/* roulang page: index */
:root{
  --cyan:#2FD1B8;
  --orange:#FF7A3D;
  --yellow:#FFD166;
  --bg:#14121F;
  --surface:#1B1930;
  --surface-2:#221F3A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#F3F1FF;
  --text-2:#A8A3C4;
  --text-3:#7A7694;
  --paper:#FBFAFF;
  --paper-text:#1F1D2E;
  --paper-text-2:#5B5870;
  --r-card:16px;
  --r-btn:12px;
  --r-io:12px;
  --r-img:14px;
  --sh:0 12px 28px rgba(0,0,0,.32);
  --sh-hover:0 20px 44px rgba(0,0,0,.44);
  --sec:96px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(1.5px 1.5px at 12% 18%, rgba(255,255,255,.30), transparent 60%),
    radial-gradient(1.5px 1.5px at 82% 9%, rgba(255,255,255,.22), transparent 60%),
    radial-gradient(1px 1px at 68% 62%, rgba(255,255,255,.18), transparent 60%),
    radial-gradient(1px 1px at 32% 88%, rgba(255,255,255,.16), transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:var(--cyan);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:#5fe6d1;}
img{max-width:100%;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
@media (min-width:1400px){.container{max-width:1320px;}}
section{position:relative;}
.sec{padding:var(--sec) 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.sec-title{font-size:clamp(22px,3vw,34px);line-height:1.3;font-weight:700;position:relative;padding-left:18px;}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--cyan);}
.sec-desc{color:var(--text-2);font-size:15px;max-width:640px;margin-top:12px;}
.more-link{color:var(--cyan);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.more-link span{transition:transform .22s ease;}
.more-link:hover span{transform:translateX(4px);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--cyan);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:14px;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-weight:600;font-size:15px;padding:12px 22px;min-height:44px;border:1px solid transparent;transition:all .22s ease;cursor:pointer;line-height:1.2;}
.btn-primary{background:var(--orange);color:#221208;box-shadow:0 8px 20px rgba(255,122,61,.24);}
.btn-primary:hover{background:#ff8f5c;color:#221208;transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,122,61,.34);}
.btn-outline{border-color:rgba(47,209,184,.55);color:var(--cyan);background:transparent;}
.btn-outline:hover{background:rgba(47,209,184,.10);color:var(--cyan);border-color:var(--cyan);}
.btn-ghost{background:transparent;color:var(--text);padding:12px 4px;border:none;}
.btn-ghost:hover{color:var(--cyan);}
.btn-ghost i{transition:transform .22s ease;font-style:normal;}
.btn-ghost:hover i{transform:translateX(4px);}
.btn-sm{padding:8px 16px;font-size:14px;min-height:38px;}
.btn-xs{padding:6px 14px;font-size:13px;min-height:32px;}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- topbar ---------- */
.topbar{background:#0E0C17;border-bottom:1px solid var(--line);font-size:13px;color:var(--text-3);height:36px;display:flex;align-items:center;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;}
.topbar-actions{display:flex;align-items:center;gap:18px;}
.topbar-actions a{color:var(--text-2);font-size:13px;}
.topbar-actions a:hover{color:var(--cyan);}

/* ---------- nav ---------- */
.mainnav{position:sticky;top:0;z-index:1030;background:rgba(20,18,31,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:19px;letter-spacing:.4px;}
.brand:hover{color:var(--text);}
.brand-mark{width:30px;height:30px;flex:0 0 30px;border-radius:9px;background:linear-gradient(140deg,var(--cyan),#1a8f7e);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;}
.brand-mark::after{content:"";position:absolute;width:22px;height:22px;border:2px solid rgba(20,18,31,.55);border-radius:50%;border-right-color:transparent;border-bottom-color:transparent;transform:rotate(-30deg);}
.brand-text em{font-style:normal;color:var(--cyan);}
.nav-list{display:flex;align-items:center;gap:28px;}
.nav-link{position:relative;display:inline-block;padding:6px 2px;color:var(--text-2);font-size:15px;font-weight:500;}
.nav-link::after{content:"";position:absolute;left:0;right:100%;bottom:-4px;height:2px;background:var(--cyan);border-radius:2px;transition:right .22s ease;}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{right:0;}
.nav-link.active{color:var(--text);font-weight:600;}
.nav-link.active::after{right:0;}
.nav-right{display:flex;align-items:center;gap:14px;}
.nav-toggle{display:none;background:transparent;border:1px solid var(--line-strong);border-radius:10px;color:var(--text);width:44px;height:44px;align-items:center;justify-content:center;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.offcanvas{background:var(--surface);color:var(--text);border-right:1px solid var(--line);}
.offcanvas-header{border-bottom:1px solid var(--line);}
.offcanvas-title{font-weight:700;font-size:17px;}
.offcanvas .nav-item-link{display:flex;align-items:center;min-height:48px;padding:0 4px;color:var(--text-2);font-size:16px;border-bottom:1px solid var(--line);}
.offcanvas .nav-item-link:hover,.offcanvas .nav-item-link.active{color:var(--cyan);}

/* ---------- hero ---------- */
.hero{padding:72px 0 64px;position:relative;overflow:hidden;}
.hero::before{content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(47,209,184,.14),transparent 65%);pointer-events:none;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative;z-index:2;}
.hero-status{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--cyan);background:rgba(47,209,184,.10);border:1px solid rgba(47,209,184,.30);border-radius:999px;padding:6px 14px;margin-bottom:22px;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(47,209,184,.16);}
.hero h1{font-size:clamp(28px,4.6vw,48px);line-height:1.25;font-weight:800;margin-bottom:20px;}
.hero h1 em{font-style:normal;color:var(--cyan);}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:30px;}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:40px;}
.hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;border-top:1px solid var(--line);padding-top:26px;}
.point-num{font-size:22px;font-weight:800;color:var(--text);font-variant-numeric:tabular-nums;}
.point-num span{color:var(--cyan);font-size:15px;font-weight:700;}
.point-label{font-size:13px;color:var(--text-3);margin-top:4px;line-height:1.6;}
.hero-visual{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--sh);}
.hero-visual img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-badge{position:absolute;top:16px;left:16px;background:rgba(14,12,23,.82);border:1px solid rgba(47,209,184,.36);color:var(--cyan);font-size:13px;font-weight:600;border-radius:999px;padding:6px 14px;backdrop-filter:blur(6px);}
.hero-fade{position:absolute;left:0;right:0;bottom:0;height:46%;background:linear-gradient(to top,rgba(20,18,31,.92),transparent);}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:46px;position:relative;z-index:2;}
.tag-pill{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-2);border:1px solid var(--line-strong);background:var(--surface);border-radius:999px;padding:7px 15px;transition:all .22s ease;}
.tag-pill:hover{color:var(--cyan);border-color:rgba(47,209,184,.45);transform:translateY(-2px);}

/* ---------- trust bar ---------- */
.trust{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:38px 0;}
.trust-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.trust-item{display:flex;gap:14px;align-items:flex-start;}
.trust-icon{width:40px;height:40px;flex:0 0 40px;border-radius:11px;background:rgba(47,209,184,.10);border:1px solid rgba(47,209,184,.24);display:flex;align-items:center;justify-content:center;color:var(--cyan);font-weight:700;font-size:15px;}
.trust-item h3{font-size:15px;font-weight:700;margin-bottom:4px;}
.trust-item p{font-size:13px;color:var(--text-3);line-height:1.7;}

/* ---------- ladder ---------- */
.ladder{position:relative;padding-left:34px;}
.ladder::before{content:"";position:absolute;left:9px;top:12px;bottom:12px;width:2px;background:linear-gradient(to bottom,rgba(47,209,184,.55),rgba(47,209,184,.05));}
.ladder-item{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px 26px;margin-bottom:20px;box-shadow:var(--sh);transition:all .22s ease;display:flex;align-items:center;gap:24px;flex-wrap:wrap;}
.ladder-item:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(47,209,184,.32);}
.ladder-item::before{content:"";position:absolute;left:-31px;top:38px;width:12px;height:12px;border-radius:50%;background:var(--bg);border:2px solid var(--cyan);}
.ladder-item:nth-child(2){padding-top:30px;padding-bottom:30px;}
.ladder-item:nth-child(3){padding-top:36px;padding-bottom:36px;}
.ladder-item:nth-child(4){padding-top:42px;padding-bottom:42px;}
.ladder-idx{font-size:26px;font-weight:800;color:var(--yellow);font-variant-numeric:tabular-nums;min-width:56px;}
.ladder-item:nth-child(2) .ladder-idx{font-size:30px;}
.ladder-item:nth-child(3) .ladder-idx{font-size:34px;}
.ladder-item:nth-child(4) .ladder-idx{font-size:38px;}
.ladder-body{flex:1 1 320px;min-width:220px;}
.ladder-body h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.ladder-body p{font-size:14px;color:var(--text-2);line-height:1.75;}
.ladder-badge{font-size:13px;font-weight:700;color:#221208;background:var(--orange);border-radius:999px;padding:6px 14px;white-space:nowrap;}
.ladder-badge.cyan{background:rgba(47,209,184,.16);color:var(--cyan);border:1px solid rgba(47,209,184,.36);}

/* ---------- compare ---------- */
.compare-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh);}
table.compare{width:100%;border-collapse:collapse;font-size:15px;}
table.compare th,table.compare td{padding:18px 22px;text-align:left;border-bottom:1px solid var(--line);}
table.compare thead th{font-size:15px;font-weight:700;color:var(--text);background:var(--surface-2);}
table.compare tbody th{font-weight:500;color:var(--text-2);width:26%;}
table.compare tbody tr{transition:background .22s ease;}
table.compare tbody tr:hover{background:rgba(47,209,184,.06);}
table.compare td{color:var(--text);font-weight:500;}
.col-rec{position:relative;background:rgba(255,122,61,.05);}
.col-rec::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--orange);}
.rec-badge{display:inline-block;font-size:12px;font-weight:700;color:#221208;background:var(--orange);border-radius:999px;padding:3px 10px;margin-left:8px;vertical-align:middle;}
.yes{color:var(--cyan);font-weight:700;}
.no{color:var(--text-3);}
.compare-cards{display:none;}

/* ---------- countdown ---------- */
.countdown-band{background:linear-gradient(100deg,#1D1A32,#241C24 70%,#1D1A32);border-top:1px solid var(--line);border-bottom:1px solid var(--line);position:relative;overflow:hidden;}
.countdown-band::before{content:"";position:absolute;left:8%;top:50%;width:180px;height:180px;transform:translateY(-50%);background:radial-gradient(circle,rgba(255,209,102,.12),transparent 65%);}
.countdown-band::after{content:"";position:absolute;right:6%;top:20%;width:120px;height:120px;background:radial-gradient(circle,rgba(47,209,184,.14),transparent 65%);}
.countdown-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:38px 0;flex-wrap:wrap;}
.countdown-text h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;margin-bottom:8px;}
.countdown-text p{color:var(--text-2);font-size:14px;}
.countdown-clock{display:flex;align-items:center;gap:10px;}
.clock-block{background:var(--orange);color:#221208;border-radius:12px;padding:8px 14px;font-size:24px;font-weight:800;font-variant-numeric:tabular-nums;min-width:64px;text-align:center;line-height:1.25;}
.clock-sep{color:var(--text-3);font-weight:800;}

/* ---------- news ---------- */
.post-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;height:100%;display:flex;flex-direction:column;box-shadow:var(--sh);transition:all .22s ease;}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(47,209,184,.30);}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .post-thumb img{transform:scale(1.05);}
.post-thumb::after{content:"";position:absolute;inset:auto 0 0 0;height:50%;background:linear-gradient(to top,rgba(20,18,31,.72),transparent);}
.post-badge{position:absolute;left:14px;bottom:12px;z-index:2;font-size:12px;font-weight:600;color:var(--cyan);background:rgba(14,12,23,.8);border:1px solid rgba(47,209,184,.34);border-radius:999px;padding:4px 12px;}
.post-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.post-body h3{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body h3 a{color:var(--text);}
.post-body h3 a:hover{color:var(--cyan);}
.post-sum{font-size:14px;color:var(--text-3);line-height:1.75;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);border-top:1px solid var(--line);padding-top:14px;margin-top:auto;}
.empty-state{text-align:center;padding:64px 24px;background:var(--surface);border:1px dashed var(--line-strong);border-radius:var(--r-card);}
.empty-state .empty-icon{width:56px;height:56px;margin:0 auto 18px;border-radius:50%;border:2px dashed rgba(47,209,184,.42);display:flex;align-items:center;justify-content:center;color:var(--cyan);font-size:22px;}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:22px;}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:1fr;gap:16px;max-width:920px;}
.accordion-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-btn);overflow:hidden;margin-bottom:14px;}
.accordion-button{background:var(--surface);color:var(--text);font-size:16px;font-weight:600;padding:20px 24px;box-shadow:none;border-radius:var(--r-btn);}
.accordion-button:not(.collapsed){background:var(--surface-2);color:var(--cyan);box-shadow:inset 3px 0 0 var(--cyan);font-weight:700;}
.accordion-button::after{filter:invert(1) sepia(1) saturate(3) hue-rotate(120deg);}
.accordion-button:focus{box-shadow:0 0 0 2px rgba(47,209,184,.45);}
.accordion-body{padding:6px 24px 24px;color:var(--text-2);font-size:15px;line-height:1.85;}

/* ---------- form ---------- */
.consult{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.consult-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:48px;}
.form-card{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{margin-bottom:20px;}
.field label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px;font-weight:500;}
.field label .req{color:var(--orange);margin-left:4px;}
.field input,.field select,.field textarea{width:100%;background:#151327;border:1px solid var(--line-strong);border-radius:var(--r-io);color:var(--text);padding:12px 14px;min-height:46px;transition:all .22s ease;}
.field textarea{min-height:120px;resize:vertical;line-height:1.75;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(47,209,184,.16);}
.field select option{background:#151327;color:var(--text);}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-3);line-height:1.7;}
.check-line input{width:16px;height:16px;min-height:auto;margin-top:4px;flex:0 0 16px;accent-color:var(--cyan);}
.form-tip{font-size:13px;color:var(--orange);margin-top:6px;min-height:18px;}
.trust-side h3{font-size:18px;font-weight:700;margin-bottom:16px;}
.trust-side ul{margin-bottom:26px;}
.trust-side li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.75;margin-bottom:12px;}
.trust-side li::before{content:"✓";color:var(--cyan);font-weight:700;flex:0 0 auto;}
.contact-box{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;}
.contact-box p{font-size:14px;color:var(--text-2);margin-bottom:8px;}
.contact-box strong{color:var(--text);font-weight:700;}

/* ---------- footer ---------- */
footer{background:#100E1B;border-top:1px solid var(--line);padding:64px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.foot-brand .brand{margin-bottom:16px;font-size:18px;}
.foot-brand p{font-size:14px;color:var(--text-3);line-height:1.8;max-width:320px;}
.foot-col h4{font-size:15px;font-weight:700;margin-bottom:18px;color:var(--text);}
.foot-col li{margin-bottom:11px;}
.foot-col a{font-size:14px;color:var(--text-3);}
.foot-col a:hover{color:var(--cyan);}
.foot-col p{font-size:14px;color:var(--text-3);line-height:1.8;}
.foot-bottom{border-top:1px solid var(--line);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3);}
.to-top{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:14px;border:1px solid rgba(47,209,184,.35);background:rgba(27,25,48,.92);color:var(--cyan);display:flex;align-items:center;justify-content:center;font-size:18px;opacity:0;visibility:hidden;transition:all .22s ease;z-index:1040;cursor:pointer;}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{background:var(--cyan);color:#14121F;transform:translateY(-3px);}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .hero-grid{gap:40px;}
  .foot-grid{grid-template-columns:1.2fr 1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  :root{--sec:72px;}
  .nav-list,.nav-right .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .hero{padding:52px 0 48px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{order:2;}
  .trust-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .consult-grid{grid-template-columns:1fr;gap:36px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  :root{--sec:56px;}
  .container{padding-left:16px;padding-right:16px;}
  .topbar .topbar-text{display:none;}
  .hero-points{grid-template-columns:1fr;gap:14px;}
  .compare-wrap{display:none;}
  .compare-cards{display:grid;grid-template-columns:1fr;gap:18px;}
  .plan-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh);}
  .plan-card .plan-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
  .plan-card h3{font-size:17px;}
  .plan-card dl{display:grid;grid-template-columns:auto 1fr;gap:8px 14px;margin:0;font-size:14px;}
  .plan-card dt{color:var(--text-3);}
  .plan-card dd{margin:0;color:var(--text);}
  .countdown-inner{flex-direction:column;align-items:flex-start;gap:20px;}
  .form-row{grid-template-columns:1fr;}
  .form-card{padding:22px;}
  .foot-grid{grid-template-columns:1fr;}
  .ladder{padding-left:26px;}
  .ladder-item{padding:22px 20px !important;}
  .ladder-item::before{left:-23px;}
}
@media (max-width:575.98px){
  .trust-grid{grid-template-columns:1fr;}
  .clock-block{font-size:20px;min-width:56px;padding:7px 10px;}
  .sec-head{margin-bottom:28px;}
}

/* roulang page: article */
:root{
  --bg:#14121F;
  --surface:#1B1930;
  --raise:#221F3A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#F3F1FF;
  --text2:#A8A3C4;
  --text3:#7A7694;
  --cyan:#2FD1B8;
  --orange:#FF7A3D;
  --yellow:#FFD166;
  --paper:#FBFAFF;
  --paper-text:#1F1D2E;
  --paper-sub:#5B5870;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --sh:0 12px 28px rgba(0,0,0,.32);
  --sh-hover:0 20px 44px rgba(0,0,0,.44);
  --ease:.22s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 520px at 78% -8%, rgba(47,209,184,.10), transparent 62%),
    radial-gradient(760px 420px at 6% 12%, rgba(255,122,61,.08), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
ul,ol{padding-left:1.15em}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--text)}
p{margin:0 0 1em}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1320px}}
@media (max-width:575px){.container{padding-left:16px;padding-right:16px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:rgba(0,0,0,.28);border-bottom:1px solid var(--line);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:36px;gap:16px}
.topbar-text{color:var(--text3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-actions{display:flex;align-items:center;gap:16px;flex-shrink:0}
.topbar-actions a{color:var(--text2)}
.topbar-actions a:hover{color:var(--cyan)}
@media (max-width:767px){.topbar-text{display:none}.topbar-inner{justify-content:flex-end}}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030}
.mainnav{background:rgba(20,18,31,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.2px}
.brand-text em{font-style:normal;color:var(--cyan)}
.brand-mark{position:relative;width:26px;height:26px;border-radius:50%;flex:0 0 26px;
  background:radial-gradient(circle at 32% 30%, rgba(47,209,184,.95), rgba(47,209,184,.12) 62%), var(--raise);
  border:1px solid rgba(47,209,184,.5)}
.brand-mark::after{content:"";position:absolute;inset:-5px;border-radius:50%;border:2px solid transparent;border-top-color:var(--cyan);transform:rotate(-28deg);opacity:.85}
.nav-list{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.nav-link{position:relative;display:inline-block;padding:10px 14px;border-radius:10px;color:var(--text2);font-size:15px;font-weight:500}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform var(--ease)}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text);font-weight:700}
.nav-link.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line-strong);border-radius:12px;background:transparent;position:relative}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{position:absolute;left:50%;transform:translateX(-50%);width:18px;height:2px;background:var(--text);border-radius:2px;content:""}
.nav-toggle span{top:21px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
@media (max-width:991px){
  .nav-list{display:none}
  .nav-toggle{display:inline-block}
  .nav-inner{min-height:64px}
}

/* ---------- 按钮 ---------- */
.btn{border-radius:var(--r-btn);font-weight:700;transition:all var(--ease);border:1px solid transparent;display:inline-flex;align-items:center;gap:8px;justify-content:center}
.btn-primary{
  --bs-btn-bg:var(--orange);--bs-btn-border-color:var(--orange);--bs-btn-color:#1B1008;
  --bs-btn-hover-bg:#ff8d58;--bs-btn-hover-border-color:#ff8d58;--bs-btn-hover-color:#1B1008;
  --bs-btn-active-bg:#e96a2f;--bs-btn-active-border-color:#e96a2f;--bs-btn-active-color:#1B1008;
  --bs-btn-disabled-bg:var(--orange);--bs-btn-disabled-border-color:var(--orange);--bs-btn-disabled-color:#1B1008;--bs-btn-disabled-opacity:.55;
  box-shadow:0 10px 24px rgba(255,122,61,.26);
}
.btn-primary:hover{box-shadow:0 16px 32px rgba(255,122,61,.34);transform:translateY(-2px)}
.btn-xs{font-size:13px;padding:5px 12px}
.btn-sm{font-size:14px;padding:8px 16px;min-height:40px}
.btn-lg{font-size:16px;padding:13px 26px;min-height:48px}
.btn-ghost{color:var(--cyan);border-color:rgba(47,209,184,.45);background:transparent}
.btn-ghost:hover{background:rgba(47,209,184,.12);color:#7FF0DC;border-color:var(--cyan)}
.btn-link-arrow{color:var(--text);padding:0;font-weight:600;gap:8px;background:none;border:none}
.btn-link-arrow i{color:var(--cyan);transition:transform var(--ease)}
.btn-link-arrow:hover{color:var(--cyan)}
.btn-link-arrow:hover i{transform:translateX(4px)}

/* ---------- 页头带 ---------- */
.page-head{position:relative;border-bottom:1px solid var(--line);overflow:hidden}
.page-head::before{content:"";position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center;opacity:.20}
.page-head::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,18,31,.55),rgba(20,18,31,.96))}
.page-head .container{position:relative;z-index:2;padding-top:34px;padding-bottom:34px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text3)}
.crumbs a{color:var(--text2)}
.crumbs a:hover{color:var(--cyan)}
.crumbs .sep{color:var(--text3);opacity:.6}
.crumbs .current{color:var(--text)}
.page-head h2{font-size:clamp(20px,2.6vw,28px);margin-top:14px}
.page-head .lead{color:var(--text2);font-size:14px;margin:8px 0 0;max-width:720px}

/* ---------- 文章布局 ---------- */
.section{padding:64px 0}
.section-tight{padding:44px 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
@media (max-width:991px){.article-layout{grid-template-columns:1fr;gap:24px}}

/* 文章头 */
.article-head{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh);margin-bottom:24px}
.badge-cat{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
  color:var(--cyan);background:rgba(47,209,184,.12);border:1px solid rgba(47,209,184,.35)}
.article-title{font-size:clamp(26px,3.6vw,38px);line-height:1.28;font-weight:800;margin:16px 0 14px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13.5px;color:var(--text3)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--cyan)}
.article-lead{margin-top:18px;padding:16px 18px;border-left:3px solid var(--cyan);border-radius:0 12px 12px 0;
  background:rgba(47,209,184,.07);color:var(--text2);font-size:15px}
.article-cover{margin-top:22px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);position:relative}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover::after{content:"";position:absolute;inset:auto 0 0 0;height:45%;background:linear-gradient(180deg,transparent,rgba(20,18,31,.72))}

/* 纸面正文 */
.paper{background:var(--paper);border-radius:var(--r-card);padding:52px 56px;box-shadow:var(--sh);color:var(--paper-text)}
@media (max-width:767px){.paper{padding:26px 20px}}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--paper-text)}
.article-body>*:last-child{margin-bottom:0}
.article-body p{margin:0 0 1.2em;color:#2C2A3D}
.article-body h2{font-size:24px;line-height:1.35;margin:2.2em 0 .8em;padding-left:14px;position:relative;color:var(--paper-text)}
.article-body h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;background:var(--cyan)}
.article-body h3{font-size:19px;margin:1.8em 0 .6em;color:var(--paper-text)}
.article-body h4{font-size:17px;margin:1.5em 0 .5em;color:var(--paper-text)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.3em}
.article-body li{margin-bottom:.5em;color:#2C2A3D}
.article-body a{color:#0E9C89;text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#0B6F62}
.article-body img{border-radius:var(--r-img);margin:1.4em 0;border:1px solid rgba(31,29,46,.10)}
.article-body blockquote{margin:1.6em 0;padding:16px 20px;border-left:3px solid var(--cyan);background:#F1F0F9;border-radius:0 12px 12px 0;color:var(--paper-sub)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body code{background:#EEEDF7;color:#2B2940;padding:2px 7px;border-radius:6px;font-size:.9em}
.article-body pre{background:#1B1930;color:#E9E7F5;padding:18px 20px;border-radius:12px;overflow:auto;font-size:14.5px;line-height:1.7;margin:1.6em 0}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th,.article-body td{border-bottom:1px solid #E3E1EF;padding:10px 12px;text-align:left}
.article-body th{background:#F1F0F9;font-weight:700;color:var(--paper-text)}
.article-body hr{border:0;border-top:1px solid #E3E1EF;margin:2em 0}

/* 空态 */
.empty-state{text-align:center;padding:56px 20px}
.empty-state .ico{width:64px;height:64px;margin:0 auto 18px;border-radius:50%;display:grid;place-items:center;
  background:rgba(47,209,184,.10);border:1px solid rgba(47,209,184,.35);color:var(--cyan);font-size:24px}
.empty-state h3{font-size:20px;color:var(--paper-text);margin-bottom:8px}
.empty-state p{color:var(--paper-sub);max-width:440px;margin:0 auto 20px}

/* 标签与分享 */
.article-foot{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;margin-top:34px;padding-top:22px;border-top:1px solid #E3E1EF}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-block;padding:5px 13px;border-radius:999px;font-size:13px;font-weight:600;color:#3B3950;background:#EFEEF7;border:1px solid #E1DFEE}
.tag:hover{color:#0E9C89;border-color:rgba(47,209,184,.6);background:#E8FBF7}
.share-row{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--paper-sub)}
.share-row a{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:#EFEEF7;border:1px solid #E1DFEE;color:#3B3950}
.share-row a:hover{color:#0E9C89;border-color:rgba(47,209,184,.6);transform:translateY(-2px)}

/* 侧栏 */
.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
@media (max-width:991px){.side{position:static}}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh)}
.side-card h3{font-size:16px;margin-bottom:14px;padding-left:12px;position:relative}
.side-card h3::before{content:"";position:absolute;left:0;top:.25em;bottom:.25em;width:3px;border-radius:3px;background:var(--cyan)}
.side-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}
.side-list a{display:flex;align-items:center;gap:8px;padding:9px 10px;border-radius:10px;color:var(--text2);font-size:14.5px}
.side-list a i{color:var(--cyan);font-size:12px}
.side-list a:hover{background:rgba(255,255,255,.05);color:var(--text)}
.side-tips{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text2)}
.side-tips li{display:flex;gap:9px}
.side-tips i{color:var(--cyan);margin-top:5px;font-size:12px}

/* 相关推荐 */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:24px}
@media (max-width:991px){.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:575px){.rel-grid{grid-template-columns:1fr}}
.card-x{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;height:100%;display:flex;flex-direction:column;transition:all var(--ease)}
.card-x:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(47,209,184,.35)}
.card-x .thumb{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.card-x .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.card-x:hover .thumb img{transform:scale(1.04)}
.card-x .thumb .badge-cat{position:absolute;top:12px;left:12px;background:rgba(20,18,31,.72);backdrop-filter:blur(6px)}
.card-x .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-x h3{font-size:17px;line-height:1.5}
.card-x h3 a:hover{color:var(--cyan)}
.card-x p{color:var(--text2);font-size:14px;margin:0}
.card-x .meta{margin-top:auto;font-size:13px;color:var(--text3);display:flex;gap:14px;align-items:center}

/* 返回入口 */
.back-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:34px}
@media (max-width:575px){.back-row{grid-template-columns:1fr}}
.back-cell{display:flex;align-items:center;gap:14px;padding:20px 22px;border:1px solid var(--line);border-radius:var(--r-card);
  background:linear-gradient(120deg,rgba(47,209,184,.08),rgba(255,122,61,.06));transition:all var(--ease)}
.back-cell:hover{transform:translateY(-3px);border-color:rgba(47,209,184,.4);box-shadow:var(--sh-hover)}
.back-cell i{font-size:18px;color:var(--cyan)}
.back-cell strong{display:block;font-size:16px}
.back-cell span{font-size:13.5px;color:var(--text2)}

/* 底部 CTA */
.cta-band{position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--r-card);
  background:linear-gradient(115deg,rgba(47,209,184,.14),rgba(255,122,61,.16)), var(--raise);padding:36px;box-shadow:var(--sh)}
.cta-band::after{content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;border:1px dashed rgba(255,255,255,.18)}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between}
.cta-inner h2{font-size:clamp(20px,2.6vw,26px);margin-bottom:8px}
.cta-inner p{color:var(--text2);font-size:14.5px;margin:0;max-width:560px}

/* 页脚 */
footer{border-top:1px solid var(--line);background:rgba(0,0,0,.22);margin-top:20px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding:52px 0 36px}
@media (max-width:991px){.foot-grid{grid-template-columns:1fr 1fr;gap:26px}}
@media (max-width:575px){.foot-grid{grid-template-columns:1fr}}
.foot-brand p{color:var(--text2);font-size:14px;margin-top:14px;max-width:340px}
.foot-col h4{font-size:15px;margin-bottom:14px;color:var(--text)}
.foot-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.foot-col a,.foot-col p{color:var(--text2);font-size:14px;margin:0}
.foot-col a:hover{color:var(--cyan)}
.foot-bottom{border-top:1px solid var(--line);padding:18px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;color:var(--text3);font-size:13px}

/* 移动菜单 */
.offcanvas{background:var(--surface);color:var(--text);border-right:1px solid var(--line)}
.offcanvas-header{border-bottom:1px solid var(--line)}
.offcanvas .m-link{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 4px;color:var(--text2);font-size:15.5px;border-bottom:1px solid var(--line)}
.offcanvas .m-link:hover,.offcanvas .m-link.active{color:var(--cyan)}

/* 返回顶部 */
.to-top{position:fixed;right:20px;bottom:24px;width:46px;height:46px;border-radius:14px;border:1px solid var(--line-strong);
  background:rgba(34,31,58,.92);color:var(--text);display:grid;place-items:center;z-index:1040;opacity:0;pointer-events:none;transition:all var(--ease)}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{color:var(--cyan);border-color:var(--cyan);transform:translateY(-3px)}

/* roulang page: category1 */
:root{
  --bg:#14121F;
  --surface:#1B1930;
  --surface-2:#221F3A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text:#F3F1FF;
  --text-2:#A8A3C4;
  --text-3:#7A7694;
  --teal:#2FD1B8;
  --teal-soft:rgba(47,209,184,.12);
  --orange:#FF7A3D;
  --yellow:#FFD166;
  --paper:#FBFAFF;
  --paper-text:#1F1D2E;
  --paper-text-2:#5B5870;
  --r-card:16px;
  --r-btn:12px;
  --r-input:12px;
  --r-img:14px;
  --shadow:0 12px 28px rgba(0,0,0,.32);
  --shadow-hover:0 20px 44px rgba(0,0,0,.44);
  --section:96px;
  --topbar-h:36px;
  --bs-body-bg:#14121F;
  --bs-body-color:#F3F1FF;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-link-color:#2FD1B8;
  --bs-link-hover-color:#5FE3CD;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--teal);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#5FE3CD}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;letter-spacing:.2px}
p{margin:0}
button{font-family:inherit}
::selection{background:rgba(47,209,184,.32);color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--section) 0}
.section-sm{padding:64px 0}
.section-head{margin-bottom:38px;position:relative;padding-left:16px}
.section-head::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:2px;background:var(--teal);border-radius:2px}
.section-head h2{font-size:clamp(22px,3vw,34px);font-weight:700;color:var(--text)}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15px;max-width:760px}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.16em;color:var(--teal);text-transform:uppercase;margin-bottom:12px}

/* 顶部信息条 */
.topbar{height:var(--topbar-h);background:#100E1A;border-bottom:1px solid var(--line);font-size:13px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-text{color:var(--text-3);letter-spacing:.4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-actions{display:flex;align-items:center;gap:16px}
.topbar-actions a{font-size:13px;color:var(--text-2)}
.topbar-actions a:hover{color:var(--teal)}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:1040}
.mainnav{
  background:rgba(20,18,31,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  min-height:72px;
  display:flex;
  align-items:center;
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text);font-weight:800}
.brand:hover{color:var(--text)}
.brand-mark{
  width:30px;height:30px;border-radius:50%;flex:none;position:relative;
  border:2px solid rgba(47,209,184,.28);
  background:radial-gradient(circle at 50% 50%, var(--yellow) 0 2px, transparent 2.6px);
}
.brand-mark::after{
  content:"";position:absolute;inset:-2px;border-radius:50%;
  border:2px solid transparent;border-top-color:var(--teal);border-right-color:var(--teal);
  transform:rotate(-45deg);
}
.brand-text{font-size:17px;letter-spacing:.5px}
.brand-text em{font-style:normal;color:var(--teal);margin-left:2px}
.nav-list{display:flex;align-items:center;gap:6px;margin:0}
.nav-link{
  display:inline-block;position:relative;color:var(--text-2);font-size:15px;
  padding:10px 14px;border-radius:10px;transition:color .22s ease,background .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--teal);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text)}
.nav-link.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-strong);background:transparent;
  border-radius:12px;position:relative;cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:12px;width:18px;height:2px;background:var(--text);border-radius:2px;transition:.22s ease;
}
.nav-toggle span{top:21px}
.nav-toggle span::before{top:-6px;left:0}
.nav-toggle span::after{top:6px;left:0}
.nav-toggle:hover{border-color:var(--teal)}

/* 按钮 */
.btn{
  border-radius:var(--r-btn);font-weight:700;line-height:1.4;border:1px solid transparent;
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease,color .22s ease,border-color .22s ease;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
}
.btn:focus,.btn:focus-visible{outline:2px solid var(--teal);outline-offset:2px;box-shadow:none}
.btn-primary{background:var(--orange);color:#22100A;border-color:var(--orange);box-shadow:0 8px 20px rgba(255,122,61,.26)}
.btn-primary:hover{background:#FF8B55;border-color:#FF8B55;color:#22100A;transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,122,61,.34)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:disabled{background:#6B4A3A;border-color:#6B4A3A;color:#D9C7BE;box-shadow:none;transform:none;cursor:not-allowed}
.btn-ghost{background:transparent;color:var(--teal);border-color:rgba(47,209,184,.5)}
.btn-ghost:hover{background:var(--teal-soft);color:#5FE3CD;border-color:var(--teal);transform:translateY(-2px)}
.btn-quiet{background:var(--surface-2);color:var(--text);border-color:var(--line-strong)}
.btn-quiet:hover{background:#2A2648;color:var(--text);border-color:rgba(47,209,184,.5)}
.btn-xs{padding:5px 12px;font-size:13px;border-radius:9px}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:14px 28px;font-size:16px}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--teal);font-size:15px}
.link-arrow svg{transition:transform .22s ease}
.link-arrow:hover svg{transform:translateX(4px)}
.link-arrow:hover{color:#5FE3CD}

/* 页面头带 */
.page-hero{
  position:relative;overflow:hidden;padding:56px 0 60px;
  background:
    linear-gradient(180deg,rgba(20,18,31,.78),rgba(20,18,31,.96)),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,209,184,.14),transparent 68%);pointer-events:none;
}
.breadcrumb-line{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.breadcrumb-line a{color:var(--text-3)}
.breadcrumb-line a:hover{color:var(--teal)}
.breadcrumb-line span.sep{color:var(--text-3);opacity:.6}
.breadcrumb-line .current{color:var(--text-2)}
.hero-grid{display:grid;grid-template-columns:1.55fr .85fr;gap:40px;align-items:end;position:relative;z-index:2}
.page-hero h1{font-size:clamp(28px,4.6vw,46px);line-height:1.25;font-weight:800;max-width:820px}
.page-hero .lead{margin-top:18px;color:var(--text-2);font-size:16px;max-width:680px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-side{display:flex;flex-direction:column;align-items:flex-start;gap:16px;justify-self:end;text-align:left}
.status-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  padding:7px 14px;border-radius:999px;background:rgba(47,209,184,.1);
  border:1px solid rgba(47,209,184,.4);color:var(--teal);
}
.status-badge i{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(47,209,184,.16);display:block}
.hero-meta{font-size:13px;color:var(--text-3);line-height:1.9}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;position:relative;z-index:2}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-2);
}
.tag:hover{border-color:rgba(47,209,184,.45);color:var(--text)}

/* 通用区块元素 */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow)}
.figure-card{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:var(--surface);
  box-shadow:var(--shadow);position:relative;
}
.figure-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.figure-card::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:42%;
  background:linear-gradient(180deg,transparent,rgba(20,18,31,.72));pointer-events:none;
}
.figure-caption{
  position:absolute;left:18px;bottom:16px;z-index:2;font-size:13px;color:var(--text-2);
}
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:52px;align-items:center}
.split-body h2{font-size:clamp(22px,3vw,32px);font-weight:700}
.split-body p{margin-top:18px;color:var(--text-2);font-size:16px}
.split-body p strong{color:var(--text);font-weight:700}
.split-body .btn{margin-top:26px}

/* 要点清单 */
.check-list{margin-top:26px;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.check-list li b{color:var(--text);font-weight:700}
.check-ico{
  width:20px;height:20px;flex:none;margin-top:6px;border-radius:50%;
  background:var(--teal-soft);border:1px solid rgba(47,209,184,.45);position:relative;
}
.check-ico::after{
  content:"";position:absolute;left:6px;top:3px;width:5px;height:9px;
  border-right:2px solid var(--teal);border-bottom:2px solid var(--teal);transform:rotate(45deg);
}

/* 确认清单卡片 */
.confirm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.confirm-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.confirm-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(47,209,184,.35)}
.confirm-card .num{
  display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;
  border-radius:10px;font-size:14px;font-weight:800;color:#241606;background:var(--yellow);
  margin-bottom:14px;
}
.confirm-card h3{font-size:17px;color:var(--text);margin-bottom:8px}
.confirm-card p{font-size:14px;color:var(--text-2);line-height:1.8}

/* 排查行列表 */
.fix-list{border-top:1px solid var(--line)}
.fix-row{
  display:grid;grid-template-columns:230px 1fr;gap:24px;align-items:start;
  padding:22px 8px;border-bottom:1px solid var(--line);transition:background .22s ease;
}
.fix-row:hover{background:rgba(255,255,255,.03)}
.fix-symptom{display:flex;gap:12px;align-items:center;font-weight:700;color:var(--text)}
.fix-symptom span{
  width:26px;height:26px;flex:none;border-radius:8px;background:rgba(255,122,61,.14);
  border:1px solid rgba(255,122,61,.4);color:var(--orange);font-size:13px;font-weight:800;
  display:inline-flex;align-items:center;justify-content:center;
}
.fix-action{color:var(--text-2);font-size:15px}
.fix-action em{font-style:normal;color:var(--teal)}

/* 纸面阅读提示卡 */
.paper-card{
  background:var(--paper);color:var(--paper-text);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--shadow);
}
.paper-card h3{font-size:20px;color:var(--paper-text);margin-bottom:14px}
.paper-card p{color:var(--paper-text-2);font-size:16px;line-height:1.9}
.paper-card ul{margin-top:16px;display:grid;gap:10px}
.paper-card li{color:var(--paper-text-2);font-size:15px;padding-left:18px;position:relative}
.paper-card li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--teal)}

/* FAQ */
.faq-wrap{max-width:920px}
.accordion-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:14px}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  background:transparent;color:var(--text);font-weight:700;font-size:16px;
  padding:20px 22px;box-shadow:none;line-height:1.6;
}
.accordion-button:not(.collapsed){
  background:var(--surface-2);color:var(--text);box-shadow:none;
  border-left:3px solid var(--teal);
}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--teal);outline-offset:-2px}
.accordion-button::after{
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232FD1B8'%3E%3Cpath d='M8 11.6 2.4 5.6h11.2z'/%3E%3C/svg%3E");
  width:14px;height:14px;background-size:14px;
}
.accordion-body{padding:6px 22px 24px;color:var(--text-2);font-size:15px;border-left:3px solid transparent}
.accordion-button:not(.collapsed)+.accordion-body{border-left:3px solid rgba(47,209,184,.28)}

/* CTA 带 */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;border:1px solid var(--line);
  padding:52px 44px;
  background:
    linear-gradient(100deg,rgba(20,18,31,.94) 30%,rgba(20,18,31,.72)),
    url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(22px,3vw,32px);font-weight:700;max-width:640px}
.cta-band p{margin-top:16px;color:var(--text-2);max-width:620px;font-size:16px}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}

/* 咨询表单 */
.form-panel{padding:34px}
.form-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:44px}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:700;color:var(--text);margin-bottom:8px}
.field label .req{color:var(--orange);margin-left:4px}
.field .hint{display:block;font-size:12px;color:var(--text-3);margin-top:6px}
.form-control,.form-select{
  width:100%;background:#15132A;border:1px solid var(--line-strong);color:var(--text);
  border-radius:var(--r-input);padding:12px 14px;font-size:15px;line-height:1.6;transition:.22s ease;
}
.form-control::placeholder{color:var(--text-3)}
.form-control:focus,.form-select:focus{
  background:#15132A;color:var(--text);border-color:var(--teal);
  box-shadow:0 0 0 3px rgba(47,209,184,.18);outline:none;
}
.form-select option{background:#1B1930;color:var(--text)}
textarea.form-control{min-height:120px;resize:vertical}
.check-line{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-2)}
.check-line input{width:18px;height:18px;margin-top:5px;accent-color:var(--teal);flex:none}
.err-msg{display:none;color:var(--orange);font-size:13px;margin-top:6px}
.err-msg.show{display:block}
.form-ok{
  display:none;margin-top:20px;padding:14px 16px;border-radius:12px;font-size:14px;
  background:rgba(47,209,184,.1);border:1px solid rgba(47,209,184,.4);color:var(--teal);
}
.trust-col{display:grid;gap:16px;align-content:start}
.trust-item{background:var(--surface-2);border:1px solid var(--line);border-radius:14px;padding:20px}
.trust-item h3{font-size:16px;margin-bottom:8px;color:var(--text)}
.trust-item p{font-size:14px;color:var(--text-2)}
.trust-item .kv{color:var(--teal);font-weight:700}

/* 页脚 */
footer{background:#100E1A;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.foot-brand p{margin-top:16px;color:var(--text-3);font-size:14px;max-width:320px}
.foot-col h4{font-size:15px;color:var(--text);margin-bottom:16px;font-weight:700}
.foot-col ul{display:grid;gap:10px}
.foot-col a{color:var(--text-2);font-size:14px}
.foot-col a:hover{color:var(--teal)}
.foot-col p{color:var(--text-2);font-size:14px;margin-bottom:8px}
.foot-bottom{
  margin-top:44px;border-top:1px solid var(--line);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  color:var(--text-3);font-size:13px;
}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:24px;width:46px;height:46px;border-radius:14px;
  background:var(--surface-2);border:1px solid var(--line-strong);color:var(--text);
  display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:1030;
  opacity:0;visibility:hidden;transform:translateY(10px);transition:.24s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:var(--teal);color:var(--teal)}

/* 移动端菜单 */
.offcanvas{background:var(--surface);color:var(--text)}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.offcanvas-title{font-size:16px;font-weight:800}
.offcanvas-body{padding:16px 20px 32px}
.mobile-nav{display:grid;gap:6px;margin-bottom:24px}
.mobile-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;
  color:var(--text-2);font-size:16px;font-weight:600;border:1px solid transparent;
}
.mobile-nav a:hover{background:rgba(255,255,255,.04);color:var(--text)}
.mobile-nav a.active{background:var(--teal-soft);border-color:rgba(47,209,184,.4);color:var(--teal)}
.btn-close{filter:invert(1) grayscale(1) brightness(1.6)}

@media (max-width:1199.98px){
  .confirm-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
  .foot-col:last-child{grid-column:span 3}
}
@media (max-width:991.98px){
  :root{--section:64px}
  .nav-list{display:none}
  .nav-toggle{display:block}
  .nav-cta{display:none}
  .hero-grid{grid-template-columns:1fr;align-items:start;gap:32px}
  .hero-side{justify-self:start}
  .split{grid-template-columns:1fr;gap:30px}
  .form-grid{grid-template-columns:1fr;gap:30px}
  .fix-row{grid-template-columns:1fr;gap:10px}
  footer{padding-top:52px}
}
@media (max-width:767.98px){
  .container{padding:0 16px}
  .topbar-text{display:none}
  .brand-text{font-size:16px}
  .page-hero{padding:40px 0 44px}
  .confirm-grid{grid-template-columns:1fr}
  .cta-band{padding:34px 22px;border-radius:16px}
  .form-panel{padding:22px}
  .paper-card{padding:22px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .foot-col:last-child{grid-column:auto}
  .hero-actions .btn{flex:1 1 auto}
}
@media (max-width:575.98px){
  :root{--section:56px}
  .page-hero h1{font-size:26px}
  .section-head{margin-bottom:26px}
  .accordion-button{font-size:15px;padding:17px 18px}
  .accordion-body{padding:4px 18px 20px}
}

/* roulang page: category2 */
:root{
  --bg:#14121F;
  --bg-deep:#0F0D19;
  --surface:#1B1930;
  --surface-2:#221F3A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --teal:#2FD1B8;
  --orange:#FF7A3D;
  --yellow:#FFD166;
  --text:#F3F1FF;
  --muted:#A8A3C4;
  --faint:#7A7694;
  --paper:#FBFAFF;
  --paper-text:#1F1D2E;
  --paper-muted:#5B5870;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-input:12px;
  --shadow:0 12px 28px rgba(0,0,0,.32);
  --shadow-hover:0 20px 44px rgba(0,0,0,.44);
  --container:1200px;
  --tr:.22s ease;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 18%, rgba(255,255,255,.35), transparent 60%),
    radial-gradient(1.5px 1.5px at 78% 8%, rgba(47,209,184,.35), transparent 60%),
    radial-gradient(1.5px 1.5px at 62% 74%, rgba(255,209,102,.28), transparent 60%),
    radial-gradient(1.5px 1.5px at 26% 88%, rgba(255,255,255,.22), transparent 60%);
  opacity:.7;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--tr),border-color var(--tr),background-color var(--tr),opacity var(--tr)}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding-left:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:4px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
@media (min-width:1400px){
  .container{max-width:1320px}
}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--bg-deep);
  border-bottom:1px solid var(--line);
  font-size:13px;
  line-height:1.6;
  position:relative;
  z-index:1040;
}
.topbar-inner{
  min-height:36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:5px;
  padding-bottom:5px;
}
.topbar-text{color:var(--faint);letter-spacing:.2px}
.topbar-actions{display:flex;align-items:center;gap:18px}
.topbar-actions > a:not(.btn){color:var(--muted)}
.topbar-actions > a:not(.btn):hover{color:var(--teal)}

/* ============ 主导航 ============ */
.mainnav{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(20,18,31,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  min-height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:26px;height:26px;border-radius:50%;
  border:2px solid transparent;
  border-top-color:var(--teal);
  border-right-color:var(--orange);
  transform:rotate(-32deg);
  position:relative;
  flex-shrink:0;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:7px;
  border-radius:50%;
  background:var(--yellow);
  opacity:.9;
}
.brand-text{
  font-size:19px;
  font-weight:800;
  letter-spacing:.5px;
  color:var(--text);
  white-space:nowrap;
}
.brand-text em{font-style:normal;color:var(--teal)}

.nav-list{
  display:flex;
  align-items:center;
  gap:6px;
  margin:0 auto;
}
.nav-link{
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  color:var(--muted);
  border-radius:10px;
  position:relative;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  background:var(--teal);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--tr);
  border-radius:2px;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1);left:18px}
.nav-link.active{color:var(--text);font-weight:700}
.nav-link.active::after{transform:scaleX(1)}

.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-btn);
  background:var(--surface);
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;
  left:50%;top:50%;
  width:18px;height:2px;
  background:var(--text);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:var(--tr);
  content:"";
}
.nav-toggle span::before{transform:translate(-50%,-6px)}
.nav-toggle span::after{transform:translate(-50%,6px)}
.nav-toggle:hover{border-color:var(--teal)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:11px 22px;
  border-radius:var(--radius-btn);
  font-weight:700;
  font-size:15px;
  border:1px solid transparent;
  transition:transform var(--tr),box-shadow var(--tr),background-color var(--tr),color var(--tr),border-color var(--tr),filter var(--tr);
  white-space:nowrap;
}
.btn-xs{min-height:30px;padding:4px 13px;font-size:13px;border-radius:9px}
.btn-sm{min-height:38px;padding:8px 18px;font-size:14px}
.btn-primary{background:var(--orange);color:#241207}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,122,61,.28);color:#241207}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-outline{background:transparent;border-color:var(--teal);color:var(--teal)}
.btn-outline:hover{background:rgba(47,209,184,.12);transform:translateY(-2px);color:var(--teal)}
.btn-ghost{background:transparent;color:var(--teal);padding:11px 4px;min-height:44px}
.btn-ghost .arw{transition:transform var(--tr)}
.btn-ghost:hover .arw{transform:translateX(4px)}
.btn-ghost:hover{box-shadow:inset 0 -2px 0 var(--teal)}

/* ============ 页头带 ============ */
.page-hero{
  position:relative;
  background-image:linear-gradient(115deg,rgba(20,18,31,.96) 0%,rgba(20,18,31,.82) 52%,rgba(20,18,31,.62) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(600px 320px at 88% 12%, rgba(47,209,184,.16), transparent 70%);
  pointer-events:none;
}
.page-hero-inner{
  position:relative;
  z-index:2;
  padding:44px 0 56px;
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--faint);
  margin-bottom:22px;
}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--teal)}
.crumb .sep{color:var(--line-strong)}
.crumb .now{color:var(--text)}

.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,.75fr);
  gap:40px;
  align-items:end;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:13px;
  font-weight:700;
  letter-spacing:1.4px;
  color:var(--teal);
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:22px;height:2px;
  background:var(--teal);
  border-radius:2px;
}
h1{
  font-size:clamp(28px,4.4vw,46px);
  line-height:1.26;
  font-weight:800;
  letter-spacing:.4px;
  margin-bottom:18px;
}
h1 .hl{color:var(--teal)}
.page-hero p.lead{
  font-size:16px;
  color:var(--muted);
  max-width:640px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-pills{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:30px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--muted);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:border-color var(--tr),color var(--tr);
}
.pill:hover{border-color:var(--teal);color:var(--text)}
.pill i{width:6px;height:6px;border-radius:50%;background:var(--teal);display:inline-block}

.hero-aside{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px;
  box-shadow:var(--shadow);
}
.hero-aside h3{font-size:16px;font-weight:700;margin-bottom:14px}
.aside-row{
  display:flex;
  justify-content:space-between;
  gap:12px;
  padding:11px 0;
  border-bottom:1px dashed var(--line);
  font-size:14px;
}
.aside-row:last-child{border-bottom:0;padding-bottom:0}
.aside-row span:first-child{color:var(--muted)}
.aside-row span:last-child{color:var(--text);font-weight:700}
.aside-row span.ok{color:var(--teal)}

/* ============ 通用板块 ============ */
.section{padding:88px 0;position:relative;z-index:1}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
h2{
  font-size:clamp(22px,3vw,34px);
  line-height:1.32;
  font-weight:700;
  letter-spacing:.3px;
  margin-bottom:14px;
}
.section-head p{color:var(--muted);font-size:15.5px}
h3{font-size:19px;line-height:1.45;font-weight:700}

/* ============ 全宽图带 ============ */
.band{
  position:relative;
  padding:96px 0;
  background-image:linear-gradient(90deg,rgba(15,13,25,.94) 0%,rgba(15,13,25,.78) 46%,rgba(15,13,25,.42) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.band-head{max-width:620px;margin-bottom:46px}
.band-head p{color:var(--muted);font-size:15.5px}
.band-list{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.band-item{
  background:rgba(27,25,48,.82);
  border:1px solid var(--line);
  border-left:3px solid var(--orange);
  border-radius:14px;
  padding:24px;
  backdrop-filter:blur(6px);
  transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.band-item:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.band-num{
  font-family:Inter,system-ui,sans-serif;
  font-size:30px;
  font-weight:800;
  color:var(--yellow);
  letter-spacing:1px;
  line-height:1;
  margin-bottom:14px;
  display:block;
}
.band-item h3{margin-bottom:9px}
.band-item p{font-size:14.5px;color:var(--muted)}

/* ============ 步骤时间轴 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  position:relative;
  margin-top:8px;
}
.steps::before{
  content:"";
  position:absolute;
  top:25px;
  left:9%;
  right:9%;
  height:2px;
  background:linear-gradient(90deg,rgba(47,209,184,.05),rgba(47,209,184,.55),rgba(255,122,61,.55),rgba(47,209,184,.05));
  border-radius:2px;
}
.step{position:relative;padding-top:58px}
.step-node{
  position:absolute;
  top:0;left:0;
  width:52px;height:52px;
  border-radius:14px;
  background:var(--bg);
  border:2px solid var(--teal);
  display:flex;align-items:center;justify-content:center;
  font-family:Inter,system-ui,sans-serif;
  font-size:20px;
  font-weight:800;
  color:var(--teal);
  z-index:2;
  transition:background-color var(--tr),color var(--tr),border-color var(--tr);
}
.step:hover .step-node{background:var(--teal);color:#0B1F1B;border-color:var(--teal)}
.step h3{margin-bottom:10px}
.step > p{font-size:14.5px;color:var(--muted);margin-bottom:16px}
.tick-list li{
  position:relative;
  padding-left:24px;
  font-size:14.5px;
  color:var(--muted);
  margin-bottom:9px;
  line-height:1.75;
}
.tick-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:12px;height:7px;
  border-left:2px solid var(--teal);
  border-bottom:2px solid var(--teal);
  transform:rotate(-45deg);
  border-radius:1px;
}
.tick-list li strong{color:var(--text);font-weight:700}

/* ============ 浅色纸面卡片 ============ */
.paper-card{
  background:var(--paper);
  color:var(--paper-text);
  border-radius:20px;
  overflow:hidden;
  display:grid;
  grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);
  box-shadow:0 26px 60px rgba(0,0,0,.45);
  border:1px solid rgba(255,255,255,.08);
}
.paper-media{position:relative;min-height:340px;overflow:hidden}
.paper-media img{width:100%;height:100%;object-fit:cover;border-right:1px solid rgba(0,0,0,.06)}
.paper-media::after{
  content:"";
  position:absolute;inset:auto 0 0 0;
  height:38%;
  background:linear-gradient(to top,rgba(15,13,25,.72),transparent);
}
.paper-body{padding:44px 46px}
.paper-body .eyebrow{color:#0E9E8A}
.paper-body .eyebrow::before{background:#0E9E8A}
.paper-body h2{color:var(--paper-text);margin-bottom:14px}
.paper-body > p{color:var(--paper-muted);font-size:15.5px;margin-bottom:26px}
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px 24px;
}
.check-grid li{
  position:relative;
  padding-left:26px;
  font-size:14.5px;
  color:var(--paper-text);
  line-height:1.7;
}
.check-grid li::before{
  content:"";
  position:absolute;
  left:0;top:8px;
  width:13px;height:8px;
  border-left:2px solid #0E9E8A;
  border-bottom:2px solid #0E9E8A;
  transform:rotate(-45deg);
  border-radius:1px;
}
.paper-note{
  margin-top:28px;
  padding:16px 18px;
  background:#F1EFFA;
  border-left:3px solid var(--orange);
  border-radius:10px;
  font-size:14.5px;
  color:var(--paper-muted);
}
.paper-note strong{color:var(--paper-text)}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
}
.accordion-button{
  background:transparent;
  color:var(--text);
  font-weight:700;
  font-size:16px;
  padding:18px 22px;
  box-shadow:none;
  transition:background-color var(--tr),color var(--tr);
}
.accordion-button:not(.collapsed){
  background:rgba(47,209,184,.07);
  color:#fff;
  box-shadow:inset 3px 0 0 var(--teal);
}
.accordion-button:focus{box-shadow:inset 3px 0 0 var(--teal);border-color:transparent}
.accordion-button:hover{background:rgba(47,209,184,.05)}
.accordion-button::after{
  content:"";
  width:10px;height:10px;
  border-right:2px solid var(--teal);
  border-bottom:2px solid var(--teal);
  background-image:none;
  transform:rotate(45deg);
  transition:transform var(--tr);
  margin-left:auto;
  flex-shrink:0;
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg)}
.accordion-body{
  padding:4px 22px 22px;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
}

/* ============ CTA / 表单 ============ */
.cta-band{
  position:relative;
  background:linear-gradient(135deg,#1B1930 0%,#221F3A 62%,#1B1930 100%);
  border:1px solid var(--line);
  border-radius:22px;
  padding:52px;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,61,.22),transparent 68%);
  pointer-events:none;
}
.cta-grid{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:48px;
  position:relative;
  z-index:1;
}
.cta-copy h2{margin-bottom:14px}
.cta-copy p{color:var(--muted);font-size:15.5px;margin-bottom:24px;max-width:460px}
.trust-list li{
  display:flex;
  gap:11px;
  align-items:flex-start;
  font-size:14.5px;
  color:var(--muted);
  margin-bottom:12px;
}
.trust-list li b{
  width:7px;height:7px;border-radius:50%;
  background:var(--orange);
  margin-top:10px;
  flex-shrink:0;
}
.trust-list li strong{color:var(--text);font-weight:700}

.form-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
}
.form-card h3{font-size:17px;margin-bottom:18px}
.field{margin-bottom:16px}
.field label{
  display:block;
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:7px;
}
.field label .req{color:var(--orange)}
.form-control,.form-select{
  width:100%;
  background:var(--surface-2);
  border:1px solid var(--line-strong);
  color:var(--text);
  border-radius:var(--radius-input);
  padding:12px 14px;
  font-size:15px;
  min-height:46px;
  transition:border-color var(--tr),box-shadow var(--tr),background-color var(--tr);
}
.form-control::placeholder{color:var(--faint)}
.form-control:focus,.form-select:focus{
  background:var(--surface-2);
  color:var(--text);
  border-color:var(--teal);
  box-shadow:0 0 0 3px rgba(47,209,184,.18);
  outline:none;
}
.form-select option{background:var(--surface-2);color:var(--text)}
textarea.form-control{min-height:104px;resize:vertical}
.check-line{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13.5px;
  color:var(--muted);
  margin:6px 0 18px;
}
.check-line input{width:17px;height:17px;margin-top:4px;accent-color:var(--teal);flex-shrink:0}
.form-tip{font-size:13px;color:var(--orange);margin-top:6px;display:none}
.form-tip.show{display:block}
.form-status{
  display:none;
  margin-top:14px;
  padding:12px 14px;
  border-radius:10px;
  font-size:14px;
  background:rgba(47,209,184,.1);
  border:1px solid rgba(47,209,184,.35);
  color:var(--teal);
}
.form-status.show{display:block}
.btn.is-loading{opacity:.72;pointer-events:none}

/* ============ 页脚 ============ */
footer{
  background:var(--bg-deep);
  border-top:1px solid var(--line);
  margin-top:96px;
  position:relative;
  z-index:1;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;
  padding:64px 0 44px;
}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{color:var(--muted);font-size:14.5px;max-width:340px}
.foot-col h4{
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
  color:var(--text);
}
.foot-col ul li{margin-bottom:10px}
.foot-col ul li a{color:var(--muted);font-size:14.5px}
.foot-col ul li a:hover{color:var(--teal)}
.foot-col p{color:var(--muted);font-size:14.5px;margin-bottom:9px}
.foot-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
  font-size:13px;
  color:var(--faint);
}

/* ============ 移动端菜单 ============ */
.offcanvas.offcanvas-end{background:var(--surface);color:var(--text);width:300px;border-left:1px solid var(--line)}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.offcanvas-title{font-size:16px;font-weight:700}
.btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7}
.offcanvas-body{padding:14px 20px 30px}
.m-nav li{border-bottom:1px solid var(--line)}
.m-nav a{
  display:flex;
  align-items:center;
  min-height:48px;
  font-size:15px;
  color:var(--muted);
}
.m-nav a.active,.m-nav a:hover{color:var(--teal)}
.m-nav + .btn{width:100%;margin-top:22px}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;
  right:22px;bottom:26px;
  width:46px;height:46px;
  border-radius:14px;
  border:1px solid var(--line-strong);
  background:var(--surface);
  color:var(--teal);
  font-size:17px;
  display:flex;align-items:center;justify-content:center;
  opacity:0;
  pointer-events:none;
  transition:opacity var(--tr),transform var(--tr),border-color var(--tr);
  z-index:1020;
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-3px);border-color:var(--teal)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-aside{max-width:520px}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .cta-band{padding:42px}
}
@media (max-width:991.98px){
  .nav-list{display:none}
  .nav-toggle{display:block}
  .nav-cta{display:none}
  .nav-inner{min-height:64px}
  .band-list{grid-template-columns:1fr 1fr}
  .paper-card{grid-template-columns:1fr}
  .paper-media{min-height:240px}
  .paper-media img{height:240px;border-right:0}
  .paper-body{padding:34px 30px}
  .steps{grid-template-columns:1fr;gap:30px}
  .steps::before{display:none}
  .step{padding-top:0;padding-left:70px;min-height:52px}
  .step-node{top:0;left:0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767.98px){
  .section{padding:60px 0}
  .band{padding:66px 0}
  .band-list{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .cta-band{padding:30px 22px;border-radius:18px}
  .form-card{padding:20px}
  .topbar-text{display:none}
  .topbar-inner{justify-content:flex-end}
  .foot-bottom{justify-content:flex-start;gap:6px}
}
@media (max-width:575.98px){
  .container{padding:0 16px}
  h1{font-size:27px}
  .page-hero-inner{padding:32px 0 44px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .hero-actions .btn-ghost{width:auto}
  .paper-body{padding:26px 20px}
  .foot-grid{grid-template-columns:1fr;padding:48px 0 32px}
  .accordion-button{font-size:15px;padding:16px 18px}
  .accordion-body{padding:2px 18px 18px}
  .step{padding-left:0;padding-top:64px}
  .step-node{left:0}
}

/* roulang page: category3 */
:root{
  --star:#2FD1B8;
  --star-soft:rgba(47,209,184,.12);
  --star-line:rgba(47,209,184,.38);
  --orange:#FF7A3D;
  --orange-soft:rgba(255,122,61,.14);
  --dust:#FFD166;
  --bg:#14121F;
  --surface:#1B1930;
  --raise:#221F3A;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --text:#F3F1FF;
  --muted:#A8A3C4;
  --weak:#7A7694;
  --paper:#FBFAFF;
  --paper-text:#1F1D2E;
  --paper-muted:#5B5870;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --sh:0 12px 28px rgba(0,0,0,.32);
  --sh-hover:0 20px 44px rgba(0,0,0,.44);
  --gap:24px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--star);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#5ee6cf}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.3;font-weight:700;color:var(--text)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--star);outline-offset:2px;border-radius:6px}

/* 容器 */
.container{
  width:100%;
  max-width:1240px;
  padding-left:24px;
  padding-right:24px;
  margin:0 auto;
  --bs-gutter-x:0;
}
@media(max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
}

/* 按钮 */
.btn{
  --bs-btn-border-radius:var(--r-btn);
  font-weight:600;
  letter-spacing:.02em;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{
  --bs-btn-bg:var(--orange);
  --bs-btn-border-color:var(--orange);
  --bs-btn-color:#1A1224;
  --bs-btn-hover-bg:#ff8d58;
  --bs-btn-hover-border-color:#ff8d58;
  --bs-btn-hover-color:#1A1224;
  --bs-btn-active-bg:#e96a2f;
  --bs-btn-active-border-color:#e96a2f;
  --bs-btn-active-color:#1A1224;
  --bs-btn-disabled-bg:rgba(255,122,61,.45);
  --bs-btn-disabled-border-color:transparent;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,122,61,.28)}
.btn-sm{padding:.55rem 1.15rem;font-size:.9rem}
.btn-xs{padding:.3rem .8rem;font-size:.78rem;border-radius:999px;line-height:1.5}
.btn-outline-star{
  background:transparent;
  border:1px solid var(--star-line);
  color:var(--star);
  padding:.62rem 1.3rem;
  border-radius:var(--r-btn);
  font-size:.94rem;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:.5rem;
}
.btn-outline-star:hover{background:var(--star-soft);color:#6fecd8;border-color:var(--star)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:.45rem;
  color:var(--text);font-weight:600;font-size:.94rem;
  border-bottom:2px solid transparent;padding-bottom:2px;
}
.btn-ghost i{transition:transform .22s ease;font-size:.8rem}
.btn-ghost:hover{color:var(--star);border-bottom-color:var(--star)}
.btn-ghost:hover i{transform:translateX(4px)}

/* 顶部信息条 */
.topbar{
  background:#100E1A;
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
  min-height:36px;
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:36px;flex-wrap:nowrap;
}
.topbar-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-actions{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar-actions a:first-child{color:var(--muted)}
.topbar-actions a:first-child:hover{color:var(--star)}
@media(max-width:767.98px){
  .topbar-text{display:none}
  .topbar-inner{justify-content:flex-end}
}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:1030}
.mainnav{
  background:rgba(20,18,31,.88);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:1.06rem;letter-spacing:.02em}
.brand:hover{color:var(--text)}
.brand-mark{
  width:26px;height:26px;border-radius:50%;flex:none;position:relative;
  background:
    radial-gradient(circle at 30% 28%, var(--dust) 0 2px, transparent 3px),
    conic-gradient(from 200deg, var(--star) 0deg, rgba(47,209,184,.05) 190deg, transparent 360deg);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.10);
}
.brand-text em{font-style:normal;color:var(--star);margin-left:2px}
.nav-list{display:flex;align-items:center;gap:6px;margin:0}
.nav-link{
  display:inline-block;
  color:var(--muted);font-size:.94rem;font-weight:500;
  padding:.55rem .8rem;border-radius:10px;position:relative;
}
.nav-link::after{
  content:"";position:absolute;left:.8rem;right:.8rem;bottom:.3rem;height:2px;
  background:var(--star);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--text);transform:translateY(-1px)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text);font-weight:700}
.nav-link.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-strong);
  background:var(--surface);border-radius:10px;position:relative;
}
.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after{
  content:"";position:absolute;left:12px;right:12px;height:2px;background:var(--text);border-radius:2px;
}
.nav-toggle::before{top:15px}
.nav-toggle span{top:21px}
.nav-toggle::after{top:27px}
@media(max-width:991.98px){
  .nav-list{display:none}
  .nav-toggle{display:block}
  .nav-inner{min-height:64px}
  .nav-cta{display:none}
}
.offcanvas.mobile-menu{background:var(--surface);color:var(--text);width:82vw;max-width:340px}
.mobile-menu .offcanvas-header{border-bottom:1px solid var(--line)}
.mobile-menu .btn-close{filter:invert(1) grayscale(1);opacity:.7}
.mobile-menu ul{margin-top:8px}
.mobile-menu li a{
  display:flex;align-items:center;min-height:48px;
  padding:0 4px;color:var(--muted);font-size:1rem;border-bottom:1px solid var(--line);
}
.mobile-menu li a.active{color:var(--star);font-weight:700}
.mobile-menu li a:hover{color:var(--text)}

/* 页头带 */
.page-hero{
  position:relative;
  padding:72px 0 64px;
  background:
    linear-gradient(180deg,rgba(20,18,31,.72),rgba(20,18,31,.96)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent,var(--star-line),transparent);
}
.breadcrumb-bar{font-size:13px;color:var(--weak);margin-bottom:18px}
.breadcrumb-bar a{color:var(--muted)}
.breadcrumb-bar a:hover{color:var(--star)}
.breadcrumb-bar .sep{margin:0 8px;color:var(--weak)}
.breadcrumb-bar .current{color:var(--text)}
.page-hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.9fr);gap:48px;align-items:center}
.page-hero h1{font-size:clamp(28px,4.1vw,44px);font-weight:800;letter-spacing:-.01em;margin-bottom:16px}
.page-hero h1 .hl{color:var(--star)}
.page-hero .lead{color:var(--muted);font-size:1.02rem;max-width:640px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:.3rem .85rem;border-radius:999px;font-size:.78rem;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--muted);
}
.pill.is-star{background:var(--star-soft);border-color:var(--star-line);color:#7defdb}
.page-hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh);
}
.hero-card h3{font-size:1.02rem;margin-bottom:14px}
.hero-card ul li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:.9rem;color:var(--muted);padding:.42rem 0;
}
.hero-card ul li i{color:var(--star);margin-top:.35rem;font-size:.8rem}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--orange-soft);border:1px solid rgba(255,122,61,.35);
  color:#ffb28c;font-size:.76rem;font-weight:700;
  padding:.28rem .7rem;border-radius:999px;margin-bottom:14px;
}
.hero-badge i{font-size:.5rem}
@media(max-width:991.98px){
  .page-hero{padding:52px 0 48px}
  .page-hero-grid{grid-template-columns:1fr;gap:32px}
}

/* 通用板块 */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{
  font-size:clamp(22px,3vw,32px);
  position:relative;padding-left:16px;margin-bottom:14px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;
  border-radius:3px;background:var(--star);
}
.section-head p{color:var(--muted);margin:0}
.section-head.row-head{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
@media(max-width:991.98px){.section{padding:60px 0}.section.tight{padding:48px 0}.section-head{margin-bottom:30px}}
@media(max-width:767.98px){.section{padding:52px 0}}

/* 快速定位卡 */
.focus-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.focus-card{
  background:var(--raise);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  position:relative;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.focus-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:var(--star-line)}
.focus-card .fnum{
  font-size:.78rem;font-weight:700;color:var(--dust);letter-spacing:.12em;margin-bottom:12px;display:block;
}
.focus-card h3{font-size:1.06rem;margin-bottom:10px}
.focus-card p{font-size:.92rem;color:var(--muted);margin:0}
@media(max-width:991.98px){.focus-grid{grid-template-columns:1fr 1fr}}
@media(max-width:575.98px){.focus-grid{grid-template-columns:1fr}}

/* 双列问答卡 */
.qa-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.qa-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid var(--star-line);
  border-radius:var(--r-card);
  padding:22px 24px;
  margin-bottom:var(--gap);
  transition:border-color .22s ease,background-color .22s ease,transform .22s ease;
}
.qa-item:hover{border-left-color:var(--star);background:#1E1C35;transform:translateY(-2px)}
.qa-item h3{font-size:1rem;margin-bottom:8px;display:flex;gap:10px;align-items:flex-start}
.qa-item h3 i{color:var(--star);font-size:.9rem;margin-top:.42rem}
.qa-item p{font-size:.92rem;color:var(--muted);margin:0}
@media(max-width:991.98px){.qa-columns{grid-template-columns:1fr}}
.qa-note{
  margin-top:8px;font-size:.85rem;color:var(--weak);
  display:flex;gap:8px;align-items:center;
}

/* 对比小表 */
.compare-wrap{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh);
}
.compare-scroll{overflow-x:auto}
table.compare{width:100%;border-collapse:collapse;min-width:660px}
table.compare th,table.compare td{
  padding:16px 20px;text-align:left;font-size:.92rem;
  border-bottom:1px solid var(--line);
}
table.compare thead th{
  background:#171529;color:var(--text);font-size:.86rem;font-weight:700;letter-spacing:.03em;
  white-space:nowrap;
}
table.compare thead th:first-child{color:var(--weak);font-weight:600}
table.compare tbody th{
  font-weight:600;color:var(--text);background:#181630;white-space:nowrap;font-size:.9rem;
}
table.compare tbody td{color:var(--muted)}
table.compare tbody tr:hover td,table.compare tbody tr:hover th{background:#22203C;color:var(--text)}
table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:0}
.tag-cell{display:inline-flex;align-items:center;gap:6px}
.tag-cell i.ok{color:var(--star)}
.tag-cell i.warn{color:var(--orange)}
.compare-foot{padding:16px 20px;font-size:.84rem;color:var(--weak);border-top:1px solid var(--line)}

/* 图文交错 */
.feature-row{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:56px;align-items:center;margin-bottom:72px;
}
.feature-row:last-child{margin-bottom:0}
.feature-row.reverse .feature-media{order:2}
.feature-media{
  border-radius:var(--r-img);overflow:hidden;position:relative;
  border:1px solid var(--line);box-shadow:var(--sh);
}
.feature-media img{width:100%;aspect-ratio:3/2;object-fit:cover}
.feature-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:44%;
  background:linear-gradient(180deg,rgba(20,18,31,0),rgba(20,18,31,.72));
  pointer-events:none;
}
.feature-text h3{font-size:1.28rem;margin-bottom:12px}
.feature-text p{color:var(--muted);font-size:.96rem}
.check-list{margin-top:18px}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:.94rem;color:var(--muted);padding:.4rem 0;
}
.check-list li i{color:var(--star);margin-top:.4rem;font-size:.82rem}
@media(max-width:991.98px){
  .feature-row{grid-template-columns:1fr;gap:28px;margin-bottom:48px}
  .feature-row.reverse .feature-media{order:0}
}

/* 步骤时间轴 */
.steps{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;position:relative;
}
.steps::before{
  content:"";position:absolute;left:0;right:0;top:19px;height:1px;
  background:linear-gradient(90deg,var(--star-line),rgba(255,255,255,.06));
}
.step{padding:0 22px 0 0;position:relative}
.step .dot{
  width:38px;height:38px;border-radius:50%;
  background:var(--raise);border:1px solid var(--star-line);color:var(--star);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:.9rem;margin-bottom:20px;position:relative;z-index:1;
}
.step h3{font-size:1rem;margin-bottom:8px}
.step p{font-size:.9rem;color:var(--muted);margin:0}
.step:hover .dot{background:var(--star);color:#10211E;border-color:var(--star)}
@media(max-width:991.98px){
  .steps{grid-template-columns:1fr 1fr;gap:28px 0}
  .steps::before{display:none}
}
@media(max-width:575.98px){
  .steps{grid-template-columns:1fr}
  .step{padding-right:0}
}

/* FAQ */
.faq-accordion .accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:14px;
  overflow:hidden;
}
.faq-accordion .accordion-button{
  background:transparent;color:var(--text);
  font-weight:600;font-size:.98rem;
  padding:20px 22px;box-shadow:none;
}
.faq-accordion .accordion-button::after{
  filter:invert(1) grayscale(1);opacity:.6;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--text);font-weight:700;
  background:transparent;
  box-shadow:inset 3px 0 0 var(--star);
}
.faq-accordion .accordion-button:focus{box-shadow:inset 3px 0 0 var(--star)}
.faq-accordion .accordion-body{
  color:var(--muted);font-size:.94rem;padding:0 22px 22px;border-top:1px solid var(--line);
  padding-top:18px;
}
.faq-accordion .accordion-button:hover{color:var(--star)}

/* CTA */
.cta-band{
  background:
    radial-gradient(900px 260px at 12% 0%,rgba(47,209,184,.14),transparent 62%),
    radial-gradient(700px 240px at 92% 100%,rgba(255,122,61,.14),transparent 60%),
    var(--raise);
  border:1px solid var(--line);
  border-radius:20px;
  padding:48px;
  display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.85fr);
  gap:44px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
.cta-band p{color:var(--muted);font-size:.98rem;margin-bottom:0}
.cta-band .actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta-side{
  background:rgba(20,18,31,.62);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
}
.cta-side h3{font-size:1rem;margin-bottom:14px}
.cta-side dl{margin:0}
.cta-side di{display:block}
.cta-side dt{font-size:.78rem;color:var(--weak);letter-spacing:.08em;margin-bottom:2px}
.cta-side dd{margin:0 0 14px;font-size:.95rem;color:var(--text)}
.cta-side dd:last-child{margin-bottom:0}
@media(max-width:991.98px){
  .cta-band{grid-template-columns:1fr;padding:32px;gap:28px}
}
@media(max-width:575.98px){
  .cta-band{padding:26px 20px;border-radius:16px}
}

/* 页脚 */
footer{
  background:#100E1A;
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  margin-top:24px;
}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;padding-bottom:40px;border-bottom:1px solid var(--line);
}
.foot-brand p{color:var(--muted);font-size:.9rem;margin:14px 0 0;max-width:320px}
.foot-col h4{font-size:.92rem;letter-spacing:.06em;color:var(--text);margin-bottom:16px}
.foot-col ul li{margin-bottom:10px}
.foot-col ul li a{color:var(--muted);font-size:.9rem}
.foot-col ul li a:hover{color:var(--star)}
.foot-col p{color:var(--muted);font-size:.9rem;margin:0 0 10px}
.foot-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding-top:24px;font-size:.83rem;color:var(--weak);
}
@media(max-width:991.98px){.foot-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:575.98px){
  footer{padding:48px 0 24px}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start}
}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:12px;
  background:var(--raise);border:1px solid var(--line-strong);color:var(--text);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:all .22s ease;z-index:1040;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{background:var(--star);color:#10211E;border-color:var(--star);transform:translateY(-3px)}
@media(max-width:575.98px){.to-top{right:14px;bottom:14px;width:42px;height:42px}}