/* roulang page: index */
:root{
  --ink:#0F4C46;
  --ink-deep:#0B3A36;
  --ink-light:#DCEDE9;
  --ink-soft:rgba(15,76,70,.06);
  --accent:#E56A45;
  --accent-deep:#C9522F;
  --bg:#F6F2EA;
  --card:#FFFDF8;
  --text:#1B2422;
  --text-2:#55605C;
  --text-3:#8A9391;
  --line:#E4DCCD;
  --divider:#EDE6D9;
  --success:#2F7D5B;
  --warn:#C98A20;
  --error:#C0432F;
  --r-lg:14px;
  --r-md:10px;
  --r-sm:8px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(15,76,70,.05);
  --shadow-2:0 10px 28px rgba(15,76,70,.10);
  --shadow-3:0 24px 64px rgba(11,58,54,.22);
  --serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;font-family:var(--sans);font-size:16px;line-height:1.9;letter-spacing:.2px;
  color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
svg{display:block;}
[hidden]{display:none !important;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 18px;border-radius:0 0 var(--r-md) 0;z-index:200;}
.skip:focus{left:0;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-md);cursor:pointer;
  font-weight:500;font-size:15px;padding:0 22px;height:46px;line-height:1;
  transition:transform .16s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.btn-primary{background:var(--accent);color:#FFFDF8;box-shadow:0 2px 10px rgba(229,106,69,.22);}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(201,82,47,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px rgba(201,82,47,.24);}
.btn-secondary{background:transparent;color:var(--ink);border:1.5px solid var(--ink);}
.btn-secondary:hover{background:var(--ink);color:#FFFDF8;transform:translateY(-1px);}
.btn-secondary:active{transform:translateY(0);}
.btn-text{background:transparent;color:var(--ink);padding:0 10px;height:40px;}
.btn-text:hover{color:var(--accent-deep);}
.btn-sm{height:38px;font-size:14px;padding:0 16px;}
.btn-lg{height:52px;font-size:16px;padding:0 28px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-loading{opacity:.72;cursor:not-allowed;transform:none;}
.btn.is-loading::before{
  content:"";width:15px;height:15px;border-radius:50%;
  border:2px solid rgba(255,253,248,.45);border-top-color:#FFFDF8;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-size:14px;font-weight:500;
  position:relative;padding-bottom:2px;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--accent);
  transition:width .18s var(--ease);
}
.link-arrow:hover{color:var(--accent-deep);}
.link-arrow:hover::after{width:100%;}
.link-arrow span{transition:transform .18s var(--ease);}
.link-arrow:hover span{transform:translateX(4px);}

/* ---------- pills ---------- */
.pill{
  display:inline-flex;align-items:center;border-radius:var(--r-pill);
  font-size:12px;line-height:1;padding:7px 12px;font-weight:500;letter-spacing:.4px;
}
.pill-soft{background:var(--ink-light);color:var(--ink);}
.pill-line{background:var(--card);border:1px solid var(--line);color:var(--text-2);}
.pill-xs{font-size:11px;padding:6px 10px;}

/* ---------- notice bar ---------- */
.notice{background:var(--ink-light);border-bottom:1px solid rgba(15,76,70,.08);}
.notice-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:36px;font-size:13px;color:var(--ink);
}
.notice-inner a{color:var(--ink);font-weight:500;border-bottom:1px solid rgba(15,76,70,.28);}
.notice-inner a:hover{color:var(--accent-deep);border-bottom-color:var(--accent);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;background:rgba(246,242,234,.94);
  border-bottom:1px solid transparent;transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--line);background:rgba(255,253,248,.96);}
.header-inner{display:flex;align-items:center;gap:24px;min-height:68px;}
.brand{display:inline-flex;align-items:center;gap:9px;flex:0 0 auto;}
.brand svg{width:22px;height:22px;stroke:var(--ink);fill:none;stroke-width:1.5;}
.brand span{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.3px;}
.nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);padding:8px 12px;border-radius:var(--r-sm);
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:500;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.search{
  display:flex;align-items:center;gap:6px;height:38px;padding:0 14px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease);
}
.search:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px var(--ink-soft);background:#fff;}
.search svg{width:15px;height:15px;stroke:var(--text-3);fill:none;stroke-width:1.7;flex:0 0 auto;}
.search input{
  border:none;background:transparent;outline:none;width:118px;font-size:14px;color:var(--text);
}
.search input::placeholder{color:var(--text-3);}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--card);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle svg{width:19px;height:19px;stroke:var(--ink);fill:none;stroke-width:1.6;}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--card);padding:16px 0 22px;}
.mobile-drawer.is-open{display:block;}
.drawer-search{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-pill);height:42px;padding:0 16px;margin-bottom:14px;}
.drawer-search svg{width:16px;height:16px;stroke:var(--text-3);fill:none;stroke-width:1.7;}
.drawer-search input{border:none;background:transparent;outline:none;width:100%;font-size:14px;}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:16px;}
.drawer-nav a{padding:11px 4px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--divider);}
.drawer-nav a.is-active{color:var(--ink);font-weight:500;}
.drawer-actions{display:flex;flex-direction:column;gap:10px;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:64px 0 80px;}
.hero-wave{
  position:absolute;top:-40px;right:-60px;width:620px;height:620px;opacity:.08;pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink);
  background:var(--ink-light);border-radius:var(--r-pill);padding:7px 14px;margin-bottom:22px;font-weight:500;
}
.hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}
.hero h1{
  font-family:var(--serif);font-weight:700;font-size:clamp(30px,4.2vw,46px);line-height:1.25;
  letter-spacing:-.5px;color:var(--ink);margin-bottom:20px;
}
.hero-sub{font-size:17px;line-height:1.9;color:var(--text-2);max-width:520px;margin-bottom:30px;}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:32px;}
.hero-trust{display:flex;gap:28px;flex-wrap:wrap;}
.hero-trust li{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--text-3);}
.hero-trust svg{width:16px;height:16px;stroke:var(--ink);fill:none;stroke-width:1.6;flex:0 0 auto;}
.hero-media{position:relative;}
.hero-media-frame{
  aspect-ratio:16/10;border-radius:12px;overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-2);background:var(--ink-light);
}
.hero-media-frame img{width:100%;height:100%;object-fit:cover;}
.hero-float{
  position:absolute;right:-14px;bottom:-24px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--shadow-2);padding:14px 18px;min-width:172px;
}
.hero-float strong{display:block;font-family:var(--serif);font-size:28px;line-height:1.2;color:var(--ink);}
.hero-float span{font-size:12px;color:var(--text-3);}

/* ---------- section base ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--card);border-top:1px solid var(--divider);border-bottom:1px solid var(--divider);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head .pill{margin-bottom:12px;}
.section-title{font-family:var(--serif);font-size:clamp(24px,3vw,31px);line-height:1.35;letter-spacing:-.4px;color:var(--ink);font-weight:700;}
.section-desc{margin-top:10px;font-size:15px;color:var(--text-2);max-width:620px;}

/* ---------- pain points ---------- */
.pain-grid{display:grid;grid-template-columns:3.5fr 8.5fr;gap:48px;align-items:start;}
.pain-lead{border-left:3px solid var(--accent);padding-left:18px;}
.pain-lead h2{font-family:var(--serif);font-size:22px;line-height:1.5;color:var(--ink);font-weight:700;letter-spacing:-.3px;}
.pain-lead p{margin-top:10px;font-size:14px;color:var(--text-3);}
.pain-list{border-top:1px solid var(--divider);}
.pain-item{
  display:grid;grid-template-columns:56px 1fr;gap:18px;align-items:start;
  padding:22px 16px 22px 0;border-bottom:1px solid var(--divider);
  transition:background-color .18s var(--ease);border-radius:var(--r-md);
}
.pain-item:hover{background:var(--card);}
.pain-num{font-family:var(--serif);font-size:20px;color:var(--accent);line-height:1.6;}
.pain-q{font-size:16px;font-weight:500;color:var(--text);}
.pain-a{font-size:14px;color:var(--text-2);line-height:1.7;margin-top:4px;}

/* ---------- solutions ---------- */
.solution-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch;}
.solution-main{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.solution-main:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.solution-main-media{aspect-ratio:16/9;overflow:hidden;position:relative;}
.solution-main-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.solution-main:hover .solution-main-media img{transform:scale(1.03);}
.solution-main-tag{position:absolute;top:14px;left:14px;}
.solution-main-body{padding:22px 26px 26px;display:flex;flex-direction:column;gap:10px;flex:1;}
.solution-main-body h3{font-family:var(--serif);font-size:21px;color:var(--ink);font-weight:700;letter-spacing:-.3px;}
.solution-main-body p{font-size:15px;color:var(--text-2);line-height:1.85;}
.solution-main-body .link-arrow{margin-top:auto;padding-top:8px;}
.solution-side{display:flex;flex-direction:column;gap:24px;}
.solution-mini{
  flex:1;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 24px;display:flex;flex-direction:column;gap:8px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  box-shadow:var(--shadow-1);
}
.solution-mini:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(15,76,70,.24);}
.solution-mini-icon{
  width:38px;height:38px;border-radius:var(--r-md);background:var(--ink-light);
  display:flex;align-items:center;justify-content:center;margin-bottom:4px;
}
.solution-mini-icon svg{width:19px;height:19px;stroke:var(--ink);fill:none;stroke-width:1.7;}
.solution-mini h3{font-size:17px;font-weight:500;color:var(--text);transition:color .18s var(--ease);}
.solution-mini:hover h3{color:var(--ink);}
.solution-mini p{font-size:14px;color:var(--text-2);line-height:1.7;}
.solution-mini .mini-arrow{margin-top:auto;font-size:18px;color:var(--ink);transition:transform .18s var(--ease);}
.solution-mini:hover .mini-arrow{transform:translateX(4px);}

/* ---------- stats ---------- */
.stats{background:var(--ink);color:#F6F2EA;}
.stats-inner{display:grid;grid-template-columns:3fr 9fr;gap:48px;align-items:center;padding:72px 0;}
.stats-copy{font-size:16px;line-height:1.85;color:rgba(246,242,234,.82);}
.stats-list{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:0 26px;border-left:1px solid rgba(255,255,255,.14);}
.stat:first-child{border-left:none;padding-left:0;}
.stat-num{font-family:var(--serif);font-size:clamp(34px,3.6vw,50px);line-height:1.1;font-variant-numeric:tabular-nums;color:#F6F2EA;}
.stat-num small{font-size:16px;font-family:var(--sans);margin-left:2px;}
.stat-line{width:32px;height:3px;background:var(--accent);margin:14px 0 12px;border-radius:2px;}
.stat-label{font-size:13px;color:rgba(246,242,234,.70);line-height:1.7;}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch;}
.news-lead{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
  display:flex;
}
.news-lead-link{display:flex;flex-direction:column;width:100%;}
.news-lead:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.news-lead-media{aspect-ratio:16/9;overflow:hidden;}
.news-lead-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.news-lead:hover .news-lead-media img{transform:scale(1.03);}
.news-lead-body{padding:20px 26px 26px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-lead-body h3{
  font-family:var(--serif);font-size:20px;line-height:1.5;color:var(--ink);font-weight:700;letter-spacing:-.3px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-lead-body p{
  font-size:14px;color:var(--text-2);line-height:1.8;margin-top:2px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-side{display:flex;flex-direction:column;gap:16px;}
.news-item{
  flex:1;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:18px 22px;display:flex;flex-direction:column;gap:7px;
  box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.news-item h3{
  font-size:16px;font-weight:500;color:var(--text);line-height:1.6;transition:color .18s var(--ease);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-item:hover h3{color:var(--ink);}
.news-item p{
  font-size:13.5px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-top:auto;padding-top:8px;}
.news-meta time{font-variant-numeric:tabular-nums;}
.empty-state{
  background:var(--card);border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:52px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state svg{width:48px;height:48px;stroke:var(--text-3);fill:none;stroke-width:1.4;}
.empty-state p{font-size:14px;color:var(--text-2);}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;}
.step{position:relative;padding:0 26px 8px 0;}
.step-num{
  font-family:var(--serif);font-size:44px;line-height:1;color:rgba(15,76,70,.14);font-weight:700;
  margin-bottom:14px;letter-spacing:-1px;
}
.step h3{font-size:17px;font-weight:500;color:var(--ink);margin-bottom:8px;}
.step p{font-size:14px;color:var(--text-2);line-height:1.8;}
.step::after{
  content:"";position:absolute;top:22px;right:0;width:calc(100% - 70px);height:0;
  border-top:1px dashed var(--line);transform:translateX(40px);
}
.step:last-child::after{display:none;}

/* ---------- faq ---------- */
.faq-wrap{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1);}
.faq-item + .faq-item{border-top:1px solid var(--divider);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:none;cursor:pointer;text-align:left;
  padding:20px 24px;font-size:17px;font-weight:500;color:var(--text);line-height:1.6;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.faq-q:hover{background:var(--bg);color:var(--ink);}
.faq-q:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;}
.faq-icon{
  position:relative;width:18px;height:18px;flex:0 0 auto;transition:transform .2s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:1px;transition:background-color .2s var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease);}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.contact-copy h2{font-family:var(--serif);font-size:clamp(23px,2.8vw,30px);line-height:1.4;color:var(--ink);letter-spacing:-.4px;margin-bottom:18px;}
.check-list{display:flex;flex-direction:column;gap:12px;margin-bottom:22px;}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.7;}
.check-list svg{width:18px;height:18px;stroke:var(--ink);fill:none;stroke-width:1.8;flex:0 0 auto;margin-top:5px;}
.contact-note{font-size:13px;color:var(--text-3);line-height:1.8;}
.contact-note a{color:var(--ink);border-bottom:1px solid rgba(15,76,70,.28);}
.contact-note a:hover{color:var(--accent-deep);border-bottom-color:var(--accent);}
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 32px 32px;box-shadow:var(--shadow-1);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:7px;font-weight:500;}
.field input[type="text"],.field input[type="tel"],.field select,.field textarea{
  width:100%;height:44px;border:1px solid var(--line);border-radius:var(--r-md);
  background:#fff;padding:0 14px;font-size:15px;color:var(--text);outline:none;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea{height:auto;min-height:104px;padding:11px 14px;line-height:1.8;resize:vertical;}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2355605C' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--ink);box-shadow:0 0 0 3px var(--ink-soft);}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--error);box-shadow:0 0 0 3px rgba(192,67,47,.10);}
.err-text{display:none;font-size:12px;color:var(--error);margin-top:6px;}
.field.has-error .err-text{display:block;}
.radio-row{display:flex;gap:10px;flex-wrap:wrap;}
.radio-pill{position:relative;}
.radio-pill input{position:absolute;opacity:0;inset:0;cursor:pointer;}
.radio-pill span{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;font-size:14px;color:var(--text-2);cursor:pointer;
  transition:all .18s var(--ease);
}
.radio-pill input:checked + span{background:var(--ink);border-color:var(--ink);color:#FFFDF8;}
.radio-pill input:focus-visible + span{outline:2px solid var(--accent);outline-offset:2px;}
.check-line{display:flex;gap:9px;align-items:flex-start;margin:18px 0 12px;}
.check-line input{margin-top:5px;width:16px;height:16px;accent-color:var(--ink);flex:0 0 auto;}
.check-line label{font-size:13px;color:var(--text-2);line-height:1.7;}
.check-line a{color:var(--ink);border-bottom:1px solid rgba(15,76,70,.28);}
.privacy-tip{font-size:12px;color:var(--text-3);line-height:1.7;}
.form-success{
  display:none;background:var(--ink-light);border:1px solid rgba(15,76,70,.16);border-radius:var(--r-lg);
  padding:44px 28px;text-align:center;
}
.form-success svg{width:44px;height:44px;stroke:var(--ink);fill:none;stroke-width:1.7;margin:0 auto 16px;}
.form-success h3{font-family:var(--serif);font-size:21px;color:var(--ink);margin-bottom:8px;}
.form-success p{font-size:14px;color:var(--text-2);margin-bottom:18px;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-deep);color:#F6F2EA;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:9px;margin-bottom:14px;}
.footer-brand svg{width:22px;height:22px;stroke:#F6F2EA;fill:none;stroke-width:1.5;}
.footer-brand span{font-size:17px;font-weight:700;letter-spacing:-.3px;}
.footer-about{font-size:13.5px;line-height:1.9;color:rgba(246,242,234,.68);max-width:300px;}
.footer-contact{margin-top:18px;font-size:13.5px;color:rgba(246,242,234,.68);line-height:1.9;}
.footer-title{font-size:14px;font-weight:500;color:#F6F2EA;margin-bottom:16px;letter-spacing:.4px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:13.5px;color:rgba(246,242,234,.68);transition:color .18s var(--ease);width:fit-content;position:relative;}
.footer-links a::after{content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--accent);transition:width .18s var(--ease);}
.footer-links a:hover{color:var(--accent);}
.footer-links a:hover::after{width:100%;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(246,242,234,.55);
}
.footer-bottom .fb-right{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom a{color:rgba(246,242,234,.55);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:26px;bottom:28px;width:48px;height:48px;border-radius:50%;
  background:var(--ink);color:#FFFDF8;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s,background-color .18s var(--ease);
  z-index:80;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--ink-deep);transform:translateY(-2px);}
.to-top svg{width:20px;height:20px;stroke:#FFFDF8;fill:none;stroke-width:1.8;}

/* ---------- modal ---------- */
.modal-mask{
  position:fixed;inset:0;z-index:120;background:rgba(11,58,54,.45);
  display:none;align-items:center;justify-content:center;padding:24px;
}
.modal-mask.is-open{display:flex;}
.modal{
  position:relative;background:var(--card);border-radius:16px;box-shadow:var(--shadow-3);
  width:100%;max-width:520px;padding:30px 32px 32px;
  animation:modalIn .22s var(--ease);
}
@keyframes modalIn{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:translateY(0);}}
.modal-close{
  position:absolute;top:14px;right:14px;width:32px;height:32px;border-radius:50%;
  border:none;background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;
  font-size:20px;line-height:1;color:var(--text-2);transition:background-color .18s var(--ease),color .18s var(--ease);
}
.modal-close:hover{background:var(--ink-light);color:var(--ink);}
.modal h3{font-family:var(--serif);font-size:21px;color:var(--ink);margin-bottom:8px;padding-right:30px;}
.modal .modal-sub{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:20px;}
body.modal-open{overflow:hidden;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 22px;}
  .hero-grid{gap:40px;}
  .pain-grid{gap:32px;}
  .contact-grid{gap:32px;}
  .footer-grid{grid-template-columns:3.5fr 2.5fr 2.5fr 3fr;gap:32px;}
}
@media (max-width:991px){
  .nav{display:none;}
  .header-tools .search,.header-tools .btn-text{display:none;}
  .nav-toggle{display:inline-flex;}
  .section{padding:64px 0;}
  .hero{padding:48px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-sub{max-width:none;}
  .hero-float{right:12px;bottom:-20px;}
  .pain-grid{grid-template-columns:1fr;gap:26px;}
  .solution-grid{grid-template-columns:1fr;}
  .solution-side{flex-direction:row;}
  .solution-mini{flex:1;}
  .stats-inner{grid-template-columns:1fr;gap:32px;padding:56px 0;}
  .stats-list{grid-template-columns:repeat(2,1fr);row-gap:32px;}
  .stat:nth-child(3){border-left:none;padding-left:0;}
  .news-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:32px;}
  .step:nth-child(2)::after{display:none;}
  .contact-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-about{max-width:none;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .container{padding:0 18px;}
  .notice-inner{min-height:34px;font-size:12px;}
  .notice-inner span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:62%;}
  .header-inner{min-height:62px;gap:12px;}
  .brand span{font-size:15.5px;}
  .hero h1{font-size:clamp(26px,7vw,32px);}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-trust{gap:14px 20px;}
  .hero-float{position:static;margin-top:14px;right:auto;bottom:auto;display:inline-block;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .solution-side{flex-direction:column;}
  .stats-list{grid-template-columns:repeat(2,1fr);}
  .stat{padding:0 16px;}
  .stat:nth-child(odd){border-left:none;padding-left:0;}
  .steps{grid-template-columns:1fr;}
  .step{padding-right:0;}
  .step::after{display:none;}
  .form-card{padding:22px 20px 24px;}
  .contact-copy h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .to-top{right:16px;bottom:18px;width:44px;height:44px;}
  .modal-mask{padding:0;align-items:flex-end;}
  .modal{max-width:none;border-radius:16px 16px 0 0;padding:26px 20px 26px;animation:drawerIn .24s var(--ease);}
  @keyframes drawerIn{from{transform:translateY(100%);}to{transform:translateY(0);}}
  .pain-item{grid-template-columns:40px 1fr;gap:12px;padding:18px 8px 18px 0;}
  .faq-q{font-size:15.5px;padding:17px 18px;}
  .faq-a-inner{padding:0 18px 18px;font-size:14px;}
}
@media (max-width:520px){
  .hero-trust li{font-size:12.5px;}
  .stat-num{font-size:32px;}
  .news-lead-body{padding:16px 18px 20px;}
  .news-item{padding:15px 17px;}
  .form-card{padding:20px 16px 22px;}
  .brand span{font-size:14.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --ink:#0F4C46;
  --ink-deep:#0B3A36;
  --ink-soft:#DCEDE9;
  --ink-soft-2:#EEF6F4;
  --accent:#E56A45;
  --accent-deep:#C9522F;
  --bg:#F6F2EA;
  --card:#FFFDF8;
  --text:#1B2422;
  --muted:#55605C;
  --faint:#8A9391;
  --line:#E4DCCD;
  --split:#EDE6D9;
  --ok:#2F7D5B;
  --warn:#C98A20;
  --err:#C0432F;
  --r-lg:14px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,76,70,.05);
  --sh-2:0 10px 28px rgba(15,76,70,.10);
  --sh-3:0 24px 64px rgba(11,58,54,.22);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --w:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  letter-spacing:.2px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:var(--ink);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--accent-deep);}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:1.4em;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{max-width:var(--w);margin:0 auto;padding:0 24px;width:100%;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-sm);font-weight:500;line-height:1;white-space:nowrap;
  padding:12px 20px;font-size:15px;border:1.5px solid transparent;
  transition:transform .18s ease-out,background .18s ease-out,box-shadow .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--accent);color:#FFFDF8;box-shadow:0 6px 16px rgba(229,106,69,.22);}
.btn-primary:hover{background:var(--accent-deep);color:#FFFDF8;box-shadow:0 10px 22px rgba(201,82,47,.26);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink-soft);color:var(--ink);}
.btn-soft{background:var(--ink-soft);color:var(--ink);}
.btn-soft:hover{background:#CFE5E0;color:var(--ink);}
.btn-sm{padding:9px 16px;font-size:13.5px;border-radius:8px;}
.btn-lg{padding:14px 26px;font-size:16px;}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--ink);font-weight:500;position:relative;}
.link-arrow::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:var(--accent);transition:width .18s ease-out;}
.link-arrow:hover::after{width:100%;}
.link-arrow svg{transition:transform .18s ease-out;}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 标签 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-pill);
  font-size:12px;line-height:1.6;font-weight:500;letter-spacing:.3px;
  background:var(--ink-soft);color:var(--ink);
}
.pill-outline{background:var(--card);color:var(--muted);border:1px solid var(--line);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,253,248,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out;
}
.site-header.is-stuck{box-shadow:0 6px 20px rgba(15,76,70,.07);}
.header-inner{display:flex;align-items:center;gap:28px;height:70px;}
.brand{display:flex;align-items:center;gap:9px;flex-shrink:0;}
.brand-mark{width:24px;height:24px;stroke:var(--ink);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;}
.brand-text{
  font-family:var(--font-serif);font-weight:700;font-size:17.5px;letter-spacing:-.3px;
  color:var(--ink);white-space:nowrap;
}
.brand:hover .brand-text{color:var(--accent-deep);}
.nav{display:flex;align-items:center;gap:22px;flex-wrap:nowrap;}
.nav-link{
  position:relative;font-size:14.5px;color:var(--muted);padding:6px 0;font-weight:500;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;
  background:var(--accent);transition:width .18s ease-out;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{width:100%;}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:0 14px;height:38px;width:170px;transition:border-color .18s ease-out,background .18s ease-out;
}
.nav-search:focus-within{border-color:var(--ink);background:var(--ink-soft-2);}
.nav-search svg{width:15px;height:15px;stroke:var(--faint);fill:none;stroke-width:1.8;flex-shrink:0;}
.nav-search input{width:100%;border:0;background:transparent;outline:none;font-size:13.5px;color:var(--text);}
.nav-search input::placeholder{color:var(--faint);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;background:var(--card);
}
.nav-toggle span{display:block;width:16px;height:1.8px;background:var(--ink);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5.8px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.8px) rotate(-45deg);}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:var(--card);
  padding:16px 24px 22px;
}
.mobile-drawer.is-open{display:block;}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-sm);background:var(--bg);margin-bottom:14px;
}
.drawer-search svg{width:15px;height:15px;stroke:var(--faint);fill:none;stroke-width:1.8;}
.drawer-search input{width:100%;border:0;background:transparent;outline:none;font-size:14px;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:12px 4px;font-size:15px;color:var(--muted);border-bottom:1px solid var(--split);
}
.drawer-nav a:last-child{border-bottom:0;}
.drawer-nav a.is-active{color:var(--ink);font-weight:600;}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--bg);border-bottom:1px solid var(--split);}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:16px 0;font-size:13.5px;color:var(--faint);
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--accent-deep);}
.crumb .sep{color:#BFC7C3;}
.crumb .now{color:var(--faint);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 主体文章布局 ---------- */
.page-main{padding:44px 0 88px;}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 318px;gap:48px;align-items:start;}
.main-col{max-width:820px;min-width:0;}

.article-header{padding-bottom:22px;border-bottom:1px solid var(--line);}
.article-header h1{
  font-family:var(--font-serif);font-weight:700;
  font-size:clamp(26px,3.4vw,36px);line-height:1.32;letter-spacing:-.5px;
  margin-top:16px;color:var(--text);
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:16px;font-size:13px;color:var(--faint);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#C9CFCC;}

.cover-figure{margin-top:26px;}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--line);}
.cover-figure figcaption{margin-top:10px;font-size:12px;color:var(--faint);text-align:left;}

/* ---------- 正文排版 ---------- */
.article-body{
  margin-top:32px;font-size:17px;line-height:1.9;color:var(--text);
  word-break:break-word;
}
.article-body > * + *{margin-top:20px;}
.article-body > p:first-of-type{
  font-size:17.5px;color:#26302D;font-weight:500;
  padding-left:16px;border-left:3px solid var(--ink-soft);line-height:1.9;
}
.article-body h2{
  position:relative;font-family:var(--font-serif);font-weight:700;
  font-size:24px;line-height:1.45;letter-spacing:-.3px;
  margin-top:42px;padding-left:14px;color:var(--ink-deep);scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;width:4px;height:19px;
  background:var(--accent);border-radius:2px;
}
.article-body h3{
  font-size:19px;font-weight:600;line-height:1.6;margin-top:32px;color:var(--text);
  scroll-margin-top:96px;
}
.article-body h4{font-size:17px;font-weight:600;margin-top:24px;}
.article-body p{margin:0;}
.article-body ul,.article-body ol{padding-left:1.4em;}
.article-body li{margin:8px 0;}
.article-body li::marker{color:var(--accent);font-weight:600;}
.article-body blockquote{
  background:var(--ink-soft);border-left:3px solid var(--ink);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:20px 24px;font-size:16px;color:#31403C;
}
.article-body blockquote p{margin:0;}
.article-body img{border-radius:var(--r-sm);margin:24px auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:12px;color:var(--faint);text-align:center;margin-top:8px;}
.article-body table{
  width:100%;border-collapse:collapse;border:1px solid var(--line);
  font-size:15px;background:var(--card);overflow:hidden;border-radius:var(--r-sm);
}
.article-body th{background:var(--ink-soft);text-align:left;padding:12px 16px;font-weight:600;color:var(--ink-deep);border-bottom:1px solid var(--line);}
.article-body td{padding:12px 16px;border-top:1px solid var(--split);vertical-align:top;}
.article-body a{color:var(--ink);text-decoration:underline;text-decoration-color:rgba(15,76,70,.35);text-underline-offset:3px;}
.article-body a:hover{color:var(--accent-deep);text-decoration-color:var(--accent);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.article-body strong{color:var(--ink-deep);font-weight:600;}

/* ---------- 文末 ---------- */
.article-foot{margin-top:40px;padding-top:26px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.share-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:22px;flex-wrap:wrap;
}
.share-label{font-size:13px;color:var(--faint);}
.share-actions{display:flex;gap:10px;}
.icon-btn{
  width:38px;height:38px;border-radius:10px;background:var(--ink-soft);
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .18s ease-out,transform .18s ease-out;
}
.icon-btn svg{width:16px;height:16px;stroke:var(--ink);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.icon-btn:hover{background:#CFE5E0;transform:translateY(-1px);}
.icon-btn:active{transform:translateY(0);}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:56px 32px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state svg{width:52px;height:52px;stroke:var(--ink);fill:none;stroke-width:1.4;margin:0 auto 18px;opacity:.7;}
.empty-state h2{font-family:var(--font-serif);font-size:20px;margin-bottom:10px;}
.empty-state p{font-size:14.5px;color:var(--muted);margin-bottom:22px;}

/* ---------- 返回链接 ---------- */
.back-link{display:flex;justify-content:center;margin-top:44px;}

/* ---------- 侧栏 ---------- */
.side-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-1);
}
.side-title{
  font-size:14px;font-weight:600;color:var(--ink-deep);letter-spacing:.4px;
  display:flex;align-items:center;gap:8px;margin-bottom:14px;
}
.side-title::before{content:"";width:3px;height:14px;background:var(--accent);border-radius:2px;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;font-size:13.5px;line-height:1.65;color:var(--muted);
  padding:7px 0 7px 12px;border-left:2px solid transparent;
  transition:color .16s ease-out,border-color .16s ease-out,background .16s ease-out;
}
.toc-list a:hover{color:var(--ink);background:var(--ink-soft-2);}
.toc-list a.is-current{color:var(--ink);font-weight:600;border-left-color:var(--accent);}
.toc-empty{font-size:13px;color:var(--faint);}
.side-list{display:flex;flex-direction:column;}
.side-list a{
  font-size:13.8px;line-height:1.7;color:var(--muted);
  padding:11px 0;border-bottom:1px solid var(--split);
  display:flex;gap:9px;align-items:flex-start;
}
.side-list a:last-child{border-bottom:0;padding-bottom:0;}
.side-list a:hover{color:var(--ink);}
.side-list .idx{font-family:var(--font-serif);color:var(--accent);font-size:13px;line-height:1.7;flex-shrink:0;}
.cta-card{
  background:var(--ink-soft);border:1px solid #CFE5E0;border-radius:var(--r-lg);
  padding:22px 20px;
}
.cta-card h3{font-family:var(--font-serif);font-size:17px;line-height:1.5;color:var(--ink-deep);margin-bottom:8px;}
.cta-card p{font-size:13px;line-height:1.8;color:#3D514C;margin-bottom:16px;}
.cta-card .btn{width:100%;}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0 8px;border-top:1px solid var(--split);margin-top:72px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{
  font-family:var(--font-serif);font-size:28px;font-weight:700;letter-spacing:-.4px;color:var(--ink-deep);
}
.section-head p{font-size:14px;color:var(--muted);margin-top:8px;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D8CEBB;}
.rel-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;}
.rel-card .rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-card h3{font-family:var(--font-serif);font-size:17px;line-height:1.55;font-weight:700;color:var(--text);}
.rel-card:hover h3{color:var(--ink);}
.rel-card p{font-size:13.5px;line-height:1.75;color:var(--muted);}
.rel-meta{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:6px;font-size:12px;color:var(--faint);}

/* ---------- 底部 CTA ---------- */
.cta-band{background:var(--ink);color:#F6F2EA;margin-top:80px;padding:64px 0;}
.cta-band .cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{
  font-family:var(--font-serif);font-size:clamp(22px,2.6vw,30px);line-height:1.4;
  letter-spacing:-.4px;color:#FFFDF8;margin-bottom:10px;
}
.cta-band p{font-size:14.5px;color:rgba(246,242,234,.78);max-width:520px;}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-band .btn-ghost{color:#FFFDF8;border-color:rgba(246,242,234,.55);}
.cta-band .btn-ghost:hover{background:rgba(246,242,234,.12);color:#FFFDF8;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:#EDE6D9;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:9px;margin-bottom:14px;}
.footer-brand svg{width:24px;height:24px;stroke:#F6F2EA;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.footer-brand span{font-family:var(--font-serif);font-weight:700;font-size:17px;color:#FFFDF8;letter-spacing:-.3px;}
.footer-about{font-size:13.5px;line-height:1.85;color:rgba(237,230,217,.72);max-width:330px;}
.footer-contact{margin-top:16px;font-size:12.8px;line-height:1.9;color:rgba(237,230,217,.62);}
.footer-title{font-size:14px;font-weight:600;color:#FFFDF8;margin-bottom:16px;letter-spacing:.4px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:13.5px;color:rgba(237,230,217,.72);position:relative;display:inline-block;width:fit-content;}
.footer-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;
  background:var(--accent);transition:width .18s ease-out;
}
.footer-links a:hover{color:var(--accent);}
.footer-links a:hover::after{width:100%;}
.footer-bottom{
  border-top:1px solid rgba(237,230,217,.14);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(237,230,217,.55);
}
.footer-bottom a{color:rgba(237,230,217,.7);}
.footer-bottom a:hover{color:var(--accent);}
.fb-right{display:flex;gap:18px;flex-wrap:wrap;}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;
  background:var(--ink);display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s,background .18s ease-out;
  z-index:70;
}
.to-top svg{width:18px;height:18px;stroke:#F6F2EA;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--accent);}

/* ---------- Toast ---------- */
.toast{
  position:fixed;right:24px;bottom:88px;background:var(--ink-deep);color:#F6F2EA;
  font-size:13.5px;padding:11px 18px;border-radius:var(--r-sm);box-shadow:var(--sh-3);
  opacity:0;transform:translateY(8px);pointer-events:none;transition:opacity .2s ease-out,transform .2s ease-out;z-index:80;
}
.toast.is-show{opacity:1;transform:translateY(0);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .layout{grid-template-columns:minmax(0,1fr) 288px;gap:36px;}
  .nav{gap:16px;}
  .nav-search{width:140px;}
}
@media (max-width:991px){
  .nav{display:none;}
  .nav-toggle{display:flex;}
  .nav-search{display:none;}
  .header-inner{height:64px;gap:14px;}
  .layout{grid-template-columns:1fr;}
  .main-col{max-width:100%;}
  .side-col{position:static;order:2;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:52px 0;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .page-main{padding:28px 0 60px;}
  .article-header h1{font-size:clamp(23px,5.4vw,28px);}
  .article-body{font-size:16.5px;}
  .article-body h2{font-size:21px;margin-top:34px;}
  .article-body h3{font-size:17.5px;}
  .article-body > p:first-of-type{font-size:16.5px;padding-left:12px;}
  .related{padding:48px 0 4px;margin-top:48px;}
  .related-grid{grid-template-columns:1fr;}
  .section-head h2{font-size:23px;}
  .cta-band{padding:44px 0;margin-top:56px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn{flex:1;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding-top:48px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .crumb .now{max-width:200px;}
  .to-top{right:16px;bottom:16px;width:44px;height:44px;}
  .toast{right:16px;left:16px;bottom:76px;text-align:center;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
}
@media (max-width:520px){
  .brand-text{font-size:15.5px;}
  .header-tools .btn-ghost{display:none;}
  .related-grid{gap:18px;}
}

/* roulang page: category1 */
:root{
  --ink:#0F4C46;
  --ink-deep:#0B3A36;
  --ink-soft:#DCEDE9;
  --ink-soft-2:#EAF4F1;
  --accent:#E56A45;
  --accent-deep:#C9522F;
  --bg:#F6F2EA;
  --card:#FFFDF8;
  --text:#1B2422;
  --muted:#55605C;
  --faint:#8A9391;
  --line:#E4DCCD;
  --line-soft:#EDE6D9;
  --success:#2F7D5B;
  --success-bg:rgba(47,125,91,.10);
  --warn:#C98A20;
  --error:#C0432F;
  --error-bg:rgba(192,67,47,.10);
  --radius:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(15,76,70,.05);
  --shadow-2:0 10px 28px rgba(15,76,70,.10);
  --shadow-3:0 24px 64px rgba(11,58,54,.22);
  --sp-1:8px;--sp-2:16px;--sp-3:24px;--sp-4:32px;--sp-5:48px;--sp-6:72px;--sp-7:96px;
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.2px;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text);}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.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 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:500;line-height:1;
  padding:13px 22px;border-radius:var(--radius-sm);
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),background-color .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--accent);color:#FFFDF8;box-shadow:0 1px 2px rgba(229,106,69,.24);}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(201,82,47,.24);}
.btn-primary:active{transform:translateY(0);box-shadow:0 1px 2px rgba(201,82,47,.2);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);border-width:1.5px;}
.btn-ghost:hover{background:var(--ink-soft);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 16px;font-size:14px;}
.btn-lg{padding:15px 28px;font-size:16px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--ink);
  position:relative;padding-bottom:2px;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--accent);
  transition:width .18s var(--ease);
}
.link-arrow:hover{color:var(--accent-deep);}
.link-arrow:hover::after{width:100%;}
.link-arrow svg{width:15px;height:15px;transition:transform .18s var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1.6;padding:4px 12px;border-radius:var(--radius-pill);
  background:var(--ink-soft);color:var(--ink);font-weight:500;
}
.pill-outline{background:var(--card);border:1px solid var(--line);color:var(--muted);}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,253,248,.94);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 2px 10px rgba(15,76,70,.05);}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:68px;
}
.brand{display:inline-flex;align-items:center;gap:8px;flex-shrink:0;}
.brand svg{width:22px;height:22px;stroke:var(--ink);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{font-size:17px;font-weight:700;color:var(--ink-deep);letter-spacing:-.2px;white-space:nowrap;}
.nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-link{
  position:relative;font-size:15px;color:var(--muted);padding:6px 0;
  transition:color .18s var(--ease);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);
  transition:width .18s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink);font-weight:500;}
.nav-link.is-active::after{width:100%;}
.header-tools{display:flex;align-items:center;gap:14px;margin-left:auto;flex-shrink:0;}
.search{
  display:flex;align-items:center;gap:8px;
  width:170px;height:38px;padding:0 14px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-pill);
  transition:border-color .18s var(--ease),background-color .18s var(--ease);
}
.search svg{width:16px;height:16px;stroke:var(--faint);fill:none;stroke-width:1.6;stroke-linecap:round;flex-shrink:0;}
.search input{
  width:100%;border:0;background:transparent;outline:none;font-size:13px;color:var(--text);
}
.search input::placeholder{color:var(--faint);}
.search:focus-within{border-color:var(--ink);background:var(--card);}
.search:focus-within svg{stroke:var(--ink);}
.link-login{font-size:14px;color:var(--muted);padding:6px 2px;transition:color .18s var(--ease);}
.link-login:hover{color:var(--accent-deep);}
.nav-toggle{
  display:none;width:40px;height:40px;margin-left:auto;
  align-items:center;justify-content:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
  cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;stroke:var(--ink);fill:none;stroke-width:1.7;stroke-linecap:round;}
.drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--card);
  padding:16px 24px 24px;
}
.drawer.is-open{display:block;}
.drawer .search{width:100%;height:42px;margin-bottom:14px;}
.drawer nav{display:flex;flex-direction:column;}
.drawer .nav-link{
  padding:12px 0;font-size:15px;border-bottom:1px solid var(--line-soft);
}
.drawer .nav-link::after{display:none;}
.drawer .nav-link.is-active{color:var(--ink);font-weight:600;}
.drawer-actions{display:flex;gap:10px;margin-top:16px;}
.drawer-actions .btn{flex:1;}

/* ============ 面包屑 ============ */
.crumbs{padding:20px 0 0;font-size:13px;color:var(--faint);}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumbs li{display:flex;align-items:center;gap:8px;}
.crumbs li+li::before{content:"›";color:var(--line);}
.crumbs a{color:var(--muted);transition:color .18s var(--ease);}
.crumbs a:hover{color:var(--accent-deep);}
.crumbs span{color:var(--faint);}

/* ============ Hero ============ */
.hero{position:relative;padding:36px 0 64px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;right:-120px;top:-60px;width:560px;height:560px;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cg fill='none' stroke='%230F4C46' stroke-width='1'%3E%3Cpath d='M0 40c20-16 40-16 60 0s40 16 60 0'/%3E%3Cpath d='M0 60c20-16 40-16 60 0s40 16 60 0'/%3E%3Cpath d='M0 80c20-16 40-16 60 0s40 16 60 0'/%3E%3C/g%3E%3C/svg%3E") repeat;
  opacity:.08;pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
}
.hero-copy .pill{margin-bottom:18px;}
h1{
  font-family:var(--font-serif);font-weight:700;
  font-size:clamp(30px,4.2vw,44px);line-height:1.25;letter-spacing:-.5px;
  color:var(--ink-deep);
}
.hero-sub{
  margin-top:20px;font-size:16.5px;line-height:1.9;color:var(--muted);max-width:520px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:24px;margin-top:32px;
  padding-top:22px;border-top:1px solid var(--line);
}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--faint);}
.hero-trust svg{width:16px;height:16px;stroke:var(--ink);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  background:var(--ink-soft);
}
.data-card{
  position:absolute;right:-8px;bottom:-18px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
  box-shadow:var(--shadow-2);padding:14px 18px;max-width:220px;
}
.data-card strong{
  display:block;font-family:var(--font-serif);font-size:26px;line-height:1.2;color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.data-card span{display:block;font-size:12px;color:var(--faint);margin-top:4px;line-height:1.6;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-alt{background:var(--card);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{
  font-family:var(--font-serif);font-size:clamp(24px,2.6vw,31px);line-height:1.35;
  letter-spacing:-.4px;color:var(--ink-deep);font-weight:700;
}
.section-head p{margin-top:14px;font-size:15.5px;color:var(--muted);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--accent-deep);font-weight:500;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:block;}

/* ============ 要点网格 2×3 ============ */
.point-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.point{
  display:flex;gap:18px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.point:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D9D0BE;}
.point-num{
  font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--accent);
  line-height:1.4;flex-shrink:0;font-variant-numeric:tabular-nums;
}
.point h3{font-size:17px;font-weight:600;color:var(--ink-deep);margin-bottom:6px;}
.point p{font-size:14px;line-height:1.85;color:var(--muted);}

/* ============ 通栏说明带 ============ */
.note-band{
  background:var(--ink-soft);border-top:1px solid #CFE3DE;border-bottom:1px solid #CFE3DE;
  padding:52px 0;
}
.note-band-inner{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.note-band h2{
  font-family:var(--font-serif);font-size:clamp(22px,2.4vw,28px);line-height:1.4;
  color:var(--ink-deep);font-weight:700;letter-spacing:-.3px;
}
.note-band p{margin-top:12px;font-size:15px;color:#2C5C55;max-width:520px;}
.note-list{display:grid;gap:14px;}
.note-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--card);border:1px solid #CFE3DE;border-radius:var(--radius-sm);
  padding:14px 18px;font-size:14px;color:var(--muted);line-height:1.8;
}
.note-list svg{width:18px;height:18px;stroke:var(--ink);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;margin-top:4px;}

/* ============ 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.steps::before{
  content:"";position:absolute;left:0;right:0;top:34px;height:1px;
  border-top:1px dashed var(--line);z-index:0;
}
.step{position:relative;z-index:1;background:var(--bg);padding-right:8px;}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:56px;height:56px;border-radius:50%;
  background:var(--card);border:1px solid var(--line);
  font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--ink);
  margin-bottom:18px;box-shadow:var(--shadow-1);font-variant-numeric:tabular-nums;
}
.step h3{font-size:16.5px;font-weight:600;color:var(--ink-deep);margin-bottom:8px;}
.step p{font-size:14px;line-height:1.85;color:var(--muted);}

/* ============ 图文区块 ============ */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;
  border:1px solid var(--line);box-shadow:var(--shadow-1);background:var(--ink-soft);
}
.split h2{
  font-family:var(--font-serif);font-size:clamp(24px,2.6vw,30px);line-height:1.35;
  color:var(--ink-deep);letter-spacing:-.4px;font-weight:700;
}
.split p.lead{margin-top:14px;font-size:15.5px;color:var(--muted);}
.check-list{margin-top:24px;display:grid;gap:14px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--muted);line-height:1.85;}
.check-list svg{width:18px;height:18px;flex-shrink:0;margin-top:4px;stroke:var(--success);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ============ FAQ ============ */
.faq-list{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);max-width:880px;
}
.faq-item+.faq-item{border-top:1px solid var(--line-soft);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:20px 24px;background:transparent;border:0;cursor:pointer;
  text-align:left;font-size:16.5px;font-weight:500;color:var(--text);line-height:1.6;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.faq-q:hover{background:var(--ink-soft-2);color:var(--ink-deep);}
.faq-icon{
  flex-shrink:0;width:22px;height:22px;position:relative;
  transition:transform .2s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
  transition:background-color .2s var(--ease),opacity .2s var(--ease);
}
.faq-icon::before{left:50%;top:3px;width:2px;height:16px;transform:translateX(-50%);}
.faq-icon::after{top:50%;left:3px;height:2px;width:16px;transform:translateY(-50%);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease);}
.faq-a p{padding:0 52px 22px 24px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ============ CTA + 表单 ============ */
.cta-section{padding:88px 0;background:var(--bg);}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.cta-copy h2{
  font-family:var(--font-serif);font-size:clamp(24px,2.8vw,32px);line-height:1.35;
  color:var(--ink-deep);letter-spacing:-.4px;font-weight:700;
}
.cta-copy p{margin-top:14px;font-size:15.5px;color:var(--muted);}
.cta-points{margin-top:26px;display:grid;gap:14px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--muted);line-height:1.8;}
.cta-points svg{width:18px;height:18px;flex-shrink:0;margin-top:4px;stroke:var(--success);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;}
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;box-shadow:var(--shadow-2);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:7px;font-weight:500;}
.field input,.field select,.field textarea{
  width:100%;padding:0 14px;height:44px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-sm);
  outline:none;transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease);
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.8;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--ink);background:var(--card);box-shadow:0 0 0 2px var(--ink-soft);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:var(--error);background:var(--error-bg);
}
.err-msg{display:none;font-size:12px;color:var(--error);margin-top:6px;}
.field.has-error .err-msg{display:block;}
.chip-group{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:var(--radius-pill);
  background:var(--bg);border:1px solid var(--line);
  font-size:13.5px;color:var(--muted);cursor:pointer;
  transition:all .18s var(--ease);
}
.chip:hover{border-color:var(--ink);color:var(--ink);}
.chip input{position:absolute;opacity:0;width:0;height:0;}
.chip.is-checked{background:var(--ink);border-color:var(--ink);color:#FFFDF8;}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:12.5px;color:var(--faint);line-height:1.7;margin:6px 0 18px;}
.consent input{width:16px;height:16px;margin-top:2px;accent-color:var(--ink);flex-shrink:0;}
.consent a{color:var(--ink);text-decoration:underline;}
.form-note{font-size:12px;color:var(--faint);margin-top:12px;}
.form-card .btn-primary{width:100%;}
.form-success{
  display:none;
  background:var(--success-bg);border:1px solid rgba(47,125,91,.25);
  border-radius:var(--radius-sm);padding:28px 24px;text-align:center;
}
.form-success svg{width:40px;height:40px;margin:0 auto 14px;stroke:var(--success);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.form-success h3{font-family:var(--font-serif);font-size:19px;color:var(--success);margin-bottom:8px;}
.form-success p{font-size:14px;color:var(--muted);}
.form-success button{
  margin-top:18px;background:transparent;border:1px solid var(--success);color:var(--success);
  padding:9px 20px;border-radius:var(--radius-sm);font-size:14px;cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.form-success button:hover{background:var(--success);color:#FFFDF8;}
.spinner{
  display:none;width:15px;height:15px;border-radius:50%;
  border:2px solid rgba(255,253,248,.45);border-top-color:#FFFDF8;
  animation:spin .8s linear infinite;
}
.btn.is-loading .spinner{display:inline-block;}
@keyframes spin{to{transform:rotate(360deg);}}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:#E8F0EC;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:9px;margin-bottom:16px;}
.footer-brand svg{width:22px;height:22px;stroke:#E8F0EC;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.footer-brand span{font-size:16px;font-weight:700;color:#FFFDF8;letter-spacing:-.2px;}
.footer-about{font-size:13.5px;line-height:1.9;color:rgba(232,240,236,.72);max-width:320px;}
.footer-contact{margin-top:16px;font-size:13px;line-height:1.9;color:rgba(232,240,236,.62);}
.footer-title{font-size:14px;font-weight:600;color:#FFFDF8;margin-bottom:16px;letter-spacing:.2px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{
  font-size:13.5px;color:rgba(232,240,236,.72);
  transition:color .18s var(--ease);
  position:relative;width:fit-content;
}
.footer-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--accent);
  transition:width .18s var(--ease);
}
.footer-links a:hover{color:var(--accent);}
.footer-links a:hover::after{width:100%;}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:12.5px;color:rgba(232,240,236,.6);
}
.fb-right{display:flex;flex-wrap:wrap;gap:18px;align-items:center;}
.fb-right a{color:rgba(232,240,236,.6);transition:color .18s var(--ease);}
.fb-right a:hover{color:var(--accent);}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  background:var(--ink);color:#FFFDF8;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s,background-color .18s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--ink-deep);}
.to-top svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav{gap:18px;}
  .nav-link{font-size:14px;}
  .search{width:150px;}
}
@media (max-width:991px){
  .nav{display:none;}
  .header-tools{display:none;}
  .nav-toggle{display:flex;}
  .hero{padding:24px 0 52px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{order:2;}
  .data-card{right:12px;bottom:-14px;}
  .section,.cta-section{padding:64px 0;}
  .point-grid{grid-template-columns:1fr;}
  .note-band-inner{grid-template-columns:1fr;gap:24px;}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:32px;}
  .steps::before{display:none;}
  .split{grid-template-columns:1fr;gap:28px;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  h1{font-size:clamp(26px,7vw,32px);}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .hero-trust{gap:14px;flex-direction:column;}
  .data-card{position:static;margin-top:14px;max-width:none;}
  .section,.cta-section{padding:48px 0;}
  .steps{grid-template-columns:1fr;}
  .point{padding:20px;gap:14px;}
  .form-row{grid-template-columns:1fr;}
  .form-card{padding:22px;}
  .faq-q{padding:18px;font-size:15.5px;}
  .faq-a p{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{right:16px;bottom:16px;width:42px;height:42px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --ink:#0F4C46;
  --ink-deep:#0B3A36;
  --ink-light:#DCEDE9;
  --ink-soft:#EDF5F3;
  --accent:#E56A45;
  --accent-deep:#C9522F;
  --bg:#F6F2EA;
  --surface:#FFFDF8;
  --surface-alt:#FCFAF4;
  --text:#1B2422;
  --text-2:#55605C;
  --text-3:#8A9391;
  --line:#E4DCCD;
  --divider:#EDE6D9;
  --ok:#2F7D5B;
  --warn:#C98A20;
  --err:#C0432F;
  --ok-bg:rgba(47,125,91,.10);
  --warn-bg:rgba(201,138,32,.10);
  --err-bg:rgba(192,67,47,.10);
  --r-xs:8px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,76,70,.05);
  --sh-2:0 10px 28px rgba(15,76,70,.10);
  --sh-3:0 24px 64px rgba(11,58,54,.22);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.2px;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .18s ease-out}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{
  font-family:var(--serif);
  font-weight:700;
  letter-spacing:-.5px;
  margin:0;
  color:var(--ink);
  line-height:1.35;
}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:0;
  border-radius:var(--r-sm);
  font-family:var(--sans);
  font-weight:500;
  letter-spacing:.3px;
  cursor:pointer;
  text-align:center;
  white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.btn-primary{
  background:var(--accent);
  color:#FFFDF8;
  padding:12px 24px;
  box-shadow:0 2px 8px rgba(229,106,69,.22);
}
.btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(201,82,47,.26)}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 6px rgba(201,82,47,.24)}
.btn-outline{
  background:transparent;
  color:var(--ink);
  border:1.5px solid var(--ink);
  padding:10.5px 22px;
}
.btn-outline:hover{background:var(--ink-light);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0)}
.btn-text{
  background:transparent;
  color:var(--ink);
  padding:10px 12px;
}
.btn-text:hover{color:var(--accent-deep);background:var(--ink-soft)}
.btn-sm{padding:8px 16px;font-size:14px;border-radius:var(--r-sm)}
.btn-lg{padding:14px 30px;font-size:16px}
.btn-block{width:100%}
.btn:disabled,.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.8}
.btn.is-loading::before{
  content:"";
  width:14px;height:14px;
  border-radius:50%;
  border:2px solid rgba(255,253,248,.4);
  border-top-color:#FFFDF8;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,253,248,.94);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--sans);
  font-size:18px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:0;
  flex-shrink:0;
}
.brand-mark{width:22px;height:22px;flex-shrink:0;stroke:var(--ink);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.brand:hover{color:var(--ink-deep)}
.brand:hover .brand-mark{stroke:var(--accent)}
.nav{
  display:flex;
  align-items:center;
  gap:26px;
  flex:1 1 auto;
  min-width:0;
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:23px 0;
  white-space:nowrap;
  transition:color .18s ease-out;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:13px;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s ease-out;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:500}
.nav-link.is-active::after{transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:10px;flex-shrink:0}
.search{
  display:flex;
  align-items:center;
  gap:8px;
  width:176px;
  height:38px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:var(--surface);
  transition:border-color .18s ease-out,background .18s ease-out,box-shadow .18s ease-out;
}
.search:focus-within{border-color:var(--ink);background:var(--ink-soft);box-shadow:0 0 0 3px rgba(15,76,70,.08)}
.search svg{width:15px;height:15px;stroke:var(--text-3);fill:none;stroke-width:1.8;flex-shrink:0}
.search input{
  width:100%;
  border:0;
  background:transparent;
  font-family:var(--sans);
  font-size:13.5px;
  color:var(--text);
  outline:none;
  padding:0;
  letter-spacing:.2px;
}
.search input::placeholder{color:var(--text-3)}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--surface);
  cursor:pointer;
  transition:background .18s ease-out,border-color .18s ease-out;
}
.nav-toggle:hover{background:var(--ink-soft);border-color:var(--ink)}
.nav-toggle svg{width:18px;height:18px;stroke:var(--ink);fill:none;stroke-width:1.8;stroke-linecap:round}
.drawer{
  display:none;
  position:absolute;
  left:0;right:0;top:100%;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-2);
  padding:18px 24px 24px;
  z-index:79;
}
.drawer.is-open{display:block}
.drawer .search{width:100%;height:42px;margin-bottom:14px}
.drawer-nav{display:flex;flex-direction:column;margin-bottom:16px}
.drawer-nav a{
  padding:13px 4px;
  font-size:15.5px;
  color:var(--text-2);
  border-bottom:1px solid var(--divider);
  transition:color .18s ease-out,padding-left .18s ease-out;
}
.drawer-nav a:hover{color:var(--ink);padding-left:8px}
.drawer-nav a.is-active{color:var(--ink);font-weight:600;border-bottom-color:var(--ink-light)}
.drawer-actions{display:flex;flex-direction:column;gap:10px}

/* ===== Page hero ===== */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--ink-light);
  border-bottom:1px solid var(--line);
  padding:52px 0 56px;
}
.hero-wave{
  position:absolute;
  top:-30px;right:-80px;
  width:min(820px,72%);
  height:auto;
  pointer-events:none;
  opacity:.55;
}
.hero-inner{
  position:relative;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
}
.hero-copy{max-width:760px}
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--text-3);
  margin-bottom:18px;
  flex-wrap:wrap;
}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--accent-deep);text-decoration:underline}
.crumbs .cur{color:var(--text-3)}
.page-hero h1{
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.28;
  color:var(--ink-deep);
  max-width:820px;
}
.hero-sub{
  margin-top:16px;
  font-size:16.5px;
  line-height:1.85;
  color:#2F4A46;
  max-width:680px;
}
.hero-side{display:flex;flex-direction:column;gap:10px;align-items:flex-start;padding-bottom:6px}
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  letter-spacing:.3px;
  background:var(--ink-soft);
  color:var(--ink);
  border:1px solid rgba(15,76,70,.14);
}
.pill-lg{padding:9px 18px;font-size:13.5px;background:var(--surface);border-color:var(--line);box-shadow:var(--sh-1)}
.pill-accent{background:rgba(229,106,69,.12);color:var(--accent-deep);border-color:rgba(229,106,69,.28)}

/* ===== Section base ===== */
.sec{padding:88px 0}
.sec-tight{padding:64px 0}
.sec-head{max-width:760px;margin-bottom:36px}
.sec-title{font-size:clamp(24px,2.5vw,31px);line-height:1.4}
.sec-desc{margin-top:12px;color:var(--text-2);font-size:15.5px;line-height:1.9}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:1.6px;
  color:var(--accent-deep);
  font-weight:600;
  margin-bottom:12px;
}

/* ===== Compare table ===== */
.cmp-wrap{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--surface);
  box-shadow:var(--sh-1);
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
table.cmp{
  width:100%;
  min-width:780px;
  border-collapse:collapse;
  font-size:14.5px;
  line-height:1.7;
}
table.cmp thead th{
  background:var(--ink-light);
  color:var(--ink);
  font-family:var(--sans);
  font-weight:600;
  font-size:14px;
  letter-spacing:.4px;
  text-align:left;
  padding:16px;
  border-bottom:1px solid rgba(15,76,70,.16);
  border-right:1px solid rgba(15,76,70,.10);
  white-space:nowrap;
}
table.cmp thead th:last-child{border-right:0}
table.cmp thead th:first-child{width:150px}
table.cmp tbody th{
  text-align:left;
  font-family:var(--sans);
  font-weight:500;
  font-size:14.5px;
  color:var(--ink);
  background:var(--surface-alt);
  padding:16px;
  border-bottom:1px solid var(--divider);
  border-right:1px solid var(--divider);
  white-space:nowrap;
}
table.cmp tbody td{
  padding:16px;
  color:var(--text-2);
  border-bottom:1px solid var(--divider);
  border-right:1px solid var(--divider);
  vertical-align:top;
}
table.cmp tbody td:last-child{border-right:0}
table.cmp tbody tr:last-child th,
table.cmp tbody tr:last-child td{border-bottom:0}
table.cmp tbody tr{transition:background .18s ease-out}
table.cmp tbody tr:hover th{background:var(--ink-soft)}
table.cmp tbody tr:hover td{background:var(--surface-alt)}
.tag{
  display:inline-block;
  padding:3px 10px;
  border-radius:var(--r-pill);
  font-size:12px;
  line-height:1.6;
  background:var(--ink-soft);
  color:var(--ink);
  border:1px solid rgba(15,76,70,.14);
}
.tag-accent{background:rgba(229,106,69,.12);color:var(--accent-deep);border-color:rgba(229,106,69,.26)}
.tag-strong{background:var(--ink);color:#FFFDF8;border-color:var(--ink)}
.cmp-note{
  margin-top:18px;
  font-size:13.5px;
  color:var(--text-3);
  display:flex;
  gap:10px;
  align-items:flex-start;
}
.cmp-note svg{width:16px;height:16px;stroke:var(--text-3);fill:none;stroke-width:1.8;flex-shrink:0;margin-top:5px}

/* ===== Note band ===== */
.note-band{background:var(--ink-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:30px 0}
.note-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.note-inner p{font-size:15.5px;color:#2F4A46;max-width:760px}
.link-arrow{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  padding-bottom:2px;
}
.link-arrow::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:1px;width:0;
  background:var(--accent);
  transition:width .18s ease-out;
}
.link-arrow:hover{color:var(--accent-deep)}
.link-arrow:hover::after{width:100%}
.link-arrow .arw{transition:transform .18s ease-out}
.link-arrow:hover .arw{transform:translateX(4px)}

/* ===== FAQ + side CTA ===== */
.faq-layout{
  display:grid;
  grid-template-columns:minmax(0,1.85fr) minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.faq-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--divider)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:500;
  color:var(--text);
  cursor:pointer;
  transition:color .18s ease-out,background .18s ease-out;
}
.faq-q:hover{color:var(--ink);background:var(--surface-alt)}
.faq-ico{
  flex-shrink:0;
  width:20px;height:20px;
  position:relative;
  transition:transform .2s ease-out;
}
.faq-ico::before,.faq-ico::after{
  content:"";
  position:absolute;
  background:var(--ink);
  border-radius:1px;
  transition:background .2s ease-out;
}
.faq-ico::before{left:0;top:9px;width:20px;height:2px}
.faq-ico::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-ico{transform:rotate(45deg)}
.faq-item.is-open .faq-ico::before,.faq-item.is-open .faq-ico::after{background:var(--accent)}
.faq-item.is-open .faq-q{color:var(--ink)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text-2)}
.side-cta{
  background:var(--ink-light);
  border:1px solid rgba(15,76,70,.14);
  border-radius:var(--r-md);
  padding:28px 24px;
  box-shadow:var(--sh-1);
}
.side-cta h3{font-size:19px;margin-bottom:10px;color:var(--ink-deep)}
.side-cta p{font-size:14.5px;color:#2F4A46;line-height:1.85;margin-bottom:18px}
.side-cta .btn{font-size:15px;padding:11px 20px}
.side-note{display:block;margin-top:14px;font-size:12.5px;color:#3C5A55;text-align:center}
.side-list{margin-top:18px;padding-top:16px;border-top:1px dashed rgba(15,76,70,.22);display:flex;flex-direction:column;gap:9px}
.side-list a{font-size:14px;color:var(--ink);display:flex;align-items:center;gap:8px}
.side-list a:hover{color:var(--accent-deep)}
.side-list .dot{width:5px;height:5px;border-radius:50%;background:var(--accent);flex-shrink:0}

/* ===== Contact ===== */
.contact-sec{background:var(--bg);border-top:1px solid var(--line)}
.contact-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:56px;align-items:start}
.tick-list{display:flex;flex-direction:column;gap:12px;margin-top:26px}
.tick-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.8}
.tick-list svg{width:18px;height:18px;flex-shrink:0;margin-top:5px;stroke:var(--ink);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.privacy-note{margin-top:22px;font-size:12.5px;color:var(--text-3);line-height:1.8}
.form-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:30px;
}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:7px;letter-spacing:.3px}
.field input,.field select,.field textarea{
  width:100%;
  font-family:var(--sans);
  font-size:15px;
  color:var(--text);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:0 14px;
  height:44px;
  line-height:44px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
  appearance:none;
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.75;resize:vertical}
.field select{
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2355605C' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  background-size:16px;
  padding-right:40px;
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--ink);
  box-shadow:0 0 0 3px rgba(15,76,70,.10);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:var(--err);
  background:rgba(192,67,47,.04);
}
.err-msg{
  display:none;
  margin-top:6px;
  font-size:12px;
  color:var(--err);
  line-height:1.6;
}
.err-msg.is-visible{display:block}
.check{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13px;
  color:var(--text-2);
  line-height:1.75;
  margin:4px 0 6px;
  cursor:pointer;
}
.check input{
  width:16px;height:16px;
  margin:4px 0 0;
  accent-color:var(--ink);
  flex-shrink:0;
  cursor:pointer;
}
.check a{text-decoration:underline;color:var(--ink)}
.form-card .btn-block{margin-top:14px}
.form-success{
  text-align:center;
  padding:34px 10px;
  background:var(--ok-bg);
  border:1px solid rgba(47,125,91,.22);
  border-radius:var(--r-md);
}
.ok-ico{
  width:46px;height:46px;
  margin:0 auto 14px;
  border-radius:50%;
  background:var(--ok);
  color:#FFFDF8;
  display:flex;align-items:center;justify-content:center;
  font-size:22px;
  line-height:1;
}
.form-success h3{font-size:20px;color:#215B42;margin-bottom:8px}
.form-success p{font-size:14px;color:#2F5B49;margin-bottom:20px;line-height:1.8}

/* ===== Footer ===== */
.site-footer{background:var(--ink-deep);color:#E9F1EE;padding:64px 0 0;margin-top:0}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:9px;font-family:var(--sans);font-size:17px;font-weight:700;color:#FFFDF8;margin-bottom:16px}
.footer-brand svg{width:22px;height:22px;stroke:#DCEDE9;fill:none;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.footer-about{font-size:13.5px;line-height:1.9;color:rgba(233,241,238,.72);max-width:320px}
.footer-contact{margin-top:16px;font-size:13px;line-height:1.9;color:rgba(233,241,238,.62)}
.footer-title{font-family:var(--sans);font-size:14px;font-weight:600;color:#FFFDF8;letter-spacing:.6px;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:13.5px;color:rgba(233,241,238,.72);transition:color .18s ease-out,padding-left .18s ease-out}
.footer-links a:hover{color:var(--accent);padding-left:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:rgba(233,241,238,.58);
}
.fb-right{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.footer-bottom a{color:rgba(233,241,238,.68)}
.footer-bottom a:hover{color:var(--accent);text-decoration:underline}

/* ===== To top ===== */
.to-top{
  position:fixed;
  right:22px;bottom:22px;
  width:46px;height:46px;
  border-radius:50%;
  border:0;
  background:var(--ink);
  color:#FFFDF8;
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  box-shadow:var(--sh-2);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .2s ease-out,transform .2s ease-out,background .18s ease-out,visibility .2s;
  z-index:70;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--ink-deep)}
.to-top svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ===== Responsive ===== */
@media (max-width:1199px){
  .nav{gap:20px}
  .search{width:150px}
  .header-inner{gap:20px}
}
@media (max-width:991px){
  .nav{display:none}
  .search{display:none}
  .header-tools .btn-text{display:none}
  .nav-toggle{display:inline-flex}
  .sec{padding:64px 0}
  .sec-tight{padding:52px 0}
  .page-hero{padding:42px 0 46px}
  .hero-inner{gap:26px}
  .hero-side{flex-direction:row;flex-wrap:wrap;gap:8px}
  .faq-layout{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{min-height:62px;gap:12px}
  .brand{font-size:16px}
  .brand-mark{width:20px;height:20px}
  .header-tools .btn-primary{padding:8px 14px;font-size:13.5px}
  .page-hero{padding:34px 0 38px}
  .page-hero h1{font-size:clamp(24px,6vw,30px)}
  .hero-sub{font-size:15px}
  .sec{padding:48px 0}
  .sec-tight{padding:42px 0}
  .form-card{padding:22px}
  .faq-q{padding:17px 18px;font-size:16px}
  .faq-a-inner{padding:0 18px 18px;font-size:14.5px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:34px}
  .footer-about{max-width:none}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .note-inner{flex-direction:column;align-items:flex-start;gap:14px}
  .to-top{right:16px;bottom:16px;width:42px;height:42px}
}
@media (max-width:519px){
  .brand{font-size:15px;gap:6px}
  .header-tools .btn-primary{padding:7px 12px;font-size:13px}
  .nav-toggle{width:38px;height:38px}
  .btn-lg{padding:12px 20px;font-size:15px}
  .field input,.field select{height:42px;line-height:42px}
}

/* roulang page: category3 */
:root{
    --ink:#0F4C46;
    --ink-deep:#0B3A36;
    --ink-soft:#DCEDE9;
    --accent:#E56A45;
    --accent-deep:#C9522F;
    --bg:#F6F2EA;
    --card:#FFFDF8;
    --text:#1B2422;
    --text-2:#55605C;
    --text-3:#8A9391;
    --line:#E4DCCD;
    --line-2:#EDE6D9;
    --ok:#2F7D5B;
    --warn:#C98A20;
    --err:#C0432F;
    --r-card:14px;
    --r-sm:10px;
    --r-pill:999px;
    --sh-1:0 1px 2px rgba(15,76,70,.05);
    --sh-2:0 10px 28px rgba(15,76,70,.10);
    --sh-3:0 24px 64px rgba(11,58,54,.22);
    --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
    --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    --sp-1:8px;
    --sp-2:16px;
    --sp-3:24px;
    --sp-4:32px;
    --sp-5:48px;
    --sp-6:72px;
    --sp-7:96px;
  }

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

  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

  body{
    margin:0;
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.9;
    letter-spacing:.2px;
    color:var(--text);
    background:var(--bg);
  }

  img{max-width:100%;display:block;border-style:none;}
  svg{display:block;}
  a{color:var(--ink);text-decoration:none;transition:color .18s ease-out;}
  button{font-family:inherit;font-size:inherit;color:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  input,textarea,select{font-family:inherit;font-size:inherit;}

  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  textarea:focus-visible,
  select:focus-visible{
    outline:2px solid var(--accent);
    outline-offset:2px;
  }

  .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;
    border:1px solid transparent;
    border-radius:var(--r-sm);
    font-weight:500;
    cursor:pointer;
    white-space:nowrap;
    transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
  }
  .btn-primary{background:var(--accent);color:#FFFDF8;}
  .btn-primary:hover{background:var(--accent-deep);transform:translateY(-1px);box-shadow:0 8px 20px rgba(229,106,69,.26);}
  .btn-primary:active{transform:translateY(0);box-shadow:none;}
  .btn-outline{background:transparent;border-color:var(--ink);color:var(--ink);border-width:1.5px;}
  .btn-outline:hover{background:var(--ink-soft);transform:translateY(-1px);}
  .btn-outline:active{transform:translateY(0);}
  .btn-ghost{background:transparent;color:var(--text-2);}
  .btn-ghost:hover{color:var(--ink);background:var(--ink-soft);}
  .btn-sm{padding:8px 14px;font-size:14px;}
  .btn-md{padding:11px 22px;font-size:15px;}
  .btn-lg{padding:14px 28px;font-size:16px;}
  .btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

  .text-link{
    display:inline-flex;align-items:center;gap:6px;
    font-size:15px;color:var(--ink);font-weight:500;position:relative;
  }
  .text-link::after{
    content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;
    background:currentColor;transform:scaleX(0);transform-origin:left;
    transition:transform .18s ease-out;
  }
  .text-link:hover::after{transform:scaleX(1);}
  .text-link svg{width:14px;height:14px;transition:transform .18s ease-out;}
  .text-link:hover svg{transform:translateX(4px);}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:90;
    background:rgba(255,253,248,.96);
    border-bottom:1px solid transparent;
    transition:border-color .2s ease-out,box-shadow .2s ease-out;
  }
  .site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 4px 18px rgba(15,76,70,.06);}

  .header-inner{
    display:flex;
    align-items:center;
    gap:20px;
    height:68px;
  }

  .brand{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-family:var(--font-serif);
    font-size:17px;
    font-weight:700;
    letter-spacing:-.2px;
    color:var(--ink);
    flex-shrink:0;
  }
  .brand svg{
    width:24px;height:24px;
    stroke:var(--ink);fill:none;stroke-width:1.5;
    stroke-linecap:round;stroke-linejoin:round;
  }

  .nav{
    display:flex;
    align-items:center;
    gap:2px;
    margin:0 auto;
  }
  .nav-link{
    position:relative;
    padding:8px 12px;
    font-size:15px;
    color:var(--text-2);
    border-radius:8px;
    transition:color .18s ease-out;
  }
  .nav-link::after{
    content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
    background:var(--accent);border-radius:2px;
    transform:scaleX(0);transform-origin:left;
    transition:transform .18s ease-out;
  }
  .nav-link:hover{color:var(--ink);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.is-active{color:var(--ink);font-weight:500;}
  .nav-link.is-active::after{transform:scaleX(1);}

  .header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}

  .search{position:relative;display:flex;align-items:center;}
  .search svg{
    position:absolute;left:12px;width:16px;height:16px;
    stroke:var(--text-3);fill:none;stroke-width:2;stroke-linecap:round;
    pointer-events:none;
  }
  .search input{
    width:176px;height:38px;
    padding:0 14px 0 34px;
    border-radius:var(--r-pill);
    border:1px solid var(--line);
    background:var(--card);
    font-size:14px;color:var(--text);
    transition:border-color .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out;
  }
  .search input::placeholder{color:var(--text-3);}
  .search input:focus{
    outline:none;
    border-color:var(--ink);
    background:var(--ink-soft);
    box-shadow:0 0 0 3px rgba(220,237,233,.8);
  }

  .nav-toggle{
    display:none;
    width:40px;height:40px;
    align-items:center;justify-content:center;
    border:1px solid var(--line);
    border-radius:var(--r-sm);
    background:var(--card);
    cursor:pointer;
  }
  .nav-toggle svg{width:20px;height:20px;stroke:var(--ink);fill:none;stroke-width:1.8;stroke-linecap:round;}

  .drawer{
    display:none;
    border-top:1px solid var(--line);
    background:var(--card);
    box-shadow:0 16px 32px rgba(15,76,70,.08);
  }
  .drawer.is-open{display:block;}
  .drawer-inner{padding:18px 24px 24px;display:flex;flex-direction:column;gap:16px;}
  .drawer .search{width:100%;}
  .drawer .search input{width:100%;height:44px;border-radius:var(--r-sm);}
  .drawer-nav{display:flex;flex-direction:column;}
  .drawer-nav a{
    padding:12px 4px;
    font-size:15px;
    color:var(--text-2);
    border-bottom:1px solid var(--line-2);
  }
  .drawer-nav a.is-active{color:var(--ink);font-weight:500;}
  .drawer-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px;}

  /* ---------- 页头 ---------- */
  .page-head{
    position:relative;
    padding:52px 0 56px;
    background:
      linear-gradient(120deg,rgba(246,242,234,.95) 0%,rgba(220,237,233,.92) 100%),
      url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    border-bottom:1px solid var(--line);
    overflow:hidden;
  }
  .page-head::after{
    content:"";
    position:absolute;right:-120px;top:-90px;
    width:460px;height:460px;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200' viewBox='0 0 200 200'%3E%3Cg fill='none' stroke='%230F4C46' stroke-width='1.2'%3E%3Cpath d='M0 60c25-18 50-18 75 0s50 18 75 0 50-18 75 0'/%3E%3Cpath d='M0 100c25-18 50-18 75 0s50 18 75 0 50-18 75 0'/%3E%3Cpath d='M0 140c25-18 50-18 75 0s50 18 75 0 50-18 75 0'/%3E%3C/g%3E%3C/svg%3E");
    background-size:200px 200px;
    opacity:.07;
    pointer-events:none;
  }
  .page-head .container{position:relative;z-index:1;}

  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:14px;color:var(--text-3);
    margin-bottom:20px;
  }
  .breadcrumb a{color:var(--text-2);}
  .breadcrumb a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px;}
  .breadcrumb .sep{color:var(--text-3);}

  .page-title{
    font-family:var(--font-serif);
    font-weight:700;
    font-size:clamp(28px,4vw,42px);
    line-height:1.32;
    letter-spacing:-.5px;
    color:var(--ink-deep);
    max-width:940px;
    margin-bottom:18px;
  }
  .page-lead{
    font-size:17px;
    line-height:1.95;
    color:var(--text-2);
    max-width:800px;
    margin-bottom:30px;
  }

  .filter-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}

  .chip{
    display:inline-flex;align-items:center;gap:6px;
    padding:8px 18px;
    border-radius:var(--r-pill);
    border:1px solid var(--line);
    background:var(--card);
    font-size:14px;
    color:var(--text-2);
    cursor:pointer;
    transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
  }
  .chip:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-1px);}
  .chip.is-active{background:var(--ink);border-color:var(--ink);color:#FFFDF8;font-weight:500;}
  .chip:active{transform:translateY(0);}

  /* ---------- 通用板块 ---------- */
  .section{padding:84px 0;}
  .section--soft{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

  .section-head{max-width:760px;margin-bottom:40px;}
  .eyebrow{
    display:inline-block;
    font-size:13px;
    letter-spacing:2px;
    color:var(--accent);
    font-weight:500;
    margin-bottom:12px;
  }
  .section-title{
    font-family:var(--font-serif);
    font-size:clamp(24px,2.6vw,30px);
    font-weight:700;
    line-height:1.4;
    letter-spacing:-.3px;
    color:var(--ink-deep);
    margin-bottom:14px;
  }
  .section-sub{
    font-size:16px;
    color:var(--text-2);
    line-height:1.9;
    max-width:720px;
  }

  /* ---------- 问题卡片墙 ---------- */
  .q-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:24px;
  }

  .q-card{
    display:flex;
    flex-direction:column;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    overflow:hidden;
    box-shadow:var(--sh-1);
    transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  }
  .q-card:hover{
    transform:translateY(-2px);
    box-shadow:var(--sh-2);
    border-color:#D9CFBC;
  }
  .q-card.is-hidden{display:none;}

  .q-thumb{
    position:relative;
    aspect-ratio:16/10;
    overflow:hidden;
    background:linear-gradient(135deg,var(--ink-soft),#F1EDE2);
  }
  .q-thumb img{
    width:100%;height:100%;
    object-fit:cover;
    transition:transform .35s ease-out;
  }
  .q-card:hover .q-thumb img{transform:scale(1.035);}

  .q-body{
    display:flex;
    flex-direction:column;
    gap:10px;
    padding:20px 20px 22px;
    flex:1;
  }

  .tag{
    display:inline-flex;align-items:center;
    padding:4px 10px;
    border-radius:var(--r-pill);
    background:var(--ink-soft);
    color:var(--ink);
    font-size:12px;
    line-height:1.6;
    align-self:flex-start;
  }

  .q-card h3{
    font-family:var(--font-serif);
    font-size:19px;
    font-weight:700;
    line-height:1.5;
    color:var(--text);
    letter-spacing:-.2px;
    transition:color .18s ease-out;
  }
  .q-card:hover h3{color:var(--ink);}

  .q-desc{
    font-size:14px;
    line-height:1.85;
    color:var(--text-2);
  }

  .q-more{
    margin-top:auto;
    padding-top:6px;
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:14px;
    font-weight:500;
    color:var(--ink);
  }
  .q-more svg{width:14px;height:14px;transition:transform .18s ease-out;}
  .q-card:hover .q-more svg{transform:translateX(4px);}

  /* ---------- 支持通道 ---------- */
  .channel-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:24px;
  }
  .channel-card{
    display:flex;
    flex-direction:column;
    gap:14px;
    padding:32px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--sh-1);
    transition:transform .2s ease-out,box-shadow .2s ease-out;
  }
  .channel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
  .channel-icon{
    width:44px;height:44px;
    display:flex;align-items:center;justify-content:center;
    border-radius:12px;
    background:var(--ink-soft);
  }
  .channel-icon svg{width:22px;height:22px;stroke:var(--ink);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
  .channel-card h3{
    font-family:var(--font-serif);
    font-size:21px;
    font-weight:700;
    color:var(--ink-deep);
    letter-spacing:-.2px;
  }
  .channel-card p{font-size:15px;color:var(--text-2);line-height:1.85;}
  .check-list{display:flex;flex-direction:column;gap:10px;margin-top:4px;}
  .check-list li{
    display:flex;gap:10px;align-items:flex-start;
    font-size:15px;color:var(--text-2);line-height:1.8;
  }
  .check-list svg{
    width:16px;height:16px;flex-shrink:0;margin-top:6px;
    stroke:var(--ok);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;
  }

  /* ---------- 处理顺序 ---------- */
  .steps{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:24px;
  }
  .step{
    position:relative;
    padding:26px 22px 24px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--sh-1);
    transition:transform .2s ease-out,box-shadow .2s ease-out;
  }
  .step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
  .step-num{
    font-family:var(--font-serif);
    font-size:34px;
    line-height:1;
    font-weight:700;
    color:var(--ink-soft);
    margin-bottom:14px;
    letter-spacing:-1px;
  }
  .step h3{
    font-size:17px;
    font-weight:600;
    color:var(--ink-deep);
    margin-bottom:8px;
    line-height:1.6;
  }
  .step p{font-size:14px;line-height:1.85;color:var(--text-2);}

  /* ---------- 数据带 ---------- */
  .data-band{
    background:var(--ink);
    color:#F6F2EA;
    padding:60px 0;
  }
  .data-band-inner{
    display:grid;
    grid-template-columns:3fr 9fr;
    gap:48px;
    align-items:center;
  }
  .data-lead{
    font-size:16px;
    line-height:1.85;
    color:rgba(246,242,234,.82);
    border-left:3px solid var(--accent);
    padding-left:16px;
  }
  .data-grid{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
  }
  .data-item{
    padding-left:24px;
    border-left:1px solid rgba(255,255,255,.14);
  }
  .data-item:first-child{padding-left:0;border-left:none;}
  .data-num{
    display:block;
    font-family:var(--font-serif);
    font-size:clamp(32px,4vw,46px);
    line-height:1.1;
    font-weight:700;
    letter-spacing:-1px;
    color:#FFFDF8;
    font-variant-numeric:tabular-nums;
  }
  .data-num span{font-size:16px;font-family:var(--font-sans);font-weight:400;margin-left:4px;letter-spacing:0;}
  .data-line{width:32px;height:3px;background:var(--accent);border-radius:2px;margin:14px 0 10px;}
  .data-label{font-size:13px;line-height:1.7;color:rgba(246,242,234,.72);}

  /* ---------- FAQ ---------- */
  .faq-wrap{
    max-width:900px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--sh-1);
    overflow:hidden;
  }
  .faq-item + .faq-item{border-top:1px solid var(--line-2);}
  .faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:20px 24px;
    background:transparent;
    border:0;
    text-align:left;
    font-size:17px;
    font-weight:500;
    color:var(--text);
    cursor:pointer;
    transition:background-color .18s ease-out,color .18s ease-out;
  }
  .faq-q:hover{background:#FBF7EE;color:var(--ink);}
  .faq-icon{
    position:relative;
    width:20px;height:20px;flex-shrink:0;
    transition:transform .2s ease-out;
  }
  .faq-icon::before,
  .faq-icon::after{
    content:"";position:absolute;left:50%;top:50%;
    background:var(--ink);border-radius:2px;
    transform:translate(-50%,-50%);
    transition:background-color .2s ease-out;
  }
  .faq-icon::before{width:14px;height:2px;}
  .faq-icon::after{width:2px;height:14px;transition:transform .2s ease-out,background-color .2s ease-out;}
  .faq-item.is-open .faq-icon{transform:rotate(45deg);}
  .faq-item.is-open .faq-icon::before,
  .faq-item.is-open .faq-icon::after{background:var(--accent);}

  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .25s ease-out;
  }
  .faq-item.is-open .faq-a{max-height:360px;}
  .faq-a-inner{
    padding:0 24px 22px;
    font-size:15px;
    line-height:1.9;
    color:var(--text-2);
  }

  /* ---------- 表单 / CTA ---------- */
  .cta-wrap{
    display:grid;
    grid-template-columns:5fr 7fr;
    gap:48px;
    align-items:start;
  }
  .cta-copy h2{
    font-family:var(--font-serif);
    font-size:clamp(24px,2.8vw,32px);
    font-weight:700;
    line-height:1.4;
    letter-spacing:-.3px;
    color:var(--ink-deep);
    margin-bottom:16px;
  }
  .cta-copy p{font-size:16px;color:var(--text-2);line-height:1.9;margin-bottom:22px;}

  .form-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--sh-1);
    padding:32px;
  }
  .form-row{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:16px;
  }
  .field{margin-bottom:16px;}
  .field label{
    display:block;
    font-size:13px;
    font-weight:500;
    color:var(--text-2);
    margin-bottom:6px;
  }
  .field input,
  .field select,
  .field textarea{
    width:100%;
    height:44px;
    padding:0 14px;
    border:1px solid var(--line);
    border-radius:var(--r-sm);
    background:var(--card);
    color:var(--text);
    font-size:15px;
    transition:border-color .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
  }
  .field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='none' stroke='%2355605C' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round' d='M1 1.5 6 6.5 11 1.5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;}
  .field textarea{
    height:auto;
    min-height:112px;
    padding:12px 14px;
    line-height:1.8;
    resize:vertical;
  }
  .field input::placeholder,
  .field textarea::placeholder{color:var(--text-3);}
  .field input:focus,
  .field select:focus,
  .field textarea:focus{
    outline:none;
    border-color:var(--ink);
    box-shadow:0 0 0 3px rgba(220,237,233,.9);
    background:#FFFEFB;
  }
  .field.has-error input,
  .field.has-error textarea,
  .field.has-error select{border-color:var(--err);}
  .err-text{
    display:none;
    font-size:12px;
    color:var(--err);
    margin-top:6px;
  }
  .field.has-error .err-text{display:block;}

  .checkbox-row{
    display:flex;
    align-items:flex-start;
    gap:10px;
    margin:4px 0 18px;
  }
  .checkbox-row input[type="checkbox"]{
    width:16px;height:16px;
    margin-top:5px;
    accent-color:var(--ink);
    flex-shrink:0;
    cursor:pointer;
  }
  .checkbox-row label{
    font-size:12px;
    line-height:1.8;
    color:var(--text-3);
    cursor:pointer;
  }
  .checkbox-row a{color:var(--ink);text-decoration:underline;text-underline-offset:3px;}

  .form-success{
    display:none;
    padding:32px;
    border-radius:var(--r-card);
    background:rgba(47,125,91,.08);
    border:1px solid rgba(47,125,91,.28);
    text-align:center;
  }
  .form-success.is-open{display:block;}
  .form-success svg{
    width:44px;height:44px;margin:0 auto 14px;
    stroke:var(--ok);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;
  }
  .form-success h3{
    font-family:var(--font-serif);
    font-size:20px;
    color:var(--ok);
    margin-bottom:8px;
  }
  .form-success p{font-size:14px;color:var(--text-2);line-height:1.85;margin-bottom:18px;}

  /* ---------- 返回链接 ---------- */
  .back-home{
    padding:0 0 72px;
    text-align:center;
  }

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--ink-deep);
    color:rgba(246,242,234,.86);
    padding:64px 0 0;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:2fr 1fr 1fr 1fr;
    gap:40px;
    padding-bottom:48px;
  }
  .footer-brand{
    display:flex;align-items:center;gap:8px;
    font-family:var(--font-serif);
    font-size:18px;font-weight:700;
    color:#FFFDF8;
    margin-bottom:16px;
    letter-spacing:-.2px;
  }
  .footer-brand svg{
    width:24px;height:24px;
    stroke:#FFFDF8;fill:none;stroke-width:1.5;
    stroke-linecap:round;stroke-linejoin:round;
  }
  .footer-about{
    font-size:14px;
    line-height:1.9;
    color:rgba(246,242,234,.7);
    max-width:320px;
    margin-bottom:18px;
  }
  .footer-contact{
    font-size:13px;
    line-height:1.9;
    color:rgba(246,242,234,.62);
  }
  .footer-title{
    font-size:15px;
    font-weight:600;
    color:#FFFDF8;
    margin-bottom:16px;
  }
  .footer-links{display:flex;flex-direction:column;gap:10px;}
  .footer-links a{
    font-size:14px;
    color:rgba(246,242,234,.7);
    transition:color .18s ease-out;
  }
  .footer-links a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
  .footer-bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    padding:22px 0 28px;
    border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;
    color:rgba(246,242,234,.55);
  }
  .fb-right{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
  .fb-right a{color:rgba(246,242,234,.55);}
  .fb-right a:hover{color:var(--accent);}

  /* ---------- 回到顶部 ---------- */
  .to-top{
    position:fixed;
    right:24px;bottom:24px;
    width:48px;height:48px;
    display:flex;align-items:center;justify-content:center;
    border-radius:50%;
    border:0;
    background:var(--ink);
    color:#F6F2EA;
    cursor:pointer;
    box-shadow:0 10px 24px rgba(11,58,54,.22);
    opacity:0;visibility:hidden;
    transform:translateY(8px);
    transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s,background-color .18s ease-out;
    z-index:80;
  }
  .to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
  .to-top:hover{background:var(--ink-deep);}
  .to-top svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

  /* ---------- 响应式 ---------- */
  @media (max-width:1199px){
    .nav-link{padding:8px 9px;font-size:14px;}
    .search input{width:140px;}
  }

  @media (max-width:991px){
    .nav{display:none;}
    .header-actions .search{display:none;}
    .header-actions .btn-ghost{display:none;}
    .nav-toggle{display:inline-flex;}
    .header-inner{height:62px;}
    .section{padding:64px 0;}
    .q-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
    .channel-grid{grid-template-columns:1fr;}
    .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
    .data-band-inner{grid-template-columns:1fr;gap:28px;}
    .data-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 0;}
    .data-item:nth-child(even){padding-left:20px;border-left:1px solid rgba(255,255,255,.14);}
    .data-item:nth-child(3){padding-left:0;border-left:none;}
    .cta-wrap{grid-template-columns:1fr;gap:32px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }

  @media (max-width:767px){
    .container{padding:0 18px;}
    .drawer-inner{padding:16px 18px 22px;}
    .page-head{padding:36px 0 40px;}
    .page-lead{font-size:16px;margin-bottom:24px;}
    .section{padding:48px 0;}
    .section-head{margin-bottom:28px;}
    .q-grid{grid-template-columns:1fr;}
    .steps{grid-template-columns:1fr;}
    .data-grid{grid-template-columns:1fr;gap:28px;}
    .data-item,
    .data-item:nth-child(even),
    .data-item:nth-child(3){
      padding-left:16px;
      border-left:1px solid rgba(255,255,255,.14);
    }
    .data-item:first-child{padding-left:16px;border-left:1px solid rgba(255,255,255,.14);}
    .form-card{padding:22px;}
    .form-row{grid-template-columns:1fr;gap:0;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
    .back-home{padding:0 0 56px;}
    .to-top{right:16px;bottom:16px;width:44px;height:44px;}
    .drawer-actions{grid-template-columns:1fr;}
  }

  @media (max-width:520px){
    .brand{font-size:15px;}
    .brand svg{width:22px;height:22px;}
    .page-title{font-size:26px;}
    .btn-lg{padding:12px 20px;font-size:15px;width:100%;}
    .faq-q{padding:16px 18px;font-size:16px;}
    .faq-a-inner{padding:0 18px 18px;}
    .channel-card{padding:24px;}
    .form-card{padding:18px;}
  }