/* roulang page: index */
/* ================= 设计变量 ================= */
:root{
  --ink:#17356B;
  --ink-deep:#0F2549;
  --teal:#0E7C86;
  --gold:#D8A93C;
  --paper:#F8FAFD;
  --paper-alt:#EEF3F9;
  --card:#FFFFFF;
  --text:#1B2533;
  --text-2:#566374;
  --text-3:#8B96A6;
  --border:#DFE7F1;
  --line:#EAF0F7;
  --ok:#1F8A5B;
  --warn:#C2611F;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 4px rgba(23,53,107,.04),0 12px 28px rgba(23,53,107,.06);
  --sh-2:0 16px 36px rgba(23,53,107,.12);
  --sh-nav:0 2px 12px rgba(23,53,107,.06);
  --wrap:1200px;
  --sec-y:96px;
  --serif:"Noto Serif SC",Georgia,"Songti SC",serif;
}

/* ================= 基础重置 ================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.85;color:var(--text);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em;line-height:1.35}
h1{font-size:44px}
h2{font-size:32px}
h3{font-size:20px;line-height:1.5}
p{margin:0 0 14px}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--teal)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:6px}
::selection{background:rgba(216,169,60,.35)}

.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.serif{font-family:var(--serif);font-weight:700}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--ink-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{background:transparent;color:var(--ink);border-color:rgba(23,53,107,.32)}
.btn-outline:hover{background:rgba(23,53,107,.07);color:var(--ink-deep);border-color:rgba(23,53,107,.5)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--border)}
.btn-ghost:hover{border-color:rgba(23,53,107,.4);box-shadow:var(--sh-1)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-text{background:none;border:0;padding:6px 0;color:var(--ink);font-weight:600;font-size:15px;gap:6px;cursor:pointer}
.btn-text .ar{transition:transform .2s ease;display:inline-block}
.btn-text:hover{color:var(--teal)}
.btn-text:hover .ar{transform:translateX(4px)}

/* ================= 顶部导航 ================= */
.site-header{
  position:sticky;top:0;z-index:90;background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:var(--sh-nav)}
.nav-wrap{display:flex;align-items:center;gap:26px;height:72px;transition:height .25s ease}
.site-header.scrolled .nav-wrap{height:64px}

.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(150deg,var(--ink) 0%,var(--ink-deep) 100%);
  color:var(--gold);display:flex;align-items:center;justify-content:center;
  font-size:17px;box-shadow:0 4px 10px rgba(23,53,107,.22);
}
.brand-name{display:block;font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.01em;line-height:1.2}
.brand-name em{display:block;font-style:normal;font-size:11.5px;font-weight:500;color:var(--text-3);letter-spacing:.06em;margin-top:2px}

.main-nav{flex:1;display:flex;justify-content:center}
.main-nav > ul{display:flex;align-items:center;gap:2px}
.main-nav > ul > li > a{
  position:relative;display:block;padding:10px 13px;font-size:15px;font-weight:500;
  color:var(--text-2);border-radius:8px;transition:color .2s ease,background .2s ease;
}
.main-nav > ul > li > a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.main-nav > ul > li > a:hover{color:var(--ink);background:rgba(23,53,107,.045)}
.main-nav > ul > li > a:hover::after{transform:scaleX(1)}
.main-nav > ul > li > a.active{color:var(--ink);font-weight:600}
.main-nav > ul > li > a.active::after{transform:scaleX(1)}

.nav-extra{display:flex;align-items:center;gap:12px;flex-shrink:0}

/* Mega 面板 */
.mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:7px;padding:10px 16px;border-radius:var(--r-btn);
  background:var(--paper-alt);border:1px solid transparent;color:var(--ink);
  font-size:14px;font-weight:600;cursor:pointer;transition:all .2s ease;
}
.mega-trigger:hover{background:#E3EBF5;border-color:var(--border)}
.mega-trigger i{font-size:11px;transition:transform .2s ease}
.mega.open .mega-trigger i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:760px;max-width:calc(100vw - 48px);
  background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-2);
  padding:26px;display:grid;grid-template-columns:1.15fr 1fr;gap:30px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
}
.mega.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-title{font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--text-3);text-transform:uppercase;margin:0 0 12px}
.mega-list li + li{margin-top:4px}
.mega-list a{display:flex;gap:11px;padding:10px 12px;border-radius:10px;transition:background .2s ease}
.mega-list a:hover{background:var(--paper-alt)}
.mega-list .mi{
  width:30px;height:30px;flex-shrink:0;border-radius:9px;background:rgba(14,124,134,.11);
  color:var(--teal);display:flex;align-items:center;justify-content:center;font-size:13px;
}
.mega-list b{display:block;font-size:14.5px;color:var(--ink);font-weight:600;line-height:1.45}
.mega-list em{display:block;font-style:normal;font-size:12.5px;color:var(--text-3);line-height:1.5}
.mega-cards{display:grid;gap:12px}
.mega-card{
  display:flex;align-items:center;gap:12px;padding:12px;border-radius:12px;
  border:1px solid var(--border);background:#fff;transition:all .2s ease;
}
.mega-card:hover{border-color:rgba(23,53,107,.35);box-shadow:var(--sh-1);transform:translateY(-2px)}
.mega-card img{width:62px;height:46px;object-fit:cover;border-radius:8px;background:var(--paper-alt);flex-shrink:0}
.mega-card span{font-size:14px;font-weight:600;color:var(--ink);line-height:1.45}
.mega-card small{display:block;font-size:12.5px;color:var(--text-3);font-weight:400;margin-top:2px}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:11px;border:1px solid var(--border);
  background:#fff;color:var(--ink);font-size:17px;cursor:pointer;align-items:center;justify-content:center;
}
.mobile-cta{display:none}

/* ================= Hero ================= */
.hero{
  position:relative;overflow:hidden;padding:74px 0 92px;
  background:linear-gradient(180deg,#FFFFFF 0%,#F8FAFD 62%,#EEF3F9 100%);
}
.hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,124,134,.10),transparent 66%);pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(23,53,107,.16) 1.1px,transparent 1.1px);
  background-size:26px 26px;
  -webkit-mask-image:linear-gradient(105deg,transparent 42%,#000 100%);
  mask-image:linear-gradient(105deg,transparent 42%,#000 100%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:6fr 5fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--teal);background:rgba(14,124,134,.1);border-radius:999px;padding:6px 14px;margin-bottom:20px;
}
.hero h1{font-size:46px;line-height:1.24;margin-bottom:20px}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.trust-bar{display:flex;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:22px;max-width:620px}
.trust-bar li{flex:1 1 120px;padding-right:18px;margin-right:18px;border-right:1px solid var(--line)}
.trust-bar li:last-child{border-right:0;margin-right:0;padding-right:0}
.trust-bar strong{display:block;font-family:var(--serif);font-size:23px;color:var(--ink);line-height:1.3}
.trust-bar span{font-size:13px;color:var(--text-3)}

.hero-media{position:relative}
.hero-media > img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;background:var(--paper-alt);
  box-shadow:var(--sh-2);border:1px solid rgba(223,231,241,.9);
}
.hero-float{
  position:absolute;right:-14px;bottom:-20px;background:#fff;border:1px solid var(--border);
  border-radius:14px;padding:16px 20px;box-shadow:var(--sh-2);min-width:230px;
}
.hero-float .hf-label{display:block;font-size:12px;color:var(--text-3);letter-spacing:.1em}
.hero-float strong{display:block;font-family:var(--serif);font-size:24px;color:var(--ink);margin:2px 0 4px}
.hero-float em{font-style:normal;font-size:12.5px;color:var(--text-2)}

/* ================= 通用板块 ================= */
.section{padding:var(--sec-y) 0}
.section-alt{background:var(--paper-alt)}
.sec-head{max-width:760px;margin-bottom:46px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-label{display:block;font-size:13px;font-weight:600;letter-spacing:.16em;color:var(--teal);margin-bottom:12px}
.sec-title{font-size:32px;margin-bottom:14px}
.sec-desc{font-size:16.5px;color:var(--text-2);margin:0}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:46px}
.sec-head-row .sec-head{margin-bottom:0}

/* ================= 价值主张条 ================= */
.value-strip{display:grid;grid-template-columns:repeat(4,1fr)}
.value-item{padding:0 30px;border-right:1px solid var(--line)}
.value-item:first-child{padding-left:0}
.value-item:last-child{border-right:0;padding-right:0}
.v-num{
  display:inline-block;font-family:var(--serif);font-size:14px;font-weight:700;color:var(--gold);
  letter-spacing:.1em;margin-bottom:12px;
}
.value-item h3{font-size:18.5px;margin-bottom:10px}
.value-item p{font-size:14.5px;color:var(--text-2);margin:0;line-height:1.85}

/* ================= 功能分组 ================= */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(23,53,107,.2)}
.feature-card.lg{grid-column:span 2;grid-row:span 2;padding:34px}
.feature-card.wide{grid-column:span 2}
.fc-tag{
  display:inline-block;align-self:flex-start;font-size:12.5px;font-weight:600;color:var(--teal);
  background:rgba(14,124,134,.1);border-radius:999px;padding:4px 12px;margin-bottom:16px;
}
.feature-card h3{font-size:20px;margin-bottom:12px}
.feature-card.lg h3{font-size:24px}
.feature-card > p{font-size:14.5px;color:var(--text-2);margin-bottom:18px}
.fc-list{margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}
.fc-list li{position:relative;padding-left:18px;font-size:14px;color:var(--text-2);line-height:1.9}
.fc-list li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;
  background:var(--gold);
}
.feature-card.lg img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);
  background:var(--paper-alt);margin-bottom:22px;
}

/* ================= 使用场景 ================= */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:60px}
.scene-card{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.scene-card img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--paper-alt)}
.scene-body{padding:24px 26px 28px}
.scene-body h3{font-size:19px;margin-bottom:10px}
.scene-body p{font-size:14.5px;color:var(--text-2);margin:0}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--border);padding-top:34px}
.step{padding:0 26px;border-right:1px solid var(--line)}
.step:last-child{border-right:0;padding-right:0}
.step:first-child{padding-left:0}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;
  background:rgba(216,169,60,.16);color:#9B7518;font-family:var(--serif);font-weight:700;font-size:14px;
  margin-bottom:14px;
}
.step h4{font-size:16.5px;color:var(--ink);margin:0 0 8px}
.step p{font-size:14px;color:var(--text-2);margin:0}

/* ================= 案例 ================= */
.case-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.case-main{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);display:grid;grid-template-columns:1fr 1fr;
}
.case-main > img{width:100%;height:100%;min-height:320px;object-fit:cover;background:var(--paper-alt)}
.case-main-body{padding:32px 30px;display:flex;flex-direction:column;justify-content:center}
.case-main-body h3{font-size:21px;margin:14px 0 12px}
.case-main-body p{font-size:14.5px;color:var(--text-2)}
.case-quote{
  margin-top:18px;padding-left:16px;border-left:3px solid var(--gold);
  font-size:14.5px;color:var(--text-2);line-height:1.85;
}
.case-quote span{display:block;font-size:13px;color:var(--text-3);margin-top:6px}
.case-side{display:grid;gap:24px}
.case-small{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px 26px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
}
.case-small:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.case-small h4{font-size:16.5px;color:var(--ink);margin:0 0 8px}
.case-small p{font-size:14px;color:var(--text-2);margin:0 0 14px}
.metric{display:flex;gap:26px;padding-top:14px;border-top:1px solid var(--line)}
.metric div strong{display:block;font-family:var(--serif);font-size:22px;color:var(--teal);line-height:1.3}
.metric div span{font-size:12.5px;color:var(--text-3)}

/* ================= 价格 ================= */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:32px 28px;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.price-card.featured{
  border:2px solid var(--ink);transform:scale(1.025);box-shadow:var(--sh-2);z-index:2;
}
.price-card.featured:hover{transform:scale(1.025) translateY(-4px)}
.price-flag{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--gold);color:#3A2A05;font-size:12.5px;font-weight:700;
  padding:5px 16px;border-radius:999px;letter-spacing:.04em;white-space:nowrap;
}
.price-name{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:6px}
.price-note{font-size:13.5px;color:var(--text-3);margin-bottom:20px}
.price-amount{font-family:var(--serif);font-size:36px;color:var(--ink);line-height:1.15}
.price-amount small{font-family:inherit;font-size:15px;color:var(--text-3);font-weight:400;margin-left:4px}
.price-list{margin:22px 0 26px;padding-top:20px;border-top:1px solid var(--line);flex:1}
.price-list li{position:relative;padding-left:22px;font-size:14.5px;color:var(--text-2);line-height:1.9}
.price-list li::before{
  content:"✓";position:absolute;left:0;top:0;color:var(--teal);font-size:13px;font-weight:700;
}
.price-card .btn{width:100%}

.table-wrap{margin-top:46px;overflow-x:auto;border:1px solid var(--border);border-radius:var(--r-card);background:#fff}
.table-wrap table{width:100%;border-collapse:collapse;min-width:720px}
.table-wrap th,.table-wrap td{padding:15px 22px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
.table-wrap th{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--text-3);background:var(--paper);text-transform:uppercase}
.table-wrap td:first-child{font-weight:600;color:var(--ink)}
.table-wrap tr:last-child td{border-bottom:0}
.table-wrap td{color:var(--text-2)}
.scroll-hint{display:none;font-size:12.5px;color:var(--text-3);margin-top:10px;text-align:right}

/* ================= 最新信息（CMS） ================= */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(23,53,107,.2)}
.news-link{display:flex;flex-direction:column;width:100%}
.news-thumb{background:var(--paper-alt);aspect-ratio:16/9;overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.news-body h3{
  font-size:17px;line-height:1.55;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14px;color:var(--text-2);margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);
}
.news-foot .ar{color:var(--teal);font-weight:700;transition:transform .2s ease}
.news-card:hover .news-foot .ar{transform:translateX(4px)}

.badge{
  display:inline-block;font-size:12.5px;font-weight:600;border-radius:999px;padding:4px 12px;
  background:rgba(14,124,134,.11);color:var(--teal);line-height:1.5;
}
.badge-ink{background:rgba(23,53,107,.09);color:var(--ink)}
.badge-gold{background:rgba(216,169,60,.18);color:#8E6C15}

.empty-state{
  grid-column:1/-1;text-align:center;padding:60px 24px;background:#fff;
  border:1px dashed var(--border);border-radius:var(--r-card);color:var(--text-3);font-size:15px;
}
.empty-state i{display:block;font-size:26px;color:var(--border);margin-bottom:12px}

/* ================= FAQ ================= */
.faq-wrap{max-width:880px;margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.acc-item + .acc-item{border-top:1px solid var(--line)}
.acc-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--ink);transition:color .2s ease,background .2s ease;
  position:relative;
}
.acc-head::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--ink);
  transform:scaleY(0);transform-origin:center;transition:transform .22s ease;
}
.acc-item.open .acc-head{color:var(--ink)}
.acc-item.open .acc-head::before{transform:scaleY(1)}
.acc-head:hover{background:rgba(238,243,249,.6)}
.acc-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;background:var(--paper-alt);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-size:13px;
  transition:transform .22s ease,background .22s ease,color .22s ease;
}
.acc-item.open .acc-icon{transform:rotate(45deg);background:var(--ink);color:#fff}
.acc-body{max-height:0;overflow:hidden;transition:max-height .3s ease}
.acc-body-inner{padding:0 26px 24px;font-size:15px;color:var(--text-2);line-height:1.85}

/* ================= CTA ================= */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink-deep);border-radius:0;
  padding:76px 0;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.6;
  background-image:radial-gradient(rgba(216,169,60,.55) 1px,transparent 1px);
  background-size:34px 34px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%);
}
.cta-band .container{position:relative;z-index:2}
.cta-band h2{color:#fff;font-size:31px;margin-bottom:14px}
.cta-band p{color:#C8D5E8;font-size:16px;max-width:660px;margin:0 auto 28px}
.cta-band .btn-primary{background:var(--gold);color:#2C1F02}
.cta-band .btn-primary:hover{background:#E4B94F;color:#2C1F02}

/* ================= 页脚 ================= */
.site-footer{background:var(--ink-deep);color:#C8D5E8;padding:66px 0 0;position:relative}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background-image:radial-gradient(rgba(216,169,60,.7) 1px,transparent 1px);
  background-size:18px 1px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.25fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);color:var(--gold);box-shadow:none}
.footer-brand span{font-size:18px;font-weight:700;color:#fff;letter-spacing:-.01em}
.footer-desc{font-size:14px;color:#9FB2CD;line-height:1.85;margin:0 0 18px;max-width:330px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tags span{
  font-size:12.5px;color:#C8D5E8;background:rgba(255,255,255,.07);
  border-radius:999px;padding:4px 12px;
}
.footer-col h4{font-size:14.5px;color:#fff;margin:0 0 18px;letter-spacing:.03em}
.footer-col li + li{margin-top:11px}
.footer-col a{font-size:14px;color:#C8D5E8;border-bottom:2px solid transparent;padding-bottom:1px;transition:all .2s ease}
.footer-col a:hover{color:#fff;border-bottom-color:var(--gold)}
.footer-contact li{font-size:14px;color:#C8D5E8;line-height:1.8}
.footer-contact li strong{color:#fff;font-weight:600;margin-right:6px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:12.5px;color:#8B9DB8;
}
.footer-bottom span{line-height:1.7}

/* ================= 响应式 ================= */
@media (max-width:1100px){
  .mega-panel{width:640px}
  .hero h1{font-size:40px}
  h1{font-size:38px}
}
@media (max-width:1023px){
  :root{--sec-y:78px}
  .main-nav{
    position:fixed;top:0;left:0;right:0;bottom:0;background:#fff;z-index:120;
    display:flex;flex-direction:column;justify-content:flex-start;
    padding:88px 24px 40px;overflow-y:auto;
    transform:translateX(100%);transition:transform .3s ease;box-shadow:-8px 0 40px rgba(15,37,73,.12);
  }
  .main-nav.open{transform:translateX(0)}
  .main-nav > ul{flex-direction:column;align-items:stretch;gap:2px;width:100%}
  .main-nav > ul > li > a{padding:14px 4px;font-size:16px;border-bottom:1px solid var(--line);border-radius:0}
  .main-nav > ul > li > a::after{display:none}
  .main-nav > ul > li > a.active{color:var(--ink)}
  .mobile-cta{display:block;margin-top:26px}
  .mobile-cta .btn{width:100%}
  .nav-toggle{display:flex;margin-left:auto}
  .nav-extra{display:none}
  .nav-close{
    position:fixed;top:16px;right:20px;width:44px;height:44px;border-radius:11px;
    border:1px solid var(--border);background:#fff;color:var(--ink);font-size:17px;cursor:pointer;
    display:none;align-items:center;justify-content:center;z-index:130;
  }
  .main-nav.open ~ .nav-close,.nav-close.show{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-media{max-width:620px}
  .hero-float{right:12px;bottom:-18px}
  .case-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:900px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .feature-card.lg{grid-column:span 2;grid-row:auto}
  .feature-card.wide{grid-column:span 2}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .price-card.featured{transform:none}
  .price-card.featured:hover{transform:translateY(-4px)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .step:nth-child(2){border-right:0;padding-right:0}
  .step{padding-left:0}
  .value-strip{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .value-item:nth-child(2){border-right:0;padding-right:0}
  .value-item{padding-left:0}
  .value-item:nth-child(odd){padding-right:30px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  h1{font-size:30px}
  h2,.sec-title{font-size:25px}
  .hero{padding:52px 0 70px}
  .hero h1{font-size:31px}
  .hero-sub{font-size:15.5px}
  .trust-bar li{flex:1 1 45%;border-right:0;margin-right:0;padding-right:0;margin-bottom:18px}
  .scene-grid{grid-template-columns:1fr}
  .case-main{grid-template-columns:1fr}
  .case-main > img{min-height:220px;aspect-ratio:4/3}
  .sec-head-row{flex-direction:column;align-items:flex-start;gap:14px}
  .scroll-hint{display:block}
}
@media (max-width:560px){
  :root{--sec-y:56px}
  .feature-grid{grid-template-columns:1fr}
  .feature-card.lg,.feature-card.wide{grid-column:span 1}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .hero-float{position:static;margin-top:16px;right:auto;bottom:auto;min-width:0}
  .value-strip{grid-template-columns:1fr;gap:0}
  .value-item{border-right:0;border-bottom:1px solid var(--line);padding:22px 0}
  .value-item:last-child{border-bottom:0}
  .steps{grid-template-columns:1fr}
  .step{border-right:0;padding:0}
  .btn{width:100%}
  .hero-actions{flex-direction:column}
  .case-side{gap:16px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --ink:#17356B;
  --ink-deep:#0F2549;
  --teal:#0E7C86;
  --gold:#D8A93C;
  --bg:#F8FAFD;
  --bg-alt:#EEF3F9;
  --card:#FFFFFF;
  --t1:#1B2533;
  --t2:#566374;
  --t3:#8B96A6;
  --line:#DFE7F1;
  --line-soft:#EAF0F7;
  --ok:#1F8A5B;
  --warn:#C2611F;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh1:0 2px 4px rgba(23,53,107,.04), 0 12px 28px rgba(23,53,107,.06);
  --sh2:0 16px 36px rgba(23,53,107,.12);
  --sh-nav:0 2px 12px rgba(23,53,107,.06);
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --serif:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg);
  letter-spacing:0;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--ink);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--teal);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--gold);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);letter-spacing:-0.01em;margin:0;}
h1{font-size:44px;line-height:1.25;}
h2{font-size:32px;line-height:1.3;}
h3{font-size:21px;line-height:1.45;}
h4{font-size:17px;line-height:1.5;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-alt{background:var(--bg-alt);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--sans);font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--teal);background:rgba(14,124,134,.12);
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head p{color:var(--t2);font-size:16.5px;margin:14px 0 0;}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;max-width:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .2s ease;text-align:center;
}
.btn-primary{background:var(--ink);color:#fff;box-shadow:var(--sh1);}
.btn-primary:hover{background:var(--ink-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh1);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:rgba(23,53,107,.08);color:var(--ink);}
.btn-teal{background:var(--teal);color:#fff;}
.btn-teal:hover{background:#0B646C;color:#fff;transform:translateY(-1px);box-shadow:var(--sh2);}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--ink);background:none;border:none;padding:0;height:auto;cursor:pointer;}
.btn-text i{transition:transform .2s ease;}
.btn-text:hover{color:var(--teal);}
.btn-text:hover i{transform:translateX(4px);}
.btn-sm{height:42px;padding:0 20px;font-size:15px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line-soft);transition:all .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-nav);}
.nav-wrap{display:flex;align-items:center;height:72px;gap:28px;transition:height .22s ease;}
.site-header.is-scrolled .nav-wrap{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{color:var(--gold);font-size:20px;line-height:1;}
.brand-name{
  font-family:var(--serif);font-size:20px;font-weight:700;color:var(--ink);
  letter-spacing:-0.01em;display:flex;align-items:baseline;gap:8px;
}
.brand-name em{font-style:normal;font-family:var(--sans);font-size:12px;font-weight:500;color:var(--t3);letter-spacing:.02em;}
.main-nav{flex:1;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{
  display:block;padding:0 12px;height:72px;line-height:72px;
  font-size:15px;font-weight:500;color:var(--t2);position:relative;
  transition:color .18s ease,height .22s ease,line-height .22s ease;
}
.site-header.is-scrolled .main-nav a{height:64px;line-height:64px;}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:14px;height:2px;
  background:var(--ink);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1);}
.main-nav a.active{color:var(--ink);font-weight:600;}
.nav-extra{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.nav-cta{height:44px;padding:0 20px;font-size:15px;}

.mega{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 16px;
  background:rgba(23,53,107,.06);border:1px solid transparent;border-radius:var(--r-btn);
  color:var(--ink);font-size:15px;font-weight:600;cursor:pointer;transition:all .18s ease;
}
.mega-trigger:hover{background:rgba(23,53,107,.1);}
.mega-trigger i{font-size:12px;transition:transform .2s ease;}
.mega.is-open .mega-trigger i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:780px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--sh2);padding:26px;display:grid;grid-template-columns:1.15fr .95fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(6px);transition:all .2s ease;z-index:80;
}
.mega:hover .mega-panel,.mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-title{font-size:13px;font-weight:700;color:var(--t3);letter-spacing:.06em;margin:0 0 14px;}
.mega-list li+li{margin-top:6px;}
.mega-list a{display:flex;gap:12px;padding:10px 12px;border-radius:10px;align-items:flex-start;transition:background .18s ease;}
.mega-list a:hover{background:var(--bg-alt);}
.mi{
  width:34px;height:34px;border-radius:9px;background:rgba(14,124,134,.12);
  color:var(--teal);display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;
}
.mega-list b{display:block;font-size:15px;font-weight:600;color:var(--t1);line-height:1.4;}
.mega-list em{display:block;font-style:normal;font-size:13px;color:var(--t3);line-height:1.5;margin-top:2px;}
.mega-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px;}
.mega-card{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;transition:all .2s ease;}
.mega-card:hover{transform:translateY(-3px);box-shadow:var(--sh1);border-color:rgba(23,53,107,.2);}
.mega-card img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0;background:var(--bg-alt);}
.mega-card span{display:block;padding:10px 12px;font-size:13.5px;font-weight:600;color:var(--t1);}
.mega-news li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px;}
.mega-news li:last-child{border-bottom:none;}
.mega-news a{color:var(--t2);}
.mega-news a:hover{color:var(--ink);}
.mega-news span{color:var(--t3);font-size:12.5px;flex-shrink:0;}

.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--ink);font-size:17px;cursor:pointer;
}
.nav-close{display:none;}
.mobile-cta{display:none;}

@media (max-width:1023px){
  .main-nav{
    position:fixed;inset:0;background:#fff;z-index:90;
    padding:88px 24px 32px;overflow-y:auto;
    transform:translateX(100%);transition:transform .26s ease;
  }
  body.nav-open .main-nav{transform:translateX(0);}
  .main-nav ul{display:block;}
  .main-nav a{height:auto;line-height:1.5;padding:16px 4px;font-size:17px;border-bottom:1px solid var(--line-soft);}
  .main-nav a::after{display:none;}
  .main-nav a.active{color:var(--teal);}
  .mobile-cta{display:block;margin-top:24px;}
  .mobile-cta .btn{width:100%;}
  .nav-close{
    display:none;position:fixed;top:20px;right:20px;z-index:95;
    width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);
    background:#fff;color:var(--ink);font-size:18px;cursor:pointer;
  }
  body.nav-open .nav-close{display:block;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .mega{display:none;}
  .nav-cta{display:none;}
  .brand-name em{display:none;}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:72px 0 84px;
  background:
    radial-gradient(circle at 88% 18%, rgba(216,169,60,.5) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 72% 58%, rgba(23,53,107,.35) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 94% 72%, rgba(14,124,134,.35) 0 1.5px, transparent 1.6px),
    linear-gradient(180deg,#FBFCFE 0%,var(--bg) 100%);
  background-size:220px 220px,300px 300px,260px 260px,100% 100%;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero h1{font-size:46px;margin-bottom:20px;}
.hero h1 small{display:block;font-family:var(--sans);font-size:15px;font-weight:600;color:var(--teal);letter-spacing:.06em;margin-bottom:14px;text-transform:none;}
.hero-lead{font-size:17px;color:var(--t2);max-width:600px;margin-bottom:28px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px;}
.trust{display:flex;flex-wrap:wrap;gap:0;padding-top:24px;border-top:1px solid var(--line);}
.trust div{padding-right:26px;margin-right:26px;border-right:1px solid var(--line);}
.trust div:last-child{border-right:none;margin-right:0;padding-right:0;}
.trust strong{display:block;font-family:var(--serif);font-size:24px;color:var(--ink);line-height:1.2;}
.trust span{font-size:13px;color:var(--t3);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;
  background:var(--bg-alt);box-shadow:var(--sh1);
}
.hero-badge{
  position:absolute;right:-8px;bottom:-18px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:16px 20px;box-shadow:var(--sh2);min-width:190px;
}
.hero-badge b{display:block;font-family:var(--serif);font-size:26px;color:var(--ink);line-height:1.1;}
.hero-badge span{font-size:13px;color:var(--t2);}

/* ---------- 时间线 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:12px;}
.step{position:relative;padding:0 22px 0 0;}
.step::before{
  content:"";position:absolute;top:19px;left:34px;right:-8px;height:2px;background:var(--line);
}
.step:last-child::before{display:none;}
.step-dot{
  position:relative;z-index:1;width:38px;height:38px;border-radius:50%;
  background:#fff;border:2px solid var(--ink);color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:16px;font-weight:700;margin-bottom:20px;
}
.step h3{font-size:19px;margin-bottom:8px;}
.step p{font-size:15px;color:var(--t2);margin:0;}
.step span.tagline{display:inline-block;font-size:13px;color:var(--gold);font-weight:600;margin-top:12px;}

/* ---------- 对照表 ---------- */
.table-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
table.cmp{width:100%;border-collapse:collapse;min-width:640px;}
table.cmp th,table.cmp td{padding:18px 24px;text-align:left;font-size:15.5px;border-bottom:1px solid var(--line-soft);}
table.cmp thead th{
  background:var(--ink-deep);color:#fff;font-family:var(--serif);font-size:16px;font-weight:700;
  border-bottom:none;
}
table.cmp thead th:first-child{background:#0B1D3A;}
table.cmp tbody tr:nth-child(even){background:#FBFCFE;}
table.cmp tbody tr:hover{background:rgba(14,124,134,.06);}
table.cmp td:first-child{font-weight:600;color:var(--ink);}
table.cmp tbody tr:last-child td{border-bottom:none;}
.cell-yes{color:var(--ok);font-weight:600;}
.cell-no{color:var(--t3);}
.scroll-hint{display:none;font-size:13px;color:var(--t3);text-align:center;padding:12px 0 0;}

/* ---------- 工具截图 ---------- */
.tool-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:56px;align-items:center;}
.tool-shot{position:relative;}
.tool-shot img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px;
  border:1px solid var(--line);box-shadow:var(--sh1);background:var(--bg-alt);
}
.shot-bar{
  position:absolute;left:0;right:0;bottom:0;padding:16px 20px;border-radius:0 0 16px 16px;
  background:linear-gradient(180deg,rgba(15,37,73,0) 0%,rgba(15,37,73,.86) 100%);
  color:#fff;
}
.shot-bar strong{display:block;font-size:15px;font-weight:600;}
.shot-bar span{font-size:13px;color:#C8D5E8;}
.kv{display:grid;grid-template-columns:1fr 1fr;gap:0;border-top:1px solid var(--line);margin-top:26px;}
.kv div{padding:14px 0;border-bottom:1px solid var(--line-soft);}
.kv dt{font-size:13px;color:var(--t3);margin:0;}
.kv dd{margin:2px 0 0;font-size:15.5px;font-weight:600;color:var(--t1);}
.check-list li{display:flex;gap:12px;padding:10px 0;font-size:15.5px;color:var(--t2);}
.check-list i{color:var(--teal);margin-top:6px;font-size:14px;}

/* ---------- 场景卡 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);overflow:hidden;transition:all .2s ease;display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);border-color:rgba(23,53,107,.2);box-shadow:var(--sh2);}
.card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;background:var(--bg-alt);}
.card-body{padding:24px 26px 28px;}
.badge{
  display:inline-block;font-size:13px;font-weight:600;padding:5px 13px;border-radius:999px;
  background:rgba(14,124,134,.12);color:var(--teal);margin-bottom:14px;
}
.card h3{font-size:20px;margin-bottom:10px;}
.card p{font-size:15.5px;color:var(--t2);margin:0 0 14px;}
.card ul li{font-size:15px;color:var(--t2);padding-left:18px;position:relative;margin-bottom:6px;}
.card ul li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--gold);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion{background:transparent;border:none;margin:0;}
.accordion .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);margin-bottom:14px;overflow:hidden;
}
.accordion .accordion-title{
  display:block;position:relative;border:none;background:#fff;
  padding:22px 60px 22px 30px;font-size:17px;font-weight:600;color:var(--t1);
  font-family:var(--sans);line-height:1.6;transition:color .2s ease,background .2s ease;
}
.accordion .accordion-title::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:transparent;transition:background .2s ease;
}
.accordion .accordion-title::after{
  content:"";position:absolute;right:28px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--t3);border-bottom:2px solid var(--t3);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s ease,border-color .2s ease;
}
.accordion .accordion-title:hover{color:var(--ink);}
.accordion .accordion-item.is-active .accordion-title{color:var(--ink);background:#FBFCFE;}
.accordion .accordion-item.is-active .accordion-title::before{background:var(--ink);}
.accordion .accordion-item.is-active .accordion-title::after{
  transform:translateY(-30%) rotate(-135deg);border-color:var(--ink);
}
.accordion .accordion-content{
  border:none;border-top:1px solid var(--line-soft);background:#fff;
  padding:20px 30px 24px;font-size:15.5px;line-height:1.85;color:var(--t2);
}
.accordion .accordion-content p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta{
  position:relative;overflow:hidden;background:var(--ink-deep);color:#fff;
  padding:76px 0;text-align:center;
  background-image:
    radial-gradient(circle at 12% 26%, rgba(216,169,60,.55) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 78% 70%, rgba(255,255,255,.4) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 46% 16%, rgba(255,255,255,.32) 0 1.5px, transparent 1.6px);
  background-size:240px 240px,300px 300px,200px 200px;
}
.cta h2{color:#fff;font-size:32px;margin-bottom:14px;}
.cta p{color:#C8D5E8;max-width:660px;margin:0 auto 30px;font-size:16.5px;}
.cta .btn-primary{background:var(--gold);color:#231A03;}
.cta .btn-primary:hover{background:#C79A2F;color:#231A03;}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}
.cta .btn-ghost{border-color:rgba(255,255,255,.55);color:#fff;}
.cta .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- 面包屑 ---------- */
.crumb{padding:18px 0 0;font-size:14px;color:var(--t3);}
.crumb a{color:var(--t2);}
.crumb a:hover{color:var(--ink);}
.crumb span.sep{margin:0 8px;color:var(--line);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-deep);color:#C8D5E8;padding:70px 0 0;
  border-top:1px solid rgba(216,169,60,.35);position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background-image:radial-gradient(circle, rgba(216,169,60,.9) 0 1px, transparent 1.4px);
  background-size:22px 1px;opacity:.5;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-size:20px;color:#fff;margin-bottom:16px;}
.footer-desc{font-size:14.5px;line-height:1.85;color:#A9BAD4;margin-bottom:18px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{font-size:12.5px;padding:4px 12px;border-radius:999px;background:rgba(255,255,255,.08);color:#C8D5E8;}
.footer-col h4{color:#fff;font-size:15px;font-family:var(--sans);font-weight:700;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:12px;font-size:14.5px;}
.footer-col a{color:#C8D5E8;border-bottom:2px solid transparent;padding-bottom:2px;transition:all .18s ease;}
.footer-col a:hover{color:#fff;border-bottom-color:var(--gold);}
.footer-contact li{display:flex;gap:10px;font-size:14.5px;color:#A9BAD4;}
.footer-contact strong{color:#fff;font-weight:600;min-width:74px;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 26px;border-top:1px solid rgba(255,255,255,.1);
  font-size:12px;color:#8FA2C0;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:80px 0;}
  h1{font-size:34px;}
  .hero h1{font-size:36px;}
  h2{font-size:27px;}
  .hero{padding:48px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-badge{right:12px;bottom:-14px;}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 20px;}
  .step::before{display:none;}
  .tool-grid{grid-template-columns:1fr;gap:36px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .mega-panel{display:none;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .hero h1{font-size:29px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .hero-actions .btn{width:100%;}
  .trust div{padding-right:18px;margin-right:18px;}
  .trust strong{font-size:20px;}
  .steps{grid-template-columns:1fr;}
  .grid-3{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .card img,.hero-visual img{aspect-ratio:4/3;}
  .table-scroll{border-radius:0;}
  .scroll-hint{display:block;}
  .cta{padding:56px 0;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{font-size:12px;}
}

/* roulang page: article */
/* ============ 设计变量 ============ */
:root{
  --ink:#17356B;
  --ink-deep:#0F2549;
  --teal:#0E7C86;
  --gold:#D8A93C;
  --paper:#F8FAFD;
  --band:#EEF3F9;
  --card:#FFFFFF;
  --text:#1B2533;
  --muted:#566374;
  --weak:#8B96A6;
  --line:#DFE7F1;
  --line-soft:#EAF0F7;
  --ok:#1F8A5B;
  --warn:#C2611F;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 4px rgba(23,53,107,.04), 0 12px 28px rgba(23,53,107,.06);
  --sh-2:0 16px 36px rgba(23,53,107,.12);
  --sh-nav:0 2px 12px rgba(23,53,107,.06);
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
  --serif:"Noto Serif SC",Georgia,"Songti SC",serif;
}
/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--text);
  font-family:var(--sans);font-size:16.5px;line-height:1.8;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body.nav-open{overflow:hidden}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--ink);font-weight:700;line-height:1.32;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;border:0}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--teal)}
button{font-family:inherit;font-size:inherit;cursor:pointer}
time{font-style:normal}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1440px){.container{max-width:1240px}}
/* Foundation 覆盖 */
.button,.button:focus{border-radius:var(--r-btn);font-family:var(--sans)}
input,select,textarea{border-radius:var(--r-btn);font-family:var(--sans)}
a.button{text-decoration:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;text-decoration:none;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--ink-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(15,37,73,.22)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink);border-color:rgba(23,53,107,.32)}
.btn-ghost:hover{background:rgba(23,53,107,.08);border-color:var(--ink);color:var(--ink)}
.btn-light{background:#fff;color:var(--ink-deep)}
.btn-light:hover{background:#EAF0F7;color:var(--ink-deep);transform:translateY(-1px)}
.btn-text{display:inline-flex;align-items:center;gap:8px;height:auto;padding:0;border:0;background:none;color:var(--ink);font-weight:600;font-size:15px}
.btn-text i{transition:transform .2s ease}
.btn-text:hover{color:var(--teal)}
.btn-text:hover i{transform:translateX(4px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line-soft);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-nav)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px}
.site-header.is-scrolled .nav-wrap{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{color:var(--gold);font-size:20px;line-height:1}
.brand-name{display:flex;flex-direction:column;font-size:19px;font-weight:700;color:var(--ink);letter-spacing:-.01em;line-height:1.15}
.brand-name em{font-style:normal;font-size:12px;font-weight:500;color:var(--weak);letter-spacing:.04em}
.main-nav{margin-left:8px}
.main-nav ul{display:flex;align-items:center;gap:2px}
.main-nav ul li a{
  position:relative;display:inline-flex;align-items:center;height:72px;
  padding:0 13px;font-size:15px;font-weight:500;color:var(--text);
}
.site-header.is-scrolled .main-nav ul li a{height:64px}
.main-nav ul li a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:18px;height:2px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.main-nav ul li a:hover{color:var(--ink)}
.main-nav ul li a:hover::after,.main-nav ul li a.active::after{transform:scaleX(1)}
.main-nav ul li a.active{color:var(--ink);font-weight:600}
.nav-extra{display:flex;align-items:center;gap:12px;margin-left:auto;position:relative}
.mobile-cta,.nav-close,.nav-toggle{display:none}
.nav-toggle{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--ink);font-size:17px;
  align-items:center;justify-content:center;
}

/* Mega 面板 */
.mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 16px;
  border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;
  color:var(--ink);font-size:14.5px;font-weight:600;transition:border-color .2s ease,background .2s ease;
}
.mega-trigger i{font-size:12px;color:var(--weak);transition:transform .2s ease}
.mega-trigger:hover{border-color:rgba(23,53,107,.4);background:rgba(23,53,107,.03)}
.mega.is-open .mega-trigger i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:780px;padding:26px;
  background:#fff;border:1px solid var(--line-soft);border-radius:16px;box-shadow:var(--sh-2);
  display:grid;grid-template-columns:1.15fr 1fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
}
.mega:hover .mega-panel,.mega.is-open .mega-panel,.mega-panel:hover{opacity:1;visibility:visible;transform:translateY(0)}
.mega::after{content:"";position:absolute;left:0;right:0;top:100%;height:14px}
.mega-title{font-size:13px;font-weight:600;color:var(--weak);letter-spacing:.06em;margin-bottom:12px}
.mega-list li + li{margin-top:6px}
.mega-list a{display:flex;gap:12px;padding:10px 12px;border-radius:12px;transition:background .2s ease}
.mega-list a:hover{background:var(--band)}
.mega-list .mi{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;background:rgba(14,124,134,.1);
  color:var(--teal);display:inline-flex;align-items:center;justify-content:center;font-size:14px;
}
.mega-list b{display:block;font-size:14.5px;color:var(--ink)}
.mega-list em{display:block;font-style:normal;font-size:12.5px;color:var(--weak);line-height:1.6}
.mega-entries{display:grid;gap:12px}
.mega-entry{display:flex;gap:12px;align-items:center;padding:10px;border:1px solid var(--line-soft);border-radius:12px;transition:border-color .2s ease,box-shadow .2s ease}
.mega-entry:hover{border-color:rgba(23,53,107,.22);box-shadow:var(--sh-1)}
.mega-entry img{width:74px;height:52px;object-fit:cover;border-radius:8px;background:var(--band)}
.mega-entry span{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.5}
.mega-entry em{font-style:normal;font-size:12px;color:var(--weak)}
.mega-news li{border-top:1px solid var(--line-soft)}
.mega-news li:first-child{border-top:0}
.mega-news a{display:flex;justify-content:space-between;gap:12px;padding:9px 0;font-size:13.5px;color:var(--muted)}
.mega-news a:hover{color:var(--teal)}
.mega-news em{font-style:normal;color:var(--weak);font-size:12px;flex:0 0 auto}

/* ============ 面包屑 ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line-soft)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13.5px;color:var(--weak)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--ink)}
.crumb i{font-size:10px;color:#C3CDDA}
.crumb .current{color:var(--ink);font-weight:600;max-width:44ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头部 ============ */
.article-hero{padding:44px 0 0;background:#fff;border-bottom:1px solid var(--line-soft)}
.article-hero h1{font-size:40px;line-height:1.34;max-width:900px}
.article-hero .lead{
  margin-top:16px;max-width:820px;font-size:17px;line-height:1.85;color:var(--muted);
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin:22px 0 26px;font-size:14px;color:var(--weak)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#CBD5E2}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  background:rgba(14,124,134,.12);color:var(--teal);font-size:13px;font-weight:600;
}
.badge-gold{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;background:rgba(216,169,60,.16);color:#8A6A15;font-size:13px;font-weight:600}
.article-cover{padding:0 0 0}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:16px;background:var(--band);box-shadow:var(--sh-1)}
.article-hero .container{padding-bottom:36px}

/* ============ 主体两栏 ============ */
.article-main{padding:52px 0 96px}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start}

/* 正文 */
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--text);overflow-wrap:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  font-size:29px;margin:48px 0 16px;padding-left:14px;border-left:4px solid var(--ink);line-height:1.4;
}
.article-body h3{font-size:21px;margin:32px 0 12px;color:var(--ink)}
.article-body h4{font-size:18px;margin:24px 0 10px;color:var(--ink)}
.article-body a{color:var(--ink);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--teal)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;line-height:1.85}
.article-body ul li{list-style:disc}
.article-body ol li{list-style:decimal}
.article-body li{margin-bottom:8px}
.article-body li::marker{color:var(--teal)}
.article-body blockquote{
  margin:26px 0;padding:20px 24px;background:#F1F6FB;border-left:4px solid var(--ink);
  border-radius:0 12px 12px 0;color:var(--muted);font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:24px 0;background:var(--band)}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--weak);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.article-body th{background:var(--band);color:var(--ink);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line-soft);margin:40px 0}
.article-body strong{color:var(--ink-deep)}

/* 空态 */
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
  padding:64px 24px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state i{font-size:34px;color:var(--weak)}
.empty-state h2{font-size:22px;margin:18px 0 8px}
.empty-state p{color:var(--muted);margin-bottom:22px}

/* 标签与操作 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:44px;padding-top:24px;border-top:1px solid var(--line-soft)}
.tag-row .label{font-size:13px;color:var(--weak);letter-spacing:.05em}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  background:var(--band);color:var(--muted);font-size:13px;transition:background .2s ease,color .2s ease;
}
.tag:hover{background:rgba(23,53,107,.1);color:var(--ink)}
.back-row{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px}

/* 上下栏目卡 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:52px}
.post-nav a{
  display:block;padding:20px 24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-nav a:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(23,53,107,.2);color:var(--ink)}
.post-nav em{display:block;font-style:normal;font-size:13px;color:var(--weak);margin-bottom:6px}
.post-nav b{display:block;font-size:16px;color:var(--ink);line-height:1.5}
.post-nav .arrow{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:13.5px;color:var(--teal);font-weight:600}
.post-nav .next{text-align:right}

/* 栏目推荐卡 */
.related-section{padding:0 0 96px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head h2{font-size:30px}
.section-head p{margin-top:8px;color:var(--muted);font-size:15px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(23,53,107,.2)}
.card .thumb{aspect-ratio:16/9;background:var(--band);overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:18px;line-height:1.5}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.75}
.card-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:13px;color:var(--weak)}
.card-meta i{transition:transform .2s ease}
.card:hover .card-meta i{transform:translateX(4px)}

/* 侧栏 */
.sidebar{position:sticky;top:96px;display:grid;gap:20px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.side-card h3{font-size:16px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line-soft)}
.side-list li + li{border-top:1px solid var(--line-soft)}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;font-size:14.5px;color:var(--muted)}
.side-list a:hover{color:var(--ink)}
.side-list i{font-size:11px;color:#C3CDDA;transition:transform .2s ease,color .2s ease}
.side-list a:hover i{transform:translateX(3px);color:var(--teal)}
.side-cta{background:var(--ink-deep);color:#DCE6F5;border:0;position:relative;overflow:hidden}
.side-cta .stars{position:absolute;inset:0;background-image:radial-gradient(rgba(216,169,60,.6) 1px,transparent 1px);background-size:20px 20px;opacity:.16;pointer-events:none}
.side-cta h3{color:#fff;border-bottom:1px solid rgba(255,255,255,.16);position:relative}
.side-cta p{position:relative;font-size:14px;line-height:1.8;color:#C8D5E8;margin-bottom:18px}
.side-cta .btn{position:relative;width:100%}
.side-facts li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;font-size:13.5px;color:var(--muted)}
.side-facts li + li{border-top:1px solid var(--line-soft)}
.side-facts b{color:var(--ink);font-weight:600}

/* ============ 底部 CTA ============ */
.cta-band{position:relative;background:var(--ink-deep);color:#DCE6F5;overflow:hidden}
.cta-band .stars{position:absolute;inset:0;background-image:radial-gradient(rgba(216,169,60,.55) 1px,transparent 1px);background-size:22px 22px;opacity:.14;pointer-events:none}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:36px;padding:64px 0}
.cta-inner h2{color:#fff;font-size:30px;max-width:22ch}
.cta-inner p{margin-top:12px;color:#C8D5E8;font-size:15.5px;max-width:56ch}
.cta-actions{flex:0 0 auto}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:#C8D5E8;padding:72px 0 0;position:relative}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background-image:radial-gradient(rgba(216,169,60,.5) 1px,transparent 1px);background-size:16px 1px;opacity:.5;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:19px;font-weight:700;margin-bottom:16px}
.footer-desc{font-size:14.5px;line-height:1.85;color:#A9BAD3;max-width:34ch}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.08);font-size:12.5px;color:#C8D5E8}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul li + li{margin-top:10px}
.footer-col a{color:#C8D5E8;font-size:14.5px;position:relative}
.footer-col a:hover{color:#fff;box-shadow:inset 0 -2px 0 var(--gold)}
.footer-contact li{font-size:14px;color:#A9BAD3;margin-bottom:10px}
.footer-contact strong{display:block;color:#fff;font-size:14px;font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:#8FA2BE;
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .nav-extra .nav-cta,.nav-extra .mega{display:none}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:100%;max-width:420px;
    background:#fff;padding:88px 24px 32px;overflow-y:auto;z-index:100;
    transform:translateX(102%);transition:transform .28s ease;box-shadow:-16px 0 40px rgba(15,37,73,.14);
    margin-left:0;
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav ul li a{height:auto;padding:16px 2px;font-size:17px;border-bottom:1px solid var(--line-soft)}
  .main-nav ul li a::after{display:none}
  .mobile-cta{display:block;margin-top:24px}
  .mobile-cta .btn{width:100%}
  .nav-close{
    display:none;position:fixed;top:16px;right:20px;z-index:110;
    width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
    background:#fff;color:var(--ink);font-size:17px;
  }
  body.nav-open .nav-close{display:inline-flex;align-items:center;justify-content:center}
  .layout{grid-template-columns:1fr;gap:40px}
  .sidebar{position:static}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;padding:56px 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .article-hero h1{font-size:32px}
  .article-hero{padding-top:32px}
  .article-body h2{font-size:24px;margin-top:38px}
  .article-body h3{font-size:19px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .section-head{flex-direction:column;align-items:flex-start}
  .crumb .current{max-width:26ch}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .article-hero h1{font-size:28px}
  .article-cover img{border-radius:12px}
  .article-main{padding:36px 0 64px}
  .related-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav .next{text-align:left}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .cta-inner h2{font-size:24px}
  .btn{width:100%}
  .cta-actions{width:100%}
  .back-row .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --ink:#17356B;
  --ink-deep:#0F2549;
  --teal:#0E7C86;
  --gold:#D8A93C;
  --paper:#F8FAFD;
  --band:#EEF3F9;
  --card:#FFFFFF;
  --t1:#1B2533;
  --t2:#566374;
  --t3:#8B96A6;
  --line:#DFE7F1;
  --line-soft:#EAF0F7;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 4px rgba(23,53,107,.04), 0 12px 28px rgba(23,53,107,.06);
  --sh-2:0 16px 36px rgba(23,53,107,.12);
  --sh-nav:0 2px 12px rgba(23,53,107,.06);
  --serif:"Noto Serif SC",Georgia,"Songti SC",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.8;
  color:var(--t1);
  background:var(--paper);
  letter-spacing:0;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--teal)}
p{margin:0 0 16px}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,h5,h6{margin:0 0 14px;letter-spacing:-.01em;color:var(--ink-deep);font-weight:700}
h1{font-family:var(--serif);font-size:clamp(28px,4vw,46px);line-height:1.26}
h2{font-family:var(--serif);font-size:clamp(23px,2.6vw,32px);line-height:1.35}
h3{font-size:20px;line-height:1.5}
h4{font-size:16px}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:15.5px;color:var(--t1);border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;height:46px;padding:0 14px;width:100%;transition:border-color .18s ease, box-shadow .18s ease}
textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.7}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(23,53,107,.12)}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}

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

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:transform .2s ease, background-color .2s ease, box-shadow .2s ease, color .2s ease;
}
.btn-primary{background:var(--ink);color:#fff;box-shadow:0 8px 18px rgba(23,53,107,.18)}
.btn-primary:hover{background:var(--ink-deep);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px rgba(23,53,107,.24)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(23,53,107,.2)}
.btn-ghost{background:transparent;border-color:rgba(23,53,107,.32);color:var(--ink)}
.btn-ghost:hover{background:rgba(23,53,107,.08);color:var(--ink);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--ink-deep);box-shadow:0 10px 24px rgba(0,0,0,.18)}
.btn-light:hover{background:#F2F6FC;color:var(--ink-deep);transform:translateY(-1px)}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}

.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--teal)}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover{color:var(--ink)}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line-soft);transition:box-shadow .25s ease}
.site-header.scrolled{box-shadow:var(--sh-nav)}
.nav-wrap{display:flex;align-items:center;gap:26px;height:72px;transition:height .25s ease}
.site-header.scrolled .nav-wrap{height:64px}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{color:var(--gold);font-size:19px;line-height:1}
.brand-name{display:flex;flex-direction:column;font-size:19px;font-weight:700;color:var(--ink-deep);line-height:1.15;letter-spacing:-.01em}
.brand-name em{font-style:normal;font-size:11px;font-weight:500;color:var(--t3);letter-spacing:.08em;margin-top:3px}

.main-nav{flex:1 1 auto}
.main-nav > ul{display:flex;align-items:center;gap:2px}
.main-nav > ul > li > a{position:relative;display:flex;align-items:center;height:72px;padding:0 13px;font-size:15px;font-weight:500;color:var(--t2);white-space:nowrap;transition:color .18s ease, height .25s ease}
.site-header.scrolled .main-nav > ul > li > a{height:64px}
.main-nav > ul > li > a::after{content:"";position:absolute;left:13px;right:13px;bottom:16px;height:2px;background:var(--ink);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.main-nav > ul > li > a:hover{color:var(--ink)}
.main-nav > ul > li > a:hover::after{transform:scaleX(1)}
.main-nav > ul > li > a.active{color:var(--ink);font-weight:600}
.main-nav > ul > li > a.active::after{transform:scaleX(1)}

.mobile-cta{display:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:17px;cursor:pointer}
.nav-toggle:hover{background:var(--band)}
.nav-close{display:none;width:40px;height:40px;border:0;background:transparent;color:var(--ink);font-size:20px;cursor:pointer}

.nav-extra{flex:0 0 auto;position:relative}
.mega{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 16px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--ink);font-size:14.5px;font-weight:600;cursor:pointer;transition:.2s ease}
.mega-trigger:hover{background:var(--band);border-color:rgba(23,53,107,.2)}
.mega-trigger i{font-size:11px;color:var(--t3);transition:transform .2s ease}
.mega.open .mega-trigger i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:760px;
  background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-2);
  padding:26px;display:grid;grid-template-columns:1.15fr .85fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .2s ease, transform .2s ease, visibility .2s ease;
}
.mega.open .mega-panel,.mega:hover .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-title{font-size:13px;font-weight:700;color:var(--t3);letter-spacing:.08em;margin:0 0 14px}
.mega-list li a{display:flex;gap:12px;padding:11px 12px;border-radius:12px;transition:background-color .18s ease}
.mega-list li a:hover{background:var(--band)}
.mega-list .mi{flex:0 0 36px;width:36px;height:36px;border-radius:10px;background:rgba(23,53,107,.08);color:var(--ink);display:flex;align-items:center;justify-content:center;font-size:14px}
.mega-list b{display:block;font-size:14.5px;color:var(--t1);font-weight:600}
.mega-list em{display:block;font-style:normal;font-size:13px;color:var(--t3);margin-top:2px}
.mega-side .mega-card{display:block;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:12px;transition:.2s ease}
.mega-side .mega-card:hover{transform:translateY(-2px);box-shadow:var(--sh-1)}
.mega-side .mega-card img{aspect-ratio:16/9;width:100%;object-fit:cover;background:var(--band)}
.mega-side .mega-card span{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;font-size:14px;font-weight:600;color:var(--ink)}
.mega-side .mini-links li a{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--t2);padding:8px 0;border-bottom:1px solid var(--line-soft)}
.mega-side .mini-links li a:hover{color:var(--teal)}
.mega-side .mini-links em{font-style:normal;color:var(--t3);font-size:12.5px;flex:0 0 auto}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 88px;background:linear-gradient(180deg,#F8FAFD 0%,#EEF3F9 100%);border-bottom:1px solid var(--line-soft)}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle,rgba(23,53,107,.4) 1.2px,transparent 1.2px);background-size:28px 28px;opacity:.12;-webkit-mask-image:linear-gradient(100deg,transparent 20%,#000 65%);mask-image:linear-gradient(100deg,transparent 20%,#000 65%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--teal);background:rgba(14,124,134,.1);padding:6px 14px;border-radius:999px;margin-bottom:20px}
.hero h1{margin-bottom:20px}
.hero .lead{font-size:17px;color:var(--t2);max-width:33em;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.trust-bar{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);padding-top:22px}
.trust-bar li{flex:1 1 120px;padding-right:20px;margin-right:20px;border-right:1px solid var(--line)}
.trust-bar li:last-child{border-right:0;margin-right:0;padding-right:0}
.trust-bar strong{display:block;font-family:var(--serif);font-size:23px;color:var(--ink);line-height:1.25}
.trust-bar span{font-size:13px;color:var(--t3)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:16px;border:1px solid var(--line);background:var(--band);box-shadow:var(--sh-1)}
.hero-chip{position:absolute;right:18px;bottom:18px;background:#fff;border-radius:12px;padding:12px 16px;box-shadow:var(--sh-2);border:1px solid var(--line-soft)}
.hero-chip b{display:block;font-size:12.5px;color:var(--t3);font-weight:600;letter-spacing:.04em}
.hero-chip span{font-size:15px;font-weight:700;color:var(--ink)}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-band{background:var(--band)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.section-head .kicker{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--teal);margin:0 0 10px}
.section-head h2{margin-bottom:10px}
.section-sub{color:var(--t2);max-width:44em;margin:0}

/* ---------- chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.chip{height:38px;padding:0 18px;border-radius:999px;border:1px solid rgba(14,124,134,.35);background:#fff;color:var(--teal);font-size:14px;font-weight:600;cursor:pointer;transition:.2s ease}
.chip:hover{background:rgba(14,124,134,.08)}
.chip.is-active{background:var(--teal);color:#fff;border-color:var(--teal);box-shadow:0 8px 18px rgba(14,124,134,.22)}

/* ---------- material cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.m-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease}
.m-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(23,53,107,.22)}
.m-figure{position:relative;aspect-ratio:16/9;background:var(--band);overflow:hidden}
.m-figure img{width:100%;height:100%;object-fit:cover}
.badge{position:absolute;top:14px;left:14px;font-size:13px;font-weight:600;padding:4px 12px;border-radius:999px;background:rgba(255,255,255,.92);color:var(--teal);box-shadow:0 2px 8px rgba(23,53,107,.1)}
.m-body{padding:24px 24px 26px}
.m-body h3{font-size:19px;margin-bottom:8px}
.m-body > p{font-size:15px;color:var(--t2);margin-bottom:16px}
.kv li{display:flex;justify-content:space-between;gap:14px;padding:10px 0;border-top:1px solid var(--line-soft);font-size:14.5px}
.kv li span{color:var(--t3);flex:0 0 auto}
.kv li b{color:var(--t1);font-weight:600;text-align:right}
.m-arrow{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:rgba(23,53,107,.07);color:var(--ink);margin-top:18px;transition:.2s ease}
.m-card:hover .m-arrow{background:var(--ink);color:#fff;transform:translateX(3px)}

/* ---------- table ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;box-shadow:var(--sh-1)}
.spec-table{width:100%;border-collapse:collapse;min-width:820px}
.spec-table th{background:var(--ink-deep);color:#fff;font-size:14.5px;font-weight:600;text-align:left;padding:16px 20px;white-space:nowrap}
.spec-table td{padding:16px 20px;font-size:15px;color:var(--t2);border-bottom:1px solid var(--line-soft)}
.spec-table tbody tr:nth-child(even){background:#FBFCFE}
.spec-table tbody tr:hover{background:rgba(14,124,134,.05)}
.spec-table td:first-child{font-weight:700;color:var(--t1);position:relative}
.spec-table td:first-child::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--gold);border-radius:3px;opacity:.75}
.spec-table td:first-child{padding-left:20px}
.scroll-hint{font-size:13px;color:var(--t3);margin:12px 0 0}

/* ---------- feature rows ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-bottom:72px}
.feature-row:last-child{margin-bottom:0}
.feature-row.reverse .feature-media{order:2}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;border:1px solid var(--line);background:var(--band);box-shadow:var(--sh-1)}
.feature-copy h3{font-size:24px;margin-bottom:12px}
.feature-copy > p{color:var(--t2)}
.check-list{margin-top:20px}
.check-list li{display:flex;gap:12px;padding:11px 0;border-top:1px solid var(--line-soft);font-size:15.5px;color:var(--t2)}
.check-list li i{flex:0 0 auto;margin-top:6px;color:var(--teal);font-size:13px}
.check-list li b{color:var(--t1);font-weight:600}

/* ---------- combo cards ---------- */
.combo-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);position:relative;overflow:hidden;transition:transform .2s ease, box-shadow .2s ease}
.combo-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;background:linear-gradient(90deg,var(--teal),var(--ink))}
.combo-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.combo-card h3{font-size:19px;margin-bottom:6px}
.combo-card .combo-tag{display:inline-block;font-size:13px;font-weight:600;color:var(--ink);background:rgba(23,53,107,.08);border-radius:999px;padding:4px 12px;margin-bottom:14px}
.combo-card p{font-size:15px;color:var(--t2)}
.combo-meta{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line-soft);margin-top:18px;padding-top:16px;font-size:14px;color:var(--t3)}
.combo-meta b{color:var(--teal);font-size:15px}

/* ---------- faq ---------- */
.faq-list{max-width:920px;margin:0 auto}
.faq-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:14px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease}
.faq-item:hover{border-color:rgba(23,53,107,.2)}
.faq-item[open]{box-shadow:var(--sh-1)}
.faq-item[open]::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--ink)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 24px;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;line-height:1;color:var(--gold);transition:transform .2s ease}
.faq-item[open] summary{color:var(--teal)}
.faq-item[open] summary::after{content:"−"}
.faq-answer{padding:0 24px 24px;font-size:15.5px;line-height:1.85;color:var(--t2)}
.faq-answer p:last-child{margin-bottom:0}

/* ---------- cta ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--ink-deep);color:#E4ECF8;padding:72px 0}
.cta-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle,rgba(216,169,60,.6) 1.2px,transparent 1.2px);background-size:26px 26px;opacity:.16;pointer-events:none}
.cta-grid{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px}
.cta-grid h2{color:#fff;margin-bottom:10px}
.cta-grid p{color:#B9C8E0;margin:0;max-width:46em}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{position:relative;background:var(--ink-deep);color:#C8D5E8;padding:76px 0 28px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background-image:radial-gradient(circle,rgba(216,169,60,.85) 1.4px,transparent 1.4px);background-size:26px 3px;opacity:.7}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{color:var(--gold)}
.footer-desc{font-size:14.5px;line-height:1.85;color:#A9BAD3;margin-bottom:16px}
.footer-tags span{display:inline-block;font-size:12.5px;padding:4px 11px;border-radius:999px;background:rgba(200,213,232,.12);color:#C8D5E8;margin:0 8px 8px 0}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px}
.footer-col ul li{margin-bottom:11px;font-size:14.5px;color:#C8D5E8}
.site-footer a{color:#C8D5E8;position:relative;padding-bottom:2px}
.site-footer a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.site-footer a:hover{color:#fff}
.site-footer a:hover::after{transform:scaleX(1)}
.footer-contact li{display:flex;flex-wrap:wrap;gap:6px;align-items:baseline}
.footer-contact strong{color:#8FA3C0;font-weight:500;font-size:13px}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:56px;padding-top:22px;border-top:1px solid rgba(200,213,232,.16);font-size:12.5px;color:#8FA3C0}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 20px}
  .section{padding:80px 0}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;order:3}
  .nav-extra{order:2}
  .main-nav{
    position:fixed;inset:0;z-index:80;background:#fff;padding:84px 20px 32px;
    overflow-y:auto;transform:translateX(100%);transition:transform .28s ease;
  }
  .main-nav.open{transform:translateX(0)}
  .main-nav > ul{flex-direction:column;align-items:stretch;gap:0}
  .main-nav > ul > li > a{height:auto;padding:15px 4px;font-size:16.5px;border-bottom:1px solid var(--line-soft);color:var(--t1)}
  .main-nav > ul > li > a::after{display:none}
  .main-nav > ul > li > a.active{color:var(--ink)}
  .mobile-cta{display:block;margin-top:24px}
  .mobile-cta .btn{width:100%}
  .nav-close{display:flex;position:fixed;top:18px;right:20px;z-index:90}
  .mega-panel{width:min(680px,calc(100vw - 40px))}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media img{aspect-ratio:16/10}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .feature-row{grid-template-columns:1fr;gap:28px;margin-bottom:56px}
  .feature-row.reverse .feature-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-grid{flex-direction:column;align-items:flex-start;gap:24px}
}
@media (max-width:639px){
  body{font-size:16px}
  .section{padding:56px 0}
  .brand-name{font-size:17px}
  .hero{padding:44px 0 52px}
  .trust-bar{border-top:0;padding-top:8px}
  .trust-bar li{flex:1 1 46%;border-right:0;margin:0 0 14px;padding:0}
  .hero-actions .btn{width:100%}
  .grid-3{grid-template-columns:1fr;gap:18px}
  .m-figure{aspect-ratio:4/3}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .faq-item summary{padding:18px 18px;font-size:16px}
  .faq-answer{padding:0 18px 20px}
  .chips{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch}
  .chip{flex:0 0 auto}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --ink:#17356B;
  --ink-deep:#0F2549;
  --teal:#0E7C86;
  --gold:#D8A93C;
  --paper:#F8FAFD;
  --paper-alt:#EEF3F9;
  --white:#FFFFFF;
  --text:#1B2533;
  --text-2:#566374;
  --text-3:#8B96A6;
  --border:#DFE7F1;
  --line:#EAF0F7;
  --ok:#1F8A5B;
  --warn:#C2611F;
  --r-lg:14px;
  --r-md:10px;
  --r-sm:12px;
  --sh-1:0 2px 4px rgba(23,53,107,.04),0 12px 28px rgba(23,53,107,.06);
  --sh-2:0 16px 36px rgba(23,53,107,.12);
  --sh-nav:0 2px 12px rgba(23,53,107,.06);
  --serif:"Noto Serif SC",-apple-system,"PingFang SC","Microsoft YaHei",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;background:var(--paper);color:var(--text);
  font-family:var(--sans);font-size:16.5px;line-height:1.8;
  font-weight:400;letter-spacing:0;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;font-family:var(--serif);font-weight:700;color:var(--ink);line-height:1.32;letter-spacing:-.01em}
p{margin:0}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;background:transparent;transition:color .2s ease,border-color .2s ease}
a:hover{color:var(--teal)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;line-height:1;color:inherit;background:none;border:0;padding:0;margin:0;cursor:pointer;border-radius:0}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text)}
figure,blockquote{margin:0}
table{border-collapse:collapse;width:100%}
:focus{outline:none}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn i{font-size:13px;transition:transform .2s ease}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--ink-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--border)}
.btn-ghost:hover{background:rgba(23,53,107,.06);border-color:rgba(23,53,107,.28);color:var(--ink)}
.btn-gold{background:var(--gold);color:#2A1F05}
.btn-gold:hover{background:#E4B94F;color:#2A1F05;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-outline-light{background:transparent;color:#E6EDF8;border-color:rgba(230,237,248,.4)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.65)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);border:0;padding:0;height:auto}
.btn-text i{font-size:12px;transition:transform .2s ease}
.btn-text:hover{color:var(--teal)}
.btn-text:hover i{transform:translateX(4px)}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--teal);
  background:rgba(14,124,134,.12);border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.chip{
  display:inline-block;font-size:13px;font-weight:600;line-height:1;padding:6px 12px;border-radius:999px;
  background:rgba(14,124,134,.14);color:#0A5B62;
}
.chip-gold{background:rgba(216,169,60,.2);color:#7A5A0C}
.chip-ink{background:rgba(23,53,107,.12);color:var(--ink)}
.section{padding:96px 0}
.section-alt{background:var(--paper-alt)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section-head h2{font-size:32px}
.section-desc{max-width:520px;font-size:16px;color:var(--text-2);line-height:1.8}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:90;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--sh-nav)}
.nav-wrap{display:flex;align-items:center;gap:28px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .nav-wrap{height:64px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:50%;background:var(--ink);color:var(--gold);
  display:grid;place-items:center;font-size:16px;flex:0 0 auto;
}
.brand-name{display:flex;flex-direction:column;font-size:18px;font-weight:700;color:var(--ink);line-height:1.16;letter-spacing:-.01em}
.brand-name em{font-style:normal;font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:.14em;margin-top:2px}
.main-nav{flex:1 1 auto}
.main-nav ul{display:flex;align-items:center;gap:2px}
.main-nav ul a{
  position:relative;display:block;padding:10px 12px;font-size:15px;font-weight:500;color:var(--text-2);border-radius:6px;
}
.main-nav ul a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--ink);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;border-radius:2px;
}
.main-nav ul a:hover{color:var(--ink)}
.main-nav ul a:hover::after,.main-nav ul a.active::after{transform:scaleX(1)}
.main-nav ul a.active{color:var(--ink);font-weight:600}
.mobile-cats,.mobile-cta{display:none}
.nav-extra{flex:0 0 auto;position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;border:1px solid var(--border);
  border-radius:999px;font-size:14.5px;font-weight:600;color:var(--ink);transition:all .2s ease;
}
.mega-trigger i{font-size:11px;transition:transform .2s ease}
.mega-trigger:hover{border-color:rgba(23,53,107,.35);background:rgba(23,53,107,.04)}
.mega.is-open .mega-trigger i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:860px;max-width:min(880px,86vw);
  background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:0 24px 56px rgba(15,37,73,.16);
  padding:26px;display:grid;grid-template-columns:1.1fr 1fr;gap:28px;
  opacity:0;visibility:hidden;transform:translateY(-6px);pointer-events:none;
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}
.mega-title{font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--text-3);margin-bottom:12px}
.mega-list li+li{margin-top:2px}
.mega-list a{display:flex;gap:12px;align-items:flex-start;padding:10px 10px;border-radius:10px;transition:background-color .18s ease}
.mega-list a:hover{background:var(--paper-alt)}
.mi{
  width:34px;height:34px;flex:0 0 auto;border-radius:9px;background:rgba(23,53,107,.08);color:var(--ink);
  display:grid;place-items:center;font-size:13px;
}
.mega-list b{display:block;font-size:14.5px;font-weight:600;color:var(--ink);line-height:1.4}
.mega-list em{display:block;font-style:normal;font-size:12.5px;color:var(--text-3);margin-top:2px}
.mega-side{border-left:1px solid var(--line);padding-left:26px}
.mega-card{display:flex;gap:12px;align-items:center;padding:10px;border:1px solid var(--border);border-radius:12px;margin-bottom:10px;transition:all .2s ease}
.mega-card:hover{border-color:rgba(23,53,107,.3);box-shadow:var(--sh-1);transform:translateY(-2px)}
.mega-card img{width:64px;height:44px;border-radius:8px;object-fit:cover;background:var(--paper-alt);flex:0 0 auto}
.mega-card b{display:block;font-size:14px;color:var(--ink);font-weight:600}
.mega-card em{display:block;font-style:normal;font-size:12.5px;color:var(--text-3);margin-top:2px}
.mega-news{margin-top:6px}
.mega-news li{display:flex;justify-content:space-between;gap:12px;align-items:baseline;padding:7px 0;border-bottom:1px dashed var(--line)}
.mega-news li:last-child{border-bottom:0}
.mega-news a{font-size:13.5px;color:var(--text-2);flex:1 1 auto}
.mega-news a:hover{color:var(--ink)}
.mega-news span{font-size:12px;color:var(--text-3);flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--border);place-items:center;font-size:16px;color:var(--ink)}
.nav-close{display:none;position:fixed;top:20px;right:20px;z-index:130;width:44px;height:44px;border-radius:50%;background:var(--paper-alt);color:var(--ink);place-items:center;font-size:18px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FFFFFF 0%,var(--paper) 100%);padding:32px 0 96px}
.hero::after{
  content:"";position:absolute;right:-60px;top:60px;width:560px;height:440px;pointer-events:none;
  background-image:radial-gradient(rgba(23,53,107,.9) 1.3px,transparent 1.3px);
  background-size:22px 22px;opacity:.055;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:28px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb i{font-size:10px;color:var(--text-3)}
.hero-inner{display:grid;grid-template-columns:1.02fr 1fr;gap:56px;align-items:center;position:relative;z-index:2}
.hero h1{font-size:46px;line-height:1.24;margin-bottom:20px}
.hero h1 strong{color:var(--teal);font-weight:700}
.hero-sub{font-size:17px;color:var(--text-2);line-height:1.85;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 34px}
.trust-bar{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);padding-top:22px}
.trust-bar li{padding-right:26px;margin-right:26px;border-right:1px solid var(--line)}
.trust-bar li:last-child{border-right:0;padding-right:0;margin-right:0}
.trust-bar b{display:block;font-family:var(--serif);font-size:24px;color:var(--ink);line-height:1.2}
.trust-bar span{font-size:13px;color:var(--text-3)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/12;object-fit:cover;border-radius:16px;background:var(--paper-alt);box-shadow:var(--sh-1)}
.hero-badge{
  position:absolute;right:-14px;bottom:-18px;background:#fff;border:1px solid var(--border);border-radius:12px;
  padding:14px 20px;box-shadow:var(--sh-2);min-width:180px;
}
.hero-badge b{display:block;font-family:var(--serif);font-size:22px;color:var(--ink);line-height:1.2}
.hero-badge span{font-size:12.5px;color:var(--text-3)}

/* ---------- 磁贴图墙 ---------- */
.tile-wall{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:206px;gap:22px}
.tile{
  position:relative;overflow:hidden;border-radius:var(--r-lg);background:var(--paper-alt);
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.tile:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.tile:hover img{transform:scale(1.04)}
.tile-veil{
  position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(15,37,73,.06) 30%,rgba(15,37,73,.52) 68%,rgba(15,37,73,.86) 100%);
}
.tile-body{position:absolute;left:0;right:0;bottom:0;padding:22px;color:#fff}
.tile-body h3{color:#fff;font-size:20px;margin:10px 0 8px}
.tile-body p{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.86)}
.tile-tall{grid-row:span 2}
.tile-wide{grid-column:span 3}
.tile-wide .tile-body{max-width:620px}
.tile .chip{background:rgba(255,255,255,.2);color:#fff;backdrop-filter:blur(2px)}

/* ---------- 宽幅场景卡 ---------- */
.scene-row{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  background:#fff;border:1px solid var(--border);border-radius:18px;padding:34px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.scene-row+.scene-row{margin-top:30px}
.scene-row:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(23,53,107,.2)}
.scene-row.reverse .scene-media{order:2}
.scene-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-sm);background:var(--paper-alt)}
.scene-copy h3{font-size:23px;margin-bottom:12px}
.scene-copy>p{color:var(--text-2);font-size:15.5px}
.scene-points{margin-top:20px;border-top:1px solid var(--line);padding-top:18px}
.scene-points li{position:relative;padding-left:24px;font-size:14.5px;color:var(--text-2);margin-bottom:10px}
.scene-points li:last-child{margin-bottom:0}
.scene-points li::before{
  content:"";position:absolute;left:2px;top:11px;width:8px;height:8px;border-radius:2px;
  background:var(--gold);transform:rotate(45deg);
}
.scene-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}

/* ---------- 规格表 ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--border);border-radius:var(--r-lg);background:#fff;box-shadow:var(--sh-1)}
.spec-table{min-width:860px;font-size:14.5px}
.spec-table thead th{
  background:var(--ink-deep);color:#fff;font-weight:600;text-align:left;padding:16px 20px;font-size:14px;
  white-space:nowrap;letter-spacing:.02em;
}
.spec-table tbody td{padding:16px 20px;border-bottom:1px solid var(--line);color:var(--text-2);vertical-align:top}
.spec-table tbody tr:nth-child(even){background:#FBFCFE}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table tbody th{
  text-align:left;padding:16px 20px;border-bottom:1px solid var(--line);color:var(--ink);font-weight:700;
  font-size:14.5px;white-space:nowrap;border-left:3px solid transparent;
}
.spec-table tbody tr:hover th{border-left-color:var(--ink)}
.spec-table tbody tr:hover{background:rgba(23,53,107,.035)}
.scroll-hint{display:none;font-size:12.5px;color:var(--text-3);margin-top:10px;text-align:center}

/* ---------- 客户证言 ---------- */
.quote-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:16px;
}
.quote-top{display:flex;align-items:center;gap:12px}
.avatar{
  width:44px;height:44px;border-radius:50%;flex:0 0 auto;display:grid;place-items:center;
  background:rgba(14,124,134,.14);color:#0A5B62;font-size:17px;font-weight:700;font-family:var(--serif);
}
.quote-top b{display:block;font-size:14.5px;color:var(--ink)}
.quote-top em{display:block;font-style:normal;font-size:12.5px;color:var(--text-3);margin-top:2px}
.quote-item blockquote{font-size:14.8px;line-height:1.85;color:var(--text-2);border-top:1px solid var(--line);padding-top:16px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;padding:22px 26px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:16.5px;font-weight:600;color:var(--ink);position:relative;transition:color .2s ease,background-color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:var(--ink);
  border-radius:0 3px 3px 0;transform:scaleY(0);transition:transform .2s ease;
}
.faq-item summary:hover{background:#FBFCFE}
.faq-item summary i{font-size:14px;color:var(--text-3);transition:transform .25s ease;flex:0 0 auto}
.faq-item[open] summary{color:var(--ink)}
.faq-item[open] summary::before{transform:scaleY(1)}
.faq-item[open] summary i{transform:rotate(45deg);color:var(--teal)}
.faq-body{padding:0 26px 24px 26px}
.faq-body p{font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-body p+p{margin-top:10px}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink-deep);position:relative;overflow:hidden;padding:74px 0}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(216,169,60,.85) 1.2px,transparent 1.2px);
  background-size:26px 26px;opacity:.09;
}
.cta-band::after{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(216,169,60,.5),transparent)}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px}
.cta-inner h2{color:#fff;font-size:30px;max-width:640px}
.cta-inner p{color:rgba(226,234,246,.82);font-size:15.5px;margin-top:12px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:#C8D5E8;padding:70px 0 26px;position:relative}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(216,169,60,.45),transparent)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;font-size:15px}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(200,213,232,.82)}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{font-size:12.5px;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.08);color:#D5E0F0}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-family:var(--sans);font-weight:600;letter-spacing:.02em}
.footer-col ul li{margin-bottom:11px}
.footer-col a{font-size:14px;color:#C8D5E8;border-bottom:2px solid transparent;padding-bottom:1px;transition:all .2s ease}
.footer-col a:hover{color:#fff;border-bottom-color:var(--gold)}
.footer-contact li{font-size:14px;color:rgba(200,213,232,.85);display:flex;gap:10px;margin-bottom:11px}
.footer-contact strong{color:#fff;font-weight:600;flex:0 0 auto}
.footer-bottom{
  margin-top:46px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:12px;color:rgba(200,213,232,.62);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:80px 0}
  .hero{padding:24px 0 80px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:34px}
  .hero::after{opacity:.04;width:380px;height:320px}
  .hero-media img{aspect-ratio:16/9}
  .tile-wall{grid-template-columns:repeat(2,1fr);grid-auto-rows:196px}
  .tile-wide{grid-column:span 2}
  .scene-row{grid-template-columns:1fr;gap:26px;padding:26px}
  .scene-row.reverse .scene-media{order:0}
  .quote-strip{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .scroll-hint{display:block}

  .nav-toggle{display:grid}
  .nav-extra{display:none}
  .main-nav{
    position:fixed;inset:0;background:#fff;z-index:120;padding:86px 22px 40px;overflow-y:auto;
    transform:translateX(100%);transition:transform .28s ease;
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav ul{display:block}
  .main-nav ul li{border-bottom:1px solid var(--line)}
  .main-nav ul a{padding:16px 2px;font-size:16.5px;color:var(--ink)}
  .main-nav ul a::after{display:none}
  .mobile-cats{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:26px}
  .mobile-cats a{display:block;padding:14px;border:1px solid var(--border);border-radius:12px;background:var(--paper);font-size:14px;font-weight:600;color:var(--ink)}
  .mobile-cats a em{display:block;font-style:normal;font-size:12px;font-weight:400;color:var(--text-3);margin-top:4px}
  .mobile-cta{display:block;margin-top:26px}
  .mobile-cta .btn{width:100%}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .hero{padding:16px 0 56px}
  .hero h1{font-size:29px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .hero-badge{position:static;margin-top:16px;right:auto;bottom:auto;display:inline-block}
  .trust-bar{gap:0}
  .trust-bar li{padding-right:16px;margin-right:16px}
  .trust-bar b{font-size:20px}
  .tile-wall{grid-template-columns:1fr;grid-auto-rows:auto}
  .tile{min-height:248px;grid-row:auto!important;grid-column:auto!important}
  .tile-tall{min-height:320px}
  .section-head h2{font-size:24px}
  .scene-copy h3{font-size:20px}
  .cta-inner h2{font-size:23px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .faq-item summary{padding:18px 18px;font-size:15.5px}
  .faq-body{padding:0 18px 20px}
}

/* roulang page: category4 */
:root{
  --ink:#17356B;
  --ink-deep:#0F2549;
  --teal:#0E7C86;
  --gold:#D8A93C;
  --paper:#F8FAFD;
  --band:#EEF3F9;
  --card:#FFFFFF;
  --t1:#1B2533;
  --t2:#566374;
  --t3:#8B96A6;
  --bd:#DFE7F1;
  --line:#EAF0F7;
  --ok:#1F8A5B;
  --warn:#C2611F;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 4px rgba(23,53,107,.04),0 12px 28px rgba(23,53,107,.06);
  --sh-2:0 16px 36px rgba(23,53,107,.12);
  --sp:8px;
  --font: -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --serif: "Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.8;
  color:var(--t1);
  background:var(--paper);
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--teal);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--ink);letter-spacing:-.01em;line-height:1.32;font-weight:700;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:6px;}

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

/* ---------- foundation 覆盖 ---------- */
.button,button.button{
  background:var(--ink);color:#fff;border-radius:var(--r-btn);font-weight:600;
  box-shadow:none;border:none;transition:all .18s ease;
}
.button:hover{background:var(--ink-deep);color:#fff;}
.grid-x{margin-left:-16px;margin-right:-16px;}
.grid-x>.cell{padding-left:16px;padding-right:16px;}
.grid-margin-x{margin-left:-16px;margin-right:-16px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .18s ease;white-space:nowrap;
}
.btn i{font-size:13px;transition:transform .18s ease;}
.btn-primary{background:var(--ink);color:#fff;box-shadow:0 6px 16px rgba(23,53,107,.16);}
.btn-primary:hover{background:var(--ink-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(23,53,107,.22);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(23,53,107,.18);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--bd);}
.btn-ghost:hover{background:rgba(23,53,107,.06);border-color:rgba(23,53,107,.35);color:var(--ink);}
.btn-text{display:inline-flex;align-items:center;gap:6px;height:auto;padding:0;font-weight:600;color:var(--ink);background:none;border:none;font-size:15px;}
.btn-text i{font-size:12px;transition:transform .2s ease;}
.btn-text:hover{color:var(--teal);}
.btn-text:hover i{transform:translateX(4px);}
.btn-sm{height:42px;padding:0 18px;font-size:14.5px;}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;line-height:1;
  padding:7px 13px;border-radius:999px;
  background:rgba(14,124,134,.12);color:var(--teal);
}
.tag-gold{background:rgba(216,169,60,.16);color:#9A7418;}
.tag-ink{background:rgba(23,53,107,.10);color:var(--ink);}
.tag-ok{background:rgba(31,138,91,.12);color:var(--ok);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:200;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 2px 12px rgba(23,53,107,.06);}
.nav-wrap{display:flex;align-items:center;gap:26px;height:72px;transition:height .25s ease;}
.site-header.scrolled .nav-wrap{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:var(--ink);color:var(--gold);font-size:15px;line-height:1;
}
.brand-name{display:flex;flex-direction:column;font-size:18px;font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.15;}
.brand-name em{font-style:normal;font-size:11.5px;font-weight:500;color:var(--t3);letter-spacing:.06em;}

.main-nav{flex:1;min-width:0;}
.main-nav ul{display:flex;align-items:center;gap:2px;}
.main-nav a{
  position:relative;display:flex;align-items:center;height:72px;padding:0 13px;
  font-size:15px;font-weight:500;color:var(--t2);white-space:nowrap;transition:color .18s ease,height .25s ease;
}
.site-header.scrolled .main-nav a{height:64px;}
.main-nav a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:14px;height:2px;
  background:var(--ink);border-radius:2px;opacity:0;transform:scaleX(.4);transition:all .2s ease;
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after,.main-nav a.active::after{opacity:1;transform:scaleX(1);}
.main-nav a.active{color:var(--ink);font-weight:600;}
.mobile-cta{display:none;}

.nav-extra{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.mega{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 16px;
  border-radius:var(--r-btn);border:1px solid var(--bd);background:#fff;
  color:var(--ink);font-size:14.5px;font-weight:600;cursor:pointer;transition:all .18s ease;
}
.mega-trigger:hover{border-color:rgba(23,53,107,.35);background:rgba(23,53,107,.04);}
.mega-trigger i{font-size:11px;transition:transform .2s ease;}
.mega.open .mega-trigger i,.mega:hover .mega-trigger i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:840px;max-width:calc(100vw - 48px);
  background:#fff;border:1px solid var(--bd);border-radius:16px;box-shadow:var(--sh-2);
  padding:26px;display:grid;grid-template-columns:1.15fr 1fr;gap:28px;
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .22s ease;
}
.mega:hover .mega-panel,.mega.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-title{font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--t3);margin:0 0 12px;text-transform:uppercase;}
.mega-list li+li{margin-top:4px;}
.mega-list a{display:flex;gap:12px;align-items:flex-start;padding:10px 12px;border-radius:10px;transition:background .18s ease;}
.mega-list a:hover{background:var(--band);}
.mi{
  width:34px;height:34px;border-radius:9px;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  background:rgba(14,124,134,.10);color:var(--teal);font-size:13px;
}
.mega-list b{display:block;font-size:14.5px;font-weight:600;color:var(--t1);line-height:1.4;}
.mega-list em{display:block;font-style:normal;font-size:12.5px;color:var(--t3);line-height:1.5;margin-top:2px;}
.mega-cards{display:grid;gap:10px;margin-bottom:20px;}
.mega-card{display:flex;gap:12px;align-items:center;border:1px solid var(--bd);border-radius:12px;padding:10px;transition:all .18s ease;}
.mega-card:hover{border-color:rgba(23,53,107,.3);box-shadow:var(--sh-1);}
.mega-card img{width:64px;height:48px;object-fit:cover;border-radius:8px;background:var(--band);}
.mega-card span{font-size:14px;font-weight:600;color:var(--t1);line-height:1.4;}
.mega-card em{display:block;font-style:normal;font-weight:400;font-size:12.5px;color:var(--t3);margin-top:3px;}
.mega-news li{display:flex;justify-content:space-between;gap:14px;align-items:center;padding:9px 0;border-bottom:1px dashed var(--line);}
.mega-news li:last-child{border-bottom:none;}
.mega-news a{font-size:14px;color:var(--t2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.mega-news a:hover{color:var(--ink);}
.mega-news time{font-size:12px;color:var(--t3);flex-shrink:0;}

.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--bd);background:#fff;color:var(--ink);font-size:16px;cursor:pointer;align-items:center;justify-content:center;}
.nav-close{display:none;position:absolute;top:14px;right:16px;width:44px;height:44px;border-radius:10px;border:1px solid var(--bd);background:#fff;color:var(--ink);font-size:16px;cursor:pointer;align-items:center;justify-content:center;z-index:5;}

/* ---------- Hero ---------- */
.hero{position:relative;padding:64px 0 88px;background:var(--paper);overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(23,53,107,.22) 1px,transparent 1px);
  background-size:26px 26px;opacity:.06;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;position:relative;}
.hero h1{font-size:46px;line-height:1.22;margin-bottom:20px;font-family:var(--serif);letter-spacing:-.02em;}
.hero h1 span{display:block;font-family:var(--font);font-size:16px;font-weight:600;color:var(--teal);letter-spacing:.06em;margin-bottom:14px;}
.hero-lead{font-size:17px;color:var(--t2);line-height:1.9;max-width:620px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.trust-bar{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);padding-top:22px;gap:8px;}
.trust-bar div{padding-right:12px;border-right:1px solid var(--line);}
.trust-bar div:last-child{border-right:none;}
.trust-bar strong{display:block;font-family:var(--serif);font-size:22px;color:var(--ink);line-height:1.3;}
.trust-bar span{font-size:13px;color:var(--t3);}
.hero-visual{position:relative;}
.hero-visual img{width:100%;height:420px;object-fit:cover;border-radius:16px;background:var(--band);box-shadow:inset 0 0 0 1px rgba(23,53,107,.08),var(--sh-1);}
.float-card{
  position:absolute;right:-14px;bottom:-24px;background:#fff;border:1px solid var(--bd);
  border-radius:var(--r-card);box-shadow:var(--sh-2);padding:18px 20px;min-width:210px;
}
.float-card b{display:block;font-family:var(--serif);font-size:26px;color:var(--ink);line-height:1.2;}
.float-card span{font-size:12.5px;color:var(--t3);}
.float-card .tag{margin-top:10px;}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--band);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:32px;margin:14px 0 14px;font-family:var(--serif);}
.section-head p{font-size:16px;color:var(--t2);}
.section-head.split{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;max-width:none;}

/* ---------- 价格表 ---------- */
.table-scroll{overflow-x:auto;border-radius:var(--r-card);box-shadow:var(--sh-1);-webkit-overflow-scrolling:touch;}
.price-table{width:100%;min-width:860px;border-collapse:separate;border-spacing:0;background:#fff;margin:0;}
.price-table thead th{
  background:var(--ink-deep);color:#fff;text-align:left;font-size:13.5px;font-weight:600;
  padding:16px 20px;letter-spacing:.04em;white-space:nowrap;
}
.price-table tbody td{padding:18px 20px;border-bottom:1px solid var(--line);font-size:15px;color:var(--t2);vertical-align:middle;}
.price-table tbody tr:last-child td{border-bottom:none;}
.price-table tbody tr:nth-child(even){background:#FBFCFE;}
.price-table tbody tr.is-pick{background:rgba(23,53,107,.045);}
.price-table tbody tr.is-pick td:first-child{box-shadow:inset 3px 0 0 var(--ink);}
.price-table td.strong{font-weight:700;color:var(--ink);font-size:15.5px;}
.price-table td .price{font-family:var(--serif);font-size:20px;color:var(--ink);font-weight:700;}
.price-table td .price small{font-family:var(--font);font-size:12.5px;font-weight:500;color:var(--t3);margin-left:2px;}
.scroll-hint{display:none;font-size:12.5px;color:var(--t3);margin-top:10px;text-align:center;}
.table-note{margin-top:18px;font-size:13.5px;color:var(--t3);line-height:1.8;}

/* ---------- 报价表单 ---------- */
.quote-grid{display:grid;grid-template-columns:5fr 6fr;gap:56px;align-items:start;}
.quote-points h2{font-size:30px;font-family:var(--serif);margin-bottom:16px;}
.quote-points>p{color:var(--t2);margin-bottom:26px;}
.point-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);}
.point-list li:last-child{border-bottom:none;}
.point-list i{color:var(--teal);font-size:15px;margin-top:5px;}
.point-list b{display:block;font-size:15.5px;color:var(--t1);font-weight:600;}
.point-list span{font-size:14px;color:var(--t3);line-height:1.7;}
.form-card{background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:32px;}
.form-card h3{font-size:21px;margin-bottom:6px;}
.form-card>p{font-size:14px;color:var(--t3);margin-bottom:24px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 18px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--t2);}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--bd);border-radius:var(--r-btn);background:#fff;
  color:var(--t1);padding:0 14px;height:46px;transition:all .18s ease;
}
.field textarea{height:96px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(23,53,107,.12);
}
.field input::placeholder,.field textarea::placeholder{color:var(--t3);}
.form-foot{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:22px;flex-wrap:wrap;}
.form-foot small{font-size:12.5px;color:var(--t3);max-width:320px;line-height:1.6;}
.form-tip{
  margin-top:18px;padding:14px 16px;border-radius:var(--r-btn);font-size:14.5px;
  background:rgba(31,138,91,.10);color:var(--ok);display:none;line-height:1.7;
}
.form-tip.show{display:block;}

/* ---------- 服务承诺 ---------- */
.promise-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.promise{background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-1);transition:all .2s ease;}
.promise:hover{transform:translateY(-4px);border-color:rgba(23,53,107,.2);box-shadow:var(--sh-2);}
.promise i{font-size:19px;color:var(--teal);}
.promise b{display:block;font-size:16.5px;color:var(--ink);margin:14px 0 8px;}
.promise p{font-size:14px;color:var(--t2);line-height:1.75;}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;counter-reset:step;}
.step{position:relative;background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);padding:28px 26px 26px;box-shadow:var(--sh-1);}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-family:var(--serif);font-size:30px;color:var(--gold);line-height:1;display:block;margin-bottom:16px;
}
.step b{display:block;font-size:17px;color:var(--ink);margin-bottom:10px;}
.step p{font-size:14.5px;color:var(--t2);}
.step-line{height:1px;background:var(--line);margin:34px 0 0;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item+.faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:none;text-align:left;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding:22px 26px;font-size:16.5px;font-weight:600;color:var(--t1);
  position:relative;transition:color .18s ease;
}
.faq-q::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--ink);opacity:0;transition:opacity .2s ease;}
.faq-q i{color:var(--t3);font-size:14px;transition:transform .2s ease;flex-shrink:0;}
.faq-q:hover{color:var(--ink);}
.faq-item.open .faq-q{color:var(--ink);}
.faq-item.open .faq-q::before{opacity:1;}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--ink);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a div{padding:0 26px 24px;font-size:15px;line-height:1.85;color:var(--t2);}

/* ---------- CTA ---------- */
.cta-bar{position:relative;background:var(--ink-deep);color:#fff;padding:72px 0;overflow:hidden;}
.cta-bar::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:30px 30px;opacity:.07;
}
.cta-inner{position:relative;display:flex;justify-content:space-between;align-items:center;gap:40px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:30px;font-family:var(--serif);margin-bottom:10px;}
.cta-inner p{color:#C8D5E8;font-size:15.5px;max-width:640px;}
.cta-bar .btn-gold{background:var(--gold);color:#2B1E00;}
.cta-bar .btn-gold:hover{background:#C99C2F;color:#2B1E00;transform:translateY(-1px);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:#C8D5E8;padding:72px 0 26px;position:relative;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(216,169,60,.65),transparent);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);color:var(--gold);}
.footer-desc{font-size:14px;line-height:1.85;color:#A9BAD4;max-width:360px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.footer-tags span{font-size:12.5px;padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.07);color:#C8D5E8;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:#C8D5E8;position:relative;transition:color .18s ease;}
.footer-col a::after{content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;background:var(--gold);transition:width .2s ease;}
.footer-col a:hover{color:#fff;}
.footer-col a:hover::after{width:100%;}
.footer-contact li{font-size:14px;color:#A9BAD4;display:flex;gap:10px;line-height:1.6;}
.footer-contact strong{color:#fff;font-weight:600;flex-shrink:0;}
.footer-bottom{
  margin-top:52px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:#8C9DB9;
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .mega-panel{width:720px;}
}
@media (max-width:1023px){
  .nav-toggle{display:flex;}
  .nav-extra{display:none;}
  .nav-close{display:flex;}
  .main-nav{
    position:fixed;top:0;left:0;right:0;bottom:0;background:#fff;z-index:300;
    padding:76px 24px 32px;transform:translateX(100%);transition:transform .28s ease;
    overflow-y:auto;display:block;
  }
  .main-nav.open{transform:translateX(0);}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0;}
  .main-nav a{height:auto;padding:15px 0;border-bottom:1px solid var(--line);font-size:16.5px;color:var(--t1);}
  .main-nav a::after{display:none;}
  .main-nav a.active{color:var(--ink);font-weight:700;}
  .mobile-cta{display:block;margin-top:26px;}
  .mobile-cta .btn{width:100%;}
  body.nav-open{overflow:hidden;}
  .hero{padding:44px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:34px;}
  .hero-visual img{height:320px;}
  .float-card{right:12px;bottom:-18px;}
  .section{padding:80px 0;}
  .section-head h2{font-size:27px;}
  .quote-grid{grid-template-columns:1fr;gap:36px;}
  .promise-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .hero{padding:32px 0 56px;}
  .hero h1{font-size:28px;}
  .hero-lead{font-size:16px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .trust-bar{grid-template-columns:1fr 1fr;gap:18px 8px;}
  .trust-bar div:nth-child(2){border-right:none;}
  .hero-visual img{height:240px;}
  .section-head.split{flex-direction:column;align-items:flex-start;}
  .section-head h2{font-size:24px;}
  .scroll-hint{display:block;}
  .form-card{padding:22px;}
  .form-grid{grid-template-columns:1fr;}
  .promise-grid{grid-template-columns:1fr;gap:16px;}
  .cta-bar{padding:56px 0;}
  .cta-inner h2{font-size:23px;}
  .cta-inner .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-q{padding:18px 20px;font-size:15.5px;}
  .faq-a div{padding:0 20px 20px;}
}
@media (max-width:420px){
  .hero h1{font-size:25px;}
  .brand-name{font-size:16px;}
  .float-card{position:static;margin-top:16px;}
}

/* roulang page: category5 */
:root{
  --ink:#17356B;
  --ink-dark:#0F2549;
  --teal:#0E7C86;
  --gold:#D8A93C;
  --bg:#F8FAFD;
  --bg-alt:#EEF3F9;
  --white:#FFFFFF;
  --t1:#1B2533;
  --t2:#566374;
  --t3:#8B96A6;
  --line:#DFE7F1;
  --line-soft:#EAF0F7;
  --ok:#1F8A5B;
  --warn:#C2611F;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh1:0 2px 4px rgba(23,53,107,.04), 0 12px 28px rgba(23,53,107,.06);
  --sh2:0 16px 36px rgba(23,53,107,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.8;color:var(--t1);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--teal)}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.section-alt{background:var(--bg-alt)}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:12px}
.sec-head p{color:var(--t2);font-size:16px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--teal);background:rgba(14,124,134,.1);padding:6px 14px;border-radius:999px;letter-spacing:.02em}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;transition:transform .18s ease,background .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease;white-space:nowrap}
.btn-primary{background:var(--ink);color:#fff;box-shadow:0 2px 4px rgba(23,53,107,.12)}
.btn-primary:hover{background:var(--ink-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:none;box-shadow:0 2px 4px rgba(23,53,107,.16)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:rgba(23,53,107,.08);color:var(--ink);transform:translateY(-1px)}
.btn-ghost:active{transform:none}
.btn-light{background:#fff;color:var(--ink);border-color:#fff}
.btn-light:hover{background:rgba(255,255,255,.88);color:var(--ink);transform:translateY(-1px)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-weight:600;font-size:15px}
.btn-text i{transition:transform .18s ease}
.btn-text:hover{color:var(--teal)}
.btn-text:hover i{transform:translateX(4px)}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:70;background:#fff;border-bottom:1px solid var(--line-soft);transition:box-shadow .25s ease}
.site-header.scrolled{box-shadow:0 2px 12px rgba(23,53,107,.06)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;transition:height .25s ease}
.site-header.scrolled .nav-wrap{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--ink),var(--teal));color:#fff;display:grid;place-items:center;font-size:15px;flex:none}
.brand-name{display:flex;flex-direction:column;line-height:1.16;font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.brand-name em{font-style:normal;font-size:11px;font-weight:500;color:var(--t3);letter-spacing:.08em}
.main-nav{display:flex;align-items:center;gap:22px;flex:1 1 auto;justify-content:center}
.main-nav ul{display:flex;align-items:center;gap:2px}
.main-nav ul a{display:block;position:relative;padding:10px 12px;font-size:15px;font-weight:500;color:var(--ink);border-radius:8px;white-space:nowrap}
.main-nav ul a::after{content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;background:var(--ink);transform:scaleX(0);transform-origin:center;transition:transform .2s ease}
.main-nav ul a:hover{background:rgba(23,53,107,.05)}
.main-nav ul a:hover::after,.main-nav ul a.active::after{transform:scaleX(1)}
.main-nav ul a.active{color:var(--ink);font-weight:700}
.mobile-cta{display:none}
.nav-close{display:none}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;color:var(--ink);align-items:center;justify-content:center;font-size:17px;background:#fff;transition:.2s}
.nav-toggle:hover{border-color:var(--ink)}
.nav-extra{display:flex;align-items:center;gap:12px;flex:none}

/* Mega 面板 */
.mega{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:10px;background:var(--bg-alt);border:1px solid var(--line);color:var(--ink);font-size:14px;font-weight:600;transition:.2s}
.mega-trigger i{font-size:11px;transition:transform .2s ease}
.mega-trigger:hover{background:#fff;border-color:var(--ink)}
.mega-panel{position:absolute;right:0;top:calc(100% + 14px);width:840px;max-width:calc(100vw - 48px);background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh2);padding:24px;display:grid;grid-template-columns:1.15fr 1fr;gap:26px;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .22s ease,transform .22s ease,visibility .22s;z-index:80}
.mega.open .mega-panel,.mega:hover .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega.open .mega-trigger i{transform:rotate(180deg)}
.mega-title{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--t3);margin-bottom:12px}
.mega-list li+li{margin-top:4px}
.mega-list a{display:flex;gap:12px;padding:10px;border-radius:10px;transition:.2s}
.mega-list a:hover{background:var(--bg-alt)}
.mega-list .mi{width:34px;height:34px;flex:none;border-radius:9px;background:rgba(23,53,107,.08);color:var(--ink);display:grid;place-items:center;font-size:13px}
.mega-list b{display:block;font-size:14px;color:var(--ink);font-weight:600}
.mega-list em{display:block;font-style:normal;font-size:12px;color:var(--t3);line-height:1.5;margin-top:2px}
.mega-card{display:flex;gap:12px;align-items:center;padding:10px;border:1px solid var(--line);border-radius:12px;transition:.2s;margin-bottom:10px}
.mega-card:hover{border-color:rgba(23,53,107,.3);box-shadow:var(--sh1)}
.mega-card img{width:64px;height:48px;object-fit:cover;border-radius:8px;background:var(--bg-alt)}
.mega-card b{display:block;font-size:14px;color:var(--ink)}
.mega-card em{display:block;font-style:normal;font-size:12px;color:var(--t3)}
.mega-news a{display:flex;justify-content:space-between;gap:12px;padding:8px 0;font-size:13px;color:var(--t2);border-bottom:1px solid var(--line-soft)}
.mega-news a:hover{color:var(--ink)}
.mega-news em{font-style:normal;color:var(--t3);font-size:12px;flex:none}

/* Hero */
.hero-help{position:relative;padding:76px 0 64px;text-align:center;overflow:hidden;background:
  radial-gradient(circle at 14% 18%, rgba(23,53,107,.06) 0 1.6px, transparent 1.6px) 0 0/28px 28px,
  radial-gradient(circle at 82% 72%, rgba(216,169,60,.10) 0 1.6px, transparent 1.6px) 0 0/34px 34px,
  linear-gradient(180deg,#fff 0%, var(--bg) 100%);
  border-bottom:1px solid var(--line-soft)}
.hero-help .container{max-width:880px}
.hero-help h1{font-size:clamp(27px,3.6vw,44px);margin:18px 0 16px;letter-spacing:-.02em}
.hero-help h1 span{color:var(--teal)}
.hero-sub{color:var(--t2);font-size:clamp(15px,1.4vw,17px);max-width:660px;margin:0 auto 30px}
.help-search{display:flex;align-items:center;gap:10px;max-width:560px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 6px 6px 20px;box-shadow:var(--sh1)}
.help-search i{color:var(--t3);font-size:15px}
.help-search input{flex:1;height:44px;border:0;background:transparent;font-size:15px;color:var(--t1);min-width:0}
.help-search input::placeholder{color:var(--t3)}
.help-search input:focus{outline:none}
.help-search .btn{height:44px;border-radius:999px;padding:0 24px}
.hot-words{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;align-items:center;margin-top:22px;font-size:13px;color:var(--t3)}
.hot-words a{color:var(--t2);background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 14px;font-size:13px;transition:.2s}
.hot-words a:hover{border-color:var(--teal);color:var(--teal);background:rgba(14,124,134,.06)}

/* 服务时效条 */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);overflow:hidden}
.stat-item{padding:26px 24px;border-right:1px solid var(--line-soft)}
.stat-item:last-child{border-right:0}
.stat-num{font-family:"Noto Serif SC",Georgia,serif;font-size:28px;font-weight:700;color:var(--ink);line-height:1.2;letter-spacing:-.02em}
.stat-num small{font-size:14px;font-weight:600;color:var(--gold);margin-right:2px}
.stat-label{font-size:14px;font-weight:600;color:var(--t1);margin-top:8px}
.stat-note{font-size:13px;color:var(--t3);margin-top:4px;line-height:1.6}

/* 帮助主体 */
.help-body{padding:80px 0 96px}
.help-grid{display:grid;grid-template-columns:266px 1fr;gap:44px;align-items:start}
.help-side{position:sticky;top:96px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:18px;box-shadow:var(--sh1)}
.side-card h3{font-size:14px;letter-spacing:.06em;color:var(--t3);font-weight:700;margin-bottom:10px;padding-left:10px}
.side-list a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;font-size:14px;color:var(--t2);border-left:3px solid transparent;transition:.2s}
.side-list a i{font-size:11px;color:var(--t3);transition:.2s}
.side-list a:hover{background:var(--bg-alt);color:var(--ink)}
.side-list a.active{background:var(--bg-alt);color:var(--ink);font-weight:700;border-left-color:var(--ink)}
.side-list a.active i,.side-list a:hover i{color:var(--teal)}
.side-help{margin-top:18px;background:rgba(14,124,134,.08);border:1px solid rgba(14,124,134,.18);border-radius:var(--r-card);padding:18px}
.side-help b{display:block;font-size:15px;color:var(--ink);margin-bottom:6px}
.side-help p{font-size:13px;color:var(--t2);line-height:1.7;margin-bottom:12px}
.side-help a.btn{height:40px;width:100%;font-size:14px;background:var(--teal);color:#fff}
.side-help a.btn:hover{background:#0b646c;color:#fff}

.faq-group{margin-bottom:44px;scroll-margin-top:100px}
.faq-group:last-child{margin-bottom:0}
.group-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.group-index{font-family:"Noto Serif SC",Georgia,serif;font-size:13px;font-weight:700;color:var(--ink-dark);background:rgba(216,169,60,.28);width:32px;height:32px;border-radius:9px;display:grid;place-items:center;flex:none}
.group-head h2{font-size:21px}
.group-head p{font-size:14px;color:var(--t3);margin-left:auto}

.faq-accordion{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);overflow:hidden}
.faq-accordion .accordion-item{border:0;background:#fff;border-bottom:1px solid var(--line-soft);transition:box-shadow .2s ease}
.faq-accordion .accordion-item:last-child{border-bottom:0}
.faq-accordion .accordion-title{display:flex;align-items:flex-start;gap:14px;padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--ink);background:#fff;border:0;line-height:1.6;transition:color .2s ease,background .2s ease}
.faq-accordion .accordion-title:hover{background:#fbfcfe;color:var(--teal)}
.faq-accordion .accordion-title::before{content:none}
.faq-ico{width:22px;height:22px;flex:none;margin-top:3px;border-radius:50%;background:rgba(23,53,107,.08);color:var(--ink);display:grid;place-items:center;font-size:10px;transition:transform .25s ease,background .25s ease,color .25s ease}
.faq-accordion .accordion-item.is-active{box-shadow:inset 3px 0 0 var(--ink)}
.faq-accordion .accordion-item.is-active .accordion-title{color:var(--ink)}
.faq-accordion .accordion-item.is-active .faq-ico{background:var(--ink);color:#fff;transform:rotate(45deg)}
.faq-accordion .accordion-content{padding:0 24px 22px 60px;border:0;background:#fff;color:var(--t2);font-size:15px;line-height:1.85}
.faq-accordion .accordion-content p+p{margin-top:10px}
.faq-accordion .accordion-content strong{color:var(--t1);font-weight:600}
.faq-accordion .accordion-content ul{margin:10px 0 0;padding:0}
.faq-accordion .accordion-content li{position:relative;padding-left:16px;margin-top:6px}
.faq-accordion .accordion-content li::before{content:"";position:absolute;left:2px;top:11px;width:5px;height:5px;border-radius:50%;background:var(--gold)}

/* 联系与工单 */
.contact-band{background:var(--bg-alt);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.contact-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:36px;align-items:center}
.contact-cards{display:grid;gap:16px}
.contact-card{background:rgba(14,124,134,.08);border:1px solid rgba(14,124,134,.2);border-radius:var(--r-card);padding:22px 24px;display:flex;gap:16px;align-items:flex-start}
.contact-card .ci{width:40px;height:40px;flex:none;border-radius:11px;background:#fff;color:var(--teal);display:grid;place-items:center;font-size:15px}
.contact-card b{display:block;font-size:16px;color:var(--ink);margin-bottom:4px}
.contact-card p{font-size:14px;color:var(--t2);line-height:1.7}
.contact-card strong{color:var(--ink);font-weight:700}
.contact-media{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:14px;box-shadow:var(--sh1)}
.contact-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);background:var(--bg-alt)}
.contact-media figcaption{font-size:13px;color:var(--t3);text-align:center;padding:12px 6px 4px;line-height:1.6}

/* 表格 */
.table-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);overflow:hidden}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.spec-table{width:100%;border-collapse:collapse;min-width:720px}
.spec-table thead th{background:var(--ink-dark);color:#fff;font-size:14px;font-weight:600;text-align:left;padding:16px 20px;letter-spacing:.02em}
.spec-table tbody td{padding:16px 20px;font-size:14.5px;color:var(--t2);border-bottom:1px solid var(--line-soft);vertical-align:top;line-height:1.7}
.spec-table tbody tr:nth-child(even){background:#fafcff}
.spec-table tbody tr:hover{background:rgba(14,124,134,.05)}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table td:first-child{color:var(--t1);font-weight:600;white-space:nowrap}
.scroll-tip{display:none;font-size:12px;color:var(--t3);text-align:center;padding:10px 0 0}
.scroll-tip i{margin-right:4px}

/* 相关帮助内容 */
.article-list{display:grid;gap:12px}
.article-row{display:flex;align-items:center;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px 24px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.article-row:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:rgba(23,53,107,.22)}
.article-row .ar-ico{width:40px;height:40px;flex:none;border-radius:11px;background:var(--bg-alt);color:var(--ink);display:grid;place-items:center;font-size:14px}
.article-row .ar-body{flex:1;min-width:0}
.article-row h3{font-size:16.5px;margin-bottom:4px}
.article-row p{font-size:13.5px;color:var(--t3)}
.article-row .ar-date{font-size:13px;color:var(--t3);flex:none}
.article-row .ar-arrow{color:var(--ink);font-size:13px;flex:none;transition:transform .2s ease}
.article-row:hover .ar-arrow{transform:translateX(4px);color:var(--teal)}

/* CTA */
.cta-band{position:relative;background:var(--ink-dark);color:#fff;padding:72px 0;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:
  radial-gradient(circle at 12% 30%, rgba(216,169,60,.28) 0 1.6px, transparent 1.6px) 0 0/30px 30px,
  radial-gradient(circle at 78% 68%, rgba(255,255,255,.18) 0 1.6px, transparent 1.6px) 0 0/36px 36px;
  opacity:.75;pointer-events:none}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:10px}
.cta-inner p{color:#C8D5E8;font-size:15px;max-width:620px}

/* 页脚 */
.site-footer{background:var(--ink-dark);color:#C8D5E8;padding:64px 0 24px;border-top:1px solid rgba(216,169,60,.35)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2b4f8f,var(--teal))}
.footer-desc{font-size:14px;line-height:1.8;color:#9FB2CC;max-width:360px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-tags span{font-size:12px;color:#C8D5E8;background:rgba(255,255,255,.08);border-radius:999px;padding:4px 12px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col ul li+li{margin-top:10px}
.footer-col a{color:#C8D5E8;font-size:14px;position:relative}
.footer-col a:hover{color:#fff;box-shadow:inset 0 -2px 0 var(--gold)}
.footer-contact li{font-size:14px;color:#9FB2CC;display:flex;gap:10px;line-height:1.7}
.footer-contact li+li{margin-top:10px}
.footer-contact strong{color:#fff;font-weight:600;flex:none}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:20px;font-size:12px;color:#8FA2BC}

/* 响应式 */
@media (max-width:1199px){
  .help-grid{grid-template-columns:230px 1fr;gap:32px}
}
@media (max-width:1023px){
  .section{padding:80px 0}
  .section-sm{padding:56px 0}
  .nav-toggle{display:inline-flex}
  .nav-close{display:grid;position:fixed;top:14px;right:16px;z-index:120;width:44px;height:44px;border-radius:10px;background:#fff;border:1px solid var(--line);color:var(--ink);place-items:center;font-size:18px}
  .main-nav{position:fixed;inset:0;z-index:110;background:#fff;flex-direction:column;align-items:stretch;justify-content:flex-start;padding:80px 24px 32px;gap:8px;overflow-y:auto;transform:translateX(102%);transition:transform .3s ease;box-shadow:var(--sh2)}
  .main-nav.open{transform:translateX(0)}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:2px;width:100%}
  .main-nav ul a{padding:14px 12px;font-size:16px;border-bottom:1px solid var(--line-soft);border-radius:0}
  .main-nav ul a::after{display:none}
  .main-nav ul a.active{color:var(--teal)}
  .mobile-cta{display:block;margin-top:20px}
  .mobile-cta .btn{width:100%}
  .mega-panel{display:none}
  .help-grid{grid-template-columns:1fr;gap:28px}
  .help-side{position:static}
  .side-card{padding:16px}
  .side-list{display:flex;flex-wrap:wrap;gap:8px}
  .side-list a{border-left:0;border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:13.5px}
  .side-list a.active{background:var(--ink);color:#fff;border-color:var(--ink)}
  .side-list a.active i,.side-list a.active:hover i{color:#fff}
  .side-help{margin-top:14px}
  .contact-grid{grid-template-columns:1fr;gap:24px}
  .contact-media{order:-1}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .nav-wrap{height:64px}
  .brand-name{font-size:16px}
  .hero-help{padding:52px 0 48px}
  .help-search{flex-wrap:wrap;border-radius:16px;padding:14px;gap:12px}
  .help-search input{width:100%;height:40px}
  .help-search .btn{width:100%;height:44px}
  .stat-strip{grid-template-columns:1fr 1fr}
  .stat-item{border-right:0;border-bottom:1px solid var(--line-soft)}
  .stat-item:nth-child(odd){border-right:1px solid var(--line-soft)}
  .stat-item:nth-last-child(-n+2){border-bottom:0}
  .help-body{padding:56px 0 64px}
  .group-head{flex-wrap:wrap}
  .group-head p{margin-left:0;width:100%}
  .faq-accordion .accordion-title{padding:18px;font-size:15.5px;gap:12px}
  .faq-accordion .accordion-content{padding:0 18px 18px 18px}
  .article-row{flex-wrap:wrap;gap:12px;padding:18px}
  .article-row .ar-date{margin-left:58px}
  .scroll-tip{display:block}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .stat-strip{grid-template-columns:1fr}
  .stat-item{border-right:0 !important;border-bottom:1px solid var(--line-soft)}
  .stat-item:last-child{border-bottom:0}
  .contact-card{flex-direction:column;gap:12px}
  .faq-accordion .accordion-title{font-size:15px}
}