/* roulang page: index */
:root{
  --ink:#0B1F1D;
  --ink-2:#11443F;
  --cyan:#23C6A7;
  --orange:#FF7A45;
  --purple:#7B61FF;
  --bg:#F6F7F4;
  --dark:#0B1514;
  --card:#FFFFFF;
  --surface:#EEF2EF;
  --text:#15201E;
  --muted:#5D6B67;
  --border:#DDE5E1;
  --r-sm:8px;
  --r-btn:12px;
  --r-card:16px;
  --r-lg:20px;
  --sh:0 10px 28px rgba(11,31,29,.10);
  --sh-h:0 16px 36px rgba(11,31,29,.14);
  --sh-s:0 4px 12px rgba(11,31,29,.06);
  --focus:0 0 0 3px rgba(35,198,167,.25);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease}
a:hover{color:var(--ink-2)}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:800;line-height:1.3;letter-spacing:-.01em}
h1{font-size:clamp(2rem,5vw,3.4rem)}
h2{font-size:clamp(1.5rem,3vw,2.15rem)}
h3{font-size:1.25rem}
p{margin:0 0 1.1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
[id]{scroll-margin-top:84px}
.container{max-width:1200px;padding-left:20px;padding-right:20px}
.section{padding:clamp(48px,6vw,76px) 0}
.section-alt{background:#FFFFFF;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{max-width:740px;margin-bottom:38px}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--muted);margin:0;font-size:1.02rem}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:700;letter-spacing:.06em;color:var(--ink-2);background:rgba(35,198,167,.13);border:1px solid rgba(35,198,167,.35);padding:5px 13px;border-radius:999px;margin-bottom:16px}
.text-muted-2{color:var(--muted)}

/* ---------- buttons ---------- */
.btn-brand,.btn-accent,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);padding:12px 24px;font-weight:700;font-size:.97rem;
  border:1px solid transparent;line-height:1.4;text-align:center;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-brand{background:var(--ink-2);border-color:var(--ink-2);color:#fff;box-shadow:var(--sh-s)}
.btn-brand:hover{background:#16665d;border-color:#16665d;color:#fff;transform:translateY(-2px);box-shadow:var(--sh)}
.btn-accent{background:var(--orange);border-color:var(--orange);color:#fff;box-shadow:0 6px 18px rgba(255,122,69,.28)}
.btn-accent:hover{background:#f2652c;border-color:#f2652c;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,122,69,.34)}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--ink)}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(35,198,167,.10);color:var(--ink-2);transform:translateY(-2px)}
.btn-block{width:100%}
.btn-brand:focus-visible,.btn-accent:focus-visible,.btn-ghost:focus-visible,.trend-tag:focus-visible{outline:none;box-shadow:var(--focus)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,247,244,.9);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(11,31,29,.09);background:rgba(246,247,244,.96)}
.nav-inner{display:flex;align-items:center;gap:16px;height:64px;transition:height .25s ease}
.site-header.is-scrolled .nav-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;flex-shrink:0}
.brand-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,#11443F,#23C6A7);color:#fff;display:grid;place-items:center;font-size:.95rem;font-weight:800;letter-spacing:0;box-shadow:var(--sh-s)}
.brand-text{font-size:1.06rem;color:var(--ink);white-space:nowrap;letter-spacing:-.02em}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:8px}
.nav-links a{position:relative;padding:8px 13px;border-radius:10px;font-weight:500;font-size:.95rem;color:var(--muted);white-space:nowrap}
.nav-links a:hover{color:var(--ink);background:var(--surface)}
.nav-links a.active{color:var(--ink);font-weight:700}
.nav-links a.active::after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;background:var(--cyan)}
.nav-search{display:flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--border);border-radius:999px;padding:5px 5px 5px 15px;flex:0 1 236px;margin-left:auto}
.nav-search input{border:0;outline:none;background:transparent;flex:1;min-width:0;font-size:.88rem;color:var(--text);font-family:inherit}
.nav-search input::placeholder{color:#93a5a0}
.nav-search button{border:0;background:var(--ink-2);color:#fff;border-radius:999px;padding:6px 15px;font-size:.84rem;font-weight:600;transition:background .2s}
.nav-search button:hover{background:var(--cyan);color:var(--ink)}
.nav-cta{display:none;padding:9px 18px;font-size:.9rem;border-radius:10px}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--border);border-radius:11px;background:#fff;margin-left:auto;padding:0;place-items:center;gap:4px;flex-direction:column}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .25s ease,opacity .25s ease}
.nav-toggle.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-panel{
  position:fixed;left:0;right:0;top:64px;z-index:1029;
  background:#fff;border-bottom:1px solid var(--border);box-shadow:var(--sh);
  padding:14px 20px 24px;max-height:calc(100vh - 64px);overflow-y:auto;
  transform:translateY(-14px);opacity:0;visibility:hidden;transition:transform .25s ease,opacity .25s ease,visibility .25s;
}
.mobile-panel.open{transform:translateY(0);opacity:1;visibility:visible}
.mobile-panel a{display:block;padding:13px 4px;border-bottom:1px solid var(--border);font-weight:600;font-size:.98rem}
.mobile-panel a.active{color:var(--ink-2)}
.mobile-panel a.btn-brand{display:inline-flex;border-bottom:0;margin-top:16px;color:#fff}
.mobile-search{display:flex;gap:8px;margin-top:16px}
.mobile-search input{flex:1;min-width:0;border:1px solid var(--border);border-radius:10px;padding:10px 14px;font-size:.9rem;font-family:inherit;outline:none}
.mobile-search input:focus{border-color:var(--cyan);box-shadow:var(--focus)}
.mobile-search button{border:0;background:var(--ink-2);color:#fff;border-radius:10px;padding:0 18px;font-weight:600;font-size:.9rem}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink);padding:clamp(52px,7vw,82px) 0;display:flex;align-items:center;min-height:520px}
.hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.34}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(108deg,rgba(11,31,29,.95) 0%,rgba(11,31,29,.84) 46%,rgba(17,68,63,.68) 100%)}
.hero .container{position:relative;z-index:3;width:100%}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;font-weight:600;color:#8ff0dc;background:rgba(35,198,167,.16);border:1px solid rgba(35,198,167,.42);padding:6px 14px;border-radius:999px;margin-bottom:20px}
.hero h1{color:#fff;margin-bottom:18px;text-shadow:0 2px 24px rgba(0,0,0,.28)}
.hero-sub{font-size:clamp(1rem,1.6vw,1.16rem);color:#cfe6e1;max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;padding-top:24px;border-top:1px solid rgba(255,255,255,.16)}
.hero-stats .stat-num{display:block;font-size:1.55rem;font-weight:800;color:var(--cyan);line-height:1.2;font-variant-numeric:tabular-nums}
.hero-stats .stat-label{font-size:.84rem;color:#a9c3be}
.hero-visual{position:relative}
.hero-visual img{border-radius:var(--r-lg);border:1px solid rgba(255,255,255,.18);box-shadow:0 24px 60px rgba(0,0,0,.42)}
.hero-float{position:absolute;left:-18px;bottom:-20px;background:#fff;color:var(--text);border-radius:var(--r-card);padding:15px 18px;box-shadow:var(--sh);max-width:250px}
.hero-float strong{display:block;font-size:.92rem;color:var(--ink-2);margin-bottom:4px}
.hero-float span{font-size:.82rem;color:var(--muted);line-height:1.6}

/* ---------- trend bar ---------- */
.trend-bar{background:#fff;border-bottom:1px solid var(--border)}
.trend-inner{display:flex;align-items:center;gap:16px;padding:15px 0;flex-wrap:wrap}
.trend-label{font-weight:800;font-size:.9rem;color:var(--ink-2);white-space:nowrap;display:inline-flex;align-items:center;gap:7px}
.trend-label::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 4px rgba(255,122,69,.18)}
.trend-tags{display:flex;flex-wrap:wrap;gap:10px}
.trend-tag{display:inline-flex;align-items:center;border:1px solid var(--border);background:var(--surface);border-radius:999px;padding:6px 16px;font-size:.87rem;color:var(--muted);font-weight:500}
.trend-tag:hover{border-color:var(--cyan);color:var(--ink-2);background:rgba(35,198,167,.10)}

/* ---------- ladder ---------- */
.ladder-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
.ladder-grid::before{content:"";position:absolute;left:5%;right:5%;top:46px;border-top:2px dashed #cfdbd7;z-index:0}
.ladder-card{position:relative;z-index:1;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--sh-s);transition:transform .25s ease,box-shadow .25s ease}
.ladder-card:nth-child(even){background:var(--surface)}
.ladder-card:hover{transform:translateY(-4px);box-shadow:var(--sh)}
.ladder-index{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:.95rem;color:#fff;background:var(--ink-2);margin-bottom:16px;border:3px solid #fff;box-shadow:var(--sh-s)}
.ladder-card:nth-child(2) .ladder-index{background:var(--cyan);color:var(--ink)}
.ladder-card:nth-child(3) .ladder-index{background:var(--purple)}
.ladder-card:nth-child(4) .ladder-index{background:var(--orange)}
.ladder-card h3{font-size:1.1rem;margin-bottom:6px}
.ladder-flag{display:inline-block;font-size:.75rem;font-weight:700;color:#8a4515;background:rgba(255,122,69,.18);border-radius:999px;padding:3px 11px;margin-bottom:10px}
.ladder-card p{font-size:.92rem;color:var(--muted);margin-bottom:14px}
.ladder-list li{position:relative;padding-left:18px;font-size:.9rem;color:var(--muted);margin-bottom:8px;line-height:1.65}
.ladder-list li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;background:var(--cyan)}
.ladder-card .btn-ghost,.ladder-card .btn-brand{width:100%;padding:10px 16px;font-size:.9rem;margin-top:8px}

/* ---------- compare ---------- */
.compare-wrap{display:grid;grid-template-columns:.82fr 1.68fr;gap:34px;align-items:start}
.compare-intro h2{margin-bottom:14px}
.compare-intro p{color:var(--muted);font-size:.98rem}
.compare-note{background:var(--surface);border-left:3px solid var(--cyan);border-radius:0 var(--r-sm) var(--r-sm) 0;padding:14px 16px;font-size:.9rem;color:var(--muted);margin-top:18px}
.compare-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.compare-card{position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:28px 20px 22px;box-shadow:var(--sh-s);transition:transform .25s ease,box-shadow .25s ease;display:flex;flex-direction:column}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--sh)}
.compare-card.featured{border-color:rgba(255,122,69,.55);box-shadow:var(--sh);transform:translateY(-8px)}
.compare-card.featured:hover{transform:translateY(-10px)}
.compare-card.featured::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;border-radius:var(--r-card) var(--r-card) 0 0;background:linear-gradient(90deg,var(--orange),#ffb08c)}
.compare-badge{position:absolute;right:16px;top:-12px;background:var(--orange);color:#fff;font-size:.74rem;font-weight:700;border-radius:999px;padding:4px 12px;box-shadow:0 6px 14px rgba(255,122,69,.32)}
.compare-card h3{font-size:1.08rem;margin-bottom:6px}
.compare-scene{font-size:.85rem;color:var(--muted);min-height:44px;margin-bottom:14px}
.compare-meta{font-size:.82rem;color:var(--ink-2);background:rgba(35,198,167,.10);border-radius:var(--r-sm);padding:8px 12px;margin-bottom:16px}
.compare-list-sm li{position:relative;padding-left:20px;font-size:.89rem;color:var(--muted);margin-bottom:9px;line-height:1.65}
.compare-list-sm li::before{content:"✓";position:absolute;left:0;top:0;color:var(--cyan);font-weight:800;font-size:.82rem}
.compare-card .btn-ghost,.compare-card .btn-brand{margin-top:auto;width:100%;padding:10px 16px;font-size:.9rem}

/* ---------- flash ---------- */
.flash{position:relative;overflow:hidden;background:linear-gradient(122deg,#0B1514 0%,#11443F 100%);color:#fff;border-radius:var(--r-lg);padding:clamp(28px,4vw,48px)}
.flash::after{content:"";position:absolute;right:-70px;top:-70px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(35,198,167,.30),rgba(35,198,167,0) 70%)}
.flash-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .75fr;gap:34px;align-items:center}
.flash h2{color:#fff;margin-bottom:12px}
.flash p{color:#bcd6d1;margin-bottom:0;max-width:520px}
.countdown{display:flex;gap:12px;margin:22px 0 20px}
.cd-item{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:12px;padding:10px 0;text-align:center;min-width:76px;flex:1}
.cd-num{display:block;font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;font-variant-numeric:tabular-nums;font-size:1.75rem;font-weight:800;color:var(--cyan);line-height:1.15}
.cd-label{font-size:.74rem;color:#a9c3be;letter-spacing:.06em}
.progress-track{height:8px;background:rgba(255,255,255,.14);border-radius:999px;overflow:hidden;margin-bottom:22px}
.progress-fill{height:100%;width:40%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),#7ff0d8);transition:width .8s ease}
.flash-side{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-card);padding:22px}
.flash-side h3{color:#fff;font-size:1.02rem;margin-bottom:12px}
.flash-side li{position:relative;padding-left:18px;font-size:.9rem;color:#c6dcd8;margin-bottom:9px}
.flash-side li::before{content:"";position:absolute;left:0;top:.6em;width:7px;height:7px;border-radius:50%;background:var(--orange)}

/* ---------- news / cms ---------- */
.news-card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:24px 22px;box-shadow:var(--sh-s);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh);border-color:#c8dcd6}
.news-card:hover .news-title{color:var(--ink-2)}
.news-title{font-size:1.06rem;line-height:1.5;margin-bottom:10px;transition:color .2s ease}
.news-excerpt{color:var(--muted);font-size:.92rem;line-height:1.7;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:10px;margin-top:auto;font-size:.82rem;color:var(--muted);flex-wrap:wrap}
.badge-cat{background:rgba(35,198,167,.13);color:#14665a;border-radius:999px;padding:4px 12px;font-size:.77rem;font-weight:700}
.badge-time{background:var(--surface);color:var(--muted);border-radius:999px;padding:4px 12px;font-size:.77rem;font-weight:600}
.empty-state{background:#fff;border:1px dashed var(--border);border-radius:var(--r-card);padding:52px 24px;text-align:center}
.empty-state .empty-icon{width:56px;height:56px;border-radius:50%;background:var(--surface);color:var(--ink-2);display:grid;place-items:center;margin:0 auto 16px;font-size:1.4rem;font-weight:800}
.empty-state p{color:var(--muted);margin:0}

/* ---------- contact ---------- */
.contact-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:38px;align-items:start}
.contact-intro h2{margin-bottom:14px}
.contact-intro p{color:var(--muted)}
.contact-points li{position:relative;padding-left:26px;font-size:.95rem;color:var(--muted);margin-bottom:12px;line-height:1.7}
.contact-points li::before{content:"✓";position:absolute;left:0;top:0;width:18px;height:18px;border-radius:50%;background:rgba(35,198,167,.18);color:#14665a;font-size:.72rem;font-weight:800;display:grid;place-items:center;margin-top:4px}
.contact-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:clamp(22px,3vw,32px);box-shadow:var(--sh)}
.form-label{display:block;font-size:.85rem;font-weight:700;color:var(--ink-2);margin-bottom:7px}
.form-control,.form-select{width:100%;border-radius:10px;border:1px solid var(--border);padding:11px 14px;font-size:.95rem;background:#fff;color:var(--text);font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease}
.form-control::placeholder{color:#9aaba6}
.form-control:focus,.form-select:focus{border-color:var(--cyan);box-shadow:var(--focus);outline:none}
textarea.form-control{min-height:118px;resize:vertical}
.form-hint{font-size:.79rem;color:var(--muted);margin:12px 0 0}
.form-msg{display:none;margin-top:14px;background:rgba(35,198,167,.12);border:1px solid rgba(35,198,167,.4);color:#14665a;border-radius:10px;padding:11px 15px;font-size:.88rem;font-weight:600}
.form-msg.show{display:block}

/* ---------- faq ---------- */
.faq .accordion-item{border:1px solid var(--border);border-radius:var(--r-card)!important;margin-bottom:12px;overflow:hidden;background:#fff;box-shadow:var(--sh-s)}
.faq .accordion-button{font-weight:700;font-size:1.02rem;color:var(--ink);background:#fff;padding:19px 22px;box-shadow:none;gap:14px}
.faq .accordion-button:not(.collapsed){color:var(--ink-2);background:rgba(35,198,167,.07)}
.faq .accordion-button:focus{box-shadow:var(--focus);border-color:var(--cyan);z-index:3}
.faq .accordion-button::after{
  flex-shrink:0;width:26px;height:26px;background-image:none;content:"+";
  font-size:1.15rem;font-weight:800;color:var(--cyan);
  display:grid;place-items:center;border-radius:50%;
  background-color:rgba(35,198,167,.14);
  transition:transform .25s ease,background-color .25s ease;
}
.faq .accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg);background-color:rgba(255,122,69,.2);color:#c14a1c}
.faq .accordion-body{color:var(--muted);padding:0 22px 22px;font-size:.95rem;line-height:1.78}
.faq .accordion-body strong{color:var(--ink-2)}

/* ---------- cta band ---------- */
.cta-band{background:linear-gradient(120deg,#11443F,#0B1F1D);border-radius:var(--r-lg);padding:clamp(28px,4vw,44px);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap}
.cta-band h2{color:#fff;margin-bottom:8px;font-size:clamp(1.35rem,2.6vw,1.9rem)}
.cta-band p{color:#bcd6d1;margin:0;max-width:560px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#c3d5d1;padding:56px 0 0;margin-top:0}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#23C6A7,#11443F)}
.footer-brand strong{color:#fff;font-size:1.06rem}
.site-footer p{font-size:.9rem;color:#93aaa5;line-height:1.75}
.footer-title{color:#fff;font-size:1rem;font-weight:800;margin-bottom:18px}
.footer-list li{margin-bottom:11px}
.site-footer a{color:#c3d5d1;font-size:.91rem}
.site-footer a:hover{color:var(--cyan)}
.footer-tags{display:flex;flex-wrap:wrap;gap:9px}
.footer-tags a{display:inline-flex;border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:5px 13px;font-size:.82rem;color:#b9cdc9}
.footer-tags a:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(35,198,167,.1)}
.footer-contact li{font-size:.9rem;color:#a9c0bc;margin-bottom:11px;line-height:1.7}
.footer-contact li span{color:#fff;font-weight:600}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding:20px 0 26px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.82rem;color:#87a09b}

/* ---------- responsive ---------- */
@media (min-width:1200px){
  .nav-cta{display:inline-flex}
}
@media (max-width:1199.98px){
  .nav-search{flex:0 1 190px}
}
@media (max-width:991.98px){
  .nav-links,.nav-search{display:none}
  .nav-toggle{display:flex}
  .nav-inner{height:60px}
  .mobile-panel{top:60px;max-height:calc(100vh - 60px)}
  .hero{min-height:auto}
  .ladder-grid{grid-template-columns:repeat(2,1fr)}
  .ladder-grid::before{display:none}
  .compare-wrap{grid-template-columns:1fr;gap:26px}
  .flash-inner{grid-template-columns:1fr;gap:26px}
  .contact-wrap{grid-template-columns:1fr;gap:26px}
  .hero-float{left:14px;bottom:14px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .compare-list{grid-template-columns:1fr}
  .compare-card.featured{transform:none}
  .compare-card.featured:hover{transform:translateY(-4px)}
  .hero-stats{gap:22px}
  .hero-stats .stat-num{font-size:1.35rem}
  .section{padding:44px 0}
  .cta-band{flex-direction:column;align-items:flex-start}
  .brand-text{font-size:1rem}
}
@media (max-width:575.98px){
  .ladder-grid{grid-template-columns:1fr}
  .hero-actions .btn-brand,.hero-actions .btn-accent{width:100%}
  .countdown{gap:8px}
  .cd-item{min-width:0;padding:8px 0}
  .cd-num{font-size:1.4rem}
  .container{padding-left:16px;padding-right:16px}
}

/* roulang page: article */
:root{
  --ink:#0B1F1D;
  --ink-2:#11443F;
  --cyan:#23C6A7;
  --orange:#FF7A45;
  --purple:#7B61FF;
  --bg:#F6F7F4;
  --dark:#0B1514;
  --card:#FFFFFF;
  --surface:#EEF2EF;
  --text:#15201E;
  --muted:#5D6B67;
  --border:#DDE5E1;
  --r-sm:8px;
  --r-btn:11px;
  --r-card:16px;
  --r-lg:20px;
  --sh-1:0 4px 12px rgba(11,31,29,.06);
  --sh-2:0 10px 28px rgba(11,31,29,.10);
  --sh-3:0 16px 36px rgba(11,31,29,.14);
  --ease:.25s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink-2);text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease)}
a:hover{color:var(--cyan)}
h1,h2,h3,h4{font-weight:800;line-height:1.35;color:var(--ink);margin:0}
p{margin:0 0 1.1em}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
input,textarea{width:100%}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section-sm{padding:48px 0}
.section-dark{background:var(--dark);color:#DCE6E3}
.section-dark h2,.section-dark h3{color:#FFFFFF}
.section-alt{background:var(--surface)}
.sec-head{margin-bottom:34px}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.78rem;font-weight:700;letter-spacing:.14em;
  color:var(--ink-2);text-transform:uppercase;
  background:rgba(35,198,167,.13);
  border:1px solid rgba(35,198,167,.35);
  padding:5px 14px;border-radius:999px;margin-bottom:14px;
}
.sec-head h2{font-size:clamp(1.5rem,3vw,2.1rem)}
.sec-head p{color:var(--muted);margin:.7em 0 0;max-width:760px}

/* ---------- 通用按钮 ---------- */
.btn-brand,.btn-ghost,.btn-orange,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-weight:700;font-size:.95rem;line-height:1;
  padding:13px 24px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  text-align:center;
}
.btn-brand{background:linear-gradient(135deg,var(--ink-2),var(--ink));color:#fff;box-shadow:var(--sh-2)}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);background:linear-gradient(135deg,#155850,var(--ink))}
.btn-orange{background:var(--orange);color:#2A0E03;box-shadow:0 8px 22px rgba(255,122,69,.32)}
.btn-orange:hover{color:#2A0E03;background:#ff8d5f;transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--border);box-shadow:var(--sh-1)}
.btn-ghost:hover{color:var(--ink-2);border-color:var(--cyan);background:rgba(35,198,167,.10);transform:translateY(-2px)}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-line:hover{color:#fff;border-color:var(--cyan);background:rgba(35,198,167,.16)}
.btn-brand:focus-visible,.btn-ghost:focus-visible,.btn-orange:focus-visible,.btn-line:focus-visible,
a:focus-visible,button:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(35,198,167,.35)}

/* ---------- 徽章 / 标签 ---------- */
.badge-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:999px;
  font-size:.78rem;font-weight:700;letter-spacing:.02em;
  background:rgba(35,198,167,.14);color:#0E6B5A;border:1px solid rgba(35,198,167,.32);
}
.badge-chip.is-orange{background:rgba(255,122,69,.14);color:#B8410F;border-color:rgba(255,122,69,.3)}
.badge-chip.is-purple{background:rgba(123,97,255,.14);color:#4B34C9;border-color:rgba(123,97,255,.28)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,247,244,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(11,31,29,.09)}
.header-top{display:flex;align-items:center;gap:18px;height:64px;transition:height var(--ease)}
.site-header.is-scrolled .header-top{height:56px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(140deg,var(--cyan),var(--ink-2));
  color:#fff;font-weight:800;font-size:1.15rem;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(17,68,63,.32);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:1.02rem;color:var(--ink);letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:.72rem;color:var(--muted);letter-spacing:.06em}
.nav-search{
  position:relative;flex:1;max-width:340px;min-width:150px;
  display:flex;align-items:center;
  background:#fff;border:1px solid var(--border);border-radius:999px;
  padding:0 16px;height:42px;box-shadow:var(--sh-1);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.nav-search:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(35,198,167,.18)}
.nav-search i{color:var(--muted);font-size:.85rem;margin-right:9px}
.nav-search input{border:0;outline:none;background:transparent;height:100%;font-size:.9rem}
.nav-search input::placeholder{color:#93A19C}
.header-cta{margin-left:auto;padding:11px 20px;font-size:.9rem}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:var(--r-btn);
  background:#fff;border:1px solid var(--border);color:var(--ink);
  box-shadow:var(--sh-1);
}
.nav-collapse{display:flex;align-items:center;gap:20px;border-top:1px solid var(--border);padding:10px 0 14px}
.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav-links a{
  position:relative;display:inline-block;
  padding:8px 14px;border-radius:var(--r-sm);
  font-size:.93rem;font-weight:600;color:var(--text);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  background:var(--cyan);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-links a:hover{color:var(--ink-2);background:rgba(35,198,167,.08)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);background:rgba(35,198,167,.13)}
.nav-links a.active::after{transform:scaleX(1)}
.hot-tags{display:flex;align-items:center;gap:8px;margin-left:auto;flex-wrap:wrap}
.hot-label{font-size:.72rem;font-weight:700;letter-spacing:.12em;color:var(--orange);text-transform:uppercase}
.hot-tags a{
  font-size:.8rem;font-weight:600;color:var(--muted);
  padding:4px 12px;border-radius:999px;border:1px solid var(--border);background:#fff;
}
.hot-tags a:hover{color:#0E6B5A;border-color:var(--cyan);background:rgba(35,198,167,.10)}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--border);padding:14px 0}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:.83rem;color:var(--muted)}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:#B8C4BF}
.crumbs a{color:var(--muted);font-weight:600}
.crumbs a:hover{color:var(--cyan)}
.crumbs .current{color:var(--ink);font-weight:600;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-hero{
  position:relative;
  background:linear-gradient(120deg,rgba(11,31,29,.94),rgba(17,68,63,.86)),url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  color:#D8E5E1;
  padding:56px 0 62px;
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(35,198,167,.30),transparent 68%);
}
.article-hero-inner{position:relative;z-index:2;max-width:860px}
.article-hero .badge-chip{background:rgba(35,198,167,.2);color:#9BF3E1;border-color:rgba(35,198,167,.45);margin-bottom:18px}
.article-hero h1{
  font-size:clamp(1.7rem,4vw,2.7rem);
  color:#fff;letter-spacing:.01em;margin-bottom:18px;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:.85rem;color:#A9BEBA}
.article-meta span{display:inline-flex;align-items:center;gap:8px}
.article-meta i{color:var(--cyan);font-size:.85rem}

/* ---------- 正文 ---------- */
.article-main{padding:56px 0 64px}
.article-wrap{max-width:800px;margin:0 auto}
.article-figure{margin:0 0 34px;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-2)}
.article-figure img{width:100%;aspect-ratio:16/8;object-fit:cover}
.article-body{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:40px 44px;box-shadow:var(--sh-1);
  font-size:16.5px;line-height:1.85;color:#1D2A27;
  overflow-wrap:break-word;word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-size:1.45rem;margin:2.1em 0 .85em;padding-left:15px;
  border-left:5px solid var(--cyan);line-height:1.4;
}
.article-body h3{font-size:1.16rem;margin:1.7em 0 .7em;color:var(--ink-2)}
.article-body h4{font-size:1.03rem;margin:1.4em 0 .6em}
.article-body p{margin:0 0 1.25em}
.article-body ul,.article-body ol{margin:0 0 1.35em;padding-left:0}
.article-body ul li,.article-body ol li{position:relative;padding-left:24px;margin-bottom:.6em}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:3px;
  background:var(--cyan);transform:rotate(45deg);
}
.article-body ol{counter-reset:olc}
.article-body ol li{counter-increment:olc}
.article-body ol li::before{
  content:counter(olc);position:absolute;left:0;top:.15em;
  width:18px;height:18px;border-radius:50%;
  background:rgba(255,122,69,.16);color:#B8410F;
  font-size:.7rem;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.article-body a{color:var(--ink-2);font-weight:600;border-bottom:1px solid rgba(35,198,167,.5)}
.article-body a:hover{color:var(--cyan);border-color:var(--cyan)}
.article-body img{border-radius:12px;margin:1.6em auto;box-shadow:var(--sh-1)}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;
  background:var(--surface);border-left:4px solid var(--cyan);
  border-radius:0 var(--r-card) var(--r-card) 0;color:var(--ink-2);font-weight:500;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:1.7em 0;
  border:1px solid var(--border);border-radius:12px;overflow:hidden;font-size:.94rem;
}
.article-body th{background:var(--ink-2);color:#fff;font-weight:700;text-align:left;padding:12px 16px}
.article-body td{padding:12px 16px;border-top:1px solid var(--border)}
.article-body tbody tr:nth-child(even) td{background:#FAFBFA}
.article-body hr{border:0;border-top:1px dashed var(--border);margin:2em 0}
.article-body code{background:var(--surface);border-radius:6px;padding:2px 7px;font-size:.9em;color:#0E6B5A}
.article-body strong{color:var(--ink);font-weight:800}

.empty-state{text-align:center;padding:34px 10px}
.empty-state i{font-size:2.4rem;color:var(--cyan);margin-bottom:16px;display:block}
.empty-state h2{font-size:1.35rem;margin-bottom:10px}
.empty-state p{color:var(--muted);max-width:520px;margin:0 auto 22px}
.empty-state .btn-brand{margin-top:4px}

/* ---------- 阅读提示条 ---------- */
.read-note{
  display:flex;gap:14px;align-items:flex-start;
  background:rgba(255,122,69,.08);border:1px solid rgba(255,122,69,.28);
  border-radius:var(--r-card);padding:18px 22px;margin-top:26px;
}
.read-note i{color:var(--orange);font-size:1.15rem;margin-top:3px}
.read-note strong{display:block;color:#A93A0D;margin-bottom:4px;font-weight:800}
.read-note p{margin:0;font-size:.92rem;color:#6B4A3C;line-height:1.7}

/* ---------- 相关推荐 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.rel-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:rgba(35,198,167,.5)}
.rel-card .thumb{overflow:hidden;aspect-ratio:16/9}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.rel-card:hover .thumb img{transform:scale(1.04)}
.rel-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.rel-card h3{font-size:1.05rem;margin-bottom:10px;line-height:1.5}
.rel-card h3 a{color:var(--ink)}
.rel-card h3 a:hover{color:var(--ink-2)}
.rel-card p{font-size:.9rem;color:var(--muted);margin:0 0 16px;flex:1}
.rel-meta{display:flex;align-items:center;gap:12px;font-size:.78rem;color:var(--muted)}
.back-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:38px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{
  border:1px solid var(--border)!important;border-radius:var(--r-card)!important;
  overflow:hidden;margin-bottom:14px;background:#fff;box-shadow:var(--sh-1);
}
.accordion-button{
  font-weight:700;font-size:1rem;color:var(--ink);background:#fff;
  padding:19px 22px;box-shadow:none!important;
}
.accordion-button:not(.collapsed){color:var(--ink-2);background:rgba(35,198,167,.09)}
.accordion-button::after{
  background-image:none;content:"+";
  font-size:1.35rem;line-height:1;color:var(--cyan);font-weight:700;
  transform:none;width:auto;height:auto;margin-left:auto;
  transition:transform var(--ease);
}
.accordion-button:not(.collapsed)::after{content:"+";transform:rotate(45deg);color:var(--orange)}
.accordion-body{padding:4px 22px 22px;color:var(--muted);font-size:.94rem;line-height:1.8}

/* ---------- CTA / 咨询 ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  background:linear-gradient(125deg,var(--ink),#0E2F2B 55%,#12443E);
  border-radius:var(--r-lg);padding:48px;color:#D5E4E0;
}
.cta-panel::after{
  content:"";position:absolute;left:-80px;bottom:-120px;width:340px;height:340px;
  background:radial-gradient(circle,rgba(123,97,255,.3),transparent 70%);
}
.cta-panel h2{color:#fff;font-size:clamp(1.4rem,3vw,1.95rem);margin-bottom:12px}
.cta-panel p{color:#A9BEBA;margin-bottom:0}
.cta-points{margin:22px 0 0;display:grid;gap:10px}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:.92rem;color:#C4D6D1}
.cta-points i{color:var(--cyan)}
.form-card{
  position:relative;z-index:2;
  background:#fff;border-radius:var(--r-card);padding:28px;
  box-shadow:0 18px 40px rgba(0,0,0,.28);color:var(--text);
}
.form-card h3{font-size:1.12rem;margin-bottom:6px}
.form-card .form-sub{font-size:.84rem;color:var(--muted);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:.8rem;font-weight:700;color:var(--ink-2);margin-bottom:7px;letter-spacing:.02em}
.field input,.field textarea,.field select{
  border:1px solid var(--border);border-radius:10px;padding:11px 14px;
  font-size:.92rem;background:#fff;color:var(--text);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(35,198,167,.22);
}
.form-card .btn-orange{width:100%}
.form-note{font-size:.76rem;color:var(--muted);margin:12px 0 0;text-align:center}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#B9CAC6;padding:58px 0 26px;margin-top:8px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;font-size:1rem}
.footer-brand strong{color:#fff;font-size:1.04rem}
.site-footer p{font-size:.9rem;line-height:1.8;color:#9CB1AC}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-tags a{
  font-size:.78rem;padding:5px 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);color:#B9CAC6;
}
.footer-tags a:hover{color:var(--cyan);border-color:var(--cyan)}
.footer-title{color:#fff;font-size:.95rem;margin-bottom:16px;letter-spacing:.03em}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:.88rem;color:#9CB1AC}
.footer-list a:hover{color:var(--cyan)}
.footer-contact li{font-size:.86rem;color:#9CB1AC;margin-bottom:10px;line-height:1.7}
.footer-contact span{color:#D5E4E0}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:.78rem;color:#7E938F;
}

@media (max-width:991px){
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .nav-search{max-width:none}
  .nav-collapse{flex-direction:column;align-items:flex-start;gap:12px;padding:14px 0 16px}
  .nav-links{flex-direction:column;align-items:stretch;width:100%;gap:2px}
  .nav-links a{padding:10px 12px}
  .nav-links a::after{display:none}
  .hot-tags{margin-left:0}
  .article-body{padding:30px 24px}
  .cta-panel{padding:34px 26px}
}
@media (min-width:992px){
  .nav-collapse{display:flex!important}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .section{padding:52px 0}
  .section-sm{padding:36px 0}
  .brand-text em{display:none}
  .article-main{padding:36px 0 44px}
  .related-grid{grid-template-columns:1fr}
  .article-hero{padding:42px 0 46px}
  .crumbs .current{max-width:200px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:519px){
  .container{padding:0 16px}
  .article-body{padding:24px 18px;font-size:15.5px}
  .article-body h2{font-size:1.25rem}
  .btn-brand,.btn-ghost,.btn-orange{padding:12px 18px;font-size:.9rem;width:100%}
  .back-actions{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --ink:#0B1F1D;
  --ink-2:#11443F;
  --cyan:#23C6A7;
  --orange:#FF7A45;
  --purple:#7B61FF;
  --bg:#F6F7F4;
  --dark:#0B1514;
  --card:#FFFFFF;
  --surface:#EEF2EF;
  --text:#15201E;
  --muted:#5D6B67;
  --line:#DDE5E1;
  --r-sm:8px;
  --r-btn:11px;
  --r-card:16px;
  --r-lg:20px;
  --sh:0 10px 28px rgba(11,31,29,.10);
  --sh-h:0 16px 36px rgba(11,31,29,.14);
  --sh-s:0 4px 12px rgba(11,31,29,.06);
  --sec-pad:72px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink-2);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--cyan)}
h1,h2,h3,h4{font-weight:800;color:var(--ink);letter-spacing:.2px;line-height:1.3}
h1{font-size:clamp(2rem,5vw,3.4rem)}
h2{font-size:clamp(1.5rem,3vw,2.1rem)}
h3{font-size:1.24rem;font-weight:700}
p{margin:0 0 1.1em}
.container{max-width:1200px;padding-left:20px;padding-right:20px}
.section{padding:var(--sec-pad) 0}
.section-alt{background:var(--surface)}
.sec-head{margin-bottom:38px}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8rem;font-weight:700;letter-spacing:.14em;
  color:var(--ink-2);background:rgba(35,198,167,.13);
  border:1px solid rgba(35,198,167,.32);
  padding:5px 14px;border-radius:999px;margin-bottom:14px;
}
.sec-head h2{margin:0 0 10px}
.sec-head p{color:var(--muted);margin:0;max-width:760px}
.text-muted-2{color:var(--muted)}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,247,244,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled{box-shadow:0 8px 24px rgba(11,31,29,.09);background:rgba(246,247,244,.97)}
.header-inner{display:flex;align-items:center;gap:22px;min-height:64px;transition:min-height .25s ease}
.site-header.scrolled .header-inner{min-height:56px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(140deg,var(--ink-2),var(--ink));
  color:var(--cyan);display:grid;place-items:center;
  font-weight:800;font-size:1rem;box-shadow:var(--sh-s);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:1rem;color:var(--ink);font-weight:800;letter-spacing:.2px}
.brand-text small{font-size:.7rem;color:var(--muted);letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:6px;flex:1}
.nav-links a{
  position:relative;font-weight:500;font-size:.95rem;color:var(--muted);
  padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--cyan);border-radius:2px;transition:width .25s ease;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--ink);font-weight:700}
.nav-links a.active::after{width:22px}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:7px 14px;transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(35,198,167,.25)}
.search-box i{color:var(--muted);font-size:.85rem}
.search-box input{border:0;outline:0;font-size:.88rem;width:132px;background:transparent;color:var(--text)}
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--ink-2);color:#fff;border:0;border-radius:var(--r-btn);
  padding:10px 20px;font-size:.9rem;font-weight:600;
  box-shadow:var(--sh-s);transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn-brand:hover{background:var(--ink);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-h)}
.btn-brand:focus-visible{outline:0;box-shadow:0 0 0 3px rgba(35,198,167,.25)}
.btn-accent{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--orange);color:#fff;border:0;border-radius:var(--r-btn);
  padding:11px 22px;font-size:.92rem;font-weight:700;
  box-shadow:0 8px 20px rgba(255,122,69,.28);
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
}
.btn-accent:hover{background:#f2682f;color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,122,69,.34)}
.btn-accent:focus-visible{outline:0;box-shadow:0 0 0 3px rgba(255,122,69,.3)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:var(--ink-2);
  border:1px solid var(--line);border-radius:var(--r-btn);
  padding:10px 20px;font-size:.9rem;font-weight:600;
  transition:border-color .2s ease,background .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(35,198,167,.1);color:var(--ink);transform:translateY(-2px)}
.btn-ghost-light{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.35);
  border-radius:var(--r-btn);padding:10px 20px;font-size:.9rem;font-weight:600;
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.btn-ghost-light:hover{border-color:var(--cyan);background:rgba(35,198,167,.16);color:#fff;transform:translateY(-2px)}
.nav-toggle{
  display:none;background:#fff;border:1px solid var(--line);border-radius:10px;
  width:40px;height:40px;align-items:center;justify-content:center;color:var(--ink);
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}

/* ============ HERO ============ */
.cat-hero{
  position:relative;color:#fff;overflow:hidden;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding:60px 0 86px;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(11,31,29,.95) 0%,rgba(17,68,63,.86) 55%,rgba(11,21,20,.78) 100%);
}
.cat-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.85rem;color:rgba(255,255,255,.68);margin-bottom:20px}
.crumb a{color:rgba(255,255,255,.8)}
.crumb a:hover{color:var(--cyan)}
.crumb span.dot{opacity:.5}
.cat-hero h1{color:#fff;margin:0 0 16px;max-width:20ch}
.cat-hero .lede{font-size:1.06rem;color:rgba(255,255,255,.82);max-width:660px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags span{
  display:inline-flex;align-items:center;gap:7px;
  font-size:.83rem;font-weight:600;padding:7px 15px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
  color:rgba(255,255,255,.92);transition:border-color .2s ease,background .2s ease;
}
.hero-tags span:hover{border-color:var(--cyan);background:rgba(35,198,167,.18)}
.hero-tags span i{color:var(--cyan);font-size:.75rem}

/* ============ METRICS ============ */
.metric-row{
  position:relative;z-index:3;margin-top:-42px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh);
  display:grid;grid-template-columns:repeat(4,1fr);
  padding:8px;
}
.metric-item{padding:20px 18px;border-right:1px dashed var(--line)}
.metric-item:last-child{border-right:0}
.metric-num{font-size:1.7rem;font-weight:800;color:var(--ink);letter-spacing:.5px;font-variant-numeric:tabular-nums}
.metric-num em{font-style:normal;font-size:.95rem;color:var(--orange);margin-left:4px;font-weight:700}
.metric-label{font-size:.86rem;color:var(--muted);font-weight:500}

/* ============ CONTENT LAYOUT ============ */
.layout-row{display:grid;grid-template-columns:minmax(0,340px) minmax(0,1fr);gap:34px;align-items:start}
.side-panel{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.panel-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-s);
}
.panel-card h3{margin:0 0 14px;font-size:1.08rem}
.panel-card h3 i{color:var(--cyan);margin-right:8px}
.check-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;gap:10px;font-size:.92rem;color:var(--text)}
.check-list li i{color:var(--cyan);margin-top:5px;font-size:.8rem;flex-shrink:0}
.chip-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:4px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.83rem;font-weight:600;color:var(--ink-2);
  background:var(--surface);border:1px solid var(--line);
  padding:6px 14px;border-radius:999px;
  transition:border-color .2s ease,background .2s ease,color .2s ease;
}
.chip:hover{border-color:var(--cyan);background:rgba(35,198,167,.12);color:var(--ink)}
.panel-dark{
  background:linear-gradient(150deg,var(--ink-2),var(--ink));
  border:0;color:rgba(255,255,255,.82);
}
.panel-dark h3{color:#fff}
.panel-dark h3 i{color:var(--orange)}
.panel-dark p{font-size:.9rem;margin-bottom:16px}
.panel-dark .btn-ghost-light{width:100%;justify-content:center}

.card-list{display:flex;flex-direction:column;gap:20px}
.guide-card{
  display:grid;grid-template-columns:212px minmax(0,1fr);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-s);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:#cfe3dd}
.guide-card .thumb{height:100%;min-height:168px;overflow:hidden}
.guide-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.guide-card:hover .thumb img{transform:scale(1.03)}
.guide-body{padding:20px 22px}
.guide-meta{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin-bottom:10px}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.75rem;font-weight:700;padding:4px 12px;border-radius:999px;
  background:rgba(35,198,167,.14);color:#0d5a4c;
}
.badge-orange{background:rgba(255,122,69,.15);color:#a8401c}
.badge-purple{background:rgba(123,97,255,.14);color:#4530b8}
.meta-time{font-size:.78rem;color:var(--muted)}
.guide-body h3{margin:0 0 8px;font-size:1.12rem}
.guide-body h3 a{color:var(--ink)}
.guide-body p{font-size:.92rem;color:var(--muted);margin:0 0 14px}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.link-more{font-size:.88rem;font-weight:700;color:var(--ink-2);display:inline-flex;align-items:center;gap:7px}
.link-more i{transition:transform .2s ease}
.link-more:hover i{transform:translateX(4px)}

/* ============ CTA BAND ============ */
.cta-band{
  position:relative;color:#fff;overflow:hidden;border-radius:var(--r-lg);
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding:44px 44px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(110deg,rgba(11,31,29,.95),rgba(17,68,63,.82));
}
.cta-band .inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px}
.cta-band h2{color:#fff;margin:0 0 8px;font-size:clamp(1.4rem,2.6vw,1.95rem)}
.cta-band p{color:rgba(255,255,255,.78);margin:0;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{
  background:#fff;border:1px solid var(--line)!important;border-radius:var(--r-card)!important;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-s);
}
.accordion-button{
  background:#fff;color:var(--ink);font-weight:700;font-size:1rem;
  padding:20px 24px;box-shadow:none!important;
}
.accordion-button:not(.collapsed){background:rgba(35,198,167,.08);color:var(--ink-2)}
.accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  width:auto;height:auto;font-size:.85rem;color:var(--cyan);
  transition:transform .25s ease;transform:none;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.accordion-body{padding:4px 24px 22px;color:var(--muted);font-size:.94rem;line-height:1.8}

/* ============ FORM ============ */
.contact-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:34px;align-items:start}
.contact-note{
  background:linear-gradient(150deg,var(--ink),var(--ink-2));
  color:rgba(255,255,255,.84);border-radius:var(--r-lg);padding:34px;
}
.contact-note h2{color:#fff;margin:0 0 12px}
.contact-note p{font-size:.94rem}
.contact-note ul{list-style:none;padding:0;margin:22px 0 0;display:flex;flex-direction:column;gap:13px;font-size:.92rem}
.contact-note li{display:flex;gap:11px;align-items:flex-start}
.contact-note li i{color:var(--cyan);margin-top:5px;font-size:.8rem}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh);
}
.form-card .form-label{font-size:.85rem;font-weight:600;color:var(--ink);margin-bottom:7px}
.form-control,.form-select{
  border-radius:10px;border:1px solid var(--line);padding:11px 14px;
  font-size:.92rem;color:var(--text);background:#fff;
}
.form-control:focus,.form-select:focus{
  border-color:var(--cyan);box-shadow:0 0 0 3px rgba(35,198,167,.25);
}
.form-control::placeholder{color:#9aa8a3}
.form-hint{font-size:.8rem;color:var(--muted);margin-top:7px}
.form-msg{display:none;margin-top:16px;font-size:.9rem;padding:12px 16px;border-radius:10px;background:rgba(35,198,167,.12);color:#0d5a4c;border:1px solid rgba(35,198,167,.3)}
.form-msg.show{display:block}

/* ============ RELATED ============ */
.rel-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.rel-card{
  display:flex;gap:18px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-s);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:#cfe3dd}
.rel-card .rel-icon{
  flex-shrink:0;width:50px;height:50px;border-radius:14px;display:grid;place-items:center;
  background:rgba(35,198,167,.14);color:var(--ink-2);font-size:1.15rem;
}
.rel-card.alt .rel-icon{background:rgba(255,122,69,.15);color:#a8401c}
.rel-card h3{margin:0 0 5px;font-size:1.02rem}
.rel-card p{margin:0;font-size:.86rem;color:var(--muted)}

/* ============ FOOTER ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:60px 0 0;margin-top:0}
.site-footer .footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.site-footer .brand-mark{background:linear-gradient(140deg,var(--cyan),var(--ink-2));color:#04231e}
.site-footer .footer-brand strong{color:#fff;font-size:1.05rem;font-weight:800}
.site-footer p{font-size:.9rem;line-height:1.8;color:rgba(255,255,255,.66)}
.footer-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:6px}
.footer-tags a{
  font-size:.78rem;padding:5px 13px;border-radius:999px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  color:rgba(255,255,255,.82);
}
.footer-tags a:hover{border-color:var(--cyan);color:var(--cyan)}
.footer-title{color:#fff;font-size:.95rem;font-weight:700;margin:0 0 16px}
.footer-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-list a{font-size:.88rem;color:rgba(255,255,255,.7)}
.footer-list a:hover{color:var(--cyan)}
.footer-contact{list-style:none;padding:0;margin:0 0 18px;display:flex;flex-direction:column;gap:11px;font-size:.88rem}
.footer-contact span{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:.8rem;color:rgba(255,255,255,.5);
}

/* ============ RESPONSIVE ============ */
@media (max-width:1199.98px){
  .layout-row{grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:26px}
}
@media (max-width:991.98px){
  :root{--sec-pad:56px}
  .nav-links{
    display:none;
  }
  .nav-links.open{
    display:flex;flex-direction:column;align-items:flex-start;gap:6px;
    position:absolute;left:0;right:0;top:100%;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 18px 34px rgba(11,31,29,.12);
    padding:14px 20px 20px;
  }
  .nav-links.open a{padding:11px 0;width:100%;font-size:1rem;border-bottom:1px dashed var(--line)}
  .nav-links.open a:last-child{border-bottom:0}
  .nav-links.open a.active::after{width:18px;bottom:6px}
  .nav-toggle{display:inline-flex}
  .search-box{display:none}
  .layout-row{grid-template-columns:1fr}
  .side-panel{position:static}
  .contact-grid{grid-template-columns:1fr}
  .metric-row{grid-template-columns:repeat(2,1fr)}
  .metric-item:nth-child(2){border-right:0}
  .metric-item:nth-child(1),.metric-item:nth-child(2){border-bottom:1px dashed var(--line)}
  .cat-hero{padding:48px 0 78px}
}
@media (max-width:767.98px){
  body{font-size:15.5px}
  .brand-text small{display:none}
  .guide-card{grid-template-columns:1fr}
  .guide-card .thumb{min-height:186px}
  .rel-grid{grid-template-columns:1fr}
  .cta-band{padding:34px 24px}
  .cta-band .inner{flex-direction:column;align-items:flex-start}
  .contact-note{padding:26px}
  .form-card{padding:24px}
}
@media (max-width:575.98px){
  :root{--sec-pad:40px}
  .metric-row{grid-template-columns:1fr}
  .metric-item{border-right:0;border-bottom:1px dashed var(--line)}
  .metric-item:last-child{border-bottom:0}
  .hero-tags span{font-size:.78rem;padding:6px 12px}
  .cta-actions{width:100%}
  .cta-actions a{flex:1;justify-content:center}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
  --ink:#0B1F1D;
  --ink-2:#11443F;
  --cyan:#23C6A7;
  --orange:#FF7A45;
  --purple:#7B61FF;
  --bg:#F6F7F4;
  --dark:#0B1514;
  --card:#FFFFFF;
  --surface:#EEF2EF;
  --text:#15201E;
  --muted:#5D6B67;
  --line:#DDE5E1;
  --r-sm:8px;
  --r-btn:12px;
  --r-card:16px;
  --r-lg:20px;
  --sh:0 10px 28px rgba(11,31,29,.10);
  --sh-h:0 16px 36px rgba(11,31,29,.14);
  --sh-s:0 4px 12px rgba(11,31,29,.06);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:var(--font);font-size:16.5px;line-height:1.75;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--ink-2);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--cyan)}
ul{list-style:none;margin:0;padding:0}
p{margin:0 0 1.1em}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:800;color:var(--ink);letter-spacing:.2px}
h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.22}
h2{font-size:clamp(1.55rem,3.2vw,2.15rem);line-height:1.3}
h3{font-size:1.22rem;line-height:1.45;font-weight:700}
button,input,select,textarea{font-family:inherit;font-size:1rem}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(35,198,167,.35)}
.container{max-width:1200px;padding-left:20px;padding-right:20px}
.section{padding:72px 0}
.section-sm{padding:52px 0}
.section-alt{background:var(--surface)}
.section-dark{background:var(--dark);color:#E7EFEC}
.section-dark h2,.section-dark h3{color:#FFFFFF}
.section-head{max-width:760px;margin-bottom:38px}
.section-head p{color:var(--muted);margin-bottom:0}
.section-dark .section-head p{color:#9FB5AF}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:.8rem;font-weight:700;
  letter-spacing:.14em;color:var(--ink-2);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--orange);border-radius:2px}
.section-dark .eyebrow{color:var(--cyan)}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(246,247,244,.92);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled{box-shadow:0 8px 22px rgba(11,31,29,.08);background:rgba(246,247,244,.98)}
.header-inner{display:flex;align-items:center;gap:22px;height:64px;transition:height .25s ease}
.site-header.scrolled .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--ink-2),var(--ink));
  color:#FFFFFF;font-weight:800;font-size:1.05rem;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(11,31,29,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:1.02rem;color:var(--ink);font-weight:800;letter-spacing:.2px}
.brand-text small{font-size:.7rem;color:var(--muted);letter-spacing:.16em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:6px}
.nav-links a{
  position:relative;padding:8px 14px;border-radius:var(--r-btn);
  font-size:.95rem;font-weight:600;color:var(--ink-2);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--cyan);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-links a:hover{background:rgba(35,198,167,.10);color:var(--ink-2)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);background:rgba(35,198,167,.14)}
.nav-links a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.header-search{position:relative;display:flex;align-items:center}
.header-search input{
  width:190px;border:1px solid var(--line);background:#FFFFFF;border-radius:999px;
  padding:9px 40px 9px 16px;font-size:.9rem;color:var(--text);transition:border-color .22s ease,box-shadow .22s ease,width .25s ease;
}
.header-search input::placeholder{color:#93A29D}
.header-search input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(35,198,167,.22);width:220px}
.header-search i{position:absolute;right:14px;color:var(--muted);font-size:.85rem;pointer-events:none}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--orange);color:#FFFFFF;font-weight:700;font-size:.92rem;
  padding:10px 20px;border-radius:var(--r-btn);border:none;cursor:pointer;
  box-shadow:0 8px 20px rgba(255,122,69,.28);transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
}
.btn-brand:hover{background:#F2682F;transform:translateY(-2px);color:#FFFFFF;box-shadow:0 12px 26px rgba(255,122,69,.34)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#FFFFFF;color:var(--ink);font-size:1.05rem;cursor:pointer;
}
.header-hot{
  border-top:1px solid var(--line);background:rgba(255,255,255,.6);
}
.header-hot .container{display:flex;align-items:center;gap:12px;height:40px;overflow-x:auto;white-space:nowrap}
.header-hot .hot-label{font-size:.78rem;font-weight:700;color:var(--muted);letter-spacing:.1em;flex:0 0 auto}
.hot-chip{
  display:inline-flex;align-items:center;gap:6px;font-size:.8rem;font-weight:600;color:var(--ink-2);
  background:#FFFFFF;border:1px solid var(--line);border-radius:999px;padding:4px 12px;transition:all .2s ease;
}
.hot-chip:hover{border-color:var(--cyan);color:var(--ink);background:rgba(35,198,167,.1)}

/* Hero */
.page-hero{
  position:relative;overflow:hidden;color:#FFFFFF;
  background-color:var(--ink);
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  padding:86px 0 78px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(11,31,29,.95) 0%,rgba(17,68,63,.86) 52%,rgba(11,21,20,.72) 100%);
}
.page-hero .container{position:relative;z-index:2}
.crumb{font-size:.85rem;color:#9FB5AF;margin-bottom:18px}
.crumb a{color:#C9DAD5}
.crumb a:hover{color:var(--cyan)}
.crumb span{color:var(--cyan);font-weight:600}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;border-radius:999px;padding:6px 14px;
  background:rgba(35,198,167,.16);border:1px solid rgba(35,198,167,.42);
  color:#7FE7D0;font-size:.8rem;font-weight:700;letter-spacing:.08em;margin-bottom:18px;
}
.page-hero h1{color:#FFFFFF;max-width:20em}
.page-hero h1 em{font-style:normal;color:var(--cyan)}
.page-hero .hero-lead{max-width:720px;color:#C9DAD5;font-size:1.03rem;margin:16px 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.45);color:#FFFFFF;font-weight:700;font-size:.92rem;background:transparent;
  transition:all .22s ease;
}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(35,198,167,.16);color:#FFFFFF;transform:translateY(-2px)}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:36px}
.hero-stat strong{display:block;font-size:1.6rem;font-weight:800;color:var(--cyan);font-variant-numeric:tabular-nums}
.hero-stat span{font-size:.84rem;color:#A9BEB9}

/* 标签筛选区 */
.tag-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:999px;
  background:#FFFFFF;border:1px solid var(--line);color:var(--ink-2);font-size:.9rem;font-weight:600;
  box-shadow:var(--sh-s);transition:all .22s ease;cursor:pointer;
}
.tag-pill i{color:var(--cyan);font-size:.85rem}
.tag-pill:hover{border-color:var(--cyan);transform:translateY(-2px);box-shadow:var(--sh)}
.tag-pill.active{background:var(--ink);border-color:var(--ink);color:#FFFFFF}
.tag-pill.active i{color:var(--cyan)}

/* 卡片网格 */
.grid-card{
  height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-s);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.grid-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:#CFE3DC}
.grid-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface)}
.grid-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.grid-card:hover .thumb img{transform:scale(1.03)}
.thumb-tag{
  position:absolute;left:14px;top:14px;background:rgba(11,31,29,.82);color:#FFFFFF;
  font-size:.75rem;font-weight:700;border-radius:999px;padding:4px 12px;backdrop-filter:blur(4px);
}
.grid-card .body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.grid-card h3{margin-bottom:10px}
.grid-card h3 a{color:var(--ink)}
.grid-card h3 a:hover{color:var(--ink-2)}
.grid-card .desc{color:var(--muted);font-size:.94rem;margin-bottom:16px;flex:1}
.meta-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:.8rem;color:var(--muted)}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 12px;
  font-size:.76rem;font-weight:700;background:rgba(35,198,167,.14);color:#12705D;
}
.badge-orange{background:rgba(255,122,69,.14);color:#C24E1E}
.badge-purple{background:rgba(123,97,255,.14);color:#4C39C4}

/* 说明区 */
.note-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.note-list{display:grid;gap:16px;margin-top:20px}
.note-item{
  display:flex;gap:14px;background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--sh-s);transition:transform .22s ease,box-shadow .22s ease;
}
.note-item:hover{transform:translateX(4px);box-shadow:var(--sh)}
.note-num{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;background:rgba(35,198,167,.14);
  color:var(--ink-2);font-weight:800;display:flex;align-items:center;justify-content:center;font-size:.92rem;
}
.note-item strong{display:block;color:var(--ink);font-size:1rem;margin-bottom:4px}
.note-item p{margin:0;color:var(--muted);font-size:.92rem}
.metric-panel{
  background:var(--ink);border-radius:var(--r-lg);padding:30px;color:#D8E6E2;
  box-shadow:0 20px 44px rgba(11,31,29,.24);
}
.metric-panel h3{color:#FFFFFF;margin-bottom:18px}
.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.metric-box{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-card);
  padding:16px 18px;
}
.metric-box strong{display:block;font-size:1.7rem;font-weight:800;color:var(--cyan);font-variant-numeric:tabular-nums;line-height:1.2}
.metric-box span{font-size:.83rem;color:#A9BEB9}
.metric-bar{height:8px;border-radius:999px;background:rgba(255,255,255,.12);overflow:hidden;margin-top:22px}
.metric-bar i{display:block;height:100%;width:72%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--orange))}

/* 限时入口 */
.limit-banner{
  position:relative;overflow:hidden;border-radius:var(--r-lg);color:#E7EFEC;
  background:linear-gradient(120deg,var(--dark) 0%,var(--ink-2) 100%);
  padding:46px 44px;box-shadow:0 22px 50px rgba(11,31,29,.26);
}
.limit-banner::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(35,198,167,.28),transparent 68%);
}
.limit-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center}
.limit-banner h2{color:#FFFFFF;margin-bottom:12px}
.limit-banner p{color:#A9BEB9;margin-bottom:22px}
.countdown{display:flex;gap:12px}
.cd-cell{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);
  padding:14px 10px;min-width:82px;text-align:center;
}
.cd-cell strong{
  display:block;font-size:1.85rem;font-weight:800;color:#FFFFFF;
  font-variant-numeric:tabular-nums;font-family:"SFMono-Regular",Consolas,monospace;line-height:1.1;
}
.cd-cell span{font-size:.76rem;color:#9FB5AF}
.progress-track{height:9px;border-radius:999px;background:rgba(255,255,255,.12);overflow:hidden;margin:24px 0 8px}
.progress-track i{display:block;height:100%;width:68%;background:linear-gradient(90deg,var(--cyan),#7FE7D0);border-radius:999px}
.progress-note{font-size:.82rem;color:#9FB5AF;margin-bottom:0}

/* 咨询表单 */
.contact-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.form-card{
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:.84rem;font-weight:700;color:var(--ink-2);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;background:#FBFCFB;
  padding:12px 14px;color:var(--text);transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.field textarea{min-height:118px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--cyan);background:#FFFFFF;box-shadow:0 0 0 3px rgba(35,198,167,.18);outline:none;
}
.form-tip{font-size:.82rem;color:var(--muted);margin:14px 0 0}
.form-msg{display:none;margin-top:14px;border-radius:10px;padding:11px 14px;font-size:.88rem;font-weight:600}
.form-msg.ok{display:block;background:rgba(35,198,167,.14);color:#12705D}
.form-msg.err{display:block;background:rgba(255,122,69,.14);color:#C24E1E}
.contact-points{display:grid;gap:14px;margin-top:22px}
.contact-points li{display:flex;gap:10px;color:var(--muted);font-size:.94rem}
.contact-points i{color:var(--cyan);margin-top:5px}

/* FAQ */
.faq-list{display:grid;gap:12px}
.faq-item{background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease}
.faq-item:hover{border-color:#CFE3DC;box-shadow:var(--sh-s)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:none;text-align:left;padding:20px 22px;cursor:pointer;
}
.faq-q h3{margin:0;font-size:1.03rem;color:var(--ink)}
.faq-q i{
  flex:0 0 auto;width:28px;height:28px;border-radius:8px;background:rgba(35,198,167,.14);
  color:var(--ink-2);display:flex;align-items:center;justify-content:center;font-size:.82rem;
  transition:transform .28s ease,background .28s ease,color .28s ease;
}
.faq-item.open .faq-q i{transform:rotate(135deg);background:var(--ink);color:#FFFFFF}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a p{margin:0;padding:0 22px 20px;color:var(--muted);font-size:.95rem}

/* 相关分类 */
.rel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.rel-card{
  display:flex;gap:18px;align-items:center;background:#FFFFFF;border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-s);transition:transform .24s ease,box-shadow .24s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h)}
.rel-card .icon{
  width:52px;height:52px;flex:0 0 auto;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--ink-2),var(--ink));color:var(--cyan);font-size:1.15rem;
}
.rel-card h3{margin-bottom:6px;font-size:1.05rem}
.rel-card p{margin:0;color:var(--muted);font-size:.9rem}

/* 页脚 */
.site-footer{background:var(--ink);color:#C9DAD5;padding:64px 0 26px;margin-top:0}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--cyan),#1A9E86);color:#04241F}
.footer-brand strong{color:#FFFFFF;font-size:1.05rem;font-weight:800}
.site-footer p{color:#9FB5AF;font-size:.92rem}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-tags a{
  font-size:.78rem;border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:4px 12px;color:#C9DAD5;
}
.footer-tags a:hover{border-color:var(--cyan);color:var(--cyan)}
.footer-title{color:#FFFFFF;font-size:.95rem;font-weight:800;margin-bottom:16px;letter-spacing:.06em}
.footer-list li{margin-bottom:10px}
.footer-list a{color:#9FB5AF;font-size:.9rem}
.footer-list a:hover{color:var(--cyan)}
.footer-contact li{color:#9FB5AF;font-size:.9rem;margin-bottom:10px}
.footer-contact span{color:#E7EFEC}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:20px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:.82rem;color:#7E938E;
}

@media (max-width:1199px){
  .header-search input{width:160px}
  .nav-links a{padding:8px 11px;font-size:.92rem}
}
@media (max-width:991px){
  .section{padding:56px 0}
  .section-sm{padding:44px 0}
  .header-inner{gap:12px}
  .nav-toggle{display:flex;align-items:center;justify-content:center}
  .nav-links{
    position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:4px;
    background:#FFFFFF;border-bottom:1px solid var(--line);padding:14px 20px 20px;
    box-shadow:0 16px 30px rgba(11,31,29,.12);
    display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px;border-radius:10px}
  .nav-links a::after{display:none}
  .header-search{display:none}
  .note-wrap,.contact-wrap,.limit-inner{grid-template-columns:1fr;gap:28px}
  .rel-grid{grid-template-columns:1fr}
  .page-hero{padding:64px 0 58px}
}
@media (max-width:575px){
  body{font-size:16px}
  .section{padding:40px 0}
  .section-sm{padding:34px 0}
  .container{padding-left:16px;padding-right:16px}
  .brand-text small{display:none}
  .brand-text strong{font-size:.95rem}
  .limit-banner{padding:30px 22px}
  .form-card{padding:22px}
  .metric-grid{grid-template-columns:1fr}
  .countdown{gap:8px}
  .cd-cell{min-width:66px;padding:10px 6px}
  .cd-cell strong{font-size:1.4rem}
  .hero-stats{gap:18px}
  .hero-stat strong{font-size:1.35rem}
  .footer-bottom{flex-direction:column}
}