/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --c-primary:#1E63D8;
  --c-primary-h:#1550B8;
  --c-tint:#E7EFFC;
  --c-accent:#F5811F;
  --c-accent-h:#DE6E10;
  --c-ink:#0F2138;
  --c-muted:#55657A;
  --c-weak:#8494A8;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-dark:#0E1B2B;
  --c-border:#E2E9F4;
  --c-border-h:#CFE0F8;
  --c-success:#17A673;
  --c-error:#D93A3A;
  --r-sm:12px;
  --r-md:14px;
  --r-lg:16px;
  --r-xl:20px;
  --r-2xl:24px;
  --r-pill:999px;
  --sh-1:0 6px 18px rgba(15,33,56,.06);
  --sh-2:0 14px 36px rgba(15,33,56,.12);
  --font-base:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
/* ============ 基础重置 & 覆盖 Foundation 默认 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-base);
  font-weight:800;
  line-height:1.25;
  letter-spacing:-0.01em;
  color:var(--c-ink);
  margin:0;
}
p{margin:0 0 1em;font-size:16px;line-height:1.75;color:var(--c-muted);}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;background:transparent;transition:color .16s ease;}
a:hover{color:var(--c-accent);}
img{display:block;max-width:100%;height:auto;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
figure{margin:0;}
button{font-family:inherit;font-size:inherit;line-height:1;border:0;background:none;cursor:pointer;padding:0;color:inherit;}
button:focus{outline:none;}
input,textarea,select{font-family:inherit;font-size:16px;color:var(--c-ink);}
table{border-collapse:collapse;width:100%;margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px;}
::selection{background:var(--c-tint);color:var(--c-primary-h);}
.button,.button:focus{outline:none;}
/* ============ 容器 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (max-width:640px){.container{padding:0 20px;}}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;line-height:1;letter-spacing:.01em;
  border:1.5px solid transparent;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(30,99,216,.22);}
.btn-primary:hover{background:var(--c-primary-h);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(30,99,216,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(30,99,216,.24);}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-border-h);}
.btn-outline:hover{background:var(--c-tint);color:var(--c-primary-h);border-color:var(--c-primary);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);}
.btn-light{background:#fff;color:var(--c-primary);box-shadow:0 10px 24px rgba(4,12,24,.18);}
.btn-light:hover{background:#F1F6FF;color:var(--c-primary-h);transform:translateY(-2px);}
.btn-light:active{transform:translateY(0);}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--c-primary);
}
.link-more .arw{display:inline-block;transition:transform .18s ease;}
.link-more:hover{color:var(--c-accent);}
.link-more:hover .arw{transform:translateX(4px);}
/* ============ 标签 / 徽章 ============ */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-tint);color:var(--c-primary);
  font-size:13px;font-weight:700;letter-spacing:.04em;
  margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-tint);color:var(--c-primary-h);
  font-size:13px;font-weight:700;line-height:1.6;
}
.badge-accent{background:#FDF0E4;color:var(--c-accent-h);}
.badge-solid{background:var(--c-accent);color:#fff;}
/* ============ 悬浮胶囊导航 ============ */
.site-header{position:sticky;top:16px;z-index:90;padding:0;}
.nav-wrap{position:relative;}
.nav-shell{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  max-width:1120px;margin:0 auto;
  padding:10px 12px 10px 16px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--c-border);
  border-radius:var(--r-pill);
  box-shadow:0 8px 24px rgba(15,33,56,.08);
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:800;font-size:16px;letter-spacing:-.01em;}
.brand:hover{color:var(--c-ink);}
.brand-mark{display:inline-flex;flex:0 0 auto;width:30px;height:30px;border-radius:9px;overflow:hidden;box-shadow:0 4px 12px rgba(30,99,216,.24);}
.brand-text{white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:2px;}
.nav-menu a{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--c-muted);
  transition:color .16s ease,background-color .16s ease;
}
.nav-menu a:hover{color:var(--c-primary);background:var(--c-tint);}
.nav-menu a.active{color:var(--c-primary);background:var(--c-tint);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-burger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--c-border);background:#fff;
  transition:background-color .16s ease,border-color .16s ease;
}
.nav-burger span{display:block;width:18px;height:2px;margin:0 auto;border-radius:2px;background:var(--c-ink);transition:transform .2s ease,opacity .2s ease;}
.nav-burger:hover{background:var(--c-tint);border-color:var(--c-border-h);}
.mobile-panel{
  display:none;position:absolute;left:24px;right:24px;top:calc(100% + 10px);
  background:#fff;border:1px solid var(--c-border);border-radius:20px;
  box-shadow:0 18px 40px rgba(15,33,56,.14);
  padding:14px;max-height:70vh;overflow:auto;z-index:95;
}
.mobile-panel a.m-link{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 14px;border-radius:12px;
  font-size:15px;font-weight:600;color:var(--c-ink);
}
.mobile-panel a.m-link:hover,.mobile-panel a.m-link.active{background:var(--c-tint);color:var(--c-primary);}
.mobile-panel .m-cta{margin-top:10px;}
body.menu-open .mobile-panel{display:block;}
body.menu-open .nav-burger span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.menu-open .nav-burger span:nth-child(2){opacity:0;}
body.menu-open .nav-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
@media (max-width:860px){
  .nav-menu{display:none;}
  .nav-actions .btn{display:none;}
  .nav-burger{display:flex;}
  .nav-shell{padding:8px 10px 8px 14px;}
  .brand-text{font-size:15px;}
}
@media (max-width:400px){
  .brand-text{font-size:13.5px;}
}
/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:64px 0 88px;
  background:linear-gradient(180deg,#F6F8FC 0%,#FFFFFF 100%);
  margin-top:-76px;
  padding-top:140px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(30,99,216,.12) 1px,transparent 1px);
  background-size:20px 20px;
  opacity:.55;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0) 78%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0) 78%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:40px;width:420px;height:420px;
  border:1.5px solid rgba(30,99,216,.14);border-radius:50%;
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.22fr 1fr;gap:56px;align-items:center;}
.hero h1{font-size:clamp(30px,4vw,46px);line-height:1.22;margin-bottom:20px;}
.hero h1 .hl{color:var(--c-primary);}
.hero-sub{font-size:17px;line-height:1.8;color:var(--c-muted);max-width:560px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;}
.hero-points li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--c-muted);font-weight:600;}
.hero-points li svg{flex:0 0 auto;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-xl);box-shadow:var(--sh-2);
}
.hero-float{
  position:absolute;left:-16px;bottom:-22px;
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);
  padding:14px 18px;box-shadow:var(--sh-2);
}
.hero-float strong{font-size:30px;font-weight:800;color:var(--c-primary);line-height:1;}
.hero-float span{font-size:13px;font-weight:700;color:var(--c-muted);}
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero{padding-top:130px;padding-bottom:64px;}
  .hero-visual{max-width:560px;}
  .hero-float{left:auto;right:12px;bottom:-18px;}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%;}
  .hero-float{padding:10px 14px;}
  .hero-float strong{font-size:24px;}
}
/* ============ 信任指标条 ============ */
.trust-bar{background:#fff;border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.trust-item{padding:34px 24px;border-right:1px solid var(--c-border);}
.trust-item:last-child{border-right:0;}
.trust-num{font-size:40px;font-weight:800;line-height:1.05;color:var(--c-primary);letter-spacing:-.02em;}
.trust-num small{font-size:16px;font-weight:700;margin-left:2px;color:var(--c-primary);}
.trust-item:nth-child(2n) .trust-num{color:var(--c-accent);}
.trust-label{margin-top:8px;font-size:14px;color:var(--c-muted);font-weight:600;}
@media (max-width:860px){
  .trust-grid{grid-template-columns:repeat(2,1fr);}
  .trust-item{border-bottom:1px solid var(--c-border);}
  .trust-item:nth-child(2n){border-right:0;}
  .trust-item:nth-child(3),.trust-item:nth-child(4){border-bottom:0;}
  .trust-num{font-size:34px;}
}
@media (max-width:520px){
  .trust-item{padding:24px 16px;}
  .trust-num{font-size:28px;}
  .trust-label{font-size:13px;}
}
/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:16px;}
.section-head p{font-size:16px;color:var(--c-muted);}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:48px;}
.section-head-row .section-head{margin-bottom:0;}
@media (max-width:1024px){.section{padding:72px 0;}}
@media (max-width:640px){.section{padding:56px 0;}.section-head{margin-bottom:32px;}}
/* ============ 功能分组 Bento ============ */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.card{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-border-h);}
.bento .card:nth-child(1){grid-column:span 6;}
.bento .card:nth-child(2){grid-column:span 3;}
.bento .card:nth-child(3){grid-column:span 3;}
.bento .card:nth-child(4),
.bento .card:nth-child(5),
.bento .card:nth-child(6){grid-column:span 4;}
.icon-box{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:13px;
  background:var(--c-tint);border:1px solid #CFE0F8;color:var(--c-primary);
  margin-bottom:18px;
}
.card h3{font-size:20px;margin-bottom:10px;}
.card p{font-size:14.5px;line-height:1.75;color:var(--c-muted);margin-bottom:18px;}
.card .link-more{margin-top:auto;}
.bento .card:nth-child(1){background:linear-gradient(160deg,#FFFFFF 0%,#F3F8FF 100%);}
@media (max-width:1024px){
  .bento .card:nth-child(1){grid-column:span 12;}
  .bento .card:nth-child(2),
  .bento .card:nth-child(3){grid-column:span 6;}
  .bento .card:nth-child(4),
  .bento .card:nth-child(5),
  .bento .card:nth-child(6){grid-column:span 6;}
}
@media (max-width:700px){
  .bento{gap:16px;}
  .bento .card:nth-child(n){grid-column:span 12;}
  .card{padding:22px;}
}
/* ============ 使用场景 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step{position:relative;padding-top:8px;}
.step-num{
  font-size:46px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px rgba(30,99,216,.42);
  margin-bottom:14px;
}
.step:nth-child(2n) .step-num{-webkit-text-stroke-color:rgba(245,129,31,.55);}
.step h3{font-size:19px;margin-bottom:10px;}
.step p{font-size:14.5px;color:var(--c-muted);margin:0;}
.step::after{
  content:"";position:absolute;top:34px;right:-12px;width:24px;height:1.5px;
  background:var(--c-border);
}
.step:last-child::after{display:none;}
@media (max-width:900px){
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .step::after{display:none;}
}
@media (max-width:560px){
  .steps{grid-template-columns:1fr;gap:0;}
  .step{padding:0 0 0 22px;border-left:1.5px solid var(--c-border);padding-bottom:26px;}
  .step:last-child{border-left-color:transparent;padding-bottom:0;}
  .step-num{font-size:34px;margin-bottom:8px;}
}
/* ============ 成功案例 ============ */
.case-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;}
.case-main{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-xl);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.case-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-border-h);}
.case-main img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.case-body{padding:26px;display:flex;flex-direction:column;gap:14px;}
.case-body h3{font-size:22px;}
.case-body p{font-size:15px;color:var(--c-muted);margin:0;}
.case-stats{display:flex;flex-wrap:wrap;gap:24px;}
.case-stats div strong{display:block;font-size:26px;font-weight:800;color:var(--c-primary);line-height:1.1;}
.case-stats div span{font-size:13px;color:var(--c-weak);font-weight:600;}
.case-quote{
  border-left:3px solid var(--c-accent);padding:2px 0 2px 14px;
  font-size:14.5px;color:var(--c-muted);
}
.case-quote cite{display:block;margin-top:6px;font-style:normal;font-size:13px;color:var(--c-weak);}
.case-side{display:grid;gap:24px;grid-auto-rows:1fr;}
.case-mini{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);display:flex;gap:16px;align-items:flex-start;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.case-mini:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-border-h);}
.case-mini img{width:84px;height:84px;border-radius:12px;object-fit:cover;flex:0 0 auto;}
.case-mini h4{font-size:17px;margin-bottom:6px;}
.case-mini p{font-size:13.5px;color:var(--c-muted);margin:0 0 8px;}
.case-mini .mini-num{font-size:14px;font-weight:800;color:var(--c-accent);}
@media (max-width:1024px){
  .case-grid{grid-template-columns:1fr;}
  .case-side{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:640px){
  .case-side{grid-template-columns:1fr;}
  .case-body{padding:22px;}
  .case-mini{flex-direction:column;}
  .case-mini img{width:100%;height:140px;}
}
/* ============ 价格方案 ============ */
.price-switch{display:inline-flex;gap:4px;padding:4px;background:#EEF3FB;border-radius:var(--r-pill);margin-bottom:36px;}
.price-switch button{
  min-height:42px;padding:0 22px;border-radius:var(--r-pill);
  font-size:14px;font-weight:700;color:var(--c-muted);
  transition:background-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.price-switch button:hover{color:var(--c-primary);}
.price-switch button.is-active{background:#fff;color:var(--c-primary);box-shadow:0 4px 12px rgba(15,33,56,.08);}
.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(--c-border);border-radius:var(--r-xl);
  padding:30px 26px;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-border-h);}
.price-card.featured{border:2px solid var(--c-primary);transform:scale(1.02);box-shadow:0 18px 40px rgba(30,99,216,.14);z-index:2;}
.price-card.featured:hover{transform:scale(1.02) translateY(-4px);}
.price-flag{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  background:var(--c-accent);color:#fff;font-size:13px;font-weight:700;
  padding:5px 16px;border-radius:var(--r-pill);white-space:nowrap;
  box-shadow:0 6px 16px rgba(245,129,31,.32);
}
.price-name{font-size:18px;font-weight:800;margin-bottom:6px;}
.price-desc{font-size:13.5px;color:var(--c-weak);margin-bottom:20px;}
.price-amount{display:flex;align-items:baseline;gap:6px;margin-bottom:22px;flex-wrap:wrap;}
.price-amount .num{font-size:40px;font-weight:800;color:var(--c-ink);line-height:1;letter-spacing:-.02em;}
.price-amount .unit{font-size:14px;font-weight:700;color:var(--c-muted);}
.price-list{display:flex;flex-direction:column;gap:12px;margin-bottom:26px;}
.price-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--c-muted);line-height:1.6;}
.price-list li svg{flex:0 0 auto;margin-top:4px;color:var(--c-success);}
.price-card .btn{margin-top:auto;}
@media (max-width:1000px){
  .price-grid{grid-template-columns:1fr;max-width:520px;}
  .price-card.featured{transform:none;}
  .price-card.featured:hover{transform:translateY(-4px);}
}
/* ============ 对比表 ============ */
.table-scroll{overflow-x:auto;margin-top:32px;border:1px solid var(--c-border);border-radius:var(--r-lg);background:#fff;}
table.compare{min-width:680px;border:0;}
table.compare th,table.compare td{
  padding:0 20px;height:52px;text-align:left;font-size:14.5px;
  border:0;border-bottom:1px solid var(--c-border);color:var(--c-muted);vertical-align:middle;
}
table.compare thead th{
  background:#F2F7FF;color:var(--c-ink);font-weight:800;font-size:14px;height:54px;
}
table.compare tbody tr:nth-child(even) td{background:#F9FBFE;}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare td:first-child{color:var(--c-ink);font-weight:700;}
table.compare td.yes{color:var(--c-success);font-weight:700;}
table.compare td.no{color:var(--c-weak);}
/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);color:inherit;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-border-h);color:inherit;}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-tint);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{
  font-size:18px;line-height:1.45;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body .excerpt{
  font-size:14px;color:var(--c-muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:12px;border-top:1px solid var(--c-border);
  font-size:13px;color:var(--c-weak);font-weight:600;
}
.news-meta .read{color:var(--c-primary);font-weight:700;}
.news-empty{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:56px 24px;background:#fff;
  border:1px dashed var(--c-border);border-radius:var(--r-lg);color:var(--c-muted);
}
.news-empty svg{color:var(--c-weak);}
.news-empty p{margin:0;font-size:15px;}
@media (max-width:1024px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.news-grid{grid-template-columns:1fr;}}
/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px;}
.faq-item{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;}
.faq-item:hover{border-color:var(--c-border-h);}
.faq-item.is-open{border-color:var(--c-border-h);box-shadow:0 10px 26px rgba(15,33,56,.08);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  min-height:60px;padding:16px 22px;text-align:left;
  font-size:16px;font-weight:700;color:var(--c-ink);
  transition:color .16s ease;
}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{
  position:relative;flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  background:var(--c-tint);transition:background-color .18s ease,transform .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);transition:opacity .18s ease,background-color .18s ease;
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;}
.faq-item.is-open .faq-icon{background:var(--c-primary);transform:rotate(180deg);}
.faq-item.is-open .faq-icon::before,
.faq-item.is-open .faq-icon::after{background:#fff;}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{display:none;padding:0 22px 20px 22px;}
.faq-item.is-open .faq-a{display:block;}
.faq-a p{
  margin:0;font-size:15px;line-height:1.85;color:var(--c-muted);
  border-left:3px solid var(--c-primary);padding-left:14px;
}
/* ============ 结尾 CTA ============ */
.cta-wrap{padding:0 0 96px;}
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-dark);border-radius:var(--r-2xl);
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:40px;
  box-shadow:0 24px 60px rgba(14,27,43,.24);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:20px 20px;opacity:.35;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-140px;width:320px;height:320px;
  border:1.5px solid rgba(255,255,255,.14);border-radius:50%;pointer-events:none;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:10px;}
.cta-band p{color:#B9C6D6;font-size:15px;margin:0;max-width:560px;}
@media (max-width:820px){
  .cta-band{flex-direction:column;align-items:flex-start;text-align:left;padding:34px 26px;gap:24px;}
  .cta-wrap{padding-bottom:64px;}
}
/* ============ 页脚 ============ */
.site-footer{background:var(--c-dark);color:#B9C6D6;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff;font-weight:800;font-size:16px;}
.footer-brand:hover{color:#fff;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-about{font-size:14px;line-height:1.85;color:#B9C6D6;margin:0 0 18px;max-width:320px;}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:14px;color:#B9C6D6;}
.footer-contact span strong{color:#fff;font-weight:700;margin-right:8px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:800;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:#B9C6D6;transition:color .16s ease,transform .16s ease;display:inline-block;}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.qr-box{
  width:120px;height:120px;border-radius:14px;background:#16283C;
  border:1px solid #23374E;display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12.5px;color:#8494A8;line-height:1.6;padding:10px;
  margin-bottom:14px;
}
.footer-note{font-size:13px;color:#8494A8;line-height:1.7;margin:0;}
.footer-bottom{
  border-top:1px solid #1B2E44;padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;justify-content:space-between;
  font-size:13px;color:#8494A8;
}
.footer-bottom p{margin:0;font-size:13px;color:#8494A8;}
.footer-bottom a{color:#B9C6D6;font-size:13px;}
.footer-bottom a:hover{color:#fff;}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:640px){
  .site-footer{padding-top:52px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .footer-note{max-width:320px;}
}
/* ============ 可访问性 & 动效减弱 ============ */
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --c-primary:#1E63D8;
  --c-primary-hover:#1550B8;
  --c-primary-tint:#E7EFFC;
  --c-accent:#F5811F;
  --c-accent-hover:#DE6E10;
  --c-ink:#0F2138;
  --c-muted:#55657A;
  --c-weak:#8494A8;
  --c-bg:#F6F8FC;
  --c-surface:#FFFFFF;
  --c-dark:#0E1B2B;
  --c-border:#E2E9F4;
  --c-border-strong:#CFE0F8;
  --c-success:#17A673;
  --c-error:#D93A3A;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-img:14px;
  --radius-btn:999px;
  --radius-input:12px;
  --shadow-1:0 6px 18px rgba(15,33,56,.06);
  --shadow-2:0 14px 36px rgba(15,33,56,.12);
  --container:1200px;
  --font-base:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-base);
  color:var(--c-ink);
  font-weight:700;
  letter-spacing:-0.01em;
  line-height:1.25;
  margin:0 0 16px;
}
p{margin:0 0 16px;line-height:1.75;color:var(--c-muted);}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
a:hover{color:var(--c-primary-hover);}
img{max-width:100%;height:auto;display:block;}
ul,ol{margin:0 0 16px;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(30,99,216,.45);outline-offset:2px;border-radius:6px;}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:40px;}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  margin-bottom:12px;
}
.section-head p{max-width:720px;font-size:15px;color:var(--c-muted);margin:0;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:16px;
  z-index:60;
  padding:0 20px;
}
.nav-shell{
  max-width:1120px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:20px;
  padding:10px 12px 10px 18px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--c-border);
  border-radius:var(--radius-btn);
  box-shadow:0 8px 24px rgba(15,33,56,.08);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--c-ink);
  font-weight:800;
  font-size:16px;
  letter-spacing:-0.01em;
}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  display:inline-flex;
  width:32px;
  height:32px;
  border-radius:9px;
  overflow:hidden;
  flex-shrink:0;
  box-shadow:0 4px 12px rgba(30,99,216,.24);
}
.brand-text{white-space:nowrap;}
.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-menu a{
  display:inline-block;
  padding:9px 15px;
  min-height:40px;
  line-height:22px;
  font-size:14.5px;
  font-weight:600;
  color:var(--c-muted);
  border-radius:var(--radius-btn);
  white-space:nowrap;
  transition:color .1s ease,background-color .1s ease;
}
.nav-menu a:hover{color:var(--c-primary);background:var(--c-primary-tint);}
.nav-menu a.active{
  color:var(--c-primary);
  background:var(--c-primary-tint);
  box-shadow:inset 0 -2px 0 0 var(--c-primary);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--c-border);
  border-radius:12px;
  background:#fff;
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggle span{
  display:block;
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--c-ink);
  transition:transform .18s ease,opacity .18s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:12px 24px;
  font-size:15px;
  font-weight:700;
  border-radius:var(--radius-btn);
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  text-align:center;
}
.btn-primary{
  background:var(--c-primary);
  color:#fff;
  box-shadow:0 8px 20px rgba(30,99,216,.22);
}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(30,99,216,.28);}
.btn-primary:active{transform:translateY(0);background:var(--c-primary-hover);}
.btn-ghost{
  background:#fff;
  color:var(--c-primary);
  border-color:var(--c-border-strong);
}
.btn-ghost:hover{background:var(--c-primary-tint);border-color:var(--c-primary);color:var(--c-primary-hover);}
.btn-accent{
  background:var(--c-accent);
  color:#fff;
  box-shadow:0 8px 20px rgba(245,129,31,.24);
}
.btn-accent:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-1px);}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px;}

/* ============ 面包屑 ============ */
.crumb-bar{
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  padding:22px 0 18px;
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-weak);
  margin:0;
}
.crumb a{color:var(--c-muted);font-weight:500;}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#C3D0E2;}
.crumb .current{color:var(--c-ink);font-weight:600;}

/* ============ 文章头部 ============ */
.article-hero{
  background:linear-gradient(180deg,#F6F8FC 0%,#FFFFFF 100%);
  padding:48px 0 40px;
  border-bottom:1px solid var(--c-border);
}
.article-hero-inner{max-width:900px;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  font-size:13px;
  font-weight:700;
  border-radius:var(--radius-btn);
  background:var(--c-primary-tint);
  color:var(--c-primary);
  letter-spacing:0;
}
.badge-accent{background:rgba(245,129,31,.12);color:var(--c-accent-hover);}
.article-hero h1{
  font-size:clamp(28px,3.6vw,42px);
  font-weight:800;
  line-height:1.28;
  margin:18px 0 20px;
  letter-spacing:-0.015em;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 18px;
  font-size:13px;
  color:var(--c-weak);
  padding-top:16px;
  border-top:1px solid var(--c-border);
  margin:0;
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3D0E2;display:inline-block;}

/* ============ 正文布局 ============ */
.article-section{padding:56px 0 72px;background:var(--c-surface);}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,780px) 260px;
  gap:56px;
  justify-content:center;
  align-items:start;
}
.article-main{min-width:0;}
.article-body{
  font-size:17px;
  line-height:1.9;
  color:#2A3B52;
  word-break:break-word;
}
.article-body p{
  font-size:17px;
  line-height:1.9;
  color:#2A3B52;
  margin:0 0 1.2em;
}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2.4vw,26px);
  font-weight:800;
  color:var(--c-ink);
  margin:2em 0 .8em;
  padding-left:16px;
  line-height:1.35;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.24em;
  bottom:.24em;
  width:4px;
  border-radius:4px;
  background:var(--c-primary);
}
.article-body h3{
  font-size:20px;
  font-weight:700;
  color:var(--c-ink);
  margin:1.7em 0 .7em;
  line-height:1.4;
}
.article-body h4{
  font-size:17px;
  font-weight:700;
  color:var(--c-ink);
  margin:1.4em 0 .6em;
}
.article-body ul,
.article-body ol{
  margin:0 0 1.3em;
  padding-left:6px;
}
.article-body ul li,
.article-body ol li{
  position:relative;
  padding-left:22px;
  margin-bottom:.6em;
  font-size:17px;
  line-height:1.85;
  color:#2A3B52;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:4px;
  top:.72em;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--c-primary);
}
.article-body ol{counter-reset:li;}
.article-body ol li{counter-increment:li;}
.article-body ol li::before{
  content:counter(li);
  position:absolute;
  left:0;
  top:.55em;
  width:18px;
  height:18px;
  border-radius:50%;
  background:var(--c-primary-tint);
  color:var(--c-primary);
  font-size:12px;
  font-weight:800;
  line-height:18px;
  text-align:center;
  font-family:var(--font-base);
}
.article-body img{
  border-radius:var(--radius-img);
  margin:1.6em auto;
  width:100%;
  box-shadow:var(--shadow-1);
}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{
  font-size:13px;
  color:var(--c-weak);
  text-align:center;
  margin-top:10px;
}
.article-body blockquote{
  margin:1.6em 0;
  padding:20px 24px;
  background:var(--c-primary-tint);
  border-left:4px solid var(--c-primary);
  border-radius:0 12px 12px 0;
  color:#1C3555;
  font-size:16.5px;
  line-height:1.85;
}
.article-body blockquote p{color:#1C3555;margin:0;font-size:16.5px;}
.article-body a{
  color:var(--c-primary);
  border-bottom:1px solid rgba(30,99,216,.35);
  font-weight:600;
}
.article-body a:hover{color:var(--c-accent-hover);border-bottom-color:var(--c-accent);}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:15px;
}
.article-body table th,
.article-body table td{
  padding:12px 14px;
  border-bottom:1px solid var(--c-border);
  text-align:left;
  color:#2A3B52;
}
.article-body table th{background:rgba(30,99,216,.05);font-weight:700;color:var(--c-ink);}
.article-body hr{border:0;border-top:1px solid var(--c-border);margin:2em 0;}

/* ============ 目录 ============ */
.toc-desktop{
  position:sticky;
  top:100px;
  background:var(--c-bg);
  border:1px solid var(--c-border);
  border-radius:var(--radius-card);
  padding:20px 20px 16px;
}
.toc-title{
  font-size:13px;
  font-weight:800;
  letter-spacing:.08em;
  color:var(--c-weak);
  text-transform:uppercase;
  margin:0 0 12px;
}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;
  padding:7px 10px;
  font-size:13.5px;
  line-height:1.5;
  color:var(--c-muted);
  border-radius:8px;
  border-left:2px solid transparent;
  transition:color .16s ease,background-color .16s ease,border-color .16s ease;
}
.toc-list a.level-3{padding-left:22px;font-size:13px;color:var(--c-weak);}
.toc-list a:hover{color:var(--c-primary);background:#fff;}
.toc-list a.is-active{
  color:var(--c-primary);
  background:#fff;
  border-left-color:var(--c-primary);
  font-weight:700;
  box-shadow:var(--shadow-1);
}
.toc-mobile{
  display:none;
  margin-bottom:28px;
  background:var(--c-bg);
  border:1px solid var(--c-border);
  border-radius:var(--radius-card);
  padding:4px 18px;
}
.toc-mobile summary{
  cursor:pointer;
  list-style:none;
  padding:16px 0;
  font-size:15px;
  font-weight:700;
  color:var(--c-ink);
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:44px;
}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile summary::after{
  content:"+";
  font-size:20px;
  font-weight:700;
  color:var(--c-primary);
  line-height:1;
}
.toc-mobile[open] summary::after{content:"−";}
.toc-mobile .toc-list{padding-bottom:14px;}

/* ============ 文章尾部操作 ============ */
.article-foot{
  margin-top:44px;
  padding-top:28px;
  border-top:1px solid var(--c-border);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
}
.postnav{
  margin-top:24px;
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}
.postnav a{
  display:block;
  padding:18px 20px;
  background:var(--c-bg);
  border:1px solid var(--c-border);
  border-radius:var(--radius-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.postnav a:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
  border-color:var(--c-border-strong);
}
.postnav .nav-label{
  display:block;
  font-size:12.5px;
  font-weight:700;
  color:var(--c-weak);
  letter-spacing:.06em;
  margin-bottom:6px;
}
.postnav .nav-text{
  display:block;
  font-size:15.5px;
  font-weight:700;
  color:var(--c-ink);
  line-height:1.5;
}
.postnav a:hover .nav-text{color:var(--c-primary);}

/* ============ 相关推荐 ============ */
.related-section{
  background:var(--c-bg);
  padding:72px 0 88px;
  border-top:1px solid var(--c-border);
}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:var(--c-border-strong);
}
.post-card-thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--c-primary-tint);
}
.post-card-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.post-card:hover .post-card-thumb img{transform:scale(1.04);}
.post-card-body{
  padding:20px 22px 22px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.post-card-body h3{
  font-size:17.5px;
  font-weight:700;
  line-height:1.5;
  margin:12px 0 10px;
  color:var(--c-ink);
}
.post-card-body p{
  font-size:14px;
  line-height:1.7;
  color:var(--c-muted);
  margin:0 0 18px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:var(--c-weak);
  padding-top:14px;
  border-top:1px solid var(--c-border);
}
.post-card-foot .more{color:var(--c-primary);font-weight:700;}
.post-card:hover .post-card-foot .more{color:var(--c-accent-hover);}

/* ============ 空态 ============ */
.empty-state{
  max-width:640px;
  margin:0 auto;
  text-align:center;
  padding:64px 32px;
  background:var(--c-bg);
  border:1px dashed var(--c-border-strong);
  border-radius:var(--radius-lg);
}
.empty-state .empty-icon{
  width:56px;
  height:56px;
  border-radius:16px;
  background:var(--c-primary-tint);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
  color:var(--c-primary);
  font-size:24px;
  font-weight:800;
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{font-size:15px;margin-bottom:24px;}

/* ============ CTA 条 ============ */
.cta-section{padding:0 0 96px;background:var(--c-bg);}
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--c-dark);
  border-radius:24px;
  padding:48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  color:#fff;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-80px;
  width:320px;
  height:320px;
  border-radius:50%;
  border:1.5px solid rgba(255,255,255,.10);
  pointer-events:none;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:20px;
  bottom:-140px;
  width:280px;
  height:280px;
  border-radius:50%;
  border:1.5px solid rgba(255,255,255,.07);
  pointer-events:none;
}
.cta-band h2{
  color:#fff;
  font-size:clamp(22px,2.8vw,30px);
  margin:0 0 10px;
  position:relative;
  z-index:1;
}
.cta-band p{
  color:#B9C6D6;
  margin:0;
  font-size:15px;
  max-width:560px;
  position:relative;
  z-index:1;
}
.cta-band .btn{position:relative;z-index:1;background:#fff;color:var(--c-primary);flex-shrink:0;}
.cta-band .btn:hover{background:var(--c-primary-tint);color:var(--c-primary-hover);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-dark);
  color:#B9C6D6;
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin:0 0 18px;
  letter-spacing:.02em;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:800;
  font-size:16px;
  margin-bottom:18px;
}
.footer-brand:hover{color:#fff;}
.footer-about{
  font-size:14px;
  line-height:1.8;
  color:#9FB0C4;
  margin:0 0 22px;
  max-width:360px;
}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:#9FB0C4;}
.footer-contact strong{color:#fff;font-weight:700;margin-right:8px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;margin:0;padding:0;}
.footer-col ul a{
  color:#B9C6D6;
  font-size:14px;
  transition:color .18s ease,padding-left .18s ease;
}
.footer-col ul a:hover{color:#fff;padding-left:4px;}
.qr-box{
  width:132px;
  height:132px;
  border-radius:14px;
  border:1px dashed rgba(185,198,214,.4);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:12.5px;
  line-height:1.7;
  color:#8FA2B8;
  margin-bottom:14px;
  background:rgba(255,255,255,.03);
}
.footer-note{font-size:13px;line-height:1.75;color:#8FA2B8;margin:0;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 28px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
}
.footer-bottom p{margin:0;font-size:13px;color:#8FA2B8;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .toc-desktop{display:none;}
  .toc-mobile{display:block;}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-band{padding:40px;}
}
@media (max-width:768px){
  .site-header{top:8px;padding:0 12px;}
  .nav-shell{padding:8px 10px 8px 14px;border-radius:22px;flex-wrap:wrap;gap:10px;}
  .brand{font-size:15px;}
  .nav-toggle{display:flex;}
  .nav-actions{margin-left:auto;}
  .nav-actions .btn-sm{display:none;}
  .nav-menu{
    display:none;
    order:5;
    flex-basis:100%;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    margin:6px 0 0;
    padding:10px;
    background:#fff;
    border:1px solid var(--c-border);
    border-radius:20px;
    max-height:70vh;
    overflow-y:auto;
    box-shadow:var(--shadow-2);
    width:100%;
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu a{
    display:flex;
    align-items:center;
    min-height:48px;
    border-radius:14px;
    font-size:15px;
    padding:10px 16px;
  }
  .nav-menu a.active{box-shadow:none;}
  .section{padding:56px 0;}
  .article-hero{padding:32px 0 28px;}
  .article-section{padding:36px 0 56px;}
  .article-body,
  .article-body p,
  .article-body ul li,
  .article-body ol li{font-size:16px;line-height:1.85;}
  .article-body h3{font-size:18px;}
  .postnav{grid-template-columns:minmax(0,1fr);}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .related-section{padding:56px 0 64px;}
  .cta-section{padding:0 0 64px;}
  .cta-band{flex-direction:column;align-items:flex-start;text-align:left;padding:32px 26px;border-radius:20px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .site-footer{padding-top:56px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .article-hero h1{font-size:26px;}
  .article-meta{gap:6px 12px;font-size:12.5px;}
  .post-card-body{padding:18px 18px 20px;}
  .btn{width:100%;}
  .article-foot .btn{width:100%;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
}

/* roulang page: category1 */
:root{
  --c-primary:#1E63D8;
  --c-primary-hover:#1550B8;
  --c-tint:#E7EFFC;
  --c-accent:#F5811F;
  --c-accent-hover:#DE6E10;
  --c-ink:#0F2138;
  --c-muted:#55657A;
  --c-weak:#8494A8;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-dark:#0E1B2B;
  --c-border:#E2E9F4;
  --c-border-strong:#CFE0F8;
  --c-success:#17A673;
  --c-error:#D93A3A;
  --r-card:16px;
  --r-lg:20px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 6px 18px rgba(15,33,56,.06);
  --sh-2:0 14px 36px rgba(15,33,56,.12);
  --gap:24px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .16s ease;}
a:hover,a:focus{color:var(--c-primary-hover);}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0 0 16px;font-weight:800;letter-spacing:-0.01em;line-height:1.25;color:var(--c-ink);}
h1{font-size:clamp(30px,4vw,46px);}
h2{font-size:clamp(24px,3vw,34px);}
h3{font-size:21px;}
h4{font-size:17px;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:3px solid rgba(30,99,216,.38);
  outline-offset:2px;
}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--c-muted);font-size:16px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:var(--c-tint);
  color:var(--c-primary);
  font-size:13px;
  font-weight:700;
  letter-spacing:.02em;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.hl{color:var(--c-primary);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  padding:16px 0 0;
  pointer-events:none;
}
.site-header::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:110px;
  background:linear-gradient(180deg,rgba(246,248,252,.94),rgba(246,248,252,0));
  z-index:0;
}
.nav-shell{
  position:relative;
  z-index:1;
  pointer-events:auto;
  max-width:1120px;
  margin:0 auto;
  padding:10px 14px 10px 18px;
  display:flex;
  align-items:center;
  gap:16px;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid var(--c-border);
  border-radius:var(--r-pill);
  box-shadow:0 8px 24px rgba(15,33,56,.08);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:16px;
  color:var(--c-ink);
  letter-spacing:-0.01em;
  white-space:nowrap;
}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  display:inline-flex;
  width:32px;height:32px;
  border-radius:10px;
  overflow:hidden;
  flex:0 0 auto;
}
.nav-links{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:2px;
}
.nav-menu a{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  color:var(--c-muted);
  white-space:nowrap;
  transition:color .16s ease,background-color .16s ease;
}
.nav-menu a:hover{color:var(--c-primary);background:rgba(231,239,252,.78);}
.nav-menu a.active{
  color:var(--c-primary);
  background:var(--c-tint);
  box-shadow:inset 0 -2px 0 var(--c-primary);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:42px;
  padding:0 22px;
  margin-left:8px;
  border-radius:var(--r-pill);
  background:var(--c-primary);
  color:#fff;
  font-size:15px;
  font-weight:700;
  box-shadow:0 6px 16px rgba(30,99,216,.24);
  transition:background-color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.nav-cta:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(30,99,216,.3);}
.nav-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:44px;height:44px;
  border:1px solid var(--c-border);
  border-radius:14px;
  background:#fff;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:20px;height:2px;
  border-radius:2px;
  background:var(--c-ink);
  transition:transform .2s ease,opacity .2s ease;
}
.nav-shell.open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-shell.open .nav-toggle span:nth-child(2){opacity:0;}
.nav-shell.open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:16px;
  font-weight:700;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(30,99,216,.22);}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(30,99,216,.28);}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-border-strong);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-hover);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px rgba(245,129,31,.24);}
.btn-accent:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-2px);}
.btn:active{transform:translateY(0);}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:26px 0 76px;
  background:linear-gradient(180deg,#F6F8FC 0%,#FFFFFF 100%);
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(30,99,216,.22) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.12;
  pointer-events:none;
}
.hero .container{position:relative;z-index:1;}
.hero h1{margin-bottom:18px;}
.hero-lead{font-size:18px;color:var(--c-muted);max-width:520px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 26px;}
.hero-points li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-muted);
  font-weight:600;
}
.hero-points li::before{
  content:"";
  width:16px;height:16px;
  border-radius:50%;
  background:var(--c-tint) url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.4l2.6 2.6L12 5.4' fill='none' stroke='%231E63D8' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px 14px no-repeat;
  flex:0 0 auto;
}
.hero-figure{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-2);
}
.hero-figure img{width:100%;height:380px;object-fit:cover;}
.float-card{
  position:absolute;
  left:18px;bottom:18px;
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 18px;
  background:#fff;
  border-radius:var(--r-md);
  box-shadow:var(--sh-2);
}
.float-card .num{
  font-size:28px;
  font-weight:800;
  color:var(--c-primary);
  line-height:1;
}
.float-card .txt{font-size:13px;color:var(--c-muted);font-weight:600;}

/* ============ 指标条 ============ */
.metrics{
  background:#fff;
  border-top:1px solid var(--c-border);
  border-bottom:1px solid var(--c-border);
}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.metric{
  padding:32px 24px;
  border-right:1px solid var(--c-border);
}
.metric:last-child{border-right:0;}
.metric .num{
  display:block;
  font-size:clamp(32px,3.4vw,44px);
  font-weight:800;
  letter-spacing:-0.02em;
  color:var(--c-primary);
  line-height:1.1;
  margin-bottom:6px;
}
.metric:nth-child(2) .num{color:var(--c-accent);}
.metric .label{font-size:14px;color:var(--c-muted);font-weight:600;}

/* ============ 交替图文 ============ */
.zone-list{display:flex;flex-direction:column;gap:64px;}
.zone{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:48px;
  align-items:center;
}
.zone.reverse .zone-media{order:2;}
.zone-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.zone-media img{width:100%;height:340px;object-fit:cover;}
.zone-body h3{margin-bottom:12px;}
.zone-body > p{color:var(--c-muted);margin-bottom:20px;}
.zone-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 13px;
  border-radius:var(--r-pill);
  background:var(--c-tint);
  color:var(--c-primary);
  font-size:13px;
  font-weight:700;
}
.tag.orange{background:rgba(245,129,31,.12);color:var(--c-accent-hover);}
.zone-facts{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:14px 24px;
  padding:22px 24px;
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
}
.zone-facts li{font-size:14px;color:var(--c-muted);}
.zone-facts strong{display:block;font-size:15px;color:var(--c-ink);font-weight:700;margin-bottom:2px;}

/* ============ 规格表 ============ */
.spec-section{background:#fff;border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);}
.table-wrap{overflow-x:auto;border-radius:var(--r-card);border:1px solid var(--c-border);box-shadow:var(--sh-1);}
table.spec-table{
  width:100%;
  min-width:820px;
  border-collapse:collapse;
  margin:0;
  border:0;
  background:#fff;
  font-size:15px;
}
table.spec-table thead th{
  background:rgba(30,99,216,.06);
  color:var(--c-ink);
  font-weight:700;
  font-size:14px;
  text-align:left;
  padding:16px 20px;
  border:0;
  border-bottom:1px solid var(--c-border);
  white-space:nowrap;
}
table.spec-table tbody td{
  padding:18px 20px;
  border:0;
  border-bottom:1px solid var(--c-border);
  color:var(--c-muted);
  vertical-align:middle;
  line-height:1.6;
}
table.spec-table tbody td:first-child{color:var(--c-ink);font-weight:700;white-space:nowrap;}
table.spec-table tbody tr:nth-child(even){background:#F9FBFE;}
table.spec-table tbody tr:last-child td{border-bottom:0;}
table.spec-table tbody tr:hover{background:rgba(231,239,252,.5);}
.spec-note{margin-top:16px;font-size:14px;color:var(--c-weak);}

/* ============ 流程 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:var(--gap);
  counter-reset:step;
}
.step{
  position:relative;
  padding:28px 24px;
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-border-strong);}
.step .num{
  display:block;
  font-size:34px;
  font-weight:800;
  letter-spacing:-0.03em;
  color:transparent;
  -webkit-text-stroke:1.4px rgba(30,99,216,.55);
  line-height:1;
  margin-bottom:14px;
}
.step:nth-child(2) .num{-webkit-text-stroke:1.4px rgba(245,129,31,.6);}
.step h4{margin-bottom:8px;font-size:17px;}
.step p{font-size:14px;color:var(--c-muted);}

/* ============ FAQ ============ */
.faq-section{background:#fff;border-top:1px solid var(--c-border);}
.faq-list{max-width:820px;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:var(--c-border-strong);}
.faq-item.open{border-color:var(--c-border-strong);box-shadow:var(--sh-2);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  background:none;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--c-ink);
  cursor:pointer;
}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid var(--c-border-strong);
  background:#fff;
  transition:background-color .18s ease,border-color .18s ease,transform .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  width:11px;height:1.8px;
  background:var(--c-primary);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .2s ease,background-color .18s ease;
}
.faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);}
.faq-item.open .faq-icon{background:var(--c-tint);border-color:var(--c-primary);}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(0deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-item.open .faq-a{max-height:340px;}
.faq-a-inner{
  padding:0 24px 22px 24px;
  margin-left:0;
  border-left:0;
}
.faq-a-inner p{
  position:relative;
  padding-left:16px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-muted);
  margin:0;
}
.faq-a-inner p::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:3px;
  border-radius:3px;
  background:var(--c-primary);
}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  padding:48px;
  background:var(--c-dark);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:320px;height:320px;
  border-radius:50%;
  border:1.5px solid rgba(255,255,255,.12);
  pointer-events:none;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.35) 1px,transparent 1px);
  background-size:20px 20px;
  opacity:.1;
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:640px;}
.cta-copy h2{color:#fff;margin-bottom:12px;}
.cta-copy p{color:#B9C6D6;font-size:16px;margin:0;}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;}
.cta-actions .btn-white{background:#fff;color:var(--c-primary);box-shadow:0 10px 24px rgba(0,0,0,.18);}
.cta-actions .btn-white:hover{background:#F2F6FE;color:var(--c-primary-hover);transform:translateY(-2px);}
.cta-actions .btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.36);}
.cta-actions .btn-line:hover{border-color:#fff;color:#fff;transform:translateY(-2px);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-dark);
  color:#B9C6D6;
  padding:72px 0 28px;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:48px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand:hover{color:#fff;}
.footer-about{font-size:14px;line-height:1.8;color:#B9C6D6;margin-bottom:20px;}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:14px;color:#B9C6D6;}
.footer-contact strong{color:#fff;font-weight:700;margin-right:8px;}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:#B9C6D6;transition:color .16s ease;}
.footer-col ul a:hover{color:#fff;}
.qr-box{
  width:132px;
  height:132px;
  border-radius:var(--r-md);
  border:1px dashed rgba(255,255,255,.24);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:13px;
  line-height:1.6;
  color:#93A3B6;
  padding:12px;
  margin-bottom:16px;
}
.footer-note{font-size:13px;line-height:1.75;color:#8494A8;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px 24px;
  padding-top:24px;
  font-size:13px;
  color:#8494A8;
}
.footer-bottom p{margin:0;}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .section{padding:72px 0;}
  .hero{padding:20px 0 56px;}
  .hero-figure img{height:320px;}
  .zone{gap:32px;grid-template-columns:1fr 1fr;}
  .zone-media img{height:280px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(2){border-right:0;}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--c-border);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-band{padding:36px;}
}
@media screen and (max-width:768px){
  .nav-shell{flex-wrap:wrap;padding:10px 12px 10px 14px;}
  .nav-toggle{display:flex;}
  .nav-links{
    display:none;
    width:100%;
    margin-left:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    position:absolute;
    top:calc(100% + 10px);
    left:0;right:0;
    background:#fff;
    border:1px solid var(--c-border);
    border-radius:20px;
    box-shadow:var(--sh-2);
    padding:10px;
    max-height:70vh;
    overflow-y:auto;
  }
  .nav-shell.open .nav-links{display:flex;}
  .nav-menu{flex-direction:column;align-items:stretch;gap:2px;}
  .nav-menu a{
    height:48px;
    width:100%;
    padding:0 16px;
    justify-content:flex-start;
    font-size:15px;
    border-radius:14px;
    box-shadow:none;
  }
  .nav-menu a.active{box-shadow:inset 3px 0 0 var(--c-primary);}
  .nav-cta{width:100%;height:48px;margin:8px 0 0;border-radius:14px;}
  .hero{padding:16px 0 48px;}
  .hero-figure{margin-top:32px;}
  .hero-figure img{height:260px;}
  .hero-lead{font-size:16px;}
  .zone{grid-template-columns:1fr;gap:24px;}
  .zone.reverse .zone-media{order:0;}
  .zone-media img{height:240px;}
  .zone-facts{grid-template-columns:1fr;}
  .zone-list{gap:48px;}
  .steps{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 26px;text-align:left;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .site-footer{padding:56px 0 24px;margin-top:72px;}
  .footer-bottom{flex-direction:column;}
}
@media screen and (max-width:520px){
  .container{padding:0 20px;}
  .hero-actions .btn{width:100%;}
  .hero-points{gap:10px 18px;}
  .float-card{padding:10px 14px;left:12px;bottom:12px;}
  .float-card .num{font-size:24px;}
  .metric{padding:24px 18px;}
  .faq-q{padding:18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 20px 18px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1E63D8;
  --c-primary-h:#1550B8;
  --c-tint:#E7EFFC;
  --c-accent:#F5811F;
  --c-accent-h:#DE6E10;
  --c-accent-soft:#FDEEDF;
  --c-ink:#0F2138;
  --c-muted:#55657A;
  --c-weak:#8494A8;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-dark:#0E1B2B;
  --c-line:#E2E9F4;
  --c-line-strong:#CFE0F8;
  --c-success:#17A673;
  --c-error:#D93A3A;
  --r-card:16px;
  --r-lg:20px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 6px 18px rgba(15,33,56,.06);
  --sh-2:0 14px 36px rgba(15,33,56,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,form{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(30,99,216,.45);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-alt{background:#FFFFFF}
.section-head{max-width:740px;margin-bottom:40px}
.section-head h2{margin:14px 0 12px}
.section-head p{color:var(--c-muted);font-size:16px;line-height:1.8}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.03em;
  color:var(--c-primary);background:var(--c-tint);
  border-radius:var(--r-pill);padding:6px 14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent)}
h1{font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(24px,3vw,34px);line-height:1.28;font-weight:800;letter-spacing:-.01em}
h3{font-size:20px;line-height:1.4;font-weight:700}
h4{font-size:16px;font-weight:700}
p{line-height:1.8}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:background .18s,color .18s,border-color .18s,box-shadow .18s,transform .18s;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(30,99,216,.22)}
.btn-primary:hover{background:var(--c-primary-h);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-line-strong)}
.btn-ghost:hover{background:var(--c-tint);border-color:var(--c-primary)}
.btn-light{background:#fff;color:var(--c-primary)}
.btn-light:hover{background:#F0F5FF;color:var(--c-primary-h)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}

/* ===== 悬浮胶囊导航 ===== */
.site-header{position:sticky;top:0;z-index:120;padding:16px 0 0}
.nav-shell{
  position:relative;
  max-width:1120px;margin:0 auto;
  display:flex;align-items:center;gap:16px;
  padding:10px 12px 10px 20px;
  background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  box-shadow:0 8px 24px rgba(15,33,56,.08);
  margin-left:24px;margin-right:24px;
}
@media(min-width:1160px){.nav-shell{margin-left:auto;margin-right:auto}}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.01em;color:var(--c-ink);flex:0 0 auto}
.brand-mark{display:inline-flex;flex:0 0 auto}
.nav-menu{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-menu a{
  display:inline-flex;align-items:center;min-height:40px;
  padding:0 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--c-muted);
  transition:color .15s,background .15s;
}
.nav-menu a:hover{color:var(--c-primary);background:#F1F6FE}
.nav-menu a.active{color:var(--c-primary);background:var(--c-tint);font-weight:700}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--c-line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#F6F8FC 0%,#FFFFFF 100%);
  padding:56px 0 72px;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(30,99,216,.16) 1px,transparent 1px);
  background-size:24px 24px;opacity:.35;
  -webkit-mask-image:linear-gradient(120deg,#000 0%,transparent 62%);
  mask-image:linear-gradient(120deg,#000 0%,transparent 62%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.hero-copy h1{margin:18px 0 16px}
.hero-sub{font-size:17px;color:var(--c-muted);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 22px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:var(--c-muted)}
.hero-points li{display:inline-flex;align-items:center;gap:8px}
.hero-points li::before{
  content:"";width:16px;height:16px;border-radius:50%;
  background:var(--c-tint);
  box-shadow:inset 0 0 0 1.5px var(--c-primary);
  flex:0 0 16px;
}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-lg);box-shadow:var(--sh-2);
}
.float-card{
  position:absolute;left:-14px;bottom:-18px;
  background:#fff;border:1px solid var(--c-line);border-radius:14px;
  box-shadow:var(--sh-1);padding:14px 18px;
  display:flex;align-items:center;gap:12px;
}
.float-card strong{font-size:28px;font-weight:800;color:var(--c-accent);line-height:1}
.float-card span{font-size:13px;color:var(--c-muted)}

/* ===== 指标条 ===== */
.stats-wrap{padding-bottom:8px}
.stats-bar{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:32px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.stat strong{display:block;font-size:40px;font-weight:800;line-height:1.1;color:var(--c-primary)}
.stat:nth-child(2) strong{color:var(--c-accent)}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--c-muted)}

/* ===== 筛选行 ===== */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.chip{
  display:inline-flex;align-items:center;min-height:40px;
  padding:0 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);
  font-size:14px;font-weight:600;color:var(--c-muted);
  cursor:pointer;transition:all .18s;
}
.chip:hover{border-color:var(--c-line-strong);color:var(--c-primary)}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* ===== 课程卡 ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.course-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--sh-1);
  transition:transform .18s,box-shadow .18s,border-color .18s;
}
.course-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-line-strong)}
.course-card img{width:100%;height:190px;object-fit:cover}
.course-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:var(--r-pill);
  background:var(--c-tint);color:var(--c-primary);
}
.tag-accent{background:var(--c-accent-soft);color:var(--c-accent-h)}
.course-body h3{font-size:20px}
.course-body p{font-size:14px;color:var(--c-muted);line-height:1.8}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:auto;font-size:15px;font-weight:600;color:var(--c-primary);
  transition:gap .18s,color .18s;
}
.link-arrow:hover{gap:12px;color:var(--c-accent-h)}

/* ===== 学习路径 ===== */
.path-wrap{background:#fff}
.timeline{display:grid;gap:22px;max-width:900px}
.timeline-item{position:relative;padding-left:96px;min-height:78px}
.timeline-item::before{
  content:"";position:absolute;left:31px;top:72px;bottom:-22px;width:2px;
  background:linear-gradient(180deg,var(--c-line-strong),var(--c-tint));
}
.timeline-item:last-child::before{display:none}
.step-num{
  position:absolute;left:0;top:0;width:64px;height:64px;
  border-radius:18px;background:#fff;border:1px solid var(--c-line);
  display:grid;place-items:center;font-size:22px;font-weight:800;
  color:var(--c-primary);box-shadow:var(--sh-1);
}
.timeline-item h3{margin-bottom:6px}
.timeline-item p{font-size:15px;color:var(--c-muted);max-width:640px}

/* ===== 表单板块 ===== */
.consult{
  background:linear-gradient(180deg,#F6F8FC 0%,#FFFFFF 100%);
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
}
.consult-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.consult-copy p{color:var(--c-muted);margin-top:14px}
.consult-list{display:grid;gap:14px;margin-top:28px}
.consult-list li{display:flex;gap:12px;font-size:15px;color:var(--c-muted)}
.consult-list li::before{
  content:"";flex:0 0 20px;width:20px;height:20px;margin-top:3px;border-radius:50%;
  background:var(--c-tint);box-shadow:inset 0 0 0 4px #fff,inset 0 0 0 5px var(--c-primary);
}
.form-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:32px;
}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--c-ink)}
.req{color:var(--c-accent)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid #DDE5F0;border-radius:var(--r-input);
  background:#fff;min-height:46px;padding:10px 14px;font-size:15px;
  transition:border-color .18s,box-shadow .18s;
}
.field textarea{min-height:96px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--c-weak)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(30,99,216,.16);
}
.form-card .btn{width:100%;margin-top:6px}
.form-note{font-size:13px;color:var(--c-weak);margin-top:12px;line-height:1.7}
.form-feedback{
  display:none;margin-top:16px;padding:12px 16px;border-radius:12px;
  background:#EAF7F1;color:#0F7A55;font-size:14px;font-weight:600;
}
.form-feedback.is-show{display:block}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:14px;
  overflow:hidden;transition:border-color .18s,box-shadow .18s;
}
.faq-item.is-open{border-color:var(--c-line-strong);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;padding:20px 24px;min-height:56px;
  font-size:16px;font-weight:600;text-align:left;cursor:pointer;
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{
  position:relative;flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--c-line);display:grid;place-items:center;transition:all .18s;
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .2s,opacity .2s}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px}
.faq-item.is-open .faq-icon{background:var(--c-tint);border-color:var(--c-line-strong)}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a-inner{
  margin:0 24px 22px 24px;padding-left:16px;border-left:3px solid var(--c-primary);
  font-size:15px;line-height:1.85;color:var(--c-muted);
}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-primary);border-radius:24px;
  padding:48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.28) 1px,transparent 1px);
  background-size:22px 22px;opacity:.4;
  -webkit-mask-image:linear-gradient(90deg,transparent 40%,#000 100%);
  mask-image:linear-gradient(90deg,transparent 40%,#000 100%);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-70px;width:260px;height:260px;
  border:1.5px solid rgba(255,255,255,.28);border-radius:50%;
}
.cta-band h2{color:#fff;position:relative}
.cta-band p{position:relative;margin-top:10px;color:rgba(255,255,255,.86);font-size:15px;max-width:520px}
.cta-band .btn{position:relative;flex:0 0 auto}

/* ===== 页脚 ===== */
.site-footer{background:var(--c-dark);color:#B9C6D6;padding:72px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:16px}
.footer-about{font-size:14px;line-height:1.85;color:#9FB0C4;max-width:340px}
.footer-contact{display:grid;gap:8px;margin-top:18px;font-size:14px;color:#9FB0C4}
.footer-contact strong{color:#fff;font-weight:600;margin-right:8px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;letter-spacing:.02em}
.site-footer ul{display:grid;gap:10px}
.site-footer ul a{font-size:14px;color:#9FB0C4;transition:color .18s}
.site-footer ul a:hover{color:#fff}
.qr-box{
  width:124px;height:124px;border-radius:12px;padding:10px;
  border:1px dashed rgba(255,255,255,.28);background:rgba(255,255,255,.04);
  display:grid;place-items:center;text-align:center;font-size:12px;line-height:1.6;color:#8494A8;
}
.footer-note{font-size:13px;line-height:1.8;color:#8494A8;margin-top:14px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:10px 28px;font-size:13px;color:#8494A8;
}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media{max-width:620px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .consult-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .stats-bar{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-toggle{display:inline-flex}
  .nav-menu{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border:1px solid var(--c-line);border-radius:20px;
    box-shadow:var(--sh-2);padding:12px;max-height:70vh;overflow:auto;
  }
  .nav-shell.is-open .nav-menu{display:flex}
  .nav-menu a{min-height:48px;padding:0 16px;font-size:16px;width:100%}
  .nav-actions .btn-sm{display:none}
  .nav-shell.is-open .nav-actions .btn-sm{display:inline-flex;position:absolute;left:12px;right:12px;bottom:-64px;width:calc(100% - 24px)}
  .hero{padding:36px 0 56px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
  .cta-band .btn{width:100%}
}
@media(max-width:640px){
  .section{padding:56px 0}
  .container{padding:0 20px}
  .nav-shell{margin-left:16px;margin-right:16px;padding:8px 10px 8px 14px}
  .brand{font-size:15px}
  .card-grid{grid-template-columns:1fr}
  .stats-bar{padding:24px;gap:20px}
  .stat strong{font-size:34px}
  .timeline-item{padding-left:76px}
  .step-num{width:54px;height:54px;border-radius:14px;font-size:19px}
  .timeline-item::before{left:26px;top:62px}
  .form-card{padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding:56px 0 0;margin-top:64px}
  .float-card{left:0;bottom:-14px;padding:12px 14px}
  .float-card strong{font-size:24px}
  .faq-a-inner{margin:0 18px 18px 18px}
  .faq-q{padding:18px}
}

/* roulang page: category3 */
:root{
  --c-primary:#1E63D8;
  --c-primary-hover:#1550B8;
  --c-tint:#E7EFFC;
  --c-accent:#F5811F;
  --c-accent-hover:#DE6E10;
  --c-ink:#0F2138;
  --c-muted:#55657A;
  --c-weak:#8494A8;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-dark:#0E1B2B;
  --c-line:#E2E9F4;
  --c-line-strong:#CFE0F8;
  --c-success:#17A673;
  --c-error:#D93A3A;
  --r-card:16px;
  --r-block:20px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 6px 18px rgba(15,33,56,.06);
  --sh-2:0 14px 36px rgba(15,33,56,.12);
  --sp-1:8px;--sp-2:12px;--sp-3:16px;--sp-4:24px;--sp-5:32px;--sp-6:48px;--sp-7:64px;--sp-8:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-accent);}
button{font-family:inherit;border:0;background:none;cursor:pointer;}
h1,h2,h3,h4{font-weight:800;letter-spacing:-0.01em;line-height:1.25;color:var(--c-ink);}
h1{font-size:clamp(30px,4vw,46px);}
h2{font-size:clamp(24px,3vw,34px);}
h3{font-size:20px;}
p{font-size:16px;line-height:1.75;color:var(--c-muted);}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:17px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--c-primary);
  background:var(--c-tint);
  border-radius:var(--r-pill);
  padding:6px 14px;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:16px;
  z-index:60;
  padding:16px 24px 0;
}
.nav-shell{
  max-width:1120px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:20px;
  padding:10px 10px 10px 20px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  box-shadow:0 8px 24px rgba(15,33,56,.08);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--c-ink);
  font-weight:800;
  font-size:16px;
  letter-spacing:-0.01em;
  white-space:nowrap;
  min-height:44px;
}
.brand:hover{color:var(--c-ink);}
.brand-mark{display:inline-flex;flex:0 0 auto;}
.brand-text{display:inline-block;}
.nav-menu{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-menu a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 16px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  color:var(--c-muted);
  white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-menu a:hover{color:var(--c-primary);background:#F2F7FF;}
.nav-menu a:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.nav-menu a.active{color:var(--c-primary);background:var(--c-tint);}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--r-pill);
  background:var(--c-primary);
  color:#fff;
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.nav-cta:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(30,99,216,.28);}
.nav-cta:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;}
.nav-toggle{
  display:none;
  width:46px;height:46px;
  border-radius:50%;
  border:1px solid var(--c-line);
  background:#fff;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  margin-left:auto;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-panel{
  display:none;
  max-width:1120px;
  margin:12px auto 0;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:20px;
  box-shadow:var(--sh-2);
  padding:12px;
  max-height:70vh;
  overflow-y:auto;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 16px;
  border-radius:12px;
  font-size:15px;
  font-weight:600;
  color:var(--c-ink);
}
.mobile-panel a:hover{background:#F2F7FF;color:var(--c-primary);}
.mobile-panel a.active{background:var(--c-tint);color:var(--c-primary);}
.mobile-panel .mobile-cta{
  justify-content:center;
  margin-top:8px;
  background:var(--c-primary);
  color:#fff;
}
.mobile-panel .mobile-cta:hover{background:var(--c-primary-hover);color:#fff;}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 28px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  border:2px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(30,99,216,.26);}
.btn-outline{background:#fff;border-color:var(--c-line-strong);color:var(--c-primary);}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary-hover);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(245,129,31,.26);}
.btn:focus-visible{outline:3px solid rgba(30,99,216,.34);outline-offset:3px;}
.btn:active{transform:translateY(0);}

/* ---------- 通栏 Banner ---------- */
.page-banner{
  position:relative;
  margin-top:24px;
  border-radius:24px;
  overflow:hidden;
  background-image:linear-gradient(90deg,rgba(14,27,43,.92) 0%,rgba(14,27,43,.72) 46%,rgba(14,27,43,.34) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  min-height:420px;
  display:flex;
  align-items:center;
}
.page-banner::after{
  content:"";
  position:absolute;
  right:-40px;
  bottom:-80px;
  width:340px;
  height:340px;
  border:1.5px solid rgba(255,255,255,.18);
  border-radius:50%;
  pointer-events:none;
}
.banner-inner{
  position:relative;
  z-index:2;
  max-width:660px;
  padding:72px 24px;
}
.banner-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.26);
  color:#fff;
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  margin-bottom:20px;
}
.banner-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.page-banner h1{color:#fff;margin-bottom:18px;}
.page-banner h1 .hl{color:#FFB673;}
.page-banner p{color:rgba(255,255,255,.86);font-size:18px;line-height:1.7;margin-bottom:28px;max-width:540px;}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;}
.banner-actions .btn-outline{background:transparent;border-color:rgba(255,255,255,.6);color:#fff;}
.banner-actions .btn-outline:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}
.banner-facts{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:36px;
  padding-top:26px;
  border-top:1px solid rgba(255,255,255,.18);
}
.banner-facts div{color:rgba(255,255,255,.72);font-size:14px;}
.banner-facts strong{display:block;color:#fff;font-size:26px;font-weight:800;letter-spacing:-0.02em;line-height:1.2;}
.banner-facts strong em{font-style:normal;font-size:14px;font-weight:600;margin-left:4px;color:rgba(255,255,255,.7);}

/* ---------- 赛程列表 ---------- */
.schedule-list{display:flex;flex-direction:column;gap:16px;}
.schedule-item{
  display:grid;
  grid-template-columns:104px minmax(0,1fr) auto;
  gap:24px;
  align-items:center;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px 26px;
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.schedule-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-line-strong);}
.date-block{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-img);
  background:var(--c-tint);
  padding:10px 6px;
  border:1px solid #D8E6FA;
}
.date-block .month{font-size:13px;font-weight:700;color:var(--c-primary);letter-spacing:.08em;}
.date-block .day{font-size:26px;font-weight:800;color:var(--c-ink);line-height:1.1;}
.date-block .weekday{font-size:12px;color:var(--c-muted);}
.schedule-body h3{font-size:19px;margin-bottom:8px;}
.schedule-body p{font-size:15px;line-height:1.7;color:var(--c-muted);margin-bottom:12px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  font-size:13px;
  font-weight:600;
  border-radius:var(--r-pill);
  background:var(--c-tint);
  color:var(--c-primary);
}
.tag--accent{background:#FFF1E3;color:var(--c-accent-hover);}
.tag--muted{background:#EEF2F8;color:var(--c-muted);}
.tag--ok{background:#E6F7F0;color:#0F7F5B;}
.schedule-action{display:flex;flex-direction:column;align-items:flex-end;gap:10px;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:700;
  color:var(--c-primary);
  min-height:44px;
  padding:0 4px;
}
.link-arrow::after{content:"→";transition:transform .18s ease;}
.link-arrow:hover{color:var(--c-accent);}
.link-arrow:hover::after{transform:translateX(4px);}
.link-arrow:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px;}

/* ---------- 双列图卡 ---------- */
.duo-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.duo-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-block);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  display:flex;
  flex-direction:column;
}
.duo-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-line-strong);}
.duo-media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.duo-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.duo-card:hover .duo-media img{transform:scale(1.04);}
.duo-media .media-badge{
  position:absolute;
  left:16px;
  top:16px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.92);
  color:var(--c-primary);
  font-size:13px;
  font-weight:700;
}
.duo-body{padding:24px 26px 26px;}
.duo-body h3{font-size:21px;margin-bottom:10px;}
.duo-body p{font-size:15px;line-height:1.75;margin-bottom:16px;}
.mini-list{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.mini-list li{position:relative;padding-left:20px;font-size:14px;color:var(--c-muted);}
.mini-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:8px;
  width:8px;
  height:8px;
  border-radius:50%;
  border:2px solid var(--c-primary);
}

/* ---------- 报名表单 ---------- */
.signup{
  background:var(--c-dark);
  border-radius:24px;
  padding:56px;
  position:relative;
  overflow:hidden;
}
.signup::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.35;
  pointer-events:none;
}
.signup-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:48px;
  align-items:start;
}
.signup-info .eyebrow{background:rgba(255,255,255,.12);color:#9FC2FF;}
.signup-info h2{color:#fff;margin-bottom:16px;}
.signup-info p{color:#B9C6D6;font-size:16px;margin-bottom:24px;}
.signup-points{display:flex;flex-direction:column;gap:14px;margin-bottom:28px;}
.signup-points li{display:flex;gap:12px;color:#D7E1EE;font-size:15px;line-height:1.7;}
.signup-points li span.dot{
  flex:0 0 auto;
  width:20px;height:20px;
  margin-top:3px;
  border-radius:50%;
  background:rgba(245,129,31,.18);
  border:1px solid rgba(245,129,31,.6);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--c-accent);
  font-size:12px;
  font-weight:800;
}
.signup-hotline{font-size:14px;color:#9FB0C4;}
.signup-hotline strong{display:block;color:#fff;font-size:24px;font-weight:800;letter-spacing:.02em;margin-top:4px;}
.form-card{
  background:#fff;
  border-radius:20px;
  padding:32px;
  box-shadow:0 20px 48px rgba(4,12,24,.28);
}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.field label{font-size:14px;font-weight:600;color:var(--c-ink);}
.field label .req{color:var(--c-accent);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;
  min-height:46px;
  padding:11px 14px;
  font-family:inherit;
  font-size:15px;
  color:var(--c-ink);
  background:#fff;
  border:1px solid #DDE5F0;
  border-radius:var(--r-input);
  transition:border-color .18s ease,box-shadow .18s ease;
  appearance:none;
}
.field select{
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%2355657A' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  padding-right:36px;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#9AA9BB;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(30,99,216,.18);
}
.form-hint{font-size:13px;color:var(--c-weak);line-height:1.7;margin-top:14px;}
.form-hint a{color:var(--c-primary);font-weight:600;}
.form-card .btn{width:100%;margin-top:6px;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-img);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item[open]{border-color:var(--c-line-strong);box-shadow:var(--sh-2);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--c-ink);
  cursor:pointer;
  min-height:56px;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  width:28px;height:28px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--c-line);
  color:var(--c-primary);
  font-size:18px;
  font-weight:700;
  line-height:1;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.faq-item[open] summary::after{
  content:"−";
  background:var(--c-tint);
  border-color:var(--c-line-strong);
  color:var(--c-primary);
  transform:rotate(180deg);
}
.faq-item summary:focus-visible{outline:2px solid var(--c-primary);outline-offset:-2px;}
.faq-body{
  padding:0 22px 20px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-muted);
  border-left:3px solid var(--c-primary);
  margin:0 0 0 22px;
  padding-left:16px;
  padding-right:16px;
}

/* ---------- 结尾 CTA ---------- */
.cta-band{
  position:relative;
  background:var(--c-primary);
  border-radius:24px;
  padding:48px 56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.18) 1px,transparent 1px);
  background-size:20px 20px;
  opacity:.5;
  pointer-events:none;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-70px;
  top:-90px;
  width:280px;
  height:280px;
  border:1.5px solid rgba(255,255,255,.22);
  border-radius:50%;
  pointer-events:none;
}
.cta-text{position:relative;z-index:2;}
.cta-text h2{color:#fff;margin-bottom:10px;}
.cta-text p{color:rgba(255,255,255,.88);font-size:16px;max-width:560px;}
.cta-band .btn{position:relative;z-index:2;background:#fff;color:var(--c-primary);flex:0 0 auto;}
.cta-band .btn:hover{background:#F2F7FF;color:var(--c-primary-hover);transform:translateY(-2px);box-shadow:0 12px 26px rgba(4,12,24,.2);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-dark);
  color:#B9C6D6;
  padding:72px 0 28px;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:800;
  margin-bottom:16px;
}
.footer-brand:hover{color:#fff;}
.footer-about{font-size:14px;line-height:1.8;color:#9FB0C4;margin-bottom:20px;max-width:340px;}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:14px;color:#9FB0C4;}
.footer-contact strong{color:#D7E1EE;font-weight:600;margin-right:10px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{color:#B9C6D6;font-size:14px;display:inline-flex;align-items:center;min-height:32px;}
.footer-col ul a:hover{color:#fff;}
.footer-col ul a:focus-visible{outline:2px solid #fff;outline-offset:3px;border-radius:4px;}
.qr-box{
  width:118px;height:118px;
  border-radius:14px;
  border:1px dashed #3B4B60;
  background:rgba(255,255,255,.04);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:12px;
  line-height:1.6;
  color:#8FA1B6;
  margin-bottom:14px;
}
.footer-note{font-size:13px;line-height:1.7;color:#8FA1B6;}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid #20304A;
  display:flex;
  flex-wrap:wrap;
  gap:12px 32px;
  font-size:13px;
  color:#8FA1B6;
}
.footer-bottom p{margin:0;font-size:13px;color:#8FA1B6;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .section{padding:72px 0;}
  .nav-menu a{padding:0 12px;font-size:14px;}
  .brand-text{font-size:15px;}
  .signup{padding:40px;}
  .signup-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-banner{min-height:380px;}
  .banner-inner{padding:56px 24px;}
  .schedule-item{grid-template-columns:92px minmax(0,1fr);}
  .schedule-action{grid-column:2;flex-direction:row;align-items:center;justify-content:flex-start;}
  .cta-band{padding:40px;}
}
@media screen and (max-width:768px){
  .site-header{padding:12px 16px 0;top:12px;}
  .container{padding:0 20px;}
  .nav-menu,.nav-shell > .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-shell{padding:10px 12px 10px 16px;gap:12px;}
  .section{padding:56px 0;}
  .page-banner{margin-top:16px;border-radius:20px;min-height:0;}
  .banner-inner{padding:48px 20px;}
  .page-banner p{font-size:16px;}
  .banner-facts{gap:20px;}
  .banner-facts strong{font-size:22px;}
  .duo-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;border-radius:20px;}
  .cta-band .btn{width:100%;}
  .signup{padding:32px 22px;border-radius:20px;}
  .form-card{padding:24px 20px;}
  .form-row{grid-template-columns:1fr;gap:0;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .site-footer{margin-top:64px;padding:56px 0 24px;}
  .schedule-item{padding:18px;gap:16px;}
  .schedule-body h3{font-size:17px;}
}
@media screen and (max-width:520px){
  .schedule-item{grid-template-columns:1fr;}
  .date-block{flex-direction:row;gap:10px;justify-content:flex-start;padding:8px 14px;}
  .date-block .day{font-size:20px;}
  .schedule-action{grid-column:1;}
  .banner-actions .btn{width:100%;}
  .banner-facts div{font-size:13px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category4 */
:root{
  --c-primary:#1E63D8;
  --c-primary-hover:#1550B8;
  --c-tint:#E7EFFC;
  --c-accent:#F5811F;
  --c-accent-hover:#DE6E10;
  --c-ink:#0F2138;
  --c-muted:#55657A;
  --c-weak:#8494A8;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-dark:#0E1B2B;
  --c-border:#E2E9F4;
  --c-success:#17A673;
  --c-error:#D93A3A;
  --r-card:16px;
  --r-lg:20px;
  --r-img:14px;
  --r-pill:999px;
  --shadow-1:0 6px 18px rgba(15,33,56,.06);
  --shadow-2:0 14px 36px rgba(15,33,56,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding-top:16px;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.25;color:var(--c-ink)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
img{display:block;max-width:100%;height:auto}
ul{margin:0;padding:0;list-style:none}
a{color:var(--c-primary);text-decoration:none;transition:color .16s ease,background-color .16s ease,border-color .16s ease}
a:hover{color:var(--c-primary-hover)}
button{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(30,99,216,.45);
  outline-offset:2px;
  border-radius:6px;
}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.grid-margin-x{margin-left:-.9375rem;margin-right:-.9375rem}

/* ===== 导航 ===== */
.site-header{position:sticky;top:16px;z-index:60;padding:0 16px}
.nav-shell{
  max-width:1120px;margin:0 auto;display:flex;align-items:center;gap:14px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid var(--c-border);border-radius:var(--r-pill);
  box-shadow:0 8px 24px rgba(15,33,56,.08);
  padding:10px 14px 10px 18px;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--c-ink);white-space:nowrap}
.brand:hover{color:var(--c-primary)}
.brand-mark{display:inline-flex;flex:0 0 auto}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-menu a{
  display:inline-flex;align-items:center;min-height:44px;padding:0 15px;
  border-radius:var(--r-pill);font-size:15px;font-weight:600;color:var(--c-muted);
  transition:color .12s ease,background-color .12s ease;
}
.nav-menu a:hover{color:var(--c-primary);background:var(--c-tint)}
.nav-menu a.active{color:var(--c-primary);background:var(--c-tint)}
.nav-actions{margin-left:4px;display:flex;align-items:center}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  background:var(--c-tint);border:1px solid var(--c-border);cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.mobile-panel{
  display:none;max-width:1120px;margin:10px auto 0;background:#fff;
  border:1px solid var(--c-border);border-radius:20px;box-shadow:var(--shadow-2);
  padding:12px;max-height:70vh;overflow:auto;
}
.mobile-panel.open{display:block}
.mobile-panel a{
  display:flex;align-items:center;min-height:48px;padding:0 16px;border-radius:12px;
  font-size:15px;font-weight:600;color:var(--c-muted);
}
.mobile-panel a:hover,.mobile-panel a.active{background:var(--c-tint);color:var(--c-primary)}
.mobile-panel .btn{width:100%;margin-top:8px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(30,99,216,.26)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;color:var(--c-ink);border-color:var(--c-border)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-1px)}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px}
.btn-block{width:100%}

/* ===== 通用板块 ===== */
.section{padding:72px 0}
.section-white{background:#fff}
.section-head{max-width:760px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;color:var(--c-primary);
  background:var(--c-tint);padding:5px 13px;border-radius:var(--r-pill);margin-bottom:14px;
}
h1{font-size:clamp(30px,4vw,46px)}
h2{font-size:clamp(24px,3vw,34px)}
.section-head p{margin-top:14px;color:var(--c-muted);font-size:16px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:15px;color:var(--c-primary)}
.text-link .arrow{transition:transform .18s ease;display:inline-block}
.text-link:hover .arrow{transform:translateX(4px)}
.text-link:hover{color:var(--c-accent)}

/* ===== 内页 Hero ===== */
.page-hero{
  position:relative;overflow:hidden;padding:56px 0 64px;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--c-bg) 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(30,99,216,.16) 1px,transparent 1px);
  background-size:20px 20px;opacity:.5;
  -webkit-mask-image:linear-gradient(115deg,#000 0%,rgba(0,0,0,.35) 45%,transparent 72%);
  mask-image:linear-gradient(115deg,#000 0%,rgba(0,0,0,.35) 45%,transparent 72%);
}
.page-hero .container{position:relative;z-index:1}
.hero-lead{margin-top:16px;font-size:17px;color:var(--c-muted);max-width:560px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-facts{display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;padding-top:26px;border-top:1px solid var(--c-border)}
.hero-fact .num{display:block;font-size:30px;font-weight:800;color:var(--c-primary);line-height:1.2}
.hero-fact .num.accent{color:var(--c-accent)}
.hero-fact .cap{font-size:13px;color:var(--c-muted)}
.hero-media{position:relative;margin-top:8px}
.hero-media img{width:100%;height:360px;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-2)}
.float-card{
  position:absolute;left:-14px;bottom:24px;background:#fff;border-radius:14px;
  box-shadow:var(--shadow-2);padding:14px 18px;display:flex;align-items:center;gap:12px;
}
.float-card .num{font-size:26px;font-weight:800;color:var(--c-accent);line-height:1.1}
.float-card .txt{font-size:13px;color:var(--c-muted);line-height:1.4}

/* ===== 流程 ===== */
.step-card{
  position:relative;height:100%;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFE0F8}
.step-num{display:inline-block;font-size:15px;font-weight:800;letter-spacing:.1em;color:var(--c-accent)}
.step-card h3{font-size:19px;margin:10px 0 8px}
.step-card p{font-size:14px;line-height:1.7;color:var(--c-muted);margin:0}

/* ===== 对比表 ===== */
.compare-wrap{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.compare{width:100%;min-width:720px;border-collapse:collapse;font-size:15px}
.compare th,.compare td{padding:15px 22px;text-align:left;border:none;line-height:52px}
.compare thead th{
  background:rgba(30,99,216,.05);color:var(--c-ink);font-weight:700;font-size:15px;white-space:nowrap;
}
.compare tbody tr:nth-child(even){background:#F9FBFE}
.compare tbody td{color:var(--c-muted);font-size:14px;line-height:1.6;padding-top:14px;padding-bottom:14px}
.compare td:first-child,.compare th:first-child{color:var(--c-ink);font-weight:600}
.compare .yes{color:var(--c-success);font-weight:700}
.compare .no{color:var(--c-weak)}
.table-hint{margin-top:14px;font-size:13px;color:var(--c-weak)}

/* ===== 支持内容 ===== */
.support-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.support-item{
  display:flex;gap:14px;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-img);padding:20px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.support-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CFE0F8}
.icon-box{
  flex:0 0 42px;width:42px;height:42px;border-radius:12px;background:var(--c-tint);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);
}
.support-item h3{font-size:17px;margin-bottom:6px}
.support-item p{font-size:14px;color:var(--c-muted);line-height:1.7;margin:0}
.figure-card{position:relative}
.figure-card img{width:100%;height:100%;min-height:300px;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-2)}
.figure-note{
  position:absolute;right:16px;bottom:16px;background:rgba(255,255,255,.94);
  border-radius:12px;padding:10px 14px;font-size:13px;color:var(--c-muted);
  box-shadow:var(--shadow-1);max-width:230px;line-height:1.5;
}

/* ===== 表单区 ===== */
.join-section{
  position:relative;overflow:hidden;background:#fff;
  border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);
}
.join-section::after{
  content:"";position:absolute;width:360px;height:360px;border:1.5px solid rgba(30,99,216,.09);
  border-radius:50%;right:-120px;bottom:-140px;pointer-events:none;
}
.join-section .container{position:relative;z-index:1}
.join-points{margin-top:22px;display:grid;gap:12px}
.join-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--c-muted)}
.join-points .dot{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;background:var(--c-tint);
  color:var(--c-primary);font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-top:2px;
}
.form-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--shadow-2);
}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-card .form-sub{font-size:14px;color:var(--c-muted);margin-bottom:20px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.field .req{color:var(--c-accent);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid #DDE5F0;border-radius:12px;
  background:#fff;color:var(--c-ink);font-size:15px;font-family:inherit;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.field textarea{height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(30,99,216,.14);
}
.field .hint{font-size:13px;color:var(--c-weak);margin-top:8px}
.form-tip{font-size:13px;color:var(--c-weak);margin-top:14px;line-height:1.7}

/* ===== FAQ ===== */
.faq-wrap{max-width:860px;margin:0 auto}
.accordion{background:transparent;border:none;margin:0}
.accordion-item{
  background:#fff;border:1px solid var(--c-border);border-radius:14px;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.accordion-item:hover{border-color:#CFE0F8;box-shadow:var(--shadow-2)}
.accordion-title{
  position:relative;border:none;background:transparent;color:var(--c-ink);
  font-size:16px;font-weight:600;padding:18px 62px 18px 20px;line-height:1.55;
}
.accordion-title:hover{background:#FBFCFE;color:var(--c-primary)}
.accordion-title::before{display:none}
.accordion-title::after{
  content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;background:var(--c-tint);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;line-height:1;
}
.accordion-title[aria-expanded="true"]{color:var(--c-primary)}
.accordion-title[aria-expanded="true"]::after{content:"−";background:var(--c-primary);color:#fff}
.accordion-content{
  border:none;background:transparent;padding:0 22px 18px 19px;margin:0 0 0 20px;
  border-left:3px solid var(--c-primary);color:var(--c-muted);font-size:15px;line-height:1.8;
}

/* ===== CTA ===== */
.cta-section{padding:72px 0 24px}
.cta-band{
  position:relative;overflow:hidden;background:var(--c-dark);border-radius:24px;
  padding:48px;display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.45;
  -webkit-mask-image:linear-gradient(90deg,transparent 30%,#000 100%);
  mask-image:linear-gradient(90deg,transparent 30%,#000 100%);
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,32px)}
.cta-band p{color:#B9C6D6;margin-top:12px;max-width:560px;font-size:15px}
.cta-band .btn-primary{background:#fff;color:var(--c-primary);white-space:nowrap}
.cta-band .btn-primary:hover{background:var(--c-tint);color:var(--c-primary-hover);transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.25)}

/* ===== 页脚 ===== */
.site-footer{background:var(--c-dark);color:#B9C6D6;margin-top:64px;padding-top:64px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:16px}
.footer-brand:hover{color:#fff}
.footer-about{font-size:14px;line-height:1.8;color:#9FB0C4;margin-bottom:18px}
.footer-contact span{display:block;margin-bottom:9px;color:#9FB0C4;font-size:14px}
.footer-contact strong{color:#DCE6F2;font-weight:600;margin-right:8px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col ul li a{
  display:inline-flex;align-items:center;min-height:32px;padding:3px 0;
  color:#9FB0C4;font-size:14px;
}
.footer-col ul li a:hover{color:#fff}
.qr-box{
  border:1px dashed rgba(255,255,255,.25);border-radius:14px;padding:20px 16px;
  text-align:center;font-size:13px;color:#9FB0C4;margin-bottom:14px;line-height:1.8;
}
.footer-note{font-size:13px;color:#8494A8;line-height:1.75;margin:0}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between;
  font-size:13px;color:#8494A8;
}
.footer-bottom p{margin:0}

/* ===== 响应式 ===== */
@media screen and (max-width:1024px){
  .section{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-media img{height:320px}
}
@media screen and (max-width:768px){
  .nav-menu,.nav-actions{display:none}
  .nav-toggle{display:flex}
  .nav-shell{padding:8px 10px 8px 14px}
  .brand{font-size:16px}
  .page-hero{padding:40px 0 48px}
  .hero-media{margin-top:28px}
  .hero-media img{height:280px}
  .float-card{left:8px;bottom:14px;padding:12px 14px}
  .support-list{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 26px;gap:24px}
  .cta-band .btn{width:100%}
  .form-card{padding:22px}
  .footer-col ul li a{min-height:44px}
}
@media screen and (max-width:640px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .hero-facts{gap:20px;row-gap:18px}
  .hero-fact{flex:1 1 44%}
  .hero-fact .num{font-size:26px}
  .hero-actions .btn{width:100%}
  .hero-media img{height:220px}
  .float-card .num{font-size:22px}
  .figure-card img{min-height:220px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .accordion-content{margin-left:14px;padding-right:16px}
}