/* roulang page: index */
:root{
  --c-primary:#1C6E8C;
  --c-primary-deep:#124A5E;
  --c-primary-dark:#175A73;
  --c-accent:#EE6C2D;
  --c-accent-soft:#FFF1E6;
  --c-bg:#F6F8F9;
  --c-surface:#FFFFFF;
  --c-tint:#EAF4F8;
  --c-text:#17262C;
  --c-text-muted:#5A727C;
  --c-line:#E1E9EC;
  --c-line-soft:#EEF3F5;
  --c-input:#CBD9DE;
  --c-error:#D64545;
  --c-success:#1F9E7A;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(18,74,94,.08);
  --sh-2:0 16px 36px rgba(18,74,94,.14);
  --sh-3:0 24px 60px rgba(18,74,94,.12);
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  overflow-x:hidden;
  font-family:"Inter",-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input,select,textarea{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em;color:var(--c-text);}
p{margin:0;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}
@media (max-width:640px){.container{padding:0 20px;}}
.section{padding:var(--sec) 0;}
@media (max-width:1024px){.section{padding:72px 0;}}
@media (max-width:640px){.section{padding:56px 0;}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-head h2{font-size:32px;}
.section-desc{margin-top:10px;font-size:15px;color:var(--c-text-muted);line-height:1.85;max-width:620px;}
@media (max-width:767px){
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .section-head h2{font-size:24px;}
}

/* ---------- 倒计时条 ---------- */
.countdown-bar{background:var(--c-primary-deep);color:#fff;min-height:44px;display:flex;align-items:center;}
.countdown-inner{display:flex;align-items:center;justify-content:center;gap:18px;width:100%;padding:6px 0;font-size:14px;flex-wrap:nowrap;}
.cd-label{opacity:.88;white-space:nowrap;}
.cd-timer{display:flex;align-items:center;gap:8px;}
.cd-unit{display:inline-flex;align-items:center;gap:4px;}
.cd-unit b{display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:26px;padding:0 6px;border-radius:8px;background:rgba(255,255,255,.16);font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;color:#fff;}
.cd-unit i{font-style:normal;font-size:12px;opacity:.78;}
.cd-link{color:#fff;font-size:13px;border-bottom:1px solid rgba(255,255,255,.45);padding-bottom:1px;white-space:nowrap;}
.cd-link:hover{color:#fff;border-bottom-color:#fff;}
.cd-end{display:none;font-size:13px;opacity:.85;white-space:nowrap;}
@media (max-width:767px){
  .countdown-inner{gap:10px;font-size:12px;}
  .cd-label{display:none;}
  .cd-link{display:none;}
  .cd-unit i{display:none;}
  .cd-end{display:inline;}
}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:sticky;top:16px;z-index:90;padding:0;}
.nav-shell{
  position:relative;
  max-width:1180px;margin:0 auto;min-height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:8px 10px 8px 24px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  transition:box-shadow .26s ease-out,background .26s ease-out;
}
.site-header.is-scrolled .nav-shell{box-shadow:var(--sh-2);background:rgba(255,255,255,.95);}
.brand{display:flex;align-items:baseline;gap:8px;line-height:1;flex:none;}
.brand-main{font-size:18px;font-weight:700;color:var(--c-primary-deep);letter-spacing:.02em;}
.brand-sub{font-size:12px;font-weight:500;color:var(--c-primary);background:var(--c-tint);border-radius:var(--r-pill);padding:3px 9px;}
.brand:hover .brand-main{color:var(--c-primary);}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 16px;
  font-size:15px;color:var(--c-text);border-radius:var(--r-pill);transition:color .2s ease,background .2s ease;
}
.nav-menu a::after{
  content:"";position:absolute;left:50%;bottom:6px;width:4px;height:4px;border-radius:50%;
  background:var(--c-primary);transform:translate(-50%,4px) scale(.4);opacity:0;transition:all .22s ease-out;
}
.nav-menu a:hover{color:var(--c-primary);background:rgba(234,244,248,.7);}
.nav-menu a:hover::after{opacity:1;transform:translate(-50%,0) scale(1);}
.nav-menu a.is-active{color:var(--c-primary);font-weight:600;background:var(--c-tint);}
.nav-menu a.is-active::after{opacity:1;transform:translate(-50%,0) scale(1);}
.nav-cta{flex:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:50%;border:1px solid var(--c-line);
  align-items:center;justify-content:center;background:#fff;flex:none;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--c-primary-deep);border-radius:2px;transition:background .2s ease;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-primary-deep);border-radius:2px;transition:transform .22s ease-out;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-active span{background:transparent;}
.nav-toggle.is-active span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-active span::after{transform:translateY(-6px) rotate(-45deg);}
@media (max-width:1023px){
  .nav-shell{flex-wrap:wrap;padding:8px 12px 8px 20px;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .nav-menu{
    display:none;width:100%;flex-direction:column;align-items:stretch;gap:0;
    order:3;margin-top:8px;padding:8px 4px;background:#fff;border:1px solid var(--c-line-soft);
    border-radius:20px;box-shadow:var(--sh-1);
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu a{height:48px;padding:0 16px;border-radius:12px;border-bottom:1px solid var(--c-line-soft);font-size:15px;}
  .nav-menu a:last-child{border-bottom:0;}
  .nav-menu a::after{display:none;}
}
@media (max-width:640px){
  .site-header{top:8px;}
  .nav-shell{min-height:58px;padding:7px 8px 7px 16px;}
  .brand-main{font-size:16px;}
  .brand-sub{font-size:11px;}
}

/* ---------- 按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:52px;padding:0 28px;border-radius:var(--r-pill);
  border:1px solid transparent;font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;transition:background .24s ease-out,color .24s ease-out,transform .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-primary:focus-visible{outline:3px solid rgba(28,110,140,.28);outline-offset:2px;}
.btn-ghost{background:#fff;border-color:var(--c-input);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-tint);border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-ghost:focus-visible{outline:3px solid rgba(28,110,140,.28);outline-offset:2px;}
.btn-block{width:100%;}
.btn-sm{min-height:44px;padding:0 22px;font-size:14px;}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;background:var(--c-tint);color:var(--c-primary);white-space:nowrap;}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;white-space:nowrap;}
.link-arrow:hover{color:var(--c-primary-dark);}

/* ---------- Hero ---------- */
.hero{position:relative;padding:72px 0 88px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;top:-200px;right:-140px;width:660px;height:660px;border-radius:50%;
  background:radial-gradient(circle,rgba(28,110,140,.10),rgba(28,110,140,0) 68%);pointer-events:none;
}
.hero::after{
  content:"";position:absolute;bottom:-220px;left:-160px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(238,108,45,.07),rgba(238,108,45,0) 70%);pointer-events:none;
}
.hero-grid{position:relative;z-index:1;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--c-accent-soft);color:var(--c-accent);font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.hero h1{font-size:48px;line-height:1.22;letter-spacing:-.02em;max-width:560px;}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:var(--c-text-muted);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);aspect-ratio:4/3;background:var(--c-tint);}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-tag{
  position:absolute;left:20px;bottom:20px;display:flex;align-items:baseline;gap:10px;
  background:#fff;border-radius:14px;padding:12px 20px;box-shadow:var(--sh-1);
}
.hero-tag b{font-size:26px;font-weight:700;color:var(--c-accent);line-height:1;font-variant-numeric:tabular-nums;}
.hero-tag span{font-size:13px;color:var(--c-text-muted);}
@media (max-width:1024px){
  .hero{padding:56px 0 64px;}
  .hero h1{font-size:38px;max-width:100%;}
  .hero-visual{margin-top:40px;}
}
@media (max-width:640px){
  .hero{padding:44px 0 52px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .hero-visual{margin-top:28px;aspect-ratio:5/4;}
}

/* ---------- 卖点区 ---------- */
.points{background:#fff;border-top:1px solid var(--c-line-soft);border-bottom:1px solid var(--c-line-soft);}
.points-intro h2{font-size:32px;line-height:1.28;}
.points-intro p{margin-top:14px;font-size:15px;color:var(--c-text-muted);line-height:1.85;max-width:320px;}
.points-intro .link-arrow{margin-top:18px;}
.point-list{border-top:1px solid var(--c-line);}
.point-row{
  display:flex;gap:22px;align-items:flex-start;
  padding:24px 18px;border-bottom:1px solid var(--c-line);border-radius:12px;
  transition:background .24s ease-out,transform .24s ease-out,box-shadow .24s ease-out;
}
.point-row:hover{background:var(--c-bg);transform:translateX(2px);box-shadow:var(--sh-1);}
.point-num{font-size:24px;font-weight:700;color:var(--c-primary);min-width:46px;line-height:1.3;font-variant-numeric:tabular-nums;transition:color .24s ease-out;}
.point-row:hover .point-num{color:var(--c-accent);}
.point-body h3{font-size:18px;line-height:1.45;}
.point-body p{margin-top:4px;font-size:14px;color:var(--c-text-muted);line-height:1.75;}
@media (max-width:1024px){
  .points-intro{margin-bottom:32px;}
  .points-intro p{max-width:100%;}
  .points-intro h2{font-size:24px;}
}
@media (max-width:640px){
  .point-row{gap:14px;padding:20px 12px;}
  .point-num{font-size:20px;min-width:34px;}
  .point-body h3{font-size:16px;}
}

/* ---------- 图墙 ---------- */
.wall{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:138px;gap:16px;}
.wall-item{position:relative;overflow:hidden;border-radius:16px;background:var(--c-tint);}
.wall-item.tall{grid-column:span 2;grid-row:span 2;}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease-out;}
.wall-item:hover img{transform:scale(1.04);}
.wall-cap{
  position:absolute;left:0;right:0;bottom:0;padding:26px 16px 14px;font-size:14px;color:#fff;
  background:linear-gradient(to top,rgba(12,42,55,.8),rgba(12,42,55,0));
  opacity:0;transform:translateY(8px);transition:opacity .26s ease-out,transform .26s ease-out;
}
.wall-item:hover .wall-cap,.wall-item:focus-within .wall-cap{opacity:1;transform:translateY(0);}
@media (max-width:1024px){
  .wall{grid-template-columns:repeat(3,1fr);grid-auto-rows:124px;}
}
@media (max-width:640px){
  .wall{grid-template-columns:repeat(2,1fr);grid-auto-rows:112px;gap:12px;}
  .wall-item.tall{grid-column:span 1;grid-row:span 1;}
  .wall-cap{opacity:1;transform:none;padding:22px 12px 10px;font-size:13px;}
}

/* ---------- 报名 CTA ---------- */
.apply-block{background:var(--c-tint);border-radius:var(--r-lg);padding:56px;display:flex;align-items:center;gap:48px;}
.apply-copy{flex:1 1 46%;min-width:0;}
.apply-copy h2{font-size:32px;line-height:1.28;}
.apply-copy p{margin-top:14px;font-size:15px;color:var(--c-text-muted);line-height:1.85;max-width:400px;}
.apply-notes{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.apply-card{flex:0 0 400px;max-width:100%;background:#fff;border-radius:18px;padding:28px;box-shadow:var(--sh-3);}
.apply-card h3{font-size:18px;margin-bottom:6px;}
.apply-card .form-tip{font-size:13px;color:var(--c-text-muted);margin-bottom:18px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:500;margin-bottom:8px;color:var(--c-text);}
.field input,.field select{
  width:100%;height:48px;border-radius:12px;border:1px solid var(--c-input);
  padding:0 14px;font-size:15px;color:var(--c-text);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath fill='none' stroke='%235A727C' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' d='M1 1l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:42px;}
.field input::placeholder{color:#9AAFB6;}
.field input:focus,.field select:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(28,110,140,.16);}
.field.has-error input,.field.has-error select{border-color:var(--c-error);}
.field-error{display:none;margin-top:6px;font-size:13px;color:var(--c-error);}
.field.has-error .field-error{display:block;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-text-muted);line-height:1.7;margin:4px 0 18px;}
.check-row input{width:18px;height:18px;margin-top:2px;flex:none;accent-color:var(--c-primary);}
.form-msg{display:none;margin-top:14px;font-size:13px;padding:10px 14px;border-radius:12px;}
.form-msg.ok{display:block;background:rgba(31,158,122,.10);color:var(--c-success);}
.form-msg.bad{display:block;background:rgba(214,69,69,.10);color:var(--c-error);}
@media (max-width:1024px){
  .apply-block{flex-direction:column;align-items:stretch;gap:32px;padding:40px;}
  .apply-card{flex:1 1 auto;width:100%;}
  .apply-copy h2{font-size:24px;}
  .apply-copy p{max-width:100%;}
}
@media (max-width:640px){
  .apply-block{padding:24px;border-radius:20px;}
  .apply-card{padding:22px;box-shadow:var(--sh-1);}
}

/* ---------- 最新信息 ---------- */
.news{background:#fff;border-top:1px solid var(--c-line-soft);border-bottom:1px solid var(--c-line-soft);}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.news-card{
  display:flex;gap:16px;padding:16px;background:var(--c-surface);color:inherit;
  border:1px solid var(--c-line-soft);border-radius:18px;box-shadow:var(--sh-1);
  transition:transform .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-line);color:inherit;}
.news-card:focus-visible{outline:3px solid rgba(28,110,140,.28);outline-offset:3px;}
.news-thumb{flex:none;width:118px;aspect-ratio:16/10;border-radius:12px;overflow:hidden;background:var(--c-tint);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out;}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{min-width:0;display:flex;flex-direction:column;}
.news-body h3{
  font-size:18px;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.news-card:hover .news-body h3{color:var(--c-primary);}
.news-body p{
  margin-top:6px;font-size:14px;color:var(--c-text-muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:12px;font-size:13px;color:var(--c-text-muted);}
.news-meta .arrow{margin-left:auto;color:var(--c-primary);font-weight:700;}
.empty-state{
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  background:var(--c-bg);border:1px dashed var(--c-line);border-radius:18px;padding:32px;text-align:center;
}
.empty-state .empty-ico{width:44px;height:44px;border-radius:50%;border:2px solid rgba(28,110,140,.4);display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-weight:700;}
.empty-state p{font-size:14px;color:var(--c-text-muted);}
@media (max-width:1024px){
  .news-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .news-card{flex-direction:column;gap:12px;}
  .news-thumb{width:100%;aspect-ratio:16/9;}
}

/* ---------- FAQ ---------- */
.faq-intro h2{font-size:32px;line-height:1.28;}
.faq-intro p{margin-top:14px;font-size:15px;color:var(--c-text-muted);line-height:1.85;max-width:300px;}
.faq-intro .btn{margin-top:22px;}
.faq-item{
  background:#fff;border:1px solid var(--c-line-soft);border-radius:14px;margin-bottom:12px;overflow:hidden;
  transition:box-shadow .24s ease-out,border-color .24s ease-out;
}
.faq-item.is-open{border-color:rgba(28,110,140,.3);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--c-text);line-height:1.5;
  transition:color .2s ease,box-shadow .2s ease;
}
.faq-q:hover{color:var(--c-primary);}
.faq-q:focus-visible{outline:3px solid rgba(28,110,140,.28);outline-offset:-3px;}
.faq-item.is-open .faq-q{color:var(--c-primary);box-shadow:inset 3px 0 0 var(--c-primary);}
.faq-icon{position:relative;width:16px;height:16px;flex:none;color:var(--c-primary);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform .2s ease-out;}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out;}
.faq-a p{padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--c-text-muted);}
@media (max-width:1024px){
  .faq-intro{margin-bottom:32px;}
  .faq-intro h2{font-size:24px;}
  .faq-intro p{max-width:100%;}
}

/* ---------- CTA 条 ---------- */
.cta-strip{
  background:var(--c-primary-deep);border-radius:20px;padding:40px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;color:#fff;
}
.cta-strip h2{font-size:26px;color:#fff;line-height:1.4;}
.cta-strip p{margin-top:8px;font-size:14px;color:rgba(255,255,255,.75);}
.cta-strip .btn-primary{background:#fff;color:var(--c-primary-deep);flex:none;}
.cta-strip .btn-primary:hover{background:var(--c-tint);color:var(--c-primary-deep);}
@media (max-width:767px){
  .cta-strip{flex-direction:column;align-items:flex-start;padding:28px 24px;gap:20px;}
  .cta-strip h2{font-size:20px;}
  .cta-strip .btn{width:100%;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E3A4A;color:rgba(255,255,255,.82);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.1fr 1.1fr;gap:32px;padding-bottom:44px;}
.footer-brand .brand-main{color:#fff;font-size:20px;}
.footer-brand .brand-sub{background:rgba(255,255,255,.12);color:#fff;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:280px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.footer-tags span{font-size:12px;padding:5px 12px;border-radius:var(--r-pill);background:rgba(255,255,255,.1);color:rgba(255,255,255,.86);}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:14px;line-height:1.7;color:rgba(255,255,255,.72);}
.footer-col a{color:rgba(255,255,255,.72);}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6);}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:640px){
  .site-footer{padding:44px 0 0;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px;}
  .footer-desc{max-width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
  .btn:hover,.news-card:hover,.point-row:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --c-primary:#1C6E8C;
  --c-primary-deep:#124A5E;
  --c-primary-darker:#0E3A4A;
  --c-accent:#EE6C2D;
  --c-accent-light:#FFA25C;
  --c-accent-soft:#FFF1E6;
  --c-bg:#F6F8F9;
  --c-surface:#FFFFFF;
  --c-tint:#EAF4F8;
  --c-text:#17262C;
  --c-text-muted:#5A727C;
  --c-line:#E1E9EC;
  --c-line-soft:#EEF3F5;
  --c-input:#CBD9DE;
  --c-error:#D64545;
  --c-success:#1F9E7A;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(18,74,94,.08);
  --sh-2:0 16px 36px rgba(18,74,94,.14);
  --sh-3:0 24px 60px rgba(18,74,94,.12);
  --sec-space:96px;
  --font-base:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-md);}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease-out;}
a:hover{color:var(--c-primary-deep);}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-base);
  color:var(--c-text);
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.25;
  margin:0;
}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{
  font-family:inherit;
  font-size:inherit;
  border:0;
  background:none;
  cursor:pointer;
  color:inherit;
}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
::selection{background:rgba(28,110,140,.18);}

.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  letter-spacing:.01em;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .22s ease-out,color .22s ease-out,border-color .22s ease-out,transform .22s ease-out,box-shadow .22s ease-out;
  white-space:nowrap;
}
.btn-sm{padding:10px 20px;font-size:14px;border-radius:var(--r-pill);}
.btn-primary{
  background:var(--c-primary);
  color:#fff;
  box-shadow:var(--sh-1);
}
.btn-primary:hover{background:#175A73;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{
  background:#fff;
  color:var(--c-primary);
  border-color:var(--c-input);
}
.btn-ghost:hover{background:var(--c-tint);border-color:var(--c-primary);color:var(--c-primary-deep);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-link{
  color:var(--c-primary);
  font-weight:600;
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-thickness:1px;
}
.btn-link:hover{color:var(--c-primary-deep);}
.btn:focus-visible,.btn-link:focus-visible,a:focus-visible,button:focus-visible{
  outline:3px solid rgba(28,110,140,.28);
  outline-offset:2px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:16px;
  z-index:60;
  padding-top:16px;
  margin-bottom:-88px;
}
.nav-shell{
  display:flex;
  align-items:center;
  gap:24px;
  height:64px;
  padding:0 10px 0 24px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  transition:box-shadow .26s ease-out,background-color .26s ease-out;
}
.site-header.is-scrolled .nav-shell{box-shadow:var(--sh-2);background:rgba(255,255,255,.94);}
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  flex-shrink:0;
  text-decoration:none;
}
.brand-main{
  font-size:18px;
  font-weight:700;
  color:var(--c-primary-deep);
  letter-spacing:-.01em;
}
.brand-sub{
  font-size:12px;
  font-weight:500;
  color:var(--c-primary);
  letter-spacing:.04em;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-menu a{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--c-text-muted);
  border-radius:var(--r-pill);
  transition:color .2s ease-out,background-color .2s ease-out;
}
.nav-menu a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--c-primary);
  transform:translate(-50%,4px) scale(0);
  transition:transform .22s ease-out,opacity .22s ease-out;
  opacity:0;
}
.nav-menu a:hover{color:var(--c-primary-deep);background:var(--c-tint);}
.nav-menu a:hover::after{transform:translate(-50%,0) scale(1);opacity:1;}
.nav-menu a.is-active{color:var(--c-primary);font-weight:700;background:var(--c-tint);}
.nav-menu a.is-active::after{transform:translate(-50%,0) scale(1);opacity:1;}
.nav-cta{flex-shrink:0;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:var(--r-pill);
  background:var(--c-tint);
  position:relative;
  flex-shrink:0;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;
  left:50%;
  width:18px;
  height:2px;
  background:var(--c-primary-deep);
  border-radius:2px;
  transform:translateX(-50%);
  transition:transform .22s ease-out,opacity .22s ease-out;
  content:"";
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateX(-50%) translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateX(-50%) translateY(-6px) rotate(-45deg);}

/* ---------- 面包屑 ---------- */
.crumb-bar{
  padding:120px 0 0;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-text-muted);
}
.breadcrumb a{color:var(--c-text-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#B6C6CD;}
.breadcrumb .current{color:var(--c-primary-deep);font-weight:600;}

/* ---------- 首屏 ---------- */
.page-hero{
  padding:32px 0 var(--sec-space);
  position:relative;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  top:-160px;
  right:-120px;
  width:520px;
  height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(28,110,140,.10),rgba(28,110,140,0) 70%);
  pointer-events:none;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--c-accent-soft);
  color:#C2500F;
  font-size:13px;
  font-weight:600;
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--c-accent);
}
.hero-title{
  font-size:46px;
  line-height:1.22;
  margin-bottom:20px;
}
.hero-title em{
  font-style:normal;
  color:var(--c-primary);
}
.hero-lead{
  font-size:17px;
  line-height:1.8;
  color:var(--c-text-muted);
  margin-bottom:26px;
  max-width:560px;
}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:30px;
}
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--c-tint);
  color:var(--c-primary-deep);
  font-size:13px;
  font-weight:600;
}
.badge-accent{background:var(--c-accent-soft);color:#C2500F;}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.hero-figure{
  position:relative;
  margin-top:8px;
}
.hero-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
}
.figure-chip{
  position:absolute;
  left:-16px;
  bottom:24px;
  background:#fff;
  border-radius:14px;
  padding:14px 18px;
  box-shadow:var(--sh-2);
  border:1px solid var(--c-line-soft);
  display:flex;
  align-items:center;
  gap:12px;
}
.figure-chip strong{
  font-size:26px;
  line-height:1;
  color:var(--c-accent);
  font-weight:700;
}
.figure-chip span{
  font-size:13px;
  color:var(--c-text-muted);
  line-height:1.5;
  max-width:110px;
}

/* ---------- 指标条 ---------- */
.stat-strip{
  margin-top:56px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:#fff;
  border:1px solid var(--c-line-soft);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.stat-item{
  padding:26px 24px;
  border-right:1px solid var(--c-line-soft);
  transition:background-color .22s ease-out;
}
.stat-item:last-child{border-right:0;}
.stat-item:hover{background:var(--c-tint);}
.stat-num{
  font-size:30px;
  font-weight:700;
  color:var(--c-primary-deep);
  line-height:1.1;
  letter-spacing:-.02em;
}
.stat-num small{
  font-size:14px;
  font-weight:600;
  color:var(--c-text-muted);
  margin-left:4px;
}
.stat-label{
  font-size:14px;
  color:var(--c-text-muted);
  margin-top:6px;
}

/* ---------- 通用板块 ---------- */
.section{padding:0 0 var(--sec-space);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:32px;
  line-height:1.25;
}
.section-head p{
  font-size:15px;
  color:var(--c-text-muted);
  margin-top:10px;
  margin-bottom:0;
  max-width:620px;
}
.section-kicker{
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--c-primary);
  text-transform:uppercase;
  margin-bottom:10px;
}

/* ---------- 编号条目列表 ---------- */
.step-list{
  background:#fff;
  border:1px solid var(--c-line-soft);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.step-item{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:20px;
  align-items:start;
  padding:24px 32px;
  border-bottom:1px solid var(--c-line-soft);
  transition:background-color .22s ease-out,transform .22s ease-out;
}
.step-item:last-child{border-bottom:0;}
.step-item:hover{background:#FBFDFE;}
.step-item:hover .step-num{color:var(--c-accent);}
.step-item:hover .step-title{color:var(--c-primary-deep);}
.step-num{
  font-size:24px;
  font-weight:700;
  color:var(--c-primary);
  line-height:1.3;
  letter-spacing:-.02em;
  transition:color .22s ease-out;
}
.step-title{
  font-size:18px;
  font-weight:700;
  margin-bottom:6px;
  transition:color .22s ease-out;
}
.step-desc{
  font-size:14px;
  color:var(--c-text-muted);
  line-height:1.75;
  margin:0;
}

/* ---------- 双列信息卡 ---------- */
.info-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
}
.info-card{
  background:#fff;
  border:1px solid var(--c-line-soft);
  border-radius:var(--r-md);
  padding:32px;
  box-shadow:var(--sh-1);
  transition:box-shadow .26s ease-out,transform .26s ease-out;
}
.info-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.info-card-head{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:20px;
}
.info-icon{
  width:40px;height:40px;
  border-radius:12px;
  background:var(--c-tint);
  color:var(--c-primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  font-weight:700;
  flex-shrink:0;
}
.info-card h3{font-size:20px;}
.check-list li{
  position:relative;
  padding:11px 0 11px 26px;
  font-size:15px;
  color:var(--c-text-muted);
  border-bottom:1px dashed var(--c-line);
  line-height:1.7;
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:19px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--c-primary);
  opacity:.55;
}
.time-list li{
  display:flex;
  justify-content:space-between;
  gap:16px;
  padding:12px 0;
  border-bottom:1px dashed var(--c-line);
  font-size:15px;
  color:var(--c-text-muted);
}
.time-list li:last-child{border-bottom:0;padding-bottom:0;}
.time-list strong{color:var(--c-primary-deep);font-weight:700;white-space:nowrap;}

/* ---------- 深色数据区块 ---------- */
.dark-band{
  background:linear-gradient(160deg,#0E3A4A 0%,#124A5E 52%,#175A73 100%);
  border-radius:var(--r-lg);
  padding:56px 48px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.dark-band::after{
  content:"";
  position:absolute;
  right:-140px;
  top:-140px;
  width:380px;height:380px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(238,108,45,.22),rgba(238,108,45,0) 70%);
}
.dark-band .section-kicker{color:var(--c-accent-light);}
.dark-band h2{color:#fff;font-size:32px;}
.dark-band .band-lead{
  color:rgba(255,255,255,.74);
  font-size:15px;
  max-width:600px;
  margin-top:12px;
}
.metric-grid{
  margin-top:40px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:rgba(255,255,255,.14);
  border-radius:var(--r-md);
  overflow:hidden;
  position:relative;
  z-index:1;
}
.metric{
  background:rgba(255,255,255,.045);
  padding:26px 22px;
  transition:background-color .24s ease-out;
}
.metric:hover{background:rgba(255,255,255,.10);}
.metric strong{
  display:block;
  font-size:34px;
  font-weight:700;
  line-height:1.1;
  color:var(--c-accent-light);
  letter-spacing:-.02em;
}
.metric span{
  display:block;
  margin-top:8px;
  font-size:14px;
  color:rgba(255,255,255,.72);
  line-height:1.6;
}

/* ---------- 图墙 ---------- */
.gallery{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.gallery-item{
  position:relative;
  border-radius:var(--r-md);
  overflow:hidden;
  background:#DDE8EC;
  box-shadow:var(--sh-1);
  transition:box-shadow .26s ease-out,transform .26s ease-out;
}
.gallery-item:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.gallery-item img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:0;
  transition:transform .4s ease-out;
}
.gallery-item:hover img{transform:scale(1.03);}
.gallery-cap{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:14px 18px;
  font-size:14px;
  font-weight:600;
  color:#fff;
  background:linear-gradient(to top,rgba(14,58,74,.86),rgba(14,58,74,0));
}

/* ---------- FAQ ---------- */
.faq-wrap{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:48px;
  align-items:start;
}
.faq-aside h2{font-size:32px;margin-bottom:14px;}
.faq-aside p{color:var(--c-text-muted);font-size:15px;margin-bottom:24px;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:14px;
  overflow:hidden;
  transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.faq-item:hover{border-color:#CFE0E7;box-shadow:var(--sh-1);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  transition:color .22s ease-out;
}
.faq-q:hover{color:var(--c-primary);}
.faq-icon{
  position:relative;
  width:20px;height:20px;
  flex-shrink:0;
  border-radius:50%;
  background:var(--c-tint);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  background:var(--c-primary);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .24s ease-out,opacity .24s ease-out;
}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;}
.faq-item.is-open{border-color:var(--c-primary);box-shadow:var(--sh-1);}
.faq-item.is-open .faq-q{color:var(--c-primary);}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s ease-out;
}
.faq-a p{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-text-muted);
  margin:0;
  border-top:1px solid var(--c-line-soft);
  padding-top:16px;
}

/* ---------- 底部 CTA ---------- */
.cta-band{padding-bottom:var(--sec-space);}
.cta-inner{
  background:var(--c-tint);
  border-radius:20px;
  padding:44px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-inner h2{font-size:28px;margin-bottom:10px;}
.cta-inner p{color:var(--c-text-muted);font-size:15px;margin:0;max-width:520px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-primary-darker);
  color:#fff;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.2fr 1.2fr;
  gap:32px;
  padding-bottom:48px;
}
.site-footer .brand-main{color:#fff;}
.site-footer .brand-sub{color:var(--c-accent-light);}
.footer-desc{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.68);
  max-width:320px;
}
.footer-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:18px;
}
.footer-tags span{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.1);
  color:rgba(255,255,255,.82);
  font-size:12px;
}
.footer-col h4{
  font-size:15px;
  color:#fff;
  margin-bottom:16px;
  font-weight:700;
}
.footer-col ul li{
  font-size:14px;
  color:rgba(255,255,255,.68);
  line-height:1.8;
  margin-bottom:10px;
}
.footer-col ul li a{color:rgba(255,255,255,.68);}
.footer-col ul li a:hover{color:var(--c-accent-light);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--sec-space:72px;}
  .hero-title{font-size:38px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--c-line-soft);}
  .info-grid{grid-template-columns:1fr;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .gallery{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .dark-band{padding:44px 32px;}
}
@media screen and (max-width:900px){
  .nav-menu{
    position:absolute;
    top:76px;
    left:0;
    right:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px;
    background:#fff;
    border:1px solid var(--c-line);
    border-radius:20px;
    box-shadow:var(--sh-2);
    display:none;
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu a{
    padding:14px 16px;
    font-size:15px;
    border-radius:14px;
    border-bottom:1px solid var(--c-line-soft);
  }
  .nav-menu a:last-child{border-bottom:0;}
  .nav-menu a::after{display:none;}
  .nav-cta{margin-left:auto;}
  .nav-toggle{display:block;}
  .nav-shell{gap:12px;padding:0 10px 0 18px;}
}
@media screen and (max-width:640px){
  .container{padding:0 20px;}
  :root{--sec-space:56px;}
  .site-header{top:10px;padding-top:10px;margin-bottom:-80px;}
  .nav-shell{height:58px;padding:0 8px 0 16px;}
  .nav-cta .btn{display:none;}
  .crumb-bar{padding-top:104px;}
  .page-hero{padding-top:24px;}
  .hero-title{font-size:34px;}
  .hero-lead{font-size:16px;}
  .hero-figure{margin-top:28px;}
  .figure-chip{left:8px;bottom:12px;padding:10px 14px;}
  .figure-chip strong{font-size:22px;}
  .stat-strip{margin-top:36px;}
  .stat-item{padding:20px 16px;}
  .stat-num{font-size:26px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:24px;}
  .section-head h2{font-size:24px;}
  .step-item{grid-template-columns:44px 1fr;gap:12px;padding:20px;}
  .step-num{font-size:20px;}
  .step-title{font-size:17px;}
  .info-card{padding:24px 20px;}
  .dark-band{padding:36px 22px;border-radius:20px;}
  .dark-band h2{font-size:24px;}
  .metric-grid{margin-top:28px;}
  .metric{padding:20px 16px;}
  .metric strong{font-size:26px;}
  .gallery{gap:14px;}
  .gallery-cap{padding:10px 12px;font-size:13px;}
  .faq-aside h2{font-size:24px;}
  .cta-inner{padding:28px 22px;flex-direction:column;align-items:flex-start;}
  .cta-inner h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    transition-duration:.01ms !important;
    animation-duration:.01ms !important;
  }
  .btn:hover,.info-card:hover,.gallery-item:hover,.gallery-item:hover img{transform:none;}
}

/* roulang page: article */
:root{
  --c-primary:#1C6E8C;
  --c-primary-deep:#124A5E;
  --c-primary-hover:#175A73;
  --c-accent:#EE6C2D;
  --c-accent-soft:#FFF1E6;
  --c-bg:#F6F8F9;
  --c-surface:#FFFFFF;
  --c-tint:#EAF4F8;
  --c-text:#17262C;
  --c-text-muted:#5A727C;
  --c-line:#E1E9EC;
  --c-line-soft:#EEF3F5;
  --c-input:#CBD9DE;
  --c-error:#D64545;
  --c-success:#1F9E7A;
  --r-xl:24px;
  --r-lg:20px;
  --r-md:18px;
  --r-sm:12px;
  --sh-1:0 8px 24px rgba(18,74,94,.08);
  --sh-2:0 16px 36px rgba(18,74,94,.14);
  --sh-3:0 24px 60px rgba(18,74,94,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{
  margin:0;
  font-family:inherit;
  font-weight:700;
  line-height:1.25;
  letter-spacing:-.01em;
  color:var(--c-text);
}
p{margin:0;}
ul,ol{margin:0;padding:0;}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-primary-hover);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
:focus-visible{outline:3px solid rgba(28,110,140,.28);outline-offset:2px;}
.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  padding-top:16px;
}
.nav-shell{
  display:flex;
  align-items:center;
  gap:26px;
  height:64px;
  padding:0 10px 0 24px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--c-line);
  border-radius:999px;
  box-shadow:var(--sh-1);
  transition:box-shadow .26s var(--ease),background .26s var(--ease);
}
.site-header.is-scrolled .nav-shell{
  box-shadow:var(--sh-2);
  background:rgba(255,255,255,.94);
}
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  flex-shrink:0;
  text-decoration:none;
}
.brand-main{
  font-size:18px;
  font-weight:700;
  color:var(--c-primary-deep);
  letter-spacing:-.01em;
}
.brand-sub{
  font-size:12px;
  font-weight:500;
  color:var(--c-text-muted);
  letter-spacing:.04em;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:8px;
}
.nav-menu a{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:8px 14px;
  font-size:15px;
  color:var(--c-text-muted);
  border-radius:999px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-menu a:hover{color:var(--c-primary);background:var(--c-tint);}
.nav-menu a.is-active{color:var(--c-primary);font-weight:500;}
.nav-menu a.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:1px;
  transform:translateX(-50%);
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--c-accent);
}
.nav-cta{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--c-line);
  background:#fff;
  border-radius:50%;
  position:relative;
  flex:0 0 auto;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;
  left:50%;
  width:16px;
  height:2px;
  background:var(--c-primary-deep);
  border-radius:2px;
  content:"";
  transform:translateX(-50%);
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateX(-50%) rotate(45deg);top:0;}
.nav-toggle[aria-expanded="true"] span::after{transform:translateX(-50%) rotate(-45deg);top:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 28px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  transition:background .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;border-color:var(--c-input);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-tint);border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 20px;font-size:14px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:38px 0 0;
  font-size:14px;
  color:var(--c-text-muted);
}
.breadcrumb a{color:var(--c-text-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#B7C7CE;}
.breadcrumb .crumb-current{
  max-width:340px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  color:var(--c-text);
}

/* ---------- 文章头部 ---------- */
.article-wrap{
  display:grid;
  grid-template-columns:minmax(0,1fr) 200px;
  gap:56px;
  max-width:1060px;
  margin:0 auto;
  padding-top:26px;
}
.article-main{min-width:0;max-width:780px;}
.article-head{padding-bottom:32px;}
.article-head h1{
  font-size:36px;
  line-height:1.35;
  font-weight:700;
  margin-bottom:20px;
  letter-spacing:-.012em;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  font-size:14px;
  color:var(--c-text-muted);
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#C3D2D8;display:inline-block;}
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:4px 12px;
  border-radius:999px;
  font-size:13px;
  font-weight:500;
  line-height:1;
  background:var(--c-tint);
  color:var(--c-primary);
  white-space:nowrap;
}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent);}
.share-btn{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 14px;
  margin-left:auto;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:999px;
  font-size:13px;
  color:var(--c-text-muted);
  transition:all .2s var(--ease);
}
.share-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-tint);}
.share-btn.is-done{color:var(--c-success);border-color:var(--c-success);background:#F1FAF7;}

/* ---------- 封面 ---------- */
.article-cover{
  margin:0 0 40px;
  border-radius:var(--r-lg);
  overflow:hidden;
  aspect-ratio:16/9;
  background:var(--c-tint);
  box-shadow:var(--sh-1);
}
.article-cover img{width:100%;height:100%;object-fit:cover;}

/* ---------- 正文 ---------- */
.article-body{
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-text);
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;
  margin:2em 0 .9em;
  padding-left:16px;
  font-size:24px;
  line-height:1.45;
  font-weight:700;
  letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  bottom:6px;
  width:4px;
  border-radius:2px;
  background:var(--c-primary);
}
.article-body h3{
  margin:1.7em 0 .7em;
  font-size:19px;
  line-height:1.5;
  font-weight:700;
}
.article-body h4{
  margin:1.4em 0 .6em;
  font-size:17px;
  font-weight:700;
}
.article-body ul,.article-body ol{
  margin:0 0 1.2em;
  padding-left:1.45em;
  line-height:1.8;
}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.4em 0;}
.article-body li::marker{color:var(--c-primary);}
.article-body blockquote{
  margin:1.6em 0;
  padding:16px 22px;
  background:var(--c-tint);
  border-left:3px solid var(--c-primary);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--c-text-muted);
  font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--r-sm);
  margin:1.6em auto;
  box-shadow:var(--sh-1);
}
.article-body a{
  color:var(--c-primary);
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-thickness:1px;
}
.article-body a:hover{color:var(--c-primary-hover);}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--c-text-muted);
  text-align:center;
}
.article-body table{
  width:100%;
  margin:1.6em 0;
  border-collapse:collapse;
  font-size:15px;
  line-height:1.7;
  border-radius:var(--r-sm);
  overflow:hidden;
}
.article-body th,.article-body td{
  padding:11px 14px;
  border:1px solid var(--c-line);
  text-align:left;
  vertical-align:top;
}
.article-body th{background:var(--c-tint);color:var(--c-primary-deep);font-weight:600;}
.article-body tbody tr:nth-child(even){background:#FAFCFD;}
.article-body code{
  padding:2px 6px;
  border-radius:6px;
  background:var(--c-tint);
  font-size:14px;
  color:var(--c-primary-deep);
}

/* ---------- 目录 ---------- */
.article-toc{
  position:sticky;
  top:100px;
  align-self:start;
  font-size:13px;
  line-height:1.7;
}
.article-toc h4{
  margin:0 0 12px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-text-muted);
}
.toc-list{
  list-style:none;
  margin:0;
  padding:0;
  border-left:1px solid var(--c-line);
}
.toc-list a{
  display:block;
  padding:7px 0 7px 14px;
  margin-left:-1px;
  border-left:2px solid transparent;
  color:var(--c-text-muted);
  font-size:13px;
  line-height:1.55;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.toc-list a:hover{color:var(--c-primary);}
.toc-list a.is-current{
  color:var(--c-primary);
  font-weight:700;
  border-left-color:var(--c-primary);
}

/* ---------- 标签与操作 ---------- */
.article-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:48px;
  padding-top:30px;
  border-top:1px solid var(--c-line);
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-text-muted);
  transition:all .2s var(--ease);
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-tint);}
.article-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}

/* ---------- 空态 ---------- */
.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:16px;
  min-height:220px;
  padding:48px 24px;
  margin-bottom:8px;
  background:#fff;
  border:1px dashed var(--c-line);
  border-radius:var(--r-md);
  text-align:center;
}
.empty-icon{
  width:56px;
  height:56px;
  border-radius:50%;
  background:var(--c-tint);
  color:var(--c-primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:24px;
  font-weight:700;
  opacity:.6;
}
.empty-state p{font-size:15px;color:var(--c-text-muted);}

/* ---------- 板块通用 ---------- */
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-head h2{font-size:28px;letter-spacing:-.012em;}
.section-head .link-more{
  font-size:14px;
  color:var(--c-primary);
  text-decoration:underline;
  text-underline-offset:4px;
  white-space:nowrap;
}
.section-head .link-more:hover{color:var(--c-primary-hover);}

/* ---------- 相关推荐 ---------- */
.related{padding:76px 0 0;}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.related-card{
  display:flex;
  gap:14px;
  padding:14px;
  background:var(--c-surface);
  border:1px solid var(--c-line-soft);
  border-radius:16px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.related-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--sh-2);
  border-color:var(--c-line);
}
.related-thumb{
  flex:0 0 auto;
  width:88px;
  height:74px;
  border-radius:12px;
  overflow:hidden;
  background:var(--c-tint);
}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.related-card:hover .related-thumb img{transform:scale(1.05);}
.related-info{min-width:0;display:flex;flex-direction:column;}
.related-info h3{
  font-size:15px;
  line-height:1.55;
  font-weight:600;
  color:var(--c-text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:8px;
}
.related-info span{
  margin-top:auto;
  font-size:12.5px;
  color:var(--c-text-muted);
}
.related-card:hover .related-info h3{color:var(--c-primary);}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  margin-top:76px;
  padding:44px 48px;
  background:var(--c-tint);
  border-radius:var(--r-xl);
  border:1px solid #DCEDF3;
}
.cta-band h2{font-size:26px;margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--c-text-muted);max-width:560px;}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  padding-top:72px;
  background:#0E3A4A;
  color:#fff;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.2fr 1.2fr;
  gap:32px;
}
.footer-brand .brand-main{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.62);}
.footer-desc{
  margin:16px 0 18px;
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.7);
}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
  padding:4px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.1);
  font-size:12px;
  color:rgba(255,255,255,.8);
}
.footer-col h4{
  margin:0 0 16px;
  font-size:15px;
  font-weight:600;
  color:#fff;
  letter-spacing:0;
}
.footer-col ul{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:10px;
  font-size:14px;
  line-height:1.7;
  color:rgba(255,255,255,.68);
}
.footer-col a{color:rgba(255,255,255,.68);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  margin-top:56px;
  padding:20px 0 28px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-wrap{
    grid-template-columns:minmax(0,1fr);
    gap:0;
    max-width:820px;
  }
  .article-main{max-width:100%;}
  .article-toc{display:none;}
}
@media (max-width:1024px){
  .container{padding:0 22px;}
  .nav-shell{gap:16px;padding:0 8px 0 20px;}
  .nav-menu a{padding:8px 11px;font-size:14.5px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 28px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .article-head h1{font-size:32px;}
  .cta-band{padding:36px 32px;flex-direction:column;align-items:flex-start;gap:22px;}
}
@media (max-width:860px){
  .nav-toggle{display:block;}
  .nav-shell{padding:0 8px 0 20px;height:60px;}
  .nav-menu{
    position:absolute;
    top:calc(100% + 10px);
    left:0;
    right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:8px;
    background:#fff;
    border:1px solid var(--c-line);
    border-radius:20px;
    box-shadow:var(--sh-2);
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu a{
    height:48px;
    padding:0 14px;
    border-radius:10px;
    border-bottom:1px solid var(--c-line-soft);
    color:var(--c-text);
  }
  .nav-menu a:last-child{border-bottom:0;}
  .nav-menu a.is-active::after{display:none;}
  .nav-shell{position:relative;}
  .nav-cta{margin-left:auto;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .site-header{padding-top:12px;}
  .nav-shell{height:56px;padding:0 8px 0 16px;border-radius:999px;}
  .brand-main{font-size:16px;}
  .brand-sub{font-size:11px;}
  .nav-cta{display:none;}
  .breadcrumb{padding-top:26px;font-size:13px;}
  .breadcrumb .crumb-current{max-width:200px;}
  .article-wrap{padding-top:20px;}
  .article-head h1{font-size:26px;line-height:1.4;margin-bottom:16px;}
  .article-meta{font-size:13px;gap:10px;}
  .share-btn{margin-left:0;}
  .article-cover{margin-bottom:28px;border-radius:16px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .article-tags{margin-top:36px;padding-top:24px;}
  .related{padding-top:56px;}
  .related-grid{grid-template-columns:minmax(0,1fr);gap:16px;}
  .section-head h2{font-size:22px;}
  .cta-band{padding:28px 22px;border-radius:20px;margin-top:56px;}
  .cta-band h2{font-size:21px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:30px;}
  .site-footer{margin-top:64px;padding-top:52px;}
  .footer-bottom{margin-top:36px;font-size:12.5px;flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  html{scroll-behavior:auto;}
  .btn:hover,.related-card:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1C6E8C;
  --c-primary-deep:#124A5E;
  --c-deepest:#0E3A4A;
  --c-primary-hover:#175A73;
  --c-accent:#EE6C2D;
  --c-accent-soft:#FFF1E6;
  --c-bg:#F6F8F9;
  --c-surface:#FFFFFF;
  --c-tint:#EAF4F8;
  --c-text:#17262C;
  --c-text-muted:#5A727C;
  --c-line:#E1E9EC;
  --c-line-soft:#EEF3F5;
  --c-input:#CBD9DE;
  --c-error:#D64545;
  --c-success:#1F9E7A;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --sh-1:0 8px 24px rgba(18,74,94,.08);
  --sh-2:0 16px 36px rgba(18,74,94,.14);
  --sh-3:0 24px 60px rgba(18,74,94,.12);
  --container:1180px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Inter",-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--c-primary-hover);}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;line-height:1.25;font-weight:700;color:var(--c-text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(28,110,140,.32);outline-offset:3px;border-radius:6px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:36px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-tint);
  padding:5px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow i{font-size:12px;color:var(--c-accent);}
h2.section-title{font-size:32px;line-height:1.3;}
.section-sub{margin-top:14px;font-size:16px;color:var(--c-text-muted);line-height:1.85;max-width:640px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:15px 28px;border-radius:999px;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-input);}
.btn-ghost:hover{background:var(--c-tint);border-color:var(--c-primary);color:var(--c-primary-hover);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:11px 20px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:16px;z-index:60;
  padding:0;
}
.nav-shell{
  display:flex;align-items:center;gap:24px;
  min-height:64px;padding:10px 12px 10px 24px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--c-line);
  border-radius:999px;
  box-shadow:var(--sh-1);
  transition:box-shadow .26s var(--ease),background .26s var(--ease);
}
.site-header.is-scrolled .nav-shell{box-shadow:var(--sh-2);background:rgba(255,255,255,.94);}
.brand{display:inline-flex;align-items:baseline;gap:6px;line-height:1;flex:0 0 auto;}
.brand-main{font-size:18px;font-weight:700;color:var(--c-primary-deep);letter-spacing:.01em;}
.brand-sub{font-size:12px;font-weight:500;color:var(--c-primary);letter-spacing:.06em;}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-menu a{
  position:relative;display:inline-block;
  font-size:15px;font-weight:500;color:var(--c-text-muted);
  padding:9px 16px;border-radius:999px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-menu a::after{
  content:"";position:absolute;left:50%;bottom:4px;
  width:5px;height:5px;border-radius:50%;background:var(--c-accent);
  transform:translate(-50%,4px) scale(.4);opacity:0;
  transition:opacity .22s var(--ease),transform .22s var(--ease);
}
.nav-menu a:hover{color:var(--c-primary);background:var(--c-tint);}
.nav-menu a:hover::after,.nav-menu a.is-active::after{opacity:1;transform:translate(-50%,0) scale(1);}
.nav-menu a.is-active{color:var(--c-primary);font-weight:600;background:var(--c-tint);}
.nav-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--c-line);background:var(--c-surface);
  cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--c-primary-deep);border-radius:2px;
  transform:translateX(-50%);transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{padding:36px 0 0;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--c-text-muted);
}
.breadcrumb a{color:var(--c-text-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--c-input);}
.breadcrumb .current{color:var(--c-primary-deep);font-weight:600;}

/* ---------- 居中首屏 ---------- */
.hero-center{
  padding:48px 0 72px;
  text-align:center;
  position:relative;
  background:
    radial-gradient(680px 340px at 50% 0%, rgba(28,110,140,.09), transparent 72%),
    radial-gradient(420px 260px at 88% 24%, rgba(238,108,45,.07), transparent 70%);
}
.hero-center .hero-inner{max-width:760px;margin:0 auto;}
.hero-center h1{
  font-size:44px;line-height:1.24;letter-spacing:-.02em;
  margin-bottom:20px;
}
.hero-center h1 em{font-style:normal;color:var(--c-primary);}
.hero-center .hero-lead{
  font-size:17px;line-height:1.9;color:var(--c-text-muted);
  max-width:660px;margin:0 auto 32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
.hero-badges{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:32px;
}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  height:30px;padding:4px 14px;border-radius:999px;
  font-size:13px;font-weight:500;
  background:var(--c-tint);color:var(--c-primary);
}
.badge i{font-size:12px;}
.badge-accent{background:var(--c-accent-soft);color:#C4501A;}

/* ---------- 数据条 ---------- */
.metric-strip{
  margin-top:-8px;
}
.metric-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.metric-card{
  background:var(--c-surface);border:1px solid var(--c-line-soft);
  border-radius:var(--r-md);padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.metric-num{
  font-size:34px;font-weight:700;line-height:1.1;color:var(--c-primary-deep);
  font-variant-numeric:tabular-nums;
}
.metric-num span{font-size:16px;font-weight:600;color:var(--c-accent);margin-left:4px;}
.metric-label{margin-top:8px;font-size:14px;color:var(--c-text-muted);}

/* ---------- 步骤时间线 ---------- */
.steps-wrap{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
  position:relative;
}
.step{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-line-soft);
  border-radius:var(--r-md);
  padding:28px 24px 26px;
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8E6EB;}
.step-node{
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;color:#fff;
  background:var(--c-primary);
  box-shadow:0 6px 16px rgba(28,110,140,.24);
  margin-bottom:18px;
}
.step:hover .step-node{background:var(--c-accent);box-shadow:0 6px 16px rgba(238,108,45,.28);}
.step h3{font-size:18px;margin-bottom:10px;}
.step p{font-size:14px;line-height:1.8;color:var(--c-text-muted);}
.step::after{
  content:"";position:absolute;top:50px;right:-13px;width:16px;height:2px;
  background:repeating-linear-gradient(90deg,var(--c-input) 0 5px,transparent 5px 9px);
}
.step:last-child::after{display:none;}

/* ---------- 图文切换 ---------- */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.split + .split{margin-top:80px;}
.split.reverse .split-media{order:2;}
.split-media{
  border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-2);position:relative;
}
.split-media img{
  width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;
  transition:transform .5s var(--ease);
}
.split-media:hover img{transform:scale(1.03);}
.split-media .media-tag{
  position:absolute;left:16px;bottom:16px;
  background:rgba(255,255,255,.94);
  border-radius:var(--r-sm);padding:8px 14px;
  font-size:13px;font-weight:600;color:var(--c-primary-deep);
  box-shadow:var(--sh-1);
}
.split-body h3{font-size:24px;margin-bottom:16px;}
.split-body p{font-size:16px;color:var(--c-text-muted);line-height:1.9;margin-bottom:14px;}
.check-list{margin-top:20px;}
.check-list li{
  position:relative;padding-left:28px;margin-bottom:12px;
  font-size:15px;color:var(--c-text);line-height:1.75;
}
.check-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:2px;
  font-size:12px;color:var(--c-success);
  background:rgba(31,158,122,.1);
  width:20px;height:20px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
}

/* ---------- 深色指标带 ---------- */
.dark-band{
  background:linear-gradient(135deg,#124A5E 0%,#0E3A4A 100%);
  border-radius:var(--r-lg);
  padding:56px 48px;
  color:#fff;
  display:grid;grid-template-columns:1.1fr 2fr;gap:48px;align-items:center;
  box-shadow:var(--sh-2);
}
.dark-band h2{color:#fff;font-size:28px;line-height:1.35;}
.dark-band .dark-desc{margin-top:14px;font-size:15px;color:rgba(255,255,255,.72);line-height:1.85;}
.dark-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.dark-metric{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-md);
  padding:22px 18px;
  transition:background .24s var(--ease),transform .24s var(--ease);
}
.dark-metric:hover{background:rgba(255,255,255,.14);transform:translateY(-3px);}
.dark-metric strong{
  display:block;font-size:28px;font-weight:700;color:#fff;line-height:1.15;
  font-variant-numeric:tabular-nums;
}
.dark-metric strong b{color:var(--c-accent);font-size:16px;font-weight:700;margin-left:3px;}
.dark-metric span{display:block;margin-top:8px;font-size:13px;color:rgba(255,255,255,.68);line-height:1.6;}

/* ---------- 注意事项卡片 ---------- */
.notice-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.notice-card{
  background:var(--c-surface);
  border:1px solid var(--c-line-soft);
  border-radius:var(--r-md);
  padding:30px 28px;
  box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
  position:relative;overflow:hidden;
}
.notice-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:var(--c-tint);transition:background .24s var(--ease);
}
.notice-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.notice-card:hover::before{background:var(--c-accent);}
.notice-icon{
  width:44px;height:44px;border-radius:var(--r-sm);
  display:flex;align-items:center;justify-content:center;
  background:var(--c-tint);color:var(--c-primary);
  font-size:17px;margin-bottom:16px;
}
.notice-card h3{font-size:18px;margin-bottom:10px;}
.notice-card p{font-size:14.5px;color:var(--c-text-muted);line-height:1.85;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line-soft);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item[open]{border-color:#D3E4EA;box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;
  font-size:16px;font-weight:600;color:var(--c-text);
  transition:color .24s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  font-size:20px;font-weight:400;line-height:1;
  color:var(--c-primary);width:24px;text-align:center;
  transition:transform .2s var(--ease);
}
.faq-item[open] summary{color:var(--c-primary);}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);}
.faq-item summary:hover{color:var(--c-primary);}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-text-muted);}
.faq-item[open] .faq-body{animation:fadeUp .26s var(--ease);}
@keyframes fadeUp{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:translateY(0);}}

/* ---------- 收尾 CTA ---------- */
.cta-band{
  background:var(--c-tint);
  border-radius:var(--r-lg);
  padding:52px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:26px;line-height:1.35;max-width:520px;}
.cta-band p{margin-top:10px;font-size:15px;color:var(--c-text-muted);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-deepest);
  color:#fff;
  padding:72px 0 32px;
  margin-top:96px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.2fr;gap:32px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand .brand-main{color:#fff;}
.footer-brand .brand-sub{color:#7FC4DA;}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:340px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.footer-tags span{
  font-size:12px;padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,.82);
}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600;}
.footer-col ul li{
  font-size:14px;color:rgba(255,255,255,.66);line-height:1.9;margin-bottom:8px;
}
.footer-col ul li a{color:rgba(255,255,255,.66);}
.footer-col ul li a:hover{color:#fff;}
.footer-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .dark-band{grid-template-columns:1fr;gap:32px;}
  .dark-metrics{grid-template-columns:repeat(4,1fr);}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .hero-center h1{font-size:36px;}
  .steps-wrap{grid-template-columns:repeat(2,1fr);}
  .step::after{display:none;}
  .split{gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-band{padding:44px 36px;}
}
@media (max-width:880px){
  .nav-menu{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--c-surface);
    border:1px solid var(--c-line);
    border-radius:20px;
    box-shadow:var(--sh-2);
    padding:8px;
    display:none;
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu a{
    padding:0 18px;height:48px;display:flex;align-items:center;
    border-radius:12px;font-size:15px;
  }
  .nav-menu a + a{border-top:1px solid var(--c-line-soft);border-radius:0 0 12px 12px;}
  .nav-menu a::after{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:block;}
  .nav-shell{padding:10px 12px 10px 20px;position:relative;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .hero-center{padding:36px 0 56px;}
  .hero-center h1{font-size:30px;}
  .hero-center .hero-lead{font-size:16px;}
  .metric-grid{grid-template-columns:1fr 1fr;gap:14px;}
  .metric-card{padding:20px 18px;}
  .metric-num{font-size:26px;}
  .steps-wrap{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split.reverse .split-media{order:0;}
  .notice-grid{grid-template-columns:1fr;}
  .dark-band{padding:36px 24px;}
  .dark-metrics{grid-template-columns:1fr 1fr;}
  .cta-band{padding:32px 24px;flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .site-footer{padding:56px 0 28px;margin-top:56px;}
  h2.section-title{font-size:24px;}
  .split-body h3{font-size:20px;}
}
@media (max-width:520px){
  .hero-center h1{font-size:26px;}
  .hero-actions .btn{width:100%;}
  .metric-grid{grid-template-columns:1fr;}
  .dark-metrics{grid-template-columns:1fr;}
  .breadcrumb{font-size:13px;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-body{padding:0 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .btn:hover,.metric-card:hover,.step:hover,.notice-card:hover,.dark-metric:hover{transform:none;}
  .split-media:hover img{transform:none;}
}