/* roulang page: index */
:root{
  --bg:#071524;
  --surface:#0C2036;
  --surface-2:#0A1B2C;
  --glass:rgba(255,255,255,0.055);
  --glass-strong:rgba(255,255,255,0.085);
  --line:rgba(255,255,255,0.10);
  --line-soft:rgba(255,255,255,0.06);
  --primary:#1FB8D9;
  --primary-deep:#0E7C9A;
  --primary-soft:rgba(31,184,217,0.14);
  --accent:#FF5F8F;
  --text:#EAF3F8;
  --text-2:#9FB6C4;
  --text-3:#6C8494;
  --success:#3FD1A0;
  --warn:#FFB25E;
  --r-btn:12px;
  --r-cover:12px;
  --r-card:18px;
  --r-panel:20px;
  --r-pill:999px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset,0 18px 40px -20px rgba(0,0,0,.70);
  --shadow-hover:0 24px 48px -24px rgba(0,0,0,.80),0 0 0 1px rgba(31,184,217,.22);
  --s1:4px;--s2:8px;--s3:12px;--s4:16px;--s5:24px;--s6:32px;--s7:48px;--s8:64px;--s9:88px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;line-height:1.85;letter-spacing:0;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(620px 420px at 6% 2%,rgba(31,184,217,.16),transparent 70%),
    radial-gradient(760px 520px at 98% 98%,rgba(31,184,217,.10),transparent 72%);
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:#5CD2EC;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:600;letter-spacing:-0.01em;color:var(--text);line-height:1.35;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(31,184,217,.32);color:#fff;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;}
main{position:relative;z-index:1;}
.section{padding:var(--s9) 0;}
.section-sm{padding:var(--s8) 0;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,21,36,.72);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.scrolled{background:rgba(7,21,36,.88);border-bottom-color:rgba(255,255,255,.08);box-shadow:0 12px 32px -24px rgba(0,0,0,.9);}
.nav-wrap{display:flex;align-items:center;gap:var(--s5);height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:#04121C;font-size:15px;box-shadow:0 8px 20px -10px rgba(31,184,217,.85);
}
.brand-name{font-size:18px;font-weight:700;letter-spacing:0;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:var(--s5);margin-left:var(--s4);}
.nav-link-item{
  position:relative;color:var(--text-2);font-size:15.5px;padding:6px 2px;white-space:nowrap;
  transition:color .25s var(--ease);
}
.nav-link-item::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);
}
.nav-link-item:hover{color:var(--text);}
.nav-link-item:hover::after,.nav-link-item.active::after{transform:scaleX(1);}
.nav-link-item.active{color:var(--text);font-weight:600;}
.nav-right{display:flex;align-items:center;gap:var(--s3);margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  width:200px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  transition:width .3s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-search i{color:var(--text-3);font-size:13px;}
.nav-search input{
  flex:1;min-width:0;background:transparent;border:0;outline:none;
  font-size:14px;color:var(--text);
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search:focus-within{width:260px;border-color:rgba(31,184,217,.55);box-shadow:0 0 0 3px rgba(31,184,217,.16);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 16px;
  border-radius:var(--r-btn);border:1px solid var(--line);background:var(--glass);
  color:var(--text-2);font-size:14.5px;transition:all .25s var(--ease);
}
.btn-ghost:hover{border-color:rgba(31,184,217,.55);color:var(--primary);background:var(--glass-strong);}
.btn-glow{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:42px;padding:0 20px;border-radius:var(--r-btn);border:0;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04121C;font-weight:600;font-size:15px;white-space:nowrap;
  box-shadow:0 8px 24px -12px rgba(31,184,217,.9);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-glow:hover{color:#04121C;transform:translateY(-2px);box-shadow:0 10px 30px -6px rgba(31,184,217,.55);}
.btn-glow:active{transform:translateY(0);box-shadow:0 6px 18px -10px rgba(31,184,217,.6);}
.btn-glow::after{
  content:"";position:absolute;inset:-2px;border-radius:inherit;
  background:radial-gradient(closest-side,rgba(31,184,217,.42),transparent);
  opacity:.7;z-index:-1;animation:breath 2.4s ease-in-out infinite;
}
@keyframes breath{0%,100%{opacity:.35;transform:scale(1);}50%{opacity:.85;transform:scale(1.05);}}
.nav-toggle{
  width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:var(--glass);color:var(--text);display:grid;place-items:center;cursor:pointer;
}
.nav-toggle:hover{border-color:rgba(31,184,217,.5);color:var(--primary);}

.offcanvas.nav-drawer{background:var(--surface);color:var(--text);border-left:1px solid var(--line);width:min(340px,86vw);}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line-soft);padding:18px 22px;}
.nav-drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7;}
.drawer-links{display:flex;flex-direction:column;padding:8px 0;}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 22px;color:var(--text-2);font-size:16px;
  border-bottom:1px solid var(--line-soft);
}
.drawer-links a:hover,.drawer-links a.active{color:var(--primary);background:var(--glass);}
.drawer-foot{padding:20px 22px;display:flex;flex-direction:column;gap:12px;}

/* ============ 按钮 ============ */
.btn-primary-cc{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);border:0;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04121C;font-weight:600;font-size:16px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
  box-shadow:0 10px 26px -14px rgba(31,184,217,.95);
}
.btn-primary-cc:hover{color:#04121C;transform:translateY(-2px);box-shadow:0 10px 30px -6px rgba(31,184,217,.55);}
.btn-primary-cc:active{transform:translateY(0);box-shadow:0 6px 16px -12px rgba(31,184,217,.7);}
.btn-glass{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  font-size:16px;font-weight:500;transition:all .25s var(--ease);
}
.btn-glass:hover{border-color:rgba(31,184,217,.6);color:var(--primary);background:var(--glass-strong);transform:translateY(-2px);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:15px;font-weight:500;}
.btn-text i{transition:transform .25s var(--ease);}
.btn-text:hover i{transform:translateX(4px);}

/* ============ 徽章 ============ */
.pill{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);font-size:13px;color:var(--text-2);
  letter-spacing:.02em;
}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 3px rgba(31,184,217,.18);}
.badge-cat{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(10,22,36,.72);border:1px solid rgba(255,95,143,.35);
  color:var(--accent);font-size:12.5px;backdrop-filter:blur(8px);
}
.badge-tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);color:var(--primary);font-size:12.5px;
}

/* ============ Hero ============ */
.hero{position:relative;padding:var(--s8) 0 var(--s9);overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(circle at 28% 24%,#000,transparent 76%);
  mask-image:radial-gradient(circle at 28% 24%,#000,transparent 76%);
  opacity:.5;
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:var(--s7);align-items:center;}
.hero-copy .pill{margin-bottom:var(--s5);}
.hero h1{font-size:clamp(28px,5vw,44px);font-weight:700;line-height:1.28;margin-bottom:var(--s5);}
.hero h1 .hl{color:var(--primary);}
.hero-sub{font-size:17.5px;color:var(--text-2);max-width:560px;margin-bottom:var(--s6);line-height:1.85;}
.hero-cta{display:flex;flex-wrap:wrap;gap:var(--s3);margin-bottom:var(--s7);}
.hero-stats{display:flex;flex-wrap:wrap;gap:var(--s5);padding-top:var(--s5);border-top:1px solid var(--line-soft);}
.hero-stat{min-width:112px;}
.hero-stat b{display:block;font-size:24px;font-weight:700;color:var(--text);line-height:1.3;}
.hero-stat span{font-size:13.5px;color:var(--text-3);}
.hero-stat + .hero-stat{border-left:1px solid var(--line-soft);padding-left:var(--s5);}

.hero-visual{position:relative;}
.hero-card{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(7,21,36,.35),rgba(7,21,36,.92)),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-card);
  padding:26px;
  min-height:400px;
  display:flex;flex-direction:column;justify-content:flex-end;gap:var(--s4);
}
.hero-card-title{font-size:19px;font-weight:600;}
.hero-card-desc{font-size:14.5px;color:var(--text-2);}
.glass-panel{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-panel);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.hero-mini{
  border-radius:16px;padding:14px 16px;
  background:rgba(12,32,54,.78);border:1px solid var(--line);
  display:flex;align-items:center;gap:12px;
}
.hero-mini i{color:var(--primary);font-size:16px;}
.hero-mini .t{font-size:14px;color:var(--text);}
.hero-mini .s{font-size:12.5px;color:var(--text-3);}
.float-card{
  position:absolute;border-radius:16px;padding:14px 16px;
  background:rgba(10,25,42,.92);border:1px solid var(--line);
  box-shadow:0 20px 40px -24px rgba(0,0,0,.9);
  min-width:170px;
}
.float-card.a{top:-18px;left:-22px;}
.float-card.b{bottom:-24px;right:-14px;}
.float-card .k{font-size:12.5px;color:var(--text-3);}
.float-card .v{font-size:19px;font-weight:700;color:var(--primary);}

/* ============ 状态条 ============ */
.status-band{border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);background:rgba(12,32,54,.42);}
.status-track{display:flex;align-items:center;gap:var(--s6);overflow-x:auto;padding:16px 0;scrollbar-width:none;}
.status-track::-webkit-scrollbar{display:none;}
.status-item{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:14.5px;color:var(--text-2);}
.status-item i{font-size:13px;color:var(--success);}
.status-item.warn i{color:var(--warn);}
.status-item strong{color:var(--text);font-weight:600;}

/* ============ 区块标题 ============ */
.sec-head{max-width:720px;margin-bottom:var(--s7);}
.sec-head h2{font-size:clamp(22px,3.4vw,30px);font-weight:600;margin-bottom:var(--s3);}
.sec-head p{color:var(--text-2);font-size:16px;}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--s5);flex-wrap:wrap;}

/* ============ 故事区 ============ */
.story{position:relative;background-image:linear-gradient(180deg,rgba(7,21,36,.92),rgba(7,21,36,.97)),url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center;}
.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--s7);align-items:start;}
.story-text h2{font-size:clamp(22px,3.4vw,30px);margin-bottom:var(--s5);}
.story-text p{color:var(--text-2);margin-bottom:var(--s4);}
.story-cards{display:grid;grid-template-columns:1fr;gap:var(--s4);}
.idea-card{
  border-radius:var(--r-card);padding:22px;background:var(--glass);border:1px solid var(--line);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.idea-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(31,184,217,.4);}
.idea-card i{color:var(--primary);font-size:18px;margin-bottom:10px;display:block;}
.idea-card h3{font-size:17px;margin-bottom:8px;}
.idea-card p{font-size:14.5px;color:var(--text-3);line-height:1.75;}

/* ============ 精选卡 ============ */
.feature-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:var(--s5);}
.feature-main{grid-row:span 2;}
.card-media{
  position:relative;border-radius:var(--r-cover);overflow:hidden;
  background:var(--surface-2);aspect-ratio:16/9;
}
.feature-main .card-media{aspect-ratio:16/10;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card-media .badge-cat{position:absolute;top:12px;left:12px;}
.card-body-cc{padding:20px 4px 4px;}
.card-title-cc{font-size:17px;font-weight:600;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-title-cc a{color:var(--text);}
.card-title-cc a:hover{color:var(--primary);}
.card-desc-cc{font-size:14.5px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px;}
.card-meta{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--text-3);border-top:1px solid var(--line-soft);padding-top:12px;}
.card-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);}
.card-meta .arrow{margin-left:auto;color:var(--primary);opacity:.7;transition:transform .25s var(--ease),opacity .25s var(--ease);}
.card-item{
  position:relative;overflow:hidden;border-radius:var(--r-card);padding:16px;
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  height:100%;
}
.card-item::after{
  content:"";position:absolute;top:0;left:-60%;width:45%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(31,184,217,.10),transparent);
  transition:left .6s var(--ease);pointer-events:none;
}
.card-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(31,184,217,.4);}
.card-item:hover::after{left:120%;}
.card-item:hover .card-media img{transform:scale(1.05);}
.card-item:hover .card-meta .arrow{transform:translateX(4px);opacity:1;}
.card-item.compact{padding:14px;}
.card-item.compact .card-title-cc{font-size:16px;}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s5);}
.empty-state{
  border-radius:var(--r-card);padding:56px 24px;text-align:center;
  background:var(--glass);border:1px dashed var(--line);
}
.empty-state i{font-size:26px;color:var(--text-3);display:block;margin-bottom:14px;}
.empty-state p{color:var(--text-2);margin-bottom:18px;}

/* ============ 信任背书 ============ */
.trust{background:var(--surface-2);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s4);}
.trust-card{
  border-radius:var(--r-card);padding:24px;background:var(--glass);border:1px solid var(--line);
  transition:border-color .3s var(--ease),transform .3s var(--ease);
}
.trust-card:hover{border-color:rgba(31,184,217,.4);transform:translateY(-3px);}
.trust-card b{display:block;font-size:28px;font-weight:700;color:var(--primary);margin-bottom:6px;}
.trust-card span{font-size:14.5px;color:var(--text-2);}
.trust-foot{margin-top:var(--s6);padding-top:var(--s5);border-top:1px solid var(--line-soft);display:flex;flex-wrap:wrap;gap:var(--s5);align-items:center;}
.trust-foot .item{font-size:14px;color:var(--text-3);display:flex;align-items:center;gap:8px;}
.trust-foot .item i{color:var(--text-3);font-size:13px;}

/* ============ 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s5);counter-reset:step;}
.step-card{position:relative;padding:26px 22px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--line);}
.step-card .idx{
  font-size:14px;font-weight:700;color:var(--primary);letter-spacing:.08em;
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:12px;border:1px solid rgba(31,184,217,.4);
  background:rgba(31,184,217,.10);margin-bottom:14px;
}
.step-card h3{font-size:17px;margin-bottom:8px;}
.step-card p{font-size:14.5px;color:var(--text-3);line-height:1.75;}

/* ============ CTA ============ */
.cta-band{position:relative;overflow:hidden;}
.cta-box{
  border-radius:var(--r-panel);padding:48px;position:relative;overflow:hidden;
  background:linear-gradient(140deg,rgba(12,32,54,.94),rgba(7,21,36,.94)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;border:1px solid var(--line);
  display:grid;grid-template-columns:1.1fr 1fr;gap:var(--s7);align-items:center;
}
.cta-box::before{
  content:"";position:absolute;width:320px;height:320px;right:-90px;top:-110px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(255,95,143,.22),transparent);
  pointer-events:none;
}
.cta-box h2{font-size:clamp(22px,3.4vw,30px);margin-bottom:var(--s3);}
.cta-box p{color:var(--text-2);}
.sub-form{display:flex;gap:10px;margin-top:18px;}
.sub-form input{
  flex:1;height:46px;padding:0 16px;border-radius:var(--r-btn);
  background:var(--glass);border:1px solid var(--line);color:var(--text);outline:none;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.sub-form input::placeholder{color:var(--text-3);}
.sub-form input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,184,217,.18);}
.form-label-cc{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:8px;}
.form-note{font-size:13px;color:var(--text-3);margin-top:12px;}

/* ============ FAQ ============ */
.faq-accordion .accordion-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;
}
.faq-accordion .accordion-button{
  background:transparent;color:var(--text);box-shadow:none;border:0;
  display:flex;align-items:center;gap:16px;padding:20px 22px;font-size:16.5px;font-weight:600;
  position:relative;text-align:left;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--primary);background:rgba(31,184,217,.05);}
.faq-accordion .accordion-button::after{display:none;}
.faq-accordion .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--primary);
}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 2px rgba(31,184,217,.35) inset;}
.faq-num{
  flex:0 0 auto;font-size:13px;font-weight:700;color:var(--primary);
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  border:1px solid rgba(31,184,217,.35);background:rgba(31,184,217,.08);
}
.faq-sign{margin-left:auto;flex:0 0 auto;font-size:18px;color:var(--text-2);line-height:1;width:20px;text-align:center;}
.faq-sign::before{content:"+";}
.faq-accordion .accordion-button:not(.collapsed) .faq-sign::before{content:"−";color:var(--primary);}
.faq-accordion .accordion-body{padding:0 22px 22px 72px;color:var(--text-2);font-size:15.5px;line-height:1.85;animation:fadeIn .35s var(--ease);}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ============ 页脚 ============ */
.site-footer{position:relative;z-index:1;margin-top:var(--s9);background:var(--surface-2);border-top:1px solid var(--line-soft);}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,184,217,.55),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:var(--s7);padding:var(--s8) 0 var(--s7);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-name{font-size:17px;}
.footer-desc{font-size:14.5px;color:var(--text-3);line-height:1.8;margin-bottom:18px;}
.social-row{display:flex;gap:10px;}
.social-row a{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);font-size:15px;
  transition:all .25s var(--ease);
}
.social-row a:hover{color:var(--primary);border-color:rgba(31,184,217,.5);transform:translateY(-2px);}
.footer-col h4{font-size:15.5px;margin-bottom:18px;color:var(--text);}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14.5px;color:var(--text-3);}
.footer-links a:hover{color:var(--primary);}
.footer-form .sub-form{margin-top:0;flex-wrap:wrap;}
.footer-form .sub-form input{min-width:150px;}
.footer-bottom{
  border-top:1px solid var(--line-soft);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13.5px;color:var(--text-3);}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom .links a{font-size:13.5px;color:var(--text-3);}
.footer-bottom .links a:hover{color:var(--primary);}
.to-top{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);cursor:pointer;
  transition:all .25s var(--ease);
}
.to-top:hover{color:var(--primary);border-color:rgba(31,184,217,.5);transform:translateY(-2px);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .hero-grid{gap:var(--s6);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:var(--s6);}
  .trust-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  .container{padding-left:24px;padding-right:24px;}
  .section{padding:var(--s8) 0;}
  .section-sm{padding:var(--s7) 0;}
  .nav-wrap{height:64px;}
  .hero{padding:var(--s7) 0 var(--s8);}
  .hero-grid{grid-template-columns:1fr;gap:var(--s7);}
  .hero-visual{order:2;}
  .hero-card{min-height:320px;}
  .float-card.a{top:-14px;left:0;}
  .float-card.b{bottom:-18px;right:0;}
  .story-grid{grid-template-columns:1fr;gap:var(--s6);}
  .feature-grid{grid-template-columns:1fr;}
  .feature-main{grid-row:auto;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;}
  .cta-box{grid-template-columns:1fr;padding:36px 28px;gap:var(--s6);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--s6);}
  .faq-accordion .accordion-body{padding-left:22px;}
}
@media (max-width:767.98px){
  body{font-size:16.5px;}
  .hero h1{font-size:clamp(26px,7vw,34px);}
  .hero-stats{gap:var(--s4);}
  .hero-stat + .hero-stat{padding-left:var(--s4);}
  .nav-search{display:none;}
  .news-grid{grid-template-columns:1fr;}
  .trust-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;padding:var(--s7) 0 var(--s6);}
  .section{padding:56px 0;}
  .card-desc-cc{-webkit-line-clamp:2;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-name{font-size:16.5px;}
  .hero-cta .btn-primary-cc,.hero-cta .btn-glass{width:100%;}
  .hero-stat b{font-size:20px;}
  .cta-box{padding:28px 20px;}
  .sub-form{flex-direction:column;}
  .sub-form .btn-primary-cc{width:100%;}
  .faq-accordion .accordion-button{padding:16px;gap:12px;font-size:15.5px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
/* ===================== 设计变量 ===================== */
:root{
  --bg:#071524;
  --bg-2:#0C2036;
  --glass:rgba(255,255,255,.055);
  --glass-2:rgba(255,255,255,.085);
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.18);
  --primary:#1FB8D9;
  --primary-deep:#0E7C9A;
  --primary-soft:rgba(31,184,217,.14);
  --accent:#FF5F8F;
  --accent-soft:rgba(255,95,143,.14);
  --text:#EAF3F8;
  --text-2:#9FB6C4;
  --text-3:#6C8494;
  --ok:#3FD1A0;
  --warn:#FFB25E;
  --ink:#04121C;

  --r-btn:12px;
  --r-img:12px;
  --r-card:18px;
  --r-glass:20px;
  --r-pill:999px;

  --sd-card:inset 0 1px 0 rgba(255,255,255,.04), 0 18px 40px -20px rgba(0,0,0,.70);
  --sd-hover:inset 0 1px 0 rgba(255,255,255,.06), 0 24px 48px -24px rgba(0,0,0,.80), 0 0 0 1px rgba(31,184,217,.22);

  --nav-h:68px;
  --max:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(920px 540px at 6% -8%, rgba(31,184,217,.16), transparent 62%),
    radial-gradient(780px 500px at 98% 42%, rgba(255,95,143,.07), transparent 66%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;}
a:hover{color:var(--primary);}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;
}
::selection{background:rgba(31,184,217,.32);color:#fff;}

/* ===================== 容器 ===================== */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
@media (max-width:1199.98px){
  .container{padding-left:24px;padding-right:24px;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
}

/* ===================== 导航 ===================== */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  height:var(--nav-h);
  display:flex;
  align-items:center;
  background:rgba(7,21,36,.70);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),backdrop-filter .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,21,36,.84);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom-color:rgba(255,255,255,.08);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:100%;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--text);
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:var(--ink);font-size:15px;
  box-shadow:0 6px 18px -8px rgba(31,184,217,.70);
}
.brand-name{
  font-size:18px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;
}
.nav-links{
  display:flex;align-items:center;gap:4px;margin:0 auto;
}
.nav-link-item{
  position:relative;
  padding:8px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  white-space:nowrap;
  transition:color .25s var(--ease);
}
.nav-link-item::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav-link-item:hover{color:var(--text);}
.nav-link-item:hover::after{transform:scaleX(1);}
.nav-link-item.active{color:var(--text);font-weight:600;}
.nav-link-item.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-box{position:relative;width:190px;transition:width .35s var(--ease);}
.search-box input{
  width:100%;height:40px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
  color:var(--text);font-size:14px;padding:0 16px 0 38px;outline:none;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.search-box input::placeholder{color:var(--text-3);}
.search-box i{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--text-3);pointer-events:none;
}
.search-box:focus-within{width:260px;}
.search-box:focus-within input{
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(31,184,217,.16);
  background:rgba(255,255,255,.075);
}
.btn-text-cc{
  display:inline-flex;align-items:center;gap:6px;
  height:40px;padding:0 10px;font-size:15px;color:var(--text-2);
  background:none;border:none;cursor:pointer;
  transition:color .25s var(--ease);
}
.btn-text-cc:hover{color:var(--primary);}
.btn-text-cc span{transition:transform .25s var(--ease);}
.btn-text-cc:hover span{transform:translateX(4px);}
.btn-glow{
  position:relative;
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 20px;border-radius:var(--r-btn);
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:var(--ink);font-size:14px;font-weight:600;
  overflow:hidden;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-glow::after{
  content:"";position:absolute;top:0;left:0;width:100%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.42),transparent);
  transform:translateX(-120%);
  animation:breathe 2.4s ease-in-out infinite;
  pointer-events:none;
}
@keyframes breathe{
  0%{transform:translateX(-120%);}
  55%,100%{transform:translateX(120%);}
}
.btn-glow:hover{
  color:var(--ink);
  transform:translateY(-2px);
  box-shadow:0 10px 30px -6px rgba(31,184,217,.55);
}
.header-mobile{display:flex;align-items:center;gap:10px;margin-left:auto;}
.icon-btn{
  width:40px;height:40px;border-radius:12px;
  display:inline-grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);
  color:var(--text-2);font-size:15px;cursor:pointer;
  transition:color .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:var(--primary);background:rgba(31,184,217,.08);}
.btn-glow-sm{
  display:inline-flex;align-items:center;justify-content:center;
  height:36px;padding:0 14px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:var(--ink);font-size:13px;font-weight:600;
}
.btn-glow-sm:hover{color:var(--ink);}

/* 移动端抽屉 */
.oc-nav{background:#0A1A2C;color:var(--text);border-left:1px solid var(--line);width:300px;}
.oc-nav .offcanvas-header{
  border-bottom:1px solid var(--line);padding:16px 20px;
}
.oc-nav .brand-name{font-size:17px;}
.oc-nav .offcanvas-body{padding:12px 20px 32px;}
.oc-link{
  display:flex;align-items:center;
  min-height:52px;padding:0 4px;
  font-size:16px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:color .25s var(--ease),padding-left .25s var(--ease);
}
.oc-link:hover,.oc-link.active{color:var(--primary);padding-left:12px;}

/* ===================== 按钮体系 ===================== */
.btn-primary-cc{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border:none;border-radius:var(--r-btn);
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:var(--ink);font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-primary-cc:hover{
  color:var(--ink);
  transform:translateY(-2px);
  box-shadow:0 10px 30px -6px rgba(31,184,217,.55);
}
.btn-primary-cc:active{
  transform:translateY(0);
  box-shadow:0 6px 18px -8px rgba(31,184,217,.45);
}
.btn-ghost-cc{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  background:var(--glass);border:1px solid var(--line);
  color:var(--text);font-size:15px;font-weight:500;
  transition:border-color .25s var(--ease),color .25s var(--ease),background .25s var(--ease);
}
.btn-ghost-cc:hover{
  border-color:var(--primary);color:var(--primary);background:rgba(31,184,217,.08);
}

/* ===================== 面包屑 ===================== */
.article-shell{padding:32px 0 88px;}
.breadcrumb-cc{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;color:var(--text-3);margin-bottom:28px;
}
.breadcrumb-cc a{color:var(--text-2);transition:color .2s var(--ease);}
.breadcrumb-cc a:hover{color:var(--primary);}
.breadcrumb-cc .sep{color:var(--text-3);}
.breadcrumb-cc .crumb-cur{
  max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-2);
}

/* ===================== 文章头部 ===================== */
.article-head{margin-bottom:36px;}
.head-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:18px;}
.badge-cat{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--accent-soft);border:1px solid rgba(255,95,143,.32);
  color:var(--accent);font-size:13px;font-weight:600;
}
.head-date{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;
}
.head-date::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 0 3px rgba(31,184,217,.16);
}
.article-title{
  font-size:clamp(28px,5vw,44px);
  font-weight:700;line-height:1.28;letter-spacing:-.01em;
  color:var(--text);margin-bottom:20px;
}
.lead-box{
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-card);padding:16px 20px;
}
.lead-box summary{
  cursor:pointer;list-style:none;font-size:14px;font-weight:600;color:var(--primary);
}
.lead-box summary::-webkit-details-marker{display:none;}
.lead-box summary::before{content:"＋";margin-right:8px;}
.lead-box[open] summary::before{content:"－";}
.lead-box p{
  margin-top:12px;font-size:15px;line-height:1.85;color:var(--text-2);
}
.head-divider{
  height:1px;margin-top:28px;
  background:linear-gradient(90deg,var(--primary),rgba(31,184,217,0));
}

/* ===================== 文章布局 ===================== */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:48px;
  align-items:start;
}
@media (min-width:992px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;}
  .article-side{position:sticky;top:calc(var(--nav-h) + 24px);}
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px;}
}
@media (max-width:991.98px){
  .article-side{order:-1;}
}

/* ===================== 正文排版 ===================== */
.article-content{
  max-width:760px;
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  word-break:break-word;
}
.article-content > *:first-child{margin-top:0;}
.article-content p{margin:0 0 1.2em;color:var(--text);}
.article-content h2{
  position:relative;
  font-size:clamp(22px,3.4vw,30px);
  font-weight:600;
  line-height:1.4;
  letter-spacing:-.01em;
  margin:40px 0 16px;
  padding-left:16px;
  color:var(--text);
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--primary-deep));
}
.article-content h3{
  font-size:19px;font-weight:600;line-height:1.5;
  margin:30px 0 12px;color:var(--text);
}
.article-content h4{
  font-size:17px;font-weight:600;margin:24px 0 10px;color:var(--text);
}
.article-content ul,.article-content ol{margin:0 0 1.2em;padding-left:1.4em;}
.article-content li{margin:.42em 0;}
.article-content li::marker{color:var(--primary);}
.article-content a{
  color:var(--primary);
  border-bottom:1px solid rgba(31,184,217,.35);
  transition:border-color .25s var(--ease),color .25s var(--ease);
}
.article-content a:hover{border-bottom-color:var(--primary);}
.article-content strong{color:#fff;font-weight:600;}
.article-content blockquote{
  margin:24px 0;padding:16px 20px;
  background:var(--glass);
  border-left:3px solid var(--primary);
  border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--text-2);
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{
  max-width:100%;height:auto;margin:24px auto;
  border-radius:var(--r-img);
  border:1px solid var(--line);
}
.article-content figure{margin:26px 0;}
.article-content figure img{margin:0 auto;}
.article-content figcaption{
  margin-top:10px;text-align:center;font-size:13px;color:var(--text-3);
}
.article-content hr{
  border:none;height:1px;margin:32px 0;
  background:linear-gradient(90deg,transparent,var(--line-2),transparent);
}
.article-content pre{
  margin:22px 0;padding:16px 18px;
  background:#04121C;border:1px solid var(--line);
  border-radius:var(--r-img);
  overflow-x:auto;font-size:14px;line-height:1.75;color:#CDE7F2;
}
.article-content code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.92em;
  background:rgba(31,184,217,.12);
  color:#8FE3F7;
  padding:2px 6px;border-radius:6px;
}
.article-content pre code{background:none;color:inherit;padding:0;}
.article-content table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;
}
.article-content th,.article-content td{
  padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);
}
.article-content th{
  background:var(--glass);color:var(--text);font-weight:600;
}
.article-content td{color:var(--text-2);}

/* ===================== 空状态 ===================== */
.empty-state{
  max-width:760px;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-glass);
  padding:56px 32px;text-align:center;
}
.empty-icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(31,184,217,.10);
  border:1px solid rgba(31,184,217,.28);
  color:var(--primary);font-size:24px;
}
.empty-state h2{
  font-size:22px;font-weight:600;color:var(--text);margin-bottom:10px;
}
.empty-state p{
  font-size:15px;color:var(--text-2);max-width:460px;margin:0 auto 24px;
}

/* ===================== 侧栏 ===================== */
.article-side{display:flex;flex-direction:column;gap:18px;}
.side-panel{
  position:relative;overflow:hidden;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-glass);
  padding:20px;
}
.side-panel::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:1px;
  background:linear-gradient(90deg,var(--primary),transparent);
}
.side-title{
  display:flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--text);margin-bottom:14px;
}
.side-title i{color:var(--primary);font-size:13px;}
.side-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;}
.side-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;line-height:1.75;color:var(--text-2);
}
.side-list li::before{
  content:"";flex:0 0 6px;width:6px;height:6px;margin-top:9px;border-radius:50%;
  background:var(--primary);opacity:.8;
}
.side-links{display:flex;flex-direction:column;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 0;font-size:14px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:color .25s var(--ease),padding-left .25s var(--ease);
}
.side-links a:last-child{border-bottom:none;}
.side-links a:hover{color:var(--primary);padding-left:6px;}
.side-links a i{font-size:11px;color:var(--text-3);}
.side-links a:hover i{color:var(--primary);}
.side-note{
  font-size:13px;line-height:1.8;color:var(--text-3);margin-top:12px;
}

/* ===================== 相关推荐 ===================== */
.rel-section{
  margin-top:64px;
  padding-top:48px;
  border-top:1px solid var(--line);
}
.section-head{margin-bottom:28px;}
.section-head h2{
  font-size:clamp(22px,3.4vw,30px);
  font-weight:600;letter-spacing:-.01em;color:var(--text);margin-bottom:8px;
}
.section-head p{font-size:15px;color:var(--text-2);}
.rel-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
@media (max-width:991.98px){
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:575.98px){
  .rel-grid{grid-template-columns:1fr;}
}
.card-cc{
  position:relative;
  display:flex;flex-direction:column;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  color:inherit;
  box-shadow:var(--sd-card);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.card-cc:hover{
  color:inherit;
  transform:translateY(-4px);
  border-color:rgba(31,184,217,.40);
  box-shadow:var(--sd-hover);
}
.card-cc::after{
  content:"";position:absolute;top:0;left:-60%;width:60%;height:100%;
  background:linear-gradient(110deg,transparent,rgba(255,255,255,.07),transparent);
  transform:skewX(-12deg);pointer-events:none;
  transition:left .6s var(--ease);
}
.card-cc:hover::after{left:120%;}
.card-cover{
  position:relative;aspect-ratio:16/9;overflow:hidden;background:#0A1A2C;
}
.card-cover img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s var(--ease);
}
.card-cc:hover .card-cover img{transform:scale(1.05);}
.cover-badge{
  position:absolute;left:12px;top:12px;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  background:rgba(7,21,36,.74);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  border:1px solid rgba(255,95,143,.32);
  color:var(--accent);font-size:12px;font-weight:600;
}
.card-body-cc{
  display:flex;flex-direction:column;gap:10px;flex:1;padding:18px;
}
.card-title-cc{
  font-size:17px;font-weight:600;line-height:1.55;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc-cc{
  font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta-cc{
  margin-top:auto;padding-top:8px;
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;
}
.card-meta-cc .dot{
  display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--primary);margin-right:8px;vertical-align:middle;
}
.card-meta-cc i{font-size:11px;color:var(--text-3);transition:transform .25s var(--ease),color .25s var(--ease);}
.card-cc:hover .card-meta-cc i{color:var(--primary);transform:translateX(4px);}

/* ===================== 返回行 ===================== */
.back-row{
  display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:40px;
}

/* ===================== 页脚 ===================== */
.site-footer{
  position:relative;
  margin-top:48px;
  padding-top:64px;
  background:rgba(6,18,31,.78);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary),transparent);
  opacity:.6;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:48px;
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:32px;}
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:30px;height:30px;font-size:14px;}
.footer-brand .brand-name{font-size:17px;font-weight:700;color:var(--text);}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-3);max-width:320px;}
.social-row{display:flex;gap:10px;margin-top:18px;}
.social-row a{
  width:36px;height:36px;border-radius:10px;
  display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);
  color:var(--text-3);font-size:14px;
  transition:color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.social-row a:hover{color:var(--primary);border-color:var(--primary);transform:translateY(-2px);}
.footer-col h4{
  font-size:15px;font-weight:600;color:var(--text);margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{
  font-size:14px;color:var(--text-3);
  transition:color .25s var(--ease),padding-left .25s var(--ease);
}
.footer-links a:hover{color:var(--primary);padding-left:4px;}
.footer-form .sub-form{display:flex;gap:10px;align-items:flex-end;}
.form-label-cc{
  display:block;font-size:13px;color:var(--text-3);margin-bottom:8px;
}
.footer-form input{
  width:100%;height:46px;padding:0 14px;
  background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-btn);
  color:var(--text);font-size:14px;outline:none;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.footer-form input::placeholder{color:var(--text-3);}
.footer-form input:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(31,184,217,.16);
}
.form-note{font-size:13px;color:var(--text-3);margin-top:12px;line-height:1.75;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:22px 0 28px;
  border-top:1px solid var(--line);
}
.footer-bottom p{font-size:13px;color:var(--text-3);}
.footer-bottom .links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom .links a{font-size:13px;color:var(--text-3);transition:color .25s var(--ease);}
.footer-bottom .links a:hover{color:var(--primary);}
.to-top{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--line);
  color:var(--text-2);font-size:13px;cursor:pointer;
  transition:color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.to-top:hover{color:var(--primary);border-color:var(--primary);transform:translateY(-3px);}

/* ===================== 动效降级 ===================== */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html{scroll-behavior:auto;}
}

/* ===================== 断点微调 ===================== */
@media (max-width:991.98px){
  .article-shell{padding:24px 0 64px;}
  .rel-section{margin-top:48px;padding-top:40px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .article-content{font-size:17px;}
  .article-title{font-size:clamp(24px,6.4vw,32px);}
  .article-head{margin-bottom:28px;}
  .empty-state{padding:40px 20px;}
}
@media (max-width:575.98px){
  .breadcrumb-cc{font-size:13px;margin-bottom:20px;}
  .breadcrumb-cc .crumb-cur{max-width:180px;}
  .back-row{gap:16px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --bg:#071524;
  --surface:#0C2036;
  --surface-2:#0A1B2C;
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.09);
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(255,255,255,.18);
  --primary:#1FB8D9;
  --primary-deep:#0E7C9A;
  --accent:#FF5F8F;
  --text:#EAF3F8;
  --text-2:#9FB6C4;
  --text-3:#6C8494;
  --success:#3FD1A0;
  --warn:#FFB25E;
  --r-btn:12px;
  --r-img:12px;
  --r-card:18px;
  --r-panel:20px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04), 0 18px 40px -20px rgba(0,0,0,.70);
  --shadow-hover:0 1px 0 rgba(255,255,255,.06), 0 24px 48px -24px rgba(0,0,0,.80), 0 0 0 1px rgba(31,184,217,.22);
  --ease:.28s cubic-bezier(.4,.2,.2,1);
  --container:1200px;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 620px at 6% -8%, rgba(31,184,217,.16), transparent 62%),
    radial-gradient(760px 560px at 100% 106%, rgba(31,184,217,.10), transparent 64%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
a:hover{color:var(--primary);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;font-weight:600;color:var(--text);}
p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{max-width:var(--container);padding-left:32px;padding-right:32px;position:relative;z-index:1;}
/* ============ 通用组件 ============ */
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--glass);border:1px solid var(--border);
  font-size:13px;color:var(--text-2);line-height:1.6;
}
.pill i{color:var(--primary);font-size:12px;}
.pill-accent{color:var(--accent);border-color:rgba(255,95,143,.35);background:rgba(255,95,143,.08);}
.pill-accent i{color:var(--accent);}
.btn-primary-cc{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;color:#04121C;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
  box-shadow:0 1px 0 rgba(255,255,255,.14) inset;
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
}
.btn-primary-cc:hover{transform:translateY(-2px);box-shadow:0 10px 30px -6px rgba(31,184,217,.55);color:#04121C;}
.btn-primary-cc:active{transform:translateY(0);box-shadow:0 4px 14px -6px rgba(31,184,217,.45);}
.btn-ghost-cc{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  background:var(--glass);border:1px solid var(--border);
  font-size:15px;font-weight:500;color:var(--text);
  transition:border-color var(--ease),color var(--ease),transform var(--ease);
}
.btn-ghost-cc:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-text-cc{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;color:var(--primary);font-weight:500;
}
.btn-text-cc i{transition:transform var(--ease);font-size:13px;}
.btn-text-cc:hover i{transform:translateX(4px);}
.glow-btn{position:relative;overflow:visible;}
.glow-btn::after{
  content:"";position:absolute;inset:-2px;border-radius:14px;
  border:1px solid rgba(31,184,217,.55);
  animation:breathe 2.4s ease-in-out infinite;
  pointer-events:none;
}
@keyframes breathe{0%,100%{opacity:.25;transform:scale(1);}50%{opacity:.75;transform:scale(1.03);}}
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-head h2{font-size:clamp(22px,3.4vw,30px);}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:16px;}
.sec-tag{
  display:inline-block;margin-bottom:16px;
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);
}
/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,21,36,.72);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,21,36,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom-color:rgba(255,255,255,.08);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:68px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(31,184,217,.28),rgba(14,124,154,.35));
  border:1px solid rgba(31,184,217,.42);
  color:var(--primary);font-size:15px;
}
.brand-name{font-size:17px;font-weight:600;letter-spacing:-.01em;white-space:nowrap;}
.nav-links{gap:6px;flex:1 1 auto;}
.nav-link-item{
  position:relative;
  display:inline-flex;align-items:center;
  padding:8px 14px;border-radius:10px;
  font-size:15px;color:var(--text-2);
  white-space:nowrap;
}
.nav-link-item::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-link-item:hover{color:var(--text);background:var(--glass);}
.nav-link-item:hover::after{transform:scaleX(1);}
.nav-link-item.active{color:var(--text);font-weight:600;}
.nav-link-item.active::after{transform:scaleX(1);}
.header-right{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto;}
.search-pill{
  display:flex;align-items:center;gap:8px;
  width:200px;height:38px;padding:0 14px;border-radius:999px;
  background:var(--glass);border:1px solid var(--border);
  transition:width var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.search-pill i{color:var(--text-3);font-size:13px;}
.search-pill input{
  flex:1;min-width:0;background:none;border:none;outline:none;
  font-size:14px;color:var(--text);
}
.search-pill input::placeholder{color:var(--text-3);}
.search-pill:focus-within{
  width:260px;border-color:rgba(31,184,217,.55);
  box-shadow:0 0 0 4px rgba(31,184,217,.14);
}
.btn-ghost-text{
  display:inline-flex;align-items:center;height:38px;padding:0 10px;
  font-size:15px;color:var(--text-2);border-radius:10px;
}
.btn-ghost-text:hover{color:var(--primary);background:var(--glass);}
.btn-glow{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 18px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;color:#04121C;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
}
.btn-glow:hover{color:#04121C;transform:translateY(-1px);box-shadow:0 10px 26px -8px rgba(31,184,217,.6);}
.menu-toggle{
  width:40px;height:40px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--border);color:var(--text);
}
.mobile-nav{background:var(--surface)!important;color:var(--text);border-left:1px solid var(--border);width:300px!important;}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--border);padding:18px 22px;}
.mobile-nav .offcanvas-title{font-size:16px;font-weight:600;}
.mobile-nav .btn-close{filter:invert(1) grayscale(1) brightness(1.6);}
.mobile-nav .offcanvas-body{padding:12px 0;}
.mobile-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 22px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.mobile-link:hover,.mobile-link.active{color:var(--primary);background:rgba(31,184,217,.06);}
.mobile-foot{padding:22px;}
/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;
  padding:72px 0 56px;
  border-bottom:1px solid var(--border);
  overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.14;
  z-index:0;
}
.cat-hero .container{position:relative;z-index:2;}
.cat-hero-inner{max-width:820px;}
.cat-hero h1{
  font-size:clamp(28px,5vw,44px);
  font-weight:700;
  line-height:1.32;
  margin-top:20px;
}
.cat-hero .lead{
  margin-top:20px;font-size:17px;color:var(--text-2);max-width:680px;
}
.crumb{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--text-3);margin-bottom:8px;flex-wrap:wrap;
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb span.sep{opacity:.5;}
.anchor-nav{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;
}
.anchor-nav a{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;
  background:var(--glass);border:1px solid var(--border);
  font-size:14px;color:var(--text-2);
}
.anchor-nav a:hover{border-color:rgba(31,184,217,.5);color:var(--primary);background:rgba(31,184,217,.08);}
.cat-stats{
  display:flex;flex-wrap:wrap;gap:32px;margin-top:40px;
  padding-top:28px;border-top:1px solid var(--border);
}
.cat-stats .item{min-width:120px;}
.cat-stats .num{
  font-size:24px;font-weight:700;color:var(--text);
  font-variant-numeric:tabular-nums;
}
.cat-stats .num i{color:var(--primary);font-size:15px;margin-right:6px;}
.cat-stats .lbl{font-size:13px;color:var(--text-3);margin-top:2px;}
/* ============ 主体布局 ============ */
.cat-main{padding:72px 0 88px;}
.cat-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 260px;
  gap:56px;
  align-items:start;
}
.cat-aside{position:sticky;top:96px;}
.aside-card{
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--border);
  padding:22px;
  backdrop-filter:blur(8px);
}
.aside-card h3{font-size:15px;letter-spacing:.04em;margin-bottom:14px;color:var(--text);}
.aside-list a{
  display:flex;align-items:center;gap:10px;
  padding:10px 0;font-size:14px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.aside-list a:last-child{border-bottom:none;}
.aside-list a::before{
  content:"";width:5px;height:5px;border-radius:50%;
  background:var(--primary);opacity:.6;flex:0 0 auto;
}
.aside-list a:hover{color:var(--primary);}
.aside-note{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--border);
  font-size:13px;color:var(--text-3);line-height:1.8;
}
.prose{max-width:760px;}
.prose h2{
  font-size:clamp(22px,3.4vw,30px);
  line-height:1.4;
  margin-top:56px;padding-left:16px;
  border-left:3px solid var(--primary);
  scroll-margin-top:100px;
}
.prose h2:first-child{margin-top:0;}
.prose h3{font-size:19px;margin-top:32px;color:var(--text);}
.prose p{margin-top:18px;color:var(--text-2);}
.prose p strong{color:var(--text);font-weight:600;}
.prose ul{margin-top:18px;}
.prose ul li{
  position:relative;padding-left:22px;margin-bottom:10px;
  color:var(--text-2);font-size:16px;
}
.prose ul li::before{
  content:"";position:absolute;left:0;top:12px;
  width:6px;height:6px;border-radius:50%;background:var(--primary);
}
.info-panel{
  margin-top:28px;padding:24px;
  border-radius:var(--r-panel);
  background:var(--glass);
  border:1px solid var(--border);
  display:flex;gap:18px;align-items:flex-start;
}
.info-panel .ip-icon{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(31,184,217,.12);border:1px solid rgba(31,184,217,.35);
  color:var(--primary);font-size:16px;
}
.info-panel.warn-panel .ip-icon{background:rgba(255,178,94,.12);border-color:rgba(255,178,94,.38);color:var(--warn);}
.info-panel h4{font-size:16px;margin-bottom:6px;}
.info-panel p{font-size:15px;color:var(--text-2);margin:0;}
.quote-block{
  margin-top:28px;padding:22px 24px;
  border-left:3px solid var(--primary);
  border-radius:0 var(--r-card) var(--r-card) 0;
  background:linear-gradient(90deg,rgba(31,184,217,.10),rgba(31,184,217,0));
  font-size:16px;color:var(--text);
}
.fig-row{margin-top:28px;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--border);}
.fig-row img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.fig-row figcaption{
  padding:12px 18px;font-size:13px;color:var(--text-3);
  background:var(--surface-2);text-align:center;
}
/* ============ 要点卡片组 ============ */
.key-points{padding:0 0 88px;}
.points-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.point-card{
  position:relative;overflow:hidden;
  padding:26px 22px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--border);
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.point-card::after{
  content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.08),transparent);
  transition:left .6s ease;
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(31,184,217,.4);}
.point-card:hover::after{left:120%;}
.point-card .pc-num{
  font-size:13px;color:var(--primary);font-variant-numeric:tabular-nums;
  letter-spacing:.12em;margin-bottom:14px;display:block;
}
.point-card h3{font-size:17px;line-height:1.5;margin-bottom:10px;}
.point-card p{font-size:14px;color:var(--text-2);line-height:1.75;}
/* ============ 流程时间线 ============ */
.flow-sec{padding:0 0 88px;}
.flow-list{
  position:relative;padding-left:34px;
}
.flow-list::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,rgba(31,184,217,.6),rgba(31,184,217,.05));
}
.flow-item{position:relative;padding-bottom:32px;}
.flow-item:last-child{padding-bottom:0;}
.flow-item::before{
  content:"";position:absolute;left:-30px;top:8px;
  width:11px;height:11px;border-radius:50%;
  background:var(--bg);border:2px solid var(--primary);
}
.flow-item .fi-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;}
.flow-item .fi-idx{
  font-size:13px;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:.1em;
}
.flow-item h3{font-size:18px;}
.flow-item p{margin-top:8px;font-size:15px;color:var(--text-2);max-width:720px;}
/* ============ 对比信息块 ============ */
.compare-sec{padding:0 0 88px;}
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.compare-card{
  padding:28px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--border);
  box-shadow:var(--shadow-card);
}
.compare-card.ok{border-top:3px solid var(--success);}
.compare-card.no{border-top:3px solid var(--warn);}
.compare-card h3{
  display:flex;align-items:center;gap:10px;
  font-size:18px;margin-bottom:18px;
}
.compare-card.ok h3 i{color:var(--success);}
.compare-card.no h3 i{color:var(--warn);}
.compare-card li{
  position:relative;padding-left:24px;margin-bottom:12px;
  font-size:15px;color:var(--text-2);
}
.compare-card li:last-child{margin-bottom:0;}
.compare-card li::before{
  content:"";position:absolute;left:4px;top:11px;
  width:8px;height:2px;border-radius:2px;background:var(--text-3);
}
.compare-card.ok li::before{background:var(--success);}
.compare-card.no li::before{background:var(--warn);}
/* ============ FAQ ============ */
.faq-sec{padding:0 0 88px;}
.faq-list{max-width:840px;}
.faq-item{
  border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--border);
  margin-bottom:14px;overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:has(.faq-q[aria-expanded="true"]){
  border-color:rgba(31,184,217,.42);
  box-shadow:0 0 0 1px rgba(31,184,217,.18), 0 18px 40px -22px rgba(0,0,0,.7);
}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q .num{
  flex:0 0 auto;font-size:13px;color:var(--primary);
  font-variant-numeric:tabular-nums;letter-spacing:.08em;
}
.faq-q .txt{flex:1 1 auto;line-height:1.6;padding-left:6px;}
.faq-q .ico{
  flex:0 0 auto;width:24px;height:24px;position:relative;
  border-radius:50%;border:1px solid var(--border-strong);
}
.faq-q .ico::before,.faq-q .ico::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-q .ico::before{left:6px;right:6px;top:50%;height:1.5px;margin-top:-.75px;}
.faq-q .ico::after{top:6px;bottom:6px;left:50%;width:1.5px;margin-left:-.75px;}
.faq-q[aria-expanded="true"] .ico{background:rgba(31,184,217,.14);border-color:rgba(31,184,217,.5);}
.faq-q[aria-expanded="true"] .ico::after{transform:scaleY(0);opacity:0;}
.faq-q[aria-expanded="true"] .num{color:var(--accent);}
.faq-a{padding:0 22px 22px 62px;font-size:15px;color:var(--text-2);animation:fadeIn .3s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}
/* ============ CTA ============ */
.cta-sec{padding:0 0 96px;}
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-panel);
  padding:56px 48px;
  background:linear-gradient(120deg,rgba(12,32,54,.95),rgba(9,24,40,.92));
  border:1px solid var(--border);
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.12;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,95,143,.28),transparent 68%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;gap:40px;align-items:center;justify-content:space-between;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(22px,3.4vw,30px);max-width:560px;}
.cta-inner p{margin-top:14px;color:var(--text-2);font-size:16px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
/* ============ 页脚 ============ */
.site-footer{
  background:var(--surface-2);
  border-top:1px solid var(--border);
  position:relative;
  padding-top:64px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,184,217,.7),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.6fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-name{font-size:17px;font-weight:600;}
.footer-desc{font-size:14px;color:var(--text-2);max-width:320px;}
.social-row{display:flex;gap:10px;margin-top:20px;}
.social-row a{
  width:36px;height:36px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--border);
  color:var(--text-2);font-size:14px;
}
.social-row a:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.footer-col h4{font-size:15px;margin-bottom:18px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--primary);}
.sub-form{display:flex;gap:12px;align-items:flex-end;}
.form-label-cc{display:block;font-size:13px;color:var(--text-3);margin-bottom:6px;}
.sub-form input{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-btn);
  background:var(--glass);border:1px solid var(--border);
  font-size:14px;color:var(--text);outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.sub-form input::placeholder{color:var(--text-3);}
.sub-form input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(31,184,217,.14);}
.form-note{font-size:13px;color:var(--text-3);margin-top:12px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0 28px;
  border-top:1px solid rgba(255,255,255,.06);
  flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-3);}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom .links a{font-size:13px;color:var(--text-3);}
.footer-bottom .links a:hover{color:var(--primary);}
.to-top{
  width:38px;height:38px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--border);color:var(--text-2);
}
.to-top:hover{border-color:var(--primary);color:var(--primary);}
/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .container{padding-left:24px;padding-right:24px;}
  .cat-layout{grid-template-columns:minmax(0,1fr) 240px;gap:40px;}
  .points-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:32px;}
  .footer-col.footer-form{grid-column:1 / -1;}
  .search-pill{width:170px;}
}
@media (max-width:991.98px){
  .cat-main{padding:56px 0 64px;}
  .cat-hero{padding:56px 0 44px;}
  .cat-layout{grid-template-columns:minmax(0,1fr);gap:36px;}
  .cat-aside{position:static;}
  .points-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .compare-grid{grid-template-columns:1fr;}
  .cta-band{padding:44px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  body{font-size:16px;line-height:1.8;}
  .container{padding-left:20px;padding-right:20px;}
  .header-inner{height:56px;gap:14px;}
  .cat-hero h1{font-size:clamp(26px,7vw,34px);}
  .cat-stats{gap:24px;}
  .cat-stats .item{min-width:calc(50% - 12px);}
  .cat-main{padding:48px 0 56px;}
  .key-points,.flow-sec,.compare-sec,.faq-sec{padding-bottom:56px;}
  .cta-sec{padding-bottom:64px;}
  .prose h2{margin-top:40px;}
  .points-grid{grid-template-columns:1fr;}
  .faq-a{padding-left:22px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
  .cat-hero{padding:44px 0 36px;}
  .cat-hero .lead{font-size:15px;}
  .anchor-nav a{font-size:13px;padding:8px 13px;}
  .info-panel{flex-direction:column;gap:12px;padding:20px;}
  .cta-band{padding:32px 22px;border-radius:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-primary-cc,.cta-actions .btn-ghost-cc{width:100%;}
  .sub-form{flex-direction:column;align-items:stretch;}
  .sub-form .d-flex.align-items-end{width:100%;}
  .sub-form .btn-primary-cc{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important;}
  .glow-btn::after{display:none;}
}

/* roulang page: category2 */
:root{
  --bg:#071524;
  --bg-2:#0C2036;
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.09);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --primary:#1FB8D9;
  --primary-deep:#0E7C9A;
  --primary-soft:rgba(31,184,217,.16);
  --accent:#FF5F8F;
  --text:#EAF3F8;
  --text-2:#9FB6C4;
  --text-3:#6C8494;
  --ok:#3FD1A0;
  --warn:#FFB25E;
  --r-btn:12px;
  --r-cover:12px;
  --r-card:18px;
  --r-panel:20px;
  --shadow-card:0 1px 0 rgba(255,255,255,.04) inset,0 18px 40px -20px rgba(0,0,0,.70);
  --shadow-hover:0 1px 0 rgba(255,255,255,.06) inset,0 24px 48px -24px rgba(0,0,0,.80),0 0 0 1px rgba(31,184,217,.22);
  --s4:4px;--s8:8px;--s12:12px;--s16:16px;--s24:24px;--s32:32px;--s48:48px;--s64:64px;--s96:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 520px at 6% -6%,rgba(31,184,217,.16),transparent 62%),
    radial-gradient(760px 480px at 102% 104%,rgba(14,124,154,.18),transparent 60%);
  background-repeat:no-repeat;
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .25s ease,opacity .25s ease;}
a:hover{color:#66D8F0;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4,h5{margin:0 0 var(--s16);font-weight:600;line-height:1.35;letter-spacing:-.01em;color:var(--text);}
h1{font-size:clamp(28px,5vw,44px);font-weight:700;}
h2{font-size:clamp(22px,3.4vw,30px);}
h3{font-size:19px;}
p{margin:0 0 var(--s16);color:var(--text-2);}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;padding-left:32px;padding-right:32px;margin-left:auto;margin-right:auto;}
.tnum{font-variant-numeric:tabular-nums;}
.section{padding:88px 0;}
.section-sm{padding:64px 0;}
.sec-head{max-width:760px;margin-bottom:var(--s48);}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--primary);letter-spacing:.08em;
  text-transform:none;margin-bottom:var(--s12);
}
.sec-head .eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7;}
.sec-head p{margin-bottom:0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .3s ease,backdrop-filter .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(7,21,36,.78);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 12px 30px -22px rgba(0,0,0,.9);
}
.header-inner{
  display:flex;align-items:center;gap:var(--s24);
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04121C;font-size:15px;
  box-shadow:0 6px 18px -8px rgba(31,184,217,.75);
}
.brand-name{
  font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text);
  white-space:nowrap;
}
.nav-links{gap:6px;align-items:center;}
.nav-link-item{
  position:relative;
  display:inline-flex;align-items:center;height:38px;padding:0 12px;
  font-size:15px;color:var(--text-2);border-radius:10px;
  transition:color .25s ease,background .25s ease;
}
.nav-link-item:hover{color:var(--text);background:rgba(255,255,255,.045);}
.nav-link-item.active{color:var(--text);font-weight:600;}
.nav-link-item.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;
  background:var(--primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:var(--s12);margin-left:auto;}
.search-pill{
  display:flex;align-items:center;gap:8px;
  width:200px;height:40px;padding:0 14px;
  background:var(--glass);border:1px solid var(--line);border-radius:999px;
  transition:width .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.search-pill:focus-within{
  width:260px;border-color:rgba(31,184,217,.55);
  box-shadow:0 0 0 4px rgba(31,184,217,.14);
}
.search-pill i{color:var(--text-3);font-size:13px;}
.search-pill input{
  flex:1;min-width:0;background:transparent;border:0;outline:none;
  color:var(--text);font-size:14px;font-family:inherit;
}
.search-pill input::placeholder{color:var(--text-3);}
.btn-primary-cc{
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border:0;border-radius:var(--r-btn);
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04121C;font-size:15px;font-weight:700;font-family:inherit;
  cursor:pointer;transition:transform .25s ease,box-shadow .25s ease,filter .25s ease;
  box-shadow:0 12px 30px -16px rgba(31,184,217,.7);
}
.btn-primary-cc:hover{transform:translateY(-2px);box-shadow:0 10px 30px -6px rgba(31,184,217,.55);color:#04121C;}
.btn-primary-cc:active{transform:translateY(0);box-shadow:0 6px 16px -8px rgba(31,184,217,.45);}
.btn-glow{position:relative;}
.btn-glow::after{
  content:"";position:absolute;inset:-2px;border-radius:inherit;
  border:1px solid rgba(31,184,217,.55);
  animation:breathe 2.4s ease-in-out infinite;pointer-events:none;
}
@keyframes breathe{
  0%,100%{opacity:.25;transform:scale(1);}
  50%{opacity:.85;transform:scale(1.06);}
}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--r-btn);
  background:var(--glass);border:1px solid var(--line);color:var(--text);
  font-size:14px;font-weight:500;transition:border-color .25s ease,color .25s ease,background .25s ease;
}
.btn-ghost:hover{border-color:rgba(31,184,217,.6);color:var(--primary);background:rgba(31,184,217,.08);}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);border-radius:12px;
  color:var(--text);cursor:pointer;transition:border-color .25s ease,color .25s ease;
}
.icon-btn:hover{border-color:rgba(31,184,217,.6);color:var(--primary);}
.offcanvas-cc{
  background:var(--bg-2);color:var(--text);border-right:1px solid var(--line);width:300px;
}
.offcanvas-cc .nav-link-item{height:52px;font-size:16px;width:100%;padding:0 8px;border-radius:12px;}
.offcanvas-cc .nav-link-item.active::after{display:none;}
.offcanvas-cc .nav-link-item.active{background:rgba(31,184,217,.12);color:var(--primary);}
.btn-close-cc{background:none;border:0;color:var(--text-2);font-size:20px;cursor:pointer;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding:72px 0 56px;
  overflow:hidden;
  background-image:linear-gradient(180deg,rgba(7,21,36,.72),rgba(7,21,36,.96)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line-soft);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(620px 340px at 24% 12%,#000 10%,transparent 78%);
  -webkit-mask-image:radial-gradient(620px 340px at 24% 12%,#000 10%,transparent 78%);
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:var(--s24);}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb span.sep{opacity:.5;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);
  font-size:13px;color:var(--accent);margin-bottom:var(--s24);
}
.hero-tag i{font-size:11px;}
.page-hero h1{max-width:860px;margin-bottom:var(--s16);}
.page-hero h1 em{font-style:normal;color:var(--primary);}
.hero-lead{max-width:700px;font-size:17px;color:var(--text-2);margin-bottom:var(--s32);}
.hero-stats{display:flex;flex-wrap:wrap;gap:var(--s32);}
.hero-stat{min-width:130px;padding-left:var(--s16);border-left:1px solid var(--line);}
.hero-stat strong{display:block;font-size:24px;font-weight:700;color:var(--text);}
.hero-stat small{display:block;font-size:13px;color:var(--text-3);}

/* ---------- anchor nav ---------- */
.anchor-bar{
  position:sticky;top:68px;z-index:1020;
  background:rgba(7,21,36,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.anchor-inner{display:flex;gap:var(--s8);overflow-x:auto;padding:12px 0;scrollbar-width:none;}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-link{
  flex:0 0 auto;
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;background:var(--glass);border:1px solid var(--line);
  font-size:14px;color:var(--text-2);white-space:nowrap;
  transition:border-color .25s ease,color .25s ease,background .25s ease;
}
.anchor-link:hover{border-color:rgba(31,184,217,.6);color:var(--primary);background:rgba(31,184,217,.08);}

/* ---------- board rows ---------- */
.board{padding:88px 0 40px;}
.board-row{
  display:grid;grid-template-columns:1fr 1fr;gap:var(--s64);
  align-items:center;margin-bottom:var(--s96);
}
.board-row:last-child{margin-bottom:0;}
.board-row.reverse .board-media{order:2;}
.board-row.reverse .board-copy{order:1;}
.board-media{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.board-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-panel);}
.board-media .float-card{
  position:absolute;left:18px;bottom:18px;right:18px;
  display:flex;align-items:center;gap:12px;
  padding:12px 16px;border-radius:14px;
  background:rgba(7,21,36,.78);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid var(--line);
}
.board-media .float-card i{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(31,184,217,.16);color:var(--primary);font-size:14px;
}
.board-media .float-card b{display:block;font-size:14px;font-weight:600;color:var(--text);}
.board-media .float-card span{display:block;font-size:12px;color:var(--text-3);}
.board-copy .step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;margin-bottom:var(--s16);
  background:rgba(31,184,217,.14);border:1px solid rgba(31,184,217,.35);
  color:var(--primary);font-size:14px;font-weight:700;
}
.board-copy h2{margin-bottom:var(--s16);}
.board-copy p{margin-bottom:var(--s24);}
.tick-list li{
  position:relative;padding-left:26px;margin-bottom:12px;
  color:var(--text-2);font-size:16px;
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px rgba(31,184,217,.14);
}
.tick-list li:last-child{margin-bottom:0;}

/* ---------- compare cards ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s24);}
.compare-card{
  position:relative;overflow:hidden;
  padding:var(--s32);border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(31,184,217,.4);}
.compare-card .cc-icon{
  width:44px;height:44px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(31,184,217,.14);color:var(--primary);font-size:17px;
  margin-bottom:var(--s16);
}
.compare-card h3{font-size:18px;margin-bottom:var(--s12);}
.compare-card p{font-size:15px;margin-bottom:0;}
.compare-card .cc-foot{
  margin-top:var(--s24);padding-top:var(--s16);border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-3);display:flex;justify-content:space-between;gap:12px;
}
.compare-card.accent{border-color:rgba(255,95,143,.32);}
.compare-card.accent .cc-icon{background:rgba(255,95,143,.14);color:var(--accent);}

/* ---------- split panel ---------- */
.panel{
  border-radius:var(--r-panel);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  padding:var(--s48);
}
.panel-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:var(--s48);align-items:start;}
.panel h2{margin-bottom:var(--s16);}
.check-block{
  display:flex;gap:14px;padding:16px 0;
  border-bottom:1px solid var(--line-soft);
}
.check-block:last-child{border-bottom:0;padding-bottom:0;}
.check-block i{
  width:30px;height:30px;flex:0 0 30px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(31,184,217,.14);color:var(--primary);font-size:12px;margin-top:4px;
}
.check-block b{display:block;font-size:16px;font-weight:600;color:var(--text);margin-bottom:4px;}
.check-block span{font-size:14.5px;color:var(--text-2);}
.mini-list li{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 0;border-bottom:1px dashed var(--line-soft);
  font-size:15px;color:var(--text-2);
}
.mini-list li:last-child{border-bottom:0;}
.mini-list li em{font-style:normal;color:var(--text);font-weight:600;}

/* ---------- stats band ---------- */
.band{
  position:relative;overflow:hidden;border-radius:var(--r-panel);
  border:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(7,21,36,.88),rgba(12,32,54,.94)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  padding:var(--s48);
}
.band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--s32);}
.band-item strong{display:block;font-size:30px;font-weight:700;color:var(--primary);margin-bottom:6px;}
.band-item span{font-size:14px;color:var(--text-2);}
.band-note{margin-top:var(--s32);padding-top:var(--s24);border-top:1px solid var(--line-soft);font-size:13px;color:var(--text-3);}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.accordion-cc .accordion-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:var(--s16);overflow:hidden;
}
.accordion-cc .accordion-button{
  display:flex;align-items:flex-start;gap:var(--s16);
  width:100%;padding:22px 24px;background:transparent;border:0;
  color:var(--text);font-size:17px;font-weight:600;font-family:inherit;
  text-align:left;cursor:pointer;box-shadow:none;
  transition:background .25s ease,color .25s ease;
}
.accordion-cc .accordion-button::after{display:none;}
.accordion-cc .accordion-button:not(.collapsed){color:var(--primary);background:rgba(31,184,217,.06);}
.accordion-cc .q-no{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(31,184,217,.45);color:var(--primary);
  font-size:13px;font-weight:700;
}
.accordion-cc .q-text{flex:1;padding-top:4px;}
.accordion-cc .q-sign{
  flex:0 0 22px;width:22px;height:22px;margin-top:6px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-3);font-size:17px;line-height:1;transition:color .25s ease;
}
.accordion-cc .accordion-button:not(.collapsed) .q-sign{color:var(--primary);}
.accordion-cc .accordion-body{
  position:relative;padding:0 24px 24px 74px;
  font-size:15.5px;color:var(--text-2);
  animation:fadeIn .35s ease both;
}
.accordion-cc .accordion-body::before{
  content:"";position:absolute;left:24px;top:0;bottom:24px;width:3px;
  background:var(--primary);border-radius:3px;opacity:.85;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:none;}}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-panel);
  border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(31,184,217,.14),rgba(12,32,54,.92) 55%);
  padding:var(--s64) var(--s48);
  text-align:center;
}
.cta-band::after{
  content:"";position:absolute;width:420px;height:420px;right:-120px;top:-160px;
  background:radial-gradient(circle,rgba(255,95,143,.22),transparent 62%);
  pointer-events:none;
}
.cta-band h2{max-width:640px;margin:0 auto var(--s16);}
.cta-band p{max-width:620px;margin:0 auto var(--s32);}
.cta-actions{display:flex;flex-wrap:wrap;gap:var(--s16);justify-content:center;position:relative;z-index:2;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:15px;font-weight:600;
}
.btn-text i{transition:transform .25s ease;}
.btn-text:hover i{transform:translateX(4px);}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  margin-top:88px;
  background:rgba(7,21,36,.9);
  border-top:1px solid var(--line-soft);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,184,217,.65),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:var(--s48);
  padding:64px 0 48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:var(--s16);}
.footer-desc{font-size:14.5px;color:var(--text-2);margin-bottom:var(--s24);}
.social-row{display:flex;gap:10px;}
.social-row a{
  width:38px;height:38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);
  color:var(--text-2);font-size:14px;
  transition:border-color .25s ease,color .25s ease,transform .25s ease;
}
.social-row a:hover{border-color:rgba(31,184,217,.6);color:var(--primary);transform:translateY(-2px);}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:var(--s16);color:var(--text);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14.5px;color:var(--text-2);}
.footer-links a:hover{color:var(--primary);}
.sub-form{display:flex;gap:var(--s12);align-items:flex-end;}
.form-label-cc{display:block;font-size:13px;color:var(--text-3);margin-bottom:6px;}
.sub-form input{
  width:100%;height:46px;padding:0 14px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--text);font-size:14.5px;font-family:inherit;outline:none;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.sub-form input::placeholder{color:var(--text-3);}
.sub-form input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(31,184,217,.14);}
.form-note{font-size:13px;color:var(--text-3);margin:var(--s12) 0 0;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;gap:var(--s16);
  padding:24px 0;border-top:1px solid var(--line-soft);
}
.footer-bottom p{margin:0;font-size:13.5px;color:var(--text-3);}
.footer-bottom .links{display:flex;gap:var(--s24);margin-left:auto;}
.footer-bottom .links a{font-size:13.5px;color:var(--text-3);}
.footer-bottom .links a:hover{color:var(--primary);}
.to-top{
  width:40px;height:40px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);
  cursor:pointer;transition:border-color .25s ease,color .25s ease,transform .25s ease;
}
.to-top:hover{border-color:rgba(31,184,217,.6);color:var(--primary);transform:translateY(-2px);}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .container{padding-left:24px;padding-right:24px;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:var(--s32);}
  .footer-form{grid-column:1 / -1;}
  .board-row{gap:var(--s48);margin-bottom:80px;}
  .compare-grid{grid-template-columns:repeat(2,1fr);}
  .band-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .board{padding:64px 0 24px;}
  .board-row{grid-template-columns:1fr;gap:var(--s32);margin-bottom:64px;}
  .board-row.reverse .board-media{order:1;}
  .board-row.reverse .board-copy{order:2;}
  .panel-grid{grid-template-columns:1fr;gap:var(--s32);}
  .panel{padding:var(--s32);}
  .anchor-bar{top:56px;}
  .header-inner{height:56px;}
  .cta-band{padding:var(--s48) var(--s24);}
  .hero-stats{gap:var(--s24);}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .page-hero{padding:48px 0 40px;}
  .compare-grid{grid-template-columns:1fr;}
  .band{padding:var(--s32);}
  .band-grid{grid-template-columns:1fr 1fr;gap:var(--s24);}
  .footer-grid{grid-template-columns:1fr;gap:var(--s32);padding:48px 0 32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-bottom .links{margin-left:0;flex-wrap:wrap;gap:var(--s16);}
  .accordion-cc .accordion-body{padding:0 20px 20px 20px;}
  .accordion-cc .accordion-body::before{left:20px;top:0;bottom:16px;}
  .accordion-cc .accordion-button{padding:18px 20px;font-size:16px;}
}
@media (max-width:575.98px){
  h1{font-size:26px;}
  .page-hero h1{font-size:26px;}
  .hero-stats{flex-direction:column;gap:var(--s16);}
  .hero-stat{width:100%;}
  .band-grid{grid-template-columns:1fr;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn-primary-cc,.cta-actions .btn-ghost{width:100%;}
  .board-media .float-card{left:12px;right:12px;bottom:12px;padding:10px 12px;}
  .board-media .float-card b{font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}