/* roulang page: index */
:root{
  --primary:#1769e0;
  --primary-dark:#0c4cab;
  --primary-soft:#e8f1fc;
  --ink:#101d2e;
  --muted:#5d6b7e;
  --line:#d7dfea;
  --line-soft:#ecf1f6;
  --bg:#f6f8fb;
  --card:#ffffff;
  --navy:#082148;
  --orange:#ff6a3d;
  --danger:#d92d20;
  --success:#0b7a5a;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:9px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(16,30,50,.05), 0 8px 24px rgba(16,30,50,.05);
  --shadow-md:0 1px 2px rgba(16,30,50,.05), 0 18px 48px rgba(16,30,50,.08);
  --shadow-orange:0 12px 28px rgba(255,106,61,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1200px;
  --header-h:76px;
  --radius-outer:20px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0 0 1em}
h1,h2,h3{line-height:1.3;font-weight:700}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease)}
a:visited{color:var(--primary-dark)}
a:hover{color:var(--primary-dark)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{padding-left:1.25rem}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}
.container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
.container-wide{width:min(1280px,calc(100% - 32px));margin-inline:auto}

/* 品牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  font-weight:800;
  font-size:1.22rem;
  letter-spacing:-.2px;
  line-height:1.2;
  min-height:44px;
}
.brand:hover,.brand:visited{color:var(--ink)}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  background:var(--primary);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:1.05rem;
  font-weight:800;
  box-shadow:0 8px 18px rgba(23,105,224,.24);
  position:relative;
}
.brand-mark::after{
  content:"";
  position:absolute;
  right:-3px;top:-3px;
  width:10px;height:10px;
  border-radius:50%;
  background:var(--orange);
  border:2px solid #fff;
}
.brand-name em{
  font-style:normal;
  margin-left:7px;
  font-size:.72rem;
  font-weight:600;
  color:var(--primary);
  background:var(--primary-soft);
  padding:3px 9px;
  border-radius:var(--radius-pill);
  vertical-align:2px;
  letter-spacing:.3px;
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:10px 24px;
  border-radius:var(--radius-sm);
  font-size:.95rem;
  font-weight:600;
  line-height:1.4;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  text-align:center;
}
.btn:hover,.btn:visited{color:#fff}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);box-shadow:0 10px 26px rgba(23,105,224,.22)}
.btn-primary:visited{color:#fff}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:#fff;border-color:var(--primary);color:var(--primary)}
.btn-ghost:visited{color:var(--ink)}
.btn-ghost:hover:visited{color:var(--primary)}
.btn-soft{background:var(--primary-soft);color:var(--primary)}
.btn-soft:hover{background:#dbecff;color:var(--primary-dark)}
.btn-soft:visited{color:var(--primary)}
.btn-light{background:#fff;color:var(--primary)}
.btn-light:hover{background:var(--primary-soft);color:var(--primary-dark)}
.btn-light:visited{color:var(--primary)}
.btn-orange{background:var(--orange);color:#fff}
.btn-orange:hover{background:#e8542b;color:#fff;box-shadow:var(--shadow-orange)}
.btn-orange:visited{color:#fff}
.arrow-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-weight:600;
}
.arrow-link .arr{transition:transform .25s var(--ease)}
.arrow-link:hover .arr{transform:translateX(4px)}

/* 头部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(1.1);
}
.nav-inner{
  height:var(--header-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.nav-row{
  display:flex;
  align-items:center;
  gap:14px;
  flex:1;
  justify-content:flex-end;
}
.site-nav{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:8px 15px;
  color:var(--ink);
  font-size:.95rem;
  font-weight:500;
  border-radius:var(--radius-pill);
  position:relative;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:4px;
  height:3px;
  border-radius:var(--radius-pill);
  background:var(--primary);
  opacity:0;
  transform:scaleX(.5);
  transform-origin:center;
  transition:opacity .2s var(--ease),transform .25s var(--ease);
}
.nav-link:hover{
  color:var(--primary);
  background:#f4f8fd;
}
.nav-link:hover::after{
  opacity:.6;
  transform:scaleX(.8);
}
.nav-link.active{
  color:var(--primary);
  font-weight:700;
}
.nav-link.active::after{
  opacity:1;
  transform:scaleX(1);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:42px;
  padding:8px 19px;
  border-radius:var(--radius-pill);
  background:var(--primary);
  color:#fff;
  font-size:.9rem;
  font-weight:600;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.nav-cta:hover{background:var(--primary-dark);color:#fff}
.nav-cta:visited{color:#fff}
.nav-toggle{
  display:none;
  background:#fff;
  border:1px solid var(--line);
  width:46px;
  height:46px;
  border-radius:var(--radius-sm);
  cursor:pointer;
  align-items:center;
  justify-content:center;
  transition:border .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--primary)}
.nav-toggle svg{width:21px;height:21px;stroke:var(--ink)}

/* Hero */
.hero{
  position:relative;
  background:var(--bg);
  background-image:url('/assets/images/backpic/back-1.webp');
  background-position:center;
  background-size:cover;
  overflow:hidden;
  padding:88px 0 82px;
  border-bottom:1px solid var(--line-soft);
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(246,248,251,.98) 0%,rgba(246,248,251,.94) 38%,rgba(232,241,252,.84) 72%,rgba(232,241,252,.72) 100%);
  z-index:1;
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1.02fr) minmax(320px,.85fr);
  gap:68px;
  align-items:center;
}
.hero-copy .hero-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.82);
  border:1px solid #d7e4fa;
  color:var(--primary-dark);
  font-size:.8rem;
  font-weight:600;
  letter-spacing:.4px;
  border-radius:var(--radius-pill);
  padding:6px 14px;
  margin-bottom:22px;
}
.hero-label .dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--orange);
}
.hero h1{
  font-size:clamp(2rem,4.1vw,3.15rem);
  font-weight:800;
  letter-spacing:-.5px;
  margin-bottom:22px;
  color:var(--ink);
}
.hero-copy p{
  color:var(--muted);
  font-size:1.08rem;
  max-width:34rem;
  margin-bottom:28px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:38px;
}
.hero-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:30px 38px;
  margin-bottom:8px;
}
.metric-mini .m-label{
  display:block;
  color:var(--muted);
  font-size:.8rem;
}
.metric-mini .m-value{
  display:block;
  color:var(--ink);
  font-weight:700;
  font-size:1.28rem;
  margin-top:2px;
}
.hero-visual{
  position:relative;
}
.hero-visual .pic-card{
  border-radius:22px;
  overflow:hidden;
  background:#fff;
  box-shadow:var(--shadow-md);
  border:1px solid #fff;
  position:relative;
}
.hero-visual .pic-card img{
  aspect-ratio:4/3.2;
  object-fit:cover;
  width:100%;
}
.hero-visual .float-card{
  position:absolute;
  left:24px;
  bottom:-24px;
  right:24px;
  background:#fff;
  border:1px solid var(--line-soft);
  border-radius:14px;
  padding:14px 17px;
  box-shadow:var(--shadow-md);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.float-card .fc-title{
  font-size:.9rem;
  font-weight:700;
}
.float-card .fc-sub{
  color:var(--muted);
  font-size:.78rem;
}
.float-card .tag-navy{
  background:var(--navy);
  color:#fff;
  font-size:.72rem;
  padding:7px 12px;
  border-radius:var(--radius-pill);
  white-space:nowrap;
}

/* 信息速览条 */
.notice-strip{
  background:#fff;
  border-bottom:1px solid var(--line);
}
.notice-strip-inner{
  padding:22px 0;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px;
}
.notice-item{
  display:flex;
  gap:14px;
  align-items:center;
}
.notice-icon{
  width:38px;
  height:38px;
  border-radius:12px;
  background:var(--primary-soft);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  flex:none;
  font-weight:800;
}
.notice-item strong{
  display:block;
  font-size:.95rem;
}
.notice-item span{
  display:block;
  color:var(--muted);
  font-size:.82rem;
}

/* 通用 section */
.section{
  padding:88px 0;
  background:var(--bg);
}
.section-white{
  background:#fff;
}
.section-line{
  border-top:1px solid var(--line);
}
.section-head{
  max-width:650px;
  margin-bottom:52px;
}
.section-head h2{
  font-size:clamp(1.6rem,2.8vw,2.2rem);
  font-weight:750;
  letter-spacing:-.3px;
  margin-bottom:14px;
}
.lead-text{
  color:var(--muted);
  font-size:1rem;
}
.kicker{
  display:inline-block;
  color:var(--primary);
  font-weight:700;
  font-size:.82rem;
  letter-spacing:.4px;
  border:1px solid #cfe1fa;
  background:var(--primary-soft);
  padding:5px 14px;
  border-radius:var(--radius-pill);
  margin-bottom:18px;
}

/* 三个入口卡 */
.entry-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.entry-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:30px 28px 28px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
  display:flex;
  flex-direction:column;
}
.entry-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-md);
  border-color:#c7dcf8;
}
.entry-card .cover{
  border-radius:14px;
  overflow:hidden;
  margin:-2px 0 22px;
}
.entry-card .cover img{
  aspect-ratio:16/10;
  object-fit:cover;
  width:100%;
}
.entry-card h3{
  font-size:1.32rem;
  margin-bottom:10px;
}
.entry-card p{
  color:var(--muted);
  font-size:.94rem;
  margin-bottom:20px;
}
.scroll-page-link{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:600;
}

/* 权益阶梯 */
.tier-section{
  background:linear-gradient(180deg,#ffffff 0%,#f6f9fd 100%);
  border-bottom:1px solid var(--line);
}
.tier-grid{
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(0,1.7fr);
  gap:68px;
  align-items:start;
}
.tier-aside{
  position:sticky;
  top:120px;
}
.tier-aside .btn{margin-top:8px}
.tier-stack{
  display:grid;
  gap:22px;
}
.tier-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px 30px;
  display:flex;
  align-items:flex-start;
  gap:22px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),transform .25s var(--ease);
  position:relative;
}
.tier-item:nth-child(2){
  transform:translateX(24px);
}
.tier-item:nth-child(2) .tier-step{
  background:var(--primary);
}
.tier-item:nth-child(3){
  transform:translateX(6px);
  border-color:#f8c2ab;
}
.tier-item:hover{
  box-shadow:var(--shadow-md);
  border-color:var(--primary);
}
.tier-step{
  flex:none;
  width:50px;
  height:50px;
  border-radius:15px;
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:800;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1rem;
}
.tier-item:nth-child(3) .tier-step{
  background:var(--orange);
  color:#fff;
}
.tier-info{flex:1}
.tier-info h3{
  font-size:1.18rem;
  margin-bottom:6px;
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.badge-mid{
  display:inline-block;
  background:#fff8f5;
  color:var(--orange);
  border:1px solid #ffd4c2;
  padding:3px 11px;
  border-radius:var(--radius-pill);
  font-size:.72rem;
  font-weight:600;
}
.tier-info p{
  color:var(--muted);
  font-size:.92rem;
  margin-bottom:12px;
}
.tier-list{
  list-style:none;
  padding:0;
  display:grid;
  gap:8px;
}
.tier-list li{
  position:relative;
  padding-left:20px;
  color:var(--ink);
  font-size:.9rem;
}
.tier-list li::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--primary);
  position:absolute;
  left:0;
  top:.72em;
}

/* 方案对比 */
.compare-table-box{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.table-scroll{overflow-x:auto}
.plan-table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  min-width:760px;
}
.plan-table th{
  text-align:left;
  padding:19px 18px;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  vertical-align:middle;
}
.plan-table td{
  padding:15px 18px;
  border-bottom:1px solid var(--line-soft);
  text-align:center;
  font-size:.92rem;
  background:#fff;
}
.plan-table tr:last-child td{
  border-bottom:none;
}
.plan-table .feature-name{
  text-align:left;
  color:var(--ink);
  font-weight:600;
}
.plan-table .maybe-row td{
  background:#fbfdff;
}
.plan-table td.plan-label{
  background:#fbfdff;
  border-top:1px solid var(--line);
}
.plan-table th.recommand-col{
  position:relative;
  background:#f7fbff;
  border-left:1px solid var(--line);
  border-right:1px solid var(--line);
}
.plan-table td.recommand-col{
  background:#fbfdff;
  border-left:1px solid var(--line);
  border-right:1px solid var(--line);
}
.price-tag{
  display:block;
  color:var(--muted);
  font-size:.82rem;
  font-weight:500;
  margin-top:2px;
}
.rec-pill{
  position:absolute;
  top:-1px;
  left:20px;
  right:20px;
  background:var(--primary);
  color:#fff;
  border-radius:0 0 8px 8px;
  padding:3px 0;
  font-size:.7rem;
  text-align:center;
  font-weight:600;
}
.table-tick,.table-miss{
  font-weight:700;
  display:inline-flex;
  align-items:center;
  gap:4px;
  font-size:.9rem;
}
.table-tick{color:var(--success)}
.table-miss{color:#a6b1c0}
.free-note{
  color:var(--muted);
  font-size:.76rem;
  display:block;
  line-height:1.4;
}

/* 深色 CTA */
.deal-section{
  background:var(--navy);
  color:#fff;
  padding:74px 0;
  position:relative;
  overflow:hidden;
}
.deal-section::before{
  content:"";
  position:absolute;
  right:-80px;
  top:-120px;
  width:360px;
  height:360px;
  border-radius:50%;
  background:rgba(23,105,224,.2);
  filter:blur(20px);
}
.deal-section::after{
  content:"";
  position:absolute;
  left:-40px;
  bottom:-180px;
  width:300px;
  height:300px;
  border-radius:50%;
  background:rgba(255,106,61,.16);
  filter:blur(30px);
}
.deal-inner{
  position:relative;
  z-index:1;
  max-width:860px;
}
.deal-inner .kicker{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.24);
  color:#cfe1fb;
}
.deal-inner h2{
  font-size:clamp(1.7rem,3vw,2.4rem);
  margin-bottom:18px;
  letter-spacing:-.2px;
}
.deal-inner p{
  color:#ccd7e8;
  font-size:1.02rem;
  max-width:580px;
  line-height:1.85;
}
.deal-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.deal-time-badge{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#dbe9fb;
  font-size:.86rem;
  margin-top:22px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.15);
  border-radius:var(--radius-pill);
  padding:8px 16px;
}
.time-ico{width:8px;height:8px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 5px rgba(255,106,61,.16)}

/* 资讯 CMS */
.latest-layout{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.34fr);
  gap:38px;
  align-items:start;
}
.input-head{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  margin-bottom:22px;
  flex-wrap:wrap;
}
.input-head h2{
  margin-bottom:0;
}

.cms-featured{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .25s var(--ease),transform .25s var(--ease);
}
.cms-featured:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.cms-featured-img{
  aspect-ratio:16/8.6;
  background:var(--primary-soft);
}
.cms-featured-img img{width:100%;height:100%;object-fit:cover}
.cms-featured-body{padding:26px 28px}
.cms-featured-body h3{font-size:1.3rem;margin-bottom:10px}
.cms-featured-body h3 a{color:var(--ink)}
.cms-featured-body h3 a:hover{color:var(--primary)}
.cms-featured-body p{color:var(--muted);font-size:.95rem;margin-bottom:12px}
.meta-line{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  color:var(--muted);
  font-size:.8rem;
}
.cms-list-stack{
  display:grid;
  gap:14px;
}
.news-row{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:20px 22px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.news-row:hover{
  border-color:#c6dbf6;
  box-shadow:var(--shadow-sm);
}
.news-row h3{
  font-size:1.02rem;
  margin-bottom:7px;
  line-height:1.5;
}
.news-row h3 a{color:var(--ink);font-weight:650}
.news-row h3 a:hover{color:var(--primary)}
.news-row p{
  color:var(--muted);
  font-size:.89rem;
  line-height:1.65;
  margin-bottom:8px;
}
.news-row .meta-line{font-size:.78rem}
.post-badge{
  display:inline-block;
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-size:.75rem;
  font-weight:600;
  border-radius:var(--radius-pill);
  padding:2px 10px;
}
.post-time{color:var(--muted)}
.read-more{
  color:var(--primary);
  font-weight:600;
  font-size:.82rem;
  margin-left:auto;
}

.cms-empty{
  grid-column:1/-1;
  background:#fff;
  border:1px dashed #b6cce8;
  border-radius:var(--radius-lg);
  margin-top:20px;
  padding:70px 24px;
  text-align:center;
  color:var(--muted);
}
.empty-ico{
  width:50px;
  height:50px;
  margin:0 auto 16px;
  border-radius:50%;
  background:var(--primary-soft);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--primary);
  font-size:1.4rem;
  font-weight:700;
}

/* 咨询区 */
.contact-section{
  background:#fff;
  border-top:1px solid var(--line);
}
.contact-grid{
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);
  gap:60px;
  align-items:center;
}
.contact-copy h2{
  font-size:clamp(1.6rem,2.8vw,2.1rem);
  margin-bottom:16px;
}
.contact-copy p{color:var(--muted)}
.contact-features{
  list-style:none;
  padding:0;
  margin-top:24px;
  display:grid;
  gap:12px;
}
.contact-features li{
  display:flex;
  align-items:center;
  gap:12px;
  color:var(--ink);
  font-size:.92rem;
}
.contact-features .cf-dot{
  width:13px;
  height:13px;
  border-radius:50%;
  border:3px solid var(--primary-soft);
  background:var(--primary);
}
.form-card{
  background:#fbfdff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:36px 34px;
  box-shadow:var(--shadow-sm);
  display:grid;
  gap:18px;
}
.form-group{
  display:grid;
  gap:8px;
}
.form-group label{
  font-size:.88rem;
  font-weight:650;
  color:var(--ink);
}
.form-group input,.form-group select,.form-group textarea{
  width:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:12px 14px;
  font-size:.95rem;
  transition:border .2s var(--ease),box-shadow .2s var(--ease);
  appearance:none;
  -webkit-appearance:none;
}
.form-group textarea{resize:vertical;min-height:112px}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:0;
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(23,105,224,.12);
}
.form-group .hint{
  font-size:.78rem;
  color:var(--muted);
}
.form-note{
  font-size:.78rem;
  color:var(--muted);
  margin-top:2px;
}

/* FAQ */
.faq-section{
  background:var(--bg);
  border-top:1px solid var(--line);
}
.faq-wrap{
  max-width:860px;
  margin:0 auto;
}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:15px;
  margin-bottom:13px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item[open]{
  border-color:#c9ddf6;
  box-shadow:var(--shadow-sm);
}
.faq-item summary{
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  list-style:none;
  padding:18px 23px;
  font-weight:650;
  font-size:.98rem;
  border-radius:15px;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-icon{
  flex:none;
  width:28px;
  height:28px;
  border-radius:50%;
  background:var(--primary-soft);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1rem;
  font-weight:700;
  transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease);
}
.faq-item[open] .faq-icon{
  transform:rotate(45deg);
  background:var(--primary);
  color:#fff;
}
.faq-answer{
  padding:0 23px 22px;
  color:var(--muted);
  font-size:.94rem;
  line-height:1.9;
  max-width:55rem;
}

/* 页脚 */
.footer{
  background:#edf2f7;
  border-top:1px solid var(--line);
  padding-top:64px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:44px;
  padding-bottom:44px;
}
.footer-brand-text{
  font-size:1.15rem;
  font-weight:800;
  display:flex;
  align-items:center;
  color:var(--ink);
  margin-bottom:12px;
}
.footer p{
  color:#42536a;
  font-size:.9rem;
  max-width:27rem;
}
.footer-h4{
  font-size:.93rem;
  font-weight:700;
  color:var(--ink);
  margin-bottom:14px;
}
.footer-links{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap:9px;
}
.footer-links a{
  color:#42536a;
  font-size:.9rem;
}
.footer-links a:hover{
  color:var(--primary);
}
.footer-bottom{
  border-top:1px solid #d9e2ec;
  padding:22px 0 28px;
  display:flex;
  flex-wrap:wrap;
  gap:12px 26px;
  justify-content:space-between;
  color:#6c7b90;
  font-size:.82rem;
}

/* 响应式 */
@media (max-width:1100px){
  .hero-inner{gap:44px}
  .tier-grid{gap:42px}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:992px){
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .notice-strip-inner{grid-template-columns:repeat(1,1fr);gap:16px}
  .hero-inner{grid-template-columns:1fr;gap:54px}
  .hero-visual{max-width:620px}
  .tier-grid{grid-template-columns:1fr}
  .tier-aside{position:static}
  .latest-layout{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr;gap:38px}
  .compare-table-box{overflow-x:auto}
}
@media (max-width:768px){
  :root{--header-h:62px}
  body{font-size:.97rem}
  .section{padding:66px 0}
  .nav-toggle{display:inline-flex}
  .nav-row{justify-content:flex-end}
  .site-nav{
    position:absolute;
    top:calc(var(--header-h) - 1px);
    left:0;
    right:0;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    padding:10px 16px 18px;
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 32px rgba(16,30,50,.08);
    display:none;
    gap:4px;
  }
  .site-nav.open{display:flex}
  .nav-link{
    padding:12px 16px;
    border-radius:12px;
  }
  .nav-link::after{display:none}
  .nav-cta{margin:8px 0 0}
  .nav-cta{width:100%}
  .tier-item:nth-child(2),.tier-item:nth-child(3){transform:none}
  .entry-grid{grid-template-columns:1fr}
  .deal-actions{flex-direction:column;align-items:flex-start}
  .footer-top{grid-template-columns:1fr;gap:34px}
  .hero{padding:70px 0 74px}
  .hero-actions .btn{width:100%}
  .plan-table th,.plan-table td{padding:13px 12px;font-size:.85rem}
}
@media (max-width:520px){
  .container{width:min(var(--container),calc(100% - 28px))}
  .entry-grid{grid-template-columns:1fr}
  .entry-card{padding:24px 20px}
  .hero-metrics{gap:20px 24px}
  .tier-item{flex-direction:column;gap:14px;padding:22px}
  .tier-step{width:42px;height:42px}
  .cms-featured-body,.news-row{padding:19px 17px}
  .form-card{padding:26px 20px}
  .contact-features li{flex-wrap:wrap}
  .faq-item summary{padding:17px 18px;font-size:.92rem}
  .footer-brand-text{font-size:1.06rem}
  .hero h1{font-size:1.86rem}
}

/* roulang page: article */
:root{
  --brand:#1769E0;
  --brand-dark:#0d59c4;
  --brand-soft:#E8F1FC;
  --ink:#101D2E;
  --text-2:#5D6B7E;
  --line:#D7DFEA;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --accent:#FF6A3D;
  --navy:#082148;
  --ok:#0B7A5A;
  --danger:#D92D20;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:9px;
  --shadow:0 1px 2px rgba(16,30,50,.04),0 10px 30px rgba(16,30,50,.06);
  --shadow-lg:0 2px 4px rgba(16,30,50,.05),0 22px 46px rgba(16,30,50,.10);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:#fff;
  color:var(--ink);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-dark)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
.container{
  width:min(1180px,100% - clamp(24px,5vw,56px));
  margin-inline:auto;
  max-width:100%;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-sm);
  font-weight:600;
  font-size:.9375rem;
  line-height:1;
  padding:14px 24px;
  border:1px solid transparent;
  background:var(--brand);
  color:#fff;
  transition:background .2s ease,transform .18s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
  box-shadow:0 6px 16px rgba(23,105,224,.18);
}
.btn:hover{
  background:var(--brand-dark);
  color:#fff;
  box-shadow:0 8px 22px rgba(23,105,224,.26);
  transform:translateY(-2px);
}
.btn:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  color:var(--ink);
  border-color:var(--line);
  box-shadow:none;
}
.btn-ghost:hover{
  background:#fff;
  color:var(--brand);
  border-color:#b9c9dc;
  box-shadow:none;
}
.btn-lg{padding:16px 30px;font-size:1rem;border-radius:12px}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid rgba(23,105,224,.55);
  outline-offset:2px;
}
/* ======= 导航 ======= */
.site-header{
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  position:relative;
  z-index:30;
}
.header-row{
  height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  font-weight:800;
  font-size:1.2rem;
  letter-spacing:.01em;
  flex-shrink:0;
}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  background:var(--brand);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:.95rem;
  font-weight:800;
  letter-spacing:.02em;
  box-shadow:0 6px 14px rgba(23,105,224,.25);
}
.brand-badge{
  font-size:.72rem;
  color:var(--brand);
  background:var(--brand-soft);
  border-radius:999px;
  padding:3px 9px;
  font-weight:600;
  margin-left:2px;
}
.site-nav{
  display:flex;
  align-items:center;
  gap:32px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  color:#33415a;
  font-size:.96rem;
  font-weight:500;
  line-height:76px;
  transition:color .18s ease;
  padding:0 2px;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-1px;
  height:3px;
  width:0;
  border-radius:999px;
  background:var(--brand);
  transition:width .24s ease;
}
.nav-link:hover{
  color:var(--ink);
}
.nav-link:hover::after{
  width:100%;
}
.nav-link.active{
  color:var(--ink);
  font-weight:700;
}
.nav-link.active::after{
  width:100%;
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:999px;
  padding:10px 19px;
  background:var(--brand);
  color:#fff;
  font-size:.9rem;
  font-weight:600;
  transition:background .2s ease,transform .18s ease;
  box-shadow:0 5px 12px rgba(23,105,224,.16);
  line-height:1;
}
.nav-cta:hover{
  background:var(--brand-dark);
  color:#fff;
  transform:translateY(-1px);
}
.menu-toggle{
  display:none;
  width:44px;
  height:44px;
  border:none;
  background:#fff;
  border-radius:10px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  border:1px solid var(--line);
  padding:0;
}
.menu-toggle span{
  width:19px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .25s ease,opacity .2s ease;
}
/* ======= 面包屑 ======= */
.breadcrumb-line{
  padding:22px 0 0;
}
.breadcrumb-nav{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:.87rem;
  color:var(--text-2);
}
.breadcrumb-nav a{
  color:var(--text-2);
  transition:color .15s;
}
.breadcrumb-nav a:hover{color:var(--brand)}
.breadcrumb-nav .sep{color:#9fb0c0;user-select:none}
.breadcrumb-nav .crumb-now{
  color:#2d3a4c;
  max-width:300px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
/* ======= 文章主体 ======= */
.article-main{
  background:var(--bg);
  padding-bottom:36px;
}
.article-shell{
  padding-top:16px;
  padding-bottom:54px;
}
.article-card{
  background:#fff;
  border:1px solid rgba(215,223,234,.78);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:clamp(26px,5vw,60px);
  max-width:964px;
  margin-inline:auto;
}
.article-head{
  text-align:center;
  max-width:780px;
  margin-inline:auto;
  padding-bottom:30px;
  border-bottom:1px solid var(--line);
}
.article-topline{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:16px;
}
.article-tag{
  display:inline-block;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:.8rem;
  font-weight:600;
  border-radius:999px;
  padding:5px 13px;
  letter-spacing:.02em;
}
.article-idx{
  display:inline-block;
  font-size:.8rem;
  color:var(--text-2);
  border:1px solid var(--line);
  border-radius:999px;
  padding:4px 12px;
}
.article-title{
  font-size:clamp(1.72rem,3.4vw,2.75rem);
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
  margin-bottom:18px;
  text-wrap:balance;
}
.article-meta{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px 22px;
  flex-wrap:wrap;
  font-size:.87rem;
  color:var(--text-2);
}
.article-meta .meta-dot{
  width:4px;height:4px;
  background:#c1cbd8;
  border-radius:50%;
}
.article-source{
  color:#40516a;
  font-weight:500;
}
.article-content{
  max-width:760px;
  margin:0 auto;
  padding-top:38px;
}
.article-content > *{
  margin-bottom:1.4em;
}
.article-content h2{
  font-size:clamp(1.38rem,2.5vw,1.75rem);
  line-height:1.4;
  color:var(--ink);
  font-weight:750;
  margin:2em 0 .7em;
  padding-top:.3em;
}
.article-content h3{
  font-size:1.24rem;
  line-height:1.45;
  color:var(--ink);
  font-weight:700;
  margin:1.8em 0 .6em;
}
.article-content p{
  font-size:1.035rem;
  line-height:1.8;
  color:#233041;
}
.article-content ul,.article-content ol{
  margin:1.3em 0 1.5em;
  padding-left:0;
}
.article-content ul li,.article-content ol li{
  position:relative;
  padding-left:25px;
  margin-bottom:.65em;
  color:#26334a;
}
.article-content ul li::before{
  content:"";
  position:absolute;
  left:5px;
  top:.7em;
  width:7px;height:7px;
  border-radius:3px;
  background:var(--brand);
}
.article-content ol{counter-reset:ai-list}
.article-content ol li{counter-increment:ai-list}
.article-content ol li::before{
  content:counter(ai-list) ".";
  position:absolute;
  left:0;
  top:0;
  font-weight:650;
  color:var(--brand);
}
.article-content a{
  color:var(--brand);
  border-bottom:1px solid rgba(23,105,224,.25);
}
.article-content a:hover{
  color:var(--brand-dark);
  border-color:var(--brand);
}
.article-content blockquote{
  margin:1.9em 0;
  padding:8px 0 8px 22px;
  border-left:3px solid var(--brand);
  background:#f7faff;
  border-radius:0 12px 12px 0;
  color:#4b5a6e;
  font-size:1rem;
}
.article-content blockquote p{
  color:#4b5a6e;
  margin-bottom:.4em;
}
.article-content img{
  margin:1.8em auto;
  border-radius:14px;
  box-shadow:var(--shadow);
}
.article-content figure{
  margin:1.9em 0;
  text-align:center;
}
.article-content figcaption{
  margin-top:10px;
  font-size:.85rem;
  color:var(--text-2);
}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:1.7em 0;
  font-size:.94rem;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
}
.article-content table th,.article-content table td{
  padding:13px 15px;
  border-bottom:1px solid var(--line);
  text-align:left;
  color:#28364a;
}
.article-content table th{
  background:#f4f8fc;
  font-weight:600;
}
.article-content table tr:last-child td{border-bottom:none}
.article-content hr{
  border:none;
  border-top:1px solid var(--line);
  margin:2.4em 0;
}
.article-tail{
  max-width:760px;
  margin:0 auto;
  padding-top:26px;
  margin-top:46px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:.88rem;
  color:var(--text-2);
}
.article-tail a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:600;
  color:#36455d;
}
.article-tail a:hover{color:var(--brand)}
/* ======= 相关栏目 ======= */
.related-box{
  padding:0 0 58px;
}
.related-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  margin-bottom:26px;
}
.related-head h2{
  font-size:1.65rem;
  font-weight:800;
  color:var(--ink);
  line-height:1.3;
}
.related-head p{
  color:var(--text-2);
  font-size:.9rem;
  max-width:460px;
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.related-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  box-shadow:0 2px 10px rgba(16,30,50,.03);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.related-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:#c5d6e9;
}
.related-card a{
  display:block;
  color:var(--ink);
}
.related-media{
  display:block;
  aspect-ratio:16/9;
  overflow:hidden;
  background:#eaf1f9;
}
.related-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.related-card:hover .related-media img{
  transform:scale(1.045);
}
.related-body{
  padding:22px 22px 24px;
}
.related-body h3{
  font-size:1.1rem;
  font-weight:700;
  line-height:1.45;
  margin-bottom:8px;
}
.related-body p{
  color:var(--text-2);
  font-size:.9rem;
  line-height:1.7;
}
.related-link{
  display:inline-block;
  margin-top:14px;
  font-weight:600;
  font-size:.9rem;
  color:var(--brand);
}
.related-card:hover .related-link{
  text-decoration:underline;
}
/* ======= 底部咨询 ======= */
.contact-box{
  padding:0 0 56px;
}
.contact-card{
  background:var(--navy);
  border-radius:22px;
  padding:clamp(26px,4.2vw,48px);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  position:relative;
  overflow:hidden;
}
.contact-card::before{
  content:"";
  position:absolute;
  inset:auto -80px -120px auto;
  width:340px;height:340px;
  border-radius:50%;
  background:rgba(255,255,255,.05);
  pointer-events:none;
}
.contact-card::after{
  content:"";
  position:absolute;
  right:160px;bottom:-160px;
  width:220px;height:220px;
  border-radius:50%;
  background:rgba(255,255,255,.04);
  pointer-events:none;
}
.contact-copy{
  position:relative;
  z-index:1;
  flex:1 1 380px;
}
.contact-copy .contact-kicker{
  font-size:.8rem;
  letter-spacing:.08em;
  color:#a8c4ed;
  margin-bottom:10px;
  display:block;
}
.contact-copy h2{
  font-size:clamp(1.3rem,2.4vw,1.85rem);
  font-weight:750;
  line-height:1.35;
  color:#fff;
  margin-bottom:10px;
}
.contact-copy p{
  color:#b2c9e8;
  font-size:.95rem;
  max-width:560px;
}
.contact-action{
  position:relative;
  z-index:1;
  display:flex;
  flex-direction:column;
  gap:14px;
  align-items:flex-start;
}
.btn-white{
  background:#fff;
  color:var(--navy);
  box-shadow:0 8px 22px rgba(0,0,0,.16);
}
.btn-white:hover{
  background:#f1f6ff;
  color:var(--brand);
  box-shadow:0 10px 24px rgba(0,0,0,.22);
}
.contact-mail-link{
  color:#b9d1f4;
  font-size:.9rem;
  border-bottom:1px solid rgba(255,255,255,.25);
  padding-bottom:2px;
}
.contact-mail-link:hover{
  color:#fff;
  border-color:#fff;
}
/* ======= 未找到 ======= */
.notfound-wrap{
  padding:86px 0 110px;
}
.notfound-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--shadow);
  max-width:620px;
  margin:0 auto;
  text-align:center;
  padding:clamp(40px,6vw,72px) 30px;
}
.notfound-card .nf-mark{
  width:64px;height:64px;
  border-radius:18px;
  background:var(--brand-soft);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.8rem;
  font-weight:800;
  color:var(--brand);
  margin:0 auto 22px;
}
.notfound-card h1{
  font-size:1.7rem;
  font-weight:800;
  color:var(--ink);
  margin-bottom:10px;
}
.notfound-card p{
  color:var(--text-2);
  max-width:420px;
  margin:0 auto 26px;
}
/* ======= 页脚 ======= */
.footer{
  margin-top:auto;
  background:#EDF2F7;
  border-top:1px solid #dfe6ee;
  padding-top:48px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.15fr;
  gap:40px;
  padding-bottom:38px;
}
.footer-brand-text{
  display:flex;
  align-items:center;
  font-size:1.15rem;
  font-weight:800;
  color:var(--ink);
  margin-bottom:12px;
  line-height:1.2;
}
.footer-brand-text .brand-mark{
  width:32px;height:32px;
  font-size:.9rem;
  border-radius:9px;
  margin-right:4px;
}
.footer-top p{
  color:#42536A;
  font-size:.9rem;
  line-height:1.8;
  max-width:320px;
}
.footer-h4{
  font-size:.98rem;
  font-weight:700;
  color:#1f2b3a;
  margin-bottom:15px;
  line-height:1.4;
}
.footer-links li{
  margin-bottom:9px;
}
.footer-links a{
  color:#42536A;
  font-size:.9rem;
  transition:color .15s ease;
}
.footer-links a:hover{
  color:var(--brand);
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:12px 28px;
  flex-wrap:wrap;
  color:#41536c;
  border-top:1px solid #d7e0e9;
  padding:18px 0 26px;
  font-size:.84rem;
}
/* ======= 响应式 ======= */
@media (max-width:1024px){
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1.5fr 1fr 1fr}
}
@media (max-width:780px){
  .menu-toggle{
    display:flex;
    margin-left:auto;
  }
  .header-row{
    height:62px;
    position:relative;
  }
  .site-header{
    background:#fff;
  }
  body.nav-lock{overflow:hidden}
  .site-nav{
    position:fixed;
    top:0;
    right:0;
    height:100%;
    width:min(78vw,360px);
    background:#fff;
    border-left:1px solid var(--line);
    box-shadow:-22px 0 60px rgba(10,26,44,.16);
    flex-direction:column;
    align-items:flex-start;
    justify-content:flex-start;
    gap:8px;
    padding:88px 30px 36px;
    transform:translateX(104%);
    transition:transform .32s ease;
    margin:0;
    z-index:100;
    overflow-y:auto;
  }
  .site-header.nav-open .site-nav{
    transform:translateX(0);
  }
  .site-nav::before{
    content:"";
    position:fixed;
    inset:0;
    width:100%;
    height:100%;
    background:rgba(8,33,72,.3);
    z-index:-1;
    opacity:0;
    visibility:hidden;
    transition:opacity .25s;
  }
  .site-header.nav-open .site-nav::before{
    opacity:1;
    visibility:visible;
  }
  .nav-link{
    width:100%;
    line-height:1.5;
    font-size:1.02rem;
    font-weight:600;
    padding:13px 2px;
    color:#233349;
    border-bottom:1px solid #e9edf2;
  }
  .nav-link::after{
    display:none;
  }
  .nav-link.active{
    color:var(--brand);
    border-bottom-color:var(--brand);
    background:linear-gradient(90deg,#eef4fd,transparent);
  }
  .nav-cta{
    margin-top:22px;
    width:100%;
    text-align:center;
    border-radius:12px;
    font-size:1rem;
    padding:16px 20px;
  }
  .menu-toggle{
    position:relative;
    z-index:110;
  }
  .site-header.nav-open .menu-toggle span:nth-child(1){
    transform:translateY(7px) rotate(45deg);
  }
  .site-header.nav-open .menu-toggle span:nth-child(2){
    opacity:0;
  }
  .site-header.nav-open .menu-toggle span:nth-child(3){
    transform:translateY(-7px) rotate(-45deg);
  }
  .breadcrumb-nav .crumb-now{
    max-width:40vw;
  }
  .article-card{
    padding:30px 22px;
    border-radius:14px;
  }
  .article-content{
    padding-top:34px;
  }
  .article-content p{
    font-size:1rem;
  }
  .article-tail{
    flex-direction:column;
    align-items:flex-start;
  }
  .related-head{
    flex-direction:column;
    align-items:flex-start;
    gap:6px;
  }
  .contact-card{
    flex-direction:column;
    align-items:flex-start;
  }
  .contact-action{
    width:100%;
  }
  .btn-white{
    width:100%;
  }
  .footer-top{
    grid-template-columns:1fr 1fr;
    gap:30px 22px;
  }
}
@media (max-width:560px){
  .related-grid{grid-template-columns:1fr}
  .footer-top{
    grid-template-columns:1fr;
    gap:26px;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
  }
  .article-meta{
    gap:8px 14px;
  }
  .article-title{
    font-size:1.6rem;
    line-height:1.35;
  }
  .article-content blockquote{
    padding-left:15px;
  }
  .contact-box .btn{
    width:100%;
  }
}

/* roulang page: category2 */
:root{
  --primary:#1769E0;
  --primary-deep:#0f4bb3;
  --primary-light:#E8F1FC;
  --primary-muted:#f4f8fe;
  --accent:#FF6A3D;
  --text:#101D2E;
  --text-soft:#5D6B7E;
  --bg:#F6F8FB;
  --white:#FFFFFF;
  --line:#D7DFEA;
  --deep:#082148;
  --danger:#D92D20;
  --success:#0B7A5A;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-sm:0 1px 2px rgba(16,30,50,.04),0 10px 30px rgba(16,30,50,.06);
  --shadow-md:0 2px 6px rgba(16,30,50,.06),0 24px 48px rgba(16,30,50,.09);
  --container:1200px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;scroll-behavior:smooth}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  font-size:1rem;
  min-height:100vh;
}
ul,ol{list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
:focus-visible{outline:3px solid rgba(23,105,224,.45);outline-offset:2px;border-radius:4px}

.container{width:min(var(--container),100% - clamp(40px,8vw,80px));margin-inline:auto}
.section{padding-block:clamp(70px,8vw,112px)}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px;
}
.section-head h2{
  font-size:clamp(1.65rem,2.6vw,2.15rem);
  font-weight:800;line-height:1.3;letter-spacing:-.01em;
}
.section-head p{
  color:var(--text-soft);
  max-width:560px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary-light);color:var(--primary-deep);
  font-size:.8rem;font-weight:700;letter-spacing:.02em;
  padding:6px 12px;border-radius:999px;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:10px;padding:12px 22px;
  font-size:.95rem;font-weight:700;
  transition:.24s ease;border:1px solid transparent;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-2px);box-shadow:0 10px 24px rgba(23,105,224,.2)}
.btn-dark{background:var(--deep);color:#fff}
.btn-dark:hover{background:#0d2d60;transform:translateY(-2px)}
.btn-outline{border-color:var(--line);background:var(--white);color:var(--text)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-white{background:#fff;color:var(--primary-deep)}
.btn-white:hover{background:var(--primary-light);color:var(--primary-deep)}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.95);
  border-bottom:1px solid var(--line);
}
.header-flex{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:76px;
}
.brand-logo{display:inline-flex;align-items:center;gap:11px;font-size:1.2rem;font-weight:900;letter-spacing:.01em}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--deep);display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-weight:800;font-size:1rem;flex:0 0 auto;
}
.brand-name{display:inline-flex;white-space:nowrap}
.site-nav{display:flex;align-items:center;gap:clamp(20px,3vw,36px)}
.nav-link{
  position:relative;font-size:.95rem;font-weight:600;color:var(--text-soft);
  padding:26px 0 20px;transition:.2s;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:-1px;height:4px;
  border-radius:999px;background:var(--primary);transition:right .25s;
}
.nav-link:hover,.nav-link.active{color:var(--text)}
.nav-link.active::after{right:0}
.nav-link.active::before{
  content:"";position:absolute;left:calc(50% - 3px);bottom:7px;
  width:6px;height:6px;border-radius:50%;background:var(--primary);
}
.nav-cta{
  background:var(--primary-light);color:var(--primary-deep);
  border-radius:999px;font-size:.9rem;font-weight:700;
  padding:9px 18px;transition:.2s;
}
.nav-cta:hover{background:var(--primary);color:#fff}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;border:1px solid var(--line);
  background:var(--white);
}
.nav-toggle svg{width:21px;height:21px;stroke:var(--text)}
.badge-sub{font-size:.65rem;background:var(--accent);color:#fff;border-radius:6px;padding:2px 6px;font-weight:600;vertical-align:super;letter-spacing:.02em}

/* Hero */
.page-hero{
  background:
    linear-gradient(120deg,rgba(235,245,255,.96) 15%,rgba(235,245,255,.72) 55%,rgba(235,245,255,.35)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero-category{
  position:relative;
  padding:clamp(44px,8vw,10px) 0 clamp(50px,6vw,68px);
}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,3fr) minmax(280px,1.4fr);
  gap:48px;align-items:center;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:.85rem;color:var(--text-soft);margin-bottom:24px;
}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#a9b8c9}
.hero-category h1{
  font-size:clamp(2rem,4.2vw,3.4rem);
  line-height:1.2;font-weight:800;letter-spacing:-.01em;
  margin-bottom:18px;
}
.hero-category h1 .h1-soft{color:var(--primary)}
.lead{
  font-size:1.1rem;color:var(--text-soft);max-width:58ch;line-height:1.8;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-radar{
  background:var(--white);border:1px solid rgba(215,223,234,.8);
  box-shadow:var(--shadow-sm);border-radius:var(--radius-lg);
  padding:28px;
}
.radar-num{
  font-size:2.1rem;font-weight:800;color:var(--primary);line-height:1;
}
.radar-meta{margin-top:14px}
.radar-bar{height:6px;background:var(--primary-light);border-radius:99px;overflow:hidden;margin:16px 0 12px}
.radar-bar span{display:block;height:100%;width:86%;background:var(--primary);border-radius:99px}
.radar-text{font-size:.9rem;color:var(--text-soft)}
.mini-tip{
  margin-top:22px;padding-top:18px;border-top:1px dashed var(--line);
  display:flex;gap:12px;color:var(--text-soft);font-size:.92rem;
}

/* Featured section */
.feature-section{
  background:var(--bg);
}
.grid-feature{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
}
.feature-card{
  background:var(--white);border:1px solid #edf1f6;border-radius:var(--radius-lg);
  overflow:hidden;transition:.3s ease;padding:0 28px 26px;
  box-shadow:0 1px 3px rgba(16,30,50,.02);display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.card-media{width:calc(100% + 56px);margin-left:-28px;aspect-ratio:16/10;overflow:hidden}
.card-media img{
  width:100%;height:100%;object-fit:cover;transition:.5s ease;
}
.feature-card:hover .card-media img{transform:scale(1.04)}
.tag-sport{
  background:var(--primary-light);color:var(--primary-deep);
  border-radius:999px;padding:5px 12px;font-size:.78rem;font-weight:700;
  margin:18px 0 12px;position:relative;z-index:2;align-self:flex-start;
}
.feature-card h3{font-size:1.35rem;font-weight:750;line-height:1.45;margin-bottom:12px}
.feature-card p{color:var(--text-soft);font-size:.98rem;line-height:1.75;margin-bottom:22px}
.card-more{
  margin-top:auto;font-weight:700;color:var(--primary);font-size:.9rem;
  display:inline-flex;align-items:center;gap:6px;transition:gap .2s;
}
.card-more:hover{gap:9px;color:var(--primary-deep)}

/* Watch Journal - 时间线 */
.watch-line{
  background:var(--white);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.watch-list{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);
  border-radius:var(--radius-lg);background:var(--white);box-shadow:var(--shadow-sm);
}
.watch-step{
  padding:30px 26px;border-right:1px solid var(--line);position:relative;
  transition:.25s;
}
.watch-step:last-child{border-right:0}
.watch-step:hover{background:var(--primary-muted)}
.watch-index{
  font-size:.8rem;background:var(--primary-light);color:var(--primary-deep);
  border-radius:99px;padding:5px 13px;font-weight:800;display:inline-block;
}
.watch-step h3{font-size:1.14rem;margin:20px 0 9px;font-weight:750}
.watch-step p{color:var(--text-soft);font-size:.96rem;line-height:1.75}
.watch-icon{width:48px;height:48px;border-radius:14px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;font-size:1.6rem;margin-bottom:14px}

/* Simple Insight band */
.insight-band{
  background:var(--primary-muted);
}
.insight-grid{
  display:grid;grid-template-columns:repeat(12,1fr);gap:28px;align-items:center;
}
.insight-text{grid-column:span 7}
.insight-list{margin-top:18px;display:grid;gap:16px}
.insight-list li{display:flex;gap:16px}
.insight-list li::before{
  content:"第";flex:0 0 auto;
  width:46px;height:46px;border-radius:50%;
  background:var(--white);border:1px solid var(--line);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:1rem;font-weight:800;
}
.insight-list li div h3{font-size:1.05rem;font-weight:750}
.insight-list li div p{color:var(--text-soft);font-size:.96rem}
.insight-media{grid-column:span 5}
.insight-media .photo-card{
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);
}
.insight-media img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* deep mini cta */
.deep-band{background:var(--deep);color:#fff}
.deep-flex{
  display:flex;align-items:center;gap:34px;justify-content:space-between;
  flex-wrap:wrap;
}
.deep-band h2{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800;line-height:1.4}
.deep-band h2 mark{background:transparent;color:var(--accent)}
.deep-band p{color:#cad6e5;margin-top:8px;max-width:680px;line-height:1.8}

/* FAQ */
.faq-wrap{max-width:880px;margin-inline:auto}
.faq-item{
  border:1px solid var(--line);border-bottom:0;background:var(--white);
  transition:.2s;
}
.faq-item:first-child{border-radius:var(--radius-lg) var(--radius-lg) 0 0;overflow:hidden}
.faq-item:last-child{border-radius:0 0 var(--radius-lg) var(--radius-lg);overflow:hidden;border-bottom:1px solid var(--line)}
.faq-question{
  width:100%;text-align:left;padding:22px 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:1rem;font-weight:750;
}
.faq-question:hover{color:var(--primary)}
.faq-item.open .faq-question{color:var(--primary)}
.faq-icon{width:30px;height:30px;border-radius:50%;position:relative;background:var(--primary-light);flex:0 0 auto;transition:.3s}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--primary-deep);width:12px;height:2px;border-radius:2px}
.faq-icon::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-answer{display:none;padding:0 28px 26px;color:var(--text-soft);font-size:.96rem;line-height:1.9;border-top:1px dashed var(--line);margin-top:2px}
.faq-item.open .faq-answer{display:block}

/* contact CTA */
.contact-zone{
  background:var(--white);
}
.contact-panel{
  background:var(--primary-muted);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:clamp(26px,5vw,54px);
  display:grid;grid-template-columns:1fr minmax(250px,.8fr);gap:30px;align-items:center;
}
.contact-panel h2{font-size:1.65rem;font-weight:800;line-height:1.4}
.contact-panel p{color:var(--text-soft);margin-top:12px}
.contact-actions{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap}

/* Footer */
.footer{
  background:#EDF2F7;
  margin-top:auto;
}
.footer-top{
  display:grid;grid-template-columns:1.8fr 1fr 1fr 1.4fr;gap:34px;
  padding:60px 0 40px;
}
.footer-brand-text{display:flex;align-items:center;gap:11px;font-size:1.32rem;font-weight:900;color:var(--text)}
.footer-brand-text .brand-mark{width:28px;height:28px;font-size:.78rem;border-radius:9px}
.footer-top p{color:#42536A;font-size:.94rem;line-height:1.8;margin-top:14px;max-width:380px}
.footer-h4{font-size:1rem;color:var(--text);margin-bottom:18px;font-weight:800}
.footer-links{display:grid;gap:13px}
.footer-links a,.footer-links span{color:#42536A;font-size:.93rem;transition:.2s}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid #d7dfe7;
  padding:20px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  color:var(--text-soft);font-size:.84rem;
}

/* Mobile */
@media (max-width: 1180px){
  .grid-feature{grid-template-columns:repeat(2,1fr)}
  .watch-list{grid-template-columns:repeat(2,1fr)}
  .watch-step:nth-child(2){border-right:0}
  .watch-step:nth-child(-n+2){border-bottom:1px solid var(--line)}
}
@media (max-width: 992px){
  .brand-name,.brand-logo span.txt{font-size:1.05rem}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .footer-top{grid-template-columns:repeat(2,1fr)}
  .insight-text{grid-column:span 12}
  .insight-media{grid-column:span 12}
  .contact-panel{grid-template-columns:1fr}
}
@media (max-width: 768px){
  .header-flex{min-height:64px}
  .nav-toggle{display:flex;flex-direction:column}
  .site-nav{
    display:flex;flex-direction:column;align-items:flex-start;gap:6px;
    position:fixed;top:64px;left:0;right:0;background:#fff;
    padding:22px 28px 28px;box-shadow:0 22px 34px rgba(16,30,50,.08);
    border-bottom:1px solid var(--line);
    transform:translateY(-14px);opacity:0;visibility:hidden;
    transition:.24s;
    max-height:calc(100vh - 64px);overflow:auto;
  }
  .site-nav.open{transform:translateY(0);opacity:1;visibility:visible}
  .nav-link{width:100%;padding:14px 0;font-size:1.1rem}
  .nav-link::after{height:3px}
  .nav-cta{margin-top:12px;width:100%;text-align:center;padding:14px}
  .brand-logo .brand-name{display:inline}
  .breadcrumb{font-size:.76rem}
  .page-hero{padding:28px 0}
}
@media (max-width: 600px){
  .grid-feature{grid-template-columns:1fr}
  .watch-list{grid-template-columns:1fr}
  .watch-step{border-right:0!important;border-bottom:1px solid var(--line)}
  .watch-step:last-child{border-bottom:0}
  .footer-top{grid-template-columns:1fr}
  .hero-actions,.contact-actions{flex-direction:column;align-items:stretch}
  .btn{width:100%;text-align:center}
  .radar-num{font-size:1.6rem}
}
@media (max-width: 420px){
  .brand-logo{font-size:1rem}
  .brand-name{white-space:normal}
}

/* roulang page: category1 */
:root{
  --primary:#1769e0;
  --primary-deep:#0e56c0;
  --primary-dark:#082148;
  --primary-soft:#e8f1fc;
  --primary-mist:#eef5fc;
  --ink:#101d2e;
  --text:#33465c;
  --muted:#5d6b7e;
  --border:#d7dfea;
  --border-strong:#cfdbeb;
  --bg:#f6f8fb;
  --surface:#ffffff;
  --accent:#ff6a3d;
  --success:#0b7a5a;
  --error:#d92d20;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(16,30,50,.04), 0 10px 30px rgba(16,30,50,.06);
  --shadow-hover:0 6px 14px rgba(16,30,50,.07), 0 18px 40px rgba(16,30,50,.09);
  --container:1200px;
  --transition:.22s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:1rem;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body, h1, h2, h3, h4, p, ul, ol, figure, blockquote{margin:0;padding:0}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none}
img,svg,iframe{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{color:var(--ink);line-height:1.3;text-wrap:balance}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:750;line-height:1.3}
h3{font-size:1.15rem;font-weight:650;line-height:1.45}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(23,105,224,.28);
  outline-offset:2px;
  border-radius:4px;
}
::selection{background:var(--primary);color:#fff}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:clamp(20px,4vw,40px);
  padding-right:clamp(20px,4vw,40px);
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  border-radius:var(--radius-sm);
  padding:12px 24px;
  font-size:.9375rem;
  font-weight:700;
  line-height:1.2;
  color:#fff;
  background:var(--primary);
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--transition),border-color var(--transition),transform var(--transition),box-shadow var(--transition),color var(--transition);
}
.btn:hover{background:var(--primary-deep);transform:translateY(-2px);box-shadow:0 10px 24px rgba(23,105,224,.22)}
.btn:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--primary);border-color:#c5d7ef}
.btn-outline:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-light{background:#fff;color:var(--primary-dark);border-color:#fff}
.btn-light:hover{background:#e4edf8;color:var(--primary)}
.btn-line-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-line-light:hover{background:#fff;color:var(--primary-dark);border-color:#fff}

/* 顶部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--border);
}
.header-inner{
  height:76px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  flex-shrink:0;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  background:var(--primary);
  color:#fff;
  border-radius:11px;
  font-size:1.05rem;
  font-weight:800;
  box-shadow:0 6px 14px rgba(23,105,224,.25);
}
.brand-text{
  font-size:1.25rem;
  font-weight:800;
  letter-spacing:.01em;
  color:var(--ink);
}
.brand:hover .brand-mark{background:var(--primary-deep)}
.site-nav{
  display:flex;
  align-items:center;
  gap:clamp(18px,2.4vw,34px);
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:76px;
  font-size:.9375rem;
  color:#34465c;
  font-weight:550;
  transition:color var(--transition);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:4px;
  border-radius:99px;
  background:transparent;
  transform:scaleX(.35);
  transition:transform var(--transition),background var(--transition);
}
.nav-link:hover{color:var(--primary)}
.nav-link.active{color:var(--primary);font-weight:750}
.nav-link.active::after{background:var(--primary);transform:scaleX(1)}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:42px;
  padding:9px 18px;
  border-radius:99px;
  background:var(--primary);
  color:#fff;
  font-size:.875rem;
  font-weight:750;
  margin-left:8px;
  transition:background var(--transition),transform var(--transition);
}
.nav-cta:hover{background:var(--primary-deep);transform:translateY(-1px)}
.nav-toggle{
  display:none;
  background:transparent;
  border:0;
  width:46px;
  height:46px;
  margin-left:14px;
  border-radius:12px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:20px;
  height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:transform var(--transition),opacity var(--transition);
}
.nav-toggle.open span:first-child{transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:last-child{transform:translateY(-7px) rotate(-45deg)}

/* Hero */
.category-hero{
  position:relative;
  background:
    radial-gradient(circle at 86% 22%,rgba(23,105,224,.12),transparent 28%),
    linear-gradient(180deg,#edf4fd 0%,var(--bg) 100%);
  border-bottom:1px solid var(--border);
  overflow:hidden;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:clamp(36px,6vw,80px);
  align-items:center;
  padding-top:clamp(66px,9vw,100px);
  padding-bottom:clamp(70px,9vw,110px);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  background:#dcebfb;
  color:var(--primary);
  border-radius:99px;
  font-size:.8125rem;
  font-weight:750;
}
.eyebrow::before{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--accent);
  flex:0 0 auto;
}
.hero-copy h1{
  font-size:clamp(2.6rem,6vw,4.3rem);
  font-weight:800;
  line-height:1.1;
  margin:24px 0 20px;
  color:var(--primary-dark);
}
.hero-lead{
  font-size:clamp(1.05rem,1.6vw,1.25rem);
  color:var(--ink);
  font-weight:550;
  line-height:1.7;
  max-width:560px;
}
.hero-note{
  margin-top:16px;
  color:var(--muted);
  font-size:1rem;
  max-width:560px;
  line-height:1.85;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:34px;
}
.hero-art{
  position:relative;
}
.hero-art img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:20px;
  box-shadow:var(--shadow-hover);
}
.hero-sticker{
  position:absolute;
  left:clamp(12px,3vw,28px);
  bottom:-20px;
  display:inline-flex;
  align-items:center;
  gap:10px;
  background:var(--primary-dark);
  color:#fff;
  padding:12px 20px;
  padding-left:18px;
  border-radius:14px;
  font-size:.875rem;
  font-weight:650;
  box-shadow:0 14px 32px rgba(8,33,72,.24);
}
.sticker-dot{
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--accent);
  flex:0 0 auto;
  box-shadow:0 0 0 4px rgba(255,106,61,.24);
}

/* 通用区块 */
.section{padding:clamp(70px,9vw,110px) 0;background:#fff;position:relative}
.section-alt{background:var(--bg)}
.section-head{max-width:820px;margin-bottom:44px}
.section-kicker{display:inline-flex;margin-bottom:12px;color:var(--primary);font-weight:750;font-size:.875rem;letter-spacing:.04em}
.section-head h2{margin:0 0 16px}
.section-intro{font-size:1.0625rem;line-height:1.9;color:var(--muted);max-width:760px;margin:0}
.split-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px}
.split-head .section-intro{margin:0}

/* 信息卡片 */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.feature-card{
  background:var(--surface);
  border:1px solid #dfe8f2;
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow);
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.feature-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-hover);
  border-color:#bcd5f1;
}
.feature-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:13px;
  background:var(--primary);
  color:#fff;
  font-size:.875rem;
  font-weight:800;
  margin-bottom:18px;
  box-shadow:0 6px 14px rgba(23,105,224,.2);
}
.feature-card h3{margin-bottom:10px;font-size:1.1rem}
.feature-card p{color:var(--muted);font-size:.9375rem;line-height:1.85;margin:0}

/* 时间线 */
.timeline-box{
  max-width:840px;
  margin:10px auto 0;
  position:relative;
  padding-left:34px;
}
.timeline-box::before{
  content:"";
  position:absolute;
  left:8px;
  top:8px;
  bottom:10px;
  width:2px;
  background:linear-gradient(180deg,var(--primary) 0%,#c2d8f2 70%);
  border-radius:99px;
}
.timeline-item{
  position:relative;
  padding:0 0 34px 28px;
}
.timeline-item::before{
  content:"";
  position:absolute;
  left:-28px;
  top:8px;
  width:16px;
  height:16px;
  background:var(--primary);
  border:5px solid #e4effb;
  border-radius:50%;
  box-shadow:0 0 0 2px rgba(23,105,224,.3);
}
.timeline-meta{
  font-size:.8125rem;
  color:var(--primary);
  font-weight:750;
  margin-bottom:6px;
}
.timeline-item h3{margin-bottom:5px}
.timeline-item p{color:var(--muted);font-size:.9375rem;line-height:1.85;margin:0;max-width:680px}

/* 重点覆盖 */
.topic-list{display:grid;gap:30px}
.topic-card{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  background:#fff;
  border:1px solid #dfe8f2;
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:box-shadow var(--transition),border-color var(--transition),transform var(--transition);
}
.topic-card:hover{box-shadow:var(--shadow-hover);border-color:var(--primary);transform:translateY(-3px)}
.topic-media{position:relative;min-height:320px}
.topic-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.topic-content{padding:clamp(24px,4vw,44px)}
.topic-tag{
  display:inline-flex;
  align-items:center;
  padding:6px 13px;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:.8125rem;
  font-weight:750;
  border-radius:99px;
  margin-bottom:16px;
}
.topic-content h2{margin-bottom:12px}
.topic-content > p{color:var(--muted);font-size:.9375rem;margin-bottom:14px}
.topic-card.reversed .topic-media{order:2}
.topic-card.reversed .topic-content{order:1}
.check-list{margin-top:12px}
.check-list li{position:relative;padding-left:26px;margin-bottom:9px;font-size:.9375rem;line-height:1.7;color:var(--text)}
.check-list li::before{
  content:"✓";
  position:absolute;
  left:0;
  top:1px;
  color:var(--primary);
  font-weight:900;
}

/* 场景用法 */
.usage-box{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  border:1px solid #d8e4f1;
  background:#f3f8fd;
  border-radius:18px;
  overflow:hidden;
}
.usage-box li{
  padding:28px 30px;
  border-right:1px solid #d8e4f1;
}
.usage-box li:last-child{border-right:0}
.usage-step{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;
  height:32px;
  border-radius:50%;
  background:var(--primary);
  color:#fff;
  font-size:.8125rem;
  font-weight:800;
  margin-bottom:14px;
}
.usage-box h3{margin-bottom:8px;font-size:1.05rem}
.usage-box p{margin:0;color:var(--muted);font-size:.875rem;line-height:1.75}

/* 深色 CTA */
.cta-band{
  position:relative;
  background:
    linear-gradient(112deg,rgba(5,24,45,.95) 0%,rgba(10,38,72,.88) 78%),
    url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:clamp(72px,10vw,112px) 0;
}
.cta-inner{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);
  gap:48px;
  align-items:center;
}
.cta-inner h2{color:#fff;font-size:clamp(1.6rem,2.8vw,2.25rem);max-width:650px;margin-bottom:18px}
.cta-inner p{color:rgba(255,255,255,.88);font-size:1rem;line-height:1.9;max-width:650px;margin:0}
.cta-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px}
.cta-right{text-align:left}
.cta-note{
  border:1px solid rgba(255,255,255,.2);
  border-radius:15px;
  padding:24px;
  background:rgba(255,255,255,.08);
  backdrop-filter:none;
}
.cta-note span{display:inline-flex;font-weight:750;font-size:.875rem;margin-bottom:10px;color:#ffd9cb}
.cta-note p{margin:0;font-size:.875rem;line-height:1.8;color:rgba(255,255,255,.82)}

/* FAQ */
.faq-section{background:#fff}
.faq-list{max-width:880px;margin:8px auto 0}
.faq-item{
  border:1px solid #dee7f1;
  border-radius:14px;
  margin-bottom:12px;
  background:#fbfdff;
  overflow:hidden;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.faq-item[open]{border-color:#bdD3ee;box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 26px;
  cursor:pointer;
  font-weight:700;
  color:var(--ink);
  line-height:1.5;
  height:auto;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  color:var(--primary);
  font-size:1.6rem;
  font-weight:400;
  line-height:1;
  transition:transform .3s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{color:var(--primary)}
.faq-answer{padding:0 26px 24px;color:var(--muted);font-size:.9375rem;line-height:1.9}
.faq-answer p{margin:0}

/* 咨询区 */
.contact-section{
  background:
    linear-gradient(180deg,#fff 0%,#e7f1fc 100%);
  border-top:1px solid #e1e9f3;
}
.contact-panel{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:clamp(28px,5vw,64px);
  background:#fff;
  border:1px solid #d8e2ee;
  border-radius:20px;
  box-shadow:var(--shadow);
  padding:clamp(28px,4vw,52px);
}
.contact-info h2{margin-bottom:14px}
.contact-info > p{margin:0 0 22px;color:var(--muted);font-size:.9375rem;line-height:1.9}
.contact-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:.875rem;
  line-height:1.75;
  color:var(--text);
  margin-bottom:10px;
}
.contact-list li::before{
  content:"·";
  color:var(--primary);
  font-weight:900;
  font-size:1.2rem;
  line-height:1.2;
}
.contact-email{
  display:inline-flex;
  font-weight:700;
  color:var(--primary);
  word-break:break-all;
}
.contact-email:hover{color:var(--primary-deep)}

.lead-form{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.form-field{display:flex;flex-direction:column;gap:8px}
.form-field.wide{grid-column:1/-1}
.form-field label{font-size:.875rem;font-weight:750;color:var(--ink)}
.form-field input,.form-field select,.form-field textarea{
  width:100%;
  border:1px solid var(--border);
  border-radius:10px;
  background:#fff;
  padding:12px 14px;
  font-size:.9375rem;
  min-height:46px;
  outline:none;
  transition:border-color var(--transition),box-shadow var(--transition);
  appearance:none;
}
.form-field select{
  background-image:url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%235d6b7e' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 15px center;
  padding-right:36px;
}
.form-field textarea{min-height:126px;resize:vertical;line-height:1.7}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(23,105,224,.12);
}
.lead-form .btn{justify-self:start;grid-column:1/-1;min-width:128px;margin-top:4px}
.form-hint{grid-column:1/-1;font-size:.8125rem;color:var(--muted);line-height:1.7;margin:-4px 0 0}

/* 页脚 */
.footer{
  background:#edf2f7;
  padding:70px 0 28px;
  color:#42536a;
  font-size:.9375rem;
}
.footer-top{
  display:grid;
  grid-template-columns:2.1fr 1fr 1fr 1.2fr;
  gap:clamp(28px,4vw,58px);
  padding-bottom:40px;
}
.footer-brand-text{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--primary-dark);
  font-weight:800;
  font-size:1.25rem;
  margin-bottom:16px;
  line-height:1.2;
}
.footer .footer-top > div:first-child > p:not(.footer-brand-text){color:var(--muted);line-height:1.8;max-width:310px;font-size:.875rem}
.footer-h4{
  font-size:.9375rem;
  font-weight:800;
  color:#22364e;
  margin-bottom:18px;
  line-height:1.4;
}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#42536a;font-size:.875rem;line-height:1.6;transition:color var(--transition)}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:8px 24px;
  border-top:1px solid #d7e0ec;
  padding-top:24px;
  color:var(--muted);
  font-size:.8125rem;
}

/* 响应式 */
@media (max-width:1100px){
  .site-nav{gap:16px}
  .nav-link{font-size:.875rem}
  .nav-cta{padding:9px 15px}
  .header-inner{gap:18px}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex}
  .header-inner{height:62px}
  .site-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:0;
    background:#fff;
    border-bottom:1px solid var(--border);
    padding:16px 24px 24px;
    box-shadow:0 22px 36px rgba(16,30,50,.1);
  }
  .site-nav.open{display:flex}
  .nav-link{
    min-height:48px;
    justify-content:flex-start;
    border-bottom:1px solid #edf1f6;
    font-size:.9375rem;
    font-weight:600;
  }
  .nav-link::after{display:none}
  .nav-cta{
    margin-left:0;
    margin-top:18px;
    justify-content:center;
    min-height:44px;
    font-size:.9375rem;
  }
  .hero-grid,.cta-inner,.contact-panel{grid-template-columns:1fr}
  .hero-art{max-width:600px}
  .hero-sticker{position:static;margin-top:18px;display:inline-flex}
  .topic-card{grid-template-columns:1fr}
  .topic-media{min-height:280px}
  .usage-box{grid-template-columns:1fr}
  .usage-box li{border-right:0;border-bottom:1px solid #d8e4f1}
  .usage-box li:last-child{border-bottom:0}
  .topic-card.reversed .topic-media{order:0}
  .topic-card.reversed .topic-content{order:1}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .section{padding:68px 0}
  .feature-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:36px}
  .lead-form{grid-template-columns:1fr}
  .brand-text{font-size:1.1rem}
  .brand-mark{width:32px;height:32px;font-size:.95rem}
  .topic-card .hero-sticker{left:0;right:auto}
  .hero-copy h1{font-size:2.35rem}
  .timeline-box{left:-4px}
}

/* roulang page: category3 */
:root {
  --blue: #1769E0;
  --blue-dark: #0b54bf;
  --blue-soft: #E8F1FC;
  --blue-mist: #F4F8FE;
  --bg: #F6F8FB;
  --surface: #FFFFFF;
  --text: #101D2E;
  --muted: #5D6B7E;
  --line: #D7DFEA;
  --orange: #FF6A3D;
  --navy: #082148;
  --success: #0B7A5A;
  --danger: #D92D20;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 2px rgba(16, 30, 46, .04), 0 4px 14px rgba(16, 30, 46, .05);
  --shadow-md: 0 2px 4px rgba(16, 30, 46, .05), 0 16px 36px rgba(16, 30, 50, .08);
  --shadow-lg: 0 4px 12px rgba(16, 30, 46, .06), 0 28px 56px rgba(16, 30, 50, .12);
  --header-h: 76px;
  --container: 1200px;
  --gutter: clamp(20px, 4vw, 40px);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  padding: 0;
  margin: 0;
  list-style: none;
}

p {
  margin: 0;
  padding: 0;
}

button, input, textarea, select {
  font: inherit;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding: 86px 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--blue);
  text-transform: uppercase;
}

.section-head {
  max-width: 760px;
  margin-bottom: 44px;
}

.section-head h2 {
  margin: 12px 0 16px;
  font-size: clamp(1.5rem, 2.6vw, 2.15rem);
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--text);
}

.section-head p:not(.eyebrow),
.section-head .head-note {
  color: var(--muted);
  max-width: 660px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  text-align: center;
  transition: background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease, transform .12s ease;
}

.btn:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}

.btn-primary:hover {
  background: var(--blue-dark);
  border-color: var(--blue-dark);
  box-shadow: 0 8px 20px rgba(23, 105, 224, .18);
}

.btn-ghost {
  background: #fff;
  border-color: var(--line);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--blue);
  color: var(--blue);
  box-shadow: var(--shadow-sm);
}

.btn-light {
  background: #fff;
  border-color: #fff;
  color: var(--navy);
}

.btn-light:hover {
  background: var(--blue-soft);
  border-color: var(--blue-soft);
}

.btn-orange {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff;
}

.btn-orange:hover {
  filter: saturate(.92) brightness(.96);
}

/* 导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255,255,255,.97);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  height: var(--header-h);
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  margin-right: auto;
  font-size: 1.06rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -.01em;
}

.brand:hover .brand-name {
  color: var(--blue);
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--navy);
  color: #fff;
  border-radius: 10px;
  font-size: .88rem;
  font-weight: 800;
  box-shadow: 0 6px 14px rgba(8,33,72,.14);
}

.brand-name {
  transition: color .2s;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: var(--header-h);
  font-size: .95rem;
  font-weight: 600;
  color: #34465E;
  transition: color .2s;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 14px;
  width: 24px;
  height: 4px;
  border-radius: 999px;
  transform: translate(-50%, 8px) scaleX(.3);
  opacity: 0;
  background: var(--blue);
  transition: opacity .2s ease, transform .2s ease;
}

.nav-link:hover {
  color: var(--blue);
}

.nav-link:hover::after {
  opacity: .7;
  transform: translate(-50%, 0) scaleX(.75);
}

.nav-link.active {
  color: var(--blue);
}

.nav-link.active::after {
  opacity: 1;
  transform: translate(-50%, 0) scaleX(1);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 18px;
  background: var(--blue-soft);
  border: 1px solid transparent;
  color: var(--blue);
  border-radius: 99px;
  font-size: .9rem;
  font-weight: 700;
  transition: background .2s ease, color .2s ease, box-shadow .2s ease;
}

.nav-cta:hover {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 8px 22px rgba(23,105,224,.16);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  padding: 0;
  margin: 0;
  cursor: pointer;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: .875rem;
  color: var(--muted);
  margin-bottom: 18px;
}

.breadcrumb a {
  color: var(--muted);
  transition: color .2s;
}

.breadcrumb a:hover {
  color: var(--blue);
}

.breadcrumb .sep {
  color: #9AA8BA;
}

.breadcrumb [aria-current="page"] {
  color: var(--text);
  font-weight: 600;
}

/* 分类页 hero */
.page-hero {
  position: relative;
  min-height: 470px;
  padding: 70px 0 60px;
  background: linear-gradient(180deg, rgba(232,241,252,.82) 0%, rgba(246,248,251,0) 80%), url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  border-bottom: 1px solid var(--line);
}

.page-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
}

.page-hero__desc {
  max-width: 640px;
}

.page-hero h1 {
  margin: 12px 0 16px;
  font-size: clamp(2.2rem, 4.8vw, 3.6rem);
  line-height: 1.15;
  font-weight: 850;
  letter-spacing: -.04em;
}

.hero-lead {
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--text);
  margin-bottom: 8px;
  max-width: 540px;
}

.hero-note {
  margin-top: 18px;
  font-size: .9rem;
  color: var(--muted);
  border-left: 3px solid var(--blue);
  background: rgba(232,241,252,.5);
  padding: 8px 16px;
  border-radius: 0 10px 10px 0;
}

.page-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-hero__card {
  display: block;
  border-radius: 18px;
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(215,223,234,.8);
  aspect-ratio: 4 / 3;
  position: relative;
}

.page-hero__card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero__card-caption {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 16px;
  background: rgba(8,33,72,.82);
  color: #fff;
  padding: 16px 18px;
  border-radius: 14px;
  font-size: .92rem;
  letter-spacing: .02em;
  backdrop-filter: blur(6px);
}

.page-hero__card-caption strong {
  display: block;
  margin-bottom: 2px;
  font-size: 1rem;
}

/* 选择向导 */
.choose-section {
  padding: 68px 0 24px;
}

.choose-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 40px;
  align-items: start;
}

.choose-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow-sm);
}

.choose-card + .choose-card {
  margin-top: 20px;
}

.choose-card .question-badge {
  display: inline-flex;
  background: var(--blue-soft);
  color: var(--blue);
  font-size: .8rem;
  font-weight: 700;
  border-radius: 99px;
  padding: 3px 12px;
  margin-bottom: 10px;
}

.choose-card h3 {
  margin: 0 0 8px;
  font-size: 1.18rem;
  line-height: 1.4;
}

.choose-card p {
  color: var(--muted);
  font-size: .96rem;
}

.choose-side {
  background: var(--navy);
  border-radius: var(--radius);
  padding: 34px;
  color: #fff;
  box-shadow: var(--shadow-md);
}

.choose-side h3 {
  margin: 0 0 16px;
  font-size: 1.35rem;
  line-height: 1.45;
}

.choose-side ul {
  margin-top: 10px;
}

.choose-side li {
  position: relative;
  padding-left: 20px;
  margin: 10px 0;
  color: rgba(255,255,255,.82);
}

.choose-side li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 99px;
  background: #fff;
  position: absolute;
  left: 0;
  top: .85em;
}

/* 权益阶梯 */
.ladder-section {
  padding-top: 20px;
}

.ladder-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.tier-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  border-radius: 18px;
  padding: 32px 30px;
  transition: box-shadow .25s ease, border-color .25s ease, transform .25s ease;
  min-height: 460px;
}

.tier-card:hover {
  border-color: rgba(23,105,224,.3);
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
}

.tier-card.ladder-mid {
  margin-top: 42px;
}

.tier-card.ladder-last {
  margin-top: 16px;
}

.tier-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: flex-start;
  padding: 5px 15px;
  border-radius: 99px;
  background: var(--blue-mist);
  color: var(--blue);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .03em;
}

.tier-tag.hot {
  background: #FFF0EC;
  color: var(--orange);
}

.tier-card h3 {
  font-size: 1.42rem;
  margin: 20px 0 8px;
  line-height: 1.3;
}

.tier-card .tier-desc {
  color: var(--muted);
  font-size: .95rem;
  margin-bottom: 22px;
}

.tier-list {
  flex: 1;
}

.tier-list li {
  display: flex;
  align-items: flex-start;
  padding: 11px 0;
  border-bottom: 1px solid rgba(215,223,234,.55);
  font-size: .93rem;
  color: #2A3A4E;
}

.tier-list li::before {
  content: "";
  flex: 0 0 7px;
  width: 7px;
  height: 7px;
  margin-top: .6em;
  margin-right: 12px;
  border-radius: 50%;
  background: var(--blue);
}

.tier-list li.muted-item::before {
  background: #C2CFDD;
}

.tier-card .tier-price {
  margin-top: 24px;
  font-size: 1rem;
  font-weight: 800;
  color: var(--text);
}

.tier-card .tier-price small {
  font-weight: 400;
  color: var(--muted);
  font-size: .8rem;
  display: block;
  margin-top: 2px;
}

.tier-card .btn {
  margin-top: 16px;
  width: 100%;
}

/* 包含项 */
.compare-inner {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.table-scroll {
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: #C8D3E1 transparent;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .95rem;
  min-width: 820px;
}

.compare-table th,
.compare-table td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

.compare-table thead th {
  background: var(--blue-mist);
  font-size: .88rem;
  font-weight: 800;
  border-bottom: 2px solid var(--blue);
  color: var(--text);
}

.compare-table thead .col-hot {
  border-bottom-color: var(--blue);
}

.compare-table thead .recommend-pill {
  background: #fff;
  color: var(--blue);
  margin-left: 6px;
  padding: 2px 10px;
  border-radius: 99px;
  font-size: .75rem;
}

.compare-table tbody tr:nth-child(even) {
  background: rgba(232,241,252,.28);
}

.compare-table tbody tr:hover {
  background: rgba(23,105,224,.04);
}

.compare-table td:nth-child(1) {
  font-weight: 600;
}

.compare-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  min-height: 28px;
  border-radius: 9px;
  background: var(--blue-soft);
  color: var(--blue);
  font-size: .75rem;
  font-weight: 800;
}

.compare-check.no {
  background: #F0F3F7;
  color: #9AA8BA;
}

.compare-table .inline-note {
  color: var(--muted);
  font-size: .8rem;
}

/* 流程块 */
.process-section {
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  counter-reset: process;
}

.process-item {
  counter-increment: process;
  position: relative;
  padding: 34px 28px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--blue-mist);
  min-height: 230px;
  transition: transform .2s ease, box-shadow .2s ease;
}

.process-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}

.process-item::before {
  content: "0" counter(process);
  font-size: 2rem;
  font-weight: 850;
  letter-spacing: -.04em;
  color: rgba(23,105,224,.12);
  line-height: 1;
  display: block;
  margin-bottom: 22px;
}

.process-item h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
  font-weight: 750;
}

.process-item p {
  color: var(--muted);
  font-size: .92rem;
}

/* CTA */
.cta-band {
  padding: 82px 0;
}

.cta-band__inner {
  display: flex;
  align-items: center;
  gap: 34px;
  justify-content: space-between;
  background: var(--navy);
  border-radius: 22px;
  padding: clamp(32px, 5vw, 56px);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.cta-band__inner h2 {
  margin: 0 0 10px;
  font-size: clamp(1.3rem, 2.3vw, 1.8rem);
  line-height: 1.3;
}

.cta-band__inner p {
  color: rgba(255,255,255,.78);
  max-width: 620px;
  margin-bottom: 0;
}

/* FAQ */
.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color .2s ease, box-shadow .2s;
}

.faq-item:hover {
  border-color: rgba(23,105,224,.3);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 24px;
  font-weight: 700;
  font-size: 1rem;
  min-height: 60px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  color: var(--blue);
}

.faq-item .plus-icon {
  position: relative;
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
}

.faq-item .plus-icon::before,
.faq-item .plus-icon::after {
  content: "";
  position: absolute;
  inset: 0;
  width: 16px;
  height: 2px;
  margin: auto;
  background: var(--muted);
  border-radius: 99px;
  transition: transform .25s ease, background .2s;
}

.faq-item .plus-icon::after {
  transform: rotate(90deg);
}

.faq-item[open] .plus-icon::after {
  transform: rotate(0deg);
  opacity: 0;
}

.faq-item[open] .plus-icon::before {
  background: var(--blue);
  transform: rotate(0);
}

.faq-answer {
  padding: 0 24px 24px;
  color: var(--muted);
  font-size: .96rem;
  border-top: 1px dashed var(--line);
  margin: 0 24px 0;
  padding-left: 0;
  padding-right: 0;
}

.faq-answer p {
  margin-top: 18px;
}

/* 预约表单 */
.contact-section {
  background: var(--blue-mist);
  padding: 86px 0;
}

.contact-wrap {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: clamp(30px, 5vw, 70px);
  align-items: start;
}

.contact-intro h2 {
  margin: 12px 0 16px;
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  line-height: 1.3;
}

.contact-intro > p {
  color: var(--muted);
  max-width: 420px;
}

.contact-intro .contact-tips {
  margin-top: 30px;
  display: grid;
  gap: 12px;
}

.contact-intro .contact-tips li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: #fff;
  border-radius: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  color: #34465E;
  font-size: .93rem;
}

.contact-intro .contact-tips strong {
  color: var(--blue);
}

.contact-form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  padding: clamp(24px, 4vw, 36px);
}

.contact-form-card .form-title {
  margin: 0 0 6px;
  font-size: 1.15rem;
  font-weight: 800;
}

.contact-form-card .form-hint {
  margin: 0 0 28px;
  font-size: .9rem;
  color: var(--muted);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 16px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-field.full {
  grid-column: span 2;
}

.form-field label {
  display: block;
  font-size: .88rem;
  font-weight: 700;
  color: #25364A;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  background: #fff;
  color: var(--text);
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease;
  appearance: auto;
}

.form-field textarea {
  min-height: 116px;
  resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(23,105,224,.1);
}

.form-field input.error,
.form-field textarea.error {
  border-color: var(--danger);
}

.form-field .field-error {
  color: var(--danger);
  font-size: .82rem;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: #A3AFC0;
}

.form-submit {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.form-submit small {
  color: var(--muted);
  font-size: .8rem;
}

/* 页脚 */
.footer {
  background: #EDF2F7;
  border-top: 1px solid var(--line);
}

.footer a {
  transition: color .2s ease;
}

.footer a:hover {
  color: var(--blue);
}

.footer-brand-text {
  display: flex;
  align-items: center;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 14px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.6fr;
  gap: 44px;
  padding: 56px 0 44px;
}

.footer-top p {
  color: #42536A;
  font-size: .9rem;
  max-width: 340px;
}

.footer-h4 {
  margin: 0 0 16px;
  font-size: .95rem;
  font-weight: 750;
  color: var(--text);
}

.footer-links {
  display: grid;
  gap: 10px;
  font-size: .89rem;
  color: #42536A;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  border-top: 1px solid #D7DFEA;
  padding: 22px 0 32px;
  font-size: .8rem;
  color: var(--muted);
}

/* 响应式 */
@media (max-width: 1100px) {
  .ladder-grid {
    gap: 18px;
  }

  .contact-wrap {
    gap: 30px;
  }

  .footer-top {
    grid-template-columns: 1fr 1.5fr;
    gap: 32px;
  }
}

@media (max-width: 900px) {
  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(255,255,255,.99);
    align-items: stretch;
    gap: 0;
    flex-direction: column;
    padding: 10px var(--gutter) 24px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 22px 36px rgba(16,30,50,.08);
    display: none;
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav .nav-link,
  .site-nav .nav-cta {
    width: 100%;
    height: 52px;
    justify-content: flex-start;
    border-radius: 8px;
    padding: 0 14px;
  }

  .site-nav .nav-link::after {
    left: auto;
    transform: translate(0,0);
    width: 14px;
    height: 100%;
    bottom: 0;
    border-radius: 0 8px 8px 0;
    opacity: 0;
    background: var(--blue);
  }

  .site-nav .nav-link.active::after {
    opacity: 1;
    transform: none;
  }

  .site-nav .nav-link:hover {
    background: rgba(232,241,252,.5);
  }

  .site-nav .nav-cta {
    margin-top: 8px;
    height: 46px;
    border-radius: 8px;
    justify-content: center;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
  }

  .nav-toggle i,
  .nav-toggle::before,
  .nav-toggle::after {
    content: "";
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 99px;
    margin: 3px 0;
    transition: transform .2s ease, opacity .2s;
  }

  .nav-toggle.is-open::before {
    transform: translateY(8px) rotate(45deg);
  }

  .nav-toggle.is-open::after {
    transform: translateY(-8px) rotate(-45deg);
  }

  .page-hero {
    padding: 44px 0 44px;
    min-height: 0;
  }

  .page-hero__grid {
    grid-template-columns: 1fr;
  }

  .page-hero__card {
    display: block;
    max-width: 560px;
  }

  .ladder-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .tier-card.ladder-mid,
  .tier-card.ladder-last {
    margin-top: 0;
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-wrap {
    grid-template-columns: 1fr;
  }

  .cta-band__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .choose-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 64px 0;
  }

  .header-inner {
    gap: 16px;
  }

  .brand-name {
    font-size: 1rem;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-field.full {
    grid-column: span 1;
  }

  .process-grid {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr;
    padding-top: 42px;
  }

  .footer-bottom {
    flex-direction: column;
    padding-bottom: 24px;
  }

  .compare-table th,
  .compare-table td {
    padding: 13px 12px;
  }

  .table-scroll::-webkit-scrollbar {
    height: 6px;
  }

  .table-scroll::-webkit-scrollbar-thumb {
    background: #C9D5E3;
    border-radius: 99px;
  }

  .contact-section {
    padding: 68px 0;
  }

  .page-hero__actions .btn {
    width: 100%;
  }

  .cta-band__inner .btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}