/* roulang page: index */
/* ===== 设计变量层 ===== */
:root{
  --primary:#14657A;
  --primary-dark:#0B4F63;
  --primary-light:#E4F0F3;
  --accent:#E09A34;
  --accent-light:#FBF1E1;
  --bg:#F6F8F9;
  --surface:#FFFFFF;
  --line:#E3EAED;
  --deep:#0E2A31;
  --text:#1C2B31;
  --text-2:#5C7078;
  --text-3:#8A9AA1;
  --invert:#F2F7F8;
  --ok:#2E8B6B;
  --err:#C0392B;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,60,72,.05), 0 6px 18px rgba(18,60,72,.06);
  --sh-2:0 10px 30px rgba(18,60,72,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec:clamp(56px,7vw,104px);
}
/* ===== reset 层 ===== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--primary-dark)}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text)}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
/* ===== 容器与栅格 ===== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--sec) 0}
.section-tight{padding:clamp(36px,4.5vw,64px) 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:34px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;letter-spacing:-.01em;line-height:1.35}
.sec-head p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:62ch}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-light);padding:5px 13px;border-radius:var(--r-pill);margin-bottom:14px;letter-spacing:.02em}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary)}
.text-link::after{content:"›";font-size:18px;line-height:1;transition:transform .18s var(--ease)}
.text-link:hover{color:var(--primary-dark);text-decoration:underline}
.text-link:hover::after{transform:translateX(3px)}
/* ===== 悬浮胶囊导航 ===== */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0 0}
.nav-pill{
  max-width:1180px;margin:0 auto;display:flex;align-items:center;gap:14px;
  padding:10px 14px 10px 18px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.88);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:box-shadow .18s var(--ease),background .18s var(--ease);
}
.site-header.is-scrolled .nav-pill{box-shadow:var(--sh-2);background:rgba(255,255,255,.96)}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--text);flex:none}
.brand:hover{color:var(--text)}
.brand-mark{width:24px;height:24px;border-radius:8px;background:var(--primary);display:inline-flex;align-items:center;justify-content:center;flex:none}
.brand-mark svg{width:14px;height:14px;display:block}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-menu a{display:block;padding:9px 12px;font-size:15px;color:var(--text-2);border-radius:var(--r-pill);position:relative;white-space:nowrap;transition:color .18s var(--ease),background .18s var(--ease)}
.nav-menu a:hover{color:var(--primary);background:var(--primary-light)}
.nav-menu a.is-active{color:var(--primary);font-weight:600}
.nav-menu a.is-active::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:2px;width:22px;height:3px;border-radius:var(--r-pill);background:var(--primary)}
.nav-cta{flex:none}
.nav-menu-cta{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;flex:none;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--primary);background:var(--primary-light)}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--primary);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;background:var(--primary);transition:transform .18s var(--ease)}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
.nav-toggle.is-open span{background:transparent}
.nav-toggle.is-open span::before{transform:translateY(5px) rotate(45deg)}
.nav-toggle.is-open span::after{transform:translateY(-5px) rotate(-45deg)}
/* ===== Hero ===== */
.hero{position:relative;padding:clamp(36px,5vw,60px) 0 clamp(40px,5vw,72px);overflow:hidden}
.hero::after{
  content:"";position:absolute;left:-120px;top:8%;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,101,122,.10),rgba(20,101,122,0) 66%);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(32px,5vw,64px);align-items:center;min-height:calc(78vh - 96px);position:relative;z-index:1}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary-dark);background:var(--primary-light);border:1px solid rgba(20,101,122,.16);padding:6px 14px;border-radius:var(--r-pill);margin-bottom:22px}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.hero h1{font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.28;letter-spacing:-.01em}
.hero h1 em{font-style:normal;color:var(--primary);box-shadow:inset 0 -10px 0 rgba(224,154,52,.22)}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--text-2);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:30px}
.hero-badges li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.hero-badges svg{width:16px;height:16px;flex:none}
.wave-deco{display:flex;align-items:flex-end;gap:5px;height:30px;margin-top:26px;opacity:.75}
.wave-deco span{width:5px;border-radius:3px;background:var(--primary);opacity:.26}
.wave-deco span:nth-child(1){height:10px}
.wave-deco span:nth-child(2){height:20px;opacity:.36}
.wave-deco span:nth-child(3){height:14px}
.wave-deco span:nth-child(4){height:26px;opacity:.42}
.wave-deco span:nth-child(5){height:18px;opacity:.32}
.wave-deco span:nth-child(6){height:12px}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3;height:auto;object-fit:cover;border-radius:16px;border:1px solid rgba(20,101,122,.14);box-shadow:var(--sh-2)}
.hero-visual::after{content:"";position:absolute;inset:auto 0 0 0;height:38%;border-radius:0 0 16px 16px;background:linear-gradient(to top,rgba(14,42,49,.28),rgba(14,42,49,0));pointer-events:none}
.hero-float{
  position:absolute;left:-18px;bottom:26px;background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--sh-2);padding:12px 16px;display:flex;align-items:center;gap:12px;
}
.hero-float strong{font-size:20px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.1}
.hero-float span{font-size:12.5px;color:var(--text-3);line-height:1.4}
/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;
  padding:11px 22px;font-size:15px;font-weight:600;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(20,101,122,.20)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(20,101,122,.26)}
.btn-ghost{background:#fff;border-color:#C9D8DD;color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}
.btn-invert{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-invert:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-block{width:100%}
.btn:active{transform:translateY(0)}
/* ===== 卡片通用 ===== */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:box-shadow .18s var(--ease),transform .18s var(--ease);overflow:hidden}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.card-body{padding:24px}
.card h3{font-size:19px;font-weight:600;line-height:1.45}
.card p{margin-top:10px;font-size:15px;color:var(--text-2);line-height:1.75}
.badge{display:inline-flex;align-items:center;font-size:12.5px;font-weight:600;color:var(--primary);background:var(--primary-light);border:1px solid rgba(20,101,122,.16);border-radius:var(--r-badge);padding:3px 9px}
.badge-accent{color:#9A6614;background:var(--accent-light);border-color:rgba(224,154,52,.32)}
.badge-invert{color:#DCEBEF;background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.22)}
/* ===== 业务/服务块（非对称） ===== */
.svc-main{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:340px;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);padding:30px;color:#fff}
.svc-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.svc-main::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(14,42,49,.86),rgba(14,42,49,.28));z-index:1}
.svc-main > *{position:relative;z-index:2}
.svc-main h3{font-size:clamp(20px,2.2vw,26px);font-weight:700;margin-top:14px}
.svc-main p{margin-top:12px;font-size:15px;color:rgba(242,247,248,.86);max-width:44ch}
.svc-main .text-link{color:#BFE2EA;margin-top:18px}
.svc-main .text-link:hover{color:#fff}
.svc-stack{display:grid;gap:20px;height:100%}
.svc-stack .card{height:100%}
.svc-stack .card-body{display:flex;flex-direction:column;height:100%;padding:24px}
.svc-stack .card-body .text-link{margin-top:auto;padding-top:16px}
.svc-icon{width:40px;height:40px;border-radius:11px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.svc-icon svg{width:20px;height:20px}
.zblock{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px);align-items:center;margin-top:clamp(28px,4vw,52px)}
.zblock.reverse .zb-media{order:2}
.zb-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line)}
.zb-text h3{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.4}
.zb-text p{margin-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.8}
.zb-list{margin-top:18px;display:grid;gap:10px}
.zb-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.7}
.zb-list li::before{content:"";flex:none;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--accent)}
/* ===== 数据带 ===== */
.stats-band{background:var(--deep);color:var(--invert);padding:clamp(42px,5vw,68px) 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.stat{padding:0 clamp(16px,2.4vw,32px);border-left:1px solid rgba(255,255,255,.12)}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{display:block;font-size:clamp(32px,4vw,52px);font-weight:700;line-height:1.05;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stat-label{display:block;margin-top:10px;font-size:14px;color:rgba(242,247,248,.72);line-height:1.6}
/* ===== 案例区 ===== */
.case-card{display:block;color:inherit;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .18s var(--ease),transform .18s var(--ease)}
.case-card:hover{color:inherit;box-shadow:var(--sh-2);transform:translateY(-2px)}
.case-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.case-card .case-body{padding:22px 24px 24px}
.case-card h3{font-size:18px;font-weight:600;line-height:1.5;transition:color .18s var(--ease)}
.case-card:hover h3{color:var(--primary)}
.case-card p{margin-top:10px;font-size:14.5px;color:var(--text-2)}
.case-meta{margin-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.case-strip{margin-top:22px;display:flex;gap:16px;overflow-x:auto;padding:4px 2px 16px;scrollbar-width:thin}
.case-strip::-webkit-scrollbar{height:6px}
.case-strip::-webkit-scrollbar-thumb{background:#CFDDE2;border-radius:99px}
.case-thumb{flex:0 0 218px;background:#fff;border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .18s var(--ease),transform .18s var(--ease)}
.case-thumb:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.case-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.case-thumb span{display:block;padding:12px 14px 14px;font-size:13.5px;color:var(--text-2);line-height:1.6}
/* ===== 最新信息（CMS） ===== */
.news-lead{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);height:100%;transition:box-shadow .18s var(--ease),transform .18s var(--ease)}
.news-lead:hover{box-shadow:var(--sh-2),inset 3px 0 0 var(--primary);transform:translateY(-2px)}
.news-lead img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-lead .nl-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.news-lead h3{font-size:19px;font-weight:600;line-height:1.5}
.news-lead h3 a{color:var(--text)}
.news-lead h3 a:hover{color:var(--primary);text-decoration:underline}
.news-lead p{margin-top:12px;font-size:14.5px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.nl-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.time-meta{font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums}
.news-mini{display:grid;gap:12px}
.news-mini li a{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px 18px;box-shadow:var(--sh-1);color:inherit;
  transition:box-shadow .18s var(--ease),transform .18s var(--ease);
}
.news-mini li a:hover{box-shadow:var(--sh-2),inset 3px 0 0 var(--primary);transform:translateY(-2px);color:inherit}
.news-mini h3{font-size:16px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-mini a:hover h3{color:var(--primary)}
.nm-foot{margin-top:10px;display:flex;align-items:center;justify-content:space-between;gap:12px}
/* ===== 空态 ===== */
.empty-state{text-align:center;padding:54px 24px;background:#fff;border:1px dashed #D6E2E6;border-radius:var(--r-card)}
.empty-state svg{width:48px;height:48px;margin:0 auto 16px;display:block;opacity:.6}
.empty-main{font-size:16px;font-weight:600;color:var(--text-2)}
.empty-sub{margin-top:8px;font-size:13.5px;color:var(--text-3)}
/* ===== 方案步骤 ===== */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--sh-1);transition:box-shadow .18s var(--ease),transform .18s var(--ease)}
.step:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.step-num{width:42px;height:42px;border-radius:50%;border:1.5px solid var(--primary);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;background:#fff}
.step h3{margin-top:18px;font-size:18px;font-weight:600;line-height:1.5}
.step p{margin-top:10px;font-size:14.5px;color:var(--text-2);line-height:1.75}
.step .step-hr{height:1px;background:var(--line);margin:16px 0 0}
/* ===== FAQ ===== */
.faq-list{display:grid;gap:10px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-img);box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow .18s var(--ease)}
.faq-item.is-open{box-shadow:var(--sh-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:14px 20px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text);line-height:1.55;
}
.faq-q:hover{color:var(--primary)}
.faq-mark{flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;position:relative;transition:transform .18s var(--ease),border-color .18s var(--ease)}
.faq-mark::before,.faq-mark::after{content:"";position:absolute;background:var(--primary);border-radius:2px}
.faq-mark::before{width:11px;height:1.6px}
.faq-mark::after{width:1.6px;height:11px}
.faq-item.is-open .faq-mark{transform:rotate(45deg);border-color:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a-inner{padding:0 20px 20px;border-top:1px dashed var(--line);margin-top:0}
.faq-a-inner p{padding-top:16px;font-size:15px;color:var(--text-2);line-height:1.8;max-width:72ch}
/* ===== 联系 CTA ===== */
.contact-wrap{display:grid;grid-template-columns:5fr 7fr;gap:clamp(24px,3.5vw,48px);align-items:start}
.contact-info{background:var(--deep);color:var(--invert);border-radius:var(--r-card);padding:34px 30px;position:relative;overflow:hidden}
.contact-info::after{content:"";position:absolute;right:-70px;top:-70px;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle,rgba(224,154,52,.22),rgba(224,154,52,0) 68%)}
.contact-info h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.45;position:relative;z-index:1}
.contact-info > p{margin-top:14px;font-size:15px;color:rgba(242,247,248,.76);line-height:1.8;position:relative;z-index:1}
.info-list{margin-top:26px;display:grid;gap:18px;position:relative;z-index:1}
.info-list li{display:flex;gap:14px}
.info-list .ii{width:36px;height:36px;flex:none;border-radius:10px;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center}
.info-list .ii svg{width:18px;height:18px}
.info-list strong{display:block;font-size:14.5px;font-weight:600;color:#fff}
.info-list span{display:block;margin-top:4px;font-size:13.5px;color:rgba(242,247,248,.68);line-height:1.65}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:clamp(24px,3vw,36px)}
.form-card h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.45}
.form-card > p{margin-top:12px;font-size:14.5px;color:var(--text-2)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:24px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--text)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid #D8E2E6;border-radius:var(--r-input);background:#fff;
  padding:0 14px;height:46px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea{height:auto;min-height:118px;padding:12px 14px;line-height:1.7;resize:vertical}
.field select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2314657A' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:40px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(20,101,122,.16)}
.field input::placeholder,.field textarea::placeholder{color:#A9B7BD}
.check-row{display:flex;align-items:flex-start;gap:10px;grid-column:1/-1}
.check-row input{width:18px;height:18px;margin-top:3px;flex:none;accent-color:var(--primary)}
.check-row label{font-size:13.5px;font-weight:400;color:var(--text-2);line-height:1.7}
.form-actions{grid-column:1/-1;display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:4px}
.form-tip{font-size:13px;color:var(--text-3)}
.form-msg{grid-column:1/-1;display:none;font-size:14px;padding:12px 14px;border-radius:var(--r-input);background:var(--primary-light);color:var(--primary-dark);border:1px solid rgba(20,101,122,.18)}
.form-msg.is-on{display:block}
/* ===== 页脚 ===== */
.site-footer{background:var(--deep);color:rgba(242,247,248,.78);margin-top:clamp(40px,5vw,72px);border-top:1px solid var(--accent)}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:36px;padding:clamp(44px,5.5vw,72px) 0 clamp(30px,4vw,44px)}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700}
.footer-brand:hover{color:#fff}
.footer-brand .brand-mark{background:var(--accent)}
.footer-about{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(242,247,248,.66);max-width:32ch}
.site-footer h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.01em}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:15px;color:rgba(242,247,248,.72);display:inline-block;transition:color .18s var(--ease),transform .18s var(--ease)}
.footer-links a:hover{color:#BFE2EA;transform:translateX(2px)}
.footer-contact{display:grid;gap:12px;font-size:14px;color:rgba(242,247,248,.7);line-height:1.75}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.footer-bottom p{font-size:13px;color:rgba(242,247,248,.56)}
.footer-bottom nav{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom nav a{font-size:13px;color:rgba(242,247,248,.6)}
.footer-bottom nav a:hover{color:#BFE2EA}
/* ===== 响应式：≤1024 ===== */
@media screen and (max-width:1024px){
  .nav-menu{
    position:absolute;top:calc(100% + 10px);left:0;right:0;margin-left:0;
    flex-direction:column;align-items:stretch;gap:4px;padding:10px;
    background:rgba(255,255,255,.98);border:1px solid var(--line);border-radius:22px;
    box-shadow:var(--sh-2);display:none;max-height:calc(100vh - 140px);overflow:auto;
  }
  .nav-menu.is-open{display:flex}
  .nav-menu a{padding:12px 16px;border-radius:14px;font-size:15.5px}
  .nav-menu a.is-active{background:var(--primary-light)}
  .nav-menu a.is-active::after{display:none}
  .nav-toggle{display:inline-flex}
  .nav-pill{position:relative}
  .nav-menu-cta{display:block;margin-top:4px}
  .nav-menu-cta .btn{width:100%}
  .hero-grid{grid-template-columns:1fr;min-height:0;gap:36px}
  .hero-visual{order:2}
  .hero-float{left:auto;right:14px;bottom:14px}
  .zblock{grid-template-columns:1fr;gap:26px}
  .zblock.reverse .zb-media{order:0}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .case-strip{gap:14px}
  .contact-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
/* ===== 响应式：≤768 ===== */
@media screen and (max-width:768px){
  .container{padding:0 20px}
  .hero{padding-top:28px}
  .hero-badges{gap:10px 18px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:26px 0}
  .stat{padding-left:18px}
  .stat:nth-child(odd){border-left:0;padding-left:0}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .sec-head{margin-bottom:26px}
}
/* ===== 响应式：≤520 ===== */
@media screen and (max-width:520px){
  .nav-cta{display:none}
  .nav-pill{padding:8px 10px 8px 14px}
  .brand{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .hero-float{position:static;margin-top:14px;left:auto;right:auto;bottom:auto}
  .steps{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat-num{font-size:30px}
  .case-thumb{flex:0 0 180px}
  .faq-q{font-size:15.5px;padding:13px 16px}
  .faq-a-inner{padding:0 16px 18px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
/* ============================================================
   PG官方入口 · 文章详情页样式
   色彩推导：关键词指向「入口 / 通行 / 指引」，取冷调青蓝为主色，
   暖琥珀作指示性辅色，底色带青灰倾向，整体克制、清晰、可长读。
   ============================================================ */
:root{
  --primary:#14657A;
  --primary-dark:#0B4F63;
  --primary-light:#E4F0F3;
  --accent:#E09A34;
  --accent-light:#FBF1E1;
  --bg:#F6F8F9;
  --surface:#FFFFFF;
  --line:#E3EAED;
  --dark:#0E2A31;
  --text:#1C2B31;
  --muted:#5C7078;
  --faint:#8A9AA1;
  --inverse:#F2F7F8;
  --ok:#2E8B6B;
  --err:#C0392B;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,60,72,.05),0 6px 18px rgba(18,60,72,.06);
  --sh-2:0 10px 30px rgba(18,60,72,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --section:clamp(56px,7vw,104px);
  --container: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:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);}
a:hover{color:var(--primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.35;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  border:1px solid transparent;transition:all .18s var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 2px 10px rgba(20,101,122,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px rgba(20,101,122,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-secondary{background:#fff;color:var(--text);border-color:#C9D8DD;}
.btn-secondary:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);background:none;border:0;padding:4px 0;cursor:pointer;}
.btn-text:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:4px;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--r-badge);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:var(--primary-light);color:var(--primary-dark);border:1px solid rgba(20,101,122,.16);
}
.badge-accent{background:var(--accent-light);color:#8A5A12;border-color:rgba(224,154,52,.35);}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:13px;color:var(--muted);background:#fff;border:1px solid var(--line);
  transition:all .18s var(--ease);
}
.tag:hover{color:var(--primary);border-color:rgba(20,101,122,.35);background:var(--primary-light);}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0;}
.nav-pill{
  position:relative;display:flex;align-items:center;gap:18px;
  max-width:1180px;margin:0 auto;padding:10px 12px 10px 18px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.88);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:background-color .18s var(--ease),box-shadow .18s var(--ease);
}
.site-header.is-scrolled .nav-pill{background:rgba(255,255,255,.96);box-shadow:var(--sh-2);}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--text);letter-spacing:-.01em;flex-shrink:0;}
.brand:hover{color:var(--primary-dark);}
.brand-mark{
  width:22px;height:22px;border-radius:7px;flex-shrink:0;
  background:linear-gradient(140deg,var(--primary),var(--primary-dark));
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:16px;height:16px;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-menu > a{
  position:relative;padding:9px 13px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--muted);font-weight:500;white-space:nowrap;
}
.nav-menu > a:hover{color:var(--primary);background:var(--primary-light);}
.nav-menu > a.is-active{color:var(--primary);font-weight:600;}
.nav-menu > a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:3px;
  border-radius:3px;background:var(--primary);
}
.nav-menu-cta{display:none;}
.nav-cta{flex-shrink:0;}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;
  border:1px solid var(--line);background:#fff;border-radius:var(--r-pill);
  cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;position:relative;width:18px;height:2px;background:var(--primary);border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary);border-radius:2px;
  transition:transform .18s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:14px;color:var(--faint);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--faint);opacity:.7;}
.crumb .current{color:var(--primary);font-weight:600;}

/* ---------- 文章头部 ---------- */
.article-hero{background:#fff;padding:44px 0 36px;border-bottom:1px solid var(--line);}
.article-hero .eyebrow{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;}
.article-hero h1{
  font-size:clamp(26px,3.4vw,40px);
  max-width:900px;line-height:1.32;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  margin-top:20px;padding-top:18px;border-top:1px dashed var(--line);
  font-size:13.5px;color:var(--faint);font-variant-numeric:tabular-nums;
}
.article-meta .item{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--primary);opacity:.75;font-size:13px;}

/* ---------- 主体布局 ---------- */
.article-main{padding:clamp(38px,5vw,64px) 0 var(--section);}
.article-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;align-items:start;}
.article-reader{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:clamp(22px,3.4vw,44px);
}

/* ---------- 正文排版 ---------- */
.article-body{max-width:820px;font-size:17px;line-height:1.8;color:var(--text);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  font-size:clamp(20px,2.2vw,25px);margin:2.2em 0 .8em;
  padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:3px;background:var(--primary);
}
.article-body h3{font-size:19px;margin:1.8em 0 .7em;color:var(--primary-dark);}
.article-body h4{font-size:17px;margin:1.5em 0 .6em;}
.article-body ul{margin:0 0 1.2em;padding-left:0;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.6em;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.68em;width:7px;height:7px;border-radius:50%;background:var(--primary);
}
.article-body ol{counter-reset:item;margin:0 0 1.2em;}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:.6em;counter-increment:item;}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.28em;
  width:20px;height:20px;border-radius:50%;border:1px solid var(--primary);
  color:var(--primary);font-size:12px;font-weight:700;line-height:18px;text-align:center;
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;
  border-left:3px solid var(--primary);background:var(--primary-light);
  border-radius:0 var(--r-img) var(--r-img) 0;color:var(--primary-dark);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{text-decoration:underline;text-underline-offset:3px;}
.article-body img{
  max-width:100%;height:auto;margin:1.8em auto;border-radius:var(--r-img);
  box-shadow:var(--sh-1);object-fit:cover;
}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{font-size:13px;color:var(--faint);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;
}
.article-body thead th{background:var(--primary-light);color:var(--primary-dark);font-weight:600;text-align:left;}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#FAFCFC;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;
  background:#EEF3F5;color:var(--primary-dark);padding:2px 6px;border-radius:6px;
}
.article-body pre{
  background:#F1F5F7;border:1px solid var(--line);border-radius:var(--r-img);
  padding:16px 18px;overflow-x:auto;margin:1.6em 0;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;padding:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}

/* ---------- 空状态 ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:64px 20px;gap:14px;
}
.empty-state svg{width:48px;height:48px;stroke:rgba(20,101,122,.4);fill:none;stroke-width:1.4;}
.empty-state .title{font-size:17px;font-weight:600;color:var(--text);}
.empty-state .desc{font-size:14px;color:var(--faint);max-width:420px;}

/* ---------- 标签行 ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line);}
.tag-row .label{font-size:13.5px;color:var(--faint);margin-right:2px;}

/* ---------- 上下篇 ---------- */
.pager-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:38px;}
.pager-nav a{
  display:block;padding:18px 20px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);transition:all .18s var(--ease);
}
.pager-nav a:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(20,101,122,.28);}
.pager-nav .dir{display:block;font-size:12.5px;color:var(--faint);margin-bottom:6px;letter-spacing:.04em;}
.pager-nav .to{display:block;font-size:16px;font-weight:600;color:var(--text);}
.pager-nav a:hover .to{color:var(--primary);}
.pager-nav .right{text-align:right;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px;}
.side-card h3{font-size:15px;margin-bottom:14px;letter-spacing:.02em;}
.side-card h3::after{content:"";display:block;width:28px;height:3px;border-radius:2px;background:var(--accent);margin-top:9px;}
.side-list li{display:flex;gap:10px;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--muted);}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list .num{
  flex-shrink:0;width:20px;height:20px;border-radius:50%;border:1px solid var(--primary);
  color:var(--primary);font-size:11.5px;font-weight:700;line-height:18px;text-align:center;margin-top:2px;
  font-variant-numeric:tabular-nums;
}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--text);font-weight:500;
}
.side-links a:last-child{border-bottom:0;padding-bottom:0;}
.side-links a i{color:var(--faint);font-size:12px;transition:transform .18s var(--ease);}
.side-links a:hover{color:var(--primary);}
.side-links a:hover i{transform:translateX(3px);color:var(--primary);}
.side-card.dark{background:var(--dark);border-color:var(--dark);color:var(--inverse);}
.side-card.dark h3{color:#fff;}
.side-card.dark p{font-size:14px;color:rgba(242,247,248,.78);margin-bottom:16px;}
.side-card.dark .btn{width:100%;}

/* ---------- 相关推荐 ---------- */
.related{padding-top:var(--section);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);}
.section-head p{font-size:14.5px;color:var(--muted);margin-top:8px;max-width:640px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:transform .18s var(--ease),box-shadow .18s var(--ease),box-shadow .18s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.card-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--primary-light);}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card-thumb img{transform:scale(1.04);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:17.5px;line-height:1.45;}
.card:hover .card-body h3{color:var(--primary);}
.card-body .excerpt{
  font-size:14px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--faint);font-variant-numeric:tabular-nums;}

/* ---------- CTA 带 ---------- */
.cta-band{
  margin-top:var(--section);
  background:var(--primary-light);border:1px solid rgba(20,101,122,.16);
  border-radius:18px;padding:clamp(26px,3.6vw,44px);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--muted);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:var(--section);background:var(--dark);color:rgba(242,247,248,.82);border-top:1px solid var(--accent);}
.footer-grid{
  display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:40px;
  padding:clamp(44px,5vw,68px) 0 40px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-brand:hover{color:#fff;}
.footer-about{font-size:14.5px;line-height:1.8;color:rgba(242,247,248,.72);max-width:340px;}
.site-footer h3{font-size:14.5px;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:15px;color:rgba(242,247,248,.76);transition:all .18s var(--ease);}
.footer-links a:hover{color:#9FD3DF;transform:translateX(2px);}
.footer-contact{display:flex;flex-direction:column;gap:11px;font-size:14.5px;color:rgba(242,247,248,.72);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13.5px;color:rgba(242,247,248,.6);
}
.footer-bottom nav{display:flex;gap:20px;}
.footer-bottom a{color:rgba(242,247,248,.7);font-size:13.5px;}
.footer-bottom a:hover{color:#9FD3DF;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap;}
  .article-side .side-card{flex:1 1 280px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}

  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .nav-menu{
    display:none;position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:14px;border-radius:18px;background:#fff;
    border:1px solid var(--line);box-shadow:var(--sh-2);
    max-height:calc(100vh - 140px);overflow-y:auto;
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu > a{padding:13px 14px;border-radius:12px;font-size:15px;}
  .nav-menu > a.is-active::after{left:14px;right:auto;width:22px;bottom:8px;}
  .nav-menu-cta{display:block;margin-top:10px;}
  .nav-menu-cta .btn{width:100%;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .pager-nav{grid-template-columns:minmax(0,1fr);}
  .pager-nav .right{text-align:left;}
  .article-hero{padding:32px 0 26px;}
  .article-body{font-size:16.5px;}
  .section-head{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .site-header{padding:12px 0;}
  .nav-pill{padding:8px 10px 8px 14px;gap:10px;}
  .brand{font-size:15.5px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-band{padding:24px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .article-meta{gap:12px;}
  .article-reader{padding:20px 18px;}
}

/* roulang page: category1 */
/* ============ 设计变量：青蓝主色 + 暖琥珀点色，门廊与指示牌气质 ============ */
:root{
  --primary:#14657A;
  --primary-dark:#0B4F63;
  --primary-light:#E4F0F3;
  --accent:#E09A34;
  --accent-light:#FBF1E1;
  --bg:#F6F8F9;
  --surface:#FFFFFF;
  --line:#E3EAED;
  --line-strong:#C9D8DD;
  --ink:#1C2B31;
  --ink-2:#5C7078;
  --ink-3:#8A9AA1;
  --invert:#F2F7F8;
  --deep:#0E2A31;
  --success:#2E8B6B;
  --error:#C0392B;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(18,60,72,.05),0 6px 18px rgba(18,60,72,.06);
  --sh-2:0 10px 30px rgba(18,60,72,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:180ms var(--ease);
  --sec-y:clamp(56px,7vw,104px);
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.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;}

/* ============ 容器与栅格覆盖 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.grid-padding-x{margin-left:-12px;margin-right:-12px;}
.grid-padding-x>.cell{padding-left:12px;padding-right:12px;}
.grid-padding-y>.cell{padding-top:0;padding-bottom:0;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:0;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform var(--t),background-color var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(20,101,122,.18);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-secondary{background:#fff;color:var(--primary);border-color:var(--line-strong);}
.btn-secondary:hover{border-color:var(--primary);background:var(--primary-light);color:var(--primary-dark);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.65);}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}
.btn-light{background:#fff;color:var(--primary-dark);}
.btn-light:hover{color:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-block{width:100%;}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}

/* ============ 徽章与标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:var(--r-badge);
  font-size:12.5px;font-weight:600;line-height:1.4;letter-spacing:.02em;
}
.badge-soft{background:var(--primary-light);color:var(--primary-dark);}
.badge-accent{background:var(--accent-light);color:#8A5B14;border:1px solid rgba(224,154,52,.4);}
.badge-outline{background:rgba(255,255,255,.14);color:var(--invert);border:1px solid rgba(255,255,255,.4);}

/* ============ 悬浮胶囊导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:16px 0 8px;
}
.nav-pill{
  position:relative;
  display:flex;align-items:center;gap:14px;
  max-width:1180px;margin:0 auto;
  padding:10px 12px 10px 18px;
  border:1px solid var(--line);border-radius:999px;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  box-shadow:var(--sh-1);
  transition:box-shadow var(--t),background-color var(--t);
}
.site-header.is-scrolled .nav-pill{box-shadow:var(--sh-2);background:rgba(255,255,255,.96);}
.brand{
  display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;
  font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;
}
.brand:hover{color:var(--primary-dark);}
.brand-mark{
  width:22px;height:22px;border-radius:7px;flex:0 0 auto;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
}
.brand-mark svg{width:15px;height:15px;display:block;}

.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-menu>a{
  position:relative;
  padding:10px 12px;border-radius:999px;
  font-size:14.5px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:color var(--t),background-color var(--t);
}
.nav-menu>a:hover{color:var(--primary-dark);background:var(--primary-light);}
.nav-menu>a.is-active{color:var(--primary);font-weight:600;}
.nav-menu>a.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:3px;border-radius:2px;background:var(--primary);
}
.nav-menu-cta{display:none;}
.nav-cta{flex:0 0 auto;margin-left:6px;}

.nav-toggle{
  display:none;flex:0 0 auto;
  width:44px;height:44px;margin-left:auto;
  border:1px solid var(--line);border-radius:999px;background:#fff;
  position:relative;cursor:pointer;
  transition:border-color var(--t),background-color var(--t);
}
.nav-toggle:hover{border-color:var(--primary);background:var(--primary-light);}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:17px;height:2px;border-radius:2px;background:var(--primary-dark);
  transform:translateX(-50%);transition:transform var(--t),opacity var(--t);
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(45deg);top:0;background:var(--primary-dark);}
.nav-toggle[aria-expanded="true"] span::after{transform:rotate(-45deg);top:0;background:var(--primary-dark);}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;}
.breadcrumb a{color:rgba(242,247,248,.78);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:rgba(242,247,248,.45);}
.breadcrumb .current{color:#fff;font-weight:600;}

/* ============ 页面首屏 ============ */
.page-hero{
  position:relative;isolation:isolate;overflow:hidden;
  margin-top:-84px;padding:calc(84px + 46px) 0 clamp(52px,6vw,82px);
  min-height:440px;display:flex;align-items:center;
  border-radius:0 0 26px 26px;
}
.page-hero-media{position:absolute;inset:0;z-index:-2;}
.page-hero-media img{width:100%;height:100%;object-fit:cover;}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(104deg,rgba(11,79,99,.94) 0%,rgba(14,42,49,.82) 56%,rgba(14,42,49,.62) 100%);
}
.page-hero .breadcrumb{margin-bottom:22px;}
.page-hero h1{
  font-size:clamp(28px,4.2vw,42px);font-weight:700;line-height:1.28;letter-spacing:-.01em;
  color:#fff;max-width:19em;margin:16px 0 0;
}
.hero-lead{
  margin-top:16px;max-width:36em;
  font-size:clamp(15px,1.5vw,17px);line-height:1.8;color:rgba(242,247,248,.86);
}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 26px;
  margin-top:30px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.16);
}
.hero-meta li{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(242,247,248,.82);
}
.hero-meta i{color:var(--accent);font-size:12px;}
.hero-wave{position:absolute;right:-40px;bottom:-30px;width:420px;max-width:52vw;opacity:.16;z-index:-1;pointer-events:none;}

/* ============ 板块通用 ============ */
.section{padding:var(--sec-y) 0;}
.section-tight{padding-top:calc(var(--sec-y) * .62);}
.section-head{max-width:760px;margin-bottom:clamp(28px,3.4vw,40px);}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.34;letter-spacing:-.01em;color:var(--ink);
}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:15.5px;line-height:1.85;}
.section-head::after{
  content:"";display:block;width:44px;height:3px;border-radius:2px;background:var(--primary);margin-top:20px;
}
.section-alt{background:#fff;}

/* ============ 锚点侧栏 + 分组条目 ============ */
.guide-layout{align-items:flex-start;}
.aside-nav{
  position:sticky;top:104px;
  padding:22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
}
.aside-title{
  font-size:12.5px;font-weight:600;letter-spacing:.1em;color:var(--ink-3);
  text-transform:uppercase;margin-bottom:14px;
}
.aside-nav ol{display:flex;flex-direction:column;gap:2px;}
.aside-nav a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:10px;
  font-size:14.5px;font-weight:500;color:var(--ink-2);
  transition:background-color var(--t),color var(--t),transform var(--t);
}
.aside-nav a:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateX(2px);}
.aside-nav a .idx{
  flex:0 0 auto;width:22px;height:22px;border-radius:999px;
  display:grid;place-items:center;
  font-size:12px;font-weight:600;font-variant-numeric:tabular-nums;
  border:1px solid var(--line-strong);color:var(--primary);
}
.aside-note{
  margin-top:18px;padding-top:18px;border-top:1px dashed var(--line);
  font-size:13px;line-height:1.75;color:var(--ink-2);
}

.entry-group{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:clamp(20px,2.4vw,30px);
  scroll-margin-top:110px;
}
.entry-group + .entry-group{margin-top:20px;}
.group-head{display:flex;gap:16px;align-items:flex-start;margin-bottom:8px;}
.group-index{
  flex:0 0 auto;width:38px;height:38px;border-radius:999px;
  display:grid;place-items:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
  color:var(--primary);border:1px solid rgba(20,101,122,.35);background:var(--primary-light);
}
.group-head h2{font-size:19px;font-weight:700;line-height:1.4;color:var(--ink);}
.group-desc{margin-top:6px;font-size:14px;color:var(--ink-2);line-height:1.75;}

.entry-list{margin-top:16px;border-top:1px solid var(--line);}
.entry-item{
  display:flex;align-items:center;gap:18px;
  padding:18px 4px;border-bottom:1px dashed var(--line);
  transition:background-color var(--t);
}
.entry-item:last-child{border-bottom:0;}
.entry-item:hover{background:linear-gradient(90deg,rgba(228,240,243,.55),rgba(228,240,243,0));}
.entry-no{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;
  font-size:12.5px;font-weight:600;font-variant-numeric:tabular-nums;
  color:var(--primary-dark);background:var(--primary-light);
}
.entry-body{flex:1 1 auto;min-width:0;}
.entry-body h3{font-size:16.5px;font-weight:600;line-height:1.5;color:var(--ink);}
.entry-body p{margin-top:4px;font-size:14px;line-height:1.7;color:var(--ink-2);}
.entry-link{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;white-space:nowrap;
}
.entry-link span{transition:transform var(--t);display:inline-block;}
.entry-link:hover span{transform:translateX(3px);}

/* ============ 图文核对区 ============ */
.check-media{
  border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  position:relative;
}
.check-media img{width:100%;height:100%;min-height:280px;object-fit:cover;}
.check-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 16px;font-size:12.5px;color:rgba(242,247,248,.9);
  background:linear-gradient(180deg,rgba(14,42,49,0),rgba(14,42,49,.78));
}
.check-list{display:flex;flex-direction:column;gap:14px;}
.check-list li{
  display:flex;gap:14px;padding:16px 18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:box-shadow var(--t),transform var(--t);
}
.check-list li:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.check-list i{
  flex:0 0 auto;width:26px;height:26px;border-radius:7px;margin-top:2px;
  display:grid;place-items:center;font-size:12px;
  color:#8A5B14;background:var(--accent-light);
}
.check-list h3{font-size:15.5px;font-weight:600;color:var(--ink);}
.check-list p{margin-top:4px;font-size:14px;line-height:1.72;color:var(--ink-2);}

/* ============ 数据带 ============ */
.stat-band{
  background:var(--deep);color:var(--invert);
  padding:clamp(38px,4.4vw,60px) 0;
}
.stat-grid{align-items:center;}
.stat-item{
  padding:18px 8px;text-align:center;
  border-left:1px solid rgba(255,255,255,.12);
}
.stat-item:first-child{border-left:0;}
.stat-num{
  display:block;font-size:clamp(32px,4vw,52px);font-weight:700;line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;color:#8FC7D3;
}
.stat-num em{font-style:normal;font-size:.5em;font-weight:600;color:var(--accent);margin-left:4px;}
.stat-label{display:block;margin-top:10px;font-size:13.5px;color:rgba(242,247,248,.72);}

/* ============ 场景卡 ============ */
.scene-card{
  height:100%;padding:clamp(22px,2.4vw,28px);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.scene-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--line-strong);}
.scene-icon{
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;margin-bottom:18px;
  background:var(--primary-light);color:var(--primary-dark);font-size:18px;
}
.scene-card h3{font-size:17px;font-weight:700;line-height:1.5;color:var(--ink);}
.scene-card p{margin-top:10px;font-size:14.5px;line-height:1.78;color:var(--ink-2);}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);}
.scene-tags span{
  font-size:12.5px;padding:4px 10px;border-radius:var(--r-badge);
  background:var(--bg);border:1px solid var(--line);color:var(--ink-2);
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--sh-1);overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item + .faq-item{margin-top:10px;}
.faq-item.is-open{border-color:var(--line-strong);box-shadow:var(--sh-2);}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;gap:16px;
  padding:14px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
}
.faq-q h3{flex:1 1 auto;font-size:16px;font-weight:600;line-height:1.55;color:var(--ink);}
.faq-q .plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;
  display:grid;place-items:center;border:1px solid var(--line-strong);
  color:var(--primary);font-size:15px;line-height:1;
  transition:transform var(--t),background-color var(--t),border-color var(--t),color var(--t);
}
.faq-q:hover h3{color:var(--primary-dark);}
.faq-q:hover .plus{background:var(--primary-light);border-color:var(--primary);}
.faq-item.is-open .plus{transform:rotate(45deg);background:var(--primary);border-color:var(--primary);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms var(--ease);}
.faq-a-inner{
  padding:0 20px 22px 62px;
  border-top:1px dashed var(--line);margin-top:0;padding-top:16px;
  font-size:14.5px;line-height:1.85;color:var(--ink-2);max-width:72ch;
}
.faq-item.is-open .faq-a{max-height:400px;}

/* ============ CTA 带 ============ */
.cta-band{
  background:linear-gradient(120deg,var(--primary-light) 0%,#F2F8FA 100%);
  border:1px solid rgba(20,101,122,.16);border-radius:18px;
  padding:clamp(26px,3.4vw,44px);
  display:flex;flex-wrap:wrap;align-items:center;gap:24px;
}
.cta-band .cta-copy{flex:1 1 420px;min-width:0;}
.cta-band h2{font-size:clamp(20px,2.3vw,26px);font-weight:700;line-height:1.4;color:var(--primary-dark);}
.cta-band p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--ink-2);}
.cta-band .btn-row{margin-top:0;flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--sec-y);
  background:var(--deep);color:rgba(242,247,248,.78);
  border-top:2px solid var(--accent);
  padding:clamp(44px,5vw,68px) 0 0;
}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:34px;}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:#fff;margin-bottom:14px;
}
.footer-brand:hover{color:#fff;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(242,247,248,.66);max-width:30em;}
.site-footer h3{
  font-size:14px;font-weight:600;color:#fff;letter-spacing:.02em;margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14.5px;color:rgba(242,247,248,.72);
  transition:color var(--t),transform var(--t);
}
.footer-links a:hover{color:#A6D6E0;transform:translateX(2px);}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;line-height:1.7;color:rgba(242,247,248,.7);}
.footer-bottom{
  margin-top:clamp(32px,4vw,48px);padding:20px 0;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
}
.footer-bottom p{font-size:13px;color:rgba(242,247,248,.6);}
.footer-bottom nav{display:flex;gap:18px;}
.footer-bottom nav a{font-size:13px;color:rgba(242,247,248,.6);}
.footer-bottom nav a:hover{color:#A6D6E0;}

/* ============ 空态（列表无数据时使用） ============ */
.empty-state{
  padding:56px 20px;text-align:center;
  background:#fff;border:1px dashed var(--line-strong);border-radius:var(--r-card);
}
.empty-state svg{width:48px;height:48px;margin:0 auto 16px;opacity:.4;color:var(--primary);}
.empty-state p{font-size:15px;color:var(--ink-2);}
.empty-state span{display:block;margin-top:6px;font-size:13px;color:var(--ink-3);}

/* ============ 响应式：≤1024px ============ */
@media screen and (max-width:1024px){
  .nav-toggle{display:block;}
  .nav-cta{display:none;}
  .nav-menu{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    max-width:calc(100vw - 32px);
    display:none;flex-direction:column;align-items:stretch;gap:4px;margin:0;
    padding:14px;background:#fff;border:1px solid var(--line);
    border-radius:20px;box-shadow:var(--sh-2);
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu>a{padding:13px 14px;border-radius:12px;font-size:15px;}
  .nav-menu>a.is-active{background:var(--primary-light);}
  .nav-menu>a.is-active::after{display:none;}
  .nav-menu-cta{display:block;margin-top:8px;padding-top:12px;border-top:1px solid var(--line);}
  .nav-menu-cta .btn{width:100%;}
  .aside-nav{position:static;top:auto;}
  .aside-nav ol{flex-direction:row;flex-wrap:wrap;gap:8px;}
  .aside-nav a{padding:9px 12px;background:var(--bg);border:1px solid var(--line);font-size:14px;}
  .guide-layout{display:block;}
  .entry-list-wrap{margin-top:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}

/* ============ 响应式：≤768px ============ */
@media screen and (max-width:768px){
  .page-hero{margin-top:-76px;padding:calc(76px + 34px) 0 52px;min-height:0;border-radius:0 0 20px 20px;}
  .page-hero h1{font-size:clamp(24px,6.4vw,30px);}
  .hero-wave{display:none;}
  .entry-item{flex-wrap:wrap;gap:12px;}
  .entry-link{width:100%;justify-content:flex-start;padding-left:44px;}
  .stat-item{border-left:0;border-top:1px solid rgba(255,255,255,.12);padding:20px 8px;}
  .stat-item:nth-child(-n+2){border-top:0;}
  .faq-a-inner{padding-left:20px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-band .btn-row{width:100%;}
  .cta-band .btn{flex:1 1 auto;}
}

/* ============ 响应式：≤640px ============ */
@media screen and (max-width:640px){
  .container{padding:0 20px;}
  .grid-padding-x{margin-left:-10px;margin-right:-10px;}
  .grid-padding-x>.cell{padding-left:10px;padding-right:10px;}
  .nav-pill{padding:8px 8px 8px 14px;gap:10px;}
  .brand{font-size:15.5px;}
  .check-media img{min-height:210px;}
  .btn-row{gap:10px;}
  .btn{min-height:46px;padding:0 18px;font-size:14.5px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .section{padding:clamp(44px,9vw,64px) 0;}
}

/* roulang page: category2 */
/* ==========================================================================
   设计变量层：主色取自青蓝（入口 / 通行 / 指引），辅色为暖琥珀，
   底色用带青灰倾向的浅白，整体保持门廊加指示牌的克制气质。
   ========================================================================== */
:root{
  --primary:#14657A;
  --primary-dark:#0B4F63;
  --primary-light:#E4F0F3;
  --primary-tint:#A8D6E2;
  --accent:#E09A34;
  --accent-light:#FBF1E1;
  --bg:#F6F8F9;
  --surface:#FFFFFF;
  --line:#E3EAED;
  --line-soft:#EEF3F5;
  --deep:#0E2A31;
  --text:#1C2B31;
  --text-2:#5C7078;
  --text-3:#8A9AA1;
  --text-inv:#F2F7F8;
  --ok:#2E8B6B;
  --err:#C0392B;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(18,60,72,.05), 0 6px 18px rgba(18,60,72,.06);
  --sh-2:0 10px 30px rgba(18,60,72,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}

/* ============================ reset / base ============================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{
  margin:0;
  color:var(--text);
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.35;
}
h1{font-size:clamp(28px,4.2vw,44px);}
h2{font-size:clamp(22px,2.6vw,32px);}
h3{font-size:19px;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--primary);text-decoration:none;transition:color var(--t),border-color var(--t),background var(--t),transform var(--t);}
a:hover{color:var(--primary-dark);text-decoration:underline;}
img{max-width:100%;display:block;border-radius:var(--r-img);}
ul,ol{margin:0;padding:0;list-style:none;}
figure{margin:0;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
::selection{background:var(--primary-light);color:var(--primary-dark);}

/* ============================== 容器 =================================== */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:clamp(56px,7vw,104px) 0;}
.section-plain{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-tight{padding:clamp(40px,5vw,72px) 0;}

/* ============================== 栅格 =================================== */
.grid-x{display:flex;flex-wrap:wrap;}
.grid-x.gap-lg{margin-left:-12px;margin-right:-12px;}
.grid-x.gap-lg > .cell{padding-left:12px;padding-right:12px;}
.align-middle{align-items:center;}
.cell{min-width:0;}

/* ============================== 导航 =================================== */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:80;
  padding:16px 0;
  pointer-events:none;
}
.site-header .container{pointer-events:auto;}
.nav-pill{
  position:relative;
  display:flex;
  align-items:center;
  gap:18px;
  max-width:1180px;
  margin:0 auto;
  padding:10px 12px 10px 16px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:var(--sh-1);
  transition:box-shadow var(--t),background var(--t);
}
.site-header.is-scrolled .nav-pill{
  box-shadow:var(--sh-2);
  background:rgba(255,255,255,.96);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:var(--text);
  letter-spacing:-.01em;
  white-space:nowrap;
  text-decoration:none;
}
.brand:hover{color:var(--primary-dark);text-decoration:none;}
.brand-mark{
  width:22px;
  height:22px;
  border-radius:6px;
  background:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
}
.brand-mark svg{width:16px;height:16px;display:block;}
.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-menu > a{
  position:relative;
  display:inline-block;
  padding:9px 12px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:999px;
  white-space:nowrap;
}
.nav-menu > a:hover{
  color:var(--primary-dark);
  background:var(--primary-light);
  text-decoration:none;
}
.nav-menu > a.is-active{
  color:var(--primary);
  font-weight:600;
}
.nav-menu > a.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  transform:translateX(-50%);
  bottom:2px;
  width:18px;
  height:3px;
  border-radius:3px;
  background:var(--primary);
}
.nav-menu-cta{display:none;}
.nav-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  margin-left:auto;
  border:1px solid var(--line);
  border-radius:999px;
  background:#fff;
  padding:0;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:50%;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--primary-dark);
  transform:translateX(-50%);
  transition:transform var(--t),opacity var(--t);
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateX(-50%) rotate(45deg);top:0;}
.nav-toggle[aria-expanded="true"] span::after{transform:translateX(-50%) rotate(-45deg);top:0;}

/* ============================== 按钮 =================================== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:11px 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  text-decoration:none;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn:hover{text-decoration:none;}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 6px 16px rgba(20,101,122,.18);
}
.btn-primary:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 10px 22px rgba(20,101,122,.24);
}
.btn-accent{
  background:var(--accent);
  color:#3A2507;
  box-shadow:0 6px 16px rgba(224,154,52,.22);
}
.btn-accent:hover{
  background:#CE8820;
  color:#2E1D05;
  transform:translateY(-1px);
}
.btn-secondary{
  background:#fff;
  color:var(--primary-dark);
  border-color:#C9D8DD;
}
.btn-secondary:hover{
  background:var(--primary-light);
  border-color:var(--primary);
  color:var(--primary-dark);
  transform:translateY(-1px);
}
.btn-ghost{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.62);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.14);
  border-color:#fff;
  color:#fff;
  transform:translateY(-1px);
}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.btn-sm{min-height:40px;padding:9px 16px;font-size:14px;}

/* ============================ 徽章 / 标签 =============================== */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:var(--r-badge);
  border:1px solid rgba(20,101,122,.24);
  background:var(--primary-light);
  color:var(--primary-dark);
  font-size:12.5px;
  font-weight:600;
  line-height:1.6;
}
.badge-inv{
  background:rgba(255,255,255,.14);
  border-color:rgba(255,255,255,.4);
  color:#fff;
}
.badge-accent{
  background:var(--accent-light);
  border-color:rgba(224,154,52,.42);
  color:#8A5A12;
}

/* ============================== 面包屑 ================================= */
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:14px;
  color:rgba(242,247,248,.72);
  margin-bottom:18px;
}
.breadcrumb a{color:rgba(242,247,248,.86);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb span[aria-hidden]{color:rgba(242,247,248,.5);}
.breadcrumb .current{color:#fff;font-weight:600;}

/* ============================ 分类页首屏 =============================== */
.page-hero{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  min-height:360px;
  padding:156px 0 76px;
  background:var(--deep);
}
.page-hero-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:0;
}
.page-hero-veil{
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(14,42,49,.58),rgba(14,42,49,.36));
}
.page-hero-inner{position:relative;z-index:2;color:var(--text-inv);max-width:840px;}
.page-hero h1{color:#fff;margin:14px 0 16px;}
.page-hero-sub{
  font-size:16.5px;
  line-height:1.8;
  color:rgba(242,247,248,.88);
  max-width:640px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============================ 板块标题 ================================= */
.section-head{margin-bottom:32px;max-width:760px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{margin-bottom:12px;}
.section-sub{color:var(--text-2);font-size:15.5px;}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--primary);
  margin-bottom:10px;
}
.wave-divider{margin:0 0 32px;}
.wave-divider svg{width:100%;height:26px;display:block;}

/* ========================== 主区：方案对照 ============================= */
.plan-list{
  border-top:1px solid var(--line);
}
.plan-item{
  display:grid;
  grid-template-columns:76px 1fr;
  gap:20px;
  padding:28px 0;
  border-bottom:1px solid var(--line);
}
.plan-num{
  font-size:clamp(26px,3.2vw,38px);
  font-weight:700;
  color:rgba(20,101,122,.28);
  font-variant-numeric:tabular-nums;
  line-height:1.15;
  letter-spacing:-.02em;
}
.plan-body h3{margin-bottom:8px;}
.plan-body > p{color:var(--text-2);font-size:15.5px;}
.plan-tag{
  display:inline-block;
  margin:0 0 10px;
  font-size:12.5px;
  font-weight:600;
  color:#8A5A12;
  background:var(--accent-light);
  border-radius:var(--r-badge);
  padding:3px 9px;
}
.tick-list{margin:12px 0 14px;display:grid;gap:8px;}
.tick-list li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.7;
}
.tick-list li::before{
  content:"";
  position:absolute;
  left:2px;
  top:9px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--primary);
  opacity:.6;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
}
.text-link::after{content:"→";transition:transform var(--t);}
.text-link:hover::after{transform:translateX(3px);}

/* 左侧粘性说明卡 */
.aside-card{
  position:sticky;
  top:110px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:26px;
}
.aside-card h2{font-size:21px;margin-bottom:12px;}
.aside-card p{font-size:15px;color:var(--text-2);}
.aside-figure{margin:18px 0;border-radius:var(--r-img);overflow:hidden;}
.aside-figure img{width:100%;height:190px;object-fit:cover;border-radius:var(--r-img);}
.aside-points{margin-top:16px;border-top:1px dashed var(--line);padding-top:16px;display:grid;gap:12px;}
.aside-points li{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:10px;
  font-size:14.5px;
  color:var(--text-2);
}
.aside-points strong{color:var(--text);font-weight:600;display:block;font-size:14.5px;}
.aside-idx{
  width:24px;height:24px;flex:0 0 auto;border-radius:50%;
  border:1px solid rgba(20,101,122,.35);color:var(--primary);
  font-size:12.5px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;
  margin-top:3px;
}

/* ========================== 判断要素三列 =============================== */
.factor{
  padding-left:22px;
  border-left:2px solid var(--primary-light);
  height:100%;
}
.factor-index{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:34px;
  border-radius:50%;
  border:1px solid rgba(20,101,122,.4);
  color:var(--primary-dark);
  font-size:14px;
  font-weight:700;
  margin-bottom:12px;
}
.factor h3{margin-bottom:8px;}
.factor p{color:var(--text-2);font-size:15px;}
.factor ul{margin-top:12px;display:grid;gap:8px;}
.factor li{
  font-size:14.5px;
  color:var(--text-2);
  padding-bottom:8px;
  border-bottom:1px dashed var(--line-soft);
}
.factor li:last-child{border-bottom:0;padding-bottom:0;}

/* ============================ 数据带 =================================== */
.stat-band{background:var(--deep);color:var(--text-inv);padding:clamp(40px,5vw,64px) 0;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.stat-item{padding:6px 24px;border-left:1px solid rgba(255,255,255,.12);}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-num{
  display:block;
  font-size:clamp(32px,4vw,52px);
  font-weight:700;
  color:var(--primary-tint);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  line-height:1.1;
}
.stat-num small{font-size:.45em;font-weight:600;color:rgba(242,247,248,.7);margin-left:4px;}
.stat-label{display:block;margin-top:8px;font-size:14px;color:rgba(242,247,248,.78);}

/* ============================ 步骤区 =================================== */
.figure-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.figure-card img{width:100%;height:250px;object-fit:cover;border-radius:0;}
.figure-card figcaption{
  padding:12px 18px;
  font-size:13px;
  color:var(--text-3);
  border-top:1px solid var(--line-soft);
}
.step-row{display:grid;grid-template-columns:1fr 1fr;gap:22px 26px;margin-top:22px;}
.step{
  padding-top:16px;
  border-top:1px solid var(--line);
}
.step-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:30px;height:30px;
  border-radius:50%;
  border:1px solid rgba(20,101,122,.45);
  color:var(--primary-dark);
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:10px;
}
.step h3{font-size:17px;margin-bottom:6px;}
.step p{font-size:14.5px;color:var(--text-2);}

/* ============================== FAQ =================================== */
.faq-list{max-width:900px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:10px;
  overflow:hidden;
  transition:box-shadow var(--t),border-color var(--t);
}
.faq-item:hover{box-shadow:var(--sh-1);}
.faq-item.is-open{border-color:rgba(20,101,122,.35);box-shadow:var(--sh-1);}
.faq-h{margin:0;font-size:17px;}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:14px 20px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  line-height:1.5;
}
.faq-q:hover{color:var(--primary-dark);}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid rgba(20,101,122,.3);
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  font-weight:600;
  transition:transform var(--t),background var(--t),color var(--t);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff;border-color:var(--primary);}
.faq-a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows var(--t);
}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-inner p{
  margin:0;
  padding:0 20px 20px;
  border-top:1px dashed var(--line);
  padding-top:16px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.8;
  max-width:72ch;
}

/* ============================== CTA =================================== */
.cta-band{
  background:var(--primary-light);
  border:1px solid rgba(20,101,122,.16);
  border-radius:20px;
  padding:clamp(30px,4vw,52px);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  flex-wrap:wrap;
}
.cta-band h2{margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15.5px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============================== 页脚 =================================== */
.site-footer{
  position:relative;
  background:var(--deep);
  color:var(--text-inv);
  margin-top:clamp(56px,7vw,96px);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:50%;
  transform:translateX(-50%);
  width:70px;height:3px;
  background:var(--accent);
  border-radius:0 0 3px 3px;
}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 2fr 3fr 3fr;
  gap:34px;
  padding:clamp(48px,6vw,72px) 0 40px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.footer-brand:hover{color:#fff;text-decoration:none;}
.footer-about{font-size:14.5px;color:rgba(242,247,248,.72);line-height:1.8;max-width:320px;}
.site-footer h3{
  font-size:15px;
  color:#fff;
  margin-bottom:14px;
  font-weight:600;
}
.footer-links{display:grid;gap:10px;}
.footer-links a{
  display:inline-block;
  font-size:15px;
  color:rgba(242,247,248,.74);
}
.footer-links a:hover{
  color:var(--primary-tint);
  transform:translateX(2px);
  text-decoration:none;
}
.footer-contact{display:grid;gap:10px;font-size:14.5px;color:rgba(242,247,248,.74);line-height:1.7;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 26px;
  font-size:13.5px;
  color:rgba(242,247,248,.6);
}
.footer-bottom p{margin:0;}
.footer-bottom nav{display:flex;gap:18px;}
.footer-bottom a{color:rgba(242,247,248,.7);}
.footer-bottom a:hover{color:var(--primary-tint);text-decoration:none;}

/* ============================ 响应式断点 =============================== */
@media (max-width:1024px){
  .nav-toggle{display:inline-flex;}
  .nav-menu{
    position:absolute;
    top:calc(100% + 12px);
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:12px;
    border:1px solid var(--line);
    border-radius:18px;
    background:rgba(255,255,255,.98);
    box-shadow:var(--sh-2);
    max-width:calc(100vw - 32px);
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu > a{padding:12px 14px;border-radius:12px;font-size:15px;}
  .nav-menu > a.is-active::after{display:none;}
  .nav-menu-cta{display:block;margin-top:8px;}
  .nav-menu-cta .btn{width:100%;}
  .nav-cta{padding:9px 16px;font-size:14px;min-height:40px;}
  .page-hero{padding:132px 0 64px;}
  .aside-card{position:static;margin-bottom:28px;}
  .plan-item{grid-template-columns:60px 1fr;gap:16px;}
  .stat-grid{grid-template-columns:1fr 1fr;gap:26px 0;}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:768px){
  .container{padding-left:20px;padding-right:20px;}
  .nav-pill{gap:10px;padding:8px 10px 8px 14px;}
  .brand{font-size:15.5px;}
  .page-hero{padding:120px 0 56px;min-height:auto;}
  .page-hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .grid-x.gap-lg{margin-left:-10px;margin-right:-10px;}
  .grid-x.gap-lg > .cell{padding-left:10px;padding-right:10px;}
  .step-row{grid-template-columns:1fr;}
  .factor{border-left:0;border-top:2px solid var(--primary-light);padding-left:0;padding-top:18px;}
  .cta-band{padding:26px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .stat-grid{grid-template-columns:1fr 1fr;}
  .stat-item{padding:6px 16px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  h1{font-size:26px;}
  .page-hero{padding:112px 0 48px;}
  .plan-item{grid-template-columns:1fr;gap:8px;padding:22px 0;}
  .plan-num{font-size:28px;}
  .stat-grid{grid-template-columns:1fr;gap:22px;}
  .stat-item{border-left:0;padding-left:0;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.12);}
  .stat-item:last-child{border-bottom:0;padding-bottom:0;}
  .faq-q{font-size:15px;padding:14px 16px;}
  .faq-a-inner p{padding-left:16px;padding-right:16px;}
  .aside-card{padding:20px;}
  .nav-cta{display:none;}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --primary:#14657A;
  --primary-dark:#0B4F63;
  --primary-light:#E4F0F3;
  --accent:#E09A34;
  --accent-light:#FBF1E1;
  --bg:#F6F8F9;
  --surface:#FFFFFF;
  --line:#E3EAED;
  --dark:#0E2A31;
  --text:#1C2B31;
  --text-2:#5C7078;
  --text-3:#8A9AA1;
  --reverse:#F2F7F8;
  --ok:#2E8B6B;
  --err:#C0392B;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(18,60,72,.05),0 6px 18px rgba(18,60,72,.06);
  --sh-2:0 10px 30px rgba(18,60,72,.10);
  --t:180ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:92px;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--primary-dark);text-decoration:underline}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.3}
h1{font-size:clamp(28px,4.2vw,44px)}
h2{font-size:clamp(22px,2.6vw,32px);color:var(--primary-dark)}
h3{font-size:19px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.tnum{font-variant-numeric:tabular-nums}

/* ============ 容器 / 板块 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:clamp(56px,7vw,104px) 0}
.section--tight{padding:clamp(40px,5vw,64px) 0}
.section--plain{background:var(--surface)}
.section-head{max-width:780px;margin-bottom:clamp(28px,3.4vw,40px)}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--text-2)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);letter-spacing:.06em;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px}
.lead{color:var(--text-2);font-size:16.5px}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);text-decoration:none}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:var(--surface);color:var(--primary);border-color:#C9D8DD}
.btn-secondary:hover{border-color:var(--primary);background:var(--primary-light);color:var(--primary-dark)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff;border-color:#fff}
.btn-block{width:100%}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-badge);font-size:12.5px;font-weight:600;line-height:1.6;background:var(--primary-light);color:var(--primary-dark);border:1px solid rgba(20,101,122,.18);white-space:nowrap}
.badge-amber{background:var(--accent-light);color:#96631A;border-color:rgba(224,154,52,.35)}
.badge-line{background:transparent;color:var(--text-2);border-color:var(--line)}

/* ============ 悬浮胶囊导航 ============ */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;padding-top:16px}
.nav-pill{
  position:relative;display:flex;align-items:center;gap:14px;
  max-width:1180px;margin:0 auto;padding:10px 14px 10px 18px;
  border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  box-shadow:var(--sh-1);
  transition:box-shadow var(--t),background var(--t);
}
.site-header.is-scrolled .nav-pill{background:rgba(255,255,255,.96);box-shadow:var(--sh-2)}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--primary-dark);text-decoration:none;white-space:nowrap}
.brand:hover{color:var(--primary-dark);text-decoration:none}
.brand-mark{width:22px;height:22px;border-radius:7px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));display:inline-flex;align-items:center;justify-content:center;flex:0 0 22px}
.brand-mark svg{width:14px;height:14px}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-menu a{position:relative;display:inline-flex;align-items:center;padding:9px 12px;border-radius:999px;font-size:15px;color:var(--text-2);text-decoration:none;transition:color var(--t),background var(--t)}
.nav-menu a:hover{color:var(--primary-dark);background:var(--primary-light);text-decoration:none}
.nav-menu a.is-active{color:var(--primary);font-weight:600}
.nav-menu a.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:3px;background:var(--primary)}
.nav-menu a.btn{color:#fff;background:var(--primary)}
.nav-menu a.btn:hover{background:var(--primary-dark);color:#fff}
.nav-menu-cta{display:none}
.nav-cta{margin-left:12px;flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;margin-left:auto;border:1px solid var(--line);border-radius:999px;background:var(--surface);cursor:pointer;position:relative;padding:0}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{position:absolute;left:50%;transform:translateX(-50%);width:18px;height:2px;border-radius:2px;background:var(--primary-dark);content:"";transition:transform var(--t),opacity var(--t)}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateX(-50%) rotate(45deg);top:0}
.nav-toggle[aria-expanded="true"] span::after{transform:translateX(-50%) rotate(-45deg);top:0}

/* ============ 面包屑 ============ */
.crumb-bar{padding:18px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}
.crumb-sep{color:var(--text-3)}
.crumb [aria-current="page"]{color:var(--primary);font-weight:600}

/* ============ 顶部主视觉 ============ */
.page-hero{position:relative;margin-top:20px;overflow:hidden;border-radius:20px;min-height:340px;display:flex;align-items:center}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;background-image:url('/assets/images/backpic/back-1.png')}
.page-hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(96deg,rgba(14,42,49,.9) 0%,rgba(14,42,49,.68) 52%,rgba(14,42,49,.34) 100%)}
.page-hero-inner{position:relative;z-index:1;padding-top:clamp(48px,6vw,72px);padding-bottom:clamp(48px,6vw,72px);color:var(--reverse);max-width:760px}
.page-hero h1{color:#fff;margin:16px 0 14px}
.page-hero p{color:rgba(242,247,248,.86);font-size:16.5px;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:24px;font-size:14px;color:rgba(242,247,248,.78)}
.hero-tags span{display:inline-flex;align-items:center;gap:8px}
.hero-tags span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ============ 流程总览 ============ */
.overview-grid{display:grid;gap:28px;align-items:start}
.overview-copy p{color:var(--text-2);margin-bottom:14px}
.overview-note{margin-top:22px;padding:18px 20px;border-left:3px solid var(--accent);background:var(--accent-light);border-radius:0 var(--r-card) var(--r-card) 0;font-size:15px;color:#6B4A15}
.step-list{display:grid;gap:14px}
.step-item{display:flex;gap:16px;padding:20px 22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t)}
.step-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.step-num{flex:0 0 40px;width:40px;height:40px;border-radius:50%;border:1.5px solid var(--primary);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:15px}
.step-item h3{font-size:17px;margin-bottom:6px}
.step-item p{color:var(--text-2);font-size:15px}

/* ============ 竖向时间轴 ============ */
.timeline{position:relative;padding-top:8px}
.timeline::before{content:"";position:absolute;left:23px;top:16px;bottom:24px;width:2px;background:linear-gradient(180deg,var(--primary),rgba(20,101,122,.12))}
.tl-item{position:relative;padding-left:74px;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-node{position:absolute;left:0;top:0;width:48px;height:48px;border-radius:50%;background:var(--surface);border:2px solid var(--primary);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;box-shadow:0 0 0 6px var(--bg);transition:background var(--t),color var(--t)}
.tl-item:hover .tl-node{background:var(--primary);color:#fff}
.tl-body{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.tl-item:hover .tl-body{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFDDE2}
.tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:10px}
.tl-head h3{font-size:18px}
.tl-body > p{color:var(--text-2);margin-bottom:14px}
.tl-points{display:grid;gap:8px}
.tl-points li{position:relative;padding-left:20px;font-size:15px;color:var(--text-2)}
.tl-points li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;background:var(--primary-light);border:1.5px solid var(--primary)}
.tl-points li strong{color:var(--text);font-weight:600}

/* ============ 并行与等待 ============ */
.split-grid{display:grid;gap:24px}
.info-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 26px 24px;box-shadow:var(--sh-1);height:100%;transition:transform var(--t),box-shadow var(--t)}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.info-card h3{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.info-card h3 .dot{width:10px;height:10px;border-radius:3px;background:var(--primary);flex:0 0 10px}
.info-card h3 .dot--amber{background:var(--accent)}
.info-card > p{color:var(--text-2);font-size:15px;margin-bottom:16px}
.plain-list{display:grid;gap:10px}
.plain-list li{position:relative;padding-left:18px;font-size:15px;color:var(--text-2);line-height:1.7}
.plain-list li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.photo-card{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);background:var(--surface)}
.photo-card img{width:100%;height:230px;object-fit:cover}
.photo-card figcaption{padding:16px 20px;font-size:14.5px;color:var(--text-2);background:var(--surface);border-top:1px solid var(--line)}

/* ============ 材料清单 ============ */
.check-grid{display:grid;gap:20px}
.check-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:10px;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.check-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFDDE2}
.check-card h3{font-size:17px}
.check-card p{color:var(--text-2);font-size:15px;flex:1}
.check-icon{width:38px;height:38px;border-radius:10px;background:var(--primary-light);color:var(--primary);display:inline-flex;align-items:center;justify-content:center}
.check-icon svg{width:20px;height:20px}

/* ============ 数据带 ============ */
.stats-band{background:var(--dark);border-top:1px solid rgba(224,154,52,.5)}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:clamp(32px,4vw,52px) 20px;text-align:center;border-right:1px solid rgba(255,255,255,.12)}
.stat:last-child{border-right:0}
.stat .num{display:block;font-size:clamp(32px,4vw,52px);font-weight:700;color:var(--accent);line-height:1.1;font-variant-numeric:tabular-nums}
.stat .label{display:block;margin-top:10px;font-size:14.5px;color:rgba(242,247,248,.78)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:10px;max-width:900px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow var(--t),border-color var(--t)}
.faq-item.is-open{border-color:#C6D8DE;box-shadow:var(--sh-2)}
.faq-q{margin:0}
.faq-q button{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 20px;min-height:56px;background:transparent;border:0;text-align:left;font-size:16.5px;font-weight:600;color:var(--text);cursor:pointer;transition:color var(--t)}
.faq-q button:hover{color:var(--primary)}
.faq-icon{position:relative;flex:0 0 22px;width:22px;height:22px;border-radius:50%;border:1.5px solid var(--primary);transition:transform var(--t)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon::before{width:10px;height:1.6px}
.faq-icon::after{width:1.6px;height:10px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms cubic-bezier(.2,.7,.3,1)}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 20px 20px;border-top:1px dashed var(--line);margin-top:0;padding-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.8;max-width:72ch}

/* ============ CTA 带 ============ */
.cta-band{background:var(--primary-light);border-radius:20px;padding:clamp(32px,4vw,52px);position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;border:2px solid rgba(20,101,122,.14)}
.cta-grid{display:grid;gap:32px;align-items:center;position:relative;z-index:1}
.cta-copy h2{margin-bottom:12px}
.cta-copy p{color:var(--text-2);max-width:46ch}
.cta-points{display:grid;gap:10px;margin-top:20px}
.cta-points li{position:relative;padding-left:20px;font-size:15px;color:var(--text-2)}
.cta-points li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:50%;background:var(--primary)}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:7px;color:var(--text)}
.field input,.field select,.field textarea{width:100%;padding:0 14px;height:46px;border:1px solid #D8E2E6;border-radius:var(--r-input);background:var(--surface);color:var(--text);font-size:15px;transition:border-color var(--t),box-shadow var(--t)}
.field textarea{height:auto;min-height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' fill='none' stroke='%2314657A' stroke-width='1.8' stroke-linecap='round'/%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{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(20,101,122,.16)}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.form-hint{font-size:13px;color:var(--text-3);margin-top:12px}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(242,247,248,.78);margin-top:clamp(56px,7vw,104px);border-top:1px solid rgba(224,154,52,.5)}
.footer-grid{display:grid;gap:32px;padding:clamp(44px,5vw,68px) 0 36px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;text-decoration:none;margin-bottom:14px}
.footer-brand:hover{color:#fff;text-decoration:none}
.footer-about{font-size:14.5px;line-height:1.8;max-width:34ch;color:rgba(242,247,248,.72)}
.site-footer h3{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:15px;color:rgba(242,247,248,.78);text-decoration:none;transition:color var(--t),transform var(--t)}
.footer-links a:hover{color:#9FD3DF;transform:translateX(2px);text-decoration:none}
.footer-contact{display:grid;gap:10px;font-size:14.5px;color:rgba(242,247,248,.72)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;padding:18px 0 28px;border-top:1px solid rgba(255,255,255,.08);font-size:13.5px;color:rgba(242,247,248,.6)}
.footer-bottom nav{display:flex;gap:18px}
.footer-bottom a{color:rgba(242,247,248,.72)}
.footer-bottom a:hover{color:#9FD3DF}

/* ============ 响应式 ============ */
@media (min-width:641px){
  .overview-grid{grid-template-columns:1fr 1fr;gap:36px}
  .split-grid{grid-template-columns:1fr 1fr}
  .cta-grid{grid-template-columns:1.1fr .9fr}
  .check-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1.2fr 1.4fr}
}
@media (min-width:1025px){
  .overview-grid{grid-template-columns:5fr 7fr;gap:44px}
  .check-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1.5fr .8fr 1.1fr 1.4fr}
}
@media (max-width:1024px){
  .nav-menu{
    display:none;position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:12px;border-radius:18px;border:1px solid var(--line);
    background:rgba(255,255,255,.98);box-shadow:var(--sh-2);
    max-width:calc(100vw - 32px);
  }
  .nav-menu.is-open{display:flex}
  .nav-menu a{padding:13px 14px;border-radius:12px;font-size:15.5px}
  .nav-menu a.is-active::after{left:14px;right:auto;width:26px;bottom:6px}
  .nav-menu-cta{display:block;margin-top:8px}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid rgba(255,255,255,.12)}
  .photo-card img{height:200px}
}
@media (max-width:640px){
  body{padding-top:82px}
  .container{padding:0 20px}
  .nav-pill{padding:8px 10px 8px 14px;gap:8px}
  .brand{font-size:16px}
  .page-hero{border-radius:16px;min-height:0;margin-top:14px}
  .page-hero-bg::after{background:linear-gradient(180deg,rgba(14,42,49,.86) 0%,rgba(14,42,49,.66) 100%)}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .tl-item{padding-left:62px}
  .tl-node{width:42px;height:42px;font-size:14px;box-shadow:0 0 0 5px var(--bg)}
  .timeline::before{left:20px}
  .tl-body{padding:18px 18px}
  .faq-q button{font-size:15.5px;padding:0 16px;min-height:58px}
  .faq-a p{padding-left:16px;padding-right:16px}
  .cta-band{border-radius:16px;padding:26px 20px}
  .check-grid{grid-template-columns:1fr}
  .photo-card img{height:180px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category5 */
/* ===================== 设计变量层 ===================== */
:root{
  --primary:#14657A;
  --primary-dark:#0B4F63;
  --primary-soft:#E4F0F3;
  --accent:#E09A34;
  --accent-soft:#FBF1E1;
  --bg:#F6F8F9;
  --surface:#FFFFFF;
  --line:#E3EAED;
  --line-strong:#C9D8DD;
  --dark:#0E2A31;
  --text:#1C2B31;
  --text-2:#5C7078;
  --text-3:#8A9AA1;
  --invert:#F2F7F8;
  --success:#2E8B6B;
  --error:#C0392B;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(18,60,72,.05),0 6px 18px rgba(18,60,72,.06);
  --sh-2:0 10px 30px rgba(18,60,72,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec-gap:clamp(56px,7vw,104px);
  --font:PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,-apple-system,Segoe UI,sans-serif;
}

/* ===================== reset / base ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);}
a:hover{color:var(--primary-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;
}
button{font-family:inherit;}
h1,h2,h3{font-weight:700;letter-spacing:-.01em;color:var(--text);}
h1{font-size:clamp(28px,4.2vw,44px);line-height:1.22;}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;}
h3{font-size:19px;line-height:1.45;}
p{color:var(--text);}
strong{font-weight:600;}

/* ===================== 容器 / 栅格 ===================== */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--sec-gap) 0;}
.section-tight{padding:clamp(40px,5vw,72px) 0;}
.section-head{max-width:760px;margin-bottom:34px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.08em;font-weight:600;
  color:var(--primary);background:var(--primary-soft);
  border-radius:var(--r-badge);padding:5px 12px;margin-bottom:14px;
}
.section-head p{margin-top:12px;color:var(--text-2);font-size:16px;}
.divider-short{width:44px;height:3px;background:var(--primary);border-radius:2px;margin-top:18px;}

/* ===================== 悬浮胶囊导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:16px 0 6px;
  background:linear-gradient(180deg,rgba(246,248,249,.96),rgba(246,248,249,.5) 70%,rgba(246,248,249,0));
}
.nav-pill{
  position:relative;
  display:flex;align-items:center;gap:18px;
  max-width:1180px;margin:0 auto;
  padding:10px 12px 10px 16px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--sh-1);
  transition:box-shadow .18s var(--ease),background-color .18s var(--ease);
}
.site-header.is-scrolled .nav-pill{box-shadow:var(--sh-2);background:rgba(255,255,255,.96);}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:var(--text);letter-spacing:-.01em;
  white-space:nowrap;
}
.brand:hover{color:var(--primary-dark);}
.brand-mark{
  width:26px;height:26px;flex:0 0 26px;border-radius:8px;
  background:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:16px;height:16px;}
.nav-menu{
  display:flex;align-items:center;gap:2px;
  margin-left:auto;
}
.nav-menu > a{
  position:relative;
  display:inline-block;
  padding:8px 13px;
  font-size:15px;color:var(--text-2);border-radius:999px;
  white-space:nowrap;
}
.nav-menu > a::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:3px;border-radius:3px;background:var(--primary);
  transition:width .18s var(--ease);
}
.nav-menu > a:hover{color:var(--primary-dark);background:var(--primary-soft);}
.nav-menu > a.is-active{color:var(--primary);font-weight:600;}
.nav-menu > a.is-active::after{width:22px;}
.nav-menu-cta{display:none;}
.nav-cta{flex:0 0 auto;padding:11px 20px;font-size:15px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;flex:0 0 44px;
  align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  cursor:pointer;
}
.nav-toggle span{
  position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text);
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .18s var(--ease),top .18s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;
  font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(20,101,122,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-secondary{background:#fff;color:var(--primary);border-color:var(--line-strong);}
.btn-secondary:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-dark);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.btn-block{width:100%;}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

/* ===================== 面包屑 ===================== */
.breadcrumb-bar{padding:14px 0 0;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--text-3);
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline;}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--primary);font-weight:600;}

/* ===================== 顶部主视觉 ===================== */
.page-hero{
  margin-top:16px;
  border-radius:18px;
  overflow:hidden;
  position:relative;
  min-height:300px;
  display:flex;align-items:center;
  background-image:linear-gradient(120deg,rgba(14,42,49,.72),rgba(14,42,49,.38)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  box-shadow:var(--sh-1);
}
.page-hero-inner{padding:clamp(34px,5vw,64px) clamp(22px,4vw,56px);max-width:820px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:var(--r-badge);
  background:rgba(224,154,52,.18);
  border:1px solid rgba(224,154,52,.55);
  color:#F7D9A8;font-size:12.5px;font-weight:600;letter-spacing:.06em;
  margin-bottom:16px;
}
.page-hero h1{color:#fff;text-shadow:0 2px 18px rgba(0,0,0,.25);}
.page-hero p{
  margin-top:16px;color:rgba(242,247,248,.88);font-size:16.5px;max-width:52ch;
}
.page-hero .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}

/* ===================== 信息卡矩阵 ===================== */
.matrix-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;
}
.info-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 26px;
  box-shadow:var(--sh-1);
  transition:box-shadow .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease);
}
.info-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--line-strong);}
.info-card .icon-box{
  width:48px;height:48px;border-radius:12px;
  background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.info-card .icon-box svg{width:24px;height:24px;stroke:var(--primary);}
.info-card h3{margin-bottom:10px;}
.info-card p{color:var(--text-2);font-size:15.5px;}
.info-card .meta-tag{
  display:inline-block;margin-top:16px;
  font-size:12.5px;font-weight:600;color:var(--primary-dark);
  background:var(--accent-soft);
  border:1px solid rgba(224,154,52,.42);
  border-radius:var(--r-badge);padding:4px 10px;
}

/* ===================== 简介图文区 ===================== */
.about-split{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:clamp(28px,4vw,56px);align-items:center;
}
.about-media{position:relative;}
.about-media img{
  width:100%;height:auto;aspect-ratio:16/11;object-fit:cover;
  border-radius:16px;box-shadow:var(--sh-2);
  border:1px solid var(--line);
}
.about-media::after{
  content:"";position:absolute;left:-14px;bottom:-14px;width:120px;height:120px;
  border:1px solid var(--primary-soft);border-radius:16px;z-index:-1;
}
.about-copy p{color:var(--text-2);margin-top:16px;font-size:16.5px;}
.about-facts{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;
}
.fact-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:14px;color:var(--text-2);
}
.fact-chip i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block;}

/* ===================== 确认清单 ===================== */
.checklist{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 40px;
}
.check-item{
  display:flex;gap:18px;padding:26px 0;
  border-bottom:1px solid var(--line);
}
.check-num{
  flex:0 0 46px;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--primary);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
}
.check-item h3{margin-bottom:6px;font-size:18px;}
.check-item p{color:var(--text-2);font-size:15.5px;}

/* ===================== 表单与地址 ===================== */
.contact-grid{
  display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);
  gap:26px;align-items:start;
}
.panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:clamp(24px,3vw,36px);
  box-shadow:var(--sh-1);
}
.panel-head h2{font-size:clamp(20px,2.2vw,26px);}
.panel-head p{color:var(--text-2);font-size:15px;margin-top:10px;}
.form-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;margin-top:26px;
}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--text);}
.field label .req{color:var(--error);margin-left:4px;}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;height:46px;
  padding:0 14px;
  font-family:inherit;font-size:15px;color:var(--text);
  background:#fff;
  border:1px solid #D8E2E6;border-radius:var(--r-input);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea{height:auto;min-height:132px;padding:12px 14px;line-height:1.7;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(--primary);
  box-shadow:0 0 0 4px rgba(20,101,122,.16);
}
.field select{
  appearance:none;-webkit-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 d='M1 1l5 5 5-5' stroke='%235C7078' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
  padding-right:38px;
}
.consent{
  grid-column:1 / -1;
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--text-2);line-height:1.6;
}
.consent input{
  width:18px;height:18px;margin-top:2px;flex:0 0 18px;
  accent-color:var(--primary);
}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:14px;}
.form-actions .hint{font-size:13px;color:var(--text-3);}
.form-feedback{
  grid-column:1 / -1;display:none;
  padding:12px 16px;border-radius:var(--r-input);
  font-size:14.5px;background:var(--primary-soft);
  border:1px solid rgba(20,101,122,.28);color:var(--primary-dark);
}
.form-feedback.is-visible{display:block;}

.address-list{margin-top:20px;display:flex;flex-direction:column;gap:14px;}
.address-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.address-list li svg{width:18px;height:18px;flex:0 0 18px;margin-top:4px;stroke:var(--primary);}
.address-list strong{color:var(--text);display:block;font-weight:600;font-size:15px;}
.map-placeholder{
  margin-top:24px;
  height:200px;border-radius:var(--r-img);
  background:
    repeating-linear-gradient(45deg,rgba(20,101,122,.05) 0 12px,rgba(20,101,122,0) 12px 24px),
    var(--primary-soft);
  border:1px dashed var(--line-strong);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  text-align:center;padding:20px;
}
.map-placeholder svg{width:34px;height:34px;stroke:var(--primary);opacity:.65;}
.map-placeholder span{font-size:14px;color:var(--text-2);}
.map-placeholder small{font-size:12.5px;color:var(--text-3);}

/* ===================== CTA 带 ===================== */
.cta-band{
  background:var(--primary-soft);
  border:1px solid rgba(20,101,122,.16);
  border-radius:18px;
  padding:clamp(28px,4vw,46px);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
}
.cta-band h2{font-size:clamp(20px,2.3vw,27px);}
.cta-band p{color:var(--text-2);margin-top:10px;max-width:56ch;font-size:15.5px;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ===================== 页脚 ===================== */
.site-footer{
  margin-top:clamp(56px,7vw,96px);
  background:var(--dark);
  color:rgba(242,247,248,.78);
  border-top:1px solid rgba(224,154,52,.55);
  padding-top:clamp(44px,5vw,64px);
}
.footer-grid{
  display:grid;grid-template-columns:4fr 2fr 3fr 3fr;gap:36px;
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  color:#fff;font-size:17px;font-weight:700;margin-bottom:16px;
}
.footer-brand:hover{color:#fff;}
.footer-brand .brand-mark{background:var(--primary);}
.site-footer h3{
  color:#fff;font-size:15px;font-weight:600;letter-spacing:.02em;margin-bottom:18px;
}
.footer-about{font-size:14.5px;line-height:1.85;color:rgba(242,247,248,.68);max-width:34ch;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{
  color:rgba(242,247,248,.72);font-size:15px;
  transition:color .18s var(--ease),transform .18s var(--ease);
  display:inline-block;
}
.footer-links a:hover{color:#9FD3DE;transform:translateX(2px);}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14.5px;color:rgba(242,247,248,.7);}
.footer-bottom{
  margin-top:clamp(36px,4vw,52px);
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13.5px;color:rgba(242,247,248,.6);}
.footer-bottom nav{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom nav a{font-size:13.5px;color:rgba(242,247,248,.68);}
.footer-bottom nav a:hover{color:#9FD3DE;}

/* ===================== 断点 ===================== */
@media (max-width:1024px){
  .nav-toggle{display:inline-flex;}
  .nav-menu{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    max-width:calc(100vw - 32px);
    padding:14px;
    background:rgba(255,255,255,.98);
    border:1px solid var(--line);
    border-radius:18px;
    box-shadow:var(--sh-2);
    margin-left:0;
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu > a{padding:12px 14px;border-radius:12px;font-size:15.5px;}
  .nav-menu > a::after{display:none;}
  .nav-menu > a.is-active{background:var(--primary-soft);}
  .nav-menu-cta{display:block;margin-top:8px;}
  .nav-menu-cta .btn{width:100%;}
  .nav-cta{display:none;}
  .brand{margin-right:auto;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .about-split{grid-template-columns:1fr;}
  .about-media::after{display:none;}
  .contact-grid{grid-template-columns:1fr;}
  .matrix-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .page-hero{min-height:260px;border-radius:14px;}
  .matrix-grid{grid-template-columns:1fr;}
  .checklist{grid-template-columns:1fr;gap:0;}
  .form-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .site-header{padding-top:12px;}
  .nav-pill{padding:8px 10px 8px 12px;gap:10px;}
  .brand{font-size:15.5px;}
  .brand-mark{width:24px;height:24px;flex:0 0 24px;}
  .btn{padding:12px 18px;font-size:14.5px;}
  .page-hero-inner{padding:28px 20px;}
  .page-hero p{font-size:15.5px;}
  .info-card{padding:22px 20px;}
  .panel{padding:22px 20px;}
  .check-item{gap:14px;padding:20px 0;}
  .check-num{flex:0 0 40px;width:40px;height:40px;font-size:14px;}
  .footer-bottom nav{gap:14px;}
}

/* roulang page: category4 */
/* ===== 设计变量：青蓝主色 + 暖琥珀点色 + 青灰浅底 ===== */
:root{
  --primary:#14657A;
  --primary-dark:#0B4F63;
  --primary-light:#E4F0F3;
  --accent:#E09A34;
  --accent-light:#FBF1E1;
  --bg:#F6F8F9;
  --surface:#FFFFFF;
  --line:#E3EAED;
  --ink:#1C2B31;
  --ink-2:#5C7078;
  --ink-3:#8A9AA1;
  --dark:#0E2A31;
  --invert:#F2F7F8;
  --ok:#2E8B6B;
  --err:#C0392B;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,60,72,.05), 0 6px 18px rgba(18,60,72,.06);
  --sh-2:0 10px 30px rgba(18,60,72,.10);
  --dur:180ms;
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap-section:clamp(56px,7vw,104px);
}

/* ===== reset / base ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.35;color:var(--ink)}
h1{font-size:clamp(28px,4.2vw,44px)}
h2{font-size:clamp(22px,2.6vw,32px)}
h3{font-size:19px}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease),border-color var(--dur) var(--ease)}
a:hover{color:var(--primary-dark);text-decoration:underline}
ul,ol{margin:0 0 1em;padding-left:1.15em}
li{margin:.35em 0}
button,input,select,textarea{font:inherit;color:inherit;margin:0}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:var(--primary-light);color:var(--primary-dark)}

/* ===== 容器与栅格辅助 ===== */
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px;width:100%}
@media (min-width:641px){
  .grid-x>.cell.medium-6{width:50%}
}
@media (min-width:1025px){
  .grid-x>.cell.large-3{width:25%}
  .grid-x>.cell.large-4{width:33.3333%}
  .grid-x>.cell.large-5{width:41.6666%}
  .grid-x>.cell.large-7{width:58.3333%}
  .grid-x>.cell.large-8{width:66.6666%}
}
.section{padding-top:var(--gap-section);padding-bottom:0}
.section:last-of-type{padding-bottom:var(--gap-section)}
.section-head{max-width:760px;margin-bottom:clamp(28px,3.4vw,40px)}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:16.5px}
.eyebrow{
  display:inline-block;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--primary);
  background:var(--primary-light);
  border-radius:var(--r-badge);
  padding:4px 10px;
  margin:0 0 14px;
}
.rule-short{width:44px;height:3px;border-radius:3px;background:var(--primary);margin:0 0 18px}

/* ===== 悬浮胶囊导航 ===== */
.site-header{position:sticky;top:0;z-index:80;padding-top:16px;pointer-events:none}
.nav-pill{
  pointer-events:auto;
  display:flex;
  align-items:center;
  gap:18px;
  max-width:1180px;
  margin:0 auto;
  padding:10px 12px 10px 18px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  transition:box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease);
  position:relative;
}
.nav-pill.is-scrolled{box-shadow:var(--sh-2);background:rgba(255,255,255,.96)}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--ink);white-space:nowrap}
.brand:hover{color:var(--primary);text-decoration:none}
.brand-mark{
  width:30px;height:30px;border-radius:9px;flex:0 0 30px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
}
.brand-mark svg{width:18px;height:18px}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-menu>a{
  position:relative;
  font-size:15px;
  color:var(--ink-2);
  padding:9px 12px;
  border-radius:8px;
  white-space:nowrap;
}
.nav-menu>a:hover{color:var(--primary);background:var(--primary-light);text-decoration:none}
.nav-menu>a.is-active{color:var(--primary);font-weight:600}
.nav-menu>a.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:2px;width:22px;height:3px;border-radius:3px;background:var(--primary);
}
.nav-menu-cta{display:none}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform var(--dur) var(--ease);
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-5px) rotate(-45deg)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:10px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform var(--dur) var(--ease),background-color var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(20,101,122,.22)}
.btn-primary:hover{background:var(--primary-dark);color:#fff}
.btn-ghost{background:#fff;border-color:#C9D8DD;color:var(--ink)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-block{width:100%}

/* ===== 面包屑 ===== */
.crumb-bar{padding:22px 0 0}
.breadcrumb{font-size:14px;color:var(--ink-3);display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--ink-3)}
.breadcrumb .current{color:var(--primary);font-weight:600}

/* ===== Hero ===== */
.hero-cat{
  margin-top:18px;
  position:relative;
  color:var(--invert);
  background:var(--dark) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.hero-cat::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,42,49,.76),rgba(14,42,49,.88))}
.hero-cat .container{position:relative;z-index:1}
.hero-inner{padding:clamp(50px,7vw,84px) 0;max-width:820px}
.hero-badge{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.06em;
  color:#FBE6C6;background:rgba(224,154,52,.20);
  border:1px solid rgba(224,154,52,.48);
  border-radius:var(--r-badge);padding:4px 10px;margin:0 0 18px;
}
.hero-cat h1{color:#fff;max-width:19ch}
.hero-cat .hero-sub{
  margin:16px 0 0;font-size:17px;line-height:1.8;color:rgba(242,247,248,.86);max-width:56ch;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-badges{
  display:flex;flex-wrap:wrap;gap:10px 26px;margin:30px 0 0;padding:0;list-style:none;
  font-size:14px;color:rgba(242,247,248,.82);
}
.hero-badges li{display:flex;align-items:center;gap:8px;margin:0}
.hero-badges li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ===== 分组速览卡 ===== */
.pick-card{
  height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:24px 22px;
  display:flex;flex-direction:column;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.pick-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.pick-num{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--accent);
  color:var(--accent);font-size:14px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;background:var(--accent-light);
}
.pick-card h3{margin-bottom:10px}
.pick-card p{color:var(--ink-2);font-size:15px;margin-bottom:18px}
.pick-link{margin-top:auto;font-size:14.5px;font-weight:600}
.pick-link::after{content:" →";transition:transform var(--dur) var(--ease)}
.pick-link:hover::after{content:" →"}

/* ===== 自查清单区 ===== */
.check-list{list-style:none;padding:0;margin:0;counter-reset:step}
.check-list li{
  position:relative;
  padding:16px 0 16px 46px;
  border-bottom:1px dashed var(--line);
  color:var(--ink-2);
  font-size:15.5px;
}
.check-list li:first-child{padding-top:4px}
.check-list li:last-child{border-bottom:0;padding-bottom:0}
.check-list li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:16px;
  width:30px;height:30px;border-radius:50%;
  border:1px solid var(--primary);color:var(--primary);
  font-size:12.5px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--surface);
}
.check-list li:first-child::before{top:4px}
.check-list strong{display:block;color:var(--ink);font-size:16px;font-weight:600;margin-bottom:2px}

.figure-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;height:100%;
}
.figure-card img{width:100%;height:260px;object-fit:cover;border-bottom:1px solid var(--line)}
.figure-body{padding:20px 22px 24px}
.figure-body h3{margin-bottom:8px}
.figure-body p{color:var(--ink-2);font-size:15px}
.figure-note{
  display:inline-block;margin-top:12px;font-size:12.5px;color:var(--primary);
  background:var(--primary-light);border-radius:var(--r-badge);padding:3px 9px;
}

/* ===== 场景卡 ===== */
.scene-card{
  height:100%;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.scene-card img{width:100%;height:190px;object-fit:cover}
.scene-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.scene-body h3{margin-bottom:8px;font-size:18px}
.scene-body p{color:var(--ink-2);font-size:15px;margin-bottom:16px}
.scene-tag{
  align-self:flex-start;font-size:12.5px;font-weight:600;color:var(--primary);
  background:var(--primary-light);border-radius:var(--r-badge);padding:3px 9px;margin-bottom:12px;
}
.scene-link{margin-top:auto;font-size:14.5px;font-weight:600}

/* ===== FAQ ===== */
.faq-group{margin-bottom:clamp(34px,4vw,52px);scroll-margin-top:120px}
.faq-group:last-child{margin-bottom:0}
.faq-group>h2{
  font-size:clamp(19px,2vw,23px);
  padding-bottom:12px;margin-bottom:18px;
  border-bottom:1px solid var(--line);
  position:relative;
}
.faq-group>h2::after{content:"";position:absolute;left:0;bottom:-1px;width:52px;height:3px;border-radius:3px;background:var(--primary)}
.faq-list{display:flex;flex-direction:column;gap:10px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.faq-item:hover{border-color:#CFDEE3;box-shadow:var(--sh-1)}
.faq-item.is-open{border-color:#BCD3DA;box-shadow:var(--sh-1)}
.faq-q{margin:0;font-size:16px;font-weight:600}
.faq-toggle{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;min-height:56px;border-radius:12px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-toggle:hover{color:var(--primary)}
.faq-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:-2px}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;position:relative;border-radius:50%;
  background:var(--primary-light);transition:transform var(--dur) var(--ease);
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:opacity var(--dur) var(--ease)}
.faq-icon::before{left:6px;top:10px;width:10px;height:2px}
.faq-icon::after{left:10px;top:6px;width:2px;height:10px}
.faq-toggle[aria-expanded="true"] .faq-icon{transform:rotate(45deg)}
.faq-toggle[aria-expanded="true"]{color:var(--primary)}
.faq-a{padding:0 20px 20px;border-top:1px dashed var(--line);margin-top:-1px}
.faq-a p{margin-top:16px;font-size:15.5px;line-height:1.8;color:var(--ink-2);max-width:72ch}

/* ===== 侧栏快速联系 ===== */
.support-aside{position:sticky;top:106px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:24px 22px;
}
.side-card h3{font-size:19px;margin-bottom:6px}
.side-card .side-sub{font-size:14px;color:var(--ink-2);margin-bottom:18px}
.side-list{list-style:none;padding:0;margin:0 0 20px}
.side-list li{
  padding:12px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--ink-2);
}
.side-list li:last-child{border-bottom:0}
.side-list strong{display:block;color:var(--ink);font-size:14.5px;font-weight:600;margin-bottom:2px}
.side-tip{
  font-size:13.5px;color:var(--accent);
  background:var(--accent-light);border-radius:10px;padding:10px 12px;margin-bottom:18px;line-height:1.7;
}
.side-mini{display:flex;gap:10px;align-items:center;margin-top:14px;font-size:13.5px;color:var(--ink-3)}
.side-mini span.dot{width:8px;height:8px;border-radius:50%;background:var(--ok);flex:0 0 8px}

/* ===== CTA + 表单 ===== */
.cta-wrap{
  background:var(--primary-light);
  border:1px solid #CFE3E8;
  border-radius:20px;
  padding:clamp(28px,4vw,48px);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--ink)}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;min-height:46px;padding:11px 14px;
  background:#fff;border:1px solid #D8E2E6;border-radius:var(--r-input);
  font-size:15px;color:var(--ink);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7}
.field select{
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' fill='none' stroke='%235C7078' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:12px 8px;
  padding-right:38px;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(20,101,122,.16);
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--ink-2)}
.check-row input[type="checkbox"]{width:18px;height:18px;margin-top:2px;accent-color:var(--primary);flex:0 0 18px}
.form-note{font-size:13px;color:var(--ink-3);margin-top:12px}
.cta-head h2{margin-bottom:10px}
.cta-head p{color:var(--ink-2);font-size:15.5px}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:var(--gap-section);
  background:var(--dark);
  color:rgba(242,247,248,.78);
  border-top:3px solid var(--accent);
  padding-top:clamp(44px,5vw,64px);
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.5fr 1.5fr;gap:32px}
.site-footer h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand:hover{color:#fff;text-decoration:none}
.footer-about{font-size:14.5px;line-height:1.8;color:rgba(242,247,248,.72);max-width:34ch}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a,.footer-bottom nav a{color:rgba(242,247,248,.78);font-size:15px;transition:color var(--dur) var(--ease),transform var(--dur) var(--ease)}
.footer-links a:hover,.footer-bottom nav a:hover{color:#9FD6E2;text-decoration:none;transform:translateX(2px)}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14.5px;color:rgba(242,247,248,.72)}
.footer-bottom{
  margin-top:clamp(34px,4vw,52px);
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:rgba(242,247,248,.6);
}
.footer-bottom p{margin:0}
.footer-bottom nav{display:flex;gap:18px}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .nav-menu{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border:1px solid var(--line);border-radius:20px;
    padding:12px;box-shadow:var(--sh-2);
    max-width:calc(100vw - 32px);margin-left:auto;margin-right:auto;
  }
  .nav-menu.is-open{display:flex}
  .nav-menu>a{padding:12px 14px;font-size:15.5px}
  .nav-menu>a.is-active::after{left:14px;transform:none;bottom:6px}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .nav-menu-cta{display:block;margin-top:6px}
  .nav-menu-cta .btn{width:100%}
  .support-aside{position:static;margin-top:32px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:768px){
  .container{padding-left:20px;padding-right:20px}
  .hero-inner{padding:clamp(38px,9vw,56px) 0}
  .hero-cat h1{max-width:none}
  .hero-sub{font-size:16px}
  .grid-x>.cell{margin-bottom:18px}
  .grid-x>.cell:last-child{margin-bottom:0}
  .form-grid{grid-template-columns:minmax(0,1fr)}
  .figure-card img{height:220px}
  .scene-card img{height:170px}
  .breadcrumb{font-size:13px}
}
@media (max-width:520px){
  body{font-size:15.5px}
  .nav-pill{padding:8px 10px 8px 14px}
  .brand{font-size:15.5px}
  .brand-mark{width:26px;height:26px;flex:0 0 26px;border-radius:8px}
  .brand-mark svg{width:16px;height:16px}
  .hero-cta .btn{width:100%}
  .hero-badges{flex-direction:column;gap:10px}
  .faq-toggle{padding:14px 16px;font-size:15.5px}
  .faq-a{padding:0 16px 18px}
  .cta-wrap{border-radius:16px;padding:24px 18px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}