/* roulang page: index */
:root{
  --color-bg-light:#F6F7F9;
  --color-bg-dark:#101B2A;
  --color-bg-deeper:#0B1420;
  --color-surface:#FFFFFF;
  --color-surface-deep:#ECEFF3;
  --color-primary:#16324F;
  --color-accent:#FB6B22;
  --color-accent-deep:#E4550F;
  --color-accent-soft:#FDE6D8;
  --color-online:#12A594;
  --color-text-main:#182433;
  --color-text-secondary:#57626F;
  --color-border:#DCE0E5;
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --radius-card:14px;
  --radius-card-lg:18px;
  --shadow-sm:0 4px 14px rgba(16,27,42,.04);
  --shadow-md:0 12px 28px rgba(16,27,42,.10);
  --shadow-lg:0 18px 40px rgba(16,27,42,.13);
  --section-space:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.75;
  color:var(--color-text-main);
  background:#fff;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color .2s ease,border-color .2s ease,background-color .2s ease}

.container{max-width:1240px}
h1,h2,h3,h4,h5,h6{margin:0;line-height:1.3;font-weight:800;color:var(--color-primary)}
p{margin:0}

.section-pad{padding-top:var(--section-space);padding-bottom:var(--section-space)}
@media(max-width:991.98px){:root{--section-space:72px}}
@media(max-width:767.98px){:root{--section-space:56px}}

.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(13,22,36,.94);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.site-header .header-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:68px;
}
.site-header .header-inner{
  position:relative;
}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:0;
  color:#fff;
  font-size:1.28rem;
  font-weight:800;
  letter-spacing:.01em;
}
.brand-logo .brand-cn{color:#fff}
.brand-logo .brand-lat{
  font-family:"Inter",Bahnschrift,system-ui,sans-serif;
  font-weight:650;
  font-size:1.16rem;
  letter-spacing:.04em;
  color:var(--color-accent);
  margin:0 .08em;
}
.brand-logo .brand-mark{
  width:32px;height:32px;
  border-radius:9px;
  background:var(--color-primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-right:10px;
  font-size:1rem;
  color:var(--color-accent);
  font-weight:800;
}
.brand-logo:hover{color:#fff}
.header-utils{
  display:flex;
  align-items:center;
  gap:10px;
}
.header-cta{
  background:var(--color-accent);
  color:#fff;
  border:1px solid var(--color-accent);
  height:40px;
  padding:0 18px;
  border-radius:7px;
  font-size:.9rem;
  font-weight:600;
  font-family:var(--font-main);
  display:inline-flex;
  align-items:center;
  transition:all .22s ease;
}
.header-cta:hover{
  background:var(--color-accent-deep);
  border-color:var(--color-accent-deep);
  color:#fff;
  box-shadow:0 8px 18px rgba(224,86,20,.28);
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:8px;
  padding-bottom:14px;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-panel::-webkit-scrollbar{display:none}
.nav-chip{
  display:inline-flex;
  align-items:center;
  padding:9px 20px;
  border-radius:999px;
  font-size:.92rem;
  font-weight:500;
  color:rgba(255,255,255,.74);
  background:rgba(255,255,255,.06);
  white-space:nowrap;
  border:1px solid rgba(255,255,255,.08);
  transition:all .22s ease;
}
.nav-chip:hover{
  color:#fff;
  background:rgba(255,255,255,.14);
  border-color:rgba(255,255,255,.14);
}
.nav-chip:focus-visible{
  outline:3px solid rgba(251,107,34,.55);
  outline-offset:2px;
}
.nav-chip.active{
  background:var(--color-accent);
  border-color:var(--color-accent);
  color:#fff;
  font-weight:650;
  box-shadow:0 6px 16px rgba(251,107,34,.32);
}
@media(max-width:575.98px){
  .site-header .header-row{height:60px}
  .brand-logo{font-size:1.06rem}
  .brand-logo .brand-mark{width:28px;height:28px;margin-right:8px;font-size:.88rem}
  .header-cta{display:none}
  .nav-chip{padding:7px 15px;font-size:.85rem}
}

.hero{
  position:relative;
  color:#fff;
  background:var(--color-bg-dark);
  overflow:hidden;
  padding-top:72px;
  padding-bottom:76px;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.56;
}
.hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(10,20,34,.96) 0%,rgba(10,20,34,.82) 52%,rgba(10,20,34,.46) 100%);
}
.hero-corner{
  position:absolute;
  left:0;top:0;
  width:92px;height:92px;
  border-left:1px solid rgba(255,255,255,.28);
  border-top:1px solid rgba(255,255,255,.28);
  opacity:.5;
}
.hero-corner.hero-corner-bottom{
  left:auto;top:auto;right:0;bottom:0;
  border-left:none;border-top:none;
  border-right:1px solid rgba(255,255,255,.28);
  border-bottom:1px solid rgba(255,255,255,.28);
}
.hero-inner{
  position:relative;
  z-index:2;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.86rem;
  color:#fff;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  padding:7px 16px;
  border-radius:999px;
  margin-bottom:22px;
  letter-spacing:.02em;
}
.hero-eyebrow i{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--color-online);
  box-shadow:0 0 0 4px rgba(18,165,148,.18);
}
.hero h1{
  color:#fff;
  font-size:clamp(2.1rem,4.2vw,3.28rem);
  font-weight:800;
  letter-spacing:.015em;
  line-height:1.22;
  max-width:760px;
  margin-bottom:24px;
}
.hero-lead{
  color:rgba(255,255,255,.76);
  font-size:1.05rem;
  line-height:1.9;
  max-width:620px;
  margin-bottom:34px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:52px;
}
.btn-hero{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:50px;
  padding:0 28px;
  border-radius:9px;
  font-weight:650;
  font-size:.98rem;
  color:#fff;
  background:var(--color-accent);
  border:1px solid var(--color-accent);
  transition:all .22s ease;
  box-shadow:0 10px 22px rgba(251,107,34,.24);
}
.btn-hero:hover{
  background:var(--color-accent-deep);
  border-color:var(--color-accent-deep);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 14px 28px rgba(224,86,20,.3);
}
.btn-hero:active{transform:translateY(0)}
.btn-hero:focus-visible,.btn-ghost:focus-visible,.btn-primary:focus-visible{
  outline:3px solid rgba(251,107,34,.55);
  outline-offset:3px;
}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:50px;
  padding:0 27px;
  border-radius:9px;
  font-weight:600;
  font-size:.98rem;
  color:#fff;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.35);
  transition:all .22s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.15);color:#fff;border-color:rgba(255,255,255,.7)}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:2px;
  border:1px solid rgba(255,255,255,.12);
  border-radius:16px;
  overflow:hidden;
  background:rgba(255,255,255,.06);
  margin-top:8px;
}
.hero-stat{
  background:rgba(12,22,36,.68);
  padding:22px 18px;
  text-align:left;
}
.hero-stat b{
  font-size:1.72rem;
  font-weight:800;
  display:block;
  color:#fff;
  line-height:1.2;
  letter-spacing:.02em;
}
.hero-stat b i{
  font-style:normal;
  color:var(--color-accent);
  font-size:1rem;
  font-weight:650;
  margin-left:2px;
}
.hero-stat span{
  color:rgba(255,255,255,.55);
  font-size:.82rem;
  display:block;
  margin-top:8px;
}
.hero-visual{
  border-radius:var(--radius-card-lg);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  position:relative;
  border:1px solid rgba(255,255,255,.22);
  background:rgba(10,19,33,.5);
}
.hero-visual img{
  width:100%;
  height:360px;
  object-fit:cover;
}
.hero-visual-caption{
  position:absolute;
  left:14px;right:14px;bottom:14px;
  background:rgba(8,15,26,.78);
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.16);
  border-radius:13px;
  padding:14px 18px;
  color:#fff;
}
.hero-visual-caption b{font-size:.98rem;display:block;margin-bottom:3px;color:#fff}
.hero-visual-caption span{color:rgba(255,255,255,.62);font-size:.82rem}
@media(max-width:991.98px){
  .hero{padding-top:58px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-actions{margin-bottom:34px}
}
@media(max-width:575.98px){
  .hero h1{font-size:1.82rem}
  .hero-lead{font-size:.96rem}
  .btn-hero,.btn-ghost{width:100%;padding:0 16px}
  .hero-stat b{font-size:1.32rem}
}

.section-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--color-accent);
  font-size:.83rem;
  font-weight:650;
  letter-spacing:.08em;
  margin-bottom:14px;
}
.section-label::before{
  content:"";
  width:8px;height:8px;
  border-radius:50%;
  background:var(--color-accent);
  box-shadow:0 0 0 4px rgba(251,107,34,.18);
}
.section-title{
  font-size:clamp(1.55rem,2.6vw,2.1rem);
  letter-spacing:.01em;
  color:var(--color-primary);
}
.section-sub{
  color:var(--color-text-secondary);
  font-size:1.02rem;
  margin-top:14px;
  max-width:560px;
  line-height:1.85;
}

.pain-section{
  background:var(--color-bg-light);
}
.pain-cards{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:2px;
  background:var(--color-border);
  border:1px solid var(--color-border);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.pain-item{
  background:var(--color-surface);
  padding:28px 26px;
  transition:box-shadow .22s ease,background-color .22s ease;
}
.pain-item:hover{
  background:#fff;
  box-shadow:inset 0 0 0 2px rgba(251,107,34,.08);
}
.pain-item .pain-no{
  display:block;
  font-size:.78rem;
  color:var(--color-accent);
  font-weight:700;
  letter-spacing:.1em;
  margin-bottom:12px;
}
.pain-item h3{font-size:1.12rem;margin-bottom:10px;font-weight:700;color:var(--color-primary)}
.pain-item p{font-size:.93rem;color:var(--color-text-secondary);line-height:1.75;margin:0}
@media(max-width:767.98px){
  .pain-cards{grid-template-columns:1fr}
  .pain-item{padding:22px 20px}
}

.solution-section{
  background:var(--color-surface);
}
.solution-list{
  position:relative;
  list-style:none;
  padding:0;
  margin:34px 0 0;
}
.solution-list li{
  position:relative;
  padding:0 0 32px 30px;
}
.solution-list li::before{
  content:"";
  position:absolute;
  left:6px;top:8px;
  width:14px;height:14px;
  border-radius:50%;
  background:var(--color-surface);
  border:4px solid var(--color-accent);
  box-shadow:0 0 0 4px rgba(251,107,34,.12);
}
.solution-list li:not(:last-child)::after{
  content:"";
  position:absolute;
  left:12px;top:32px;bottom:0;
  width:2px;
  background:linear-gradient(180deg,rgba(251,107,34,.5),rgba(251,107,34,.05));
}
.solution-list .step-num{
  display:block;
  font-size:.76rem;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--color-online);
  margin-bottom:8px;
}
.solution-list h3{font-size:1.12rem;font-weight:700;margin-bottom:8px;color:var(--color-primary)}
.solution-list p{font-size:.93rem;color:var(--color-text-secondary);line-height:1.78;max-width:560px}
.solution-visual{
  position:relative;
  border-radius:var(--radius-card-lg);
  overflow:hidden;
  border:1px solid var(--color-border);
  box-shadow:var(--shadow-md);
  background:var(--color-bg-dark);
  min-height:300px;
}
.solution-visual img{
  width:100%;height:100%;min-height:320px;object-fit:cover;
}
.solution-float{
  position:absolute;
  right:16px;bottom:16px;
  background:rgba(5,12,22,.9);
  color:#fff;
  backdrop-filter:blur(10px);
  padding:14px 18px;
  border-radius:13px;
  border:1px solid rgba(255,255,255,.18);
  font-size:.87rem;
  max-width:230px;
}
.solution-float b{color:#fff;display:block;font-size:.95rem;margin-bottom:4px}
.solution-float span{color:rgba(255,255,255,.6);line-height:1.55}
@media(max-width:991.98px){.solution-visual{margin-top:20px;min-height:300px}}

.results-section{
  background:var(--color-bg-dark);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.results-section::before{
  content:"KAIYUN";
  position:absolute;
  right:-30px;top:-30px;
  font-size:8rem;
  font-weight:800;
  letter-spacing:-.04em;
  font-family:"Inter",sans-serif;
  color:rgba(255,255,255,.045);
  line-height:1;
}
.results-section .section-title{color:#fff}
.results-section .section-sub{color:rgba(255,255,255,.58)}
.results-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
  border-top:1px solid rgba(255,255,255,.14);
  padding-top:48px;
  margin-top:48px;
}
.result-item{
  padding:18px 0 18px 28px;
  border-left:2px solid rgba(255,255,255,.16);
}
.result-item b{
  display:block;
  font-size:2rem;
  font-weight:800;
  color:var(--color-accent);
  line-height:1.15;
  margin-bottom:14px;
}
.result-item h3{
  color:#fff;
  font-size:1.15rem;
  font-weight:700;
  margin-bottom:10px;
}
.result-item p{
  color:rgba(255,255,255,.55);
  font-size:.9rem;
  line-height:1.75;
}
.result-badges{
  margin-top:46px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  padding-top:34px;
  border-top:1px solid rgba(255,255,255,.1);
}
.result-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.1);
  color:rgba(255,255,255,.72);
  border-radius:999px;
  padding:8px 18px;
  font-size:.84rem;
  transition:all .22s ease;
}
.result-badge i{
  width:6px;height:6px;
  border-radius:50%;
  background:var(--color-online);
}
.result-badge:hover{background:rgba(255,255,255,.14);color:#fff}
@media(max-width:767.98px){
  .results-grid{grid-template-columns:1fr}
  .result-badges{gap:8px}
  .result-badge{font-size:.8rem;padding:7px 14px}
}

.testimonials-section{
  background:var(--color-bg-light);
}
.testimonials-list{
  display:grid;
  gap:26px;
  margin-top:42px;
}
.quote-card{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:16px;
  padding:30px 32px;
  box-shadow:var(--shadow-sm);
  position:relative;
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.quote-card:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-3px);
  border-color:rgba(251,107,34,.3);
}
.quote-card::before{
  content:"“";
  position:absolute;
  right:24px;top:-4px;
  font-size:4.5rem;
  line-height:1;
  color:var(--color-accent-soft);
  font-family:Georgia,serif;
  z-index:1;
}
.quote-card p{
  font-size:1rem;
  color:var(--color-text-main);
  line-height:1.85;
  position:relative;
  z-index:2;
  margin-bottom:20px;
}
.quote-person{
  display:flex;
  align-items:center;
  gap:13px;
}
.quote-person img{
  width:46px;height:46px;
  border-radius:50%;
  object-fit:cover;
  border:2px solid var(--color-accent-soft);
}
.quote-person b{
  display:block;
  font-weight:650;
  color:var(--color-primary);
  font-size:.98rem;
}
.quote-person span{
  color:var(--color-text-secondary);
  font-size:.85rem;
}

.cms-section{
  background:var(--color-bg-light);
  border-top:1px solid var(--color-border);
  border-bottom:1px solid var(--color-border);
}
.cms-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:34px;
}
.cms-head-right{
  font-size:.92rem;
  color:var(--color-text-secondary);
  display:inline-flex;
  gap:6px;
  align-items:center;
  white-space:nowrap;
}
.cms-head-right:hover{color:var(--color-accent)}
.cms-list{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.cms-item{
  display:flex;
  align-items:center;
  gap:28px;
  padding:24px 28px;
  border-bottom:1px solid var(--color-border);
  transition:background-color .18s ease;
}
.cms-item:last-child{border-bottom:0}
.cms-item:hover{background:var(--color-bg-light)}
.cms-item:hover .cms-item-title{color:var(--color-accent)}
.cms-item-cat{
  flex:0 0 140px;
  color:var(--color-accent);
  background:var(--color-accent-soft);
  border-radius:999px;
  padding:6px 14px;
  font-size:.82rem;
  font-weight:600;
  text-align:center;
  display:inline-flex;
  width:fit-content;
  align-items:center;
}
.cms-item-body{
  flex:1;
  min-width:0;
}
.cms-item-title{
  color:var(--color-primary);
  font-weight:700;
  font-size:1.05rem;
  line-height:1.55;
  display:block;
  transition:color .18s ease;
}
.cms-item-summary{
  color:var(--color-text-secondary);
  font-size:.89rem;
  margin-top:5px;
  display:block;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.cms-item-date{
  color:var(--color-text-secondary);
  font-size:.82rem;
  white-space:nowrap;
  font-family:"Inter",sans-serif;
}
.cms-empty{
  border:1px dashed var(--color-border);
  border-radius:var(--radius-card);
  background:var(--color-surface-deep);
  text-align:center;
  padding:64px 28px;
  color:var(--color-text-secondary);
}
.cms-empty .empty-icon{
  width:60px;height:60px;
  margin:0 auto 18px;
  border-radius:16px;
  background:var(--color-surface);
  border:1px solid var(--color-border);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.7rem;
}
.cms-empty h3{color:var(--color-primary);font-size:1.18rem;margin-bottom:8px}
.cms-empty p{color:var(--color-text-secondary);font-size:.94rem}
.cms-empty button{
  margin-top:20px;
  border:1px solid var(--color-border);
  background:var(--color-surface);
  color:var(--color-primary);
  padding:10px 22px;
  border-radius:999px;
  font-size:.9rem;
  cursor:pointer;
  transition:all .2s ease;
}
.cms-empty button:hover{border-color:var(--color-accent);color:var(--color-accent)}
@media(max-width:767.98px){
  .cms-head{display:block}
  .cms-head-right{margin-top:12px;display:inline-flex}
  .cms-item{flex-direction:column;align-items:flex-start;gap:12px;padding:22px 20px}
  .cms-item-cat{flex:none}
  .cms-item-date{align-self:flex-start}
}

.faq-section{
  background:var(--color-surface);
}
.faq-layout{
  display:grid;
  grid-template-columns:1fr 1.5fr;
  gap:50px;
}
.faq-accordion .accordion-item{
  border:0;
  border-bottom:1px solid var(--color-border);
  background:transparent;
}
.faq-accordion .accordion-item:last-child{border-bottom:0}
.faq-accordion .accordion-button{
  background:transparent;
  font-family:var(--font-main);
  font-size:1.05rem;
  font-weight:650;
  color:var(--color-primary);
  padding:25px 0 22px;
  border-radius:0;
  box-shadow:none;
  transition:color .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--color-accent);
  background:transparent;
}
.faq-accordion .accordion-button:hover{color:var(--color-accent)}
.faq-accordion .accordion-button:focus{
  box-shadow:none;
  border:0;
}
.faq-accordion .accordion-button:focus-visible{
  outline:3px solid rgba(251,107,34,.4);
  outline-offset:4px;
  border-radius:8px;
}
.faq-accordion .accordion-button::after{
  content:"+";
  font-family:var(--font-main);
  font-size:1.5rem;
  line-height:1;
  flex:0 0 auto;
  width:30px;
  height:30px;
  border-radius:50%;
  background:var(--color-bg-light);
  color:var(--color-text-secondary);
  display:flex;
  align-items:center;
  justify-content:center;
  transform:none;
  transition:background-color .2s ease,color .2s ease,transform .25s ease;
  background-image:none;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  background:var(--color-accent);
  color:#fff;
  content:"−";
  transform:rotate(0deg);
}
.faq-accordion .accordion-body{
  padding:2px 0 28px;
  color:var(--color-text-secondary);
  font-size:.95rem;
  line-height:1.85;
  max-width:650px;
}
.faq-chip{
  display:inline-flex;
  margin-top:18px;
  background:var(--color-bg-light);
  color:var(--color-text-secondary);
  border:1px solid var(--color-border);
  padding:9px 17px;
  border-radius:999px;
  font-size:.85rem;
  transition:all .2s ease;
}
.faq-chip:hover{color:var(--color-accent);border-color:var(--color-accent)}
@media(max-width:991.98px){
  .faq-layout{grid-template-columns:1fr;gap:30px}
}

.cta-section{
  position:relative;
  background:var(--color-bg-deeper);
  overflow:hidden;
  padding-top:88px;
  padding-bottom:88px;
}
.cta-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.38;
}
.cta-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(8,14,26,.2) 0%,rgba(8,14,26,.86) 100%);
}
.cta-inner{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:760px;
  margin:0 auto;
  background:rgba(10,18,32,.78);
  border:1px solid rgba(255,255,255,.14);
  border-radius:24px;
  padding:60px 44px;
  backdrop-filter:blur(8px);
}
.cta-inner .section-title{color:#fff}
.cta-inner .section-sub{
  margin-left:auto;
  margin-right:auto;
  color:rgba(255,255,255,.62);
}
.cta-actions{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:14px;
  margin-top:34px;
}
.cta-watermark{
  position:absolute;
  right:22px;bottom:12px;
  color:rgba(255,255,255,.035);
  font-size:2.1rem;
  font-weight:800;
  letter-spacing:.08em;
  pointer-events:none;
  z-index:1;
}
@media(max-width:575.98px){
  .cta-inner{padding:40px 20px}
  .cta-actions .btn-hero,.cta-actions .btn-ghost{width:100%}
}

.site-footer{
  background:var(--color-bg-deeper);
  color:rgba(255,255,255,.6);
  padding-top:62px;
}
.footer-top{
  border-bottom:1px solid rgba(255,255,255,.08);
  padding-bottom:46px;
}
.footer-brand-txt{
  font-size:1.25rem;
  font-weight:800;
  color:#fff;
  display:block;
  margin-bottom:12px;
}
.footer-brand-txt span{color:var(--color-accent)}
.footer-intro{
  color:rgba(255,255,255,.48);
  font-size:.9rem;
  line-height:1.8;
  max-width:300px;
  margin-top:10px;
}
.footer-title{
  font-size:.95rem;
  font-weight:700;
  color:#fff;
  margin-bottom:20px;
}
.footer-links{
  list-style:none;
  margin:0;
  padding:0;
}
.footer-links li{margin-bottom:12px}
.footer-links a{
  color:rgba(255,255,255,.56);
  font-size:.9rem;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a:hover{
  color:var(--color-accent);
  padding-left:4px;
}
.footer-links a:focus-visible{
  outline:2px solid rgba(251,107,34,.6);
  border-radius:4px;
}
.footer-bottom{
  padding:24px 0 18px;
  font-size:.84rem;
  color:rgba(255,255,255,.4);
}
.footer-word{
  margin-top:18px;
  color:rgba(255,255,255,.065);
  font-size:4.6vw;
  font-weight:800;
  line-height:1;
  letter-spacing:-.02em;
  text-align:center;
  user-select:none;
  pointer-events:none;
}
@media(max-width:991.98px){
  .footer-top .row{gap:30px}
  .footer-word{font-size:7vw}
}
.btn-primary-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  background:var(--color-accent);
  color:#fff;
  border:1px solid var(--color-accent);
  border-radius:9px;
  padding:0 26px;
  font-weight:650;
  font-size:.96rem;
  transition:all .22s ease;
  font-family:var(--font-main);
}
.btn-primary-brand:hover{
  background:var(--color-accent-deep);
  border-color:var(--color-accent-deep);
  color:#fff;
  box-shadow:0 10px 20px rgba(224,86,20,.3);
}
.arrow-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--color-primary);
  font-size:.92rem;
  font-weight:600;
  transition:color .2s ease,gap .2s ease;
}
.arrow-link:hover{color:var(--color-accent);gap:10px}
.arrow-link .arrow-svg{width:15px;height:15px}

/* roulang page: category1 */
:root{
  --bg-light:#F5F7F9; --bg-dark:#101B2A; --surface:#FFFFFF; --surface-deep:#ECEFF1;
  --primary:#16324F; --accent:#FB6B22; --accent-soft:#FDE8DA; --online:#12A594;
  --text-main:#182433; --text-secondary:#5C6773; --border:#D9DEE3;
  --ratio-card:14px; --ratio-lg:18px; --shadow-1:0 4px 14px rgba(16,27,42,.05);
  --shadow-2:0 18px 38px rgba(16,27,42,.1); --container-max:1240px; --radius-full:999px;
}
html,body{scroll-behavior:smooth;}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;background:var(--bg-light);color:var(--text-main);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;}
*{box-sizing:border-box;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
img{max-width:100%;height:auto;display:block;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid rgba(251,107,34,.45);outline-offset:3px;border-radius:6px;}
.container{max-width:var(--container-max);padding-left:20px;padding-right:20px;}
/* shared site header */
.site-header{position:sticky;top:0;z-index:1080;background:rgba(255,255,255,.92);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,224,229,.85);}
.header-inner{padding-top:12px;padding-bottom:8px;}
.header-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:10px;}
.brand-logo{display:inline-flex;align-items:center;gap:6px;font-weight:800;color:var(--primary);font-size:1.32rem;letter-spacing:.02em;}
.brand-logo .brand-mark{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;background:var(--primary);color:#fff;border-radius:12px 6px 12px 6px;font-size:1.2rem;font-weight:800;}
.brand-logo .brand-cn{color:var(--primary);}
.brand-logo .brand-lat{font-family:"Inter","Bahnschrift",system-ui-apple,sans-serif;font-weight:600;color:var(--accent);letter-spacing:.02em;text-transform:lowercase;}
.header-utils{display:flex;align-items:center;gap:12px;}
.header-cta{background:var(--accent);color:#fff;border:none;height:42px;line-height:40px;padding:0 22px;border-radius:8px;font-weight:600;transition:all .22s;box-shadow:0 6px 14px rgba(251,107,34,.22);}
.header-cta:hover{background:#E4550F;color:#fff;transform:translateY(-1px);box-shadow:0 10px 20px rgba(224,86,20,.28);}
.header-cta:active{transform:translateY(1px);box-shadow:none;}
.nav-panel{display:flex;align-items:center;gap:10px;padding:4px;background:#EBEEF2;border-radius:var(--radius-full);width:fit-content;max-width:100%;overflow-x:auto;scrollbar-width:none;}
.nav-panel::-webkit-scrollbar{display:none;}
.nav-chip{white-space:nowrap;padding:8px 20px;border-radius:var(--radius-full);color:var(--text-secondary);font-size:.95rem;font-weight:500;background:transparent;border:1px solid transparent;transition:all .2s;}
.nav-chip:hover{background:var(--surface);color:var(--primary);box-shadow:0 2px 10px rgba(0,0,0,.06);}
.nav-chip.active{background:var(--accent);color:#fff;box-shadow:0 5px 14px rgba(251,107,34,.28);}
/* hero banner */
.category-hero{background-color:var(--bg-dark);color:#fff;padding:68px 0 40px;position:relative;overflow:hidden;}
.category-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,27,42,.96) 0%,rgba(16,27,42,.82) 40%,rgba(22,50,63,.62) 100%),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;}
.hero-ribbon{position:relative;z-index:2;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-full);padding:4px 16px;font-size:.88rem;color:#d9e6f2;}
.hero-eyebrow i{width:8px;height:8px;background:var(--online);border-radius:50%;display:inline-block;box-shadow:0 0 0 4px rgba(18,165,148,.2);}
.category-hero h1{font-size:2.7rem;font-weight:800;margin:22px 0 14px;line-height:1.22;}
.category-hero .lead{font-size:1.05rem;max-width:760px;color:#CBD5E0;}
.hero-meta-line{margin-top:28px;display:flex;flex-wrap:wrap;gap:16px;}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);border-radius:8px;padding:8px 16px;font-size:.92rem;}
.hero-tag i{width:7px;height:7px;background:var(--accent);border-radius:50%;}
/* page sections */
.section-block{padding:72px 0;}
.section-dark{background:var(--bg-dark);color:#fff;}
.section-soft{background:#EEF1F4;}
.section-white{background:#fff;}
.sec-head{margin-bottom:38px;}
.sec-head h2{color:var(--primary);font-weight:800;font-size:2rem;margin-bottom:10px;}
.section-dark .sec-head h2{color:#fff;}
.sec-head p{color:var(--text-secondary);max-width:700px;margin-bottom:0;}
.section-dark .sec-head p{color:#9EB1C5;}
.sec-head-cn{display:inline-block;background:var(--accent-soft);color:var(--primary);font-size:.82rem;font-weight:600;padding:4px 14px;border-radius:var(--radius-full);margin-bottom:13px;}
/* index aside layout */
.index-wrap{display:grid;grid-template-columns:290px 1fr;gap:34px;align-items:start;}
.toc-box{background:#fff;border:1px solid var(--border);border-radius:16px;padding:22px;box-shadow:var(--shadow-1);position:sticky;top:120px;}
.toc-box-title{font-size:1.05rem;font-weight:700;color:var(--primary);padding-bottom:10px;border-bottom:1px solid var(--border);margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.toc-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px;}
.toc-list li a{display:block;padding:9px 12px;border-radius:8px;color:var(--text-secondary);font-size:.93rem;transition:all .2s;}
.toc-list li a:hover{background:var(--accent-soft);color:var(--primary);}
.toc-list li a i{color:var(--accent);font-style:normal;margin-right:6px;font-weight:700;}
.quick-entry{margin-top:24px;background:#F0F3F6;border-radius:12px;padding:16px;}
.quick-entry h4{font-size:1rem;font-weight:700;color:var(--primary);margin-bottom:6px;}
.quick-entry p{font-size:.9rem;color:var(--text-secondary);margin-bottom:12px;}
/* cards */
.card-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--ratio-card);overflow:hidden;transition:transform .25s,box-shadow .25s;box-shadow:var(--shadow-1);}
.card-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.card-fig{margin:0;overflow:hidden;background:linear-gradient(120deg,#16324F,#263B4F);}
.card-fig img{transition:transform .5s;}
.card-item:hover .card-fig img{transform:scale(1.04);}
.card-body{padding:22px 22px 18px;}
.card-body h3{font-size:1.14rem;font-weight:700;color:var(--text-main);line-height:1.5;margin-bottom:8px;}
.card-body p{font-size:.93rem;color:var(--text-secondary);line-height:1.75;margin-bottom:11px;}
.service-list{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.entry-type{display:grid;grid-template-columns:1fr;gap:22px;margin-top:32px;}
.feat-mini{display:flex;align-items:flex-start;gap:16px;padding:24px;border:1px solid #dfe4e8;border-radius:16px;background:#fff;position:relative;transition:all .2s;}
.feat-mini:hover{border-color:#94a8bd;box-shadow:var(--shadow-2);transform:translateY(-2px);}
.feat-mini-icon{width:48px;height:48px;flex-shrink:0;border-radius:14px;background:var(--accent-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:1.45rem;font-weight:700;}
.feat-mini .feat-txt h3{font-size:1.05rem;font-weight:700;color:var(--primary);margin-bottom:5px;}
.feat-mini .feat-txt p{font-size:.9rem;color:var(--text-secondary);margin-bottom:0;}
/* approach sections */
.stacked-steps{border-left:1px solid #dde3e8;padding-left:26px;margin-top:14px;display:flex;flex-direction:column;gap:24px;}
.step-card{position:relative;}
.step-card::before{content:"";position:absolute;left:-35px;top:0;width:18px;height:18px;border:4px solid #fff;background:var(--accent);border-radius:50%;box-shadow:0 0 0 1px var(--accent);}
.step-card h3{font-size:1.1rem;font-weight:700;color:var(--primary);margin-bottom:4px;}
.step-card p{color:var(--text-secondary);font-size:.95rem;margin-bottom:0;}
.zone-group{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.zone-block{border:1px solid var(--border);background:#fff;border-radius:16px;padding:24px;transition:all .2s;}
.zone-block:hover{box-shadow:var(--shadow-1);}
.zone-block .zone-label{display:inline-block;font-size:.8rem;color:var(--accent);background:var(--accent-soft);padding:2px 12px;border-radius:100px;font-weight:600;margin-bottom:14px;}
.zone-block h3{font-size:1.1rem;font-weight:700;color:var(--primary);}
.zone-block p{color:var(--text-secondary);font-size:.93rem;margin:8px 0 0;}
/* faq */
.faq-item{background:#fff;border:1px solid var(--border);border-radius:14px;padding:0;margin-bottom:14px;overflow:hidden;}
.faq-question{width:100%;text-align:left;background:none;border:0;padding:18px 22px;font-weight:600;font-size:1rem;color:var(--primary);display:flex;justify-content:space-between;align-items:center;gap:12px;cursor:pointer;transition:background .2s;}
.faq-question:hover{background:#FAF3EE;}
.faq-icon{color:var(--accent);font-size:1.4rem;line-height:1;font-weight:300;transition:transform .25s;}
.faq-question[aria-expanded="true"] .faq-icon{transform:rotate(45deg);}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-answer-inner{padding:0 24px 20px;color:var(--text-secondary);font-size:.95rem;border-left:3px solid var(--accent-soft);margin-left:22px;margin-right:22px;}
/* cta */
.cta-band{background:var(--primary);border-radius:18px;overflow:hidden;position:relative;padding:50px 44px;color:#fff;text-align:center;}
.cta-band::before{content:"开云kaiyun";position:absolute;right:-20px;bottom:-30px;font-size:7rem;font-weight:800;opacity:.06;color:#fff;pointer-events:none;}
.cta-band h2{color:#fff;font-size:2rem;font-weight:800;}
.cta-band p{color:#C9D4E0;max-width:620px;margin:12px auto 26px;}
.cta-band .btn-lg-custom{height:50px;padding:0 36px;}
.btn-brand-accent{background:var(--accent);color:#fff;border:none;height:48px;line-height:46px;padding:0 30px;border-radius:8px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;transition:all .22s;box-shadow:0 10px 24px rgba(255,255,255,.08);}
.btn-brand-accent:hover{background:#E4550F;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.16);}
.btn-brand-ghost{background:transparent;border:1px solid rgba(255,255,255,.8);color:#fff;height:48px;line-height:46px;padding:0 30px;border-radius:8px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;transition:all .22s;}
.btn-brand-ghost:hover{background:#fff;color:var(--primary);border-color:#fff;}
/* footer */
.site-footer{background:#0C1421;color:#A2AFBB;padding-top:64px;position:relative;overflow:hidden;}
.footer-top{padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.08);}
.footer-brand-txt{font-size:1.58rem;font-weight:800;color:#fff;display:block;margin-bottom:10px;}
.footer-brand-txt span{color:var(--accent);font-weight:600;}
.footer-intro{font-size:.93rem;line-height:1.85;max-width:360px;color:#8D9AA8;}
.footer-title{font-size:17px;color:#EDF1F6;font-weight:600;margin-bottom:16px;margin-top:8px;}
.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:#A2AFBB;font-size:.93rem;transition:color .2s;}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.07);padding:18px 0;color:#7B8896;font-size:.9rem;}
.footer-bottom a{color:#A2AFBB;}
.footer-bottom a:hover{color:var(--accent);}
.footer-word{font-size:5.2rem;font-weight:800;line-height:1;text-align:center;color:rgba(255,255,255,.05);margin-top:14px;white-space:nowrap;user-select:none;}
/* responsive */
@media (max-width:991px){
  .category-hero h1{font-size:2.2rem;}
  .index-wrap{grid-template-columns:1fr;}
  .toc-box{position:static;width:100%;}
  .service-list,.zone-group{grid-template-columns:1fr;}
  .entry-type{grid-template-columns:1fr;}
  .header-row{flex-wrap:wrap;}
  .header-utils{width:100%;justify-content:flex-end;}
}
@media (max-width:767px){
  .category-hero{padding:50px 0 32px;}
  .category-hero h1{font-size:1.9rem;}
  .section-block{padding:56px 0;}
  .nav-panel{width:100%;}
  .nav-chip{flex:1 0 auto;text-align:center;padding:8px 12px;font-size:.9rem;}
  .footer-word{font-size:3.2rem;}
  .cta-band{padding:36px 22px;}
}
@media (max-width:575px){
  .category-hero h1{font-size:1.62rem;}
  .brand-logo{font-size:1.1rem;}
  .brand-logo .brand-mark{width:34px;height:34px;font-size:1rem;border-radius:10px 5px 10px 5px;}
  .header-cta{padding:0 14px;font-size:.9rem;height:38px;line-height:36px;}
  .sec-head h2{font-size:1.65rem;}
  .card-body{padding:18px 16px 14px;}
  .hero-meta-line{gap:10px;}
}

/* roulang page: article */
:root {
        --color-bg-light: #F6F7F9;
        --color-bg-dark: #101B2A;
        --color-surface: #FFFFFF;
        --color-surface-deep: #ECEFF3;
        --color-primary: #16324F;
        --color-accent: #FB6B22;
        --color-accent-soft: #FDE6D8;
        --color-online: #12A594;
        --color-text-main: #182433;
        --color-text-secondary: #57626F;
        --color-border: #DCE0E5;
        --color-visited: #5B4C96;
        --color-footer: #0B1420;
        --radius-lg: 18px;
        --radius-md: 14px;
        --radius-sm: 8px;
        --shadow-card: 0 4px 14px rgba(16, 27, 42, 0.04);
        --shadow-hover: 0 18px 36px rgba(16, 27, 42, 0.12);
        --body-font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        font-family: var(--body-font);
        color: var(--color-text-main);
        background: var(--color-bg-light);
        font-size: 16px;
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
    }

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

    a {
        color: inherit;
        text-decoration: none;
        transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
    }

    a:visited {
        color: inherit;
    }

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

    button,
    input {
        font-family: inherit;
    }

    .container {
        max-width: 1240px;
        padding-left: 18px;
        padding-right: 18px;
    }

    :focus-visible {
        outline: 3px solid rgba(251, 107, 34, .45);
        outline-offset: 2px;
    }

    ::selection {
        background: rgba(251, 107, 34, .22);
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: .45rem;
        height: 48px;
        padding: 0 28px;
        border-radius: var(--radius-sm);
        font-weight: 600;
        font-size: .95rem;
        line-height: 1;
        border: 1px solid transparent;
        cursor: pointer;
        transition: background .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease;
    }

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

    .btn-accent:hover {
        background: #e4550f;
        border-color: #e4550f;
        color: #fff;
        box-shadow: 0 8px 18px rgba(224, 86, 20, .3);
        transform: translateY(-1px);
    }

    .btn-accent:active {
        transform: translateY(1px);
        box-shadow: 0 4px 10px rgba(224, 86, 20, .25);
    }

    .btn-ghost {
        background: transparent;
        border-color: rgba(22, 50, 79, .35);
        color: var(--color-primary);
    }

    .btn-ghost:hover {
        border-color: var(--color-accent);
        color: var(--color-accent);
        background: var(--color-accent-soft);
    }

    .btn-light-ghost {
        background: rgba(255, 255, 255, .08);
        border-color: rgba(255, 255, 255, .6);
        color: #fff;
    }

    .btn-light-ghost:hover {
        background: rgba(255, 255, 255, .14);
        border-color: #fff;
        color: #fff;
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 1050;
        background: rgba(255, 255, 255, .96);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--color-border);
        transition: box-shadow .25s ease;
    }

    .site-header:hover {
        box-shadow: 0 6px 22px rgba(16, 27, 42, .06);
    }

    .header-inner {
        padding-top: 12px;
        padding-bottom: 10px;
    }

    .header-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 18px;
    }

    .brand-logo {
        display: inline-flex;
        align-items: center;
        gap: 9px;
        line-height: 1.1;
        font-weight: 800;
        color: var(--color-primary);
        letter-spacing: .01em;
    }

    .brand-mark {
        width: 42px;
        height: 42px;
        border-radius: 12px;
        background: var(--color-accent);
        color: #fff;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 1.25rem;
        font-weight: 900;
        box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .22);
    }

    .brand-cn {
        font-size: 1.12rem;
        font-weight: 900;
    }

    .brand-lat {
        font-size: 1.16rem;
        font-weight: 700;
        color: var(--color-accent);
        letter-spacing: .05em;
    }

    .header-utils {
        display: flex;
        align-items: center;
        gap: 14px;
    }

    .header-cta {
        display: inline-flex;
        align-items: center;
        gap: .4rem;
        height: 38px;
        padding: 0 18px;
        border-radius: 999px;
        background: var(--color-accent);
        color: #fff;
        font-size: .88rem;
        font-weight: 600;
        transition: background .2s ease, box-shadow .2s ease, transform .2s ease;
    }

    .header-cta:hover {
        background: #e4550f;
        color: #fff;
        box-shadow: 0 8px 18px rgba(224, 86, 20, .26);
        transform: translateY(-1px);
    }

    .nav-panel {
        display: flex;
        align-items: center;
        gap: 6px;
        margin-top: 12px;
        padding: 4px;
        width: max-content;
        max-width: 100%;
        background: var(--color-bg-light);
        border: 1px solid var(--color-border);
        border-radius: 999px;
        overflow-x: auto;
        scrollbar-width: none;
    }

    .nav-panel::-webkit-scrollbar {
        display: none;
    }

    .nav-chip {
        display: inline-flex;
        align-items: center;
        white-space: nowrap;
        height: 36px;
        padding: 0 18px;
        border-radius: 999px;
        color: var(--color-text-secondary);
        font-size: .9rem;
        font-weight: 600;
        background: transparent;
    }

    .nav-chip:hover {
        background: var(--color-surface-deep);
        color: var(--color-primary);
    }

    .nav-chip.active {
        background: var(--color-accent);
        color: #fff;
        box-shadow: 0 5px 14px rgba(224, 86, 20, .2);
    }

    .article-main-wrap {
        background: var(--color-bg-light);
    }

    .article-banner {
        background-image: linear-gradient(115deg, rgba(11, 20, 32, .96), rgba(22, 50, 79, .82)), url('/assets/images/backpic/back-1.webp');
        background-color: var(--color-bg-dark);
        background-position: center;
        background-size: cover;
        padding: 80px 0 130px;
        color: #fff;
    }

    .breadcrumb-list {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        margin: 0 0 30px;
        padding: 0;
        font-size: .9rem;
        color: rgba(255, 255, 255, .68);
    }

    .breadcrumb-list a {
        color: rgba(255, 255, 255, .72);
    }

    .breadcrumb-list a:hover {
        color: #fff;
    }

    .breadcrumb-list li {
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }

    .breadcrumb-list li + li::before {
        content: "/";
        color: rgba(255, 255, 255, .4);
    }

    .breadcrumb-list .crumb-current {
        color: rgba(255, 255, 255, .92);
        max-width: 420px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .article-headline {
        font-size: clamp(2rem, 3.2vw, 3.05rem);
        line-height: 1.25;
        font-weight: 900;
        color: #fff;
        letter-spacing: .01em;
        margin: 0 0 24px;
        max-width: 960px;
    }

    .article-meta {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px 24px;
        font-size: .88rem;
        color: rgba(255, 255, 255, .78);
    }

    .meta-chip {
        display: inline-flex;
        align-items: center;
        gap: .45rem;
        background: rgba(255, 255, 255, .1);
        border: 1px solid rgba(255, 255, 255, .14);
        border-radius: 999px;
        padding: 5px 14px;
        font-weight: 500;
        color: rgba(255, 255, 255, .85);
    }

    .meta-chip i {
        color: rgba(255, 255, 255, .6);
        font-size: .82rem;
    }

    .article-body-wrap {
        position: relative;
        z-index: 2;
        margin-top: -80px;
        padding-bottom: 20px;
    }

    .article-panel {
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: 22px;
        padding: 60px 64px 48px;
        box-shadow: var(--shadow-card);
    }

    .article-content {
        font-size: 1.02rem;
        line-height: 1.85;
        color: #2a3440;
        word-break: break-word;
    }

    .article-content > *:first-child {
        margin-top: 0;
    }

    .article-content p {
        margin: 0 0 1.35em;
    }

    .article-content h2 {
        font-size: 1.75rem;
        font-weight: 800;
        color: var(--color-primary);
        line-height: 1.4;
        margin: 44px 0 18px;
    }

    .article-content h3 {
        font-size: 1.35rem;
        font-weight: 700;
        color: var(--color-primary);
        margin: 36px 0 14px;
        line-height: 1.5;
    }

    .article-content h4 {
        font-size: 1.12rem;
        font-weight: 700;
        color: var(--color-primary);
        margin: 28px 0 10px;
    }

    .article-content ul,
    .article-content ol {
        margin: 0 0 1.5em;
        padding-left: 1.35em;
        list-style: disc;
    }

    .article-content ol {
        list-style: decimal;
    }

    .article-content li {
        margin-bottom: .45em;
    }

    .article-content blockquote {
        margin: 2rem 0;
        padding: 1px 18px 1px 22px;
        border-left: 4px solid var(--color-accent);
        background: var(--color-bg-light);
        border-radius: 0 12px 12px 0;
        color: var(--color-text-secondary);
    }

    .article-content img {
        border-radius: 16px;
        margin: 30px 0;
    }

    .article-content a {
        color: var(--color-accent);
        text-decoration: underline;
        text-underline-offset: 3px;
    }

    .article-content a:hover {
        color: #d84c0e;
    }

    .article-tags {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 46px;
        padding-top: 24px;
        border-top: 1px solid var(--color-border);
    }

    .article-tags-label {
        font-weight: 800;
        font-size: .9rem;
        color: var(--color-primary);
        margin-right: 4px;
    }

    .tag-chip {
        display: inline-flex;
        align-items: center;
        height: 30px;
        padding: 0 14px;
        border-radius: 999px;
        font-size: .82rem;
        font-weight: 500;
        background: var(--color-surface-deep);
        color: var(--color-text-secondary);
    }

    .article-missing {
        padding: 54px 20px;
        text-align: center;
        border: 1px dashed var(--color-text-secondary);
        border-radius: 16px;
        background: var(--color-bg-light);
    }

    .article-missing i {
        font-size: 2.8rem;
        color: var(--color-accent);
        display: block;
        margin-bottom: 18px;
    }

    .article-missing h2 {
        font-size: 1.7rem;
        font-weight: 800;
        color: var(--color-primary);
        margin-bottom: 10px;
    }

    .article-missing p {
        color: var(--color-text-secondary);
        margin-bottom: 24px;
    }

    .article-switch-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
        margin-top: 42px;
    }

    .related-area {
        padding: 72px 0 20px;
    }

    .section-heading {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 18px;
        flex-wrap: wrap;
        margin-bottom: 36px;
    }

    .section-heading h2 {
        margin: 0;
        font-size: 2rem;
        font-weight: 900;
        color: var(--color-primary);
        letter-spacing: .01em;
    }

    .section-heading p {
        margin: 6px 0 0;
        color: var(--color-text-secondary);
    }

    .related-card {
        display: block;
        height: 100%;
        background: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-card);
        transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
    }

    .related-card:hover {
        box-shadow: var(--shadow-hover);
        transform: translateY(-4px);
        border-color: rgba(251, 107, 34, .25);
    }

    .related-thumb {
        width: 100%;
        height: 190px;
        object-fit: cover;
    }

    .related-body {
        padding: 24px;
    }

    .related-label {
        display: inline-flex;
        align-items: center;
        height: 26px;
        padding: 0 12px;
        margin-bottom: 14px;
        border-radius: 999px;
        background: var(--color-accent-soft);
        color: #b34909;
        font-size: .8rem;
        font-weight: 700;
    }

    .related-body h3 {
        font-size: 1.22rem;
        font-weight: 800;
        color: var(--color-primary);
        margin: 0 0 12px;
        line-height: 1.45;
    }

    .related-body p {
        font-size: .92rem;
        color: var(--color-text-secondary);
        line-height: 1.75;
        margin: 0 0 20px;
    }

    .text-link {
        display: inline-flex;
        align-items: center;
        gap: .35rem;
        font-size: .9rem;
        font-weight: 700;
        color: var(--color-accent);
    }

    .text-link i {
        font-size: .8rem;
        transition: transform .2s ease;
    }

    .related-card:hover .text-link i {
        transform: translateX(3px);
    }

    .article-cta-wrap {
        padding: 64px 0 86px;
    }

    .article-cta-box {
        background: linear-gradient(135deg, #0B1420, #16324F);
        border-radius: 24px;
        padding: 62px 30px;
        text-align: center;
        color: #fff;
        position: relative;
        overflow: hidden;
    }

    .article-cta-box::after {
        content: "开云kaiyun在线官网";
        position: absolute;
        right: -12px;
        bottom: -40px;
        font-size: clamp(5rem, 12vw, 11rem);
        font-weight: 900;
        color: rgba(255, 255, 255, .035);
        line-height: 1;
        white-space: nowrap;
        pointer-events: none;
        user-select: none;
    }

    .article-cta-box h2 {
        position: relative;
        z-index: 1;
        font-size: clamp(1.7rem, 2.6vw, 2.4rem);
        font-weight: 900;
        margin: 0 0 12px;
    }

    .article-cta-box p {
        position: relative;
        z-index: 1;
        color: rgba(255, 255, 255, .75);
        margin: 0 auto 32px;
        max-width: 680px;
    }

    .article-cta-box .btn + .btn {
        margin-left: 10px;
    }

    .site-footer {
        background: var(--color-footer);
        color: rgba(255, 255, 255, .65);
        padding-top: 66px;
        border-top: 3px solid rgba(251, 107, 34, .6);
    }

    .footer-brand-txt {
        display: inline-flex;
        align-items: baseline;
        gap: 4px;
        font-size: 1.55rem;
        font-weight: 900;
        color: #fff;
        margin-bottom: 16px;
        line-height: 1.3;
    }

    .footer-brand-txt span {
        color: var(--color-accent);
        font-weight: 800;
    }

    .footer-intro {
        color: rgba(255, 255, 255, .52);
        font-size: .92rem;
        line-height: 1.8;
        max-width: 340px;
        margin: 0;
    }

    .footer-title {
        color: rgba(255, 255, 255, .94);
        font-size: 1.05rem;
        font-weight: 800;
        margin-bottom: 20px;
        letter-spacing: .02em;
    }

    .footer-links li {
        margin-bottom: 10px;
    }

    .footer-links a {
        color: rgba(255, 255, 255, .62);
        font-size: .9rem;
    }

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

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, .08);
        padding: 22px 0;
        margin-top: 52px;
        font-size: .9rem;
        color: rgba(255, 255, 255, .46);
    }

    .footer-word {
        margin-top: 40px;
        text-align: center;
        font-size: clamp(3rem, 10vw, 8.5rem);
        font-weight: 900;
        color: rgba(255, 255, 255, .025);
        line-height: .9;
        letter-spacing: .12em;
        pointer-events: none;
        user-select: none;
        white-space: nowrap;
    }

    @media (min-width: 768px) {
        .article-panel {
            padding: 58px 64px 48px;
        }
    }

    @media (max-width: 767.98px) {
        .header-inner {
            padding-top: 10px;
        }
        .brand-logo {
            gap: 6px;
        }
        .brand-logo .brand-cn,
        .brand-logo .brand-lat {
            font-size: 1rem;
        }
        .brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            font-size: 1.1rem;
        }
        .header-cta {
            padding: 0 12px;
            height: 34px;
            font-size: .8rem;
        }
        .article-banner {
            padding: 60px 0 116px;
        }
        .article-panel {
            padding: 26px 22px 30px;
        }
        .article-body-wrap {
            margin-top: -68px;
        }
        .article-switch-row {
            grid-template-columns: 1fr;
        }
        .article-cta-box {
            padding: 46px 20px;
        }
        .footer-word {
            letter-spacing: .06em;
        }
    }

    @media (max-width: 575.98px) {
        body {
            font-size: 15px;
        }
        .header-row {
            gap: 8px;
        }
        .header-utils .header-cta {
            display: none;
        }
        .nav-panel {
            margin-top: 9px;
            padding: 3px;
        }
        .nav-chip {
            height: 34px;
            padding: 0 13px;
            font-size: .85rem;
        }
        .article-headline {
            font-size: 1.72rem;
            margin-bottom: 20px;
        }
        .article-meta {
            gap: 8px 10px;
        }
        .meta-chip {
            padding: 4px 10px;
            font-size: .78rem;
        }
        .article-content {
            font-size: .98rem;
            line-height: 1.82;
        }
        .article-content h2 {
            font-size: 1.5rem;
            margin-top: 36px;
        }
        .article-content h3 {
            font-size: 1.18rem;
        }
        .section-heading h2 {
            font-size: 1.5rem;
        }
        .article-cta-box .btn {
            margin: 6px 0 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
    }

/* roulang page: category2 */
:root {
  --color-bg-light: #F6F7F9;
  --color-bg-dark: #101B2A;
  --color-surface: #FFFFFF;
  --color-surface-deep: #ECEFF3;
  --color-primary: #16324F;
  --color-accent: #FB6B22;
  --color-accent-soft: #FDE6D8;
  --color-online: #12A594;
  --color-text-main: #182433;
  --color-text-secondary: #57626F;
  --color-border: #DCE0E5;
  --shadow-1: 0 4px 14px rgba(16,27,42,0.04);
  --shadow-2: 0 18px 36px rgba(16,27,42,0.10);
  --radius: 14px;
  --radius-lg: 18px;
  --radius-pill: 999px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #f3f5f7;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--color-text-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button, input { font-family: inherit; }
h1,h2,h3,h4,h5,h6 { line-height: 1.3; color: var(--color-primary); font-weight: 800; }
:focus-visible { outline: 3px solid rgba(251,107,34,.45); outline-offset: 2px; border-radius: 6px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1090;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(220,224,229,.85);
  transition: background .35s, box-shadow .35s;
}
.site-header.is-sticky {
  background: rgba(255,255,255,.97);
  box-shadow: 0 10px 32px rgba(16,27,42,.08);
}
.header-inner { padding: 14px 0 10px; }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand-logo { display: inline-flex; align-items: center; gap: 8px; }
.brand-mark {
  width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center;
  background: var(--color-accent); color: #fff; font-weight: 800; font-size: 1.3rem;
  border-radius: 13px; box-shadow: 0 6px 14px rgba(251,107,34,.22);
}
.brand-cn { font-size: 1.25rem; font-weight: 800; letter-spacing: .01em; color: var(--color-primary); }
.brand-lat {
  font-family: Inter, Bahnschrift, ui-sans-serif, system-ui, sans-serif;
  font-size: 1.25rem; font-weight: 700; color: var(--color-accent); letter-spacing: -.02em;
}
.header-utils { display: flex; align-items: center; gap: 12px; }
.header-cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--color-primary); color: #fff; border-radius: 9px;
  padding: 10px 20px; font-size: .95rem; font-weight: 600;
  border: 0; transition: background .2s, transform .2s, box-shadow .2s;
}
.header-cta:hover { background: #0F253B; color: #fff; box-shadow: 0 10px 22px rgba(16,27,42,.18); transform: translateY(-1px); }
.header-cta:active { transform: translateY(0); }

.nav-panel {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-top: 14px; padding: 5px; background: #EDF1F4;
  border-radius: var(--radius-pill);
}
.nav-chip {
  display: inline-flex; align-items: center; padding: 8px 20px;
  border-radius: var(--radius-pill); background: transparent;
  font-size: .95rem; font-weight: 700; color: var(--color-text-secondary);
  transition: background .2s, color .2s, box-shadow .2s;
}
.nav-chip i { font-size: .8rem; margin-right: 5px; }
.nav-chip:hover { background: #E1E7EC; color: var(--color-primary); }
.nav-chip.active { background: var(--color-accent); color: #fff; box-shadow: 0 6px 16px rgba(251,107,34,.24); }

main { min-height: 70vh; }
.container { max-width: 1240px; padding-left: 24px; padding-right: 24px; }

.category-hero-wrap { padding-top: 38px; }
.category-hero {
  position: relative;
  overflow: hidden;
  border-radius: 26px;
  color: #fff;
  padding: 52px 56px 40px;
  background: linear-gradient(112deg, rgba(13,24,39,.94) 0%, rgba(16,27,42,.82) 60%, rgba(16,27,42,.62) 100%), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  box-shadow: 0 24px 64px rgba(16,27,42,.20);
}
.category-hero::before {
  content: ''; position: absolute; top: 0; left: 0; width: 160px; height: 4px;
  background: var(--color-accent); border-radius: 0 0 8px 0;
}
.category-hero::after {
  content: ''; position: absolute; right: 26px; top: 26px; left: auto;
  width: 110px; height: 110px; border: 1px solid rgba(255,255,255,.16);
  border-radius: 50%; pointer-events: none;
}
.cat-breadcrumb { position: relative; z-index: 2; display: flex; align-items: center; gap: 8px; font-size: .85rem; color: rgba(255,255,255,.7); margin-bottom: 28px; }
.cat-breadcrumb a { color: rgba(255,255,255,.85); }
.cat-breadcrumb a:hover { color: var(--color-accent); }
.cat-breadcrumb i { font-size: .7rem; color: rgba(255,255,255,.4); }

.hero-row { position: relative; z-index: 2; align-items: center; }
.category-hero h1 { color: #fff; font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; letter-spacing: .02em; margin-bottom: 18px; }
.category-hero h1 span { color: var(--color-accent); }
.hero-desc { max-width: 640px; font-size: 1.05rem; color: rgba(255,255,255,.86); margin-bottom: 30px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn-main {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--color-accent); color: #fff; border: 0; height: 48px; padding: 0 30px;
  border-radius: 9px; font-size: .98rem; font-weight: 700;
  transition: background .2s, box-shadow .2s, transform .2s;
}
.btn-main:hover { background: #E4550F; color: #fff; box-shadow: 0 10px 24px rgba(224,86,20,.32); transform: translateY(-2px); }
.btn-line-light {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: rgba(255,255,255,.06); color: #fff; border: 1px solid rgba(255,255,255,.35);
  height: 48px; padding: 0 30px; border-radius: 9px; font-size: .98rem; font-weight: 600;
  transition: background .2s, border-color .2s;
}
.btn-line-light:hover { background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.7); color:#fff; }

.hero-visual-card {
  position: relative; z-index: 2; border-radius: 20px; overflow: hidden;
  background: #16263B; box-shadow: 0 24px 50px rgba(0,0,0,.26);
}
.hero-visual-card img { width: 100%; height: 260px; object-fit: cover; }
.hero-visual-caption {
  padding: 14px 18px; background: rgba(13,24,39,.92); color: #cfd9e3;
  font-size: .86rem; line-height: 1.5;
}
.hero-visual-caption b { color: #fff; font-weight: 700; }
.hero-visual-caption i { color: var(--color-accent); font-style: normal; }

.hero-metrics {
  display: grid; grid-template-columns: repeat(4, 1fr); position: relative; z-index: 2;
  gap: 20px; margin-top: 46px; padding-top: 30px;
  border-top: 1px solid rgba(255,255,255,.18);
}
.metric-box { padding: 8px 20px; border-left: 2px solid var(--color-accent); }
.metric-value { color: #fff; font-weight: 800; font-size: 1.36rem; display: block; letter-spacing: .02em; }
.metric-label { color: rgba(255,255,255,.7); font-size: .82rem; }

.section-block { padding: 88px 0 72px; }
.section-block.soft-bg { background: #EEF1F5; }
.section-block.dark-band { background: linear-gradient(120deg,#121D2C,#0B1623); color: rgba(255,255,255,.8); }
.section-block.dark-band h2 { color: #fff; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; margin-bottom: 44px; flex-wrap: wrap; }
.section-label {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--color-accent-soft); color: #E4550F;
  padding: 4px 13px; border-radius: 999px; font-size: .82rem; font-weight: 700;
  margin-bottom: 10px;
}
.section-label i { font-size: .75rem; }
.section-title { font-size: clamp(1.6rem, 3vw, 2.12rem); font-weight: 800; margin: 0; line-height: 1.3; }
.section-title + .section-sub { margin-top: 8px; }
.section-sub { color: var(--color-text-secondary); font-size: .95rem; max-width: 700px; margin-bottom: 0; }
.deco-link {
  display: inline-flex; align-items: center; gap: 7px; flex-shrink: 0;
  background: var(--color-surface); border: 1px solid var(--color-border);
  padding: 10px 18px; border-radius: 999px; color: var(--color-primary);
  font-size: .9rem; font-weight: 700;
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.deco-link:hover { color: var(--color-accent); border-color: var(--color-accent); box-shadow: var(--shadow-1); transform: translateY(-2px); }

.direction-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.direction-card {
  position: relative; background: var(--color-surface);
  border: 1px solid var(--color-border); border-radius: 18px; overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s;
}
.direction-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); border-color: rgba(251,107,34,.4); }
.direction-card-img { height: 108px; overflow: hidden; }
.direction-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.direction-card:hover .direction-card-img img { transform: scale(1.05); }
.direction-card-body { padding: 22px 22px 24px; }
.direction-card-body .dir-icon {
  width: 34px; height: 34px; display: flex; align-items: center; justify-content: center;
  background: var(--color-accent-soft); color: var(--color-accent); border-radius: 10px;
  margin-bottom: 14px;
}
.direction-card-body h3 { font-size: 1.08rem; margin-bottom: 8px; font-weight: 800; }
.direction-card-body p { margin: 0; color: var(--color-text-secondary); font-size: .9rem; line-height: 1.75; }

.timeline-section { position: relative; }
.timeline-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  padding: 50px clamp(20px, 5vw, 64px);
  box-shadow: var(--shadow-1);
}
.timeline-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 40px; flex-wrap: wrap; }
.timeline-head h2 { margin: 0; font-size: 1.55rem; }
.timeline-head p { margin: 0; color: var(--color-text-secondary); }
.timeline-row {
  display: grid; grid-template-columns: 118px 38px 1fr;
  gap: 0; position: relative; padding-bottom: 34px;
}
.timeline-row:last-child { padding-bottom: 0; }
.timeline-date {
  text-align: right; padding-top: 10px;
}
.timeline-date .tl-month { display: block; font-size: 1.3rem; font-weight: 800; color: var(--color-primary); line-height: 1.2; }
.timeline-date .tl-year { display: block; font-size: .76rem; color: var(--color-text-secondary); letter-spacing: .06em; }
.timeline-point { display: flex; justify-content: center; align-items: flex-start; padding-top: 16px; }
.timeline-point .dot {
  width: 14px; height: 14px; background: var(--color-accent); border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(251,107,34,.16); position: relative; z-index: 2; flex-shrink: 0;
}
.timeline-row:not(:last-child) .timeline-point::after {
  content: ''; width: 2px; flex: 1; align-self: stretch;
  background: #E2E8ED; margin-top: 18px;
}
.timeline-card {
  background: var(--color-bg-light); border-radius: 16px;
  padding: 22px 26px; border: 1px solid var(--color-border);
  transition: box-shadow .25s, background .25s;
}
.timeline-card:hover { box-shadow: var(--shadow-1); background: #fff; }
.timeline-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.timeline-tags .tag {
  display: inline-flex; align-items: center; padding: 3px 11px;
  background: var(--color-accent-soft); color: #E4550F;
  border-radius: 999px; font-size: .78rem; font-weight: 600;
}
.timeline-tags .tag-blue { background: #E9EDF2; color: var(--color-primary); }
.timeline-tags .tag-green { background: #DDF6F1; color: #0A8D7D; }
.timeline-card h3 { font-size: 1.12rem; margin-bottom: 6px; font-weight: 800; }
.timeline-card p { margin: 0; color: var(--color-text-secondary); font-size: .93rem; line-height: 1.8; }

.binary-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 26px; }
.split-card {
  background: #fff; border: 1px solid var(--color-border); border-radius: 20px;
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .3s ease, box-shadow .3s ease;
}
.split-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-2); }
.split-card-top { position: relative; height: 180px; overflow: hidden; }
.split-card-top img { width: 100%; height: 100%; object-fit: cover; }
.split-card-top::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(10,18,27,.35), transparent); }
.split-top-badge {
  position: absolute; left: 18px; bottom: 14px; z-index: 2;
  display: inline-flex; align-items: center; gap: 7px; color: #fff;
  background: rgba(13,24,39,.72); padding: 6px 13px; border-radius: 999px;
  font-size: .82rem; font-weight: 700; backdrop-filter: blur(6px);
}
.split-card-body { padding: 26px 28px 30px; }
.split-card-body h3 { font-size: 1.25rem; margin-bottom: 10px; }
.split-card-body p { color: var(--color-text-secondary); font-size: .95rem; }
.split-list { list-style: none; padding: 0; margin: 18px 0 0; }
.split-list li { display: flex; gap: 10px; align-items: flex-start; position: relative; padding-left: 2px; margin-bottom: 12px; font-size: .93rem; color: var(--color-text-main); }
.split-list li i { color: var(--color-accent); margin-top: 5px; font-size: .82rem; }

.info-band-row { gap: 36px; align-items: center; }
.band-feature-list { display: flex; flex-direction: column; gap: 16px; }
.band-feature {
  display: flex; gap: 14px; background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  padding: 18px 20px; border-radius: 16px;
}
.band-feature .ft-icon { width: 42px; height: 42px; flex-shrink: 0; border-radius: 12px; background: rgba(251,107,34,.2); color: var(--color-accent); display: flex; align-items: center; justify-content: center; }
.band-feature h4 { color: #fff; font-size: 1.02rem; margin-bottom: 4px; }
.band-feature p { margin: 0; color: rgba(255,255,255,.65); font-size: .89rem; }
.news-guidance-text { color: rgba(255,255,255,.8); font-size: 1.02rem; line-height: 2; }
.news-guidance-text strong { color: #fff; }

.faq-section .container { max-width: 980px; }
.faq-accordion .accordion-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px !important;
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.faq-accordion .accordion-header { background: transparent; border: 0; }
.faq-accordion .accordion-button {
  display: flex; align-items: center; position: relative;
  width: 100%; border: 0;
  padding: 21px 52px 21px 24px;
  background: transparent;
  font-size: 1rem; font-weight: 800; color: var(--color-primary);
  text-align: left; transition: background .2s;
}
.faq-accordion .accordion-button::before {
  content: '+'; position: absolute; right: 22px; top: 50%;
  transform: translateY(-50%);
  font-size: 1.8rem; font-weight: 300; line-height: 1; color: var(--color-accent);
  transition: transform .3s ease, color .2s;
}
.faq-accordion .accordion-button:not(.collapsed)::before {
  transform: translateY(-50%) rotate(45deg);
  color: var(--color-primary);
}
.faq-accordion .accordion-button:not(.collapsed) { background: var(--color-accent-soft); color: var(--color-primary); box-shadow: none; }
.faq-accordion .accordion-button::after { display: none !important; }
.faq-accordion .accordion-button:focus { box-shadow: inset 0 0 0 1px rgba(251,107,34,.4); }
.faq-accordion .accordion-collapse .accordion-body { padding: 4px 26px 26px 24px; color: var(--color-text-secondary); font-size: .95rem; line-height: 1.9; border-top: 1px solid var(--color-border); }

.cta-block { padding: 76px 0 100px; }
.cta-inner {
  position: relative; overflow: hidden; border-radius: 28px; text-align: center;
  background: linear-gradient(115deg, #102437, #101B2A);
  padding: 70px 40px;
  color: #fff; box-shadow: 0 24px 70px rgba(16,27,42,.22);
}
.cta-inner::before {
  content: ''; position: absolute; width: 240px; height: 240px;
  border: 1px solid rgba(255,255,255,.12); border-radius: 50%;
  right: -70px; top: -70px;
}
.cta-inner::after {
  content: '资讯动态中心'; position: absolute; left: 0; right: 0; bottom: -28px;
  font-size: clamp(2.4rem, 8vw, 5rem); font-weight: 800; white-space: nowrap;
  color: rgba(255,255,255,.045); z-index: 1; letter-spacing: .04em;
}
.cta-inner h2 { color: #fff; font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; margin-bottom: 12px; position: relative; z-index: 2; }
.cta-inner p { max-width: 620px; margin: 0 auto 32px; color: rgba(255,255,255,.78); font-size: 1rem; line-height: 2; position: relative; z-index: 2; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; position: relative; z-index: 2; }
.btn-dark-primary {
  display: inline-flex; align-items: center; gap: 8px; height: 48px; padding: 0 30px;
  background: var(--color-accent); color: #fff; border-radius: 9px; font-weight: 700;
  transition: background .2s, transform .2s, box-shadow .2s;
}
.btn-dark-primary:hover { background: #E4550F; color:#fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(224,86,20,.3); }
.btn-white-outline {
  display: inline-flex; align-items: center; gap: 8px; height: 48px; padding: 0 30px;
  border: 1px solid rgba(255,255,255,.45); color: #fff; border-radius: 9px; font-weight: 600;
  background: rgba(255,255,255,.05); transition: background .2s;
}
.btn-white-outline:hover { background: rgba(255,255,255,.15); color: #fff; }

.site-footer {
  background: #0B1420; color: #AEBACA; padding: 82px 0 0; position: relative; overflow: hidden;
}
.footer-top { position: relative; z-index: 2; }
.footer-brand-txt { display: inline-block; color: #fff; font-size: 1.55rem; font-weight: 800; margin-bottom: 18px; }
.footer-brand-txt span { color: var(--color-accent); font-size: 1.25rem; }
.footer-intro { color: #9AA8BC; font-size: .9rem; max-width: 320px; line-height: 1.9; }
.footer-title { color: #fff; font-size: 1.02rem; font-weight: 800; margin-bottom: 18px; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { padding: 5px 0; }
.footer-links a { color: #95A4B8; font-size: .9rem; transition: color .2s, padding-left .2s; display: inline-block; }
.footer-links a:hover { color: var(--color-accent); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 56px; padding: 24px 0 26px; font-size: .85rem;
  color: #7E8C9F; position: relative; z-index: 2;
}
.footer-bottom a { color: #cfd9e5; }
.footer-word {
  position: absolute; bottom: -40px; left: 0; right: 0; z-index: 1;
  text-align: center; font-size: clamp(3rem, 12vw, 8rem); color: rgba(255,255,255,.035);
  font-weight: 800; letter-spacing: .03em; white-space: nowrap; user-select: none;
}

@media (max-width: 1200px) {
  .direction-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 991px) {
  .category-hero { padding: 42px 28px; }
  .hero-metrics { grid-template-columns: repeat(2, 1fr); }
  .binary-grid { grid-template-columns: 1fr; }
  .direction-grid { gap: 16px; }
  .timeline-row { grid-template-columns: 92px 34px 1fr; }
  .info-band-row { gap: 28px; }
  .section-block { padding: 72px 0 56px; }
}
@media (max-width: 767px) {
  .header-row { align-items: center; }
  .header-cta { padding: 9px 15px; font-size: .88rem; }
  .nav-panel { flex-direction: row; flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; padding-bottom: 6px; margin-top: 10px; }
  .nav-panel::-webkit-scrollbar { display: none; }
  .nav-chip { flex-shrink: 0; padding: 8px 15px; font-size: .9rem; }
  .category-hero { border-radius: 20px; padding: 32px 20px 28px; }
  .hero-actions .btn-main, .hero-actions .btn-line-light { width: 100%; }
  .hero-metrics { grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 34px; padding-top: 22px; }
  .metric-box { padding: 6px 12px; }
  .direction-grid { grid-template-columns: 1fr; }
  .timeline-head { align-items: flex-start; }
  .timeline-wrap { padding: 38px 18px; }
  .timeline-row { grid-template-columns: 72px 26px 1fr; padding-bottom: 26px; }
  .timeline-card { padding: 16px 14px; }
  .timeline-card h3 { font-size: .98rem; }
  .timeline-card p { font-size: .86rem; }
  .timeline-point .dot { width: 11px; height: 11px; }
  .split-card-body { padding: 22px 20px 24px; }
  .cta-inner { padding: 48px 20px; }
  .footer-bottom .text-md-end { text-align: left; margin-top: 8px; }
}
@media (max-width: 520px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .brand-cn { font-size: 1.05rem; }
  .brand-lat { font-size: 1.02rem; }
  .brand-mark { width: 36px; height: 36px; font-size: 1.05rem; }
  .section-block { padding: 56px 0 42px; }
  .section-head { margin-bottom: 30px; }
  .category-hero h1 { font-size: 1.75rem; }
  .hero-desc { font-size: .95rem; }
  .hero-metrics { grid-template-columns: 1fr 1fr; }
  .metric-value { font-size: 1.1rem; }
  .cta-actions .btn-dark-primary, .cta-actions .btn-white-outline { width: 100%; }
}