px;box-shadow:var(--sh);z-index:85;}
  .nav-actions.is-open .nav-link{height:46px;padding:0 12px;border-bottom:1px solid var(--line);border-radius:8px;font-size:15px;}
  .nav-actions.is-open .nav-link.is-active{border-bottom-color:var(--line);color:var(--orange);}
  .nav-actions.is-open .nav-cta{display:inline-flex;margin:12px 0 0;}
  .site-header{position:sticky;}
  body.nav-locked{overflow:hidden;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:26px;padding-top:18px;}
  .article-aside{position:static;order:-1;}
  .toc-card{padding:14px 18px;}
  .toc-list{max-height:220px;overflow-y:auto;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
}
@media (max-width:640px){
  body{font-size:15px;padding-bottom:72px;}
  .container{padding:0 16px;}
  .article-head h1{font-size:26px;}
  .article-body{font-size:16px;}
  .article-meta{gap:6px 14px;font-size:12.5px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .reading-bar-inner{height:auto;padding:8px 0;flex-direction:column;align-items:stretch;gap:8px;}
  .reading-hint{display:none;}
  .reading-actions{justify-content:space-between;}
  .rb-link{height:36px;flex:1 1 0;justify-content:center;}
  .back-row{padding-bottom:48px;}
  .related-section{padding-bottom:44px;}
  .subnav-label{display:none;}
}
@media (max-width:420px){
  .logo-mark{width:36px;height:36px;font-size:18px;border-radius:10px;}
  .logo-name{font-size:15px;}
  .btn{height:44px;padding:0 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --ink:#123F3A;
  --ink-deep:#0C2B27;
  --ink-soft:#2E6A60;
  --mist:#A9C4BB;
  --orange:#C65324;
  --orange-dark:#A8431B;
  --orange-soft:#F3D9CC;
  --gold:#D8B26A;
  --bg:#F7F2E8;
  --panel:#FFFDF8;
  --warm:#EFE7D9;
  --text:#1B2421;
  --text-2:#5D6A64;
  --text-3:#8A958F;
  --line:#DED6C8;
  --focus:rgba(198,83,36,.35);
  --ok:#2F7D5B;
  --danger:#B23A3A;
  --r-card:14px;
  --r-media:18px;
  --r-btn:10px;
  --shadow:0 10px 30px rgba(18,63,58,.08);
  --shadow-hover:0 16px 40px rgba(18,63,58,.12);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0 0 88px;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
input{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--serif);color:var(--ink);font-weight:700;}
p{margin:0;}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--ink);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;
}
.skip-link:focus{left:0;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(198,83,36,.22);}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-1px);box-shadow:0 12px 26px rgba(198,83,36,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border:1px solid var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--warm);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:var(--warm);transform:translateY(-1px);}
.btn-outline-light{background:transparent;border:1px solid rgba(255,255,255,.6);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}

/* ============ 顶栏 ============ */
.site-header{position:sticky;top:0;z-index:70;}
.header-top{background:var(--panel);border-bottom:1px solid var(--line);}
.header-top-inner{display:flex;align-items:center;gap:20px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;flex:none;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;background:var(--ink);color:#fff;
  display:grid;place-items:center;font-family:var(--serif);font-size:19px;font-weight:700;
  letter-spacing:0;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-name{font-family:var(--serif);font-size:17px;font-weight:700;color:var(--ink);}
.logo-tag{font-size:11px;color:var(--text-3);letter-spacing:.06em;}

.search{flex:1 1 auto;max-width:520px;margin:0 auto;position:relative;}
.search-form{
  display:flex;align-items:center;gap:8px;
  height:44px;padding:0 6px 0 16px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-form:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px var(--focus);}
.search-form .s-icon{flex:none;width:18px;height:18px;color:var(--text-3);}
.search-input{
  flex:1 1 auto;min-width:0;height:100%;border:none;outline:none;background:transparent;
  font-size:14px;color:var(--text);
}
.search-input::placeholder{color:var(--text-3);}
.search-btn{
  flex:none;height:34px;padding:0 18px;border-radius:999px;
  background:var(--orange);color:#fff;font-size:14px;font-weight:600;
  transition:background-color .18s ease;
}
.search-btn:hover{background:var(--orange-dark);}

.nav-actions{display:flex;align-items:center;gap:2px;flex:none;}
.nav-link{
  position:relative;display:inline-block;padding:9px 11px;border-radius:8px;
  font-size:15px;color:var(--text);transition:background-color .18s ease,color .18s ease;
}
.nav-link:hover{background:var(--warm);color:var(--ink);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:11px;right:11px;bottom:2px;height:2px;
  background:var(--orange);border-radius:2px;
}
.nav-cta{margin-left:10px;}

.header-bottom{background:var(--panel);border-bottom:1px solid var(--line);}
.header-bottom-inner{display:flex;align-items:center;gap:10px;height:46px;overflow:hidden;}
.cat-strip{display:flex;align-items:center;gap:4px;flex:none;}
.cat-strip a{
  font-size:13.5px;color:var(--text-2);padding:5px 10px;border-radius:999px;
  transition:background-color .18s ease,color .18s ease;
}
.cat-strip a:hover{background:var(--warm);color:var(--ink);}
.strip-divider{width:1px;height:16px;background:var(--line);flex:none;margin:0 6px;}
.kw-strip{display:flex;align-items:center;gap:8px;overflow:hidden;}
.kw-tag{
  flex:none;font-size:12.5px;color:var(--ink-soft);background:var(--warm);
  padding:4px 11px;border-radius:999px;border:1px solid var(--line);
  transition:color .18s ease,border-color .18s ease;
}
.kw-tag:hover{color:var(--orange);border-color:var(--orange-soft);}

.icon-btn{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  color:var(--ink);transition:background-color .18s ease;
}
.icon-btn:hover{background:var(--warm);}

/* ============ 抽屉 ============ */
.drawer{position:fixed;inset:0;z-index:120;display:none;}
.drawer.is-open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(12,43,39,.45);}
.drawer-panel{
  position:absolute;top:0;right:0;width:84%;max-width:360px;height:100%;
  background:var(--panel);padding:20px;overflow-y:auto;
  box-shadow:-16px 0 40px rgba(18,63,58,.18);
  display:flex;flex-direction:column;gap:18px;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:18px;color:var(--ink);background:#fff;
}
.drawer-title{font-size:13px;color:var(--text-3);letter-spacing:.08em;}
.drawer-search{display:flex;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:4px 4px 4px 14px;}
.drawer-search input{flex:1;border:none;outline:none;background:transparent;font-size:14px;height:38px;min-width:0;}
.drawer-links{display:flex;flex-direction:column;gap:6px;}
.drawer-links a{
  padding:12px 14px;border-radius:10px;border:1px solid var(--line);
  font-size:15px;color:var(--text);background:#fff;
}
.drawer-links a:hover{background:var(--warm);}
.drawer-links a.is-active{color:var(--ink);font-weight:600;border-color:var(--orange-soft);background:var(--warm);}

/* ============ 面包屑 ============ */
.breadcrumb{padding:22px 0 0;font-size:13px;color:var(--text-3);}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb a{color:var(--text-2);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--orange);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:var(--mist);}
.breadcrumb .cur{color:var(--ink);font-weight:600;}

/* ============ Hero ============ */
.hero{
  padding:40px 0 64px;
  background:
    radial-gradient(900px 420px at 82% -10%, rgba(216,178,106,.16), transparent 70%),
    radial-gradient(700px 360px at 0% 0%, rgba(169,196,187,.16), transparent 72%);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.08em;color:var(--orange);
  background:var(--orange-soft);border-radius:999px;padding:5px 14px;margin-bottom:20px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange);}
.hero h1{
  font-size:clamp(32px,4.2vw,50px);
  line-height:1.18;letter-spacing:.02em;margin-bottom:18px;
}
.hero h1 .h1-line{display:block;}
.hero h1 .h1-sub{
  display:block;margin-top:10px;
  font-size:clamp(19px,2.1vw,25px);font-weight:600;color:var(--ink-soft);line-height:1.4;
}
.hero-sub{font-size:17px;color:var(--text-2);max-width:44ch;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px;}
.kw-tags{display:flex;flex-wrap:wrap;gap:8px;}
.kw-tags span{
  font-size:12.5px;color:var(--ink-soft);background:var(--panel);
  border:1px solid var(--line);border-radius:999px;padding:5px 13px;
}
.hero-media{
  position:relative;border-radius:var(--r-media);overflow:hidden;
  box-shadow:var(--shadow);background:var(--ink-deep);
}
.hero-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,43,39,.18) 0%,rgba(12,43,39,.62) 100%);
}
.hero-grid-lines{
  position:absolute;inset:0;z-index:2;pointer-events:none;opacity:.12;
  background-image:
    linear-gradient(to right, #FFFFFF 1px, transparent 1px),
    linear-gradient(to bottom, #FFFFFF 1px, transparent 1px);
  background-size:33.333% 33.333%;
}
.hero-badge{
  position:absolute;left:20px;bottom:20px;z-index:3;
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,253,248,.94);color:var(--ink);
  font-size:13px;font-weight:600;padding:8px 14px;border-radius:999px;
}
.hero-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--orange);}

/* ============ 通用板块 ============ */
.section{padding:56px 0;}
.section-warm{background:var(--warm);}
.section-head{margin-bottom:32px;max-width:720px;}
.section-kicker{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.1em;
  color:var(--ink-soft);margin-bottom:10px;
}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;margin-bottom:12px;}
.section-head p{font-size:16px;color:var(--text-2);}

/* ============ 步骤条 ============ */
.steps{
  display:grid;grid-template-columns:repeat(3,1fr);
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow);
}
.step{padding:28px 26px;border-right:1px solid var(--line);position:relative;}
.step:last-child{border-right:none;}
.step:nth-child(2){background:var(--warm);}
.step-num{
  font-family:var(--serif);font-size:30px;font-weight:700;color:var(--gold);
  line-height:1;margin-bottom:14px;display:block;letter-spacing:.02em;
}
.step h3{font-size:19px;margin-bottom:8px;line-height:1.45;}
.step p{font-size:14.8px;color:var(--text-2);line-height:1.8;}

/* ============ 图文卡片 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--mist);}
.card-media{overflow:hidden;background:var(--warm);}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-body h3{font-size:19px;line-height:1.45;}
.card-body p{font-size:14.8px;color:var(--text-2);line-height:1.78;}
.tag{
  align-self:flex-start;font-size:12px;font-weight:600;color:var(--orange);
  background:var(--orange-soft);border-radius:999px;padding:3px 11px;letter-spacing:.03em;
}
.card-link{
  margin-top:auto;padding-top:8px;font-size:14px;font-weight:600;color:var(--ink);
  display:inline-flex;align-items:center;gap:6px;
  transition:color .18s ease,gap .18s ease;
}
.card-link::after{content:"→";transition:transform .18s ease;}
.card-link:hover{color:var(--orange);text-decoration:underline;text-underline-offset:3px;}
.card-link:hover::after{transform:translateX(3px);}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:320px 1fr;gap:48px;align-items:start;}
.faq-left{position:sticky;top:140px;}
.faq-left h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;margin-bottom:12px;}
.faq-left p{font-size:15px;color:var(--text-2);margin-bottom:18px;}
.faq-left .faq-note{
  font-size:13px;color:var(--ink-soft);background:var(--panel);
  border:1px solid var(--line);border-radius:10px;padding:12px 14px;line-height:1.75;
}
.acc-item{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;transition:background-color .18s ease,border-color .18s ease;
}
.acc-item.is-open{background:var(--warm);border-color:var(--mist);}
.acc-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:16px;font-weight:600;
  font-family:var(--sans);color:var(--ink);line-height:1.6;
}
.acc-sign{
  flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;font-size:16px;color:var(--ink-soft);background:#fff;
  transition:transform .18s ease,color .18s ease,border-color .18s ease;
}
.acc-item.is-open .acc-sign{color:var(--orange);border-color:var(--orange-soft);transform:rotate(180deg);}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.acc-panel-inner{padding:0 20px 20px;font-size:15.2px;color:var(--text-2);line-height:1.82;}
.acc-panel-inner p + p{margin-top:10px;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink);color:#fff;border-radius:20px;
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  box-shadow:0 18px 44px rgba(12,43,39,.22);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border:1px solid rgba(216,178,106,.28);border-radius:50%;pointer-events:none;
}
.cta-band::before{
  content:"";position:absolute;right:40px;bottom:-80px;width:200px;height:200px;
  border:1px solid rgba(216,178,106,.18);border-radius:50%;pointer-events:none;
}
.cta-text{position:relative;z-index:2;max-width:640px;}
.cta-text h2{color:#fff;font-size:clamp(23px,2.5vw,30px);line-height:1.35;margin-bottom:12px;}
.cta-text p{font-size:15.5px;color:#C6D5CE;line-height:1.8;}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px;flex:none;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:#D7E0DA;padding:60px 0 0;margin-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:44px;}
.footer-brand .logo-mark{background:var(--orange);}
.footer-brand .logo-name{color:#fff;}
.footer-brand p{font-size:14px;color:var(--mist);line-height:1.85;margin-top:16px;max-width:34ch;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:#C6D5CE;transition:color .18s ease;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-contact{font-size:13.5px;color:var(--mist);line-height:1.85;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA79E;
}

/* ============ 固定转化条 ============ */
.fixed-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:var(--panel);border-top:1px solid var(--line);
  box-shadow:0 -8px 24px rgba(18,63,58,.10);
}
.fixed-bar.is-hidden{display:none;}
.fixed-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px;}
.fixed-text{font-size:14px;color:var(--text-2);}
.fixed-text strong{color:var(--ink);font-weight:600;}
.fixed-right{display:flex;align-items:center;gap:10px;}
.fixed-close{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;font-size:16px;color:var(--text-3);background:#fff;
  transition:background-color .18s ease,color .18s ease;
}
.fixed-close:hover{background:var(--warm);color:var(--ink);}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-link{padding:9px 8px;font-size:14px;}
  .nav-cta{margin-left:6px;}
}
@media (max-width:1024px){
  .search{max-width:420px;}
  .nav-link{font-size:13.5px;padding:8px 7px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .faq-left{position:static;}
  .steps{grid-template-columns:1fr;}
  .step{border-right:none;border-bottom:1px solid var(--line);}
  .step:last-child{border-bottom:none;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px;gap:24px;}
}
@media (max-width:900px){
  .search{display:none;}
  .nav-actions{display:none;}
  .icon-btn{display:inline-flex;}
  .header-top-inner{height:64px;justify-content:space-between;gap:12px;}
  .header-bottom{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero{padding:28px 0 44px;}
  .hero-media{order:2;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{padding-bottom:80px;}
  .section{padding:44px 0;}
  .fixed-bar-inner{height:58px;}
  .fixed-text{font-size:13px;}
  .fixed-text span{display:none;}
  .cta-band{padding:32px 24px;border-radius:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .hero h1 .h1-sub{font-size:18px;}
  .hero-sub{font-size:15.5px;}
  .breadcrumb{padding-top:16px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  body{font-size:15.5px;}
  .hero h1{font-size:32px;}
  .hero-actions .btn{width:100%;}
  .card-grid{grid-template-columns:1fr;}
  .step{padding:22px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .fixed-bar-inner{gap:10px;}
  .fixed-right .btn{height:42px;padding:0 16px;font-size:14px;}
  .acc-btn{font-size:15px;padding:16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --ink:#123F3A;
  --ink-deep:#0C2B27;
  --ink-soft:#2E6A60;
  --mist:#A9C4BB;
  --orange:#C65324;
  --orange-dark:#A8431B;
  --orange-soft:#F3D9CC;
  --gold:#D8B26A;
  --bg:#F7F2E8;
  --panel:#FFFDF8;
  --panel-warm:#EFE7D9;
  --text:#1B2421;
  --text-2:#5D6A64;
  --text-3:#8A958F;
  --line:#DED6C8;
  --focus:rgba(198,83,36,.35);
  --success:#2F7D5B;
  --radius-card:14px;
  --radius-media:16px;
  --radius-btn:10px;
  --shadow:0 10px 30px rgba(18,63,58,.08);
  --shadow-hover:0 16px 40px rgba(18,63,58,.12);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --header-h:120px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  padding-bottom:84px;
}
h1,h2,h3,h4{
  font-family:var(--font-serif);
  color:var(--ink);
  margin:0;
  letter-spacing:.02em;
}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease,background-color .18s ease;}
a:hover{color:var(--orange);}
img{max-width:100%;display:block;border:0;}
button{font:inherit;cursor:pointer;}
input,textarea{font:inherit;color:inherit;}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- buttons & chips ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--orange);color:#fff;}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--panel-warm);color:var(--ink);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-light{background:transparent;border-color:#fff;color:#fff;}
.btn-light:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn:disabled{opacity:.5;cursor:not-allowed;}

.chip{
  display:inline-flex;align-items:center;
  padding:5px 14px;border-radius:999px;
  background:var(--panel-warm);border:1px solid var(--line);
  color:var(--ink-soft);font-size:13px;line-height:1.6;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{background:var(--orange-soft);border-color:var(--orange-soft);color:var(--orange-dark);}
.chip.is-current{background:var(--ink);border-color:var(--ink);color:#fff;}

.tag{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:999px;
  background:var(--orange-soft);color:var(--orange-dark);
  font-size:12px;line-height:1.7;font-weight:600;
}
.tag-soft{background:rgba(169,196,187,.34);color:var(--ink-soft);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.header-top-inner{display:flex;align-items:center;gap:22px;min-height:72px;}

.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--ink);color:#FFFDF8;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:20px;font-weight:700;
  letter-spacing:0;
}
.logo-name{
  font-family:var(--font-serif);font-size:19px;font-weight:700;
  color:var(--ink);letter-spacing:.03em;white-space:nowrap;
}
.logo:hover .logo-name{color:var(--orange);}

.search{position:relative;flex:1 1 auto;max-width:560px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);
  border-radius:999px;height:46px;padding:0 6px 0 16px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px var(--focus);}
.search-icon{flex:0 0 auto;color:var(--ink-soft);display:inline-flex;}
.search-input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;
  height:100%;font-size:15px;color:var(--text);outline:none;
}
.search-input::placeholder{color:var(--text-3);}
.search-submit{
  flex:0 0 auto;height:34px;padding:0 18px;border:0;border-radius:999px;
  background:var(--orange);color:#fff;font-size:14px;font-weight:600;
  transition:background-color .18s ease;
}
.search-submit:hover{background:var(--orange-dark);}
.search-tip{
  display:none;margin-top:8px;font-size:13px;color:var(--ink-soft);
  background:var(--panel-warm);border:1px solid var(--line);
  border-radius:10px;padding:8px 12px;
}
.search-tip.is-show{display:block;}
.search-tip.is-error{color:#B23A3A;background:rgba(178,58,58,.08);border-color:rgba(178,58,58,.28);}

.menu-toggle{
  display:none;flex:0 0 auto;
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;
}
.menu-toggle:hover{background:var(--panel-warm);}

.header-nav{border-top:1px solid var(--line);background:var(--bg);}
.header-nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:46px;}
.nav-actions{display:flex;align-items:center;gap:26px;flex-wrap:wrap;}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);
  padding:10px 0;border-bottom:2px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link.is-active{color:var(--ink);font-weight:600;border-bottom-color:var(--orange);}
.nav-cta{margin-left:2px;}
.hot-keys{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.hot-keys span{font-size:12px;color:var(--text-3);}
.hot-keys a{
  font-size:12px;color:var(--text-2);
  padding:3px 10px;border-radius:999px;border:1px solid var(--line);
  background:rgba(255,253,248,.7);
  transition:all .18s ease;
}
.hot-keys a:hover{color:var(--orange-dark);border-color:var(--orange-soft);background:var(--orange-soft);}

/* ---------- hero ---------- */
.page-hero{
  padding:44px 0 40px;
  background:linear-gradient(180deg,#F7F2E8 0%,#EFE7D9 100%);
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap;}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--orange);}
.crumb .sep{color:var(--mist);}

.hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:40px;align-items:center;}
.hero-title{font-size:clamp(34px,4vw,50px);line-height:1.18;font-weight:700;}
.hero-title-line{display:block;}
.hero-title-sub{color:var(--ink-soft);font-size:clamp(22px,2.4vw,30px);margin-top:8px;}
.hero-lead{margin-top:16px;font-size:16px;color:var(--text-2);line-height:1.8;max-width:560px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}

.hero-visual{
  position:relative;border-radius:18px;overflow:hidden;
  aspect-ratio:4/3;box-shadow:var(--shadow);
  border:1px solid var(--line);
  background:#0C2B27;
}
.hero-visual img{width:100%;height:100%;object-fit:cover;object-position:center;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,43,39,.34) 0%,rgba(12,43,39,.62) 100%);
}
.hero-visual-cap{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  color:#FFFDF8;font-size:13px;line-height:1.7;
}
.hero-visual-cap strong{display:block;font-family:var(--font-serif);font-size:16px;margin-bottom:4px;letter-spacing:.02em;}
.grid-lines{
  position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:linear-gradient(to right,rgba(216,178,106,.16) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(216,178,106,.16) 1px,transparent 1px);
  background-size:33.33% 33.33%;
  opacity:.55;
}

/* ---------- filter row ---------- */
.filter-row{
  padding:26px 0 6px;
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
}
.filter-row .filter-label{font-size:13px;color:var(--text-3);margin-right:2px;}

/* ---------- main layout ---------- */
.page-main{padding:22px 0 72px;}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 306px;gap:34px;align-items:start;}

.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin:14px 0 20px;}
.section-head h2{font-size:clamp(24px,2.6vw,31px);line-height:1.3;}
.section-head .sub{font-size:13px;color:var(--text-3);padding-bottom:4px;}
.section-lead{font-size:15px;color:var(--text-2);margin:10px 0 22px;max-width:720px;}

.feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.feature-card{
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease;
  display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.feature-media{position:relative;overflow:hidden;background:var(--panel-warm);}
.feature-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;}
.feature-card .feature-media .tag{position:absolute;left:14px;top:14px;z-index:2;}
.feature-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.feature-body h3{font-size:20px;line-height:1.4;}
.feature-body p{font-size:14.5px;color:var(--text-2);line-height:1.82;}
.feature-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:6px;}
.feature-link{font-size:14px;font-weight:600;color:var(--orange);}
.feature-link:hover{color:var(--orange-dark);text-decoration:underline;text-underline-offset:3px;}
.feature-meta .meta-note{font-size:12px;color:var(--text-3);}

.feature-card.wide{grid-column:1 / -1;flex-direction:row;align-items:stretch;}
.feature-card.wide .feature-media{flex:0 0 46%;}
.feature-card.wide .feature-media img{aspect-ratio:16/11;height:100%;}
.feature-card.wide .feature-body{flex:1 1 auto;justify-content:center;padding:26px 28px;}
.feature-card.wide.reverse{flex-direction:row-reverse;}

/* ---------- sidebar ---------- */
.side{position:sticky;top:calc(var(--header-h) + 14px);display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:20px 20px 22px;box-shadow:var(--shadow);
}
.side-card h3{font-size:17px;margin-bottom:6px;}
.side-card .side-note{font-size:13px;color:var(--text-3);line-height:1.7;margin-bottom:14px;}
.side-links{display:flex;flex-direction:column;gap:4px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:10px;font-size:14.5px;color:var(--text);
  border:1px solid transparent;transition:all .18s ease;
}
.side-links a small{font-size:12px;color:var(--text-3);}
.side-links a:hover{background:var(--panel-warm);border-color:var(--line);color:var(--orange-dark);}
.side-links a.is-here{background:var(--ink);color:#fff;border-color:var(--ink);}
.side-links a.is-here small{color:rgba(255,255,255,.7);}
.side-links a.is-here:hover{background:var(--ink-deep);color:#fff;}
.side-divider{height:1px;background:var(--line);margin:16px 0;}
.side-tip{font-size:13px;color:var(--text-2);line-height:1.8;}

/* ---------- steps band ---------- */
.steps-band{
  margin-top:56px;padding:44px 0 48px;
  background:var(--panel);border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--shadow);
}
.steps-inner{padding:0 32px;}
.steps-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:24px;}
.step{
  position:relative;padding:22px 22px 20px;
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--bg);
}
.step .num{
  font-family:var(--font-serif);font-size:28px;font-weight:700;
  color:var(--gold);line-height:1;margin-bottom:12px;display:block;
}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--text-2);line-height:1.8;}

/* ---------- faq ---------- */
.faq-section{margin-top:64px;}
.faq-list{display:flex;flex-direction:column;gap:12px;margin-top:22px;}
.faq-item{
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  transition:background-color .18s ease,border-color .18s ease;
}
.faq-item.is-open{background:var(--panel-warm);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--orange-dark);}
.faq-sign{
  flex:0 0 auto;width:22px;height:22px;position:relative;color:var(--orange);
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-sign::before{width:14px;height:2px;}
.faq-sign::after{width:2px;height:14px;transition:opacity .18s ease,transform .18s ease;}
.faq-item.is-open .faq-sign::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg);}
.faq-a{
  display:none;padding:0 22px 20px;font-size:15px;color:var(--text-2);line-height:1.82;
}
.faq-item.is-open .faq-a{display:block;}
.faq-a p+p{margin-top:10px;}

/* ---------- cta ---------- */
.cta-band{
  margin-top:64px;background:var(--ink-deep);color:#F4EFE4;
  border-radius:20px;padding:46px 40px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border:1px solid rgba(216,178,106,.22);border-radius:50%;pointer-events:none;
}
.cta-band h2{color:#FFFDF8;font-size:clamp(24px,2.7vw,32px);line-height:1.32;}
.cta-band p{color:rgba(244,239,228,.78);font-size:15px;margin-top:12px;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px;position:relative;z-index:2;}
.cta-note{margin-top:16px;font-size:12.5px;color:rgba(244,239,228,.55);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-deep);color:#EFE7D9;margin-top:72px;padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:34px;}
.footer-brand .logo{margin-bottom:14px;}
.footer-brand .logo-mark{background:rgba(255,253,248,.1);color:#FFFDF8;}
.footer-brand .logo-name{color:#FFFDF8;}
.footer-brand p{font-size:13.5px;line-height:1.85;color:rgba(239,231,217,.66);max-width:290px;}
.footer-col h4{
  color:#FFFDF8;font-size:15px;margin-bottom:14px;font-family:var(--font-sans);font-weight:600;letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:9px;}
.footer-col a{font-size:13.5px;color:rgba(239,231,217,.72);}
.footer-col a:hover{color:#FFFDF8;text-decoration:underline;text-underline-offset:3px;}
.footer-contact{font-size:13.5px;line-height:1.9;color:rgba(239,231,217,.66);}
.footer-bottom{
  margin-top:34px;padding-top:18px;border-top:1px solid rgba(239,231,217,.16);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(239,231,217,.55);
}

/* ---------- sticky bar ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:#F7F2E8;border-top:1px solid var(--line);
  box-shadow:0 -8px 24px rgba(18,63,58,.1);
  height:64px;display:flex;align-items:center;
  transition:transform .22s ease,opacity .22s ease;
}
.sticky-bar.is-hidden{transform:translateY(120%);opacity:0;pointer-events:none;}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.sticky-text{font-size:14px;color:var(--text-2);}
.sticky-text strong{color:var(--ink);}
.sticky-actions{display:flex;align-items:center;gap:10px;}
.sticky-close{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;
}
.sticky-close:hover{background:var(--panel-warm);color:var(--ink);}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .layout{grid-template-columns:minmax(0,1fr) 270px;gap:26px;}
  .hero-grid{grid-template-columns:1fr .9fr;gap:28px;}
  .hot-keys{display:none;}
  .header-nav-inner{justify-content:flex-start;}
}
@media (max-width:900px){
  :root{--header-h:112px;}
  .layout{grid-template-columns:minmax(0,1fr);}
  .side{position:static;order:2;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{aspect-ratio:16/9;order:-1;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .steps-grid{grid-template-columns:1fr;}
  .steps-inner{padding:0 22px;}
}
@media (max-width:768px){
  :root{--header-h:64px;}
  body{padding-bottom:76px;}
  .header-top-inner{min-height:64px;gap:12px;}
  .search{display:none;}
  .search.is-open{
    display:block;position:absolute;left:0;right:0;top:64px;z-index:65;
    max-width:none;margin:0;padding:12px 24px 16px;
    background:var(--bg);border-bottom:1px solid var(--line);
  }
  .menu-toggle{display:inline-flex;margin-left:auto;}
  .header-nav{max-height:0;overflow:hidden;transition:max-height .24s ease;}
  body.nav-open .header-nav{max-height:420px;}
  .header-nav-inner{flex-direction:column;align-items:stretch;gap:0;padding-top:6px;padding-bottom:14px;}
  .nav-actions{flex-direction:column;align-items:stretch;gap:0;}
  .nav-link{padding:13px 0;border-bottom:1px solid var(--line);font-size:16px;}
  .nav-link.is-active{border-bottom-color:var(--line);color:var(--orange-dark);}
  .nav-cta{margin:14px 0 0;justify-content:center;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-card.wide,.feature-card.wide.reverse{flex-direction:column;}
  .feature-card.wide .feature-media{flex:0 0 auto;}
  .page-hero{padding:32px 0 30px;}
  .cta-band{padding:34px 24px;border-radius:16px;}
  .sticky-bar{height:56px;}
  .sticky-text{font-size:13px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .logo-name{font-size:16px;}
  .logo-mark{width:34px;height:34px;font-size:18px;border-radius:10px;}
  .hero-title{font-size:32px;}
  .hero-title-sub{font-size:20px;}
  .hero-lead{font-size:15px;}
  .hero-tags{gap:8px;}
  .chip{font-size:12px;padding:5px 12px;}
  .btn{height:44px;padding:0 18px;font-size:15px;}
  .feature-body{padding:18px;}
  .feature-body h3{font-size:18px;}
  .footer-grid{grid-template-columns:1fr;}
  .sticky-inner{gap:10px;}
  .sticky-text{max-width:52%;line-height:1.5;}
  .sticky-close{display:none;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a{padding:0 18px 18px;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category3 */
:root{
  --ink:#123F3A;
  --ink-deep:#0C2B27;
  --ink-light:#2E6A60;
  --mist:#A9C4BB;
  --orange:#C65324;
  --orange-dark:#A8431B;
  --orange-soft:#F3D9CC;
  --gold:#D8B26A;
  --bg:#F7F2E8;
  --panel:#FFFDF8;
  --warm:#EFE7D9;
  --text:#1B2421;
  --text-soft:#5D6A64;
  --text-mute:#8A958F;
  --line:#DED6C8;
  --focus:rgba(198,83,36,.35);
  --ok:#2F7D5B;
  --warn:#A96B1F;
  --err:#B23A3A;
  --r-card:14px;
  --r-media:18px;
  --r-btn:10px;
  --shadow-sm:0 10px 30px rgba(18,63,58,.08);
  --shadow-md:0 16px 40px rgba(18,63,58,.12);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  padding-bottom:96px;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--orange);}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:3px solid var(--focus);
  outline-offset:2px;
  border-radius:6px;
}
button{font-family:inherit;cursor:pointer;}
input{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);margin:0;letter-spacing:.02em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--panel);
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 14px rgba(18,63,58,.05);
}
.header-top{
  display:flex;align-items:center;gap:24px;
  min-height:72px;padding:12px 0;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--ink);color:#FFF8EC;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:20px;font-weight:700;
  box-shadow:inset 0 0 0 2px rgba(216,178,106,.35);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-name{
  font-family:var(--serif);font-size:19px;font-weight:700;color:var(--ink);
  letter-spacing:.04em;white-space:nowrap;
}
.logo-sub{font-size:11.5px;color:var(--text-mute);letter-spacing:.14em;}

.search-form{
  position:relative;flex:1 1 auto;max-width:520px;
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:5px 6px 5px 16px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-form:focus-within{border-color:var(--ink);box-shadow:0 0 0 4px var(--focus);}
.search-icon{width:18px;height:18px;flex:0 0 auto;color:var(--text-mute);}
.search-input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;
  font-size:14.5px;color:var(--text);height:34px;
}
.search-input::placeholder{color:var(--text-mute);}
.search-input:focus{outline:none;}
.search-btn{
  flex:0 0 auto;height:36px;padding:0 18px;border:0;border-radius:999px;
  background:var(--ink);color:#FFF8EC;font-size:14px;font-weight:600;
  transition:background .18s ease,transform .18s ease;
}
.search-btn:hover{background:var(--ink-light);}
.search-btn:active{transform:translateY(1px);}
.search-suggest{
  position:absolute;left:0;right:0;top:calc(100% + 10px);
  background:var(--panel);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-md);padding:14px 16px;display:none;
}
.search-suggest.is-open{display:block;}
.suggest-title{font-size:12px;letter-spacing:.14em;color:var(--text-mute);margin-bottom:8px;}
.suggest-tags{display:flex;flex-wrap:wrap;gap:8px;}
.suggest-tags a{
  font-size:13px;padding:5px 12px;border-radius:999px;
  background:var(--warm);color:var(--text-soft);border:1px solid transparent;
}
.suggest-tags a:hover{background:var(--orange-soft);color:var(--orange-dark);border-color:var(--orange-soft);}

.nav-actions{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;font-size:15px;color:var(--text);padding:8px 12px;
  border-radius:8px;white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--ink);background:var(--warm);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;
  height:2px;background:var(--orange);border-radius:2px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(198,83,36,.22);}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--warm);color:var(--ink-deep);}
.btn-light{background:#FFF8EC;color:var(--ink-deep);}
.btn-light:hover{background:#fff;color:var(--ink-deep);}

.subnav{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(239,231,217,.55),rgba(239,231,217,0));
}
.subnav-inner{
  display:flex;align-items:center;gap:10px;
  min-height:40px;padding:6px 0;flex-wrap:wrap;
}
.subnav-label{font-size:12px;letter-spacing:.14em;color:var(--text-mute);}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px;}
.hot-tags a{
  font-size:12.5px;color:var(--text-soft);
  padding:3px 11px;border-radius:999px;border:1px solid var(--line);
  background:var(--panel);transition:all .18s ease;
}
.hot-tags a:hover{border-color:var(--orange-soft);background:var(--orange-soft);color:var(--orange-dark);}

.mobile-tools{display:none;margin-left:auto;gap:8px;align-items:center;}
.icon-btn{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:var(--panel);display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink);
}
.icon-btn:hover{background:var(--warm);}
.icon-btn svg{width:20px;height:20px;}

/* ---------- Hero ---------- */
.hero{position:relative;padding:64px 0 72px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(to right,rgba(18,63,58,.055) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(18,63,58,.055) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.7;
  pointer-events:none;
  mask-image:radial-gradient(circle at 78% 30%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 78% 30%,#000 0%,transparent 72%);
}
.hero-grid{
  position:relative;
  display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;letter-spacing:.16em;color:var(--ink-light);
  background:rgba(169,196,187,.24);border:1px solid rgba(46,106,96,.18);
  padding:6px 14px;border-radius:999px;margin-bottom:20px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange);}
.hero h1{
  font-size:clamp(34px,4.1vw,50px);
  line-height:1.18;font-weight:700;letter-spacing:.02em;
}
.hero h1 .accent{color:var(--orange);}
.hero-sub{
  margin-top:18px;font-size:17px;line-height:1.8;color:var(--text-soft);
  max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.tag-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px;}
.tag{
  font-size:12.5px;padding:5px 13px;border-radius:999px;
  background:var(--panel);border:1px solid var(--line);color:var(--text-soft);
}
.hero-visual{position:relative;}
.hero-visual .frame{
  position:relative;border-radius:var(--r-media);overflow:hidden;
  box-shadow:var(--shadow-md);background:var(--ink-deep);
}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-visual .frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(18,63,58,.42),rgba(12,43,39,.62));
}
.visual-cap{
  position:absolute;left:22px;right:22px;bottom:20px;z-index:2;
  color:#FFF8EC;
}
.visual-cap strong{
  display:block;font-family:var(--serif);font-size:19px;letter-spacing:.04em;
}
.visual-cap span{font-size:13px;opacity:.82;}
.hero-visual .grid-deco{
  position:absolute;right:-18px;top:-18px;width:96px;height:96px;z-index:0;
  background-image:
    linear-gradient(to right,rgba(216,178,106,.5) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(216,178,106,.5) 1px,transparent 1px);
  background-size:24px 24px;opacity:.55;border-radius:8px;
}

/* ---------- quick nav strip ---------- */
.quick-strip{padding:0 0 8px;}
.quick-inner{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.quick-item{
  padding:18px 20px;display:flex;flex-direction:column;gap:4px;
  border-right:1px solid var(--line);transition:background .18s ease;
}
.quick-item:last-child{border-right:0;}
.quick-item:hover{background:var(--warm);}
.quick-item .qk{font-size:12px;letter-spacing:.12em;color:var(--text-mute);}
.quick-item .qv{font-size:14.5px;font-weight:600;color:var(--ink);}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head .label{
  display:inline-block;font-size:12px;letter-spacing:.18em;color:var(--orange);
  margin-bottom:12px;
}
.section-head h2{font-size:clamp(26px,2.8vw,32px);line-height:1.3;}
.section-head p{margin-top:12px;color:var(--text-soft);font-size:16px;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start;}
.faq-col{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--shadow-sm);
}
.faq-col h3{
  font-size:19px;display:flex;align-items:center;gap:10px;margin-bottom:16px;
}
.faq-col h3 .num{
  font-family:var(--serif);font-size:13px;color:var(--orange);
  background:var(--orange-soft);border-radius:999px;padding:2px 10px;letter-spacing:.08em;
}
.faq-item{border-top:1px solid var(--line);}
.faq-item:first-of-type{border-top:0;}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:14px;
  padding:15px 4px;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--orange);}
.faq-item summary .sign{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line);color:var(--ink-light);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;line-height:1;margin-top:3px;transition:all .18s ease;
}
.faq-item[open] summary{color:var(--orange-dark);}
.faq-item[open] summary .sign{
  background:var(--orange);border-color:var(--orange);color:#fff;transform:rotate(180deg);
}
.faq-answer{
  padding:0 4px 16px;font-size:15.5px;line-height:1.85;color:var(--text-soft);
}
.faq-answer p + p{margin-top:10px;}
.faq-item[open]{background:linear-gradient(180deg,rgba(239,231,217,.42),rgba(239,231,217,0));}
.faq-item{padding:0 2px;border-radius:8px;transition:background .18s ease;}

/* ---------- related list ---------- */
.related{
  background:var(--warm);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.rel-card{
  display:grid;grid-template-columns:132px 1fr;gap:16px;align-items:center;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:14px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--mist);}
.rel-card img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:10px;
}
.rel-body .badge{
  display:inline-block;font-size:11.5px;letter-spacing:.1em;
  color:var(--orange-dark);background:var(--orange-soft);
  padding:2px 9px;border-radius:999px;margin-bottom:7px;
}
.rel-body h3{font-size:16.5px;line-height:1.5;}
.rel-body p{margin-top:6px;font-size:13.5px;color:var(--text-mute);line-height:1.65;}
.rel-more{display:inline-flex;align-items:center;gap:6px;margin-top:8px;font-size:13.5px;color:var(--ink-light);font-weight:600;}
.rel-card:hover .rel-more{color:var(--orange);}

/* ---------- helper note ---------- */
.note-band{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--shadow-sm);
}
.note-band .note-text h3{font-size:19px;margin-bottom:6px;}
.note-band .note-text p{font-size:14.5px;color:var(--text-soft);max-width:640px;}
.note-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 80px;}
.cta-card{
  position:relative;overflow:hidden;
  background:var(--ink);border-radius:20px;
  padding:52px 48px;color:#FFF8EC;
  display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:center;
}
.cta-card::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:220px;height:220px;
  background-image:
    linear-gradient(to right,rgba(216,178,106,.35) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(216,178,106,.35) 1px,transparent 1px);
  background-size:28px 28px;opacity:.5;border-radius:12px;
}
.cta-card h2{color:#FFF8EC;font-size:clamp(24px,2.6vw,30px);line-height:1.34;}
.cta-card p{margin-top:12px;font-size:15.5px;color:rgba(255,248,236,.78);max-width:520px;}
.cta-form{display:flex;flex-direction:column;gap:12px;position:relative;z-index:2;}
.cta-form label{font-size:12.5px;letter-spacing:.1em;color:rgba(255,248,236,.7);}
.cta-form input{
  height:48px;border-radius:10px;border:1px solid rgba(255,248,236,.28);
  background:rgba(255,248,236,.08);color:#FFF8EC;padding:0 14px;font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.cta-form input::placeholder{color:rgba(255,248,236,.45);}
.cta-form input:focus{
  outline:none;border-color:var(--gold);box-shadow:0 0 0 4px rgba(216,178,106,.24);
  background:rgba(255,248,236,.12);
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,248,236,.78);padding:56px 0 26px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;
  padding-bottom:36px;border-bottom:1px solid rgba(255,248,236,.12);
}
.site-footer .logo-name{color:#FFF8EC;}
.site-footer .logo-mark{background:rgba(255,248,236,.1);box-shadow:inset 0 0 0 1px rgba(216,178,106,.4);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,248,236,.62);max-width:320px;}
.footer-col h4{
  font-family:var(--sans);font-size:13px;letter-spacing:.16em;color:rgba(255,248,236,.55);
  font-weight:600;margin-bottom:14px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14.5px;color:rgba(255,248,236,.82);}
.footer-col a:hover{color:var(--gold);}
.footer-contact{font-size:14px;line-height:1.9;color:rgba(255,248,236,.62);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;font-size:13px;color:rgba(255,248,236,.5);
}

/* ---------- sticky bar ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:var(--panel);border-top:1px solid var(--line);
  box-shadow:0 -10px 30px rgba(18,63,58,.1);
}
.sticky-inner{
  display:flex;align-items:center;gap:16px;min-height:64px;padding:10px 0;
}
.sticky-text{font-size:14.5px;color:var(--text-soft);}
.sticky-text strong{color:var(--ink);}
.sticky-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.close-bar{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  background:transparent;color:var(--text-mute);display:inline-flex;
  align-items:center;justify-content:center;font-size:16px;
}
.close-bar:hover{background:var(--warm);color:var(--ink);}
.sticky-bar.is-hidden{display:none;}

/* ---------- mobile drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(12,43,39,.42);z-index:80;
  opacity:0;pointer-events:none;transition:opacity .2s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:90;
  background:var(--panel);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .24s ease;
  padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head span{font-family:var(--serif);font-size:16px;color:var(--ink);font-weight:700;}
.drawer nav{display:flex;flex-direction:column;gap:4px;}
.drawer nav a{
  padding:12px 12px;border-radius:10px;font-size:15px;color:var(--text);
  border:1px solid transparent;
}
.drawer nav a:hover,.drawer nav a.is-active{background:var(--warm);color:var(--ink);border-color:var(--line);}
.drawer .btn{margin-top:16px;width:100%;}
.mobile-search{display:none;padding:10px 0 14px;border-top:1px solid var(--line);}
.mobile-search.is-open{display:block;}
.mobile-search .search-form{max-width:none;}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-link{padding:8px 9px;font-size:14.5px;}
  .search-form{max-width:420px;}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{max-width:560px;}
  .nav-actions .nav-link{padding:8px 8px;font-size:14px;}
  .nav-cta{display:none;}
  .quick-inner{grid-template-columns:repeat(2,1fr);}
  .quick-item:nth-child(2){border-right:0;}
  .quick-item:nth-child(1),.quick-item:nth-child(2){border-bottom:1px solid var(--line);}
  .faq-wrap{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .cta-card{grid-template-columns:1fr;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:900px){
  .nav-actions{display:none;}
  .search-form{display:none;}
  .mobile-tools{display:flex;}
  .header-top{min-height:64px;gap:12px;}
  .logo-name{font-size:17px;}
  .subnav-inner{gap:8px;}
}
@media (max-width:768px){
  body{font-size:16px;padding-bottom:88px;}
  .hero{padding:44px 0 52px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:26px;}
  .faq-col{padding:18px 16px;}
  .note-band{flex-direction:column;align-items:flex-start;}
  .note-actions{width:100%;}
  .note-actions .btn{flex:1 1 auto;}
  .cta-band{padding-bottom:56px;}
  .cta-card{padding:32px 22px;border-radius:16px;}
  .sticky-inner{min-height:56px;gap:10px;}
  .sticky-text{font-size:13.5px;}
  .rel-card{grid-template-columns:110px 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .hero h1{font-size:clamp(28px,8vw,34px);line-height:1.24;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .quick-inner{grid-template-columns:1fr;}
  .quick-item{border-right:0;border-bottom:1px solid var(--line);}
  .quick-item:last-child{border-bottom:0;}
  .rel-card{grid-template-columns:1fr;}
  .rel-card img{aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr;}
  .sticky-text{display:none;}
  .sticky-actions{margin-left:auto;width:100%;justify-content:space-between;}
  .sticky-actions .btn{flex:1 1 auto;}
  .section-head h2{font-size:24px;}
  .faq-item summary{font-size:15px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}