/* roulang page: index */
:root{
  --color-cloud:#f4f1ea;
  --color-surface:#ffffff;
  --color-ink:#1a2e35;
  --color-muted:#5d7178;
  --color-accent:#2a7f8b;
  --color-verdigris:#4f9d8d;
  --color-coral:#e76f51;
  --color-amber:#e5b454;
  --color-line:#dbd6cb;
  --radius-sm:6px;
  --radius-card:10px;
  --radius-pill:999px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
  --shadow-card:0 2px 8px rgba(26,46,53,.05);
  --shadow-hover:0 10px 28px rgba(42,127,139,.12);
  --content:1200px;
  --spacer:96px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--color-ink);
  background:var(--color-cloud);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--color-accent);text-decoration:none;transition:color .2s ease,border-color .2s}
a:hover{color:#186a76}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
input,textarea,select{font-family:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(42,127,139,.35)}
.wrap{max-width:var(--content);margin-inline:auto;padding-inline:20px}
.container{max-width:var(--content);margin-inline:auto;padding-inline:20px}
.row{max-width:var(--content);margin-inline:auto}
.skip-link{position:absolute;left:-999px;top:8px;z-index:1000;background:var(--color-accent);color:#fff;padding:10px 20px;border-radius:var(--radius-sm)}
.skip-link:focus{left:8px}
.section{padding-block:var(--spacer);position:relative}
@media(max-width:760px){.section{padding-block:64px}}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(244,241,234,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(219,214,203,.72);
}
.header-inner{
  display:flex;align-items:center;gap:18px;
  padding:12px 20px;
  max-width:var(--content);margin-inline:auto;
  position:relative;
}
.brand-lockup{
  display:inline-flex;align-items:center;gap:10px;
  flex-shrink:0;
  color:var(--color-ink);
}
.brand-lockup:hover{color:var(--color-ink)}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--color-accent);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-weight:700;font-size:18px;letter-spacing:.02em;white-space:nowrap;color:var(--color-ink)}
.brand-tag{font-size:10px;letter-spacing:.13em;color:var(--color-muted);text-transform:uppercase}
.site-nav{display:flex;align-items:center;gap:2px;flex-shrink:0}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 13px;border-radius:var(--radius-pill);
  font-weight:500;font-size:15px;color:var(--color-ink);
  transition:background .2s,color .2s;
}
.nav-link:hover{background:rgba(42,127,139,.08);color:var(--color-accent)}
.nav-link.is-active{background:rgba(42,127,139,.12);color:var(--color-accent);font-weight:600}
.header-search-form{
  display:flex;align-items:center;
  flex:1 1 auto;max-width:500px;
  height:45px;
  background:var(--color-surface);
  border:1px solid var(--color-line);
  border-radius:32px;
  padding:0 6px 0 18px;
  margin-left:auto;gap:6px;
  transition:border .2s,box-shadow .2s;
}
.header-search-form:focus-within{border-color:var(--color-accent);box-shadow:0 0 0 3px rgba(42,127,139,.14)}
.header-search-form .search-icon{color:var(--color-muted);font-size:15px}
.header-search-form input{
  border:0;outline:0;flex:1;min-width:50px;background:transparent;
  font-size:14px;color:var(--color-ink);
}
.header-search-form input::placeholder{color:#8d969b;font-size:14px}
.search-btn{
  border:0;background:var(--color-accent);color:#fff;
  width:33px;height:33px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .2s;
}
.search-btn:hover{background:#1d6c78}
.nav-cta-mobile{display:none}
.header-cta{flex-shrink:0}
.nav-burger{display:none;position:relative;z-index:99;border:0;background:transparent;color:var(--color-ink);font-size:22px;padding:8px}
@media(max-width:980px){
  .header-inner{flex-wrap:wrap;gap:8px 14px}
  .site-nav{
    display:none;flex-direction:column;align-items:stretch;
    position:absolute;top:calc(100% + 1px);left:0;right:0;
    background:var(--color-cloud);border-bottom:1px solid var(--color-line);
    padding:16px 20px 20px;gap:4px;
    box-shadow:0 18px 30px rgba(26,46,53,.08);
  }
  .site-nav.open{display:flex}
  .nav-link.is-active{background:transparent}
  .header-search-form{order:4;flex:1 1 100%;max-width:100%;margin-top:4px}
  .header-cta{display:none}
  .nav-cta-mobile{display:block;margin-top:8px;background:var(--color-coral);color:#fff;text-align:center}
  .nav-burger{display:inline-block;margin-left:auto}
  .nav-burger[aria-expanded="true"]{color:var(--color-accent)}
}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid transparent;border-radius:var(--radius-sm);
  padding:10px 22px;font-size:15px;font-weight:600;
  line-height:1.4;transition:background .2s,color .2s,border-color .2s,box-shadow .2s,transform .2s;
  gap:8px;
}
.btn-lg{padding:14px 30px;font-size:16px}
.btn-xl{padding:16px 36px;font-size:17px}
.btn-coral{background:var(--color-coral);border-color:var(--color-coral);color:#fff}
.btn-coral:hover{background:#d65d40;border-color:#d65d40;color:#fff;transform:translateY(-2px);box-shadow:0 10px 18px rgba(231,111,81,.2)}
.btn-coral:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--color-accent);color:var(--color-accent)}
.btn-ghost:hover{background:var(--color-accent);color:#fff}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.7);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.18);color:#fff;border-color:#fff}

/* Hero */
.hero{
  position:relative;padding:86px 0 60px;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.15;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,var(--color-cloud) 32%,rgba(244,241,234,.85) 64%,rgba(244,241,234,.5));
}
.hero .container{position:relative;z-index:2}
.hero-grid{display:flex;align-items:center}
.hero-copy{padding-right:28px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.75);
  border:1px solid rgba(79,157,141,.3);
  color:var(--color-verdigris);
  font-size:13px;font-weight:600;
  padding:7px 16px;border-radius:var(--radius-pill);
  margin-bottom:24px;
}
.hero-badge i{font-size:8px;color:var(--color-verdigris)}
.hero-copy h1{
  font-size:clamp(30px,4.6vw,49px);
  font-weight:700;line-height:1.25;letter-spacing:.01em;
  margin:0 0 22px;color:var(--color-ink);
}
.hero-desc{
  font-size:17px;line-height:1.85;color:var(--color-muted);
  max-width:560px;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:18px;padding-top:14px;
  border-top:1px solid rgba(219,214,203,.8);
}
.hero-trust span{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--color-ink);
}
.hero-trust i{color:var(--color-verdigris);font-size:15px}
.hero-visual-col{position:relative;padding:18px 0 18px 20px}
.visual-composition{position:relative;min-height:450px}
.browser-window{
  background:#fff;border:1px solid rgba(219,214,203,.64);
  border-radius:14px;box-shadow:0 18px 50px rgba(26,46,53,.12);
  overflow:hidden;transform:rotate(.7deg);
}
.browser-top{
  display:flex;align-items:center;gap:8px;
  background:#eeebe4;padding:13px 16px;
}
.browser-top span{width:11px;height:11px;border-radius:50%;display:block}
.browser-top span:nth-child(1){background:#f7a08a}
.browser-top span:nth-child(2){background:#e5b454}
.browser-top span:nth-child(3){background:#7fbf9a}
.browser-top .top-url{
  margin-left:14px;width:auto;height:auto;border-radius:32px;
  background:#fff;flex:1;font-size:12px;color:#849095;padding:6px 14px;
  display:inline-flex;align-items:center;gap:6px;letter-spacing:.02em;
}
.browser-top .top-url i{color:var(--color-verdigris)}
.browser-body img{width:100%;height:300px;object-fit:cover}
.float-note{
  position:absolute;z-index:2;
  background:rgba(255,255,255,.95);border:1px solid rgba(219,214,203,.6);
  border-radius:12px;padding:10px 16px;
  display:flex;align-items:center;gap:9px;
  box-shadow:0 10px 24px rgba(26,46,53,.1);
}
.float-a{top:30px;right:-6px}
.float-b{bottom:20px;left:-2px}
.float-note .note-icon{width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;color:#fff}
.float-a .note-icon{background:var(--color-verdigris)}
.float-b .note-icon{background:var(--color-accent)}
.float-note strong{margin-left:2px}
@media(max-width:920px){
  .hero-grid{display:block}
  .hero-copy{padding-right:0}
  .hero-visual-col{padding:24px 0 0}
  .visual-composition{min-height:auto}
  .browser-body img{height:230px}
}

/* Section head */
.section-head{margin-bottom:54px;text-align:center;position:relative;z-index:2}
.section-head.lefthead{text-align:left;max-width:640px;margin-bottom:50px}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;
  letter-spacing:.14em;color:var(--color-verdigris);
  margin-bottom:14px;text-transform:uppercase;
  background:rgba(79,157,141,.1);
  padding:5px 15px;border-radius:var(--radius-pill);
}
.section-head h2{
  font-size:clamp(22px,3vw,33px);
  font-weight:700;line-height:1.38;
  margin-bottom:14px;letter-spacing:.01em;
  color:var(--color-ink);
}
.section-sub{color:var(--color-muted);font-size:16px;max-width:680px;margin-top:8px;margin-inline:auto;line-height:1.8}
.lefthead .section-sub{margin-inline:0}

/* Explore / 三大入口 */
.explore-section{background:var(--color-cloud)}
.explore-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:stretch}
.explore-feature{
  position:relative;background:var(--color-surface);
  border:1px solid var(--color-line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;min-height:330px;transform:translateY(0);
  transition:transform .22s,border-color .22s,box-shadow .22s;
  display:flex;flex-direction:column;justify-content:flex-end;
}
.explore-feature:hover{transform:translateY(-3px);border-color:rgba(42,127,139,.55);box-shadow:var(--shadow-hover)}
.explore-feature img{
  position:absolute;top:0;right:0;width:58%;height:100%;
  object-fit:cover;opacity:.94;
}
.explore-feature::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(75deg,#fff 9%,rgba(255,255,255,.86) 37%,rgba(255,255,255,.2) 70%,rgba(255,255,255,.04));
}
.feature-main{position:relative;z-index:2;display:block;padding:34px;color:var(--color-ink);max-width:62%}
.feature-main:hover{color:var(--color-ink)}
.feature-icon{
  width:50px;height:50px;border-radius:14px;
  background:rgba(42,127,139,.12);color:var(--color-accent);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:20px;margin-bottom:23px;
}
.feature-main h3{font-size:21px;line-height:1.5;margin-bottom:12px;color:var(--color-ink)}
.feature-main p{color:var(--color-muted);font-size:15px;line-height:1.8;margin-bottom:22px}
.feature-link{font-weight:700;color:var(--color-accent);font-size:15px;display:inline-flex;align-items:center;gap:8px}
.feature-link i{transition:transform .2s}
.explore-feature:hover .feature-link i{transform:translateX(4px)}
.explore-sidecard-group{display:flex;flex-direction:column;gap:24px}
.side-card{
  background:var(--color-surface);border:1px solid var(--color-line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  flex:1;min-height:150px;
  transition:transform .22s,box-shadow .22s,border-color .22s;
}
.side-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(42,127,139,.45)}
.side-card a{display:block;padding:28px;height:100%;color:var(--color-ink)}
.side-card a:hover{color:var(--color-ink)}
.side-label{font-size:12px;font-weight:700;color:var(--color-verdigris);letter-spacing:.06em;margin-bottom:8px;display:block}
.side-card h3{margin-bottom:6px;font-size:18px;font-weight:600;line-height:1.55}
.side-card p{color:var(--color-muted);font-size:14px;margin-bottom:14px}
.arrow{font-size:16px;color:var(--color-accent);transition:transform .2s;display:inline-block}
.side-card:hover .arrow{transform:translateX(6px)}
@media(max-width:960px){
  .explore-grid{grid-template-columns:1fr}
  .explore-feature{min-height:260px}
  .feature-main{max-width:75%}
}
@media(max-width:640px){
  .feature-main{max-width:100%;padding:26px}
  .explore-feature img{position:relative;width:100%;height:200px;order:-1}
  .explore-feature{display:flex;flex-direction:column;justify-content:flex-start}
  .feature-main{position:relative;z-index:2}
  .explore-feature::after{display:none}
}

/* Steps */
.steps-section{background:var(--color-surface)}
.steps-track{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:30px;position:relative;
}
.step-item{
  position:relative;background:var(--color-cloud);
  border:1px solid var(--color-line);
  border-radius:var(--radius-card);
  padding:38px 28px 30px;
  text-align:left;
  transition:box-shadow .2s,border-color .2s,transform .2s;
}
.step-item:hover{border-color:rgba(42,127,139,.4);box-shadow:var(--shadow-card)}
.step-node{display:flex;align-items:center;gap:18px;margin-bottom:20px}
.step-no{
  width:34px;height:34px;border-radius:50%;
  background:var(--color-accent);color:#fff;
  font-size:13px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
}
.step-node i{font-size:28px;color:var(--color-verdigris)}
.step-item h3{font-size:18px;font-weight:700;margin-bottom:10px;color:var(--color-ink)}
.step-item p{font-size:14.5px;color:var(--color-muted);line-height:1.8}
.step-item:not(:last-child)::after{
  content:"";position:absolute;top:70px;right:-31px;
  width:30px;border-top:3px dashed var(--color-line);z-index:1;
}
@media(max-width:900px){
  .steps-track{grid-template-columns:1fr;gap:16px}
  .step-item:not(:last-child)::after{display:none}
}

/* Proof */
.proof-section{background:#edf1ee;border-block:1px solid rgba(219,214,203,.55)}
.proof-wrap{display:flex;align-items:center}
.proof-intro{padding-right:12px}
.proof-intro h2{margin-bottom:20px}
.proof-intro p{color:var(--color-muted);margin-bottom:18px;font-size:16px}
.textlink{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:700;color:var(--color-accent);font-size:15px;
  padding-bottom:2px;border-bottom:2px solid rgba(42,127,139,.18);
}
.textlink i{transition:transform .2s}
.textlink:hover i{transform:translateX(4px)}
.proof-panel{padding:24px 8px 10px 12px}
.metrics-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:28px}
.metric-item{
  background:var(--color-surface);border:1px solid var(--color-line);
  border-radius:var(--radius-card);padding:24px 14px;text-align:center;
  box-shadow:var(--shadow-card);
}
.metric-num{
  display:block;font-size:38px;font-weight:800;line-height:1.1;
  color:var(--color-accent);letter-spacing:-.02em;
}
.metric-num sup{font-size:.5em;color:var(--color-verdigris);margin-left:2px}
.metric-label{font-size:13px;color:var(--color-muted);display:block;margin-top:8px}
.proof-quote{
  background:var(--color-cloud);border-left:4px solid var(--color-verdigris);
  padding:24px 28px;border-radius:0 10px 10px 0;
}
.proof-quote q{
  font-size:15.5px;color:var(--color-ink);
  quotes:"“" "”";
}
.proof-quote footer{font-size:13.5px;color:var(--color-muted);margin-top:12px}
@media(max-width:880px){
  .proof-wrap{display:block}
  .proof-intro{padding-right:0;margin-bottom:28px}
  .metrics-grid{grid-template-columns:repeat(3,1fr);gap:10px}
  .metric-item{padding:18px 8px}
  .metric-num{font-size:26px}
}

/* FAQ */
.faq-section{background:var(--color-cloud)}
.center-head{max-width:720px;margin:0 auto 44px;text-align:center}
.center-head .eyebrow{margin-bottom:12px}
.faq-list{max-width:900px;margin:0 auto;border-top:1px solid var(--color-line)}
.faq-item{border-bottom:1px solid var(--color-line);background:transparent;transition:background .2s}
.faq-item.open{background:#faf8f3}
.faq-q{
  display:flex;align-items:flex-start;justify-content:space-between;
  width:100%;background:transparent;border:0;
  padding:23px 4px;text-align:left;
  color:var(--color-ink);font-size:17px;
  font-weight:600;line-height:1.6;gap:18px;
}
.faq-q-text{flex:1}
.faq-dot{
  width:34px;height:34px;border-radius:50%;
  color:var(--color-accent);background:rgba(42,127,139,.12);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;flex-shrink:0;
  transition:transform .28s,background .28s,color .28s;
}
.faq-item.open .faq-dot{background:var(--color-accent);color:#fff;transform:rotate(135deg)}
.faq-item.open .faq-q{color:var(--color-accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a-inner{padding:2px 20px 26px 60px;color:var(--color-muted);font-size:15.5px;line-height:1.9}
@media(max-width:560px){
  .faq-a-inner{padding-left:24px}
}

/* CTA */
.cta-section{background:var(--color-cloud)}
.cta-panel{
  position:relative;overflow:hidden;
  background:linear-gradient(105deg,#12333d 0,#0e282f 55%,#153f4a 100%);
  border-radius:20px;
  padding:72px 50px;
  text-align:center;
  color:#fff;
  box-shadow:0 20px 50px rgba(14,40,47,.22);
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') right center/cover no-repeat;
  opacity:.2;
}
.cta-panel > *{position:relative;z-index:2}
.cta-panel h2{
  color:#fff;font-size:clamp(24px,3.5vw,38px);
  font-weight:700;line-height:1.35;margin-bottom:18px;
}
.cta-panel p{max-width:660px;margin:0 auto 30px;color:rgba(255,255,255,.83);font-size:16px}
.cta-panel .btn-coral{box-shadow:0 10px 24px rgba(231,111,81,.24)}
.cta-panel .btn-coral:hover{transform:translateY(-3px)}
.cta-btn-group{display:flex;gap:15px;justify-content:center;flex-wrap:wrap;margin-bottom:16px}
.cta-note{font-size:12.5px;color:rgba(255,255,255,.45)}
@media(max-width:720px){
  .cta-panel{padding:54px 24px 44px;border-radius:16px}
}

/* News */
.news-section{background:var(--color-surface)}
.news-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:42px}
.news-head-row .eyebrow{margin-bottom:8px}
.news-head-row h2{margin-bottom:0}
.news-tabs{display:flex;gap:4px;background:var(--color-cloud);border:1px solid var(--color-line);padding:4px;border-radius:var(--radius-pill)}
.news-tab{
  display:inline-block;font-size:13px;font-weight:600;padding:7px 20px;
  border-radius:var(--radius-pill);color:var(--color-muted);transition:all .2s;
}
.news-tab:hover{color:var(--color-accent)}
.news-tab.active{background:var(--color-accent);color:#fff;box-shadow:0 4px 10px rgba(42,127,139,.25)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--color-cloud);
  border:1px solid var(--color-line);
  border-radius:var(--radius-card);
  padding:24px 24px 18px;
  box-shadow:0 1px 0 rgba(255,255,255,.5);
  transition:transform .22s,border-color .22s,box-shadow .22s,background .2s;
}
.news-card:hover{
  transform:translateY(-3px);
  background:#fff;
  border-color:rgba(42,127,139,.42);
  box-shadow:var(--shadow-hover);
}
.news-card-top{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:12px}
.category-chip{
  background:rgba(79,157,141,.14);color:#31746b;
  font-size:12px;font-weight:700;padding:4px 12px;border-radius:var(--radius-pill);
}
.news-date{font-size:13px;color:var(--color-muted)}
.news-card h3{font-size:18px;line-height:1.6;font-weight:700;margin-bottom:10px}
.news-card h3 a{color:var(--color-ink);transition:color .2s}
.news-card h3 a:hover{color:var(--color-accent)}
.news-card p{font-size:14px;line-height:1.8;color:var(--color-muted);margin-bottom:16px}
.readmore{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--color-accent);
}
.readmore i{transition:transform .2s}
.news-card:hover .readmore i{transform:translateX(5px)}
.news-empty-state{
  grid-column:1/-1;background:var(--color-cloud);
  border:1px dashed var(--color-line);border-radius:var(--radius-card);
  padding:52px 20px;text-align:center;color:var(--color-muted);
}
.news-empty-state i{font-size:34px;color:var(--color-line);display:block;margin-bottom:12px}
@media(max-width:860px){
  .news-grid{grid-template-columns:1fr;gap:16px}
}

/* Footer */
.site-footer{
  background:#1a2e35;color:rgba(255,255,255,.72);
}
.footer-gradline{height:4px;background:linear-gradient(90deg,var(--color-verdigris),var(--color-accent),transparent)}
.footer-main{
  padding:58px 0 36px;
  border-bottom:1px solid rgba(255,255,255,.09);
}
.footer-brand-title{
  color:#fff;font-weight:700;font-size:20px;display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;
}
.footer-brand-title i{color:var(--color-verdigris)}
.footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.65);max-width:360px}
.footer-col h4{
  color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.02em;
}
.footer-col a{
  display:block;color:rgba(255,255,255,.62);font-size:14px;
  padding:5px 0;transition:color .2s;
}
.footer-col a:hover{color:#fff}
.footer-col .footer-info{font-size:14px;color:rgba(255,255,255,.55);padding:5px 0;line-height:1.7}
.footer-bottom{
  padding:28px 0 30px;font-size:13px;
  color:rgba(255,255,255,.45);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:#fff}
@media(max-width:760px){
  .footer-main .small-12{margin-bottom:26px}
}

/* misc / foundation cleanup */
.columns, .column{padding-inline:.9375rem}
.news-tabs .news-tab, .news-tab{text-decoration:none}
.faq-icon{font-style:normal}

/* roulang page: article */
:root {
            --color-cloud: #F4F1EA;
            --color-surface: #FFFFFF;
            --color-ink: #1A2E35;
            --color-muted: #6B7B80;
            --color-accent: #1D7A83;
            --color-soft: #E8F1F0;
            --color-accent-2: #4F9D8D;
            --color-cta: #E76F51;
            --color-cta-dark: #C9563D;
            --color-amber: #E5B454;
            --color-line: #DBD6CB;
            --radius-md: 8px;
            --radius-sm: 6px;
            --shadow-card: 0 2px 10px rgba(26, 46, 53, 0.05);
            --shadow-hover: 0 12px 28px rgba(29, 122, 131, 0.12);
            --transition: 0.24s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--color-cloud);
            color: var(--color-ink);
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "Helvetica Neue", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #145A63;
            text-decoration: underline;
        }
        button,
        input,
        select {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            overflow: hidden;
            clip: rect(0 0 0 0);
            white-space: nowrap;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 80;
            background: rgba(244, 241, 234, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(219, 214, 203, 0.8);
        }
        .header-inner {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: auto 1fr minmax(240px, 420px) auto;
            align-items: center;
            gap: 16px;
            min-height: 74px;
            padding: 0 24px;
        }
        .brand-lockup {
            display: inline-flex;
            gap: 10px;
            align-items: center;
            text-decoration: none;
            flex-shrink: 0;
        }
        .brand-lockup:hover {
            text-decoration: none;
            opacity: 0.92;
        }
        .brand-mark {
            width: 38px;
            height: 38px;
            display: inline-grid;
            place-items: center;
            background: var(--color-accent);
            color: #FFFFFF;
            border-radius: 12px;
            font-size: 18px;
            box-shadow: 0 6px 16px rgba(29, 122, 131, 0.18);
        }
        .brand-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .brand-name {
            color: var(--color-ink);
            font-weight: 700;
            font-size: 17px;
            letter-spacing: 0.4px;
        }
        .brand-tag {
            color: var(--color-accent-2);
            font-size: 11px;
            letter-spacing: 1.6px;
        }

        .site-nav {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 22px;
        }
        .nav-link {
            color: var(--color-ink);
            font-size: 15px;
            font-weight: 500;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            line-height: 1.4;
            transition: border-color 0.2s, color 0.2s;
        }
        .nav-link:hover {
            color: var(--color-accent);
            text-decoration: none;
            border-color: rgba(29, 122, 131, 0.4);
        }
        .nav-link.is-active {
            color: var(--color-accent);
            border-color: var(--color-accent);
            font-weight: 600;
        }

        .header-search-form {
            position: relative;
            display: flex;
            align-items: center;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 999px;
            height: 44px;
            padding: 0 12px 0 18px;
            transition: border-color 0.2s, box-shadow 0.2s;
        }
        .header-search-form:focus-within {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 4px rgba(29, 122, 131, 0.12);
        }
        .header-search-form .search-icon {
            color: var(--color-muted);
            font-size: 14px;
            pointer-events: none;
            margin-right: 10px;
        }
        .header-search-form input {
            border: 0;
            background: transparent;
            width: 100%;
            min-width: 0;
            font-size: 14px;
            color: var(--color-ink);
            outline: none;
            padding: 0;
            box-shadow: none;
        }
        .header-search-form input::placeholder {
            color: #97A3A3;
        }
        .header-search-form input:focus {
            box-shadow: none;
        }
        .search-btn {
            background: var(--color-accent);
            color: #fff;
            border: 0;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: grid;
            place-items: center;
            cursor: pointer;
            font-size: 13px;
            transition: background 0.2s;
            flex-shrink: 0;
        }
        .header-search-form .search-btn:hover {
            background: #155F66;
        }
        .search-btn:focus-visible,
        .nav-burger:focus-visible,
        .btn:focus-visible,
        .footer-link:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            padding: 0 22px;
            border: 1px solid transparent;
            cursor: pointer;
            transition: background 0.24s, border-color 0.24s, color 0.24s, transform 0.18s;
            white-space: nowrap;
            text-align: center;
            line-height: 1;
            text-decoration: none;
        }
        .btn:hover {
            text-decoration: none;
            transform: translateY(-1px);
        }
        .btn-coral {
            background: var(--color-cta);
            color: #FFFFFF;
            border-color: var(--color-cta);
            box-shadow: 0 6px 18px rgba(231, 111, 81, 0.22);
        }
        .btn-coral:hover {
            background: var(--color-cta-dark);
            border-color: var(--color-cta-dark);
            color: #fff;
            box-shadow: 0 9px 22px rgba(231, 111, 81, 0.30);
        }
        .btn-outline-light {
            background: transparent;
            color: #FFFFFF;
            border-color: rgba(255, 255, 255, 0.78);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #FFFFFF;
            color: #FFFFFF;
        }

        .nav-burger {
            display: none;
            background: var(--color-accent);
            border: 0;
            width: 46px;
            height: 46px;
            border-radius: 14px;
            place-items: center;
            color: #FFFFFF;
            cursor: pointer;
            font-size: 20px;
            transition: background 0.2s, transform 0.15s;
        }
        .nav-burger:hover {
            background: #155F66;
        }
        .nav-cta-mobile {
            display: none;
            margin-top: 14px;
            width: 100%;
            justify-content: center;
        }

        .site-main {
            min-height: 60vh;
        }

        .article-lead-banner {
            background: linear-gradient(135deg, #E7F0F0 0%, #FBF9F5 64%, var(--color-cloud) 100%);
            border-bottom: 1px solid var(--color-line);
            padding: 44px 0 20px;
        }
        .breadcrumb-nav {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted);
            margin-bottom: 26px;
        }
        .breadcrumb-nav a {
            color: var(--color-muted);
        }
        .breadcrumb-nav a:hover {
            color: var(--color-accent);
            text-decoration: none;
        }
        .breadcrumb-nav .sep {
            color: #B8C0BC;
        }
        .breadcrumb-current {
            color: var(--color-ink);
            max-width: 300px;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }

        .post-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(79, 157, 141, 0.14);
            color: #1F6B63;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
            margin-bottom: 14px;
            letter-spacing: 0.2px;
        }
        .post-eyebrow i {
            font-size: 12px;
        }

        .article-lead-title {
            font-size: clamp(28px, 4vw, 42px);
            line-height: 1.3;
            font-weight: 700;
            margin: 10px 0 14px;
            max-width: 880px;
            color: var(--color-ink);
            letter-spacing: 0.4px;
        }

        .post-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 26px;
            align-items: center;
            color: var(--color-muted);
            font-size: 14px;
            margin-top: 16px;
        }
        .post-meta i {
            color: var(--color-accent-2);
            margin-right: 5px;
        }
        .post-meta-item {
            display: inline-flex;
            align-items: center;
        }

        .post-layout {
            padding: 48px 0 0;
        }
        .post-article-card {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 20px;
            box-shadow: var(--shadow-card);
            padding: clamp(24px, 4vw, 56px);
            margin-bottom: 36px;
        }

        .post-feature {
            border-radius: 16px;
            overflow: hidden;
            margin-bottom: 28px;
        }
        .post-feature img {
            width: 100%;
            max-height: 420px;
            object-fit: cover;
            margin: 0;
        }
        .post-summary {
            background: #F8F6F0;
            border-left: 4px solid var(--color-accent);
            border-radius: 10px;
            padding: 18px 20px;
            color: #58686C;
            margin: 0 0 34px;
            font-size: 15px;
            line-height: 1.8;
        }

        .post-body {
            max-width: 100%;
            color: var(--color-ink);
            font-size: 16px;
            line-height: 1.9;
            word-wrap: break-word;
        }
        .post-body > *:first-child {
            margin-top: 0;
        }
        .post-body p {
            margin: 0 0 20px;
        }
        .post-body h2,
        .post-body h3,
        .post-body h4 {
            color: #16333A;
            line-height: 1.45;
            margin-top: 34px;
            margin-bottom: 14px;
            scroll-margin-top: 120px;
        }
        .post-body h2 {
            font-size: 24px;
            border-left: 4px solid var(--color-accent);
            padding-left: 14px;
        }
        .post-body h3 {
            font-size: 19px;
            font-weight: 700;
        }
        .post-body h4 {
            font-size: 17px;
        }
        .post-body a,
        .post-return .text-link {
            color: var(--color-accent);
            text-decoration: underline;
            text-underline-offset: 3px;
            text-decoration-color: rgba(29, 122, 131, 0.45);
        }
        .post-body a:hover {
            background: rgba(29, 122, 131, 0.06);
            color: #14626B;
        }
        .post-body ul,
        .post-body ol {
            margin: 0 0 22px;
            padding-left: 26px;
        }
        .post-body li {
            margin-bottom: 8px;
        }
        .post-body blockquote {
            background: #F1F7F5;
            border-radius: 10px;
            border-left: 4px solid var(--color-accent-2);
            margin: 24px 0;
            padding: 16px 20px;
            quotes: "“" "”";
            color: #35565C;
        }
        .post-body blockquote p {
            margin-bottom: 6px;
        }
        .post-body code {
            background: var(--color-cloud);
            padding: 0.2em 0.4em;
            border-radius: 4px;
            font-family: "Consolas", "Menlo", monospace;
            font-size: 92%;
        }
        .post-body pre {
            background: #18363D;
            color: #F7F1E6;
            padding: 18px 20px;
            border-radius: 10px;
            overflow: auto;
            line-height: 1.7;
            margin: 24px 0;
        }
        .post-body pre code {
            background: transparent;
            padding: 0;
            color: inherit;
        }
        .post-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 22px 0;
            font-size: 15px;
        }
        .post-body th,
        .post-body td {
            border: 1px solid var(--color-line);
            padding: 10px 12px;
            text-align: left;
        }
        .post-body th {
            background: #F1F2EA;
            font-weight: 600;
        }
        .post-body img {
            border-radius: 12px;
            margin: 24px 0;
        }

        .post-article-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid var(--color-line);
        }
        .post-tags {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .post-tags-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-ink);
        }
        .tag-pill {
            display: inline-flex;
            align-items: center;
            background: #EDF3F1;
            border-radius: 999px;
            color: #1F675F;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            transition: background 0.2s, color 0.2s;
            margin: 0;
        }
        .tag-pill:hover {
            background: var(--color-accent);
            color: #fff;
            text-decoration: none;
        }
        .post-return {
            display: flex;
            align-items: center;
            gap: 8px 18px;
            margin: 20px 0 0;
            color: var(--color-muted);
            font-size: 14px;
        }
        .text-link {
            font-weight: 600;
            text-decoration: none;
        }

        .post-not-found {
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 20px;
            padding: 56px 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }
        .not-found-icon {
            width: 70px;
            height: 70px;
            border-radius: 40px;
            display: inline-grid;
            place-items: center;
            background: #F7EFE7;
            color: var(--color-cta);
            font-size: 28px;
            margin-bottom: 16px;
        }
        .not-found-title {
            font-size: 24px;
            margin-bottom: 10px;
            color: var(--color-ink);
        }
        .not-found-desc {
            color: var(--color-muted);
            margin-bottom: 22px;
        }

        .related-section {
            background: #FDFCF8;
            border-top: 1px solid var(--color-line);
            padding: 56px 0;
        }
        .related-head {
            display: flex;
            align-items: end;
            justify-content: space-between;
            margin-bottom: 26px;
            gap: 18px;
        }
        .related-head h2 {
            font-size: 24px;
            margin: 0;
            letter-spacing: 0.3px;
        }
        .related-head-more {
            color: var(--color-accent);
            font-size: 14px;
            white-space: nowrap;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            display: flex;
            flex-direction: column;
            background: var(--color-surface);
            border: 1px solid var(--color-line);
            border-radius: 12px;
            overflow: hidden;
            transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
            height: 100%;
        }
        .related-card:hover {
            transform: translateY(-2px);
            border-color: #A7CECB;
            box-shadow: var(--shadow-hover);
        }
        .related-card:hover .related-more {
            transform: translateX(4px);
        }
        .related-cover img {
            height: 158px;
            width: 100%;
            object-fit: cover;
            margin: 0;
        }
        .related-body {
            padding: 18px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }
        .related-body .subject {
            font-size: 12px;
            color: var(--color-accent-2);
            font-weight: 600;
        }
        .related-body h3 {
            font-size: 16px;
            line-height: 1.5;
            margin: 0;
        }
        .related-body h3 a {
            color: var(--color-ink);
        }
        .related-body p {
            color: var(--color-muted);
            font-size: 13px;
            line-height: 1.65;
            margin-bottom: 10px;
        }
        .related-more {
            font-size: 14px;
            font-weight: 600;
            margin-top: auto;
            transition: transform 0.2s;
        }

        .post-cta {
            padding: 50px 0 70px;
            background: var(--color-cloud);
        }
        .cta-panel {
            border-radius: 20px;
            background: linear-gradient(128deg, #183C44 0%, #25606B 60%, #3A8B89 100%);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: 68%;
            background-repeat: no-repeat;
            background-position: right bottom;
            padding: clamp(30px, 5vw, 56px);
            color: #FFFFFF;
            box-shadow: 0 18px 48px rgba(18, 51, 59, 0.22);
        }
        .cta-panel h2 {
            font-size: clamp(22px, 3vw, 31px);
            line-height: 1.4;
            margin: 0 0 12px;
            color: #fff;
            max-width: 720px;
        }
        .cta-panel p {
            max-width: 660px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 26px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .site-footer {
            background: #1C3A42;
            color: #BCD0CF;
            padding-top: 60px;
        }
        .footer-underline {
            height: 4px;
            background: linear-gradient(90deg, rgba(29, 122, 131, 0.25), rgba(79, 157, 141, 0.8), rgba(231, 111, 81, 0.55));
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 34px;
            padding-bottom: 30px;
        }
        .footer-grid-title {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            text-decoration: none;
        }
        .footer-brand:hover {
            opacity: 0.9;
        }
        .footer-brand .brand-name {
            color: #fff;
            font-size: 19px;
        }
        .footer-brand .brand-mark {
            width: 34px;
            height: 34px;
            background: rgba(255, 255, 255, 0.1);
        }
        .footer-brand-caption {
            color: #98B0B3;
            font-size: 13px;
            line-height: 1.6;
            margin-top: 8px;
            max-width: 260px;
        }
        .footer-col p {
            font-size: 13px;
            line-height: 1.75;
            color: #A9BDBD;
            margin-bottom: 6px;
        }
        .footer-link-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-link-list li {
            margin-bottom: 9px;
        }
        .footer-link-list a,
        .footer-mini-link {
            color: #BCD3D2;
            font-size: 13px;
        }
        .footer-link-list a:hover {
            color: #FFF;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 18px 0;
            font-size: 12px;
            color: #8FA9AB;
        }
        .footer-bottom-inner {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 22px;
            align-items: center;
            justify-content: space-between;
        }

        .site-footer .container + .container {
            padding-top: 0;
        }

        /* search-global for responsive */
        .mobile-search-toggle {
            display: none;
        }

        @media screen and (max-width: 1100px) {
            .header-inner {
                grid-template-columns: auto 1fr auto;
                grid-template-areas:
                    "brand search cta";
                gap: 12px;
                min-height: 74px;
            }
            .header-search-form {
                grid-area: search;
                margin: 0 auto;
                width: 100%;
            }
            .site-header .header-cta {
                grid-area: cta;
            }
            .site-nav {
                order: 12;
                display: none;
                grid-column: 1 / -1;
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
                background: #fffdf7;
                border-radius: 14px;
                border: 1px solid var(--color-line);
                padding: 14px;
                margin-top: -4px;
                box-shadow: 0 14px 32px rgba(40, 58, 63, 0.1);
            }
            .site-nav.is-open {
                display: flex;
            }
            .site-nav .nav-link,
            .site-nav .nav-cta-mobile {
                border: 0;
                padding: 12px 16px;
                font-size: 15px;
                border-radius: 8px;
            }
            .site-nav .nav-link:hover {
                background: #F3F0E8;
                border-color: transparent;
            }
            .site-nav .nav-link.is-active {
                background: #E8F1F0;
                color: #14646B;
                border-color: transparent;
            }
            .nav-cta-mobile {
                display: inline-flex;
                margin-top: 8px;
            }
            .header-cta {
                display: none !important;
            }
            .nav-burger {
                display: inline-grid;
                margin-left: auto;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media screen and (max-width: 767px) {
            .header-inner {
                display: flex;
                flex-wrap: wrap;
                padding: 12px 20px;
                gap: 12px;
            }
            .header-inner .brand-lockup {
                margin-right: auto;
            }
            .header-search-form {
                width: 100%;
                order: 4;
                margin: 4px 0 8px;
            }
            .header-inner .nav-burger {
                margin-left: 4px;
            }
            .brand-name {
                font-size: 16px;
            }
            .brand-mark {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .site-nav {
                order: 5;
                width: 100%;
            }
            .nav-cta-mobile {
                display: inline-flex;
            }
            .site-main {
                padding-top: 6px;
            }
            .article-lead-banner {
                padding: 22px 12px 0;
            }
            .article-lead-title {
                font-size: 23px;
            }
            .post-layout {
                padding: 18px 10px 0;
            }
            .post-article-card {
                padding: 18px;
                border-radius: 14px;
            }
            .post-feature img {
                max-height: 220px;
            }
            .post-meta {
                gap: 8px 16px;
                font-size: 13px;
                line-height: 1.5;
            }
            .related-layout-grid {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .related-head-more {
                font-size: 13px;
            }
            .cta-panel {
                padding: 26px 20px;
                background-size: cover;
                background-position: center;
            }
            .cta-actions .btn {
                width: 100%;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 30px 20px;
            }
            .footer-bottom-inner {
                justify-content: center;
            }
        }

        @media screen and (max-width: 520px) {
            body {
                font-size: 15px;
            }
            .container {
                padding: 0 16px;
            }
            .header-search-form input {
                font-size: 13px;
            }
            .post-body h2 {
                font-size: 20px;
            }
            .post-body blockquote {
                padding: 14px 14px;
            }
            .footer-top {
                grid-template-columns: 1fr;
            }
            .related-layout-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category1 */
:root{
  --color-cloud:#F4F1EA;
  --color-surface:#FFFFFF;
  --color-ink:#1A2E35;
  --color-accent-azure:#2A7F8B;
  --color-accent-verdigris:#4F9D8D;
  --color-cta-coral:#C64F36;
  --color-warm-amber:#E5B454;
  --color-mist-line:#DBD6CB;
  --soft-text:#56666B;
  --radius:8px;
  --radius-lg:16px;
  --shadow-sm:0 2px 8px rgba(26,46,53,.04);
  --shadow-md:0 10px 28px rgba(42,127,139,.12);
  --container-width:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:PingFang SC,Microsoft YaHei,Source Han Sans SC,Noto Sans CJK SC,sans-serif;
  background:var(--color-cloud);
  color:var(--color-ink);
  line-height:1.8;
  min-width:320px;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{
  color:var(--color-ink);
  line-height:1.3;
  margin:0 0 .45em;
  text-wrap:balance;
  font-weight:700;
}
p{margin:0 0 1rem}
a{color:var(--color-accent-azure);text-decoration:none;transition:color .2s ease,border-color .2s ease}
a:hover{color:#1D6872}
img{max-width:100%;height:auto;display:block}
figure{margin:0}
button{font:inherit;cursor:pointer}
input,textarea,select{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
.grid-container{max-width:var(--container-width);padding-left:24px;padding-right:24px}
.module{padding:clamp(56px,8vw,96px) 0}
.module-surface{background:var(--color-surface)}
.module-soft{background:rgba(79,157,141,.08)}
.section-head{max-width:820px;margin-bottom:42px}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:4px 14px;
  background:rgba(42,127,139,.08);
  color:var(--color-accent-azure);
  font-size:14px;
  font-weight:700;
  border-radius:999px;
  letter-spacing:.4px;
}
.section-head h2{
  font-size:clamp(24px,3vw,32px);
  margin:14px 0 12px;
}
.section-lead{font-size:17px;color:var(--soft-text);max-width:640px}
.visual-frame{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid rgba(219,214,203,.8);
  background:var(--color-surface);
  box-shadow:0 18px 44px rgba(26,46,53,.10);
}
.visual-frame img{width:100%;height:100%;object-fit:cover}
.visual-note{
  position:absolute;
  left:16px;
  bottom:16px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  background:rgba(255,255,255,.92);
  border:1px solid rgba(219,214,203,.75);
  border-radius:999px;
  color:var(--color-ink);
  font-size:13px;
  font-weight:600;
  box-shadow:0 4px 14px rgba(26,46,53,.08);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 24px;
  border-radius:6px;
  font-weight:700;
  font-size:16px;
  line-height:1;
  border:1.5px solid transparent;
  transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
  text-align:center;
}
.btn-coral{
  background:var(--color-cta-coral);
  border-color:var(--color-cta-coral);
  color:#fff;
}
.btn-coral:hover{
  background:#A83F2B;
  border-color:#A83F2B;
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 10px 22px rgba(198,79,54,.25);
}
.btn-outline{
  background:transparent;
  border-color:var(--color-accent-azure);
  color:var(--color-accent-azure);
}
.btn-outline:hover{
  background:var(--color-accent-azure);
  color:#fff;
  border-color:var(--color-accent-azure);
  transform:translateY(-2px);
}
.btn-ghost{
  background:transparent;
  border:1.5px solid rgba(244,241,234,.75);
  color:var(--color-cloud);
}
.btn-ghost:hover{
  background:rgba(244,241,234,.12);
  color:#fff;
  border-color:#fff;
}
.btn i{pointer-events:none}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--color-accent-azure);
  outline-offset:3px;
}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(244,241,234,.85);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(219,214,203,.62);
}
.header-inner{
  max-width:1240px;
  margin:0 auto;
  padding:12px 24px 6px;
  display:grid;
  grid-template-columns:minmax(190px,.8fr) minmax(320px,1.5fr) auto;
  grid-template-areas:"brand search cta" "nav nav nav";
  gap:4px 26px;
  align-items:center;
}
.brand-lockup{grid-area:brand;display:inline-flex;align-items:center;gap:10px;color:var(--color-ink)}
.brand-lockup:hover{color:var(--color-ink)}
.brand-mark{
  width:42px;
  height:42px;
  border-radius:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--color-ink);
  color:var(--color-cloud);
  font-size:20px;
  box-shadow:0 6px 16px rgba(26,46,53,.14);
}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.3px;line-height:1.16;display:block}
.brand-tag{font-size:11px;color:var(--soft-text);letter-spacing:1.4px;font-weight:500}
.site-nav{
  grid-area:nav;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:26px;
  border-top:1px dashed rgba(42,127,139,.28);
  margin-top:4px;
  padding-top:6px;
  flex-wrap:wrap;
}
.nav-link{
  position:relative;
  padding:6px 2px;
  color:#274049;
  font-weight:600;
  font-size:16px;
  display:inline-flex;
  align-items:center;
  gap:5px;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-1px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--color-accent-azure);
  transition:width .2s ease;
}
.nav-link:hover{color:var(--color-accent-azure)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--color-accent-azure)}
.nav-link.is-active::after{width:100%}
.header-search-form{
  grid-area:search;
  display:flex;
  align-items:center;
  height:44px;
  background:#fff;
  border:1px solid rgba(42,127,139,.28);
  border-radius:40px;
  padding-left:16px;
  padding-right:6px;
  box-shadow:0 4px 14px rgba(26,46,53,.05);
  transition:border-color .2s ease,box-shadow .2s ease;
  min-width:0;
}
.header-search-form:focus-within{
  border-color:var(--color-accent-azure);
  box-shadow:0 0 0 3px rgba(42,127,139,.12);
}
.header-search-form .search-icon{color:var(--color-accent-azure);font-size:15px;margin-right:10px;flex:0 0 auto}
.header-search-form input[type="search"]{
  flex:1 1 auto;
  min-width:0;
  border:0;
  background:transparent;
  color:var(--color-ink);
  font-size:15px;
  height:40px;
  padding:0;
  box-shadow:none;
  outline:none;
}
.header-search-form input[type="search"]::placeholder{color:#718287;opacity:1}
.search-btn{
  flex:0 0 auto;
  width:32px;
  height:32px;
  border-radius:50%;
  border:0;
  background:var(--color-accent-azure);
  color:#fff;
  font-size:13px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:background .2s ease,transform .2s ease;
}
.search-btn:hover{background:#1D6872}
.header-cta{grid-area:cta;justify-self:end;min-height:44px;padding:0 20px;font-size:15px}
.nav-cta-mobile{display:none}
.nav-burger{
  display:none;
  grid-area:burger;
  width:44px;
  height:44px;
  border:1px solid var(--color-mist-line);
  background:var(--color-surface);
  color:var(--color-ink);
  border-radius:8px;
  align-items:center;
  justify-content:center;
  font-size:20px;
}

/* Page Banner */
.page-banner{
  position:relative;
  border-bottom:1px solid rgba(219,214,203,.5);
  background-image:linear-gradient(105deg,rgba(244,241,234,.98) 0%,rgba(244,241,234,.9) 48%,rgba(42,127,139,.14) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.page-banner-inner{padding:clamp(54px,8vw,100px) 0 64px}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--soft-text);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--soft-text)}
.breadcrumb a:hover{color:var(--color-accent-azure)}
.breadcrumb .sep{color:#A8A29A}
.breadcrumb [aria-current="page"]{color:var(--color-ink);font-weight:600}
.banner-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(42,127,139,.1);
  border:1px solid rgba(42,127,139,.2);
  color:var(--color-accent-azure);
  font-weight:700;
  font-size:14px;
  padding:6px 14px;
  border-radius:999px;
  margin-bottom:18px;
}
.page-banner h1{
  font-size:clamp(32px,5vw,46px);
  max-width:740px;
  margin-bottom:16px;
  letter-spacing:1px;
}
.banner-subtitle{
  font-size:clamp(16px,1.5vw,19px);
  color:var(--soft-text);
  max-width:620px;
  margin-bottom:28px;
}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px}

/* Anchor Bar */
.anchor-bar{
  background:rgba(255,255,255,.58);
  border-bottom:1px solid rgba(219,214,203,.7);
  padding:15px 0;
}
.anchor-inner{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px}
.anchor-caption{
  font-size:14px;
  font-weight:800;
  color:var(--color-ink);
  border-right:1px solid var(--color-mist-line);
  padding-right:14px;
  margin-right:2px;
}
.anchor-inner a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 14px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:14px;
  font-weight:600;
  color:#3D535B;
}
.anchor-inner a:hover{
  background:rgba(42,127,139,.1);
  color:var(--color-accent-azure);
  border-color:rgba(42,127,139,.18);
}

/* Overview */
.overview-module .visual-frame{aspect-ratio:4/3}
.overview-copy .lead{
  font-size:18px;
  color:var(--color-ink);
  font-weight:600;
  margin-bottom:16px;
}
.overview-copy p{color:#3F5158}
.overview-copy ul{margin-top:20px}
.overview-copy li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:11px 0;
  border-bottom:1px dashed rgba(219,214,203,.7);
  color:#2F444C;
}
.overview-copy li:last-child{border-bottom:0}
.overview-copy li i{color:var(--color-accent-verdigris);margin-top:4px}
.overview-copy li strong{display:block;font-size:16px}
.overview-copy li span{font-size:15px;color:var(--soft-text)}

/* Capability */
.capability-module{
  background-image:linear-gradient(180deg,var(--color-surface),rgba(79,157,141,.04));
  border-top:1px solid rgba(219,214,203,.55);
  border-bottom:1px solid rgba(219,214,203,.55);
}
.capability-module .visual-frame{aspect-ratio:5/4}
.capability-list{
  background:var(--color-surface);
  border:1px solid var(--color-mist-line);
  border-radius:14px;
  padding:10px;
  box-shadow:var(--shadow-sm);
}
.capability-list li{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:14px 12px;
  border-radius:8px;
  transition:background .2s ease;
}
.capability-list li:hover{background:rgba(42,127,139,.05)}
.capability-list li+li{border-top:1px dashed rgba(219,214,203,.66)}
.capability-list .capicon{
  flex:0 0 auto;
  width:38px;
  height:38px;
  border-radius:10px;
  background:rgba(42,127,139,.1);
  color:var(--color-accent-azure);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
}
.capability-list li strong{display:block;font-size:16px;margin-bottom:2px}
.capability-list li span{color:var(--soft-text);font-size:15px}

/* Compatibility */
.compat-module .compat-text{margin-bottom:26px}
.table-scroll{overflow-x:auto;border-radius:10px;border:1px solid var(--color-mist-line);box-shadow:var(--shadow-sm)}
.compat-table{
  width:100%;
  border-collapse:collapse;
  background:#fff;
  min-width:620px;
}
.compat-table th{
  background:#233D44;
  color:#F4F1EA;
  text-align:left;
  padding:14px 18px;
  font-size:15px;
  font-weight:700;
  letter-spacing:.3px;
}
.compat-table td{
  padding:16px 18px;
  border-top:1px solid var(--color-mist-line);
  font-size:15px;
  color:#33484F;
  vertical-align:top;
}
.compat-table td strong{display:block;font-size:16px;color:var(--color-ink);margin-bottom:3px}
.compat-table tr:nth-child(even) td{background:rgba(244,241,234,.35)}
.compat-note{
  margin-top:20px;
  display:inline-flex;
  align-items:center;
  gap:10px;
  background:rgba(229,180,84,.12);
  border:1px dashed rgba(229,180,84,.65);
  padding:10px 18px;
  border-radius:10px;
  color:#604C19;
  font-size:14px;
  font-weight:500;
}

/* Steps */
.steps-band{
  background:rgba(79,157,141,.08);
  border-top:1px solid rgba(79,157,141,.14);
  border-bottom:1px solid rgba(79,157,141,.1);
}
.steps-grid{margin-top:40px}
.step-card{
  position:relative;
  background:#fff;
  border:1px solid var(--color-mist-line);
  border-radius:12px;
  padding:26px 22px;
  height:100%;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-card:hover{
  transform:translateY(-4px);
  box-shadow:0 12px 28px rgba(42,127,139,.1);
  border-color:rgba(42,127,139,.5);
}
.step-number{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:52px;
  height:52px;
  border-radius:12px;
  background:var(--color-ink);
  color:var(--color-cloud);
  font-size:20px;
  font-weight:800;
  margin-bottom:20px;
  box-shadow:0 8px 18px rgba(26,46,53,.18);
}
.step-card:nth-child(2) .step-number{background:var(--color-accent-azure)}
.step-card:nth-child(3) .step-number{background:var(--color-accent-verdigris)}
.step-card:nth-child(4) .step-number{background:var(--color-cta-coral)}
.step-card h3{font-size:18px;margin-bottom:8px}
.step-card p{color:var(--soft-text);font-size:15px;margin-bottom:0}
@media screen and (min-width:1024px){
  .steps-grid .cell:not(:last-child) .step-card::after{
    content:"\2192";
    position:absolute;
    top:42px;
    right:-21px;
    z-index:3;
    color:var(--color-accent-azure);
    font-size:22px;
    font-weight:800;
    background:rgba(244,241,234,.9);
    border-radius:50%;
    width:28px;
    height:28px;
    display:flex;
    align-items:center;
    justify-content:center;
    box-shadow:0 4px 10px rgba(26,46,53,.1);
  }
}

/* FAQ */
.faq-module .section-head{max-width:760px}
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  background:#fff;
  border:1px solid var(--color-mist-line);
  border-radius:10px;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.is-open{
  border-color:rgba(42,127,139,.45);
  box-shadow:0 6px 22px rgba(42,127,139,.08);
}
.faq-question{
  width:100%;
  background:transparent;
  border:0;
  display:flex;
  align-items:center;
  gap:14px;
  padding:18px 20px;
  text-align:left;
  color:var(--color-ink);
  font-weight:700;
  font-size:16px;
}
.faq-switch{
  flex:0 0 auto;
  width:26px;
  height:26px;
  border-radius:50%;
  background:rgba(42,127,139,.1);
  color:var(--color-accent-azure);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  transition:transform .22s ease,background .22s ease;
}
.faq-item.is-open .faq-switch{transform:rotate(45deg);background:var(--color-accent-azure);color:#fff}
.faq-answer{display:none;padding:0 20px 20px}
.faq-answer-inner{
  border-top:1px dashed var(--color-mist-line);
  padding-top:14px;
  color:var(--soft-text);
  font-size:15px;
}
.faq-item.is-open .faq-answer{display:block}
.faq-answer p:last-child{margin-bottom:0}

/* CTA */
.cta-section{
  position:relative;
  padding:clamp(60px,8vw,90px) 0;
  background-color:#1A3038;
  background-image:linear-gradient(120deg,rgba(18,38,44,.94),rgba(18,38,44,.78)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
  color:var(--color-cloud);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap}
.cta-title{color:#fff;font-size:clamp(24px,3vw,34px);margin-bottom:12px;max-width:620px}
.cta-lead{color:rgba(244,241,234,.82);font-size:17px;max-width:560px;margin-bottom:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto}
.cta-kicker{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:700;
  color:var(--color-warm-amber);
  margin-bottom:12px;
  letter-spacing:1px;
}

/* Footer */
.site-footer{
  background:#14262B;
  color:rgba(244,241,234,.82);
}
.footer-rule{height:4px;background:linear-gradient(90deg,rgba(42,127,139,.95) 0%,rgba(42,127,139,.35) 60%,rgba(42,127,139,0) 100%)}
.footer-main{padding:64px 0 40px}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
  color:#F4F1EA;
}
.footer-brand .brand-mark{background:var(--color-accent-azure);color:#fff}
.footer-brand .brand-name{color:#F4F1EA}
.footer-brand .brand-tag{color:rgba(244,241,234,.55)}
.footer-about-text{color:rgba(244,241,234,.68);font-size:15px}
.footer-quote{
  border-left:3px solid var(--color-accent-verdigris);
  padding-left:14px;
  margin-top:20px;
  color:rgba(244,241,234,.58);
  font-size:14px;
  font-style:normal;
}
.footer-title{
  font-size:16px;
  color:#F4F1EA;
  margin-bottom:18px;
  padding-bottom:10px;
  border-bottom:1px solid rgba(244,241,234,.12);
  letter-spacing:.4px;
}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(244,241,234,.7)}
.footer-links a:hover{color:#fff;padding-left:4px}
.footer-contact{color:rgba(244,241,234,.68);font-size:15px}
.footer-contact li{display:flex;gap:10px;margin-bottom:10px}
.footer-contact i{color:var(--color-accent-verdigris);margin-top:4px}
.footer-bottom{
  border-top:1px solid rgba(244,241,234,.12);
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  color:rgba(244,241,234,.48);
  font-size:14px;
}
.footer-bottom p{margin:0}

noscript .faq-answer{display:block!important}

@media (max-width:1024px){
  .header-inner{
    grid-template-columns:minmax(170px,.8fr) minmax(240px,1fr) auto;
    gap:4px 18px;
  }
  .header-search-form input[type="search"]{font-size:14px}
  .nav-link{gap:3px}
}
@media (max-width:900px){
  .site-header{position:sticky}
  .header-inner{
    grid-template-columns:minmax(0,1fr) auto;
    grid-template-areas:"brand burger" "search search" "nav nav";
    row-gap:10px;
    padding:12px 18px 12px;
  }
  .brand-lockup{grid-area:brand}
  .header-search-form{grid-area:search;width:100%;max-width:none}
  .header-cta{display:none}
  .nav-burger{display:inline-flex}
  .site-nav{
    grid-area:nav;
    display:none;
    background:#fff;
    border:1px solid var(--color-mist-line);
    border-radius:12px;
    padding:10px;
    box-shadow:0 14px 30px rgba(26,46,53,.08);
    flex-direction:column;
    align-items:stretch;
    gap:2px;
  }
  .site-nav.is-open{display:flex}
  .site-nav .nav-link{
    padding:12px 12px;
    border-radius:8px;
    color:var(--color-ink);
  }
  .site-nav .nav-link:hover{background:rgba(42,127,139,.08);color:var(--color-accent-azure)}
  .site-nav .nav-link.is-active{background:rgba(42,127,139,.08)}
  .site-nav .nav-link::after{display:none}
  .nav-cta-mobile{
    display:flex;
    margin-top:10px;
    background:var(--color-cta-coral);
    color:#fff;
    border:0;
  }
  .nav-cta-mobile:hover{background:#A83F2B;color:#fff}
  .module{padding:56px 0}
  .page-banner-inner{padding:54px 0 46px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:640px){
  .grid-container{padding-left:18px;padding-right:18px}
  .brand-name{font-size:16px}
  .brand-mark{width:38px;height:38px;font-size:17px;border-radius:10px}
  .brand-tag{display:none}
  .header-search-form{height:42px}
  .page-banner h1{font-size:30px;line-height:1.25}
  .banner-actions .btn{width:100%}
  .section-head h2{font-size:23px}
  .visual-frame{aspect-ratio:4/3}
  .faq-question{font-size:15px;padding:15px 14px}
  .faq-answer{padding:0 14px 16px}
  .footer-main{padding:44px 0 28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .step-card .step-number{width:44px;height:44px;font-size:18px}
}

/* roulang page: category3 */
:root{
  --color-cloud:#F4F1EA;
  --color-surface:#FFFFFF;
  --color-ink:#1A2E35;
  --color-ink-soft:#3E5158;
  --color-muted:#5F6F74;
  --color-accent:#2A7F8B;
  --color-accent-deep:#1D5A66;
  --color-verdigris:#4F9D8D;
  --color-coral:#E76F51;
  --color-coral-deep:#D15E42;
  --color-warm:#E5B454;
  --color-mist:#DBD6CB;
  --radius:8px;
  --radius-lg:16px;
  --shadow-sm:0 2px 8px rgba(26,46,53,.05);
  --shadow-md:0 8px 24px rgba(42,127,139,.10);
  --font-stack:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  --space-section:clamp(64px,8vw,110px);
}
html{scroll-behavior:smooth}
*{box-sizing:border-box}
body{margin:0;background:var(--color-cloud);color:var(--color-ink);font-family:var(--font-stack);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:var(--color-accent);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--color-accent-deep)}
p{margin-top:0;margin-bottom:1rem}
figure{margin:0}
.container{max-width:1200px;margin-inline:auto;padding-inline:20px}
.container-lg{max-width:1260px;margin-inline:auto;padding-inline:20px}
::selection{background:rgba(42,127,139,.16)}
:focus-visible{outline:2px solid var(--color-accent);outline-offset:3px;border-radius:4px}
.grid-x{max-width:none}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:80;background:rgba(244,241,234,.88);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid rgba(219,214,203,.74);transition:box-shadow .25s ease}
.header-inner{display:flex;align-items:center;gap:24px;max-width:1320px;margin:0 auto;padding:14px 28px;flex-wrap:wrap}
.brand-lockup{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{width:40px;height:40px;display:grid;place-items:center;background:linear-gradient(145deg,var(--color-accent),var(--color-verdigris));color:#fff;border-radius:11px;font-size:19px;box-shadow:0 6px 16px rgba(42,127,139,.22)}
.brand-name{font-size:20px;font-weight:700;letter-spacing:.06em;color:var(--color-ink);white-space:nowrap}
.brand-tag{display:block;font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--color-verdigris);margin-top:2px;line-height:1}
.site-nav{display:flex;align-items:center;gap:4px;order:3;width:100%;margin-top:4px;overflow-x:auto;scrollbar-width:none}
.site-nav::-webkit-scrollbar{display:none}
.nav-link{padding:7px 13px;border-radius:999px;font-size:15px;font-weight:500;color:var(--color-ink);white-space:nowrap;transition:background .2s,color .2s}
.nav-link:hover{background:rgba(42,127,139,.10);color:var(--color-accent)}
.nav-link.is-active{background:rgba(42,127,139,.13);color:var(--color-accent-deep);font-weight:600}
.header-search-form{position:relative;flex:1 1 auto;max-width:400px;margin-left:auto;display:flex;align-items:center}
.header-search-form .search-icon{position:absolute;left:17px;color:var(--color-muted);font-size:14px;pointer-events:none}
.header-search-form input[type="search"]{width:100%;height:44px;border:1px solid var(--color-mist);border-radius:22px;padding:0 48px 0 42px;background:var(--color-surface);font-size:14px;color:var(--color-ink);transition:border .25s,box-shadow .25s}
.header-search-form input[type="search"]::placeholder{color:#9B948A}
.header-search-form input[type="search"]:focus{border-color:var(--color-accent);box-shadow:0 0 0 3px rgba(42,127,139,.14);outline:none}
.header-search-form .search-btn{position:absolute;right:5px;width:34px;height:34px;border:0;border-radius:50%;background:var(--color-accent);color:#fff;display:grid;place-items:center;cursor:pointer;transition:background .25s}
.header-search-form .search-btn:hover{background:var(--color-accent-deep)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:inherit;font-weight:600;border-radius:6px;border:1px solid transparent;cursor:pointer;transition:all .25s ease;text-decoration:none;font-size:15px;line-height:1}
.btn-coral{background:var(--color-coral);color:#fff;padding:12px 22px;min-height:48px;box-shadow:0 4px 14px rgba(231,111,81,.22)}
.btn-coral:hover{background:var(--color-coral-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(231,111,81,.28)}
.btn-accent-outline{background:transparent;color:var(--color-accent);border-color:var(--color-accent);padding:11px 22px}
.btn-accent-outline:hover{background:var(--color-accent);color:#fff}
.btn-white-outline{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55);padding:12px 26px}
.btn-white-outline:hover{border-color:#fff;background:rgba(255,255,255,.1);color:#fff}
.header-cta{padding:11px 22px;min-height:42px;flex:0 0 auto}
.nav-cta-mobile{display:none}
.nav-burger{display:none;width:44px;height:44px;border:1px solid var(--color-mist);background:var(--color-surface);color:var(--color-ink);font-size:20px;border-radius:8px;cursor:pointer;align-items:center;justify-content:center}
.page-main{padding-top:40px}

/* Hero banner */
.banner{position:relative;background:linear-gradient(103deg,rgba(13,37,45,.92),rgba(20,57,68,.82)),url(/assets/images/backpic/back-3.webp) center/cover;color:#fff;padding:72px 0 60px;margin-top:8px}
.banner::after{content:"";position:absolute;inset:auto 0 -1px 0;height:48px;background:var(--color-cloud);border-radius:100% 100% 0 0/22px 22px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;gap:6px;list-style:none;padding:0;margin:0 0 16px;font-size:14px;color:#BFD3D6}
.breadcrumb a{color:#DFE9EA}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{margin:0 5px;opacity:.5}
.page-title{font-size:clamp(30px,5vw,48px);font-weight:700;line-height:1.18;letter-spacing:1.5px;margin:0 0 12px;color:#fff}
.banner-lead{max-width:680px;font-size:17px;line-height:1.85;color:#E8F0F1;margin:0}

/* ===== Modules / layout ===== */
.section-white{background:var(--color-surface)}
.section-cloud{background:var(--color-cloud)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:12px;font-size:13px;letter-spacing:.08em;font-weight:600;color:var(--color-accent);text-transform:uppercase}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--color-verdigris);border-radius:2px}
.section-heading{margin:10px 0 14px;font-size:clamp(24px,4vw,36px);font-weight:700;line-height:1.3;letter-spacing:.02em;color:var(--color-ink)}
@media(max-width:639px){.section-heading{font-size:26px}}
.head-tip{margin-bottom:34px;font-size:16px;color:var(--color-muted)}

/* Section intro two-column */
.feature-split{padding:var(--space-section) 0}
.white-card{background:var(--color-surface);border:1px solid var(--color-mist);box-shadow:var(--shadow-sm);border-radius:var(--radius-lg);padding:30px;transition:border-color .25s ease, box-shadow .25s ease, transform .25s ease}
.white-card:hover{border-color:var(--color-accent);box-shadow:var(--shadow-md);transform:translateY(-2px)}

.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:stretch}
.ck-list{list-style:none;padding:0;margin:16px 0 0}
.ck-list li{display:flex;gap:12px;padding:14px 0;align-items:flex-start}
.ck-list .fa-circle-check{color:var(--color-verdigris);font-size:19px;flex:0 0 auto;margin-top:2px}
.ck-list strong{display:block;color:var(--color-ink);font-weight:600}
.ck-list span{font-size:15px;color:var(--color-muted)}

/* Assurance strip */
.assure-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.assure-item{background:var(--color-surface);border-radius:var(--radius-lg);padding:30px 28px;border:1px solid var(--color-mist);position:relative;overflow:hidden;box-shadow:var(--shadow-sm)}
.assure-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--color-accent);opacity:0;transition:opacity .25s}
.assure-item:hover{box-shadow:var(--shadow-md)}
.assure-item:hover::before{opacity:1}
.assure-item .num{font-size:13px;color:var(--color-warm);font-weight:700;letter-spacing:.2em;margin-bottom:14px}
.assure-item h3{font-size:20px;font-weight:700;margin:0 0 14px}
.assure-item p{color:var(--color-muted);margin:0;font-size:15px;line-height:1.85}

/* Agreement / legal-like panels */
.policy-wrap{padding:var(--space-section) 0}
.policy-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:34px}
.policy-nav{position:sticky;top:100px;align-self:start;background:var(--color-surface);border:1px solid var(--color-mist);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm)}
.policy-nav a{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:8px;color:var(--color-ink);transition:none}
.policy-nav a:hover{background:rgba(42,127,139,.10)}
.policy-item{background:var(--color-surface);border:1px solid var(--color-mist);border-radius:var(--radius-lg);padding:30px;margin-bottom:22px;box-shadow:var(--shadow-sm)}
.policy-item h3{display:flex;gap:12px;align-items:flex-start;margin:0 0 16px;font-size:20px}
.policy-item h3 i{color:var(--color-accent);font-size:22px;margin-top:1px}
.policy-item p,.policy-item li{color:var(--color-ink-soft)}
.policy-item .meta-light{color:var(--color-muted);font-size:14px;margin-top:10px}

/* question / broad FAQ */
.faq-section{background:var(--color-cloud)}
.accordion-custom{border-top:1px solid var(--color-mist)}
.accordion-item{border:1px solid var(--color-mist);background:var(--color-surface);border-radius:12px;margin-bottom:16px;overflow:hidden;box-shadow:var(--shadow-sm)}
.accordion-item h3{margin:0}
.accordion-trigger{width:100%;display:flex;align-items:center;gap:14px;background:transparent;border:0;padding:20px 22px;font-family:inherit;font-size:17px;font-weight:600;color:var(--color-ink);text-align:left;cursor:pointer;transition:background .2s}
.accordion-trigger:hover{background:rgba(42,127,139,.05)}
.accordion-trigger .ai{width:28px;height:28px;border-radius:50%;border:1px solid var(--color-mist);display:grid;place-items:center;flex:0 0 auto;color:var(--color-accent);transition:transform .3s,background .3s,color .3s,border-color .3s;font-size:14px}
.accordion-item.is-active .ai{transform:rotate(45deg);background:var(--color-accent);color:#fff;border-color:var(--color-accent)}
.accordion-item .answer-body{max-height:0;overflow:hidden;transition:max-height .35s ease}
.accordion-item.is-active .answer-body{max-height:800px}
.accordion-body{padding:0 22px 18px;max-width:735px;color:var(--color-muted);line-height:1.85}
.accordion-body strong{color:var(--color-ink)}

/* simple feature grid (anti-card-homoge) */
.simple-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 28px}
.simple-item{padding-left:28px;position:relative}
.simple-item:before{content:"\f0da";font:900 14px "Font Awesome 6 Free";color:var(--color-warm);position:absolute;left:4px;top:2px}
.simple-item strong{display:block;margin-bottom:4px}

/* CTA area */
.cta-panel{position:relative;background:linear-gradient(180deg,rgba(17,45,53,.93),rgba(17,45,53,.84)),url(/assets/images/backpic/back-3.webp) center/cover;border-radius:24px;padding:clamp(40px,6vw,76px);text-align:center;color:#fff;overflow:hidden}
.cta-panel h2{font-size:clamp(26px,4.4vw,42px);line-height:1.25;margin:0 0 16px;color:#fff}
.cta-panel p{max-width:620px;margin:0 auto 30px;color:#D5E5E7}

/* Footer */
.footer-top-grad{height:4px;background:linear-gradient(90deg,rgba(42,127,139,.9),rgba(79,157,141,.35),transparent)}
.site-footer{background:#132E35;color:#CFD9DB;padding-top:72px}
.footer-grid{display:grid;grid-template-columns:1.15fr .85fr .9fr;gap:44px;padding-bottom:52px}
.footer-title{color:#fff;font-size:17px;font-weight:600;margin:0 0 22px;position:relative;padding-bottom:10px}
.footer-title::after{content:"";position:absolute;left:0;bottom:0;width:30px;height:2px;background:var(--color-verdigris)}
.footer-brand .brand-lockup{color:#fff}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-name{color:#fff}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:#AEBFC3}
.footer-tagline{font-size:13px;color:var(--color-verdigris);letter-spacing:.2em;text-transform:uppercase;margin:10px 0 0}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-links a{color:#C7D5D8}
.footer-links a:hover{color:#fff;padding-left:5px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:24px 0;font-size:13px;color:#8FA6AC;text-align:center}
.icp-hint{font-size:13px;color:#8FA6AC;letter-spacing:.1em}

/* =========== responsive breakpoints =========== */
@media(max-width:1024px){
.intro-grid,.policy-grid{grid-template-columns:1fr}
.policy-nav{position:static;display:flex;gap:10px;flex-wrap:wrap;border:0;background:transparent;padding:0;box-shadow:none}
.policy-nav a{background:var(--color-surface);border:1px solid var(--color-mist);flex:0 0 auto}
.footer-grid{grid-template-columns:1fr 1fr;gap:36px}
.header-search-form{max-width:240px}
}
@media(max-width:840px){
.header-inner{gap:14px;padding:12px 18px}
.header-search-form{order:3;max-width:100%;width:100%;margin-top:6px}
.site-header .header-cta{display:none}
.header-cta-mobile,.nav-cta-mobile{display:inline-flex}
.assure-grid{grid-template-columns:1fr 1fr}
.simple-grid{grid-template-columns:1fr}
.brand-name{font-size:18px}
.brand-tag{display:none}
}
@media(max-width:640px){
.site-header{position:relative}
.header-inner{padding:12px 16px}
.brand-name{font-size:16px;white-space:nowrap;max-width:135px;overflow:hidden;text-overflow:ellipsis}
.site-nav{order:4;display:none;width:calc(100% + 32px);margin:8px -16px -12px;padding:10px 16px;background:var(--color-surface);border-top:1px solid var(--color-mist)}
.nav-cta-mobile{width:100%;justify-content:center}
.site-nav.show-mobile{display:flex}
.site-nav .nav-cta-mobile{display:flex}
.site-nav .nav-link{flex:1 0 auto}
.site-header .header-cta{display:none}
.header-search-form{order:3;max-width:100%;width:100%;margin-top:2px}
.nav-burger{display:flex}
.assure-grid,.simple-grid,.footer-grid{grid-template-columns:1fr}
.page-title{font-size:30px}
.policy-item{padding:24px}
.white-card{padding:22px}
.banner{background-position:62% 60%}
.cta-panel{border-radius:16px;padding:44px 20px}
}

@media(max-width:480px){
.container{padding-inline:16px}
.cta-panel p{font-size:15px}
.cta-panel .btn-group{display:flex;flex-direction:column;gap:12px}
.cta-panel .btn-group .btn{width:100%}
.intro-grid .white-card{padding:20px}
.accordion-body,.accordion-trigger{padding-left:16px;padding-right:16px}
.brand-mark{width:36px;height:36px}
.brand-name{font-size:15.5px}
.header-search-form input[type="search"]{height:40px}
.header-search-form .search-btn{height:30px;width:30px}
}

/* roulang page: category2 */
:root {
  --color-cloud: #F4F1EA;
  --color-cloud-deep: #EAE6DC;
  --color-surface: #FFFFFF;
  --color-ink: #1A2E35;
  --color-ink-soft: #445B63;
  --color-accent-azure: #2A7F8B;
  --color-accent-deep: #216B76;
  --color-verdigris: #4F9D8D;
  --color-coral: #E76F51;
  --color-coral-hover: #CB5B40;
  --color-amber: #E5B454;
  --color-mist: #DBD6CB;
  --color-mist-light: #EFEAE1;
  --shadow-card: 0 2px 8px rgba(26, 46, 53, 0.05);
  --shadow-float: 0 14px 34px rgba(42, 127, 139, 0.13);
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-pill: 999px;
  --font-cn: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 0.25s ease;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--color-cloud);
  color: var(--color-ink);
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

body,
button,
input,
select,
textarea {
  font-family: var(--font-cn);
}

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

a {
  color: var(--color-accent-azure);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-accent-deep);
}

ul,
ol,
li {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  line-height: 1.3;
  color: var(--color-ink);
  text-wrap: balance;
}

h1 {
  font-size: clamp(30px, 4.8vw, 46px);
  font-weight: 700;
  letter-spacing: 1.2px;
}

h2 {
  font-size: clamp(23px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: 0.5px;
}

h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.45;
}

p {
  text-wrap: pretty;
}

:focus-visible {
  outline: 3px solid rgba(42, 127, 139, 0.4);
  outline-offset: 3px;
  border-radius: 6px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

.section {
  padding-top: 88px;
  padding-bottom: 88px;
}

.section--soft {
  background: var(--color-cloud-deep);
}

.section--plain {
  background: var(--color-cloud);
}

section[id],
div[id] {
  scroll-margin-top: 96px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-accent-azure);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.eyebrow i {
  color: var(--color-verdigris);
}

.section-head,
.block-head {
  max-width: 860px;
  margin-bottom: 44px;
}

.section-head p,
.block-head p {
  color: var(--color-ink-soft);
  font-size: 17px;
  margin-top: 14px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 50px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.btn i {
  font-size: 14px;
}

.btn-coral {
  background: var(--color-coral);
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(231, 111, 81, 0.22);
}

.btn-coral:hover {
  background: var(--color-coral-hover);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(231, 111, 81, 0.28);
}

.btn-outline {
  border: 1px solid var(--color-accent-azure);
  color: var(--color-accent-azure);
  background: transparent;
}

.btn-outline:hover {
  background: var(--color-accent-azure);
  color: #ffffff;
  border-color: var(--color-accent-azure);
}

.btn-ghost-light {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.42);
  color: #ffffff;
  backdrop-filter: blur(6px);
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.9);
}

.nav-cta-mobile {
  display: none;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(244, 241, 234, 0.86);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(219, 214, 203, 0.9);
}

.header-inner {
  display: grid;
  grid-template-columns: auto auto minmax(240px, 380px) auto;
  align-items: center;
  gap: 16px;
  max-width: 1320px;
  margin: 0 auto;
  padding: 10px 20px;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-right: 8px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--color-accent-azure);
  color: #ffffff;
  border-radius: 10px;
  font-size: 18px;
  box-shadow: 0 6px 18px rgba(42, 127, 139, 0.2);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: 0.4px;
}

.brand-tag {
  font-size: 11px;
  color: var(--color-ink-soft);
  letter-spacing: 0.6px;
  margin-top: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 13px;
  border-radius: var(--radius-pill);
  color: var(--color-ink);
  font-size: 15px;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}

.nav-link:hover {
  background: rgba(42, 127, 139, 0.1);
  color: var(--color-accent-azure);
}

.nav-link.is-active {
  background: var(--color-accent-azure);
  color: #ffffff;
  font-weight: 600;
}

.nav-link.is-active:hover {
  background: var(--color-accent-deep);
  color: #ffffff;
}

.header-search-form {
  position: relative;
  width: 100%;
  max-width: 440px;
  justify-self: end;
}

.header-search-form .search-icon {
  position: absolute;
  top: 50%;
  left: 16px;
  transform: translateY(-50%);
  color: var(--color-ink-soft);
  font-size: 15px;
  pointer-events: none;
}

.header-search-form input[type="search"] {
  width: 100%;
  height: 44px;
  border: 1px solid var(--color-mist);
  border-radius: 32px;
  background: var(--color-surface);
  padding: 0 48px 0 42px;
  font-size: 14px;
  color: var(--color-ink);
  box-shadow: inset 0 1px 3px rgba(26, 46, 53, 0.02);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.header-search-form input[type="search"]::placeholder {
  color: #8B938F;
  opacity: 1;
}

.header-search-form input[type="search"]:focus {
  outline: none;
  border-color: var(--color-accent-azure);
  box-shadow: 0 0 0 3px rgba(42, 127, 139, 0.13);
}

.header-search-form .search-btn {
  position: absolute;
  top: 50%;
  right: 5px;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 50%;
  background: var(--color-accent-azure);
  color: #ffffff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  transition: background var(--transition);
}

.header-search-form .search-btn:hover {
  background: var(--color-accent-deep);
}

.header-cta {
  justify-self: end;
  height: 44px;
  padding: 0 18px;
  font-size: 15px;
}

.nav-burger {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-mist);
  border-radius: 8px;
  background: var(--color-surface);
  color: var(--color-ink);
  font-size: 18px;
  cursor: pointer;
}

.nav-burger:hover {
  color: var(--color-accent-azure);
  border-color: var(--color-accent-azure);
}

/* 分类 Hero */
.category-hero {
  position: relative;
  background:
    linear-gradient(100deg, rgba(19, 50, 56, 0.96) 0%, rgba(24, 62, 68, 0.9) 38%, rgba(42, 127, 139, 0.68) 100%),
    url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  color: #ffffff;
  padding: 64px 0 70px;
  overflow: hidden;
}

.category-hero::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -140px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(229, 180, 84, 0.18) 0%, rgba(229, 180, 84, 0) 70%);
  pointer-events: none;
}

.category-hero .container {
  position: relative;
  z-index: 2;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  margin-bottom: 30px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.84);
}

.breadcrumb a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.cat-hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  align-items: center;
  gap: 48px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  padding: 6px 15px;
  margin-bottom: 20px;
}

.hero-eyebrow i {
  color: var(--color-amber);
}

.category-hero h1 {
  color: #ffffff;
  margin-bottom: 16px;
}

.hero-lead {
  max-width: 620px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 17px;
  line-height: 1.9;
  margin-bottom: 26px;
}

.hero-ctas {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 26px;
}

.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.24);
  padding-top: 22px;
  margin-top: 8px;
}

.trust-strip > div {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 144px;
}

.trust-strip i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
  color: var(--color-amber);
  font-size: 14px;
}

.trust-strip em {
  display: block;
  font-style: normal;
  color: #ffffff;
  font-weight: 600;
  line-height: 1.4;
}

.trust-strip span {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.4;
}

.hero-visual-wrap {
  position: relative;
}

.hero-browser {
  background: #ffffff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 22px 60px rgba(13, 39, 44, 0.3);
  transform: rotate(1.2deg);
}

.hero-browser-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 14px;
  background: #f0ece4;
}

.hero-browser-bar i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #dccfc0;
}

.hero-browser-bar i:nth-child(2) {
  background: var(--color-amber);
}

.hero-browser-bar i:nth-child(3) {
  background: var(--color-verdigris);
}

.hero-browser-body {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
  background: var(--color-cloud);
}

.hero-browser-body img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-float-chip {
  position: absolute;
  left: -14px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  color: var(--color-ink);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-float);
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid rgba(219, 214, 203, 0.7);
}

.hero-float-chip i {
  color: var(--color-verdigris);
}

.hero-float-demo {
  top: 18px;
}

.hero-float-mobile {
  bottom: -14px;
  left: -6px;
}

.hero-mobile-note {
  position: absolute;
  right: -10px;
  bottom: 10px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-ink);
  color: #ffffff;
  border-radius: 30px;
  padding: 8px 14px;
  font-size: 13px;
  box-shadow: 0 8px 20px rgba(26, 46, 53, 0.22);
}

.hero-mobile-note i {
  color: var(--color-amber);
}

/* 锚点小导航 */
.anchor-tabs {
  margin-top: -24px;
  position: relative;
  z-index: 5;
}

.anchor-row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-mist-light);
  border-radius: var(--radius-lg);
  padding: 12px 16px;
  box-shadow: var(--shadow-card);
}

.anchor-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 38px;
  border-radius: 24px;
  padding: 0 14px;
  color: var(--color-ink-soft);
  font-size: 14px;
  font-weight: 600;
  background: transparent;
  border: 1px solid transparent;
}

.anchor-link i {
  color: var(--color-verdigris);
}

.anchor-link:hover {
  color: var(--color-accent-azure);
  background: rgba(42, 127, 139, 0.08);
}

/* 用法脉络 */
.overview-block {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: 56px;
}

.overview-illustration {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.overview-illustration::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(165deg, rgba(244, 241, 234, 0.12), rgba(26, 46, 53, 0.4));
  pointer-events: none;
}

.overview-illustration img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 320px;
}

.overview-text {
  padding: 12px 0;
}

.overview-text h2 {
  margin: 8px 0 16px;
}

.overview-text > p {
  color: var(--color-ink-soft);
  margin-bottom: 26px;
  font-size: 17px;
}

.option-list li {
  position: relative;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px dashed var(--color-mist);
}

.option-list li:last-child {
  border-bottom: 0;
}

.option-list i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  margin-top: 3px;
  border-radius: 50%;
  background: rgba(79, 157, 141, 0.14);
  color: var(--color-verdigris);
  font-size: 13px;
}

.option-list strong {
  display: block;
  font-size: 16px;
  margin-bottom: 2px;
}

.option-list span {
  color: var(--color-ink-soft);
  font-size: 15px;
  line-height: 1.7;
}

/* 典型场景 */
.scenarios-panel {
  display: flex;
  flex-direction: column;
  gap: 72px;
}

.scenario-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: 52px;
}

.scenario-block--flip .scenario-figure {
  order: 2;
}

.scenario-block--flip .scenario-body {
  order: 1;
}

.scenario-figure {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.scenario-figure img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.scenario-figure:hover img {
  transform: scale(1.02);
}

.scenario-figure-tag {
  position: absolute;
  left: 14px;
  bottom: 14px;
  background: rgba(244, 241, 234, 0.94);
  border-radius: var(--radius-pill);
  color: var(--color-ink);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  box-shadow: 0 4px 12px rgba(26, 46, 53, 0.14);
}

.scenario-body {
  padding: 8px 0;
}

.scenario-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent-azure);
  background: rgba(42, 127, 139, 0.1);
  border-radius: 30px;
  padding: 4px 12px;
  margin-bottom: 14px;
}

.scenario-kicker i {
  color: var(--color-verdigris);
}

.scenario-body h3 {
  font-size: 25px;
  margin-bottom: 12px;
}

.scenario-body p {
  color: var(--color-ink-soft);
  font-size: 16px;
  margin-bottom: 18px;
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.feature-tags li {
  border: 1px solid var(--color-mist);
  background: var(--color-surface);
  border-radius: var(--radius-pill);
  padding: 5px 13px;
  color: var(--color-ink);
  font-size: 13px;
}

.feature-tags li i {
  margin-right: 4px;
  color: var(--color-verdigris);
}

.tip-line {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  border-left: 3px solid var(--color-amber);
  background: #f8f1e3;
  padding: 10px 16px;
  border-radius: 0 8px 8px 0;
  color: var(--color-ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

.tip-line i {
  color: var(--color-amber);
  margin-top: 5px;
}

/* 步骤 */
.launch-section {
  background:
    linear-gradient(180deg, rgba(234, 230, 220, 0.94), rgba(244, 241, 234, 0.98)),
    url('/assets/images/backpic/back-1.png') center / cover no-repeat;
}

.launch-grid {
  margin-top: 54px;
}

.step-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
}

.launch-step {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-mist-light);
  border-radius: var(--radius-lg);
  padding: 30px 26px 28px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.launch-step:hover {
  transform: translateY(-4px);
  border-color: rgba(42, 127, 139, 0.45);
  box-shadow: 0 12px 32px rgba(42, 127, 139, 0.12);
}

.launch-step:not(:last-child)::after {
  content: "\f105";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  right: -23px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-verdigris);
  font-size: 16px;
  z-index: 3;
  background: var(--color-cloud-deep);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--color-accent-azure);
  color: #ffffff;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 18px;
  box-shadow: 0 8px 16px rgba(42, 127, 139, 0.22);
}

.launch-step:nth-child(2) .step-index {
  background: var(--color-verdigris);
  box-shadow: 0 8px 16px rgba(79, 157, 141, 0.24);
}

.launch-step:nth-child(3) .step-index {
  background: var(--color-accent-azure);
}

.launch-step:nth-child(4) .step-index {
  background: var(--color-coral);
  box-shadow: 0 8px 16px rgba(231, 111, 81, 0.22);
}

.launch-step h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.launch-step p {
  color: var(--color-ink-soft);
  font-size: 14px;
  line-height: 1.8;
}

/* 准备清单 */
.prep-card {
  background: var(--color-surface);
  border: 1px solid var(--color-mist-light);
  border-radius: var(--radius-lg);
  padding: 38px;
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: 50px;
  align-items: center;
}

.prep-intro h2 {
  margin-bottom: 12px;
}

.prep-intro p {
  color: var(--color-ink-soft);
}

.prep-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.prep-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-md);
  background: var(--color-cloud);
  transition: border-color var(--transition);
}

.prep-item:hover {
  border-color: var(--color-accent-azure);
}

.prep-item i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 40px;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--color-accent-azure);
  color: #ffffff;
  font-size: 16px;
}

.prep-item strong {
  display: block;
  font-size: 15px;
  margin-bottom: 4px;
}

.prep-item span {
  font-size: 14px;
  color: var(--color-ink-soft);
  line-height: 1.7;
}

/* FAQ */
.faq-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.8fr) minmax(0, 1.2fr);
  gap: 52px;
  align-items: start;
}

.faq-intro {
  position: sticky;
  top: 130px;
}

.faq-intro h2 {
  margin: 8px 0 14px;
}

.faq-intro p {
  color: var(--color-ink-soft);
  margin-bottom: 22px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-mist-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 2px 6px rgba(26, 46, 53, 0.03);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-item[open] {
  border-color: rgba(42, 127, 139, 0.5);
  box-shadow: 0 8px 24px rgba(42, 127, 139, 0.09);
}

.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 19px 22px;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  color: var(--color-ink);
  transition: color var(--transition);
}

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

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

.faq-item summary i {
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(42, 127, 139, 0.1);
  color: var(--color-accent-azure);
  font-size: 13px;
  transition: transform var(--transition);
}

.faq-item[open] summary {
  color: var(--color-accent-azure);
}

.faq-item[open] summary i {
  transform: rotate(45deg);
  background: var(--color-accent-azure);
  color: #ffffff;
}

.faq-answer {
  padding: 0 22px 20px 22px;
  border-top: 1px solid var(--color-mist-light);
  color: var(--color-ink-soft);
  font-size: 15px;
}

.faq-answer p {
  padding-top: 16px;
  line-height: 1.85;
}

/* CTA */
.cta-band {
  position: relative;
  background:
    linear-gradient(100deg, rgba(17, 44, 50, 0.95) 0%, rgba(20, 56, 63, 0.88) 70%, rgba(42, 127, 139, 0.76) 100%),
    url('/assets/images/backpic/back-3.webp') center / cover no-repeat;
  padding: 86px 0;
  color: #ffffff;
  overflow: hidden;
}

.cta-band::after {
  content: "";
  position: absolute;
  right: -130px;
  top: -90px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0) 70%);
}

.cta-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 32px;
}

.cta-copy h2 {
  color: #ffffff;
  margin-bottom: 10px;
}

.cta-copy p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 16px;
}

.cta-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: flex-end;
}

/* Footer */
.site-footer {
  background: var(--color-ink);
  color: rgba(244, 241, 234, 0.76);
}

.footer-line {
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent-azure), var(--color-verdigris) 50%, rgba(42, 127, 139, 0.1));
}

.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr 1fr;
  gap: 42px;
  padding-top: 62px;
  padding-bottom: 50px;
}

.footer-brand .brand-name {
  color: #ffffff;
}

.footer-brand .brand-tag {
  color: rgba(244, 241, 234, 0.58);
}

.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 241, 234, 0.72);
}

.footer-col h3 {
  color: #ffffff;
  font-size: 16px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.footer-col ul li a {
  display: inline-block;
  padding: 5px 0;
  color: rgba(244, 241, 234, 0.7);
  font-size: 14px;
  transition: color var(--transition), transform var(--transition);
}

.footer-col ul li a:hover {
  color: var(--color-amber);
  transform: translateX(3px);
}

.footer-note-text {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 241, 234, 0.68);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding: 20px 20px 34px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: rgba(244, 241, 234, 0.5);
}

.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

/* 响应式 */
@media (max-width: 1180px) {
  .header-inner {
    grid-template-columns: auto 1fr minmax(220px, 320px) auto;
    gap: 10px;
  }

  .nav-link {
    padding: 0 9px;
    font-size: 14px;
  }

  .brand-name {
    font-size: 16px;
  }
}

@media (max-width: 1024px) {
  .section {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .header-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 12px;
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .header-cta {
    display: none;
  }

  .nav-burger {
    display: inline-flex;
    margin-left: auto;
  }

  .site-nav {
    display: none;
    flex-basis: 100%;
    order: 5;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--color-mist-light);
    border-radius: 12px;
    padding: 10px;
    margin-top: 2px;
  }

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

  .site-nav .nav-link {
    height: 44px;
    border-radius: 8px;
    justify-content: flex-start;
    padding: 0 14px;
  }

  .nav-cta-mobile {
    display: inline-flex;
    height: 46px;
    justify-content: center;
    margin-top: 8px;
  }

  .header-search-form {
    order: 4;
    flex-basis: 100%;
    max-width: none;
    justify-self: stretch;
  }

  .cat-hero-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .hero-visual-wrap {
    max-width: 520px;
  }

  .anchor-tabs {
    margin-top: 28px;
  }

  .overview-block,
  .scenario-block {
    grid-template-columns: minmax(0, 1fr);
    gap: 34px;
  }

  .scenario-block--flip .scenario-figure {
    order: 1;
  }

  .scenario-block--flip .scenario-body {
    order: 2;
  }

  .step-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .launch-step:nth-child(2)::after {
    display: none;
  }

  .prep-card {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .faq-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .faq-intro {
    position: static;
  }

  .cta-inner {
    grid-template-columns: minmax(0, 1fr);
    text-align: center;
  }

  .cta-actions {
    justify-content: center;
  }

  .footer-top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 38px;
  }
}

@media (max-width: 640px) {
  .section {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .anchor-row {
    align-items: stretch;
  }

  .anchor-link {
    flex: 1 1 auto;
    justify-content: center;
  }

  .trust-strip {
    gap: 14px;
  }

  .trust-strip > div {
    min-width: calc(50% - 14px);
  }

  .step-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .launch-step::after {
    display: none;
  }

  .prep-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .prep-card {
    padding: 24px;
  }

  .scenario-block {
    gap: 28px;
  }

  .scenario-figure img {
    height: 210px;
  }

  .cta-band {
    padding: 58px 0;
  }

  .footer-top {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding-top: 48px;
  }

  .footer-bottom .container {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .brand-name {
    font-size: 15px;
  }

  .brand-tag {
    font-size: 10px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 16px;
  }

  .nav-burger {
    width: 40px;
    height: 40px;
  }

  .header-search-form input[type="search"] {
    font-size: 14px;
  }

  .category-hero {
    padding-top: 40px;
    padding-bottom: 42px;
  }

  .breadcrumb {
    font-size: 13px;
  }

  .category-hero h1 {
    font-size: 31px;
  }

  .hero-ctas {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-ctas .btn {
    width: 100%;
  }

  .trust-strip {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .trust-strip > div {
    min-width: 0;
  }

  .hero-float-chip {
    position: static;
    margin-top: 10px;
    width: auto;
  }

  .hero-mobile-note {
    position: static;
    margin-top: 8px;
    width: fit-content;
  }

  .hero-visual-wrap {
    gap: 4px;
  }

  .anchor-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .anchor-link {
    width: 100%;
  }

  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

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