/* roulang page: index */
:root{
  --bg:#F2F6FC;
  --surface:#FFFFFF;
  --brand:#1B5BF6;
  --brand-deep:#0D3B9F;
  --dark:#091C3E;
  --dark-2:#102A57;
  --cyan:#49C8E8;
  --violet:#7A63F0;
  --orange:#FFAD4D;
  --text-1:#0B1B33;
  --text-2:#48658B;
  --text-3:#7E93B0;
  --white:#FFFFFF;
  --divider:#E3EBF7;
  --border:#D9E4F2;
  --radius:16px;
  --radius-sm:10px;
  --radius-pill:60px;
  --shadow-1:0 2px 10px rgba(10,30,80,0.06);
  --shadow-2:0 16px 36px rgba(10,30,80,0.12);
  --container:1200px;
  --gap:24px;
  --font-main:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-main);background:var(--bg);color:var(--text-1);font-size:16px;line-height:1.9}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
ul,ol{list-style:none}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.skip-link{position:absolute;left:-9999px;top:-9999px;z-index:2000}
.skip-link:focus{left:16px;top:16px;background:var(--brand);color:#fff;padding:10px 18px;border-radius:8px;left:16px;top:16px}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;cursor:pointer;font-weight:600;border-radius:var(--radius-sm);padding:0 22px;height:46px;transition:box-shadow .25s ease,transform .25s ease,background .25s ease,color .25s ease;white-space:nowrap;line-height:1.2;font-size:15px}
.btn-large{height:52px;padding:0 30px;font-size:16px;border-radius:var(--radius-pill)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);box-shadow:0 10px 22px rgba(27,91,246,.28);transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--brand-deep)}
.btn-white:hover{background:#e8f0ff;box-shadow:0 10px 24px rgba(7,20,48,.22);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.55);backdrop-filter:blur(4px)}
.btn-ghost:hover{background:rgba(255,255,255,.24);border-color:#fff;transform:translateY(-2px)}
.btn-ghost-dark{background:transparent;color:var(--brand);border:1px solid var(--brand)}
.btn-ghost-dark:hover{background:var(--brand);color:#fff}
.btn-line-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.8);border-radius:var(--radius-pill);height:50px;padding:0 28px}
.btn-line-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:600;font-size:14px;transition:gap .2s}
.text-link:hover{gap:12px}

/* ===== Tags & badges ===== */
.tag{display:inline-flex;align-items:center;border-radius:999px;background:rgba(27,91,246,.1);color:var(--brand);padding:3px 10px;font-size:12px;font-weight:600}
.tag-cyan{background:rgba(73,200,232,.12);color:#0A8CB0}
.tag-orange{background:rgba(255,173,77,.16);color:#B15C00}
.tag-dark{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.22)}
.hero-shot-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.26);border-radius:999px;color:#fff;padding:7px 13px;font-size:12px;line-height:1.2}
.hero-shot-badge svg{width:14px;height:14px;fill:var(--cyan)}

/* ===== Header navigation ===== */
.site-header{position:sticky;top:0;z-index:200;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--divider);box-shadow:0 4px 20px rgba(10,30,80,.02);transition:box-shadow .3s}
.site-header.scrolled{box-shadow:var(--shadow-1)}
.header-inner{height:72px;display:flex;align-items:center;gap:16px}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{width:44px;height:44px;border-radius:14px;background:linear-gradient(140deg,var(--brand),#3464e0);display:flex;align-items:center;justify-content:center;box-shadow:0 6px 14px rgba(27,91,246,.3);color:#fff}
.logo-mark svg{width:24px;height:24px;fill:#fff}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-primary{font-size:20px;font-weight:800;color:var(--text-1);letter-spacing:.02em}
.logo-sub{font-size:12px;color:var(--brand);font-weight:600;letter-spacing:.24em;margin-top:3px}
.main-nav{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}
.nav-link{position:relative;padding:9px 16px;font-size:15px;font-weight:500;color:var(--text-2);border-radius:10px;transition:background .2s,color .2s}
.nav-link:hover{color:var(--brand);background:rgba(27,91,246,.07)}
.nav-link.active{color:var(--brand);background:rgba(27,91,246,.1);font-weight:600}
.header-tools{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-search{height:42px;width:210px;background:var(--bg);border:1px solid var(--border);border-radius:999px;display:flex;align-items:center;padding:0 15px;transition:width .3s,box-shadow .25s,border-color .25s}
.nav-search:focus-within{box-shadow:0 0 0 3px rgba(27,91,246,.18);border-color:var(--brand);background:#fff}
.nav-search svg{width:16px;height:16px;fill:var(--text-3);flex-shrink:0;margin-right:8px}
.nav-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--text-1)}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input::-ms-clear{display:none}
.header-cta{height:42px;padding:0 18px;border-radius:999px}
.burger{display:none;width:42px;height:42px;border-radius:10px;background:var(--bg);border:1px solid var(--border);align-items:center;justify-content:center;position:relative;cursor:pointer;transition:background .2s}
.burger:hover{background:#e9effa}
.burger span,.burger span::before,.burger span::after{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative;transition:transform .3s,opacity .3s}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;top:-6px}
.burger span::after{top:6px}
.burger.open span{background:transparent}
.burger.open span::before{transform:rotate(45deg);top:0}
.burger.open span::after{transform:rotate(-45deg);top:0}
.mobile-nav{display:none;position:fixed;top:72px;right:0;bottom:0;left:0;z-index:150;background:linear-gradient(145deg,#102A57 0%,#081532 100%);color:#fff;padding:32px 24px;overflow-y:auto}
.mobile-nav.show{display:block}
.mobile-nav a{display:block;font-size:18px;font-weight:600;color:rgba(255,255,255,.9);padding:15px 8px;border-bottom:1px solid rgba(255,255,255,.1)}
.mobile-nav a:hover,.mobile-nav a.active-mobile{color:#fff;background:rgba(255,255,255,.06)}
.mobile-nav-cta{margin-top:28px}
.mobile-nav-search{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);margin-top:20px}
.mobile-nav-search:focus-within{box-shadow:none}
.mobile-nav-search input{background:transparent;color:#fff;border:0;outline:none}
.mobile-nav-search input::placeholder{color:rgba(255,255,255,.7)}

/* ===== Hero ===== */
.hero{position:relative;display:flex;align-items:center;min-height:600px;color:#fff;background:#07182e;overflow:hidden;padding:130px 0 120px}
.hero-bg{position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,22,50,.96) 0%,rgba(8,22,50,.72) 46%,rgba(8,22,50,.18) 100%),url('/assets/images/backpic/back-1.webp') center center / cover no-repeat}
.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,16,36,0) 62%,rgba(5,16,36,.65) 100%);pointer-events:none}
.hero-inner{position:relative;z-index:2}
.hero-content{max-width:720px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(73,200,232,.14);border:1px solid rgba(73,200,232,.35);padding:6px 16px;border-radius:999px;color:#b9ecff;font-size:13px;font-weight:600;margin-bottom:24px}
.hero-eyebrow svg{width:14px;height:14px}
.hero h1{font-size:clamp(32px,4.4vw,54px);line-height:1.24;font-weight:800;letter-spacing:.01em;text-shadow:0 6px 30px rgba(0,0,0,.3)}
.hero-lead{margin-top:22px;font-size:17px;line-height:1.9;color:rgba(255,255,255,.88);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:34px}
.hero-hero-badges{display:flex;align-items:center;gap:10px;margin-top:46px}
.hero-hero-badges .hero-shot-badge{margin-right:2px}

/* ===== Sections base ===== */
.section{padding:88px 0}
.section-alt{background:var(--surface)}
.section-tint{background:#EAF1FF}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.section-title-outer{display:flex;flex-direction:column;gap:8px}
.section-bar{width:34px;height:4px;border-radius:4px;background:var(--brand)}
.section-head h2,.section-title{font-size:28px;line-height:1.35;font-weight:800;color:var(--text-1);display:flex;align-items:center;gap:12px}
.section-head h2::before,.section-title::before{content:"";width:6px;height:24px;background:var(--brand);border-radius:999px;flex-shrink:0}
.section-desc{color:var(--text-3);font-size:15px}
.sec-arrow-group{display:flex;align-items:center;gap:10px}
.round-arrow{width:40px;height:40px;border-radius:50%;background:var(--surface);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-2);transition:background .2s,color .2s,box-shadow .2s;font-size:20px;line-height:1}
.round-arrow:hover{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 6px 16px rgba(27,91,246,.2)}
.round-arrow:disabled{opacity:.4;cursor:not-allowed;background:var(--bg)}
.round-arrow svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}

/* ===== Horizontal strip ===== */
.strip-scroll{display:flex;gap:var(--gap);overflow-x:auto;scroll-snap-type:x proximity;padding-bottom:12px;scrollbar-width:thin;scrollbar-color:var(--border) transparent}
.strip-scroll::-webkit-scrollbar{height:7px}
.strip-scroll::-webkit-scrollbar-track{background:#f0f4fc;border-radius:4px}
.strip-scroll::-webkit-scrollbar-thumb{background:#c3d1e6;border-radius:4px}
.strip-card{flex:0 0 280px;scroll-snap-align:start;background:var(--surface);border:1px solid transparent;border-radius:18px;overflow:hidden;box-shadow:var(--shadow-1);transition:transform .3s ease,box-shadow .3s ease;position:relative}
.strip-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-2)}
.strip-card-pic{height:158px;overflow:hidden;position:relative}
.strip-card-pic img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.strip-card:hover .strip-card-pic img{transform:scale(1.05)}
.strip-card-coverline{position:absolute;left:0;right:0;bottom:0;height:36px;background:linear-gradient(180deg,transparent,rgba(7,18,46,.55))}
.strip-card-hover{position:absolute;inset:auto 0 0 0;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,transparent,rgba(8,21,48,.8));height:0;overflow:hidden;opacity:0;transition:height .3s ease,opacity .3s ease}
.strip-card:hover .strip-card-hover{height:60px;opacity:1}
.strip-card-hover span{color:#fff;border:1px solid rgba(255,255,255,.55);padding:5px 14px;border-radius:999px;font-size:12px;background:rgba(255,255,255,.1)}
.strip-card-body{padding:16px 16px 18px}
.strip-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}
.strip-meta .tag{flex-shrink:0}
.strip-card-body h3{font-size:17px;font-weight:700;line-height:1.5;color:var(--text-1)}
.strip-card-body p{color:var(--text-3);font-size:13px;line-height:1.65;margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.strip-link{display:inline-flex;align-items:center;gap:4px;font-size:14px;color:var(--brand);font-weight:600;margin-top:10px}
.strip-link:hover{gap:8px;color:var(--brand-deep)}
.strip-link svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ===== Hot cards ===== */
.hot-list{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.hot-card{display:grid;grid-template-columns:172px 1fr;gap:20px;background:var(--surface);grid-column:span 6;border-radius:18px;box-shadow:var(--shadow-1);overflow:hidden;padding:12px;position:relative;transition:box-shadow .3s ease,transform .3s ease}
.hot-card:nth-child(3){grid-column:7 / span 6}
.hot-card:nth-child(4){grid-column:1 / span 6}
.hot-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px)}
.hot-pic{position:relative;border-radius:13px;overflow:hidden;min-height:125px}
.hot-pic img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.hot-card:hover .hot-pic img{transform:scale(1.04)}
.hot-mark{position:absolute;top:10px;left:10px;font-size:20px;font-weight:900;color:#fff;line-height:1;padding:5px 8px 4px;border-radius:9px;background:rgba(7,16,36,.68);text-shadow:0 2px 8px rgba(0,0,0,.45);z-index:2;letter-spacing:.05em}
.hot-mark em{font-style:normal;color:var(--orange)}
.hot-info{display:flex;flex-direction:column;justify-content:center;padding-right:4px}
.hot-top{display:grid;grid-template-columns:1fr auto;margin-bottom:8px;align-items:center}
.hot-type{color:var(--text-3);font-size:12px;margin-top:5px;text-align:right}
.hot-info h3{font-size:19px;font-weight:800;color:var(--text-1);line-height:1.45}
.hot-info p{font-size:14px;color:var(--text-2);line-height:1.75;margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hot-note{font-size:13px;color:var(--brand);font-weight:600;margin-top:10px;display:flex;align-items:center;gap:7px}
.hot-note svg{width:14px;height:14px}
.hot-arrow{display:flex;align-items:center;gap:12px;margin-top:12px;color:var(--text-3);font-size:13px;transition:color .25s}
.hot-card:hover .hot-arrow{color:var(--brand)}
.hot-arrow .ringbtn{width:26px;height:26px;border-radius:50%;background:var(--bg);display:inline-flex;align-items:center;justify-content:center;transition:background .2s;font-size:13px}
.hot-arrow svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2.4}
.hot-card:nth-child(3){background:linear-gradient(120deg,#fffdf7 0%,#fff 58%,#fff7ec 100%)}
.hot-card:nth-child(3) .hot-arrow{color:var(--orange)}

/* ===== catalog mosaic ===== */
.catalog-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;grid-auto-flow:dense}
.catalog-item{position:relative;border-radius:18px;overflow:hidden;min-height:228px;display:flex;align-items:flex-end;text-align:left;box-shadow:var(--shadow-1);margin:0;padding:0;text-decoration:none;background:var(--surface);color:var(--text-1);transition:box-shadow .3s,transform .3s}
.catalog-item:hover{box-shadow:var(--shadow-2);transform:translateY(-4px)}
.catalog-item--feature{grid-column:span 8;grid-row:span 2;min-height:480px}
.catalog-item--half{grid-column:span 4}
.catalog-item--quarter{grid-column:span 3}
.catalog-item-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:1}
.catalog-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,20,48,.02) 20%,rgba(8,20,48,.78) 82%);z-index:2;transition:background .25s}
.catalog-item:hover .catalog-overlay{background:linear-gradient(180deg,rgba(8,20,48,.15) 10%,rgba(8,20,48,.85) 86%)}
.catalog-content{position:relative;z-index:3;padding:28px;width:100%;color:#fff}
.catalog-tag{position:relative;z-index:3;align-self:flex-start;margin:24px 0 0 24px;display:inline-flex}
.catalog-content h3{font-size:24px;font-weight:800;line-height:1.5;margin-bottom:6px}
.catalog-item--half .catalog-content h3{font-size:21px}
.catalog-item--quarter .catalog-content h3{font-size:19px}
.catalog-content p{font-size:14px;color:rgba(255,255,255,.84);line-height:1.75;margin:6px 0 14px;max-width:90%}
.catalog-item--quarter .catalog-content p{display:none}
.catalog-enter{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid rgba(255,255,255,.45);background:rgba(255,255,255,.12);padding:4px 13px;border-radius:999px;font-size:13px;color:#fff;transition:background .25s;line-height:1.6}
.catalog-item:hover .catalog-enter{background:rgba(255,255,255,.28)}
.catalog-enter svg{width:13px;height:13px;stroke:currentColor}

/* ===== Security panel ===== */
.secure-panel{background:linear-gradient(135deg,#EEF4FF,e 0%,#F7FAFF 60%,#EAF4FF 100%);border:1px solid #DCE9FF;border-radius:24px;padding:48px;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;position:relative;overflow:hidden}
.secure-panel::after{content:"";position:absolute;right:-90px;top:-90px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(73,200,232,.16),transparent 70%);pointer-events:none}
.secure-title{font-size:29px;font-weight:800;line-height:1.5;color:var(--text-1)}
.secure-desc{margin-top:12px;color:var(--text-2)}
.secure-list{margin-top:20px;display:grid;gap:12px}
.secure-line{display:flex;gap:12px;align-items:flex-start;color:var(--text-2);padding:10px 0;border-bottom:1px dashed rgba(100,130,190,.25)}
.secure-line:last-child{border-bottom:0}
.secure-ico{width:30px;height:30px;flex:0 0 30px;border-radius:9px;background:var(--brand);display:flex;align-items:center;justify-content:center;margin-top:5px;color:#fff}
.secure-ico svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.secure-line b{font-weight:700;color:var(--text-1)}
.secure-line span{font-size:14px;line-height:1.7}
.secure-card-right{display:grid;gap:16px}
.secure-mini-card{background:rgba(255,255,255,.88);border:1px solid rgba(255,255,255,.8);border-radius:18px;box-shadow:var(--shadow-1);padding:20px 22px;display:flex;gap:15px;align-items:flex-start;backdrop-filter:blur(6px)}
.secure-mini-card+.secure-mini-card{background:rgba(255,255,255,.97)}
.secure-mini-icon{width:40px;height:40px;border-radius:12px;background:rgba(27,91,246,.1);color:var(--brand);display:flex;align-items:center;justify-content:center;padding:8px;flex-shrink:0}
.secure-mini-icon svg{width:21px;height:21px}
.secure-mini-icon.cyan{background:rgba(73,200,232,.16);color:#0E91B6}
.secure-mini-icon.violet{background:rgba(122,99,240,.12);color:#5C47D6}
.secure-mini-card b{font-weight:800;font-size:15px;color:var(--text-1)}
.secure-mini-card p{font-size:13px;line-height:1.7;color:var(--text-3);margin-top:3px}

/* ===== News / CMS ===== */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.news-card{background:var(--surface);border:1px solid var(--divider);border-radius:18px;padding:22px 24px;box-shadow:var(--shadow-1);transition:transform .25s,box-shadow .25s,border-color .25s;position:relative}
.news-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);border-color:var(--border)}
.news-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;gap:10px}
.news-date{font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:5px}
.news-date svg{width:13px;height:13px;fill:none;stroke:currentColor;stroke-width:2}
.news-card h3{font-size:18px;font-weight:700;color:var(--text-1);line-height:1.6}
.news-card h3 a:hover{color:var(--brand)}
.news-card p{font-size:14px;color:var(--text-2);margin-top:8px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:13px;font-size:13px;color:var(--text-3)}
.news-more{display:inline-flex;align-items:center;gap:4px;font-weight:600;color:var(--brand)}
.news-more svg{stroke:currentColor;width:14px;height:14px}
.news-empty{grid-column:1 / -1;background:var(--surface);border:1px dashed var(--border);border-radius:18px;color:var(--text-3);min-height:140px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:10px}
.news-empty span{font-size:34px;line-height:1}
.news-empty p{font-size:15px}

/* ===== CTA nightly ===== */
.cta-night{position:relative;overflow:hidden;background:linear-gradient(100deg,#102B66 0%,#0B1F4A 50%,#081532 100%)}
.cta-night-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.3}
.cta-night::before{content:"";position:absolute;inset:0;background:radial-gradient(500px 300px at 15% 20%,rgba(73,200,232,.14),transparent 70%),radial-gradient(340px 220px at 85% 65%,rgba(122,99,240,.15),transparent 70%);pointer-events:none}
.cta-inner{position:relative;z-index:2;text-align:center;padding:84px 22px;color:#fff}
.cta-inner .safe-text{display:inline-flex;align-items:center;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);padding:6px 14px;border-radius:999px;color:rgba(255,255,255,.85);font-size:13px;margin-bottom:20px;gap:8px}
.cta-inner h2{font-size:clamp(25px,3.4vw,42px);line-height:1.4;font-weight:800;margin-bottom:16px;text-shadow:0 6px 18px rgba(0,0,0,.26)}
.cta-inner .lead{max-width:640px;margin:0 auto 30px;color:rgba(255,255,255,.78);font-size:gray}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:16px}
.cta-note{color:rgba(255,255,255,.6);font-size:12px;margin-top:24px}
.cta-note a{color:#fff;text-decoration:underline;text-underline-offset:3px}

/* ===== FAQ ===== */
.faq-wrap{max-width:900px;margin:0 auto;display:grid;gap:14px}
.faq-item{background:#fff;border:1px solid var(--divider);border-radius:16px;overflow:hidden;transition:border-color .25s,box-shadow .25s}
.faq-item.open{border-color:var(--border);box-shadow:var(--shadow-1)}
.faq-q{width:100%;display:flex;gap:18px;align-items:center;background:transparent;border:0;padding:18px 22px;cursor:pointer;text-align:left;font-size:16px;font-weight:700;color:var(--text-1);line-height:1.6}
.faq-q .faq-icon{flex-shrink:0;width:28px;height:28px;border-radius:9px;background:rgba(27,91,246,.1);color:var(--brand);display:flex;align-items:center;justify-content:center;margin-left:auto;transition:transform .35s,background .25s,color .25s}
.faq-q .faq-icon svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2.5;stroke-linecap:round}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-q:hover .faq-icon{background:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;padding:0 22px 0 22px}
.faq-item.open .faq-a{max-height:280px;padding:0 22px 22px 22px}
.faq-a p{padding:14px 16px 12px;background:#F5F9FF;border-left:3px solid var(--brand);border-radius:10px;color:var(--text-2);font-size:15px;line-height:1.9;margin:0 0 0 38px}
.faq-a p::before{content:""}

/* ===== Footer ===== */
.site-footer{background:#08152F;color:rgba(255,255,255,.8);position:relative;overflow:hidden}
.site-footer::before{content:"";position:absolute;inset:0;background-image:radial-gradient(1px 1px at 10% 20%,rgba(255,255,255,.4) 0,transparent 100%),radial-gradient(1px 1px at 30% 70%,rgba(73,200,232,.5) 0,transparent 100%),radial-gradient(1.2px 1.2px at 70% 15%,rgba(255,255,255,.3) 0,transparent 100%),radial-gradient(1px 1px at 88% 55%,rgba(122,99,240,.5) 0,transparent 100%);pointer-events:none}
.footer-top{position:relative;display:grid;grid-template-columns:1.35fr 1fr 1fr 1.2fr;gap:40px;padding:62px 0 38px;color:rgba(255,255,255,.75)}
.footer-brand .logo{margin-bottom:16px;color:#fff}
.footer-brand .logo-mark{background:linear-gradient(140deg,#fff,#e1ecff);color:var(--brand);box-shadow:0 4px 16px rgba(0,0,0,.2)}
.footer-brand .logo-primary{color:#fff}
.footer-brand .logo-sub{color:var(--cyan)}
.footer-slogan{font-size:14px;line-height:1.9;max-width:280px}
.footer-title{color:#fff;font-size:16px;font-weight:700;margin-bottom:18px;letter-spacing:.02em}
.footer-links{display:grid;gap:4px}
.footer-links a{color:rgba(255,255,255,.68);font-size:14px;padding:5px 0;transition:color .2s,transform .2s;display:inline-flex;align-items:center}
.footer-links a:hover{color:#fff;transform:translateX(5px)}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-contact li{display:flex;gap:10px;color:rgba(255,255,255,.68)}
.footer-contact li svg{width:17px;height:17px;fill:none;stroke:var(--cyan);stroke-width:1.8;margin-top:4px;flex-shrink:0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;font-size:13px;color:rgba(255,255,255,.5);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px}
.footer-only{color:rgba(255,255,255,.4);display:inline-flex}
.footer-company{position:relative;z-index:2}
.footer-link-group{display:grid;grid-template-columns:1fr 1fr;gap:10px 20px}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .main-nav{display:none}
  .burger{display:inline-flex}
  .nav-search{width:150px}
  .hero{min-height:540px;padding:100px 0}
  .catalog-item--feature{grid-column:span 12;grid-row:auto;min-height:350px}
  .catalog-item--half,.catalog-item--quarter{grid-column:span 4}
  .hot-card{grid-column:span 12}
  .hot-card:nth-child(3),.hot-card:nth-child(4){grid-column:span 12}
  .secure-panel{grid-template-columns:1fr;padding:34px}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .container{width:calc(100% - 32px)}
  .header-inner{height:66px;gap:10px}
  .mobile-nav{top:66px}
  .logo-primary{font-size:18px}
  .logo-mark{width:40px;height:40px;border-radius:12px}
  .logo-sub{letter-spacing:.15em}
  .header-cta{display:none}
  .nav-search{width:40px;height:42px;padding:0;border-radius:50%;background:var(--bg);display:flex;align-items:center;justify-content:center}
  .nav-search input{display:none}
  .nav-search:focus-within{width:210px;position:absolute;right:66px;top:64px;border-radius:10px;padding:0 16px;background:#fff;box-shadow:var(--shadow-2);z-index:250}
  .nav-search:focus-within input{display:block}
  .nav-search svg{margin:0}
  .hero h1{font-size:32px;letter-spacing:.01em}
  .hero-lead{font-size:15px}
  .hero-actions .btn-large{width:100%}
  .hero-hero-badges{flex-wrap:wrap;margin-top:28px}
  .strip-card{flex-basis:220px}
  .strip-card-pic{height:135px}
  .section-head{display:flex;align-items:center;gap:10px}
  .section-head h2{font-size:22px}
  .section-head h2::before{height:20px}
  .sec-arrow-group{display:none}
  .hot-card{grid-template-columns:1fr}
  .hot-pic{height:175px}
  .catalog-item--half,.catalog-item--quarter{grid-column:span 12}
  .catalog-item--feature{min-height:320px}
  .news-grid{grid-template-columns:1fr}
  .news-card{padding:18px}
  .faq-q{padding:16px;font-size:15px;gap:12px}
  .faq-a p{margin-left:0;padding:12px}
  .footer-top{grid-template-columns:1fr;gap:34px;padding:44px 0 28px}
  .footer-brand .logo{color:#fff}
  .footer-links a{font-size:15px}
  .secure-title{font-size:24px}
  .cta-inner{padding:60px 12px}
}
@media (max-width:520px){
  .catalog-content{padding:20px}
  .catalog-content p{display:none}
  .catalog-item,.catalog-item--feature{min-height:210px}
  .catalog-content h3,.catalog-item--half .catalog-content h3{font-size:18px}
  .hero h1{font-size:27px}
  .hero-hero-badges .hero-shot-badge{font-size:11px;padding:5px 10px}
  .secure-panel{padding:24px 20px}
  .secure-line{flex-direction:column}
  .secure-mini-card{flex-direction:column}
}

/* roulang page: category1 */
/* ===== 设计变量与基础 ===== */
  :root{
    --bg-page:#F2F6FC;
    --bg-card:#FFFFFF;
    --brand:#1B5BF6;
    --brand-deep:#0D3B9F;
    --dark-section:#091C3E;
    --dark-section2:#102A57;
    --cyan:#49C8E8;
    --purple:#7A63F0;
    --orange:#FFAD4D;
    --text-main:#0B1B33;
    --text-sub:#48658B;
    --text-minor:#7E93B0;
    --text-white:#FFFFFF;
    --line:#D9E4F2;
    --line-soft:#E3EBF7;
    --shadow-card:0 2px 10px rgba(10,30,80,0.06);
    --shadow-float:0 16px 36px rgba(10,30,80,0.12);
    --radius:16px;
    --radius-btn:10px;
    --container:1200px;
    --space: 72px;
    --font-family: -apple-system, BlinkMacSystemFont, "Noto Sans SC", "HarmonicOS Sans SC", "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  }

  *,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
  html{ scroll-behavior:smooth; }
  body{
    background:var(--bg-page);
    color:var(--text-main);
    font-family:var(--font-family);
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  ul,li{ list-style:none; }
  a{ text-decoration:none; color:inherit; }
  img{ max-width:100%; display:block; }
  button,input,textarea{ font-family:inherit; }
  input:focus,textarea:focus,button:focus,a:focus{ outline:2px solid rgba(27,91,246,0.25); outline-offset:1px; }
  .container{ max-width:var(--container); margin:0 auto; padding-left:24px; padding-right:24px; width:100%; }
  .section-icon{ display:inline-flex; vertical-align:middle; margin-right:8px; }
  .sr-only{ position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; }

  h1,h2,h3,h4{ line-height:1.4; color:var(--text-main); font-weight:700; }

  /* 通用按钮 */
  .btn{ display:inline-flex; align-items:center; justify-content:center; gap:8px; font-weight:600; border:0; cursor:pointer; transition:all .25s ease; border-radius:var(--radius-btn); padding:10px 24px; text-align:center; }
  .btn-primary{ background:var(--brand); color:#fff; box-shadow:0 6px 14px rgba(27,91,246,0.25); }
  .btn-primary:hover{ background:var(--brand-deep); transform:translateY(-2px); box-shadow:0 10px 22px rgba(27,91,246,0.35); }
  .btn-outline-light{ background:rgba(255,255,255,0.08); color:#fff; border:1px solid rgba(255,255,255,0.55); backdrop-filter:blur(4px); }
  .btn-outline-light:hover{ background:rgba(73,200,232,0.2); border-color:var(--cyan); box-shadow:0 0 24px rgba(73,200,232,0.3); }
  .btn-lg{ padding:14px 36px; border-radius:60px; font-size:16px; }
  .btn-white-primary{ background:#fff; color:var(--brand-deep); }
  .btn-white-primary:hover{ background:#ECF2FF; }

  /* 徽标 / 标签 */
  .tag{ display:inline-block; background:rgba(27,91,246,0.08); color:var(--brand-deep); font-size:12px; font-weight:600; border-radius:30px; padding:2px 12px; line-height:24px; letter-spacing:.3px; }
  .tag-cyan{ background:rgba(73,200,232,0.14); color:#0A7C9A; }
  .tag-orange{ background:rgba(255,173,77,0.15); color:#B4690E; }
  .tag-purple{ background:rgba(122,99,240,0.1); color:var(--purple); }

  /* 区块头部 */
  .section-head{ display:flex; align-items:center; justify-content:space-between; margin: 0 0 32px 0; }
  .section-head-left{ display:flex; align-items:center; gap:12px; }
  .section-icon-bar{ width:4px; height:24px; background:var(--brand); border-radius:4px; }
  .section-title{ font-size:24px; line-height:1.4; font-weight:700; color:var(--text-main); letter-spacing:.2px; }
  .section-link{ color:var(--text-sub); display:inline-flex; align-items:center; gap:4px; font-size:14px; transition:.2s; }
  .section-link:hover{ color:var(--brand); }

  @media (max-width:768px){
    .section-title{ font-size:22px; }
  }

  /* ===== 头部导航 ===== */
  .site-header{
    position:sticky; top:0; z-index:999;
    background:rgba(255,255,255,.92); backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line-soft);
    box-shadow:0 1px 12px rgba(10,30,80,0.03);
    width:100%;
  }
  .header-inner{ display:flex; align-items:center; justify-content:space-between; height:68px; gap:20px; }
  .logo{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
  .logo-mark{ width:36px; height:36px; background:linear-gradient(135deg,#1B5BF6,#49C8E8); border-radius:12px; display:flex; align-items:center; justify-content:center; box-shadow:0 4px 12px rgba(27,91,246,.25); }
  .logo-mark svg { width:20px; height:20px; fill:#fff; }
  .logo-text{ display:flex; flex-direction:column; line-height:1.2; }
  .logo-primary{ font-size:18px; font-weight:700; color:var(--text-main); letter-spacing:.2px;}
  .logo-sub{ font-size:11px; font-weight:600; color:var(--brand); letter-spacing:.5px; }

  .main-nav{ display:flex; align-items:center; gap:6px; }
  .nav-link{ padding:6px 14px; border-radius:24px; font-size:15px; font-weight:500; color:var(--text-sub); transition:all .2s; white-space:nowrap; }
  .nav-link:hover{ background:rgba(27,91,246,.06); color:var(--brand); }
  .nav-link.active{ background:rgba(27,91,246,.1); color:var(--brand-deep); font-weight:600; }

  .header-tools{ display:flex; align-items:center; gap:14px; }
  .nav-search{ display:flex; align-items:center; background:#F5F8FE; border:1px solid var(--line-soft); border-radius:40px; padding:6px 14px; transition:.2s; width:190px; }
  .nav-search:focus-within{ border-color:var(--brand); background:#fff; box-shadow:0 0 0 2px rgba(27,91,246,.15); }
  .nav-search svg{ width:18px; height:18px; stroke:#7E93B0; margin-right:6px; flex-shrink:0; }
  .nav-search input{ border:0; outline:none; background:transparent; width:100%; font-size:14px; color:var(--text-main); }
  .header-cta{ padding:8px 20px; font-size:14px; box-shadow:0 4px 12px rgba(27,91,246,.2); }

  .burger{ display:none; width:40px; height:40px; border:1px solid var(--line); background:#fff; border-radius:10px; flex-direction:column; align-items:center; justify-content:center; cursor:pointer; gap:4px;}
  .burger span{ display:block; width:18px; height:2px; background:var(--text-main); transition:.2s; }
  .burger-open span:nth-child(1){ transform: translateY(6px) rotate(45deg); }
  .burger-open span:nth-child(2){ opacity:0; }
  .burger-open span:nth-child(3){ transform: translateY(-6px) rotate(-45deg); }

  /* 移动导航面板 */
  .mobile-nav{ display:none; }
  @media (max-width: 1024px){
    .main-nav{ display:none; }
    .nav-search{ width:140px; }
    .burger{ display:flex; }
    .mobile-nav{ position:fixed; top:68px; left:0; right:0; background:rgba(9,28,62,.98); backdrop-filter:blur(6px); padding:12px 20px 20px; display:block; visibility:hidden; opacity:0; transform:translateY(-8px); transition:.24s; z-index:998; border-radius:0 0 16px 16px; max-height:0; overflow:hidden; }
    .mobile-nav.open{ visibility:visible; opacity:1; transform:translateY(0); max-height:600px; overflow:auto;}
    .mobile-nav a{ display:block; color:#fff; padding:14px 18px; font-size:17px; font-weight:500; border-bottom:1px solid rgba(255,255,255,.1); border-radius:8px;}
    .mobile-nav a:hover{ background:rgba(255,255,255,.08);}
    .mobile-nav a.active{ color:var(--cyan); background:rgba(255,255,255,.05); }
    .header-tools .nav-search{ display:none; }
  }
  @media (max-width:580px){
    .container{ padding-left:16px; padding-right:16px; }
    .header-inner{ height:62px; gap:8px; }
    .logo-primary{ font-size:17px; }
    .logo-sub{ display:none; }
    .header-cta{ padding:6px 16px; font-size:13px; margin-left:auto; }
  }

  /* ===== Hero 区 (横幅类, 比其他页面略窄) ===== */
  .category-hero{
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover; background-position:center;
    padding:0; position:relative; display:flex; align-items:flex-end;
    min-height:440px;
    border-radius:0px 0px 32px 32px;
    overflow:hidden;
  }
  .category-hero::before{
    content:''; position:absolute; inset:0;
    background:linear-gradient(90deg, rgba(5,10,25,.75) 0%, rgba(5,10,25,.4) 45%, rgba(5,13,38,.15) 100%);
  }
  .category-hero .hero-inner{ position:relative; z-index:2; width:100%; padding:60px 0 46px; color:#fff; max-width:1200px; margin:0 auto; }
  @media (min-width:1200px){ .category-hero .hero-inner{ width:1200px; padding-left:24px; padding-right:24px; } }
  .category-hero-overlay-text{ max-width:680px; padding-bottom:8px; }
  .category-hero .hero-breadcrumb{ display:flex; flex-wrap:wrap; gap:6px 10px; font-size:13px; color:rgba(255,255,255,.85); margin-bottom:14px; }
  .category-hero .hero-breadcrumb a{ color:#fff; opacity:.85; text-decoration:underline; text-underline-offset:3px; }
  .category-hero .hero-breadcrumb a:hover{ opacity:1; color:var(--cyan); }
  .category-hero h1{ color:#fff; font-size:36px; line-height:1.4; font-weight:800; text-shadow:0 2px 20px rgba(0,0,0,.2); margin-bottom:14px; }
  .category-hero .hero-desc{ font-size:17px; line-height:1.9; color:rgba(255,255,255,.92); max-width:600px; }
  .hero-actions{ display:flex; gap:16px; margin-top:26px; flex-wrap:wrap; }
  @media (max-width:768px){
    .category-hero{ min-height:360px; border-radius:0 0 18px 18px; }
    .category-hero h1{ font-size:28px; }
  }
  @media (max-width:520px){
    .category-hero .hero-inner{ padding-top:40px; }
    .category-hero h1{ font-size:24px; }
    .category-hero .hero-desc{ font-size:15px; }
  }

  /* 板块通用 */
  .platform-section{ padding:64px 0; }
  @media (max-width:768px){ .platform-section{ padding:48px 0; } }
  .bg-soft{ background:#EDF3FC; }
  .bg-deep-section{ background:linear-gradient(135deg,#102B66 0%,#0B1F4A 55%,#081532 100%); color:#fff; }

  /* 左文右图模块 */
  .split-block{ display:grid; grid-template-columns:7fr 5fr; gap:48px; align-items:center; }
  .split-image{ border-radius:24px; overflow:hidden; box-shadow:var(--shadow-float); }
  .split-image img{ width:100%; height:auto; aspect-ratio:4/3; object-fit:cover; }
  .content-sub-title{ color:var(--brand-deep); font-weight:700; font-size:14px; letter-spacing:.3px; margin-bottom:16px; display:flex; align-items:center; gap:10px; text-transform: uppercase;}
  .content-title{ font-size:26px; font-weight:700; color:var(--text-main); margin-bottom:20px; }
  .feature-list{ display:flex; flex-direction:column; gap:14px; }
  .feature-item{ display:flex; align-items:flex-start; gap:12px; }
  .feature-item svg{ width:22px; height:22px; flex-shrink:0; margin-top:3px; }
  .feature-item strong{ font-size:16px; font-weight:600; color:var(--text-main); }
  .feature-item p{ font-size:14px; color:var(--text-sub); line-height:1.8; margin-top:2px; }
  @media (max-width:900px){ .split-block{ grid-template-columns:1fr; gap:24px; } .content-title{ font-size:23px; } .split-image img{ aspect-ratio:16/10; } }

  /* 图标方格列表 */
  .icon-grid-list{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
  .icon-item{ background:#fff; border:1px solid var(--line-soft); padding:28px 18px; border-radius:18px; text-align:left; transition:.25s; box-shadow:var(--shadow-card); }
  .icon-item:hover{ transform:translateY(-4px); box-shadow:var(--shadow-float); border-color:#C4D6FA; }
  .icon-item .icon-circle{ width:46px;height:46px; background:rgba(27,91,246,.08); border-radius:14px; display:flex; align-items:center; justify-content:center; margin-bottom:16px; }
  .icon-item .icon-circle svg{ width:24px;height:24px; stroke:var(--brand--deep); fill:none; stroke-width:1.8;}
  .icon-item h3{ font-size:16px; font-weight:600; margin-bottom:8px; color:var(--text-main); }
  .icon-item p{ font-size:14px; color:var(--text-sub); margin-top:4px; }
  @media (max-width:1000px){ .icon-grid-list{ grid-template-columns:repeat(2,1fr); } }
  @media (max-width:560px){ .icon-grid-list{ grid-template-columns:1fr; } }

  /* 次链接卡片区域 (带背景配图，横向) */
  .secondary-links-cards{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
  .sec-link-card{ background:#fff; border-radius:18px; overflow:hidden; box-shadow:var(--shadow-card); display:flex; flex-direction:column; transition:.25s; border:1px solid var(--line-soft);}
  .sec-link-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-float); }
  .sec-link-card .card-visual{ width:100%; aspect-ratio:16/8; overflow:hidden; }
  .sec-link-card .card-visual img{ width:100%; height:100%; object-fit:cover; transition:.4s; }
  .sec-link-card:hover .card-visual img{ transform:scale(1.04); }
  .sec-link-card .card-body{ padding:20px 20px; }
  .sec-link-card h3{ font-size:18px; font-weight:700; color:var(--text-main); margin-bottom:6px; }
  .sec-link-card .card-desc{ font-size:14px; color:var(--text-sub); margin-bottom:14px; }
  .link-arrow{ font-size:14px; color:var(--brand); font-weight:500; display:inline-flex; align-items:center; gap:4px; }
  .link-arrow:hover{ gap:8px; }
  @media (max-width:900px){ .secondary-links-cards{ grid-template-columns:repeat(2,1fr);} }
  @media (max-width:600px){ .secondary-links-cards{ grid-template-columns:1fr; } }

  /* 适用场景三步/带图案横幅 */
  .scene-tips{ display:grid; grid-template-columns:2.5fr 3fr; gap:44px; align-items:center; background:linear-gradient(112deg, #1A3B7A 0%, #0B2149 60%, #102A57 100%); border-radius:24px; padding:40px; color:#fff; box-shadow:0 20px 36px rgba(4,18,50,.25); margin: 48px 0;}
  .scene-tips h3{ color:#fff; font-size:24px; margin-bottom:12px; }
  .scene-tips p{color:rgba(255,255,255,.86);}
  .scene-tips-meta{ margin-top:24px; display:flex; gap:18px; flex-wrap:wrap;}
  .scene-tips-meta span{ background:rgba(255,255,255,.12); border-radius:40px; padding:4px 16px; font-size:14px; display:inline-flex; align-items:center; gap:6px;}
  .scene-tips-meta span svg{ width:16px; height:16px; }
  .scene-tips-link{ margin-top:20px; display:inline-flex; }
  @media (max-width:900px){ .scene-tips{ grid-template-columns:1fr; padding:28px;} }

  /* 双列内容介绍(安全流程) */
  .safe-panel{ display:grid; grid-template-columns:1.1fr .9fr; gap:28px; }
  .safe-step-item{ display:flex; background:#fff; border-radius:14px; padding:12px 10px; align-items:flex-start; gap:12px; box-shadow: var(--shadow-card); }
  .step-num{ width:28px;height:28px;border-radius:50%; background:rgba(73,200,232,.15); color:#0A6F8E; font-weight:800; display:flex; align-items:center;justify-content:center; }
  @media (max-width:768px){ .safe-panel{ grid-template-columns:1fr; } }

  /* CTA 深色 */
  .cta-dark-section{ background:linear-gradient(135deg,#102B66 0%,#0B1F4A 55%,#081532 100%); border-radius:24px; color:#fff; text-align:center; padding:56px 30px; position:relative; overflow:hidden; }
  .cta-dark-section::after{ content:''; position:absolute; right:-80px; top:-120px; width:300px;height:300px; background:rgba(122,99,240,.2); filter:blur(80px); border-radius:50%;}
  .cta-dark-section h2{ color:#FFF; font-size:30px; margin-bottom:16px; }
  .cta-dark-section p{ color:rgba(255,255,255,.86); margin-bottom:30px; font-size:16px; }
  .cta-buttons{ display:flex; gap:18px; justify-content:center; flex-wrap:wrap; }
  @media(max-width:580px){ .cta-dark-section h2{ font-size:22px; } }

  /* FAQ */
  .faq-wrap{ max-width:920px; margin:0 auto; display:flex; flex-direction:column; gap:16px; }
  .faq-item{ background:#fff; border:1px solid var(--line-soft); border-radius:14px; overflow:hidden; box-shadow:var(--shadow-card); transition:.2s; }
  .faq-item-title{ display:flex; align-items:center; justify-content:space-between; gap:16px; padding:22px 24px; cursor:pointer; font-size:16px; font-weight:600; color:var(--text-main); }
  .faq-icon{ width:26px;height:26px; flex-shrink:0; background:rgba(73,200,232,.15); border-radius:50%; display:flex; align-items:center; justify-content:center; transition:.3s; color:#087A98; font-size:20px; font-weight:300; line-height:1; }
  .faq-active .faq-icon{ transform:rotate(45deg); background:rgba(27,91,246,.15); color:var(--brand-deep);}
  .faq-item-ans{ max-height:0; overflow:hidden; padding:0 24px; color:var(--text-sub); transition:max-height .3s ease; font-size:15px; line-height:1.85; border-top:0 solid var(--line-soft); }
  .faq-active .faq-item-ans{ border-top-width:1px; background:#F8FAFF; padding-bottom:22px; }

  /* 页脚 */
  .site-footer{ background:linear-gradient(135deg,#030F2C,#081532 70%); color:rgba(255,255,255,.7); margin-top:48px; }
  .footer-top{ display:grid; grid-template-columns:1.4fr .8fr .8fr 1.2fr; gap:36px; padding:50px 0 38px; }
  .footer-brand .logo .logo-primary{ color:#fff; }
  .footer-brand .logo .logo-sub{ color:var(--cyan); }
  .footer-slogan{ font-size:15px; line-height:1.9; margin-top:16px;max-width:300px; }
  .footer-title{ color:#fff; font-size:16px; font-weight:600; margin-bottom:16px; }
  .footer-links{ display:flex; flex-direction:column; gap:6px; }
  .footer-links a{ color:rgba(255,255,255,.65); font-size:14px; display:inline-block; padding:2px 0; }
  .footer-links a:hover{ color:var(--cyan); }
  .footer-contact li{display:flex; gap:8px; font-size:14px; align-items:center; margin-bottom:8px;}
  .footer-contact svg{ width:18px; height:18px; fill:none; stroke:#49C8E8; stroke-width:1.6; flex-shrink:0}
  .footer-bottom{ border-top:1px solid rgba(255,255,255,.12); padding:24px 0; display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:14px; color:rgba(255,255,255,.45);}
  .footer-only{ color:rgba(255,255,255,.6); font-size:14px; }
  @media (max-width:1000px){ .footer-top{ grid-template-columns:1fr 1fr; } }
  @media (max-width:600px){ .footer-top{ grid-template-columns:1fr; } .footer-bottom{flex-direction:column;} }

  /* 通用分组 */
  .viewport-header-meta{ font-size:14px; color: var(--text-sub); margin-top: 12px; }

/* roulang page: article */
:root {
  --bg: #F2F6FC;
  --card: #FFFFFF;
  --brand: #1B5BF6;
  --brand-deep: #0D3B9F;
  --navy: #091C3E;
  --navy-soft: #102A57;
  --cyan: #49C8E8;
  --purple: #7A63F0;
  --orange: #FFAD4D;
  --text-strong: #0B1B33;
  --text-1: #48658B;
  --text-2: #7E93B0;
  --white: #FFFFFF;
  --line: #E3EBF7;
  --border: #D9E4F2;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(10, 30, 80, 0.06);
  --shadow-md: 0 12px 28px rgba(10, 30, 80, 0.10);
  --shadow-hover: 0 18px 42px rgba(10, 30, 80, 0.15);
  --max-width: 1200px;
  --content-width: 860px;
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-strong);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  line-height: 1.35;
  color: var(--text-strong);
  font-weight: 700;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

button, input {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

input:focus {
  outline: none;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container-narrow {
  max-width: var(--content-width);
  margin: 0 auto;
}

.section {
  padding: 72px 0;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
  line-height: 1;
}

.btn-primary {
  background: var(--brand);
  color: var(--white);
  box-shadow: 0 8px 20px rgba(27, 91, 246, 0.24);
}

.btn-primary:hover {
  background: var(--brand-deep);
  box-shadow: 0 10px 26px rgba(13, 59, 159, 0.30);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-light {
  background: var(--white);
  color: var(--brand-deep);
}

.btn-light:hover {
  background: #EDF3FF;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--brand-deep);
}

.btn-outline-light {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.6);
  color: var(--white);
  backdrop-filter: blur(6px);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: var(--white);
  color: var(--white);
}

.btn-orange {
  background: var(--orange);
  color: #5A2E00;
}

.btn-orange:hover {
  background: #ffc170;
  color: #462400;
  transform: translateY(-2px);
}

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 12px rgba(9, 28, 62, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  min-height: 72px;
  gap: 28px;
  flex-wrap: nowrap;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, #1B5BF6, #0D3B9F);
  color: var(--white);
  box-shadow: 0 8px 18px rgba(27, 91, 246, 0.26);
}

.logo-mark svg {
  width: 23px;
  height: 23px;
  fill: currentColor;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-primary {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--text-strong);
}

.logo-sub {
  font-size: 11px;
  font-weight: 600;
  color: var(--brand);
  letter-spacing: 0.22em;
  margin-top: 3px;
  padding: 2px 6px;
  background: rgba(27, 91, 246, 0.08);
  border-radius: 6px;
  display: inline-block;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.main-nav .nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 44px;
  padding: 0 15px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-1);
  transition: all 0.2s ease;
}

.main-nav .nav-link:hover {
  color: var(--brand);
  background: rgba(27, 91, 246, 0.06);
}

.main-nav .nav-link.active {
  color: var(--brand);
  font-weight: 600;
  background: rgba(27, 91, 246, 0.08);
}

.main-nav .nav-link.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 3px;
  width: 18px;
  height: 3px;
  border-radius: 4px;
  background: var(--brand);
  transform: translateX(-50%);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-search {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 194px;
  height: 40px;
  padding: 0 12px;
  background: #F4F8FF;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: all 0.2s ease;
}

.nav-search svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}

.nav-search input {
  width: 100%;
  min-width: 0;
  border: none;
  background: transparent;
  font-size: 13px;
  color: var(--text-strong);
  line-height: 1;
}

.nav-search input::placeholder {
  color: var(--text-2);
}

.nav-search:focus-within {
  border-color: var(--brand);
  background: var(--white);
  box-shadow: 0 0 0 2px rgba(27, 91, 246, 0.16);
}

.header-cta {
  height: 40px;
  padding: 0 18px;
  font-size: 14px;
  border-radius: 999px;
  box-shadow: 0 6px 16px rgba(27, 91, 246, 0.22);
}

.burger {
  display: none;
  width: 42px;
  height: 42px;
  background: #F3F7FF;
  border: 0;
  border-radius: 12px;
  position: relative;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.burger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-strong);
  border-radius: 3px;
  position: relative;
  transition: transform 0.3s ease;
}

.burger span::before,
.burger span::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 2px;
  background: var(--text-strong);
  border-radius: 3px;
  transition: all 0.3s ease;
}

.burger span::before {
  top: -6px;
}

.burger span::after {
  top: 6px;
}

.site-header.nav-open .burger span {
  background: transparent;
}

.site-header.nav-open .burger span::before {
  transform: rotate(45deg);
  top: 0;
}

.site-header.nav-open .burger span::after {
  transform: rotate(-45deg);
  top: 0;
}

/* ============ Article Banner ============ */
.article-page {
  background: var(--bg);
}

.article-banner {
  min-height: 238px;
  display: flex;
  align-items: flex-end;
  padding: 70px 0 116px;
  color: var(--white);
  background:
    linear-gradient(120deg, rgba(5, 22, 52, 0.68) 0%, rgba(10, 38, 86, 0.56) 55%, rgba(2, 13, 35, 0.72) 100%),
    url("/assets/images/backpic/back-1.webp") center / cover no-repeat;
  position: relative;
  overflow: hidden;
}

.article-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.02), rgba(4, 14, 36, 0.18));
}

.breadcrumb {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.82);
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.82);
}

.breadcrumb a:hover {
  color: var(--white);
}

.breadcrumb .sep {
  opacity: 0.56;
}

.banner-hint {
  position: relative;
  z-index: 2;
  margin-top: 20px;
}

.banner-hint .pill-light {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.14);
  color: var(--white);
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  font-size: 13px;
  backdrop-filter: blur(6px);
}

/* ============ 文章主栏 ============ */
.article-main-area {
  position: relative;
  z-index: 5;
  margin-top: -76px;
  padding: 0 24px 72px;
}

.article-card {
  max-width: 940px;
  margin: 0 auto;
  background: var(--card);
  border-radius: 24px;
  box-shadow: 0 18px 48px rgba(10, 30, 80, 0.12);
  padding: 62px 72px 52px;
  border: 1px solid rgba(217, 228, 242, 0.6);
}

.article-category {
  display: inline-flex;
  align-items: center;
  background: rgba(27, 91, 246, 0.08);
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  padding: 5px 14px;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}

.article-card h1 {
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--text-strong);
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 24px;
  color: var(--text-2);
  font-size: 13px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 32px;
}

.article-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-meta svg {
  width: 15px;
  height: 15px;
  stroke: var(--text-2);
  fill: none;
}

.article-content {
  max-width: 760px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.9;
  color: #243D5A;
}

.article-content p {
  margin-bottom: 1.8em;
}

.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 1.6em 0 0.8em;
  color: var(--text-strong);
}

.article-content h3 {
  font-size: 19px;
  font-weight: 700;
  margin: 1.5em 0 0.7em;
  color: var(--text-strong);
}

.article-content img {
  border-radius: 14px;
  margin: 28px auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  height: auto;
}

.article-content a {
  color: var(--brand);
  border-bottom: 1px solid rgba(27, 91, 246, 0.28);
}

.article-content a:hover {
  color: var(--brand-deep);
  border-color: var(--brand-deep);
}

.article-content ul {
  margin: 0 0 1.8em 1.5em;
  color: #243D5A;
}

.article-content li {
  margin-bottom: 0.6em;
  padding-left: 2px;
}

.article-content blockquote {
  background: #F0F6FF;
  border-left: 4px solid var(--brand);
  padding: 18px 22px;
  border-radius: 0 14px 14px 0;
  color: var(--text-1);
  margin: 0 0 1.8em;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
}

.article-content th,
.article-content td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}

.article-content th {
  background: #F4F8FF;
  font-weight: 600;
}

/* 正文内登录转化位 */
.login-guide-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: linear-gradient(135deg, #102B66 0%, #0B1F4A 55%, #081532 100%);
  border-radius: 20px;
  padding: 26px 30px;
  margin: 38px 0 42px;
  color: var(--white);
  box-shadow: 0 16px 34px rgba(8, 21, 50, 0.24);
  flex-wrap: wrap;
}

.login-guide-box .guide-icon {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.login-guide-box .guide-icon svg {
  width: 24px;
  height: 24px;
  fill: var(--orange);
}

.login-guide-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--white);
}

.login-guide-copy {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.74);
  margin-top: 6px;
  line-height: 1.7;
}

.login-guide-box .guide-cta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-glow-yellow {
  background: var(--orange);
  color: #3D2500;
  border-radius: 999px;
  height: 46px;
  padding: 0 26px;
  font-weight: 700;
  box-shadow: 0 0 24px rgba(255, 173, 77, 0.42);
}

.btn-glow-yellow:hover {
  background: #FFC07A;
  color: #2D1C00;
  transform: translateY(-2px);
}

/* 文末标签 */
.article-end-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 38px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.tag-chip {
  display: inline-block;
  padding: 6px 15px;
  background: #F2F6FF;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-1);
  font-size: 13px;
  transition: all 0.2s ease;
}

.tag-chip:hover {
  color: var(--brand);
  border-color: rgba(27, 91, 246, 0.34);
  background: rgba(27, 91, 246, 0.04);
}

.article-footer-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 26px;
  flex-wrap: wrap;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand);
}

.back-link:hover {
  color: var(--brand-deep);
}

.share-block {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-2);
  font-size: 14px;
}

.share-links {
  display: flex;
  gap: 8px;
}

.share-circle {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: #EDF3FF;
  color: var(--text-1);
}

.share-circle:hover {
  background: var(--brand);
  color: var(--white);
}

.share-circle svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
}

/* 无文章状态 */
.article-notfound {
  max-width: 760px;
  margin: 0 auto;
  background: var(--card);
  border-radius: 22px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  padding: 88px 40px;
  text-align: center;
  color: var(--text-1);
}

.article-notfound p {
  font-size: 20px;
  color: var(--text-strong);
  margin-bottom: 24px;
}

/* ============ Related ============ */
.section-related {
  background: var(--bg);
  padding-top: 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 38px;
}

.section-head .title-box {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.section-head .title-line {
  width: 5px;
  height: 32px;
  border-radius: 6px;
  background: linear-gradient(180deg, var(--brand), var(--cyan));
  margin-top: 5px;
}

.section-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-strong);
}

.section-desc {
  color: var(--text-2);
  font-size: 14px;
  margin-top: 8px;
}

.section-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand);
  white-space: nowrap;
}

.section-more:hover {
  color: var(--brand-deep);
  gap: 10px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  background: var(--card);
  border-radius: 20px;
  border: 1px solid rgba(217, 228, 242, 0.7);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 38px rgba(10, 30, 80, 0.13);
}

.related-card .card-img {
  overflow: hidden;
  position: relative;
  aspect-ratio: 16 / 10;
}

.related-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.related-card:hover .card-img img {
  transform: scale(1.05);
}

.related-card .card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6, 20, 48, 0.10), transparent 46%);
}

.related-card .card-tag {
  position: absolute;
  left: 16px;
  top: 16px;
  z-index: 2;
  background: rgba(9, 28, 62, 0.72);
  color: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 3px 12px;
  font-size: 12px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}

.related-card .card-body {
  padding: 20px 20px 18px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.related-card .card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-strong);
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card .card-text {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card .card-link {
  margin-top: auto;
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
  font-size: 14px;
}

.related-card .card-link:hover {
  color: var(--brand-deep);
  gap: 8px;
}

/* ============ FAQ ============ */
.faq-section {
  background: #EAF1FB;
  padding: 76px 0;
}

.faq-section .section-title {
  margin-bottom: 8px;
}

.faq-list {
  max-width: 920px;
  margin: 30px auto 0;
  background: var(--card);
  border-radius: 22px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-item {
  border-bottom: 1px solid var(--line);
  background: var(--card);
  transition: background 0.2s;
}

.faq-item:last-child {
  border-bottom: 0;
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 26px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-strong);
  transition: background 0.2s;
  user-select: none;
}

.faq-q:hover {
  background: #F6FAFF;
}

.faq-q .icon-q {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: 999px;
  background: rgba(27, 91, 246, 0.08);
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: transform 0.3s, background 0.2s;
}

.faq-item.open .faq-q .icon-q {
  transform: rotate(45deg);
  background: rgba(27, 91, 246, 0.14);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-a-inner {
  padding: 0 26px 22px;
  color: var(--text-1);
  font-size: 15px;
  line-height: 1.85;
}

.faq-item.open .faq-a {
  max-height: 280px;
}

.faq-item.open {
  background: #F7FBFF;
}

/* ============ CTA ============ */
.cta-section {
  background: linear-gradient(125deg, #102B66 0%, #0B1F4A 52%, #080F2D 100%);
  padding: 88px 0;
  color: var(--white);
  text-align: center;
  background-image:
    linear-gradient(127deg, rgba(16, 43, 102, 0.82), rgba(5, 14, 38, 0.90)),
    url("/assets/images/backpic/back-2.webp");
  background-size: cover;
  background-position: center;
}

.cta-section h2 {
  color: var(--white);
  font-size: clamp(26px, 3.2vw, 36px);
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-section p {
  max-width: 680px;
  margin: 0 auto 28px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 16px;
  line-height: 1.8;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-note {
  margin-top: 18px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.46);
}

/* ============ Footer ============ */
.site-footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.74);
  padding-top: 68px;
  font-size: 14px;
}

.site-footer .logo .logo-primary {
  color: var(--white);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1.1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo {
  margin-bottom: 18px;
}

.footer-slogan {
  color: rgba(255, 255, 255, 0.64);
  line-height: 1.9;
  font-size: 14px;
  max-width: 320px;
}

.footer-title {
  color: var(--white);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.64);
  font-size: 14px;
  transition: all 0.2s ease;
  width: fit-content;
}

.footer-links a:hover {
  color: var(--cyan);
  padding-left: 4px;
}

.footer-contact {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.64);
  word-break: break-all;
}

.footer-contact svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  stroke: rgba(255, 255, 255, 0.5);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0;
  color: rgba(255, 255, 255, 0.42);
  font-size: 13px;
  flex-wrap: wrap;
}

.footer-only {
  color: rgba(255, 255, 255, 0.32);
}

/* ============ Responsive ============ */
@media (max-width: 1100px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 992px) {
  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(9, 28, 62, 0.98);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 14px;
    margin: 0;
    padding: 40px 30px;
    transform: translateY(101%);
    transition: transform 0.3s ease;
    z-index: -1;
    backdrop-filter: blur(8px);
  }

  .site-header.nav-open .main-nav {
    transform: translateY(0);
    z-index: 140;
  }

  .main-nav .nav-link {
    color: rgba(255, 255, 255, 0.88);
    font-size: 20px;
    height: 56px;
    padding: 0 36px;
    background: transparent;
  }

  .main-nav .nav-link:hover,
  .main-nav .nav-link.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
  }

  .main-nav .nav-link.active::after {
    display: none;
  }

  .burger {
    display: flex;
    z-index: 200;
  }

  .header-tools {
    margin-left: auto;
  }

  .nav-search {
    display: none;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 52px 0;
  }

  .header-inner {
    min-height: 66px;
  }

  .logo-mark {
    width: 38px;
    height: 38px;
    border-radius: 12px;
  }

  .header-cta {
    width: 42px;
    padding: 0;
    font-size: 0;
    border-radius: 999px;
  }

  .header-cta::before {
    content: "进入";
    font-size: 13px;
  }

  .article-banner {
    min-height: 170px;
    padding-bottom: 96px;
    padding-top: 40px;
  }

  .article-main-area {
    margin-top: -60px;
    padding: 0 0 52px;
  }

  .article-card {
    border-radius: 0;
    box-shadow: none;
    padding: 42px 22px 38px;
  }

  .section-related {
    padding-top: 0;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .login-guide-box {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
  }

  .cta-section {
    padding: 68px 0;
    border-radius: 0;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 36px 28px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .faq-q {
    padding: 18px 16px;
  }

  .faq-a-inner {
    padding: 0 16px 18px;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-ctas {
    width: 100%;
  }

  .btn {
    height: 42px;
  }

  .section-head {
    margin-bottom: 26px;
  }

  .section-title {
    font-size: 22px;
  }

  .article-card h1 {
    font-size: 25px;
  }

  .section-more {
    font-size: 13px;
  }

  .related-card .card-title {
    font-size: 16px;
  }

  .article-footer-line {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (min-width: 769px) and (max-width: 1200px) {
  .article-card {
    padding: 52px;
  }
}

/* roulang page: category3 */
:root{
  --primary:#1B5BF6;
  --primary-dark:#0D3B9F;
  --ocean:#49C8E8;
  --violet:#7A63F0;
  --amber:#FFAD4D;
  --bg:#F2F6FC;
  --card:#FFFFFF;
  --text:#0B1B33;
  --text2:#48658B;
  --text3:#7E93B0;
  --white:#FFFFFF;
  --border:#D9E4F2;
  --line:#E3EBF7;
  --radius:16px;
  --radius-sm:10px;
  --shadow-base:0 2px 10px rgba(10,30,80,0.06);
  --shadow-hover:0 16px 36px rgba(10,30,80,0.12);
  --navy:#091C3E;
  --navy-2:#102A57;
  --font:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer}
input,textarea{font-family:inherit}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-head{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:36px;gap:20px;
}
.section-title-wrap{display:flex;align-items:center;gap:12px}
.section-bar{width:4px;height:22px;border-radius:4px;background:var(--primary);flex:none}
.section-title{
  font-size:26px;font-weight:700;color:var(--text);
  letter-spacing:0;
}
.section-lead{color:var(--text2);font-size:15px;max-width:760px;margin-top:8px}
.section-link{
  color:var(--text2);font-size:14px;display:flex;align-items:center;gap:6px;
  padding:8px 14px;border:1px solid var(--border);border-radius:60px;
  background:var(--card);transition:all .2s ease;
}
.section-link:hover{color:var(--primary);border-color:var(--primary);transform:translateY(-2px)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;font-weight:600;border-radius:10px;
  transition:all .22s ease;line-height:1;
  font-size:15px;
  padding:14px 28px;
}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(27,91,246,.22)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 28px rgba(13,59,159,.26)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.7)}
.btn-ghost:hover{background:rgba(255,255,255,.15);border-color:#fff;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--primary-dark)}
.btn-light:hover{box-shadow:0 12px 26px rgba(255,255,255,.3);transform:translateY(-2px)}
.btn-amber{background:var(--amber);color:#0B1B33}
.btn-amber:hover{filter:brightness(.96);transform:translateY(-2px)}
.tag{
  display:inline-block;padding:4px 10px;border-radius:6px;
  background:#EAF2FF;color:var(--primary);font-size:12px;font-weight:500;
}
.tag-ocean{background:rgba(73,200,232,.12);color:#0483A8}
.tag-amber{background:rgba(255,173,77,.16);color:#A65E00}
.tag-violet{background:rgba(122,99,240,.1);color:#5B44D9}

/* ========== header ========== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  height:68px;
}
.header-inner{
  height:68px;display:flex;align-items:center;justify-content:flex-start;
  gap:34px;position:relative;
}
.logo{flex:none;display:flex;align-items:center;gap:10px}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,#1B5BF6 0%,#49C8E8 100%);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(27,91,246,.25);
}
.logo-mark svg{width:22px;height:22px;fill:#fff}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-primary{font-size:19px;font-weight:800;color:var(--text)}
.logo-sub{font-size:11px;font-weight:600;color:var(--primary);letter-spacing:1px}
.main-nav{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;color:var(--text2);font-size:15px;font-weight:500;
  white-space:nowrap;padding:8px 4px;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:3px;
  border-radius:3px;background:var(--primary);transition:right .24s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{right:0}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:6px;
  background:#f4f8fe;border:1px solid var(--border);
  border-radius:60px;padding:0 10px;height:38px;
  transition:all .2s ease;
}
.nav-search svg{width:18px;height:18px;flex:none}
.nav-search input{
  width:120px;border:0;background:transparent;height:34px;outline:none;
  font-size:13px;color:var(--text);
}
.nav-search:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 2px rgba(27,91,246,.16);
  background:#fff;
}
.header-cta{padding:11px 20px;border-radius:60px;font-size:14px}
.burger{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--border);background:var(--card);
  place-items:center;
}
.burger span,.burger span:before,.burger span:after{
  content:"";display:block;height:2px;width:18px;background:var(--text);border-radius:2px;
  transition:all .25s ease;
}
.burger span{position:relative}
.burger span:before{position:absolute;top:-5px;left:0}
.burger span:after{position:absolute;top:5px;left:0}
.burger.open span{background:transparent}
.burger.open span:before{top:0;transform:rotate(45deg)}
.burger.open span:after{top:0;transform:rotate(-45deg)}

/* ========== banner ========== */
.c3-banner{
  position:relative;min-height:480px;display:flex;align-items:center;
  background-image:linear-gradient(96deg,rgba(7,19,39,.74) 0%,rgba(7,24,50,.56) 45%,rgba(8,25,45,.83) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 30%;
  color:#fff;overflow:hidden;
}
.banner-inner{width:100%;position:relative;z-index:2;padding:70px 24px}
.c3-breadcrumb{
  display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);
  border-radius:60px;padding:7px 14px;backdrop-filter:blur(4px);
  color:rgba(255,255,255,.86);font-size:13px;
}
.c3-breadcrumb a:hover{color:var(--ocean)}
.c3-banner h1{
  margin:26px 0 14px;font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:800;
  max-width:760px;text-shadow:0 4px 22px rgba(2,10,27,.35);
}
.c3-banner p{
  font-size:17px;color:rgba(255,255,255,.9);max-width:680px;margin-bottom:28px;line-height:1.9;
}
.banner-badge{
  display:flex;flex-wrap:wrap;gap:12px;
}
.banner-badge .cap{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.13);
  border:1px solid rgba(255,255,255,.18);
  border-radius:60px;padding:8px 14px;font-size:13px;backdrop-filter:blur(4px);
}
.dot{width:6px;height:6px;border-radius:50%;background:var(--ocean)}

/* ========== intro split ========== */
.c3-intro{position:relative;z-index:3}
.intro-wrap{
  display:grid;grid-template-columns:7fr 5fr;gap:64px;align-items:center;
}
.intro-copy h2{font-size:28px;line-height:1.5;font-weight:700;margin-bottom:14px}
.intro-copy .desc{color:var(--text2);font-size:16px;line-height:1.95;margin-bottom:22px}
.intro-list{display:grid;gap:12px;margin:24px 0 30px}
.intro-list li{
  display:flex;gap:10px;align-items:flex-start;color:var(--text2);font-size:15px;
}
.intro-list li svg{width:20px;height:20px;flex:none;margin-top:3px}
.intro-visual{position:relative}
.frame-dots{
  position:absolute;top:-14px;left:-14px;width:86%;height:86%;
  border:1px dashed rgba(73,200,232,.7);border-radius:26px;z-index:-1;
}
.intro-poster{
  position:relative;border-radius:24px;overflow:hidden;
  box-shadow:var(--shadow-hover);aspect-ratio:4/3;
}
.intro-poster img{width:100%;height:100%;object-fit:cover}
.intro-poster .float-tag{
  position:absolute;left:16px;bottom:16px;
  background:rgba(255,255,255,.92);color:var(--text);
  border-radius:60px;padding:9px 16px;font-size:13px;font-weight:600;
  box-shadow:0 10px 24px rgba(4,20,60,.18);
}
.mini-features{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:52px;
}
.mini-feature{
  background:var(--card);border-radius:var(--radius);
  padding:20px;border:1px solid rgba(227,235,247,.7);
  box-shadow:var(--shadow-base);transition:all .22s ease;
}
.mini-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.mini-feature .m-icon{
  width:44px;height:44px;border-radius:12px;margin-bottom:12px;
  display:flex;align-items:center;justify-content:center;
}
.mini-feature .m-icon svg{width:22px;height:22px}
.mf-1 .m-icon{background:rgba(73,200,232,.12);color:#0991B8}
.mf-2 .m-icon{background:rgba(27,91,246,.1);color:var(--primary)}
.mf-3 .m-icon{background:rgba(255,173,77,.16);color:#C97D00}
.mf-4 .m-icon{background:rgba(122,99,240,.1);color:#5B44D9}
.mini-feature h3{font-size:15px;font-weight:600;margin-bottom:6px}
.mini-feature p{font-size:13px;color:var(--text3);line-height:1.7}

/* ========== channel matrix ========== */
.matrix-section{
  background:linear-gradient(180deg,#ecf2fb 0%,#f7faff 100%);
}
.channel-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  grid-template-rows:repeat(2,230px);
  gap:20px;
}
.channel-card{
  position:relative;border-radius:18px;overflow:hidden;display:block;
  box-shadow:var(--shadow-base);transition:all .24s ease;
}
.channel-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.channel-card img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.channel-card:hover img{transform:scale(1.04)}
.channel-card .fade{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,18,40,.08) 0%,rgba(8,18,40,.35) 55%,rgba(5,12,30,.88) 100%);
  transition:background .3s;
}
.channel-card:hover .fade{background:linear-gradient(180deg,rgba(8,18,40,.04) 0%,rgba(8,18,40,.3) 50%,rgba(5,12,30,.92) 100%)}
.channel-info{
  position:absolute;left:0;right:0;bottom:0;padding:20px;color:#fff;
  z-index:2;
}
.channel-info h3{font-size:19px;font-weight:700;margin:6px 0 4px}
.channel-info p{font-size:13px;color:rgba(255,255,255,.82);line-height:1.65}
.channel-link{color:#fff;display:inline-flex;align-items:center;gap:5px;font-size:13px;margin-top:8px;opacity:.8;transition:.2s}
.channel-card:hover .channel-link{opacity:1;color:var(--ocean)}
.card-lg{grid-column:span 2;grid-row:span 2}
.card-lg h3{font-size:26px}
.card-lg p{font-size:15px;max-width:340px}
.card-sm{grid-column:span 1}
.card-sm .channel-info{padding:14px}
.card-sm h3{font-size:16px}
.card-sm .channel-info p{display:none}
.entry-tip{
  margin-top:22px;display:flex;align-items:center;justify-content:flex-end;gap:8px;
  color:var(--text3);font-size:13px;
}

/* ========== steps ========== */
.steps-section{padding-top:30px}
.steps-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:10px;
}
.step-card{
  background:var(--card);border-radius:var(--radius);padding:28px 26px;
  border:1px solid var(--line);box-shadow:var(--shadow-base);
  position:relative;transition:all .22s;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.step-no{
  font-size:42px;font-weight:800;color:var(--primary);
  line-height:1;opacity:.2;position:absolute;right:22px;top:18px;
}
.step-icon{
  width:52px;height:52px;border-radius:14px;margin-bottom:18px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--ocean) 100%);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(27,91,246,.22);
}
.step-icon svg{width:26px;height:26px;stroke:#fff;fill:none;stroke-width:2}
.step-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.step-card p{color:var(--text2);font-size:14px;line-height:1.8}

/* ========== security ========== */
.secure-wrap{
  background:linear-gradient(120deg,#F0FBFF 0%,#F6FBFF 55%,#EFF6FF 100%);
  border:1px solid rgba(73,200,232,.45);
  border-radius:22px;padding:36px;display:grid;grid-template-columns:5fr 7fr;gap:36px;
  align-items:center;
}
.secure-left{display:flex;gap:18px}
.secure-left svg{width:56px;height:56px;flex:none}
.secure-left h3{font-size:21px;font-weight:700;margin-bottom:8px;color:var(--text)}
.secure-left p{color:var(--text2);font-size:14px;line-height:1.8}
.secure-tips{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.secure-tip{
  background:rgba(255,255,255,.95);border-radius:14px;padding:16px;
  border-left:3px solid var(--ocean);box-shadow:var(--shadow-base);
}
.secure-tip h4{font-size:14px;font-weight:600;display:flex;gap:8px;align-items:center;margin-bottom:6px}
.secure-tip h4 svg{width:17px;height:17px}
.secure-tip p{font-size:12.5px;color:var(--text3);line-height:1.7}

/* ========== faq ========== */
.faq-list{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:16px;
  transition:all .24s ease;height:fit-content;
}
.faq-item.full{grid-column:1/-1}
.faq-item:hover{border-color:var(--border);box-shadow:var(--shadow-base)}
.faq-q{
  display:flex;justify-content:space-between;align-items:center;
  gap:16px;padding:20px 22px;cursor:pointer;user-select:none;
}
.faq-q h3{font-size:16px;font-weight:600;line-height:1.5;margin:0}
.faq-q .faq-icon{
  width:28px;height:28px;border-radius:50%;flex:none;
  background:#F0F6FF;display:flex;align-items:center;justify-content:center;
  transition:all .3s;
}
.faq-q .faq-icon svg{width:14px;height:14px;stroke:var(--primary);stroke-width:3}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 22px}
.faq-item.active .faq-a{max-height:260px;padding-bottom:20px}
.faq-item.active .faq-icon{background:var(--ocean);transform:rotate(135deg)}
.faq-item.active .faq-icon svg{stroke:#fff}
.faq-a p{color:var(--text2);font-size:14.5px;line-height:1.8}

/* ========== cta ========== */
.cta-area{
  position:relative;border-radius:28px;overflow:hidden;
  background:linear-gradient(100deg,#0D204A 0%,#0D2A68 60%,#0E3780 100%),url('/assets/images/backpic/back-2.webp');
  background-blend-mode:overlay;background-size:cover;background-position:center 55%;
  padding:62px 58px;text-align:center;color:#fff;
}
.cta-area::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 82% 20%,rgba(73,200,232,.42) 0%,transparent 28%),
             radial-gradient(circle at 8% 82%,rgba(255,173,77,.22) 0%,transparent 24%);
}
.cta-inner{position:relative;z-index:2}
.cta-inner h2{font-size:31px;font-weight:800;line-height:1.4}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.8);max-width:620px;margin:12px auto 28px;line-height:1.9}
.cta-btns{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
.cta-note{font-size:12px;color:rgba(255,255,255,.65);margin-top:18px}

/* ========== footer ========== */
.site-footer{
  background:linear-gradient(135deg,#0B1F4A 0%,#081732 100%);
  color:rgba(255,255,255,.82);margin-top:72px;padding:56px 0 24px;
}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;padding-bottom:38px;
}
.site-footer .logo .logo-primary{color:#fff}
.site-footer .logo .logo-sub{color:var(--ocean)}
.footer-slogan{font-size:14px;line-height:1.9;color:rgba(255,255,255,.65);margin-top:18px}
.footer-title{
  color:#fff;font-size:16px;font-weight:600;margin-bottom:18px;
  position:relative;padding-bottom:10px;
}
.footer-title:after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--ocean);border-radius:2px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.65);transition:.2s}
.footer-links a:hover{color:var(--ocean);padding-left:4px}
.footer-contact{display:flex;flex-direction:column;gap:12px}
.footer-contact li{display:flex;gap:8px;font-size:13.5px;color:rgba(255,255,255,.65);align-items:flex-start}
.footer-contact svg{width:17px;height:17px;flex:none;stroke:rgba(255,255,255,.7);margin-top:3px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:24px;display:flex;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);gap:12px;flex-wrap:wrap;
}

/* ========== responsive ========== */
@media(max-width:1100px){
  .main-nav{gap:18px}
  .nav-search input{width:80px}
}
@media(max-width:1024px){
  .section{padding:56px 0}
  .intro-wrap{grid-template-columns:1fr;gap:40px}
  .intro-visual{max-width:560px}
  .mini-features{grid-template-columns:repeat(2,1fr);gap:14px}
  .channel-grid{grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(3,220px)}
  .card-lg{grid-column:span 2;grid-row:span 2}
  .secure-wrap{grid-template-columns:1fr;gap:28px}
  .steps-grid{grid-template-columns:1fr;gap:18px}
  .faq-list{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:768px){
  .container{padding:0 20px}
  .site-header{height:62px}
  .header-inner{
    height:62px;flex-wrap:nowrap;justify-content:space-between;gap:10px;
  }
  .main-nav{
    position:fixed;top:62px;left:0;right:0;bottom:0;
    background:linear-gradient(180deg,rgba(9,28,62,.98),rgba(9,28,62,.96));
    backdrop-filter:blur(10px);
    flex-direction:column;gap:8px;padding:40px 24px;
    transform:translateX(100%);transition:transform .3s ease;
    align-items:flex-start;justify-content:flex-start;
  }
  .main-nav.open{transform:translateX(0)}
  .nav-link{color:rgba(255,255,255,.85);font-size:18px;font-weight:500;padding:12px 4px;display:block}
  .nav-link::after{display:none}
  .nav-link.active{color:var(--ocean)}
  .header-tools{gap:8px;margin-left:0}
  .nav-search{
    width:38px;height:38px;padding:0;justify-content:center;
  }
  .nav-search input{display:none}
  .header-cta{padding:9px 14px;font-size:13px}
  .burger{display:grid}
  .c3-banner{min-height:400px}
  .c3-banner h1{margin-top:16px;font-size:30px}
  .c3-banner p{font-size:15px}
  .section-head{margin-bottom:28px}
  .section-title{font-size:22px}
  .intro-copy h2{font-size:24px}
  .channel-grid{grid-template-columns:1fr;grid-template-rows:auto}
  .card-lg{grid-column:auto;grid-row:auto}
  .channel-card{height:190px}
  .card-lg{height:240px}
  .card-sm .channel-info p{display:block}
  .secure-wrap{padding:24px}
  .secure-left{flex-direction:column;gap:10px}
  .secure-tips{grid-template-columns:1fr}
  .cta-area{padding:42px 20px;border-radius:20px}
  .cta-inner h2{font-size:25px}
  .footer-top{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}
@media(max-width:520px){
  .logo-primary{font-size:17px}
  .logo-sub{font-size:10px}
  .logo-mark{width:36px;height:36px;border-radius:10px}
  .header-cta{display:none}
  .header-tools{margin-left:0}
  .mini-features{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr}
  .faq-q h3{font-size:15px}
  .section{padding:48px 0}
}

/* roulang page: category2 */
:root {
  --bg-page: #F2F6FC;
  --bg-card: #FFFFFF;
  --brand-blue: #1B5BF6;
  --brand-deep: #0D3B9F;
  --navy-900: #091C3E;
  --navy-800: #102A57;
  --aqua: #49C8E8;
  --violet: #7A63F0;
  --orange: #FFAD4D;
  --text-1: #0B1B33;
  --text-2: #48658B;
  --text-3: #7E93B0;
  --border: #D9E4F2;
  --divider: #E3EBF7;
  --white: #FFFFFF;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 60px;
  --shadow-card: 0 2px 10px rgba(10, 30, 80, 0.06);
  --shadow-hover: 0 16px 36px rgba(10, 30, 80, 0.12);
  --content-width: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-page);
  color: var(--text-1);
  line-height: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

body.no-scroll {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

button,
input {
  font: inherit;
}

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

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

svg {
  vertical-align: middle;
}

.container {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  border: 0;
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
}

.btn-primary {
  background: var(--brand-blue);
  color: #fff;
  padding: 0 24px;
  height: 48px;
  border-radius: 60px;
  box-shadow: 0 8px 20px rgba(27, 91, 246, 0.22);
}

.btn-primary:hover {
  background: var(--brand-deep);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(13, 59, 159, 0.24);
}

.btn-light {
  background: #fff;
  color: var(--brand-deep);
  padding: 0 28px;
  height: 48px;
  border-radius: 60px;
  box-shadow: 0 8px 20px rgba(8, 24, 48, 0.16);
}

.btn-light:hover {
  background: #F0F6FF;
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.68);
  color: #fff;
  padding: 0 28px;
  height: 48px;
  border-radius: 60px;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: #fff;
  transform: translateY(-2px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #fff;
  border-bottom: 1px solid rgba(217, 228, 242, 0.82);
}

.site-header.scrolled {
  box-shadow: 0 6px 24px rgba(10, 30, 80, 0.08);
}

.header-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-mark svg {
  width: 36px;
  height: 36px;
  fill: var(--brand-blue);
  display: block;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-primary {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-1);
  letter-spacing: 0.02em;
}

.logo-sub {
  font-size: 12px;
  font-weight: 700;
  color: var(--brand-blue);
  letter-spacing: 0.28em;
  margin-top: 3px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: 16px;
}

.nav-link {
  position: relative;
  padding: 8px 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-2);
  border-radius: 8px;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--brand-blue);
}

.nav-link.active {
  color: var(--brand-blue);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand-blue);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.nav-search {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  width: 240px;
  padding: 0 16px;
  background: var(--bg-page);
  border: 1px solid transparent;
  border-radius: 60px;
  transition: background 0.2s ease, border 0.2s ease, box-shadow 0.2s ease;
}

.nav-search:focus-within {
  background: #fff;
  border: 2px solid var(--brand-blue);
  width: 238px;
  height: 42px;
  box-shadow: 0 0 0 3px rgba(27, 91, 246, 0.16);
}

.nav-search svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  fill: none;
  stroke: var(--text-3);
  stroke-width: 2;
}

.nav-search input {
  border: 0;
  background: transparent;
  outline: none;
  width: 100%;
  font-size: 14px;
  color: var(--text-1);
}

.nav-search input::placeholder {
  color: var(--text-3);
}

.header-cta {
  height: 44px;
  padding: 0 22px;
  border-radius: 60px;
  background: var(--brand-blue);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
}

.header-cta:hover {
  background: var(--brand-deep);
  box-shadow: 0 8px 22px rgba(27, 91, 246, 0.24);
  transform: translateY(-1px);
}

.burger {
  display: none;
  margin-left: 2px;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 12px;
  background: var(--bg-page);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.burger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-1);
  border-radius: 4px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.burger.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.burger.open span:nth-child(2) {
  opacity: 0;
}

.burger.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.member-hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  color: #fff;
  padding: 76px 0;
  background-image: linear-gradient(105deg, rgba(8, 24, 48, 0.92) 4%, rgba(8, 24, 48, 0.68) 42%, rgba(8, 24, 48, 0.36) 68%, rgba(8, 24, 48, 0.84) 100%), url('/assets/images/backpic/back-1.webp');
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1120px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: #D6E6FF;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.20);
  border-radius: 60px;
  padding: 8px 16px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--aqua);
}

.hero-title {
  font-size: clamp(32px, 4.4vw, 54px);
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: 0.01em;
  max-width: 840px;
  text-shadow: 0 4px 20px rgba(4, 12, 30, 0.42);
}

.hero-lead {
  max-width: 720px;
  margin-top: 22px;
  font-size: 17px;
  line-height: 1.9;
  color: #E5EEFC;
  text-shadow: 0 2px 10px rgba(4, 12, 30, 0.3);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 34px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 38px;
}

.hero-badges li {
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 60px;
  padding: 7px 15px;
  font-size: 13px;
  color: #F4F9FF;
  backdrop-filter: blur(4px);
}

.process-section {
  background: #fff;
  padding: 92px 0 80px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 44px;
}

.section-title {
  font-size: 26px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--text-1);
}

.title-stick {
  display: inline-block;
  width: 5px;
  height: 22px;
  background: var(--brand-blue);
  border-radius: 4px;
  margin-right: 12px;
  vertical-align: -3px;
}

.section-sub {
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.8;
  max-width: 640px;
  margin-top: 10px;
}

.section-more a {
  color: var(--brand-blue);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.section-more a::after {
  content: " →";
  transition: margin-left 0.2s ease;
}

.section-more a:hover::after {
  margin-left: 5px;
}

.process-list {
  position: relative;
  max-width: 1120px;
  margin: 52px auto 0;
}

.process-list::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 48px;
  bottom: 48px;
  width: 2px;
  background: linear-gradient(to bottom, var(--brand-blue), var(--aqua) 60%, rgba(73, 200, 232, 0.16));
  transform: translateX(-50%);
  border-radius: 4px;
}

.process-step {
  display: flex;
  align-items: center;
  gap: 6%;
  margin-bottom: 64px;
  position: relative;
  z-index: 1;
}

.process-step:last-child {
  margin-bottom: 0;
}

.process-step:nth-child(even) {
  flex-direction: row-reverse;
}

.step-media,
.step-text {
  width: 47%;
}

.step-media {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  aspect-ratio: 16 / 10;
  background: var(--divider);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.process-step:hover .step-media {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.step-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.process-step:hover .step-media img {
  transform: scale(1.03);
}

.step-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(9, 28, 62, 0) 50%, rgba(9, 28, 62, 0.30) 100%);
}

.step-text {
  background: #fff;
  border: 1px solid var(--divider);
  border-radius: 18px;
  padding: 34px;
  box-shadow: 0 8px 30px rgba(10, 30, 80, 0.04);
}

.step-number {
  display: block;
  font-size: 62px;
  font-weight: 900;
  line-height: 1;
  color: rgba(27, 91, 246, 0.14);
  letter-spacing: -0.04em;
  margin-bottom: 14px;
  font-feature-settings: "tnum";
}

.step-text h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-1);
  line-height: 1.5;
  margin-bottom: 14px;
}

.step-text p {
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.9;
}

.tools-section {
  padding: 96px 0;
  background: linear-gradient(180deg, #F7FAFF 0%, #EDF3FC 100%);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
}

.tool-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 34px;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.3s ease, background 0.25s ease;
  overflow: hidden;
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.tool-card.feature {
  grid-column: span 4;
  color: #fff;
  background: linear-gradient(135deg, #12306E 0%, #0B1F4A 60%, #081532 100%);
  border: 0;
  min-height: 330px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.tool-card.linked-card {
  grid-column: span 2;
}

.tool-card.standard {
  grid-column: span 3;
}

.tool-card.security {
  grid-column: span 3;
  background: linear-gradient(135deg, #E9F5FF 0%, #F6FAFF 100%);
  border: 1px solid #CEE5FA;
}

.tool-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.tool-icon svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: var(--brand-blue);
  stroke-width: 1.9;
}

.feature-icon svg {
  stroke: #fff;
}

.tool-card.feature .tool-icon {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.24);
}

.tool-card.linked-card .tool-icon,
.tool-card.standard .tool-icon {
  background: #EDF3FF;
}

.tool-card.security .tool-icon {
  background: #DCEAFC;
}

.tool-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.5;
}

.tool-card p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-2);
}

.tool-card.feature h3 {
  color: #fff;
  font-size: 22px;
}

.tool-card.feature p {
  color: #D7E4FA;
  max-width: 540px;
}

.tool-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 22px;
  color: var(--brand-blue);
  font-weight: 700;
  font-size: 15px;
}

.tool-card.feature .tool-link {
  color: #fff;
  background: rgba(255, 255, 255, 0.14);
  padding: 10px 18px;
  border-radius: 60px;
  gap: 8px;
  margin-top: 28px;
  align-self: flex-start;
}

.tool-link:hover {
  opacity: 0.85;
}

.service-note {
  background: linear-gradient(135deg, #0B1F4A 0%, #091C3E 55%, #102A57 100%);
  color: #fff;
  padding: 78px 0;
}

.note-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.note-info {
  max-width: 720px;
}

.note-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.12);
  color: var(--aqua);
  font-size: 22px;
  margin-bottom: 18px;
}

.note-info h2 {
  font-size: 26px;
  font-weight: 800;
  line-height: 1.5;
}

.note-info p {
  color: #C9DCFF;
  margin-top: 14px;
  line-height: 1.9;
  font-size: 16px;
  max-width: 660px;
}

.note-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  flex-shrink: 0;
}

.btn-line-white {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.6);
  color: #fff;
  height: 48px;
  padding: 0 24px;
  border-radius: 60px;
  font-weight: 700;
  transition: background 0.2s ease, border 0.2s ease;
}

.btn-line-white:hover {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid #fff;
}

.scene-section {
  background: #fff;
  padding: 96px 0;
}

.scene-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: 64px;
}

.scene-media {
  position: relative;
}

.scene-main-img {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  aspect-ratio: 4 / 3;
}

.scene-main-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scene-mini-card {
  position: absolute;
  left: -14px;
  bottom: 24px;
  background: #fff;
  border: 1px solid var(--divider);
  border-radius: 16px;
  padding: 16px 18px;
  box-shadow: var(--shadow-hover);
  display: flex;
  gap: 12px;
  max-width: 260px;
}

.scene-mini-card svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: var(--brand-blue);
  stroke-width: 2;
  flex-shrink: 0;
}

.scene-mini-card strong {
  display: block;
  font-size: 15px;
  margin-bottom: 4px;
}

.scene-mini-card span {
  color: var(--text-3);
  font-size: 13px;
}

.scene-content h2 {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.4;
}

.scene-content > p {
  color: var(--text-2);
  line-height: 1.9;
  font-size: 16px;
  margin: 22px 0 30px;
}

.scene-topic-list {
  display: grid;
  gap: 14px;
}

.scene-topic-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--bg-page);
  border-radius: 14px;
  padding: 18px 20px;
  border: 1px solid transparent;
  transition: border 0.2s ease, background 0.2s ease;
}

.scene-topic-list li:hover {
  border: 1px solid var(--border);
  background: #fff;
}

.topic-num {
  font-size: 12px;
  font-weight: 800;
  background: var(--brand-blue);
  color: #fff;
  width: 28px;
  min-width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.scene-topic-list h3 {
  font-size: 16px;
  margin-bottom: 5px;
  color: var(--text-1);
}

.scene-topic-list p {
  color: var(--text-3);
  font-size: 14px;
  line-height: 1.8;
}

.faq-section {
  padding: 96px 0;
  background: var(--bg-page);
}

.faq-shell {
  max-width: 980px;
  margin: 52px auto 0;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow 0.25s ease, border 0.25s ease;
}

.faq-item.open {
  border: 1px solid #B5D2FF;
  box-shadow: 0 12px 26px rgba(10, 30, 80, 0.08);
}

.faq-q {
  width: 100%;
  padding: 22px 26px;
  border: 0;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-1);
  line-height: 1.6;
  cursor: pointer;
  transition: color 0.2s ease;
}

.faq-q:hover {
  color: var(--brand-blue);
}

.faq-icon {
  position: relative;
  width: 28px;
  min-width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #EEF4FF;
  transition: background 0.2s ease, transform 0.3s ease;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  border-radius: 2px;
  background: var(--brand-blue);
}

.faq-icon::before {
  left: 8px;
  right: 8px;
  top: 13px;
  height: 2px;
}

.faq-icon::after {
  top: 8px;
  bottom: 8px;
  left: 13px;
  width: 2px;
  transition: opacity 0.2s ease;
}

.faq-item.open .faq-icon {
  background: var(--brand-blue);
  transform: rotate(45deg);
}

.faq-item.open .faq-icon::before,
.faq-item.open .faq-icon::after {
  background: #fff;
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-a-inner {
  padding: 0 28px 24px 27px;
  color: var(--text-2);
  line-height: 1.85;
  font-size: 15px;
  border-top: 1px dashed var(--divider);
  padding-top: 16px;
  margin-top: 2px;
}

.cta-light {
  padding: 72px 0 84px;
  background: linear-gradient(180deg, #E8F1FF 0%, #F6FAFF 100%);
  position: relative;
}

.cta-light .container {
  position: relative;
  z-index: 1;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  border: 1px solid #D8E7FB;
  background: rgba(255, 255, 255, 0.865);
  border-radius: 22px;
  padding: 40px 44px;
  box-shadow: var(--shadow-card);
}

.cta-copy {
  max-width: 700px;
}

.cta-copy h2 {
  font-size: 24px;
  font-weight: 800;
  line-height: 1.5;
}

.cta-copy p {
  color: var(--text-2);
  margin-top: 12px;
  line-height: 1.8;
}

.cta-note {
  color: var(--text-3);
  font-size: 13px;
  text-align: center;
  margin-top: 20px;
}

.site-footer {
  background: #081532;
  color: #B9C9E3;
  padding-top: 60px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1.2fr;
  gap: 46px;
  padding-bottom: 42px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 22px 0 20px;
  color: #788CB0;
  font-size: 13px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-slogan {
  max-width: 440px;
  line-height: 1.8;
  font-size: 14px;
  margin-top: 16px;
  color: #A8BCD9;
}

.footer-title {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: #B9C9E3;
  font-size: 14px;
  transition: color 0.2s ease;
}

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

.footer-contact {
  display: grid;
  gap: 14px;
}

.footer-contact li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
}

.footer-contact svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 3px;
  stroke: var(--aqua);
  fill: rgba(255, 255, 255, 0.7);
}

.site-footer .logo .logo-primary,
.site-footer .logo .logo-sub {
  color: #fff;
}

.site-footer .logo-mark svg {
  fill: #fff;
}

.footer-only {
  color: #A8BCD9;
}

@media (max-width: 1100px) {
  .header-inner {
    gap: 14px;
  }

  .main-nav {
    gap: 18px;
  }

  .nav-search {
    width: 190px;
  }

  .nav-search:focus-within {
    width: 188px;
  }

  .footer-top {
    grid-template-columns: 1.3fr 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .burger {
    display: inline-flex;
  }

  .main-nav {
    display: flex;
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 990;
    margin: 0;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 6px;
    padding: 40px 24px 30px;
    background: linear-gradient(160deg, #102A57 0%, #081532 100%);
    box-shadow: 0 20px 40px rgba(4, 12, 30, 0.25);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  }

  .main-nav.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .main-nav .nav-link {
    padding: 14px 26px;
    color: #D7E4FA;
    font-size: 17px;
    width: 220px;
    text-align: center;
    border-radius: 12px;
  }

  .main-nav .nav-link:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
  }

  .main-nav .nav-link.active {
    color: #fff;
    background: rgba(73, 200, 232, 0.16);
  }

  .nav-link.active::after {
    display: none;
  }

  .header-tools {
    gap: 10px;
  }

  .nav-search {
    display: none;
  }

  .header-cta {
    padding: 0 18px;
    font-size: 13px;
    height: 40px;
  }

  .hero-title {
    font-size: clamp(30px, 6vw, 44px);
  }

  .note-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .tools-grid {
    grid-template-columns: 1fr;
  }

  .tool-card.feature,
  .tool-card.linked-card,
  .tool-card.standard,
  .tool-card.security {
    grid-column: auto;
  }

  .scene-grid {
    grid-template-columns: 1fr;
    gap: 46px;
  }

  .scene-mini-card {
    left: 12px;
    bottom: 16px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .header-inner {
    height: 62px;
    padding: 0 16px;
  }

  .main-nav {
    top: 62px;
  }

  .logo-primary {
    font-size: 17px;
  }

  .logo-sub {
    font-size: 11px;
    letter-spacing: 0.16em;
  }

  .logo-mark svg {
    width: 32px;
    height: 32px;
  }

  .header-cta {
    padding: 0 13px;
    font-size: 12px;
    border-radius: 14px;
  }

  .member-hero {
    min-height: 480px;
    padding: 60px 0;
    background-position: 68% center;
  }

  .hero-eyebrow {
    font-size: 13px;
    padding: 7px 14px;
  }

  .hero-title {
    font-size: 30px;
  }

  .hero-lead {
    font-size: 15px;
  }

  .hero-actions {
    gap: 12px;
  }

  .btn-light,
  .btn-ghost {
    height: 44px;
    padding: 0 20px;
    font-size: 14px;
  }

  .hero-badges {
    margin-top: 26px;
  }

  .process-section {
    padding: 60px 0 52px;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 30px;
  }

  .section-title {
    font-size: 21px;
  }

  .section-sub {
    font-size: 14px;
  }

  .section-more {
    margin-top: -4px;
  }

  .process-list::before {
    left: 15px;
    top: 0;
    bottom: 0;
  }

  .process-step,
  .process-step:nth-child(even) {
    flex-direction: column;
    gap: 18px;
    margin-bottom: 42px;
  }

  .step-media,
  .step-text {
    width: 100%;
  }

  .step-media {
    aspect-ratio: 16 / 10;
  }

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

  .process-step:hover .step-media {
    transform: none;
  }

  .step-text {
    padding: 24px;
  }

  .step-number {
    font-size: 48px;
  }

  .step-text h3 {
    font-size: 18px;
  }

  .tools-section {
    padding: 64px 0;
  }

  .tool-card {
    padding: 26px;
  }

  .tool-card.feature {
    min-height: 0;
    padding: 30px 26px;
  }

  .service-note {
    padding: 62px 0;
  }

  .note-inner {
    gap: 24px;
  }

  .note-info h2 {
    font-size: 22px;
  }

  .note-info p {
    font-size: 15px;
  }

  .note-actions {
    width: 100%;
  }

  .btn-line-white {
    width: 100%;
  }

  .scene-section {
    padding: 64px 0;
  }

  .scene-grid {
    gap: 34px;
  }

  .scene-main-img {
    aspect-ratio: 4 / 4.4;
  }

  .scene-mini-card {
    bottom: 14px;
    left: 8px;
    padding: 12px 14px;
  }

  .scene-content h2 {
    font-size: 22px;
  }

  .faq-section {
    padding: 64px 0;
  }

  .faq-q {
    font-size: 16px;
    padding: 18px 18px;
  }

  .faq-a-inner {
    padding: 14px 20px 20px;
    font-size: 14px;
  }

  .cta-light {
    padding: 56px 0 60px;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 28px 22px;
  }

  .cta-copy h2 {
    font-size: 21px;
  }

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 40px 0 34px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    font-size: 12px;
  }
}

/* roulang page: category4 */
:root {
  --bg: #F2F6FC;
  --card: #FFFFFF;
  --ink: #0B1B33;
  --muted: #48658B;
  --soft: #7E93B0;
  --line: #D9E4F2;
  --slate: #E3EBF7;
  --brand: #1B5BF6;
  --brand-deep: #0D3B9F;
  --navy: #091C3E;
  --navy-2: #102A57;
  --cyan: #49C8E8;
  --violet: #7A63F0;
  --amber: #FFAD4D;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(10, 30, 80, .06);
  --shadow-lg: 0 16px 36px rgba(10, 30, 80, .12);
  --transition: .22s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
  color: inherit;
}

input:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(27, 91, 246, .22);
  outline-offset: 2px;
  border-radius: 6px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 1px 0 rgba(10, 30, 80, .05);
  transition: box-shadow var(--transition), background var(--transition);
}

.site-header.scrolled {
  background: #fff;
  box-shadow: 0 10px 30px rgba(10, 30, 80, .08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  height: 70px;
  position: relative;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 13px;
  background: linear-gradient(135deg, #1B5BF6, #0D3B9F);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 18px rgba(27, 91, 246, .28);
}

.logo-mark svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.logo-text {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-primary {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: .01em;
  color: var(--ink);
}

.logo-sub {
  margin-top: 2px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--brand);
  text-indent: .06em;
}

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

.nav-link {
  position: relative;
  padding: 9px 13px;
  font-size: 14px;
  font-weight: 500;
  color: #33465f;
  border-radius: 10px;
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover {
  color: var(--brand);
  background: rgba(27, 91, 246, .06);
}

.nav-link.active {
  color: var(--brand);
  font-weight: 700;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 4px;
  height: 2px;
  background: var(--brand);
  border-radius: 4px;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.nav-search {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #F4F7FC;
  border: 1px solid var(--line);
  border-radius: 60px;
  padding: 0 12px;
  height: 40px;
  transition: border var(--transition), box-shadow var(--transition), background var(--transition);
}

.nav-search svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}

.nav-search input {
  width: 138px;
  border: 0;
  outline: 0;
  background: transparent;
  font-size: 13px;
  color: var(--ink);
}

.nav-search::placeholder {
  color: var(--soft);
}

.nav-search:focus-within {
  border-color: var(--brand);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(27, 91, 246, .12);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 0;
  padding: 10px 18px;
  font-weight: 700;
  font-size: 15px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border var(--transition);
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 8px 18px rgba(27, 91, 246, .24);
}

.btn-primary:hover {
  background: var(--brand-deep);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(13, 59, 159, .22);
}

.header-cta {
  height: 40px;
  padding: 0 16px;
}

.btn-white {
  background: #fff;
  color: var(--brand-deep);
  box-shadow: 0 8px 20px rgba(4, 18, 48, .18);
}

.btn-white:hover {
  transform: translateY(-2px);
  background: #EAF1FF;
  box-shadow: 0 12px 26px rgba(4, 18, 48, .22);
}

.btn-outline {
  color: #fff;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .58);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .04);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, .14);
  border-color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, .12);
}

.burger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--slate);
  background: #fff;
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
}

.burger span {
  position: relative;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 4px;
  transition: background .2s;
}

.burger span::before,
.burger span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 4px;
  transition: transform .2s;
}

.burger span::before {
  top: -6px;
}

.burger span::after {
  top: 6px;
}

.burger.active span {
  background: transparent;
}

.burger.active span::before {
  transform: translateY(6px) rotate(45deg);
}

.burger.active span::after {
  transform: translateY(-6px) rotate(-45deg);
}

.page-hero {
  position: relative;
  color: #fff;
  padding: 108px 0 142px;
  background-image: linear-gradient(102deg, rgba(7, 22, 56, .94) 0%, rgba(10, 31, 78, .82) 46%, rgba(8, 24, 48, .68) 100%), url("/assets/images/backpic/back-3.webp");
  background-size: cover;
  background-position: center 70%;
}

.page-hero-inner {
  max-width: 880px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(73, 200, 232, .16);
  border: 1px solid rgba(73, 200, 232, .32);
  color: #D9F4FF;
  font-size: 13px;
  font-weight: 600;
  padding: 5px 13px;
  border-radius: 60px;
  margin-bottom: 18px;
}

.hero-eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(73, 200, 232, .18);
}

.page-hero h1 {
  font-size: clamp(34px, 4.4vw, 52px);
  line-height: 1.2;
  font-weight: 800;
  margin: 14px 0 18px;
  letter-spacing: .02em;
  text-shadow: 0 8px 28px rgba(0, 0, 0, .18);
}

.hero-lead {
  margin: 0;
  font-size: 17px;
  line-height: 1.95;
  color: rgba(255, 255, 255, .9);
  max-width: 760px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 38px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: rgba(255, 255, 255, .92);
  background: rgba(255, 255, 255, .09);
  border: 1px solid rgba(255, 255, 255, .16);
  padding: 6px 12px;
  border-radius: 60px;
  backdrop-filter: blur(6px);
}

.quick-guide-area {
  position: relative;
  z-index: 6;
  margin-top: -68px;
  padding-bottom: 18px;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.quick-card {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  background: #fff;
  border: 1px solid rgba(217, 228, 242, .8);
  border-radius: 18px;
  padding: 20px 18px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border var(--transition);
}

.quick-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #C7D8F2;
}

.quick-icon {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: linear-gradient(135deg, var(--brand), #3771FF);
  box-shadow: 0 6px 14px rgba(27, 91, 246, .2);
}

.quick-icon svg {
  width: 19px;
  height: 19px;
  fill: #fff;
}

.quick-copy {
  min-width: 0;
}

.quick-title {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 3px;
}

.quick-text {
  display: block;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
}

.area {
  padding: 66px 0 20px;
}

.area-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 34px;
}

.area-kicker {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 6px;
  letter-spacing: .04em;
}

.area-head h2 {
  font-size: clamp(24px, 2.6vw, 30px);
  font-weight: 800;
  line-height: 1.35;
  margin: 0;
  letter-spacing: .01em;
}

.area-note {
  margin: 0;
  max-width: 420px;
  font-size: 14px;
  color: var(--muted);
  text-align: right;
}

.split-card {
  display: grid;
  grid-template-columns: 1.02fr .98fr;
  background: #fff;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--slate);
}

.split-media {
  min-height: 380px;
  background: #DCE6F5;
  position: relative;
}

.split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.split-content {
  padding: 38px 42px;
  align-self: center;
}

.split-content h3 {
  font-size: 21px;
  font-weight: 750;
  margin: 0 0 10px;
}

.split-content > p {
  color: var(--muted);
  font-size: 15px;
  margin: 0 0 18px;
}

.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.feature-item {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: var(--ink);
  line-height: 1.75;
}

.feature-item svg {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  margin-top: 5px;
  color: var(--brand);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 22px;
}

.step-card {
  grid-column: span 6;
  border: 1px solid var(--slate);
  background: #fff;
  color: var(--ink);
  border-radius: 22px;
  padding: 28px 30px;
  min-height: 232px;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.step-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.step-card:first-child {
  grid-column: span 7;
}

.step-card:nth-child(2) {
  grid-column: span 5;
}

.step-card:nth-child(3) {
  grid-column: span 5;
}

.step-card:nth-child(4) {
  grid-column: span 7;
}

.step-main {
  color: #fff;
  border: 0;
  background-image: linear-gradient(114deg, rgba(13, 59, 159, .96) 0%, rgba(9, 28, 62, .92) 100%), url("/assets/images/coverpic/cover-8.webp");
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.step-num {
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--brand);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  font-feature-settings: "tnum";
}

.step-num i {
  font-style: normal;
  width: 32px;
  height: 2px;
  background: var(--cyan);
  border-radius: 4px;
}

.step-card h3 {
  font-size: 19px;
  font-weight: 750;
  margin: 0 0 12px;
  letter-spacing: .01em;
}

.step-card p {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.85;
  max-width: 520px;
}

.step-main .step-num {
  color: #fff;
}

.step-main p {
  color: rgba(255, 255, 255, .88);
}

.step-link {
  margin-top: auto;
  font-size: 13px;
  font-weight: 700;
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.step-main a.step-link {
  color: #EAF2FF;
}

.step-link svg {
  width: 15px;
  height: 15px;
  stroke: currentColor;
  fill: none;
  transition: transform .2s;
}

.step-link:hover svg {
  transform: translateX(4px);
}

.guide-banner-area {
  padding: 66px 0 20px;
}

.topic-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr .9fr;
  gap: 20px;
}

.topic-card {
  position: relative;
  min-height: 330px;
  border-radius: 22px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: #fff;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.topic-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.topic-card .card-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.topic-card:hover .card-bg {
  transform: scale(1.05);
}

.topic-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(5, 18, 45, .25) 0%, rgba(4, 16, 40, .52) 55%, rgba(3, 13, 36, .9) 100%);
}

.topic-content {
  position: relative;
  z-index: 2;
  padding: 28px;
}

.topic-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: #DFF1FF;
  background: rgba(255, 255, 255, .15);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 60px;
  padding: 4px 11px;
  margin-bottom: 14px;
}

.topic-label::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--cyan);
  border-radius: 50%;
}

.topic-content strong {
  display: block;
  font-size: 19px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 8px;
}

.topic-content span:not(.topic-label) {
  display: block;
  font-size: 13px;
  color: rgba(255, 255, 255, .84);
  line-height: 1.75;
  margin-bottom: 14px;
}

.topic-action {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
}

.topic-action svg {
  width: 16px;
  height: 16px;
  transition: transform .2s;
}

.topic-card:hover .topic-action svg {
  transform: translateX(5px);
}

.alert-area {
  padding: 64px 0 18px;
}

.alert-band {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  border-radius: 26px;
  overflow: hidden;
  color: #fff;
  background-image: linear-gradient(131deg, rgba(13, 59, 159, .93) 0%, rgba(9, 28, 62, .92) 70%), url("/assets/images/backpic/back-2.webp");
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow-lg);
}

.alert-copy {
  padding: 46px 46px 44px;
}

.alert-copy .area-kicker {
  color: var(--cyan);
}

.alert-copy h2 {
  font-size: clamp(23px, 2.4vw, 30px);
  margin: 0 0 14px;
  line-height: 1.35;
}

.alert-copy > p {
  color: rgba(255, 255, 255, .82);
  font-size: 15px;
  margin: 0 0 22px;
  max-width: 560px;
}

.alert-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.alert-list li {
  display: flex;
  gap: 10px;
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  color: rgba(255, 255, 255, .9);
}

.alert-list li::before {
  content: "!";
  position: absolute;
  left: 0;
  top: 2px;
  width: 16px;
  height: 16px;
  background: rgba(255, 173, 77, .92);
  color: #0E2A58;
  font-size: 11px;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.alert-media {
  position: relative;
  min-height: 300px;
  background: #102A57;
}

.alert-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.faq-area {
  padding: 64px 0 20px;
}

.faq-panel {
  max-width: 940px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--slate);
  border-radius: 18px;
  padding: 20px 26px;
  margin-bottom: 12px;
  transition: border var(--transition), box-shadow var(--transition), background var(--transition);
}

.faq-item:hover {
  border-color: #C7D6F1;
  box-shadow: var(--shadow-sm);
}

.faq-item.open {
  background: #F7FAFF;
  border-color: #A9C4F7;
}

.faq-q {
  width: 100%;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  gap: 18px;
}

.faq-icon {
  position: relative;
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #F2F6FC;
  transition: background var(--transition), transform var(--transition), border var(--transition);
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 2px;
  background: var(--brand);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: transform .25s;
}

.faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item.open .faq-icon {
  background: var(--brand);
  border-color: var(--brand);
  transform: rotate(180deg);
}

.faq-item.open .faq-icon::before {
  background: #fff;
}

.faq-item.open .faq-icon::after {
  background: #fff;
  transform: translate(-50%, -50%) rotate(0deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height .35s ease, opacity .3s ease, padding .3s ease;
}

.faq-a p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
  padding-top: 14px;
}

.faq-item.open .faq-a {
  max-height: 360px;
  opacity: 1;
}

.cta-area {
  padding: 64px 0 80px;
}

.cta-panel {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  color: #fff;
  padding: 58px 64px;
  background-image: linear-gradient(120deg, rgba(7, 21, 52, .96) 0%, rgba(10, 35, 85, .88) 58%, rgba(11, 31, 74, .72) 100%), url("/assets/images/backpic/back-1.webp");
  background-size: cover;
  background-position: center;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 42px;
}

.cta-copy {
  max-width: 660px;
}

.cta-kicker {
  font-size: 13px;
  font-weight: 700;
  color: var(--cyan);
  display: block;
  margin-bottom: 10px;
}

.cta-panel h2 {
  font-size: clamp(24px, 2.8vw, 33px);
  font-weight: 800;
  line-height: 1.4;
  margin: 0 0 14px;
}

.cta-copy p {
  color: rgba(255, 255, 255, .84);
  line-height: 1.85;
  font-size: 15px;
  margin: 0;
}

.cta-actions {
  display: inline-flex;
  flex-direction: column;
  gap: 12px;
  flex-shrink: 0;
}

.cta-mail {
  font-size: 13px;
  color: rgba(255, 255, 255, .78);
  text-align: center;
}

.site-footer {
  background: var(--navy);
  color: #C9D8F0;
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  width: 480px;
  height: 240px;
  right: -120px;
  top: -100px;
  background: radial-gradient(circle, rgba(73, 200, 232, .1) 0%, transparent 70%);
  pointer-events: none;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.1fr 1.5fr;
  gap: 42px;
  padding: 58px 0 40px;
  position: relative;
  z-index: 1;
}

.footer-top .logo-primary {
  color: #fff;
}

.footer-top .logo-sub {
  color: #8DC4F7;
}

.footer-slogan {
  margin: 18px 0 0;
  max-width: 330px;
  color: #9FB4D0;
  font-size: 14px;
  line-height: 1.95;
}

.footer-title {
  margin: 4px 0 16px;
  font-size: 16px;
  color: #fff;
  font-weight: 700;
}

.footer-links {
  display: grid;
  gap: 9px;
}

.footer-links a {
  color: #AFC2DD;
  font-size: 13px;
  transition: color .2s ease, transform .2s ease;
  display: inline-flex;
  align-items: center;
  width: fit-content;
}

.footer-links a::before {
  content: "";
  width: 4px;
  height: 4px;
  background: var(--cyan);
  border-radius: 50%;
  margin-right: 8px;
  opacity: .8;
}

.footer-links a:hover {
  color: #fff;
  transform: translateX(3px);
}

.footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 13px;
  font-size: 13px;
  color: #AFC2DD;
}

.footer-contact li {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  line-height: 1.7;
  word-break: break-all;
}

.footer-contact svg {
  width: 17px;
  height: 17px;
  stroke: #6A8FC4;
  flex: 0 0 17px;
  margin-top: 3px;
}

.footer-bottom {
  border-top: 1px solid rgba(217, 228, 242, .13);
  padding: 22px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
  color: #7892B6;
  font-size: 13px;
}

.footer-only {
  color: #9FB4D0;
}

@media (max-width: 1024px) {
  .nav-search {
    display: none;
  }
  .main-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: #fff;
    border-top: 1px solid var(--slate);
    box-shadow: 0 16px 32px rgba(10, 30, 80, .12);
    padding: 18px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    transform: translateY(-16px);
    visibility: hidden;
    opacity: 0;
    transition: transform .22s ease, opacity .22s ease, visibility .22s ease;
    border-radius: 0 0 18px 18px;
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-link {
    display: block;
    padding: 12px 15px;
    text-align: center;
  }
  .nav-link.active::after {
    display: none;
  }
  .nav-link.active {
    background: rgba(27, 91, 246, .08);
  }
  .burger {
    display: inline-flex;
  }
  .quick-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .split-card {
    grid-template-columns: 1fr;
  }
  .split-media {
    min-height: 260px;
    order: 1;
  }
  .split-content {
    order: 2;
    padding: 32px;
  }
  .topic-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .topic-card {
    min-height: 300px;
  }
  .alert-band {
    grid-template-columns: 1fr;
  }
  .alert-media {
    min-height: 260px;
    order: -1;
  }
  .cta-panel {
    flex-direction: column;
    padding: 44px 36px;
  }
  .cta-actions {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .footer-top {
    grid-template-columns: repeat(2, 1fr);
    gap: 38px 30px;
  }
}

@media (max-width: 768px) {
  .area {
    padding: 52px 0 14px;
  }
  .area-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 22px;
  }
  .area-note {
    text-align: left;
    max-width: 100%;
  }
  .steps-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }
  .step-card,
  .step-card:first-child,
  .step-card:nth-child(2),
  .step-card:nth-child(3),
  .step-card:nth-child(4) {
    grid-column: span 1;
    min-height: 0;
    padding: 24px;
  }
  .topic-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .topic-card {
    min-height: 250px;
  }
  .alert-copy {
    padding: 32px 26px;
  }
  .cta-panel {
    padding: 36px 26px;
    border-radius: 22px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 34px;
    padding-top: 48px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }
  .header-inner {
    height: 64px;
    gap: 10px;
  }
  .logo-mark {
    width: 34px;
    height: 34px;
    border-radius: 11px;
  }
  .logo-primary {
    font-size: 16px;
  }
  .logo-sub {
    font-size: 10px;
  }
  .header-cta {
    padding: 0 12px;
    font-size: 13px;
  }
  .main-nav {
    top: 64px;
  }
  .page-hero {
    padding: 88px 0 132px;
  }
  .hero-lead {
    font-size: 15px;
  }
  .hero-badges {
    margin-top: 26px;
  }
  .quick-guide-area {
    margin-top: -60px;
  }
  .quick-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .quick-card {
    padding: 16px 18px;
  }
  .split-content {
    padding: 26px 22px;
  }
  .split-media {
    min-height: 220px;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .step-card {
    min-height: 0;
  }
  .step-main {
    background-position: 70% center;
  }
  .feature-list {
    gap: 12px;
  }
  .faq-item {
    padding: 18px;
  }
  .faq-q {
    font-size: 14px;
  }
  .cta-actions {
    flex-direction: column;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}